JPH02110769U

JPH02110769U -

Info

Publication number: JPH02110769U
Application number: JP2002089U
Authority: JP
Priority date: 1989-02-22
Filing date: 1989-02-22
Publication date: 1990-09-05

Description

[Brief explanation of drawings]

第１図ａは本考案に係るチヤツキ弁の平常状態
における縦断正面図、同図ｂは当該チヤツキ弁の
一部材である流通体の一例を示す平面図、第２図
は同上チヤツキ弁の水室内異常昇圧発生時におけ
る縦断正面図、第３図は従来チヤツキ弁を使用し
た湯水混合水栓の半截縦断正面図、第４図は従来
のチヤツキ弁を示す縦断正面図である。１……湯水混合水栓、２ａ……水室、２ｂ……
湯供給路、２ｃ……湯用バルブ、３……湯水混合
路、１０……弁座体、１０ｂ……弁座通口、１１
……開閉弁体、１１ａ……流通軸口、１２……流
通体、１３……作動杆、１３ａ……抜止開閉弁部
、１３ｂ……水室側端部、１４……主スプリング
、１５……副スプリング。 Fig. 1a is a longitudinal sectional front view of the check valve according to the present invention in a normal state, Fig. 1b is a plan view showing an example of a flow body that is a part of the check valve, and Fig. 2 is a water chamber of the check valve. FIG. 3 is a vertical cross-sectional front view of a hot water mixing faucet using a conventional check valve, and FIG. 4 is a vertical cross-sectional front view showing a conventional check valve. 1... Hot water mixer faucet, 2a... Water chamber, 2b...
Hot water supply path, 2c... Valve for hot water, 3... Hot water mixing path, 10... Valve seat body, 10b... Valve seat port, 11
... Opening/closing valve body, 11a... Distribution shaft port, 12... Distribution body, 13... Operating rod, 13a... Removal prevention opening/closing valve part, 13b... Water chamber side end, 14... Main spring, 15... ...Vice spring.

Claims

[Scope of utility model registration request]

In the case of a hot water mixing faucet in which a hot water supply path having a water chamber and a water supply path having a water chamber communicate with a hot water mixing path having a discharge port via a hot water valve and a water valve, respectively, In order to prevent the hot water in each water chamber from flowing back into the hot water supply source and water supply source when the hot water valve and water valve are closed, check valves are installed in the hot water supply path and the water supply path. The valve seat body fixed to the hot water supply channel and the water supply channel is provided with an opening/closing valve body on the water chamber side that can freely close the valve seat passage through which the water chamber and the supply source communicate. Between the flow body provided on the water chamber side of the valve seat body and the opening/closing valve body, hot water from a supply source,
An operating rod is provided with a main spring that has a spring force that causes the on-off valve body to open when water is supplied, and is inserted through the flow body into the flow shaft opening of the on-off valve body in a loosely fitted state. An auxiliary spring smaller than the springing force of the main spring is interposed between the water chamber side end and the flow body, and the water chamber side end of the operating rod is provided with a spring force smaller than the spring force of the main spring. Pressure is applied through the flow shaft opening, and a hot water mixing faucet is formed with a non-removal opening/closing valve portion that can freely close the flow shaft opening by pressing against the valve seat body by the springing force of the auxiliary spring. Check valve for use.