Title:
MAINTENANCE WINDOW LOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/048536
Kind Code:
A1
Abstract:
A maintenance window locking device, comprising a maintenance window body (1), a maintenance window cover (2), a fastening plate (3), a first limiting mechanism (1a) comprising a groove, and a roller (3a). The fastening plate (3) comprises a fastening plate body and a pin shaft (3c) which are integrally formed; the pin shaft (3c) is rotatably connected to the roller (3a); the maintenance window body (1) is connected to a first end of the maintenance window cover (2); the fastening plate body is rotatably connected to a second end of the maintenance window cover (2); the first limiting mechanism (1a) is located on the maintenance window body (1); the fastening plate body drives the maintenance window cover (2) to move toward the maintenance window body (1); the roller (3a) rolls along the first limiting mechanism (1a) until the roller is locked into the groove, so that the maintenance window cover (2) and the maintenance window body (1) are tightly attached.
Inventors:
XU XIAOHUI (CN)
Application Number:
PCT/CN2021/115659
Publication Date:
March 10, 2022
Filing Date:
August 31, 2021
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
E06B3/36; E05C19/12
Foreign References:
| CN208040237U | 2018-11-02 | |||
| CN205047017U | 2016-02-24 | |||
| CN205531985U | 2016-08-31 | |||
| CN203482529U | 2014-03-12 | |||
| US20160167842A1 | 2016-06-16 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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