Portable copper bush pulling tool for fan

Abstract

The portable copper bush pulling tool comprises a rectangular box, the top of the rectangular box is fixedly connected with two [-shaped blocks which are symmetrically distributed and far away from each other, the top of the rectangular box is provided with a pull rod, the interior of the rectangular box is connected with two bent rods in a sliding mode, and the two bent rods are arranged on the right side of the rectangular box. The two bending rods are rotationally connected and are arranged in a crossed mode, and the bottom ends of the two bending rods are fixedly connected with second clamping blocks; after the tops of the two second clamping blocks bear the bottom end of the copper sleeve, the buffer mechanism is compressed and abuts against the inner wall of the bearing, all the cleaning mechanisms are attached to the outer wall of the copper sleeve, the two U-shaped blocks are pulled after a pull rod is fixed, the copper sleeve can be slowly pulled out, and in the process, the buffer mechanism is located between the second clamping blocks and the copper sleeve to play a protection role; and meanwhile, the cleaning mechanism wipes and cleans the inner wall of the copper sleeve at the same time, and installation and use of a new copper sleeve are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan shaft sleeve replacement tools, and particularly relates to a portable copper sleeve extraction tool for fans. Background Technique

[0002] When the yaw motor of the fan is running, due to long-term yaw, the copper sleeve and the motor bearing work for a long time, resulting in the inability to brake between the yaw motor and the copper sleeve. As a result, the copper sleeve and the motor bearing are opened and closed for a long time, causing the copper sleeve to jam. In severe cases, the copper sleeve overheats and necrosis occurs, generating broken copper pieces that cannot be braked, damaging the normal transmission of the motor. When replacing the copper sleeve during normal maintenance, it takes a long time, resulting in wind abandonment, which is not conducive to normal operation and at the same time avoids the expansion of accidents.

[0003] At present, ordinary tools are used to replace the copper sleeve. After knocking and damaging the copper sleeve, it is taken out. However, in actual applications, the contact area between the copper sleeve of the fan yaw motor and the bearing is small, and it is difficult to take out all the damaged fragments, which will waste a lot of time. Moreover, during the process of knocking and damaging the copper sleeve, it is difficult to control the force, which is easy to damage the bearing components and cause greater losses.

[0004] Therefore, we propose a portable copper sleeve extraction tool for fans to replace the method of knocking and damaging the copper sleeve with ordinary tools in the traditional process. It has the advantage of not damaging the bearing during the extraction process, and can also clean the inner wall of the bearing through which the tool passes during the extraction process, which is beneficial to the installation and use of the new copper sleeve. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a portable copper sleeve extraction tool for fans to solve the problems put forward in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A portable copper sleeve extraction tool for fans, including a rectangular box. Two symmetrically distributed and mutually separated U-shaped blocks are fixedly connected to the top of the rectangular box. A pull rod is arranged on the top of the rectangular box. Two bent rods are slidably connected inside the rectangular box. The two bent rods are rotatably connected and crosswise placed. The bottom ends of the two bent rods are fixedly connected with a second clamping block. The tops of the two second clamping blocks are movably connected with the same copper sleeve. A bearing is arranged on the outer wall of the copper sleeve. One end of the second clamping block is provided with a buffer structure. The buffer structure includes a rubber sleeve. One end of the second clamping block is fixedly connected with the rubber sleeve. Cleaning mechanisms are arranged at both ends of the rubber sleeve. The cleaning mechanism includes a first rubber strip. One end of the first rubber strip is rotatably connected with the second clamping block.

[0007] Preferably, two arc-shaped grooves are formed in the inner walls on both sides of the rectangular box. The two arc-shaped grooves on the inner wall of the same side of the rectangular box are symmetrically distributed. A first clamping block is arranged inside the rectangular box. One end of the first clamping block is fixedly connected to the top of the bending rod. A convex block and a long rod are respectively fixedly connected to the outer walls on both sides of the first clamping block. The arc-shaped groove and the long rod are respectively slidably connected to the inner wall close to their respective convex blocks. Rectangular sliding grooves are formed in the inner walls on both sides of the rectangular box. The rectangular sliding grooves are located between the two convex blocks. Circular rods are slidably connected to the inner walls of the two rectangular sliding grooves. The mutually approaching ends of the two circular rods are fixedly connected to the same trapezoidal block. The bottom end of the pull rod passes through the top of the rectangular box and is rotatably connected to the trapezoidal block.

[0008] Preferably, a driving rod and a convex plate are penetrated and fixedly connected inside the pull rod. The driving rod and the convex plate are both located outside the rectangular box. Sealing plates are fixedly connected to the inner walls on both sides of the rectangular box. Central plates are fixedly connected to the mutually approaching ends of the two sealing plates. The length of the central plate is equal to the opening width at the bottom end of the rectangular box. Arc-shaped springs II are fixedly connected to the outer walls on both sides of the central plate. Arc-shaped rods are sleeved inside the arc-shaped springs II. One end of the arc-shaped rod is slidably connected to the inside of the bending rod. Two symmetrically distributed and mutually separated U-shaped blocks are fixedly connected to the top of the rectangular box. Sector-shaped grooves are formed at the top ends of the two U-shaped blocks. The positions of the two sector-shaped grooves are symmetrically distributed. The convex plate is slidably connected to the inner walls of the two sector-shaped grooves.

[0009] Preferably, a plurality of combined grooves are formed inside the second clamping block. Cylinders are slidably connected to the inner walls of the respective combined grooves. A straight spring is fixedly connected between one end of the inner wall of the cylinder and one end of the inner wall of the combined groove. The mutually remote ends of the respective cylinders are fixedly connected to the same square plate. One end of the square plate is fixedly connected to the rubber sleeve. A plurality of equidistantly distributed rubber strips are fixedly connected to the end of the rubber sleeve close to the inner wall of the bearing.

[0010] Preferably, a composite groove is formed inside the second clamping block. The composite groove includes two circular grooves with the same center but different diameters and an arc-shaped groove. The two circular grooves and the arc-shaped groove are internally communicated with each other. A composite block is rotatably connected inside the composite groove. The composite block includes two circular blocks with the same center but different diameters. The two circular blocks are respectively rotatably connected inside the circular grooves with the same radius as their respective radii. A push plate is fixedly connected to the outer wall of the circular block with a relatively larger radius. The push plate is slidably connected inside the arc-shaped groove. An arc-shaped spring I is fixedly connected between the push plate and one end of the inner wall of the arc-shaped groove. One end of the circular block with a relatively smaller radius passes through the outer wall of the second clamping block and is rotatably connected to the first rubber strip.

[0011] Preferably, the other end of the first rubber strip is hinged to a second rubber strip. Cleaning layers are fixedly connected to the outer walls of both the second rubber strip and the first rubber strip. Arc-shaped short grooves are formed at one end of the second rubber strip and the first rubber strip where they are in contact with each other. An arc-shaped spring three is fixedly connected between the inner walls of the two arc-shaped short grooves. Connecting ropes are fixedly connected to the outer walls on the other side of each second rubber strip, and one end of each connecting rope is fixedly connected to the driving rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Pass the bottom end of the entire extraction tool through the copper sleeve, release the default state of the extraction tool and pull the pull rod upward. When it cannot be dragged anymore, the tops of the two second clamping blocks will support the bottom end of the copper sleeve. At this time, the buffer mechanism is compressed and abuts against the inner wall of the bearing, and each cleaning mechanism fits on the outer wall of the copper sleeve. After fixing the pull rod and pulling the two U-shaped blocks, the copper sleeve can be slowly pulled out. During this process, the buffer mechanism is located between the second clamping block and the copper sleeve to play a protective role and prevent damage to the inner wall of the copper sleeve. At the same time, the cleaning mechanism wipes and cleans the inner wall of the copper sleeve simultaneously, which is beneficial to the installation and use of the new copper sleeve. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the extraction tool of the present utility model;

[0015] Figure 2 is the state diagram of the extraction tool of the present utility model during operation;

[0016] Figure 3 is of the present utility model Figure 2 overall sectional structural schematic diagram;

[0017] Figure 4 is the semi-sectional schematic diagram of a part of the extraction tool of the present utility model;

[0018] Figure 5 is the overall structural schematic diagram of the bending rod of the present utility model;

[0019] Figure 6 is of the present utility model Figure 5 magnified schematic diagram at position A of the overall structure;

[0020] Figure 7 is the overall sectional structural schematic diagram of the rubber sleeve of the present utility model;

[0021] Figure 8 is the overall sectional structural schematic diagram of the first rubber strip and the second rubber strip of the present utility model.

[0022] In the figure: 1, rectangular box; 2, arc-shaped groove; 3, bump; 4, first clamping block; 5, bent rod; 6, second clamping block; 7, rubber sleeve; 8, square plate; 9, cylinder; 10, straight spring; 11, composite groove; 12, first arc-shaped spring; 13, composite block; 14, second arc-shaped spring; 15, trapezoidal block; 16, pull rod; 17, C-shaped block; 18, sector-shaped groove; 19, convex plate; 20, first rubber strip; 21, second rubber strip; 22, cleaning layer; 23, third arc-shaped spring; 24, connecting rope. Specific embodiments

[0023] In order to clearly and completely describe the purpose, technical solution of the present utility model, and make the advantages more clear, the following further details the embodiments of the present utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1 to 8 , the present utility model provides a technical solution: a portable copper sleeve extraction tool for a fan, including a rectangular box 1. Two symmetrically distributed and mutually separated C-shaped blocks 17 are fixedly connected to the top of the rectangular box 1. A pull rod 16 is arranged on the top of the rectangular box 1. Two bent rods 5 are slidably connected inside the rectangular box 1. The two bent rods 5 are rotatably connected and crosswise arranged. The bottom ends of the two bent rods 5 are fixedly connected with second clamping blocks 6. The tops of the two second clamping blocks 6 are movably connected to the same copper sleeve. A bearing is arranged on the outer wall of the copper sleeve. One end of the second clamping block 6 is provided with a buffer structure. The buffer structure includes a rubber sleeve 7. One end of the second clamping block 6 is fixedly connected to the rubber sleeve 7. Cleaning mechanisms are arranged at both ends of the rubber sleeve 7. The cleaning mechanism includes a first rubber strip 20. One end of the first rubber strip 20 is rotatably connected to the second clamping block 6; Pass the bottom end of the entire extraction tool through the copper sleeve, release the default state of the extraction tool and pull up the pull rod 16. When it cannot be dragged, the tops of the two second clamping blocks 6 will support the bottom end of the copper sleeve. At this time, the buffer mechanism is compressed and abuts against the inner wall of the bearing, and each cleaning mechanism fits on the outer wall of the copper sleeve. After fixing the pull rod 16 and pulling the two C-shaped blocks 17, the copper sleeve can be slowly pulled out. During this process, the buffer mechanism is located between the second clamping block 6 and the copper sleeve to play a protective role and avoid damage to the inner wall of the copper sleeve. At the same time, the cleaning mechanism wipes and cleans the inner wall of the copper sleeve at the same time, which is beneficial to the installation and use of the new copper sleeve.

[0026] Embodiment 2

[0027] Please refer to Figures 1 to 8, on the basis of the first embodiment, two arc-shaped grooves 2 are provided on both inner walls of the rectangular box 1. The two arc-shaped grooves 2 on the same inner wall of the rectangular box 1 are symmetrically distributed. A first clamping block 4 is arranged inside the rectangular box 1. One end of the first clamping block 4 is fixedly connected to the top of the bent rod 5. Convex blocks 3 and long rods are respectively fixedly connected to the outer walls on both sides of the first clamping block 4. The arc-shaped groove 2 and the long rod are respectively slidably connected to the inner walls close to their respective convex blocks 3. Rectangular sliding grooves are provided on both inner walls of the rectangular box 1. The rectangular sliding grooves are located in the middle of the two convex blocks 3. Circular rods are slidably connected to the inner walls of the two rectangular sliding grooves. One ends of the two circular rods close to each other are fixedly connected to the same trapezoidal block 15. The bottom end of the pull rod 16 passes through the top of the rectangular box 1 and is rotatably connected to the trapezoidal block 15. A driving rod and a convex plate 19 are penetrated and fixedly connected inside the pull rod 16. The driving rod and the convex plate 19 are both located outside the rectangular box 1. Sealing plates are fixedly connected to both inner walls of the rectangular box 1. Central plates are fixedly connected to one ends of the two sealing plates close to each other. The length of the central plate is equal to the opening width at the bottom end of the rectangular box 1. Arc-shaped springs II 14 are fixedly connected to the outer walls on both sides of the central plate. Arc-shaped rods are sleeved inside the arc-shaped springs II 14. One end of the arc-shaped rod is slidably connected to the inside of the bent rod 5. Two symmetrically distributed and mutually separated U-shaped blocks 17 are fixedly connected to the top of the rectangular box 1. Sector-shaped grooves 18 are provided at the top ends of the two U-shaped blocks 17. The positions of the two sector-shaped grooves 18 are symmetrically distributed. The convex plate 19 is slidably connected to the inner walls of the two sector-shaped grooves 18.

[0028] The second clamping block 6 is generally hook-shaped. The arrangement of the arc-shaped groove 2, the long rod, the rectangular sliding groove, the circular rod and the convex block 3 makes the bent rod 5 and the rectangular box 1 indirectly form a whole. When the driving pull rod 16 pulls the trapezoidal block 15, the two bent rods 5 will also displace synchronously to take out the copper sleeve. In the default state, the mutually approaching ends of the two first clamping blocks 4 are close to each other. The two bent rods 5 are rotatably connected to each other, and their whole is generally X-shaped. The mutually approaching ends of the two first clamping blocks 4 do not have to contact each other but are just staggered. The two inclined ends of the trapezoidal block 15 are respectively in contact with the inclined ends of the lower parts of the two first clamping blocks 4. When the pull rod 16 displaces in the direction away from the rectangular box 1, the trapezoidal block 15 will act on the two first clamping blocks 4 and cause them to displace along the inner wall of the convex block 3 in the direction away from the middle of the rectangular box 1. The distance between the two second clamping blocks 6 will also increase, facilitating the subsequent support of the copper sleeve. In the above process, through the arranged second arc-shaped spring 14 and the arc-shaped rod, during the displacement of the first clamping block 4, the two bent rods 5 will also deflect synchronously. The two second arc-shaped springs 14 are gradually stretched. The arc-shaped rod slides inside the bent rod 5. Under the restriction of the bent rod 5, the second arc-shaped spring 14 can only change along the outer wall of the bent rod 5, and its position is restricted to ensure normal functioning. When the trapezoidal block 15 no longer exerts a force on the two first clamping blocks 4, the second arc-shaped spring 14 will lose the external force and拉升 to restore its deformation, so as to pull the two first clamping blocks 4 back to the state of approaching each other. During the displacement of the trapezoidal block 15 in the direction away from the middle of the rectangular box 1, the circular rod will also slide inside the rectangular sliding groove to increase the stability of the trapezoidal block 15 during displacement. The convex plate 19 is in contact with the top of the rectangular box 1 in the default state. When the pull rod 16 displaces, the pull rod 16 needs to be rotated so that the convex plate 19 can pass between the two U-shaped blocks 17. When the convex plate 19 and the two sector-shaped grooves 18 are on the same horizontal line, rotating the convex plate 19 can rotatably connect it inside the two sector-shaped grooves 18. At this time, the positions of the two bent rods 5 are fixed, and acting on the two U-shaped blocks 17 can take out the copper sleeve.

[0029] Embodiment 3

[0030] Please refer to Figures 1 to 8 , on the basis of Embodiment 1, a plurality of combined grooves are formed inside the second clamping block 6. A cylinder 9 is slidably connected to the inner wall of each combined groove. A straight spring 10 is fixedly connected between one end of the inner wall of the cylinder 9 and one end of the inner wall of the combined groove. The ends of the cylinders 9 away from the second clamping block 6 are fixedly connected to the same square plate 8. One end of the square plate 8 is fixedly connected to the rubber sleeve 7. A plurality of equally spaced rubber strips are fixedly connected to one end of the rubber sleeve 7 close to the inner wall of the bearing.

[0031] By setting the rubber sleeve 7, the problem that the distance between the two clamping blocks 6 is continuously increased and finally touches the inner wall of the copper sleeve is solved, that is, the rubber sleeve 7 touches the inner wall of the copper sleeve earlier than the clamping block 6 to prevent it from scratching the inner wall of the copper sleeve. In order to make the clamping block 6 support the copper sleeve with a larger area, the driving pull rod 16 will increase the distance between the two clamping blocks 6 again, so that the clamping block 6 and the copper sleeve are stretched tighter, making it difficult to fall off during the extraction process. Until the pull rod 16 can no longer be lifted up, the two rubber sleeves 7 are in a compressed state at this time, and the rubber strip fixed at one end of the rubber sleeve 7 will also conflict with the inner wall of the copper sleeve. The straight spring 10 inside the rubber sleeve 7 is also compressed, and the cylinder 9 is displaced into the interior of the combined groove by the action of the rubber sleeve 7 to achieve adaptive deformation.

[0032] Embodiment 4

[0033] The inside of the block 2 6 is provided with a composite groove 11, which includes two circular grooves and an arc groove with concentric centers but different diameters. The insides of the two circular grooves and the arc groove are interactively connected. The inside of the composite groove 11 is rotatably connected with a composite block 13, which includes two circular blocks with concentric centers but different diameters. The two circular blocks are rotatably connected to the inside of the circular grooves with the same radius as their respective ones. The outer wall of the circular block with a relatively large radius is fixedly connected with a push plate, which is slidably connected to the inside of the arc groove, and the push plate is fixedly connected to one end of the inner wall of the arc groove. There is an arc spring 12, one end of the circular block with a relatively small radius passes through the outer wall of the clamping block 26 and is rotatably connected to the rubber strip 20, the other end of the rubber strip 20 is hinged with a rubber strip 21, the outer walls of the rubber strip 21 and the rubber strip 20 are fixedly connected with a cleaning layer 22, and the ends of the rubber strip 21 and the rubber strip 20 that are in contact with each other are provided with an arc short groove, and an arc spring 3 23 is fixedly connected between the inner walls of the two arc short grooves, and the outer wall of each rubber strip 21 on the other side is fixedly connected with a connecting rope 24, and one end of the connecting rope 24 is fixedly connected to the driving rod.

[0034] When the tool has not entered the inside of the copper sleeve, that is, in the default state, the two second clamping blocks 6 are close to each other but do not touch each other. Then the two adjacent second rubber strips 21抵触 each other, and the first rubber strip 20 rotates, and the push plate compresses the first arc spring 12. At this time, it is necessary to rotate the pull rod 16 to wind up each connecting rope 24. Through the arranged third arc spring 23, the second rubber strip 21 deflects along the hinge joint with the first rubber strip 20. Then the distance between the two second rubber strips 21 at both ends of the bending rod 5 will be smaller than the diameter of the copper sleeve, which is convenient for the tool to extend into the inside of the copper sleeve. Then following the above steps, after the tool extends into the inside of the copper sleeve, gradually rotate the pull rod 16 in the reverse direction until each connecting rope 24 is no longer wound around its outer wall. During the process of pulling and adjusting the pull rod 16, the first arc spring 12 and the third arc spring 23 gradually rebound. Finally, the two first rubber strips 20 and the second rubber strips 21 will just contact the inner wall of the bearing. During the process of the tool pulling out the copper sleeve, the second rubber strip 21 and the first rubber strip 20 will also move synchronously in the same direction. Then the cleaning layers 22 fixed on their outer walls will wipe and clean the inner wall of the bearing in real time to keep it clean, which is beneficial to the installation and use of the new copper sleeve.

[0035] The working principle and usage process of the present utility model: After the tool extends into the inside of the copper sleeve, gradually rotate the pull rod 16 in the reverse direction until each connecting rope 24 is no longer wound around its outer wall. During the process of pulling and adjusting the pull rod 16, the first arc spring 12 and the third arc spring 23 gradually rebound. Finally, the two first rubber strips 20 and the second rubber strips 21 will just contact the inner wall of the bearing. When driving the pull rod 16 to pull the trapezoidal block 15, the two inclined ends of the trapezoidal block 15 respectively contact the inclined ends at the lower ends of the two first clamping blocks 4. The trapezoidal block 15 will act on the two first clamping blocks 4 and cause them to displace along the inner wall of the convex block 3 in the direction away from the middle of the rectangular box 1. The distance between the two second clamping blocks 6 will also increase. Continue to pull up the pull rod 16 until it cannot move. During the above process, it is necessary to rotate the pull rod 16 so that the convex plate 19 can pass between the two U-shaped blocks 17. When the convex plate 19 and the two sector grooves 18 are on the same horizontal line, rotating the convex plate 19 can rotate and connect it inside the two sector grooves 18. At this time, the distance between the two second clamping blocks 6 is pulled to the maximum. The rubber sleeve 7 exists in a compressed state between the second clamping block 6 and the inner wall of the bearing. The rubber strip fixed at one end of the rubber sleeve 7 will also contact the inner wall of the copper sleeve. At this time, pulling up the U-shaped block 17, then the second clamping block 6, the first rubber strip 20 and the second rubber strip 21 will finally support to the bottom end of the copper sleeve. Continuing to pull up the two U-shaped blocks 17 can take out the copper sleeve. In summary, the entire taking-out process only needs to pull up and rotate the pull rod 16 to make the convex plate 19 clamped between the two sector grooves 18, and then pulling the U-shaped block 17 can complete the operation, which is simple and efficient.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable copper sleeve extraction tool for a fan, comprising a rectangular box (1), characterized in that: Two symmetrically distributed and mutually separated U-shaped blocks (17) are fixedly connected to the top of the rectangular box (1). A pull rod (16) is arranged on the top of the rectangular box (1). Two bent rods (5) are slidably connected inside the rectangular box (1). The two bent rods (5) are rotatably connected and crosswise arranged. The bottom ends of the two bent rods (5) are fixedly connected with second clamping blocks (6). The tops of the two second clamping blocks (6) are movably connected to the same copper sleeve. A bearing is arranged on the outer wall of the copper sleeve. A buffer structure is arranged at one end of the second clamping block (6). The buffer structure includes a rubber sleeve (7). One end of the second clamping block (6) is fixedly connected with the rubber sleeve (7). Cleaning mechanisms are arranged at both ends of the rubber sleeve (7). The cleaning mechanism includes a first rubber strip (20). One end of the first rubber strip (20) is rotatably connected with the second clamping block (6).

2. A portable copper sleeve extraction tool for a fan according to claim 1, characterized in that: Two arc-shaped grooves (2) are formed in the inner walls on both sides of the rectangular box (1). The two arc-shaped grooves (2) on the inner wall of the same side of the rectangular box (1) are symmetrically distributed. A first clamping block (4) is arranged inside the rectangular box (1). One end of the first clamping block (4) is fixedly connected with the top of the bent rod (5). A convex block (3) and a long rod are respectively fixedly connected to the outer walls on both sides of the first clamping block (4). The arc-shaped groove (2) and the long rod are respectively slidably connected to the inner walls close to their respective convex blocks (3). Rectangular sliding grooves are formed in the inner walls on both sides of the rectangular box (1). The rectangular sliding grooves are located in the middle of the two convex blocks (3). Circular rods are slidably connected to the inner walls of the two rectangular sliding grooves. The mutually close ends of the two circular rods are fixedly connected to the same trapezoidal block (15). The bottom end of the pull rod (16) passes through the top of the rectangular box (1) and is rotatably connected to the trapezoidal block (15).

3. A portable copper sleeve extraction tool for a fan according to claim 2, characterized in that: A driving rod and a convex plate (19) are penetrated and fixedly connected inside the pull rod (16). The driving rod and the convex plate (19) are both located outside the rectangular box (1). Sealing plates are fixedly connected to the inner walls on both sides of the rectangular box (1). Central plates are fixedly connected to the mutually close ends of the two sealing plates. The length of the central plate is equal to the opening width at the bottom end of the rectangular box (1). Arc-shaped springs II (14) are fixedly connected to the outer walls on both sides of the central plate. Arc-shaped rods are sleeved inside the arc-shaped springs II (14). One end of the arc-shaped rod is slidably connected to the inside of the bent rod (5). Two symmetrically distributed and mutually separated U-shaped blocks (17) are fixedly connected to the top of the rectangular box (1). Sector-shaped grooves (18) are formed at the tops of the two U-shaped blocks (17). The positions of the two sector-shaped grooves (18) are symmetrically distributed. The convex plate (19) is slidably connected to the inner walls of the two sector-shaped grooves (18).

4. A portable copper sleeve extraction tool for a fan according to claim 1, characterized in that: A plurality of combined grooves are provided inside the second clamping block (6), and the inner wall of each of the combined grooves is slidably connected to a cylinder (9), and a straight spring (10) is fixedly connected between one end of the inner wall of the cylinder (9) and one end of the inner wall of the combined groove, and one end of each of the cylinders (9) away from the second clamping block (6) is fixedly connected to the same square plate (8), one end of the square plate (8) is fixedly connected to a rubber sleeve (7), and one end of the rubber sleeve (7) close to the inner wall of the bearing is fixedly connected to a plurality of equidistantly distributed rubber strips.

5. A portable copper sleeve extraction tool for a fan according to claim 1, characterized in that: A composite groove (11) is provided inside the second clamping block (6), and the composite groove (11) includes two circular grooves and an arc groove with concentric centers but different diameters, and the interiors of the two circular grooves and the arc grooves are interactively connected. A composite block (13) is rotatably connected inside the composite groove (11), and the composite block (13) includes two circular blocks with concentric centers but different diameters. The two circular blocks are rotatably connected inside circular grooves with the same radius as their respective ones. A push plate is fixedly connected to the outer wall of the circular block with a relatively larger radius, and the push plate is slidably connected inside the arc groove. An arc spring (12) is fixedly connected between the push plate and one end of the inner wall of the arc groove. One end of the circular block with a relatively smaller radius passes through the outer wall of the second clamping block (6) and is rotatably connected to a rubber strip (20).

6. A portable copper sleeve extraction tool for a fan according to claim 3, characterized in that: The other end of the rubber strip one (20) is hingedly connected to the rubber strip two (21), and the outer walls of the rubber strip two (21) and the rubber strip one (20) are fixedly connected with a cleaning layer (22), and the ends of the rubber strip two (21) and the rubber strip one (20) that are in contact with each other are each provided with an arc-shaped short groove, and an arc-shaped spring three (23) is fixedly connected between the inner walls of the two arc-shaped short grooves, and the outer walls of the other sides of each of the rubber strips two (21) are fixedly connected with a connecting rope (24), and one end of the connecting rope (24) is fixedly connected to the driving rod.

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