164results about How to "Fast assembly" patented technology

The utility model discloses a steel platform construction device for high-altitude medium-and-small-span suspended structure construction. The steel platform construction device comprises a steel platform body structure system, a connecting system, a lower supporting system and a dismounting system. The steel platform main body structure system is composed of I-shaped steel girders and channel steel coupling beams, the channel steel coupling beams are placed on the I-shaped steel girders after the I-shaped steel girders are arranged according to a certain interval, and the I-shaped steel girders are fixedly connected into a whole through welding; according to the system, an I-shaped steel main beam is flatly placed on a floor structure, the two ends of the I-shaped steel main beam are connected through U-shaped rings, or the I-shaped steel main beam is connected with the outer side of a cavity edge beam and a column through friction type high-strength bolts; the lower support system is an inclined lower support arranged on each of the two sides of the I-shaped steel main beam; the dismounting system is composed of a guide rail frame, rolling bodies and movable and fixed pulley blocks. According to the utility model, the construction of high-altitude holes, corridors and the like with the span within 10m can be solved.

The integrated adsorption tower of the oxygen generator comprises an adsorption tower main body, a gas inlet integrated cover part and a gas outlet integrated cover part which are arranged at the two ends of the adsorption tower main body, and a reversing valve arranged on the gas inlet integrated cover part, two molecular sieve cylinders and two air storage tanks are arranged in the adsorption tower main body, the nitrogen removal and noise reduction cylinder is positioned in the middles of the two molecular sieve cylinders and the two air storage tanks, the molecular sieve cylinders are communicated with the air storage tanks, the molecular sieve cylinders can be communicated with the nitrogen removal and noise reduction cylinder under the control of a reversing valve, the reversing valve controls air to alternately enter and remove nitrogen, the molecular sieve cylinders are filled with adsorbents, and the adsorbents are communicated with the nitrogen removal and noise reduction cylinder. The two molecular sieve barrels are integrated on one adsorption tower, so that the assembly difficulty is reduced, the production efficiency is improved, the space utilization rate is improved, and the nitrogen discharge noise is reduced by arranging the silencing barrel.

The utility model relates to an assembly workbench which is characterized by comprising a supporting frame, a supporting plate, a damping module and a tool box. The supporting plate is arranged on the inner side of the supporting frame; the tool box and the damping module are arranged on the two opposite sides of the supporting frame correspondingly. The damping module comprises a supporting block and a damping plate; the supporting block is arranged between the supporting frame and the damping plate. The supporting frame is suitable for supporting the fan cover. The supporting plate can reinforce the supporting frame and can also be used for containing work supplies, the damping module can disperse external force applied to the fan cover to all bearing faces, the situation that the assembling quality is affected by local deformation of the fan cover generated by knocking is avoided, and the protection effect is achieved. The device is simple in structure, high in practicability, convenient to operate and good in safety, compared with previous operation on a wooden box, the safety is high, the stability of a fan cover is high, bearing points are arranged on the periphery, the fan cover can be turned over at any time, the assembly speed is increased, the production efficiency is improved, and the quality is greatly improved.

The invention discloses a connector with a rear-mounted TPA assembly and an assembling method thereof, the connector comprises a connector body, a TPA assembly and a terminal, and the TPA assembly is implanted into an inner cavity in the direction from the tail end to the head end of the connector body so as to effectively simplify the difficulty of assembling and disassembling operation between the TPA assembly and the connector body. The invention further discloses an assembling method of the connector with the rear-mounted TPA assembly, which is used for reducing and further reducing the mounting and dismounting difficulty of the TPA assembly, reducing the dependence of assembling the connector on an auxiliary mounting tool, improving the assembling accuracy of the connector and reducing the loss caused by improper assembling.

The utility model belongs to the field of power adapter assembly, and discloses an assembly device for a power adapter, which comprises a feeding device for conveying a base of the power adapter to move and a loading device for adsorbing and grabbing a shell of the power adapter for installation, the rack device is arranged in the middle of the feeding device and used for supporting reciprocating motion to synchronously adsorb and install a power adapter shell, and the two feeding devices are symmetrically installed at the top of the rack device; the rack device comprises a second support, and a supporting plate is arranged in the middle of the second support. According to the assembling device for the power adapter, through synchronous adsorption and installation of the power adapter shell, the preparation time is shortened, and the assembling speed of the power adapter is increased; by means of the arrangement of reciprocating movement and outward extension, it is guaranteed that the power adapter shell is smoothly adsorbed and installed at the same time; and through the arrangement that the power adapter shell is grabbed through vacuum adsorption, damage to the power adapter shell is reduced.

The invention discloses a fast-assembly lifting table which comprises a table board, a cross beam assembly, lifting table legs and a locking mechanism, the cross beam assembly comprises a first cross beam and a second cross beam, and the two cross beams can move relatively and are used for adjusting the distance of installation space between the two cross beams; a motor shell at the top end of the lifting table leg is accommodated in the mounting space; the locking mechanism comprises a locking rod and a cam assembly, one end of the locking rod is connected with the first cross beam, the other end of the locking rod penetrates through the second cross beam and then is connected with the cam assembly, and a cam part abuts against the outer side wall of the second cross beam; and at the locking position, the cam part extrudes the second cross beam inwards, so that the two cross beams move in opposite directions to press the motor shell in the mounting space. According to the fast-assembly lifting table, tools are not needed, the table legs are easy and convenient to assemble, the assembly speed is high, and the installation precision is high.

The invention discloses an efficient Catmull-Clark subdivision volume isogeometric analysis method, which comprises the following steps of: S1, for a CC subdivision volume initial grid input file in an. Inp format, reading geometric information, topological information, load information, constraint information and material information of a CC subdivision volume grid through a data structure; s2, applying a Catmull-Clark subdivision scheme to subdivide the initial grid of the CC subdivision body into a hierarchy suitable for analysis, and calculating an equivalent constraint and an equivalent load; s3, for each hexahedron unit in the subdivided CC subdivision body grid, calculating a CC subdivision body unit primary function of the hexahedron unit according to grid information and unit mapping; s4, solving a stiffness matrix of the subdivided CC subdivided volume unit according to a primary function calculation method of the CC subdivided volume unit; and S5, assembling the CC subdivision volume element stiffness matrix and the linear equation set to obtain a displacement field U of all degrees of freedom, and writing the displacement field U into a vtk file to visualize the displacement field. According to the method, the physical simulation speed of the CC subdivision body is improved on the premise of ensuring the precision.

The utility model provides a kind of buckle structure, including upper cover, lower shell and silica gel sleeve, lower shell is placed in silica gel sleeve, and annular sealing ring is set in the silica gel sleeve of lower shell upper end, and the lower end of upper cover is provided with elastic vertical beam along annular interval, and elastic vertical beam is placed in lower shell, and with the inside sealing of annular sealing ring, elastic vertical beam is spaced apart from the inner wall of lower shell, and the interval is stress release cavity, the outside of part elastic vertical beam is provided with clasp, and lower shell is provided with the clamping groove matched with clasp.The utility model is fast in assembly rate, not easy to loosen under vibration environment, easy to disassemble, and repeated disassembly is not easy to cause sealing surface wear.

This invention discloses an automatic magnetic steel dispensing and assembly equipment, comprising a frame. The frame is characterized by a rotating table mounted at the top center, with multiple workstations evenly distributed on the rotating table. Each workstation has a first placement platform and a second placement platform. The frame also includes a magnetic steel feeding mechanism, a cylinder liner feeding mechanism, a laser cleaning mechanism, a magnetic steel flipping mechanism, a dispensing visual inspection mechanism, an automatic glue application mechanism, a finished product transfer mechanism, a concentricity visual inspection mechanism, and a discharge mechanism. This invention can replace manual labor for magnetic steel dispensing and assembly, thereby reducing operator involvement, alleviating operator workload, and increasing assembly speed.

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a wiring terminal plug-in structure and a circuit breaker, and the wiring terminal plug-in structure comprises a static terminal and a moving terminal. The static terminal comprises a first shell and a wiring unit arranged in the first shell, two opposite sides of the first shell are respectively provided with a wiring port and a terminal socket, and the wiring unit is provided with an elastic wire clamping part and a contact cavity; the elastic wire clamping part is used for clamping an external lead passing through the wiring port and is in conductive contact with the external lead; the moving terminal can pass through the terminal jack and can be conductively plugged in the contact cavity. The wiring terminal plugging structure is of a two-section structure, so that the use space required by the wiring terminal plugging structure can be greatly reduced, the manufacturing process is simplified, and the production cost is reduced. The wiring unit of the static terminal can clamp the external lead on one hand and can be connected with the internal movable terminal on the other hand, the manufacturing process and required materials can be simplified, and the wiring efficiency can be improved in the mode that the wiring unit and the external lead are elastically clamped.

The present invention relates to a combined multi-user water meter, comprising a plurality of detachably connected base meters, each base meter comprising a meter case, and one, two or more water pipes integrally formed with the meter case are arranged in the meter case; one end of the meter case is detachably connected to a water distribution pipe, and a first plug corresponding to each water distribution pipe is arranged on the water distribution pipe, and each first plug is correspondingly connected to and connected with a water distribution pipe; the other end of the meter case is detachably connected to a water pipe connection seat, and a second plug corresponding to each water distribution pipe is arranged on the water pipe connection seat, and each second plug is correspondingly connected to and connected with a water distribution pipe, and each second plug is correspondingly connected to a water pipe joint, and each water pipe joint is connected to a household water pipe; the two meter cases of any two adjacent base meters are detachably connected, and the two water distribution pipes of any two adjacent base meters are detachably connected. The combination of multiple base meters makes the overall structure more compact and saves installation space.

The invention discloses an assembly type steel structure supporting column which comprises a supporting column body, a butt joint block and a butt joint rod are arranged in the supporting column body, a spraying mechanism is arranged on the butt joint block, a butt joint hole is formed in the bottom of the butt joint block, a reaction chamber is arranged in the butt joint block, and a medicament chamber and a sliding hole are formed between the butt joint hole and the reaction chamber. A solid raw material and a medicine pushing piston are arranged in the medicine chamber, a liquid raw material is arranged in the reaction chamber, a plug pin in sliding sealing connection is arranged in the sliding hole, the butt-joint blocks are detachably installed at the bottom and the top of the supporting column body, a pin hole matched with the plug pin is formed in the side face of the butt-joint rod, and the butt-joint rod is inserted into the butt-joint hole to be in sliding connection with the butt-joint blocks. The spraying mechanism comprises a sealing disc, a feeding pipe, a rotating spraying head and stirring blades. The steel structure supporting column has the advantages of being convenient and firm to install, and the problems that in the prior art, when a steel structure supporting column is installed, a large number of tools need to be used, and butt joint is difficult are solved.

The utility model discloses a connecting structure of a table leg and a table, which comprises a lock rod arranged on one of the table leg and the table leg and a lock hole matched and inserted with the lock rod on the other one of the table leg and the table leg, and the lock rod is arranged in the lock hole and can move between an unlocking position and a locking position in the lock hole; one of the table legs and the table legs is rotatably connected with a cam, the other one of the table legs and the table legs is provided with a positioning hole matched with the cam in an inserted mode, the cam is rotatably switched between a first position and a second position, when the cam rotates to the first position, the convex portion of the cam extrudes the inner wall of the positioning hole so that the lock rod can move to the locking position of the lock hole, and the table legs and the table legs are locked and fixed. According to the connecting structure of the table leg and the table, the bolts do not need to be fastened or loosened through tools, assembling is easy and convenient, labor is saved, and the requirement for rapid assembling of a user can be met.

The utility model relates to a multidirectional wiring harness switching box, which comprises a base and a top cover, a stud is arranged in the center of the top of the base, a nut is screwed on the stud, and a plurality of base wire harness guide structures are uniformly arranged on the edge of the top of the base; the top cover is of an upward concave structure, a plurality of top cover wire harness guide structures are uniformly arranged on the edge of the bottom of the top cover, the base wire harness guide structures and the top cover wire harness guide structures are correspondingly arranged, and the base and the top cover are detachably connected; the utility model has the advantages that the wire harness loop length can be shortened, the assembly convenience is improved, and the wire harness arrangement space is reduced.

The invention belongs to the technical field of concrete molds, and particularly relates to a concrete mold which comprises a bottom mold plate, a first outer mold plate and a second outer mold plate are arranged on the upper surface of the bottom mold plate, a fixed cross beam is connected to the top of the first outer mold plate and the top of the second outer mold plate, and an inner mold plate is connected to the bottom side of the fixed cross beam. A first mold hole is formed in the surface of the first outer mold plate, a second mold hole is formed in the surface of the inner mold plate, a transverse plate is connected to the inner wall of the inner mold plate, and a first threaded pipe penetrates through the interior of the transverse plate. According to the device, an embedded mold cylinder is inserted into a first mold hole and a second mold hole, when the embedded mold cylinder drives a threaded rod to move to a pipe opening of a first threaded pipe through a longitudinal plate and a first bearing, the threaded rod can rotate and move to the interior of the first threaded pipe, in this way, the position of the embedded mold cylinder can be fixed, and therefore reserved holes can be formed; the embedded mold cylinder is low in production process requirement and can adapt to pipe wall thicknesses of different concrete prefabricated pipelines.

The invention provides a semi-automatic assembling and detecting machine for vacuum electronic pump parts, and relates to the field of automobile part machining equipment.The semi-automatic assembling and detecting machine for the vacuum electronic pump parts is provided with a placement box, an air cylinder and a fixing assembly, the placement box is used for transporting a stator and sleeving the stator outside a rotor, a traditional manual placement mode is replaced, the assembling speed of an electronic pump is increased, and the efficiency is improved. A laser detector is arranged at the bottom of the air cylinder, the top point of the inner wall of the stator is detected through laser, and whether the stator placing position is deviated or not is judged according to whether the top point of the inner wall of the stator touches the laser or not. According to the semi-automatic assembling and detecting machine for the vacuum electronic pump parts, an exhaust disc and a stator are arranged on an electronic pump body, the stator is sleeved with a rotor, the exhaust disc covers the stator, the semi-automatic assembling and detecting machine comprises a base, a circle center hole is formed in the center of the top of the base, the lower end of the electronic pump body is inserted into the center hole of the base, and a containing box and an air cylinder are arranged above the base in a sliding fit mode.

The utility model relates to the technical field of refrigeration equipment, and discloses a drainage assembly for a refrigerator, which comprises an external drainage pipe and an evaporating dish, wherein the external drain pipe comprises a pipe body and a first connecting part arranged on the pipe body, the evaporating dish comprises a first matching part, and the first connecting part is connected with the first matching part, so that the external drain pipe is integrated on the evaporating dish. The first matching part is matched with the first connecting part, so that the external drain pipe is integrally arranged on the evaporating dish and is mounted on the box body together with the bottom cooling assembly, the external drain pipe does not need to be mounted after a compressor pipe is welded in the later period, the requirement on an operation space is reduced, and the influence of small compressor cabin space on the mounting of the external drain pipe is reduced; the assembly difficulty is reduced and the assembly speed is improved. The utility model further discloses the refrigerator.

The invention discloses an ultra-wideband low-profile extensible DBF array antenna and an implementation method thereof. The array antenna comprises a 4 * 4 array antenna module; the radio frequency front end module is connected with the array antenna module; the radio frequency front-end module comprises four groups of integrated packaging modules, and each group of integrated packaging modules is connected with four array antennas; the integrated packaging module comprises an amplitude-phase multifunctional chip, an up-down conversion chip, an ADC / DA chip, a PA / LNA and a switch chip. And the multilayer printed circuit is connected with the radio frequency front-end module. According to the invention, a mounting mode of grid array packaging is adopted, vertical interconnection between the antenna and the T / R assembly is realized, and the antenna has the advantages of fast assembling speed, low cost and strong expansibility. Meanwhile, the design significantly reduces the size of the antenna, reduces the manufacturing cost, and greatly reduces the insertion loss in signal transmission. In addition, an extensible digital interface is adopted, design and extension of a digital processing multilayer board are facilitated, and adaptability and flexibility of the system are further improved.

The invention relates to a cast-in-place box girder construction technology, which belongs to the technical field of box girder construction, and comprises the following steps: S1, bracket cushion layer construction; s2, erecting a bracket; s3, pre-pressing the support; s4, side formworks are installed, and top plate concrete is poured; s5, concrete curing; s6, pre-stress construction is conducted; and S7, the formwork and the support are dismantled. The method has the effect of effectively improving the construction efficiency and safety of the cast-in-place box girder.

The utility model discloses a surge protector convenient for wiring, which is applied to the field of surge protectors and comprises a lower shell and an upper shell, and metal connecting blocks are symmetrically clamped between the lower shell and the upper shell. According to the utility model, the sliding groove is formed in the upper shell, when the sliding block in the sliding groove moves, the pressing block is driven to move downwards, and when an external wire enters the protector through the interfaces at the two ends of the protector, the external wire can be firmly pressed on the conductive block by the pressing block, and the external wire does not need to be screwed and fixed by using a bolt; the inner groove is formed in the upper shell, after the limiting block is pressed to be shrunk into the inner groove and the lower shell and the upper shell are buckled, the two limiting frames on the lower shell can be clamped on the two sides of the upper shell, and after the limiting block is loosened, the limiting block and the limiting frames are clamped with each other; therefore, the lower shell and the upper shell of the surge protector are limited, bolts do not need to be used, and the assembling speed is increased.

The utility model discloses a seat assembly and a vehicle, and relates to the technical field of vehicles. The seat assembly comprises a mounting bracket, a back plate component, a supporting component and an air bag component, wherein the mounting bracket comprises a first connecting part and a first main body part; the first main body part is respectively connected with the supporting component and the air bag component; the back plate assembly comprises a back plate main body and an adapter bracket connected to the back plate main body, and the adapter bracket is provided with a second connecting part; and the mounting bracket is configured to be connected with the adapter bracket through the matching of the first connecting part and the second connecting part, so that the supporting assembly and the airbag assembly are mounted on the back plate main body. By connecting the adapter bracket to the backboard main body, the backboard main body can be mechanically connected with the air bag assembly and the supporting assembly without damaging the mechanical structure of the backboard main body, and the air bag assembly and the supporting assembly are uniformly connected to the mounting bracket and then assembled to the backboard main body, so that the assembling efficiency is greatly improved.

The utility model discloses a prefabricated assembly type beam plate. The prefabricated assembly type beam plate comprises a plurality of stand columns, two first cross beams and two second cross beams are installed between the stand columns, the two first cross beams and the two second cross beams form a floor, and a plurality of prefabricated beam plates are installed on the floor; the prefabricated beam plate comprises a frame, structural ribs are arranged in the frame, concrete blocks are poured in the frame, clamping connectors are installed on the periphery of the frame and the first cross beams, and first clamping grooves matched with the clamping connectors are formed in the two sides of the frame. According to the prefabricated assembly type beam plate, the stand columns, the first cross beams, the second cross beams and the prefabricated beam plates are arranged, the clamping connectors are connected with the first clamping grooves or the second clamping grooves in a clamped mode, the prefabricated beam plates are rapidly assembled, the prefabricated beam plates, the first cross beams and the second cross beams are rapidly assembled, and the assembly speed of a building is greatly increased; and rapid construction and use of a building are facilitated.

The invention discloses a non-disassembly double-sided composite shear wall panel, a composite shear wall and a construction method thereof, comprising an inner wall panel and an outer wall panel; an inner cavity is provided between the inner wall panel and the outer wall panel, a steel bar truss is installed in the inner cavity, and the inner wall panel and the outer wall panel are cement boards; the inner wall panel and the outer wall panel are provided with tension bolt holes; the two sides of the steel bar truss are respectively assembled and connected with the inner and outer wall panels, and the steel bar truss comprises a plurality of longitudinal bars, namely the first longitudinal bar, the first longitudinal bar and the second longitudinal bar extending from the upper and lower ends of the cement board; a serpentine connecting bar is connected between the first longitudinal bar and the second longitudinal bar symmetrical to the first longitudinal bar; and transverse bar penetration holes are provided on the first longitudinal bar and the second longitudinal bar. The invention effectively solves the problems of long maintenance period of precast concrete wall panels, low production efficiency, large occupied production site, and great difficulty and safety in connecting and grouting the upper and lower steel bar sleeves of precast concrete wall panels; the inner wall panels and the outer wall panels adopt cement boards, which reduces product quality and improves production efficiency.

The present invention relates to a sliding fixing device for a fuel cell stack, comprising a base and a plurality of stack brackets, wherein each stack bracket is fixedly connected to the base, the stack bracket is fixedly connected to a fixed plate of the fuel cell stack, the base comprises a fixed portion and a sliding portion, the fixed portion is fixedly connected to a PACK bottom plate of the fuel cell stack, and the sliding portion is slidably connected to the fixed portion. Compared with the prior art, in the present invention, the sliding range of the sliding portion and the fixed portion is determined according to the maximum dimensional difference of the thermal expansion and contraction of the stack, and the dimensional deviation caused by the thermal expansion and contraction of the bipolar plate of the stack at high and low temperatures is offset by the relative sliding of the sliding portion and the fixed portion, and the problem of uneven stress on the overall structure of the stack module is effectively avoided, and the structure is simple and the cost is low.

The invention discloses an automatic filter assembling machine which solves the problems that cover conveying time is long, colloid is cooled and solidified, and subsequent assembling adhesion is influenced, the automatic filter assembling machine comprises a machine body, two equipment assembling assemblies are arranged in the machine body side by side, and each equipment assembling assembly comprises a rotating table rotationally installed on the machine body; a rotating driving motor is arranged at the bottom end of the rotating table, a cover feeding machine used for feeding a cover is arranged at one end of the rotating table, a compaction assembly mechanism used for compaction assembly is arranged at the other end of the rotating table, four stations are arranged at the top end of the rotating table at equal angles, and each station is composed of two limiting clamping pieces. The limiting clamping piece is composed of an upper clamping limiting assembly and a lower supporting limiting assembly. In the working process, in the process that the cover body and the filter element are compacted through the arranged pressing plate, the cover body is firstly heated, so that colloid is convenient to unfold and adhere, and then the cover body is cooled, so that the colloid is convenient to solidify and adhere.

This invention relates to a wall switch assembly machine, comprising a base and a bracket mounted on the base. A first positioning mold and a spring positioning mechanism are mounted on the base. A feeding mechanism and a pressing mechanism are connected to the bracket. The feeding mechanism is positioned above the first positioning mold. Two spring positioning mechanisms are symmetrically arranged at the left and right ends of the first positioning mold. The pressing mechanism is suspended above the first positioning mold. This invention automates the assembly process of the switch base and button panel of the wall switch through the coordinated operation of these mechanisms, reducing manual operation and increasing assembly speed. The positioning of the switch base by the first positioning mold, the positioning and clamping of the spring by the spring positioning mechanism, the positioning of the button panel by the feeding mechanism, and the precise pressing of the pressing mechanism ensure accurate spring positioning and good engagement between the button panel and the switch base, reducing product defect rates and improving product reliability and stability.

The utility model discloses an adjustable supporting arm structure for an electric tricycle, and relates to the technical field of tricycle supporting arms, the adjustable supporting arm structure comprises a fixing arm, the outer wall of the fixing arm is fixedly connected with a connecting structure, the inner wall of the connecting structure is slidably connected with a fixing bolt, and the outer wall of the fixing bolt is in threaded connection with a locking nut. A telescopic cavity is slidably connected to the outer wall of the fixed arm, a telescopic arm is slidably connected to the outer wall of the telescopic cavity, and an adjusting structure is fixedly connected to the outer wall of the telescopic arm. And long-distance adjustment depends on sliding adjustment of the telescopic arm and the telescopic cavity, and angle adjustment depends on cooperation of various structures, so that different vehicle types can be adapted, the assembly problem is effectively solved, the assembly speed is increased, the rework rate is reduced, and the production process is optimized.

The utility model discloses a rotary table oil way distributor which comprises an oil way connecting plate, a plurality of first oil ways are distributed in the oil way connecting plate, and the first oil ways are used for oil feeding. The mandrel is arranged on the oil way connecting plate, a plurality of second oil ways communicated with the first oil way in the axial direction are arranged in the mandrel, and a plurality of third oil ways communicated with the second oil ways in the radial direction are arranged in the mandrel; the mandrel is arranged in the central hollow structure of the sleeve in a sleeved mode through the exhaust holes in the end face of the sleeve, and a sealing structure is arranged between the mandrel and the sleeve; a plurality of fourth oil ways communicated with the third oil way in the radial direction are arranged in the side wall of the sleeve, a plurality of fifth oil ways communicated with the fourth oil ways in the axial direction are arranged in the side wall of the sleeve, and the fifth oil ways are used for oil outlet. By optimizing the position of the exhaust hole, the dual-seal design and the mounting structure, the sealing performance, the maintenance convenience and the assembly efficiency are remarkably improved.

The battery stacking structure comprises battery cells, and a plurality of battery cells are arranged and connected to form a battery module; pole columns of the battery cells are arranged upwards, and a buffer layer is filled between the adjacent battery cells. According to the utility model, on one hand, the pole of the battery cell is arranged upwards, so that electrolyte is precipitated to the bottom of the battery cell under the action of gravity, and the cycle life of the battery cell is greatly prolonged; and on the other hand, the battery modules are fixed in the box body and then stacked through the box body, so that the stacking speed is greatly improved, the safety is good, the reliability is high, and centralized management is facilitated.

A tightening and feeding synchronizing mechanism device comprises a supporting frame, a lifting assembly and a feeding device. The lifting assembly comprises a lifting frame and a lifting air cylinder. The feeding device comprises a nail feeding part, a nail receiving part and a connecting part. The nail feeding part comprises a shell, a claw plate, a stretching plate and a driving air cylinder. The nail receiving part comprises a nail receiving pipe, a nail receiving cover and a nail discharging pipe. The connecting part comprises a sealing sleeve, a sealing rod, a nail suction pipe and a screwdriver bit. The feeding device is arranged. The nail receiving part comprises a nail receiving pipe, a nail receiving cover and a nail discharging pipe, wherein one end of the nail receiving pipe is movably arranged in the nail discharging groove, the nail receiving cover covers the nail receiving pipe, and the nail discharging pipe is inserted into the nail receiving cover and communicated with the nail receiving pipe. And a screw is pre-stored in the screw receiving pipe through the screw feeding pipe, so that the device can pre-store a screw during nailing, the assembling speed is high, and high practicability is achieved.