Dustproof ring structure capable of reducing dust pollution of automobile drum brake

By installing a dustproof plate and a multi-layer filter at the brake base plate, the problem of dust pollution from automotive drum brakes has been solved, achieving effective dust filtration, reducing environmental pollution, and improving air quality.

CN224201003UActive Publication Date: 2026-05-05ANJI YATAI ZHIDONG SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANJI YATAI ZHIDONG SYST CO LTD
Filing Date
2026-03-25
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing automotive drum brakes lack a dust collection structure, causing the dust generated during braking to be emitted into the air as the vehicle moves, resulting in dust pollution and affecting air quality.

Method used

A dustproof plate and filter are installed on the base plate of the brake. The filter is positioned by the protrusions and hooks of the dustproof plate and adopts a multi-layer filter structure made of high temperature resistant material. The filter is arranged with pores from large to small to ensure that dust is effectively adsorbed.

Benefits of technology

It effectively reduces dust emissions from brakes, improves air quality, has a simple structure, low cost, is easy to disassemble and assemble, and the filter can be cleaned or replaced regularly.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a dustproof ring structure capable of reducing dust pollution of an automobile drum brake. The dustproof ring structure is installed at the position of a bottom plate of the brake and comprises a filter and a dustproof plate, the dustproof plate is arranged outside the bottom plate in a sleeving mode and connected with the bottom plate, and the filter is arranged between the dustproof plate and the bottom plate and located and installed through a protruding part and a hook head of the dustproof plate. The automobile drum brake is simple in structure, low in cost, convenient to disassemble and assemble and high in practicability and durability, dust and environmental pollution caused by braking of the automobile drum brake can be effectively reduced, and the air quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive drum brakes, specifically to a dustproof ring structure that can reduce dust pollution from automotive drum brakes. Background Technology

[0002] In today's rapidly developing technological society, people are increasingly aware of the importance of environmental protection. However, the braking of automobile drum brakes inevitably produces braking dust. Existing drum brakes lack dust collection structures, and the dust generated during braking is emitted into the air as the vehicle moves, causing dust pollution and affecting air quality. This issue is receiving increasing attention. Utility Model Content

[0003] In order to improve and solve the problems existing in the background technology, this utility model provides a dustproof ring structure that can reduce dust pollution from automobile drum brakes, which is suitable for improving dust pollution generated by automobile drum brakes and reducing environmental pollution.

[0004] The technical solution adopted in this utility model is as follows:

[0005] This utility model is installed on the base plate of the brake and includes a filter and a dustproof plate. The dustproof plate is fitted over the outside of the base plate and connected to the base plate. A filter is provided between the dustproof plate and the base plate. The filter is positioned and installed through the protrusions and hooks of the dustproof plate.

[0006] Both the dustproof plate and the base plate are provided with annular bending portions that are perpendicular to the plate itself and bend toward the brake housing, and the annular bending portions serve as the outer edges;

[0007] An annular filter is provided between the outer edge of the dustproof plate and the outer edge of the base plate. The filter is used to filter the area between the outer edges of the dustproof plate and the base plate.

[0008] The outer edge of the dustproof plate is provided with a protruding part that protrudes towards the outer edge of the base plate. The protruding part is embedded in the filter to position the filter.

[0009] The outer edge of the dustproof plate is provided with a part that bends toward the outer edge of the base plate as a hook. The hook is used to restrict the filter from moving out between the dustproof plate and the base plate.

[0010] The dustproof plate is fixed to the base plate by protruding weld points.

[0011] Several through holes are provided between the base plate itself and its annular bend as ventilation holes, which are used to connect the space between the dustproof plate and the base plate with the space inside the base plate itself.

[0012] The filter includes several layers of filter screens, each of which has several filter holes. The filter holes on different filter screens are of different sizes, and the filter screens are arranged from the largest to the smallest filter holes along the bottom plate itself towards the hook.

[0013] The filter is made of high-temperature resistant material.

[0014] The beneficial effects of this utility model are:

[0015] This utility model has a simple structure, low cost, is easy to disassemble and assemble, and is highly practical and durable. Functionally, it effectively reduces dust and environmental pollution caused by automobile drum brakes, thus improving air quality. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the present invention installed on a drum brake.

[0018] Figure 3 This is a partial, rotated enlarged view of the present invention installed on a drum brake.

[0019] Figure 4 This is a schematic diagram of the internal structure of the dustproof ring of this utility model.

[0020] In the diagram: 1. Base plate, 2. Filter, 3. Hook, 4. Raised structure, 5. Dustproof plate, 6. Raised weld point, 7. Vent hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] The dust seal structure is installed on the drum brake in the following position: Figure 2 and Figure 3 As shown, the dustproof ring structure is installed on the base plate 1 of the brake, including a filter 2 and a dustproof plate 5. The dustproof plate 5 is fitted over the base plate 1 and connected to the base plate 1. The edge of the dustproof plate 5 wraps around the outside of the base plate 1 to ensure that most of the brake dust will flow to the dustproof plate 5 by airflow. A filter 2 is provided between the dustproof plate 5 and the base plate 1. The filter 2 is positioned and installed through the protrusion 4 and hook 3 of the dustproof plate 5. It can be installed, removed and replaced by compressing the filter 2.

[0023] When the vehicle moves forward or backward, braking occurs, and the friction between the friction pads and brake drum generates braking force, while simultaneously causing wear. The dust generated by this wear is carried by the airflow of the vehicle through filter 2, where it is adsorbed by the filter 2. This process significantly reduces the amount of dust directly emitted into the air, thus minimizing air pollution.

[0024] Specifically, both the dustproof plate 5 and the base plate 1 are provided with annular bends that are perpendicular to the plate itself and bend toward the brake housing, with the annular bends serving as the outer edges; annular filters 2 are provided between the outer edges of the dustproof plate 5 and the outer edges of the base plate 1, and the filters 2 are used to seal and filter between the outer edges of the dustproof plate 5 and the outer edges of the base plate 1.

[0025] More specifically, the outer edge of the dustproof plate 5 is provided with a protruding part 4 that protrudes towards the outer edge of the base plate 1. The protruding part 4 is embedded in the filter 2 to axially position the filter 2, so that the filter 2 and the protruding part 4 of the dustproof plate 5 are fitted together.

[0026] The filter 2 is fixed by the protruding part 4 of the dustproof plate 5 and the base plate 1. When the brake is applied, the dust generated will pass through the filter 2 with the airflow and then fly into the air. At this time, the dust will be adsorbed by the filter 2, reducing the amount of dust flying into the air.

[0027] Specifically, the outer edge of the dustproof plate 5 is provided with a part that bends toward the outer edge of the base plate 1 as a hook 3. The hook 3 is used to restrict the filter 2 from moving out between the dustproof plate 5 and the base plate 1.

[0028] In practice, the dustproof plate 5 is fixed to the base plate 1 by the projection weld point 6 formed by projection welding.

[0029] Specifically, the base plate 1 itself and its annular bend can be provided with several through holes as ventilation holes 7 according to the flow requirements. The ventilation holes 7 are used to connect the space between the dustproof plate 5 and the base plate 1 with the space inside the base plate 1 itself, so as to ensure that the air carrying dust can pass through the filter 2 more fully and the dust can be absorbed by the filter 2 more quickly.

[0030] Specifically, filter 2 is made of high-temperature resistant material and consists of several layers of filter screens, each with a number of filter holes of different sizes. The filter screens are arranged from largest to smallest along the base plate 1 towards the hook head 3. The internal structure of the dustproof ring is as follows: Figure 1 and Figure 4As shown, filter 2 has a layered structure, with different layers filtering particles of different sizes. The filter layer with the smallest pores only allows water to pass through, ensuring that brake dust is fully adsorbed by the filters inside the dustproof plate. Adsorption efficiency can be maintained by regularly cleaning or replacing the filters, and the replaced filters can be recycled.

Claims

1. A dustproof ring structure for reducing dust pollution from automotive drum brakes, installed on the base plate (1) of the brake, characterized in that: Includes a filter (2) and a dustproof plate (5). The dustproof plate (5) is fitted over the bottom plate (1) and connected to the bottom plate (1). A filter (2) is provided between the dustproof plate (5) and the bottom plate (1). The filter (2) is positioned and installed through the protrusion (4) and hook (3) of the dustproof plate (5).

2. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 1, characterized in that: Both the dustproof plate (5) and the bottom plate (1) are provided with an annular bending part that is perpendicular to the plate itself and bends toward the brake housing, and the annular bending part serves as the outer edge; An annular filter (2) is provided between the outer edge of the dustproof plate (5) and the outer edge of the bottom plate (1). The filter (2) is used to filter the area between the outer edge of the dustproof plate (5) and the outer edge of the bottom plate (1).

3. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 2, characterized in that: The dustproof plate (5) has a protruding part (4) on its outer edge that protrudes toward the outer edge of the base plate (1). The protruding part (4) is embedded in the filter (2) to position the filter (2).

4. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 2, characterized in that: The outer edge of the dustproof plate (5) is provided with a part that bends toward the outer edge of the bottom plate (1) as a hook (3). The hook (3) is used to restrict the filter (2) from moving out between the dustproof plate (5) and the bottom plate (1).

5. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 1, characterized in that: The dustproof plate (5) is fixed to the base plate (1) by the protrusion welding point (6).

6. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 1, characterized in that: The base plate (1) has several through holes as ventilation holes (7) between itself and its annular bend. The ventilation holes (7) are used to connect the space between the dustproof plate (5) and the base plate (1) with the space inside the base plate (1).

7. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 1, characterized in that: The filter (2) includes several layers of filter screens, each of which has several filter holes. The filter holes on different filter screens are of different sizes. The filter screens are arranged from the bottom plate (1) to the hook (3) according to the size of the filter holes.

8. The dustproof ring structure for reducing dust pollution from automotive drum brakes according to claim 1, characterized in that: The filter (2) is made of high temperature resistant material.