Brake piston extraction tool

Abstract

The utility model relates to the technical field of piston extraction, in particular to a brake piston extraction tool which comprises a fixed lower plate, a positioning shaft is fixedly connected to the middle of the top end of the fixed lower plate, a fixed upper plate is fixedly connected to the top end of the positioning shaft, and a clamping mechanism used for automatically opening a tong head is arranged on the fixed lower plate. The clamping mechanism comprises a lower rotating disc, the lower rotating disc is rotationally connected to a positioning shaft, an upper rotating disc is rotationally connected to the position, located above the lower rotating disc, of the positioning shaft, sliding frames are fixedly connected to the left end of the upper rotating disc and the left end of the lower rotating disc, and the sliding frame located on the front side is connected with the lower rotating disc. According to the semi-automatic piston clamping device, the piston is automatically clamped through cooperation of the lower fixing plate and the clamping mechanism, operation is easy, the piston can be automatically clamped through the clamping head when the handle is loosened, semi-automation is achieved, time and labor are saved when the piston is clamped, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of piston extraction, in particular to a brake piston extraction tool. Background Art

[0002] When repairing the brake piston inside the brake, a piston extractor is needed to remove the piston from the brake. When the piston extractor is used to remove the piston, the brake needs to be disassembled, and then the piston extractor is used to clamp and remove the piston inside the brake. When removing the piston with the existing piston extractor, the operator needs to engage the handle to make the head of the piston extractor clamp the piston, and then remove the piston from the brake after the piston is firmly clamped, and then the handle is opened outwards to complete the removal of the piston. This method of removing the piston is time-consuming and labor-intensive, and has poor practicality. In view of the above problems, the present application designs a brake piston extraction tool. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a brake piston extraction tool.

[0005] (II) Technical solution

[0006] The cam is secured to the bottom of the fixing plate and is adapted to engage the camshaft of the fixing plate so that the camshaft can be moved in a rotationally relative manner to the top of the fixing plate.

[0007] In order to clamp the piston, the utility model has an improvement in that the right end of the lower rotating disk and the right end of the upper rotating disk are both fixedly connected with a clamping plate, the clamping plate located on the front side is fixedly connected to the lower rotating disk, and the clamping plate located on the rear side is fixedly connected to the upper rotating disk, and the sliding frame is in an open state when the clamping plates are closed.

[0008] In order to prevent the piston from slipping during the clamping process, the utility model is improved in that the opposite surface of the clamping plate is provided with an anti-skid clamping groove.

[0009] In order to facilitate the extension of the handle, the utility model is improved in that a sliding opening is provided at the left end of the sliding frame, and an extension frame is slidably connected in the sliding opening.

[0010] In order to prevent the handle from being pushed out of the hand when clamping the piston, the utility model is improved in that the right end of the extension frame is fixedly connected with an anti-slip handle.

[0011] In order to fix the extension frame, the utility model is improved in that the top end of the sliding frame is located at the position of the extension frame and is rotatably connected with a fixing screw.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a brake piston extraction tool, which has the following beneficial effects:

[0014] The brake piston extraction tool realizes automatic clamping of the piston by fixing the lower plate and the clamping mechanism. The device is relatively simple to operate and can automatically clamp the piston with the clamping head when the handle is released, thus realizing semi-automatic operation, saving time and effort when clamping the piston and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the first partial structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the second partial structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the third partial structure of the utility model.

[0019] In the figure: 1. Fixed lower plate; 2. Positioning shaft; 3. Fixed upper plate; 4. Lower rotating disk; 5. Upper rotating disk; 6. Sliding frame; 7. Limiting plate; 8. First connecting plate; 9. Second connecting plate; 10. Tension spring; 11. Clamping plate; 12. Anti-slip clamping groove; 13. Sliding opening; 14. Extension frame; 15. Anti-slip grip; 16. Fixing screw. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , a brake piston extraction tool comprises a fixed lower plate 1, a positioning shaft 2 is fixedly connected to the middle position of the top of the fixed lower plate 1, a fixed upper plate 3 is fixedly connected to the top of the positioning shaft 2, a clamping mechanism for automatically opening the pliers head is arranged on the fixed lower plate 1, and the clamping mechanism comprises a lower rotating disk 4, the lower rotating disk 4 is rotatably connected to the positioning shaft 2, an upper rotating disk 5 is rotatably connected to the positioning shaft 2 above the lower rotating disk 4, the left end of the upper rotating disk 5 and the left end of the lower rotating disk 4 are both fixedly connected to a sliding frame 6, the sliding frame 6 located on the front side is connected to the lower rotating disk 4, and the sliding frame 6 located on the rear side is connected to the upper rotating disk 5, the front and rear ends of the fixed lower plate 1 and the fixed upper plate 3 are fixedly connected to a limiting plate 7, the limiting A first connecting plate 8 is fixedly connected to the plate 7, a second connecting plate is fixedly connected to the outer side of the sliding frame 6 at a position opposite to the first connecting plate 8, a tension spring 10 is fixedly connected to the left end of the first connecting plate 8 and the right end of the second connecting plate 9, a clamping plate 11 is fixedly connected to the right end of the lower rotating disk 4 and the right end of the upper rotating disk 5, the clamping plate 11 located on the front side is fixedly connected to the lower rotating disk 4, and the clamping plate 11 located on the rear side is fixedly connected to the upper rotating disk 5, the sliding frame 6 is in an open state when the clamping plate 11 is closed, a sliding opening 13 is provided at the left end of the sliding frame 6, an extension frame 14 is slidably connected in the sliding opening 13, and the top end of the sliding frame 6 is located at the position of the extension frame 14 and is rotatably connected to a fixing screw 16.

[0022] When the device is in use, the brake is first disassembled, and then the anti-skid grip 15 is relatively pinched to adjust the length of the anti-skid grip 15 according to actual conditions, and the anti-skid grip 15 is pulled backward. The anti-skid grip 15 drives the extension frame 14 to slide backward in the sliding opening 13, and the two anti-skid grips 15 are adjusted to the same length. After the adjustment is completed, the fixing screws 16 are tightened, and the fixing screws 16 fix the extension frame 14. Then the anti-skid grip 15 is relatively pinched, and the anti-skid grip 15 drives the extension frame 14 to rotate, and the extension frame 14 drives the sliding frame 6 to rotate. The extension frame 14 located on the front side drives the lower rotating disk 4 to rotate, and the sliding frame 6 located on the rear side drives the upper rotating disk to rotate. The rotation of the sliding frame 6 drives the second connecting plate 9 to move, and the second connecting plate 9 pulls the tension spring 10, and the tension spring 10 When in the force-generating state, the lower rotating disk 4 drives the clamping plate 11 at the front side to open, and the upper rotating disk 5 drives the clamping plate 11 at the rear side to open, and then the clamping plate 11 is aligned with the piston, and then the anti-slip handle 15 is slowly released, and the tension spring 10 is retracted by force, and the tension spring 10 drives the second connecting plate 9 to move outward, and the second connecting plate 9 drives the movable sliding frame 6 to move, and the sliding frame 6 located at the front side drives the lower rotating disk 4 to move, and at the same time, the sliding frame 6 located at the rear side drives the upper rotating disk 5 to move, and the sliding frame 6 drives the extension frame 14 to move, and the extension frame 14 drives the anti-slip handle 15 to move, and at the same time, the lower rotating disk 4 drives the clamping plate 11 at the front side to close, and the upper rotating disk 5 drives the clamping plate 11 at the rear side to close, and the clamping plate 11 clamps the piston in and out, and then the piston can be taken out of the brake.

[0023] It is found in actual use that due to the presence of hydraulic oil on the piston, the piston will slip on the clamping plate 11 when clamped by the clamping plate 11. To avoid the above problem, in this embodiment, an anti-slip clamping groove 12 is provided on the opposite side of the clamping plate 11.

[0024] It is found in actual use that the handle will slip out of the hand due to the tension spring 10 being under stress when the handle is closed. To avoid the above problem, in this embodiment, the right end of the extension frame 14 is fixedly connected with an anti-slip handle 15.

[0025] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0026] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0027] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0028] Although 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 brake piston extraction tool, comprising a fixed lower plate (1), characterized in that: A positioning shaft (2) is fixedly connected to the middle position of the top end of the fixed lower plate (1), and a fixed upper plate (3) is fixedly connected to the top end of the positioning shaft (2). A clamping mechanism for clamping the piston is provided on the fixed lower plate (1), and the clamping mechanism comprises a lower rotating disk (4), and the lower rotating disk (4) is rotatably connected to the positioning shaft (2). An upper rotating disk (5) is rotatably connected to the positioning shaft (2) above the lower rotating disk (4), and the left end of the upper rotating disk (5) and the left end of the lower rotating disk (4) are both fixedly connected to a sliding plate. The sliding frame (6) is connected to the lower rotating disk (4) at the front side, and the sliding frame (6) is connected to the upper rotating disk (5) at the rear side. The front and rear ends of the fixed lower plate (1) and the fixed upper plate (3) are fixedly connected to a limiting plate (7). The limiting plate (7) is fixedly connected to a first connecting plate (8). The outer side of the sliding frame (6) is fixedly connected to a second connecting plate at a position opposite to the first connecting plate (8). The left end of the first connecting plate (8) and the right end of the second connecting plate (9) are fixedly connected to a tension spring (10).

2. A brake piston extraction tool according to claim 1, characterized in that: The right ends of the lower rotating disk (4) and the upper rotating disk (5) are both fixedly connected with a clamping plate (11); the clamping plate (11) located at the front side is fixedly connected to the lower rotating disk (4), and the clamping plate (11) located at the rear side is fixedly connected to the upper rotating disk (5); the sliding frame (6) is in an open state when the clamping plate (11) is closed.

3. A brake piston extraction tool according to claim 2, characterized in that: The opposite surface of the clamping plate (11) is provided with an anti-slip clamping groove (12).

4. A brake piston extraction tool according to claim 3, characterized in that: A sliding opening (13) is provided at the left end of the sliding frame (6), and an extension frame (14) is slidably connected in the sliding opening (13).

5. A brake piston extraction tool according to claim 4, characterized in that: The right end of the extension frame (14) is fixedly connected with an anti-slip handle (15).

6. A brake piston extraction tool according to claim 5, characterized in that: The top end of the sliding frame (6) is located at the position of the extension frame (14) and is rotatably connected with a fixing screw (16).

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