JPH027576Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a small, disposable pressure accumulating fire extinguisher that is safe and easy to use.

The inventor of the present invention first proposed that the opening of a metal pressure-resistant container containing a medicine and a pressurizing agent has a lip formed by folding and tightening the opening at the upper end, and a breaking part protruding from the center. A metal sealing plate having an upright wall near the outer periphery and an inverted groove-like part forming the upright wall by folding back on the outer periphery is crimped and fitted with a ring-shaped elastic body placed between the inverted groove-like part and the rim of the container. A sealing part of the metal sealing plate protruding downwards inside the container is connected to the nozzle, and a siphon tube is attached to the outside of the sealing part, and a firing pin is provided inside the sealing part which is linked to the operation of the handle. A pressure storage type fire extinguisher characterized in that when the user puts the fire extinguisher in the container and squeezes the handle, the seal is broken with the firing pin, and the pressure of the pressurizing agent causes the chemical and the pressurizing agent to be injected to the outside of the container through a siphon pipe and a nozzle. devised (Utility Application No. 56-72004).

This accumulator type fire extinguisher does not require a separate strong cylinder, has a small number of parts, and can be manufactured at low cost, so it is convenient as an inexpensive, small, disposable type fire extinguisher. Halon 1301, Halon for drugs and pressurizing agents
1211, Halon 2402, Freon 22, Freon 12, carbon dioxide gas, nitrogen gas, etc. are used singly or as a mixture of two or three at a pressure of about 2 to 6 kg/cm ² at room temperature.

If this mixture is filled and sealed in a metal pressure container, as is well known, as the temperature rises, the pressure will also rise, and if the pressure exceeds the allowable pressure of the pressure container, there is a risk that the metal pressure container will be destroyed. It has

In addition, when actually using this pressure-accumulating fire extinguisher, it is necessary to smoothly break the seal with the firing pin by operating the handle. In the case of a hollow firing pin, such as a firing pin made by cutting a cylindrical rod diagonally, the area that comes into contact with the seal breaking part is large, and the force required to break the seal is stronger (15 ~20Kg
It is necessary to grasp the handle with a certain degree of strength), and the disadvantage is that it is difficult for people with weak grip strength to operate the handle.

The object of the present invention is to solve these drawbacks and provide a small, disposable, pressure accumulating fire extinguisher that is safe and easy to use.

That is, the present invention provides the above-mentioned accumulator type fire extinguisher, in which a thin walled portion is provided at the bottom of the breaking portion of the metal sealing plate that protrudes downward inside the container so that it can be easily torn by a hollow firing pin, and the thin walled portion is A pressure accumulator characterized by sealing the holes dotted with a heat-sensitive melting substance that melts before the pressure inside the metal pressure container rises and the metal pressure container is destroyed when heat is applied from the outside. It is a fire extinguisher.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a metal sealing plate, and FIG. 3 is a plan view of the bottom of the broken part of the metal sealing plate.

In the figure, reference numeral 1 denotes a metal sealing plate, which has a sealing part 2 protruding from its center, a standing wall 4 near its outer periphery, and an inverted groove-shaped part 5 formed by folding back the standing wall 4 on its outer periphery. 3
is a siphon pipe attached to the outside of the seal-breaking part 2; 6 is a ring-shaped elastic body housed in the reverse groove-shaped part 5; 8 is a metal pressure-resistant container containing medicine and pressurizing agent 7; The opening 9 at the upper end has a lip 10 formed by folding back and tightening. A ring-shaped elastic body 6 is housed between the mouth rim 10 and the reverse groove 5 of the metal sealing plate 1 to bring the mouth rim 10 and the reverse groove 5 into close contact with each other, thereby making the upright wall 4 of the metal sealing plate 1 By deforming the metal sealing plate 1 into a "dog" shape, the metal sealing plate 1 is made into a metal pressure-resistant container 8.
Crimp and fit. As a result, the broken part 2 of the metal sealing plate 1 protrudes downward into the metal pressure vessel 8, and the siphon tube 3 extends from the broken part 2 of the metal sealing plate 1 to the bottom 11 of the metal pressure vessel 8. Droop.

Reference numeral 12 designates a cap with a handle, which is attached to the metal sealing plate 1 by fitting the claw 13 at the lower part of its outer periphery between the outer end 14 of the metal sealing plate 1 and the shoulder 15 of the metal pressure-resistant container 8. . 16 is a hollow firing pin which is housed in the central hollow part 17 of the cap with handle 12, and when the cap with handle 12 is attached to the metal sealing plate 1, the firing pin 16 is inserted into the metal sealing plate 1.
It is stored inside the unsealing part 2 as shown in Fig. 1.
The internal passage 18 of the firing pin 16 then communicates with the nozzle 19. The seal-breaker 2 thus communicates with the nozzle 19 via the passage 18 inside the firing pin 16. The handle 20 is rotatably connected to the handle cap 12 at its front portion 21 and abuts a protrusion 23 of a nozzle 19 having a spout 22 communicating with a passage 18 inside the firing pin 16. Note that 24 is a handle of the cap 12 with a handle.

For example, a ring-shaped thin part 25 is provided at the bottom of the seal-breaking part 2 of the metal sealing plate 1 that protrudes downward inside the metal pressure-resistant container 8, and this thin part 25 is dotted with holes. 27 is a heat-sensitive melting substance 26 that melts when the pressure inside the metal pressure container 8 rises and the metal pressure container 8 is destroyed when heat is applied from the outside, such as a low-temperature material manufactured by Senju Metal Co., Ltd. Sealed with solder #78.

When using this accumulator type fire extinguisher, when the handle 20 and the handle 24 of the cap with handle 12 are grasped, the hollow firing pin 16 is moved with its sharp lower end to the thin wall of the broken part 2 of the metal sealing plate 1. part 25
easily destroyed. The force required to destroy the thin-walled portion 25 of the seal-breaking portion 2 with the hollow firing pin 16, that is, the force required to grip the handle 20 and the handle 24 of the cap 12 with a handle, is approximately 5 kg, and even a weak woman can easily operate it. I can do it. When the hollow firing pin 16 breaks the thin walled portion 25 of the seal break 2 in this manner, the drug and pressurizing agent 7 enter the siphon tube 3, pass through the internal passage 18 of the firing pin 16, and enter the nozzle 19.
The fire is extinguished by being sprayed from the injection port 22 to the outside of the metal pressure vessel 8.

In addition, since the holes 27 scattered in the thin-walled portion 25 of the unsealed portion 2 are sealed with the heat-sensitive molten substance 26 described above, heat is applied from the outside and the metal pressure-resistant container 8
The heat-sensitive melting substance 26 melts and the drug and pressurizing agent 7 enter the siphon tube 3 and pass through the internal passage 18 of the firing pin 16, before the pressure inside increases and the metal pressure-tight container 8 is destroyed. Since it is ejected from the injection port 22 of the nozzle 19 to the outside of the metal pressure container 8, destruction of the metal pressure container 8 due to heating is prevented and is safe.

In this way, the present invention is easy to operate and use.
The present invention is very useful as it is a safe, small, disposable, pressure accumulating fire extinguisher.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a metal sealing plate, and FIG. 3 is a plan view of the bottom of the broken part of the metal sealing plate. DESCRIPTION OF SYMBOLS 1... Metal sealing plate, 2... Broken part of metal sealing plate 1, 3... Siphon tube, 4... Standing wall of metal sealing plate 1, 5... Reverse groove of metal sealing plate 1 shaped part, 6... ring-shaped elastic body, 7... drug and pressurizing agent, 8...
Metal pressure container, 9... Opening of metal pressure container 8, 10... Mouth rim of metal pressure container 8, 11...
Bottom of metal pressure vessel 8, 12... Cap with handle, 13... Pawl of cap with handle 12, 14... Outer end of metal sealing plate 1, 15... Shoulder of metal pressure vessel 8, 16...Hollow firing pin, 1
7...Central hollow part of cap with handle 12, 1
8... Passage inside the firing pin 16, 19... Nozzle,
20...Handle, 21...Front part of the handle 20, 22...Injection port, 23...Protrusion of the nozzle 19, 24...Handle of the cap with handle 12, 25...Thin wall at the bottom of the unsealed part 2 Part 26...
...Heat-sensitive melting substance, 27... Holes dotted in the thin wall portion.

Claims (1)

[Scope of utility model registration request] The opening at the top end has a rim formed by folding back and tightening, and the opening of the metal pressure-resistant container containing drugs and pressurizing agents has a broken part protruding in the center, a standing wall near the outer periphery, and a raised wall around the outer periphery. A metal sealing plate having an inverted groove forming the upright wall is fitted with a ring-shaped elastic body between the inverted groove and the mouth edge of the container, and the metal sealing plate is inserted into the container. A downwardly protruding sealing part is connected to the nozzle, and a siphon tube is attached to the outside of the sealing part, and a firing pin that is linked to handle operation is housed inside the sealing part, and the firing pin is activated by gripping the handle. In an accumulator type fire extinguisher, the seal is broken and the pressure of the pressurizing agent is used to inject the chemical and pressurizing agent to the outside of the container through a siphon tube and nozzle. A thin-walled part is provided at the bottom of the seal-breaking part so that it can be easily torn by a hollow firing pin, and when heat is applied from the outside to the holes scattered in this thin-walled part, the pressure inside the metal pressure-resistant container increases. A pressure-accumulating fire extinguisher characterized by a metal pressure-resistant container sealed with a heat-sensitive melting substance that melts before being destroyed.