JPS644956U

JPS644956U -

Info

Publication number: JPS644956U
Application number: JP9794587U
Authority: JP
Priority date: 1987-06-26
Filing date: 1987-06-26
Publication date: 1989-01-12

Description

[Brief explanation of the drawing]

第１図ないし第６図は本考案に係るガス溶接器
等の開閉装置の一実施例を示すものであり、第１
図は全体構造の断面図、第２図は操作軸の側面図
、第３図はボールの断面図、第４図は他のボール
の断面図、第５図はシール部材の正面図、第６図
はシール部材の半断面図である。第７図は一部を
破断して示した従来の開閉装置の側面図、第８図
はコツクの正面図である。１０……バルブ本体、１１……流体通路、１１
ａ……ボール室、１２……流体通路、１２ａ……
ボール室、１３……軸孔、１４……軸受け孔、１
５……ボール、１５ａ……連通孔、１６……シー
ル部材、１７……シール部材、１８……止め環、
１９……ボール、１９ａ……連通孔、２０……シ
ール部材、２１……シール部材、２２……止め環
、２３……回動軸。 Figures 1 to 6 show an embodiment of a switchgear for a gas welder, etc. according to the present invention, and the first embodiment
Figure 2 is a sectional view of the overall structure, Figure 2 is a side view of the operating shaft, Figure 3 is a sectional view of the ball, Figure 4 is a sectional view of another ball, Figure 5 is a front view of the seal member, and Figure 6 is a sectional view of the other ball. The figure is a half sectional view of the seal member. FIG. 7 is a partially cutaway side view of a conventional switchgear, and FIG. 8 is a front view of the switch. 10...Valve body, 11...Fluid passage, 11
a...Ball chamber, 12...Fluid passage, 12a...
Ball chamber, 13...Shaft hole, 14...Bearing hole, 1
5...Ball, 15a...Communication hole, 16...Sealing member, 17...Sealing member, 18...Retaining ring,
19... Ball, 19a... Communication hole, 20... Seal member, 21... Seal member, 22... Stop ring, 23... Rotation shaft.

Claims

[Scope of utility model registration request]

a valve body having a plurality of fluid passages in which ball chambers are formed and a shaft hole formed between the ball chambers; and a valve body having a communication hole and extending in the circumferential direction around the center of the shaft hole in the ball chamber. a plurality of balls that are rotated to open and close the fluid passage; a sealing member that is placed in the ball chamber in contact with the circumferential surface of the balls and prevents fluid from leaking from the circumferential surface of the balls; a retaining ring that is screwed into the ring and retains the ball and the seal member in the ball chamber; a rotation shaft that is inserted into the shaft hole with both ends engaged with the ball and synchronizes the rotation of adjacent balls; , a gas welder, etc., characterized in that it is equipped with an operating shaft that is engaged with and pivotally connected to one of the balls in a bearing hole formed in an extension position of the shaft hole of the valve body, and rotates the ball. switchgear.