JPH01157278U

JPH01157278U -

Info

Publication number: JPH01157278U
Application number: JP5446888U
Authority: JP
Priority date: 1988-04-21
Filing date: 1988-04-21
Publication date: 1989-10-30

Description

[Brief explanation of the drawing]

第１図は本考案装置の使用態様を示す図、第２
図はフート弁の断面図、第３図は他の実施例を示
す模式図である。１……ポンプ、１ａ……吸引口、３……吸込管
、４……フート弁、５……ケーシング、６……中
央部ケーシング、９……通路手段（短管）、１８
……吸引開閉口、２７……通路手段（小径管）。 Figure 1 is a diagram showing how the device of the present invention is used;
The figure is a sectional view of the foot valve, and FIG. 3 is a schematic diagram showing another embodiment. DESCRIPTION OF SYMBOLS 1... Pump, 1a... Suction port, 3... Suction pipe, 4... Foot valve, 5... Casing, 6... Central casing, 9... Passage means (short pipe), 18
... Suction opening/closing port, 27... Passage means (small diameter pipe).

Claims

[Claims for Utility Model Registration] 1. Connecting the suction pipe 3 to the suction port 1a of the pump 1,
In a water suction device for a pump equipped with a foot valve 4 at its tip, one end opens to the atmosphere above the suction opening/closing port 18 of the foot valve 4, and the other end opens near the suction port 1a of the pump 1. A water suction device for a pump, characterized in that it is provided with passage means (9 and 27) that communicate with each other, and the passage means is set to have a suitably smaller passage cross section than the passage cross section of the suction pipe 3. 2. A short pipe 9 with a relatively small passage cross section is disposed penetratingly through the peripheral wall of the casing 6, and its tip is opened to the atmosphere above the suction opening/closing port 18, while its opposite tip is inserted into the casing 5. Separate small diameter pipe 2
A foot valve characterized by being connected to 7.