A drum brake base plate and a drum brake assembly

CN224453464UActive Publication Date: 2026-07-03LIUZHOU WULING AUTOMOBILE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIUZHOU WULING AUTOMOBILE IND CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing drum-type EPB brake assembly presents challenges in terms of complex operation and the risk of welding deformation when installing the EPB actuator, which affects the flatness and lifespan of the brake base plate.

Method used

A drum brake base plate is designed, which adopts a snap-fit ​​structure of connectors and fixing parts. The EPB actuator is stably installed through threaded connection, avoiding welding. The assembly process is optimized by combining variable cross-section fixing groove and guide area to enhance structural stability.

Benefits of technology

This enables convenient installation of the EPB actuator, reduces the risk of welding deformation, improves the structural stability and service life of the brake base plate, and enhances assembly efficiency and connection reliability.

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Abstract

This application discloses a drum brake base plate and a drum brake assembly. The drum brake base plate includes: a base plate body with at least two connecting members spaced apart, each connecting member having a bent structure; a connecting hole located between the two connecting members with threads on its inner wall; and a mounting bracket for mounting an EPB actuator. The mounting bracket has fixing members and fixing holes, with each fixing member corresponding to a connecting member. The fixing member engages with the bent structure of the connecting member and abuts against at least two inner surfaces of the connecting member. The fixing hole is coaxial with the connecting hole when the fixing member engages with the bent structure of the connecting member. This application features a matching design between the base plate body and the mounting bracket. The mounting bracket is limited by the cooperation of the connecting members and fixing members. Furthermore, the internal threads at the connecting holes of the base plate body eliminate the need for welding nuts, allowing for easy assembly and eliminating the risk of welding deformation.
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