Tool for quickly disassembling brake clamp piston

Abstract

The utility model discloses a tool for quickly disassembling a brake clamp piston, and relates to the technical field of disassembling tools. A tool for rapidly disassembling a brake clamp piston comprises a supporting sleeve and a screw inserted into the supporting sleeve, one end of the screw is fixedly connected with a connecting rod, the two ends of the connecting rod are arranged in an arc shape, and the end, away from the screw, of the connecting rod is fixedly connected with a top ball; the fixing sleeve is detachably connected to the connecting rod, and a plurality of inserting holes are formed in the circumference of the fixing sleeve at equal intervals; the fixing rod is inserted into the inserting hole, one end of the fixing rod is fixedly connected with a push block, and the push block abuts against the top ball; according to the utility model, not only can the piston be quickly disassembled, but also the distance of the fixed rod pushed by the push block to move towards the outside of the insertion hole can be controlled according to the rotating depth of the top ball towards the inside of the fixed sleeve, so that the tool can be suitable for limiting and fixing pistons with different sizes, and the practicability of the tool is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of disassembly tools, in particular to a tool for quickly disassembling a brake clamp piston. Background Art

[0002] Currently, most rail transit vehicles in operation use disc brakes. During braking, the brake control unit ventilates the brake caliper piston through the brake pipe, and the brake caliper piston pushes the brake caliper lever to move, and finally the brake disc is clamped through the brake pad to achieve braking.

[0003] With the continuous use of disc brakes, the piston of the brake caliper will wear out. Therefore, when the piston of the brake caliper is seriously worn and affects the use, it is necessary to use tools to remove the piston of the brake caliper.

[0004] However, the existing tools are inconvenient to operate when disassembling the piston of the brake caliper, which reduces the disassembly speed of the brake caliper piston. In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tool for quickly disassembling a brake caliper piston which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A tool for quickly disassembling a brake caliper piston comprises a support sleeve and a screw rod inserted into the support sleeve, wherein one end of the screw rod is fixedly connected to a connecting rod, both ends of the connecting rod are arranged in an arc shape, and one end of the connecting rod away from the screw rod is fixedly connected to a top ball; a fixed sleeve is detachably connected to the connecting rod, wherein a plurality of plug holes are equidistantly provided on the circumference of the fixed sleeve; a fixed rod is inserted into the plug hole, one end of the fixed rod is fixedly connected to a push block, and the push block abuts against the top ball; a driving mechanism is arranged on the support sleeve and is used to drive the screw rod to drive the fixed sleeve to move.

[0008] Preferably, the driving mechanism comprises a threaded sleeve and a hand rod symmetrically fixedly connected to the threaded sleeve, and the threaded sleeve is connected to a supporting sleeve and is threadedly connected to the screw rod.

[0009] In order to extend the length of the handle bar according to demand, a sleeve rod is further included, which is threadedly connected to the handle bar and is used to extend the length of the handle bar.

[0010] In order to increase the friction coefficient of the sleeve rod surface, further, anti-slip grooves are arranged on the outer wall of the sleeve rod.

[0011] In order to reduce the wear of the threaded sleeve, it further includes a gasket ring sleeved on the screw rod, the gasket ring is in contact with the support sleeve, a plurality of balls are equidistantly arranged on the circumference of the gasket ring, and the lower surface of the threaded sleeve is in contact with the balls.

[0012] In order to facilitate the disassembly of the fixing sleeve by the staff, preferably, the fixing sleeve is threadedly connected to the connecting rod.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model can not only realize the rapid disassembly of the piston, but also can control the distance that the push block pushes the fixing rod to move out of the plug-in hole according to the rotation depth of the top ball into the fixing sleeve, so that it can be suitable for the limited fixation of pistons of different sizes, thereby improving the practicality of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the support sleeve, threaded sleeve and fixed sleeve of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure expansion of the utility model;

[0018] Figure 4 It is a cross-sectional view of the fixing sleeve of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a gasket ring and a rolling ball of the utility model.

[0020] In the figure: 1, support sleeve; 101, gasket; 102, rolling ball; 2, screw; 201, connecting rod; 202, top ball; 3, threaded sleeve; 301, hand lever; 302, sleeve rod; 4, fixing sleeve; 401, plug-in hole; 402, fixing rod; 403, push block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0022] Embodiment 1:

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A tool for quickly disassembling a brake caliper piston comprises a support sleeve 1 and a screw rod 2 plugged into the support sleeve 1, wherein one end of the screw rod 2 is fixedly connected to a connecting rod 201, both ends of the connecting rod 201 are arranged in an arc shape, and one end of the connecting rod 201 away from the screw rod 2 is fixedly connected to a top ball 202; a fixed sleeve 4 is detachably connected to the connecting rod 201, wherein a plurality of plug holes 401 are equidistantly provided on the circumference of the fixed sleeve 4; a fixed rod 402 is plugged into the plug hole 401, one end of the fixed rod 402 is fixedly connected to a push block 403, and the push block 403 abuts against the top ball 202; a driving mechanism is arranged on the support sleeve 1, and is used to drive the screw rod 2 to drive the fixed sleeve 4 to move.

[0024] The driving mechanism comprises a threaded sleeve 3 and a hand rod 301 symmetrically fixedly connected to the threaded sleeve 3 . The threaded sleeve 3 is connected to the supporting sleeve 1 and is threadedly connected to the screw rod 2 .

[0025] The fixing sleeve 4 is threadedly connected to the connecting rod 201 .

[0026] When the piston in the piston cavity of the brake caliper needs to be disassembled, the fixing sleeve 4 with the fixing rod 402 is first inserted into the piston, and then the connecting rod 201 is assembled to the fixing sleeve 4 by threaded connection. Then the screw rod 2 is rotated, and the screw rod 2 drives the connecting rod 201 to drive the top ball 202 to rotate into the fixing sleeve 4. When the top ball 202 moves a certain distance into the fixing sleeve 4, the push block 403 is pushed to drive the fixing rod 402 to move out of the insertion hole 401 until the fixing rod 402 abuts against the inner wall of the piston cylinder, so that it limits and fixes the movable Plug the cylinder, then sleeve the support sleeve 1 on the screw rod 2 until the support sleeve 1 contacts the surface of the brake caliper, then assemble the threaded sleeve 3 on the screw rod 2 by means of threaded connection, until the threaded sleeve 3 fits the top surface of the support sleeve 1, then drive the threaded sleeve 3 to fit the top surface of the support sleeve 1 and rotate by the hand lever 301, and at the same time, the threaded sleeve 3 drives the screw rod 2 to move to the side away from the support sleeve 1, thereby pulling the piston fixed by the limit to move outside the piston cavity of the brake caliper, until the piston cylinder is pulled out of the piston cavity, thereby realizing the rapid disassembly of the piston;

[0027] By rotating the screw 2 to drive the connecting rod 201 to drive the top ball 202 to rotate into the fixed sleeve 4, the push block 403 can be controlled to push the fixing rod 402 to move out of the plug-in hole 401 according to the depth of the top ball 202 rotating into the fixed sleeve 4, so that it can be suitable for limiting the fixation of pistons of different sizes, thereby improving the practicality of the tool.

[0028] Embodiment 2:

[0029] Reference Figure 2 , Figure 3, a tool for quickly disassembling a brake caliper piston, which is basically the same as that of the first embodiment, and further comprises a sleeve rod 302, which is threadedly connected to the hand lever 301 and is used to extend the length of the hand lever 301; by setting the sleeve rod 302, the length of the hand lever 301 can be extended as required, so that when the staff drives the threaded sleeve 3 to rotate through the hand lever 301, the threaded sleeve 3 can be driven to rotate by using the lever principle with relatively less effort, so that the staff can disassemble the piston with relatively less effort through the tool;

[0030] The outer wall of the sleeve rod 302 is provided with anti-skid patterns; the anti-skid patterns can increase the friction coefficient of the surface of the sleeve rod 302.

[0031] Embodiment 3:

[0032] Reference Figure 2 , Figure 4 and Figure 5 , a tool for quickly disassembling a brake caliper piston, which is basically the same as Example 1, and further includes a gasket 101 sleeved on the screw rod 2, the gasket 101 is in contact with the support sleeve 1, and a plurality of balls 102 are equidistantly arranged on the circumference of the gasket 101, and the lower surface of the threaded sleeve 3 is in contact with the balls 102; when the threaded sleeve 3 rotates on the support sleeve 1, the friction resistance of the support sleeve 1 during rotation is reduced by the arrangement of the gasket 101 and the balls 102, so that the threaded sleeve 3 can be driven to rotate more smoothly through the hand lever 301, thereby extending the service life of the threaded sleeve 3.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A tool for quickly removing a brake caliper piston, characterized in that: It comprises a support sleeve (1) and a screw rod (2) inserted into the support sleeve (1). One end of the screw rod (2) is fixedly connected to a connecting rod (201), both ends of the connecting rod (201) are arranged in an arc shape, and one end of the connecting rod (201) away from the screw rod (2) is fixedly connected to a top ball (202); A fixing sleeve (4) is detachably connected to the connecting rod (201). Wherein, the fixing sleeve (4) is provided with a plurality of plug-in holes (401) at equal intervals on the circumference; A fixing rod (402) is inserted into the insertion hole (401), one end of the fixing rod (402) is fixedly connected to a push block (403), and the push block (403) abuts against the top ball (202); The driving mechanism is arranged on the supporting sleeve (1) and is used to drive the screw rod (2) to drive the fixing sleeve (4) to move.

2. A tool for quickly removing a brake caliper piston according to claim 1, characterized in that: The driving mechanism comprises a threaded sleeve (3) and a hand lever (301) symmetrically fixedly connected to the threaded sleeve (3); the threaded sleeve (3) is connected to the support sleeve (1) and is threadedly connected to the screw rod (2).

3. A tool for quickly removing a brake caliper piston according to claim 2, characterized in that: It also comprises a sleeve rod (302), wherein the sleeve rod (302) is threadedly connected to the hand rod (301) and is used to extend the length of the hand rod (301).

4. A tool for quickly removing a brake caliper piston according to claim 3, characterized in that: The outer wall of the sleeve rod (302) is provided with anti-slip grooves.

5. A tool for quickly disassembling a brake caliper piston according to claim 2, characterized in that: It also comprises a gasket ring (101) sleeved on the screw rod (2), the gasket ring (101) is in contact with the support sleeve (1), a plurality of rolling balls (102) are equidistantly arranged on the circumference of the gasket ring (101), and the lower surface of the threaded sleeve (3) is in contact with the rolling balls (102).

6. A tool for quickly removing a brake caliper piston according to claim 1, characterized in that: The fixing sleeve (4) is threadedly connected to the connecting rod (201).

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