JPS5896163U - butterfly valve - Google Patents

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 the drawing]

第１図は従来のバタフライ弁を示す正面図、第２図は第
１図の■−■線の断面図、第３図はこの考案の一実施例
を示す正面図、第４図は第３図の一部破断を示す開状態
の側面図、第５図は第３図のＶ−Ｖ線の断面図で、開状
態と閉状態との中間位置を示す。第６図ｉ第３図の■−
■線の断面図で閉の状態を示す。第７図は軸受の平面図
、第８図は第７図の！−■線の断面図、第・９図はばね
の正面図、第１−０図は第４図の状態を示す要部の平面
図、第１１歯は第５図９状態を示す要部の平面図、第１
２図は第６図の状態を示す要部の平面図である。図にお
いて、８は弁体、９は貫通穴、１０は操作軸、１８は弁
板、１９はパツキンである。なお各図中同一符号は同−
又は相当細分を示す。　　　づ 、ゝFig. 1 is a front view showing a conventional butterfly valve, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a front view showing an embodiment of this invention, and Fig. 4 is a FIG. 5 is a sectional view taken along the line V-V in FIG. 3, showing an intermediate position between the open state and the closed state. Figure 6 i Figure 3 -
■A cross-sectional view of the line shows the closed state. Figure 7 is a plan view of the bearing, and Figure 8 is the same as Figure 7! -■ line sectional view, Figure 9 is a front view of the spring, Figures 1-0 is a plan view of the main part showing the state in Figure 4, tooth 11 is the main part showing the state in Figure 5 and 9. Plan, 1st
FIG. 2 is a plan view of the main parts showing the state of FIG. 6. In the figure, 8 is a valve body, 9 is a through hole, 10 is an operating shaft, 18 is a valve plate, and 19 is a packing. Note that the same symbols in each figure are the same.
or a corresponding subdivision. Zu, ゝ

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）弁体の貫通穴を一端から他端に向って拡開した円
錐状とし、上記貫通穴の中心線と直交する直交線を中心
として上記弁体の外周の一側を貫通した操作軸を上記弁
体の他側で回動自在に支承し、上記操作軸に支持された
弁板の外周が上記貫通穴と所定の間隔があくような直径
とし、上記操作軸の中心より上記弁体の一端側の上記貫
通内に上記弁板を配置して上記操作軸で支承し、上記弁
板が上記貫通穴を閉塞位置にあるとき所定の量圧縮され
て上記貫通穴の内側と当接するように上記弁板の外周に
パツキンを装着したものにおいて、上記弁体は上記貫通
穴を閉塞する位置にあるとき上記弁体の一端方向に所定
の距離押圧されていることを特徴とするバタフライ弁。 　　　−(1) The through hole of the valve body has a conical shape that widens from one end to the other end, and the operating shaft passes through one side of the outer periphery of the valve body centered on an orthogonal line that is perpendicular to the center line of the through hole. is rotatably supported on the other side of the valve body, and the outer circumference of the valve plate supported by the operating shaft has a diameter such that there is a predetermined distance from the through hole, and the valve plate is supported from the center of the operating shaft to the valve plate. The valve plate is disposed within the through hole on one end side and supported by the operating shaft, so that when the valve plate is in the through hole closing position, it is compressed by a predetermined amount and comes into contact with the inside of the through hole. A butterfly valve in which a packing is attached to the outer periphery of the valve plate, wherein the valve body is pressed a predetermined distance toward one end of the valve body when the valve body is in a position to close the through hole. − （２）　　操作軸は弁体が貫通穴を閉塞する位置にある
とき中心８軸が弁体の一端側に所定の距離移動するよう
なりランク軸状に構成されていることを特徴とする実用
新案登録請求の範囲第１項記腎 載のバタフライ弁。(2) A utility model characterized in that the operating shaft is configured in the shape of a rank shaft so that when the valve body is in a position to close the through hole, the center eight shafts move a predetermined distance toward one end of the valve body. Registered claim 1: A kidney-mounted butterfly valve. （３）　　弁板は貫通穴を閉塞する方向にばねで押圧さ
れていることを特徴とする実用新案登録請求の範囲第１
項あるいは第２項記載のバタフライ弁。(3) Utility model registration claim 1, characterized in that the valve plate is pressed by a spring in the direction of closing the through hole.
The butterfly valve described in item 1 or item 2.