Low pressure high torque parking brake

By connecting the brake pads and brake drum through a differential structure and hydraulic push rod assembly, the problems of uneven wear and complex adjustment of brake shoes in existing drum brakes are solved, and uniform wear and stable braking effect of low-pressure, high-torque parking brake are achieved.

CN122407700APending Publication Date: 2026-07-17PINGXIANG FANGYUAN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PINGXIANG FANGYUAN IND CO LTD
Filing Date
2026-06-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing drum brakes require significant force to apply for both service and parking braking. Uneven wear of the brake pads leads to insufficient braking force and delayed response, resulting in longer braking distances. Furthermore, the adjustment mechanism becomes complex and difficult to reset after the brake pads wear out.

Method used

It adopts a low-pressure, high-torque parking brake, which connects the brake pads and brake drum through a differential structure and a hydraulic push rod assembly to achieve even brake pad wear. The adjustment component automatically compensates for the gap between the brake pads and brake drum, simplifying the structure and improving braking force.

Benefits of technology

It achieves uniform brake pad wear, improves braking force and response time, simplifies brake pad adjustment, keeps braking distance and response time constant, and enhances the effectiveness and stability of braking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of brake, and particularly relates to a low-pressure large-torque parking brake, which comprises a second back plate, a first driving assembly, a second driving assembly, a friction assembly and an adjusting assembly. The second back plate is used for providing a mounting position. The first driving assembly and the second driving assembly are respectively used for driving the service brake and the parking brake. The friction assembly is used for braking the vehicle. The adjusting assembly is used for adjusting the wear compensation of the gap between the brake pad and the brake drum. In the application, the two brake shoes of the friction assembly are connected with the first driving assembly and the second driving assembly through a differential structure, so that the two brake shoes can drive the brake pad to contact the brake drum under the driving of the first driving assembly or the second driving assembly with the same pressure, and the uneven wear of the two brake pads is avoided.
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