JPH06197997A - Extinguisher for garbage box - Google Patents

Abstract

PURPOSE:To provide an extinguisher for a garbage box which achieves an extinguishing of a fire at an initial stage of generating smoke and enables continuous use with easier maintenance in the normal operation while by no means impairing a garbage collecting function. CONSTITUTION:This extinguisher for a garbage box is provided with a fire sensor 4 which is provided in a garbage box 1 to detect fire, an extinguishing agent container 2 which is provided in the garbage box 1 and holds an extinguishing agent and a nozzle 8 which is provided in the garbage box to jet the extinguishing agent to be supplied from the extinguishing agent container 2 into the garbage box and a pump 3 which is inserted between the extinguishing agent container 2 and the nozzle 8 and is driven to suck the extinguishing agent in response to the detection with the fire sensor 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing apparatus effective for a fire occurring in a public use area, for example, a trash can installed in a financial institution or a public hall, and particularly, in a trash can by throwing a cigarette or the like into the trash can. The present invention relates to a fire extinguisher for a trash can, which detects the generated smoke, ejects an extinguishing agent into the trash can only while the smoke is being detected, and then returns to a monitoring state.

[0002]

2. Description of the Related Art Conventionally, a trash box installed in a public use area or a public building is inadvertently burned into paper scraps or the like in the trash box due to the fact that it is used by an unspecified number of people and carelessly throwing in a cigarette, etc. Various fire extinguishing devices for the fire in the trash box have been proposed in consideration of the possibility that the above may occur. However, many of these conventionally proposed fire extinguishers have not reached the stage of practical application.

[0003]

The reason for this is that the conventional fire extinguishing system installs a fire extinguisher cylinder or the like in the trash can and uses it to release the extinguishing agent until the cylinder is empty, depending on the scale of the fire. Considering that it will be extremely expensive due to excessive discharge, and if it causes a malfunction due to non-fire, it will take time and money to replace the cylinder, etc.To prevent this malfunction, a heat sensor is used to detect the fire. Therefore, there is a disadvantage that the fire cannot be extinguished in the early stage of the fire, that is, in the initial stage where only the smoke is generated without the temperature inside the trash box rising.

Therefore, an object of the present invention is to eliminate the drawbacks of the conventional fire extinguishing apparatus applied to the trash box, and to reduce the cost.
The fire extinguishing device for the trash can be provided so that the fire can be extinguished in the early smoke generation stage of the fire, and the maintenance during normal operation is extremely easy and can be continuously used, and the trash collection function is not impaired. It is a thing.

[0005]

According to the present invention, in view of the above-mentioned object of the present invention, in a fire extinguisher for extinguishing a fire generated in a trash box or the like, a fire which is placed in the trash box to prevent a fire is generated. A fire detector for detection, a fire extinguisher container that is placed in the trash box and stores a fire extinguishing agent, and a nozzle that is attached to the inside of the trash box and ejects the fire extinguishing agent supplied from the fire extinguishing agent container. The present invention provides a fire extinguisher device for a trash can, which is provided between the fire extinguisher container and a nozzle and has a pump for sucking up and driving the fire extinguisher when the fire detector detects a fire.

[0006]

According to the above construction, the extinguishant spray nozzle responds to the fire detector to spray the extinguishant according to the pump drive, so that it is possible to extinguish the komi box even in the initial stage of the fire. is there.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a trash box fire extinguishing apparatus according to the present invention, and FIG. 2 is a schematic view of electric wiring showing a connection relationship between the apparatus and a power source and a signal line.

In FIG. 1, this figure shows the positional relationship of the respective functional parts when the fire extinguisher is installed inside the trash can. In the fire extinguisher, 1 is a trash can, which has a trash input port 11 and a trash recovery door 12, and has a trash storage area of a desired volume inside. An extinguishant storage tank 2 for extinguishing solution or water is provided in the trash box 1, and an extinguishant supply port 2 is provided.
1 and a scale 22 showing the content volume. Inside the trash can 1, a pump 3 for pumping fire extinguishing agent from the tank 2
Is provided and the pump 3 has an inlet 31 and an outlet 32.

[0009] Now, according to the embodiment of the present invention, the trash can 1
A smoke detector, preferably a battery-powered smoke detector 4 for detecting smoke generation associated with a fire such as dust ignition or smoldering
When the smoke detector 4 detects smoke, the pump power source contact 41 (FIG. 2) is turned on. The pump power source contact 41 is connected to the switching power source 5, and the switching power source 5 is an alternating current from an external commercial power source (not shown) via a commercial power source line 42.
A wiring system is provided for supplying 100V, converting it to DC 12V, and supplying DC 12V as the pump starting power from the pump power supply connection portion 33 of the pump 3 via the contact 41 to the power supply line 7. Has been. A nozzle 8 for ejecting a fire extinguishing agent is attached to the optimum position in the trash box 1.
Is connected to the pump 3 through a metal pipe 9 which is an extinguishant pipe, and is jetted in accordance with the supply of the extinguishant.

Next, the operation of the fire extinguisher for the trash can of this embodiment will be described. Tobacco etc. is carelessly thrown into the trash box 1 through the trash box 12 and the like.
If there is smoke associated with ignition or smoldering inside, trash can 1
The smoke detector 4 senses the smoke generated therein, and when the concentration of smoke filled in the trash box 1 reaches a certain level or higher, the smoke detector 4 causes a buzzer (not shown) to ring and a power source contact 41 for pump starting. Turn on. When the power contact 41 is turned on, 12 V DC is supplied from the switching power supply 5 to the pump 3 via the power line 7. The pump 3 is started by the supply of DC 12V, sucks up the extinguishing agent in the tank 3 through the suction hole 31, and ejects the extinguishing agent in a spray form from the discharge hole 32 through the pipe 9 and the nozzle 8.

When the fire is extinguished by the ejection of the extinguishing agent and the generation of smoke stops and the smoke in the trash falls below a certain level, the buzzer stops ringing and the smoke detector 4 turns off the contact 41. As a result, the supply of 12 V DC to the pump 3 is cut off. As a result, the pump 3 is stopped, and hence the ejection of the nozzle 8 is stopped along with the stop of the supply of the extinguishant. After that, the fire extinguisher is put into the fire monitoring system again. next,
The normal maintenance of the fire extinguisher will be described.

The present fire extinguisher detects the generation of smoke that indicates ignition or smoldering in the trash box 1 and, even after the fire extinguishing agent is once jetted by the above-described action process to extinguish the fire, the fire extinguishing agent remains in the tank 2. If remains, it can be used continuously.
The maintenance person visually confirms the capacity of the extinguishant by visually checking the memory of the tank 2 for storing the extinguishant, and if the amount of the extinguishant is below a predetermined amount, the extinguishant is replenished from the replenishing port 21.

In the present embodiment, the transfer contact of the smoke detector 4 is the power supply contact 41 for starting the pump, but as another embodiment, the relay is driven by the transfer of the smoke detector 4 to drive the pump. The power switch No. 3 may be turned on.

[0014]

According to the present invention, a fire occurring in a trash can can be extinguished at an early stage.
It is possible to prevent the emission of smoke from the trash. Also,
If the fire extinguishing agent is replenished on a regular basis or according to a daily inspection, it can be used repeatedly and continuously, so that maintenance is extremely easy and the cost is low.

[Brief description of drawings]

FIG. 1 shows a configuration of a fire extinguisher for a trash can according to the present invention,
It is a perspective view showing a fire extinguishing system by jetting and spraying a fire extinguishing agent.

FIG. 2 is an electric wiring diagram of the fire extinguisher.

[Explanation of symbols]

 1 ... Trash box 2 ... Extinguishant storage tank 3 ... Pump 4 ... Smoke detector 5 ... Switching power supply 6 ... Power supply line 7 ... Power supply line 8 ... Nozzle 9 ... Extinguishant pipe 11 ... Dust input port 12 ... Dust collection port

Front page continuation (72) Inventor Masanori Kajita 6-11-23, Shimorenjaku, Mitaka-shi, Tokyo In Secom Co., Ltd. (72) Inventor Atsushi Miwa 6-11-23, Shimorenjaku, Mitaka-shi, Tokyo In Secom Co., Ltd.

Claims (2)

[Claims] 1. A fire extinguisher for extinguishing a fire that has occurred in a trash box or the like, and a fire detector that is arranged in the trash box and detects a fire that has occurred; and a fire detector that is arranged in the trash box and stores an extinguishing agent. Extinguishant container, a nozzle for ejecting the extinguishant supplied from the extinguishant container that is attached inside the trash box, and the fire detection device that is inserted between the extinguishant container and the nozzle. A fire extinguisher for a trash can, comprising a pump that sucks up and drives a fire extinguisher when the container detects a fire. 2. The fire extinguisher for a trash can according to claim 1, wherein the fire detector is a smoke detector for detecting smoke generated in the trash can.