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447results about How to "Guaranteed support strength" patented technology
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3D printing machine and 3D printing method
ActiveCN105172143AImprove printing efficiencyAchieve fixation3D object support structuresManufacturing data aquisition/processingHost materialEngineering
The invention discloses a 3D printing machine which comprises a printing chamber. A printing assembly and a bearing platform are arranged in the printing chamber. The printing assembly is arranged above the bearing platform. The printing assembly comprises a printing support, a printing head assembly and a curing lamp assembly, wherein the printing head assembly and the curing lamp assembly are connected to the printing support. The printing support moves in the printing direction. In the printing direction, the printing head assembly is located in front of the curing lamp assembly. The printing head assembly comprises a main printing head body of a printing model body and an auxiliary printing head body of a printing supporting material. The model main material is photosensitive resin. The printing temperature in the printing chamber is lower than the solidification temperature of the supporting material. The supporting material is solidified at the printing temperature. The invention further discloses a 3D printing method. By means of the 3D printing machine and the 3D printing method, the supporting material is removed easily.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD +1
Ventilation steel channel, manufacturing method of ventilation steel channel, ventilation structure and motor
ActiveCN104578484AGuaranteed support strengthIncreased turbulenceMagnetic circuit rotating partsMagnetic circuit stationary partsUltimate tensile strengthMaterials science
Owner:BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
Suspended type air track train bogie
InactiveCN107010082ANovel structureReduce installation interfaceElectric motor propulsion transmissionBogie-underframe connectionsSpan bolsterAutomotive engineering
The invention relates to a bogie for a suspended aerial rail train, which comprises a frame, a traveling wheel, a motor for driving the traveling wheel, a bolster and a center pin. For fixed connection, a suspension mechanism is arranged below the center pin, and the suspension mechanism is used for fixed connection with the car body. The bogie of the present invention arranges the bolster above the middle part of the bogie through the elastic element, and the car body is connected with the bolster through the suspension mechanism and the central pin, so that the vehicle is hoisted under the bogie. The bogie has a novel structure, fewer installation interfaces, and reasonable force, which improves the running stability and riding comfort of the vehicle.
Owner:CRRC NANJING PUZHEN CO LTD
tree support device
The invention relates to a gardening tool, in particular to a tree support device for protecting trees. The tree support device comprises an enclosing hoop which revolves around a tree trunk and a support rod connected with the enclosing hoop, wherein a flexible woven belt of the enclosing hoop is provided with a lap joint piece; the lap joint piece has a rigid structure, and the support rod is fixed to the periphery of the enclosing hoop by a fastening screw; the flexible woven belt is arranged around the periphery of the tree trunk, and is connected by a belt fastener; a belt tightening device is arranged on the belt fastener additionally; a scroll of the belt tightening device entering in the belt fastener is buckled with the belt fastener through a slot arranged on the belt fastener; one end of the scroll enters a housing of the belt tightening device; a group of turbine and worm are arranged in the housing of the belt tightening device; the turbine is arranged on the scroll of the housing; the worm and the turbine are meshed; one end of the worm crosses the housing, and the out end, of a hexagonal shape, is matched with a rotary handle. The tree support device has a simple structure and good support effect, the flexible woven belt which revolves around a tree walk can be tightened or released easily by the belt tightening device, and the support device can be installed quickly, simply and conveniently on site, so time and labor are saved.
Owner:HANGZHOU ZHONGYI ECOLOGICAL ENVIRONMENTAL ENG CO LTD
Method for automatically constructing support of confined concrete arch center for underground tunnel
ActiveCN106014453AGuaranteed support strengthImprove mechanical propertiesUnderground chambersTunnel liningConvex structureUnderground tunnel
The invention discloses a method for automatically constructing support of a confined concrete arch center for an underground tunnel. The confined concrete arch center at least comprises two sections, adjacent sections are hinged at joints, the contact surfaces of joints of two adjacent sections are structures matched with each other, the structure of the contact surface of one section is a convex structure, while the structure of the contact surface of the other section is a concave structure matched with the convex structure, a structure is arranged between the convex structure and the concave structure and is used for engaging and fixing the two structures when the two structures are in a matched state, and each section is of a composite structure of which square steel or round steel is filled with concrete. The arch center adopting a foldable mode can be automatically unfolded in the constructing process, does not need manual field splicing, and is safe and efficient; and the concave structure and the convex structure which are matched with each other are arranged on contact surfaces of the joints, and the engaging structures are arranged, so that the confined concrete arch center is automatically engaged when being extended, construction is facilitated, and the support strength of the confined concrete arch center is guaranteed.
Owner:SHANDONG UNIV
Obligate cavity channel gob-side entry retaining wall filling method
ActiveCN103089299APlay a supporting roleSupport does not affectMaterial fill-upUltimate tensile strengthRetaining wall
An obligate cavity channel gob-side entry retaining wall filling method is characterized in that a cylinder hole is obligated on a formwork, a thin-wall steel cylinder penetrates through the formwork, a lane is located on the high position, a goaf area us located on the low position, a filling wall with a cavity is formed after filling, wall using materials are reduced, and wall strength is not influenced. An open-close door is installed at the hole opening, when the lane deforms, cannot normally use and needs to conduct dinting, a large quantity of gangue produced after lane dinting can be thrown to the inside by opening the door, and the lane is distributed in an air return along groove. Due to existence of a coal bed pitch, inbreak gangue surges up the goaf area of the transportation along grooves under the effect of gravity, in addition, side direction breaking is carried out on the top plate during caving, a lateral breaking angle is formed, a space at a button angle of the filling wall enables the inbreak gangue to be unable to achieving a filling area, a great quantity of spaces are left on the filling wall side, throwing gangue directly enters the goaf area under the effect of gravity, and deposit spaces are provided for processing undercover gangue.
Owner:CHINA UNIV OF MINING & TECH
Building pillar removing device and method
InactiveCN106121272AGuaranteed structural strengthLittle impact on structural strengthBuilding repairsBuilding material handlingHydraulic cylinderPre stress
The invention discloses a building pillar removing device and method. The building pillar removing device and method aim to overcome the defects that after existing house building pillars are removed, the influence on the structural strength of a house is large, the supporting strength at the pillar removing position of the house is lowered, and then the service life of the house is shortened. Before the pillars are removed, surrounding pillars and a cross beam or a floor need to be subjected to prestress concrete reinforcement, prestress steel strands are installed in prestress concrete, and each prestress steel strand penetrates through self-locking sleeves on self-locking plates and then the self-locking sleeves are backwards compressed; then jacking hydraulic cylinders are installed on the self-locking plates, and each prestress steel strand penetrates through locking sleeves on jacking plates and the locking sleeves are backwards compressed, so that the prestress steel strand is tightly clamped in the locking sleeves; and the jacking hydraulic cylinders at the two ends of the steel strands are started synchronously and push jacking pistons to outwards tension the prestress steel strands, and when it is detected that pressure borne by the pillars to be removed is within the safety removing range, the pillars to be removed are cut off and removed.
Owner:GEOTECHN TECH
Method for reinforcing return channel
ActiveCN101806223AGuaranteed support strengthImprove support strengthSealing/packingAnchoring boltsEconomic benefitsMesh reinforcement
The invention relates to a method for reinforcing a return channel. The method comprises the following steps: (1) supporting a roof by utilizing anchor stocks, anchor cables, mesh reinforcements, steel beams, single struts and double-row cribworks jointly; and (2) and injecting Marithan into the roof to solidify the roof. By utilizing the anchor stock-anchor cable-mesh reinforcement-steel beam-single strut-double row cribwork joint support mode, the invention reasonably optimizes the support parameters, thereby ensuring the support strength of the return channel; and by using the Marithan product, the invention effectively enhances the support strength of the coal body, thereby achieving the goal of reinforcing the treated region. The method of the invention greatly ensures the safety andenhances the economic benefit. In addition, the invention has the advantages of simple process, convenient operation and low requirements for on-site construction, and can quickly and efficiently reinforce the roof and effectively support the roof.
Owner:CHINA SHENHUA ENERGY CO LTD
Corrugated bracket of fan
ActiveCN108180154ABeneficial technical effectImprove static pressure efficiencyPump componentsPump installationsFront edgeWave crest
The invention discloses a corrugated bracket of a fan. The corrugated bracket of the fan comprises an air guide ring, a plurality of flow guide blades and a bracket hub, wherein a motor is mounted atone side of the bracket hub; fan blades are connected to the motor through a rotating shaft and are mounted at the other side of the bracket hub. The corrugated bracket of the fan further comprises anopening expansion structure which is arranged at the end part of the air guide ring; the flow guide blades are arranged between the opening expansion structure and the bracket hub; the line of the inner wall of the opening expansion structure is inclined; corrugated noise reducing structures, comprising at least one group of wave crests and wave troughs, are arranged at the rear edges of the flowguide blades; each group of wave crests and wave troughs is arranged in the direction from the rear edges of the flow guide blades to the front edges of the flow guide blades. With the adoption of the corrugated bracket of the fan, the motor can be supported during being mounted, and moreover, the flow guide blades are corrugated, so that air output by the fan can be rectified, and as a result, the fan eddy loss is decreased, the fan efficiency is improved, and the broadband eddy noise is reduced.
Owner:FANS TECH ELECTRIC CO LTD
Light guiding module and projection device provided with light guiding module
ActiveCN103091959AReduce the difficulty of adjustmentReduce frictionMechanical apparatusProjectorsLight pipeOptoelectronics
The invention provides a light guiding module and a projection device provided with the light guiding module. The light guiding module comprises a light pipe module and a hook, wherein the light pipe module comprises a light pipe and a protection shell, the light pipe is used for guiding light inside the projection device, the protection shell is sleeved outside the light pipe, the hook is arranged on the protection shell and is provided with a first end and a second end, the first end is fixed on the protection shell, and the first end is wider than the second end. When the light pipe module is placed on a platform provided with a first groove, the second end of the hook is placed in the first groove in a movable mode. Due to the fact that the hook is designed to be with a gradually changing width, purposes of small friction force and low light pipe module adjusting difficulty are achieved.
Owner:QISDA OPTRONICS (SUZHOU) CO LTD +1
Sofa seat frame
InactiveCN110101245AGuaranteed support strengthIncrease productivitySpring mattressesEngineeringVertical path
The invention discloses a sofa seat frame, comprising a frame and several elastic members disposed in the frame. The frame comprises two symmetrically-disposed longitudinal beams and two crossbeams for connecting the two longitudinal beams. The cross section of the longitudinal beams is L-shaped and includes a vertical plate and a horizontal plate. The vertical plate and the horizontal plate forma placement cavity, and both ends of the horizontal plate in the length direction are bent towards the inner side of the placement cavity to form a folded edge. The two crossbeams are symmetrically disposed on folded edges at both ends of the longitudinal beams and located in the placement cavity. The sofa seat frame also comprises at least a supported beam, which is connected with the two crossbeams. In comparison with existing sofa seat frame structures, the invention has the following advantages: under the precondition of guaranteeing support strength of the seat frame, the production efficiency of components is improved, manufacturing materials are reduced, production cost is decreased, and complicated assembly process and required parts are simplified; and automation is easy to realize.
Owner:MAN WAH FURNITURE MFG HUIZHOU
Flexible supporting device and flexible supporting pieces of photoetching machine
ActiveCN103982587AVibration isolationReduce rigidityNon-rotating vibration suppressionPhotomechanical exposure apparatusStress concentrationInverted t
The invention belongs to a flexible supporting device and flexible supporting pieces of a photoetching machine. Each flexible supporting piece comprises a top block, a flexible connecting mechanism and bottom blocks, wherein the top block is connected with an objective lens; the bottom blocks are connected with a main base plate; the flexible connecting mechanism comprises two flexible connecting pieces; the flexible connecting pieces are arranged between the top block and the bottom blocks to form a herringbone or inverted-T-shaped flexible supporting piece; each flexible connecting piece is a frame structure with an internal beam or a beam structure with a flexible hinge. The flexible supporting device comprises a first flexible supporting piece, a second flexible supporting piece and a third flexible supporting piece, wherein the three flexible supporting pieces are distributed at three intersection points of an isosceles triangle; the objective lens is arranged in the center of the triangle. According to the technical scheme provided by the invention, the overall modal of an assembly of the objective lens and the main base plate is smaller than 30Hz by virtue of the adopted flexible supporting pieces and the positional layout of the flexible supporting pieces. Each flexible supporting piece is ultralow in rigidity and sufficient in supporting strength, and meanwhile, the stress concentration is avoided.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
Construction method for advance grouting and supporting for tunnel partial collapse
ActiveCN110821513APrevent collapseAvoid destructionUnderground chambersTunnel liningArchitectural engineeringSteel frame
The invention discloses a construction method for advance grouting and supporting for tunnel partial collapse, and relates to the technical field of tunnel construction. Based on back pressure backfilling, sleeper stacks are used for further supporting the part which have the quickest and largest deformation and is the most unstable in the initial supporting, so that the fact that the entire steelarch wholly collapses from the arch part and causes the currently stable steel frame on the left side of the line to damage together is avoided, and the collapse range and intensity are controlled; the grouting reinforcement is carried out to the deformed section surrounding rock, so that the aims that the deformation is controlled and the safe replacement of the deformed limit invasion steel frame is guaranteed are achieved, and better supporting effect is realized; a butterfly arch is used to better conform to the practical situation of the site surrounding rock, so that the supporting forthe unstable surrounding rock at the single side deformation section is strengthened, and the fact that the supporting intensity meets the site requirements is guaranteed; the advance supporting measures are adopted to improve the front surrounding rock integrity and self stabilization capability, and the construction safety is guaranteed; different from the traditional manner of total-ring arch replacement, the cost is low, the adaptability is high and the generalizability is high.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD
Mine grouting anchor cable supporting method
ActiveCN106321124AGuaranteed support strengthTension and pretension in timeAnchoring boltsHigh stressDrill hole
A mine grouting anchor cable supporting method comprises the steps of manufacturing a grouting anchor cable tie, wherein the grouting anchor cable tie is composed of multiple anchor cable bodies, a conical grouting stopping plug, a tray, a lock, an end anchor grouting stopping plug, an anchor cable fixing frame, a tightening ring and the like. An anchor cable body comprises an end anchor grouting anchor cable body, a full-anchor grouting anchor cable body and an exhaust grouting anchor cable body, and the three grouting anchor cable bodies are combined to replace a common anchor cable body; 2, installing and supporting the grouting anchor cable tie, wherein the end anchor grouting stopping plug is sleeved with the end anchor section of the anchor cable tie, the grouting anchor cable tie is fed into a drilled hole, a barb hook hooks the wall of the hole, and the conical grouting stopping plug, the tray and the lock are sequentially installed; grouting of the end anchor section is performed by means of the end anchor grouting cable body, and air is exhausted through the full-anchor grouting anchor cable body; after grouting of the end anchor section is solidified, the lock is used for tensioning and pre-tightening the anchor cable tie; the full-anchor grouting anchor cable body is used for performing grouting on the full anchor section, and the exhaust grouting anchor cable body is used for exhausting air. The method is applicable to ultra-soft cracking and deep high stress roadway supporting, and can achieve ultra-long deep strong anchoring. The cable body is provided with a core tube so that end anchoring, full-anchoring grouting and air exhausting can be achieved, and construction is greatly simplified.
Owner:中国平煤神马控股集团有限公司 +1
Large-span bulk material conveying system
ActiveCN110642152ALow costRealize dynamic counterweightConveyorsTravelling cranesTowerControl theory
The invention discloses a large-span bulk material conveying system which comprises a folding arm conveyor and a cross-bank lifting type feeding conveying device. The folding arm conveyor is mainly composed of a bottom frame arranged on the ground of a stockyard, a tower body arranged on the bottom frame, a balance arm, a conveying arm, a tower top and other main parts, wherein the balance arm, the conveying arm and the tower top are arranged on the tower body. A portal frame I, a portal frame II and a discharging trolley are arranged on the conveying arm, a rotating device and a hopper are arranged on the tower body, and a balancing trolley is arranged on the balancing arm. The folding arm conveyor can realize horizontal rotation, a steel wire rope can be controlled by a winch to fold andretract the conveying arm, collision with other equipment or buildings in the rotation process can be prevented, and the risk of toppling of the conveyor under the action of wind force can be effectively reduced. The large-span bulk material conveying system has the characteristics of simple structure, low cost, ground space saving, automatic control and the like.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Rockery construction method
ActiveCN107554178AGuaranteed support strengthExtended service lifeSpecial ornamental structuresOxygenRebar
The invention relates to the field of constructional engineering, and discloses a rockery construction method. The rockery construction method comprises the following steps of 1, foundation punning and reinforcing, wherein timber piles with the side walls coated with hemp threads are fixed to a foundation according to a contour line of the bottom surface of a rockery body, and a concrete layer ispoured on the foundation through concrete to enable the timber piles to be coated; 2, rockery skeleton making, wherein supporting wooden pillars are installed on the concrete layer according to the scale height of rockery peaks, the supporting wooden pillars are coated with hemp threads, and meanwhile, a modeling rebar frame is installed on the concrete layer and coated with the hemp threads, anda covering steel plate mesh is installed on the modeling rebar frame; 3, shaping, wherein the rockery body is poured on the portion, located in the covering steel plate mesh, of the concrete layer through concrete; and 4, batched plastic coloring. The rockery construction method has the following advantages and beneficial effects that the timber piles, the supporting wooden pillars and rebars areprevented from reacting with moisture and oxygen which enter a rockery through concrete gaps by means of coating of the hemp threads, the supporting strength of the timber piles and the rebars is guaranteed, and the service life of the rockery is prolonged.
Owner:绍兴壹佳建设有限公司
Fixation system for hand trauma operation
ActiveCN105640732AImprove protectionAvoid obstructionEnemata/irrigatorsDiagnosticsEngineeringWater holding
The invention discloses a fixation system for a hand trauma operation. The fixation system comprises a fixing plate and a water holding plate mounted below the fixing plate, wherein clip positioning holes are equidistantly formed in the periphery of the fixing plate; an arm fixing bandage is detachably connected to an arm fixing part; a pull hook assembly is detachably connected to the fixing plate and comprises a clip, a pull hook supporting plate fixedly connected to the clip, and a pull hook detachably mounted on the pull hook supporting plate; a finger fixing assembly is detachably connected to the fixing plate and comprises a clip, a locking part fixedly connected to one clip plate of the clip, and a finger fixing part connected to the locking part; and a finger supporting assembly is detachably connected to a through hole of the fixing plate and comprises a finger supporting plate and a palm supporting assembly. A platform is convenient to use and the labor intensity of medical personnel is reduced.
Owner:LISHUI PEOPLES HOSPITAL
Surrounding rock reinforcement method for junction tunnel section in upper-soft lower-hard stratum constructed adopting shield method and mining method
ActiveCN110878696AThe method steps are simpleReasonable designUnderground chambersTunnel liningStructural engineeringGround settlement
The invention discloses a surrounding rock reinforcement method for a junction tunnel section in an upper-soft lower-hard stratum constructed adopting a shield method and a mining method. The method comprises the steps that 1, tunnel face grouting reinforcement is carried out, specifically, grouting reinforcement is carried out on stratum in front of an excavation face of an upper tunnel body by adopting grouting pipes; 2, junction surface grouting reinforcement is carried out, specifically, grouting reinforcement is carried out on the reinforced stratum by adopting sleeve valve pipes; 3, tunnel arch part advanced support is carried out, specifically, advanced support is carried out on an arch part of the junction tunnel section; 4, grouting pipe removal is carried out; and 5, tunnel faceplugging is carried out, specifically, a tunnel face is plugged through concrete backfilling, and a tunnel face plugging structure is obtained. The method is reasonable in design, simple and convenient to construct and good in use effect, and surrounding rock of the junction tunnel section is effectively reinforced by the method of combining the surface grouting reinforcement with the in-tunnel reinforcement so that the mechanical property of the surrounding rock can be effectively improved; and the tunnel face of the junction tunnel section is reliably plugged before and after reinforcement so that tunnel safety construction can be effectively guaranteed, and ground settlement caused by excavation can be effectively reduced.
Owner:THE FOURTH ENG CO LTD OF CHINA RAILWAYNO 20 BUREAU GRP
Auxiliary support structure and application method thereof for laser selective forming of suspended plane
ActiveCN109332692AReduce volumeShorten forming timeAdditive manufacturing apparatusIncreasing energy efficiencyEngineeringAdditive layer manufacturing
The invention discloses an auxiliary support structure and an application method thereof for laser selective forming of a suspended plane and belongs to the technical field of additive manufacturing.The auxiliary support structure comprises at least one back-up block. A first supporting plane, a second supporting plane and a suspending plane are arranged on the back-up block. The first supportingplane is used for connecting a suspending plane of a product and supporting the suspending plane. The second supporting plane is used for connecting an inner surface of the product. The plane of thesuspending plane is crossing with the first supporting plane and the second supporting plane. Due to the suspending plane, the volume of the support structure can reduce more than 40%, the forming time of the auxiliary support structure is reduced, the volume of the row material is reduced. The cost of production is saved. Meanwhile, the probability of a partial disintegrate and collapse of the auxiliary support structure for laser selective forming of suspended surface in forming process are significantly reduced. The probability of wrapping and deforming is also significantly reduced. The qualified rate is improved.
Owner:CAPITAL AEROSPACE MACHINERY +1
Connecting member and platform thereof
InactiveCN101503895AGuaranteed support strengthSave on installation costsRefuge islandsBuilding constructionsEngineeringGasket
Owner:北京泊森达工贸有限责任公司 +1
Integrated construction method of cast-in-place box beam inclined web formwork
InactiveCN109537459AQuick installationSimple construction methodBridge erection/assemblyEngineeringUltimate tensile strength
Owner:THE SECOND CONSTR OF CTCE GROUP +1
Full-automatic moving type field sampler supporting platform
ActiveCN105202328AExpand the scope of monitoringGuaranteed support strengthWithdrawing sample devicesStands/trestlesLaser rangefinderEngineering
The invention discloses a full-automatic moving type field sampler supporting platform. The full-automatic moving type field sampler supporting platform comprises a positioning measuring platform and a moving base, wherein the positioning measuring platform is detachably mounted at the upper part of the moving base. By carrying out field combination and adjustment, the full-automatic moving type field sampler supporting platform disclosed by the invention can expand a range of measured height to be 0.07m-2m, and the measured height can be automatically adjusted by controlling a motor through a remote controller; a laser distance measuring instrument can be used for automatically and accurately measuring the measured height; and meanwhile, the full-automatic moving type field sampler supporting platform has high supporting intensity and light weight, is convenient to move and carry, is convenient to operate and is easy to popularize and apply.
Owner:苏交科集团(江苏)安全科学研究院有限公司
Convenient-to-move 3D holographic projection equipment for cultural transmission, exhibition and display
ActiveCN112133231AEasy to storeEasy to installNon-rotating vibration suppressionProjectorsMechanical engineeringElectrical and Electronics engineering
The invention discloses a convenient-to-move 3D holographic projection equipment for cultural transmission, exhibition and display. The 3D holographic projection equipment comprises a moving frame, astorage box is fixedly connected to the top of the moving frame, a display rack is arranged at the top of the storage box, guide assemblies are arranged at the four corners of the bottom of the display rack, an adjusting screw rod is arranged in the center of the bottom of the display rack, a conversion assembly is arranged in the display rack, electric push rods are fixedly connected to the fourcorners of the top of the display rack, and a mounting base plate is fixedly connected among the output ends of the four electric push rods. Two pressing bolts are adjusted through the conversion assembly to enable an adjusting block to horizontally ascend and descend, and conversion between the cleaning adjusting state and the storage state is achieved. Through the cooperation of a mechanical structure and the electric push rods, storage and installation of the device are facilitated, and use is convenient. In the storage and installation process, an upper cleaning assembly and a lower cleaning assembly can conveniently clean a transparent film plate, and work is more efficient while the display imaging effect is guaranteed.
Owner:安徽知本文化科技有限公司
Height-adjustable road manhole
InactiveCN101368392AUniform load bearingAvoid frictionArtificial islandsUnderwater structuresEngineeringWellhead
Owner:彭琦
Vehicle body structure
InactiveCN102887174AGuaranteed support strengthReduce weightSuperstructure subunitsEngineeringGravity center
An object of the invention is to provide a vehicle body structure provided with a reduced weight while maintaining the support strength. According to the invention, the vehicle body structure (100) supports a steering suspension unit containing a steering shaft (126), and comprises a front steering support member (110) which is extended in a width direction of the vehicle and two ends (110a, 110b) of which are fixed to front wall side plates (106a, 106b); and a rear steering support member (112) which is arranged at behind the front steering support member and extended substantially parallel to the front steering support member, wherein two ends of the rear steering support member are connected to the front steering support member via intermediate supports (114a, 114b), not reaching the front wall side plates, and wherein from a side view of the vehicle body, the gravity center of the rear steering support member coincides with that of the front steering support member.
Owner:SUZUKI MOTOR CORP
Waste mercury recovery and purification device and use method thereof
ActiveCN105586492AIncrease usageReduce generationProcess efficiency improvementOrganic solventPurification methods
The invention discloses a waste mercury recovery and purification device and a use method thereof. The waste mercury recovery and purification device comprises a control mechanism, a vibration sieving mechanism and a filtering and solution storage mechanism. According to the invention, waste mercury solution can be purified through combination and adjustment, thus generation of toxic wastes is reduced, the inventory rate of hazardous wastes is decreased, the cost of experimental materials is reduced, and the usage rate of mercury is increased; the traditional purification method is broken through, and an organic solvent and high-temperature operation or low-temperature operation are not required, thus the purification method is expanded; high-strength polytetrafluoroethylene plastic is used, thus the support strength is ensured, and moreover, the high-strength polytetrafluoroethylene plastic is corrosion-resistant, free from reacting with mercury, light in weight, and convenient to move and carry; and in the invention, a physical sieving method is utilized, and has the advantages of being high in safety, high in purification effect, simple in equipment and method, low in cost, convenient to move, convenient to operate, easy to popularize and use, and the like compared with the existing purification technologies of vacuum distillation, acid-base washing, and the like.
Owner:苏交科集团(江苏)安全科学研究院有限公司
Fixture and clamp applying same
InactiveCN101204689AGuaranteed support strengthSmall surface areaLiquid surface applicatorsCoatingsBiomedical engineering
Owner:SHENZHEN FUTAIHONG PRECISION IND CO LTD
Loudspeaker box
InactiveCN107820179AImprove acoustic performanceIncreasing the thicknessElectrical transducersLoudspeakersEngineeringSound production
The invention provides a loudspeaker box, comprising a lower cover; an upper cover, wherein a storage space is enclosed by the lower cover and the upper cover; a sound production unit stored in the storage space; a sound conduction channel formed in the storage space; an annular supporting wall which stretches along a direction from the upper cover to the lower cover and is used for supporting thesound production unit; and a reinforcement sheet. The side of the supporting wall resisting against the sound conduction channel is equipped with a through hole penetrating the supporting wall. The sound production unit is supported by the supporting wall. A front sound cavity is enclosed by the sound production unit and the supporting wall. The front sound cavity is communicated with the sound conduction channel through the through hole. The front sound cavity and the outside world are communicated through the sound conduction channel. The reinforcement sheet is an annular structure and is fixedly supported by the supporting wall at the side close to the lower cover. The sound production unit resists against the reinforcement sheet to form seal. Compared with the prior art, the loudspeaker box provided by the invention has good waterproofness and excellent acoustic performance.
Owner:AAC TECH PTE LTD
Shallow reinforcement and deep injection supporting method for rapid excavation of broken roof large-section roadways
InactiveCN110566226ARealize grouting reinforcement workRealize safe excavation construction workUnderground chambersTunnel liningInjected materialHigh pressure
The invention discloses a shallow reinforcement and deep injection supporting method for rapid excavation of broken roof large-section roadways. The shallow reinforcement and deep injection supportingmethod comprises the following steps: (1) a shallow part glue-injecting reinforcing process is carried out, specifically, glue-injecting operation of shallow part drill holes is conducted on the broken roofs in the roadways, the multiple shallow part drill holes subjected to glue-injecting operation form shallow part glue-injected areas of the broken roofs in the roadways, and after grace glue-injecting materials in the shallow part glue-injected areas are solidified, shallow part reinforcing is conducted on the broken roofs; and (2) a deep part anchorage and injection integrated constructionprocess is carried out, specifically, after the grace glue-injecting materials in the shallow part glue-injected areas are completely solidified, high-pressure grouting operation of left anchor rod drill holes and right anchor rod drill holes is conducted on left roadway sides and right roadway sides in the roadways, and then high-pressure grouting operation of top anchor rod drill holes and anchor cable drill holes is conducted on the broken roofs in the roadways successively. The excavated broken roof large-section coal roadways and rock roadways can be effectively supported in time, the effect of supporting operation and the supporting strength are improved.
Owner:HENAN POLYTECHNIC UNIV
Construction method of lane filling retained roadway
InactiveCN104895604AFast construction methodSimple construction methodMaterial fill-upEngineeringCushion
The invention discloses a construction method of a lane filling retained roadway and belongs to the technical field of coal mining construction processes. The construction method of the lane filling retained roadway can modify a transportation roadway of a former working face with low construction cost rapidly and easily and reserve the transportation roadway of the former working face as an air return roadway of a next working face. The construction method comprises the following steps that waste mine materials exhausted from a mine are manufactured into concrete block materials, then cleaning and foundation processing are carried out on a roadway bottom board lagging 1-2 m behind an outlet below the working face according to the coal mining progress and the mining step pitch, a filling body not thinner than 50 cm is laid in a gradual extending mode in the mining direction, a pressure bearing bottom clearance is preserved between the filling body and a roadway roof, then the preserved pressure bearing bottom clearance is filled with elastic cushion materials, the lane filling retained roadway work of one step pitch is finished after the pressure bearing bottom clearance is sealed, and the steps a-d are carried out repeatedly according to the mining step pitch until the whole lane filling retained roadway work is finished.
Owner:四川川煤华荣能源有限责任公司小宝鼎煤矿
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