JPS59188997U

JPS59188997U - Automatic air supply device for well pump

Info

Publication number: JPS59188997U
Application number: JP8541283U
Authority: JP
Inventors: 吉田　久信; 泉坂本
Original assignee: 三菱電機株式会社
Priority date: 1983-06-02
Filing date: 1983-06-02
Publication date: 1984-12-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は自動空気補給装置を取付けた井戸ポンプの構成
図、第２図は従来の自動空気補給装置の縦断面図、第３
図はこの考案による自動空気補給装置の一実施例の縦断
面図である。図において、１は自動空気補給装置、２は
カバー、３はケース、４はダイヤフラム、５はポンプ、
７は圧力タンク、９はスプリング、１１は空気吸入弁、
１８はフロート弁、１９はフロート弁室、２０はフロー
ト弁座、８１はレベルパイプである。なお、各図中同一
符号は同−又は相当部分を示す。Figure 1 is a configuration diagram of a well pump equipped with an automatic air replenishment device, Figure 2 is a vertical sectional view of a conventional automatic air replenishment device, and Figure 3
The figure is a longitudinal cross-sectional view of one embodiment of the automatic air supply device according to this invention. In the figure, 1 is an automatic air supply device, 2 is a cover, 3 is a case, 4 is a diaphragm, 5 is a pump,
7 is a pressure tank, 9 is a spring, 11 is an air intake valve,
18 is a float valve, 19 is a float valve chamber, 20 is a float valve seat, and 81 is a level pipe. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

an automatic air replenishment device main body; a first chamber disposed within the automatic air replenishment device main body that communicates with the suction side of the pump; and a second chamber that communicates with the pressure tank; a partitioning diaphragm; a spring disposed in the first chamber and biasing the diaphragm toward the second chamber; a spring that opens and closes in response to negative pressure in the second chamber to suck air into the second chamber; In the automatic air replenishment device for a well pump, the automatic air replenishment device for a well pump has an air suction valve that obtains an air intake valve, and a level pipe that is inserted to a predetermined size into the pressure tank and can communicate between the second chamber and the inside of the pressure tank. and a float valve chamber provided in a communication passage between the float valve chamber and the level pipe; An automatic air supply device for a well pump, characterized by comprising a float valve that closes.