38results about How to "Convenient card position" patented technology

The invention relates to a device for attaching double-faced adhesive tape to a cloth curtain. The device comprises a rack and a press fit mechanism arranged on the rack. The press fit mechanism comprises a press fit cylinder which is perpendicularly arranged on the rack, and a cloth curtain pressing plate which is arranged at the bottom end of the press fit cylinder. The device is characterized in that a positioning mechanism is arranged on one side of the cloth curtain pressing plate, wherein the positioning mechanism comprises a supporting shaft which is longitudinally arranged on the rack, and a movable clamping piece which is arranged between the supporting shaft and the cloth curtain pressing plate; a feeding mechanism is arranged on the side, facing the press fit mechanism, of the positioning mechanism, wherein the feeding mechanism comprises a first clamping piece which can move transversely in the extension direction of the cloth curtain pressing plate. The device further comprises a cutting mechanism, wherein the cutting mechanism comprises a cutting piece which is arranged between the movable clamping piece and the cloth curtain pressing plate, and two second clamping pieces which are arranged on the two transverse sides of the cloth curtain pressing plate respectively, and the cutting piece comprises a cutter which can move in a vertical plane to cut the adhesive tape; the movable clamping piece, the first clamping piece and the second clamping pieces can clamp and release the adhesive tape respectively. The device is good in adhesive tape attaching quality and high in adhesive tape attaching efficiency.

The invention discloses a proton exchange membrane fuel cell stack steel strip fastening device. The device structurally comprises a rear end plate, a rear end copper bar, a graphite plate membrane electrode assembly, a front end plate, disc springs and a disc spring pressing plate sequentially from rear to front, U-shaped steel strips are used to lock the above parts, a certain arc surface is designed on the rear end plate, a groove is formed at a position, where each steel strip is pasted, of the rear end plate in order to enable the corresponding steel strip to apply binding force to the graphite plate membrane electrode assembly more uniformly, and convenience is brought to clamping the steel strips; a clamping groove is formed in the front end plate, the disc spring pressing plate can be inserted into the clamping groove in order to prevent torsion of the steel strips when first screws is rotated into cross rods, and the steel strips are enabled not to contact with a graphite plate. When the graphite plate membrane electrode assembly becomes shorter, the disc springs loosen by a certain length to offset length change of the graphite plate membrane electrode assembly; the graphite plate membrane electrode assembly becomes longer, the disc springs are compressed to offset length change of the graphite plate membrane electrode assembly, and performance of a cell stack is ensured not to be affected greatly.

The invention discloses an integrated efficient hot saw device which comprises a device body. The device body comprises a base, and a rod feeding mechanism, a sizing mechanism, a rod pressing mechanism, a saw cutting mechanism and a rod discharging mechanism are arranged on the base; the rod feeding mechanism is located on one side of the saw cutting mechanism, the rod discharging mechanism is located on one side of the sizing mechanism, and the rod pressing mechanism is located between the sizing mechanism and the rod discharging mechanism, so that the integrated efficient hot saw device canadapt to cutting requirements under different environments; in addition, the rod discharging mechanism enables a rod discharging cylinder seat to be matched with a rod discharging frame for discharging materials under the effect of a fourth air cylinder under the condition that a third air cylinder is matched with a lifting connection rod, so that the improvement of the material cutting efficiencyis facilitated through the integrated design; and additionally, the cost is reduced, the requirements under the different environments can be met, and use limitation of the device is reduced.

The invention discloses a pitch vernier caliper. The pitch vernier caliper comprises a caliper body (1) and a vernier (2), wherein the vernier (2) is mounted on the caliper body (1) and can slide along the caliper body (1); scales are formed on the caliper body (1); a fastening screw (3) is mounted at the upper part of the vernier (2); the lower part of the vernier (2) is fixedly connected with a measuring jaw A (4); scales corresponding to the scales on the caliper body (1) are formed on the vernier (2). The pitch vernier caliper is characterized in that the lower left side of the caliper body (1) is fixedly connected with a measuring jaw B (8); a blind hole (9) is formed in the lower part of the measuring jaw B (8); a threaded hole (7) is formed in the left side of the measuring jaw B (8); the blind hole (9) is communicated with the threaded hole (7); a measuring needle (5) is mounted in the blind hole (9) in a matched manner; a screw (6) is mounted in the threaded hole (7). The pitch vernier caliper is simple in structure, convenient, feasible, and accurate in measurement.

The invention provides a self-cleaning multifunctional mop and belongs to the field of cleaning products. The invention specifically provides a multi-purpose mop having a hand wash-free function. The self-cleaning multifunctional mop truly solves the problem of single functions of mops and solves the problem that a mop can only use mop cloths or a collodion head and is incapable of switching of the mop cloths and the collodion head. The self-cleaning multifunctional mop comprises a mop rod, a mop plate, a water squeezing component and a mop connector. The front side of the mop plate is provided with a wiping medium for mopping; the two sides of the mop plate are provided with a brush and a water-scraping soft rubber strip. The mop connector is uniquely designed to consist of a lower connector, an upper connector and a plug pin, wherein the upper connector and the lower connector can be located as required so that the rotating angle of the mop is controlled. The self-cleaning multifunctional mop truly integrates the functions of sweeping, mopping, water scraping and self-cleaning, so that the functions of the mop are extended; the mop is convenient and flexible to use, low in manufacture cost, and is firm and durable.

The invention discloses a hot melting damping fin punching and cutting device and a punching method thereof, and belongs to the technical field of vehicle damping. The hot melting damping fin punching and cutting device comprises a punching and cutting device body, and a special conveying belt penetrating through the punching and cutting device body for conveying hot melting damping fins, wherein the punching and cutting device body comprises two support tables on two sides of the special conveying belt, punching tables flatly placed and fixed on the side surfaces of the two support tables, and lifting height adjusting mechanisms; and the punching tables are connected with cutter molds detachably mounted at the bottoms of the punching tables through the lifting height adjusting mechanisms. The punching heights and thicknesses of the cutter molds are adaptively adjusted through the lifting height adjusting mechanisms; and after the hot melting damping fins are effected, the lifting travels can be shortened, and the damage of the conveying belt due to excessive punching is prevented. The device solves the problems of bad burrs in cutting of the damping fins and short service life of the conveying belt.

The invention relates to an automatic quick punch press for an aluminum alloy building template. The punch press comprises a working platform, wherein a workpiece punching channel is formed in the working platform, movable adjusting devices capable of moving in the horizontal direction of the workpiece punching channel are arranged on the two sides of the workpiece punching channel respectively, and punching clamp devices are arranged on the two movable adjusting devices respectively; punching devices are arranged on the two punching clamp devices respectively, punch pins of the two punching devices both face the workpiece punching channel, and workpieces are punched by the two punching devices through the punch pins; a roller device capable of stretching and retracting in the vertical direction is also arranged in the workpiece punching channel and used for pushing the workpieces in the workpiece punching channel, a machine frame is arranged above the workpiece punching channel, a clamping device capable of moving along the workpiece punching channel is arranged on the machine frame, and the workpieces can be clamped and moved by the clamping device into the workpiece punching channel. Compared with the prior art, the punch press has the advantages that the workpieces can be punched automatically, the safety factor is high, machining precision is high, and production efficiency is high.

The invention discloses a magnetic attraction type damping fin magnetizing and punching device and a production technology thereof, and belongs to the technical field of automobile damping. The magnetic attraction type damping fin magnetizing and punching device comprises a magnetizing mechanism and a punching and cutting mechanism which are arranged according to working procedures, wherein the magnetizing mechanism comprises a magnetizing frame, a magnetizing conveyor belt, a magnetizing roller and a pressing plate; the two ends of the magnetizing roller are detachably and fixedly connected with the magnetizing frame; the two side ends of the pressing plate are detachably and fixedly connected with the magnetizing frame; the punching and cutting mechanism comprises two supporting tables for punching the two sides of the conveyor belt, a punching table and a lifting type height adjusting mechanism which are flatly placed and fixed to the inner side faces of the two supporting tables and a punching conveyor belt penetrating through the punching and cutting mechanism to convey magnetic attraction type damping fins. The problems that even though an asphalt type damping plate is low in cost, more harmful gas is produced, the substitute cost is high, the effective service life is short, dehydration is not performed in time, multiple burrs are formed during cutting, and the service life of the conveyor belt is short are solved.

The invention discloses a hot-melt damping fin cooling and punching device and a production method thereof and belongs to the technical field of car damping. The hot-melt damping fin cooling and punching device comprises an air cooling mechanism, a punching shearing device body and a dedicated conveying belt which penetrates the punching shearing device body to convey hot-melt damping fins. The air cooling mechanism comprises an air cooling box, an air blower and an air cooling conveying belt. The air blower is fixed into the air cooling box and covers over the air cooling conveying belt. The tail end of the air cooling conveying belt is connected with the dedicated conveying belt through the hot-melt damping fins in the conveying process, and the hot-melt damping fins are conveyed to the dedicated conveying belt. The punching shearing device body comprises supports on the two sides of the dedicated conveying belt, punching tables which are horizontally arranged and fixed to the side faces of the two supports, and lifting type height adjusting mechanisms. The punching tables are connected with cutting dies detachably installed at the bottoms of the punching tables through the lifting type height adjusting mechanisms. Through the hot-melt damping fin cooling and punching device and the production method thereof, the problems that too much burrs are generated on the hot-melt damping fins during shearing, and the service life of the conveying belts is short are solved.

The invention discloses a mechanical part grinding device comprising a base. The top end of the base is provided with a plurality of support columns of which the top ends are connected to an operatingboard arranged horizontally, and the operating board is internally provided with a feed mechanism; and the both sides of the top end of the operating board are provided with support arms arranged symmetrically, and sliding cavities are arranged in the sides, close to each other, of the support arms. The mechanical part grinding device has the beneficial effects that a second rotating motor is coordinated with a conveyor belt driven by a driving wheel, thereby facilitating feeding of materials, while a first baffle facilitates catching of the materials under the effect that a screw rod is coordinated with a spiral block; in addition, a telescopic cylinder is coordinated with a grinding plate, thereby facilitating vertical movement of a grinding block, while a rotating rod driven by a firstrotating motor is coordinated with a sliding rod, thereby facilitating horizontal movement of a sliding plate coordinated with the grinding block, so that the grinding effect is good, and the operation is simple; and the mechanical part grinding device is applicable for grinding different parts, and the harm to workers is reduced.

The invention discloses a seat cloth assembling device and a assembling method thereof and belongs to the technical field of processing of leisure furniture. The seat cloth assembling device comprisesa main frame, an upper mould, a lower mould and a rod mould; the main frame is formed by connection of two left-right frames through an upper frame connecting rod and a lower frame connecting rod; anupper platform is arranged on the front upper portion of the main frame, and a middle-grooved platform is arranged in the middle; an inverted cylinder is arranged on the upper platform reversely, andthe telescopic of the inverted cylinder penetrates the upper platform downwardly to be connected with the upper mould; the lower mould is buckled on the middle-groove platform in a T-shaped manner and is vertically and fittingly arranged with the upper mould; the rod module and the lower mould are horizontally and fittingly arranged and move horizontally under driving of an telescopic rod of a horizontal cylinder fixed on the middle-grooved platform, and cloth is pressed and stretched through synergistic effect of the upper mould, the lower mould and the rod mould to be fastened. By the arrangement, problems that manual cloth stretching is time consuming and labor consuming, low in labor efficiency and easy to cause product scrap or secondary operation are solved.

The invention discloses a bed back assembling device and an assembling method thereof, belonging to the technical field of leisure furniture processing. The bed back assembling device comprises an upper frame, a lower frame, an upper mold, a lower mold and a pull rod mold which are of up-down structures and fixedly connected one another, wherein a reversed air cylinder is fixed to the front upperpart of the upper frame and is detachably connected to the upper mold through a telescopic thereof downward; the lower mold and the upper mold are vertically matched and are detachably fixed to the upper end surface of the lower frame; the pull rod mold and the lower mold are arranged in the horizontal direction in a matched manner and the telescopic rod is driven by means of a horizontal air cylinder fixed to the upper end surface of the lower frame; by means of the synergistic effect of the upper mold, the lower mold and the pull rod mold, cloth is compressed and stretched so as to be fixed,and leisure bed back cloth stretched is inserted into a rod threading piece, so that the bed back assembling device is convenient to operate and the cloth is compact. The bed back assembling device solves the problems that in the prior art, it is time- and labor-wasting to draw the cloth manually, low in labor efficiency and easy to scrap or secondarily process a product when a bed back is assembled.

The invention belongs to the technical field of sensor structures, aims to solve the technical problem that the optimal working temperatures of a pressure-sensitive element and a temperature-sensitive element are inconsistent in the prior art, and provides a temperature and pressure integrated sensor which comprises an upper shell, a lower shell, a supporting frame, a circuit board and a plastic shell, the supporting frame is arranged in the upper shell, the circuit board is arranged on the supporting frame, the plastic shell is arranged above the supporting frame and connected with the top of the upper shell, and a threaded connector and a first boss are sequentially formed at the lower end of the lower shell from top to bottom. The first boss is of a cylindrical structure, and the diameter of the first boss is smaller than that of the threaded connector. And a temperature measuring probe is downwards formed at the lower end of the first boss. According to the integrated packaging structure of the temperature and pressure sensor, the contact surface between the temperature-sensitive element and the measured medium and the heat transfer efficiency are increased, and the contact surface between the pressure-sensitive element and the measured medium and the heat transfer efficiency are reduced.

The invention discloses a line protection supporting device used for automobile electronic control. The line protection supporting device comprises a first branch pipe, a second shell, a main pipe anda second branch pipe. A heat preservation layer is arranged in the main pipe. An anti-interference layer is arranged on the outer side of the heat preservation layer. The first branch pipe, the second branch pipe, the main pipe and a wiring pipe are all provided with hoop bodies. A hinging seat is arranged on one side in each hoop body. The top end and the bottom end of each hoop body are hingedto the corresponding hinging seat. A fixing bolt is arranged on one side of each hoop body. Connecting rods are fixed to the hinging seats. Connecting seats are fixed to the ends, away from the hinging seats, of the connecting rods. The output end of a second voltmeter is electrically connected with the input end of a single-chip microcomputer through a lead. The output end of the single-chip microcomputer is electrically connected with the input end of a wireless signal receiving and transmitting module through a lead. An anti-corrosion layer is arranged on the outer side wall of the main pipe, so that the anti-corrosion capacity is improved, and the service life is prolonged.

The invention discloses a connecting device and a battery module. The connecting device comprises: a battery connecting piece; two wings of the battery connecting piece are welding areas; The invention also comprises a pair of module connecting pieces, one side of the module connecting pieces is a welding area and the other side is a bolt connecting area, and the bolt connecting areas of the two module connecting pieces are overlapped and bolted to be fixed. The invention synthesizes the advantages of two connection modes of welding and bolt connection, ensures the reliability and stability ofbattery connection, and improves the flexibility of module connection collocation and assembly efficiency.

The invention relates to a vacuum antirust battery automatic equipment storage device. The vacuum antirust battery automatic equipment storage device comprises a machine body and a connecting shaft, wherein a servo motor is installed at the right upper end of the machine body, and a screw rod is installed at the bottom end of the servo motor; connecting threads are arranged on the outer sides of the bottom end of the screw rod, and fixing seats are fixed to the outer sides of the connecting threads; a supporting seat is arranged on the outer side of the connecting shaft, and the connecting shaft is positioned at the right end of the fixing seats; a penetrating hole is formed in the interior of the supporting seat, a penetrating block is connected to the inner end of the penetrating hole, and magnetic strips are separately connected to the left and right ends of the penetrating hole; and an inner chamber is arranged in the middle part of the machine body. The vacuum antirust battery automatic equipment storage device has the beneficial effects that an electromotor and a gear are arranged, a toothed lath is driven to move up and down through the work of the electromotor and the rotation of the gear, and the position of the toothed lath can be slidably adjusted more conveniently by the sliding between the toothed lath and a strip groove.

The invention discloses a magnetic suction damping fin production system and a production method, and belongs to the technical field of vehicle damping. The magnetic suction damping fin production system comprises a magnetizing mechanism, an air cooling mechanism and a punching and cutting mechanism arranged according to stations, wherein the magnetizing mechanism comprises a magnetizing frame, a magnetizing conveying belt, a magnetizing roller and a pressure plate; two ends of the magnetizing roller are detachably and fixedly connected with the magnetizing frame; two side ends of the pressure plate are detachably and fixedly connected with the magnetizing frame; the air cooling mechanism comprises an air cooling box, an air blower and an air cooling conveying belt; and the punching and cutting mechanism comprises two support tables on two sides of a punching and conveying belt, punching tables and lifting height adjusting mechanisms flatly placed and fixed on the inner side surfaces of the two support tables, and the punching and conveying belt penetrating through the punching and cutting mechanism for conveying magnetic suction damping fins. The magnetic suction damping fin production system solves the problems that an asphalt damping plate is more in harmful gas, high in substitute good cost, short effective service life, delayed dehydration, bad burrs during cutting and short service life of the conveying belt except low cost.

The invention discloses a high-efficiency wiring device for wire and cable processing, and relates to the technical field of wiring devices for wire and cable processing. In order to reduce the occupied area of the wiring device, wires and cables are detected. The device specifically comprises a base and eight guide plates, a columnar frame is fixed to the outer wall of the top of the base throughbolts, four first telescopic columns are slidably connected to the inner wall of the columnar frame, and second telescopic columns are slidably connected to the inner walls of the four first telescopic columns; and the circumferential inner walls of the four first telescopic columns and the circumferential inner walls of the four second telescopic columns are rotationally connected with rotatingplates through damping rotating shafts correspondingly, and the inner walls of one sides of the eight rotating plates are rotationally connected with first screws, first containing rollers and spongerollers correspondingly. By arranging the first telescopic columns and the second telescopic columns, the distances between the eight rotating plates and the base can be adjusted correspondingly, andthe flaw detection assembly can be used for detecting wires and cables in the wiring process of the wires and the cables.

Disclosed is a plate shearing machine with speed detection and feedback devices. The plate shearing machine comprises a machine frame. An upper tool rest is arranged at the bottom of the machine frame, an upper blade is installed at the bottom of the upper tool rest, and press devices are installed in the upper tool rest and controls press movement of the upper blade. A lower blade is arranged below the upper blade and fixedly arranged on a workbench. The speed detection devices are symmetrically arranged on the portions, located on the two sides of the upper blade, of the machine frame, auxiliary speed adjustment devices are arranged below the speed detection devices, and signals of the speed detection devices are transmitted to the press devices and the auxiliary speed adjustment devices. According to the plate shearing machine with the speed detection and feedback devices, the speed is detected by the use of the speed detection devices on the sides of the upper blade, the signals are transmitted when speed fluctuation happens, the speed of the upper blade is adjusted, and adjustment can be conducted by relying on the press devices of the upper blade, and can also be conducted by the use of the auxiliary speed adjustment devices when the press device cannot timely conduct adjustment.

The invention relates to an auxiliary equipment for mold replacement of a CNC bending machine, including a CNC bending machine, a mold replacement device, an upper mold, a lower mold, and a lifting device, and a mold replacement device is installed on the upper side of the front end of the CNC bending machine , The upper mold is installed at the lower end of the mold changing device, the lower mold is installed at the lower side of the front end of the CNC bending machine, and the lifting device is symmetrically installed on the left and right sides of the front end of the CNC bending machine. The invention can solve the problem that the connection process of each group of bolts takes a certain amount of time, resulting in a long overall installation time, and because the weight of the upper mold is heavy, and the installation position is at a relatively high position, personnel have to lift it up for a long time and with high strength. For the upper mold, it is easy to cause the stability of the lifting to be difficult to be guaranteed. Every time it is replaced, there will be wear and tear between the upper mold and the connecting structure. The degree of fit between them is greatly reduced.

The invention provides a clinical antenatal diagnosis and examination device based on the obstetrics and gynecology department, and relates to the technical field of medical instruments. The control part is arranged above the supporting part; the limiting part is arranged on the front side of the supporting part; the leg supporting part is arranged on the right side of the supporting part; the auxiliary part is arranged below the leg supporting part; a supporting block is fixed to the right end of a cylindrical sliding rod, so that the stability of the cylindrical sliding rod is kept, a rotating frame is fixed to the bottom of a leg supporting plate through a screw, so that the rotating frame conveniently moves along with the leg supporting plate, and a mounting frame is conveniently driven to approach a pregnant woman through a connecting plate; by means of the arrangement, detection tools can be conveniently placed and installed through the installation frame, a doctor is prevented from getting up for many times to take the detection tools, the situation that the detection time is long is avoided, and the problems that most pregnant women directly lie on a sickbed and open the two legs for detection, the legs of the pregnant women are inconvenient to adjust in the pregnancy period, and consequently the pregnant women cannot support the legs for a long time are solved.

The invention relates to a hydraulic expander for repairing a steel coil core. The hydraulic expander comprises an L-shaped outer tongs arm (1), wherein an end part of the outer tongs arm is connected with an inner tongs arm (3) through a pivot (2), the outer tongs arm (1) and the inner tongs arm (3) are arranged oppositely, the outer tongs arm (1) is provided with a shaft hole (1a) which is internally provided with an oil cylinder (4), and a piston (5) of the oil cylinder is supported against an upper end face of the inner tongs arm (3). The outer tongs arm is 350mm in length and 80mm in width, and the inner tongs arm is 345mm in length and 40mm in width. The maximal expansion angle between the inner and outer tongs arms is 32 degrees. The hydraulic expander disclosed by the invention is more labor-saving when being applied to taking cores of horizontal defected silicon steel coils, and has the advantages of reducing unsafe factors that an operator falls due to improper force application and the like, preventing pressing marks generated after crowbar pulling in the traditional treatment manner, and simultaneously improving the field production efficiency.

The invention relates to the technical field of articles for daily use, in particular to a seat armrest on a seat system for people to sit, such as chairs, sofas, wheelchairs and the like. The upper part of the each armrest is provided with a containing groove which is provided with an upward opening, the containing groove contains a bracket which can be unfolded for supporting and at least can be subject to angle adjustment, and a top cap is movably covered on the upper port of the containing groove. The seat armrest provided by the invention still maintains the leaning function for people to sit; and when being not unfolded, the bracket does not affect the seat armrest, and the armrest has beautiful and elegant appearance and maintains comfortable feel. After the bracket is unfolded, a stable bearing platform is provided, and a user can put objects, such as laptops and the like on the bearing platform which is greatly convenient to use, thus the use problem that the laptops can be supported and placed in practical use is solved, and the quality of life is improved. The seat armrest has simple structure, optimized combination, low cost, favourable positioning and clamping and strong bracket bearing capability, and is convenient in implementation and easy to manufacture.

The invention discloses a screen black frame system and a screen state switching method, and belongs to the technical field of film screens. The system comprises an upper black edge device fixed in front of the upper part of a screen and a double-layer side black edge device fixed at a side front part. The upper black edge device comprises an upper black edge and an upper black frame, wherein the upper black edge covers the upper black frame. The upper black frame can move up and down in a vertical direction. The double-layer side black edge device comprises two outer layer black frames fixed at a side front of the screen, and two inner layer black frames fixed between the screen and the outer layer black frames. The two inner layer black frames can make relative motion towards the central part in a horizontal direction, or make reverse motion towards two sides. The main purpose of the system is that the upper black frame can move up and down in the vertical direction through the fixing of the upper black edge of the upper black frame, and the double-layer side black edges make movement in the horizontal direction, thereby achieving the switching of the screen states, and optimizing the watch effect.

The invention discloses an auxiliary walking device for rehabilitation training and core component assembling equipment thereof, and belongs to the technical field of rehabilitation training. The auxiliary walking device comprises symmetrically arranged guide rails, the guide rails are supported by supporting columns, supporting bottom rings are movably arranged on the guide rails on the two sides, the supporting bottom rings on the two sides are of arc-shaped structures and can be in butt joint, and rotating rings are movably arranged on the supporting bottom rings; the rotating ring is of an arc-shaped structure, a telescopic column is arranged on the upper surface of the rotating ring, a supporting part is arranged at the top end of the telescopic column, a pull rod is hinged to the telescopic column, one end of the pull rod is connected with a pull wire, a supporting rod is arranged on the outer side of the rotating ring, a liftable connecting column is arranged on the supporting rod, and a roller is arranged at the bottom of the connecting column and located in a guide groove of the guide rail. The top of the connecting column is connected with the stay wire. And in addition, transfer of the supporting bottom ring, butt joint of the supporting bottom ring and the rotating ring and discharging after butt joint can be achieved through the assembling equipment, a transfer device in the middle can be greatly simplified, continuous and rapid production is achieved, the equipment cost can be reduced, and the production efficiency can be improved.

The invention discloses a proton exchange membrane fuel cell stack steel strip fastening device. Its structure includes, from back to front, a rear end plate, a rear end copper bar, a graphite plate membrane electrode group, a front end copper bar, a front end plate, and a dish. Spring and disc spring pressure plate, and then use U-shaped steel belt to lock the above parts. A certain arc surface is designed on the rear end plate. In order to allow the steel belt to apply the binding force to the graphite plate membrane electrode group more evenly, in A groove is made at the joint of the steel strip on the rear end plate to facilitate the clamping of the steel strip; a slot is made on the front end plate so that the disc spring pressure plate can be inserted, in order to allow the first bolt to be screwed into the crossbar. Prevent the steel belt from twisting and the steel belt will not touch the graphite plate. When the length of the graphite plate membrane electrode group becomes shorter, the disc spring is loosened by a certain length to offset the change in the length of the graphite plate membrane electrode group; when the length of the graphite plate membrane electrode group becomes longer, the disc spring is compressed to offset the length change of the graphite plate membrane electrode group. The change in the length of the group ensures that the performance of the stack will not be affected too much.