Brake guide sleeve anti-falling structure

By adding a lubrication device and an anti-detachment structure to the brake, the problems of guide sleeve wear and detachment are solved, achieving the effects of reducing friction and wear and preventing detachment, thereby improving the service life and reliability of the brake.

CN223814276UActive Publication Date: 2026-01-20HANGZHOU FUYANG FORK TRUCK BRAKE
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Patent Information

Application Number
CN202520479334.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-01-20
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

During braking, friction and heat can cause the guide sleeve to wear rapidly and potentially come off, affecting the normal operation of the brake.

Method used

Add a lubrication device and anti-disengagement structure to the brake, including a sliding guide sleeve unit and an anti-disengagement unit, reduce friction by injecting lubricant, and prevent disengagement by using rubber sealing plugs and limiting structures.

Benefits of technology

It effectively reduces friction and wear, prevents the guide sleeve from detaching, and improves the service life and reliability of the brake.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a brake guide sleeve anti-falling structure, which relates to the technical field of brake structures and comprises a caliper body shell, a sliding guide sleeve unit and an anti-falling unit. A sliding guide sleeve unit and an anti-disengaging unit are installed on the inner side of the clamp body shell. The sliding guide sleeve unit comprises a first guide sleeve, oil injection cavities and a rubber sealing plug, the first guide sleeve is fixedly connected to the inner side of the middle of the caliper body shell, the two oil injection cavities are formed in the left end and the right end of the first guide sleeve, and the oil injection cavities evenly communicate with the inner side of the first guide sleeve in a left-right excessive mode. The upper end of the inner side of the oil injection cavity is slidably connected with a rubber sealing plug, the sliding guide sleeve unit further comprises a sealing cover and a rubber sealing ring, the upper end of the inner side of the sealing cover is fixedly connected with the rubber sealing ring, and threads are formed in the lower end of the inner side of the sealing cover. Abrasion caused by friction is reduced by adding the lubricating device, and the caliper body is prevented from being separated from the guide sleeves through the anti-disengaging guide sleeves on the two sides.
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Description

Technical Field

[0001] This utility model relates to the field of brake structure technology, specifically to a brake guide sleeve anti-detachment structure. Background Technology

[0002] In order not to affect the installation of the brake component screw, the caliper housing and the overall mounting bracket are usually set as two parts. The guide sleeve needs to be fixed on the left and right sides of the caliper to connect the caliper body and the bracket. The guide sleeve can reduce the friction between the caliper body and the bracket.

[0003] During braking, the brake generates significant friction and heat, which causes deformation of the internal sliding parts, increasing friction and leading to rapid wear. Simultaneously, the guide sleeve gradually detaches from the guide sleeve hole of the caliper body. To address this, we propose a brake guide sleeve anti-detachment structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a brake guide sleeve anti-disengagement structure. By adding a lubrication device to reduce wear caused by friction, and by using anti-disengagement guide sleeves on both sides to prevent the caliper body from separating from the guide sleeve, the problem in the background art can be effectively solved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brake guide sleeve anti-disengagement structure, comprising a caliper housing, a sliding guide sleeve unit, and an anti-disengagement unit;

[0006] The clamp housing has a sliding guide sleeve unit and an anti-detachment unit installed on the inner side;

[0007] The sliding guide sleeve unit comprises a guide sleeve, an oil injection chamber, and a rubber sealing plug. The guide sleeve is fixedly connected to the inner side of the middle portion of the clamp body housing. Two oil injection chambers are formed at the left and right ends of the guide sleeve. These oil injection chambers are evenly connected to the inner sides of the guide sleeve. A rubber sealing plug is slidably connected to the upper inner side of each oil injection chamber. This allows lubricant to be injected into the oil injection chamber, reducing wear caused by friction during sliding. The rubber sealing plug seals the oil injection chamber.

[0008] Furthermore, the sliding guide sleeve unit also includes a sealing cap and a rubber sealing ring. The rubber sealing ring is fixedly connected to the upper inner side of the sealing cap, and a thread is formed on the lower inner side of the sealing cap. A thread is also formed on the upper end of the first guide sleeve, and the sealing cap is threadedly connected to the upper end of the first guide sleeve. The sealing cap and the rubber sealing ring ensure that the rubber sealing plug will not fall off due to vibration during use, causing lubricant to leak out.

[0009] Furthermore, the sliding guide sleeve unit also includes a limiting strip, a guide sleeve post, and a limiting groove. The limiting strip is fixedly connected to the inner side of the guide sleeve, front and back. Two limiting grooves are formed on the outer side of the guide sleeve post, front and back. The limiting grooves are slidably connected to the limiting strip, and the guide sleeve post is slidably connected to the inner side of the guide sleeve. The limiting strip and the limiting groove ensure that the guide sleeve post does not rotate when sliding inside the guide sleeve, thus achieving the purpose of limiting movement.

[0010] Furthermore, the anti-detachment unit includes a second guide sleeve and an anti-detachment limiting groove. Two second guide sleeves are fixedly connected to the left and right sides of the inner side of the clamp body housing, and two anti-detachment limiting grooves are formed on the left and right sides of the inner side of the second guide sleeve. The anti-detachment limiting grooves are progressively closer to the axis from top to bottom. The anti-detachment limiting grooves on the inner side of the second guide sleeve can prevent the second guide sleeve from falling off when sliding inside the second guide sleeve.

[0011] Furthermore, the anti-detachment unit also includes a second guide sleeve post, a mounting groove, a spring, and a sliding post. Two mounting grooves are correspondingly formed on the left and right sides of the upper outer side of the second guide sleeve post. The sliding space at the bottom inner side of the mounting groove is smaller than the outer sliding space. A circular baffle is fixedly connected to the top outer side of the sliding post. The outer side of the sliding post is slidably connected to the bottom inner side of the mounting groove. The circular baffle on the outer side of the sliding post is slidably connected to the inner side of the mounting groove. A spring is sleeved between the circular baffle and the mounting groove. The second guide sleeve post is slidably connected to the inner side of the second guide sleeve. The sliding post is slidably connected to the anti-detachment limiting groove. The spring pushes the sliding post to move, and the mounting groove limits the movement of the sliding post. During installation, the spring is compressed, and the post is installed through the top of the anti-detachment limiting groove. The spring pushes the sliding post to pop out inside the anti-detachment limiting groove, thus preventing the second guide sleeve post from slipping when moving inside the second guide sleeve.

[0012] Furthermore, the anti-detachment unit also includes a limiting groove two and a limiting strip two. The inner side of the guide sleeve two is fixedly connected to the limiting groove two in a corresponding manner. The front and rear sides of the guide sleeve two are fixedly connected to two limiting strips two in a corresponding manner. The limiting strips two are slidably connected to the limiting groove two.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This brake guide sleeve anti-disengagement structure has the following advantages:

[0014] 1. The brake guide sleeve anti-disengagement structure can inject lubricant into the inner side of the oil injection chamber, reducing wear caused by friction during sliding. The oil injection chamber is sealed by a rubber sealing plug, and the sealing cover and rubber sealing ring ensure that the rubber sealing plug will not fall off due to vibration during use, causing the lubricant to leak out.

[0015] 2. The anti-detachment structure of this brake guide sleeve uses a spring to push the sliding column to move. The movement of the sliding column is limited by the mounting groove. During installation, the spring is compressed and then installed through the top of the anti-detachment limiting groove. The spring pushes the sliding column to pop out inside the anti-detachment limiting groove, so that the second guide sleeve column will not slip when it moves inside the second guide sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front sectional structure of the present invention;

[0018] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0019] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0020] Figure 5 This is a schematic cross-sectional view of the right side of this utility model.

[0021] In the diagram: 1. Clamp housing; 3. Sliding guide sleeve unit; 31. Guide sleeve I; 32. Limiting strip I; 33. Guide sleeve post I; 34. Limiting groove I; 35. Sealing cover; 36. Rubber sealing ring; 37. Oil injection chamber; 38. Rubber sealing plug; 4. Anti-detachment unit; 41. Guide sleeve II; 42. Limiting groove II; 43. Anti-detachment limiting groove; 44. Guide sleeve post II; 45. Mounting groove; 46. Spring; 47. Sliding post; 48. Limiting strip II. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This embodiment provides a technical solution: a brake guide sleeve anti-disengagement structure, including a caliper housing 1, a sliding guide sleeve unit 3, and an anti-disengagement unit 4;

[0024] The clamp housing 1 has a sliding guide sleeve unit 3 and an anti-detachment unit 4 installed on its inner side;

[0025] Sliding guide sleeve unit 3: includes guide sleeve 31, oil injection chamber 37, and rubber sealing plug 38. Guide sleeve 31 is fixedly connected to the inner side of the middle part of the clamp body housing 1. Two oil injection chambers 37 are opened at the left and right ends of guide sleeve 31. The oil injection chambers 37 are evenly connected to the inner side of guide sleeve 31. The rubber sealing plug 38 is slidably connected to the upper inner side of the oil injection chamber 37. Lubricant can be injected into the inner side of the oil injection chamber 37 to reduce wear caused by friction during sliding. The rubber sealing plug 38 seals the oil injection chamber 37.

[0026] The sliding guide sleeve unit 3 also includes a sealing cover 35 and a rubber sealing ring 36. The rubber sealing ring 36 is fixedly connected to the upper inner side of the sealing cover 35, and the lower inner side of the sealing cover 35 is threaded. The upper end of the guide sleeve 31 is also threaded, and the sealing cover 35 is threaded to the upper end of the guide sleeve 31. The sealing cover 35 and the rubber sealing ring 36 ensure that the rubber sealing plug 38 will not fall off due to vibration during use, causing lubricant to leak out.

[0027] The sliding guide sleeve unit 3 also includes a limiting strip 32, a guide sleeve post 33, and a limiting groove 34. The limiting strip 32 is fixedly connected to the inner side of the guide sleeve 31, and two limiting grooves 34 are opened on the outer side of the guide sleeve post 33. The limiting grooves 34 are slidably connected to the limiting strip 32, and the guide sleeve post 33 is slidably connected to the inner side of the guide sleeve 31. The limiting strip 32 and the limiting grooves 34 ensure that the guide sleeve post 33 will not rotate when sliding inside the guide sleeve 31, thereby achieving the purpose of limiting.

[0028] The anti-detachment unit 4 includes guide sleeve 2 41 and anti-detachment limiting groove 43. Two guide sleeves 2 41 are fixedly connected to the left and right sides of the inner side of the clamp body housing 1, and two anti-detachment limiting grooves 43 are opened on the left and right sides of the inner side of the guide sleeve 2 41, with the distance between the anti-detachment limiting grooves 43 and the axis decreasing from top to bottom. The anti-detachment limiting grooves 43 on the inner side of the guide sleeve 2 41 can prevent the guide sleeve post 2 44 from falling off when sliding inside the guide sleeve 2 41.

[0029] The anti-detachment unit 4 also includes a guide sleeve post 2 44, a mounting groove 45, a spring 46, and a sliding post 47. Two mounting grooves 45 are opened on the left and right sides of the upper outer side of the guide sleeve post 2 44. The sliding space at the bottom of the inner side of the mounting groove 45 is smaller than the outer sliding space. A circular baffle is fixedly connected to the top of the outer side of the sliding post 47. The outer side of the sliding post 47 is slidably connected to the bottom of the inner side of the mounting groove 45. The circular baffle on the outer side of the sliding post 47 is slidably connected to the inner side of the mounting groove 45. A spring 46 is sleeved between the circular baffle of the sliding post 47 and the mounting groove 45. The guide sleeve post 2 44 is slidably connected to the inner side of the guide sleeve 2 41. The sliding post 47 is slidably connected to the anti-detachment limiting groove 43. The sliding column 47 is moved by the spring 46, and the movement of the sliding column 47 is limited by the mounting groove 45. During installation, the spring 46 is compressed and then installed through the top of the anti-detachment limiting groove 43. The sliding column 47 is pushed out of the anti-detachment limiting groove 43 by the spring 46, so that the guide sleeve column 44 will not slip when it moves inside the guide sleeve 41.

[0030] The anti-detachment unit 4 also includes a limiting groove 42 and a limiting strip 48. The inner side of the guide sleeve 41 is fixedly connected to the limiting groove 42 at the front and back. The guide sleeve post 44 is fixedly connected to two limiting strips 48 at the front and back. The limiting strips 48 are slidably connected to the limiting groove 42.

[0031] The working principle of the brake guide sleeve anti-disengagement structure provided by this utility model is as follows: Lubricant is injected into the inner side of the oil injection chamber 37 to reduce wear caused by friction during sliding. The oil injection chamber 37 is sealed by a rubber sealing plug 38. The sealing cap 35 and the rubber sealing ring 36 ensure that the rubber sealing plug 38 will not fall off due to vibration during use, causing lubricant to leak out. The limiting strip 32 and the limiting groove 34 ensure that the guide sleeve post 33 will not rotate when sliding inside the guide sleeve sleeve 31, thus achieving the purpose of limiting movement. The anti-disengagement limiting groove 43 on the inner side of the guide sleeve sleeve 41 prevents the guide sleeve post 44 from falling off when sliding inside the guide sleeve sleeve 41. The sliding column 47 is moved by the spring 46, and the movement of the sliding column 47 is limited by the mounting groove 45. During installation, the spring 46 is compressed and then installed through the top of the anti-detachment limiting groove 43. The spring 46 pushes the sliding column 47 out of the anti-detachment limiting groove 43, so that the guide sleeve column 44 will not slip when moving inside the guide sleeve 41. The limiting groove 42 and the limiting strip 48 limit the sliding of the guide sleeve column 44 inside the guide sleeve 41 and prevent the guide sleeve column 44 from rotating during sliding.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A brake guide sleeve anti-disengagement structure, characterized in that: Including the pincers body shell (1), sliding guide sleeve unit (3) and prevent the unit (4) to fall off; Pincers body shell (1): The inner side is provided with sliding guide sleeve unit (3) and prevent the unit (4) to fall off; Sliding guide sleeve unit (3): Contain guide sleeve one (31), oil injection cavity (37) and rubber sealing plug (38), the middle part inner side of the pincers body shell (1) is fixedly connected with guide sleeve one (31), the left and right two ends of guide sleeve one (31) are provided with two oil injection cavities (37), the oil injection cavity (37) is communicated with the left and right of guide sleeve one (31) inside, the inner side upper end of oil injection cavity (37) is slidably connected with rubber sealing plug (38).

2. The brake guide sleeve anti-disengagement structure according to claim 1, characterized in that: The sliding guide sleeve unit (3) further comprises a sealing cover (35) and a rubber sealing ring (36), the inner side upper end of the sealing cover (35) is fixedly connected with the rubber sealing ring (36), the inner side lower end of the sealing cover (35) is provided with a thread, the upper end of the guide sleeve one (31) is provided with a thread, and the sealing cover (35) is threadedly connected with the upper end of the guide sleeve one (31).

3. The brake guide sleeve anti-disengagement structure according to claim 2, characterized in that: The sliding guide sleeve unit (3) further comprises a limiting strip one (32), a guide sleeve column one (33) and a limiting groove one (34), the inner side of the guide sleeve one (31) is fixedly connected with the limiting strip one (32) correspondingly, the outer side of the guide sleeve column one (33) is provided with two limiting grooves one (34) correspondingly, the limiting groove one (34) is slidably connected with the limiting strip one (32), and the guide sleeve column one (33) is slidably connected with the inner side of the guide sleeve one (31).

4. The brake guide sleeve anti-disengagement structure of claim 1, wherein: The anti-falling-off unit (4) comprises a guide sleeve two (41) and an anti-falling-off limiting groove (43), and the inner sides of the pincers body shell (1) are fixedly connected with two guide sleeve two (41) correspondingly, the inner sides of the guide sleeve two (41) are provided with two anti-falling-off limiting grooves (43) correspondingly, and the anti-falling-off limiting grooves (43) are closer and closer to the axis from top to bottom.

5. The brake guide sleeve anti-disengagement structure according to claim 4, characterized in that: The anti-falling-off unit (4) further comprises a guide sleeve column two (44), a mounting groove (45), a spring (46) and a sliding column (47), the outer side of the upper end of the guide sleeve column two (44) is provided with two mounting grooves (45) correspondingly, the sliding space of the inner side bottom of the mounting groove (45) is smaller than the outer sliding space, the outer side top of the sliding column (47) is fixedly connected with a circular baffle, the outer side of the sliding column (47) is slidably connected with the inner side bottom of the mounting groove (45), the outer side circular baffle of the sliding column (47) is slidably connected with the inner side of the mounting groove (45), the spring (46) is sleeved between the circular baffle of the sliding column (47) and the mounting groove (45), the guide sleeve column two (44) is slidably connected with the inner side of the guide sleeve two (41), and the sliding column (47) is slidably connected with the anti-falling-off limiting groove (43).

6. The brake guide sleeve anti-disengagement structure according to claim 5, characterized in that: The anti-falling-off unit (4) further comprises a limiting groove two (42) and a limiting strip two (48), the inner side of the guide sleeve two (41) is fixedly connected with the limiting groove two (42) correspondingly, the guide sleeve column two (44) is fixedly connected with two limiting strip two (48) correspondingly, and the limiting strip two (48) is slidably connected with the limiting groove two (42).