JPS5831567Y2 - fire extinguisher safety device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a safety device for a fire extinguisher that prevents the fire extinguisher's activation lever from being pushed down carelessly and activating the fire extinguisher.

Most of the small fire extinguishers installed in general homes or buildings are sealed from a pressure gas cylinder attached to the bottom of the lid by pushing down a lever on the lid that closes the upper opening of the container filled with extinguishing agent. It has a structure in which the extinguishing agent inside the container is ejected from the nozzle by tearing the board and using the pressure gas ejected from the cylinder.

Fire extinguishers with this type of structure are equipped with a safety device that allows the lever to be pushed down only when it is intended to be used, to prevent the lever from being inadvertently pushed down and extinguishing agent spewed out even when there is no fire outbreak. It is necessary to provide

For this reason, conventional safety devices have been widely used in which a pin is provided to prevent the activation lever of a fire extinguisher from being pushed down inadvertently, and when the extinguisher is in use, the pin is removed before the activation lever is pushed down.

However, such conventional safety devices may slow down firefighting efforts when a fire occurs.

Therefore, the applicant first removed the fire extinguishing agent spray hose with a nozzle attached to its tip from its standby position along the side of the container and pointed it toward the fire source, and then the We devised a fire extinguisher safety device in which the stopper comes off in conjunction with the movement of the hose, allowing the activation lever to be pushed down (Utility Model Registration No. 1359182).

That is, as shown in FIGS. 1 and 2, an annular portion 3a formed at one end of a sufficiently rigid wire 3 is loosely fitted in the middle of a hose 2 with a nozzle 1 attached to its tip, and the other end of the wire 3 is The end portion is fixed to one end of a rotating piece 6 which is pivotally connected to the lid body 5 by a shaft 4, and a locking piece 7 formed at the other end of this rotating piece 6 is attached to a shaft 8.
The actuating lever 9 is opposed to the lower edge 9a of the actuating lever 9 which is pivotally connected to the lid body 5.

When the fire extinguisher is not in use, the hose 2 is locked to the locking device 11 provided at the lower side of the container 10, so the rotating piece 6 fixed to the wire 3 is in the state shown in FIG. The lowering is prevented by the locking piece 7, so that the fire extinguisher will not be activated inadvertently.

When using a fire extinguisher, remove the hose 2 from the locking device 11 and point the nozzle 1 toward the fire source as shown in Figure 2.
The rotating piece 6 fixed to the wire 3 rotates to the state shown in FIG. 2, and the locking piece 7 comes off the lower edge 9a of the activation lever, allowing the activation lever 9 to be pushed down as shown by arrow a. become able to.

In addition, the reference numeral 12 in the figure is a handle to hold when carrying the fire extinguisher or pushing down the starting lever 9, 13 is a pressure gas cylinder, and 14- is a handle for breaking the seal of this cylinder 13 by lowering the starting lever 9. It is a hollow firing pin that allows high pressure gas to escape.

If you operate this fire extinguisher according to the above sequence, it will start up quickly and smoothly with few steps, but in the event of a fire, you will have to hastily remove the hose from the retainer 11 and point it at the source of the fire.
When the group lever 9 is pressed down beforehand, the upper surface of the locking piece 7 is pressed by the lower edge 9a of the lever 9, so the rotating piece 6 does not rotate easily even when the hose is pointed at the fire source. , the fire extinguisher will not start smoothly.

It is natural that machines, appliances, etc. will not perform their original functions unless they are operated according to the prescribed usage instructions, but this invention is a fire extinguisher that can smoothly start the fire extinguisher even in such cases. The purpose is to provide a safety device for the equipment.

Hereinafter, the present invention will be explained with reference to drawings showing embodiments.

FIG. 3 is a top side view of a fire extinguisher equipped with the safety device of the present invention.

A lower end portion of a support piece 16 is pivotally attached to the upper surface of a handle 12 fixed to a lid 5 that closes the upper opening of the container 10 by a shaft 15.

A pin 17 projects from the side surface of the support piece 16, and this pin 17 is attached to a shaft 18.2 on the side surface of the handle 1.2. A recess 2 formed at the upper edge of one end of the rotating piece 19 pivotally mounted by the
0., is fitted.

At the other end of the rotating piece 19, an annular part 3a formed at the end of the connected and fixed wire 3 is fitted onto the lower socket 2.
Similarly to the previous device shown in the figure, the rotary piece 19 is configured to rotate around the shaft 18 by raising and lowering the hose 2.
,' The safety device for the fire extinguisher of the present invention is constructed as described above, so that when the fire extinguisher is in standby state, the hose is connected to the retainer 1.
1 (Figs. 1 and 2), the recess 20 on the upper edge of the end of the rotating piece 19 and the pin 17 on the side surface of the support piece 16 are aligned as shown in Fig. 3. The support piece 16 is engaged with the shaft 15.
This prevents rotation around the center.

Therefore, even if the lever 9 is pushed, the support piece 16 is held in the state shown in FIG. 3, thereby preventing activation and the lever 9 from being pushed down.

When using a fire extinguisher, use hose 2 as shown in Figure 5.
Remove it from the locking device and point the nozzle at the fire source.1. The rotating piece 19 rotates together with the wire 3, and the engagement between the pin 17 and the recess 20 is released.1. The support piece 16 becomes rotatable about the shaft 15'.

When the activation lever 9 is pushed down in this state, the lever 9 rotates around the shaft 8, and comes into contact with the lower surface of the lever 9.The upper end of the support piece 16 is marked with an arrow F. A force is applied in the direction shown.

Of this force in the F direction, the support piece 16 is rotated counterclockwise around the shaft 15 in the direction of the arrow f, so that the support piece 16 moves as the activation lever 9 is pushed down. The activation lever 9 is pushed down without being obstructed by the support piece 16, and the fire extinguisher can be activated.

In order to make the support piece 16 fall more easily, a spring device (for example, a weak spiral spring attached to the shaft 15) may be provided.

Even if the fire extinguisher is started in the wrong order and the hose 2 is turned upward while pushing down the parts 9 and 9, the rotating piece 19 will still be able to absorb the frictional force between the pin 17 and the side edge of the recess 20 ( The insect climbs up due to the above component force f.

) can be easily rotated by applying enough force to overcome the weak force exerted by the fire extinguisher, so even if you make a mistake in operating it, you will not be unable to start the fire extinguisher.

The fire extinguisher of the present invention, which is configured and operates as described above, can start the fire extinguisher reliably and accurately in the event of a fire, even if the person gets distracted and makes a mistake in starting the fire extinguisher. It has great practical effects, such as being able to provide a safe and reliable fire extinguisher.

[Brief explanation of drawings]

Figures 1 and 2 show a fire extinguisher equipped with a safety device according to an earlier invention. The figure shows the state before use, and Figure 2 shows the state when ready to start.
The figures show examples of the implementation of the present invention; Figure 3 is a top view and top view of the fire extinguisher before use; Figure 4 is a top view of the fire extinguisher before use;
FIG. 5 is an enlarged cross-sectional view taken along the line A--A in the figure, and FIG. 5 is a side view similar to FIG. □ ・1: Nozzle,
2: Hose, 3: Wire, 3a: Annular part, 4: Shaft, 5; - Lid body, 6: Rotating piece, 7: Locking piece, 8: Shaft,
9; Starting lever, 9a: Lower edge, 10:, Container, 1:-
1, Locking tool, 12: Handle, 13: Pressure gas cylinder, 14
: firing pin, '15 :, 'shaft □, 16: support piece, 17: pin, 18.: shaft, 19: rotating piece, 20: recess.

Claims (1)

[Scope of utility model registration request] The lower end of a support piece 16 is pivotally attached to the upper surface of a handle 12 fixed to a lid 5 that closes the upper opening of a fire extinguisher container 10 through a shaft 15, and a pin 17 protrudes from the side surface of this support piece 16;
A recess 20 formed at the upper edge of one end of a rotating piece 19 pivotally connected to the side surface of the handle 12 by a shaft 18 is made removable, and the end of the wire 3 connected and fixed to the other end of the rotating piece 19 A safety device for a fire extinguisher, in which a formed annular portion 3a is fitted onto a hose 2 for discharging extinguishing agent.