JPS59188998U - Automatic air supply device for well pump - Google Patents

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

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、２１はフタ、２２はフロート弁室本体、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, 21 is a lid, 22 is a float valve chamber body, and 81 is a level pipe. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 自動空気補給装置本体を、ポンプの吸込側に連通ずる第
１の室と圧力タンク内側に連通し得る第２の室とに仕切
るダイヤフラム、このダイヤフラムを第２の室側へ付勢
するスプリング、上記第２の室内が負圧の場合に上記第
２の室内へ空気を吸入する空気吸入弁、及び上記圧力タ
ンク内に所定寸法挿入され、上記第２の室内と上記圧力
タンク内とを連通させ゛るレベルパイプを有した井戸ポ
ンプの自動空気補給装置において、上記第２の室と上記
レベルパイプを連通ずるフロート弁室を有し、上記自動
空気補給装置本体と上記レベルパイプとの間に設けられ
たフロート弁室本体と、上記フロート弁室内に配置され
上記レベルパイプを介して上記圧力タンク内の水が上記
フロート弁室内に吸入された時に上記第２の室への通路
を閉成するフロート弁と、上記フロート弁室内と上記レ
ベル上記レベルパイプ内を連通させる連通孔を有して上
記フロート弁室本体に装着され、上記フロート弁を上記
フロート弁室内に保持させる保持部材とを備えたことを
特徴とする井戸ポンプの自動空気補給装置。A diaphragm that partitions the automatic air supply device main body into a first chamber that communicates with the suction side of the pump and a second chamber that communicates with the inside of the pressure tank; a spring that biases the diaphragm toward the second chamber; an air suction valve that sucks air into the second chamber when the second chamber has a negative pressure; and an air intake valve that is inserted into the pressure tank to a predetermined size to communicate the second chamber with the inside of the pressure tank. An automatic air replenishment device for a well pump having a level pipe, the float valve chamber communicating with the second chamber and the level pipe, the float valve chamber being provided between the automatic air replenishment device main body and the level pipe. a float valve chamber main body, and a float valve that is disposed within the float valve chamber and closes a passage to the second chamber when water in the pressure tank is sucked into the float valve chamber through the level pipe. and a holding member that is attached to the float valve chamber main body and has a communication hole that communicates the float valve chamber with the inside of the level pipe, and that holds the float valve within the float valve chamber. Features an automatic air supply device for well pumps.