JPH09326091A - Fire preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of a fire caused by kindling brought into a building 1 with baggage. SOLUTION: A fire preventing device is arranged at the carrying entrance of the building and is provided with both side wall parts 6, 7 and a ceiling part 8 to be in the form of a gate. The ceiling part 8 is provided with an air take-in part 10 taking in air around passing baggage and a smoke detector 15 by facing the part 10. By this constitution, when baggage passes through the fire preventing device, air around baggage is taken into the part 10 and the smoke detector 15 detects the existence of smoke. As the result of this, kindling within baggage is detected at the carrying entrance of the building to prevent the kindling from being carried into the building to prevent a fire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention device suitable for use in a building such as an unmanned automatic warehouse for storing luggage.

[0002]

2. Description of the Related Art In buildings such as warehouses for storing luggage, smoke detectors are provided in the buildings in order to prevent the occurrence of fire. This smoke detection device is usually designed to notify the occurrence of a fire by detecting the smoke by blinking an alarm lamp or ringing an alarm buzzer. The worker performs fire extinguishing work by the alarm of the smoke detection device.

There is also generally known a fire extinguishing system in which a fire extinguishing device is arranged in a building together with the smoke detecting device, and the fire extinguishing device extinguishes the fire in conjunction with detection of a fire occurrence in the smoke detecting device.

[0004]

By the way, some types of fires in a building are generated by the fire that is brought in from outside with luggage. In this case, it is often not possible to discover the ignition source until the smoke detection device detects the generation of smoke in the building. That is, the smoke detection device cannot detect a fire unless the cargo containing the fire is carried into the warehouse and the warehouse is filled with smoke or the fire does not spread to some extent.

Therefore, although the conventional smoke detection device can detect and extinguish a fire before it becomes large,
There is a problem that it is impossible to prevent the occurrence of fire.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a fire preventive device capable of preventing the occurrence of a fire due to the introduction of a fire from the outside. It is a thing.

[0007]

In order to solve such a problem, the fire prevention device according to the first invention is arranged so as to face the carry-in route of the luggage carried in from the building entrance. The present invention is characterized in that it is provided with a fire type detection means for detecting the presence or absence of a fire type in the carried-in luggage.

With this construction, the package passes through the fire type detection means when being carried in from the building entrance. At this time, if there is a fire in the package, the fire detection means detects the fire. This prevents a load with a fire from being carried into the building.

A fire prevention device according to a second aspect of the present invention is arranged so as to face a loading path of a load to be loaded into a building from an entrance of a building, and detects the presence or absence of a spark in the load to be loaded. A detecting means and a fire extinguishing means which is provided continuously to the fire type detecting means in a state of facing the carry-in route and performs a fire extinguishing operation when the fire type detecting means detects a fire type in the luggage. Characterize.

With this structure, when the fire type detecting means detects the fire type when the load is carried into the building, the fire extinguishing means is immediately activated to extinguish the fire type in the load. This prevents a load with a fire from being carried into the building.

In the fire prevention device according to the third aspect of the present invention, the fire type detecting means is constructed by using a smoke detector for detecting smoke generated by the fire type or an infrared detector for detecting heat generated by the fire type. And

[0012] With this, if even a slight amount of fire is generated in the luggage, the smoke detector detects the smoke and reliably prevents the fire from being brought into the building. Further, if the luggage generates heat due to the fire, the infrared detector detects the heat and prevents the fire from being brought into the building.

A fire prevention device according to a fourth aspect of the present invention is arranged so as to face a loading path of a load that is loaded into a building from a loading port, and is provided with both side wall portions and a ceiling portion in a gate shape. In addition to being configured, an air intake portion for taking in air around the passing luggage is provided on either the side wall portion or the ceiling portion, and a smoke detection portion is provided so as to face the air intake portion. Is characterized by.

As a result, the luggage is carried into the building through the fire prevention device having a gate-like structure. At this time,
The air around the baggage is taken into the air intake, and the smoke detector detects the presence of smoke. When a package has a fire, it usually produces a small amount of smoke, even if it is unknown to humans. Therefore, by directly taking in the air around the luggage and detecting the presence or absence of smoke, the presence or absence of the fire can be detected more accurately and reliably.

In the fire prevention device according to a fifth aspect of the present invention, the air intake portion is provided so as to extend over the both side wall portions and the ceiling portion and both side wall portions, and the air intake portion and the both side wall portions and the ceiling portion are interlocked with each other. It is composed of a shielding plate that captures smoke that rises up, and a package shape detection means that detects the package shape of passing goods, and an abnormality in the package shape detection means or the smoke detection part when carrying in the cargo. And a carrying-in means for stopping the carrying-in of the luggage when the detection is made.

By constructing the air intake section with the both side wall sections, the ceiling section and the shielding plate, the rising smoke can be taken in as it is, and the smoke can be detected efficiently. In addition, the package shape detection means can detect the package shape of a package passing through the fire prevention device and can detect the presence or absence of a collapse of the package. Further, when the package shape detecting means or the smoke detecting section detects an abnormality such as a collapse of the load or smoke, the loading means stops the loading of the cargo. As a result, it is possible to prevent a load that has collapsed or a load including a fire from being carried into the building.

[0017]

DETAILED DESCRIPTION OF THE INVENTION A fire prevention device according to the present invention will be described below with reference to the accompanying drawings.

The fire prevention device according to the present embodiment is arranged so as to face the carry-in route of the luggage carried into the building. Specifically, it is arranged so as to face the entrance of the building. Examples of the building include a warehouse for loading and storing luggage, a factory for processing, and a ship for transportation.
Here, as an example, an unmanned automatic warehouse in which management of loading, storage, and unloading of luggage is automatically performed by a robot will be described as an example of a building.

As shown in FIG. 2, this automated warehouse has a plurality of shelving units 2 arranged in parallel inside a building 1 and each shelving unit 2.
A robot 3 which is arranged between the storages and stores the luggage from the outside in the shelf ridge 2 and takes out the luggage in the shelf ridge 2 to the outside.
And a transport robot 4 that transports a package loaded from the loading port 1A of the building 1 to the loading / unloading robot 3 and transports a package loaded from the shelf ridge 2 by the loading / unloading robot 3 to the loading port 1B. There is. In this building 1, a smoke detection device and a fire extinguishing device (neither is shown) similar to the conventional one are provided. The loading / unloading robot 3, the transfer robot 4, the smoke detection device, and the fire extinguishing device are controlled by a control device (not shown).

At the carry-in entrance 1A of the building 1, there is provided a fire type detecting device 5 as a fire type detecting means for detecting the presence or absence of a fire type in the carried-in luggage. As shown in FIG. 1, the fire type detection device 5 is configured in a gate shape that communicates with the carry-in port 1A. That is, it is configured in a gate shape by including the side wall portions 6 and 7 partitioning both sides and the ceiling portion 8 partitioning the upper side. The ceiling portion 8 is formed in a mountain shape. A shield plate 9 (only the front shield plate is shown in FIG. 1) is provided in front of and behind the ceiling portion 8. The mountain-shaped ceiling portion 8, the side wall portions 6 and 7 on both sides, and the front and rear shield plates 9 form an air intake portion 10 that takes in the air around the passing luggage. An exhaust port 11 and an exhaust fan 1 are provided at the top of the mountain-shaped ceiling portion 8.
2 are provided. Then, the exhaust fan 12 discharges the air in the air intake portion 10 to the outside from the exhaust port 11, so that the air in the fire type detecting device 5 (the air existing around the load passing through the fire type detecting device 5 exists The smoke-containing air from the baggage) is efficiently taken into the air intake section 10.

A smoke detector 15 is provided on the side wall portion 6. The smoke detector 15 has a main body portion 16 installed facing the side wall portion 6, a body portion 16 extending from the main body portion 16 into the air intake portion 10, and a front end portion thereof being exposed to the air intake portion 10. And the pipe 17 arranged in this state.
The main body 16 includes a fan (not shown) that sucks the air in the air intake unit 10 through the pipe 17, and a smoke detector (not shown) that detects fine particles of smoke from the air sucked by the fan. ) And is configured. Thereby, the air in the air intake portion 10 is sucked into the main body portion 16 by the fan through the pipe 17, and the presence or absence of smoke is detected by the smoke detection portion in the main body portion 16 with ultra-high sensitivity. It has become so. Further, the main body 16 is provided with an alarm function so that an alarm is issued when smoke is detected. Further, the main body 16 is connected to the control device that controls the transfer robot 4 and the like by wire or wirelessly. This control device stops the transfer robot 4 by detecting smoke in the main body 16 so that a load including a fire is not carried into the interior of the building 1.

A roller conveyor 18 is provided in the gate-shaped fire type detection device 5. The luggage is mounted on the roller conveyor 18 and passes through the fire type detection device 5 to detect the presence or absence of the fire type.

[Operation] The fire prevention device configured as described above operates as follows.

The loading / unloading work of the luggage in the building 1 is controlled by the control device. Specifically, the luggage carried in from the outside is carried into the inside of the building 1 via the carry-in entrance 1A, passes through the fire type detection device 5, and is delivered to the transfer robot 4. The transfer robot 4 delivers the received package to the designated take-in / out robot 3, and the take-in / out robot 3 stores the received package in the shelf in the designated shelf ridge 2.

Further, when taking out the luggage stored in the shelves of the shelf ridge 2, contrary to the above case, the taking-in / out robot 3 takes out the luggage from the specific shelf in the designated shelf ridge 2 and transport robot. Pass to 4. The transfer robot 4 transfers the delivered baggage to the carry-out port 1B. And carry-out port 1
It is taken out from B.

Each of the above-mentioned packages passes through the fire type detecting device 5 when being carried in. The fire type detecting device 5 detects whether there is a fire type in the passing package. Specifically, the load is put on the roller conveyor 18 and passed through the fire type detection device 5. At this time, the exhaust fan 12 of the fire type detection device 5 rotates, and the air in the air intake portion 10 is discharged to the outside from the exhaust port 11. Along with this, the air in the fire type detection device 5 flows into the air intake section 10. As a result, the air around the passing luggage is taken into the air intake portion 10.

In the air intake section 10, the air taken in is sucked into the smoke detector 15. Specifically, the air in the air intake unit 10 is sucked through the pipe 17 by the fan in the smoke detector 15. The sucked air is the main body 1
The smoke detection unit 6 detects with high sensitivity whether smoke particles are mixed in the air.

At this time, if the mixture of smoke is detected, an alarm function warns that a load including a fire is brought into the building 1. At the same time, the transfer robot 4 is stopped by the control device to prevent the luggage from being carried into the back of the building 1. Then, the worker performs the fire extinguishing activity by identifying the package including the fire.

[Effect] As described above, even when a load containing a fire is brought into the building 1 from the outside, the fire is detected by the fire detection device 5 and prevented from being stored in the shelf 2. Therefore, it is possible to prevent a fire from occurring and improve the safety of the automated warehouse.

Further, in the fire type detection device 5, since the air intake portion 10 is provided directly above the parcel passing therethrough to collect the air around the parcel, when smoke is mixed in the air around the parcel, Allows smoke to be efficiently collected before being diffused and diluted. As a result, even a small amount of smoke generated from the luggage can be efficiently collected. As a result, even a small fire type can be reliably detected, and a fire can be prevented from occurring.

[First Modification] In the above embodiment, the fire type detection device 5 is configured to have only the smoke detection function, but it may be provided with the smoke detection function and the extinguishing function. Specifically, as shown in FIG. 3, the fire extinguishing device 21 may be provided after the fire type detecting device 5. This fire extinguisher 21
Similar to the fire type detection device 5, a fire extinguishing agent injection device (not shown) that blows out water for extinguishing a fire, extinguishing gas, chemical extinguishing agent, etc., is built in like a gate. This extinguishant injection device is connected to the smoke detector 15 of the fire type detection device 5,
When smoke is detected by the smoke detector 15, fire extinguishing work is performed in conjunction with it.

As a result, when the smoke detector 15 detects a fire, the fire extinguishing agent injection device is immediately activated to extinguish the fire in the luggage and prevent the fire from being carried into the building 1.

As a result, even small fires are not brought into the building 1, and it is possible to prevent a fire from occurring.

[Second Modification] In the above embodiment, the fire type detection device 5 is constructed by using the smoke detector 15 for detecting the presence or absence of smoke. However, an infrared detector for detecting the heat generated by the fire type (see FIG. (Not shown) may be used. An infrared sensor, an infrared camera, or the like is used as the infrared detector.
The presence or absence of a fire type is detected using this infrared detector, and when a fire type is detected in the luggage, an alarm is issued or the transfer robot 4 is stopped, as in the above embodiment.

Since this infrared detector detects the heat generated by the spark in the package, it can detect the spark even when the smoke has not yet generated smoke. As a result, it is possible to more reliably prevent the fire from being brought into the building.

When using this infrared detector,
The air intake unit 10, the exhaust port 11, the exhaust fan 12 and the like are unnecessary. Further, the fire extinguisher 21 of the first modified example may be integrally provided.

Since the light generated by heat includes not only infrared rays but also ultraviolet rays, an ultraviolet ray detector may be used instead of the infrared ray detector.

[Other Modifications] (1) In the above embodiment, only the presence / absence of a fire is detected by the fire detection device 5, but a package shape detection means may be provided. That is, a package shape detection unit that detects the package shape of a package passing through the fire type detection device 5 and detects the presence or absence of a collapse of the package may be provided. As the package shape detection means, specifically, a method of detecting the width of the package by a contact type or non-contact type sensor and determining that the package is collapsed if the width is abnormal, There is a method in which the contour is captured as an image, and if there is an abnormality in comparison with a preset contour, it is determined that a load collapse has occurred.

The package form detecting means detects the package form of the package passing through the fire type detecting device 5 to detect whether or not the package collapse has occurred. If the cargo has collapsed, stop loading the cargo.

(2) In the fire type detection device 5, a carry-in device such as a carry-in device for continuously carrying in the cargo at a constant interval may be provided upstream of the flow of the cargo. This carrying-in means
The package shape detection means and the fire type detection means are connected to each other, and when the load collapse or the fire type is detected, the loading of the luggage is stopped. As a result, luggage that has collapsed or luggage that contains fire is carried into the building,
It can be surely prevented.

(3) In the above embodiment and each modification,
Although the fire type detection device 5 has an alarm function and is connected to the control device so that the transfer robot 4 works together, it is also possible to issue only an alarm by smoke detection without connecting to the control device. Further, the fire type detection device 5 may be connected to the control device in the building 1 in a wired or wireless manner so as not to have an alarm function, and may be linked with these.

Further, the fire type detection device 5 is configured so that it can be carried as a single unit, and the carry-in port 1 at a required position when needed.
It may be installed in A and used. in this case,
As described above, the fire type detection device 5 may be connected to and interlocked with the control device, or may be operated independently.

(4) In the above embodiment, the fire type detection device 5 is arranged facing the inside of the carry-in port 1A of the building 1, but it goes without saying that it may be arranged outside.

Further, it may be arranged so as to be in close contact with the carry-in entrance 1A or may be arranged at a certain distance from the carry-in entrance 1A. In the case where a certain distance is provided, it is arranged so as to face the carry-in entrance 1A and face the carrying path of the luggage inside and outside the building 1.

Further, when the fire type detection device 5 is installed in the building 1, it may be installed in the transfer route from the carry-in port 1A to the loading / unloading robot 3.

In these cases as well, the presence or absence of a fire type can be reliably detected by the fire type detection device 5, and the same effect as the above-described embodiment can be obtained.

(5) In the above-described embodiment, the air intake portion 10 of the fire type detection device 5 is provided on the ceiling portion 8. However, the air intake portion 10 is not limited to the ceiling portion 8 and the side wall portions 6 and 7 are provided. You may provide in one or both.

(6) In the above embodiment, the automatic warehouse was described as an example of a building, but even in a factory or a ship,
The fire prevention device of the present invention can be used. In other words, even in the case of a factory that carries in luggage such as parts and processes it with a robot, or a ship that loads and transports luggage,
By using the fire prevention device of the present invention in the carry-in port 1A, the same operation and effect as those of the above-described embodiment can be obtained.

(7) As a transportation means to the building 1,
There are various means such as a truck, a transfer robot, an unmanned or manned transfer vehicle, and a belt conveyor. Also, in the building 1, as the transfer means from the carry-in entrance 1A to the loading / unloading robot 3, not only the transfer robot 4, but also various transfer means such as the unmanned or manned transfer vehicle and the belt conveyor can be used.

[0050]

As described above, according to the present invention, the following effects can be obtained.

(1) Even if a load containing a fire is brought into the building from the outside, the fire can be detected by the fire detecting means and can be prevented from being stored in the building. Can be prevented in advance, and the safety of the building can be improved.

(2) Since the fire type detecting means is arranged so as to face the load-carrying-in route, even a small amount of smoke generated from the load can be efficiently detected. As a result,
Even small fire types can be detected reliably, and fires can be prevented from occurring.

(3) The fire type is detected by the fire type detecting means because the fire type detecting means for detecting the presence or absence of the fire type in the carried-in baggage and the fire extinguishing means for performing the fire extinguishing work in conjunction with the fire type detecting means are provided. Sometimes the fire extinguishing system is activated immediately,
It is possible to surely extinguish the fire in the luggage. This allows
It becomes possible to prevent a fire from occurring.

(4) When the smoke detector for detecting smoke generated by the fire is used as the fire detecting means, if the smoke in the luggage emits even a small amount of smoke, the smoke detector detects the smoke. As a result, it is possible to reliably prevent the fire from being brought into the building.

When an infrared detector for detecting the heat generated by the fire is used as the fire detecting means, the infrared detector detects the heat generated by the fire in the package, and no smoke is generated yet. The fire type can be detected even at the stage, and the fire type can be more reliably prevented from being brought into the structure.

(5) Since the fire prevention device has a gate-like structure with both side walls and the ceiling, and the air intake and smoke detector are provided on either the side wall or the ceiling. When the luggage passes through the fire prevention device, the air around the luggage can be taken in by the air intake section as it is. Thereby, the smoke mixed in the air taken into the air intake portion is taken into the air intake portion without being diluted so much, that is, in a state where it is not diffused into the air so much. As a result, even if the amount of smoke generated from the package is small, the smoke detection unit can accurately detect smoke.

(6) Since the package shape detecting means is provided, depending on whether or not there is an abnormality in the package shape of the package passing through the fire prevention device,
The presence or absence of load collapse can be detected. As a result, it is possible to reliably prevent the loading of the cargo whose collapse has occurred.

(7) Since the carrying-in means is provided, it becomes possible to surely stop the carrying-in of the cargo when an abnormality is detected by the package shape detecting means or the smoke detecting section.

[Brief description of drawings]

FIG. 1 is a perspective view showing a fire prevention device according to the present invention.

FIG. 2 is a schematic perspective view showing an automated warehouse equipped with a fire prevention device according to the present invention.

FIG. 3 is a perspective view showing a modified example of the fire prevention device according to the present invention.

[Explanation of symbols]

1: Building, 2: Shelf, 3: Robot for taking in / out, 4: Robot for transportation, 5: Fire type detection device, 6, 7: Side wall part, 8: Ceiling part, 9: Shielding plate, 10: Air intake part, 11 :exhaust port,
12: exhaust fan, 15: smoke detector, 16: body part, 1
7: piping, 21: fire extinguisher.

Claims (5)

[Claims] 1. A fire type detection means, which is disposed so as to face a load-in route of a load to be loaded into a building from an entrance of a building, for detecting the presence or absence of a fire in the load to be loaded. Fire prevention device characterized by. 2. A fire type detection unit, which is disposed so as to face a load-carrying-in route of a load to be carried in from a carry-in entrance of the building, and detects the presence or absence of a fire-type in the load-carrying-in. A fire prevention device comprising: a fire extinguishing means which is provided in a continuous state in succession to the fire type detecting means and performs a fire extinguishing operation when the fire type detecting means detects a fire type in a package. 3. The fire prevention device according to claim 1 or 2, wherein the fire type detection means uses a smoke detector for detecting smoke emitted by the fire type or a detector for detecting infrared rays or ultraviolet rays due to heat emitted by the fire type. A fire prevention device characterized by being configured as follows. 4. The structure is arranged so as to face a load-in route of a load to be loaded into the building from a load-carrying port, and is configured in a gate shape with both side walls and a ceiling, and the side wall or A fire prevention device, characterized in that an air intake part for taking in air around a passing luggage is provided on one of the ceiling parts, and a smoke detection part is provided so as to face the air intake part. 5. The fire prevention device according to claim 4, wherein the air intake portion is provided so as to extend over the both side wall portions and the ceiling portion and both side wall portions, and the both side wall portions and the ceiling portion. In addition to the above, a packing plate for taking in the rising smoke is also included, and the packing shape detecting means for detecting the packing shape of the passing luggage, and the packing shape detecting means or the smoke detecting portion for carrying in the cargo. A fire prevention device comprising: a carry-in means for stopping carry-in of luggage when an abnormality is detected in.