Title:
CENTRAL FORCE BALANCED DRAINAGE VALVE LIFTING MECHANISM
Document Type and Number:
WIPO Patent Application WO/2020/207095
Kind Code:
A1
Abstract:
Disclosed by the present invention is a central force balanced drainage valve lifting mechanism arranged in a drainage valve. The drainage valve comprises a button assembly, the lifting mechanism, a floating cylinder assembly, a sealing disc assembly and a base assembly. The floating cylinder assembly is installed on the base assembly; the button assembly, the lifting mechanism and the sealing disc assembly are installed in the floating cylinder assembly in sequence and cooperate in linkage. The lifting mechanism comprises a first balance arm, a second balance arm, a connecting shaft, a third balance arm, a fourth balance arm and a lifting rod; a middle portion A of the first balance arm rotationally cooperates with a head D of the second balance arm, a tail portion B of the first balance arm rotationally cooperates with a head F of the third balance arm, a tail portion E of the second balance arm rotationally cooperates with a head H of the fourth balance arm, a tail portion K of the fourth balance arm rotationally cooperates with a tail portion G of the third balance arm and rotationally cooperates with the head of the lifting rod at the same time, the axes of the above rotational cooperation are parallel so as to form a four-bar linkage lifting structure which is stable and subject to balanced stress.
Inventors:
CHEN JIAXU (CN)
YOU WEISONG (CN)
YOU WEISONG (CN)
Application Number:
PCT/CN2020/072356
Publication Date:
October 15, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
CHEN JIAXU (CN)
International Classes:
E03D5/092; E03D1/35
Foreign References:
| CN109881747A | 2019-06-14 | |||
| CN210086398U | 2020-02-18 | |||
| CN203569658U | 2014-04-30 | |||
| JP2000291098A | 2000-10-17 | |||
| CN202144613U | 2012-02-15 | |||
| CN106638846A | 2017-05-10 | |||
| CN207331898U | 2018-05-08 | |||
| US20070163034A1 | 2007-07-19 |
Attorney, Agent or Firm:
XIAMEN YICHUANGLIANZHI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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