JPS59936Y2 - automatic fire extinguisher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic fire extinguishing system in which a fire extinguishing agent can be ejected from a fire extinguishing agent container by gravity through a spout pipe connected to the container.

Conventionally, a pressure generator that stores a pressure agent separately from the extinguishing agent is attached to the extinguishing agent storage container, and the pressure agent in the pressure generator is mixed with the extinguishing agent and sprayed out, or extinguishing agent There is a pressure-type container that is equipped with an actuating blade that crushes the container in order to squirt out the pressure extinguishing agent, and the extinguishing agent inside the container is spouted out by the pressure of this actuating blade. All of these devices have extremely complex structures and are also economically expensive, making them unsuitable for use in, for example, paddy drying equipment for farmers.

The present invention has been proposed to eliminate these conventional drawbacks, and will now be described with reference to embodiments shown in the drawings.

Reference numeral 1 denotes a container containing a fire extinguishing agent 2 such as a reinforced fire extinguishing solution, and the container 1 is provided with a ventilation hole 3 at the top and a hook 4 for hooking onto a pillar, wall, etc.

Reference numeral 5 denotes a hose fitting attached to the bottom of the storage container 1. A hose 6 is attached to the fitting 5, a valve body 7 is attached to the lower end of the hose 6, and a valve guide chamber 8 is attached to the valve body 7.
is screwed on.

The valve guide chamber 8 is provided with a horizontal fire extinguishing agent jet pipe 9 on its peripheral wall, and inside thereof is provided a valve body 10 with a spring holder 13 at its lower part, and the spring holder 13 and the valve body 7 A spring 14 is interposed between the valve body 10 and the lower surface of the valve body 10.
The valve head 11 is shaped like a truncated cone so that it can enter the nozzle 12 of the valve body 7 and come into close contact with the valve seat 7' at the end of the nozzle.

Further, a valve stem 15 that moves integrally with the valve body 10 is provided below the spring receiving collar 13 of the valve body 10, and an O-ring 16 made of rubber or the like is provided at the base of the stem to prevent leakage of extinguishing agent. Installation, usually the spring 14 is attached to the spring receiver flange 13.
is lifted and compressed to bring the valve head 11 into pressure contact with the valve seat 7' of the jet hole 12 of the valve body, thereby preventing the extinguishing agent from spewing out (see Fig. 1).

Reference numeral 17 denotes a heat sensing plate, which has an umbrella-like shape that expands downward, and has a recess 18 in the center that supports the valve stem 15 against the spring 14, and a solder 19 that melts at low temperatures.
It is assumed that the valve guide chamber 8 is attached to the umbrella-shaped attachment portion 20 at the lower end of the valve guide chamber 8.

As shown in FIG. 1, the present invention constructed as described above normally connects a storage container 1 containing a fire extinguishing agent to the atmosphere through a ventilation hole 3 in a place where there is a risk of fire outbreak, and connects the hook 4 with the container 1. The storage container is hung by hanging it on a pillar or wall as appropriate, and the ejection pipe 9 is positioned in an appropriate direction, so that in the event of a fire, the heat sensing plate 17 detects high temperature heat as shown in FIG. The low-temperature melting solder melts and causes the sensing plate 17 to fall from the lower end umbrella-shaped mounting portion 20 of the valve guide chamber 8, and at the same time, the valve stem 15 protrudes downward from the valve guide chamber 8 due to the elastic force of the spring 14. , the valve body 10 formed integrally with the valve body 7 automatically descends to open the jet hole 12 of the valve body 7, and the extinguishing agent 2 is spouted from the spout pipe 9. Since the valve head 11 of No. 10 has a truncated conical shape, it easily enters the jet hole 12 of the valve body 7 under normal conditions, and the valve head comes in close contact with the valve seat to prevent leakage of extinguishing agent, and also to sense heat in the event of a fire. Since the plate 17 is formed into an umbrella-like body that expands downward, it has extremely high heat absorbing properties, and furthermore, even when the valve body 10 is pushed downward, the O-ring 16 of the valve stem 15 is strongly held by the spring retaining collar 13. It has the effect of completely preventing the leakage of fire extinguishing agent by pressing it downward on the stem through hole and completely preventing the leakage of extinguishing agent. This provides an automatic fire extinguishing system.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of the entire automatic fire extinguishing system of the present invention, and FIG. 2 is an enlarged sectional view of the main parts in operation. 1... Fire extinguishing agent container, 7... Valve body, 8... Valve guide chamber, 10...
Valve body, 13... Spring receiving flange, 15... Valve stem, 16... O-ring, 17...
...Heat sensing plate.

Claims (1)

[Scope of utility model registration request] In an automatic fire extinguishing system in which a fire extinguishing agent storage container is communicated with the atmosphere and a heat sensing plate is provided on a jet pipe attached to the storage container, a valve body and a valve guide chamber are attached to the jet pipe, and a valve guide chamber is installed in the valve guide chamber. A valve body having a spring receiving flange and an O-ring on the lower side and having a truncated conical valve head is provided, and the valve body is attached to the lower part which is provided on the outer periphery of the lower end of the valve guide chamber and is attached with a low-temperature melting material. An automatic fire extinguishing device characterized in that an umbrella-shaped heat sensing plate that expands in the direction of the valve is always brought into pressure contact with the spout hole of the valve body against a spring.