120results about How to "Easy to assemble and fix" patented technology

The invention discloses a shockproof distribution box, comprising a cabinet, a first spring and an insulating plate, wherein the bottom of the cabinet is provided with a cabinet seat; engagement slotsare formed on both sides of the bottom of the cabinet seat; an engagement board is connected in the engagement slots; a side surface of the engagement board is provided with a sleeve; a threaded rodpasses through the sleeve; the threaded rod is connected with a nut close to the top of the sleeve; the threaded rod is connected with a cushion pad close to the bottom the sleeve; the first spring sleeves the threaded rod close to the bottom of the cushion pad; the threaded rod and the first spring are connected in a base through a first cylindrical groove. The shockproof distribution box is provided with the sleeve. When the position of the distribution box is vibrated, the first spring below the cushion pad and a second spring below a first groove are squeezed and contracted, so that the first spring damps the four corners of the cabinet seat through the sleeve above the cushion pad so as to damp the distribution box.

The invention discloses a fabricated steel structure integrated green building and a designing and mounting process thereof. The fabricated steel structure integrated green building comprises a lowermounting seat, a floor assembly detachably mounted on the lower mounting seat, supporting columns detachably mounted on the lower mounting seat, an upper mounting seat detachably mounted on the top portions of the supporting columns and a roof assembly mounted on the top portion of the upper mounting seat. The supporting columns are detachably connected with the lower mounting seat, the sections of the supporting columns are in L shapes, and the end portions of the supporting columns are fixedly connected with positioning blocks. The fabricated steel structure integrated green building has theeffects that assembly and fixation are convenient, and time and labor are saved.

The invention discloses an assembled broadband optical isolator capable of effectively reducing optical loss, which comprises an isolator upper cover plate, a rubber air bag, a connecting plate and an extrusion block; the isolator upper cover plate and the isolator lower cover plate are both provided with connecting pieces through bolts, and are both connected with rubber rings through screws; a reset spring is welded and fixed to the connecting plate, the top end of the reset spring is welded and fixed to the isolator upper cover plate, and a rotating shaft is slidably connected into the limiting sliding groove. The assembled broadband optical isolator capable of effectively reducing the optical loss is provided with the connecting plate and the extrusion block, an optical filter can be pushed to the position above the connecting plate through the rotating shaft and a limiting sliding groove, at the moment, the optical filter can be conveniently and stably installed, and similarly, the optical filter can be disassembled and replaced by pushing the connecting plate upwards, so that the use diversity and stability of the isolator are improved.

The invention discloses a built-in type panoramic sunroof roller shutter structural assembly. The built-in type panoramic sunroof roller shutter structural assembly comprises roller shutter bases and a roller shutter assembly. The roller shutter assembly comprises a roller shutter rotating shaft, a roller shutter drum and a roller shutter. The roller shutter drum is rotationally arranged on the roller shutter rotating shaft in a sleeving mode. The roller shutter rotating shaft is provided with a torsion spring in a sleeved mode. One end of the torsion spring and the roller shutter rotating shaft are fixed. The other end of the torsion spring and the roller shutter drum are fixed. One end edge of the roller shutter is arranged on the roller shutter drum in a winding mode. The other end edge of the roller shutter is arranged in a roller shutter clamping strip in a clamped mode. The number of the roller shutter bases is two. The roller shutter bases are correspondingly located at the two ends of the roller shutter rotating shaft. Rotating holes which are fixedly matched with the ends of the rotating shaft are formed in the inner side walls of the roller shutter bases. According to the built-in type panoramic sunroof roller shutter structural assembly, the structural design is reasonable, assembly, matching and fixing are convenient, using and operation are flexible and convenient, and the practical value of a sunroof is further improved.

The invention relates to the technical field of PVC pipes, in particular to a steel strip reinforced PVC pipe. An inner layer PVC pipe body, an outer layer PVC pipe body and a steel strip ring arranged between the inner layer PVC pipe body and the outer layer PVC pipe body are included; a first screw sleeve is installed on the top of the outer surface wall of the inner layer PVC pipe body; the position, located below the first screw sleeve, of the outer surface wall of the inner layer PVC pipe body is sleeved with the steel strip ring; the bottom of the outer surface wall of the inner layer PVC pipe body is provided with a second external thread; and the outer layer PVC pipe body is arranged on the outer side of the inner layer PVC pipe body. According to the steel strip reinforced PVC pipe, a combined rotary connection type structure is adopted, the structure facilitates assembling and fixing treatment of the steel strip reinforced PVC pipe, the workload for assembling the steel stripreinforced PVC pipe is lowered, meanwhile the stability of the overall structure of the steel strip reinforced PVC pipe is improved; and besides, a liquid filtering structure is arranged inside, a solution entering the PVC pipe is subjected to filtering treatment, the abrasion of the interior of the pipeline is lowered, and meanwhile the liquid circulating stability is improved.

The invention provides an antistatic elastic piece, which includes a first conducting part and a pair of second conducting parts. The first conducting part has at least one first protrusion structure. The pair of second conducting parts are respectively connected to both sides of the first conducting part, and each second conducting part further has a second conducting part and a pressing part. The second conducting member has a second protrusion structure. The pressing part is arranged on one side of the second conducting part. In another embodiment, the present invention further provides an antistatic device, which is to arrange the antistatic shrapnel on a housing with an opening, and use the antistatic shrapnel as a means of closing the opening. An electrostatic conduction medium between the cover plate and the housing.

The invention provides a tube electrode electroslag welding mould device applicable to steel rails. The tube electrode electroslag welding mould device comprises a mould fixing assembly (1), a mould assembly (2) and a cooling circulation assembly (3), and is characterized in that the mould fixing assembly (1) is fixed on a rail head of a to-be-welded steel rail (4); the mould assembly (2) is arranged on the middle part of the mould fixing assembly (1); and the cooling circulation assembly (3) is arranged in the mould assembly (2). The equipment is mainly a copper mould which is approximate toan I-steel shape, can be opened and closed simply and conveniently, can be used repeatedly, is convenient to assemble and fix and can realize water circular cooling; one-step continuous welding moulding of a steel rail whole section can be realized; the tube electrode electroslag welding mould device can be used for high-speed railways, interurban railways, subways, workshop gantry crane rails andthe like; the tube electrode electroslag welding mould device can be used flexibly; production cost is lowered; and working efficiency is improved.

The invention discloses a double-break circuit breaker comprising a shell which is internally provided with a rotating shaft and a tripping mechanism which is used for driving the rotating shaft to rotate. The shell is also internally provided with multiple sets of double-break structures. Each set of double-break structure comprises two static contacts and two moving contacts. The two moving contacts are arranged side by side. The position, which is corresponding to each set of double-break structure, of the rotating shaft is provided with a concave cavity. One end of each of the two moving contacts stretches into the concave cavity of the rotating shaft. The end parts of the ends, which are positioned in the concave cavity of the rotating shaft, of the two moving contacts are electrically connected via a flexible conductive member. A moving contact point is fixed on the other end, which is positioned outside the concave cavity of the rotating shaft, of each of the two moving contacts. A static contact point is fixed on the internal ends of the two static contacts respectively. One-to-one correspondence suction closing can be formed by the two moving contact points on the two moving contacts and the two static contact points on the two static contacts. With application of the aforementioned arrangement, the invention provides the double-break circuit breaker which can effectively enhance breaking capacity without increasing the size of the shell of the circuit breaker.

The invention relates to a pipe fitting structure. The pipe fitting structure comprises at least one first connecting pipe, and a second connecting pipe which is sleeved with the first connecting pipe; the first connecting pipe is provided with a first matching surface; a second fitting part opposite to the first fitting surface is arranged on the second connecting tube; at least one first interference fit area, a first transition fitting area, a first gap fitting area, a second transition fitting area, a second interference fit area, a third transition fitting area, a second gap fitting area and a fourth transition fitting area are sequentially circumferentially formed on the first fitting surface; at least one extrusion part and a second extrusion part which are in match with the first fitting surface are formed on two top point parts with the largest distance on the second fitting part; the second extrusion part is positioned in the first interference fit area; the second extrusion part is positioned in the second interference fit area. The pipe fitting structure can be clamped by two-way rotating, so that the assembling and fixing are convenient; the structure is simple; a locking buckle device is saved, so that the production cost is reduced.

The invention discloses a coke oven top plate pipe laid assembled type fixing rack which comprises a plurality of pre-laid bar dowels, a plurality of longitudinal horizontal tubes, a plurality of transverse horizontal tubes, a plurality of lower laid ejection tubes, a plurality of laid cleaning tubes, a plurality of laid temperature testing tubes and a plurality of control elevation short tubes, wherein the pre-laid bar dowels are pre-laid on frame column heads of a coke oven foundation top plate; the control elevation short tubes are welded on the pre-laid bar dowels; the longitudinal horizontal tubes are erected along a frame column longitudinal tower and are fixedly connected with the control elevation short tubes; the transverse horizontal tubes are fixedly erected on the longitudinal horizontal tubes; the longitudinal horizontal tubes and the transverse horizontal tubes form an overall scaffold grid net; the lower laid ejection tubes and the laid temperature testing tubes are fixedly mounted on the transverse horizontal tubes; the laid cleaning tubes are fixedly mounted between two adjacent transverse horizontal tubes. The coke oven top plate pipe laid assembled type fixing rack is convenient and rapid to assemble and fix, good in transfer usability, easy in disassembling fixed laid tubes and relatively convenient to control elevation, displacement and mounting process adjustment, and moreover as a fixing rack material can be transferred and recycled, the cost can be reduced.

The invention relates to the technical field of electronic tags, and discloses a disposable RFID electronic anti-counterfeit tag structure which comprises a base, the bottom of the inner wall of the base is fixedly connected with the outer side wall of a bottom plate, the top of the bottom plate is fixedly connected with the bottom of a tag antenna and the bottom of a tag chip, and the tag chip islocated on the inner side of the tag antenna. A tag antenna and the tag chip are fixedly connected with one ends of the two groups of copper wires respectively. According to the disposable RFID electronic anti-counterfeit tag structure, a white phosphorus sheet and a low-melting-point connecting wire are arranged, after shielding of the white phosphorus sheet is canceled, the white phosphorus sheet makes contact with air, the white phosphorus sheet generates an oxidation reaction, the white phosphorus sheet generates heat in the oxidation reaction process, and heat is transmitted to the connecting wire by a heating hole. Thus, the low-melting-point connecting line is fused, connection between the tag chip and the tag antenna is canceled, and the electronic tag cannot be scanned and used again.

The invention provides a Venturi combustor structure. The Venturi combustor structure comprises a spray nozzle and a mixing tube, wherein the mixing tube is provided with a gas inlet part for injecting air and an outlet part for outputting a gas mixture; the spray nozzle is arranged at the gas inlet part; a plurality of flame holes are formed in one side surface of the mixing tube; the flame holesdefine the outlet part; and a shrinkage structure is arranged in the mixing tube. The shrinkage structure is configured, so that a shrinking mixing section with a gradually reduced section area and adiffusing mixing section with a gradually increased section area are formed in the mixing tube.

The invention discloses a housing, a fastening member thereof, and a display device incorporating the housing. The housing is suitable for securing a board member that is formed with an engaging hole. The housing includes an outer housing, a back plate and a fastening member. The outer housing includes an inner surface and a protruding post that protrudes from the inner surface. The back plate is disposed in the outer housing, is spaced apart from the inner surface, and includes a protrusion. The fastening member is disposed between the outer housing and the back plate, and includes a positioning cap, a positioning post, and an engaging hook. The positioning cap covers on the protrusion. The positioning post protrudes from the outer surface of the positioning cap and is engaged with the protruding post. The engaging hook includes a clamping plate that protrudes from the positioning post and that is spaced from the above of the positioning cap, and an engaging block that protrudes from the clamping plate towards the side of the positioning cap. The clamping plate and the positioning cap cooperatively clamp the board member therebetween. The engaging block is removably engaged in the engaging hole.

The invention relates to the technical field of structural vibration control, in particular to a laser radar passive vibration damping device for a large-load unmanned aerial vehicle. The device comprises an unmanned aerial vehicle support, a fixed lifting ring, connecting columns, a connecting plate, a rubber shock absorber, a load mounting plate and a laser radar, wherein the unmanned aerial vehicle support is connected with the load mounting plate through the plurality of connecting columns, the upper end of each connecting column is connected with the unmanned aerial vehicle support through the fixed hanging ring, the lower end of each connecting column is connected with the load mounting plate through the rubber shock absorber, and the laser radar is arranged on the load mounting plate. According to the device, a suspension structure is adopted, the mounting space is sufficient, the disassembly is convenience and the like; and in combination with the vibration damping device structure, in the actual work of the unmanned aerial vehicle, the installation of portable load such as the laser radar is facilitated, the working performance range is improved, and meanwhile, the reliable working performance requirement can be met.

The invention discloses a structure improved cold shield baffle of a cryopump. The structure improved cold shield baffle of the cryopump comprises a cross-shaped fixed support and cone-shaped baffle rings, a plurality of inclined slots are formed in the fixed support, the baffle rings are inserted into the slots of the fixed support, vertical annular bodies are formed through extending on the lower side edges of the baffle rings, a plurality of notches are formed in the annular bodies, folded edges are formed in the side edges of the notches of the annular bodies, and the folded edges lean against the side walls of the baffle ring fixed support and are fixed on the fixed support through rivets in a riveted mode. According to the structure improved cold shield baffle of the cryopump, a riveting structure is adopted for the baffle rings on the fixed baffle to replace a welding method, so that the assembly and the fixation of the baffle are facilitated, the time of the assembly is reduced, and the production efficiency is improved.

The invention relates to a disconnecting switch transportation tool. The disconnecting switch transportation tool comprises a bottom supporting frame used for fixedly carrying disconnecting switches to be transported. The bottom supporting frame is provided with a bottom supporting face and a top supporting face, wherein the bottom supporting face is used for making abutting contact with a transportation facility or the ground, and the top supporting face is used for supporting the disconnecting switches. The bottom supporting frame is provided with bolt connecting structures for detachably and fixedly assembling the disconnecting switches to be transported to the bottom supporting frame. During using, the disconnecting switches can be directly dismounted from and mounted on the bottom supporting frame, destructive dismounting is not needed, and the transportation tool can be repeatedly utilized. Meanwhile, the disconnecting switches are fixed to the bottom supporting frame through the bolt connecting structures, the fixing stability of the disconnecting switches can be effectively improved, and equipment damage caused by shaking in the transportation process is reduced.

The invention discloses a shoe sole cleaning machine with a spray disinfection function for high-heeled shoes. The machine comprises a cleaning unit with a cleaning unit framework, the cleaning unit framework is shaped like a rectangular groove with an opening facing upwards, and a cleaning component is arranged in the rectangular groove of the cleaning unit framework; the cleaning component comprises a bearing frame, multiple rows of transversely arranged U-shaped grooves are formed in the upper portion of the bearing frame, and the U-shaped grooves are internally provided with electrically driven cleaning brush rolls which are provided with spirally distributed bristles; the top of the bearing frame bears a bearing net used for people to stamp, the length of the bristles makes the bristles stretch out of meshes of the bearing net and brush shoe soles of treaders. Disinfectant spray heads are arranged on the two sides of the cleaning unit respectively. Preferably, a stay cord is arranged at an outlet end of the cleaning unit to fix, splice and connect a shoe sole drying unit. The shoe sole cleaning machine has the advantages that the structure is simple, use is safe, the service life is long, convenience is brought to splicing and fixing operation, spray disinfection can be formed on vamps while the shoe soles are cleaned, and the shoe soles are disinfected while being dried.

The invention belongs to the technical field of steel profile drilling machining, and relates to a pipe stopper capable of preventing displacement for a steel pipe drilling machine. The pipe stopper comprises a supporting portion, a lifting portion, a pipe stopping portion and a connecting positioning portion. The pipe stopper is characterized in that the pipe stopper further comprises a strengthening fixing frame assembly; the supporting portion is disposed on a drilling machine table, the lifting portion is fixedly installed on the supporting portion, the pipe stopping portion is fixedly installed on the lifting portion, and the connecting positioning portion is connected between the supporting portion and the drilling machine table; and the strengthening fixing frame assembly is composed of a strengthening fixing plate and a tightening screw, the strengthening fixing plate is fixedly installed on the drilling machine table, one end of the tightening screw is installed on the strengthening fixing plate in a screwed mode, and the other end of the tightening screw is pressed on the supporting portion. The pipe stopper is scientific and reasonable in structural design, has the advantages of simple structure, convenient operation and assembly, tight connection, good pressing effect, being capable of effectively enhancing the anti-impact ability, being capable of effectively preventing the displacement and deviation caused by a steel pipe from hitting the pipe stopper for a long time and avoiding the error increase and the like, and has higher innovation.

The fabricated building external wall panel construction protection device comprises a first adjusting assembly, a stable bottom frame is fixed to the side end of the first adjusting assembly, a positioning bottom bolt is in threaded connection with the side, away from the first adjusting assembly, of the stable bottom frame, and a first stable assembly is movably clamped to the top end of the first adjusting assembly; a second stabilizing assembly is movably clamped to the top end of the first stabilizing assembly, a second adjusting assembly is arranged at the top end of the second stabilizing assembly, a third stabilizing assembly is movably clamped to the top end of the second adjusting assembly, and positioning assemblies are fixed to the outer walls of the first stabilizing assembly, the second stabilizing assembly and the third stabilizing assembly. A stable top frame is fixedly installed at the side end of the second adjusting assembly, and the side, away from the second adjusting assembly, of the stable top frame is in threaded connection with a stable tightening latch. According to the whole protection device, through the first adjusting assembly, the second adjusting assembly, the first stabilizing assembly, the second stabilizing assembly and the third stabilizing assembly, clamping and assembling of all parts are facilitated, and disassembling is also facilitated.

The invention discloses a prefabricated building cantilevered component and a construction method, comprising a cantilevered component beam and an assembled main beam, the cantilevered component beam is hoisted on the assembled main beam by lifting equipment, and the cantilevered component beam faces outward The protruded part is fixedly connected with the assembly main beam through the support unit and the cable pull unit respectively, and the support unit and the cable pull unit are used as the fixing system to support and fix the cantilever member beam, thereby assisting in the completion of the assembly of the cantilever member beam and the assembly main beam. Construction, by setting zipper fasteners instead of traditional connectors, due to the threaded relationship between the lock nut and the linkage pull rod, when the lock nut is turned, the linkage pull rod can pull the fixed hook to rotate, and when the toggle lever is pulled to In the vertical section of the track groove, the fixed claw hook is opened outwards to lock and fix it. On the contrary, when the lever is pushed back to the curved section of the track groove, the fixed claw hook is retracted inward to achieve the effect of quick locking and unlocking. , quickly complete the assembly work.

The invention provides an integrated type lightweight aluminum alloy shifting fork assembly suitable for a DCT gearbox. The integrated type lightweight aluminum alloy shifting fork assembly comprisesa shifting fork body, a signal magnet assembly and a neutral gear positioning block, wherein the shifting fork body comprises a shifting fork shaft as well as a first fork foot and a second fork footwhich are connected onto the shifting fork shaft; a protective structure is further arranged on the shifting fork shaft and / or the first fork foot and the second fork foot; a lug boss structure is further arranged on the shifting fork shaft; and the signal magnet assembly and the neutral gear positioning block are arranged on the lug buss structure. According to the integrated type lightweight aluminum alloy shifting fork assembly provided by the invention, the lug boss structure is arranged on the shifting fork body, so that the signal magnet assembly and the neutral gear positioning block are conveniently assembled and fixed, and therefore, supporting effect is achieved, and anti-rotating effect is further achieved. Meanwhile, the protective structure is further arranged on the shiftingfork body, and the protective structure can protect a stress position on the shifting fork body, so that loss of the shifting fork is relieved, and the service life of the shifting fork is prolonged.Besides, the integrated type lightweight aluminum alloy shifting fork assembly is further matched with a sampling position to perform an optimized design on the structure of a magnet cap, so that mounting and fixing of a magnet inside are facilitated.

The invention relates to the technical field of medical care corridor loading, in particular to a loadable intelligent ascending and descending handrail unit for a medical care corridor. The loadable intelligent ascending and descending handrail unit for the medical care corridor comprises a fixed installing support frame fixedly arranged on the wall in the medical care corridor through screw bolts. The loadable intelligent ascending and descending armrest unit for the medical care corridor provided by the invention is characterized in that a folding supporting plate and a linkage type overturning supporting mechanism are movably assembled inside the longitudinal assembling frame; by adjusting the position of the folding supporting plate, a traditional armrest unit can be conveniently and rapidly adjusted, and the switching among an armrest unit, a seat unit and a sickbed unit can be quickly achieved, so that the functionality is greatly improved; the structure is simple and convenient to adjust; the ward pressure of a medical institution can be greatly relieved; the linkage can be synchronously controlled to enable the turnover supporting mechanism to do turnover and telescopic operations, so that the bottom supporting force of the whole folding supporting plate is greatly improved, and the stability and durability of the whole unit are guaranteed; and a telescopic elastic assembling mechanism and a movable inner threaded pipe cooperate with each other, so that the assembly, disassembly and adjustment are very easy.

The invention relates to a detector core. Through the detector core, the technical problem that the polarities of two terminals of an existing detector core are prone to be connected reversely is solved. The detector core comprises a top cover, a shell, magnetic steel, an upper yoke, a lower yoke, a coil former, an upper leaf spring and a lower leaf spring, wherein the top cover is connected withthe shell, the upper yoke is connected with the magnetic steel, the lower yoke is connected with the magnetic steel, the coil former is arranged in the shell, a coil is connected onto the coil former,the magnetic steel is sleeved with the coil former, the upper leaf spring is connected with the upper yoke, and the lower leaf spring is connected with the lower yoke; the upper end of the coil former is connected with the upper leaf spring, and the lower end of the coil former is connected with the lower leaf spring; one electric lead of the coil is connected with the upper leaf spring, and theother electric lead of the coil is connected with the lower leaf spring; and the detector core also comprises a middle terminal and an edge terminal, wherein the middle terminal is connected with theupper yoke and penetrates through the top cover, and the edge terminal is connected with the upper leaf spring and penetrates through the top cover. The detector core can be applied to the technical field of detectors.

The embodiment of the invention discloses a K-shaped open type big black channel steel structure and a combination method. The K-shaped open type big black channel steel structure comprises a suspended ceiling structural body, C-shaped light steel keels, big black channel keels, K-shaped open type aluminium plates, lifting rods, light steel keel lifting pieces, big black channel keel lifting pieces, big black channels, limiting clamping hooks, limiting circular holes, limiting square holes, threaded through holes, fixing threaded studs, arched clamping seats and limiting threaded holes. The combination method comprises the steps of first, clamping the limiting clamping hooks at the lower ends of the big black channel keel lifting pieces on the big black channel keels; and then, clamping the upper ends of the big black channel keel lifting pieces on the C-shaped light steel keels and fixing the upper ends of the big black channel keel lifting pieces to the C-shaped light steel keels byusing bolts; and finally, carrying the two ends of the K-shaped open type aluminium plates between the two big black channel keels, correspondingly fixing the edges of the two ends of the K-shaped open type aluminium plates to the corresponding big black channel keels again by using the fixing threaded studs, and stably connecting the two adjacent K-shaped open type aluminium plates in the lengthdirection again by using the arched clamping seats.

The invention discloses a conveniently and fast assembled shelf and a placing method thereof. The shelf comprises a left shelf sheet and a right shelf sheet, wherein reinforcing edge blocks are arranged on the left side and right side of the left shelf sheet and right shelf sheet. The method comprises the following steps of: 1) assembling a suspension frame; 2) placing the shelf; 3) mounting the suspension frames and the frame bodies. According to the invention, the integral structural strength of the shelf can be effectively increased through the design of the reinforcing side blocks, so thatthe shelf is not easy to deform completely; and the design of disassembly and assembly between the shelf sheets is achieved through the mutual matching between connecting pieces and the reinforcing side blocks, so that the number of the assembled shelf sheets can be adjusted according to the number of the breeding of the eggs, and the breeding of the eggs is more scientific; meanwhile, when placed, the shelf is suspended through the suspension frames, and due to the limitation of the length of a limiting inserting plate, the front and rear surfaces of adjacent suspension frames are mutually abutted, and a gap exists between the front and the rear surfaces of the adjacent suspension frames, so that the air circulation in the process of suspending the shelf is ensured.

The invention provides a wire routing mechanism and a refrigerator. The wire routing mechanism is used for realizing the electrical connection between a drawer type door body and a refrigerator body,and an electrical component is arranged on the drawer type door body. The wire routing mechanism comprises a mounting box fixed in a compartment, a support frame fixed on the rear side of the drawer type door body and a fixed box fixed on the support frame, wherein a drag chain is connected between the mounting box and the fixed box. The wire routing mechanism further comprises a cable used for supplying power to the electrical component, and part of the cable is housed inside the drag chain. A first connector extending into the mounting box and a second connector extending into the fixed boxare arranged at the two ends of the cable. The wire routing mechanism protects the cable through the drag chain. Moreover, the two ends of the drag chain are respectively fixed on the mounting box andthe fixed box, so that the possible extrusion, deformation and damage of the exposed cable are effectively avoided. Thus, the stable electrical connection between the drawer type door body and the compartment is ensured, and the work is safe and reliable.

The invention relates to a positioning device for suspension bracket assembly. The positioning device comprises an underframe, a suspension bracket positioning mechanism and a frame positioning mechanism. The underframe is provided with a plurality of groups of suspension bracket mounting areas, each suspension bracket mounting area comprises two groups of suspension bracket mounting positions, and each suspension bracket mounting position comprises a plurality of suspension bracket mounting parts; each group of suspension bracket positioning mechanism comprises two positioning units, and thepositioning units are selectively arranged on the suspension bracket mounting part; and the frame positioning mechanism is used for supporting the frame and locating the frame on the underframe. According to the invention, the suspension bracket mounting areas, the suspension bracket mounting positions and the suspension bracket mounting parts which are preset on the underframe are matched; the positioning device can be used for assembling semi-trailers of different types, different sets of suspension support mounting parts are selected to be used for assembling according to the number of semi-trailer axles, the axle distance and the width parameters, the equipment and site cost can be reduced, and the assembling efficiency, the assembling precision and the assembling consistency between the frame and the suspension supports can be improved.

The invention discloses an iris recognition instrument, which comprises a body and a transparent cover. The body is internally provided with an assembly chamber used to assemble a recognition system. The front end face of the body is provided with a cover slot communicated with the assembly chamber. The body is internally provided with inserting slots in the left and right walls of the assembly chamber. The front ends of the inserting slots are communicated with the cover slot. The rear end of each inserting slot is provided with a tail chamber penetrating through the exterior of the rear end of the body. The body is internally provided with sliding chambers which are correspondingly arranged at the left and right sides in the rear end wall of the assembly chamber. Open slots are arranged in the inner wall of the body between the sliding chambers and the inserting slots to make the sliding chambers and the inserting slots communicated. A motor is arranged between the two sliding chambers. The iris recognition instrument of the invention has the advantages of simple overall structure, low manufacturing cost, convenient and fast assembly and disassembly, and safe and stable overall structure, and is suitable for popularization and use.