112 results about "Stable fixation" patented technology

This utility model relates to the field of target material packaging technology and discloses a special flight case for rotating targets. The case includes a case body, a hinge fixedly connected to the outside of the case body, a cover plate fixedly connected to the outside of the hinge, and the lower surface of the cover plate disposed on the upper surface of the case body. An upper shell is fixedly connected to the inside of the case body. A sliding groove is formed inside the upper shell, and a pressing plate is slidably connected inside the sliding groove. A spring is disposed on the lower surface of a retaining plate, a sponge block is fixedly connected to the outside of the pressing plate, and a rebound assembly is disposed outside the pressing plate. In this utility model, the sliding groove inside the upper shell guides the pressing plate to slide, and the retaining plate and spring limit the target material, thereby achieving stable fixation and safe protection of the target material, meeting the high-precision protection requirements of rotating targets.

The utility model relates to vertical machining center technical field, and public a kind of vertical machining center of foldable tool magazine structure, it include: fixed subassembly, the fixed subassembly includes machining center body, movable door, fixed block, fixed frame, plug-in rod and compression spring, the rear side of movable door is through pivot swing connection in the front side of machining center body, the rear side of fixed block and fixed frame is all fixedly connected in the front side of movable door, the left side of plug-in rod extends to the inside of fixed block and is penetrated through fixed frame, the surface of plug-in rod is sleeved in compression spring, the left side of compression spring is fixedly connected in the right side of plug-in rod, the right side of compression spring is fixedly connected in the inside of fixed frame, through fixed subassembly, when closing fixed movable door, the rebound force of compression spring drives plug-in rod to move left, makes the insertion of plug-in rod in the inside of fixed block, the stable fixation of movable door is prevented loose, through the slot, when plug-in rod is inserted and fixed, accurately inserted into the inside of fixed block.

This utility model relates to the field of sports equipment technology and discloses a detachable barbell assembly device, including a bar body. Multiple connecting rings are threaded onto the external surface of the bar body. Two counterweight wheels are threaded onto the external surface of the bar body. Connecting grooves are formed inside the counterweight wheels. A connecting block is fixedly connected to the top of the connecting groove. A driven groove is formed inside the connecting block. Two springs are fixedly connected to the bottom inner wall of the driven groove. A connecting block is fixedly connected to the top of the two springs. Multiple limiting holes are formed at the temporal portion of the connecting block, and positioning pins are provided on the inner wall of the limiting holes. This utility model enables quick installation and removal of the counterweight wheels. The spring self-adaptive structure and linkage engagement design are compatible with counterweight wheels of different sizes. By adjusting the position of the connecting rings and the elastic support, stable fixation of various specifications of accessories can be achieved.

This invention relates to the field of platinum-iridium ring assembly technology, and in particular to a medical catheter platinum-iridium ring assembly device based on elastic tension. The device includes a worktable and clamps for holding both ends of the catheter body. The outer side of the catheter body is used to fit the platinum-iridium ring. It also includes a back plate, which is located on the back of the worktable. The back plate has a slide rail, which includes a straight rail and a curved rail that are interconnected. A feeding clamp for feeding the platinum-iridium ring is slidably mounted on the slide rail. A tensioning assembly is also included, which is adjustable and movable above the front of the worktable. The tensioning assembly includes a tension clamp and upper and lower positioning clamps. This invention utilizes the elastic rebound of the catheter material to achieve reliable interference fit and locking of the ring. Stable fixation can be achieved with only a small stroke of rolling or crimping, avoiding the problems of ellipticization of the inner lumen and local flattening caused by traditional large deformation crimping.

The application relates to the technical field of medical devices, and discloses an interventional surgery robot and an interventional surgery system. The interventional surgery robot is provided with a mounting module fixed to a mounting base, one side of the mounting module is rotatably connected with the mounting base, and the other side is provided with a fixing structure which is detachably connected with the mounting base. Therefore, the mounting module can be completely fixed to the mounting base, so that a Y-shaped valve arranged on the mounting module can be kept relatively static during the whole surgery process, and the problem that the surgery fails due to movement of the Y-shaped valve does not occur. Before the surgery, the fixing structure needs to be separated from the mounting base, and the mounting module needs to be rotated by a certain angle around a rotating mechanism to a height at which a surgeon can conveniently install an instrument; after the instrument is installed, the fixing structure needs to be fixed to the mounting base, so that the mounting module and the Y-shaped valve are stably fixed to the mounting base, and the interventional surgery can be conveniently completed.

This utility model discloses an automotive inspection fixture clamping device, including a third mounting base. The upper left side of the third mounting base is connected to a clamping arm for clamping the workpiece under test via a rotating connector. A clamping element is connected to the upper end of the clamping arm. A pulling element is provided on the left side of the third mounting base for pulling the clamping arm to one side, thereby driving the upper end to clamp the workpiece under test. A support element is provided at the bottom of the pulling element. Through the arrangement of the rotating connector, the clamping element, and the pulling element, the rotating connector allows the clamping arm to rotate flexibly. Even in a confined space, it can avoid the obstruction of the outer panel by rotation and successfully clamp the workpiece under test from the reverse side. The clamping element can directly act on the workpiece under test to achieve stable fixation. At the same time, the pulling element provides stable power in a confined space and accurately controls the clamping force.

The invention relates to assembly and disassembly of electronic devices, e.g. power modules or MEMS modules. In that context, the invention is situated at the intersection of advanced assembly of electronic devices and environmental sustainability. It addresses the critical need for Robust Eco-Design (RED) with design in the 7R setting. For that purpose, the invention foresees to equip components of the electronic device which are to be fixed to each other, e.g. a heat sink, a substrate, and a semiconductor chip, with interlocking arrangements which can be securely fixed to each other with a shrink fitting procedure. This allows, on the one hand, stable fixation of the components and, on the other hand, simple separation of the components for the purpose of disassembling the electronic device.

The application provides a kind of extrusion nail and its assembly for orthopedics, which is applied to the technical field of orthopedic surgical instruments.The extrusion nail adopts a threadless structure and is composed of a nail body, a barb and an extrusion groove, and can be adapted to different length bone tunnels through the head-to-tail matching of multiple nails.The assembly includes an execution end and an impact handle, which can provide linear impact force to realize the linear implantation of the extrusion nail.The application replaces the rotary screwing with linear advancement, fundamentally avoiding the shearing and torsional injury of ligaments, and has the advantages of precise implantation, convenient operation and stable fixation, which meets the clinical needs of orthopedic ligament reconstruction surgery and improves the safety of surgery and the quality of postoperative healing.

This utility model discloses a long key scissor-switch module, including an outer scissor, a long inner scissor, a short inner scissor, keycaps, and a mounting base plate. The outer scissor has a middle mounting groove and an end mounting groove. The long inner scissor is installed in the middle mounting groove, and the short inner scissor is installed in the end mounting groove. One side of the outer scissor and one side of the short inner scissor are respectively fastened to the mounting base plate, with the side of the short inner scissor fastened to the mounting base plate away from the side of the outer scissor fastened to the mounting base plate. The keycaps cover the outer scissor, the long inner scissor, the short inner scissor, and the mounting base plate. The keycaps have multiple fastening parts, which respectively fasten to the outer scissor, the long inner scissor, and the short inner scissor. This utility model, by setting a multi-layered fastening structure for the outer and inner scissors, achieves stable fixation and responsiveness of the keycaps without the need for a stabilizer bar. It can effectively avoid noise caused by the impact of the stabilizer bar, increase the support for the keycaps, improve the poor feel caused by excessive keycap length, enhance the pressing feel, and improve the overall user experience.

This utility model discloses a rigid float, which includes: a float body, a base, multiple fastening and mounting mechanisms, at least one upper guide mechanism, at least one lower guide mechanism, at least one mounting mechanism, and two end protection mechanisms. The float fixing system uses arc-shaped fasteners to encircle the float and rigidly connect it to the base, forming a stable fixation to resist external impacts. The upper and lower guide mechanisms work together to achieve precise guidance and avoid skewing or jamming. The mounting mechanism and the base work together to distribute weight. The end protection mechanisms form a three-dimensional protection, enhancing impact and torsional resistance, making it suitable for waters with many debris. The system can carry various equipment. The rolling friction design improves the applicability to dynamic scenarios. Each mechanism is installed based on the existing structure, reducing redundancy and weight. The detachable design facilitates maintenance, reduces long-term costs, and balances practicality and economy.

This utility model relates to the technical field of refrigerant recovery and storage devices, and discloses a refrigerant recovery and storage device, including a trolley. A compressor is installed on the front side of the trolley, and a storage tank is installed on the rear side of the trolley. A winding roller is rotatably connected to the outer wall of the compressor, and a connecting pipe is installed at the top of the compressor. The connecting pipe is located on the outer wall of the winding roller, and the outer wall of the winding roller is connected to the outer wall of the compressor through a limiting component. A fixing block is fixedly connected to the middle of the trolley, and a sliding rod is fixedly connected to the top of the fixing block. An arc-shaped clamp is slidably connected to the outer wall of the sliding rod, and a spring is installed on the outer wall of the sliding rod. In this utility model, the storage tank is initially limited by the arc-shaped clamp, and then the motor drives the shrinking roller to rotate. The traction rope pulls the arc-shaped clamp to clamp the storage tank, and the shrinking roller is locked with a fixing head to achieve stable fixation. The winding roller is limited by the arc-shaped limiting block under the action of the spring force to prevent the connecting pipe from becoming tangled.

This utility model relates to the field of medical devices, providing a sterilization support device for a pre-filled syringe with a booster. The sterilization support device includes a support assembly and a fixing plate. The fixing plate is disposed on the upper part of the support assembly, and has multiple lateral opening channels spaced along its length. By spaced multiple lateral opening channels along its length and gaps in the side walls of these channels, the pre-filled syringe can enter the lateral opening channels through the openings, allowing the booster to engage within the gaps. This achieves stable fixation of the pre-filled syringe with booster on the sterilization support device, successfully solving the problem that traditional nesting boxes cannot accommodate pre-filled syringes with boosters. The multiple lateral opening channels and gaps form a sterilization medium flow channel, ensuring that the sterilization medium (steam, gas, radiation) can uniformly, fully, and without dead angles contact the product surface, achieving a good sterilization effect.

This utility model discloses a small workpiece positioning tray with vacuum adsorption function, belonging to the technical field of workpiece positioning trays. It includes a placement plate, a mounting block on one side of the placement plate, and a fixing mechanism disposed on the inner wall of the placement plate. Several evenly arranged first suction cups are installed on the inner wall of the placement plate, and the bottom end of each first suction cup is connected to a first conduit. A vacuum pump is installed on the inner wall of the mounting block, and one end of the first conduit penetrates the placement plate and is connected to the vacuum pump's extraction pipe. Through this method, the first suction cups at the top of the inner wall of the placement plate, in cooperation with the vacuum pump through the first conduit, generate suction, creating a vacuum state within the first suction cups. This allows for the adsorption of workpieces on the placement plate. The telescopic sleeves on the first suction cups are made of flexible material, allowing the workpiece to be squeezed into the placement plate and adhered to it, enabling rapid and stable fixation of the workpiece through adsorption.

This utility model relates to the field of utility knife technology and discloses a utility knife that is easy to adjust. It includes a blade body with multiple slots on both the front and rear sides of the top of the blade body. A blade holder is fixedly connected to the inner wall of the blade body, and a mounting base is provided on the inner wall of the blade holder. A utility knife blade is connected to the top left side of the mounting base via a mounting component, and a rotating shaft is connected to the top right side of the mounting base via a limiting component. A sliding frame is fixedly connected to the right end of the mounting base, and a fixing block is slidably connected to the outer wall of the sliding frame. A pressing block is provided on the inner wall of the fixing block. In this utility model, pressing the pressing block causes the slotted block to retract into the fixing block. The user can then push the fixing block to change the position of the utility knife blade within the blade holder. During adjustment, the slotted block remains retracted within the fixing block, preventing continuous friction with the slots. After adjustment, it automatically resets, ensuring a stable fixation of the utility knife blade even after prolonged use.

The utility model relates to a kind of water supply network safety protection device, belong to the technical field of hydraulic engineering, including protective sleeve one, protective sleeve two and fixing piece, protective sleeve one, protective sleeve two are connected fixed by fixing piece, the plug-in hole on protective sleeve two is communicated with placement groove, plug-in long strip bottom is inserted in plug-in hole, and placement groove is fixedly connected with abutment spring and is equipped with abutment elastic block, accommodating groove is set up in plug-in long strip middle part, and unlocking strip is equipped between accommodating groove, the abutment ladder of unlocking strip lower end is provided with the abutment elastic block of carding, unlocking strip bottom is inclined surface setting;The utility model has realized the quick installation and stable fixation of protective sleeve, can be completed dismounting without the aid of tool, significantly improves the operation convenience, enhances the sealing property and structural stability of protective sleeve splicing, reduces leakage hidden danger, applicable to a variety of complex working conditions under water supply network protection.

This utility model relates to the field of milling chuck technology and discloses a multi-station milling chuck for brake discs. It includes a fixture, a milling head disposed inside the fixture, a limiting component inside the fixture, a fixing component at one end of the fixture, and a clamping block on the outer wall of the fixture. A connecting block is fixedly connected to one end of the fixture. The limiting component includes a first locking block, one end of which is fixedly connected to the outer wall of the milling head. A limiting groove is formed inside the fixture, the outer wall of the first locking block slides within the limiting groove, and the clamping block slides within the outer wall of the fixture. In this utility model, the limiting groove fixes the first and second locking blocks, the second locking block fixes the first locking block, and the clamping block fixes the milling head inside the fixture. This achieves the effect of fixing the milling head during machining and providing precise positioning when changing the milling head, solving the problem of unstable milling head fixation during machining and improving the accuracy of the excitation / demagnetization tool.

This utility model relates to the field of fishing gear technology and discloses a multifunctional fishing cart, including a telescopic frame assembly. Quick-release wheel assemblies are provided at the four corners of the bottom of the telescopic frame assembly, allowing the telescopic frame assembly to move. A telescopic pull rod assembly is provided on the left side of the telescopic frame assembly, and a flip-up bracket assembly is provided on the right side. A locking assembly is provided inside the flip-up bracket assembly, and a limiting assembly is provided on the outside. In this utility model, the cross base frame, side cross frame, flip-up cross frame, and connecting rod constitute a quickly foldable cart body. The overall retraction or unfolding is achieved by rotating the hinge points, allowing the cart body to switch between storage and use states. The flip-up bracket assembly utilizes the elastic potential energy of the limiting spring to automatically engage the limiting hook into the slot, achieving stable fixation of the bracket in a vertical state and preventing items from falling.

The utility model discloses a drill tool limit elastic clamp forceps steel ball, aims at solving the technical problem of downhole stable fixation of drill tool. In the prior art, the traditional fixed mode has obvious defects: manual locking operation is cumbersome, and response lag, and is easy to fail in deep well or complex formation, and the hydraulic drive device structure is complex, and needs to be matched with hydraulic system, and is easy to break down in the downhole harsh environment, and the maintenance cost is high. At the same time, the existing structure locking and unlocking switching reliability is insufficient, and is easy to appear " false lock " " card stagnation ", and causes the drill tool fracture or accidental slide, and the spacing piece friction is big, and the energy consumption is high, and the life is short. The utility model cooperates through drill pipe, fishing pipe, limit ball, adjusting part and reset part, utilizes the block and the sliding slot to limit both only can move up and down. Reset part cooperates with adjusting part limiting surface, and control limit ball protrude or embed in the card slot: when the block is in the top of sliding slot, limit ball protrude and realize fixed, when in the bottom, limit ball embed and remove fixed. Its structure is simple, and need not complex drive system, and adapts to the harsh environment, and improves the reliability and operating efficiency of locking and unlocking.

This utility model belongs to the field of medical device technology, specifically disclosing a postoperative auxiliary rehabilitation bandage for gastrointestinal surgery, including a bandage body, shoulder strap, mobile phone pouch, and pocket. The bandage body has an adhesive strip device on one side. A barbed adhesive strip is fixedly connected to the inner side of the adhesive strip device, and a rough-surfaced adhesive strip is fixedly connected to the outer side of the barbed adhesive strip. Adhesive strip device buckles are fixedly connected to both sides of the barbed and rough-surfaced adhesive strips. When medical personnel use the bandage body, they place the right side of the bandage on the patient's abdomen, and then place the left side of the bandage on the right side for fixation. The barbed and rough-surfaced adhesive strips in the adhesive strip device are fixedly connected to the left and right sides of the bandage respectively by adhesive strip device buckles. The barbed adhesive strip is connected to the inner side of the adhesive strip device, and the rough-surfaced adhesive strip is connected to the outer side of the adhesive strip device. This design allows the left and right sides of the bandage to be more stably fixed to the patient's body, ensuring good comfort for the patient when using the bandage body.

The utility model belongs to the sintering field, concretely relates to a kind of bearing plate assembly, including bearing plate and support assembly, support assembly includes stand, positioning pin and clamping piece;Bearing plate is provided with one or more, when bearing plate is provided one, bearing plate is set in the top of stand, and stand is used to support bearing plate assembly in placement position;When bearing plate is provided multiple, adjacent two bearing plates are spaced apart by stand Parallel arrangement, the lowermost bearing plate is provided with stand below;Bearing plate is provided with through-hole on the board face, positioning pin is embedded on the through-hole, clamping piece is embedded with positioning pin and stand simultaneously, for limiting positioning pin on stand. The setting of positioning pin and clamping piece, can be conveniently and quickly the stable fixation of bearing plate to stand, and the fixed limit of stand above and below bearing plate can be realized, improve the overall support effect.

The utility model discloses a metal plate stamping device with fixed structure of machine tool belongs to sheet metal processing technical field, and it includes machine tool body, one side fixed connection of machine tool body has first air cylinder, first air cylinder one side is installed with first piston push rod, and first piston push rod is mutually clamped with machine tool body. This metal plate stamping device with fixed structure of machine tool is fixed to the plate on machine tool body, and the operator starts first air cylinder, to make first piston push rod elongation, and first piston push rod promotes rack to move, and rack drives two gear rotation, and gear drives threaded rod rotation, and threaded rod promotes fixed plate and rubber plate to move down, until rubber plate and plate surface completely adhere, and it is convenient to the quick stable fixation of plate, prevents the deviation or sliding of plate when stamping processing to plate, leads to the inaccuracy of the stamping device to plate, improves the working stability and accuracy of the stamping device.

The utility model relates to an enamel sheet type condenser convenient to disassemble, which belongs to the technical field of enamel sheet type condensers and fabric printing and dyeing, and comprises a condenser main body and a rack, and a positioning assembly used for conveniently disassembling and assembling the condenser main body and stably fixing the condenser main body is arranged on the inner side of the rack; the positioning assembly comprises a machine box fixedly connected to the inner side of the machine frame, the inner side of the machine box is rotationally connected with a two-way lead screw, the outer surface of the two-way lead screw is in threaded connection with two movable blocks, and synchronous belts are arranged on the outer portion of a driving belt wheel and the outer portion of a driven belt wheel. According to the enamel sheet type condenser convenient to disassemble, by arranging the positioning assembly, the two movable blocks are far away from each other, then insertion connection of a positioning rod and an insertion sleeve is relieved, a worker can conveniently and rapidly disassemble and overhaul the condenser body, meanwhile, the positioning rod is inserted into the insertion sleeve so that insertion connection and fixation can be conducted, and the disassembly efficiency is improved. And finally, the stability of the condenser main body is ensured.

The utility model relates to the technical field of terminal's fixed technology discloses a kind of fixing structure and mould suitable for terminal, including mould, the surface of mould is equipped with several moulds, the inner wall of mould is equipped with insert, the inner wall of insert is inserted with several terminal bodies, the inner wall of insert is equipped with limiting structure, the limiting structure includes L-shaped plate, the inner wall of insert is inserted in L-shaped plate, the surface of L-shaped plate is fixedly connected with several bronze spring leafs, the both sides of L-shaped plate are equipped with limiting hole, the both sides of insert are inserted with bolt, the size of bolt is compatible with the size of limiting hole, the vertical section of bronze spring leaf is in undulating shape, the fixing structure of this terminal, by setting limiting structure, reach the stable fixation of realization to terminal body, avoid terminal body from falling off from insert in processing process, and then guarantee the stability and yield of terminal body production.

The utility model discloses a simple and easy measuring device of mountain blast hole quick positioning and drilling, related to simple and easy measuring technical field of mountain blast hole positioning and drilling, device seat component and first adjusting seat, the top of device seat component is connected with first adjusting seat and installs, and the top of first adjusting seat is connected with second adjusting seat and installs. The simple and easy measuring device of mountain blast hole quick positioning and drilling, through the mutual assistance between each component realizes the quick positioning and drilling measurement of mountain blast hole, wherein device seat component is as basic support part, and the fixed hole on its base is convenient for the stable fixation of device in the operation site, and first adjusting seat uses through the cooperation of swivel seat and adjusting sliding block, makes the measurement component can be flexibly adjusted in the horizontal direction, and the stable guide rail on second adjusting seat provides the vertical direction's moving track for lifting seat, thereby realized the accurate adjustment of measurement component in the vertical direction.

The utility model discloses flat vacuum cup forming equipment convenient to fix, and relates to the technical field of vacuum cup production. According to the flat vacuum cup forming equipment convenient to fix, by arranging the fixing frame, the fixing blocks, the clamping holes, the clamping blocks, springs, fixing plates, bolts, fixing bases and a long pipe, the function of fixing the long pipe is achieved, the long pipe is prevented from moving in the water swelling process, and therefore a round pipe expands according to a preset shape under the uniform pressure environment; the size precision and the shape consistency of the flat vacuum cup can be improved, and the defective rate of products is reduced; by arranging the fixing base, the connecting rod, the connecting frame, the fixing rod, the connecting ring, the electric telescopic rod, the first adjusting rod, the clamping block and the manufactured long pipe, the function of multiple fixing of the manufactured long pipe is achieved, the fixing function of the manufactured long pipe is further enhanced, and the stable fixing mode can prevent the manufactured long pipe from accidentally moving or popping out in the high-pressure water expansion process.

The utility model relates to a stay wire sheath technical field, propose a kind of adjustable stay wire sheath structure, including sheath body, the lateral surface of sheath body is provided with splicing device, realize by the cooperation of assembly such as snap groove, clamping plate, sliding slot, spring, clamping rod, operating personnel push force lever, clamping rod is vertically upward movement, clamping rod upward movement pushes spring to contract, then clamping groove is aligned clamping plate and is clamped, subsequently, unclamp force lever, spring is vertically downward movement in sliding slot by the elastic force of itself and pushes clamping rod, and is inserted with fixed slot, to fix two sheath bodies, realize flexible splicing, adjustment and stable fixation, effectively improve the effect of detachability and stability of device. Through the above technical scheme, the problems of inconvenient installation and inconvenient carrying of the stay wire sheath in the prior art are solved.

This invention provides a dual-interface data storage device, including a memory body, a housing slidably connected to the outer side of the memory body, a mounting hole on one side of the memory body, and a locking mechanism installed inside the mounting hole. Through the cooperation of a telescopic rod and a spring, this invention enables the moving plate to move automatically when the user presses a button, and the locking block moves into the locking hole when it passes through the locking hole. This achieves stable fixation of the memory body, avoiding the need for fixation solely through damping friction, and providing long-term effective protection for the memory body. The cooperation of a connecting hole and a connecting groove enables stable fixation of the mounting base and reduces the overall space occupied by the memory body and housing, thereby increasing the portability of both.

This utility model discloses a small animal lateral recumbent position fixation device based on a fundus imaging device, comprising an iron main board and a metal base plate; the front of the main board is provided with three identical magnetic fixation bases, each with a fixing strap connected to it; the fixing straps include nylon straps, buckles, and length adjustment buckles; the front of the main board is symmetrically provided with two sufficiently long ear clips and magnetic ear clip bases; the back of the main board is provided with plastic pads and three pairs of circular slots; the back of the main board is repeatedly provided with two hinges, which are connected to the metal base plate; the back of the main board is symmetrically provided with two plastic pads; the base plate includes a U-shaped groove, inside which is provided a pivot and two support rods; the two support rods are connected by a crossbar; the side of the main board is provided with a handle. This utility model achieves stable fixation of the animal by using multiple straps to fix the torso and ear clips to fix the head; the device achieves good lateral recumbent position fixation through the hinges and lateral angle adjustment settings.

This utility model discloses a tool for efficiently improving scraping efficiency, specifically relating to the field of scraping processing technology. It includes a main rod for assembling and disassembling a wedge and a counterweight fitted around the main rod. An L-shaped connector is located at the end of the main rod furthest from the counterweight. An auxiliary component is located at one end of the L-shaped connector that connects to the wedge's positioning pin, and a snap-fit ​​component mates with the main rod at the other end. A limiting block is located at the end of the main rod furthest from the L-shaped connector. The counterweight slides axially along the main rod and generates axial impact by striking the limiting block. This utility model achieves rapid assembly and disassembly of the wedge through the L-shaped connector design, utilizes the snap-fit ​​component of the L-shaped connector for quick connection to the main rod, and combines the auxiliary component on the L-shaped connector for stable fixation of the wedge's positioning pin. This enables rapid adaptation when connecting or disassembling the tool and the wedge. Especially during batch wedge scraping, the tool adjustment speed is significantly accelerated, improving work efficiency and thus greatly enhancing scraping efficiency.