JPS5831569Y2 - 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 by pressurized gas cylinders attached to the bottom of the lid by pressing down on 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 the pressurized 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, in the past, safety devices were widely used in which a pin was installed to prevent the fire extinguisher's starting lever from being pushed down inadvertently, and when the fire extinguisher was in use, the pin was removed before the fire extinguisher was pressed 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 5 by a shaft 4, and a locking piece 7 formed at the other end of this rotating piece 6 is pivotally attached to the lid 5 by a shaft 8. The lower edge 9a of the starting lever 9 is opposed to the lower edge 9a thereof.

When the fire extinguisher is not in use (standby), 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 Figure 1. As a result, the lowering of the activation lever 9 is prevented by the locking piece 7, and 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 9, 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 high pressure gas cylinder that breaks the seal of the cylinder 13 by lowering the starting lever 9. It is a hollow firing pin that allows gas to escape.

This fire extinguisher can be started quickly and smoothly with few steps if operated according to the above-mentioned order, but in the event of a fire, it is important to remove the hose from the latch 11 and point it at the source of the fire before pressing the activation lever 9. When pressed down, the upper surface of the locking piece 7 is pushed by the lower edge 9a of the lever 9, so even if the hose is directed toward the fire source, the rotating piece 6 does not rotate easily, making it difficult to start the fire extinguisher smoothly. It disappears.

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 body 5 that closes the upper opening of the container 10 by a shaft 15, and an activation lever 9 located above this support piece 16 is pivoted.
A through hole 17 is bored in the upper surface of the holder.

A rotating piece 19 is pivotally mounted near the through hole 17 on the upper side of the activation lever 9 via a shaft 18 provided on the side surface of the activation lever 9 .

This rotating piece 19 is made by bending a metal plate into a U-shape and fitting it onto the activation lever 9 so as to straddle the lever 9.
A holding piece 20 bent downward is formed at the end of the lever 9 near the shaft 8. It stands out.

The upper end of the support piece 16 is in contact with the protrusion of the holding piece 20 toward the lower surface of the activation lever, which prevents the support piece 16 from rotating clockwise in FIGS. 3 and 4 and falling down. ing.

As shown in FIGS. 4 and 5, one end of a wire 3 is connected and fixed to the rotating piece 19, and an annular portion 3a formed at the other end of the wire 3.
is loosely fitted onto the hose 2, and as in the case of the previous invention shown in Figs.
It is configured to be able to rotate around 8.

The fire extinguisher safety device of the present invention is configured as described above, so that when the fire extinguisher is on standby and the hose is connected to the
1 (FIGS. 1 and 2), as shown by solid lines in FIG. 16 and prevents the support piece 16 from rotating about the shaft 15.

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

When using a fire extinguisher, remove the hose 2 from the locking device and point the nozzle toward the fire source as shown by the chain line in Figure 3, and the rotating piece 19 will rotate together with the wire 3 to connect with the holding piece 20 and support. Piece 16
The upper end of the support piece 16 is released from the upper end, and 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 about the shaft 8, and a force in the direction indicated by arrow F in FIG. 3 is applied to the upper end of the support piece 16 that comes into contact with the lower surface of the lever 9.

Because of the component force in the direction F, that is, the component force in the direction of the arrow f which attempts to rotate the support piece 16 counterclockwise around the shaft 15, the support piece 16 moves as the activation lever 9 is pushed down. It is possible to fall down in the direction of the arrow, push down the activation lever 9 without being obstructed by the support piece 16, and activate the fire extinguisher.

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 you make a mistake in the order of starting the fire extinguisher and turn the hose 2 in two directions while pushing down the starting lever 9, the rotating piece 19 will not move between the holding piece 20 and the supporting piece 1.
6 (generated by the above component force f) with the side surface of the upper end.

) can be easily rotated by applying enough force to overcome the weaker side, so even if you make a mistake, you will not be unable to start the fire extinguisher.

. The fire extinguisher of the present invention, which is constructed and operates as described above, ensures that the fire extinguisher will start even if the fire extinguisher is distracted and makes a mistake in the activation operation when a fire occurs.
'It has great practical effects, such as being able to do two things and provide a safe and reliable fire extinguisher.

[Brief explanation of the drawing]

Figures 1 and 2 □ show a fire extinguisher equipped with a safety device according to an earlier invention, Figure 1 is a state before use, Figures 1 and 2 are partial longitudinal side views showing a state in which preparations are completed for activation, and Figure 3 ~5. Figures show an embodiment of the present invention. Figure 3 is a partial vertical side view of the upper part of the fire extinguisher, Figure 4 is a side view of the same, and Figure 5 is a view of the rotating piece attached to the top of the activation lever. FIG. □ ・1: Nozzle, 2: Hose, 3:
Wire, 3a: Annular part 4: Shaft, 5: Lid, 6: Rotating piece,
7: Locking piece, 8: Shaft, 9: Starting lever, 9a: Lower edge, 1
0: Container, 11: Locking tool, 12: Handle, 13: Pressure gas cylinder, 14: Firing pin, 15: Shaft, 16: Support piece, 17:
Through hole, 18: shaft, 19: rotating piece, 20: holding piece.

Claims (1)

[Scope of utility model registration request] The lower end of a support piece 16 is pivoted by a shaft 15 to the upper surface of a handle 12 fixed to a lid 5 that closes the upper opening of a fire extinguisher container 10, and an activation device that rotates about a shaft 8 above the handle 12 A lever 9 is provided, a through hole 17 is bored in the activation lever 9, and a rotating piece 19 is pivoted on the upper side of the activation lever 9 so as to be rotatable about a shaft 18. A restraining piece 20 formed in the part is made to protrude from the lower surface of the activation lever 9 through the through hole 17 and engage with the upper end part of the support piece 16,
A fire extinguisher safety device in which an annular part 3a formed at the other end of a wire 3 whose one end is connected and fixed to a rotating piece 19 is loosely fitted onto a hose 2 for discharging a fire extinguishing agent.