Pin puller

Abstract

The utility model discloses a pin puller which comprises a main rod, and one end of the main rod is fixedly connected with a handle. The pin pulling block is connected with the other end of the main rod, and the pin pulling block is used for being connected with a pin; the knocking hammer is connected to the surface of the main rod in a sliding mode, and the knocking hammer is used for knocking the end face of the handle so as to pull out the pin. According to the utility model, the knocking hammer slides, the knocking hammer knocks the handle, and the pin is pulled out through inertia, so that the pin pulling efficiency can be improved, and the labor capacity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a pin puller. Background Art

[0002] Pins are often embedded into the interior of the machine. For some machines, since the pins are embedded too deep, when the pins need to be pulled out, the positions and angles that can be operated manually are limited, resulting in the pins being unable to be pulled out and needing to be returned to the factory for repairs, which is time-consuming, delays progress, and is rather cumbersome.

[0003] Therefore, pin pullers have been developed for pulling out pins. However, for deep pins, the pulling-out angle cannot be effectively controlled during the pulling-out process, which can easily cause greater friction between the pin and the inner wall of the pin hole, making the pulling-out process more laborious and time-consuming. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a pin puller.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A pin puller, comprising:

[0007] A main rod, one end of which is fixedly connected to a handle;

[0008] A pin pulling block connected to the other end of the main rod, the pin pulling block is used to connect with the pin;

[0009] A striking hammer is slidably connected to the surface of the main rod, and the striking hammer is used to strike the end surface of the handle to pull out the pin.

[0010] As a further description of the above technical solution, the pin pulling block is connected to the main rod by welding.

[0011] As a further description of the above technical solution, the pin pulling block is movably connected to the main rod via a thread.

[0012] As a further description of the above technical solution, one end of the striking hammer is fixedly connected to a handle, and a non-slip layer is provided on the surface of the handle.

[0013] As a further description of the above technical solution, a locator is slidably connected to one side of the main rod close to the pin pulling block, and the locator is sleeved on the outside of the pin pulling block.

[0014] As a further description of the above technical solution, the positioner includes a sleeve slidably connected to the outside of the main rod, the sleeve has a plurality of connecting rods radiating outward, a fixing ring is provided on the outside of the connecting rod, and the fixing ring has a plurality of support rods provided along the length direction of the main rod. The support rods are connected to a magnetic positioning disk, and an opening is provided at the center of the magnetic positioning disk.

[0015] As a further description of the above technical solution, the diameter of the opening is not less than the diameter of the pin pulling block.

[0016] As a further description of the above technical solution, a plurality of magnets are embedded in the magnetic positioning plate.

[0017] As a further description of the above technical solution, buffer pads are provided on the opposite end surfaces of the striking hammer and the handle.

[0018] As a further description of the above technical solution, a threaded hole is provided at one end of the pin pulling block.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model uses a sliding striking hammer to strike a handle, and the pin is pulled out by inertia, thereby improving the efficiency of pulling out the pin and reducing the labor of the operator.

[0021] 2. The utility model aligns the opening of the locator with the position of the pin, and then connects the pin pulling block to the pin, and then repeats the method of using the pin puller. Through the limit of the locator, the pin will not have axial displacement during the process of pulling out the pin, thereby reducing the friction between the pin and the inner wall of the pin hole, making it easier to pull out a longer pin.

[0022] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the pin puller of the utility model;

[0024] Figure 2 is a schematic diagram of a pin puller according to another embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the utility model equipped with a positioner pin puller;

[0026] Figure 4 It is a cross-sectional view of the utility model with a positioner pin puller installed;

[0027] Figure 5 It is a schematic diagram of the positioner of the utility model.

[0028] Figure numerals: 1. main rod; 2. pin pulling block; 3. knock hammer; 4. handle; 5. handle; 6. anti-slip layer; 7. positioner; 701. sleeve; 702. connecting rod; 703. fixing ring; 704. support rod; 705. magnetic positioning plate; 706. opening; 707. strong magnet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0030] like Figure 1 As shown, in one embodiment, a pin puller includes a main rod, a handle is fixedly connected to one end of the main rod, and a pin puller block is welded to the other end of the main rod. The pin puller block can be connected to a pin. If the head end of the pin is a threaded structure, a corresponding threaded structure is arranged inside the pin puller block, and the pin puller block and the pin are screwed together to achieve the fixation of the two. A striking hammer is slidably connected to the main rod, and the striking hammer can slide along the main rod. When in use, after the pin puller block is connected to the pin, the striking hammer is slid, and the striking hammer strikes the handle, and the pin is pulled out by inertia, which can improve the efficiency of pin pulling and reduce the labor of the operator.

[0031] refer to Figure 2 Another embodiment provided by the present application is different from the previous embodiment in that the pin pulling block is connected to the main rod by a threaded connection, so that the pin pulling block can be replaced and can adapt to various pin models, thereby improving the applicability of the entire pin puller. At the same time, a handle is welded on the outside of the pin pulling block in this embodiment, which can make it more convenient for the operator to use it. The outer surface of the handle is coated with an anti-slip layer, such as a rubber layer, which can effectively improve the anti-slip effect and also transmit the vibration to the human hand when the hammer hits the handle to a certain extent.

[0032] Further, a buffer pad is provided on the opposite end faces of the percussion hammer 3 and the handle 4, and the buffer pad can reduce the problem of easy damage of the percussion hammer 3 and the handle 4 caused by the hard contact between the percussion hammer 3 and the handle 4. At the same time, the buffer pad can be made of rubber material.

[0033] refer to Figure 3-Figure 4Another embodiment provided by the present application is different from the above-mentioned embodiment in that a positioner 7 is slidably connected to the side of the main rod 1 close to the pin pulling block 2, and the positioner 7 is sleeved on the outside of the pin pulling block 2, wherein the positioner 7 includes a sleeve 701 slidably connected to the outside of the main rod 1, and the sleeve 701 radiates outwardly with a plurality of connecting rods 702, and a fixing ring 703 is arranged on the outside of the connecting rod 702, and the fixing ring 703 is provided with a plurality of supporting rods 70 along the length direction of the main rod 1. 4. The support rod 704 is connected to the magnetic positioning disk 705, and an opening 706 is opened at the center of the magnetic positioning disk 705. When in use, the opening 706 of the locator 7 is aligned with the position of the pin, and then the pin pulling block 2 is connected to the pin, and then the method of using the pin puller is repeated. Through the limit of the locator 7, the pin will not have axial displacement during the process of pulling out the pin, thereby reducing the greater friction between the pin and the inner wall of the pin hole, making it easier to pull out a longer pin.

[0034] It should be noted that the magnetic positioning disk 705 is embedded with multiple strong magnets 707. Through the multiple strong magnets 707, the locator 7 can be adsorbed near the corresponding pins. In order to maintain the adsorption performance of the locator 7, the locator 7 can be removed after use, and the strong magnets 707 are also replaced with electromagnets. The electromagnet is started when power is turned on and the power is turned off after the pin is pulled out, thereby facilitating the removal of the locator 7.

[0035] As for the pin pulling block 2, a threaded hole is provided at one end thereof so that it can be connected with a pin.

[0036] The striking hammer 3 is a metal block with a through hole at the center and a certain weight.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pin puller, characterized in that: include: A main rod, one end of which is fixedly connected to a handle; A pin pulling block connected to the other end of the main rod, the pin pulling block is used to connect with the pin; A knock hammer, slidably connected to the surface of the main rod, and the knock hammer is used to knock the end surface of the handle to pull out the pin; A locator is slidably connected to one side of the main rod close to the pin pulling block, and the locator is sleeved on the outside of the pin pulling block.

2. The pin puller according to claim 1, characterized in that: The pin pulling block is connected to the main rod by welding.

3. The pin puller according to claim 1, characterized in that: The pin pulling block is movably connected to the main rod via threads.

4. The pin puller according to claim 1, characterized in that: One end of the striking hammer is fixedly connected to a handle, and the surface of the handle is provided with an anti-slip layer.

5. The pin puller according to claim 1, characterized in that: The positioner includes a sleeve slidably connected to the outside of the main rod, the sleeve has a plurality of connecting rods radiating outwardly, a fixing ring is arranged on the outside of the connecting rod, the fixing ring has a plurality of supporting rods arranged along the length direction of the main rod, the supporting rods are connected to a magnetic positioning disk, and an opening is opened at the center of the magnetic positioning disk.

6. The pin puller according to claim 5, characterized in that: The diameter of the opening is not less than the diameter of the pin pulling block.

7. The pin puller according to claim 5, characterized in that: The magnetic positioning plate is inlaid with a plurality of magnets.

8. The pin puller according to claim 1, characterized in that: The end surfaces opposite to the striking hammer and the handle are both provided with buffer pads.

9. The pin puller according to claim 1, characterized in that: One end of the pin pulling block is provided with a threaded hole.

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