JPS644961U

JPS644961U -

Info

Publication number: JPS644961U
Application number: JP10075587U
Authority: JP
Priority date: 1987-06-29
Filing date: 1987-06-29
Publication date: 1989-01-12

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す切換弁の縦断
面図、第２図は第１図の−線矢視による横断
面図、第３図はシールリングと補強環の分解斜視
図、第４図は水圧負荷によるシールリングの変形
防止を説明する概略図、第５図は従来例を示すも
のである。１……本体、２……ブツシユ、３……流入部、
４……第１流出部、５……第２流出部、６……弁
体、７……スリツプワツシヤ、８……Ｏリング、
９，１０…段部、１１……シールリング、１１ａ
……シール面、１１ｂ……外層、１１ｃ……フラ
ンジ、１１ｄ……内層、１２……補強環。 Fig. 1 is a longitudinal sectional view of a switching valve showing an embodiment of the present invention, Fig. 2 is a transverse sectional view taken along the - line arrow in Fig. 1, and Fig. 3 is an exploded perspective view of a seal ring and a reinforcing ring. FIG. 4 is a schematic diagram illustrating prevention of seal ring deformation due to water pressure load, and FIG. 5 shows a conventional example. 1...Main body, 2...Button, 3...Inflow part,
4...First outflow part, 5...Second outflow part, 6...Valve body, 7...Slip washer, 8...O ring,
9, 10...Step part, 11...Seal ring, 11a
... Seal surface, 11b ... Outer layer, 11c ... Flange, 11d ... Inner layer, 12 ... Reinforcement ring.

Claims

[Scope of utility model registration request]

A cylindrical valve body with one end open is rotatably provided in the main body, the open end of the valve body serves as an inflow part, a plurality of outflow parts are provided on the peripheral wall of the main body, and the valve body further includes:
In the switching valve having a communication hole that aligns with the outflow portion and opens a flow path, a cylindrical seal ring that is perpendicular to and in close contact with the circumferential surface of the valve body is provided at the entrance to the outflow portion, and the seal ring The switching valve is characterized in that a flange is provided on the outside in a position facing the circumferential surface of the valve body.