Multifunctional disassembling tool with quickly replaceable jaw

Abstract

The utility model discloses a multifunctional dismounting tool with quickly replaceable jaw, comprising: the crossbeam and at least two hook claw bodies of being equipped with the center pull rod, the crossbeam includes at least two crossbeam arms, every crossbeam arm is equipped with a plurality of locating slot of arranging distribution in turn along the length direction of crossbeam arm, the interval between any two adjacent locating slots is same, and the distance between the locating slot of all crossbeam arms near the center pull rod and the center pull rod is same, the one end of every hook claw body is equipped with the claw body, and the other end of every hook claw body is with crossbeam arm slidably connected, every hook claw body and crossbeam arm connection one end are equipped with the elastic positioning piece of being suitable for moving between any two adjacent locating slots and embedding, the utility model solves the technical problem that the current adjustable puller can not quickly adjust the size of opening and can not accurately control the position of hook claw, reaches the technical effect of quickly and accurately adjusting the position of hook claw.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tools, specifically to a multi-functional disassembly tool with quickly replaceable jaws. Background Technology

[0002] In the field of mechanical repair and assembly, pullers (also known as pullers or pullers) are a commonly used tool for disassembling parts such as bearings, gears, and couplings that are interference-fitted and mounted on shafts.

[0003] Traditional pullers typically consist of a central pull rod, a crossbeam, and two claws. The two claws are usually fixed to the crossbeam, and the opening direction and size of the claws are usually fixed. During maintenance, it is often necessary to prepare multiple pullers of different specifications to deal with parts of different sizes.

[0004] In the prior art, the crossbeam is provided with two slots, and the upper ends of the two hooks are respectively set in the slots by screws. The distance between the two hooks can be adjusted and fixed by adjusting the tightness of the screws. When it is necessary to change the opening direction of the hooks, the screws can be unscrewed and the hooks can be reinstalled.

[0005] This necessitates adjusting the tightness of the screws to regulate the position or orientation of the claws. The adjustment efficiency of the claws is low, and this method cannot precisely control the distance between the two claws and the central pull rod to be the same, resulting in uneven force distribution. Ultimately, this leads to failure in disassembling parts and damage to the puller. Utility Model Content

[0006] This application provides a multi-functional disassembly tool with quick jaw replacement to solve the technical problems of existing adjustable pullers that cannot quickly adjust the opening size and cannot accurately control the position of the claws.

[0007] This application provides a multi-functional disassembly tool with quick-change jaws, comprising: a crossbeam with a central pull rod and a claw body; the crossbeam includes at least two crossbeam arms evenly distributed around the central pull rod in the circumferential direction; each crossbeam arm has multiple equally spaced linearly arranged positioning slots in the radial direction about the central pull rod; all the innermost positioning slots are equidistant from the central pull rod; each claw body is arranged parallel to the central pull rod, one end of each claw body is slidably connected to a crossbeam arm, and the other end of each claw body has a claw that can move closer to or further away from the central pull rod; each claw body has an elastic positioning element at the end connected to the crossbeam arm that is suitable for embedding into the positioning slot, and the elastic positioning element switches between adjacent positioning slots when the claw body slides.

[0008] By adopting the above technical solution, a crossbeam arm with multiple equally spaced positioning slots is set, and an elastic positioning component is set on the hook body. The elastic positioning component automatically embeds into the positioning slot under the action of elastic force to complete the locking, so that the hook body can slide quickly on the crossbeam arm and achieve precise positioning. This eliminates the tedious steps of tightening or loosening screws in traditional tools, greatly improving the adjustment efficiency. At the same time, since the initial positioning slots on all crossbeam arms near the central tie rod are set to be the same distance from the central tie rod, when it is necessary to ensure the symmetry of the two hooks, it is only necessary to slide the hook body to the positioning slot at the same position as the central tie rod. This ensures that the pulling force is evenly applied to the part to be disassembled, effectively avoiding damage to parts or tools due to uneven loading, and improving the success rate of disassembly and operational safety.

[0009] Preferably, each positioning groove has a gradually opening shape in the direction from the bottom of the groove to the opening.

[0010] By adopting the above technical solution, the positioning groove is set to a shape that gradually opens from the bottom to the opening, ensuring that the elastic positioning component can be smoothly inserted and removed, reducing operating resistance, and further improving the smoothness and convenience of adjustment.

[0011] Preferably, all positioning slots on each beam arm are spherical slots and are continuously distributed, and any two adjacent positioning slots are close together end to end.

[0012] By adopting the above technical solution, all the positioning slots on the crossbeam arm are set as continuously distributed spherical slots, which allows the hook body to slide and adjust continuously on the crossbeam arm. The continuous and close arrangement of the positioning slots reduces the minimum scale of the hook body position adjustment, realizes the fine adjustment of the hook body position, and enables the equipment to adapt to more non-standard sized parts, improving the applicability and flexibility of the tool.

[0013] Preferably, each beam arm has a first hole at the end away from the central tie rod. A limiting post and a first spring are provided in the first hole, which are coaxially arranged with the first hole. One end of the first spring is fixedly located at the bottom of the first hole. One end of the limiting post is located in the first hole and is fixedly connected to the other end of the first spring. The other end of the limiting post is located outside the first hole and is arranged perpendicular to the surface of the beam arm. When the first spring is in a compressed state, the end of the limiting post away from the first spring is located in the first hole.

[0014] By adopting the above technical solution, a limiting structure consisting of a first spring and a limiting post is set at the end of the crossbeam arm to limit the sliding of the hook body, preventing the hook body from detaching from the crossbeam arm during sliding adjustment. At the same time, the limiting post can be pressed to facilitate the disassembly or installation of the hook body, realizing the quick replacement of the hook body and meeting diverse maintenance needs.

[0015] Preferably, each hook body has a socket at one end connected to the crossbeam arm that is suitable for insertion and sliding engagement of the crossbeam arm. The inner wall of the socket fits against the outer surface of the crossbeam arm, and the elastic positioning element is embedded in the inner wall of the socket.

[0016] By adopting the above technical solution, a socket suitable for the crossbeam arm is set on the hook body to ensure the connection stability between the hook body and the crossbeam arm and avoid shaking. The elastic positioning component is built into the socket to avoid the influence of the external environment on the elastic positioning component and improve the stability of the equipment.

[0017] Preferably, the inner wall of the insertion hole is provided with a mounting hole, and the elastic positioning member includes a second spring and a first positioning member coaxially arranged with the mounting hole. The second spring is located in the mounting hole, one end of the first positioning member is located in the mounting hole and is fixedly connected to one end of the second spring, and the other end of the first positioning member is located outside the mounting hole and abuts against the surface of the crossbeam arm.

[0018] By adopting the above technical solution, a standard elastic positioning component is formed by combining the second spring and the first positioning component and installing it in the mounting hole on the inner wall of the insertion hole. This makes it easy to replace the first positioning component separately after long-term wear and tear, without having to replace the entire hook body. This significantly reduces the long-term maintenance cost of the tool, extends the tool's service life, and the structure is simple and easy to manufacture.

[0019] Preferably, in the axial direction of the central tie rod, all positioning slots are provided on the end face of the crossbeam arm away from the claw body, the mounting hole penetrates the hook body on one side of the positioning slot, and the end of the mounting hole away from the crossbeam arm is provided with a threaded and detachable bolt, and one end of the second spring abuts against the bolt.

[0020] By adopting the above technical solution, the mounting hole is set through and a bolt is set in the mounting hole to limit the second spring. At the same time, the elastic force applied to the first positioning component can be changed by turning the bolt, thereby adjusting the tightness of the hook claw locking on the crossbeam arm as needed. This improves the adaptability of the equipment to different working scenarios, and the second spring and the first positioning component can be quickly removed by removing the bolt without removing the entire hook claw body.

[0021] Preferably, the hook body includes a mounting base and a hook component, with an insertion hole on the mounting base, one end of the hook component being detachably connected to the mounting base, and the claw body being located at the other end of the hook component.

[0022] By adopting the above technical solution, the hook body is modularly designed as a mounting base and a detachable hook component. This allows users to easily replace hook components of different specifications according to the shape and size of the parts to be disassembled, improving the versatility of the tool and reducing the user's tool purchase cost and carrying burden.

[0023] Preferably, the end of the hook claw near the mounting base is provided with a connecting post and a long strip-shaped connecting block. The two ends of the connecting post are connected to the hook claw and the connecting block respectively. The end of the mounting base near the hook claw is provided with a first groove with the same shape as the connecting block. The bottom of the first groove is provided with a first cavity suitable for the connecting block to rotate around the connecting post.

[0024] By adopting the above technical solution, connecting posts and connecting blocks are set on the claw component, and corresponding first grooves and first cavities are set on the mounting base, so that the claw component can be rotated and adjusted on the mounting base. This allows the orientation of the claw body to be flexibly adjusted according to the shape of the part, solving the problem that traditional pullers cannot adapt to different working environments due to the fixed direction of the claw, and expanding the application range of the tool.

[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. By cooperating with the elastic positioning component inside the hook body through the equally spaced positioning slots on the crossbeam arm, the position of the hook body is quickly and accurately locked, eliminating the tedious steps of tightening screws with traditional tools and significantly improving adjustment efficiency. At the same time, this design ensures that the operator can easily adjust the two hooks to the same position as the center pull rod, thereby ensuring the absolute uniform distribution of the pulling force, fundamentally avoiding damage to parts or tools due to uneven loading, and greatly improving the success rate and safety of disassembly operations. 2. It adopts a modular design, which decomposes the hook body into a mounting base and a detachable hook component. Different specifications of hooks can be replaced as needed to deal with various parts. At the same time, the hook component can be rotated and adjusted on the mounting base, so that the orientation of the hook body can be flexibly adjusted according to the shape of the part. This solves the problem that traditional pullers cannot adapt to different working environments due to the fixed orientation of the hooks, and expands the application range of the tool. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 An isometric view of the jaws of a multi-functional disassembly tool with quick-change jaws, provided in this application, with the jaws open inwards. Figure 2 A cross-sectional view of the jaws of a multi-functional disassembly tool with quick-change jaws, provided in this application, with the jaws facing outwards. Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 for Figure 2 A magnified view of a portion of region B in the middle; Figure 5 for Figure 2 A magnified view of a portion of region C in the middle; Figure 6 One of the isometric views of a multi-functional disassembly tool with quick-change jaws provided in this application, showing the claw body opening facing outwards and the hook and the mounting base separated. Figure 7 This is one of the isometric views of a multi-functional disassembly tool with quick-change jaws provided in this application, showing the claw body opening facing outwards and the hook and the mounting base separated.

[0028] Explanation of reference numerals in the attached drawings: 1. Central tie rod; 2. Crossbeam arm; 21. Positioning groove; 22. First hole; 23. First spring; 24. Limiting post; 3. Mounting base; 31. Insertion hole; 32. Mounting hole; 33. First groove; 34. First cavity; 4. Hook and claw component; 41. Claw body; 42. Connecting post; 43. Connecting block; 5. Elastic positioning component; 51. Second spring; 52. First positioning component; 6. Bolt. Detailed Implementation

[0029] This application provides a multi-functional disassembly tool with quick-change jaws to solve the technical problems in the prior art where adjustable pullers cannot quickly adjust the opening size and cannot accurately control the position of the claws.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Example 1 like Figures 1 to 7 The embodiment of this application provides a multi-functional disassembly tool with quick-change jaws, including: a crossbeam with a central pull rod 1 and a claw body; the crossbeam includes at least two crossbeam arms 2 evenly distributed around the central pull rod 1; each crossbeam arm 2 is provided with a plurality of equally spaced linearly arranged positioning grooves 21 in the radial direction about the central pull rod 1; all the innermost positioning grooves 21 are equidistant from the central pull rod 1; each claw body is arranged parallel to the central pull rod 1, one end of each claw body is slidably connected to the crossbeam arm 2, and the other end of each claw body is provided with a claw body 41 that can approach or move away from the central pull rod 1; each claw body is provided with an elastic positioning element 5 at the end connected to the crossbeam arm 2, which is suitable for embedding into the positioning groove 21, and the elastic positioning element 5 switches between adjacent positioning grooves 21 when the claw body slides.

[0036] Preferably, in the embodiment provided in this application, the crossbeam is screwed onto the vertically arranged central tie rod 1. The crossbeam includes two symmetrically arranged crossbeam arms 2, and each crossbeam arm 2 is connected to a hook body, such as... Figure 2 As shown, with the central tie rod 1 as the axis of symmetry, multiple positioning grooves 21 are symmetrically provided on the upper end surfaces of the two crossbeam arms 2, and the spacing between any two adjacent positioning grooves 21 is the same. The upper end of the hook body is slidably connected to the crossbeam arm 2 and is provided with an elastic positioning element 5 suitable for embedding into the positioning groove 21. The lower end of the hook body is provided with a claw body 41.

[0037] In this embodiment, by providing the cross beam arm 2 with a plurality of equally spaced positioning grooves 21 and arranging the elastic positioning member 5 on the claw body, the claw body can slide rapidly on the cross beam arm 2 and achieve accurate positioning, which eliminates the cumbersome step of tightening or loosening screws in traditional tools, greatly improves the adjustment efficiency. Meanwhile, by sliding the claw body to the positioning grooves 21 at the same distance from the central pull rod 1, it can be ensured that the pulling force acts uniformly on the part to be disassembled, effectively avoiding damage to the part or the tool caused by eccentric load, and improving the disassembly success rate and operation safety.

[0038] Further, in this embodiment, each positioning groove 21 is in a gradually opening shape in the direction from the groove bottom to the groove opening; all the positioning grooves 21 on each cross beam arm 2 are spherical grooves and are arranged in communication in sequence, and any two adjacent positioning grooves 21 are closely connected end to end.

[0039] Preferably, in the embodiment provided by the present application, as Figure 1 and Figure 2 shown, each positioning groove 21 is a spherical groove gradually opening from the groove bottom to the groove opening, all positioning grooves 21 on each cross beam arm 2 are continuously distributed, and two adjacent positioning grooves 21 are closely connected end to end, as Figure 2 shown, the cross-sectional shape at the joint of any two adjacent positioning grooves 21 is in a herringbone shape, which facilitates the smooth switching of the elastic positioning member 5 between adjacent positioning grooves 21.

[0040] In this embodiment, by arranging the positioning groove 21 in a shape gradually opening from the groove bottom to the groove opening, the smooth embedding and disengagement of the elastic positioning member 5 is ensured, and all positioning grooves 21 on the cross beam arm 2 are arranged as continuously distributed spherical grooves, so that the claw body can perform continuous sliding adjustment on the cross beam arm 2, realizing the fine adjustment of the position of the claw body, enabling the device to adapt to more parts with non-standard sizes, and improving the applicability and flexibility of the tool.

[0041] Further, in this embodiment, an end of each cross beam arm 2 away from the central pull rod 1 is provided with a first hole 22, a limiting column 24 and a first spring 23 coaxially arranged with the first hole 22 are arranged in the first hole 22, one end of the first spring 23 is fixedly arranged at the hole bottom of the first hole 22, one end of the limiting column 24 is located in the first hole 22 and is fixedly connected with the other end of the first spring 23, the other end of the limiting column 24 is located outside the first hole 22 and is arranged perpendicular to the surface of the cross beam arm 2, and when the first spring 23 is in a compressed state, the end of the limiting column 24 away from the first spring 23 is located in the first hole 22.

[0042] Preferably, in the embodiment provided by the present application, as Figure 2 and Figure 5As shown, each beam arm 2 has a first hole 22 on its upper surface away from the central tie rod 1. A first spring 23 is provided in the first hole 22. A limiting post 24 is provided at the upper end of the first spring 23. The limiting post 24 can slide up and down in the first hole 22. In the normal state of the first spring 23, the upper end of the limiting post 24 is located outside the first hole 22 and perpendicular to the upper surface of the beam arm 2.

[0043] In this embodiment, a limiting structure consisting of a first spring 23 and a limiting post 24 is provided at the end of the crossbeam arm 2 to limit the sliding of the hook body, preventing the hook body from detaching from the crossbeam arm 2 during sliding adjustment. At the same time, the limiting post 24 can be pressed to facilitate the disassembly or installation of the hook body.

[0044] Furthermore, in this embodiment, each hook body is provided with an insertion hole 31 at one end connected to the crossbeam arm 2, which is suitable for the crossbeam arm 2 to be inserted and slidably engaged. The inner wall of the insertion hole 31 is in contact with the outer surface of the crossbeam arm 2, and the elastic positioning member 5 is embedded in the inner wall of the insertion hole 31. The inner wall of the insertion hole 31 is provided with a mounting hole 32. The elastic positioning member 5 includes a second spring 51 and a first positioning member 52 coaxially arranged with the mounting hole 32. The second spring 51 is located in the mounting hole 32, one end of the first positioning member 52 is located in the mounting hole 32 and is fixedly connected to one end of the second spring 51, and the other end of the first positioning member 52 is located outside the mounting hole 32 and abuts against the surface of the crossbeam arm 2.

[0045] More preferably, in the embodiments provided in this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the upper end of the hook body is provided with an insertion hole 31, the outer peripheral wall of the crossbeam arm 2 is in contact with the inner wall of the insertion hole 31, the inner wall of the upper side of the insertion hole 31 is provided with an installation hole 32, a second spring 51 is provided in the installation hole 32, and a spherical first positioning member 52 is provided at the lower end of the second spring 51, less than half of the first positioning member 52 is located outside the installation hole 32.

[0046] In this embodiment, by providing a socket 31 on the hook body suitable for the insertion and installation of the crossbeam arm 2, the connection stability between the hook body and the crossbeam arm 2 is ensured and shaking is avoided. At the same time, a standard elastic positioning element 5 is formed by combining the second spring 51 and the first positioning element 52 and installed in the mounting hole 32 in the socket 31, so that the first positioning element 52 can be replaced separately after long-term use and wear.

[0047] Furthermore, in this embodiment, all positioning grooves 21 are provided on the end face of the crossbeam arm 2 away from the claw body 41 in the axial direction of the central tie rod 1. The mounting hole 32 penetrates the hook body on one side of the positioning groove 21. The end of the mounting hole 32 away from the crossbeam arm 2 is provided with a threaded and detachable bolt 6. One end of the second spring 51 abuts against the bolt 6.

[0048] More preferably, in the embodiments provided in this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the mounting slots are all set on the upper end face of the crossbeam arm 2, and the mounting hole 32 passes through the end of the hook body located above the crossbeam arm 2. A threaded bolt 6 is provided at the upper opening of the mounting hole 32, and the lower end of the bolt 6 is located inside the mounting hole 32 and abuts against the upper end of the second spring 51.

[0049] In this embodiment, the mounting hole 32 is provided through the second spring 51 and the bolt 6 is provided in the mounting hole 32 to limit the second spring 51. At the same time, the elastic force applied to the first positioning member 52 can be changed by turning the bolt 6, thereby adjusting the tightness of the hook on the crossbeam arm 2 as needed. The second spring 51 and the first positioning member 52 can be quickly removed by removing the bolt 6 without removing the entire hook body.

[0050] Furthermore, in this embodiment, the hook body includes a mounting base 3 and a hook component 4. An insertion hole 31 is provided on the mounting base 3. One end of the hook component 4 is detachably connected to the mounting base 3, and the claw body 41 is provided at the other end of the hook component 4. A connecting post 42 and a long strip-shaped connecting block 43 are provided on the end of the hook component 4 near the mounting base 3. The two ends of the connecting post 42 are respectively connected to the hook component 4 and the connecting block 43. A first groove 33 with the same shape as the connecting block 43 is provided on the end of the mounting base 3 near the hook component 4. A first cavity 34 suitable for the connecting block 43 to rotate about the connecting post 42 is provided at the bottom of the first groove 33.

[0051] More preferably, in the embodiments provided in this application, such as Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the hook body is composed of a mounting base 3 and a hook component 4. The claw body 41 is located at the lower end of the hook component 4. The upper end surface of the hook component 4 is provided with a connecting post 42 and a long strip-shaped connecting block 43. The connecting post 42 and the connecting block 43 are connected at the center. The connecting post 42 and the connecting block 43 are in a "T" shape. The lower end surface of the mounting base 3 is provided with a first groove 33 and a first cavity 34 that are interconnected from bottom to top. The shape of the first groove 33 is the same as that of the connecting block 43. The first cavity 34 is a disc-shaped cavity with the same diameter as the maximum diameter of the connecting block 43.

[0052] In this embodiment, by modularly designing the hook body into a mounting base 3 and a detachable hook component 4, users can easily replace hook components 4 of different specifications according to the shape and size of the parts to be disassembled, thereby improving the versatility of the tool and reducing the user's tool purchase cost and carrying burden. A connecting post 42 and a connecting block 43 are provided on the hook component 4, and a first groove 33 and a first cavity 34 are correspondingly provided on the mounting base 3, so that the hook component 4 can be rotated and adjusted on the mounting base 3.

[0053] Working principle: When in use, press the limiting piece to insert the crossbeam arm 2 into the insertion hole 31 on the mounting base 3. Then, insert the first positioning piece 52 and the second spring 51 through the mounting hole 32 in sequence and screw in the bolt 6 to adjust the tightness of the second spring 51. Finally, align the connecting block 43 at the upper end of the hook claw 4 with the first groove 33 and insert it. Rotate it 90° forward and backward as needed to adjust the orientation of the claw body 41, and slide to adjust the position of the two hook claw bodies.

[0054] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0055] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0056] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A multi-functional disassembly tool with quickly interchangeable jaws, characterized in that: The device includes a crossbeam with a central tie rod (1) and a claw body; the crossbeam includes at least two crossbeam arms (2) evenly distributed around the central tie rod (1); each crossbeam arm (2) is provided with multiple equally spaced linearly arranged positioning grooves (21) in the radial direction with the central tie rod (1) as the axis; all the innermost positioning grooves (21) are at the same distance from the central tie rod (1); each claw body is arranged parallel to the central tie rod (1), one end of each claw body is slidably connected to the crossbeam arm (2), and the other end of each claw body is provided with a claw body (41) that can approach or move away from the central tie rod (1); each claw body is provided with an elastic positioning element (5) suitable for embedding in the positioning groove (21) at the end connected to the crossbeam arm (2), and the elastic positioning element (5) switches between adjacent positioning grooves (21) when the claw body slides.

2. The multi-functional disassembly tool with quickly interchangeable jaws according to claim 1, characterized in that, Each of the positioning slots (21) is gradually opening in the direction from the bottom of the slot to the opening.

3. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 2, characterized in that, All positioning slots (21) on each of the beam arms (2) are spherical slots and are continuously distributed, and any two adjacent positioning slots (21) are close together end to end.

4. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 1, characterized in that, Each of the beam arms (2) has a first hole (22) at one end away from the central tie rod (1). The first hole (22) contains a limiting post (24) and a first spring (23) coaxially arranged with the first hole (22). One end of the first spring (23) is fixedly disposed at the bottom of the first hole (22). One end of the limiting post (24) is located inside the first hole (22) and is fixedly connected to the other end of the first spring (23). The other end of the limiting post (24) is located outside the first hole (22) and is arranged perpendicular to the surface of the beam arm (2). When the first spring (23) is in a compressed state, the end of the limiting post (24) away from the first spring (23) is located inside the first hole (22).

5. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 1, characterized in that, Each of the hook bodies is provided with a socket (31) at one end connected to the crossbeam arm (2) for insertion and sliding engagement of the crossbeam arm (2). The inner wall of the socket (31) is in contact with the outer surface of the crossbeam arm (2), and the elastic positioning member (5) is embedded in the inner wall of the socket (31).

6. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 5, characterized in that, The inner wall of the insertion hole (31) is provided with an installation hole (32). The elastic positioning member (5) includes a second spring (51) and a first positioning member (52) coaxially arranged with the installation hole (32). The second spring (51) is located inside the installation hole (32). One end of the first positioning member (52) is located inside the installation hole (32) and is fixedly connected to one end of the second spring (51). The other end of the first positioning member (52) is located outside the installation hole (32) and abuts against the surface of the crossbeam arm (2).

7. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 6, characterized in that, Along the axial direction of the central tie rod (1), all the positioning grooves (21) are provided on the end face of the crossbeam arm (2) away from the claw body (41). The mounting hole (32) passes through the claw body on one side of the positioning groove (21). The end of the mounting hole (32) away from the crossbeam arm (2) is provided with a threaded and detachable bolt (6). One end of the second spring (51) abuts against the bolt (6).

8. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 6, characterized in that, The hook body includes a mounting base (3) and a hook component (4). The insertion hole (31) is provided on the mounting base (3). One end of the hook component (4) is detachably connected to the mounting base (3), and the claw body (41) is provided at the other end of the hook component (4).

9. A multi-functional disassembly tool with quickly interchangeable jaws according to claim 8, characterized in that, The hook claw (4) has a connecting post (42) and a long strip connecting block (43) on one end near the mounting base (3). The two ends of the connecting post (42) are connected to the hook claw (4) and the connecting block (43) respectively. The mounting base (3) has a first groove (33) with the same shape as the connecting block (43) on one end near the hook claw (4). The bottom of the first groove (33) has a first cavity (34) suitable for the connecting block (43) to rotate around the connecting post (42).

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