Multipurpose screwdriver for hydraulic support
By designing a multi-purpose screwdriver, the problem of existing tools being unable to disassemble and assemble small-sized U-shaped clips and D-shaped pins was solved, enabling fast and safe disassembly and assembly operations, and improving the maintenance efficiency and safety of hydraulic supports.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
AI Technical Summary
Existing hydraulic support assembly and disassembly tools cannot effectively disassemble or assemble smaller-sized U-shaped clips, cotter pins, and D-shaped pins, resulting in cumbersome and complex operations and safety risks.
A multi-purpose screwdriver has been designed, comprising a handheld part, a first disassembly part, and a second disassembly part, each with a first tip and a second tip, capable of inserting and prying or hooking U-shaped clips and D-shaped pins of different specifications, possessing prying and hooking functions, and adapting to various disassembly needs.
It simplifies the operation process, improves disassembly and assembly efficiency, reduces safety hazards, ensures the stability and safety of operation, and has strong applicability, suitable for a variety of disassembly and assembly needs.
Smart Images

Figure CN223998323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic support disassembly and assembly tools, and in particular to a multi-purpose screwdriver for hydraulic supports. Background Technology
[0002] A hydraulic support is a device powered by high-pressure fluid, composed of several hydraulic components (such as cylinders and valves) and some metal structural parts. It is primarily used to support and control the roof. It can perform a complete set of processes including supporting, lowering and moving the support, and pushing conveyors. In coal mining faces, hydraulic supports play a role in controlling mine pressure, ensuring the stability and safety of the working face through the interaction between the hydraulic system and the roof.
[0003] When installing and maintaining hydraulic supports, it is usually necessary to install them using components such as U-shaped clips, cotter pins, and D-shaped pins. During maintenance, these components are removed from the hydraulic supports to inspect and maintain their various parts.
[0004] However, the installation of pipelines typically requires smaller-sized U-clamps, cotter pins, and D-pins. Current tools for installing and removing hydraulic supports are generally larger tools such as pry bars, scissor clips, and wrenches. These tools cannot handle smaller U-clamps, cotter pins, and D-pins, making the installation and maintenance of hydraulic supports cumbersome and complex, and posing certain safety risks to operators.
[0005] Therefore, there is an urgent need for a screwdriver tool capable of assembling and disassembling smaller-sized U-shaped clips, cotter pins, and D-shaped pins. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a multi-purpose screwdriver for hydraulic supports, which solves the technical problem that existing disassembly and assembly tools for hydraulic supports cannot disassemble and assemble U-shaped clips, cotter pins, D-shaped pins and other small-sized items.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0010] This utility model provides a multi-purpose screwdriver for hydraulic supports, including a handheld part, a first disassembly / assembly part, and a second disassembly / assembly part. The first disassembly / assembly part and the second disassembly / assembly part are respectively installed at both ends of the handheld part. The two side walls of the first disassembly / assembly part are bent towards one side and intersect to form a first tip facing a first direction. The two side walls of the second disassembly / assembly part are bent towards one side and intersect to form a second tip facing a second direction, with the first direction and the second direction being opposite. The first disassembly / assembly part and the second disassembly / assembly part can be inserted into U-shaped clips and D-shaped pins on the pipeline of the hydraulic support through the first tip and the second tip, respectively. The first disassembly / assembly part can pry the U-shaped clips and the D-shaped pins, and the second disassembly / assembly part can pry and hook the U-shaped clips and the D-shaped pins to remove the U-shaped clips and the D-shaped pins.
[0011] Preferably, the first disassembly / assembly part includes a first horizontal end face, and the two side walls of the first disassembly / assembly part are a first arc surface and a second arc surface; the first horizontal end face, the second arc surface and the first arc surface are connected end to end in sequence, and the first horizontal end face is connected to one end of the hand-held part; the second arc surface is a prying surface, the first arc surface is a prying position, and the prying position can cooperate with the prying surface to pry the U-shaped card and the D-shaped pin.
[0012] Preferably, a first groove is provided on the first arc surface, the first groove being the prying position, and the outer wall of the U-shaped clip and the D-shaped pin on the pipeline can fit against the inner wall of the first groove so that the U-shaped clip and the D-shaped pin on the pipeline are placed in the prying position.
[0013] Preferably, a first rubber pad is provided in the first groove. The first rubber pad is arc-shaped, and the sidewall of the first rubber pad facing the second arc surface is connected to the inner wall of the first groove. A plurality of first protrusions are provided on the first rubber pad, and the plurality of first protrusions are spaced apart along the sidewall of the first rubber pad away from the second arc surface.
[0014] Preferably, the second disassembly / assembly part includes a second horizontal end face, a third horizontal end face, and a vertical end face; the two side walls of the second disassembly / assembly part are a third arc surface and a fourth arc surface; the second horizontal end face, the vertical end face, the third horizontal end face, the fourth arc surface, and the third arc surface are connected end to end in sequence, and the second horizontal end face is connected to the bottom of the hand-held part; the fourth arc surface is a prying surface, the third horizontal end face and the connection between the third horizontal end face and the vertical end face are also prying surfaces, the third arc surface is a prying position, the prying position can cooperate with the prying surface to pry the U-shaped clip and the D-shaped pin; and the third arc surface is a hooking position, the hooking position can hook the U-shaped clip and the D-shaped pin, and pull the multi-purpose screwdriver to disassemble the U-shaped clip and the D-shaped pin.
[0015] Preferably, a second groove is provided on the third arc surface, the second groove being the prying position and the hooking position, and the outer wall of the U-shaped clip and the D-shaped pin on the pipeline can fit against the inner wall of the first groove, so that the U-shaped clip and the D-shaped pin on the pipeline are placed in the prying position and the hooking position.
[0016] Preferably, the second groove is provided with a second rubber pad, the second rubber pad is arc-shaped, and the side wall of the second rubber pad facing the fourth arc surface is connected to the inner wall of the second groove; the second rubber pad is provided with a plurality of second protrusions, and the plurality of second protrusions are spaced apart along the side wall of the second rubber pad away from the third arc surface.
[0017] Preferably, the second disassembly / assembly part is provided with a horizontally arranged through hole, which is used to insert the long end of the cotter pin and rotate the multi-purpose screwdriver to disassemble / assemble the cotter pin.
[0018] Preferably, a rubber ring is provided inside the through hole, and the outer wall of the rubber ring is in contact with the inner wall of the through hole.
[0019] Preferably, it also includes a handle, which includes a rubber sleeve, a first limiting part, and a second limiting part; the rubber sleeve, the first limiting part, and the second limiting part are all sleeved on the outer wall of the hand-held part, and the first limiting part and the second limiting part are respectively installed at both ends of the rubber sleeve to limit the range of hand-held movement; the rubber sleeve is provided with a plurality of spaced protrusions to increase friction.
[0020] (III) Beneficial Effects
[0021] The beneficial effects of this utility model are:
[0022] This utility model features a handheld part, a first disassembly / assembly part, and a second disassembly / assembly part, each with a first and a second pointed tip. This allows it to accommodate U-shaped clips and D-shaped pins of different sizes and shapes, meeting various disassembly needs without requiring tool changes or additional tools, making operation simpler and more convenient, and improving its applicability. Both the first and second disassembly / assembly parts can pry open the U-shaped clips and D-shaped pins, enabling quick and accurate alignment of the target parts, significantly shortening disassembly / assembly time and improving efficiency during later maintenance work on hydraulic supports and pipelines. Simultaneously, the second disassembly / assembly part can hook the U-shaped clips and D-shaped pins, providing additional operating options and enhancing the versatility and practicality of the multi-purpose screwdriver. This makes disassembling U-shaped clips and D-shaped pins more stable and faster for operators, reducing safety hazards caused by unsuitable tools and protecting operator safety. Installing U-shaped clips and D-shaped pins only requires tapping them to attach them to pipelines, making operation convenient. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a multi-purpose screwdriver for hydraulic supports according to the present invention;
[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0025] Figure 3 for Figure 1 Enlarged structural diagram at point B;
[0026] Figure 4 This is a three-dimensional schematic diagram of the overall structure of the connection between the handle, the first disassembly part, and the second disassembly part of a multi-purpose screwdriver for hydraulic supports according to the present invention.
[0027] Figure 5 This is a three-dimensional schematic diagram of the overall structure of the first disassembly and assembly part of a multi-purpose screwdriver for hydraulic supports according to the present invention, which disassembles the U-shaped clip and D-shaped pin.
[0028] Figure 6 This is a three-dimensional schematic diagram of the overall structure of the second disassembly and assembly part of a multi-purpose screwdriver for hydraulic supports, which is designed to disassemble U-shaped clips and D-shaped pins according to the present invention.
[0029] Figure 7 This is a three-dimensional schematic diagram of the overall structure of a multi-purpose screwdriver for hydraulic supports, which is used for through-hole installation or removal of U-shaped clips and D-shaped pins.
[0030] [Explanation of Labels in the Attached Image]
[0031] 1: Handheld part; 2: First disassembly / assembly part; 21: First horizontal end face; 22: First arc surface; 221: First groove; 23: Second arc surface; 24: First rubber pad; 25: First protrusion; 2a: First tip; 3: Second disassembly / assembly part; 31: Second horizontal end face; 32: Third horizontal end face; 33: Vertical end face; 34: Third arc surface; 341: Second groove; 35: Fourth arc surface; 36: Second rubber pad; 37: Second protrusion; 38: Through hole; 39: Rubber ring; 3a: Second tip; 4: Handle; 41: Rubber sleeve; 411: Protrusion; 42: First limiting part; 43: Second limiting part. Detailed Implementation
[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.
[0033] Example
[0034] like Figure 1 As shown, a multi-purpose screwdriver for hydraulic supports according to this embodiment includes a handheld part 1, a first disassembly / assembly part 2, and a second disassembly / assembly part 3.
[0035] Specifically, such as Figure 4As shown, the first disassembly / assembly part 2 and the second disassembly / assembly part 3 are respectively installed at both ends of the handheld part 1. The two side walls of the first disassembly / assembly part 2 are both bent to one side and intersect to form a first tip 2a facing a first direction. The two side walls of the second disassembly / assembly part 3 are both bent to one side and intersect to form a second tip 3a facing a second direction, with the first and second directions being opposite. The first disassembly / assembly part 2 and the second disassembly / assembly part 3 can be inserted into U-shaped clips and D-shaped pins on the hydraulic support pipeline through the first tip 2a and the second tip 3a respectively. The first disassembly / assembly part 2 can pry the U-shaped clips and D-shaped pins, and the second disassembly / assembly part 3 can pry and hook the U-shaped clips and D-shaped pins to disassemble them. By setting up the handheld part 1, the first disassembly / assembly part 2, and the second disassembly / assembly part 3, and by providing the first tip 2a and the second tip 3a for both the first disassembly / assembly part 2 and the second tip 3a, it can adapt to U-shaped clips and D-shaped pins of different sizes and shapes, meeting various disassembly needs without the need to change tools or use additional tools, making operation simpler and more convenient, and improving applicability. Furthermore, both the first disassembly / assembly unit 2 and the second disassembly / assembly unit 3 can pry open the U-shaped clips and D-shaped pins, allowing for quick and accurate alignment with the target parts, significantly shortening disassembly / assembly time and improving work efficiency during subsequent maintenance of pipelines on hydraulic supports. Simultaneously, the second disassembly / assembly unit 3 can also hook the U-shaped clips and D-shaped pins, providing additional operating options and enhancing the versatility and practicality of the multi-purpose screwdriver. This makes disassembling the U-shaped clips and D-shaped pins more stable and faster for operators, reducing safety hazards caused by unsuitable tools, protecting operator safety, and improving overall safety. Installing the U-shaped clips and D-shaped pins is simple; just tap them to attach them to the pipelines, making the operation convenient.
[0036] Furthermore, such as Figure 1As shown, the first disassembly / assembly part 2 includes a first horizontal end face 21, and its two side walls are a first arc surface 22 and a second arc surface 23. The first horizontal end face 21, the second arc surface 23, and the first arc surface 22 are connected end to end, and the first horizontal end face 21 is connected to one end of the handle part 1. The second arc surface 23 is a prying surface, and the first arc surface 22 is a prying position. The prying position can cooperate with the prying surface to pry open the U-shaped clip and the D-shaped pin. By setting a first arc surface 22 and a second arc surface 23, with the first arc surface 22 and the second arc surface 23 being the prying position and the prying surface, respectively, the first disassembly / assembly part 2 can enter the installed U-shaped clip and D-shaped pin through the first tip 2a, so that the U-shaped clip and D-shaped pin are in the prying position. Through cooperation with the prying surface, a lever is formed, providing greater force during operation, thereby easily prying the U-shaped clip and D-shaped pin, reducing the physical exertion of the operator, facilitating the prying out and disassembling of the U-shaped clip and D-shaped pin, improving work efficiency and reducing operational difficulty. Taking pipelines as an example, pipelines are generally connected by connecting pipes. U-shaped clips and D-shaped pins are vertically inserted into the connecting pipes to fix the pipeline to the connecting pipes. When disassembly is required, the second arc surface 23 serves as the prying surface, which is in contact with the surface of the connecting pipe, and each point on the prying surface can act as a fulcrum, thus cooperating with the first arc surface 22 to form a lever to complete the disassembly of the U-shaped clip and D-shaped pin. Figure 5 As shown. It should be noted that this example only uses a pipeline; this multi-purpose screwdriver can also disassemble other parts in other locations, which are not limited here and will not be elaborated further. The ends of the first arc surface 22 and the second arc surface 23 furthest from the first transverse end surface 21 intersect to form the first tip 2a.
[0037] Furthermore, such as Figure 2 As shown, a first groove 221 is provided on the first arc surface 22. The first groove 221 serves as a prying position, allowing the outer wall of the U-shaped clips and D-shaped pins on the pipeline to fit against the inner wall of the first groove 221, thus placing the U-shaped clips and D-shaped pins within the prying position. By providing the first groove 221 on the first arc surface 22, it can match the position and shape of the U-shaped clips and D-shaped pins on the pipeline, ensuring that the multi-purpose screwdriver tool can quickly align the U-shaped clips and D-shaped pins during operation, reducing operational errors caused by positional deviations, thereby improving work efficiency. Furthermore, as a prying position, it can cooperate with the prying surface to pry the U-shaped clips and D-shaped pins, allowing them to be pried out and disassembled, further improving work efficiency.
[0038] It should be noted that during the process of the first disassembly / assembly part 2 entering the U-shaped clip and D-shaped pin through the first tip 2a, if the U-shaped clip or D-shaped pin is small in size, the first arc surface 22 acts as a prying position and cooperates with the prying surface to pry the U-shaped clip or D-shaped pin. When the gap between the U-shaped clip / D-shaped pin and the pipeline increases, the first groove 221 acts as a prying position, allowing the U-shaped clip / D-shaped pin to be placed in the first groove 221. This aligns the U-shaped clip / D-shaped pin and allows it to be disassembled, preventing the U-shaped clip / D-shaped pin from disengaging and improving safety.
[0039] Furthermore, such as Figure 2 As shown, a first rubber pad 24 is provided inside the first groove 221. The first rubber pad 24 is arc-shaped, and the side wall of the first rubber pad 24 facing the second arc surface 23 is connected to the inner wall of the first groove 221. This can prevent the first groove 221 from having a hard collision with the target part when the multi-purpose screwdriver is used, thereby avoiding wear between the first groove 221 and the target part and reducing the amount of wear. The first rubber pad 24 is provided with a plurality of first protrusions 25, which are spaced apart along the side wall of the first rubber pad 24 away from the second arc surface 23. This can increase the friction between the first rubber pad 24 and the target part and prevent slippage during prying.
[0040] Furthermore, such as Figure 1As shown, the second disassembly / assembly part 3 includes a second horizontal end face 31, a third horizontal end face 32, and a vertical end face 33. The two side walls of the second disassembly / assembly part 3 are a third arc surface 34 and a fourth arc surface 35. The second horizontal end face 31, vertical end face 33, third horizontal end face 32, fourth arc surface 35, and third arc surface 34 are connected end-to-end. The second horizontal end face 31 is connected to the bottom of the handle part 1. The fourth arc surface 35 is a prying surface. The third horizontal end face 32 and the connection point between the third horizontal end face 32 and the vertical end face 33 are also prying surfaces. The third arc surface 34 is a prying position that can cooperate with the prying surface to pry open the U-shaped clip and D-shaped pin. The third arc surface 34 also has a hooking position that can hook the U-shaped clip and D-shaped pin, allowing the multi-purpose screwdriver to be pulled to remove the U-shaped clip and D-shaped pin. By setting a third horizontal end face 32, a vertical end face 33, a third arc face 34, and a fourth arc face 35, with the third arc face 34, the fourth arc face 35, the third horizontal end face 32, and the connection point between the third horizontal end face 32 and the vertical end face 33 serving as the prying position and prying surface, the second disassembly / assembly part 3 can enter the installed U-shaped clip and D-shaped pin through the second tip 3a, placing the U-shaped clip and D-shaped pin in the prying position. This forms a lever through cooperation with the prying surface, providing greater force during operation, thus easily prying the U-shaped clip and D-shaped pin, achieving rapid disassembly of the U-shaped clip and D-shaped pin, reducing the operator's physical exertion, improving work efficiency, and reducing operational difficulty. Simultaneously, the third arc face 34 serves as a hook position, capable of hooking the U-shaped clip and D-shaped pin. Simply pulling the multi-purpose screwdriver is sufficient to disassemble the U-shaped clip and D-shaped pin, increasing operational flexibility and improving the applicability of the multi-purpose screwdriver. Regarding piping, as mentioned above, pipes are generally connected by connecting pipes. U-shaped clamps and / or D-shaped pins are inserted vertically into the connecting pipes to secure the pipes. However, for situations where two pipes need to be installed simultaneously on a single connecting pipe, such as... Figure 6As shown, two pipes are vertically inserted into the connecting pipe via U-shaped clamps and / or D-shaped pins, respectively installed at both ends of the connecting pipe, with a small gap between the two U-shaped clamps and / or D-shaped pins. In this case, when it is necessary to remove the U-shaped clamps and / or D-shaped pins, one method is to use a multi-purpose screwdriver on one side of the U-shaped clamp or D-shaped pin. The fourth arc surface 35 serves as a prying surface, initially fitting against the outer wall of the connecting pipe, with each point on the fourth arc surface 35 acting as a fulcrum to pry the U-shaped clamp or D-shaped pin partially. Then, prying continues, using the third horizontal end face 32 as a prying surface, with each point on the third horizontal end face 32 acting as a fulcrum to pry the U-shaped clamp or D-shaped pin partially. If the U-shaped clamp or D-shaped pin is not yet removed, the connection between the third horizontal end face 32 and the vertical end face 33 is used as a prying surface, with each point there acting as a fulcrum, fitting against the outer wall of the connecting pipe, thus cooperating with the third arc surface 34 to remove the U-shaped clamp or D-shaped pin. Another scenario involves the multi-purpose screwdriver being positioned between two U-shaped clips and / or D-shaped pins. The point on the third transverse end face 32 serves as a fulcrum, and this fulcrum is in contact with the outer wall of the other U-shaped clip or D-shaped pin. The third arc surface 34 acts as a prying point, thus forming a lever. Figure 6 As shown. It should be noted that this example only uses a pipe; this multi-purpose screwdriver can also disassemble other parts in other locations, which are not limited here and will not be elaborated further. The ends of the third arc surface 34 and the fourth arc surface 35 furthest from the vertical end face 33 intersect to form a second tip 3a. The first tip 2a faces to one side, thus enabling a prying function. Compared to the first tip 2a, the curvature of the second tip 3a is always greater than that of the first tip 2a, so that the second tip 3a hooks out towards the side where the first tip 2a is located, forming a hook shape, thereby achieving a function of both prying and hooking.
[0041] Furthermore, such as Figure 3 As shown, a second groove 341 is provided on the third arc surface 34. The second groove 341 serves as a prying position and a hooking position. The outer wall of the U-shaped clip and D-shaped pin on the pipeline can fit against the inner wall of the first groove 221, so that the U-shaped clip and D-shaped pin on the pipeline are placed in the prying position and the hooking position. It can match the position and shape of the U-shaped clip and D-shaped pin on the pipeline, ensuring that the multi-purpose screwdriver tool can be quickly aligned with the U-shaped clip and D-shaped pin during operation, reducing operational errors caused by positional deviations, thereby improving work efficiency. Furthermore, the second groove 341, as a prying position and a hooking position, can cooperate with the prying surface to pry the U-shaped clip and D-shaped pin, and hook the U-shaped clip and D-shaped pin, so as to pry out and hook out and disassemble the U-shaped clip and D-shaped pin, further improving work efficiency.
[0042] It should be noted that, for smaller U-shaped clips and D-shaped pins, the third arc surface 34 can be used to first enter the U-shaped clip or D-shaped pin through the second tip 3a. The third arc surface 34 serves as the initial prying point, cooperating with the fourth arc surface 35 as the prying surface to pry open the U-shaped clip or D-shaped pin. When the gap between the U-shaped clip or D-shaped pin and the pipeline increases, the second groove 341 can then serve as the prying point, cooperating with the fourth arc surface 35 as the prying surface to pry open and disassemble the U-shaped clip or D-shaped pin.
[0043] When the spacing between the various U-shaped clamps and D-shaped pins on the pipeline is large, the first disassembly / reassembly part 2 can be used to pry and disassemble the U-shaped clamps and D-shaped pins, such as... Figure 5 As shown. When the spacing between the various U-shaped clips and D-shaped pins on the pipeline is small, the first tip 2a of the first disassembly part 2 cannot enter the U-shaped clips and D-shaped pins. Therefore, the second disassembly part 3 can be used to pry and hook the U-shaped clips and D-shaped pins for disassembly. Figure 6 As shown. In addition, whether the first disassembly / assembly part 2 or the second disassembly / assembly part 3 is used to pry open and disassemble the U-shaped clips and D-shaped pins depends on the operator's usage habits and the site conditions. The specific operating method is not limited here.
[0044] Furthermore, such as Figure 3 As shown, a second rubber pad 36 is provided on the second groove 341. The second rubber pad 36 is arc-shaped, and the side wall of the second rubber pad 36 facing the fourth arc surface 35 is connected to the inner wall of the second groove 341. This can prevent the second groove 341 from having a hard collision with the target part when the screwdriver is used, thereby avoiding wear between the second groove 341 and the target part and reducing the amount of wear. The second rubber pad 36 is provided with a plurality of second protrusions 37, which are spaced apart along the side wall of the second rubber pad 36 away from the third arc surface 34. This can increase the friction between the second rubber pad 36 and the target part and prevent slippage during prying or disassembly.
[0045] Furthermore, such as Figure 1 As shown, the second disassembly / assembly part 3 has a horizontally arranged through hole 38. The through hole 38 is used to insert the long end of the cotter pin, and the multi-purpose screwdriver is rotated to install or remove the cotter pin. Because the second disassembly / assembly part 3 has a horizontally arranged through hole 38, when installing the cotter pin, the long end of the cotter pin is inserted into the through hole 38, and the long end of the cotter pin bends during the rotation of the screwdriver, thereby locking the cotter pin in place. When removing the cotter pin, the long end of the cotter pin is inserted into the through hole 38, and the screwdriver is rotated in the opposite direction, gradually straightening the long end of the cotter pin until it is parallel to the short end, thus allowing the cotter pin to be removed by hand. Figure 7As shown, the operation is convenient and quick, improving work efficiency. Preferably, the through hole 38 is close to the third transverse end face 32, thereby avoiding interference between the third transverse end face 32 and the short end of the cotter pin when the through hole 38 is installed or removed.
[0046] Furthermore, such as Figure 1 As shown, a rubber ring 39 is provided inside the through hole 38. The outer wall of the rubber ring 39 fits against the inner wall of the through hole 38. This not only avoids hard collisions and friction between the cotter pin and the through hole 38, reducing the damage rate, but also increases the friction force.
[0047] Furthermore, such as Figure 1 As shown, it also includes a handle 4, which comprises a rubber sleeve 41, a first limiting part 42, and a second limiting part 43. The rubber sleeve 41, the first limiting part 42, and the second limiting part 43 are all fitted onto the outer wall of the handgrip 1. The surface of the rubber sleeve 41 is soft and has a certain elasticity, making the operator more comfortable when using the tool for extended periods and reducing hand fatigue caused by continuous force. The first limiting part 42 and the second limiting part 43 are respectively installed at both ends of the rubber sleeve 41 to limit the range of handgrip, helping the operator to more accurately grasp the effective part of the tool, avoiding operational errors caused by misoperation or improper hand position, preventing the operator from pinching or cutting their hands, and further improving work efficiency and safety. The rubber sleeve 41 has multiple spaced protrusions 411 to increase friction and prevent the hand from slipping during operation, especially in cases of sweaty hands or a humid environment, ensuring good grip performance and enhancing operational stability and reliability.
[0048] It should be noted that the total length, thickness, width, and other dimensions of the multi-purpose screwdriver used for hydraulic supports in this embodiment are determined according to the operator's habits and are not limited here. Furthermore, the multi-purpose screwdriver can not only disassemble and assemble U-shaped clips, D-shaped pins, and cotter pins, but also other parts, which will not be elaborated upon here.
[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A multipurpose lifter for hydraulic support characterized in that, The utility model relates to a multi-purpose spoon for hydraulic support, comprising a hand-held part (1), a first dismounting part (2) and a second dismounting part (3); The first dismounting part (2) and the second dismounting part (3) are respectively installed at two ends of the hand-held part (1); The two side walls of the first dismounting part (2) are curved towards one side and intersect to form a first pointed end (2a) towards a first direction; The two side walls of the second dismounting part (3) are curved towards one side and intersect to form a second pointed end (3a) towards a second direction, and the first direction and the second direction are opposite; The first dismounting part (2) and the second dismounting part (3) can be respectively inserted into a U-shaped clamp and a D-shaped pin on a pipeline of the hydraulic support through the first pointed end (2a) and the second pointed end (3a), the first dismounting part (2) can pry the U-shaped clamp and the D-shaped pin, and the second dismounting part (3) can pry and hook the U-shaped clamp and the D-shaped pin to dismount the U-shaped clamp and the D-shaped pin.
2. The multi-purpose spoon for hydraulic support according to claim 1, wherein: The first dismounting part (2) comprises a first horizontal end surface (21), and the two side walls of the first dismounting part (2) are a first arc surface (22) and a second arc surface (23); The first horizontal end surface (21), the second arc surface (23) and the first arc surface (22) are sequentially connected, and the first horizontal end surface (21) is connected to one end of the hand-held part (1); The second arc surface (23) is a prying surface, and the first arc surface (22) is a prying position, which can cooperate with the prying surface to pry the U-shaped clamp and the D-shaped pin.
3. The multi-purpose spoon for hydraulic support according to claim 2, wherein: A first groove (221) is arranged on the first arc surface (22), the first groove (221) is the prying position, and the outer wall of the U-shaped clamp and the D-shaped pin on the pipeline of the hydraulic support can be attached to the inner wall of the first groove (221) to place the U-shaped clamp and the D-shaped pin on the pipeline in the prying position.
4. The multi-purpose spoon for hydraulic support according to claim 3, wherein: A first rubber pad (24) is arranged in the first groove (221), the first rubber pad (24) is arc-shaped, and the side wall of the first rubber pad (24) facing the second arc surface (23) is connected to the inner wall of the first groove (221); A plurality of first protrusions (25) are arranged on the first rubber pad (24), and the plurality of first protrusions (25) are arranged at intervals along the side wall of the first rubber pad (24) away from the second arc surface (23).
5. The multi-purpose spoon for hydraulic support according to claim 1, wherein: The second dismounting part (3) comprises a second horizontal end surface (31), a third horizontal end surface (32) and a vertical end surface (33), and the two side walls of the second dismounting part (3) are a third arc surface (34) and a fourth arc surface (35). The second horizontal end surface (31), the vertical end surface (33), the third horizontal end surface (32), the fourth arc surface (35) and the third arc surface (34) are sequentially connected, and the second horizontal end surface (31) is connected with the bottom of the hand-held part (1); The fourth arc surface (35), the third horizontal end surface (32) and the connection between the third horizontal end surface (32) and the vertical end surface (33) are pry surfaces, the third arc surface (34) is a pry position, and the pry position can cooperate with the pry surfaces to pry the U-shaped card and the D-shaped pin; The third arc surface (34) is a hooking position, which can hook the U-shaped card and the D-shaped pin, and can disassemble the U-shaped card and the D-shaped pin when pulling the multipurpose opener.
6. The multipurpose opener for hydraulic supports according to claim 5, wherein: A second groove (341) is arranged on the third arc surface (34), the second groove (341) is the pry position and the hooking position, and the outer wall of the U-shaped card and the D-shaped pin on the pipeline can be attached to the inner wall of the second groove (341) to place the U-shaped card and the D-shaped pin on the pipeline in the pry position or the hooking position.
7. The multipurpose opener for hydraulic supports according to claim 6, wherein: A second rubber pad (36) is arranged on the second groove (341), the second rubber pad (36) is arc-shaped, and the side wall of the second rubber pad (36) facing the fourth arc surface (35) is connected with the inner wall of the second groove (341); A plurality of second protrusions (37) are arranged on the second rubber pad (36), and the plurality of second protrusions (37) are arranged at intervals along the side wall of the second rubber pad (36) away from the third arc surface (34).
8. The multipurpose opener for hydraulic supports according to claim 1, wherein: A through hole (38) horizontally arranged is arranged on the second disassembling part (3), the through hole (38) is used for inserting the long end of a split pin therein, and the multipurpose opener is rotated to disassemble the split pin.
9. The multipurpose opener for hydraulic supports according to claim 8, wherein: A rubber ring (39) is arranged in the through hole (38), and the outer wall of the rubber ring (39) is attached to the inner wall of the through hole (38).
10. The multipurpose opener for hydraulic supports according to claim 1, wherein: It further comprises a handle (4), and the handle (4) comprises a rubber sleeve (41), a first limiting part (42) and a second limiting part (43); The rubber sleeve (41), the first limiting part (42) and the second limiting part (43) are all arranged on the outer wall of the hand-held part (1), and the first limiting part (42) and the second limiting part (43) are respectively installed at both ends of the rubber sleeve (41) to limit the range of holding; A plurality of protrusions (411) arranged at intervals are arranged on the rubber sleeve (41) to increase the friction.