Title:
SUCTION VALVE
Document Type and Number:
Japanese Patent JP2020023997
Kind Code:
A
Abstract:
To downsize a suction valve, to increase an intake amount, and to reliably prevent odor and leakage of drainage in positive pressure generation with respect to the suction valve fitted to a drain piping.SOLUTION: A suction valve has: an intake hole 31 sucking outside air; a body part 2 which has a communication part 41 flowing the outside air sucked through the intake hole 31 into a drain piping 100; a shaft part 51 which is composed of a first valve body 5 opening/closing the intake hole 31 and a second valve body 6 opening/closing the communication part and fixes the first valve body 5 to the body part 2; and an umbrella type opening/closing part 53 formed around the shaft part 51. The umbrella valve closes the intake hole 31 by the opening/closing part 53 under normal pressure and leaves the opening/closing part 53 from the intake hole 31 when the air is sucked. The second valve body 6 opens the communication part 41 under normal pressure, operates when a reverse flow from the drain piping 100 occurs, and closes the communication part 41.SELECTED DRAWING: Figure 1
Inventors:
KUBONAI HIDEKI
Application Number:
JP2018148322A
Publication Date:
February 13, 2020
Filing Date:
August 07, 2018
Export Citation:
Assignee:
MARUICHI CORP
International Classes:
F16K24/06; E03C1/122; F16K15/14; F16K31/18
Domestic Patent References:
| JP2014074483A | 2014-04-24 | |||
| JP2017194085A | 2017-10-26 | |||
| JP2006283718A | 2006-10-19 | |||
| JPS56162365U | 1981-12-02 | |||
| JP2015169214A | 2015-09-28 |
Foreign References:
| WO2017069685A1 | 2017-04-27 | |||
| KR20170068250A | 2017-06-19 |