JPS6012762U

JPS6012762U - Elastic seat ring for butterfly valve

Info

Publication number: JPS6012762U
Application number: JP10492483U
Authority: JP
Inventors: 三宅　勝信; 掘井　浩志
Original assignee: 株式會社栗本鐵工所
Priority date: 1983-07-05
Filing date: 1983-07-05
Publication date: 1985-01-28
Also published as: JPS628691Y2

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来技術を示す正面断面図、第２図・第３図は
本考案の実施例（実用新案登録請求の範囲第２項記載）
を説明するために弁体、シートリング、弁箱との接触状
況を示した正面図及び平面図の断面図、第４図はその作
用を説明的に示す部分拡大の断面図、第５図は該シート
リングの形状を示す斜視図（一部切截）、第６図・第７
図は別の実施例（実用新案登録請求の範囲第３項記載）
に用いるシートリングの斜視図（一部切截）であ、る・１・・・弁箱、２・・・弁軸、３・・・弁体、４・・・
シートリング、５・・・シートリング外周の凹部、６・
・・凸条、７・・・凹部、８・・・凹部。Fig. 1 is a front sectional view showing the prior art, and Figs. 2 and 3 are examples of the present invention (described in claim 2 of the utility model registration).
4 is a cross-sectional view of a front view and a plan view showing the state of contact with the valve body, seat ring, and valve body; FIG. 4 is a partially enlarged cross-sectional view illustrating the action; Perspective view (partially cut away) showing the shape of the seat ring, Figures 6 and 7
The figure is another embodiment (described in item 3 of the claims for utility model registration)
It is a perspective view (partially cut away) of a seat ring used in the following. 1... Valve box, 2... Valve stem, 3... Valve body, 4...
Seat ring, 5... Concavity on the outer periphery of the seat ring, 6.
...Convex strip, 7...Concave portion, 8...Concave portion.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）弁箱と、弁箱に回動自在に緩装した弁軸と、弁軸
に固定した弁体と、弁体の外周に穿設した環状の凹溝内
に弾性シートリングを嵌着してなるバタフライ弁におい
て、該弾性シートリンクの弁箱内面と接する外周面に規
則的な凹凸を設けることを特徴とするバタフライ弁。。(1) A valve body, a valve stem rotatably attached to the valve body, a valve body fixed to the valve stem, and an elastic seat ring fitted into an annular groove drilled on the outer periphery of the valve body. 1. A butterfly valve characterized in that regular irregularities are provided on the outer circumferential surface of the elastic seat link in contact with the inner surface of the valve body. .

（２）前記弾性シートリングの外周面に、円周方向に複
数列の連続する凸条を設け、かつ該シートリングの弁軸
貫通孔を有する軸承部に接する外周面には該貫通孔と同
心状に複数列の連続する凸条を設けた実用新案登録請求
の範囲第１項記載のバタフライ弁。(2) A plurality of rows of continuous protrusions are provided in the circumferential direction on the outer circumferential surface of the elastic seat ring, and the outer circumferential surface of the seat ring in contact with the shaft bearing portion having the valve shaft through hole is concentric with the through hole. A butterfly valve according to claim 1 of the utility model registration claim, which is provided with a plurality of rows of continuous protrusions in a shape.

（３）前記弾性シートリングの外周面に、円周方向に一
定間隔ごとに凹状の陥没部を設け、該シートリングの弁
軸貫通孔を有する軸承部に接する外周面にも該貫通孔と
同心状に一定間隔ごとに凹状陥没部を設けた実用新案登
録請求の範囲第１項記載のバタフライ弁。(3) Concave depressions are provided on the outer peripheral surface of the elastic seat ring at regular intervals in the circumferential direction, and the outer peripheral surface of the seat ring in contact with the shaft bearing portion having the valve shaft through hole is also concentric with the through hole. The butterfly valve according to claim 1, which is a utility model, and is provided with concave depressions at regular intervals.