JPS62106073U

JPS62106073U -

Info

Publication number: JPS62106073U
Application number: JP12754985U
Authority: JP
Priority date: 1985-08-21
Filing date: 1985-08-21
Publication date: 1987-07-07
Also published as: JPH0247330Y2

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示した逆流防止装置の
縦断面図、第２図および第３図は第１図の作用状
態図、第４図は第１図のＡ―Ａ線断面矢示図、第
５図は第１図のＢ―Ｂ線断面矢視図、第６図は第
１図のＣ―Ｃ線断面矢視図、第７図は従来の逆流
防止装置の縦断面図、第８図はその作用状態図、
第９図は第７図の弁座板の平面図である。４……弁室、６……流入弁口、９……流出口、
１２……吸気弁孔、１４……弁体、１５……逆止
弁体、１７……吸気弁体、１９……発条体。 The figure is a longitudinal cross-sectional view of a backflow prevention device showing one embodiment of the present invention, Figures 2 and 3 are working state diagrams of Figure 1, and Figure 4 is a cross-sectional view taken along line A--A in Figure 1. 5 is a sectional view taken along line B-B in FIG. 1, FIG. 6 is a sectional view taken along line C-C in FIG. 1, and FIG. 7 is a longitudinal sectional view of a conventional backflow prevention device. Figure 8 is a diagram of its working state;
FIG. 9 is a plan view of the valve seat plate of FIG. 7. 4...Valve chamber, 6...Inflow valve port, 9...Outflow port,
12... Intake valve hole, 14... Valve body, 15... Check valve body, 17... Intake valve body, 19... Spring body.

補正昭６２．１．２６図面の簡単な説明を次のように補正する。明細書中「図面の簡単な説明」の欄、すなわち
第８頁の１４行目に「図は本考案の…」とあるを
「第１図は本考案の…」と補正する。Amendment January 26, 1982 The brief description of the drawing is amended as follows. In the ``Brief Description of the Drawings'' section of the specification, that is, on page 8, line 14, the statement ``The figure shows the present invention...'' is amended to ``Figure 1 shows the present invention...''.

Claims

[Scope of utility model registration request]

An inflow valve port, an inflow valve port, and an outflow port are provided on opposing walls of the valve chamber, and an intake valve hole communicating with outside air is provided at the outer edge of the outflow port, and the inflow valve port or the intake valve hole is selected. A water supply system, characterized in that a valve body capable of being closed automatically is provided in the valve chamber so as to be able to move forward and backward, and a spring body is further provided that biases the valve body to an extent that exceeds its own weight to close the intake valve hole. Water backflow prevention device.