247results about How to "Realize connection fixation" patented technology

A full-automatic installation device for building outer wall stones comprises a walking device (1) and is characterized in that an adjustable platform (2) is installed on the upper surface of the walking device (1) through horizontal adjusters (13), a lifting device (4) is arranged on one side of the upper surface of the adjustable platform (2), a lifting platform (3) is installed on the lifting device (4), and a positioning panel turning mechanism (5) is arranged on the lifting platform (3). One or more mechanical arms (8) are installed on one side, close to the panel turning mechanism (5), of the lifting platform (3), the problem that in the traditional process that the stones or ceramic tile panels are constructed on a wall space, an automatic device can not be adopted for installation and construction is effectively solved, the stones or the ceramic tile panels can be fully automatically installed for a building outer wall in the whole process, installation efficiency and precision are high, construction safety is good, and the full-automatic installation device has incomparable superiority compared with traditional manual installation and has good using prospects in the future.

The invention discloses an ejecting clamping type connecting piece and a connecting pile. The ejecting clamping type connecting piece comprises a large nut sleeve, a small nut sleeve, a connecting piece and an insertion rod. The large nut sleeve is connected with the connecting piece in a threaded mode. A plurality of bent ejecting sheets are arranged on the side, contained in the large nut sleeve, of the connecting piece in an annular-array mode, and the included angles between the bent ejecting sheets and the inner side wall of the large nut sleeve are larger than 0 degree. One side of the insertion rod is connected with the small nut sleeve in a threaded mode, an annular groove is formed in the outer circumference face of the other side of the insertion rod, the groove face of the side, far away from the small nut sleeve, of the annular groove is set to be a stop face which is used for limiting the bent ejecting sheets connected to the annular groove in a clamped mode. According to the ejecting clamping type connecting piece and the connecting pile, due to the structural arrangement of the connecting piece, an upper connecting pile body and a lower connecting pile body are fixedly connected, and the technical problem of shaking of the connection between the upper connecting pile body and the lower connecting pile body which are fixedly connected is solved.

The invention discloses a fixed-length cutting device for a stainless steel tube. The fixed-length cutting device for a stainless steel tube comprises a cutting platform and a cutting head group, andfurther comprises a length determining assembly and a clamping assembly; the left side end of the cutting platform is provided with an opening groove, a cutting panel is arranged in the opening groove, and a material collecting box is arranged under the cutting panel; and the length determining assembly comprises a fixed side plate, positioning screws and a positioning pressing plate, the fixed side plate is located over the left end of the opening groove and fixedly connected with the top face of the cutting platform, the positioning screws are symmetrically arranged on the front side and theback side of the fixed side plate, and the two ends of the positioning pressing plates are arranged on the two positioning screws in a sleeving mode separately. According to the fixed-length cuttingdevice for the stainless steel tube, the structure is simple, the practicability is high, operation is easy, use is convenient, not only can the cutting rate and the cutting precision of the stainlesssteel tube be improved, but also the cutting length standard can be guaranteed every time only through one time of cutting length measurement, the manual labor intensity is effectively reduced, the error rate brought by each time of manual measurement is decreased, and resources and the cost are saved.

The invention discloses an ejecting clamping type connecting piece and a connecting pile. The ejecting clamping type connecting piece comprises a large nut sleeve, a small nut sleeve, a connecting piece and an insertion rod. The large nut sleeve is connected with the connecting piece in a threaded mode. A plurality of bent ejecting sheets are arranged on the side, contained in the large nut sleeve, of the connecting piece in an annular-array mode, and the included angles between the bent ejecting sheets and the inner side wall of the large nut sleeve are larger than 0 degree. One side of the insertion rod is connected with the small nut sleeve in a threaded mode, an annular groove is formed in the outer circumference face of the other side of the insertion rod, the groove face of the side, far away from the small nut sleeve, of the annular groove is set to be a stop face which is used for limiting the bent ejecting sheets connected to the annular groove in a clamped mode. According to the ejecting clamping type connecting piece and the connecting pile, due to the structural arrangement of the connecting piece, an upper connecting pile body and a lower connecting pile body are fixedly connected, and the technical problem of shaking of the connection between the upper connecting pile body and the lower connecting pile body which are fixedly connected is solved.

The invention belongs to the technical field of wire clamps, particularly relates to a parallel groove wire clamp, and aiming at solving the problem that clamping is unstable due to the fact that thedimensions of the majority of the existing parallel groove wire clamps are fixed and cannot be adapted to stranded wires of different specifications. A scheme is proposed as follows: the parallel groove wire clamp comprises a fixed base, wherein a connecting groove is formed in the top of the fixed base; two lower clamping bodies are arranged on the inner wall of the bottom of the connecting groove; two inserting grooves are formed in the top of the fixed base; two inserting rods are movably installed in the two inserting grooves; the top ends of the two inserting rods are connected with the same pressing plate in a sliding mode; two bearing pedestals are fixedly arranged at the top of the pressing plate; and the two bearing pedestals are rotationally provided with the same threaded rod. The parallel groove wire clamp can be well adapted to the stranded wires of different specifications for use, so that strong adaptability is achieved, the extrusion and buffering can be carried out onthe extrusion firstly, and the stranded wires can be protected conveniently; and meanwhile, disassembly is convenient, so that the development of overhaul and maintenance is facilitated.

The invention relates to the field of construction engineering structural technologies and construction, in particular to a removal-free reinforced concrete column construction device. The formwork removal-free reinforced concrete column construction device comprises a column steel reinforcement cage. The formwork removal-free reinforced concrete column construction device is characterized in that the outer side of the steel reinforcement cage is provided with cement fiber plates which are connected with the sealing steel reinforcement cage surface, the inner surface of each cement fiber plate is provided with rectangular bulge blocks which are distributed in a quincuncial mode, outer side connecting angels of every two connected cement fiber plates are provided with angle part angle iron in the vertical direction at intervals, and connecting parts are arranged between the every two adjacent angle part angle iron in the same horizontal plane. The formwork removal-free reinforced concrete column construction device is simple in structure and flexible in application, the using amount of steel formworks or wooden formworks is reduced, steel materials and wooden materials are reduced, and the environment is protected.

The invention discloses a restoration fixing frame in the orthopedics department. The restoration fixing frame in the orthopedic department comprises a first fixing rod and a second fixing rod, wherein the first fixing rod is rotatably connected with the end, close to the first fixing rod, of the second fixing rod, and the first fixing rod is fixedly provided with two first fixing blocks; the bottom of each first fixing block is provided with two first bolts which are connected with a first clamping plate in a threaded mode, the first clamping plate is located at one side of the first fixing blocks, and each first fixing block, the first clamping plate and the corresponding two first bolts are fastened and connected with a first bone round needle; one end of the first fixing rod is fixedly connected with a gear, and the second fixing rod is fixedly provided with two second fixing blocks; the bottom of each second fixing block is provided with two second bolts which are connected with a second clamping plate in a threaded mode, the second clamping plate is located at one side of the second fixing blocks, and each second fixing block, the second clamping plate and the corresponding two second bolts are fixedly connected with a second bone round needle. The restoration fixing frame in the orthopedic department has the advantages of being reasonable in structure and simple to operate, has a restoration function, and can freely adjust a fixing angle.

The invention relates to the technical field of engineering building, and discloses an assembly type partition wall connecting member and a using method thereof. The connecting member comprises anchoring sleeves, connecting rods and adjusting sleeve tubes, and the central lines of the anchoring sleeves, the connecting rods and the adjusting sleeve tubes are located on the same straight line; the anchoring sleeves are separately arranged on the partition walls on the two sides, the connecting rods are clamped with the anchoring sleeves on the two sides respectively, and the connecting rods on the two sides are connected as a whole by the adjusting sleeve tubes. The anchoring sleeves are pre-embedded in the to-be-connected partition walls on the two sides for limiting, finally the adjustingsleeve tubes and the connecting rods on the two sides are screwed tightly using a fixing tool, and therefore the fixedly connecting of the partition walls on the two sides is achieved. The connectingmember has the advantages that the structure is simple, the adjusting on the connecting stressing force and connecting length of the partition walls can be achieved, and the connecting member has higher flexibility compared with a prior art.

The invention discloses a liquid crystal display screen with an automatic storage structure for an intelligent household electrical appliance, and relates to the technical field of intelligent household electrical appliances. The liquid crystal display screen comprises an outer cabinet body, a display screen body and a heat dissipation reinforcing mechanism, a first partition plate is fixed in front of the middle of the outer cabinet body, and an object placing assembly is installed on the inner wall of the upper portion of the outer cabinet body; a damping bottom plate is fixed to the bottom of the outer cabinet body, a lifting mechanism is installed on the rear side of the upper portion of the damping bottom plate and comprises a hydraulic cylinder, a movable lifting frame, a fixing plate and a multi-section movable contraction plate, and the hydraulic cylinder is located on the rear side of the lower portion of the outer cabinet body; and the movable lifting frame is arranged on the upper side of the hydraulic cylinder, and the fixing plate is connected to the upper portion of the movable lifting frame. The liquid crystal display screen has the beneficial effects that by using a telescopic mechanism and a lifting mechanism, the display screen body can be driven to retract and descend, so that the display screen body can be stored to the lower part in the outer cabinet body, and the display screen body and the outer cabinet body are combined to realize invisible installation.

The invention discloses a fish state monitoring device capable of achieving multi-angle thunderstrike. The fish state monitoring device comprises a testing box, a testing medium, a testee, a sliding way mechanism, a current regulation system and a testing electrode mechanism, wherein the testing box is provided with a testing chamber; the testing medium is arranged in the testing chamber; the testee is arranged in the testing chamber and located in the testing medium; the sliding way mechanism is disposed on the testing box and located in the testing chamber; and the testing electrode mechanism is slideably arranged on the sliding way mechanism and electrically connected with the current regulation system. Accordingly, while the testing electrode mechanism slides on the sliding way mechanism, the magnitude of supplied currents is regulated, the condition that a fish in a fishpond is affected by impact currents which come at different angles and in the different directions or have different magnitudes can be realistically and scientifically simulated, a worker can take corresponding protective measures advantageously, and fish safety is ensured. Meanwhile, the fish state monitoring device is simple in structure, convenient to operate and high in safety and reliability.

The invention discloses a heat dissipation method for a transformer station, and the method comprises the following steps: 1, starting a dustproof piece; 2, starting a cooling fan, wherein the rotating speed of the cooling fan is 1000-2800 r / min. An outer end of a blade is slidingly connected with a sliding block, and the sliding block can slide outwards under the action of a centrifugal force after the blade rotates. The sliding of the sliding block inevitably drives a second magnet, an air bag and a top plate to move outwards, and the dustproof piece also can move outwards, and the upper endof a connecting rod moves upwards. The lower ends of the connecting rod moves in a reverse direction, thereby driving a torsion handle of a sliding switch to move. After the temperature decreases, the air bag shrinks to control the torsion handle to move in a reverse direction, thereby reducing the rotating speed of the cooling fan. The above operations are carried out in a looped manner, therebyachieving the automatic adjustment. The method can solve a problem that a conventional box-type transformer substation is low in heat dissipation efficiency.

The invention discloses a connecting structure and construction method of steel ribs and hoops of a steel rib concrete structure column and relates to the technical field of steel rib concrete structure column construction. The BIM technology is used for establishing data models of profile steel rib columns, longitudinal reinforcing steel bars and the hoops, and meanwhile, the size and the positions of hoop connecting boards and the hole diameter and the forming positions of run-through holes are determined; and binding, buckling and fixing operation of the hoops, the profile steel rib columnsand the longitudinal reinforcing steel bars is finished on the site. In the hoop connection construction process of the profile steel concrete structure column, the longitudinal hoop connecting boards are welded to profile steel column webs, the hoops are buckled to the hoop connecting boards, web perforation and hoop welding construction are not needed, construction operation efficiency can be improved, the profile steel web section loss ratio can be reduced, hoop connection reliability can be guaranteed, the profile steel stress performance is improved, meanwhile, cost can be saved, a construction period can be shortened, and construction operation difficulty and construction personnel labor intensity are reduced.

The invention discloses a non-welding stone curtain wall mounting structure which comprises at least one groove type embedded piece, at least one T-shaped bolt, at least one switching piece, at least one first connecting piece and at least one stone connecting component. The groove type embedded piece is arranged in a reserved groove of a building body. A T-shaped head of the T-shaped bolt is detachably arranged in the groove type embedded piece. A screw rod of the T-shaped bolt extends out of the building body. One end of the switching piece is connected with the T-shaped bolt through a nut. The other end of the switching piece is connected with a certain vertical column. The connecting piece is used for being connected with the certain vertical column and a curtain wall horizontal beam. The stone connecting component is used for being connected with a stone plate and the curtain wall horizontal beam. The invention further discloses a non-welding stone curtain wall mounting method. A mechanical bolt mode is completely used for connecting, horizontal-vertical position adjusting of a steel structure part is convenient, on-site welding work is avoided, fire hazards are basically removed, and due to mechanical connecting, detaching and maintaining of the stone curtain wall are convenient.

The invention discloses a heat dissipation method for a transformation device. The heat dissipation method comprises the steps of: step 1, opening dust-proof sheets; step 2, turning on a heat dissipation fan, wherein a rotation speed of the heat dissipation fan is 1500-2500 r / min, the outer end of a blade is slidably connected with a sliding block, each sliding block can slide outwards under the action of a centrifugal force after the corresponding blade rotates, the sliding of each sliding block is bound to drive a second magnetic body, an air bag and a top plate to move outwards, the corresponding dust-proof sheet can move outwards accordingly, the upper end of a connecting rod moves outwards, the lower end of the connecting rod moves reversely so as to drive a button handle of a slide switch, and the air bag contracts to control the button handle to move reversely after the temperature is lowered, so as to reduce the rotation speed of the heat dissipation fan, and the steps are repeated to realize automatic adjustment. The heat dissipation method for the power transformation equipment can solve the problem of low heat dissipation efficiency of the existing box type transformer substation.

The invention discloses a brazing material for repairing an anode steel claw and a preparation method thereof. The brazing material comprises tubular brazing filler metal and semi-ring-shaped brazingfiller metal, a corrosion section of an anode steel claw head to be repaired is cut off, a boss is machined at the lower end of the anode steel claw head to be repaired, a groove is machined in the upper end of round steel replacing the corrosion section, the tubular brazing filler metal is placed in the groove, and the semi-ring-shaped brazing filler metal is placed on the edge of the groove; thetubular brazing filler metal is formed by folding a brazing filler metal thin strip with the surface coated with a brazing flux layer for multiple times in the length direction to form short strip-shaped brazing filler metal with the brazing filler metal and brazing fluxes mutually alternately and then carrying out winding by taking a short edge as a shaft; the semi-ring-shaped brazing filler metal is formed by cutting a brazing filler metal thin strip with the surface coated with a brazing flux layer into semi-ring-shaped brazing filler strips and then carrying out multi-layer overlaying; and the brazing filler metal thin strip comprises, by weight, 50-55 parts of copper, 37.5-41 parts of zinc, 3.6-4.3 parts of manganese, 1.9-2.6 parts of cobalt, 0.7-0.95 part of iron, 1.6-1.9 parts of copper-plated graphene and 0.1-0.3 part of microelements. The brazing material is specially used for repairing the anode steel claw, the resistivity of the repaired steel claw is remarkably reduced, and the repaired steel claw is good in conductivity, high in strength, and long in service life.

The invention discloses a Faraday probe, relates to the technical field of aerospace instruments, and aims at solving the technical problems of low measurement accuracy of the present Faraday probe. The Faraday probe comprises a Faraday probe body. The Faraday probe body comprises a collection ring, a collection protection insulation device and a protection ring. The external side of the collection ring is sleeved by the collection protection insulation device. The external side of the collection protection insulation device is sleeved by the protection ring. The collection protection insulation device and the collection ring are fit in an interference way. The collection protection insulation device and the protection ring are fit in a clearance way.

The invention relates to a T-shaped integral-rotation adjustable cantilever base. The T-shaped integral-rotation adjustable cantilever base comprises a base body which is fixed to a strut and installed vertically, and horizontal connecting single lugs are arranged on the side face of the base body. Opening holes are formed in the middles of the connecting single lugs, the connecting single lugs the and lower connecting rings on the upper portions of the connecting single lugs are fixed, the lower connecting rings are provided with opening holes corresponding to the connecting single lugs, andvertical bearing assemblies is are arranged in the opening holes. The bearing assemblies and the lower connecting rings are fixed and are connected with boss rotary fixing shafts, and cantilever brackets are mounted on the boss rotary fixing shafts through the end portions. According to the T-shaped integral-rotation adjustable cantilever base, the free rotation of the boss rotary fixing shafts isrealized through rolling bearings, the horizontal free rotation of the cantilever brackets is further driven by the close connection between square structures of the lower parts of the boss rotary fixing shaft and square holes of the cantilever brackets, the horizontal free rotation of contact lines and carrier cables of the end portions of the cantilever brackets is further driven, and the horizontal lateral movement function of flexible mobile contact nets is further realized.

The invention discloses an inflatable composite board, a folding container and a recreational vehicle. The inflatable composite board comprises an inflatable fabric board, the inflatable fabric boardcomprises an inflatable cavity and an inflatable fabric defining the inflatable cavity, and the external surfaces of the inflatable fabrics of one or two sides of the inflatable fabric board are provided with metal layers. The inflatable composite board can keep warm and insulate heat, is a light-weight material, and has a good anti-piercing effect and anti-aging effect; and in particular, when used on the folding container and the recreational vehicle, the inflatable composite board can greatly realize the light weight of structures.

The invention provides a tower crane attachment device. The tower crane attachment device comprises a standard joint attachment frame, four connecting rods and two sets of hoop assemblies, wherein thestandard joint attachment frame is fixed between two sections of standard joint arms of a tower crane; the two sets of hoop assemblies are respectively matched with two concrete columns, close to sides of the joint arms of the tower crane, of a main building; each hoop assembly comprises two holding plates and a plurality of fixed bolts; the two holding plates are connected and fixed by the fixedbolts; the four connecting rods form a group in pair; the two sets of connecting rods are corresponding to the two sets of hoop assemblies; and each set of hoop assemblies are fixed to the standard joint attachment frame by a set of connecting rods. Through the cooperation of the two sets of hoop assemblies and the concrete columns of the main building, the connection and fixation between the tower crane and the main building is realized; after the subsequent completion of the main building, the hoop assemblies only need to be removed without damage to the surface of the main building, so that subsequent leakage problems are avoided; and the fixed structure and the distribution position of the four connecting rods strengthen the stability of the connection between the attachment frame andthe main building.

The invention relates to a forward-moving type forklift storage battery unhooking device which comprises a vehicle frame, a gantry, a vehicle frame middle plate and a storage battery supporting frame. The lower end of the gantry is provided with a lock block, the vehicle frame middle plate is provided with a lock mechanism, the lower end of the storage battery supporting frame is provided with a lock hook, the lock hook comprises a first hook head matched with the lock block and a second hook head matched with the lock mechanism, when the first hook head and the lock block are locked in a matched mode, the second hook head and the lock mechanism are in the unlocking state, and under the state, the storage battery supporting frame and the gantry are fixed relative to each other; when the second hook head and the lock mechanism are locked in a matched mode, the first hook head and the lock block are in the unlocking state, and under the state, the storage battery supporting frame and the vehicle frame are fixed relative to each other. It is known through the forward-moving type forklift storage battery unhooking device that connection and fixation between the storage battery supporting frame and the gantry and between the storage battery supporting frame and the vehicle frame are achieved through different matches between the lock hook and the lock block and between the lock hook and the lock mechanism, therefore forward movement and return of a storage battery are achieved, and maintenance, adjustment, assembling and disassembling of the storage battery become simple and convenient.

The invention provides a distance adjusting device and an LED (Light Emitting Diode) display device thereof. The distance adjusting device comprises a first adjusting mechanism; the first adjusting mechanism comprises a first connection part (10) which is provided with a first through hole (11), a second connection part (20) which is matched with the first connection part and provided with a second through hole (21), an adjusting pin (30) which comprises a first column section (33) and an eccentric section (32) which is arranged at one end of the first column section (33) and a rotation stopping part (40); the first column section (33) is matched with the first through hole (11); the eccentric section (32) is matched with the second through hole (21); the eccentric section (32) rotates eccentrically inside the second through hole (21) to adjust the distance between the first connection part (10) and the second connection part (20); the eccentric section (32) is fixed through the rotation stopping part (40) after eccentric rotation. According to the technical scheme, the distance adjusting device effectively solves the problem that gaps between LED product units in the prior art cannot be adjusted.

The invention belongs to the field of baked porcelain plates, particularly to a baked porcelain plate with excellent breakage preventing effect, and aims to solve the problem of troublesome installation and assembly of a traditional baked porcelain plate. The baked porcelain plate with excellent breakage preventing effect comprises a first plate body and a second plate body; two extension chutes are formed in the side, near the second plate body, of the first plate body; extension connecting blocks are slidingly mounted in the two extension chutes; two square connecting grooves are formed in the side, near the first plate body, of the second plate body; one sides of the extension connecting blocks extend into the corresponding square connecting grooves, and triangular inclined blocks are fixedly mounted at the tops and the bottoms of the extension connecting blocks; and spring extrusion chutes are formed in the top inner walls and the bottom inner walls of the square connecting grooves. The baked porcelain plate is simple in structure and convenient to use; and the first plate body and the second plate body can be fixedly connected more conveniently, and can preferably adapt to thermal expansion and cold shrinkage effects caused by external factors.

The invention relates to the technical field of valves, in particular to a portable sewage draining valve for a dining hall. The portable sewage draining valve comprises a valve body, a connecting structure, a sealing structure, an adjusting structure, a treading structure and a filtering structure; and the connecting structure is arranged, the valve body can be quickly connected and fixed with sewers at bottom ends of vegetable washing tanks with different diameters, the sealing structure is arranged, the tightness between the valve body and a sewer can be realized conveniently, the conditionof water leakage is prevented, the treading structure is arranged, the drainage of sewage in a vegetable washing tank can be controlled by feet, therefore the drainage of the sewage in the vegetablewashing tank is not required to be controlled by hands, hands can be liberated, the hands can act on other works, the secondary pollution of the hands can be avoided, the cleanness of washing vegetables can be improved, while the treading structure works, the treading structure can act on the filtering structure , the filtering structure is arranged, broken vegetable leaves inside vegetable washing water can be intercepted and filtered, and accordingly the situation that the broken vegetable leaves block the sewer can be avoided.

The invention discloses a weight compensation device on an underframe of an elevator carriage. Multiple balance weight blocks are arranged in a box body, the box body is matched with a connecting plate to clamp the underframe of the carriage, and the box body provided with multiple balance weight blocks is connected and fixed on the underfame of the carriage, thus the weight of the carriage can be compensated, the forward-backward gravity of the carriage is balanced, and abrasion of a guide shoe to the carriage is reduced, the balance weight blocks in an inner cavity can be increased or decreased by virtue of an opening of the box body, and the box body is matched with a connecting block to clamp the underframe of the carriage and be separated from the underframe of the carriage, thus the box bodies can be increased or decreased on the underframe of the carriage, the compensation range on the weight of the carriage is wider, and the forward-backward gravity of the carriage can be better balanced. The box body is fixed on the underframe by the way that the box body is matched with the connecting plate to clamp the underframe of the carriage, thus the box body can be conveniently mounted and fixed no matter the underframe of the carriage adopts a steel tube with a C-shaped cross section or the steel tube with a rectangular cross section, namely the balance weight blocks are mounted and fixed on the underframe of the carriage.

The invention belongs to the technical field of waste gas treatment, and discloses a pressure change capacity expansion self-cleaning type waste gas efficient filtering device which utilizes atmospheric pressure formed in the outer sides of filter screens during blockage to force the pair of filter screens to rotate and get close to each other, so that a fixed plate gradually moves upwards under the effect of elastic force of a compression spring, an inclined cleaning plate is driven to cling to the surfaces of the filter screens to move upwards, particles attached to the surfaces of the filter screens are scraped, when the push plate penetrates through the pressure relief holes to push the blocking plates to rotate along with gradual approaching of the fixed rods and the fixed plates, thepressure relief holes are opened, waste gas enters the space between the pair of inclined cleaning plates and then is filtered by the filter screens, the pressure in the outer sides of the filter screens is reduced, the filtering screens move far away from each other and return to the original places when being depressurized, and waste gas is thus filtered and purified. The cleaning process of the filter screens is automatically realized on the basis of not interrupting the filtering process, so that the waste gas can be continuously filtered and purified, the filter screens are cleaned automaically, and therefore, a continuous and efficient waste gas purification process is realized.

The invention relates to a lifting point of a plate-type traction shell flange, which comprises a lifting point connecting plate arranged on the bottom, and a traction eye plate perpendicularly fixed to the lifting point connecting plate, wherein the lifting point connecting plate is provided with a plurality of threaded holes; a thread bushing is respectively installed in each threaded hole; the middle part of the lifting point connecting plate is provided with a staircase groove from one end to the other end of the lifting point connecting plate; and the traction eye plate is clamped in the staircase groove in the lifting point connecting plate. When horizontally lifting the shell or overturning the shell, only simple adjustment is needed to implement connection and fixation between two flange end surfaces, and the motions of lifting and overturning of the shell can be smooth; and meanwhile, the shell is always in the favorable stressed state, thereby lowering the risks of bending, compression deformation and tearing of the lifting point.

The invention relates to the technical field of wire cutting devices, and discloses a wire cutting device for communication engineering. The wire cutting device comprises a workbench, wherein a servo motor is fixedly arranged at the right side of the top of the workbench; a rotating rod is fixedly connected to the output end of the right side of the servo motor; two sets of rotating plates and a set of limiting plates are arranged in the middle of the outer wall of the rotating rod; and the limiting plates are located between the two rotating plates. According to the wire cutting device for communication engineering, a wire is clamped in clamping grooves of the limiting plates in the front-back horizontal direction, the rotating rod rotates to drive two sets of rotating plates A and rotating plates B to do circular motion at the same time, and two sets of extrusion blocks close to each other drive respective blades to cut the wire on the limiting plates, so that the rotating plates and linkage blocks rotate by a circle to extrude and cut the wire in the clamping grooves once, fixed-length cutting of the wire for communication engineering is achieved, the labor intensity of wire cutting is reduced, and the wire cutting efficiency is improved.

The invention relates to the technical field of equipment of mounting components and parts onto a PCB, in particular to equipment used for mounting a switch to the PCB. In the equipment used for mounting the switch to the PCB, a rotary disc drive device is used for driving a rotary disc to rotate; a mounting base is mounted on a rotary disc; when the rotary disc rotates, the mounting base can sequentially reach a switch mounting station, a PCB mounting station, a welding station and an unloading station; a PCB mounting slot and a switch mounting slot are formed in the mounting base; a switch supply device is used for placing the switch into the switch mounting slot of the mounting base at the switch mounting station; a PCB supply device is used for placing the PCB into the PCB mounting slot of the mounting base at the PCB mounting station; a welder is used for welding the switch onto the PCB; and the unloading device is used for unloading the PCB at the unloading station. The equipmentused for mounting the switch to the PCB disclosed by the invention can automatically mount the switch to a position, which corresponds to the switch, of the PCB, can automatically weld, and saves labour power.

The invention discloses a vibration-reduction fastener system which comprises position-fixing bases, a rail-bearing plate and locking structures, wherein the lower parts of the position-fixing bases are column bodies used for being embedded in a rail foundation; the upper parts of the position-fixing bases are bosses used for being connected to the rail-bearing plate; the rail-bearing plate is provided with elastic bar bases and first through holes through which the bosses penetrate; and the locking structures are used for realizing the locking connection between the rail-bearing plate and theposition-fixing bases. The vibration-reduction fastener system is applicable to the field of rail transit. The vibration-reduction fastener system is capable of effectively overcoming the defects inthe prior art, effectively reducing the cost of the fastener system, effectively improving the overall strength and the service life of a fastener and effectively reducing the installation height of arail, thereby effectively avoiding the increase in tunnel construction cost due to high installation height and effectively improving the transverse stability of the rail at the same time.