JPH03105791U

JPH03105791U -

Info

Publication number: JPH03105791U
Application number: JP1494690U
Authority: JP
Priority date: 1990-02-17
Filing date: 1990-02-17
Publication date: 1991-11-01
Anticipated expiration: 2005-02-17
Also published as: JPH0755421Y2

Description

[Brief explanation of the drawing]

第１図から第４図に至る各図は、本考案の二方
向弁の、傘形弁が配置されている隔壁体の通気孔
配置の実施例を示す図であつて、通気孔の径が１
．５粍、２．２粍、１粍の断面円形の場合の配置
の実施例をそれぞれ第１図、第２図、第３図に、
通気孔が１個当たり断面積７．１４平方粍の長孔
の場合の配置を第４図に示す。第５図及び第６図
は従来構成の二方向弁の縦断面図（本考案の二方
向弁にも適用される）、第７図は隔壁体の従来か
ら行われている通気孔配置を示す。符号の説明：１……上部筺体、２……下部筺体
、３……傘形弁、３−１……傘部、３−２……柄
部、３−３……流体通路、３−４……傘部外周縁
、４……球状弁体、４−１……弁座、５……支持
体、５−１……透孔、６……スプリング、７……
第１の弁室、８……第２の弁室、９……隔壁体、
９−１……通気孔、９−２…通気孔を配置するピ
ツチ円。 Each of the figures from FIG. 1 to FIG. 4 is a diagram showing an example of the arrangement of ventilation holes in the partition body in which the umbrella-shaped valve is arranged in the two-way valve of the present invention, and the diameter of the ventilation hole is 1
．． Examples of the arrangement for circular cross sections of 5 mm, 2.2 mm, and 1 mm are shown in Figures 1, 2, and 3, respectively.
FIG. 4 shows the arrangement in the case where each vent hole is a long hole with a cross-sectional area of 7.14 square millimeters. Figures 5 and 6 are longitudinal cross-sectional views of a two-way valve with a conventional configuration (this also applies to the two-way valve of the present invention), and Figure 7 shows the conventional arrangement of ventilation holes in the partition body. . Explanation of symbols: 1... Upper housing, 2... Lower housing, 3... Umbrella valve, 3-1... Umbrella, 3-2... Handle, 3-3... Fluid passage, 3-4 ... Outer periphery of umbrella portion, 4... Spherical valve body, 4-1... Valve seat, 5... Support body, 5-1... Through hole, 6... Spring, 7...
First valve chamber, 8... Second valve chamber, 9... Partition body,
9-1...Vent hole, 9-2...Pitch circle for arranging the vent hole.

Claims

[Scope of utility model registration request]

This is a two-way valve disposed in a fluid passage to give a difference in flow rate depending on the flow direction of the fluid in the fluid passage, and the space formed by the upper housing 1 and the lower housing 2 is called the first valve chamber. An umbrella-shaped valve 3 made of an elastic rubber material is disposed on a partition wall 9 that partitions the valve chamber 7 into a second valve chamber 8 and a second valve chamber 8 . The umbrella portion 3-
1 Ventilation hole 9-1 whose conduction is interrupted by the outer peripheral edge being removed from the partition wall body 9 and seated on the partition wall body 9
is opened, and the handle 3 is attached to the handle 3-2 of the umbrella-shaped valve 3.
A fluid passage 3-3 is formed along the center line of -2, and a spherical valve body 4 is arranged with the lower end opening periphery of the handle 3-2 of the fluid passage 3-3 as a valve seat 4-1, The spherical valve body 4 is urged in the seating direction by a spring 6, and the outer peripheral edge of the umbrella portion 3-1 of the umbrella valve 3 and the spherical valve body 4 are unseated due to a pressure difference in opposite directions. Alternatively, the partition wall is provided with means for providing a difference in flow rate between the fluid flow rate when the umbrella portion 3-1 is seated and the spherical valve body 4 is seated, and the fluid flow rate when the spherical valve body 4 is seated. The opening area and arrangement of each vent hole 9-1 that opens into the body 9 are set so that the opening area and arrangement of each vent hole 9-1 are separated from the partition wall body 9 at the outer periphery of the umbrella portion 3-1 of the umbrella-shaped valve 3 by the fluid flow. The seating area is selected to be one-half or less of the total outer periphery, thereby preventing the generation of noise due to resonance between the pulsating flow of fluid and the outer periphery of the umbrella portion 3-1. Two-way valve.