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155results about How to "Realize a tight connection" patented technology
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Full-set dismantling and installing construction method of bridge overpassing existing line
ActiveCN106149576ASimple stepsReasonable designBuilding repairsBridge erection/assemblyBuilding constructionEngineering
Owner:中铁二十局集团第三工程有限公司
Vertical type shell-and-tube heat exchanger
ActiveCN106017136AEasy dischargeRealize a tight connectionHeat exhanger conduitsStationary conduit assembliesPlate heat exchangerShell and tube heat exchanger
The invention relates to a vertical type shell-and-tube heat exchanger. The vertical type shell-and-tube heat exchanger is characterized by comprising a vertically arranged shell; the upper end and the lower end of the shell are each connected with a channel through a tube plate; a shell side inlet tube is arranged on one side of the upper end of the shell; a shell side outlet tube is arranged on one side of the lower end of the shell; a tube side inlet tube is arranged at the top of the channel arranged at the upper end of the shell, and a tube side outlet tube is arranged at the bottom of the channel arranged at the lower end of the shell; a plurality of baffle plates provided with notches are arranged inside the shell at intervals in a staggered mode; every two adjacent baffle plates are fastened to the side walls on different sides of the shell correspondingly; passages allowing fluid to flow are formed between the baffle plates; the free end of each baffle plate is lower than the connecting end of each baffle plate; a heat exchange tube bundle penetrates through the baffle plates; and the two ends of the heat exchange tube bundle are fastened to the two tube plates. The baffle plates located on the same side of the shell are mutually parallel. An included angle between each baffle plate and the horizontal plane is 15-25 degrees. The vertical type shell-and-tube heat exchanger can prevent accumulated liquid from forming on the baffle plates, the heat exchange effect is improved, and the service life of the vertical type shell-and-tube heat exchanger is prolonged.
Owner:CHINA NAT OFFSHORE OIL CORP +1
Bridge warning device convenient to mount and dismount
InactiveCN106816040ASame sizeImprove sealingCasings/cabinets/drawers detailsMarine craft traffic controlEngineering
The present invention discloses a bridge warning device convenient to mount and dismount. The device comprises a mounting base and a warning unit. The right side wall of the mounting base is provided with a groove in matched connection with the warning unit. The right side wall of the mounting base is provided with handle grooves above and below the above groove and at an equal distance from the above groove. The upper end wall and the lower end wall of the warning unit are provided with handles capable of being accommodated inside the handle grooves. On the left side of the groove, the mounting base is internally provided with a first sliding cavity and a second sliding cavity, wherein the first sliding cavity and the second sliding cavity are equivalently arranged up and down. Between the first sliding cavity and the second sliding cavity, the mounting base is internally provided with an unlocking sliding cavity. A run-through connection groove configured to run through the unlocking sliding cavity is arranged between the left bottom of the first sliding cavity and the left top of the second sliding cavity. The right bottom of the first sliding cavity and the right bottom of the second sliding cavity are provided with downwardly-extending locking grooves. The bridge warning device is simple in structure, time-saving and labor-saving in installation and convenient to maintain.
Owner:杜董
Angle adjustable steel bar quick connecting sleeve
ActiveCN108756073AAchieve clamping and lockingRealize a tight connectionBuilding reinforcementsEngineeringRebar
The invention belongs to the technical field of engineering construction, in particular to an angle adjustable steel bar quick connecting sleeve. The connecting sleeve comprises connecting sleeve bodies, a spring, a locking nut, a locking handle, a clamping module and a screw. Face teeth are arranged in a round area on the stepped surface at one end of each connecting sleeve body. The other end ofthe screw is rotatably connected to one end of the locking handle. A rotating shaft hole in the locking handle is eccentrically disposed with the cylindrical surface. A first cylindrical hole is formed in the end surface at the other end of the connecting sleeve body. The clamping module is arranged in the first cylindrical hole and used for clamping and locking steel bars inserted into the connecting sleeve bodies. Due to the fact that the face teeth are arranged at one end of each connecting sleeve body, and the rotating shaft hole in the locking handle is eccentrically arranged with the cylindrical surface, the angle between two connecting sleeve bodies can be adjusted. The clamping module is arranged in the first cylindrical hole to clamp and lock the steel bars, and finally fasteningconnection of the two steel bars can be achieved.
Owner:大建建筑集团有限公司
Sleeve nut, fastener and installation method of fastener
The invention relates to a sleeve nut, a fastener and an installation method of the fastener. The sleeve nut comprises a base, a sleeve and an interlocking key, wherein the base, the sleeve and the interlocking key are sequentially arranged. The outer diameter of the base is larger than that of the sleeve, and a circumferentially-arranged first knurled gear is arranged at the end, close to the base, of the sleeve. A through hole is formed inside the sleeve, or a threaded hole is formed in the side, close to the interlocking key, of the interior of the sleeve. According to the sleeve nut, as the end provided with the base is connected with a section in an interference fitting mode through the first knurled gear, and the end provided with the interlocking key is buckled to the section through flowing of a material, the sleeve nut is connected with the section in a fastened mode, no requirement for the wall thickness of the section exists, welding and re-tapping are not required, and cost and energy consumption are reduced.
Owner:PEM CHINA
Crossing existing line bridge girder dismounting method
ActiveCN106284109ASimple stepsReasonable designBuilding repairsBridge strengtheningBridge deckRailway line
The invention discloses a crossing existing line bridge girder dismounting method. A dismounted bridge girder is a girder crossing an existing railway line and is formed by splicing a plurality of girder segments to be dismounted from front to back. During complete set dismounting construction of any segment to be dismounted, the process comprises the following steps that firstly, a bridge deck pavement is milled, specifically, the bridge deck pavement of the girder segment constructed currently is milled; secondly, the girder segment is jacked up, specifically, the girder segment constructed currently is horizontally jacked upwards through a vertical jacking device, so that the girder segment constructed currently is separated from two supporting piers; thirdly, preparation operation before hoisting is conducted; and fourthly, the girder segment constructed currently is horizontally hoisted upwards through a bridge girder erection machine and moved to the outer sides of the two supporting piers. The method is simple in step, reasonable in design, easy and convenient to construct and good in application effect, the complete set dismounting construction process of the crossing existing line bridge girder can be completed easily, conveniently and rapidly, and the construction process is safe and reliable, the construction period is short, and the method is economic and practical.
Owner:中铁二十局集团第三工程有限公司
Prefabricated building with good heat insulation performance
The invention discloses a prefabricated building with the good heat insulation performance. The prefabricated building comprises a base plate. A top plate is arranged on the top of the base plate. Theinner ends of heat insulation plates are fixedly connected with decorative plates. The inner ends of side plates are provided with clamping assemblies. Through rotatable connection between the base plate and the side plates, between the side plates and between the side plates and the top plate and arrangement of the heat insulation plates, the prefabricated building with the good heat insulationperformance has the high heat insulation performance. Through clearance fit between clamping rods and transverse grooves and clearance fit between the clamping rods and through holes, the side platescan be vertically tightened, the prefabricated building can be folded and pressed down. Through clearance fit between sliding blocks and sliding grooves and clamping connection between slots and grooves, fulcrum bars can be inserted into the slots by rotating cranked levers and can be tightened by reversely rotating the cranked levers. Through threaded connection of screw rods and cylindrical tubes, cams abut against the cranked levers, and then the top plate below and the base plate above can be in fastened connection. Therefore, the assembly efficiency is greatly improved, and the assembly difficulty is reduced.
Owner:定州市筑业装配式建筑科技有限公司
Ventilated defrosting device arranged on refrigerator door body and refrigerator
ActiveCN104949435AThe solution is not easy to openSolve the problem of energy consumptionLighting and heating apparatusDefrostingRefrigerator carRefrigerated temperature
The invention relates to a ventilated defrosting device arranged on a refrigerator door body and a refrigerator. The refrigerator door body comprises a shell and an inner container. The ventilated defrosting device comprises a molecular sieve box located between the shell and the inner container and enabling the interior and the exterior of the refrigerator to be communicated. According to the ventilated defrosting device arranged on the refrigerator door body and the refrigerator, the molecular sieve box is adopted to connect the inner side and the outer side of a refrigerator body, and the ventilated defrosting device is simple in mounting structure, easy to operate and free of other hoses in connection; the overall structure is suitable for production of different foaming clamps used in the rotating die combination and up-down die combination processes of the refrigerator door body, and the problems that it is difficult to open a door due to negative pressure in the refrigerator, and energy consumption is high due to frosting are solved effectively.
Owner:HEFEI HUALING CO LTD +1
Nickel-titanium shape memory alloy composite pipe joint forming method
InactiveCN102632101AAvoiding Gradient Effect ProblemsHigh strengthRod connectionsNon-disconnectible pipe-jointsInterference fitDouble-walled pipe
The invention aims at providing a nickel-titanium shape memory alloy composite pipe joint forming method comprising the following steps of: assembling two layers of nickel-titanium shape memory pipes together in a way of clearance fit or interference fit to form a double-layer pipe, wherein the inner diameter d0 of the double-layer pipe is less than the outer diameter d2 of two pipes to be connected; performing expanding deformation on the double-layer pipe to enlarge the inner diameter of the double-layer pipe to d1 so as to compound and form the two layers of nickel-titanium shape memory pipes into a whole, wherein the d1 is more than the outer diameter d2 of the pipes to be connected; sheathing a pipe joint with the expanded diameter outside the two pipes to be connected; and recovering the shape of the pipe joint through low-temperature heating, and connecting the two pipes after the pipe joint is automatically contracted, thereby completing the forming of the pipe joint. The nickel-titanium shape memory alloy composite pipe joint forming method overcomes the defect that the wall of the conventional nickel-titanium shape memory alloy pipe joint is excessively thin or thick, and ensures the nickel-titanium shape memory alloy pipe joint to have enough fastening force and enough strength so as to enable the nickel-titanium shape memory alloy pipe joint to have excellent connection performance.
Owner:HARBIN ENG UNIV
Hexagonal hole cross groove indented bolt
InactiveCN105927646ARealize a tight connectionPrevent looseningBoltsScrewsMechanical equipmentEngineering
The invention proposes a hexagonal hole cross groove indented bolt. The hexagonal hole cross groove indented bolt comprises a stud, a hexagonal prism screw cap, an internal hexagonal hole, a cross groove, an antiskid tooth pattern and a thread; the stud is cylindrical; the upper end part of the stud is a smooth cylinder, and a thread with a length being 3 / 5 total length is arranged at the lower end part; the hexagonal prism screw cap is arranged at the top end of the screw cap; the cross groove is formed in the upper end surface of the hexagonal prism screw cap; the internal hexagonal hole with a regularly hexagonal section is formed in the side surface of the hexagonal prism screw cap; and the antiskid tooth pattern is arranged on the lower end surface of the hexagonal prim screw cap. The hexagonal hole cross groove indented bolt effectively solves the bolt thread release problem and the looseness problem of mechanical equipment, reduces damage of mechanical workpieces by thread release in disassembly, prevents the bolt looseness in working of equipment, and lays foundation for normal work of efficient installation and disassembly of the bolt and the equipment.
Owner:海盐瑞利紧固件有限公司
Disassembly-simple display screen device
ActiveCN106641665AImproves robustness and tightnessEasy to disassemble, replace and maintainStands/trestlesComputer engineering
Owner:SHENZHEN WEIMAISI TECH
Assembled aluminum-frame shear wall column formwork structure
PendingCN107386639AControl pouringRealize a tight connectionForms/shuttering/falseworksAuxillary members of forms/shuttering/falseworksEngineeringBoard structure
The invention discloses an assembled aluminum-frame shear wall column formwork structure which comprises a plurality of aluminum-frame formworks and connectors. The aluminum-frame formworks are connected through the connectors which are mounted on the aluminum-frame formworks. The frame surface of each aluminum-frame formwork is provided with a plurality of frame surface holes for adjusting penetrating connection positions of the connectors on the frame surface, and frame sides of each aluminum-frame formwork are provided with frame side holes allowing penetrating connection of the connectors on the frame sides. The lightweight aluminum-frame formworks can be spliced for assembly, and pouring of shear wall columns can be quickly and conveniently controlled while reusability is realized; by fixed connection among the aluminum-frame formworks through the connectors, high assembly efficiency is realized; the aluminum-frame formworks with the multiple frame surface holes is adaptive to shear wall columns in different sizes to realize flexible use, so that universality is improved while the utilization rate is increased.
Owner:江门友建建筑模板有限公司
Sugarcane harvesting machine
PendingCN107810709AChassis heightFlexible moving processMowersAgricultural engineeringMechanical engineering
The invention provides a sugarcane harvesting machine. An adjustable header is positioned at the foremost end of the whole machine; a front end feeding inlet a charging device is movably connected tothe rear side of the adjustable header; a cutting mechanism is arranged at the junction part of the adjustable header and the charging device; an adjustable cylinder is further arranged between the adjustable header and the charging device; a vertical tip cutting device is erected in the middle of the charging device; a feeding device is arranged at the front end of a leaf peeling device; the feeding device is spliced to the rear end of the charging device; the charging device and the leaf peeling device are connected by virtue of the feeding device; the charging device, the feeding device andthe leaf peeling device are combined to form an integral sugarcane stem feed mechanism; a track frame used for supporting a telescopic aggregation device is fastened on a wheeled travelling mechanismby means of soldering; and the aim of suspending the telescopic aggregation device behind the discharge outlet of the leaf peeling device is achieved by virtue of the track frame. The sugarcane harvesting machine has the characteristics of compact structure, more flexible movement, stable operation, higher operation efficiency and stronger practicality.
Owner:曾华山
Wire harness pipe clamp and wire harness device
The invention provides a wire harness pipe clamp and a wire harness device. The wire harness pipe clamp comprises a wire harness ring and a hasp, wherein a first accommodating ring is arranged on thewire harness ring, a second accommodating ring is arranged on the hasp, and the hasp is used for being buckled on the wire harness ring, so that the first accommodating ring and the second accommodating ring define an accommodating cavity for fixing wire harnesses; a second boss is arranged on the buckle, a first boss is arranged on the wire harness ring, and a limit groove is formed in the firstboss, and can be matched with the second boss. According to the technical scheme, the hasp is buckled on the wire harness ring, and the accommodating cavity is formed between the hasp and the wire harness ring so as to fix the wire harnesses or wire pipes. Meanwhile, the second boss is arranged on the harness ring and the first boss is arranged on the hasp, so that fastening connection between a plurality of harness pipe clamps is achieved by the cooperative relationship between the second boss and the first boss, and a plurality of groups of wire pipes or harnesses in different directions canbe fixed simultaneously.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Bridge safety warning device
The invention discloses a bridge safety warning device. The bridge safety warning device includes a mounting base and a warning device; a groove which is in matching connection with the warning device is formed in a right side wall of the mounting base; handle grooves are arranged in an upper end and a lower end of the groove on the right side wall of the mounting base equally; handles stored in the handle grooves are arranged on an upper end wall and a lower end wall of the warning device; a first slide cavity and a second slide cavity are formed in an upper end and a lower end of the mounting base on the left side of the groove equally; an unlocking slide cavity is formed in the mounting base between the first slide cavity and the second slide cavity; a communication groove passing through the unlocking slide cavity is formed between the left bottom of the first slide cavity and the left top of the second slide cavity; and locking grooves extending downward are formed in right bottoms of the first slide cavity and the second slide cavity. The bridge safety warning device is simple in structure, can save mounting time and effort, and is easy to maintain.
Owner:杜董
Vertical support stress uniform distribution device for building reinforcement engineering
ActiveCN114033212AUniform distribution of support stressGood support and adjustmentBuilding repairsArchitectural engineeringBuilding construction
The invention provides a vertical support stress uniform distribution device for building reinforcement engineering, and relates to the technical field of building construction. The device comprises a lower mounting seat; wherein lower mounting seat is mounted on a base plane through expansion bolts; a supporting body which is connected to the upper end face of the lower mounting base in a fastened mode through an adjustable fastening assembly; a protection assembly which is installed at the top of the supporting body, and the protection assembly is located on the outer side of the stress uniform distribution core block; and an auxiliary supporting assembly which is arranged at the top of the supporting main body. The vertical support stress uniform distribution device can effectively protect a matching surface, guarantees good angle adjusting capacity, can observe and monitor the deflection condition of an upper mounting seat, has good supporting capacity and adjusting capacity, is convenient to use and simple to operate, has higher working stability and practicability, and solves the problems that a traditional supporting device cannot well protect the spherical matching surface, the deflection condition of the support is difficult to effectively observe and monitor, so that the deflection of the support is too large.
Owner:李扬
Method for improving building construction efficiency
ActiveCN108756070AImprove construction efficiencyAchieve clamping and lockingBuilding reinforcementsBuilding material handlingRebarMechanical engineering
The invention belongs to the technical field of engineering construction, and in particular relates to a method for improving the building construction efficiency. A steel connecting sleeve used in the method comprises connecting sleeve bodies, a spring, a locking nut, a locking handle, a clamping module and a screw. Face teeth are arranged in a round area on the stepped surface at one end of eachconnecting sleeve body. The other end of the screw is rotatably connected to one end of the locking handle. A rotating shaft hole in the locking handle is eccentrically disposed with the cylindricalsurface. A first cylindrical hole is formed in the end surface at the other end of the connecting sleeve body. The clamping module is arranged in the first cylindrical hole and used for clamping and locking steel bars inserted into the connecting sleeve bodies. Due to the fact that the face teeth are arranged at one end of each connecting sleeve body, and the rotating shaft hole in the locking handle is eccentrically arranged with the cylindrical surface, the angle between two connecting sleeve bodies can be adjusted. The clamping module is arranged in the first cylindrical hole to clamp and lock the steel bars, and finally fastening connection of the two steel bars can be achieved.
Owner:江西省第十建筑工程有限公司
Watchband connecting structure and intelligent watch
InactiveCN107224043ARealize a tight connectionGuaranteed accuracyBraceletsWrist-watch strapsEngineeringElectrical and Electronics engineering
The invention belongs to the technical field of smart watch structures, and provides a connection structure of a watch strap and a smart watch, including a first connection component disposed on the end of the first watch band and a second connection component disposed on the end of the second watch band, and a clamping piece that can be rotatably connected to the first connecting assembly and can be clamped to the second connecting assembly, the first connecting assembly comprising a first supporting member connected to the first strap, A positioning member extending outward along the first support member and a first suction member connected to the first support member in a limited position, and the second connection component includes a first suction member connected to the second strap. Two supports, a positioning groove provided on the second support and available for the positioning and connection of the positioning member, and a second limiting connection on the second support and available for connection with the first suction member A suction part; this design can solve the problems that the existing strap clip structure is difficult to fasten and disassemble.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD
Quick assembling system for square building and assembling method thereof
ActiveCN111851750AImprove convenienceQuick buildBuilding constructionsTransverse grooveConstruction engineering
The invention discloses a quick assembling system for a square building and an assembling method thereof. The quick assembling system comprises a bottom plate, the top of the bottom plate is providedwith a top plate, the outer sides of the inner ends of the bottom plate and the top plate are rotationally connected with side plates, and the inner ends of the side plates on the same side are rotationally connected. Through cooperation of the bottom plate, the top plate, the side plates and a clamping assembly, when the device is used, the bottom plate and the side plates, the side plates, as well as the side plates and the top plate are rotationally connected. Accordingly, the device can be folded and compressed downwards, convenience of transporting and storing is greatly improved, and moreover, quick setting up can be achieved; slide rods penetrate into the upper side plates and the lower side plates and achieve an effect of connection rods, moreover, the length of the connection rodsis large, the connection rods can bear larger bending force, and breaking of joints between the upper side plates and the lower side plats is avoided; and meanwhile, clamping rods are in clearance fit with transverse grooves and are in clearance fit with through holes, thus, vertical fastening between the side plates can be achieved, the assembling efficiency is greatly improved, the assembling difficulty is reduced, and the assembling effect is better.
Owner:威海市建筑设计院有限公司
Multi-direction fastening assemblies adjustable in direction
InactiveCN105240373ARealize a tight connectionSimplify the installation processScrewsEngineeringMechanical engineering
The invention discloses multi-direction fastening assemblies adjustable in direction and belongs to the technical field of frame structure installation. Single-bar axis-surrounding bolts and double-bar axis-surrounding bolts are designed and combined with standard bolts or standard screws in application to form four sets of multi-direction fastening assemblies adjustable in direction. Through the multi-direction fastening assemblies, most frame structures can be fastened and connected, there is no need to manufacture special connection components, the installation process of the frame structures is simplified, the installation flexibility of the frame structures and the diversity of combination forms of the frame structures are improved, and the standard multi-direction fastening assemblies are provided for achieving building block type construction of the frame structures and fill in the gaps in frame structure installation.
Owner:赵宇伦
Friction disk for grounding device of high-speed train
InactiveCN109301520AReduce vibration amplitudeGuaranteed stabilityVehicle connectorsCoupling contact membersSmall amplitudeWear resistant
The invention relates to a friction disk for a grounding device of a high-speed train, and the friction disk comprises a friction disk body which is connected with a friction body. The surface of thefriction body is provided with a conductive wear-resistant coating layer. The friction plate body is provided with an inner cavity which is used for installing the friction body, and the inner cavityforms a stepped structure, wherein the lower part is provided with an internal thread and is a small cavity, and the upper part forms a big cavity. A side surface of the friction body forms a steppedstructure cooperating with the inner cavity, and the lower part of the side surface of the friction body is provided with an external thread and serves as a small shaft, wherein the upper part of theside surface forms a big shaft. The small shaft and the small cavity cooperate with each other to achieve the connection, and the big shaft and the big cavity cooperate with each other to achieve theconnection. Through the cooperation of the big shaft and the big cavity and the cooperation of the small shaft and the small cavity, the fastening connection between the friction disk body and the friction body is achieved, thereby guaranteeing the stability of the friction disk in an operation process. Moreover, the mode enables the friction body to have a small amplitude in the vibration process, thereby reducing the mechanical wear caused by the vibration, and prolonging the service life of the friction plate.
Owner:扬州丰泽轨道交通科技有限公司
Dry-hanging curtain wall connecting piece
ActiveCN106049724ASimplify the replacement repair processRealize a tight connectionWallsMating connectionKeel
The invention provides a dry-hanging curtain wall connecting piece. The dry-hanging curtain wall connecting piece is characterized in that the connecting piece comprises a back bolt and a bolt lock; the back bolt comprises a clamping part, and the bolt lock comprises a protective frame and an openable clamp matching mechanism located in the protective frame; the clamp matching mechanism comprises an upper lip piece, a lower lip piece and two rotary shafts, the upper lip piece is rotatably connected with the protective frame through one rotary shaft and formed by stacking a plurality of strips, and hook heads connected with the clamping part in a matched mode are arranged at the front ends of part of the strips; and the lower lip piece is rotatably connected with the protective frame through the other rotary shaft and formed by stacking a plurality of strips, and hook heads connected with the clamping part in a matched mode are arranged at the front ends of part of the strips. According to the dry-hanging curtain wall connecting piece, the back bolt is embedded in the back side of a dry-hanging plate and connected with the bolt lock in an inserted mode, so that replacing and repairing procedures of a single plate are greatly simplified; and in addition, compared with a traditional back bolt, the back bolt can be connected with a keel or an anchor bolt in a fastened mode.
Owner:中山市博路德幕墙门窗系统有限公司
Rapid disassembly and assembly clamp for water inlet branch pipe of diesel engine and using method thereof
ActiveCN111604843AEasy to connectEasy to operateWork holdersMetal-working hand toolsDiesel engineMechanical engineering
The invention relates to the field of diesel engine detection, in particular to a rapid disassembly and assembly clamp for a water inlet branch pipe of a diesel engine and a using method thereof. Theclamp comprises a pull rod, a first abutting part and a pull rod hook, the pull rod hook is arranged between the first end and the first abutting part, the pull rod hook is rotationally connected to the pull rod through a rotating shaft, and the pull rod can form a lever structure with the rotating shaft as a fulcrum. According to the rapid disassembly and assembly clamp for the water inlet branchpipe of the diesel engine and the using method thereof, the pull rod hook can hook a protruding part of the bottom wall of a diesel engine body, when the pull rod hook hooks the protruding part of the bottom wall of the diesel engine body, the pull rod hook is firmly connected with the diesel engine body to form the fulcrum, and the pull rod forms the lever structure relative to the fulcrum, so that the connection of the water inlet branch pipe of the diesel engine can be realized in a labor-saving manner by utilizing the lever principle.
Owner:SGIS SONGSHAN CO LTD
Weapon gun and infrared preset lens
The invention discloses an infrared preset lens which comprises a lens body, a locking ring and an eye lens body. The eye lens body is connected with the lens body through a positioning element so asto limit the circumferential rotation of the eye lens body; the locking ring sleeves on the periphery of the eye lens body; and one end of the locking ring is detachably connected to the lens body, and the other end of the locking ring is rotatably arranged on the eye lens body, so that the axial fixation between the eye lens body and the lens body is realized. According to the infrared preset lens provided by the invention, through the cooperation of a fixing element and the locking ring, the locking position during the eye lens installation process can be accurately controlled, so that the problem that the installation position of a square-shaped lens piece during the eye lens installation process is easy to tilt is solved. The invention further a weapon gun comprising the infrared preset lens.
Owner:INFIRAY TECH CO LTD
Novel connecting structure of thin-wall stainless steel pipe and pipe joint
InactiveCN106195475AFasten the connectionImprove sealingJoints with sealing surfacesThin walledFastener
The invention discloses a novel connecting structure of a thin-wall stainless steel pipe and a pipe joint. The pipe diameter of the connecting end of the pipe joint is decreased; a plurality of seal rings and a circular fastener slot are axially and sequentially arranged on an outer wall of the pipe joint from a pipe orifice; each seal ring sleeves on each seal ring slot arranged on the outer wall; an annular fastener with a notch sleeves outside the fastener slot; the end port of the connecting end of the stainless steel pipe is flared to form an annular fastening position; and between the connecting end of the stainless steel pipe and the connecting end of the pipe joint, the seal rings on the outer wall of the connecting end of the pipe joint are in extrusion connection with an inner wall of a smooth surface of the connecting end of the stainless steel pipe, and the fastener of the connecting end of the pipe joint is correspondingly fastened with the annular fastening position of the connecting end of the stainless steel pipe. The connecting structure is simpler in structure, and has better sealability and fastening performance for the connection between the thin-wall stainless steel pipe and the pipe joint so as to achieve an excellent connecting effect.
Owner:庞浩佳
Key testing device used for radio frequency electromagnetic field radiated susceptibility test of key type equipment
PendingCN108508311AGuaranteed accuracyRealize vertical displacement adjustmentMeasuring interference from external sourcesCircuit interrupters testingEquipment under testWorking environment
The invention relates to a key testing device used for a radio frequency electromagnetic field radiated susceptibility test of key type equipment. The key testing device comprises two upright posts, wherein the upright posts are distributed at the two sides of a key of to-be-tested equipment, the lower end of each upright post is connected with the to-be-tested equipment, a clamping slot is formedin the upper end of each upright post, a sliding rod is arranged in each clamping slot, the clamping slots in the two upright posts support the two ends of the sliding rod respectively, a hanging bracket is arranged on the sliding rod, an electromagnetic push rod is arranged on the hanging bracket, the lower end of the electromagnetic push rod is connected with an elastic pressure head, and the elastic pressure head corresponds to a key of the to-be-tested equipment. The key testing device provided by the invention can press the key of the to-be-tested equipment, the key is tested in an anechoic chamber, and whether the key can be normally used under the electromagnetic radiation condition is observed, so that a working environment of the tested equipment is really simulated, and accuracyof a result of the radio frequency electromagnetic field radiated susceptibility test is guaranteed.
Owner:HENAN PROVINCE INST OF METROLOGY
Extending fast-loading rock anchorage device
The invention relates to an extending fast-loading rock anchorage device. The extending fast-loading rock anchorage device is characterized by comprising an anchor rod, a lower nut, an upper wedge-shaped block and a lower wedge-shaped block, central long holes are formed in the center of the upper wedge-shaped block and the center of the lower wedge-shaped block respectively in the longitudinal direction, the upper wedge-shaped block and the lower wedge-shaped block are respectively provided with an inclined face in the longitudinal direction, the inclined face of the upper wedge-shaped block and the inclined face of the lower wedge-shaped block are oppositely arranged and are corresponding sliding planes, the anchor rod penetrates through the central long hole of the upper wedge-shaped block and the central long hole of the lower wedge-shaped block, the anchor rod is of a step shaft structure with a step circular truncated cone, threads are arranged on the lower portion of the step circular truncated cone of the anchor rod, and the anchor rod is sleeved with the upper wedge-shaped block, the lower wedge-shaped block and the lower nut in sequence. The extending fast-loading rock anchorage device has the advantages that due to the fact that a penetrating hole is communicated with the hollow portion of the upper wedge-shaped block and the hollow portion of the lower wedge-shaped block, when the device is pressed by an anchor bolt screw rod end circular truncated cone, the top end of an extending petal is radially expanded, the wedging function on surrounding materials is generated, and when an anchor bolt is completely tightened, the larger the tensile force borne by the anchor rod is, the more tightly anchoring is.
Owner:MILITARY TRANSPORTATION RES INST OF PLA GENERAL LOGISTICS DEPT +1
End cover assembly, gas and liquid separator with end cover assembly and assembly device of end cover assembly
The invention discloses an end cover assembly. The end cover assembly comprises an end cover body and a filtering part which are fixedly connected, wherein the filtering part is provided with a filter screen base and a filter screen, the end cover body is provided with a cover body and a turnup edge which is provided with a locking part for fixing the filtering part, the locking part and the cover body form a fixing interval for clamping and fixing the filtering part, and the locking part is a protrusion or an annular protruding edge which is sunken from the peripheral face of the turnup edge to the interior of the end cover body. Due to the improvement of the connection mode, damage of remaining welding slag to a compressor can be avoided, the quality of a gas and liquid separator is effectively improved, the service life of the gas and liquid separator is effectively prolonged, and production cost is effectively reduced. On the basis, the invention further provides the gas and liquid separator with the end cover assembly and an assembly device of the end cover assembly.
Owner:ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
Prefabricated concrete member quick connecting system
The invention belongs to the technical field of building material accessories, and discloses a prefabricated concrete member quick connecting system. The prefabricated concrete member quick connectingsystem comprises a prefabricated concrete wall panel with a fixed anchor block, a prefabricated concrete wall panel with a fixed box embedded and a connecting bolt, wherein the connecting bolt penetrates through the fixed box and is connected and combined with the fixed anchor block to realize the fastening connection between the prefabricated concrete wall panel with the fixed anchor block and the prefabricated concrete wall panel with the fixed box embedded. The prefabricated concrete member quick connecting system has the technical advantages of simplifying the prefabricated concrete wallpanel assembling steps, reducing installation errors, being high in practicability and the like.
Owner:中欧云建科技发展有限公司
Blast furnace air inlet pipeline mounting method and hydraulic system
ActiveCN110778819AAchieving a sealed connectionRealize a tight connectionFlanged jointsServomotorsHydraulic cylinderCoupling
The invention discloses a blast furnace air inlet pipeline mounting method and a hydraulic system. The blast furnace air inlet pipeline mounting method comprises the following steps: carrying out buttjoint on an air hose flange and a descending pipe flange; enabling a piston rod in a stretching state of a hydraulic cylinder to penetrate through the air hose flange and the descending pipe flange,and connecting a locking piece on the piston rod to prevent the piston rod from be removed out of a threaded hole; controlling the piston rod to shrink to enable the air hose flange and the descendingflange to be in tight coupling and keep the tight coupling state under extrusion of the locking piece and a cylinder block; except the threaded hole allowing the piston rod to penetrate through, enabling bolts to penetrate through other threaded holes of the air hose flange and the descending pipe flange, and enabling the bolts to pre-tighten the air hose flange and the descending pipe flange; controlling the piston rod to stretch out to remove extrusion of the hydraulic cylinder to the air hose flange and the descending pipe flange and enabling the air hose flange and the descending pipe flange to keep the tight coupling state under the connection of the bolts. According to the blast furnace air inlet pipeline mounting method, the hydraulic cylinder compresses two butt joint flanges, sothat both labor and time are saved during the mounting process, and the overhauling efficiency is improved.
Owner:PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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