JPS63112677U

JPS63112677U -

Info

Publication number: JPS63112677U
Application number: JP363687U
Authority: JP
Priority date: 1987-01-16
Filing date: 1987-01-16
Publication date: 1988-07-20
Also published as: JPH0410450Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例に係る固形物噛込
み防止定流量バルブを示す縦断側面図、第２図は
その一部を拡大して示す縦断側面図、第３図は第
１図のＡ―Ａ線断面図である。第４図は従来の定
流量バルブを示す縦断面図である。図において、１は基端部室、２は弁箱、３は液
体入口、４は液体出口、５は大径筒状部、６はオ
リフイス、７は弁開放度調整用フランジ、８は筒
状弁体、９は弁体開放方向押圧用ばね、１０はフ
イルタリング、１１はシールリング、１９は円環
状突出部、２０は係合フランジ、２１は通液孔、
２２は通液路、Ｄは流通間隙、ｄはフイルタ間隙
である。 Fig. 1 is a vertical side view showing a constant flow rate valve for preventing solid matter entrapment according to an embodiment of the invention, Fig. 2 is a longitudinal side view showing a part of the valve enlarged, and Fig. 3 is the same as Fig. 1. It is a sectional view taken along the line AA. FIG. 4 is a longitudinal sectional view showing a conventional constant flow valve. In the figure, 1 is a base end chamber, 2 is a valve box, 3 is a liquid inlet, 4 is a liquid outlet, 5 is a large diameter cylindrical part, 6 is an orifice, 7 is a flange for adjusting the valve opening degree, and 8 is a cylindrical valve. 9 is a spring for pressing in the valve body opening direction, 10 is a filter ring, 11 is a seal ring, 19 is an annular protrusion, 20 is an engagement flange, 21 is a liquid passage hole,
22 is a liquid passage, D is a flow gap, and d is a filter gap.

Claims

[Scope of utility model registration request]

A liquid inlet 3 is provided in the middle part of the valve box 2, which has a base end chamber 1 having a larger diameter than the inner diameter of the middle part, and a liquid outlet 4 is provided in the tip part of the valve box 2. In a cylindrical valve body 8 which is provided with a large diameter cylindrical portion 5 and an orifice 6 and is provided with an annular valve opening adjustment flange 7 on the outer periphery of the base end, the valve opening adjustment flange 7 is located at the base end. Club room 1
The large-diameter cylindrical portion 5 at the tip of the cylindrical valve body 8
is movably fitted in the middle part of the valve body 2, and a spring 9 for pressing in the valve body opening direction is engaged with the cylindrical valve body 8. A filter ring 10 is fitted into an annular groove provided on the outer periphery of the filter ring 10, and a seal ring 1 contacts the inner circumferential surface of the intermediate portion of the valve box 2.
1 is fitted between the middle part of the cylindrical valve body 8 and the filter ring 10, and the flow between the middle part inner peripheral surface of the valve body 2 and the large diameter cylindrical part 5 of the cylindrical valve body 8. A constant flow valve for preventing solid matter from getting caught, characterized in that a filter gap d smaller than the gap D is provided.