64results about How to "Shortcut structure" patented technology

The invention relates to an assembled movable anti-flood wall. The assembled movable anti-flood wall comprises vertical columns and stop plates, the vertical columns include a middle vertical column and two-end vertical columns, each of the middle vertical column and the two-end vertical columns is provided with a through hole, two sidewalls of each of the middle vertical column and the two-end vertical columns are provided with insertion grooves, the inner sidewalls of the two-end vertical columns are provided with water inlet holes, the two sidewalls of the middle vertical column are provided with water inlet holes, the stop plates are provided with through holes, and two ends of each stop plate are inserted into the insertion grooves of the corresponding two adjacent vertical columns. The assembled movable anti-flood wall has the advantages that the assembled movable anti-flood wall is good in structural integrity by the aid of a trapezoid convex-concave structure splicing and inserting connection mode; when flood enters the multiple layers of stop plates from bottom to top layer by layer, the weight of the stop plates is increased by water weight, so that structural integral stability is improved greatly; the height of the lower stop plates is larger than that of the upper stop plates, and the joints between a base or an original dam and the base stop plates are provided with grooves and hermetic rubber water-stop strips, so that seepage-preventing and water-stopping effects are good; the anti-flood wall can be assembled and disassembled quite rapidly by means of socket type connection between the vertical columns and the base, so that working efficiency is improved greatly.

A method for improving the spinning performance of fibres features that the fibres are modified by a thermal shape-fixating equipment in their spinning procedure. Said thermal shape-fixating equipment is composed of internal tube and external tube. When the fibres pass through the internal tube, they are acted by high-temp steam to make their macro-molecular chains flexible and extended.

The invention discloses a large-scale water seal testing equipment and the method. The equipment comprises the pressure-adding system, the sealing system, the water filling system, the supporting system and the measuring system. The said sealing system comprises the ring sealed slot frame forming the sealing chamber with the box joint and the sealing belt. The said sealed slot frame is fixed on the supporting system. The said sealing belt is on the end of the sealed slot frame. The said pressure-adding system and the water filling system separately connect the sealed chamber. The invention forms the independent sealed chamber at the joint of the box to implement the seal testing in single-hole clearance method, which overcomes the failures of the traditional method. The whole testing equipment is simple and fast.

The invention relates to the technical field of an air compressor, in particular to an air compressor. The air compressor comprises an air compressor body, a pipe structure air-storing tank and at least one disc-shaped air-storing tank, wherein the disc-shaped air-storing tank is detachably connected to the air compressor body; an air delivering opening in the air compressor body is communicated with the pipe structure air-storing tank in a sealing way; the pipe structure air-storing tank is detachably communicated with the disc-shaped air-storing tank through an air delivering pipe in the sealing way. Due to the fact that a one-charging-multipurpose working mode is adopted, a plurality of disc-shaped air-storing tanks can be simultaneously driven to inflate, and the working efficiency is high; due to the fact that the disc-shaped air-storing tanks are adopted, the air compressor is convenient to carry and store; due to the fact that the air compressor is more compact in structure, the air compressor is easier to package and transport; due to the fact that the disc-shaped air-storing tanks are fixed by adopting a detachable buckle mode, the operation step is simplified, and the air compressor is quick and safe in assembly, easy in disassembly, and can be quickly detached without any tool; the air compressor is simple in structure, parts are easier to store, and the processing cost is low.

The invention relates to a radiation device and a surface processing method. The radiation device includes a radiation body, wherein, the radiation body is made of aluminum material or the outer surface is provided with an aluminum film; the aluminum surface of the radiation surface is attached with silver micron cluster. The surface processing method of the radiation device includes the following steps: use acid solution to perform corrosion processing on the aluminum surface of the radiation body; and immerge the aluminum surface after corrosion processing into silver amine solution, which contains a reducing agent for silver ions exchange. The invention improves the radiation efficiency, because of large radiation surface area attached with silver micron cluster and large silver thermal coefficient. The radiation device surface processing method of the invention has the advantages of convenient and simple process course and easy operation realization.

The invention discloses a loosing-prevention bolt component with disassembling being controlled by preset torque. The loosing-prevention bolt component comprises a nut, a bolt and a moving-stopping gasket which are matched with each other, wherein the nut is provided with ratchet structures, the bolt is provided with an axial groove, the moving-stopping gasket is provided with elastic pawls matched with the ratchet structures and a horizontal protrusion matched with the axial groove, and the horizontal protrusion is provided with a prefabricated nick. According to the loosing-prevention bolt component with the disassembling being controlled by the preset torque, by means of a matching manner that the number of ratchets of the ratchet structures differs by one from the number of the elastic pawls, the nut can be engaged and locked only needing a minimal rotating angle; the preset torque of the prefabricated nick can be set according to safety factors required by loosing prevention, the bolt component can perform the loosing prevention according to actual requirements and the required loosing-prevention accuracy, and the bolt loosing problem can be prevented and controlled; and when the unscrewing torque is larger than the preset torque, the nut can be disassembled.

The invention discloses a pneumatic forceps holder, relates to the forceps holder for motor braking, and belongs to the novel pneumatic forceps holder both economic and practical. The pneumatic forceps holder is characterized by comprising two symmetrical shells same in size and two symmetrical spring bellows same in size; the spring bellow are oppositely combined and arranged in the shells and fixed through bolts; an inner cavity is formed between the spring bellows, and an outer cavity is formed between the shells and the spring bellows; one outer side face of the shells serves as a level surface to be processed. The pneumatic forceps holder has the advantages that the pneumatic forceps holder is novel in structure, convenient to process, small in size, convenient to mount and use, less n processing difficulty and precision, long in service life, convenient to maintain and replace and the like.

The invention relates to a block press device for a printing industry and especially relates to a compression roller safety control device. The compression roller safety control device realizes dual protection by a production safety alarm and a safety protection action and improves a yield and production efficiency of molding production. Infrared optoelectronic switches comprising infrared switch light-projectors and infrared switch receivers are respectively arranged at corresponding positions between a compression roller and a working roller of a block press, at two ends of the compression roller at a rolling side of a film strip, and at two edges which can travel closely to the film strip. A normally-closed contact of a relay coil KA2 is connected to a coil of a magnetic exchange valve in series. A working power supply of the magnetic exchange valve supplies power to the infrared optoelectronic switches simultaneously. The compression roller safety control device has dual effects of safe production and safety protection, realizes warning and shutdown when secondary power failure, enables operators to have chances of carrying out safety measures and correcting error actions under warning, clears a safety alarm when an error is corrected, and avoids any shutdown processes thereby avoiding defective good problems caused by shutdown.

The invention relates to a pneumatic safety underground shielding door, which comprises a first sliding door leaf, a second sliding door leaf, a pulley, a sliding rail, a first connecting plate, a second connecting plate, a first cylinder, a second cylinder, a pulley frame, a compressed air storage tank, a pneumatic solenoid valve and a structure framework, wherein the pulley is connected to the first sliding door leaf and the second sliding door leaf which are arranged in parallel by using the pulley frame; the sliding rail is arranged below the pulley; the pulley can do reciprocating motion on the sliding rail along the arrangement direction of sliding rail; the first sliding door leaf is connected with a piston rod of the first cylinder through the first connecting plate; the second sliding door leaf is connected with a piston rod of the second cylinder through the second connecting plate; air chambers on the two sides of pistons of the first cylinder and the second cylinder are connected with the compressed air storage tank through the pneumatic solenoid valve. Compared with the prior art, the invention has the advantages that: compressed air is taken as a power source, so the pneumatic safety underground shielding door is safe and reliable in running, simple in structure, convenient to install, low in construction cost and maintenance cost, energy-saving and environment-friendly.

The invention discloses an assembled building door / window installation structure, comprising an assembled wall, wherein the wall is reserved with a door / window hole, a vice frame is fixed on four sides of the door / window hole, a fixed part is arranged at the bottom of the vice frame and embedded into the wall, a positioning baffle higher than a vice frame body is arranged on the outer wall of the vice frame, a door / window frame is fixed on the vice frame via screws, the outer wall of the door / window frame presses against the inner side of the positioning baffle, and the gap between the door / window frame and the vice frame is filled with a seal foaming agent. The structure is simple; the vice frame is embedded into the assembled wall, the outer side of the door / window frame presses against the positioning baffle of the vice frame, and the inner side of the door / window frame is fixed on the vice frame via screws, so that the structure is fast in installation and reliable in fixation.

A stable connecting structure for a drawer and a slide rail of a piece of furniture comprises a furniture cabinet body, a slide rail assembly and a furniture drawer, wherein the upper portion of the side plate of the furniture drawer is provided with a cavity, the lower portion of the side plate of the furniture drawer is provided with an assembly groove, a front connecting device is arranged on the cavity, a connecting portion is arranged on the front connecting device, the inner top face of the assembly groove extends to form a supporting portion, a movable slide rail of the slide rail assembly is arranged on the side plate, the rear end of the movable slide rail is connected to the rear end of the side plate through a buckling-hooking portion in a clamped mode when the movable slide rail and the side plate are assembled, the front end of the movable slide rail is clamped to the connecting portion of the front connecting device through a connecting-matching portion in a clamped mode, and when the side plate is stressed with respect to the movable slide rail at least in the upper direction and the lower direction, the connecting portion and the supporting play a mutual supporting role to enhance the connecting stability between the side plate and the movable slide rail. By the adoption of structural improvement, the stable connecting structure for the drawer and the slide rail of the furniture has the advantages that the stable connecting structure is simple, reasonable, excellent in performance, safe, reliable, low in manufacturing cost, convenient and fast to assemble, the members are compact, stable and firm in connection, the service life is long, the appearance is attractive and the like, and is good in practicability.

The invention discloses a double-shaft jaw clutch. The double-shaft jaw clutch comprises a casing provided with an excitation coil, a mounting seat connected with the casing, an input shaft and an output shaft, wherein the input shaft is arranged on the inner end surface of the mounting seat and provided with an input rotating disc; the output shaft is arranged on the inner end surface of the casing and provided with an output rotating disc; an armature is connected with one end, close to the output rotating disc, of the input rotating disc; a spring seat is arranged in the center of the casing; multiple grooves are uniformly distributed in the casing and located in the circumferential direction of the periphery of the spring seat; a spring hole opposite to the spring seat is formed in the end surface center, close to the armature, of the output rotating disc; two racks distributed at a 180-degree angle are arranged on the output rotating disc and located on the periphery of the spring seat; the racks are embedded into the two corresponding grooves in a matched manner; disengaging springs are mounted in the spring seat and the spring hole in a matched manner. The double-shaft jaw clutch is simple in structure, small in size, light in weight, reasonable in layout and good in reliability.

The invention provides a welding centering checking fixture for automobiles. The welding centering checking fixture comprises a link mechanism and positioning devices, wherein the positioning devices are connected with the link mechanism through pin shafts; positioning pins on the positioning devices are positioned in automobile body RPS holes; the centering checking of parts, symmetric to each other, on the left and the right of an automobile can be achieved through the operation of the link mechanism; through the centering mechanism, the deviation value between actual data and theory data of an automobile body can be measured; corresponding correction is carried out according to a data production line to ensure the degree of symmetry of the complete automobile. Through the adoption of the welding centering checking fixture, the problem that the matching gap between parts is too large or too small, which is caused by manufacturing deviation brought by left side welding and right side welding of the automobile body, is solved, so that the symmetry of the complete automobile is ensured, and gaps between all parts of the complete automobile can be uniform and attractive and meet the theoretical size tolerance. The welding centering checking fixture has the advantages that the structure is simple, the centering speed is high, the cost is low, the data are accurate, and the welding centering checking fixture can be cooperated with other checking fixtures to reduce stations.

The invention discloses a rubber bushing vulcanization mold. A plurality of clutch mechanisms are arranged between a first upper mold plate and a second upper mold plate, and the clutch mechanisms areused for bouncing open and always connected with the first upper mold plate and the second upper mold plate; upper mold inserts are embedded in the first upper mold plate, a plurality of second uppercavities are formed in the second upper mold plate, a middle mold plate is provided with a plurality of middle cavities, and the lower mold plate is provided with a plurality of lower cavities used for fixedly arranging lower mold inserts; and the upper mold inserts partially extend into the second upper cavities, the lower mold inserts partially extend into the middle cavities, and a plurality of rubber discharging openings are formed in an intersection between the upper ends of the lower mold inserts and an outer pipe at intervals, and rubber storing grooves communicated with the rubber discharging openings are formed in the middle mold plate. The rubber bushing vulcanization mold has the advantages that a brushing is prevented from hanging on the second upper mold plate when a mold isopened, thus opening of the mold and taking of parts are convenient; that excess rubber and gas are discharged into the rubber storing grooves through the rubber discharging openings is ensured, gluesealing is convenient, the work of trimming slitter edge in a later stage is saved, the quality and the pass rate of the bushing are increased, and labor intensity of the workers is reduced.

The invention discloses a herringbone pre-stressed concrete pre-tensioning-method bridge erecting machine. The herringbone pre-stressed concrete pre-tensioning-method bridge erecting machine comprises a herringbone steel frame, a pushing device, a top windlass, an I-shaped steel rail, a rail windlass, a supporting jack, a pre-stressed steel bar and an integrated bottom die; the herringbone steel frame comprises a front supporting leg set and a rear supporting leg set; the front supporting leg set comprises a second top gear, a front supporting leg, a second retractable sleeve and a slidable transverse beam, which are connected in sequence; the rear supporting leg set comprises a first top gear, a rear supporting leg, a first retractable sleeve and a fixed end anchoring part, which are connected in sequence; the fixed end anchoring part is connected with an embedded part on a first-row bridge pier; the first top gear is engaged with the second top gear; the pushing device is connected with the front supporting leg and the rear supporting leg; the slidable transverse beam is connected with the second retractable sleeve, and can slide on the I-shaped steel rail; one end of the tensioned pre-stressed steel bar is anchored at a pier top of the first-row bridge pier, and the other end of the tensioned pre-stressed steel bar is anchored on the slidable transverse beam through an anchor clamping sheet. The herringbone pre-stressed concrete pre-tensioning-method bridge erecting machine does not occupy a space under a bridge, and the construction efficiency of the bridge is improved.

The invention discloses a fabricated anti-seismic strengthening structure of a brick-concrete structure wall body. The fabricated anti-seismic strengthening structure comprises the brick-concrete structure wall body (3); a floor slab (4) is arranged on the inner side of the brick-concrete structure wall body (3); a group of reinforcing columns (1) and reinforcing beams (2) are arranged on the outer wall surface of the brick-concrete structure wall body (3); and the reinforcing columns (1) and the reinforcing beams (2) are fixedly connected with the brick-concrete structure wall body (3) through tying bolts (5). According to the fabricated anti-seismic strengthening structure, a reinforced wall body of a house is connected with the reinforcing columns and the reinforcing beams in the fabricated anti-seismic strengthening structure to form a whole new wall body, so that the anti-seismic performance of the original brick-concrete structure house is greatly improved. According to the technical scheme, the fabricated anti-seismic strengthening structure is reliable, safe, fast and convenient, construction facilities does not need to be prepared on site too many, the construction speed is improved, social benefits for the earthquake-resistant comprehensive reconstruction of old residential buildings are obvious, the bearing capacity of the old residential buildings is increased, andmeanwhile the fabricated anti-seismic strengthening structure is beneficial to fire prevention and corrosion prevention.

Provided is an automatic fire extinguishing method of a square and plate blank cutting gun. When a fire cutting clamping device is stopped at an in-situ limit point, a PLC control system feeds back signals to guarantee that gas valve groups of the fire cutting gun are in an un-powered state, and gas sources of the fire cutting fun are closed. When casting blank is pulled to a fixed length, the control system feeds back signals, it is guaranteed that the gas valve groups of the cutting gun are powered through the PLC control system, the gas sources of the cutting gun are opened, and the casting blank is cut. After the casting blank is cut, it is guaranteed that the gas valve groups of the fire cutting gun is un-powered through the PLC control system, and the situation that all the gas sources of the cutting gun are closed is achieved. Compared with the prior art, the automatic fire extinguishing method of the square and plate blank cutting gun has the advantages of being simple in structure, capable of saving energy, rapid to install, convenient to operate, safe, reliable and the like. Automatic fire extinguishing is achieved when the cutting gun of a fire cutting machine is not used for cutting casting blank; automatic ignition operation is achieved when the cutting gun is used for cutting the casting blank, and therefore the purposes of saving energy and prolonging the online service life of equipment are realized.

The present invention involves assembly mobile flood prevention walls, including columns and baffles. The columns include both ends and intermediate columns.There are slots on the two side walls. There are water intake holes on the inner wall of the columns at both ends, and water intake holes are opened on the two side walls of the middle column.The two ends are inserted in the slot of the two adjacent columns.The invention trapezoidal concave structure combination connection method makes the structure better.When the flood enters the baffle from the bottom up layer by layer, increase the weight of the baffle through the water weight to further improve the overall stability of the structure.The height of the lower baffle is higher than the height of the upper baffle, and the base or the original dam and the underlying baffle are provided with grooves and sealing water stops to prevent seepage and water and preventing water.The socket -type connection between the column and the base makes the installation and disassembly of the flood prevention wall very fast, which greatly improves the work efficiency.

The invention discloses an angle-adjustable type agricultural tree trimming device in the technical field of agriculture. The trimming device comprises a supporting frame body. A handheld handle is installed at one end of one side wall of the supporting frame body. An installing groove is formed in the other end of one side wall of the supporting frame body. A rotating shaft is rotationally inserted in the installing groove. A hydraulic cylinder is installed at the bottom of an inner cavity of the installing groove. The rotating shaft is sleeved with a sleeve. The two side walls of the sleeveare provided with a lower turning plate and an upper turning plate respectively. The outer wall of the sleeve is provided with a fixing hole. The sleeve is fixedly connected with the rotating shaft through the fixing hole. The outer wall of the lower turning plate and the outer wall of the upper turning plate are each provided with a spring gasket. A buffering spring is installed in each spring gasket. The trimming angle of a trimming saw web is realized, the trimming efficiency is greatly improved, operation is simple and rapid, structure installation is stable, labor intensity is greatly reduced, and more time and labor are saved during agricultural tree trimming.

The invention discloses a lithium battery pack air tightness test explosion-proof valve plugging clamp. By cooperation of a cover board, a sealing base and design of drag hooks at two sides, an effectof sealing and compacting is realized, fast sealing for an explosion-proof valve is realized, sealing effect is good, pressure bearing capability and test efficiency in test are improved, and test accuracy is guaranteed. By an elastic component arranged, detaching is facilitated, work intensity of workers is reduced, the clamp can be operated quickly and efficiently, and is time-saving and labor-saving; and the clamp is simple in structure, low in manufacture cost, can be reused for many times, thus, usage cost is reduced further, and generalization in a wide range is facilitated.

The invention discloses a safety rail for an intelligent power maintenance site. The safety rail comprises a rail composed of a plurality of unit protective rails, wherein optical signal connection is realized between two adjacent unit protective rails through a laser transmitter and a receiver; the receiver is connected with a controller arranged in the unit protective rail; the controller is connected with a warning device; the warning device is connected with an intelligent searchlighting device; the lower part of the unit protective rail is connected with a location base through a telescopic rod; the unit protective rail is provided with a wireless signal transmitter connected with the controller. The two adjacent unit protective rails are connected through laser signals without a middle pull rope or a rail frame; the safety rail is simple in structure, quick and reliable to pave; the connector is connected with the warning device and the intelligent searchlighting device, the promotion, warning and protection of the rail range are realized in an all-round way; the safety rail is simple in structure and is not limited to the restrictions of the size and the topography; the warning system has high intelligence and accuracy.

The invention relates to a double-cavity five-channel first-aid respirator for respiratory alkaline poisoning, and aims to solve the technical problem that an existing respirator cannot solve the problem that oxygen deficit and respiratory alkaline poisoning exist at the same time. According to the technical scheme, the double-cavity five-channel first-aid respirator comprises a cylinder body, a first partition plate, a top plate, a rotating shaft, a ventilation cover and a second partition plate, a mask and a detection module interface are arranged at the lower end of the cylinder body, the first partition plate is vertically arranged in the middle of an inner cavity of the cylinder body, and an oxygen interface is formed in the portion, located on the lower portion of an area I, of the cylinder body, the top plate is arranged on the upper end, the rotating shaft is arranged in the middle of the top plate, the ventilation cover is arranged on the top plate, the second partition plate is vertically arranged in the middle of the ventilation cover, a ventilation cover bottom plate is arranged on the lower portion in the ventilation cover, a first air adjusting opening and a second air adjusting opening are formed in the top plate and the ventilation cover bottom plate, and a plurality of ventilation holes are evenly formed in the side walls of the two sides and the rear side of the ventilation cover. According to the invention, the inhalation concentration of carbon dioxide of a patient can be increased, oxygen can be supplemented, and the problems of respiratory alkaline poisoning and oxygen deficit can be solved.

The invention discloses a seedling stage mulching film rolling recycling machine. The seedling stage mulching film rolling recycling machine comprises a mulching film rolling recycling machine frame. Two sides of the bottom of the mulching film rolling recycling machine frame are symmetrically provided with cutters. The top of the rear end of the mulching film rolling recycling machine frame is provided with a mulching film rolling roll shaft. Two sides of the mulching film rolling roll shaft are provided with a bearing base with a bearing, and the bearing base with the bearing is fixed on the mulching film rolling recycling machine frame. One end of the mulching film rolling roll shaft is provided with a motor. A storage battery is positioned at one side of the motor, and the motor and the storage battery are fixed on the mulching film rolling recycling machine frame. One end of the motor and the mulching film rolling roll shaft is connected by a coupler. The seedling stage mulching film is cut along two bottom edges by the cutters, and is rolled on the mulching film rolling roll shaft across the mulching film rolling recycling machine frame. The seedling stage mulching film rolling recycling machine is capable of conveniently finishing the film detaching work after recycling the mulching film, the structure is simple and convenient, the mulching film can be continuously rolled, the subsidiary time for re-rolling the mulching film is shortened, and the working efficiency is greatly improved.

An auxiliary stabilization mechanism of drawer sliding rail synchronizers comprises sliding rail assemblies arranged on a left cabinet side board and a right cabinet side board respectively. Each sliding rail assembly comprises a movable sliding rail and a fixed sliding rail. The synchronizers are arranged on the movable sliding rails or the fixed sliding rails on the left side and the right side. Each synchronizer comprises a moving piece, a sliding groove seat and an auxiliary stabilization piece, wherein each moving piece is arranged on the corresponding sliding groove seat and provided with a rack, each sliding groove seat rotates relative to the corresponding rack and is provided with a gear component meshed with the corresponding rack in positioning mode, and each moving piece at least linearly slides on the corresponding sliding groove seat through meshing between the corresponding rack and the corresponding gear component. A shifting piece is arranged on each fixed sliding rail or each moving sliding rail, wherein at least one stroke of each shifting piece acts on the corresponding moving piece when the corresponding sliding rail assembly moves. A rotary connecting rod is arranged between the left gear component and the right gear component, and the left sliding rail assembly and the right sliding rail assembly are opened and closed synchronously through transmission connection between the gear components and the rotary connecting rod. One end of each auxiliary stabilization piece is arranged on a fixed part of a drawer, the other end of each auxiliary stabilization piece is arranged on the rotary connecting rod in a clearance and sleeve joint mode, and the rotary connecting rod is rotated in a positioned mode on the auxiliary stabilization pieces when the drawer is opened or closed.

A stable connection structure between a furniture drawer and a slide rail, comprising a furniture cabinet body, a slide rail assembly, and a furniture drawer. A cavity is provided on the upper side of the side plate of the furniture drawer, an assembly groove is provided on the lower part, and a front connecting device is provided on the cavity. The front connection device is provided with a connecting part, the inner top surface of the assembly groove is extended with a support part, the moving slide rail of the slide rail assembly is arranged on the side plate, and when the two are assembled, the rear end of the moving slide rail is locked by the hook part. It is connected to the rear end of the side plate, and the front end of the moving slide rail is clamped to the connecting part of the front connecting device through the connecting fitting part. When the side plate is stressed at least in the up and down direction relative to the moving slide rail, the connecting part and the supporting part support each other. function to enhance the stability of the connection between the side plate and the moving slide rail. Through the improvement of the above structure, the present invention has the characteristics of simple and reasonable structure, excellent performance, safety and reliability, low manufacturing cost, quick assembly, compact, stable and firm connection between components, long service life and exquisite appearance, etc., and has strong practicability.

The invention provides an explosion-proof valve sealing device for air tightness test of a lithium battery box body. The explosion-proof valve sealing device comprises a supporting piece and a sealing piece, the supporting piece comprises a supporting clamping base, an anti-explosion valve clamping groove extending into the supporting clamping base is formed in one side of the supporting clamping base, and two supporting plates which are located on the two sides of the anti-explosion valve clamping groove and oppositely arranged are fixed to the supporting clamping base; and the sealing piece comprises a fixing plate and a sealing plate, the fixing plate is located above the supporting clamping base, the two ends of the fixing plate are fixedly connected with the two supporting plates respectively, the sealing plate is located between the supporting clamping base and the fixing plate and is parallel to the supporting clamping base, a sealing groove is formed in the side, close to the anti-explosion valve clamping groove, of the sealing plate, a sealing gasket is attached to the inner wall of the sealing groove, and a pressing mechanism used for driving the sealing plate to move up and down is installed on the fixing plate. Through mutual cooperation of the mounting clamping seat, the sealing plate and the pressing mechanism, rapid sealing of the explosion-proof valve is achieved, the sealing effect is good, the pressure bearing capacity and the testing efficiency during testing are improved, and the testing accuracy is guaranteed.

The invention discloses an explosion-proof valve sealing fixture for testing the air tightness of lithium battery packs. Through the cooperation of the design of the cover plate, the sealing seat and the pull hooks on both sides, the sealing and compacting effect is realized, and the rapid sealing of the explosion-proof valve is realized, and the sealing effect is good. , improve the pressure bearing capacity and test efficiency during the test, and ensure the accuracy of the test; the elastic parts provided facilitate the disassembly, reduce the labor intensity of the workers, the operation is fast, save time and effort; the structure is simple, the manufacturing cost is low, and the Repeated use for many times further reduces the cost of use and is conducive to a large number of popularization and use.