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.

Date of Patent:
Jul. 08, 2025

Filed:

Oct. 22, 2021
Applicant:

Guangdong Mingmen Locks Industry Co., Ltd., Guangdong, CN;

Inventors:

Guangrui Ran, Guangdong, CN;

Qian Xiao, Guangdong, CN;

Zengrong Xie, Guangdong, CN;

Hailong Tang, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F 1/08 (2006.01); E05F 1/12 (2006.01); E05F 3/20 (2006.01);
U.S. Cl.
CPC ...
E05F 1/1207 (2013.01); E05F 3/20 (2013.01); E05Y 2201/638 (2013.01); E05Y 2201/686 (2013.01); E05Y 2201/702 (2013.01); E05Y 2201/704 (2013.01); E05Y 2900/132 (2013.01);
Abstract

Disclosed is a door hinge, comprising: a fixed body that is provided with a first connecting shaft and a second connecting shaft along the lengthwise direction therein; a linkage assembly of which both ends are respectively hinged to the fixed body and a movable body; the movable body that is provided with a sliding block capable of sliding along the depth direction of the movable body therein, one end of the sliding block being hinged to one end of the linkage assembly, and a straight track surface and an inclined track surface inclined towards the interior of the sliding block being provided at one side of the sliding block; and a self-closing mechanism that is provided on the side of interior of the movable body close to the straight track surface, has a telescopic structure, and has one end abutting against the side surface of the sliding bock.


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