Title:
PASSIVE AUTOMATIC SWITCHING VALVE AND AUTOMATIC CLEANING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/024947
Kind Code:
A1
Abstract:
Disclosed are a passive automatic switching valve and an automatic cleaning apparatus comprising the passive automatic switching valve. The passive automatic switching valve is used in places where effluent passages of fluids such as water and a gas are switched. The passive automatic switching valve comprises a valve seat (11, 12) and a spool (12, 22), wherein the valve seat (11, 12) is provided with an inlet (11J, 21J) and outlets (11KA, 11KB, 11KC, 21KB, 21KF); the spool (12, 22) is mounted in the valve seat (11, 12) and located between the inlet (11J, 21J) and the outlets (11KA, 11KB, 11KC, 21KB, 21KF); and an influent communicating port (12J, 22J) of the spool (12, 22) abuts against the inlet (11J, 21J), and a plurality of outlets (11KA, 11KB, 11KC, 21KB, 21KF) of the valve seat (11, 12) are provided. When the spool (12, 22) is driven, an effluent communicating port (12K, 22K) thereof is switched between the plurality of outlets (11KA, 11KB, 11KC, 21KB, 21KF). The passive automatic switching valve is provided with a pressure switching structure, so that the spool (12, 22) can move under the drive of influent pressure as the influent pressure fluctuates, thereby realizing switching, not needing to additionally arrange complex structures such as an electric control, occupying a small space, reducing costs, and facilitating maintenance.
Inventors:
LU XIAOPING (CN)
ZHOU FEI (CN)
ZHOU FEI (CN)
Application Number:
PCT/CN2016/092182
Publication Date:
February 16, 2017
Filing Date:
July 29, 2016
Export Citation:
Assignee:
LU XIAOPING (CN)
International Classes:
F16K11/065; A47L15/14
Foreign References:
| CN105090561A | 2015-11-25 | |||
| CN204942610U | 2016-01-06 | |||
| JPH09217846A | 1997-08-19 | |||
| CN104013375A | 2014-09-03 | |||
| CN101387353A | 2009-03-18 | |||
| CN102506196A | 2012-06-20 | |||
| DE3525742A1 | 1987-01-29 |
Attorney, Agent or Firm:
DONG GUAN HUA NAN PATENT & TRADEMARK OFFICE CO., LTD (CN)
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