Title:
MAGNETIC LEVITATION-BASED DRAINING AND SEALING METHOD AND DEVICE FOR SINK CAPABLE OF ODOR ISOLATION
Document Type and Number:
WIPO Patent Application WO/2021/012633
Kind Code:
A1
Abstract:
The present invention relates to a magnetic levitation-based draining and sealing method and device for a sink capable of odor isolation, for solving the problem of poor sealing performance in the prior art. A water drainage port of the sink discharges water downwards by means of a downward drainage pipe connected to a lower part; an inward-shrinking necking of the downward drainage pipe is sealedly fitted over a magnetic levitation flushing and draining valve for flushing, draining and sealing; the magnetic levitation flushing and draining valve uses an upper-opening water-falling cage of which the periphery of an upper port is sealedly fitted over the inward-shrinking necking of the downward drainage pipe as a downward drainage channel; a sliding rod having a sealing disc at an upper end is provided in the middle part in the water-falling cage in a vertical sliding-fit mode by means of a vertical sliding-fit support frame and used as a valve core reciprocating up and down; the opposite positions of the lower end of the sliding rod and the bottom of the water-falling cage are respectively provided with upper and lower homopolar magnets for providing magnetic repelling power for upward resetting to the sliding rod and the sealing disc; the upper part of the water-falling cage is provided with an annular flange plate sealed with the sealing disc in a vertical squeezing mode; under the impulsive force of flushing and draining, the sealing disc moves downwards, the downward drainage channel is opened by means of the sealing disc and the annular flange plate, and the initial state is restored after flushing and draining. The present invention has advantages of good flushing, draining and sealing performance and high reliability.
Inventors:
GUO YI (CN)
CHEN XIANGQIAN (CN)
GUO HONGXI (CN)
CHEN XIANGQIAN (CN)
GUO HONGXI (CN)
Application Number:
PCT/CN2020/000160
Publication Date:
January 28, 2021
Filing Date:
July 22, 2020
Export Citation:
Assignee:
BEIJING KANGZHIWEI TECH CO LTD (CN)
International Classes:
E03C1/28; E03F5/04
Foreign References:
| CN110258732A | 2019-09-20 | |||
| CN210342117U | 2020-04-17 | |||
| CN207672718U | 2018-07-31 | |||
| CN208618533U | 2019-03-19 | |||
| CN203462565U | 2014-03-05 | |||
| CN110042910A | 2019-07-23 | |||
| CH694274A5 | 2004-10-29 | |||
| JP2018048490A | 2018-03-29 |
Other References:
"Water Supply and Drainage in Buildings", 31 August 2018, JILIN UNIVERSITY PRESS, CN, ISBN: 978-7-5677-4274-1, article DONG JUAN : "Passage; Water Supply and Drainage in Buildings", XP009525692
Attorney, Agent or Firm:
SIPING GUOTAI INTELLECTUAL PROPERTY AGENCY (CN)
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