JPH0189668U

JPH0189668U -

Info

Publication number: JPH0189668U
Application number: JP18581887U
Authority: JP
Priority date: 1987-12-04
Filing date: 1987-12-04
Publication date: 1989-06-13

Description

[Brief explanation of the drawing]

第１図及び第３図は本考案の各例に係る断面示
正面図で第１図は左半部閉弁状態、右半部開弁状
態を、第３図は閉弁状態を夫々示し、第２図は第
１図における抜け止め機構の構造図である。１……弁本体、２……流体入口、３……弁室、
４……弁座、５……流体出口、７……ねじ部、９
……環状凹溝、１０……弁棒、１４……シールリ
ング用溝、１５……抜け止め機構、１６……有端
リング、１７……止め輪、１８……シールリング
、１９……凹み。 1 and 3 are cross-sectional front views of each example of the present invention, FIG. 1 shows the left half valve closed state and the right half open state, and FIG. 3 shows the valve closed state, respectively. FIG. 2 is a structural diagram of the retaining mechanism in FIG. 1. 1...Valve body, 2...Fluid inlet, 3...Valve chamber,
4...Valve seat, 5...Fluid outlet, 7...Threaded part, 9
...Annular groove, 10... Valve stem, 14... Seal ring groove, 15... Stopping mechanism, 16... Ended ring, 17... Retaining ring, 18... Seal ring, 19... Recess .

Claims

[Claims for Utility Model Registration] 1. A valve body 1 having a valve seat 4, a valve chamber 3 provided with a threaded portion 7, a fluid inlet 2, and a fluid outlet 5, and a valve body 1 housed in the valve chamber 3 and screwed onto the threaded portion 7. The fluid inlet 2
- A valve stem 10 that closes and opens the fluid outlet 5, and an end ring whose inner diameter is smaller than the inner diameter of the valve chamber 3 and which is fitted into an annular groove 9 provided on the inner periphery of the rear part of the valve chamber 3. 16 as well as the large diameter tip 17A, which is slightly smaller than the inner diameter of the valve chamber 3, and a small diameter rear portion 17B that fits into the end ring 16, and is fitted into the valve chamber 3 before the end ring 16. The fluid sealing valve is equipped with a retaining mechanism 15 consisting of a retaining ring 17 that is inserted into the annular groove 9 to expand the ring 16 within the annular groove 9, and is provided on the valve stem 10 or the peripheral wall of the valve chamber 3. The pressure contact state of the seal ring 18 in the seal ring groove 14 is made so that the seal ring groove 14 faces the position in which the valve stem 10 and the threaded portion 7 are in the screwed state before reaching the screwing limit point. A fluid sealing valve characterized in that a releasable recess 19 is provided around the peripheral wall of the valve chamber 3 or the valve stem 10 in the circumferential direction. 2. A recess 19 capable of releasing the pressed state of the seal ring 18 is provided in the peripheral wall of the valve chamber 3, adjacent to the annular groove 9 on the inside, and gradually expanding toward the groove 9 side. The fluid seal valve according to claim 1, which is a tapered groove.