JPS58221962A - Automatic fire extinguishing installation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention is installed indoors, and in the event of a fire, the valve automatically opens in response to the high temperature rise in the room, and the room is sprayed and filled with extinguishing agent. This relates to automatic extinguishing equipment that aims to extinguish fires in their early stages.

If a fire breaks out in a hotel or inn, many lives will be lost. In addition, when a fire breaks out in the middle of the night due to improper use of heating equipment or cigarettes in houses, lives can be similarly lost.

Generally speaking, if there is a possibility that someone will discover the fire, such as during the day, it is possible to use the fire extinguisher provided to extinguish the fire at an early stage. In some cases, even if a fire extinguisher is installed in the room, it cannot be used and the fire cannot be extinguished.

Hotels, inns, etc. are legally required to install automatic fire extinguishing systems such as sprinklers in the guest rooms, but hotels and inns without such equipment are under pressure to install fire extinguishing systems as soon as possible. These days, however, it is inevitable that some places have no choice but to go out of business, as they require huge amounts of money to renovate the building and pay for the fire extinguishing equipment itself.

These problems include the high cost of new fire extinguishing equipment, such as the sprinklers that conventional hotels and inns are required to install, or the fact that new fire extinguishing equipment, like conventional fire extinguishers, cannot be operated by humans. If automatic fire extinguishing equipment could be provided that would solve the problem of not being able to perform its functions without it, that could be installed at an extremely low cost, and that could automatically perform the extinguishing function in the event of a fire even when unattended. In other words, it is extremely beneficial in terms of eliminating the loss of human life.

The automatic fire extinguishing equipment according to the present invention was conceived based on the above-mentioned distributed type, and the valve opening/closing mechanism of the injection nozzle of a general fire extinguisher is kept in a closed state by a heat-sensitive variable element, so that when a fire occurs, The valve opening/closing mechanism is operated to open the valve by deforming or breaking the thermosensitive change element due to an abnormally increased temperature.

Next, the automatic fire extinguishing equipment according to the present invention will be described in detail with reference to an illustrated embodiment. FIG. 1 is a cross-sectional view showing the structure of one embodiment, in which (1) is a fire extinguisher container, (2) is an injection nozzle. The extinguishing agent (3) in the container (1) can be sprayed in a mist form at a wide range of spray angles.

A cylindrical valve (6) with a through hole (5) formed in a part of the side of the upper end is slid into the cylindrical mouthpiece (4) at the top of the container (1) in which the nozzle (2) is connected. The interior is designed to be movable. This valve (6) is connected to the upper end (7) of the through hole (5).
) is closed, and an operating rod (8) extends above the closed upper end (7), and the upper end of this operating rod (8) is placed on the pedestal aQ provided at the upper part of the cap (4). Lever (9)
A part of the shaft is attached continuously. The lever (9) is attached to the base (1
The tip (9)a on the nozzle (2) side with the bearing (11) as a boundary and the tip (tO)a of the pedestal UO+ are rotatably attached to a bearing (11) protruding from the top of the are connected to each other via a fuse-shaped thermosensitive element (12) which does not break at room temperature but breaks at high temperature. This heat-sensitive variable element (12) is shorter than the height of the bearing (11), so the lever (9) is lower than the height of the bearing (11).
The tip (9) is inclined such that the front end (9) a side is lower and the rear end (9) b side is higher.

Above the operating rod (8) extending to the upper end of the valve (6)
One end is connected to the rear end (9) b side of the lever (9) with the bearing (11) as a boundary, and the modification lever (8) is connected to the rear end (9) b side of the lever (9), and the rear end (8) is connected to the rear end (9) b side of the lever (9) when the valve (6) is placed in the base (4). Pull upward, and the position of the through hole (5) is the flow path (2) of the nozzle (2).
By being located above position a, the normal nozzle flow path (2) a is in a continuous state.

Further, a tension spring (13) is connected between the rear end (9)b of the lever (9) and the pedestal Q (Ib).
5 so that a tensile force is applied against the locked state of the thermosensitive change element (12).

The heat-sensitive change element (12) is, for example, as shown in FIG.
It consists of a special connecting metal (16) that melts at a temperature of about 5°C, and when the connecting metal (16) melts due to high heat, the drawing plates (14) break and separate from each other.

FIG. 3 shows another embodiment, in which the thermosensitive variable element (
12) shows an example using bimetal. In the case of this bimetal, the lower end of the element (12) is fixed to the pedestal Ql, and the upper end is bent and the locking piece (17) is moved to the lever (
It has a structure in which it is engaged with the tip (9) a of the tip (9).

The automatic fire extinguishing equipment according to the present invention has the above-mentioned structure. For example, if a plurality of containers (1) are installed in a corner of a room and the nozzles (2) are oriented toward the center of the room,
If a fire breaks out at a time when people are not aware, such as late at night or when people are away, and the indoor temperature rises abnormally, extinguishing agent will be automatically sprayed into the room. That is, when the indoor temperature rises due to a fire outbreak, the heat-sensitive element (12) connecting the tip of the lever (9) to the pedestal a1 breaks or deforms, causing the rear end (9) b of the lever (9) to By being pulled by the tension spring (13), the operating rod (8) is pushed down by the lever (9) and communicates the through hole (5) of the valve (6) with the nozzle flow path (2) a. The extinguishing agent (3) in the container (1) is sprayed in the form of mist over a wide area of the room from the nozzle (2). For example, in the case of a hotel room, if these fire extinguishing equipment are placed in two diagonally opposite corners of the room, the extinguishing agent sprayed from each fire extinguishing equipment will fill the room in about 20 seconds, preventing the fire. It can be completely extinguished immediately after it occurs. For home use, it can be placed not only in the living room and bedroom, but also in the kitchen, for example, by placing it near the gas range with the nozzle (2) pointing in the direction of the range. When a fire breaks out due to a fire, extinguishing agent is automatically sprayed in that direction and the fire extinguishing function can be activated instantly.

As described above, in the fire extinguishing equipment according to the present invention, the pulp is released by the heat-sensitive element being changed by the heat generated when a fire occurs. Since the fire can be extinguished automatically, it can greatly contribute to eliminating the loss of precious human lives due to fire.In addition, as the equipment is as cheap as upgrading a conventional fire extinguisher, it is suitable for hotels and inns. It has the extremely beneficial effect of being able to install fire extinguishing equipment, which is required in places where large numbers of people gather, at a much lower cost than conventional sprinkler equipment, and that repairs can be made easily and quickly. be.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the structure of an embodiment of automatic fire extinguishing equipment according to the present invention, FIG. 2 is an enlarged perspective view of a heat-sensitive variable element in the structure of FIG. 1, and FIG. 3 is an automatic fire extinguishing system according to the present invention. It is a sectional view showing the structure in other examples of equipment. In the figure, (1): container, (2): nozzle, (3): extinguishing agent, (4): cap, (5) double hole, (6): pulp,
(8): Operating rod, (9) Nilever, aQ=pedestal, (11
): Bearing, (12): Heat-sensitive variable element, (13):
Pull spring patent applicant: Kawada Kogyo Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) The pulp opening/closing mechanism of the extinguishing agent injection nozzle in a fire extinguisher placed at an arbitrary position in a room is held in a pulp-closed state by a heat-sensitive variable element, and the heat-sensitive variable element is deformed or Automatic fire extinguishing equipment that operates the valve opening/closing mechanism to open the valve by breaking the valve.