JPH083361Y2 - Trash with automatic fire extinguisher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a trash can with an automatic fire extinguisher provided with an automatic fire extinguisher in a dust port or the like.

“Prior Art” Conventionally, there is known a device in which a fire extinguisher is provided in a trash can, and when a fire occurs in the trash can, the fire extinguisher is driven to perform initial fire extinguishing. Further, an automatic fire extinguisher that drives the fire extinguisher based on a detection signal from a fire detector has been put into practical use.

"Problems to be solved by the invention" In the conventional trash can with a fire extinguisher, when the heat of a fire phenomenon is detected, the fire extinguisher is operated to release the extinguishing agent. Although such a trash can with a fire extinguisher is effective for extinguishing a fire that has advanced to a greater extent, it is effective for extinguishing a smoldered state such as a cigarette butt that was accidentally thrown into the trash can. It is not suitable, and once the fire extinguisher operates, there is a drawback that the trash can cannot be used immediately thereafter.

[Means for Solving the Problems] The trash can with an automatic fire extinguisher device according to the present invention includes a smoke detector for detecting smoke generated from a waste basket, a fire extinguisher device for spraying a fire extinguishing agent in the waste basket, and a waste container in the waste basket. An exhaust fan for exhausting accumulated smoke, and drive control of the fire extinguisher for a certain period of time based on the smoke detection signal of the smoke detector,
And a control unit that controls the drive of the exhaust fan for a predetermined time when the drive of the fire extinguisher is finished.

[Operation] Next, the operation of the present invention will be described.

The smoke generated from the trash can is detected and the initial fire is extinguished. After that, the exhaust fan is driven to exhaust the smoke, and the normal smoke monitoring state is restored. Then, if smoke is detected again, the fire extinguishing device is driven again, and the fire is extinguished according to the degree.

[Embodiment] FIG. 1 is a perspective view showing an embodiment of a trash can with an automatic fire extinguisher according to the present invention, FIG. 2 is a side view with a door for loading and unloading waste baskets and the like open, and FIG. FIG. 4 and FIG. 4 are plan views of the same.

The trash can of this embodiment has a dust port,
1 is the main body of the trash can, 2 is the trash input port, 3 is the trash input port 2
A lid that rotates in the center of the, 4 is an exhaust fan, 5 is a door for putting in and out the fire water tank together with the debris, 6 is a water quantity confirmation window for the fire water, 7 is a smoke sensor, 8 is a fire nozzle, 9 is fire,
A control unit for controlling exhaust gas, 10 is a pump, 11 is a fire extinguishing water tank, 12 is a waste basket, and 13 is a pipe. The nozzle 8, the pump 10, the fire extinguishing water tank 11 and the pipe 13 connecting them together constitute a fire extinguishing device.

This dust port type trash can has a lid 3 that rotates around the center.
By tilting, waste paper can be put into the waste basket 12 from the dust input port 2. Normally, the lid 3 is in a state in which the dust input port 2 is closed, so the butts that have not completely disappeared are thrown in. Even if it happens, it cannot be easily found from the outside, and there is a risk that the paper waste inside will be ignited and burned up, causing a fire. In such a case, the smoke sensor 7 detects the smoke generated from the butts, and outputs a detection signal to the control unit 9 when the smoke density is a predetermined value. When the control unit 9 receives this detection signal, it drives the pump 10 to drive the fire extinguishing water tank 11
Of water is sprayed from the nozzle 8 to the waste basket 12 through the pipe 13, and, for example, the amount of water required for extinguishing a cigarette (100 to 200 ml,
Watering time is about 10 seconds). When the operation of water sprinkling is completed, the control unit 9 drives the exhaust fan 4 to exhaust the smoke filled in the trash can (for about 15 seconds).

After performing this series of operations, the smoke sensor 7 is restored to the normal monitoring state. If more smoke is detected, this cycle will be repeated.

Further, the smoke detector 7 is preferably an ionization type smoke detector suitable for detecting smoke in the early stage of a fire. Also, when water is used as an extinguishing agent, the treatment after spraying is easy and
You don't have to do anything in sprinkling twice.

The type of extinguishant is not particularly limited to water, and normally used foams, powders, and other extinguishants may be used, but those that can be easily processed after the fire extinguisher operates. Is preferred.

Next, the relationship of control performed by the control unit 9 will be described based on the block diagram shown in FIG. 5 and the timing chart shown in FIG.

The smoke sensor 7 detects the detection signal A when the smoke density exceeds a predetermined value.
Is output to the control unit 9, and the detection signal A is output until it is restored. When the detection signal A (high level) is input, the control unit 9 supplies the power source B to the pump 10 for a certain period of time to drive it. When the supply of the power supply B is completed, the control unit 9 supplies the power supply C to the exhaust fan 4 for a predetermined time and drives it. When the supply of the power source C is completed, the smoke detector 7 is returned to the restoration signal D
Is output to restore the smoke sensor 7 and return to the normal monitoring state. In addition, the indicator lamp 91 is a display clear switch while the control unit 9 finishes controlling the pump 10 and the exhaust fan 4.
This is displayed (E) until 92 is operated to indicate that the fire extinguishing operation has been performed. Again, stop switch
93 is a switch for forcibly stopping the fire extinguishing operation, and the test switch 94 is for forcibly performing the fire extinguishing operation (driving the fire extinguishing device and the exhaust fan).

Further, the control unit 9 can be easily configured by a timer circuit or the like, and an analog type smoke detector is used,
When controlling the drive time of the fire extinguisher and the exhaust fan finely according to the smoke concentration, a control circuit is constructed using a microprocessor or the like.

"Effect of the device" As described above, the trash can with an automatic fire extinguisher device according to the present invention detects smoke caused by unburned cigarette butts and matchsticks by a smoke detector, and detects the smoke. Since the fire extinguishing device is driven for a certain period of time by the signal from the sensor, it is possible to extinguish the fire before the paper dust or the like in the trash box does not burn up. Furthermore, after the fire extinguisher is driven, the exhaust fan is driven for a predetermined time to exhaust the smoke, and then the normal monitoring state is restored, so when smoke is detected again after the fire extinguishing operation is performed, the smoke is detected again. The fire extinguisher operates, and the fire extinguishing operation is repeated until the fire is completely extinguished. Further, it is a trash can with an automatic fire extinguishing device, which is extremely useful in practice, such that there is no problem even if the trash can is used as it is for the fire extinguishing operation once or twice.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a trash can with an automatic fire extinguisher according to the present invention, FIG. 2 is a side view with a door for loading and unloading waste baskets open, and FIG. 3 is a front view of the same. The figure is the same plan view, FIG. 5 is a block diagram of the control unit, and FIG. 6 is a timing chart for explaining the operation of the control unit. DESCRIPTION OF SYMBOLS 1 ... Main body of trash can, 2 ... Garbage inlet 3 ... Lid, 4 ... Exhaust fan 5 ... Door, 6 ... Water amount confirmation window 7 ... Smoke detector, 8 ... Nozzle 9 ... Control part, 10 ... Pump 11 ... Fire extinguishing water tank , 12 ... Wastebasket 13 ... Pipe, 91 ... Indicator light 92 ... Display clear switch 93 ... Stop switch, 94 ... Test switch

Claims (1)

[Scope of utility model registration request] 1. A smoke detector for detecting smoke generated from a waste basket, and a fire extinguishing device for spraying a fire extinguisher into the waste basket.
An exhaust fan for exhausting smoke accumulated in the waste basket, and drive control of the fire extinguisher for a certain period of time based on the smoke detection signal of the smoke detector, and the exhaust fan is turned on in accordance with the end of driving of the fire extinguisher. A trash can with an automatic fire extinguisher, comprising a control unit that controls driving for a predetermined time.