Title:
DOOR OPENER
Document Type and Number:
WIPO Patent Application WO/2020/134988
Kind Code:
A1
Abstract:
Disclosed is a door opener, comprising a shell consisting of an upper cover plate and a lower cover plate. The key is as follows: a pushing device for pushing a door to rotate is provided in the shell; one end of a driving device with a spring drives the pushing device to rotate by means of a rotating and swinging member, and the other end of the driving device is provided with a locking release device matching the driving device. According to the technical solution of the present invention, the door opener is unique in structural design, facilitates door opening and avoids any possible damage to users.
Inventors:
QI ZHI (CN)
LI SHANXIONG (CN)
LI SHANXIONG (CN)
Application Number:
PCT/CN2019/123859
Publication Date:
July 02, 2020
Filing Date:
December 08, 2019
Export Citation:
Assignee:
GUANGDONG JUSEN HARDWARE PREC MFG CO LTD (CN)
International Classes:
E05F1/10; E05F5/02
Foreign References:
| CN109763733A | 2019-05-17 | |||
| CN103742016A | 2014-04-23 | |||
| CN102472068A | 2012-05-23 | |||
| CN103015825A | 2013-04-03 | |||
| CN108071727A | 2018-05-25 | |||
| CN101680260A | 2010-03-24 | |||
| CN103314172A | 2013-09-18 | |||
| US20150084492A1 | 2015-03-26 |
Other References:
See also references of EP 3904626A4
Attorney, Agent or Firm:
BEIJING YUANBEN INTELLECTUAL PROPERTY LAW OFFICE (CN)
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