29results about How to "Improve locking efficiency" patented technology

The application relates to an invasive brain-computer interface surgical robot system and relates to the technical field of implantable brain-computer interfaces, which comprises a flexible electrode assembly, a multi-needle implant unit, a synchronous positioning driving unit and an implant planning control unit; the flexible electrode assembly comprises a plurality of flexible electrode wires; the multi-needle implant unit comprises a female needle and a plurality of male needles, and the plurality of male needles are connected with the plurality of flexible electrode wires respectively; the synchronous positioning driving unit comprises an open guide rail and a plurality of driving modules, the plurality of driving modules are arranged on the open guide rail, the open end of the open guide rail provides an avoiding space, and each driving module carries a group of multi-needle implant units; the implant planning control unit is communicatively coupled with the synchronous positioning driving unit, is used for planning a plurality of implant target points, and controls the action of the synchronous positioning driving unit. The application is favorable for realizing efficient and accurate implantation and visualized evaluation of high-throughput flexible electrodes, and significantly improves the efficiency, accuracy and safety of the invasive brain-computer interface surgery.

The present invention relates to an automatic wire stripping machine and a wire stripping method thereof. The structure of the present invention includes a base plate, a fixed plate with an opening vertically mounted on the base plate, and a locking mechanism for clamping and locking the cable, a rotating cutting mechanism for rotating and cutting the cable, a tool radial control mechanism for realizing radial movement of the tool, and a tool axial control mechanism for realizing axial feeding movement of the rotating cutting mechanism as a whole are respectively arranged on the base plate. The present invention can realize automatic locking of the cable by setting a locking mechanism, which has the advantage of large locking force, and utilizes a stepping motor to realize V-block dislocation locking through a first transmission unit, a rotating assembly and a second transmission unit, so that the cable locking efficiency is high. The present invention effectively solves the traditional manual wire stripping method, saves time and effort, not only reduces the work intensity of workers, but also has a fast speed and high efficiency in automatic wire stripping, greatly improving the production efficiency of the enterprise.

The invention discloses a roller washing machine locking device and a locking method, the roller washing machine locking device comprises a plurality of first mounting racks, a conveying mechanism used for conveying roller washing machine racks is arranged below the first mounting racks, and each first mounting rack is provided with a plurality of locking mechanisms used for locking a roller washing machine; an X-axis transverse moving module used for horizontally and transversely moving the locking mechanism in the X direction is further arranged on the first mounting frame, a camera support is further arranged above the first mounting frame, and a positioning detection camera used for positioning the locking holes is arranged on the camera support. According to the structure, the multiple first mounting frames are arranged, the multiple locking mechanisms are arranged on each first mounting frame, and the X-axis transverse moving module is matched, so that multi-position simultaneous locking is achieved, and the locking efficiency is greatly improved.

The utility model relates to the technical field of explosive ordnance disposal helmets, in particular to an explosive ordnance disposal helmet mask locking mechanism which comprises a shell, a limiting groove hole is formed in one side of the surface of the shell, a locking assembly is fixedly connected into the limiting groove hole, and the locking assembly comprises a limiting sliding groove, a clamping groove, a locking block, a rotating rod, a connecting cover and a mask. Through the arrangement of the limiting sliding groove, the clamping groove, the locking block, the rotating rod, the connecting cover and the mask, during use, a user can rotate the mask, the mask rotates to drive the rotating rod to rotate, and after the mask is rotated to a certain angle, the locking block can be clamped into the clamping groove, so that the mask is fixed and cannot loosen or slip off; the locking block is prevented from deviating, the effect of improving the locking efficiency is achieved, and the situation that in the explosive ordnance disposal process, the wearing speed needs to be increased, and the normal explosive ordnance disposal progress is affected due to the fact that the locking process of a traditional device is complex is avoided.

The invention discloses a heavy-load high-precision rapid guiding, positioning and locking device which comprises a locking shaft, a first butt joint component is fixed to the outer portion of the locking shaft, a locking hole is formed in the locking shaft in a penetrating mode, and a plurality of locking steel balls are annularly arranged at the position, close to the end of one side, of the locking shaft; a ball pressing piece capable of controlling the locking steel ball to be close to or away from the axis direction of the locking shaft is further arranged in the locking hole. A second butt joint component is fixed outside the locking sleeve, the locking sleeve is arranged outside the locking shaft in a sliding and sleeving mode, a butt joint hole is formed in the locking sleeve in a penetrating mode, the butt joint hole comprises a guide section and a locking section, and a locking conical surface is arranged at the position of the locking section; in the initial state, the locking sleeve is arranged outside the locking shaft in a sleeving mode, the ball pressing piece controls the locking steel ball to be away from the axis direction of the locking shaft and enables the locking steel ball to abut against the locking conical face, and the locking shaft and the locking sleeve are in the locking state. The invention provides a quick locking device which synchronously performs guiding positioning and locking functions and is high in locking efficiency.

The utility model relates to a lock catch equipment technical field especially, it relates to a luggage lock catch, it includes hook seat, lock seat and lock cover. The hook seat is provided with the clasp, and the lock seat is provided with the lock core. The lock cover includes the press cover, the clamping piece of setting in the press cover one end and the fixed part of setting below the press cover. Clamping piece and clasp card set connection, the one end of fixed part is close to clamping piece and is hinged to lock seat connection, and the other end of fixed part is hinged to the other end of press cover away from clamping piece. The lock core is used for fixing fixed part. Press cover, clamping piece, fixed part are integrally arranged, and the assembly is more convenient. When locking, directly press press cover can be in clamping piece card in clasp, fixed part and lock core accurate alignment simultaneously, and the operation is simple, and the locking efficiency is higher. Moreover, when needing to open, first, fixed part and lock core are unlocked, then directly pull press cover and can easily separate clamping piece and clasp, open press cover and fixed part, save time and effort.

The invention relates to the technical field of injection molds, and discloses an anti-dislocation locking mechanism for double guide rings of an injection mold, the anti-dislocation locking mechanism comprises an injection fixing mechanism and an injection driving mechanism, the injection fixing mechanism and the injection driving mechanism are respectively mounted at the driving end of an injection device, and the inner wall of the injection fixing mechanism is connected with the anti-dislocation locking mechanism. According to the invention, through the anti-dislocation locking mechanism and the precise matching of a guide sleeve, a positioning gear ring, a positioning gear and a linkage mechanism, the precise and rapid positioning of a guide column in a guide hole is realized, and the dislocation of the mold caused by vibration or external force in the injection molding process is effectively prevented; the injection molding precision and stability are obviously improved; the generation of defects such as burrs is reduced, so that the defective rate is reduced, and the overall competitive product rate of products is improved; and due to stable locking, unnecessary abrasion of the mold in the injection molding process is reduced, the service life of the mold is prolonged, and the frequency and cost for replacing the mold are reduced.

The utility model discloses a locking structure and a door body assembly, and belongs to the technical field of door lock structures, and the locking structure comprises a locking assembly and a spring bolt assembly; the locking assembly comprises a locking piece with the movable end capable of being close to or away from the spring bolt assembly. The spring bolt assembly comprises a spring bolt body in sliding connection with the spring bolt assembly. When the locking assembly and the spring bolt assembly are closed, the locking piece abuts against the spring bolt body in the direction of the spring bolt assembly. When the door frame and the door body are closed, the locking piece moves towards the door frame to drive the spring bolt assembly and the door body to move towards the door frame at the same time, so that the door body can be further attached to the door frame, the air tightness of the door frame and the door body is guaranteed, and the situation that the overall heat preservation performance is affected due to heat exchange of inside and outside air is avoided; and multiple bolt locking actions are omitted, so that the overall locking efficiency is effectively improved.

The present application relates to injection mold technical field, disclose a kind of injection mold double-guide ring's mistake-proof locking mechanism, including injection fixed mechanism and injection drive mechanism, the injection fixed mechanism and injection drive mechanism are respectively installed in the drive end of injection device, the inner wall of the injection fixed mechanism is connected with mistake-proof locking mechanism, the injection fixed mechanism includes injection fixed die, the present application is through mistake-proof locking mechanism, utilize the precision fit of guide sleeve, positioning tooth ring, positioning gear and linkage mechanism, the accurate and rapid positioning of guide column in guide hole is realized, effectively prevent the mold misplacement caused by vibration or external force in injection molding process, significantly improve injection precision and stability;It reduces the generation of burr and other defects, thereby reducing the rate of defective products, improve the overall product quality rate;Stable locking reduces unnecessary wear of mold in injection molding process, prolongs the service life of mold, reduces the frequency and cost of replacing mold.

The utility model relates to a lens lock attachment device technical field especially relates to a lens lock attachment system. A kind of lens lock attachment system includes lock attachment device and height detection equipment. Lock attachment device includes: heating device, feeding device and lock attachment device. Heating device is heated to lens. Feeding device includes: transition fixture and positive and negative detection mechanism. Transition fixture is used to carry outer pressure ring. Positive and negative detection mechanism is used to detect the placement state of outer pressure ring on transition fixture. Lock attachment device includes: lock attachment clamp and outer pressure ring lock attachment mechanism. Lens is fixed by lock attachment clamp. Outer pressure ring lock attachment mechanism is equipped with lock attachment component, and outer pressure ring is picked up by outer pressure ring lock attachment mechanism. Height detection equipment is used to detect the height of lens component after locking. A kind of lens lock attachment system, its advantage lies in, it is convenient to lock attachment operation, improves lock attachment efficiency, guarantees the lock attachment quality of all lenses, and improves quality inspection efficiency.

The present application discloses a file locking method, device, electronic device and storage medium, and relates to the field of cloud storage technology. The method comprises: parsing the files to be locked of multiple video channels to obtain file identification information of multiple files to be locked; determining the file locking rules corresponding to each of the multiple files to be locked according to the file identification information of the multiple files to be locked; and locking the multiple files to be locked respectively according to the file locking rules corresponding to each of the multiple files to be locked, so as to improve the efficiency of file locking.

The invention discloses an adjusting screw rod testing tool, which comprises a seat stand body, a locking connection body and a locking head, and the locking connection body is arranged at the front end part of the seat stand body; the lock attachment connecting body comprises a main driving piece located on the upper portion, a sleeve piece and a bit rod piece, the main driving piece is located above the sleeve piece and connected with the top of the bit rod piece, the bit rod piece penetrates through the position of a middle center shaft where the sleeve piece is located, and the bit rod piece is controlled by the main driving piece to rotate along the axis center; a connecting pipe fitting is arranged at the lower end part where the sleeve piece is located, and the sleeve piece is connected with a locking head through the connecting pipe fitting; through the sleeve lock arranged on the lock attaching head, matching and fixing of the positions of the lock screws of different models are realized, the torsion change of the positions of the lock screws is synchronously fed back, and the test is completed. Through the device, the screw rod is effectively fixed, the torsion measurement is synchronously completed, the requirement for locking screw rods of various models and sizes is met, and the locking efficiency is improved.

The utility model discloses a locking device for assembling a plastic fuel tank and an oil pump chuck. The locking device comprises the plastic fuel tank, the oil pump chuck, a locking module, a power module and a lifting module, the oil pump chuck is provided with a stress concave part and is rotationally and detachably connected with the plastic fuel tank; the locking module is arranged above the oil pump chuck; the power module is connected with the locking module and drives the locking module to rotate; the lifting module is connected with the power module, drives the power module and the locking module to ascend and descend and is matched with the power module. The lifting module drives the power module and the locking module to descend, and after the locking module is clamped into the stress concave part of the oil pump chuck, the power module drives the locking module to rotate, so that the oil pump chuck and the plastic fuel tank are locked. After the oil pump chuck and the plastic fuel tank are locked, the lifting module drives the power module and the locking module to ascend, the locking module leaves the oil pump chuck, manual operation is not needed in the whole process, and the locking device has the advantages of being high in locking efficiency, low in cost and the like.

The utility model relates to battery technology field especially relates to a battery assembly is with self -adaptation lock screw device, including base, support plate, product placing seat, battery pack, BMS, battery cover and support frame, two support plates are fixedly connected on the base, product placing seat is fixedly connected on the base, the battery pack is placed on product placing seat, is provided with BMS on the battery pack, support frame is fixedly connected on the base, the battery cover is placed on support frame. Through the rotation push rod drive fixed link and connecting rod rotation, the connecting rod rotation extrude second mount pad and move to right, second mount pad and drive third mount pad, feeding plate, two sliders and two fixed blocks move to right while moving to right, the feeding plate removes and moves the nut in the placing groove to the battery cover, can make the nut and the installation hole on the battery cover automatic alignment in this way, and then can not need manual positioning bolt hole, thereby avoid the nut to fall into the battery pack and cause damage to it when artificial installation.

The memory metal separation nut locking rod locking tool comprises a positioning block, a positioning rod and a torque wrench, the upper end of the positioning block is provided with a locking head, the lower end face of the positioning block is provided with a first positioning hole, the middle of the positioning block is provided with a cavity with an opening in one side, and the first positioning hole is communicated with the cavity; the positioning block is arranged above the memory metal separation nut, the locking nut is clamped in the first positioning hole, and the upper end of the locking rod matched with the locking nut is located in the cavity; a second positioning hole is formed in the end part of the positioning rod, the positioning rod extends into the cavity from the opening, the upper end of the locking rod is clamped in the second positioning hole, and the position of the locking rod is locked through the positioning rod; and the torque wrench is clamped on the locking head to apply torque to the locking head so as to lock the locking rod. By means of the mode that the positioning block, the positioning rod and the torque spanner are combined, positioning of the locking rod is guaranteed, meanwhile, accuracy of applied torque is guaranteed, and the problem that the two-dimensional pointing mechanism locking device is difficult to apply torque in a limited installation environment is solved.

The utility model discloses a special sawing machine for large workpieces, which comprises a machine body and a band sawing machine arranged on the machine body, and an automatic feeding mechanism for feeding workpieces is arranged on the machine body. According to the special sawing machine for the large workpieces, the right wedge-shaped block capable of making contact with the workpieces is arranged on the right jaw of the workpiece locking mechanism, the right wedge-shaped block can provide acting force in the horizontal direction and the vertical downward direction for the workpieces, the workpieces can be rapidly locked, and the locking efficiency is high. When feeding is needed, the workpiece locking mechanism located on the machine tool is loosened, the workpiece locking mechanism located on the pushing base locks the workpiece, the first driver drives the pushing base to act to drive the workpiece to be fed, saw cutting can be conducted after the workpiece locking mechanism located on the machine tool locks the workpiece, and the beneficial effect of being convenient to use is achieved.

The utility model discloses a pin header assembly for a PCB circuit board connecting wire, which comprises a circuit board body, a wire row, a pin and wire clamping mechanism, a wire end locking mechanism and a locking auxiliary mechanism, the pin and wire clamping mechanism comprises an upper clamping plate, a lower clamping plate and a collection plate, and the wire end locking mechanism comprises a clamping sleeve, a slope block, a pushing block, a threaded pipe and a pushing plate. The locking auxiliary mechanism comprises a driving motor, a rotating shaft, a main gear, an inner gear and a rotating disc, the wire clamping mechanism comprises an upper clamping plate, a lower clamping plate and a collection plate, stable connection of a wire row and the collection plate is ensured, the wire end locking mechanism comprises a clamping sleeve, a slope block, a pushing block and the like, so that wire ends can be uniformly and reliably fixed in place, and the wire end locking efficiency is improved. The locking auxiliary mechanism automatically drives the threaded pipe to rotate through a driving motor, a rotating shaft and other components, and the push plate is pushed.

This utility model relates to a self-centering tire lifter, comprising a base system and a column system. The base system includes a base, a lateral position adjustment component, and a base plate. The column system includes a column, a longitudinal position adjustment component, a tire clamping component, an auxiliary locking device, and a control unit. The lateral position adjustment component and the base plate are mounted on the base, and the lateral position adjustment component can adjust the lateral position of the base plate. The column is mounted on the base plate, and the longitudinal position adjustment component, the tire clamping component, the auxiliary locking device, and the control unit are mounted on the column. The longitudinal position adjustment component is connected to the tire clamping component and can adjust the longitudinal position of the tire clamping component. The control unit is signal-connected to the lateral position adjustment component, the longitudinal position adjustment component, the tire clamping component, and the auxiliary locking device. This utility model achieves automatic lateral and longitudinal tire positioning, can be adapted to different models of balancing machines, and improves the docking accuracy between the tire and the balancing machine spindle and the operating efficiency.

The utility model discloses a civil air defense door with a quick locking function, which comprises a left door body and a right door body, a positioning mechanism is arranged on one side of the left door body adjacent to the right door body, and a locking mechanism is arranged on one side of the positioning mechanism on the left door body and the right door body. The safety door is simple in structure and reasonable in design, the position of the positioning cross rod is changed through mutual contact after the two door bodies are closed, so that the control rope is released, positioning pins at the upper end and the lower end of the left door body 1 are fixed to a wall, the whole process can be triggered after the left door body and the right door body are in place, manual intervention is not needed, response is rapid, and safety is high. The closing efficiency of the civil air defense door and the overall safety performance of civil air defense engineering are effectively improved, meanwhile, the active locking effect after the right door body makes contact with the left door body is achieved, the overall structure is simple, locking is rapid, later door opening operation is convenient, and the locking efficiency of the civil air defense door and the overall safety performance of the civil air defense engineering are further improved.

The present invention discloses a parking lock for a full-area target detection vehicle, comprising a base, an opening is provided at the top of the base, a shift lever is rotatably installed inside the opening, a movable groove is provided at the top of the base and on one side of the opening, a limit plate is slidably installed inside the movable groove, a driving-out detection mechanism is provided at the bottom of the limit plate, a detachable first cover plate is provided at the upper end of the base and between the movable groove and the opening, a second cover plate is provided on one side of the first cover plate, and a first motor is fixedly installed inside the first cover plate. The present invention realizes automatic opening and closing of the parking lock through the coordinated arrangement of a parking opening mechanism and a parking locking mechanism, can realize rapid opening of the parking lock to facilitate vehicle entry without getting off the vehicle, and at the same time realize rapid closing of the parking lock after the vehicle drives out, can effectively improve the locking efficiency of the parking lock, thereby improving the travel efficiency of personnel, and has good application prospects.

The utility model discloses a falling protector applied to construction, and relates to the field of falling protectors, the falling protector comprises a guide rail and a falling protector, an eccentric wheel is rotatably arranged on the inner wall of the falling protector, a locking part for locking the falling protector is arranged on the inner wall of the falling protector, the locking part comprises a first rack, and a second rack is arranged on the first rack. The first rack is arranged on the falling protector in a sliding mode, a first gear is arranged at the bottom of the eccentric wheel, a second gear is rotationally arranged on the inner wall of the falling protector, and the first gear is meshed with the second gear; the falling protector can be locked according to the inertia of climbing or descending, the falling protector and the guide rail can be locked through the inertia of falling when a worker climbs the power tower and falls, and the two moving parts and the guide rail can be limited together after locking, so that the situation that the falling protector cannot respond in time can be avoided, and the safety of the worker is improved. And the locking efficiency of the falling protector can be improved.

This application belongs to the field of energy storage equipment, specifically providing an energy storage shell and an energy storage device. The energy storage shell includes a shell body, a shell cover, and a locking structure. The upper end of the shell body is provided with an opening and several limiting blocks. The shell cover is connected to the upper end of the shell body and can close the opening. The locking structure includes a first driving member, a transmission disc, and several locking pins. The first driving member passes through the shell cover and is rotatably connected to the shell cover. The transmission disc and locking pins are located inside the shell cover. The transmission disc is fixedly connected to one end of the first driving member located inside the shell cover. The locking pins are slidably connected to the shell cover, and each locking pin corresponds to one of the limiting blocks. One end of each locking pin is slidably hinged to the transmission disc. The rotation of the transmission disc can drive all the locking pins to slide synchronously, so that the other end of the locking pins selectively abuts against the limiting blocks. In this solution, one first driving member can simultaneously drive multiple locking pins, effectively improving the locking / unlocking efficiency between the shell cover and the shell body.

The utility model relates to a locking device and a tank cover thereof. The bulge is provided with a first hole; the sliding assembly is provided with a second hole corresponding to the first hole; the elastic component is arranged between the bulge and the sliding component; the guide assembly penetrates through the first hole, the elastic assembly and the second hole; the locking assembly and the mounting seat are hinged at a first hinge point; in the first state, the sliding assembly compresses the elastic assembly, slides in the direction close to the protrusion along the guide assembly and drives the locking assembly to rotate around the first hinge point in the first direction so as to achieve unlocking. In the second state, the elastic assembly recovers elastic deformation, then the sliding assembly is driven to slide in the direction away from the protrusion, and the locking assembly is driven to rotate around the first hinge point in the second direction for locking.

The utility model relates to plate processing technical field especially for a kind of alignment positioning device for titanium metal plate welding, including base and plate workpiece, positioning mechanism is provided on the base and is used to align and position plate workpiece, positioning mechanism includes: adjusting assembly, setting on base and being used to adjust the specification of plate workpiece;Supporting component, including the support seat being set on adjusting assembly, support seat inside left and right through and front and back through sliding installation have extension rod, several lock holes of array arrangement are set up in the outer wall of extension rod, the end of extension rod is fixed with connecting seat, the upper end of connecting seat is fixed with extension platform, the end of extension rod away from connecting seat is fixed with handle;Locking assembly, setting on support seat and being used to fix extension rod;Through the support rod of multidirectional pullout, different plate size and weld direction are quickly adapted, and push-rotary type locking mechanism is used to ensure that positioning is stable, improve the efficiency and precision of welding butt joint.

The utility model relates to the technical field of unwinding equipment, in particular to a material shaft pressing assembly and a winding and unwinding device, which comprises a support and a pressing assembly arranged on the side wall of the support. A step is arranged on the top of the support, a containing groove is formed in the step, a material shaft is installed in the containing groove, and a stepped shaft is arranged at one end of the material shaft. The pressing assembly comprises an L-shaped pressing block and a locking mechanism, one end of the L-shaped pressing block is rotationally connected with the support, a platform is arranged at the other end of the L-shaped pressing block, and a through groove is formed in the platform; a pressing bearing is arranged in the middle of the L-shaped pressing block and rotationally connected with the L-shaped pressing block. The locking mechanism is arranged on the side wall of the support, and a spring is arranged between the locking mechanism and the platform. The utility model provides a material shaft pressing assembly and a winding and unwinding device. The technical problem that a material shaft falls off due to the fact that the pressing assembly is loosened due to too large vibration can be solved.

The present invention discloses an automatic assembly device for the upper cover of a battery pack, comprising a clamping and conveying mechanism, a shaping mechanism, a pressing mechanism, and a side locking mechanism which are arranged above the upper cover conveying mechanism and the base conveying mechanism. The shaping mechanism is arranged at the side of the battery pack, and is used to adjust the parallelism of a thin sheet that has been assembled on the base to keep it vertical and ensure that it matches the corresponding position of the upper cover; the clamping and conveying mechanism is arranged across the upper cover conveying mechanism and the base conveying mechanism, and is used to clamp and convey the upper cover to the top of the base, and then drive the upper cover to move downward, so that the upper cover passes through the thin sheet and is placed on the battery pack; the pressing mechanism is arranged above the base, and is used to assemble the upper cover to the base with the help of downward pressure; the side locking mechanism is arranged behind the pressing mechanism, and is used to perform locking operations on different positions of the battery pack while applying downward pressure to the side of the battery pack on which the upper cover is assembled.

The utility model relates to a kind of earphone sleeve of sponge of horn mouth shape, belong to earphone sleeve technical field. Including earplug main body, the earplug main body is equipped with the sound amplification part for amplifying sound, the sound amplification part is located at the top of earplug main body and is horn-shaped, the axial through-hole that is penetrated with sound amplification part is equipped in the earplug main body, the earplug main body outside is equipped with annularly arranged memory sponge.The utility model provides a kind of earphone sleeve of sponge of horn mouth shape, by horn mouth sound amplification part and hard smooth surface design, improve high-frequency sound quality resolving power, reduce distortion;Memory sponge dynamically adapts ear canal, with anti-skid protrusion, enhance wearing stability and comfort degree;Anti-blocking component effectively blocks foreign matter, water barrier protects electronic component;Sound amplification part design substantially improves sound pressure level, accurately guide low-frequency energy, improve sound field positioning, solve the existing earphone sleeve sound quality turbid, wear unstable and other problems, improve user experience.

The utility model discloses an installation tool of an oil damper piston assembly and locking equipment of the installation tool, relates to the field of damper pistons, and aims to solve the problem that the efficiency is low when a damping part is locked through a wrench. According to the mounting tool, the two ends of a first positioning pin are connected with a base and a lower die plate correspondingly; the telescopic part is slidably connected with the base, and the telescopic end of the telescopic part can be ejected out of and retracted into the bearing surface; the lower die plate is provided with a first through hole and a plurality of second through holes which are guided to be parallel to the normal direction of the bearing surface of the lower die plate; the second through holes are connected with fixing nuts of the damping structure; the upper die plate and the lower die plate are symmetrical in structure, and the piston assembly is connected between the two die plates. One end of the locking head with the assembling groove is embedded into one end of the damping structure, and the other end applies torsion; the inner wall of each second through hole is provided with a first adsorption part which adsorbs and positions the other end of the damping structure. The positioning pin and the telescopic component position the lower die plate, the piston is arranged between the upper die plate and the lower die plate, the two ends of the damping structure are fixedly locked through the adsorption component and the locking head respectively, and the locking efficiency is improved.