Mounting and dismounting tool

Abstract

The utility model belongs to the technical field of hardware workpieces, and discloses a mounting and dismounting tool. The mounting and dismounting tool comprises a handle, a movable wrench head, a first adjusting assembly and a second adjusting assembly. The handle extends along a first direction; a first fixing plate of the first adjusting assembly is fixedly connected with the handle, a threaded rod is rotationally connected with the first fixing plate in the second direction, the threaded rod is in threaded connection with a movable part, the threaded rod rotates to drive the movable part to move in the second direction, and the first direction is perpendicular to the second direction; the optical axis portion of a gear shaft of the second adjusting assembly penetrates through the support and is rotationally connected with the support, the optical axis portion of the gear shaft is fixedly connected with the movable wrench head, the rack is fixedly connected with the movable part, the rack is meshed with the gear portion of the gear shaft, and the rack moves in the second direction to drive the gear shaft to rotate so as to adjust the included angle between the movable wrench head and the handle. The mounting and dismounting tool can be used for dismounting and mounting a bolt or a nut in a narrow space, and the operation efficiency and convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of hardware workpiece technology, and in particular to an installation and disassembly tool. Background Technology

[0002] A tobacco shredder is a device used to cut tobacco leaves into thin shreds for making cigarettes and cigars. When repairing a tobacco shredder, it is usually necessary to use installation and disassembly tools to remove and reinstall the bolts or nuts on the shredder. A wrench is generally used for disassembly and installation.

[0003] In the current use of installation and disassembly tools, most of them are straight rod fixed type, and the end cannot be angled. When facing some relatively narrow gaps in the shredder, the straight rod type of installation and disassembly tool may not be convenient for rotating and disassembling bolts or nuts, resulting in disassembly difficulties and certain limitations. Utility Model Content

[0004] The purpose of this utility model is to provide an installation and disassembly tool to solve the problem of bolts or nuts being inconvenient to install and disassemble in narrow spaces, thereby improving operational efficiency and convenience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An installation and disassembly tool, comprising:

[0007] A handle that extends in a first direction;

[0008] Adjustable wrench head;

[0009] The first adjustment component includes a first fixed plate, a threaded rod, and a movable part. The first fixed plate is fixedly connected to the handle. The threaded rod is rotatably connected to the first fixed plate along a second direction. The movable part is provided with a threaded hole along the second direction. The threaded rod passes through the threaded hole and is threadedly connected to the movable part. The rotation of the threaded rod drives the movable part to move along the second direction. The first direction is perpendicular to the second direction.

[0010] The second adjustment component includes a rack, a gear shaft, and a bracket. The bracket is fixedly connected to the handle. The optical shaft portion of the gear shaft passes through the bracket and is rotatably connected to the bracket. The optical shaft portion of the gear shaft is fixedly connected to the adjustable wrench head. The rack is fixedly connected to the movable component. The rack meshes with the gear portion of the gear shaft. The rack moves along the second direction, causing the gear shaft to rotate, thereby adjusting the angle between the adjustable wrench head and the handle.

[0011] As an optional solution for installing and disassembling tools, the first adjustment assembly also includes a limiting rod, which is spaced apart from the threaded rod and fixedly connected to the first fixed plate. The movable part is provided with a limiting hole, through which the limiting rod passes and is slidably connected to the movable part.

[0012] As an alternative solution for installing and disassembling tools, the first adjustment assembly includes two first fixing plates, which are fixedly connected to opposite sides of the handle along the second direction, and the threaded rod is rotatably connected to the two first fixing plates.

[0013] As an alternative solution for installing and disassembling tools, the threaded rod includes a threaded portion and an operating portion connected together. The operating portion is located on the side of the first fixed plate opposite to the handle. The operating portion rotates and drives the threaded rod to rotate.

[0014] As an alternative solution for installing and disassembling tools, the bracket includes two second fixed plates spaced apart, with the adjustable wrench head located between the two second fixed plates, and both ends of the optical shaft portion of the gear shaft rotatably connected to the two second fixed plates respectively.

[0015] As an alternative solution for installing and disassembling tools, the gear shaft includes a gear and a connecting shaft. The connecting shaft includes a large-diameter shaft section and a small-diameter shaft section connected together. The large-diameter shaft section is fixedly connected to the adjustable wrench head and rotatably connected to the bracket. The small-diameter shaft section has a gear passing through it and is fixedly connected to the gear. The gear abuts against the connecting surface of the large-diameter shaft section and the small-diameter shaft section.

[0016] As an alternative solution for installing and disassembling tools, the adjustable wrench head includes a fixed plate with a connecting hole at one end near the handle, through which the optical shaft portion of the gear shaft passes and is interference-fitted.

[0017] As an alternative solution for installing and disassembling tools, the adjustable wrench head also includes a movable plate and an adjusting worm gear. The adjusting worm gear is rotatably disposed in a groove of the fixed plate along the second direction. The movable plate is partially slidably disposed in the groove. The movable plate is provided with a plurality of meshing teeth along the second direction. The adjusting worm gear meshes with the plurality of meshing teeth to adjust the size of the opening formed by the movable plate and the fixed plate.

[0018] As an alternative to the installation and disassembly tool, the installation and disassembly tool also includes a V-shaped wrench head connected to the end of the handle opposite to the movable wrench head.

[0019] As an alternative to installing or removing tools, the V-wrench has a V-groove at the end away from the handle, and the inner wall of the V-groove has at least two locking teeth.

[0020] Beneficial effects:

[0021] This utility model provides an installation and disassembly tool, which includes a handle, an adjustable wrench head, a first adjustment component, and a second adjustment component. The angle between the adjustable wrench head and the handle is adjusted by the cooperation of the first and second adjustment components. During use, turning the threaded rod causes it to rotate, which drives the movable part and the rack to move in a second direction. The rack meshes with the gear shaft, causing the gear shaft to rotate, thereby adjusting the angle between the adjustable wrench head and the handle. This installation and disassembly tool can disassemble and install bolts or nuts in narrow spaces, improving operational efficiency and convenience. Attached Figure Description

[0022] Figure 1 This is a first schematic diagram of the installation and disassembly tool provided in this embodiment of the utility model;

[0023] Figure 2 This is a first schematic diagram of the first adjustment component and the second adjustment component provided in this embodiment of the present utility model;

[0024] Figure 3 This is a second schematic diagram of the first adjustment component and the second adjustment component provided in this embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustable wrench head provided in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the V-shaped wrench head provided in this embodiment of the utility model;

[0027] Figure 6 This is a second schematic diagram of the installation and disassembly tool provided in this embodiment of the utility model.

[0028] In the picture:

[0029] 100. Shredder; 1. Handle;

[0030] 2. Adjustable wrench head; 21. Fixed plate; 22. Movable plate; 23. Adjusting worm gear; 211. Connecting hole; 212. Adjusting hole; 213. Slide groove; 221. Meshing teeth;

[0031] 3. First adjusting assembly; 31. First fixing plate; 32. Threaded rod; 33. Movable part; 34. Limiting rod; 311. First mounting hole; 312. Second mounting hole; 321. Threaded part; 322. Operating part; 331. Threaded hole; 332. Limiting hole;

[0032] 4. Second adjusting assembly; 41. Rack; 42. Gear shaft; 43. Bracket; 421. Gear; 422. Connecting shaft; 4221. Large diameter shaft section; 4222. Small diameter shaft section; 431. Third mounting hole; 432. Second fixing plate; 433. Base plate;

[0033] 5. V-shaped wrench head; 51. V-groove; 52. Locking teeth. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 "under" the second feature includes the first feature 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.

[0037] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] This embodiment provides an installation and disassembly tool, such as... Figures 1-6As shown, the installation and disassembly tool includes a handle 1, an adjustable wrench head 2, a first adjustment component 3, and a second adjustment component 4. The handle 1 extends along a first direction; the first adjustment assembly 3 includes a first fixed plate 31, a threaded rod 32, and a movable part 33. The first fixed plate 31 is fixedly connected to the handle 1. The threaded rod 32 is rotatably connected to the first fixed plate 31 along a second direction. The movable part 33 is provided with a threaded hole 331 along the second direction. The threaded rod 32 passes through the threaded hole 331 and is threadedly connected to the movable part 33. The rotation of the threaded rod 32 drives the movable part 33 to move along the second direction. The first direction is perpendicular to the second direction. The second adjustment assembly 4 includes a rack 41, a gear shaft 42, and a bracket 43. The bracket 43 is fixedly connected to the handle 1. The optical axis of the gear shaft 42 passes through the bracket 43 and is rotatably connected to the bracket 43. The optical axis of the gear shaft 42 is fixedly connected to the movable wrench head 2. The rack 41 is fixedly connected to the movable part 33. The rack 41 meshes with the gear part of the gear shaft 42. The movement of the rack 41 along the second direction drives the gear shaft 42 to rotate, thereby adjusting the included angle between the movable wrench head 2 and the handle 1.

[0039] This installation and disassembly tool adjusts the angle between the adjustable wrench head 2 and the handle 1 through the cooperation of the first adjusting component 3 and the second adjusting component 4. During use, turning the threaded rod 32 rotates it, causing the movable part 33 and the rack 41 to move in the second direction. The rack 41 meshes with the gear shaft 42, causing the gear shaft 42 to rotate, thereby adjusting the angle between the adjustable wrench head 2 and the handle 1. This installation and disassembly tool enables the disassembly and installation of bolts or nuts in confined spaces, improving operational efficiency and convenience.

[0040] like Figure 6 As shown, this installation and disassembly tool is suitable for installing and removing bolts or nuts within the relatively confined space of the shredder 100. Besides the shredder 100, this tool is also suitable for installing and removing bolts or nuts in various machine tools, electronic devices, and other applications with compact internal structures and limited operating space, improving operational efficiency and convenience. The shredder 100 is existing technology, and its internal structure will not be described in detail here.

[0041] Specifically, the gear shaft 42 passes through the bracket 43 along a third direction, which is perpendicular to the first and second directions. The bracket 43 can effectively limit unnecessary displacement of the gear shaft 42 in other directions, ensuring the stability of the rotation of the gear shaft 42, thereby improving the stability of the second adjustment component 4.

[0042] like Figures 1-3As shown, the first adjusting component 3 also includes a limiting rod 34, which is spaced apart from the threaded rod 32 and fixedly connected to the first fixed plate 31. The movable part 33 is provided with a limiting hole 332, through which the limiting rod 34 is slidably connected to the movable part 33. The limiting rod 34 guides the movable part 33. When the threaded rod 32 is turned, causing the movable part 33 to move in the second direction, the limiting rod 34 passes through the limiting hole 332 of the movable part 33 and is slidably connected to it. This ensures that the movable part 33 can only move linearly along the direction of the limiting rod 34, i.e., the second direction, preventing the movable part 33 from deviating and shaking, which would affect the adjustment accuracy. This ensures that the rack 41 moves precisely and that the rotation angle of the gear shaft 42 is controllable. At the same time, it enhances the structural stability, distributes the force on the movable part 33, and prevents deformation and damage to the threaded rod 32.

[0043] Optionally, the limiting rod 34 is a cylindrical limiting rod 34 with a smooth surface and uniform diameter. Correspondingly, the limiting hole 332 is a circular through hole, providing smooth sliding guidance for the moving part 33 and ensuring its linear movement. Optionally, the limiting rod 34 is a square limiting rod 34 with four flat sides. Correspondingly, the limiting hole 332 is a square through hole, which can better restrict the rotation of the moving part 33.

[0044] like Figures 1-3 As shown, the first adjustment assembly 3 includes two first fixing plates 31, which are fixedly connected to opposite sides of the handle 1 along a second direction. A threaded rod 32 is rotatably connected to the two first fixing plates 31, and a limiting rod 34 is fixedly connected to the two first fixing plates 31. The two first fixing plates 31 provide a more stable support structure for the first adjustment assembly 3. They jointly bear the force generated during tool installation and disassembly operations, dispersing stress and preventing deformation or damage due to uneven force distribution, thus ensuring the stable operation of the first adjustment assembly 3.

[0045] Specifically, the first fixed plate 31 has a first mounting hole 311 and a second mounting hole 312. A bearing is installed in the first mounting hole 311, and the hole wall of the first mounting hole 311 is connected to the outer ring of the bearing. The threaded rod 32 is connected to the inner ring of the bearing, thereby achieving a rotatable connection between the threaded rod 32 and the first fixed plate 31. The limiting rod 34 is interference-fitted with the second mounting hole 312, ensuring that the limiting rod 34 will not rotate during the movement of the moving part 33 in the second direction, thus guaranteeing accurate limiting. Specifically, the first fixed plate 31 and the handle 1 are bolted or welded together.

[0046] like Figure 2 and Figure 3As shown, the threaded rod 32 includes a threaded portion 321 and an operating portion 322 connected to each other. The operating portion 322 is located on the side of the first fixed plate 31 opposite to the handle 1. Rotating the operating portion 322 causes the threaded rod 32 to rotate. The operating portion 322 is located on the side of the handle 1, which facilitates the adjustment of the rotation angle of the threaded rod 32, thereby achieving precise adjustment of the angle between the adjustable wrench head 2 and the handle 1. Specifically, the operating portion 322 is hexagonal, similar in shape to a nut, and has fine striped friction texture on its side, which increases friction, prevents slippage during tightening, and makes the operation more stable and efficient.

[0047] like Figures 1-3 As shown, the bracket 43 includes two spaced-apart second fixing plates 432, with the adjustable wrench head 2 located between the two second fixing plates 432. Both ends of the optical shaft of the gear shaft 42 are rotatably connected to the two second fixing plates 432 respectively. The two second fixing plates 432 provide a more stable support structure for the second adjustment assembly 4. The two second fixing plates 432 jointly bear the force generated by the adjustable wrench head 2 during operation, dispersing stress and preventing deformation or damage due to uneven force distribution, thus ensuring the stable operation of the second adjustment assembly 4.

[0048] Specifically, the second fixing plate 432 is provided with a third mounting hole 431, and a bearing is provided in the third mounting hole 431. The wall of the third mounting hole 431 is connected to the outer ring of the bearing, and the gear shaft 42 is connected to the inner ring of the bearing, thereby realizing the rotational connection between the gear shaft 42 and the second fixing plate 432. In other embodiments, the gear shaft 42 directly contacts the wall of the third mounting hole 431, which can also realize the rotational connection between the gear shaft 42 and the second fixing plate 432. Specifically, the bracket 43 also includes a base plate 433, which is bolted or welded to the end of the handle 1. Two second fixing plates 432 are provided on the side of the base plate 433 away from the handle 1, and the second fixing plates 432 are arranged perpendicularly to the base plate 433.

[0049] like Figure 2 and Figure 3 As shown, the gear shaft 42 includes a gear 421 and a connecting shaft 422. The connecting shaft 422 includes a large-diameter shaft section 4221 and a small-diameter shaft section 4222 connected to each other. The large-diameter shaft section 4221 is fixedly connected to the adjustable wrench head 2 and rotatably connected to the bracket 43. The small-diameter shaft section 4222 passes through the gear 421 and is fixedly connected to the gear 421. The gear 421 abuts against the connecting surfaces of the large-diameter shaft section 4221 and the small-diameter shaft section 4222. This reduces the gap between components and unnecessary space occupation, making the entire gear shaft 42 structure simpler and more compact. The gear 421 abuts against the connecting surface to prevent the gear 421 from contacting the second fixed plate 432, avoiding frictional damage to the gear 421 and the second fixed plate 432. Specifically, the large-diameter shaft section 4221 is the smooth shaft part, and the small-diameter shaft section 4222 forms the gear part after the gear 421 is fitted onto it.

[0050] like Figures 1-4 As shown, the adjustable wrench head 2 includes a fixed plate 21. A connecting hole 211 is provided at one end of the fixed plate 21 near the handle 1. The optical shaft portion of the gear shaft 42 passes through the connecting hole 211 and is interference-fitted. The interference fit between the optical shaft portion and the connecting hole 211 ensures a tight connection between the adjustable wrench head 2 and the gear shaft 42. When using the installation and disassembly tool, whether applying a large torque to install or remove bolts or nuts, or adjusting the angle between the adjustable wrench head 2 and the handle 1, the two will not easily experience relative displacement or loosening, ensuring the overall stability of the installation and disassembly tool structure.

[0051] Furthermore, such as Figure 4 As shown, the adjustable wrench head 2 also includes a movable plate 22 and an adjusting worm 23. The adjusting worm 23 is rotatably disposed within a groove 213 of the fixed plate 21 along a second direction. The movable plate 22 is partially slidably disposed within the groove 213. The movable plate 22 has multiple meshing teeth 221 along the second direction. The adjusting worm 23 meshes with the multiple meshing teeth 221 to adjust the size of the opening formed between the movable plate 22 and the fixed plate 21. The opening size of the adjustable wrench head 2 can be flexibly adjusted according to bolts or nuts of different sizes, precisely adapting to work requirements and improving the accuracy and efficiency of operation. Specifically, the fixed plate 21 also has an adjusting hole 212 for rotating the adjusting worm 23.

[0052] Specifically, when adjusting the size of the opening formed by the movable plate 22 and the fixed plate 21, the operator manually rotates the adjusting worm 23. Since the adjusting worm 23 is rotatably mounted in the groove 213 of the fixed plate 21 along the second direction, it begins to rotate around its own axis under the action of rotational force. The adjusting worm 23 and the multiple meshing teeth 221 of the movable plate 22, arranged along the second direction, mesh with each other. As the adjusting worm 23 rotates, relative motion occurs between its thread and the meshing teeth 221, converting the rotational motion of the worm into the linear motion of the movable plate 22. Depending on the direction of rotation of the adjusting worm 23, the movable plate 22 will slide accordingly along the second direction within the groove 213. If the worm gear 23 is rotated clockwise, the movable plate 22 will slide along the slide groove 213 in one direction under the meshing action, so that the opening between the movable plate 22 and the fixed plate 21 gradually becomes smaller; conversely, if the worm gear 23 is rotated counterclockwise, the movable plate 22 will slide in the opposite direction, and the opening formed by the movable plate 22 and the fixed plate 21 gradually becomes larger.

[0053] like Figures 1-3 , Figure 5As shown, the installation and disassembly tool also includes a V-shaped wrench head 5, which is connected to the end of the handle 1 opposite to the adjustable wrench head 2. The V-shaped wrench head 5 can be used to operate nuts or bolts within a certain size range, expanding the applicability of the installation and disassembly tool and meeting more diverse work needs. When there is sufficient working space, the adjustable wrench head 2 or the V-shaped wrench head 5 can be selected aptly according to the size of the bolt or nut.

[0054] like Figure 5 As shown, the V-shaped wrench has a V-groove 51 at the end away from the handle 1, and at least two locking teeth 52 are provided on the inner wall of the V-groove 51. The V-groove 51, in conjunction with the at least two locking teeth 52 on the inner wall, enhances the clamping stability of the V-shaped wrench head 5 on the bolt or nut, effectively preventing the nut or bolt from sliding or coming out of the V-groove 51, ensuring smooth operation. During use, align the V-groove 51 of the V-shaped wrench with the nut or bolt, so that the two inclined surfaces of the V-groove 51 fit against the side of the nut or bolt, and align the edges of the nut or bolt with the locking teeth 52 on the inner wall of the V-groove 51, so that the edges of the nut or bolt are engaged in the two locking teeth 52, ensuring a tight connection between the V-shaped wrench and the nut or bolt, and preventing slippage during operation.

[0055] In this embodiment, both walls of the V-shaped groove 51 are provided with a plurality of locking teeth 52. In other embodiments, one of the two walls of the V-shaped groove 51 is a smooth plane, and the other is provided with a plurality of locking teeth 52.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An installation and disassembly tool, characterized in that, include: Handle (1), the handle (1) extending along a first direction; Adjustable wrench head (2); The first adjustment component (3) includes a first fixed plate (31), a threaded rod (32), and a movable part (33). The first fixed plate (31) is fixedly connected to the handle (1). The threaded rod (32) is rotatably connected to the first fixed plate (31) along a second direction. The movable part (33) is provided with a threaded hole (331) along the second direction. The threaded rod (32) passes through the threaded hole (331) and is threadedly connected to the movable part (33). The rotation of the threaded rod (32) drives the movable part (33) to move along the second direction. The first direction is perpendicular to the second direction. The second adjustment component (4) includes a rack (41), a gear shaft (42), and a bracket (43). The bracket (43) is fixedly connected to the handle (1). The optical axis of the gear shaft (42) passes through the bracket (43) and is rotatably connected to the bracket (43). The optical axis of the gear shaft (42) is fixedly connected to the movable wrench head (2). The rack (41) is fixedly connected to the movable part (33). The rack (41) meshes with the gear part of the gear shaft (42). The rack (41) moves along the second direction to drive the gear shaft (42) to rotate, thereby adjusting the angle between the movable wrench head (2) and the handle (1).

2. The installation and disassembly tool according to claim 1, characterized in that, The first adjustment component (3) further includes a limiting rod (34), which is spaced apart from the threaded rod (32) and fixedly connected to the first fixing plate (31). The movable part (33) is provided with a limiting hole (332), and the limiting rod (34) passes through the limiting hole (332) and is slidably connected to the movable part (33).

3. The installation and disassembly tool according to claim 2, characterized in that, The first adjustment component (3) includes two first fixing plates (31), which are fixedly connected to the opposite sides of the handle (1) along the second direction, and the threaded rod (32) is rotatably connected to the two first fixing plates (31).

4. The installation and disassembly tool according to claim 1, characterized in that, The threaded rod (32) includes a threaded part (321) and an operating part (322) connected to each other. The operating part (322) is disposed on the side of the first fixing plate (31) away from the handle (1). The operating part (322) rotates and drives the threaded rod (32) to rotate.

5. The installation and disassembly tool according to claim 1, characterized in that, The bracket (43) includes two second fixing plates (432) spaced apart, the movable wrench head (2) is located between the two second fixing plates (432), and the two ends of the optical shaft of the gear shaft (42) are rotatably connected to the two second fixing plates (432) respectively.

6. The installation and disassembly tool according to claim 1, characterized in that, The gear shaft (42) includes a gear (421) and a connecting shaft (422). The connecting shaft (422) includes a large-diameter shaft section (4221) and a small-diameter shaft section (4222) connected to each other. The large-diameter shaft section (4221) is fixedly connected to the movable wrench head (2) and rotatably connected to the bracket (43). The small-diameter shaft section (4222) passes through the gear (421) and is fixedly connected to the gear (421). The gear (421) abuts against the connecting surface of the large-diameter shaft section (4221) and the small-diameter shaft section (4222).

7. The installation and disassembly tool according to claim 1, characterized in that, The movable wrench head (2) includes a fixed plate (21), and the fixed plate (21) has a connecting hole (211) at one end near the handle (1). The optical shaft of the gear shaft (42) passes through the connecting hole (211) and is interference-fitted.

8. The installation and disassembly tool according to claim 7, characterized in that, The adjustable wrench head (2) also includes a movable plate (22) and an adjusting worm (23). The adjusting worm (23) is rotatably disposed in the groove (213) of the fixed plate (21) along the second direction. The movable plate (22) is partially slidably disposed in the groove (213). The movable plate (22) is provided with a plurality of meshing teeth (221) along the second direction. The adjusting worm (23) meshes with the plurality of meshing teeth (221) to adjust the size of the opening formed by the movable plate (22) and the fixed plate (21).

9. The installation and disassembly tool according to any one of claims 1-8, characterized in that, The installation and disassembly tool also includes a V-shaped wrench head (5), which is connected to the end of the handle (1) opposite to the movable wrench head (2).

10. The installation and disassembly tool according to claim 9, characterized in that, The V-shaped wrench has a V-groove (51) at one end away from the handle (1), and the inner wall of the V-groove (51) has at least two locking teeth (52).

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