JP3746589B2 - Fire-fighting equipment for moving walkways - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire-fighting / extinguishing device for a moving sidewalk. More particularly, the present invention relates to a fire prevention / extinguishing apparatus on a moving sidewalk that carries an unspecified number of people.
[0002]
[Prior art]
As a conventional fire extinguishing apparatus relating to a moving sidewalk, there are those described in Japanese Patent Laid-Open Nos. 51-38797 and 4-112184 (Conventional Example I). This conventional example I is a technique for driving a fire extinguishing device to extinguish a fire when a fire occurs, and does not have a function of preventing a fire on a moving sidewalk.
The device (conventional example II) described in Japanese Utility Model Laid-Open No. 64-47774 is intended for fire prevention, but only considers fire prevention and extinguishing at the entrance. That is, the entrance side is generally located at a lower height than the exit side, and an oil pan that collects oil collected from various parts of the mechanism on the moving sidewalk is also located on the entrance side. This is because it is configured to prevent fire from the oil pan.
[0003]
[Problems to be solved by the invention]
However, on the moving sidewalk, dust tends to accumulate on the exit side. In other words, the dust brought in by the passengers with shoes or luggage is carried on a belt, and the belt is wound around the exit-side pulley and rotates to change its direction and easily falls downward. And if the cigarette butt falls on the dust accumulated there, the dust is ignited at once, and there is a problem that a large fire is likely to occur because there is lubricating oil for the machine part in the vicinity.
However, in the conventional example, it is impossible to prevent fire on the exit side where a fire easily occurs.
[0004]
In view of such circumstances, an object of the present invention is to provide a fire-extinguishing / extinguishing apparatus that can prevent a fire on the exit side of a moving sidewalk and can also effectively extinguish a fire when a fire occurs.
[0005]
[Means for Solving the Problems]
The fire-fighting / extinguishing apparatus according to the present invention is a moving sidewalk that conveys a person by circulating a tread belt that is looped between the exit-side pulley and the entrance-side pulley. The brush touches the outer peripheral surface of the tread belt, scrapes dust, puts the dust on the upper surface and then drops downward, a dust box for storing the dust dropped from the brush, and water is sprayed on the upper surface of the brush. A sprinkler, a smoke detector that detects the occurrence of fire and smoke in the vicinity of the exit side pulley of the dust box, brush, and the like, and when the smoke detector does not output a smoke detection signal, periodically a small amount It is characterized by comprising a control device for controlling the water sprinkler so that water is sprinkled on the brush and a large amount of water is sprinkled on the brush when a smoke detection signal is output.
In the present invention, the dust is moistened by the water sprayed on the brush at all times, so that it is difficult for a fire to occur and is useful for fire prevention. If a fire still occurs, the smoke detector is detected. Since a large amount of water is sprinkled from the sprinkler, the fire can be effectively extinguished at the beginning of the fire.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
1 is an enlarged side view of a main part of the fire-extinguishing and extinguishing apparatus of the present embodiment, FIG. 2 is a side view of the fire-extinguishing and extinguishing apparatus, FIG. 3 is a plan view of the fire-extinguishing and extinguishing apparatus, FIG. 4 is a block diagram of the control apparatus, and FIG. Is an overall side view of a moving walkway.
[0007]
First, the basic configuration of the moving sidewalk M will be described with reference to FIG. Reference numeral 1 denotes an endless tread belt that is wound around the entrance-side pulley 2 and the exit-side pulley 3 and is driven to circulate by a drive unit 4 installed in the exit-side pit 8. Reference numeral 5 denotes a moving handrail. An endless handrail belt 6 circulates along the handrail wall 7 and moves at the same speed as the tread belt 1. In addition, 9 is a entrance pit.
[0008]
Next, the structure on the exit side and the basic structure of the fire prevention / extinguishing device in the moving sidewalk M will be described.
As shown in FIGS. 1 to 3, a brush 10 having a width substantially the same as the width direction of the tread belt 1 so as to abut on the outer peripheral surface of the tread belt 1 at a portion wound around the down pulley 3. Are provided in the horizontal direction. A dust box 20 is disposed below the brush 10. The dust box 20 stores dust d scraped from the tread belt 1 by the brush 10. Reference numeral 16 denotes a plate attached so as not to spill dust.
[0009]
In addition, a water tank 34 and a pump (not shown) of the fire prevention and fire extinguishing device are disposed, and the water spray pipe 32 for spraying water on the upper surface of the brush 10 and the water tank 34 are communicated with each other by a communication pipe 33.
Reference numeral 15 denotes a comb, which substantially abuts the tread belt 1 passing through the upper surface of the exit-side pulley 3 to guide the transfer of people.
[0010]
Next, details of the fire prevention and extinguishing apparatus will be described with reference to FIGS.
The brush 10 is for scraping off the dust d adhering to the tread belt 1, and is attached to the upper edge of the horizontal brush attachment plate 11. The lower edge of the brush mounting plate 11 is attached to a horizontal L-shaped steel 12. Side support plates 13 and 13 are attached to both ends of the L-shaped steel 12, respectively. The left and right side support plates 13 and 13 are supported by the side support plates 14 and 14, respectively.
In the figure, the brush 10 is supported by a brush mounting plate 11, an L-shaped steel 12, a side support plate 13, and a side support plate 14, but the portion of the tread belt that is wound around the exit-side pulley 3. The mechanical configuration for supporting the brush 10 is not particularly limited as long as it is disposed so as to abut on the outer peripheral surface of 1.
[0011]
Further, the brush 10 is disposed with its tip directed obliquely upward. For this reason, the brush 10 can scrape off the dust d adhering to the tread belt 1, put the dust d on the upper surface of the brush 10, and then drop it downward.
In addition, although the brush 10 is arrange | positioned toward diagonally upward, the angle is not specifically limited.
[0012]
Next, a watering device 30 that sprays water on the upper surface of the brush 10 will be described.
A horizontal watering pipe 32 is disposed obliquely above the brush 10. In the water spray pipe 32, a plurality of injection holes are formed at intervals along the longitudinal direction and toward the brush 10. One end of the watering pipe 32 is closed, and the other end is connected to the connecting pipe 33 through the connector as described above. For this reason, the water in the water tank 34 can be sprinkled from all the injection holes of the sprinkling pipe 32 toward the brush 10 by a pump 35 (not shown).
[0013]
As shown in FIG. 2, a smoke detector 40 is attached to the inner ceiling of the descending pit 8 above the brush 10. The smoke detector 40 detects smoke and fire in the brush 10 and the dust box 20 and transmits a smoke detection signal to the control device 41 described later.
[0014]
Next, the control device 41 will be described.
As shown in FIG. 4, the smoke detector 40 is connected to the input port of the control device 41, and the drive motor 36 of the pump 35 is connected to the output port of the control device 41 via the drive circuit 42. .
When the smoke detector 40 does not output a smoke detection signal, the control device 41 controls the water sprinkler 30 so that a small amount of water is periodically sprayed on the brush 10, and the smoke detector 40 outputs the smoke detection signal. When it comes out, the control device 41 controls the watering device 30 so as to spray a large amount of water on the brush 10.
For example, as a regular watering, a water amount of 21 cc is sprinkled for about 5 seconds every 3 hours. In addition, it is good to change the watering interval or the amount of water depending on the size of the water tank.
[0015]
Next, the operation and effect of the fire-fighting / extinguishing apparatus for moving walkways according to this embodiment will be described.
While the moving sidewalk M is in operation, that is, while the tread belt 1 is running, the brush 10 always scrapes off the dust d adhering to the tread belt 1 and puts the dust d on the upper surface of the brush 10 and then drops downward. Can be made. Since the dust d accumulates in the dust box 20, it is usually sufficient to periodically remove the dust d from the dust box 20.
[0016]
At all times, that is, when the smoke detector 40 does not issue a smoke detection signal, the control device 41 controls the water spray device 30 so that a small amount of water is sprayed on the brush 10 periodically. For this reason, since the dust on the brush 10 and its upper surface, and further, the dust in the dust box 20 is damp, there is an effect that a fire on the exit side of the moving sidewalk M can be prevented.
[0017]
If a fire occurs for some reason, such as a cigarette butt, smoke is generated in the brush 10 or dust box. For this reason, the smoke detector 40 detects this smoke, and the smoke detector 40 transmits a smoke detection signal to the control device 41. The control device 41 that has received the smoke detection signal controls the water spray device 30 so as to spray a large amount of water on the brush 10. For this reason, even if a fire occurs on the exit side of the moving sidewalk M, the fire can be extinguished.
[0018]
【The invention's effect】
According to the fire prevention and extinguishing device for a moving sidewalk according to claim 1, it is possible to prevent a fire on the exit side of the moving sidewalk by regularly spraying the brush, and the fire extinguishing in the event of a fire is also effective by a large amount of watering. Yes.
[Brief description of the drawings]
FIG. 1 is an enlarged side view of an essential part of a fire-fighting / extinguishing apparatus for a moving sidewalk according to an embodiment of the present invention.
FIG. 2 is a side view of a fire-fighting / extinguishing apparatus for a moving sidewalk according to the present embodiment.
FIG. 3 is a plan view of a fire-extinguishing / extinguishing apparatus for a moving sidewalk according to the present embodiment.
FIG. 4 is a block diagram of a control device of the present embodiment.
FIG. 5 is an overall side view of a moving sidewalk M according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tread belt 2 Pullway side pulley 3 Exit gate pulley 10 Brush 20 Dust box 30 Sprinkler 40 Smoke detector 41 Control device d Dust M Moving walk

Claims (1)

In a moving sidewalk that conveys people by circulating a tread belt that hangs between the exit side pulley and the entrance side pulley,
A brush that abuts against the outer peripheral surface of the tread belt at the part wound around the exit pulley, scrapes dust, puts the dust on the upper surface, and then drops downward;
A dust box for collecting dust falling from the brush;
A watering device for watering the upper surface of the brush;
A smoke detector that detects the occurrence of fire and smoke near the exit side pulley of the dust box, brush, etc.,
When the smoke detector does not emit a smoke detection signal, a small amount of water is regularly sprayed onto the brush, and when a smoke detection signal is output, the water sprinkler is configured to spray a large amount of water onto the brush. A fire-fighting / extinguishing device for a moving sidewalk characterized by comprising a control device for controlling the vehicle.

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