Bushing dismounting tool

Abstract

The utility model discloses a bushing dismounting tool, which belongs to the field of dismounting tools, and comprises a main body shaft, and the striking part is detachably mounted at the second end of the main body shaft. According to the bushing dismounting tool disclosed by the utility model, after the striking part is damaged, the striking part can be independently replaced, and the bushing dismounting tool does not need to be completely scrapped, so that the purpose of saving cost is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly and assembly tools, specifically, it relates to a bushing disassembly tool. Background Technology

[0002] When the opening and closing mechanism is being inspected, the condition of the DU bushing on the opening and closing wing must be observed. If there is any loose rust, the DU bushing must be removed from the opening and closing wing, the loose rust on the surface of the DU bushing must be cleaned, and the DU bushing must be restored to the opening and closing wing after confirming that it is free from deformation, breakage or other damage.

[0003] The connection between the DU bushing and the opening / closing wing is an interference fit, which makes it difficult to disassemble and assemble the DU bushing. The current solution is to use a flathead screwdriver and a hammer to knock the DU washer out and in from the opening / closing wing. However, this method is prone to damaging the parts and injuring the workers, resulting in increased maintenance costs and decreased construction efficiency.

[0004] Chinese patent CN219768149U discloses a bushing disassembly tool, including a connecting part, an installation part at one end of the connecting part, a step formed at the connection position between the installation part and the connecting part, a striking part at the end of the connecting part away from the installation part, and a gripping part on the connecting part.

[0005] When disassembling the bushing, insert the connecting part into the inner hole of the bushing, align the step between the mounting part and the connecting part with the end face of the bushing, and strike the striking part. The impact of striking the striking part causes the bushing to gradually separate from the opening and closing wing. Because the striking part is subjected to prolonged impact, it is prone to deformation or damage. Damage to the striking part will render the entire bushing disassembly tool unusable.

[0006] In view of this, this utility model is proposed. Utility Model Content

[0007] In order to solve at least some of the above-mentioned problems, this utility model provides a bushing removal tool that can replace the striking part separately when the striking part is damaged, without having to completely scrap the bushing removal tool, thereby saving costs.

[0008] The basic concept of the technical solution adopted in this utility model is:

[0009] A bushing removal tool, comprising:

[0010] Main axis;

[0011] The striking part is detachably mounted on the second end of the main body shaft.

[0012] Furthermore, the second end of the main shaft is provided with a first connecting portion that protrudes outward;

[0013] The striking part is provided with a first mating cavity that matches the first connecting part. When the striking part is assembled with the main body shaft, the first connecting part is inserted into the first mating cavity.

[0014] Furthermore, the first connecting part is a stud, the first mating cavity is a threaded hole, and the first connecting part is threadedly connected to the first mating cavity.

[0015] Furthermore, a first magnetic attractor is provided inside the first connecting part, and a second magnetic attractor is provided inside the first docking cavity. When the first connecting part is inserted into the first docking cavity, the first magnetic attractor and the second magnetic attractor attract each other.

[0016] Furthermore, it also includes a quick-connect coupling, which is detachably mounted on the first end of the main shaft.

[0017] Furthermore, the first end of the main shaft is provided with a second connecting portion that protrudes outward;

[0018] The striking part is provided with a second docking cavity that matches the second connecting part. When the quick-connect joint is assembled with the main shaft, the second connecting part is inserted into the second docking cavity.

[0019] Furthermore, the second connecting part is a stud, the second mating cavity is a threaded hole, and the second connecting part is threadedly connected to the second mating cavity.

[0020] Furthermore, a third magnetic attractor is provided inside the second connecting part, and a fourth magnetic attractor is provided inside the second docking cavity. When the second connecting part is inserted into the second docking cavity, the third magnetic attractor and the fourth magnetic attractor attract each other.

[0021] Furthermore, the quick-connect coupling includes an impact part and a docking part arranged coaxially, wherein the radial cross-sectional area of ​​the impact part is larger than the radial cross-sectional area of ​​the docking part, thereby forming a step between the impact part and the docking part.

[0022] Furthermore, the edge of the docking portion away from the impact portion is chamfered.

[0023] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0024] 1. When the striking part is damaged, only the striking part needs to be replaced, without having to scrap the entire bushing disassembly tool, thus saving costs.

[0025] 2. The quick-connect coupling can be replaced. For bushings of different specifications, only the corresponding quick-connect coupling needs to be replaced. Therefore, for various types of bushings, only the corresponding quick-connect coupling needs to be prepared, saving the cost of bushing disassembly tools.

[0026] 3. When disassembling the bushing, insert the connecting part of the quick-connect coupling into the inner hole of the bushing to quickly position and connect the bushing removal tool with the bushing to be removed.

[0027] 4. During the disassembly of the bushing, the step of the quick-connect joint abuts against the end face of the bushing, making the bushing more evenly stressed, reducing damage to the bushing, and improving the disassembly efficiency.

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0030] Figure 1 This is a schematic diagram of the bushing removal tool according to Embodiment 1 of this utility model;

[0031] Figure 2 This is an exploded view of the bushing removal tool according to Embodiment 1 of this utility model;

[0032] Figure 3 This is a schematic diagram of the bushing removal tool according to Embodiment 2 of this utility model;

[0033] Figure 4 This is an exploded view of the bushing removal tool according to Embodiment 3 of this utility model.

[0034] In the figure: 1. Main shaft; 11. First connecting part; 12. Second connecting part; 2. Striking part; 21. First docking cavity; 3. Quick docking joint; 31. Second docking cavity; 301. Impact part; 302. Docking part; 303. Step; 4. First magnetic suction component; 5. Second magnetic suction component; 6. Third magnetic suction component; 7. Fourth magnetic suction component.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Example 1

[0040] like Figures 1 to 2 As shown, this utility model discloses a bushing removal tool.

[0041] The bushing removal tool includes a main shaft 1, which is a straight shaft. A quick-connect coupling 3 is provided at the first end of the main shaft 1, which is used to mate with the bushing to be removed. The quick-connect coupling 3 is detachably installed at the first end of the main shaft 1.

[0042] A striking part 2 is provided at the second end of the main shaft 1, and the striking part 2 is detachably installed at the second end of the main shaft 1. When disassembling the bushing, the quick-connect joint 3 is connected to the bushing, and a hammering tool is used to strike the striking part 2. The hammering force is transmitted along the main shaft 1 to the bushing, causing the bushing to gradually separate from the opening and closing wing.

[0043] In this embodiment, the striking part 2 is detachably installed at the second end of the main shaft 1, and can be replaced when the striking part 2 is damaged or deformed.

[0044] Specifically, a first connecting portion 11 protruding outward along the axis of the main shaft 1 is provided at the second end of the main shaft 1, and the first connecting portion 11 is integrally formed with the main shaft 1. The striking part 2 is provided with a first mating cavity 21 that matches the first connecting portion 11. When the striking part 2 and the main shaft 1 are assembled together, the first connecting portion 11 is inserted into the interior of the first mating cavity 21.

[0045] In this embodiment, the first connecting part 11 is a stud with external threads machined on its surface. The first mating cavity 21 is a threaded hole that matches the first connecting part 11. When connecting the main body shaft 1 and the striking part 2, the first connecting part 11 is screwed into the interior of the first mating cavity 21, so that the first connecting part 11 and the striking part 2 are threadedly connected.

[0046] In this embodiment, the quick-connect joint 3 is fixedly connected to the main body shaft 1 by welding, or the quick-connect joint 3 and the main body shaft 1 are integrally machined.

[0047] Specifically, the quick-connect coupling 3 includes an impact portion 301 and a mating portion 302 coaxially arranged. The end of the impact portion 301 facing away from the mating portion 302 is aligned with the main shaft 1. The impact portion 301 and the mating portion 302 are integrally formed. Both the impact portion 301 and the mating portion 302 are cylindrical structures. The diameter of the impact portion 301 is larger than the diameter of the mating portion 302, resulting in a larger radial cross-sectional area of ​​the impact portion 301 than that of the mating portion 302. Because the radial cross-sectional area of ​​the impact portion 301 is larger than that of the mating portion 302, a step 303 is formed between the impact portion 301 and the mating portion 302.

[0048] Preferably, in order to make it easier for the mating part 302 to be inserted into the inner hole of the bushing, the edge of the mating part 302 away from the impact part 301 is provided with a chamfer.

[0049] When disassembling and assembling the bushing, first select a bushing removal tool that matches the quick-connect coupling 3. Hold the main shaft 1 and insert the mating part 302 of the quick-connect coupling 3 into the inner hole of the bushing to be disassembled. During the bushing disassembly and assembly, strike the striking part 2 at the second end of the main shaft 1 with a striking tool. By striking the striking part 2 at the second end of the main shaft 1, force is applied to the bushing, causing the bushing to separate from the opening and closing wing.

[0050] Example 2

[0051] This utility model discloses a bushing removal tool.

[0052] Reference Figure 3The difference between Embodiment 2 and Embodiment 1 is that the quick-connect coupling 3 is detachably installed at the first end of the main body shaft 1. By detachably installing the quick-connect coupling 3 at the first end of the main body shaft 1, it can be replaced according to different specifications and models of bushings. When disassembling or assembling the bushing, the corresponding quick-connect coupling 3 is selected according to the bushing's model and specifications, and the corresponding quick-connect coupling 3 is installed on the first end of the main body shaft 1.

[0053] Specifically, a second connecting portion 12 protruding outward along the axis of the main shaft 1 is provided at the first end of the main shaft 1, and the second connecting portion 12 is integrally formed with the main shaft 1. A second mating cavity 31 matching the second connecting portion 12 is machined on the quick-connect coupling 3. When the quick-connect coupling 3 is connected to the main shaft 1, the second connecting portion 12 is inserted into the interior of the second mating cavity 31.

[0054] In this embodiment, the second connecting part 12 is a stud with external threads machined on its surface. The second mating cavity 31 is a threaded hole that matches the second connecting part 12. When the main shaft 1 is connected to the quick-connect coupling 3, the second connecting part 12 is screwed into the interior of the second mating cavity 31, so that the second connecting part 12 and the quick-connect coupling 3 are threadedly connected.

[0055] When selecting the quick-connect coupling 3, it is necessary to ensure that the mating part 302 can be inserted into the bushing, and the diameter of the impact part 301 must be larger than the inner diameter of the bushing. When connecting the quick-connect coupling 3 to the bushing, the mating part 302 extends into the inner diameter of the bushing, and the step 303 formed between the impact part 301 and the mating part 302 abuts against the end face of the bushing.

[0056] When assembling or disassembling the bushing, first select a quick-connect coupling 3 that matches the bushing and install the selected quick-connect coupling 3 onto the main shaft 1. Hold the main shaft 1 and insert the mating part 302 of the quick-connect coupling 3 into the inner hole of the bushing to be disassembled. When assembling or disassembling the bushing, tap the striking part 2 at the second end of the main shaft 1. By tapping the end face of the second end of the main shaft 1, force is applied to the bushing, causing the bushing to separate from the opening and closing wing.

[0057] Example 3

[0058] This utility model discloses a bushing removal tool.

[0059] Reference Figure 4 The difference between Embodiment 3 and Embodiment 2 is that the connection method between the main shaft 1, the striking part 2, and the quick-connect joint 3 is different.

[0060] Specifically, the first connecting part 11 is an optical axis. A first magnetic attractor 4 is embedded inside the first connecting part 11. A second magnetic attractor 5 is fixed inside the first docking cavity 21. The magnetic poles of the first magnetic attractor 4 and the second magnetic attractor 5 are opposite, so that the first magnetic attractor 4 and the second magnetic attractor 5 can attract each other. When the first connecting part 11 is inserted into the first docking cavity 21, the first magnetic attractor 4 and the second magnetic attractor 5 are attracted by magnetic force, thereby installing the striking part 2 onto the main shaft 1.

[0061] When it is necessary to remove the striking part 2 from the main body shaft 1, simply pull the striking part 2 with force so that the striking part 2 moves away from the main body shaft 1 along the axial direction of the main body shaft 1. When the force applied to the striking part 2 is greater than the magnetic attraction force between the first magnetic member 4 and the second magnetic member 5, the main body shaft 1 can be separated from the striking part 2.

[0062] Preferably, when the first connecting part 11 is inserted into the first docking cavity 21, there is a gap between the first connecting part 11 and the second magnetic attractor 5 located inside the first docking cavity 21, so that the first connecting part 11 and the second magnetic attractor 5 do not directly contact each other, thus avoiding the collision between the first connecting part 11 and the second magnetic attractor 5 when the striking part 2 is struck, which would cause damage to the second magnetic attractor 5.

[0063] Specifically, the second connecting part 12 is an optical axis, and a third magnetic member 6 is embedded inside the second connecting part 12. A fourth magnetic member 7 is fixed inside the second docking cavity 21. The magnetic poles of the third magnetic member 6 and the fourth magnetic member 7 are opposite, so that the third magnetic member 6 and the fourth magnetic member 7 can attract each other. When the second connecting part 12 is inserted into the second docking cavity 21, the third magnetic member 6 and the fourth magnetic member 7 are attracted by magnetic force, thereby installing the quick-connect coupling 3 onto the main shaft 1.

[0064] When it is necessary to remove the quick-connect connector 3 from the main shaft 1, simply pull the quick-connect connector 3 with force so that it moves away from the main shaft 1 along the axial direction of the main shaft 1. When the force applied to the quick-connect connector 3 is greater than the magnetic attraction force between the third magnetic member 6 and the fourth magnetic member 7, the main shaft 1 can be separated from the quick-connect connector 3.

[0065] Preferably, when the second connecting part 12 is inserted into the second docking cavity 21, there is a gap between the second connecting part 12 and the fourth magnetic attractor 7 located inside the second docking cavity 21, so that the second connecting part 12 and the fourth magnetic attractor 7 do not directly contact each other, thus avoiding the collision between the first connecting part 11 and the fourth magnetic attractor 7 when the striking part 2 is struck, which would cause damage to the fourth magnetic attractor 7.

[0066] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A bushing removal tool, characterized in that, include: Main shaft (1); The striking part (2) is detachably mounted on the second end of the main shaft (1); The second end of the main shaft (1) is provided with an outwardly protruding first connecting part (11), and the striking part (2) is provided with a first docking cavity (21) that matches the first connecting part (11). The first connecting part (11) is provided with a first magnetic suction member (4), and the first docking cavity (21) is provided with a second magnetic suction member (5). When the first connecting part (11) is inserted into the first docking cavity (21), the first magnetic suction member (4) and the second magnetic suction member (5) attract each other.

2. The bushing removal tool according to claim 1, characterized in that, The first connecting part (11) is an optical axis. When the striking part (2) is assembled with the main body shaft (1), the first connecting part (11) is inserted into the first docking cavity (21).

3. A bushing removal tool according to claim 2, characterized in that, The first connecting part (11) is a stud, the first mating cavity (21) is a threaded hole, and the first connecting part (11) is threadedly connected to the first mating cavity (21).

4. The bushing removal tool according to claim 1, characterized in that, When the first connecting part (11) is inserted into the first docking cavity (21), there is a gap between the first magnetic suction member (4) and the second magnetic suction member (5).

5. A bushing removal tool according to any one of claims 1 to 4, characterized in that, It also includes a quick-connect coupling (3), which is detachably mounted on the first end of the main shaft (1).

6. A bushing removal tool according to claim 5, characterized in that, The first end of the main shaft (1) is provided with an outwardly protruding second connecting part (12); The striking part (2) is provided with a second docking cavity (31) that matches the second connecting part (12). When the quick-connect joint (3) is assembled with the main shaft (1), the second connecting part (12) is inserted into the second docking cavity (31).

7. A bushing removal tool according to claim 6, characterized in that, The second connecting part (12) is a stud, the second mating cavity (31) is a threaded hole, and the second connecting part (12) is threadedly connected to the second mating cavity (31).

8. A bushing removal tool according to claim 6, characterized in that, The second connecting part (12) is provided with a third magnetic suction member (6) inside, and the second docking cavity (31) is provided with a fourth magnetic suction member (7) inside. When the second connecting part (12) is inserted into the second docking cavity (31), the third magnetic suction member (6) and the fourth magnetic suction member (7) attract each other.

9. A bushing removal tool according to claim 5, characterized in that, The quick-connector (3) includes an impact part (301) and a docking part (302) arranged coaxially. The radial cross-sectional area of ​​the impact part (301) is larger than the radial cross-sectional area of ​​the docking part (302), thereby forming a step (303) between the impact part (301) and the docking part (302).

10. A bushing removal tool according to claim 9, characterized in that, The edge of the docking part (302) away from the impact part (301) is chamfered.

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