JPH0259377U

JPH0259377U -

Info

Publication number: JPH0259377U
Application number: JP13969188U
Authority: JP
Priority date: 1988-10-26
Filing date: 1988-10-26
Publication date: 1990-04-27

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例に係る定流量弁の
組み立て断面図、第２図及び第３図は弁座部材の
正面図と右側面図、第４図及び第５図は弁体の正
面図と左側面図、第６図は第３図と同様の図であ
るが第２実施例に使用する弁体を示す。第７図及
び８図は従来例の使用状態を示す側断面面図、第
９図は他の実施例を示す側断面図である。２２：ハウジング、２３：弁座部材、２４，５
０：弁体、２５，５１：弁座、２７，５２：溝、
２６ａ，２６ｂ，５３：傾斜部、３１：本体部、
３２：当接面、３３：ニードル部、３４：円錐体
部。 Fig. 1 is an assembled sectional view of a constant flow valve according to the first embodiment of the present invention, Figs. 2 and 3 are a front view and a right side view of a valve seat member, and Figs. 4 and 5 are a valve body. The front view and left side view of FIG. 6 are similar to FIG. 3, but show the valve body used in the second embodiment. 7 and 8 are side sectional views showing the conventional example in use, and FIG. 9 is a side sectional view showing another embodiment. 22: Housing, 23: Valve seat member, 24, 5
0: Valve body, 25, 51: Valve seat, 27, 52: Groove,
26a, 26b, 53: inclined part, 31: main body part,
32: Contact surface, 33: Needle portion, 34: Cone portion.

Claims

[Claims for Utility Model Registration] 1. A cylindrical valve seat member positioned within a flow path and having a valve seat formed on one end surface thereof, and a valve body that cooperates with the valve seat member to control the flow rate. The valve seat of the valve seat member is provided with a plurality of grooves extending from the outer periphery to the inner periphery in the radial direction of the valve seat member, and a plurality of grooves are provided in the valve seat of the valve seat member from the upper edges of both sides in the circumferential direction. The valve body is made of a compressible material such as rubber, and extends gradually into the central hole of the valve seat member from the center of the contact surface that abuts the valve seat. a needle portion whose diameter is reduced; when the abutting surface of the valve body abuts the valve seat, the abutting surface, the groove and the inclined portion constitute an opening communicating with the central hole of the valve seat member; A constant flow valve configured to change the area of the opening in accordance with the pressure acting on a surface of the valve body opposite to the contact surface. 2. The constant flow valve according to claim 1, wherein the opposite surface of the valve body is formed in a conical shape. 3. The constant flow valve according to claim 1, wherein the grooves are arranged at equal intervals in the circumferential direction.