JP7403749B2 - Water-cooled steel plate fire fence - Google Patents

Description

The present invention relates to a fire fence for preventing the spread of fire in wooden buildings.

Traditionally, at the scene of a fire in a residential area with densely populated buildings, large amounts of water are sprayed onto the house at the source of the fire to prevent the fire from spreading to the buildings in the vicinity of the fire, and at the same time water is sprayed onto neighboring buildings to prevent the fire from spreading to neighboring buildings. The fires were stopped from spreading by spraying water on houses to wet them.

However, sometimes water cannot be completely prevented from spreading because the water does not reach the home where the fire started, or when a large amount of water is sprayed onto a neighbor's house to stop the spread of the fire, water seeps into the house and the interior becomes flooded. Sometimes it happened.

One of the methods currently in practical use to prevent the spread of fire is to design the building itself as a firewall. This method increases the reliability of preventing the spread of fire, but has the problem of increasing construction costs.

In addition, in recent years, warnings have been frequently issued regarding the possibility of an earthquake directly hitting the Tokyo metropolitan area or a mega-Nankai Trough earthquake.In particular, there are many areas in urban areas where old wooden houses are densely packed. Since there is an extremely high possibility that a fire will occur due to a huge earthquake, immediate countermeasures are needed.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a fire prevention wall that has a simple structure and can prevent the spread of fire to a wooden building.

In order to solve this problem, the invention according to claim 1 provides a fire prevention fence for protecting a wooden building from a fire caused by a neighboring house, which is formed of H-shaped steel on the ground surface around the wooden building so as to surround the wooden building. The web surface of the H-shaped steel foundation is installed parallel to the ground surface, and on the web surface of the H-shaped steel foundation, a plurality of rectangular corrugated steel plates formed from flat steel plates are placed so that the peaks and troughs are along the substantially vertical direction. The square corrugated steel plates are installed side by side , and the square corrugated steel plates are fixed by covering the top of the square corrugated steel plates with a cap made by forming a flat steel plate into a U-shape. A U-shaped fire gutter is installed to store water, and a fire gutter is installed on the entire roof of the wooden building above the fire gutter to prevent the spread of fire due to falling pieces of wood, such as wooden boards, from a fire in a neighboring house. The present invention is characterized in that a fireproof wire mesh is attached, and a sprinkler is further installed above the fireproof wire mesh.

The invention set forth in claim 2 provides, in addition to the structure set forth in claim 1, that in order to configure the fire protection water gutter and the cap as an integrated structure, the fire protection water gutter integrated cap is formed by bending a flat steel plate into approximately its own shape. It is characterized by

The invention according to claim 3, in addition to the structure according to claim 1 or 2, fixes a thermal cooling steel pipe to the valley part of the square corrugated steel plate in order to prevent the square corrugated steel plate from becoming hot due to a fire in a neighboring house. The system is characterized in that the water in the water storage tank is stored in a thermal cooling steel pipe via a fireproof water gutter.

The invention set forth in claim 4 provides, in addition to the structure set forth in any one of claims 1 to 3, a U-shaped upper brace connected to the fire gutter on the generally diagonal roof upper part of the fire gutter. The feature is that the rectangular corrugated steel plate is made to stand on its own by installing a water gutter and fixing the fire protection water gutter and upper bracing gutter to the Kasagi.

The invention according to claim 5 provides a water tank hydrant that is opened when a fire breaks out nearby and supplies water to a fire prevention water gutter and an upper bracing gutter, a water stop valve that stops water supply, and a fire prevention system. The fire protection water gutter is characterized by comprising a floating ball installed in the fire protection water gutter to operate a water stop valve when the water gutter and the upper bracing gutter become full of water.

In addition to the structure described in any one of claims 1 to 5, the invention according to claim 6 includes an arm approximately at the upper and lower center of the front square corrugated steel plate in order to fix the adjacent front and rear square corrugated steel plates. Pass the mounting bolt through the arm mounting bolt, attach and fix the joint arm receiving cover formed in a U-shape to the arm mounting bolt, and pass the arm mounting bolt through the approximately vertical center of the later rectangular corrugated steel plate. Attach and fix the U-shaped joint arm cover, and insert the triangular hook formed at the tip of the joint arm, which is rotatably attached to the arm mounting bolt, into the joint arm receiving cover to attach the arm. It is characterized by fixing the front square corrugated steel plate and the rear square corrugated steel plate by hooking them on the bolts.

According to the invention described in claim 1, in a fire prevention fence for protecting a wooden building from a fire in a neighboring house, a web of an H-shaped steel foundation formed of H-shaped steel so as to surround the wooden building on the ground surface around the wooden building. A plurality of rectangular corrugated steel plates, which are formed from flat steel plates into rectangular corrugated shapes, are installed side by side on the web surface of the H-shaped steel foundation , with their surfaces parallel to the ground surface, so that the peaks and valleys are along the substantially vertical direction. , the square corrugated steel plate is fixed by covering the top of the square corrugated steel plate with a cap made of a flat steel plate formed into a U-shape, and a water storage tank is installed on the top of the cap, and water is stored on the wooden building side of the cap. Installing a U-shaped fire prevention water gutter, and installing a fire prevention wire mesh over the entire roof of the wooden building above the fire prevention water gutter to prevent the spread of fire due to falling debris such as wooden boards caused by a fire in a neighboring house . Furthermore, by installing a sprinkler on the top of the fireproof wire mesh, it has become possible to construct a fireproof fence with a simple structure and at low cost, making it possible to protect the building from fires caused by neighboring houses, etc.

According to the invention set forth in claim 2, in order to configure the fire protection water gutter and the cap as an integrated structure, the flat steel plate is bent approximately into its own shape to form the fire protection water gutter integrated cap, thereby making the structure simple and inexpensive. It became possible to form a water gutter that also serves as a Kasagi.

According to the third aspect of the invention, in order to prevent the rectangular corrugated steel plate from becoming hot due to a fire in a neighboring house, a thermal cooling steel pipe is fixed to the trough of the rectangular corrugated steel plate, and the water in the water storage tank is drained into the fire prevention water gutter. By storing water in the heat-cooling steel pipes through the pipes, it became possible to prevent the rectangular corrugated steel plates from becoming too hot with a simple structure.

According to the invention set forth in claim 4, a U-shaped upper bracing gutter connected to the fire gutter is installed on the generally diagonal roof top of the fire gutter, and the fire gutter and upper bracing gutter are connected to the fire gutter. By fixing the gutter, the rectangular corrugated steel plate can be made to stand on its own, thereby preventing the spread of fire caused by sparks from wood boards from surrounding houses, and making it possible to make the rectangular corrugated steel plate self-supporting with a simple structure and at low cost. Ta.

According to the invention as set forth in claim 5, there is provided a water tank water supply valve that is opened when a fire breaks out nearby and supplies water to the fire prevention water gutter and the upper bracing gutter , and a water stop valve that stops the water supply. , a floating ball installed in the fire gutter to activate the water stop valve when the fire gutter and upper bracing gutter are full of water, effectively utilizing the water in the water storage tank. It became possible to utilize it.

According to the invention set forth in claim 6, in order to fix the adjacent front and rear rectangular corrugated steel plates, the arm mounting bolt is passed through approximately the vertical center of the front rectangular corrugated steel plate, and the arm mounting bolt is formed in a U-shape. Attach and fix the formed joint arm receiving cover, pass the arm mounting bolt through approximately the upper and lower center of the subsequent rectangular corrugated steel plate, and attach and secure the joint arm cover formed in a U-shape to the arm mounting bolt. By inserting the triangular hook formed at the tip of the joining arm that is rotatably attached to the arm mounting bolt into the joining arm receiving cover and hooking it to the arm mounting bolt, the front square corrugated steel plate and the rear By fixing the rectangular corrugated steel plates, it is now possible to easily fix adjacent ALC panels even in cases where the gap between the panels is narrow and it is difficult for people to work inside the gap.

Embodiments of this invention will be described below.

Embodiments of the present invention are shown in FIGS. 1 to 9.

FIG. 1 shows a web of an H-shaped steel foundation 4 formed of H-shaped steel (flange width 50 mm, web width 100 mm, flange thickness 7 mm, web thickness 5 mm) constituting the fire prevention fence of the present invention so as to surround a wooden building 1. A perspective view shows the surface installed parallel to the ground surface.

FIG. 2 is a perspective view showing a state in which a plurality of rectangular corrugated steel plates 10 (described in detail in FIG. 5b) are installed side by side on the web surface of the H-shaped steel base 4 described in FIG. 1. Furthermore, a square corrugated steel plate fixing device 11 (described in detail in FIG. 8) is attached to approximately the vertical center of the square corrugated steel plate 10 in order to fix the adjacent front and rear square corrugated steel plates 10. In order to fix the rectangular corrugated steel plates 10 installed side by side on the web surface of the H-type steel base 4 configured in this way to the H-type steel base 4, the rectangular corrugated steel plates 10 were installed on the web surface of the H-type steel base 4. After that, concrete is poured onto the web surface to fix the H-shaped steel base 4 and square corrugated steel plate 10.

FIG. 3 shows a fire prevention water gutter-integrated cap 19 installed on the top of the square corrugated steel plate 10 explained in FIG. , shows a fireproof wire mesh 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. In this way, in order to extinguish sparks from wooden boards, etc. that fall on the top surface of the roof of the wooden building 1, the water in the water storage tank 15 is stored in the fire prevention water gutter integrated type Kasagi 19, and the water is further stored in the upper part of the fire prevention water gutter integrated type Kasagi 19. By attaching a fire prevention wire mesh 18 (material and shape is stainless steel crimp woven hardware 2.5φ x 30mm) to prevent the falling of pieces of wood from a nearby fire, It became possible to protect wooden building 1 from

FIG. 4 shows a state in which the fire protection water gutter integrated type Kasagi 19, the fire protection wire mesh 18, and the water storage tank 15 described in FIG. 3 are attached to the upper part of the square corrugated steel plate 10.

FIG. 5 shows the H-shaped steel base 4, the rectangular corrugated steel plate 10, and the integrated fire gutter cap 19 described in FIGS. 2 and 3. FIG. 5a shows a state in which a thermal cooling steel pipe 28 is installed in the trough 29 of the square corrugated steel plate 10 to suppress a rise in temperature of the square corrugated steel plate 10 and is disposed in front. The thermal cooling steel pipe 28 is a square steel pipe with a thickness of approximately 1.6 mm, a cross-sectional dimension of approximately 50 mm x approximately 30 mm, and a length approximately the same as that of the square corrugated steel plate 10. is formed in a sealed state. By fitting and fixing the thermal cooling steel pipe 28 formed in this way into the valley portion 29 of the square corrugated steel plate 10 shown in FIG. 5b, it is possible to prevent the square corrugated steel plate 10 from becoming hot due to a fire in a neighboring house. Ta.

FIG. 5b shows the rectangular corrugated steel sheet 10 in cross-section. The square corrugated steel plate 10 is a corrugated steel plate obtained by bending and forming a flat galvalume steel plate with a thickness of about 1 mm, and has a total width A of 614 mm, a valley dimension B of 58.6 mm, a peak dimension C of 146.1 mm, and an end dimension D of 15 mm. , the valley bottom dimension E is 38.6 mm, the mountain bottom dimension F is 166.1 mm, the mountain height dimension G is 50 mm, and the end dimension H is 15 mm.

FIG. 6 shows a state in which a rectangular corrugated steel plate 10, a thermal cooling steel pipe 28, and a fire protection water gutter-integrated cap 19 are attached to the H-shaped steel base 4 shown in FIG. Furthermore, as shown in the cross-sectional view of AB in FIG. The height of the Kasagi side surface (A) 43 forming the Kasagi 26 is approximately 100 mm, the width of the top surface 44 is approximately 120 mm, and the height of the Kasagi side surface (B) 45 is approximately 100 mm. The height of the side surface 40 is 100 mm, and the width of the bottom surface 42 is 120 mm. The bottom surface 42 of the fire gutter 25 and the side surface (A) 43 of the cap 26 are bent at right angles and are integrally molded. Further, the upper bracing gutter 27 is formed with the same cross-sectional shape and the same dimensions as the fire gutter 25, and by connecting the end of the upper bracing gutter 27 to the side surface 40 of the fire gutter 25, as shown in FIG. The water supplied from the water storage tank 15 through the water supply pipe 17 is also supplied to the upper bracing gutter 27 via the fire gutter 25, and the upper bracing gutter 27 and the fire gutter integrated Kasagi 19 are combined. By covering the top of the rectangular corrugated steel plate 10 with the cap 26 of the fire protection water gutter integrated type cap 19, it became possible to fix the adjacent rectangular corrugated steel plates 10 and make them independent.

FIG. 7 shows a water stop device 55 for efficiently utilizing the water in the water tank 15 when the water in the water tank 15 is supplied to the fire gutter 25. As shown in FIG. 7a, the water stop device 55 includes a floating ball 59 that moves up and down with the water supplied from the water supply tank 15 to the fire protection gutter 25, and the floating ball 59 moves up and down via the support rod 58 and the fulcrum 60. It is composed of an operating lever 57 to stop the water supply 61 and a water stop valve 56 for stopping the water supply 61 by moving the operating lever 57 up and down.As shown in FIG. The water stop valve 56 that floats upward is configured to stop the water in the water supply tank 15. With this configuration, the water in the water storage tank 15 can be used efficiently.

FIG. 8 shows the rectangular corrugated steel plate fixing device 11 described in FIG. 2. In FIG. 8a, an arm mounting bolt 74 with a diameter of 10 mm is passed through and attached to the top and bottom center of the front square corrugated steel plates 70 at a position approximately 70 mm from the rear end 68 of the front square corrugated steel plates 70 arranged side by side. Attach the joining arm receiving cover 73 made of galvalume steel plate with a thickness of about 1 mm to the threaded part, and which is formed into a U-shape with a height of about 30 mm, a length of about 35 mm, and a bent portion of about 7 mm both at the top and bottom, and attach it to the screw part, and attach the joint arm receiving cover 73 made of galvalume steel plate with a thickness of about 1 mm. At a position approximately 70 mm from the tip 69 of 71, an arm mounting bolt 78 with a diameter of 10 mm is passed through and attached to the upper and lower center, and an arm mounting bolt 78 with a thickness of 2.3 mm to the tip is attached to the arm mounting bolt 78 that is passed through and attached. A generally wedge-shaped joint arm 76 with a thickness of 2.3 mm to 3.2 mm and a length of about 170 mm is attached to a fixed hook portion 77 shaped into an equilateral triangle of 3.2 mm, and is further rotatably attached for arm attachment. The screw part at the tip of the bolt 78 is made of a galvalume steel plate with a thickness of about 1 mm, and the front width 84 is about 23 mm, the rear width 85 is about 27 mm, the length is about 35 mm, and the bent part is about 7 mm both at the top and bottom, and is formed into a roughly U-shape. The state in which the joining arm receiving cover 81 is attached is shown. In FIG. 8c, the hook portion 77 of the joining arm 76 attached to the joining hardware 79 is inserted into the arm of the joining arm receiving cover 73 by joining the front square corrugated steel plate 70 and the rear square corrugated steel plate 71 explained in FIG. 8a. 75 and the tip of the hook portion 77 passes over the arm attachment bolt 74 and falls due to its own weight, so that the hook portion 77 attached to the tip of the joint arm 76 is hooked on the arm attachment bolt 74. . By hooking the hook 77 attached to the tip of the joint arm 76 onto the arm attachment bolt 74, the arm attachment bolt 74 and the arm attachment bolt 78 are fixed, and the front square corrugated steel plate 70 and the rear corner A corrugated steel plate 71 is fixed.

In addition, if the hook part 77 of the joint arm 76 contacts the inside of the joint arm receiving cover 73 in FIG. 8c and the hook part 77 of the joint arm 76 does not fall onto the arm attachment bolt 74 due to its own weight, As shown in the enlarged view 8c, the upper end of the joining arm receiving cover 73 is bent into a truncated shape with a length of about 3 mm and an angle of about 30 degrees to form a bent part 83, and the joining arm is inserted into the arm insertion part 75. 76, the tip of the hook part 77 formed at the tip of the joint arm 76 is butted against the bent part 83 and the hook part 77 is forcibly dropped, so that the tip of the hook part 67 is attached to the arm. It is now possible to hook it onto the bolt 62.

FIG. 9 shows a state in which a sprinkler 90 is attached to the upper part of the fireproof wire mesh 18 described in FIG. 4. A stop valve (not shown) is attached to the water supply pipe 92 to supply water from the water storage tank 15 to the sprinkler 90.

With this configuration, even if a fire breaks out in a neighboring house, the rectangular corrugated steel plate 10 prevents the spread of the fire, and even if sparks from wooden leaf boards or the like fall from a neighboring fire, the fireproof wire mesh 18 and the fireproof The water stored in the water gutter 25 and the upper bracing gutter 27 can extinguish sparks and prevent the spread of fire.

Although the water-cooled steel plate fire fence according to the present invention has been described above in detail based on the embodiments, the present invention is not limited to the above embodiments and does not depart from the spirit of the invention. It goes without saying that even if various modifications are made within the scope, they still fall within the technical scope of the present invention.

Although the heat aging steel pipe 28 is described as a square steel pipe in FIG. 5, it is of course possible to use a round steel pipe.

1 is a perspective view showing a state in which an H-shaped steel foundation is installed around a wooden house according to an embodiment of the present invention. A perspective view showing a state in which a square corrugated steel plate is installed on the H-shaped steel base shown in FIG. 1 according to the same embodiment. FIG. 3 is a perspective view showing a fire protection water gutter integral type cap, a fire protection wire mesh, and a water storage tank that are attached to the upper part of the rectangular corrugated steel plate shown in FIG. 2 according to the same embodiment. FIG. 4 is a perspective view showing a state in which the integrated fire gutter cap, fire wire mesh, and water storage tank shown in FIG. 3 are attached to the upper part of a rectangular corrugated steel plate according to the same embodiment. The rectangular corrugated steel plate shown in FIGS. 2 and 3 according to the same embodiment is shown in a cross-sectional view, and a perspective view shows a state in which thermal cooling steel pipes are arranged on the rectangular corrugated steel plate. A perspective view and a sectional view show a state in which a fire gutter integrated type capacitor according to the same embodiment is attached to the upper part of a rectangular corrugated steel plate. A sectional view showing a water stop device attached to a water storage tank according to the same embodiment. A perspective view shows a square corrugated steel plate fixing device for fixing a front square corrugated steel plate and a rear square corrugated steel plate according to the same embodiment. A perspective view shows a sprinkler installed on the fireproof wire mesh shown in FIG. 4 according to the same embodiment.

A Overall width B Valley dimension C Mountain dimension D Edge dimension E Valley bottom dimension F Mountain bottom dimension G Mountain height dimension H Edge dimension 1 Wooden building 2 Neighboring house 3 Road 4 H-shaped steel foundation 10 Square corrugated steel plate 11 Square corrugated steel plate fixing device 14 Fixing bracket 15 Water storage Tank 16 Water supply 17 Water supply pipe 18 Fire prevention wire mesh 19 Fire prevention water gutter integral type Kasagi 25 Fire prevention water gutter 26 Kasagi 27 Upper brace gutter 28 Heat cooling steel pipe 29 Valley 40 Side surface 41 Water supply hole 42 Bottom surface 43 Kasagi side surface (A)
44 Top surface 45 Kasagi side (B)
46 Water supply 55 Water stop device 56 Water stop valve 57 Operating lever 58 Support rod 59 Floating ball 60 Fulcrum 61 Water supply 68 Rear end 69 Tip 70 Front square corrugated steel plate 71 Rear square corrugated steel plate 72 Nut 73 Joint arm receiving cover 74 Arm attachment bolt 75 Arm insertion part 76 Joint arm 77 Hook part 78 Arm attachment bolt 79 Joint hardware 80 Nut 81 Joint arm cover 82 Receiving hardware 83 Bend part 84 Front width 85 Rear width 90 Sprinkler 91 Water supply 92 Water supply pipe

Claims (6)

In fire walls to protect wooden buildings from fires caused by neighboring houses,
The web surface of the H-shaped steel foundation, which is made of H-shaped steel, is installed parallel to the ground surface around the wooden building so as to surround the wooden building.
On the web surface of the H-shaped steel base, a plurality of rectangular corrugated steel plates formed by forming flat steel plates into rectangular corrugated shapes are installed side by side so that the peaks and valleys are along the substantially vertical direction ,
The square corrugated steel plate is fixed by covering the top of the square corrugated steel plate with a cap made of a flat steel plate formed into a U-shape.
A water storage tank is installed above the Kasagi,
A U-shaped fire gutter was installed on the side of the wooden building in Kasagi to store water.
Installing a fireproof wire mesh over the entire roof of the wooden building above the firewater gutter to prevent the spread of fire due to falling debris such as wooden boards caused by a fire in a neighboring house ;
A water-cooled steel plate fire fence further comprising a sprinkler installed above the fire wire mesh. 2. The water-cooled steel plate fire fence according to claim 1, wherein the fire gutter integrated cap is formed by bending a flat steel plate substantially into its own shape to form the fire gutter and the cap as an integrated structure. In order to prevent the rectangular corrugated steel plate from becoming hot due to a fire in a neighboring house, a thermal cooling steel pipe was fixed in the valley of the rectangular corrugated steel plate, and water from the water storage tank was stored in the thermal cooling steel pipe via the fire gutter. The water-cooled steel plate fire fence according to claim 1 or 2, characterized in that: A U-shaped upper bracing gutter connected to the fire gutter is installed on the generally diagonal top of the roof, and the square corrugated steel plate becomes self-supporting by fixing the fire gutter and upper bracing gutter to the Kasagi. The water-cooled steel plate fire fence according to any one of claims 1 to 3, characterized in that: The water tank hydrant, which is opened in the event of a fire in the neighborhood and supplies water to the fire gutter and upper brace gutter, the water stop valve that stops the water supply, and the fire gutter and upper brace gutter are filled with water. 5. The water-cooled type according to any one of claims 1 to 4 , further comprising: a floating ball installed in a fire gutter to operate a water stop valve when Steel plate fire fence. In order to fix the adjacent front and rear square corrugated steel plates, an arm mounting bolt is passed through the upper and lower center of the front square corrugated steel plate, and a U-shaped joining arm receiving cover is attached and fixed to the arm mounting bolt. , An arm mounting bolt was passed through approximately the upper and lower center of the later square corrugated steel plate, and a U-shaped joint arm cover was attached and fixed to the arm mounting bolt, and was rotatably attached to the arm mounting bolt. The front square corrugated steel plate and the rear square corrugated steel plate are fixed by inserting the triangular hook formed at the tip of the joint arm into the joint arm receiving cover and hooking it on the arm mounting bolt. The water-cooled steel plate fire fence according to any one of claims 1 to 5.

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