34results about How to "Dispersion" patented technology

The application discloses an industrial steel cutter with adjustable cutting depth and an implementation method thereof, and relates to the technical field of industrial cutting tools, aiming to solve the problem that most of the existing industrial steel cutters adopt fixed structures or simple bolt adjustment structures, the cutting depth of the fixed steel cutter cannot be adjusted, and the steel cutter can only adapt to a single machining condition, the bolt adjustment structure only relies on a single bolt locking, and cannot realize micron-level precision fine adjustment, and the technical scheme is as follows: the industrial steel cutter comprises a cutter body shell, a connecting seat with holes, a telescopic blade assembly, a fine adjustment driving assembly and a connecting assembly, a mounting cavity is arranged at the bottom of the cutter body shell, the connecting assembly is slidingly assembled in the mounting cavity, a driving cavity is arranged at the top of the cutter body shell, the telescopic blade assembly and the fine adjustment driving assembly are connected through the connecting assembly, the industrial steel cutter adopts a worm gear and differential variable pitch screw composite transmission structure, the worm gear has a speed reduction transmission effect, and micron-level cutting depth fine adjustment can be realized.

The utility model relates to the field of building decoration and equipment installation, and discloses a novel anchoring assembly which comprises an anchoring base plate and L-shaped pressing plates, four sliding grooves are formed in the middle of the top end of the anchoring base plate, and the two L-shaped pressing plates are arranged at the top of the anchoring base plate in a sliding mode. Four sliding mandrels are fixedly arranged at the bottoms of the two L-shaped pressing plates, butt-joint type anti-falling blocks are fixedly arranged at the tops of the two L-shaped pressing plates, pressing plate clamping grooves are formed in the inner sides of the two L-shaped pressing plates, square pipes are connected into the two L-shaped pressing plates in a clamped mode, and clamping grooves are formed in the inner sides of the two L-shaped pressing plates. A sliding adjusting structure composed of a sliding groove of an anchoring base plate and sliding mandrels of L-shaped pressing plates is arranged, butt joint type anti-disengaging blocks are arranged at the tops of the two L-shaped pressing plates, when the L-shaped pressing plates are clamped, the anti-disengaging blocks are attached to each other to form a blocking face to prevent looseness, pressing plate clamping grooves are formed in the inner sides of the two L-shaped pressing plates, and therefore the anti-disengaging blocks can be clamped tightly. And the anti-falling tenon is clamped with the anti-falling tenon on the surface of the square tube, so that the square tube is fixed.

The invention relates to the technical field of aluminum alloy preparation, in particular to a 7075 aluminum alloy sheet and a preparation method thereof. The preparation method comprises the following steps: A) melting raw materials with specific components, and preserving heat at 720-760 DEG C; (B) carrying out furnace bottom degassing refining on the obtained melt, and then filtering; c) carrying out grain refinement on the obtained melt by adopting a refiner; d) casting the obtained melt under specific casting parameters to obtain a cast ingot; the method comprises the following steps of (1) carrying out primary soaking treatment on a cast ingot, (2) carrying out secondary soaking treatment on the cast ingot, (3) carrying out secondary soaking treatment on the cast ingot, and (4) carrying out rolling deformation on the treated cast ingot to obtain the 7075 aluminum alloy sheet. The cast ingot prepared through the method is fine in grain and compound and more dispersed and uniform in tissue distribution, and the finally obtained 7075 aluminum alloy sheet is stable in mechanical property and small in fluctuation range.

This utility model relates to a prefabricated balcony structure and railing. The prefabricated balcony structure includes a main unit, a base unit, a snap-fit ​​unit, and two docking units. Its advantages are: the main unit and base unit provide an installation benchmark for the railing structure, ensuring basic alignment without repeated fine-tuning, facilitating subsequent installation and fixing; the snap-fit ​​unit engages with the railing structure and base unit via pre-set snap-fit ​​blocks, achieving initial fixing of the railing structure, significantly reducing the cyclical operation of "trial installation-disassembly-re-fixing" in traditional installation, making the installation process simpler and more efficient; the base unit and snap-fit ​​unit work together to restrict the horizontal displacement of the railing structure from the bottom; and the docking units rigidly connect to the railing structure from the side or top, forming a double fixing of "bottom snap-fit ​​+ side or top docking," distributing the stress on the railing structure and preventing stability loss due to single-point loosening after long-term use.

The present application discloses a three-axis moving mechanism for installing a gear side clearance gasket of a reducer, including a base, on which a frame is fixedly installed. Inside the frame, there are a Z-axis transmission component, a Y-axis transmission component, and an X-axis transmission component. The Y-axis transmission component is arranged on the Z-axis transmission component, and the X-axis transmission component is arranged on the Y-axis transmission component. By setting the Y-axis transmission component, the X-axis transmission component, and the Z-axis transmission component, after the division of labor among the Z-axis, Y-axis, and X-axis, the control system can more simply plan the pick-up-move-place path, reduce the compound motion requirements of each axis, lower the control complexity, and each axis independently controls the direction, which can avoid the collision risk caused by structural overlap during multi-axis linkage.

The utility model relates to the technical field of sewage treatment equipment, in particular to a filter plate and a filter plate group. The filter plate comprises a plate body and a reinforcing plate frame, the reinforcing plate frame comprises an annular frame body and a plurality of reinforcing ribs located on one side of the annular frame body. The plate body is provided with an upstream face and a downstream face, the circumferential side face of the plate body is provided with a circumferential annular groove adjacent to the upstream face, the annular frame body is arranged in the circumferential annular groove, the upstream face is provided with a plurality of reinforcing grooves corresponding to the reinforcing ribs in a one-to-one mode, and the reinforcing ribs are arranged in the reinforcing grooves. By arranging the circumferential annular grooves and the reinforcing grooves, the annular frame body and the reinforcing ribs are in close fit with the plate body, so that the structural strength of the filter plate is remarkably improved.

The utility model discloses a voice coil motor, carrier, which is provided with a first through hole capable of placing a lens, and the side wall of the carrier is fixed with a coil, a base is provided with a second through hole coaxial with the first through hole, a spring piece is arranged between the carrier and the base, and the two sides of the spring piece are fixed with the carrier and the base respectively. The voice coil motor can balance the moment of force by canceling the upper spring and adjusting the lower spring wire width, can perfectly realize the use of one lower spring to carry the carrier, balance the moment of force, produce the tensile force opposite to the magnetic force, realize the use of one spring to realize the AF focusing stroke requirement, thereby reduce the cost.

The invention discloses a traction machine with a duplex gear planetary assembly, and relates to the technical field of traction machines, the traction machine comprises a rack, a motor, a planetary speed reducing mechanism and a traction wheel, a support frame is arranged on one side of the rack, the traction wheel and the motor are respectively arranged on two sides of the rack, the planetary speed reducing mechanism is detachably arranged at the center of the traction wheel, and the motor is arranged on the support frame. One end of the planetary reducing mechanism is rotationally arranged on the support frame, and the other end is connected with the motor and is driven by the motor; according to the scheme, the first-stage planet wheel and the second-stage planet wheel are integrally machined and formed, and a connecting gap of a traditional split type planet wheel is avoided, so that the transmission precision is improved, and vibration noise is reduced; by means of the tooth number difference of the first-stage planet wheel and the second-stage planet wheel, large-speed-ratio transmission can be achieved through single-time meshing; by means of the double-meshing structure that the first-stage planet gear is meshed with the sun gear and the second-stage planet gear is meshed with the gear ring, single-tooth stress is dispersed, the bearing capacity of the gear is improved, and the service life is prolonged.

According to the inflatable recreation facility reinforcing structure and the connecting method thereof, the stress strength of the connecting part of an inflatable product can be effectively enhanced by arranging a reinforcing area at the to-be-connected part, and the stress of the connecting part can be effectively dispersed by absorbing impact force through compression deformation when a child bounces by arranging a sunken buffer structure at the connecting part. The stress of the connecting part is reduced by 40-60%, the stress concentration is avoided, and the reliability of the connecting part is improved; by reinforcing the connecting area and designing the sunken structure, the stress abrasion of the connecting part of the inflatable product is effectively relieved, so that children cannot directly contact the sewing / hot melting processing edge, and the abrasion rate is reduced by more than 70%; the inflatable product can be effectively enabled to be more environment-friendly and safer, a gluing process is not needed, the hidden danger of glue volatilization is eliminated, and the requirement of environmental protection of materials is met; the inflatable product can be effectively more structurally durable, the connection strength is improved through the internal reinforcing layer and the mesh sewing technology, and the service life of the product is prolonged by 2-3 times.

The utility model discloses a ceiling lamp installation big plate which comprises a first installation plate and a second installation plate fixedly connected with a ceiling, a first inserting groove used for being connected with the second installation plate in a clamped mode is formed in the front side of the first installation plate, and the left side and the right side in the first inserting groove extend in the front-back direction to form contact faces. The left side and the right side outside the second mounting plate extend in the front-back direction to form supporting faces, the contact faces are lapped above the supporting faces, and clamping structures are arranged between the contact faces and the supporting faces. A counterbore is formed in the bottom of the first mounting plate, an integrally-formed metal reinforcing piece is arranged between the counterbore and the contact face, the metal reinforcing piece comprises a connecting part and an abutting part, the abutting part is tightly pressed on the contact face through the supporting face, and the ceiling lamp is connected with the connecting part and the counterbore in a fastened mode through first screws. The structural strength of the hanging plate is enhanced through the metal reinforcing piece, and it is guaranteed that the bearing capacity of the hanging plate is improved under the condition that the thickness of the ceiling lamp installation hanging plate is not increased. The thickness of the mounted hanging plate is small, the ceiling lamp and the hanging plate are integrally attached to the ceiling, and the appearance is more attractive.

The embodiment of the utility model provides a bed and a mattress plate automatic lifting device thereof, the mattress plate automatic lifting device comprises a linear power piece and a linkage mechanism, the linkage mechanism comprises a driving connecting rod, a driving connecting rod and a driving connecting rod, one end of the driving connecting rod is pivoted to a side plate of a bed frame, and the other end of the driving connecting rod is used as a sliding end and is in sliding connection with a mattress plate; the middle section of the driving connecting rod is pivoted with the output end of the linear power piece; one end of the driven connecting rod is pivoted to the middle section of the side plate of the bed frame, and the other end is pivoted to the mattress plate; the adapter is provided with a sliding plate and a pivoting plate which is formed by extending from the sliding plate and is correspondingly pivoted to the sliding end of the driving connecting rod, one of the sliding plate and the bottom surface of the bed mattress plate is provided with a long slotted hole extending in the length direction of the bed frame, and the other one is provided with a fixing hole; and a bolt penetrates through the fixing hole and the long slotted hole and then is screwed with a nut, so that the sliding plate is kept at a position which is attached to the bottom surface of the mattress plate and can slide relative to the bottom surface of the mattress plate. According to the embodiment of the utility model, the mattress plate can be smoothly driven to lift, the structural abrasion is small, and the service life is long.

This application discloses a tilting cylinder capable of precisely controlling the tilting angle, belonging to the field of cylinders. The tilting cylinder includes a cylinder body, a support mounted on the cylinder body, and a tilting seat movably mounted on the support. A locking mechanism is provided on the support, comprising a rotating shaft rotatably inserted into the support via a circular hole and fixedly connected to the tilting seat, a worm gear fixedly mounted on the rotating shaft, a worm rotatably inserted into the support and meshing with the worm gear, and a driving component for driving the worm gear to rotate. Through the meshing transmission of the worm gear and worm, the power of the driving component can be converted into precise angle adjustment of the tilting seat. The high-precision characteristics of the worm gear transmission are utilized to achieve precise control of the tilting angle. Simultaneously, the worm gear transmission has a natural mechanical self-locking characteristic, which allows the tilting seat to be rigidly locked in position through a mechanical structure after adjustment to the target angle, preventing angle deviation due to factors such as air pressure fluctuations and significantly improving the positional stability of the tilting seat.

The utility model discloses a large door hinge with a bearing, which comprises a fixed part, a movable blade, a screw and a nut, the movable blade is movably connected on the fixed part through the screw and the nut, and the bearing is arranged in the fixed part. The movable blade is provided with a reinforcing rib, and the fixed part and the movable blade are provided with a plurality of first installation holes and second installation holes which are used for being installed on a wall and a door respectively. According to the door hinge, the bearing is arranged in the fixing piece, so that friction between the movable blade and the fixing piece is reduced, the service life is prolonged, and operation is more convenient; the structural strength of the movable blade is enhanced through the reinforcing ribs, the installation stability is improved through the design of the multiple installation holes, the problems existing in an existing large door lock are effectively solved, and the large door lock is suitable for installation and use of various large doors.

The application discloses a split beam-column joint of fabricated steel structure and a system thereof, which comprises a column section, a connecting piece and a cross beam, the column section comprises a steel structure column, upper and lower end connecting interfaces and a beam interface, the connecting piece comprises a steel structure column, a gasket and a steel member, the cross beam is an I-shaped steel beam with bolt through holes arranged at two ends, and each part is connected through full bolt cooperation to achieve simple assembly relationship, standardization and convenient operation, and construction efficiency is improved. The connecting point position of the beam and the column is separated, the connection of the beam-column joint is changed from a single node into a double node, the stress of the connecting node is dispersed, and the strength, the rigidity and the stability of the connecting node are enhanced.

The utility model provides an adjustable lifting pedal device of train, including pedal plate, base plate and adjusting mechanism, adjusting mechanism includes motor drive subassembly and lifting subassembly, when in use, motor first drive lead screw to rotate, and then through first slider and first connecting support drive first support rod action, and the first support rod is driven by first slider and first connecting support. The first supporting rod and the second supporting rod which are arranged in a crossed mode form a four-connecting-rod mechanism, stress borne by the pedal is dispersed, and the risk of deformation caused by single-point supporting is avoided. Besides, the external power supply can be switched to the standby power supply after power failure, so that the pedal can still be adjusted in emergency, the standby power supply is automatically charged during normal power supply, and the maintenance burden of regularly replacing a battery is avoided; and the screw rod can be manually rotated through the sleeve during complete power failure, so that the height of the pedal is forcibly adjusted.

The utility model provides a conducting ring and a motor, and belongs to the conducting ring technical field, the conducting ring comprises an annular piece, the annular piece is provided with a mounting hole and a riveting hole, the riveting hole and the mounting hole are aligned in the thickness direction of the annular piece, and the hole bottom of the riveting hole is provided with a wave-shaped indentation surface; in the corresponding mounting hole and riveting hole, a solid part between the wavy indentation surface and the hole wall of the mounting hole is set as a flow deformation part; one part of the conductive fiber bundle is arranged in the mounting hole, the other part of the conductive fiber bundle extends out of one port of the mounting hole, and the hole wall of the mounting hole tightly hoops the conductive fiber bundle so that the conductive fiber bundle and the mounting hole can be riveted. The conductive ring has the beneficial effects that the structural design of the conductive ring is very ingenious, the riveting hole can be fully extruded, and the wavy indentation surface can enable the flow deformation part to generate more reasonable and accurate deformation flow, so that the hole wall of the mounting hole completely hoops a conductive fiber bundle, and the service life of the conductive fiber bundle is prolonged. And the riveting strength and the conductivity between the conductive fiber bundle and the annular piece are improved.

The application relates to the technical field of building construction, and provides a curved surface curtain wall of a building outer facade, which comprises a fixed base, metal furring and curtain wall glass; the fixed base is divided into a bottom base and a top base, the bottom base is installed on a building horizontal reference surface, and the top base is installed on a building wall surface; the metal furring is provided with a plurality of metal furings, each of which is in a bent shape and forms a curved line shape, and the bending positions of the metal furings are different, one end of the metal furring is connected with the bottom base, the other end is connected with the top base, and a stable assembly is arranged between adjacent metal furings; and the curtain wall glass is installed on the inner side of the metal furring. The application has the effect of improving the overall stability of the curtain wall.

The utility model relates to the technical field of junction boxes, and discloses a buckle type integrated extrusion waterproof junction box which comprises an upper cover, a lower shell is arranged on the lower surface of the upper cover, a sealing ring is arranged in the upper cover, a cable seat is fixedly connected in the lower shell, a fixing assembly is arranged in the upper cover, and a sealing assembly is arranged in the upper cover. The fixing assembly comprises a plastic buckle, the side wall of the plastic buckle is fixedly connected to the side wall of the upper cover, a clamping groove is formed in the side wall of the lower shell, and a reinforcing column is fixedly connected to the interior of the upper cover. According to the utility model, the plastic buckles are matched with the clamping grooves, the inclined surfaces of the barb teeth guide the buckles to smoothly slide into the clamping grooves to form interference fit, the junction box is ensured not to loosen in a vibration environment, and meanwhile, the reinforcing columns are in sliding fit with the plug bushes, so that a pre-positioning effect is achieved, dislocation gaps of side walls are reduced, stress of the buckles is dispersed, and the reliability of the junction box is improved. Local stress concentration is avoided, and the installation efficiency of equipment is improved through the structure.

The utility model relates to remote sensing image device technical field especially is remote sensing image shooting device. Including unmanned aerial vehicle equipment, the vertical rotating connecting shaft is equipped in unmanned aerial vehicle equipment lower extreme, rotating connecting shaft is connected with first rotation subassembly, the bottom fixed connection of rotating connecting shaft has the hoist frame, the hoist frame fixed hoisting has the vertical hoisting pole, the hoisting pole is connected with the horizontal mounting bracket, the mounting bracket is connected with second rotation subassembly, the mounting bracket hoists the tray assembly, the tray assembly is connected with the video camera, the tray assembly is connected with third rotation subassembly, the output shaft of first rotation subassembly is z axis, the output shaft of second rotation subassembly is y axis, the output shaft of third rotation subassembly is z axis, z axis, y axis and x axis are perpendicular to each other. Improved shooting performance, realized the problem of flexible three -dimensional angle adjustment.

The utility model relates to cable laying technical field discloses a kind of auxiliary devices for cable laying, comprising: mounting plate, several mounting holes are equipped on it;U bracket, it is fixed in the front side of mounting plate, the inboard is equipped with insulating plate, and bundling hole is equipped on the side wall of U bracket and insulating plate;Pulley, it is detachably located in the front side of mounting plate, and located between adjacent U bracket, and the height of its upper wall can be higher than the height of the bottom of U bracket.The utility model has the advantages that: while carrying out good supporting effect, it has the effect of reducing resistance, which is conducive to cable laying.

The utility model discloses a kind of assembly type wallboard fine adjustment device based on ultra-low energy consumption green building, it is related to wallboard fine adjustment device technical field, including carrying base frame, carrying base frame side is provided with lifting base frame, and auxiliary lifting mechanism is provided on carrying base frame;Carrying base frame is provided with fine adjustment base station and wall body bottom surface contact, and several moving ball are provided on fine adjustment base station, and movable control component is provided on carrying base frame, and handrail is provided on fine adjustment base station and movable control component cooperation, and it is convenient for operator to control that fine adjustment base station moves on horizontal plane and moves the auxiliary extraction component that fine adjustment base station is extracted from wall body bottom surface is provided on fine adjustment base station.The utility model reduces the gap and misplacement between wallboard by accurate fine adjustment function, effectively avoids heat bridge effect and air leakage and other problems, ensures the thermal insulation performance and air tightness of building, to meet the special requirements of ultra-low energy consumption building.

The utility model discloses a kind of stable drive structure of hanger for electroplating production line, it is related to electroplating equipment technical field, include drive assembly, drive assembly is installed on electroplating production line, drive assembly includes transmission chain and the drive gear for driving transmission chain movement, the outside of transmission chain is fixedly provided with multiple racks, multiple racks are continuously and aligned, each rack has array distribution tooth profile structure, tooth profile structure is located rack far from transmission chain side;Hanger body, hanger body is slidably installed on electroplating production line, the three pawls of each ratchet of the scheme are staggered and size decreases, can be simultaneously engaged with the three tooth profile structures adjacent on rack, through multiple teeth contact dispersion backlash error, simultaneously, the gradient design of pawl height and width can adapt to the slight deformation of rack, ensure that there is no obvious gap in meshing process, effectively avoid displacement deviation when hanger moves, reduce the risk of jamming or overlapping.

The utility model discloses a splitting machine supporting device convenient for recycling a paper core, and relates to the technical field of splitting machines, the splitting machine supporting device comprises an air expansion shaft, the air expansion shaft comprises a shaft barrel, a key strip, an air bag and an elastic piece, at least two rows of through holes are formed in the side wall of the shaft barrel in the axial direction, each row of through holes are formed in the circumferential direction of the shaft barrel, and the key strip is arranged in the air bag. Every two adjacent rows of through holes are arranged at intervals, key strips are arranged in the through holes, an air bag is arranged in the shaft barrel and used for pushing the key strips to move towards the outer side of the shaft barrel, the elastic pieces are used for pushing the key strips to move towards the interior of the shaft barrel, supporting tiles are arranged at the ends, away from the air bag, of the key strips, and when the air bag is deflated, all the supporting tiles in each row are spliced to form an annular structure. According to the utility model, the risk of paper core damage can be reduced, the paper core can be recycled conveniently, and resources and cost can be saved.

The utility model provides a waterproof connecting structure of an anti-floating anchor rod node, and belongs to the technical field of anti-floating anchor rod construction of constructional engineering. The structure comprises an anti-floating anchor rod, a waterproof connecting assembly, a polymer cement waterproof mortar layer and a fine aggregate concrete protection layer. The lower end of the anti-floating anchor rod is anchored in the concrete anchoring body of the basement structure layer, and the upper end penetrates through the anchoring plate through hole; the waterproof connecting assembly is composed of an anchoring plate and a pre-buried support, the lower end of the pre-buried support is pre-buried in the concrete anchoring body, and the anchoring plate is fixed between the supports. The concrete cushion layer and the anchoring body are sealed through polyurethane sealant, and a waterproof mortar layer, a self-adhesion waterproof roll and a reinforced fine aggregate concrete protection layer are sequentially laid on the concrete cushion layer and the anchoring body to form a totally-closed waterproof system. Through the design of multi-layer collaborative protection and the rigid support, the problems that a traditional joint is prone to leakage, and the anchor plate displaces are solved, the horizontal displacement resistance is improved, the construction efficiency is improved, and the anti-floating joint is suitable for anti-floating projects such as basements and basement and has high waterproofness, structural stability and economical efficiency.

This utility model relates to the technical field of positioning and protection processing equipment for colored enamel glass production, and particularly to a positioning and protection processing table for colored enamel glass production. The technical solution is as follows: A positioning and protection processing table for colored enamel glass production includes a processing table body, a mounting plate, a damping telescopic base, a speed controller, adjusting wheels, a rotating motor, a mounting frame, a positioning wheel frame, a lifting threaded shaft, and an adjusting turntable. The surface of the processing table body is provided with a mounting plate, and a damping telescopic base is provided on one side of the mounting plate. A speed controller is provided at one end of the damping telescopic base, and adjusting wheels are provided on the bottom surface of one side of the speed controller. Multiple sets of adjusting wheels are provided, and a rotating motor is provided at one end of the speed controller. This utility model achieves surface contact fixed-point support by setting four wheels for positioning, dispersing the force on the glass. Through rapid adjustment of the positioning structure, it can adapt to the processing requirements of glass of different thicknesses and adjust the position of the colored enamel glass in real time.

The utility model discloses a folding assembly and folding window, wherein the folding assembly comprises a connecting rod arranged between a window frame and a window sash, one end of the connecting rod is rotatably connected with a sliding member moving in a track of the window frame, and the other end is rotatably connected with a connecting block fixed on the window sash. The folding window of the utility model breaks through the opening limitation of traditional windows through the connection of the hinge of the rotating shaft of the window sash and the window frame and the folding assembly, the window sash can be completely folded to one side of the window frame to achieve the purpose of maximum opening, can satisfy the user's demand for extreme ventilation and field of view, and enhances the space connectivity of indoor and outdoor.

The utility model relates to a clamping jaw, and belongs to the technical field of part grabbing structures. The device comprises a supporting mechanism, a telescopic mechanism, a bearing mechanism and a clamping mechanism, the fixed end of the telescopic mechanism is connected with the supporting mechanism, the bearing mechanism is connected with the supporting mechanism, and the telescopic end of the telescopic mechanism slidably penetrates through the bearing mechanism; the clamping mechanism comprises a pushing assembly, a plurality of elastic pieces and a plurality of clamping jaws, the pushing assembly is connected with the telescopic end of the telescopic mechanism, the clamping jaws are evenly distributed in the circumferential direction of the bearing mechanism and distributed on the periphery of the pushing assembly, the elastic pieces are arranged between every two adjacent clamping jaws, the first ends of the clamping jaws are hinged to the bearing mechanism, and the clamping jaws are provided with inclined parts. The inclined part enables the middle width of the clamping jaw to be larger than the first end width of the clamping jaw, the elastic piece enables the inclined part to abut against the pushing assembly all the time, and movement of the pushing assembly can push the second end of the clamping jaw to be opened to clamp a workpiece. The clamping jaw has the effect of solving the problem that the stability is insufficient when the clamping jaw clamps a workpiece.