Title:
DOOR HINGE
Document Type and Number:
WIPO Patent Application WO/2024/092866
Kind Code:
A1
Abstract:
A door hinge, comprising: a first shell (11) and a second shell (12), each of which is of a hollow structure having an opening on one side, the two openings facing each other when the hinge is closed; a linkage assembly, which has two ends respectively hinged in the first shell (11) and the second shell (12) and is provided with a first connecting arm (21) having one end hinged in the first shell (11), the first connecting arm (21) rotating in opposite directions respectively when the hinge is opened and closed; and a reset spring (31), which is arranged in the first shell (11) and has one end connected to the first connecting arm (21), wherein during the process of opening the hinge, the first connecting arm (21) rotates and drives the reset spring (31) for force accumulation; and after the external force for opening the hinge is removed, the reset spring (31) drives the first connecting arm (21) to rotate in the direction of closing the hinge. In the door hinge, by means of improving the linkage assembly and providing the reset spring (31) in one of the shells, the function of automatic closing of the hinge can be achieved by means of a relatively simple structure, thereby reducing the manufacturing cost of the hinge.
Inventors:
MAO LIMING (CN)
XIE ZENGRONG (CN)
TANG HAILONG (CN)
XIE ZENGRONG (CN)
TANG HAILONG (CN)
Application Number:
PCT/CN2022/131099
Publication Date:
May 10, 2024
Filing Date:
November 10, 2022
Export Citation:
Assignee:
GUANGDONG MINGMEN LOCKS INDUSTRY CO LTD (CN)
International Classes:
E05D3/06; E05D11/10; E05F1/12; E05F3/20
Foreign References:
| CN112922476A | 2021-06-08 | |||
| CN215565208U | 2022-01-18 | |||
| CN215565269U | 2022-01-18 | |||
| CN112922484A | 2021-06-08 | |||
| CN108266077A | 2018-07-10 | |||
| CN215565207U | 2022-01-18 | |||
| JP2005264631A | 2005-09-29 | |||
| DE102020108110B3 | 2020-11-12 |
Attorney, Agent or Firm:
GRANDER IP LAW FIRM (CN)
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