JP2021167551A - Alc fire fence - Google Patents

Abstract

To provide a fire fence for preventing the fire spread to a wooden building with a simple structure.SOLUTION: There is provided an ALC fire fence in which a web surface of an H-shaped steel foundation formed of H-shaped steel so as to surround a wooden building on the grounding surface around the wooden building is installed in parallel with the grounding surface, a plurality of ALC panels are installed on the web surface of the H-shaped steel foundation such that the lower parts of the ALC panels are brought into contact with each other laterally, the ALC panels are fixed by putting a head board formed by molding a flat steel plate in the U shape on the upper part of the ALC panels, a water storage tank is installed on the upper part of the head board, a fire-proof water gutter molded in the U shape in order to store water is installed on the wooden building side of the head board, and a fire-proof wire gauze for preventing the fire spread due to fire powder of wood piece plates and the like is installed on the upper part of the fire-proof water gutter.SELECTED DRAWING: Figure 4

Description

The present invention relates to a fire protection wall for preventing the spread of fire in a wooden building.

Conventionally, at a fire site in a residential area where buildings are densely packed, a large amount of water is discharged to the house at the fire source to prevent the fire from spreading to the building around the fire source, and the building next to the house is used to prevent the fire from spreading to the neighboring house. Also, the spread of fire has been stopped by discharging water to wet the houses.

However, if the house at the source of the fire does not receive enough water to completely prevent the spread of fire, or if a large amount of water is discharged to the neighboring house to prevent the spread of fire, water will infiltrate into the house and the room will be flooded. Sometimes.

Currently, one method that has been put into practical use as a method for preventing the spread of fire is a method for preventing the spread of fire by designing the building itself as a fire wall. This method has a problem that the reliability of fire spread prevention is high, but the construction cost is increased.

In recent years, there have been frequent warnings about the possibility of an earthquake directly beneath the Tokyo metropolitan area or a huge Nankai Trough earthquake. Especially in urban areas, there are many areas where dilapidated wooden houses are concentrated. Since there is an extremely high possibility that a fire will occur due to a huge earthquake or the like, urgent measures are desired.

An object of the present invention is to provide a fire protection wall for preventing the spread of fire to a wooden building with a simple structure in order to solve the above problems.

In order to solve such a problem, in the invention according to claim 1, the fire protection wall for protecting the wooden building from the fire of the neighboring house is formed of H-shaped steel so as to surround the wooden building on the ground surface around the wooden building. The web surface of the H-shaped steel base is installed parallel to the ground surface, a plurality of ALC panels are installed side by side on the web surface of the H-shaped steel base, and a flat steel plate is placed on the upper part of the ALC panel. The ALC panel is fixed by covering the cap tree shaped in a shape, a water storage tank is installed on the upper part of the cap tree, and a fire protection water trough shaped in a U shape is attached to the wooden building side of the cap tree to store water. A fire protection wire net is attached to the entire roof of the wooden building above the water trough to prevent the spread of fire due to sparks such as leafboards, and a sprinkler is installed above the fire protection wire net.

In the invention according to claim 2, in addition to the structure according to claim 1, since the fireproof water gutter and the cap tree are integrally formed, the flat steel plate is bent into a substantially self-shaped shape to form the fireproof water gutter integrated type cap tree. It is characterized by.

In the invention according to claim 3, in addition to the structure according to claim 1 or 2, a U-shaped upper streak gutter connected to the fire gutter is installed on a substantially diagonal roof of the fire gutter. The feature is that the ALC panel is made self-supporting by fixing the fireproof water gutter and the upper gutter for crossing the upper muscles to the Kasagi.

In the invention according to claim 4, in addition to the structure according to any one of claims 1 to 3, when a fire breaks out in the vicinity, the water tap of the water storage tank is opened to be used as a fire gutter and an upper gutter. It is characterized in that water is supplied and when the fire prevention gutter and the upper gutter for crossing the upper streaks are full, the water stop valve is operated by a floating ball to stop the water supply.

The invention according to claim 5 is for mounting an arm on a substantially upper and lower center portion of the front ALC panel in order to fix the adjacent front and rear ALC panels in addition to the structure according to any one of claims 1 to 4. Penetrate the bolt, attach and fix the U-shaped arm receiving cover to the arm mounting bolt, and pass the arm mounting bolt through the center of the upper and lower parts of the rear ALC panel, and pass the arm mounting bolt to the arm mounting bolt. Attach and fix the arm cover molded in a shape, and insert the triangular hook part molded at the tip of the joint arm rotatably attached to the arm mounting bolt into the arm receiving cover of the front ALC panel for arm mounting. It is characterized in that the front ALC panel and the rear ALC panel are fixed by hooking on a bolt.

According to the invention of claim 1, the web of the H-shaped steel base formed of H-shaped steel so as to surround the wooden building on the ground surface around the wooden building as a fire protection wall for protecting the wooden building from the fire of the neighboring house. The surface is installed parallel to the ground surface, a plurality of ALC panels are installed side by side on the web surface of the H-shaped steel base, and a flat plate steel plate is formed into a U shape on the upper part of the ALC panel. To fix the ALC panel, install a water storage tank on the upper part of the cap tree, attach a U-shaped fire protection water trough to store water on the wooden building side of the cap tree, and attach the fire protection water trough on the upper part of the cap tree. By installing a fire protection wire net on the entire roof of the wooden building to prevent the spread of fire due to sparks such as leafboards, and by installing a sprinkler on the top of the fire protection wire net, it is possible to construct a fire protection fence with a simple structure at low cost. It became possible to protect the wooden building from the fire of the neighboring house.

According to the invention of claim 2, since the fireproof water gutter and the cap tree are configured as an integrated type, the flat plate steel plate is bent into a self-shaped shape to form the fireproof water gutter integrated type cap tree, so that the structure is simple and the cost is low. It has become possible to form a fireproof water gutter and a Kasagi as an integrated type.

According to the invention of claim 3, a U-shaped upper streak gutter connected to the fire gutter is installed on the substantially diagonal roof of the fire gutter, and the fire gutter and the upper streak gutter are installed on the Kasagi. By making the ALC panel self-supporting by fixing the ALC panel, it became possible to prevent the spread of fire due to sparks such as gutters from surrounding houses with a simple structure and to make the ALC panel self-supporting.

According to the invention of claim 4, when a fire breaks out in the vicinity, the water tap of the water storage tank is opened to supply water to the fire gutter and the upper gutter, and the fire gutter and the upper gutter are filled with water. At that point, the water in the water storage tank can be effectively used by activating the water stop valve with a floating ball to stop the water supply.

According to the invention of claim 5, in order to fix the adjacent front and rear ALC panels, the arm mounting bolt is passed through the substantially upper and lower center portions of the front ALC panel, and the arm mounting bolt is formed in a U shape. Attach and fix the arm receiving cover, and pass the arm mounting bolt through the center of the upper and lower parts of the rear ALC panel, and attach and fix the U-shaped arm cover to the arm mounting bolt. By inserting the triangular hook part formed on the tip of the joint arm rotatably attached to the arm receiving cover of the front ALC panel and hooking it on the arm mounting bolt, the front ALC panel and the rear ALC By fixing the panels, even if the gap between the panel and the neighboring house is narrow and a person cannot work in the gap, it is possible to easily fix the ALC panels before and after the adjacent house.

Hereinafter, embodiments of the present invention will be described.

1 to 9 show embodiments of the present invention.

FIG. 1 shows an H-shaped steel base 4 formed of H-shaped steel (flange width 100 mm, web width 200 mm, flange thickness 8 mm, web thickness 5.5 mm) constituting the fire protection wall of the present invention so as to surround the wooden building 1. The state in which the web surface of the above is installed parallel to the ground surface is shown in a perspective view.

FIG. 2 is a perspective view showing a state in which a plurality of ALC panels 10 (thickness 120 mm, width 600 mm, length 6 m) are installed side by side on the web surface of the H-shaped steel base 4 described with reference to FIG. Further, a state in which the ALC panel fixing device 11 (described in detail with reference to FIG. 8) is attached to the substantially upper and lower central portions of the ALC panel 10 for fixing the adjacent front and rear ALC panels 10 is shown. The ALC panel 10 is a building material mainly made of silica stone, cement, quicklime, and aluminum powder as a foaming agent, and has lightness, strength, and heat insulating properties. Therefore, the ALC panel 10 is the most suitable building material as a fireproof wall to prevent the spread of fire. In order to fix the ALC panels 10 installed side by side on the web surface of the H-shaped steel base 4 to the H-shaped steel base 4, after installing the ALC panel 10 on the web surface of the H-shaped steel base 4, concrete is placed on the web surface. Is poured in to fix the H-shaped steel base 4 and the ALC panel 10.

FIG. 3 shows a fire gutter-integrated Kasagi 19 attached to the upper part of the ALC panel 10 described with reference to FIG. 2 in order to prevent the wooden building 1 from spreading due to sparks falling on the entire roof of the wooden building 1. A fireproof wire net 18 attached to the upper part of the fireproof water gutter integrated Kasagi 19 and a water storage tank 15 for supplying water to the fireproof water gutter integrated Kasagi 19 are shown. In order to extinguish the sparks such as leaf boards falling on the roof of the wooden building 1 in this way, the water in the water storage tank 15 is supplied to the fire-prevention gutter-integrated Kasagi 19 to store the water, and further, the fire-prevention gutter-integrated Kasagi. By attaching a fire protection wire net 18 (material and shape is stainless crimp woven hardware 2.5φ x 30 mm) to prevent the falling of debris burned by the fire on the upper part of 19, the wooden board etc. generated by the nearby fire can be attached. It has become possible to protect the wooden building 1 from fire fragments.

FIG. 4 shows a state in which the fire protection water gutter integrated type Kasagi 19 and the fire protection wire mesh 18 described with reference to FIG. 3 are attached to the upper part of the ALC panel 10.

5 and 6 show the H-shaped steel base 4, the ALC panel 10, and the fire-prevention gutter integrated Kasagi 19 described with reference to FIGS. 2 and 3. FIG. 5 shows a state in which the ALC panel 10 and the fire protection gutter integrated type Kasagi 19 are arranged on the upper part of the H-shaped steel base 4. Further, FIG. 6 shows a state in which the ALC panel 10 and the fire protection gutter integrated type Kasagi 19 are attached to the H-shaped steel base 4 shown in FIG. Further, as shown in the cross-sectional view taken along the line AB of FIG. 6, the fire gutter integrated type Kasagi 19 is formed by bending a galvalume steel plate having a thickness of about 1 mm into a U-shaped Kasagi 26 and a U-shaped fire gutter 25. The height of the Kasagi side surface (A) 32 of the Kasagi 26 is about 100 mm, the width of the top end surface 33 is about 120 mm, the height of the Kasagi side surface (B) 34 is about 100 mm, and the height of the side surface 30 of the fire gutter 25. The width of the bottom surface 31 is 100 mm, the width of the bottom surface 31 is 120 mm, and the bottom surface 31 of the fire gutter 25 and the cap tree side surface (A) 32 of the cap tree 26 are integrally molded in a state of being bent at a right angle. Further, the upper gutter 27 is formed to have the same dimensions as the fire gutter 25, and by connecting the end portion of the upper gutter 27 to the side surface 30 of the fire gutter 25, the water storage tank 15 is as shown in FIG. The water supplied from the water supply pipe 17 is supplied to both the fire gutter 25 and the upper gutter 27, and the upper gutter 27 and the fire gutter integrated Kasagi 19 are combined to form an ALC panel. By covering the upper part of the 10 with the Kasagi 26 of the fireproof water gutter integrated Kasagi 19, the adjacent ALC panels 10 can be fixed and made independent.

FIG. 7a shows a water stop device 40 for efficiently using the water in the water supply tank 15 when the water in the water supply tank 15 is supplied to the fire protection gutter 25. The water stop device 40 stops the water supply 35 by the floating ball 44 that moves up and down by the water supplied from the water supply tank 15 to the fire prevention water trough 25, the operation lever 42 that moves up and down by the up and down of the floating ball 44, and the operation lever 42 up and down. As shown in FIG. 7b, the floating ball 44 floats above the water surface and the water stop valve 41 stops the water in the water supply tank 15 when the fire prevention water trough 25 is full. It is configured as follows. With this configuration, the water in the water storage tank 15 can be used efficiently.

FIG. 8 shows the ALC panel fixing device 11 described with reference to FIG. In FIG. 8a, an arm mounting bolt 62 having a diameter of 10 mm is inserted through the upper and lower center portions at a position approximately 70 mm from the rear end portion 59 of the front ALC panel 60 arranged side by side, and is attached to the threaded portion of the arm mounting bolt 62. A galvalume steel plate with a length of about 1 mm, a width of about 30 mm, a length of about 35 mm, and an arm receiving cover 66 formed in a U shape with a bent part of about 7 mm in the vertical direction are attached, and about from the tip 58 of the later ALC panel 61. An arm mounting bolt 70 with a diameter of 10 mm was inserted through the center of the upper and lower parts at a position of 70 mm, and the arm mounting bolt 70 was further penetrated to form a regular triangle with a thickness of 2.3 to 3.2 at the tip. A generally wedge-shaped joining arm 68 with a length of about 170 mm to which the hook portion 67 is fixed is rotatably attached, and a galvalume steel plate with a thickness of about 1 mm is attached to the threaded portion at the tip of the arm mounting bolt 70 to form a front width 56. Is about 23 mm, the rear width 57 is about 27 mm, the length is about 35 mm, and the bent portion is about 7 mm both above and below, and the arm receiving cover 66 formed in a substantially U shape is attached. In FIG. 8c, the hook portion 67 of the joining arm 68 attached to the joining metal fitting 69 by bringing the front ALC panel 60 and the rear ALC panel 61 described in FIG. 8a into contact with each other, and the arm receiving cover 66 of the metal fitting 65 It shows a state in which the hooking portion 67 attached to the tip of the joining arm 68 is hooked on the arm mounting bolt 62 by inserting it into the arm inserting portion 64. By hooking the hooking portion 67 attached to the tip of the joining arm 68 on the arm mounting bolt 62 in this way, the arm mounting bolt 62 and the arm mounting bolt 70 are fixed, and the front ALC panel 60 and the rear ALC panel 60 are fixed. 61 is fixed.

In FIG. 8c, when the hooking portion 67 of the joining arm 68 comes into contact with the inside of the arm receiving cover 66 and the hooking portion 67 of the joining arm 68 does not fall to the arm mounting bolt 62 due to its own weight, FIG. 8c As shown in the enlarged view of, the upper end of the arm receiving cover 66 is bent into a U shape at a length of about 3 mm and an angle of about 30 degrees to form the bent portion 73, and the arm insertion portion 64 of the arm receiving cover 66 is formed. When the joining arm 68 is inserted into the joint arm 68, the tip of the hooking portion 67 formed on the tip of the joining arm 68 abuts on the bent portion 73, so that the tip of the hooking portion 67 is forcibly dropped and the hooking portion 67 The tip can be hooked on the arm mounting bolt 62.

FIG. 9 shows a state in which the sprinkler 90 is attached to the upper portion of the fire protection wire mesh 18 described with reference to FIG. A water stopcock (not shown) is attached to the water supply pipe 92 in order to supply the water in the water storage tank 15 to the sprinkler 90.

With this configuration, even if a fire breaks out in the neighboring house, the ALC panel 10 prevents the spread of fire, and even if sparks such as wood leaf boards fall due to a nearby fire, the fire protection wire net burns. It has become possible to prevent debris such as lumber from falling, and to prevent the spread of fire by extinguishing the sparks with the water stored in the fire protection water trough.

Although the ALC fire protection wall according to the present invention has been described in detail based on the above-described embodiments, the present invention is not limited to the above-described embodiments, and various types are described without departing from the spirit of the invention. Of course, even if the above is modified, it belongs to the technical scope of the present invention.

A perspective view shows a state in which the web surface of the H-shaped steel base formed of H-shaped steel so as to surround the wooden building according to the embodiment of the present invention is installed parallel to the ground surface. A perspective view shows a state in which the ALC panel is installed on the web surface of the H-shaped steel base shown in FIG. 1 according to the embodiment. A perspective view shows a state in which a fire protection gutter integrated type Kasagi, a fire protection wire mesh, and a water storage tank are arranged on the ALC panel shown in FIG. 2 according to the same embodiment. A perspective view shows a state in which the fire protection gutter integrated type Kasagi, the fire protection wire mesh, and the water storage tank described in FIG. 3 according to the embodiment are mounted on the ALC panel. The enlarged state of the fire protection gutter integrated type Kasagi shown in FIG. 3 according to the embodiment is shown in a perspective view. A state in which the fire protection gutter integrated type Kasagi shown in FIG. 5 according to the same embodiment is attached to the ALC panel is shown. A water stop device for supplying and stopping the water in the water storage tank to the fire protection gutter integrated Kasagi according to the same embodiment is shown. The ALC panel fixing device for fixing the front ALC panel and the rear ALC panel according to the same embodiment is shown in a perspective view. A state in which a sprinkler is arranged above the fire protection gutter integrated cap tree and the fire protection wire mesh shown in FIG. 3 according to the same embodiment is shown.

1 Wooden building 2 Neighboring house 3 Road 4 H-shaped steel base 10 ALC panel 11 ALC panel fixing device 14 Fixing bracket 15 Water storage tank 16 Water supply 17 Water supply pipe 18 Fire protection wire net 19 Fire protection gutter integrated Kasagi 20 Fire protection fence 24 Web surface 25 Fire protection gutter 26 Kasagi 27 Upper bracing gutter 30 Side 31 Bottom 32 Kasagi side (A)
33 Top surface 34 Kasagi side surface (B)
35 Water supply 40 Water stop device 41 Water stop valve 42 Operation lever 43 Support rod 44 Floating ball 46 Support point 56 Front width 57 Rear width 58 Tip part 59 Rear end 60 Front ALC panel 61 Rear ALC panel 62 Arm mounting bolt 63 Nut 64 Arm insertion part 65 Receiving metal 66 Arm receiving cover 67 Hooking part 68 Joint arm 69 Joint metal fitting 70 Arm mounting bolt 71 Nut 72 Arm cover 73 Bending part 90 Sprinkler 91 Water supply 92 Water supply pipe

Claims (5)

At the fire protection wall to protect the wooden building from the fire of the neighboring house
On the ground surface around the wooden building, the web surface of the H-shaped steel base formed of H-shaped steel so as to surround the wooden building was installed parallel to the ground surface.
A plurality of ALC panels are installed side by side on the web surface of the H-shaped steel base.
The ALC panel is fixed by covering the upper part of the ALC panel with a cap tree formed by forming a flat steel plate into a U shape.
A water storage tank is installed above the Kasagi,
A U-shaped fire protection gutter is attached to the wooden building side of the Kasagi to store water.
A fire-prevention wire mesh is attached to the entire roof of the wooden building above the fire-prevention gutter to prevent the spread of fire due to sparks such as leaf boards.
Further, an ALC fire protection fence characterized in that a sprinkler is installed on the upper part of the fire protection wire mesh. The ALC fire protection wall according to claim 1, wherein a flat plate steel plate is bent into a self-shaped shape to form a fire protection water gutter integrated cap tree in order to form a fire protection water gutter and a cap tree as an integrated type. A U-shaped upper gutter connected to the fire gutter was installed on the almost diagonal roof of the fire gutter, and the ALC panel was made independent by fixing the fire gutter and the upper gutter to the Kasagi. The ALC fire protection wall according to claim 1 or 2, characterized in that. When a fire breaks out in the neighborhood, the water tap of the water storage tank is opened to supply water to the fire gutter and the upper gutter, and when the fire gutter and the upper gutter are full, a floating ball is used to stop the water. The ALC fire fence according to any one of claims 1 to 3, wherein the water supply is stopped by operating the ALC fire fence. In order to fix the adjacent front and rear ALC panels, the arm mounting bolts are passed through the upper and lower center of the front ALC panel, and the U-shaped arm receiving cover is attached and fixed to the arm mounting bolts. The arm mounting bolt is passed through the center of the upper and lower parts of the ALC panel, and the U-shaped arm cover is attached and fixed to the arm mounting bolt, and the tip of the joining arm is rotatably attached to the arm mounting bolt. The claim is characterized in that the front ALC panel and the rear ALC panel are fixed by inserting the triangular hooking portion formed in the above into the arm receiving cover of the front ALC panel and hooking the arm mounting bolt. The ALC fire protection wall according to any one of 1 to 4.

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