Portable fire detection and extinguishing devices

Abstract

To provide a portable fire detector / fire extinguisher that prevents a fire extinguishing agent from falling onto a control part even when the control part is provided below a fire extinguishing agent discharge nozzle.SOLUTION: A portable fire detector / fire extinguisher 1 includes: a fire extinguishing agent tank 3 in which a fire extinguishing agent is encapsulated; a support member 5 extending above the fire extinguishing agent tank 3; a fire detector 7 provided in the upper part of the support member 5; a fire extinguishing agent discharge nozzle 9 disposed below the fire detector 7 in the support member 5 for discharging the fire extinguishing agent in the fire extinguishing agent tank 3; and a control part 11 provided below the fire extinguishing agent discharge nozzle 9 for controlling discharge of the fire extinguishing agent by the fire extinguishing agent discharge nozzle 9 on the basis of a detection signal of the fire detector 7. An umbrella member 13 is provided below the fire extinguishing agent discharge nozzle 9 in the support member 5 for preventing the fire extinguishing agent discharged from the fire extinguishing agent discharge nozzle 9 from falling onto the control part 11.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a portable fire detection and extinguishing device that can be placed anywhere in an environment where a building has not yet been completed, such as a construction site for a building, and can detect and extinguish a fire. [Background technology]

[0002] With regard to a portable fire detection and extinguishing system, for example, Patent Document 1 discloses a portable fire detection and extinguishing system comprising: an extinguishing agent tank containing an extinguishing agent; a transport means for moving the extinguishing agent tank; a frame provided on the extinguishing agent tank; a support member attached to the frame so that the height of an upper end of the support member can be adjusted; a fire detector provided on an upper portion of the support member; an extinguishant discharge nozzle provided on the support member or the frame for discharging the extinguishant from the extinguishant tank; and a control unit for controlling the discharge of the extinguishant by the extinguishant discharge nozzle based on a detection signal from the fire detector (see claim 1 of Patent Document 1).

[0003] In Patent Document 1, with regard to the positional relationship between the extinguishant discharge nozzle and the control unit, the extinguishant discharge nozzle is disposed above the control unit. This is because a high position for the extinguishing agent discharge nozzle is preferable in terms of widening the range over which the extinguishing agent is sprayed, while a low position where a person can operate the control unit, which is provided with an operating part such as a switch, is preferable. For this reason, the control unit is necessarily disposed below the extinguishant discharge nozzle (see Figs. 1 and 3 of Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-185256 A Summary of the Invention [Problem to be solved by the invention]

[0005] If the control unit is provided below the extinguishing agent discharge nozzle, there is a problem in that the extinguishing agent may fall on the control unit when the extinguishing agent is discharged.

[0006] The present invention has been made to solve such problems, and aims to provide a portable fire detection and extinguishing device that prevents extinguishing agent from falling on the control unit, even if the control unit is located below the extinguishing agent discharge nozzle. [Means for solving the problem]

[0007] (1) The portable fire detection and extinguishing device according to the present invention is a portable fire detection and extinguishing device, a fire extinguishant tank containing an extinguishant, a support member extending above the extinguishant tank, a fire detector provided on an upper portion of the support member, an extinguishant discharge nozzle disposed below the fire detector on the support member for discharging the extinguishant from the extinguishant tank, and a control unit disposed below the extinguishant discharge nozzle for controlling the discharge of the extinguishant from the extinguishant discharge nozzle based on a detection signal from the fire detector, The present invention is characterized in that a shade member is provided below the extinguishant discharge nozzle on the support member to prevent the extinguishant discharged from the extinguishant discharge nozzle from falling on the control unit.

[0008] (2) Furthermore, in the configuration described in (1) above, the support member has a pair of vertical members arranged at a predetermined distance from each other and having adjustable heights at their upper ends, and a horizontal member suspended between the pair of vertical members, and the extinguishing agent discharge nozzle and the umbrella member are attached to the horizontal member.

[0009] (3) Furthermore, in the above-mentioned (1) or (2), a camera for photographing the monitoring range of the fire detector is disposed above the extinguishing agent discharge nozzle.

[0010] (4) Furthermore, in any of the above (1) to (3), the umbrella member is made of a plate-shaped member having an upper edge portion and a lower edge portion, the lower edge portion is longer than the upper edge portion and has a wider shape downward, and the lower edge portion is arranged at an angle so as to protrude in the direction in which the extinguishing agent is sprayed.

[0011] (5) Furthermore, in any of the above (1) to (4), the umbrella member has a front wall and side walls provided on both sides of the front wall, and the front wall is formed of a flat plate. Effect of the Invention

[0012] In the present invention, by providing the umbrella member below the extinguishing agent discharge nozzle, it is possible to prevent the extinguishing agent from falling on the control unit when the extinguishing agent is discharged. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view of a portable fire detection and extinguishing device according to an embodiment of the present invention (in a monitoring state with the support member extended). [Diagram 2] 1 is a perspective view of a portable fire detection and extinguishing device according to an embodiment of the present invention (in a state in which the support member is retracted and the device is being moved). [Diagram 3] 4A to 4C are explanatory diagrams of an umbrella member according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] As shown in Figs. 1 and 2, a portable fire detection and extinguishing system 1 according to one embodiment of the present invention comprises an extinguishant tank 3 containing an extinguishant, a support member 5 extending above the extinguishant tank 3, a fire detector 7 provided on an upper portion of the support member 5, an extinguishant discharge nozzle 9 disposed below the fire detector 7 on the support member 5 and discharging the extinguishant from the extinguishant tank 3, a control unit 11 disposed below the extinguishant discharge nozzle 9 and controlling the discharge of extinguishant by the extinguishant discharge nozzle 9 based on a detection signal from the fire detector 7, and an umbrella member 13 disposed below the extinguishant discharge nozzle 9 on the support member 5. Each component will be described in detail below.

[0015] <Fire extinguishing agent tank> The extinguishing agent tank 3 is for sealing an extinguishing agent, and as the extinguishing agent, for example, a neutral reinforced liquid is used. The extinguishant tank 3 is a cylindrical container with curved top and bottom end panels, and has a capacity of, for example, about 40 L. However, the shape and capacity of the extinguishant tank 3 are not limited in the present invention, and it may be any tank that can be manually transported.

[0016] The extinguishing agent tank 3 is fitted with wheels 15 as a means for transportation, so that the device can be moved manually, that is, by an operator pushing it by hand, to a desired location. The wheels 15 in this embodiment are attached in pair to the rear of the lower end of the extinguishant tank 3, as shown in FIG. The transportation means for making the device of the present invention portable is not limited to wheels 15 as shown in FIG. 1, and may be any other form that functions to allow an operator to manually move the device to a desired location.

[0017] <Supporting member> The support member 5 is a member that extends above the extinguishant tank 3, and has a fire detector 7, an extinguishant discharge nozzle 9 and an umbrella member 13 attached thereto. Specifically, it has a pair of vertical members 5a arranged at a predetermined distance from each other and whose upper ends have adjustable heights, and a horizontal member 5b suspended between the pair of vertical members 5a, and a fire extinguishing agent discharge nozzle 9 and an umbrella member 13 are attached to the horizontal member 5b. In addition, an upper horizontal member 5c is provided at the upper ends of the pair of vertical members 5a, and a fire detector 7 and a camera 17 that photographs the monitoring range of the fire detector 7 are disposed on the upper horizontal member 5c.

[0018] The support member 5 in this embodiment is height adjustable, and is contracted as shown in FIG. 2 during transportation, and is extended as shown in FIG. 1 when being installed in a predetermined location. The vertical member 5a is an extendable member made of a telescopic pipe and can be fixed in two positions: with the upper end at its highest position (see Figure 1) and at its lowest position (see Figure 2). During transportation, by setting the position of the upper end of the support member 5 to the lowest position, it is possible to easily pass through narrow places and facilitate transportation. On the other hand, during monitoring, by setting the position of the support member 5 to the highest position, it is possible to widen the fire monitoring area and the area for discharging the extinguishing liquid.

[0019] Incidentally, a frame 19 is provided around the extinguishant tank 3 for holding devices such as the control unit 11. The frame 19 includes, for example, a push handle 19a that an operator holds when pushing the extinguishant tank 3 by hand to move it, and a control unit holder 19b for holding the control unit 11. Incidentally, a warning light 21 is provided on the frame 19. The warning light 21 is controlled by the control unit 11, and is normally lit in green, and when a fire is detected by the fire detector 7, it is lit in red or flashes red.

[0020] <Fire detector> The fire detector 7 is provided on the upper end horizontal member 5c and detects a fire in the surrounding area, and is constituted by, for example, an infrared flame detector. The fire detector 7 has multiple flame detectors (in this example, two, a first flame detector 7a and a second flame detector 7b) with a predetermined monitoring range, and the multiple flame detectors are arranged so that their monitoring ranges partially overlap. The monitoring ranges of the first flame detector 7a and the second flame detector 7b partially overlap, and as a whole, their monitoring range is centered on the position of the portable fire detection and extinguishing device 1 and covers a radius of, for example, 5 m on the floor surface in front (the side where the umbrella part 13 is located) and 200° in the left and right directions.

[0021] <Fire extinguishing agent discharge nozzle> The extinguishant discharge nozzle 9 is attached to the horizontal member 5b, and discharges the extinguishant supplied from the extinguishant tank 3 via an extinguishant supply pipe (not shown). The extinguishing agent discharge nozzle 9 is composed of three nozzles: a first extinguishing agent discharge nozzle 9a, a second extinguishing agent discharge nozzle 9b, and a third extinguishing agent discharge nozzle 9c, and each nozzle is configured to discharge extinguishing agent evenly into its respective discharge area. The first extinguishant discharge nozzle 9a and the second extinguishant discharge nozzle 9b, and the second extinguishant discharge nozzle and the third extinguishant discharge nozzle 9c have partially overlapping discharge areas to cover the monitoring range of the fire detector 7. When the first flame detector 7a detects a fire, extinguishant is discharged from the first extinguishant discharge nozzle 9a and the second extinguishant discharge nozzle 9b, and when the second flame detector 7b detects a fire, extinguishant is discharged from the second extinguishant discharge nozzle 9b and the third extinguishant discharge nozzle 9c.

[0022] <Control Unit> A detection signal from the fire detector 7 is input to the control unit 11, and the control unit 11 controls the discharge of the extinguishant from the extinguishant discharge nozzle 9 based on the detection signal.

[0023] In this embodiment, in addition to the above configuration, a camera 17 (a visible light camera and an infrared camera) is installed on the upper end of the support member 5 in the same manner as the fire detector 7. The camera 17 is attached to the upper cross member 5c and is positioned above the extinguishing agent discharge nozzle 9, so that the extinguishing agent will not fall on it. In addition, the control unit 11 has a camera control function of taking images using the camera 17 when the fire detector 7 detects a fire and / or after the extinguishing agent is released from the extinguishing agent discharge nozzle 9, a transmission function of wirelessly transmitting image data taken by the camera 17 to an external device, and a function of controlling the warning light 21.

[0024] <Umbrella parts> Umbrella member 13 is provided on support member 5 below extinguishant discharge nozzle 9 in the extinguishant discharge direction and above control unit 11, and has the function of preventing extinguishant discharged from extinguishant discharge nozzle 9 from falling on control unit 11. More specifically, when umbrella member 13 is attached to cross member 5b and viewed from above, the frontmost part of control unit 11 is located inside the projected area of ​​umbrella member 13. The position where the umbrella member 13 is provided may be any position below the extinguishant discharge nozzle 9, but in this embodiment, it is attached to the horizontal member 5b in the same manner as the extinguishant discharge nozzle 9.

[0025] 3, the umbrella member 13 is a plate-like member having an upper side 13a and a lower side 13b, and has a trapezoidal front wall 13c whose lower side 13b is longer than the upper side 13a and whose lower portion is wider, and side walls 13d provided on both sides of the front wall 13c, the front wall 13c being formed of a flat plate. An attachment portion 13e for attaching the umbrella member 13 to the horizontal member 5b is provided above the front wall 13c.

[0026] The front wall 13c is inclined by α° so that the lower side 13b side protrudes in the direction in which the extinguishing agent is emitted (see FIG. 3(b)). The inclination angle α is set to, for example, 20°, but may be set appropriately to an angle at which the extinguishing agent does not fall on the control unit 11 depending on the relative positions of the umbrella member 13 and the extinguishing agent discharge nozzle 9. In this regard, by attaching the umbrella member 13 to the same horizontal member 5b as the extinguishant discharge nozzle 9, it is disposed directly below the extinguishant discharge nozzle 9, and the inclination angle α can be reduced. This makes it difficult for the umbrella member 13 to enter the monitoring range of the fire detector 7.

[0027] The front wall 13c is also made of a flat plate in order to make it difficult for the front wall 13c to enter the monitoring range of the fire detector 7. It is also within the scope of the present invention to make the front wall 13c curved and integrated with the side wall 13d, but for the above reasons, it is preferable to make the front wall 13c a flat plate and form the side wall 13d, which can minimize the protrusion of the front wall 13c forward (in the direction in which the extinguishing agent is discharged).

[0028] Next, the operation of the portable fire detection and extinguishing system 1 of this embodiment configured as described above will be described, focusing on the function of the umbrella member 13. The portable fire detection and extinguishing device 1 is installed at the site, the support member 5 is extended upward, and power is supplied from a socket or the like (not shown), and monitoring begins. In the monitoring state, the umbrella member 13 is not within the monitoring range of the fire detector 7, and does not obstruct monitoring.

[0029] When a fire occurs, the fire detector 7 is activated to detect the fire. When the control unit 11 determines that there is a fire, the control unit 11 activates the extinguishing agent release control actuator, and extinguishing agent is released from the extinguishing agent release nozzle 9 corresponding to the fire detector 7 that detected the fire. Although the extinguishing agent is also discharged directly below the extinguishing agent discharge nozzle 9, the presence of the umbrella member 13 can prevent the extinguishing agent from falling on the control unit 11. In addition, when a fire is determined to exist, the camera will start taking pictures and send the captured image data along with a notification of the fire to the administrator, allowing the administrator to know the fact that a fire has occurred and the situation at the scene through the notification and image data. The camera 17 is also provided above the extinguishing agent discharge nozzle 9, so that the extinguishing agent does not fall on it.

[0030] As described above, according to this embodiment, the provision of the umbrella member 13 prevents the extinguishing agent from falling on the control unit 11, and thus prevents malfunction of the control unit 11 caused by the extinguishing agent.

[0031] In addition, although the umbrella member 13 in the above embodiment has a front wall 13c and a side wall 13d, the umbrella member 13 of the present invention is not limited to this and broadly includes umbrella members that are provided below the extinguishant discharge nozzle 9 on the support member 5 and have the function of preventing the extinguishant discharged from the extinguishant discharge nozzle 9 from falling on the control unit 11. [Explanation of symbols]

[0032] 1 Portable fire detection and extinguishing system 3. Fire extinguishing agent tank 5 Supporting member 5a Vertical member 5b Horizontal member 5c Upper end horizontal member 7 Fire detector 7a 1st flame detector 7b 2nd flame detector 9 Extinguishing agent discharge nozzle 9a First extinguishing agent discharge nozzle 9b Second extinguishing agent discharge nozzle 9c Third extinguishing agent discharge nozzle 11 Control section 13 Umbrella parts 13a Upper part 13b Bottom 13c front wall 13d side wall 13e Mounting part 15 wheels 17 Camera 19 Frame 19a Push Handle 19b Control unit holding part 21 Warning light

Claims

[Claim 1] A portable fire detection and extinguishing device, an extinguishant tank containing an extinguishant, a support member extending above the extinguishant tank, a fire detector consisting of an infrared flame detector provided on an upper portion of the support member, an extinguishant discharge nozzle disposed below the fire detector on the support member for discharging the extinguishant from the extinguishant tank, and a control unit disposed below the extinguishant discharge nozzle for controlling the discharge of the extinguishant from the extinguishant discharge nozzle based on a detection signal from the fire detector; a cover member disposed directly below the extinguishing agent discharge nozzle on the support member for preventing the extinguishing agent discharged from the extinguishing agent discharge nozzle from falling on the control unit; The umbrella member is a plate-shaped member having an upper edge and a lower edge, the lower edge being longer than the upper edge and wider at the bottom, and the lower edge protruding in the direction of the extinguishing agent being sprayed and tilted at an angle that does not fall within the monitoring range of the fire detector.This portable fire detection and extinguishing device is characterized in that the umbrella member is a plate-shaped member having an upper edge and a lower edge, the lower edge being longer than the upper edge and wider at the bottom, and the lower edge protruding in the direction of the extinguishing agent being sprayed and tilted at an angle that does not fall within the monitoring range of the fire detector.

Images