JPH0185589U

JPH0185589U -

Info

Publication number: JPH0185589U
Application number: JP18094687U
Authority: JP
Priority date: 1987-11-30
Filing date: 1987-11-30
Publication date: 1989-06-07

Description

[Brief explanation of drawings]

第１図は本考案に係るダイヤフラム弁の一実施
例を示す断面図、第２図は本考案の他の実施例を
示す要部断面図、第３図は第２図―線断面図
である。１……弁本体、２……流路、３……上蓋、７…
…バルブステム、９……バルブプラグ、１０……
弁座、１１……着座部、１２……特性部、１３…
…ダイヤフラム、１４……ダイヤフラムリング、
１７，１７Ａ〜１７Ｃ……サポートリング、１８
，１８ａ〜１８ｄ……波形凹部、１９……サポー
トフレーム、２０，２１……保持部。 Fig. 1 is a sectional view showing one embodiment of a diaphragm valve according to the present invention, Fig. 2 is a sectional view of main parts showing another embodiment of the invention, and Fig. 3 is a sectional view taken along the line of Fig. 2. . 1...Valve body, 2...Flow path, 3...Top cover, 7...
...Valve stem, 9...Valve plug, 10...
Valve seat, 11...Seating part, 12...Characteristic part, 13...
...Diaphragm, 14...Diaphragm ring,
17, 17A to 17C...Support ring, 18
, 18a to 18d... Waveform recess, 19... Support frame, 20, 21... Holding part.

Claims

[Scope of utility model registration request]

The valve stem is formed into a ring shape and includes an upper cover attached to the valve body, a valve stem that slidably passes through the upper cover and is integrally provided with a valve plug at the inner end for controlling opening and closing of the flow path in the valve body. A metal diaphragm with a corrugated cross section has an outer circumferential edge fixed to the upper lid via a diaphragm ring and an inner circumferential edge fixed to the outer circumference of the valve plug; The support ring inserted into the top side waveform recess, and the inside
a support frame that supports the upper end of the support ring, the outer end of which is rotatably held by the valve plug and a holding portion provided on the upper cover, and at least one end of which is slidably held in the longitudinal direction; A diaphragm valve characterized by comprising: