JPS63106973U

JPS63106973U -

Info

Publication number: JPS63106973U
Application number: JP20385986U
Authority: JP
Priority date: 1986-12-26
Filing date: 1986-12-26
Publication date: 1988-07-11

Description

[Brief explanation of the drawing]

第１図は本考案を二床式緊急遮断弁に適用した
断面正面図、第２図は同じく左側面図、第３図は
弁体の状態、ストツパーの状態、本考案の立形筒
形継手の状態、横形筒形継手の状態、重錘の状態
を示す説明図、第４図は本考案を立形緊急遮断弁
に適用した断面正面図、第５図は同じく左側面図
、第６図は弁体の状態、本考案の立形筒形継手の
状態、横形筒形継手の状態、重錘の状態を示す説
明図、第７図は従来の緊急遮断弁を示す断面正面
図である。５…弁体、６，６ａ…弁軸、８…開閉機、１０
…出力軸、１１…重錘、１２…ウエイトアーム、
１４…ロツク解除装置、１５…ロツク装置、１６
…駆動装置、１７…軸、１８…横形筒形継手、１
８ａ…カム溝、１９…摺動ピン、２１…ピン、２
２…垂直軸、２３…第一中間軸、２４…立形筒形
継手、２４ａ…カム溝、２５…摺動ピン、２６…
第二中間軸、２９…ストツパー。 Fig. 1 is a cross-sectional front view of the invention applied to a two-bed emergency shutoff valve, Fig. 2 is a left side view of the same, and Fig. 3 shows the state of the valve body, the state of the stopper, and the vertical cylindrical joint of the invention. Fig. 4 is a sectional front view in which the present invention is applied to a vertical emergency shutoff valve, Fig. 5 is a left side view, and Fig. 6 7 is an explanatory view showing the state of the valve body, the state of the vertical cylindrical joint of the present invention, the state of the horizontal cylindrical joint, and the state of the weight, and FIG. 7 is a sectional front view showing the conventional emergency shutoff valve. 5... Valve body, 6, 6a... Valve stem, 8... Opening/closing machine, 10
...output shaft, 11...weight, 12...weight arm,
14...Lock release device, 15...Lock device, 16
...Drive device, 17...Shaft, 18...Horizontal cylindrical joint, 1
8a...Cam groove, 19...Sliding pin, 21...Pin, 2
2... Vertical shaft, 23... First intermediate shaft, 24... Vertical cylindrical joint, 24a... Cam groove, 25... Sliding pin, 26...
Second intermediate shaft, 29...stopper.

Claims

[Scope of utility model registration request]

The valve has a butterfly structure in which the valve body is rotated together with the valve shaft to open and close the pipeline, and the valve body is attached to the output shaft of the opening/closing machine above the valve shaft that rotates the valve shaft. A weight that applies a biasing force in the direction of closing the valve, and a locking device that locks the valve body in the normally open state.
In an emergency shutoff valve having a lock release device that unlocks the lock device in an emergency, and a drive device that opens the valve body and returns it to its original state after the emergency shutoff, a weight arm that is a rotation radius of the weight. and a connecting member that connects the valve shaft with the valve shaft, a connecting mechanism that connects the upper end of the vertical axis of the connecting member vertically movably with a pin to a long hole formed in the middle part of the weight arm, and a connecting mechanism that connects the upper end of the vertical axis of the connecting member vertically. A cylindrical joint in which a sliding member fixed to the vertical shaft is engaged in the groove to allow the vertical shaft to play in the vertical direction and rotate the intermediate shaft and the valve shaft of the connecting member. An emergency shutoff valve characterized by being provided with.