JPS6128934Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention forms a hook-shaped gas passage extending from the vertical direction to the horizontal direction, and a closure is rotatably attached to the bent part of the passage, and a safety valve is installed on the underside of the closure. It concerns Gaskotsk.

Conventionally, this type of gas tank has a coil spring acting on a pusher that resets a ball valve that presses against the valve seat and closes the hook-shaped gas passage, as seen in Japanese Utility Model Application Publication No. 54-141024. Since the elastic force of the coil spring is applied to the closing member when closing,
The closure is pushed to one side, causing it to slip to one side, causing gas leakage.

The purpose of this invention is to provide a gas tank with a safety valve that eliminates the above-mentioned conventional drawbacks, prevents the closing member from slipping to one side, and has no risk of gas leakage even after long-term use.

In order to achieve the above object, this invention is constructed as follows.

That is, in this invention, a hook-shaped gas passage 2 extending from the vertical direction to the horizontal direction is formed in the main body 1, and a closure 3 is rotatably attached to the bent part of the hook-shaped gas passage 2. In the type of gas tank equipped with a safety valve 6 equipped with a ball valve 5 that opens and closes the communication hole 4 of the closure 3, a valve seat 7 is formed in the communication hole 4 of the closure 3 under abnormal gas pressure. The ball valve 5 which is closed
A leaf spring 8 for releasing the leaf spring 8 is suspended, and a pressing member 9 for actuating the leaf spring 8 is accommodated in a horizontal hole 10 formed in the closure 3, and the rear end of the pressing member 9 Recessed cam surface 1 that contacts when opening and closing
1 and 11' are formed on the inner surface of the tank main body 1. This is a gas tank with a safety valve.
In the figure, reference numeral 12 is an operating knob for the closure, 13 is a coil spring acting on the closure 3, and 14 is a set screw for the leaf spring 8.

Since this device has the configuration described above, when the closing member 3 is turned from the open position to the closed position or from the closed position to the open position, the pressing member 9 moves together with the closing member 3.
exits one recessed cam surface 11, 11', is pushed against the inner surface of the Kotoku body 1, once pushes the leaf spring 8, and enters the other recessed cam surface 11' or 11 again, releasing the pressing action of the leaf spring 8. do. Therefore, the moment the leaf spring 8 is pressed, the ball valve 5, which had come into contact with the valve seat 7 due to an unexpected accident and was blocking the gas passage 2, is opened, and the ball valve 5 falls into the safety valve 6 and is reset. Therefore, as shown in FIG. 4, the leaf spring 8 is pushed only in the middle of the opening/closing movement of the closure 3, so no force is applied to push the closure in one direction when closing or opening. Therefore, there is no one-sided closure, and there is no risk of gas leakage as in the conventional case. Further, the parts related to the reset mechanism are only a leaf spring and a pressing member, which has the effect of reducing the number of parts and reducing costs.

[Brief explanation of the drawing]

The drawings show an embodiment of a gas tank with a safety valve according to this invention, and Fig. 1 is a vertical front view;
FIG. 2 is a cross-sectional plan view when the closer is open, FIG. 3 is a cross-sectional plan view when the closer is closed, and FIG. 4 is a cross-sectional plan view when the closer is in the middle of opening and closing. 1...Kotuku body, 2...Hook-shaped gas passage, 3...
... Closer, 4 ... Communication hole, 5 ... Ball valve, 6 ... Safety valve, 7 ... Valve seat, 8 ... Leaf spring, 9 ... Pressing member, 10 ... Horizontal hole, 11, 11'... ...Recessed cam surface.

Claims (1)

[Scope of utility model registration request] A hook-shaped gas passage 2 extending from the vertical direction to the horizontal direction is formed in the Kotoku body 1, and a closure 3 is rotatably attached to the bent part of the hook-shaped gas passage 2, and a communication hole of the closure 3 is provided on the underside of the closure 3. In a type of gas tank equipped with a safety valve 6 equipped with a ball valve 5 that opens and closes a valve 4, the valve seat 7 formed in the communication hole 4 of the closure 3 is closed with abnormal gas pressure. A horizontal hole 10 in which a leaf spring 8 for removing the ball valve 5 is suspended, and a pressing member 9 for actuating the leaf spring 8 is formed in the closure 3.
A gas tank with a safety valve, characterized in that recessed cam surfaces 11, 11' are formed on the inner surface of the tank main body 1, with which the rear end of the pressing member 9 comes into contact when the closing member 3 is opened and closed.