JPS5910453Y2 - Gaskotsk - Google Patents

Description

[Detailed description of the invention] This invention relates to a gas cock equipped with an overflow prevention valve.

This gas cock incorporates an overflow prevention valve with a ball inside the valve slip in the middle of the gas passage, and when an abnormality occurs in the gas outflow, the forward overflow prevention valve operates to shut off the gas outflow. Such gas cocks have already been proposed, and there is a tendency for such gas cocks to be used frequently in the future in order to improve the safety of gas use.

The filtration flow prevention valve currently in common use has a structure in which a resin ball is incorporated inside a valve plate with a valve hole at the upper end and a gas hole in the middle of the surrounding wall. , the ball is normally in the lowered position, opening the valve hole, and gas is flowing through the valve hole, but when an overflow occurs, the ball is pushed up, closing the valve hole, and allowing the gas to flow through the hole. It is designed to block outflow.

Conventionally, the above-mentioned overflow prevention valve has been used by being built into a cock body so that the axis of the valve piece is vertical when the cock is attached to a pipe.

For this reason, when the gas cock is used, attachment to the piping is limited to a specific direction.

However, the piping to which the gas cock is attached may protrude horizontally from a wall, etc., or may protrude vertically from a floor or table, etc. Therefore, there are two types of gas cocks: horizontal and vertical. There was the problem of having to prepare.

This idea was made in view of the above problems, and the filtration flow prevention valve, which is installed in the gas passage of the cock body, is arranged at the most suitable angle, and it has a single structure that can handle both horizontal and vertical directions. The present invention provides a gas cock that can be adapted to installation.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, the main body 2 of the gas tank 1 has a connection port 3 at one end to be screwed onto a pipe, a joint 4 for connecting a hose to the side surface of the other end, and a connection port 3 to the joint 4 at the other end. A gas passage 5 that connects the gas passage 5 and a tapered hole 6 that communicates with the middle of the gas passage 5 are provided, and a closure 7 that opens and closes the gas passage 5 by rotation is incorporated in the taper hole 6. An operating mechanism 8 for the closure 7 is attached to the upper part of the holder.

In order to connect the gas passage 5, the closing member 7 is provided with a passage 9 that bends at right angles from the lower end to reach the circumferential surface. It has a push-and-turn structure that rotates it from the closed position to the open position.

Moreover, although the joint 4 has a structure in which the inner tube and the outer tube are fitted together in the illustrated case, a stepped connecting tube into which the hose is directly inserted may be used.

A portion 5a of the gas passage 5 whose axis B is inclined at an angle of 45° with respect to the axis A of the connection port 3 is provided on the upstream side of the closure 7 of the gas passage 5 by bending the gas passage 5. An overflow prevention valve 12 is incorporated into this inclined portion 5a.

In addition, in order to incorporate the overflow prevention valve 12 into the cock body 2, a stopper 1 is provided at a position on the axial extension line of the inclined portion 5a.
An opening 14 that can be sealed with a seal is formed.

The excessive flow prevention valve 12 is formed by a valve cylinder 15 whose tip has a large diameter portion screwed into the inclined portion 5a, and a ball 16 made of resin and assembled into the valve cylinder 15. The valve cylinder 15 has a raised ball 1 at its tip.
6 and a through hole 18 are provided in the peripheral wall of the middle portion, the ball 16 is normally held at a position lower than the through hole 18, and gas passes through the valve hole 17 from the through hole 18. It's flowing.

This overflow prevention valve 12 is attached to the inclined portion 5a so that its axis coincides with the axis B of the portion 5a and is arranged at an inclined angle of 45° with respect to the axis A of the connection port 3.

The overflow prevention valve 12 has a diameter of 45 mm with respect to the axis A of the connection port 3.
Since the angle of inclination is .degree., no overflow occurs when the gas tank 1 is arranged so that the axis A of the connection port 3 is vertical as shown in Figure 1, or when the axis A is horizontal as shown in Figure 2. Prevention valve 1
In the arrangement No. 2, the ball 16 is in the lowered position, which is exactly the same condition, and the arrangement of the gas stick 1 can be selected either horizontally or vertically.

The lower end of the closure 7 faces the upper part of the overflow prevention valve 12, and when the closure 7 is in the open position, a notch 19 provided at the lower end allows the ball 16 to move to the raised position. However, when the closing member 7 is rotated in the closing direction, the ball 16 is pushed in at the lower end, and the excessive flow prevention valve 12 is returned to the open state.

The gas cock of this invention consists of the above-mentioned configuration; the gas cock 1 is installed in a vertical position on a pipe rising from the floor or table as shown in Figure 1, and the gas cock is placed vertically as shown in Figure 2, protruding from the wall. In any of the horizontal positions attached to the piping, the overflow prevention valve 12 has an inclination angle of 45 degrees, and performs the overflow prevention function under exactly the same conditions.

Note that the structure of the gas tank 1 is not limited to one that is attached to piping protruding from the floor or wall;
It may also be a box cock as shown in Figures 4 and 4.

This box cock is arranged so as to fit into a recess provided in a wall or floor, and the arrangement of the operating mechanism 8 of the connection port 3, joint 4, and closure 7 is as shown in FIGS. 1 and 2. However, the overflow prevention valve 12 is installed at an angle of 45° with respect to the axis of the connection port 3, so that the overflow prevention valve 12 is installed at an angle of inclination of 45° with respect to the axis of the connection port 3. The flow prevention valve 12 is under exactly the same conditions.

As described above, according to this invention, the excessive flow prevention valve is installed in the middle of the gas passage at an angle of inclination of 45 degrees with respect to the axis of the connection port, so that the gas cock of a single structure can be used both horizontally and vertically. It can also be used in various situations, reducing the number of types of cooks and facilitating product inventory management.

In addition, the overflow prevention valve is brought close to the end of the closure, and the end of the closure is provided with a notch that allows the ball to come into pressure contact with the valve hole when the closure is open, and the ball is pushed down from the valve hole when the closure is closed. Since the parts are directly provided, the structure of the entire cock can be simplified and at the same time it can be made smaller.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing the gas cock according to this invention in a vertically installed state, Fig. 2 is a longitudinal sectional view showing the same horizontally mounted state as above, and Fig. 3 is a horizontal arrangement showing another example of the gas cock. FIG. 4 is a vertical cross-sectional view showing the vertical arrangement of the same as above. 1... Gas cock, 2... Cock body, 3... Connection port, 4... Hose joint, 5... Gas passage, 5a.
... Inclined portion, 7... Closer, 12... Excess flow prevention valve, 15... Valve cylinder, 16... Ball, 17... Valve hole, 18... Through hole.

Claims (1)

[Scope of utility model registration request] In a gas cock that uses a closure to open and close the gas passage that connects the connection port to the pipe and the hose joint, an overflow prevention valve with a ball inside the valve plate with a valve hole in the upper end is installed at the connection port. Installed at an angle of inclination of 45° to the axis, close to the end of the gas passage upstream of the closure, and installed at the end of the closure, into the valve hole of the ball when the closure is in the open position. A gas cock characterized in that it is provided with a notch that allows upward pressure contact of the valve, and a portion that presses down a ball that is pressed against a valve hole when the closure is in the closed position.