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:
Feb. 01, 2022
Filed:
Jun. 11, 2020
Shenzhen Bosaidong Technology Co., Ltd., Shenzhen, CN;
Hong Chen, Shangrao, CN;
Yingdong Qi, Guangzhou, CN;
Other;
Abstract
A double brake structure includes a line reel rotatably provided, at least one set of centrifugal pin, a centrifugal brake ring movably provided in the centrifugal brake ring, a centrifugal assembly for making the centrifugal pin be close to an inner wall of the centrifugal brake ring and making the centrifugal pin rotate in the centrifugal brake ring when the line reel is rotating, and for automatically adjusting the kinetic friction force between the centrifugal pin and the inner wall of the centrifugal brake ring according to the speed of the line reel when the centrifugal pin contacts with the inner wall of the centrifugal brake ring, and a magnetic brake mechanism for adjusting the speed of the line reel. The present disclosure is easy to use with stable brake performance, and can achieve the function of automatic compensatory braking.