Brake caliper hook structure

Abstract

The utility model discloses a brake caliper hook structure which comprises a brake caliper body and a hook body, the top of the brake caliper body is provided with a wheel connecting rod, an inner ring of the hook body is sleeved with a neck bush, and the neck bush comprises a first bush plate and a second bush plate. The sides, close to each other, of the first lining plate and the second lining plate are fixedly connected with a first inner sleeve and a second inner sleeve correspondingly, the first inner sleeve is arranged on the outer ring of the wheel connecting rod in a sleeving mode, a limiting assembly is arranged in the second inner sleeve and connected with the first inner sleeve in an inserted mode, and a wear-resisting sleeve is arranged on the outer surface of the first inner sleeve. And the wear-resistant sleeve is in interference fit with the hook body. According to the utility model, the hook adopts a toothless design, so that the hook body and the neck bush have no gap with a wheel connecting rod when being assembled, the braking effect of the brake caliper body cannot be influenced, and meanwhile, the return effect of the toothless hook is better than that of a toothed hook, so that a brake system can operate normally.

Description

TECHNICAL FIELD

[0001] The utility model belongs to brake caliper technical field, especially relate to brake caliper hook structure. BACKGROUND

[0002] Brake caliper is the caliper device with the function of making the moving wheel decelerate, stop or keep the stop state, generally only used in disc brake system. The caliper hook is mainly used for automatic parking. The traditional caliper hook and the wheel connecting rod are connected through the tooth pattern. The toothed hook has the gap with the connecting rod during assembly. With the increase of the rotation times, the gap will become larger due to the abrasion, so that the brake piston cannot be moved to the position, thereby causing the brake to be unable to be completely locked, and the normal operation of the brake system is affected. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides the following technical scheme:

[0004] The brake caliper hook structure includes a brake caliper body and a hook body. The top of the brake caliper body is provided with a wheel connecting rod. The inner ring of the hook body is provided with an inner bushing. The inner bushing includes a first bushing plate and a second bushing plate. The first bushing plate and the second bushing plate are respectively fixedly connected with a first inner sleeve and a second inner sleeve on the side close to each other. The first inner sleeve is sleeved on the outer ring of the wheel connecting rod. The inner part of the second inner sleeve is provided with a limiting assembly and is inserted with the first inner sleeve.

[0005] As a preferred technical scheme of the above technical scheme, the outer surface of the first inner sleeve is provided with a wear-resistant sleeve. The wear-resistant sleeve is in interference fit with the hook body.

[0006] As a preferred technical scheme of the above technical scheme, the limiting assembly includes a threaded rod. The threaded rod is in threaded connection with the second bushing plate. One end of the threaded rod located in the inner part of the second inner sleeve is fixedly connected with an extrusion boss. The two sides of the extrusion boss are provided with a positioning assembly installed on the side wall of the limiting assembly.

[0007] As a preferred technical scheme of the above technical scheme, the positioning assembly includes an anti-dropping baffle. The side wall of the second inner sleeve is provided with a movable cavity. The anti-dropping baffle is in sliding connection with the side wall of the movable cavity. The inner ring of the anti-dropping baffle is fixedly sleeved with a positioning rod. One end of the positioning rod is inserted with the first inner sleeve, and the other end is in abutment with the side wall of the extrusion boss. One side of the anti-dropping baffle is fixedly connected with a return spring. One end of the return spring away from the anti-dropping baffle is connected with the side wall of the movable cavity.

[0008] The utility model has the advantages of:

[0009] 1. The hook of the utility model adopts the design of no tooth, make the hook body and the inner bushing have no gap with the wheel connecting rod when assembling, will not affect the brake effect of brake caliper body, at the same time, the return effect of toothless hook is better than that of toothed hook, so that the brake system can operate normally.

[0010] 2. The anti-dropping baffle and the positioning rod are not interfered by any external force, and after the extrusion boss is away from the positioning rod, the positioning rod is pulled away from the first inner sleeve by the force of the reset spring, so that the second inner sleeve can be pulled out from the inside of the first inner sleeve, facilitating the disassembly of the first bushing plate and the second bushing plate, and facilitating the replacement of the excessively worn wear-resistant sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The figure shows the schematic diagram of the hook structure of the brake caliper in the embodiment.

[0012] Figure 2 The figure shows the structural schematic diagram of the hook body in the embodiment.

[0013] Figure 3 The figure shows the structural schematic diagram of the inner bushing in the embodiment.

[0014] Figure 4 The figure shows the Figure 3 The figure shows the structural enlarged schematic diagram of A in the embodiment.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] 10, brake caliper body; 11, wheel connecting rod; 20, hook body; 30, inner bushing; 31, first bushing plate; 32, first inner sleeve; 33, wear-resistant sleeve; 34, second bushing plate; 35, second inner sleeve; 36, limiting assembly; 361, threaded rod; 362, extrusion boss; 363, anti-dropping baffle; 364, positioning rod; 365, reset spring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely in combination with the embodiment.

[0018] EMBODIMENT

[0019] As Figure 1 , Figure 2 , Figure 3 And Figure 4As shown, the brake caliper hook structure includes a brake caliper body 10 and a hook body 20. A wheel connecting rod 11 is provided on the top of the brake caliper body 10. An inner bushing 30 is provided on the inner ring of the hook body 20. The inner bushing 30 includes a first bushing plate 31 and a second bushing plate 34. A first inner sleeve 32 and a second inner sleeve 35 are fixedly connected to the sides of the first bushing plate 31 and the second bushing plate 34 that are close to each other. The first inner sleeve 32 is fitted on the outer ring of the wheel connecting rod 11. A limit component 36 is provided inside the second inner sleeve 35 and is inserted into the first inner sleeve 32.

[0020] Specifically, the first inner sleeve 32 adopts a toothless design, which ensures that the hook body 20 and the inner sleeve 30 have no gap with the wheel connecting rod 11 during assembly, and will not affect the braking effect of the brake caliper body 10. At the same time, the toothless hook has a better return effect than the toothed hook, allowing the braking system to operate normally.

[0021] like Figure 3 As shown, the outer surface of the first inner sleeve 32 is provided with a wear-resistant sleeve 33, and the wear-resistant sleeve 33 is interference-fitted with the hook body 20.

[0022] It should be noted that the wear-resistant sleeve 33 is made of, but is not limited to, copper, to improve corrosion resistance and wear resistance.

[0023] like Figure 3 and Figure 4 As shown, the limiting component 36 includes a threaded rod 361, which is threadedly connected to the second bushing plate 34. One end of the threaded rod 361 located inside the second inner sleeve 35 is fixedly connected to a pressing boss 362. Positioning components installed on the sidewall of the limiting component 36 are provided on both sides of the pressing boss 362.

[0024] Specifically, the extrusion boss 362 is in the shape of a "bullet". Rotating the threaded rod 361 can drive the extrusion boss 362 to rotate and move together through the threaded engagement with the second bushing plate 34. At the same time, the maximum diameter of the extrusion boss 362 is less than or equal to the minimum diameter of the threaded rod 361, so that it can move from the inside of the second inner sleeve 35 to the outside.

[0025] like Figure 4 As shown, the positioning assembly includes an anti-detachment baffle 363. The side wall of the second inner sleeve 35 has a movable cavity. The anti-detachment baffle 363 is slidably connected to the side wall of the movable cavity. The inner ring of the anti-detachment baffle 363 is fixedly fitted with a positioning rod 364. One end of the positioning rod 364 is inserted into the first inner sleeve 32, and the other end abuts against the side wall of the extrusion boss 362. A return spring 365 is fixedly connected to one side of the anti-detachment baffle 363. The end of the return spring 365 away from the anti-detachment baffle 363 is connected to the side wall of the movable cavity.

[0026] Specifically, when the anti-detachment baffle 363 and the positioning rod 364 are in the absence of any external interference and the pressing boss 362 is far away from the positioning rod 364, the force of the return spring 365 will pull the positioning rod 364 away from the first inner sleeve 32, which will allow the second inner sleeve 35 to be pulled out from the inside of the first inner sleeve 32, making it convenient to separate the first bushing plate 31 and the second bushing plate 34, and to facilitate the replacement of the excessively worn wear-resistant sleeve 33.

[0027] Working principle: Rotating the threaded rod 361, through its threaded engagement with the second bushing plate 34, drives the extrusion boss 362 to rotate and move together. When the extrusion boss 362 moves away from the positioning rod 364, the anti-disengagement baffle 363 and the positioning rod 364, without any external interference, can pull the positioning rod 364 away from the first inner sleeve 32 through the force of the return spring 365. This allows the second inner sleeve 35 to be pulled out from inside the first inner sleeve 32, facilitating the separation of the first bushing plate 31 and the second bushing plate 34. This makes it easier to replace the excessively worn wear-resistant sleeve 33. After replacement, the second inner sleeve 35 is reinserted into the first inner sleeve 32. Then, the threaded rod 361 is rotated in the opposite direction. Since the extrusion boss 362 is in the shape of a "bullet", the threaded rod 361 will push the side positioning rod 364 to move closer to the first inner sleeve 32, allowing the positioning rod 364 to re-engage with the first inner sleeve 32, completing the assembly.

[0028] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A brake caliper hook structure, comprising a brake caliper body (10) and a hook body (20), characterized in that: The top of the brake caliper body (10) is provided with a wheel connecting rod (11), and the inner ring of the hook body (20) is provided with an inner bushing (30). The inner bushing (30) includes a first bushing plate (31) and a second bushing plate (34). The first bushing plate (31) and the second bushing plate (34) are respectively fixedly connected to the side of the first bushing plate (31) and the second bushing plate (34) that are close to each other. The first inner bushing (32) is fitted on the outer ring of the wheel connecting rod (11), and the second inner bushing (35) is provided with a limit component (36) that is inserted into the first inner bushing (32).

2. The brake caliper hook structure according to claim 1, characterized in that, The outer surface of the first inner sleeve (32) is provided with a wear-resistant sleeve (33), and the wear-resistant sleeve (33) is interference-fitted with the hook body (20).

3. The brake caliper hook structure according to claim 2, characterized in that, The limiting component (36) includes a threaded rod (361), which is threadedly connected to the second bushing plate (34), and one end of the threaded rod (361) located inside the second inner sleeve (35) is fixedly connected to a pressing boss (362). Both sides of the pressing boss (362) are provided with positioning components installed on the side wall of the limiting component (36).

4. The brake caliper hook structure according to claim 3, characterized in that, The positioning assembly includes an anti-detachment baffle (363), and the side wall of the second inner sleeve (35) is provided with a movable cavity. The anti-detachment baffle (363) is slidably connected to the side wall of the movable cavity, and the inner ring of the anti-detachment baffle (363) is fixedly fitted with a positioning rod (364). One end of the positioning rod (364) is inserted into the first inner sleeve (32), and the other end abuts against the side wall of the extrusion boss (362). A return spring (365) is fixedly connected to one side of the anti-detachment baffle (363), and the end of the return spring (365) away from the anti-detachment baffle (363) is connected to the side wall of the movable cavity.

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