The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Mar. 11, 2022
Shijiazhuang Wulong Brake Corporation, Shijiazhuang, CN;
Zhengfang Han, Shijiazhuang, CN;
Wulin Han, Shijiazhuang, CN;
Bo Wang, Shijiazhuang, CN;
Xiangle Qiao, Shijiazhuang, CN;
Yan Zhao, Shijiazhuang, CN;
Dejun Cui, Shijiazhuang, CN;
Guoqi Liu, Shijiazhuang, CN;
SHIJIAZHUANG WULONG BRAKE CORPORATION, Hebei, CN;
Abstract
The present application relates to a drum brake, which includes a brake arm; a brake shoe; a base; and a brake torque detection device; the brake shoe is hinged on the brake arm through a brake shoe shaft, the brake arm is provided with a shaft hole penetrating through the brake shoe shaft, and the shaft hole is an oblong shaft hole, and a hole wall at one side of the oblong shaft hole is provided with a wear-resistant strip configured for pressing against the brake shoe shaft during braking of the drum brake; the brake torque detection device includes a sensing plate and a tension and compression sensor arranged on the sensing plate; one end of the sensing plate is connected to the brake shoe shaft, and the other end of the sensing plate is connected to the brake arm.