JPS6143015Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a gas circuit breaker.

Conventionally, when an earthquake occurs while gas appliances are in use, the first requirement for safety measures is to close the gas main valve. However, in the event of an emergency, the conventional method had the disadvantage that it was necessary to rotate the pot, and the gas could not be shut off with a single touch.

The present invention allows gas to be shut off easily or automatically when an earthquake occurs.

The structure of the present invention is such that a closing rod 6 that closes the opening a of the gas inlet pipe 2 or the opening 4 of the gas outlet tube 3 opened into the container 1 is provided so as to be able to move forward and backward through the container 1. A spring 5 is provided on the inside of the container 1 to press the end toward the opening, and a locking portion 7 is provided on the outside of the container 1, and one end is provided in the middle of an operating rod 8 that is rotatably provided with a pin 15 in the container 1. An engaging piece 9 is provided to detachably engage with the locking part 7, and a compression spring 10 provided between the container 1 and the operating rod 8 attracts the engaging piece 9 to the locking part 7, and the actuating rod is 8 and a pusher 11 is provided at the other end thereof.

To explain with reference to the drawings below, a gas inlet pipe 2 and a gas outlet pipe 3 are provided in a container 1, and a spring is installed at a position corresponding to the opening 4 of the gas inlet pipe 2 or the gas outlet pipe 3 (or the opening a of the gas inlet pipe 4). A closing rod 6 is provided which advances due to the stretching force of 5, the outer end of the closing rod 6 is made to protrude outside the container 1, and a locking portion 7 (concave or convex portion) provided at the outer end is provided on the operating rod 8. The operating rod 8 is provided with a compression spring 10, and the operating rod 8 is provided with a pushing part 11 (the pushing part 11 is used as a weight and when vibration occurs, the operating rod 8 (The engaging piece 9 may be automatically disengaged from the locking part 7 by the vibrations of an earthquake, like the pendulum of a clock.)

An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, a gas inlet pipe 2 and a gas outlet pipe 3 are fixed to a container 1 made of metal material, fire-resistant reinforced plastic, etc., and placed at a position corresponding to the opening 4a of the gas outlet pipe 3 (or gas inlet pipe 2). A closing rod 6 having a conical tip is provided so as to penetrate through the guide body 12 and to be advanced by a spring 5. A locking portion 7 is provided at the other end of the closing rod 6 that penetrates the guide body 12 and projects outward from the container 1.
bellows 1 to further prevent gas leakage.
3 will be provided. 14 is a handle, 16 is a hose, and 17 is a mounting bolt.

On the other hand, below the container 1, an operating rod 8 having a pushing part 11 supported by a pin 15 is attached via a compression spring 10, and an engaging piece 9 is locked to a locking part 7 provided on the closing rod 6. Install it in a possible position. (See Figure 2).

Note that the pushing portion 11 may be made into a weight and suspended like a pendulum of a clock.

Next, the operation of the present invention will be explained.

In FIG. 1, when the handle 14 is pulled to the right, the closing rod 6 is set with the spring 5 being compressed and the engaging piece 9 engaged with the locking portion 7. Gas enters the container 1 through the gas inlet pipe 2, and then exits through the gas outlet pipe 3, making it possible to use the gas appliance.

At this time of setting, the engagement piece 9 engaged with the locking part 7 is moved by the compression spring 10 of the operating rod 8, as shown in FIG. The engaged state is reliably maintained because it is pressed in the direction of

To shut off the gas, push the pusher 11 in the right direction in FIG. Since the compression spring 10 is compressed and moved to the right, the engagement piece 9 engages the locking portion 7 of the closing rod 6.
It's more out of place. When the engagement piece 9 comes off, the closing rod 6 automatically advances to the left due to the tension of the compressed spring 5, and as shown in FIG. 3, the left end conical portion b becomes the gas outlet pipe. The gas is blocked by closing the opening 4 of 3.

In this embodiment, the pushing part 11 is operated by pushing it by hand. However, if an object such as a bottle is placed near the pushing part 11, the object will hit the pushing part 11 during an earthquake and the above-mentioned operation will not occur. will be carried out.

Furthermore, if the pusher 11 is made heavy and installed in a suspended state, the pusher 11 swings and gas is automatically shut off.

Therefore, in the present invention, since the engaging piece 9 of the operating rod 8, which is rotatably provided on the container 1 with a pin 15, is detachably provided on the locking portion 7 of the closing rod 6, the operating rod 8 cannot be rotated. This allows the engaging piece 9 to be easily engaged with the locking part 7, and even if the engaging piece 9 is disengaged from the locking part 7, the pin 15 prevents the operating rod 8 from falling off the container 1, and it is immediately engaged. Gas can be supplied by engaging the engagement piece 9 with the locking part 7, and furthermore, since the engagement piece 9 is engaged with the locking part 7, it is ensured that the closing rod 6 moves. Moreover, since the closing rod 6 is drawn toward the container 1 by the spring 5, the locking portion 7 and the engaging piece 9 are reliably engaged and will not come off inadvertently. , the engagement piece 9 is connected to the locking portion 7 by the compression spring 10.
Since the engagement piece 9 is designed to be attracted to the locking part 7, it is not only more securely engaged and will not come off due to a weak impact, but also even if the engagement piece 9 is about to come off from the locking part 7, it will not be pulled by the compression spring 10. The engaging piece 9 is attached to the locking part 7
Since the gas supply is securely engaged, the gas supply will not be stopped due to a weak impact that does not require stopping the gas supply. As explained above, according to the present invention, in the event of an earthquake, the gas can be easily shut off by simply pressing the push part without having to close the gas main valve.Moreover, the structure is simple, so the cost is low, etc. It has the effect of

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway front view of the gas circuit breaker according to the present invention;
2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a plan view showing the operating state of FIG. 1. 1 is a container, 2 is a gas inlet pipe, 3 is a gas outlet pipe, 4 is an opening, 5 is a spring, 6 is a closing rod, 7 is a locking part, 8
1 is an operating rod, 9 is an engagement piece, 10 is a compression spring, 11 is a push portion, 12 is a guide body, 13 is a bellows, 14 is a puller, and 15 is a pin.

Claims (1)

[Scope of utility model registration request] A closing rod that closes the opening of the gas inlet pipe or the opening of the gas outlet pipe opened into the container is provided so as to be able to move forward and backward through the container, and a spring is provided inside the container to press the end of the closing rod toward the opening. At the same time, a locking part is provided on the outside of the container, and an engaging piece is provided in the middle of the operating rod, which is rotatably attached to the container with a pin at one end, and is removably engaged with the locking part. A gas circuit breaker, characterized in that a compression spring provided between the rods pulls the engagement piece to the locking portion, and a push portion is provided at the other end of the operating rod.