Title:
DRAIN VALVE SWITCH HAVING CLUTCH STRUCTURE, AND DRAIN VALVE
Document Type and Number:
WIPO Patent Application WO/2020/169007
Kind Code:
A1
Abstract:
The present utility model provides a drain valve switch having a clutch structure, and a drain valve. The drain valve switch comprises a switch body, a switch mounted on the switch body, a threaded member, and a linkage member moving between a first position and a second position; when the linkage member is located at the first position, the switch body drives the threaded member by the linkage member to rotate, and the switch body is locked or unlocked by means of the threaded member; and when the linkage member is located at the second position, the linkage member disconnects the linkage between the switch body and the threaded member. When the drain valve switch is assembled or disassembled, the linkage member is firstly placed at the first position, the switch body is linked to the threaded member by means of the linkage member, the switch body is rotated to drive the threaded member to rotate, and thus the whole drain valve switch is locked or unlocked on a water tank or other devices. During normal use, the linkage member is adjusted to the second position, and at this time, even rotating the switch body, the threaded member cannot be driven to be screwed out of the mounting position, thereby guaranteeing that the drain valve switch is not prone to being disassembled.
Inventors:
WANG XINGDONG (CN)
HONG QICHENG (CN)
ZHANG RONGYU (CN)
HONG QICHENG (CN)
ZHANG RONGYU (CN)
Application Number:
PCT/CN2020/075634
Publication Date:
August 27, 2020
Filing Date:
February 18, 2020
Export Citation:
Assignee:
XIAMEN R&T PLUMBING TECHNOLOGY CO LTD (CN)
International Classes:
E03D1/34
Foreign References:
| CN210066925U | 2020-02-14 | |||
| CN205189086U | 2016-04-27 | |||
| CN106195295A | 2016-12-07 | |||
| CN206080379U | 2017-04-12 | |||
| CN107237911A | 2017-10-10 | |||
| CN207109967U | 2018-03-16 | |||
| CN206512804U | 2017-09-22 | |||
| KR20110003864U | 2011-04-20 |
Other References:
See also references of EP 3929366A4
Attorney, Agent or Firm:
XIAMEN SHICHENG ASSOCIATES INTELLECTUAL PROPERTY AGENCY (CN)
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