Fire extinguishing slide shutter

Abstract

To provide a novel fire extinguisher capable of achieving quick fire extinguishing, elimination of influence on neighborhood, and independence from water and fire extinguishant.SOLUTION: A fire extinguishing slide shutter 1 for extinguishing a fire by cutting off an object T from the outside air by a plurality of frame bodies 10A stored in a nested state and a ceiling plate 20A, includes a hanging tool 30, a traction tool 40 as a holding mechanism, and a connection structure 50A. The plurality of frame bodies 50A are vertically slidably connected while remaining connected to each other by the connection structure 10A, and the plurality of frame bodies 10A slide and spread out downward while remaining connected to each other by releasing the holding mechanism.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a fire extinguishing slide shutter, which is a device for quickly extinguishing a fire in a building, forest, etc. [Background technology]

[0002] BACKGROUND ART Conventionally, when a fire breaks out in a building, forest, or the like, an attempt is made to extinguish the fire by spraying water or a fire extinguishing agent using a fire extinguishing device such as a fire engine.

[0003] When a fire breaks out, it is necessary for fire engines and other fire extinguishing equipment to arrive at the scene quickly, but conventional fire extinguishing methods can take time to extinguish the fire.

[0004] In particular, in areas far from fire stations, areas with poor road conditions, or residential areas with adjacent buildings, there are concerns that fire engines may be delayed in arriving due to road width or congestion, and even if they arrive in time, there is a risk that the water spray will have an impact on neighboring homes (water damage).In addition, large amounts of water and fire extinguishing agents are required to extinguish the fire.

[0005] Furthermore, although there is no need to worry about the impact on neighboring areas in mountain forests, there are cases where there is no water source nearby, making it difficult to carry out firefighting activities smoothly.

[0006] As a fire and flame prevention application, for example, the invention described in JP 4-51969 A (Patent Document 1) discloses fire shutters that are used to prevent the spread of fire in buildings and other structures. However, these shutters can only be used in locations where they have been installed in advance, and they only serve to separate the area where the fire has started from other areas, preventing flames and smoke from reaching them, so their effectiveness is limited. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 4-51969 Summary of the Invention [Problem to be solved by the invention]

[0008] An object of the present invention is to provide a new fire extinguishing device that can achieve rapid fire extinguishing, eliminate impact on the surrounding area, and do not rely on water or fire extinguishing agents. [Means for solving the problem]

[0009] The present invention, which was made to solve the above-mentioned problems, is a fire extinguishing sliding shutter in which multiple frame bodies stored in a nested state slide out sequentially from above to below a burning object to surround the object, and a ceiling board is provided on the frame body located on the innermost or outermost side, thereby cutting off the object from the outside air and extinguishing the fire, and is characterized in that it has a hanging device that suspends the frame body or the ceiling board from above, a holding mechanism that holds the multiple frame bodies in a nested state before deployment, and a connecting structure formed between the side surfaces of adjacent frame bodies that contact each other, and is characterized in that the connecting structure allows the multiple frame bodies to be connected so that they can slide up and down while remaining connected, and by releasing the holding mechanism, the multiple frame bodies can slide out downward while still connected.

[0010] According to the present invention, the surroundings of the burning object are covered with the deployed frame body and ceiling panels, and the fire can be extinguished by isolating the internal space containing the object from the outside air and cutting off the supply of oxygen, thereby making it possible to extinguish the fire quickly, without affecting the surrounding area, and without using water or fire extinguishing agents.

[0011] Furthermore, if the holding mechanism comprises a string-like traction device attached to the frame body located at the outermost or innermost position, and the multiple frame bodies are stored in a nested state by pulling the traction device upward, and the multiple frame bodies slide out downward in a connected state by releasing the traction device, it is possible to configure the holding mechanism with a very simple and solid structure that does not require an internal power source, and it is also easy to return the multiple frame bodies to their nested state after use.

[0012] Furthermore, if an attachment port for a discharge device that discharges fire-extinguishing material from above the object is formed in the ceiling panel, it will be possible to extinguish the fire using fire-extinguishing materials such as water or fire extinguishing agents, making it possible to extinguish the fire more quickly and safely in environments where these materials are available.

[0013] Furthermore, when the connecting structure comprises an elongated hole extending in the sliding direction formed in one of the side surfaces that contact each other, a fixing hole formed at an opposing position on the other side surface, and a connector having large-diameter heads on both ends of its shaft, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on its inner surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on its inner surface, the shaft portion of the connector is inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the heads are housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the heads housed in the wide elongated hole portion can slide within the wide elongated hole portion, thereby connecting adjacent frame bodies to each other so that they can slide vertically by a predetermined distance, it becomes possible to configure a connecting structure with a very simple and reliable structure that does not require a power source or the like.

[0014] Alternatively, the connecting structure may have a locking mechanism that restricts the sliding back, and is capable of maintaining the extended state of the frame body after sliding out, and may comprise an elongated hole formed in one of the side surfaces that contact each other and extending in the sliding direction, a fixing hole formed in the other side surface at an opposing position, and a connector having large-diameter heads on both ends of a shaft, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on the inner circumferential surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on the inner circumferential surface, the shaft portion of the connector is inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the head portion is housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the head portion housed in the wide elongated hole portion can slide within the wide elongated hole portion, and further, a lock is provided at the opposing position of the shaft portion of the connector. a locking protrusion is formed, and a rotating section with an expanded hole width is formed at the sliding direction end of the narrow elongated hole section of the elongated hole, a guide surface that rotates the shaft section when the shaft section abuts on the inner peripheral surface of the rotating section on the sliding direction side, and a locking step that locks with the locking protrusion of the rotated shaft section and restricts the sliding from returning is formed on the inner peripheral surface of the rotating section on the opposite side of the sliding direction, and when maintaining the extended state of the frame body with the sliding completed, the connecting structure is constituted by a very simple and solid structure that does not require a power source, and the locking mechanism allows the frame body to independently maintain the state after expansion, so that after installation, it can be quickly removed from the scene, particularly at the scene of a fire that contains hazardous materials such as flammable substances and chemicals and is at risk of explosion or toxic gas, etc., and it is possible to extinguish the fire while ensuring safety.

[0015] Furthermore, if the lower end of the frame body located at the outermost or innermost position is shaped like a non-flammable flexible mop, the non-flammable flexible mop-shaped member will come into contact with the ground when unfolded, thereby providing a cushioning effect and increasing adhesion.

[0016] Furthermore, if a sheet-shaped non-flammable cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-flammable cover spreads downward as the frame body unfolds and covers the connecting mechanism formed on the multiple frame bodies from the outside, even if there is a gap in the connecting mechanism, the gap can be filled by covering it with the non-flammable cover and the supply of outside air can be blocked.

[0017] In addition, when a cylindrical non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover spreads downward as the frame body unfolds and surrounds the multiple frame bodies, the cylindrical non-combustible cover in addition to the frame body provides double coverage around the object and blocks it from the outside air, making it possible to more reliably extinguish the object.

[0018] Furthermore, if the lifting device is connected to a transport means, it is possible to transport the fire extinguishing slide shutter of the present invention above the burning object using a transport means such as a helicopter or crane truck and use it. [Effects of the Invention]

[0019] According to the present invention, it is possible to extinguish a burning object quickly, without affecting the surrounding area, and without using water or fire extinguishing agents. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view showing a first embodiment of the present invention. [Figure 2] FIG. 2 is a plan view showing the embodiment shown in FIG. [Figure 3] FIG. 2 is a front view showing the embodiment shown in FIG. [Figure 4] FIG. 2 is a perspective view showing one of the frames in the embodiment shown in FIG. [Figure 5] 2 is a perspective view showing a deployed state of a frame body in the embodiment shown in FIG. 1. FIG. [Figure 6] FIG. 4 is an enlarged cross-sectional view of the AA line in FIG. 3. [Figure 7] FIG. 4 is an enlarged cross-sectional view of the part taken along the line BB in FIG. 3. [Figure 8] 2A and 2B are exploded and assembled perspective views showing a connector that constitutes the connecting structure in the embodiment shown in FIG. 1; [Figure 9] FIG. 2 is a perspective view showing the state in which the embodiment shown in FIG. 1 is used. [Figure 10] 2A and 2B are explanatory views showing the state of transportation of the embodiment shown in FIG. 1, in which (a) is a state of transportation by helicopter, and (b) is a state of transportation by crane truck. [Figure 11] FIG. 10 is a perspective view showing a second embodiment of the present invention in which a relay tool is added. [Figure 12] FIG. 12 is a perspective view of the embodiment shown in FIG. 11 after the frame body is unfolded. [Figure 13] FIG. 10 is a perspective view showing a third embodiment of the present invention using a square frame body. [Figure 14] FIG. 14 is a perspective view showing the state in which the embodiment shown in FIG. 13 is used. [Figure 15] FIG. 10 is a perspective view showing the expanded state of a frame body according to a fourth embodiment of the present invention, which uses a connecting structure with a locking mechanism. [Figure 16] 16A and 16B are exploded and assembled perspective views showing a connector that constitutes the connecting structure in the embodiment shown in FIG. 15. [Figure 17] 16 is a partially enlarged view showing the elongated holes and fixing holes that constitute the connecting structure in the embodiment shown in FIG. 15. FIG. [Figure 18] 16 is an explanatory diagram showing how the frame body, which has completed sliding, is locked by the locking mechanism in the embodiment shown in FIG. 15. FIG. [Figure 19] FIG. 10 is a perspective view showing a fifth embodiment of the present invention, which is provided with a sheet-like non-combustible cover, a non-combustible soft mop-like buffer member, and an attachment port for a fire-extinguishing substance discharge device. [Figure 20] FIG. 20 is a perspective view showing the state in which the embodiment shown in FIG. 19 is used. [Figure 21] FIG. 20 is a cross-sectional view showing the state in which the embodiment shown in FIG. 19 is used. [Figure 22] FIG. 10 is a perspective view showing a sixth embodiment of the present invention in which an auxiliary frame is added. [Figure 23] FIG. 13 is a perspective view showing a seventh embodiment of the present invention using a cylindrical non-combustible cover. DETAILED DESCRIPTION OF THE INVENTION

[0021] Preferred embodiments of the present invention will be described below with reference to the drawings. Note that the embodiments shown in this specification are merely examples, and the present invention should not be construed as being limited to these embodiments.

[0022] 1 to 10 are diagrams showing a first embodiment of a fire extinguishing slide shutter according to the present invention.

[0023] As shown in these figures, the fire extinguishing slide shutter 1 is a device for quickly extinguishing fires in the event of a fire in a building or the like, and comprises a plurality of frame bodies 10A that are stored in a nested state and can be slid open and unfolded, a ceiling board 20A attached to the innermost frame body 10j of the frame bodies 10A, a hanging device 30 that hangs the innermost frame body 10j or the ceiling board 20A from above, a traction device 40 which is a holding mechanism that holds the frame bodies 10A in a nested state, and a connecting structure 50A formed between the mutually contacting side surfaces of adjacent frame bodies 10A.

[0024] Each frame body constituting the plurality of frame bodies 10A is manufactured by combining plate-shaped bodies, and has a rectangular shape in plan view, with two pairs of four flat plate portions 11 facing each other and adjacent sides of each flat plate portion 11 connected so that each corner 12 is at a right angle, and is formed from a material such as a flame-retardant and lightweight metal (see Figure 4).

[0025] Depending on the size of the frame, it may be manufactured by integral molding instead of by combining plate-like bodies (not shown).

[0026] The frame bodies are different in size so that they can be stored in a nested state, and when nested, the widths and heights of the first frame body 10a, the second frame body 10b, the third frame body 10c, etc., connected from the outside to the inside, gradually decrease. Note that, although ten frame bodies are used as the number of the plurality of frame bodies 10A in this embodiment, the number can be increased or decreased to any number equal to or greater than two.

[0027] The ceiling board 20A is manufactured by combining plate-like bodies, and is composed of a horizontal portion 21 and inclined portions 22 arranged on all four sides of the horizontal portion 21, and has a quadrangular pyramid shape.

[0028] It should be noted that the most preferable shape of the ceiling panel 20A is a quadrangular pyramid shape, as this improves strength and increases internal volume, but other shapes can also be used without any problems (not shown).

[0029] A string-like member such as a wire can be used as the suspending device 30. By holding the ceiling board 20A in a fixed position with the suspending device 30, the plurality of frame bodies 10A can be slid open.

[0030] Mounting fixtures 31 to which the lifting device 30 can be attached are installed at the four corners of the horizontal portion 21 of the ceiling panel 20A, and by connecting one end of the lifting device 30 to a transportation means 90 such as a helicopter or a crane truck and attaching the other end to the mounting fixture 31, the fire extinguishing slide shutter 1 can be transported and used.

[0031] The holding mechanism consists of string-like traction devices 40 attached to the four corners of the outermost frame body 10a, and by pulling the traction devices 40 upward, the multiple frame bodies 10A become nested within each other, and by releasing the traction devices 40, the multiple frame bodies 10A slide downward while connected together.

[0032] In this way, by using a string-like traction device, it is possible to construct a holding mechanism with a very simple and solid structure that does not require an internal power source, and it also becomes easy to return the multiple frame bodies 10A to their nested state after use.

[0033] The connecting structure 50A comprises a long hole 60A extending in the sliding direction formed on the side of one of the frame bodies that are in contact with each other, a fixing hole 70 formed at an opposing position on the side of the other frame body, and a connecting device 80A having large-diameter heads 82, 85 on both ends of an axial portion 83.

[0034] That is, when a long hole 60A is formed in the first frame body 10a located on the outside of the frame bodies that are in contact with each other, a fixing hole 70 is formed in the second frame body 10b located on the inside at a position opposite the long hole 60A.

[0035] At the same time, when a long hole 60A is formed on the surface opposite to and spaced from the fixing hole 70 in the second frame body 10b, a fixing hole 70 is formed near the long hole 60A in the third frame body 10c, which is located further inward than the second frame body 10b.

[0036] The elongated hole 60A that constitutes the connecting structure 50A is formed as a two-stage elongated hole having a narrow elongated hole portion 61 that opens to the opposing surface between the frame bodies, a wide elongated hole portion 62 that is wider than the narrow elongated hole portion 61 and is connected to the narrow elongated hole portion 61 in the thickness direction, and a step portion 63 located between the narrow elongated hole portion 61 and the wide elongated hole portion 62.

[0037] The fixing hole 70 constituting the connecting structure 50A is formed as a two-stage circular hole having a small diameter hole portion 71 that opens to the opposing surface between the frame bodies, a large diameter hole portion 72 that is wider than the small diameter hole portion 71 and is connected to the small diameter hole portion 71 in the thickness direction, and a step portion 73 located between the small diameter hole portion 71 and the large diameter hole portion 72.

[0038] The narrow elongated hole portion 61 of the elongated hole 60A and the small diameter hole portion 71 of the fixing hole 70 are formed to have substantially the same width.

[0039] The connector 80A constituting the connecting structure 50A is formed with an I-shaped cross section, having a cylindrical shaft portion 83 and large-diameter disk-shaped head portions 82 and 85 located at both ends of the shaft portion 83.

[0040] The shaft 83 of the connecting device 80A is inserted into the narrow elongated hole portion 61 of the elongated hole 60A and the small diameter hole portion 71 of the fixing hole 70, and the heads 82, 85 are housed in the wide elongated hole portion 62 and the large diameter hole portion 72, respectively. The head 82 housed in the wide elongated hole portion 62 is able to slide within the wide elongated hole portion 62, thereby connecting adjacent frame bodies to each other in a slidable manner in the vertical direction by a predetermined distance, and it is possible to configure a connecting structure with a very simple and solid structure that does not require a power source or the like (see Figures 6 and 7).

[0041] To attach the connecting device 80A constituting the connecting structure 50A to the fixing hole 70 and the elongated hole 60A, one of the heads 85 is removed from the shaft 83, the shaft 83 is inserted into the fixing hole 70 and the elongated hole 60A, and the removed head 85 is reattached and attached. As shown in the exploded oblique view of Figure 8(a), the connecting device 80A in this embodiment is composed of a convex part 81 having a shaft 83 protruding from one head 82, a concave part 84 having a fitting hole 86 formed in the other head 85, and a fixing screw 87 that fixes the convex part 81 and the concave part 84 in a fitted state.

[0042] In addition, the connector in this embodiment may be configured as a convex part with a shaft portion having a male thread protruding from one head and a concave part with a female thread formed in the other head (not shown), or as a three-piece structure with two heads and one shaft portion made of separate parts (not shown), or it may be formed using other conventionally known structures, but it is desirable that the structure be one that is less likely to disassemble or break due to heat or impact.

[0043] In this embodiment, the connecting structures 50A are formed one on each of the four sides of the frame body (a total of four), but this is not limited to this and the number can be increased or decreased as appropriate depending on the desired size and strength. For example, if more strength is required in preparation for failure, the number of connecting structures can be increased (not shown).

[0044] The long holes 60A and the fixing holes 70 are formed alternately between adjacent frame bodies as the frame bodies are connected from the outside to the inside, with the first frame body 10a, the second frame body 10b, the third frame body 10c, etc., and the connecting structure 50A is formed by inserting and fastening the connecting device 80A while the long holes 60A and the fixing holes 70 are connected, and as this connecting structure 50A is formed repeatedly in sequence on each frame body, all of the frame bodies of the frame body 10A that constitutes the fire extinguishing sliding shutter 1 are slidably connected.

[0045] Furthermore, the heads 82, 85 of the connecting device 80A inserted between the elongated hole 60A and the fixing hole 70 are housed within the wide elongated hole portion 61 of the elongated hole 60A and the large diameter hole portion 71 of the fixing hole 70, and therefore do not interfere with the sliding movement of adjacent frame bodies relative to each other.

[0046] In this way, the multiple frame bodies 10A in the fire extinguishing sliding shutter 1 of this embodiment can be easily and reliably slid and extended in the vertical direction by the connecting structure 50A consisting of the long hole 60A, the fixing hole 70, and the connecting device 80A, so that the overlapping frame bodies can be easily and reliably slid and extended in the vertical direction.

[0047] FIG. 9 is a diagram showing a state in which the first embodiment of the fire extinguishing slide shutter 1 according to the present invention is used.

[0048] As shown in this figure, after positioning the fire extinguishing slide shutter 1 above an object T, such as a building, the holding mechanism, the towing device 40, is released from holding the multiple frame bodies 10A, causing the multiple frame bodies 10A stored in a nested state to slide and unfold one after another, covering the periphery of the object T and insulating the internal space containing the object T from the outside air.

[0049] In other words, this fire extinguishing slide shutter 1 is a new fire extinguishing device that can extinguish a fire in the object T by blocking the internal space containing the object T from the outside air, thereby starving the object of fire of the oxygen necessary for combustion, and achieving rapid fire extinguishing, eliminating impact on the surrounding area, and not relying on water or fire extinguishing agents.

[0050] When releasing the retention of the plurality of frame bodies 10A by the towing tool 40, which is the retention mechanism, if priority is given to the speed of deployment, it is possible to deploy the frame bodies by allowing them to fall freely due to gravity without any control after the release of retention by the towing tool 40. However, if it is desired to mitigate the impact, the towing tool 40 can be attached to a device such as a winch that can control the payout / winding speed, so that the plurality of frame bodies 10A can be deployed while controlling the speed after the release of retention, and it is also easy to return the plurality of frame bodies 10A to their nested state by rotating the winch in the opposite direction after use (not shown).

[0051] FIG. 10 is a diagram showing the state in which the first embodiment of the fire extinguishing slide shutter 1 according to the present invention is being transported.

[0052] Specifically, as the transportation means 90 for transporting the fire extinguishing sliding shutter, Fig. 10(a) shows a method in which a helicopter 91 is used as the transportation means and the helicopter 91 and the fire extinguishing sliding shutter 1 are connected and suspended by the hoisting device 30, and Fig. 10(b) shows a method in which a crane truck 92 is used as the transportation means and the crane truck 92 and the fire extinguishing sliding shutter 1 are connected and suspended by the hoisting device 30. By using these transportation means 90, the fire extinguishing sliding shutter 1 can be transported above the target T, such as a building, and then the fire extinguishing sliding shutter 1 can be used by releasing the holding of the multiple frame bodies 10A by the towing device 40, which is the holding mechanism.

[0053] 11 and 12 are diagrams showing a fire extinguishing slide shutter 2 in which a relay device 41 is added to the ceiling board 20A according to a second embodiment of the present invention.

[0054] The holding mechanism in this embodiment is composed of string-like traction devices 40 attached to the four corners of the outermost frame body 10a, and relay devices 41 arranged at the four corners of the ceiling board 20A. The relay devices 41 can be pulleys or the like.

[0055] According to the holding mechanism, the plurality of frame bodies 10A are nested by inserting the towing tool 40 into the relay tool 41 and pulling it upward, and when the towing tool 40 is released, the plurality of frame bodies 10A slide downward while connected together. This is a very simple and solid structure that does not require an internal power source, and the provision of the relay tool 41 makes it possible to form a holding mechanism that can operate more reliably by guiding the towing tool 40, and it also becomes easy to return the plurality of frame bodies 10A to their nested state after use.

[0056] 13 and 14 are diagrams showing a square-shaped fire extinguishing slide shutter 3 according to a third embodiment of the present invention.

[0057] As shown in these figures, the planar shape of the plurality of frame bodies 10B can be square, and the planar shape of the ceiling board 20B is also square to match the planar shape of the frame bodies 10B.

[0058] The structure and operation of the frame body 10B and the ceiling board 20B are similar to those of the fire extinguishing slide shutter 1 using a frame body having a rectangular shape in a plan view, and therefore detailed description thereof will be omitted.

[0059] The square-shaped fire extinguishing slide shutter 3 is smaller than the rectangular fire extinguishing slide shutter 1, whose short sides are approximately the same length, and therefore has the advantage that when used in a densely built residential area, for example, it can be used without interfering with neighboring buildings of the target building T.

[0060] In addition, the shape of the frame can be selected appropriately depending on other desired purposes, costs, etc., and for example, it is possible to make a circular fire extinguishing slide shutter having an approximately circular frame (not shown).

[0061] 15 to 18 are diagrams showing a fire extinguishing slide shutter 4 using a connecting structure with a locking mechanism, which is a fourth embodiment of the present invention.

[0062] Connecting structure 50B in this embodiment has a locking mechanism that restricts the return of the slide, and is capable of maintaining the extended state of frame body 10A after sliding out. Therefore, as shown in Fig. 15, frame body 10A in this embodiment after deployment maintains the slid state by the locking mechanism, and can independently maintain the deployed state even when the towing by hoisting device 30 is released. Therefore, particularly at the scene of a fire that contains hazardous materials such as flammable substances and chemicals and is at risk of explosion or toxic gas, it is possible to quickly leave the scene after installation, and to extinguish the fire while ensuring safety.

[0063] The connecting structure 50B with a locking mechanism in this embodiment comprises a long hole 60B extending in the sliding direction formed on the side of one of the frame bodies 10A that are in contact with each other, a fixing hole 70 formed at an opposing position on the side of the other frame body, and a connecting device 80B having large-diameter heads 82, 85 on both ends of an axial portion 83.

[0064] The elongated hole 60B has a narrow elongated hole portion 61 and a wide elongated hole portion 62 due to a step portion 63 formed on its inner surface, and the fixing hole 70 has a small diameter hole portion 71 and a large diameter hole portion 72 due to the step portion 73 formed on its inner surface. The shaft portion 83 of the connecting device 80B is inserted into the narrow elongated hole portion 61 of the elongated hole 60B and the small diameter hole portion 71 of the fixing hole 70, and the head portions 82, 85 are housed in the wide elongated hole portion 62 and the large diameter hole portion 72, respectively. The head portion 82 housed in the wide elongated hole portion 62 can slide within the wide elongated hole portion 62, and the basic parts are the same as those of the connecting structure 50A.

[0065] The locking mechanism consists of locking protrusions 89, 89 (see Figure 16) formed symmetrically on the shaft portion 83 of the connector 80B, and a rotating portion 65 (see Figure 17) formed by expanding the hole width at the sliding direction end of the narrow elongated hole portion 61 of the elongated hole 60B.

[0066] The rotating portion 65 comprises a guide surface 66 formed on the inner circumferential surface on the sliding direction side so as to be inclined toward the sliding direction, and a locking step portion 67 formed on the inner circumferential surface on the opposite side to the sliding direction.

[0067] According to this locking mechanism, the shaft portion 83 (the locking protrusions 89, 89) moves while contacting the guide surface 66, thereby rotating the entire connector 80B, and the locking protrusions 89, 89 after rotation are engaged with the engaging step portion 67, thereby holding the connector 80B within the rotating portion 65. Therefore, the return of the slide is restricted, and the extended state of the frame body after the slide is completed is maintained.

[0068] FIG. 18 is an explanatory diagram showing how the frame body whose sliding has been completed is locked by the locking mechanism in this embodiment.

[0069] As shown in Figure 18(a), the rotating portion 65 is formed at the sliding direction end of the elongated hole 60B formed in the frame body 10A, expanding to a width W3 that is greater than the width W1 of the narrow elongated hole portion and less than the width W2 of the wide elongated hole portion.

[0070] 18(a), when the frame body 10A slides further, the locking projections 89, 89 of the connector 80B come into contact with the guide surface 66, and the sliding is almost completed, as shown in FIG. 18(b). At this time, the locking projections 89, 89 of the connector 80B are guided in an inclined direction while contacting the guide surface 66, and the connector 80B rotates about its axis.

[0071] 18(c) shows the state in which the connector 80B of the frame body with the sliding completed rotates on its axis and the locking mechanism is activated. At this time, a locking step 67 is formed on the inner peripheral surface of the rotating part 65 opposite the sliding direction, and since the width W4 of the locking protrusion is wider than the width W1 of the narrow elongated hole, the locking protrusions 89, 89 come into contact with the locking step 67 and the connector 80B is held in place and cannot escape from the rotating part 65, thereby maintaining the frame body with the sliding completed in an extended state.

[0072] 19 to 21 are diagrams showing a fire extinguishing slide shutter 5 according to a fifth embodiment of the present invention, which is provided with a non-combustible cover, a non-combustible soft mop-shaped buffer member, and an attachment port for a release tool.

[0073] As shown in the diagram of the usage state in Figure 19, the fire extinguishing slide shutter 5 has a sheet-like non-flammable cover 100 provided on the upper side of the frame body 10A, a non-flammable flexible mop-shaped buffer material 14 provided on the lower side of the frame body 10A, and an attachment port 24 for a fire extinguishing material discharge device provided in the center of the ceiling board 20A.

[0074] The non-combustible cover 100 is made of a non-combustible or flame-retardant and flexible material, such as a sheet of woven glass fiber, and is arranged on all four sides so as to cover the connecting structure when deployed. Before use, it is stored in a roll or accordion-like shape, and at least one end is fixed to the frame body 10A or the ceiling board 20A.

[0075] In this embodiment, one end 101 of the non-combustible cover 100 is fixed to the ceiling board 20A and the other end 102 is left free, so that when the multiple frame bodies 10A are extended, the other end 102 drops, thereby enabling the non-combustible cover 100 to be deployed.However, it is also possible to fix one end 101 of the non-combustible cover 100 to the ceiling board 20A and fix the other end 102 to the outermost frame body 10a of the frame bodies, so that when the multiple frame bodies 10A are extended, the other end 102 drops together with the frame body 10a, thereby enabling the non-combustible cover 100 to be deployed (not shown).

[0076] A holding member (not shown) may be provided separately to maintain the stored state of the non-combustible cover 100. The holding member may be, for example, a string-like member or tape that breaks upon impact.

[0077] By providing the non-flammable cover 100 in this manner, it is possible to cover and conceal the long hole 60A of the connecting mechanism 50A, thereby more tightly covering the periphery of the object T and isolating the internal space containing the object T from the outside air.

[0078] The non-flammable flexible mop-shaped buffer member 14 is made of a material that is non-flammable or flame-retardant and flexible, such as acrylic fiber, and is positioned at the bottom of the outermost frame body 10a of the frame plates.

[0079] By providing the buffer member 14 in this manner, it is possible to provide a buffering effect when the frame body 10a comes into contact with the ground, thereby absorbing the impact, and even if the ground is uneven, it can deform to fit the shape of the ground, filling in any gaps, more tightly covering the periphery of the object T, and insulating the internal space containing the object T from the outside air.

[0080] The attachment port 24 for the fire-extinguishing substance discharge device is formed at the outer end of a pipe-shaped passage 25 formed to penetrate the center of the horizontal portion 21 of the ceiling plate 20A.

[0081] The passage 25 may be formed in a bendable shape such as a bellows tube (not shown).

[0082] By providing the mounting port 24 in this manner, it is possible to use a fire engine, fire hydrant, or water bucket that can supply water as a fire extinguishing substance as a discharge device, connect the discharge device to the mounting port 24, and extinguish the fire by spraying water from above the object T, thereby making it possible to extinguish the fire more quickly and safely in environments where water can be used.

[0083] In addition, a nozzle member 26 having a plurality of water-spraying holes formed therein is attached to the inner end of the passage 25, and the nozzle member 26 makes it possible to uniformly diffuse the sprayed water.

[0084] The extinguishing material supplied through the mounting port 24 is not limited to water; other materials such as fire extinguishing agents, water mixed with fire extinguishing agents, and inert gases such as nitrogen and carbon dioxide can also be used. Any material can be used regardless of its nature, such as liquid, gas, solid, foam, or gel.

[0085] According to the fire extinguishing method using the fire extinguishing slide shutter 5 of this embodiment, compared to the conventional simple fire extinguishing method of only spraying water from a fire pump truck, it combines fire extinguishing and cooling by spraying water with fire extinguishing by cutting off oxygen, making it possible to extinguish the fire more quickly.After the fire is extinguished, the towing device 40 or the lifting device 30 can be reeled in to quickly release the blockade, allowing firefighters and others to enter the inside of the object T.This is expected to increase the chances of rescuing anyone who is unable to escape and is inside the object T.

[0086] FIG. 22 is a diagram showing a fire extinguishing slide shutter 6 to which an auxiliary frame is further added, according to a sixth embodiment of the present invention.

[0087] The auxiliary frame 110 has a double structure consisting of an outer auxiliary frame 111 and an inner auxiliary frame 113, and is disposed above the plurality of frame bodies 10A. Note that a single structure using only the outer auxiliary frame 111 may also be used (not shown).

[0088] Intermediate members 112 for inserting the towing tool 40 are provided at the four corners of the outer auxiliary frame 111. The intermediate members 112 may be pulleys or the like.

[0089] The inner auxiliary frame 113 is connected to the ceiling panel 20A by a hoisting fixture 114, and by holding the ceiling panel 20A in a fixed position by the hoisting fixtures 30, 114, the multiple frame bodies 10A can be slid open.

[0090] In this embodiment, the towing device 40, one end of which is fixed to the outermost frame body 10a among the frame plates, passes through the relay device 112 of the outer auxiliary frame 111 and is then connected to a moving means or the like, thereby enabling the deployment and storage of the multiple frame bodies 10A.

[0091] It should be noted that the outer auxiliary frame 111 and the inner auxiliary frame 113 may be connected to each other by providing a connecting support or a connecting wire between them (not shown).

[0092] By providing the auxiliary frame 110 in this manner, it is possible to further improve the strength of the entire fire extinguishing slide shutter, and it is also desirable because it makes it easier to maintain balance when unwinding or retracting the hanging device 30 or the towing device 40.

[0093] FIG. 23 is a perspective view showing a fire extinguishing slide shutter 7 equipped with a cylindrical non-combustible cover according to the seventh embodiment of the present invention.

[0094] The cylindrical non-flammable cover 120 is made of a non-flammable or flame-retardant and flexible material, such as a sheet of woven glass fiber, and is arranged in a bellows-like stored state with one end 121 fixed to the outer auxiliary frame 111 and the other end 122 fixed to the outermost frame body 10a of the frame bodies so that it covers the outer periphery of the frame body 10A when unfolded.

[0095] By providing the cylindrical non-combustible cover 120 in this manner, it is possible to doubly cover the periphery of the object T with the non-combustible cover 120 in addition to the multiple frame bodies 10A, thereby blocking it from the outside air, making it possible to more reliably extinguish the fire of the object T.

[0096] In each of the above embodiments, it is assumed that the target T is a large object such as a building, and that the fire extinguishing slide shutter is a large device having a frame large enough to cover and conceal the target T, but the embodiments of the present invention are not limited to this. For example, it may be configured as a device of a size that can be carried by hand, and can also be used as a small device for relatively small fires, such as for extinguishing unexpected fires or bonfires (not shown).

[0097] In addition, in each of the above embodiments, the outermost frame body slides downward most, the innermost frame body is located at the top and has a ceiling plate, and when the frame body in the expanded state is viewed from the front, it has a shape that convex upward, but this can also be reversed. That is, the innermost frame body slides downward most, the outermost frame body is located at the top and has a ceiling plate, and when the frame body in the expanded state is viewed from the front, it may have a shape that convex downward (not shown).

[0098] In this case, the lifting device is attached to the ceiling panel, but the towing device, which is the holding mechanism, is attached to the innermost frame. For example, a through hole can be formed in part of the ceiling panel so that the towing device can be exposed to the outside of the ceiling panel through the through hole and be operable (not shown).

[0099] As described above, the fire extinguishing slide shutter of the present invention makes it possible to quickly extinguish a burning object without using water or fire extinguishing agents, without affecting the surrounding area. Furthermore, the use of a connecting structure with a locking mechanism improves ease of handling, the use of a non-combustible cover or a non-combustible flexible mop-shaped buffer member improves fire extinguishing performance by increasing sealing, and the use of an attachment port for a fire extinguishing agent discharger improves fire extinguishing performance using fire extinguishing agents such as water or fire extinguishing agents. By combining some or all of these elements, a better fire extinguishing slide shutter can be provided. [Explanation of symbols]

[0100] 1, 2, 3, 4, 5, 6, 7 Fire extinguishing slide shutter, 10A, 10B, a, 10b, 10c, 10j frame body, 11 flat plate portion, 12 corner portion, 14 buffer member, 20A, 20B ceiling plate, 21 horizontal portion, 22 inclined portion, 24 attachment port for release device, 25 passage, 26 lotus-mouth member, 30 lifting device, 31 attachment device, 40 towing device, 41 relay device, 50A, 50B connecting structure, 60A, 60B elongated hole, 61 narrow elongated hole portion, 62 wide elongated hole portion, 63 step portion, 65 rotating portion, 66 guide surface, 67 locking step portion, 70 fixing hole, 71 small diameter hole portion, 72 large diameter hole portion, 73 step portion, 80A, 80B connecting device, 81 convex part, 82 Head, 83 Shaft, 84 Recessed part, 85 Head, 86 Fitting hole, 87 Fixing screw, 89 Locking protrusion, 90 Means of transportation, 91 Helicopter, 92 Crane, 100 Non-combustible cover, 101 One end, 102 Other end, 110 Auxiliary frame, 111 Outer auxiliary frame, 112 Relay, 113 Inner auxiliary frame, 114 Lifting tool, 120 Non-combustible cover, 121 One end, 122 Other end, T Object, W1 Width of narrow elongated hole, W2 Width of wide elongated hole, W3 Width of rotating part, W4 Width of locking protrusion

Claims

1. A fire extinguishing slide shutter in which a plurality of frame bodies stored in a nested state slide out sequentially from above to below a burning object to surround the periphery of the object, and a ceiling plate is provided on the frame body located on the innermost or outermost side to isolate the object from outside air and extinguish the fire, a suspending tool that suspends the frame body or the ceiling panel from above; a holding mechanism that holds the plurality of frame bodies in a nested state before deployment; a connecting structure formed between the side surfaces of the adjacent frame bodies that are in contact with each other; and A fire extinguishing sliding shutter characterized in that the connecting structure connects the multiple frame bodies so that they can slide vertically while remaining connected, and that by releasing the holding mechanism, the multiple frame bodies can slide downward while still connected.

2. The fire extinguishing slide shutter according to claim 1, characterized in that the holding mechanism comprises a string-like pulling device attached to the frame body located at the outermost or innermost position, and by pulling the pulling device upward, the multiple frame bodies are stored in a nested state, and by releasing the pulling device, the multiple frame bodies slide out downward in a connected state.

3. 3. The fire extinguishing slide shutter according to claim 1, wherein the ceiling plate is formed with an attachment port for a discharger that discharges a fire extinguishing substance from above the object.

4. 4. The fire extinguishing sliding shutter according to claim 1, wherein the connecting structure comprises a long hole formed in one of the adjacent side surfaces and extending in the sliding direction, a fixing hole formed in the other side surface at an opposing position, and a connector having large-diameter heads at both ends of its shaft, wherein the long hole has a narrow long hole portion and a wide long hole portion due to a step formed on its inner surface, and the fixing hole has a small-diameter hole portion and a large-diameter hole portion due to a step formed on its inner surface, and the shaft of the connector is inserted through the narrow long hole portion of the long hole and the small-diameter hole portion of the fixing hole, and the heads are housed in the wide long hole portion and the large-diameter hole portion, respectively, and the heads housed in the wide long hole portion can slide within the wide long hole portion, thereby connecting adjacent frame bodies to each other in a slidable manner in the vertical direction by a predetermined distance.

5. The connecting structure has a locking mechanism that restricts the return of the slide, and is capable of maintaining the frame body in a slidably deployed and extended state, the connector comprises an elongated hole formed in one of the side surfaces that are in contact with each other and extending in the sliding direction, a fixing hole formed in the other side surface at an opposing position, and a connector having large-diameter heads at both ends of a shaft portion, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on the inner peripheral surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on the inner peripheral surface, the shaft portion of the connector is inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the head portion is housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the head portion housed in the wide elongated hole portion can slide within the wide elongated hole portion, Furthermore, a locking protrusion is formed on the shaft portion of the connector, a rotating portion with an expanded hole width is formed at the sliding direction end of the narrow elongated hole portion of the elongated hole, a guide surface is formed on the inner surface of the rotating portion on the sliding direction side, which rotates the shaft portion by contacting the guide surface, and a locking step is formed on the inner surface of the rotating portion on the opposite side in the sliding direction, which locks the locking protrusion of the rotated shaft portion and restricts the sliding from returning, thereby maintaining the extended state of the frame body when the sliding is completed.

6. 6. A fire extinguishing slide shutter according to claim 1, wherein the lower end of said frame body positioned at the outermost or innermost side is shaped like a non-flammable flexible mop.

7. A fire extinguishing slide shutter as described in claims 1, 2, 3, 4, 5 or 6, characterized in that a sheet-shaped non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover spreads downward as the frame body unfolds, covering from the outside the connecting mechanisms formed on the multiple frame bodies.

8. A fire extinguishing slide shutter as described in claims 1, 2, 3, 4, 5 or 6, characterized in that a cylindrical non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover expands downward as the frame body unfolds, surrounding the multiple frame bodies.

9. 9. A fire extinguishing slide shutter according to claim 1, wherein the suspending device is connected to a moving means.

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