JPS6019869U

JPS6019869U - Ball valve sealing device

Info

Publication number: JPS6019869U
Application number: JP11299083U
Authority: JP
Inventors: 寺本　恵成
Original assignee: 株式会社　日阪製作所
Priority date: 1983-07-19
Filing date: 1983-07-19
Publication date: 1985-02-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案シール装置を備えたボールバルブの断面
図、第２図は要部拡大断面図で、イは垂直状に積層した
環状シール体を用いた場合、川ま水平状に積層した環状
シール体を用いた場合を示す。第３図イ９口は環状シー
ル体の一部拡大斜視図で、イは軟質シール材、硬質弾性
体、軟質シール材の順に積層した例、口は硬質弾性体、
軟質シール材、硬質弾性体の順に積層した例を示す。第
４図イ１口は環状シール体の平面図、第５図は環状シー
ル体の他実施例を示す斜視図、第６図はボールバルブの
内圧Ｐと受圧面Ｐ１との関係を示す断面図、第７図は流
体からの受圧面Ｐ２と環状シール体の設置方向を変えた
場合を示す断面図である。１．２・・・・・・ボディ、４・・・・・・ボール、７
・・・・・・弁座、８・・・・・・環状シール体、９・
・・・・・硬質弾性体、１０・・・・・・軟質シール材
。第１図　　　− 第４図Figure 1 is a sectional view of a ball valve equipped with the sealing device of the present invention, Figure 2 is an enlarged sectional view of the main parts, and A shows the difference between vertically stacked annular seal bodies and horizontally stacked annular seals. A case using an annular seal body is shown. Figure 3 A9 is a partially enlarged perspective view of the annular seal body, A is an example in which a soft sealing material, a hard elastic body, and a soft sealing material are laminated in this order;
An example is shown in which a soft sealing material and a hard elastic body are laminated in this order. Fig. 4 A1 is a plan view of the annular seal body, Fig. 5 is a perspective view showing another embodiment of the annular seal body, and Fig. 6 is a sectional view showing the relationship between the internal pressure P of the ball valve and the pressure receiving surface P1. , FIG. 7 is a sectional view showing a case where the installation direction of the pressure receiving surface P2 from the fluid and the annular seal body is changed. 1.2...Body, 4...Ball, 7
... Valve seat, 8 ... Annular seal body, 9.
...Hard elastic body, 10...Soft sealing material. Figure 1 - Figure 4

Claims

[Scope of utility model registration request]

(1) A hard elastic body made of corrugated metal or other material and a soft sealing material such as asbestos, graphite, etc. are alternately laminated and integrated into the circumferential space formed by the body of the ball valve and the back of the valve seat. A ball valve sealing device equipped with an annular seal body.

(2) The sealing device for a ball valve according to claim (1), wherein the annular sealing body is arranged such that the central valley-shaped surface constituting the waveform of the hard elastic body becomes the pressure-receiving surface.

(3) The sealing device for a ball valve as set forth in claim (1) of the utility model registration, in which the annular seal body is spirally wound and laminated.

(4) The sealing device for a ball valve according to claim (1), which is a utility model, in which a plurality of concentric annular bodies having sequentially different diameters are laminated as the annular seal body.

(5) The sealing device for a ball valve according to claim (1), wherein the annular seal body is formed by winding and laminating coils of the same diameter.

(6) The sealing device for a ball valve according to claim (1), in which a plurality of annular bodies having the same diameter are laminated as the annular seal body.

(7) The sealing device for a ball valve according to claim 1, which uses a hard elastic body whose outer peripheral surface is integrally covered with a soft sealing material as the annular seal body.