Brake spring anti-corrosion device

By designing sealing components and anti-rust oil injection components on the brake spring, the problem of easy corrosion of the brake spring is solved, thus achieving a long service life of the spring and stable operation of the brake.

CN223839607UActive Publication Date: 2026-01-27NANJING SUNTRUST MASCH CO LTD
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Patent Information

Application Number
CN202520197815.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-27
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Brake springs are susceptible to oxidation and corrosion due to environmental factors, which affects their service life and brake performance.

Method used

A corrosion protection device including a sealing component and a rust-preventive oil injection component was designed. The sealing component wraps a spring with a mounting ring and an elastic sleeve, and the rust-preventive oil injection component realizes automated pumping of rust-preventive oil through a storage section and a drive section.

Benefits of technology

It effectively isolates the spring from air, extends its service life, enhances corrosion resistance, and ensures the stability and safety of the brake.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223839607U_ABST
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Abstract

The utility model discloses a brake spring anti-corrosion device, which relates to the technical field of brakes and comprises a brake body and a brake spring body arranged on the outer wall of a shaft body of the brake body, and further comprises a sealing component and a sealing component, the spring sleeve is arranged on the outer wall of the shaft body in a sleeving manner, wraps the brake spring body and is used for avoiding accelerated oxidation caused by contact between the spring and air; the anti-rust oil injection assembly comprises a storage part used for storing anti-rust oil and a driving part used for pumping the anti-rust oil, the storage part is connected with the vehicle body, and the driving part is arranged in the storage part. The sealing assembly and the anti-rust oil injection assembly are arranged to prevent the spring from being corroded, the stability and reliability of the brake in the long-term operation process are guaranteed, the brake failure risk caused by spring corrosion is reduced, and therefore the overall safety of a vehicle is improved.
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Description

Technical Field

[0001] This utility model relates to the field of brake technology, specifically to a brake spring anti-corrosion device. Background Technology

[0002] Brake springs are an important component of disc brakes or drum brakes.

[0003] Traditional brake springs, being directly exposed to air, are susceptible to environmental factors, particularly humidity and oxygen, leading to accelerated oxidation and corrosion on the spring surface. This not only shortens the spring's lifespan but can also affect the overall performance and safety of the brake. Therefore, effectively preventing brake spring corrosion, extending its service life, and ensuring stable brake operation have become pressing technical challenges. Utility Model Content

[0004] This invention provides a brake spring anti-corrosion device, which has the advantages of sealing and corrosion prevention and high-efficiency corrosion prevention, so as to solve the problem that the existing technology is directly exposed to the air and is easily affected by environmental factors.

[0005] To achieve efficient corrosion prevention, this utility model provides the following technical solution: a brake spring anti-corrosion device, comprising a brake body and a brake spring body disposed on the outer wall of the shaft of the brake body, further comprising: a sealing assembly, which is sleeved on the outer wall of the shaft of the brake body and wraps the brake spring body to prevent the brake spring body from contacting air and thus accelerating oxidation; and a rust-preventive oil injection assembly, which includes a storage part for storing rust-preventive oil and a drive part for pumping in rust-preventive oil, wherein the storage part is connected to the vehicle body and the drive part is disposed within the storage part.

[0006] Preferably, the sealing assembly includes a mounting ring and an elastic sleeve arranged symmetrically at the front and rear. The mounting ring is slidably connected to the outer wall of the shaft, and the two ends of the elastic sleeve are fixedly connected to the symmetrically arranged mounting ring and wrap around the brake spring body.

[0007] Preferably, the storage unit includes a tank, an inlet pipe, and a pipe cover. The tank is connected to the vehicle body. The inlet pipe is disposed on the upper end face of the tank. The pipe cover is threadedly connected to the inlet pipe. The bottom of the tank is provided with an outlet pipe. The outlet pipe passes through the mounting ring and extends into the inner wall of the elastic sleeve. The drive unit is disposed in the tank.

[0008] Preferably, the drive unit includes a mounting cylinder, a movable shaft, a reset component, and a push plate. The mounting cylinder is mounted on the upper end face of the tank body and extends through the tank body into the tank body. The push plate is movably mounted in the tank body. The upper end face of the push plate is provided with a through hole that fits with the liquid inlet pipe. The liquid inlet pipe extends through the through hole to the bottom of the tank body. The movable shaft is mounted on the upper end face of the push plate and extends into the mounting cylinder. The reset component is disposed in the mounting cylinder and connected to the movable shaft for resetting the movable shaft. A conduit communicating with the brake hydraulic system is installed on the upper end face of the tank body. The conduit extends through the tank body into the tank body and is located at the upper end of the push plate.

[0009] Preferably, the reset component includes a reset spring and a push handle. The push handle is mounted on the upper end face of the movable shaft, and the reset spring is disposed on the outer wall of the movable shaft, with its two ends fixedly connected to the mounting cylinder and the push handle, respectively.

[0010] Preferably, the outer wall of the push plate is provided with a sealing ring, and the sealing ring is in contact with the inner wall of the tank.

[0011] Preferably, mounting ears are symmetrically installed on the outer wall of the tank.

[0012] Compared with the prior art, this utility model provides a brake spring anti-corrosion device, which has the following beneficial effects:

[0013] 1. This brake spring anti-corrosion device effectively isolates the spring from direct contact with air by installing a sealing component on the outer wall of the shaft and wrapping the spring, thereby greatly slowing down the oxidation rate of the spring and significantly extending its service life. The rust-preventive oil injection component allows the spring to be further wetted by the rust-preventive oil in a sealed environment, enhancing the anti-corrosion effect. The rust-preventive oil can not only fill the tiny pores on the spring surface to form a protective layer, but also form an oil film on the spring surface to further isolate air and moisture and improve anti-corrosion performance.

[0014] 2. The integrated design of the storage and drive units of the rust-preventive oil injection assembly, connected to the vehicle body, makes the entire device compact, facilitating installation and disassembly and simplifying maintenance. The drive unit further automates and streamlines the rust-preventive oil pumping process, improving maintenance efficiency.

[0015] 3. By effectively preventing spring corrosion, this invention ensures the stability and reliability of the brake during long-term operation, reduces the risk of brake failure caused by spring corrosion, and thus improves the overall safety of the vehicle. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the rust-preventive oil injection component of this utility model;

[0019] Figure 4 This is a cross-sectional view of the sealing assembly of this utility model;

[0020] Figure 5 This utility model provides Figure 2 Enlarged schematic diagram of part a in the middle.

[0021] In the diagram: 1. Brake body; 2. Brake spring body; 3. Sealing assembly; 31. Mounting ring; 32. Elastic sleeve; 4. Rust-preventive oil injection assembly; 41. Storage section; 411. Tank body; 412. Inlet pipe; 413. Pipe cap; 414. Outlet pipe; 415. Mounting lug; 42. Drive unit; 421. Mounting cylinder; 422. Movable shaft; 423. Reset component; 424. Push plate; 425. Through hole; 426. Guide tube; 427. Reset spring; 428. Push handle; 429. Sealing ring. 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. Example 1

[0023] Please see Figures 1-5 This utility model discloses a brake spring anti-corrosion device, including a brake body 1 and a brake spring body 2 disposed on the outer wall of the shaft of the brake body 1. It also includes: a sealing assembly 3, which is sleeved on the outer wall of the shaft of the brake body 1 and wraps the brake spring body 2 to prevent the brake spring body 2 from contacting air and thus accelerating oxidation; and a rust-preventive oil injection assembly 4, which includes a storage part 41 for storing rust-preventive oil and a driving part 42 for pumping in rust-preventive oil. The storage part 41 is connected to the vehicle body, and the driving part 42 is disposed in the storage part 41.

[0024] The above design effectively isolates the spring from direct contact with air by sleeved sealing component 3 on the outer wall of the shaft, thereby greatly slowing down the oxidation rate of the spring and significantly extending its service life. The rust-preventive oil injection component 4 allows the spring to be further wetted by rust-preventive oil in a sealed environment, enhancing the anti-corrosion effect. The rust-preventive oil can not only fill the tiny pores on the spring surface to form a protective layer, but also form an oil film on the spring surface to further isolate air and moisture and improve anti-corrosion performance.

[0025] Please see Figure 1 , Figure 2 , Figure 4 The sealing assembly 3 includes a mounting ring 31 and an elastic sleeve 32 symmetrically arranged front and rear. The mounting ring 31 is slidably connected to the outer wall of the shaft. The two ends of the elastic sleeve 32 are fixedly connected to the symmetrically arranged mounting ring 31 and enclose the brake spring body 2. By setting the mounting ring 31 and the elastic sleeve 32, the brake spring body 2 can be sealed, so that the brake spring body 2 is in a sealed environment, thereby greatly slowing down the oxidation rate of the spring and significantly extending the service life of the spring. The storage part 41 includes a tank 411, an inlet pipe 412 and a pipe cover 413. The tank body 411 is connected to the vehicle body. The inlet pipe 412 is located on the upper end face of the tank body 411. The pipe cover 413 is connected to the inlet pipe 412 by a thread. The bottom of the tank body 411 is provided with an outlet pipe 414. The outlet pipe 414 passes through the mounting ring 31 and extends into the inner wall of the elastic sleeve 32. The drive unit 42 is located inside the tank body 411. By setting the tank body 411, the inlet pipe 412, the pipe cover 413 and the outlet pipe 414, rust-preventive oil can be stored and the rust-preventive oil stored in the tank body 411 can be transported into the rubber sleeve to wet the brake spring body 2.

[0026] Please see Figure 1 , Figure 2 , Figure 3 Figure 5The drive unit 42 includes a mounting cylinder 421, a movable shaft 422, a reset component 423, and a push plate 424. The mounting cylinder 421 is mounted on the upper end face of the tank body 411 and extends through the tank body 411 into the tank body 411. The push plate 424 is movably mounted inside the tank body 411. The upper end face of the push plate 424 is provided with a through hole 425 that fits with the liquid inlet pipe 412. The liquid inlet pipe 412 extends into the tank body 411 through the through hole 425. At the bottom of the tank body 411, the movable shaft 422 is mounted on the upper end face of the push plate 424 and extends into the mounting cylinder 421. The reset member 423 is disposed in the mounting cylinder 421 and connected to the movable shaft 422 for resetting the movable shaft 422. A conduit 426 communicating with the brake hydraulic system is installed on the upper end face of the tank body 411. The conduit 426 penetrates the tank body 411, extends into the tank body 411, and is located at... The upper end of the push plate 424 is equipped with an mounting cylinder 421, a movable shaft 422, a reset component 423, a push plate 424, and a conduit 426. Hydraulic oil is pumped into the brake hydraulic system to drive the push plate 424 downwards, thereby pushing the rust-preventive oil into the outlet pipe 414. This allows the brake spring to pass through the rust-preventive oil. The reset component 423 resets the push plate 424 and pushes the hydraulic oil back into the brake hydraulic system. The reset component 423 includes a reset spring 427 and a push handle 428. The push handle 428 is mounted on the upper end face of the movable shaft 422. The reset spring 427 is located on the outer wall of the movable shaft 422, and its two ends are fixedly connected to the mounting cylinder 421 and the push handle 428, respectively. By setting the reset spring 427 and the push handle 428, the reset spring 427 can push the push handle 428 upwards, thereby resetting the push plate 424, which was pushed downwards by the hydraulic oil. Example 2

[0027] Based on the above embodiment one, please refer to Figure 1 , Figure 3 , Figure 5 The outer wall of the push plate 424 is provided with a sealing ring 429, which fits against the inner wall of the tank 411. By setting the sealing ring 429, the sealing performance between the push plate 424 and the tank 411 can be improved, preventing the hydraulic oil from mixing with the rust-preventive oil. The outer wall of the tank 411 is symmetrically equipped with mounting ears 415, which facilitates the connection between the tank 411 and the vehicle body.

[0028] Working principle and usage process of this utility model:

[0029] Inject rust-preventive oil into the tank 411 of component 4. Connect the conduit 426 at the upper end of the tank 411 to the brake hydraulic system to ensure that hydraulic oil can smoothly enter the tank 411 to drive the push plate 424. Install the pipe cover 413 and the inlet pipe 412: connect the pipe cover 413 to the inlet pipe 412 with threads to ensure that the tank 411 is sealed. At this time, the inlet pipe 412 is only for backup and is used for subsequent addition of rust-preventive oil. Open the pipe cover 413 and inject an appropriate amount of rust-preventive oil into the tank 411 through the inlet pipe 412. Then, close and tighten the pipe cap 413, start the brake hydraulic system, pump in hydraulic oil through the hydraulic system, the hydraulic oil will push the push plate 424 downward, thereby pushing the rust-preventive oil in the tank 411 into the outlet pipe 414 and delivering it into the elastic sleeve 32, so that the brake spring body 2 is immersed in the rust-preventive oil. When the rust-preventive oil injection is completed, the hydraulic system stops working. At this time, the reset spring 427 will push the push handle 428 and the push plate 424 upward to reset, and at the same time push the hydraulic oil back into the brake hydraulic system.

Claims

1. A brake spring anti-corrosion device, comprising a brake body (1) and a brake spring body (2) disposed on the outer wall of the shaft body of the brake body (1), characterized in that, Also includes: A sealing assembly (3) is fitted onto the outer wall of the shaft of the brake body (1) and wraps around the brake spring body (2) to prevent the brake spring body (2) from contacting air and causing accelerated oxidation. The sealing assembly (3) includes a mounting ring (31) and an elastic sleeve (32) symmetrically arranged front and rear. The mounting ring (31) is slidably connected to the outer wall of the shaft. The two ends of the elastic sleeve (32) are fixedly connected to the symmetrically arranged mounting ring (31) and wrap the brake spring body (2). The rust-preventive oil injection assembly (4) includes a storage section (41) for storing rust-preventive oil and a drive section (42) for pumping in rust-preventive oil. The storage section (41) is connected to the vehicle body, and the drive section (42) is disposed within the storage section (41).

2. The brake spring anti-corrosion device according to claim 1, characterized in that: The storage unit (41) includes a tank (411), an inlet pipe (412), and a pipe cap (413). The tank (411) is connected to the vehicle body. The inlet pipe (412) is located on the upper end face of the tank (411). The pipe cap (413) is connected to the inlet pipe (412) by a thread. The bottom of the tank (411) is provided with an outlet pipe (414). The outlet pipe (414) passes through the mounting ring (31) and extends into the inner wall of the elastic sleeve (32). The drive unit (42) is located inside the tank (411).

3. The brake spring anti-corrosion device according to claim 2, characterized in that: The drive unit (42) includes a mounting cylinder (421), a movable shaft (422), a reset component (423), and a push plate (424). The mounting cylinder (421) is mounted on the upper end face of the tank (411) and extends through the tank (411) into the tank (411). The push plate (424) is movably mounted in the tank (411). The upper end face of the push plate (424) is provided with a through hole (425) that fits with the liquid inlet pipe (412). The liquid inlet pipe (412) extends into the tank through the through hole (425). At the bottom of (411), the movable shaft (422) is installed on the upper end face of the push plate (424) and extends into the mounting cylinder (421). The reset member (423) is disposed in the mounting cylinder (421) and connected to the movable shaft (422) for resetting the movable shaft (422). The upper end face of the tank (411) is equipped with a conduit (426) that communicates with the brake hydraulic system. The conduit (426) penetrates the tank (411) and extends into the tank (411), and is located at the upper end of the push plate (424).

4. The brake spring anti-corrosion device according to claim 3, characterized in that: The reset component (423) includes a reset spring (427) and a push handle (428). The push handle (428) is installed on the upper end face of the movable shaft (422). The reset spring (427) is disposed on the outer wall of the movable shaft (422), and its two ends are fixedly connected to the mounting cylinder (421) and the push handle (428) respectively.

5. The brake spring anti-corrosion device according to claim 3, characterized in that: The outer wall of the push plate (424) is provided with a sealing ring (429), and the sealing ring (429) is in contact with the inner wall of the tank (411).

6. The brake spring anti-corrosion device according to claim 2, characterized in that: The outer wall of the tank (411) is symmetrically equipped with mounting ears (415).