KR102548393B1 - Fire hydrant for underground burial - Google Patents

Abstract

The present invention relates to a fire hydrant box for underground burial. The fire hydrant box for underground burial includes: a fire hydrant box having a pair of hinged manhole covers installed in an upper part and having firefighting equipment installed therein; a main firefighting water supply pipe installed on one inner side of the fire hydrant box to supply firefighting water, wherein the main firefighting water supply pipe is branched between an angle valve and a main valve having an opening/closing handle provided near a firefighting water inlet to be connected to a firefighting hose; a plurality of multistage cylinders having multistage cylinder rods connected to both sides of a table support in which a drum rotation table is installed, and having a lower end supported by the bottom of the fire hydrant box to move a hose reel up and down; the drum rotation table having a plurality of fixtures on which the hose reel is rotatably installed, and installed to be rotatable 360 degrees on the table support installed on the plurality of multistage cylinders; and a gas shock absorber connected to one side of the inner surface of the manhole covers such that the pair of manhole covers can be opened, and having a lower end individually installed in a cover frame of the manhole covers to fix the opening/closing state of the pair of manhole covers. The fire hydrant box can safely protect firefighting equipment such as a hose reel part of a fire hydrant box normally buried under the ground, and can improve space usability by normally preventing the hose reel part from protruding above the ground, and, when a firefighting hose is pulled in a state in which the hose reel is raised due to water pressure, the drum rotation table is rotated and located on the same line as a direction, in which the firefighting hose is unwound and moved, to enable the firefighting hose to be easily unwound without being tangled or bent, which can lead to an effect of facilitating fire suppression.

Description

Fire hydrant for underground burial

The present invention relates to a fire hydrant buried underground, and more particularly, to a fire hydrant so that a fire extinguisher can be quickly extinguished in case of fire by installing a fire hydrant in an underground manhole such as a sidewalk, road, etc. in a market, a busy place, or an area with limited space After opening the manhole cover of the main valve, the cylinder rises by water pressure, and when the fire hose reel is raised to the ground, when the fire hose is pulled, the fire hose reel rotates left and right and is located in the direction in which the fire hose is released. It relates to a fire extinguisher for burial in the ground so that the fire can be quickly extinguished by being smoothly released.

In general, firefighting devices are intended to quickly extinguish a fire when a fire occurs, and these firefighting devices can be divided into fixed firefighting devices and mobile firefighting devices. Mobile firefighting devices include firefighting vehicles, pump vehicles, water tank vehicles, chemical vehicles, elevated and articulated ladder vehicles, unmanned waterproof tower vehicles, auxiliary vehicles, rescue vehicles, excavators, firefighting aircraft, and fireboats.

On the other hand, as a fixed firefighting device, a fire hose fixed to a wall or the ground and provided with fire extinguishing water, and a water gun or nozzle connected to the fire hose to spray fire extinguishing water at high pressure may be mentioned.

However, since the fixed fire extinguishing device is fixedly disposed on the wall and the ground, structurally, it has a problem in that it cannot operate normally when a fire occurs due to severe contamination or rust due to snow, rain, and dust for a long time. In addition, the space occupied by the fixed fire-fighting device fixed to the wall or the ground is large, and the space utilization is not good, and a safety accident occurs when people other than the fire-fighting manager arbitrarily manipulate the fixed fire-fighting device. In particular, when a firefighting device is exposed to the ground in a traditional market, a cultural property-related facility or a temple, there is a concern that the surrounding aesthetics may be damaged by the firefighting device.

In order to solve these problems, the following patent document, Korean Patent Publication No. 10-2011-0114389, discloses that firefighting equipment that sprays fluids such as a water gun, an underground fire hydrant, and a hose reel are placed in the ground when a fire does not occur, and , In case of fire, the firefighting equipment placed underground is lifted to the ground to quickly extinguish the fire to improve space utilization, prevent firefighting equipment from being polluted or damaged by snow, rain and dust, and firefighting equipment as a firefighting manager The performance of firefighting equipment can be improved and the maintenance of firefighting equipment can be done more easily by preventing other people from operating it, and the firefighting equipment is described so that the aesthetics of facilities such as cultural assets and temples are not damaged by firefighting equipment. there is.

However, since the firefighting apparatus of the prior art installs a transfer plate on the upper part of the multi-stage cylinder rod and arranges a hose reel with a fire hose wound on the upper part of the transfer plate, the lifting structure of the hose reel is structurally complicated and the installation cost is high. Since the height of the fire hydrant increases by half (½) of the height of the hose reel and the height of the fire hydrant is increased, there is an inconvenient problem in that the fire extinguisher must be buried by digging the underground by half (½) of the height of the hose reel during burial.

In addition, since the prior art firefighting device supports the hose reel by installing a separate rotation unit when the hose reel is installed on the top of the transfer plate, the structure for supporting the hose reel is structurally complicated and the rotation unit is installed. As a result, there was a problem in that the installation cost increased.

In the prior art firefighting device, a drain valve is installed on the drain pipe of the descending unit so that the fluid filled inside the multi-stage cylinder and the second multi-stage cylinder is drained, but structurally, the drain valve drains all of the water remaining in the cylinder and the connecting hose. There was a problem in that it could not drain automatically, causing a risk of freezing in winter.

Publication No. 10-2011-0114389 (published date: 2011.10.19)

The present invention is to solve the above problems of the prior art,

Fire hydrants are installed in underground manholes such as markets, busy places, and sidewalks and roads in areas with limited space. To quickly extinguish a fire, open the manhole cover of the hydrant, open the main valve, and open the cylinder by water pressure. As the fire hose reel rises to the ground, when the fire hose is pulled, the fire hose reel rotates left and right and is positioned in the direction in which the fire hose is released, so that the fire hose is smoothly released and the fire can be quickly extinguished. ;

By rotating left and right by the rotating member, the purpose of extinguishing the fire is easy because the fire hose is easily released when the fire hose is twisted or caught when the fire hose is pulled;

After extinguishing, when the main valve is closed and the angle valve is opened, the hose reel automatically descends by its own weight to be embedded in the fire fighting box of the underground manhole, and at the same time to prevent freezing and bursting by residual fire extinguishing water in winter Its purpose is to provide a fire hydrant box opening system for underground burial.

The present invention is a means for achieving the above object,

A fire hydrant with a pair of casement manhole covers installed on the top and a fire fighting device installed on the inside; A main fire extinguishing water supply pipe installed on one side of the inside of the fire hydrant to supply fire extinguishing water; The main fire extinguishing water supply pipe includes an angle valve branched between the main valve having an opening and closing handle on the fire water inlet side and the angle valve and connected to the fire hose; A multi-stage cylinder rod is connected to both sides of the table support on which the drum rotation table is installed, and the lower end is supported on the bottom of the fire hydrant box to raise and lower the hose reel; a drum rotary table provided with a plurality of holders on which hose reels are rotatably installed and installed 360° rotatably on table supports installed on a plurality of multi-stage cylinders; It is connected to one side of the inner surface of the manhole cover to open the pair of manhole covers, and the lower part is installed on the cover frame of the manhole cover, respectively, to fix the pair of manhole covers in an open and closed state. A fire hydrant is provided.

In the pair of manhole covers of the present invention, while the lower end is supported on the lid frame, a plurality of gas shock absorbers are installed on the left and right inner surfaces of the gas shock absorbers, and a 'U' shaped combination with packing installed in the center of the pair of manhole covers. It is characterized in that the recessed part and the combined convex part are formed to block the inflow of rainwater, foreign matter, etc.

In the multi-stage cylinder of the present invention, firefighting water flows in through a cylinder water pressure pipe connected to the main fire extinguishing water supply pipe by a branch pipe and ascends and descends, and fire extinguishing water is discharged and descends by opening the second automatic drain valve installed in the cylinder water pressure pipe. It is characterized in that this is made.

The drum rotary table of the present invention is coupled to the multi-stage cylinder rods of the multi-stage cylinders made of a plurality of table supports that move up and down in conjunction with the multi-stage cylinders; a table member rotatably installed on the top of the table stand; It is characterized in that it includes; a plurality of wheel members installed under the table member so that the table member rotates at the top of the table support.

The table member of the present invention is characterized in that the rotating body is installed in the center, and the rotating tube and the connecting tube 660 are coupled to each other and installed on the rotating body so that the rotating tube rotates interlockingly when the table member rotates.

The drum rotary table of the present invention is characterized in that when holding the nozzle of the fire hose wound on the hose reel and moving in the direction where the fire occurs, the rotation is made so that the hose reel is positioned in the direction in which the fire hose is released.

The plurality of multi-stage cylinders of the present invention are installed at a distance from each other on the inside of the fire hydrant, and the table base of the drum rotation table is installed to interlock with the multi-stage cylinder rod, and the cylinder water pressure pipe connected through the main fire extinguishing water supply pipe and the branch pipe It is connected so that it can rise by fire-fighting water, and a second automatic drain valve is installed in the cylinder water pressure pipe so that it descends when the pressure is lowered by the discharged fire-fighting water.

According to the underground fire hydrant of the present invention, if the manhole cover is covered while the hose reel is embedded inside the fire hydrant buried underground, it is possible to safely protect the fire extinguishing equipment such as the hose reel, and the hose reel is normally on the ground. Since it does not protrude, it can improve space utilization and at the same time has a beautiful appearance.

In addition, in the present invention, when the fire hose is pulled in a state where the hose reel is raised by water pressure, the drum rotary table rotates and is positioned in the same line as the direction in which the fire hose is released and moved, so that the fire hose is easily released without twisting or bending, and the fire suppression is It has an easy effect.

In addition, the present invention allows the hose reel to be positioned in the direction in which the fire hose released from the hose reel moves, so that when the existing fire hose is released, the drum rotary table on which the hose reel is installed is rotated in the left and right directions, so that the direction in which the fire hose is released and the fire are reduced. When the generated direction is perpendicular, the process of unwinding the fire hose is very difficult, so there is an effect of solving the problem of not being able to quickly extinguish the fire.

1 is a view showing a state in which a fire extinguisher for underground burial according to the present invention is installed in the ground.
2 is a view showing a state in which a fire extinguisher for underground burial according to the present invention is raised from the ground to the ground.
Figure 3 is a view showing the configuration of the table support and drum rotation table shown in Figure 2;
Figure 4 is a cross-sectional view showing the configuration of the table stand shown in Figure 3;

Hereinafter, the configuration of the underground hose reel rotating device of the fire extinguisher for underground burial according to the present invention will be described.

An underground hose reel rotation device for a fire extinguisher for underground burial according to the present invention includes a fire extinguisher 100 having a pair of casement manhole covers 220 installed on the top and a fire fighting device installed on the inside; A main fire extinguishing water supply pipe 310 installed on one side of the inside of the fire extinguishing box 100 to supply fire extinguishing water; The main fire extinguishing water supply pipe 310 is branched between the main valve 320 having an opening/closing handle 321 on the fire water inlet side and the angle valve 330, and an angle valve 330 connected to the fire hose 620; A multi-stage cylinder rod 511 is connected to both sides of the table support 410 on which the drum rotation table 400 is installed, and a plurality of multi-stage cylinders (511) are supported on the bottom of the fire hydrant box 100 to raise and lower the hose reel 610 ( 510) and; A drum rotation table 400 provided with a plurality of holders 430 on which the hose reel 610 is rotatably installed and installed 360° rotatably on a table support 410 installed on a plurality of multi-stage cylinders 510; It is connected to one side of the inner surface of the manhole cover 220 so that the pair of manhole covers 220 can be opened, and the lower end is installed on the cover frame 210 of the manhole cover 220, respectively, to open the pair of manhole covers 220. It is characterized in that it includes; gas shock bar 230 for fixing.

A fire hydrant for underground burial according to the present invention will be described in detail through the accompanying drawings.

1 is a view showing a state in which a fire extinguisher for underground burial according to the present invention is installed in the ground, and FIG. 2 is a view showing a state in which a fire extinguisher for underground burial according to the present invention is raised from the ground to the ground, FIG. is a view showing the configuration of the table support and the drum rotation table shown in FIG. 2, and FIG. 4 is a cross-sectional view showing the configuration of the table support shown in FIG.

1 to 4, the fire hydrant box opening system for underground burial according to the present invention includes a fire hydrant box 100, a manhole part 200, a valve part 300, a drum rotary table 400, a cylinder part ( 500), and a hose reel unit 600.

The fire extinguisher 100 is formed in a box shape with an open top and buried in the ground. In addition, a drain 101 through which residual firefighting water is discharged from the fire hose 620 is formed at the lower part of the fire hydrant box 100.

In addition, the fire extinguisher 100 is configured with a manhole portion 200 to be opened and closed in a casement form at the top.

In the manhole part 200, a cover frame 210 is installed along the upper edge of the fire extinguisher 100, and a manhole cover 220 with a plurality of handles 221 installed on the cover frame 210 is centered at the center. It is installed to be able to open and close in the form of opening and closing by hinges in both directions.

In the center of the pair of manhole covers 220, a 'U'-shaped coupling portion 222 and a coupling convex portion 223 are formed, and the coupling portion 222 and the coupling convex portion 223 are closed. It blocks rainwater, foreign matter, etc. from entering between the manhole cover 220 in the state.

The manhole cover 220 has a plurality of gas shockers 230 installed on the left and right inner surfaces while the lower end is supported by the cover frame 210, and the gas shock absorber 230 has a manhole cover 220 Keep it open.

The manhole part 200 configured as above is opened by rotating around the hinge when the firefighter or the user grabs the handle 221 and opens it, and the manhole cover 220 is opened by the plurality of gas shockers 230. fix the state

With the manhole cover 220 open by the firefighter or user, the main valve 320 is opened using the opening/closing handle 321 of the valve unit 300 so that the plurality of multi-stage cylinders 510 are discharged by firefighting water. It rises so that the hose reel part 600 rises.

In the valve unit 300, a main valve 320 is installed on the main fire extinguishing water supply pipe 310 inside the fire hydrant box 100 to supply and block fire fighting water, and fire fighting water is supplied from the main valve 320. An angle valve 330 is installed at the end of the main fire extinguishing water supply pipe 310 on the discharge side, and after extinguishing the fire on the main fire extinguishing water supply pipe 310, the hose reel part 600 is installed inside the fire hydrant box 100. A manual drain valve 340 is installed so that it can be drawn into the branch pipe 350 and the multi-stage cylinder 510 so that fire-fighting water is supplied to the multi-stage cylinder 510 through the main fire-fighting water supply pipe 310. ) and the cylinder water pressure pipe 360 is installed, and the multi-stage cylinder rod 511 is raised and lowered by the firefighting water supplied from the cylinder water pressure pipe 360 so that the hose reel unit 600 can be raised and lowered. The multi-stage cylinder 510 is composed of a plurality so as to be connected to the cylinder water pressure pipe 360 and is installed inside the fire hydrant 100, and the multi-stage cylinder 510 drains the firefighting water supplied to the multi-stage cylinder 510. It is configured to include a second automatic drain valve 370 installed on the cylinder water pressure pipe 360 so that it can be located inside the fire extinguisher 100.

In the valve unit 300 configured as described above, a firefighter or a user manipulates the opening/closing handle 321 in a state where the manhole cover 220 is open to open the main valve 320 through the main fire extinguishing water supply pipe 310. When the firefighting water is supplied, the firefighting water supplied to the main firefighting water supply pipe 310 is supplied to the multi-stage cylinder 510 through the branch pipe 350 and the cylinder water pressure pipe 360 to raise the multi-stage cylinder rod 511. let it

When the multi-stage cylinder rod 511 rises, the table stand 410 rises together to raise the hose reel 610 installed on the drum rotary table 400 to the ground.

When the hose reel 610 is raised by the firefighting water supplied to the multi-stage cylinder 510 and the firefighter or the user holds the nozzle of the fire hose 620 and heads in the direction in which the fire hose is released, the hose reel 610 ), while the fire hose 620 is released, the drum rotation table 400 rotates so that the hose reel 610 is positioned in the direction in which the fire hose is released.

The drum rotary table 400 is coupled to the multi-stage cylinder rod 511 of the plurality of multi-stage cylinders 510 and moves up and down in conjunction with the multi-stage cylinder 510) and table support 410) A table member 420 rotatably installed on the upper part of the table member 420 and a plurality of wheel members 440 installed on the lower part of the table member 420 so that the table member 420 rotates on the upper part of the table support 410 It is characterized in that it includes.

The drum rotary table 400 is installed between the fire hose 620 of the hose reel 610 and the connection hose 630 installed in the angle valve 330 to facilitate rotation when the drum rotary table 400 rotates. The rotating body 422 is installed in the through hole 421 formed in the center so that the rotating tube 640 and the connecting tube 660 are coupled to the rotating body 422 . The rotating tube 640 is formed in a 'L' shape and is installed to pass through the inside of the rotating body 422, and the connecting tube 660 is coupled to the lower inner side of the rotating tube 640 to seal and extinguish the fire. Make sure water is supplied.

In addition, the rotary body 422 is installed in the center of the table member 420, and when the table member 420 rotates in a state in which the rotary pipe 640 and the connecting pipe 660 are coupled, the rotary pipe 640 interlocks and rotates. It is characterized by being made to be.

In addition, the supply pipe 650 is coupled to the rotary pipe 640 in an 'L' shape and is coupled to the rotary elbow 680 installed on the hose reel 610, so that the firefighting water is supplied to the fire hose regardless of the rotation of the hose reel 610. (620) so that it can be supplied.

In addition, a coupling pipe 670 is connected to one side of the connection pipe 660, and the firefighting water from the connection hose 630 connected to the angle valve 330 is passed through the rotary pipe 640 and the supply pipe 650 to the fire hose ( 620) to be supplied.

In addition, a first automatic drain valve 690 is installed in the coupling pipe 670 to facilitate discharge of the fire-fighting water remaining in the connection pipe 660, the supply pipe 650, and the fire hose 620 in a state where the fire is suppressed. do. The first automatic drain valve 690 keeps the first automatic drain valve 690 closed when the water pressure of the firefighting water supplied to the fire hose 620 is generated, and the water pressure of the firefighting water does not act. At this time, the first automatic drain valve 690 is opened to discharge the firefighting water remaining in the fire hose, supply pipe, connection pipe, and coupling pipe.

In the drum rotary table 400 configured as above, when a firefighter or a user grabs a nozzle and moves to a place where a fire occurs in the event of a fire, the fire hose 620 is released from the hose reel 610 and the drum rotary table 400 ) is rotated.

At this time, the drum rotary table 400 is rotated left and right at the top of the table support 410 by the wheel member 440 installed below the table member 420, and is positioned in the direction in which the fire hose 620 moves, so that the fire hose 620 is easily released from the hose reel 610.

When the table member 420 is positioned while rotating left and right in the direction in which the fire hose is released, the rotary pipe 640 rotates in conjunction with the hose reel 610 in the direction in which the hose reel 610 rotates, so that the connecting hose 630 and the supply pipe 650 Since this twisting is prevented, the supply of fire extinguishing water is made easy.

In the cylinder part 500, a plurality of multi-stage cylinders 510 are installed at a distance from each other inside the fire extinguisher 100, and the drum rises and falls on the multi-stage cylinder rod 511 of the plurality of multi-stage cylinders 510. The table support 410 of the rotary table 400 is installed, and the multi-stage cylinder 310 is connected to the main fire extinguishing water supply pipe 310 and the cylinder water pressure pipe 360 connected through the branch pipe 350 to supply fire fighting water. It is made to be able to ascend and descend by, and a second automatic drain valve 370 is installed in the cylinder water pressure pipe 360, characterized in that it is opened and closed by the pressure of the incoming firefighting water.

The cylinder water pressure pipe 360 connected to the multi-stage cylinder 510 is preferably made of any one of a material such as a metal material or a fire hose, and the cylinder water pressure pipe 360 is a site where the fire extinguisher 100 is installed. Depending on the situation, the material may be different.

A second automatic drain valve 370 is installed in the cylinder water pressure pipe 360, and the main fire extinguishing water supply pipe 310, the fire hose 620, the connection hose 630, the cylinder water pressure pipe 360, and the multi-stage cylinder 510 ) so that the remaining firefighting water can be automatically discharged.

In addition, the second automatic drain valve 370 is automatically opened when the pressure of the cylinder water pressure pipe 360 drops, and the firefighting water is discharged and the multi-stage cylinder rod 511 is lowered by the weight of the hose reel unit 600 to the multi-stage cylinder ( 510) is made to descend into the interior.

In addition, when the firefighting water is discharged through the second automatic drain valve 370, the manual drain valve 340 is opened by the firefighter or the user so that the firefighting water can be discharged more easily.

By opening the second automatic drain valve 370 and the manual drain valve 340, the multi-stage cylinder 510 can be easily introduced into the fire hydrant box 100 and prevent freezing in seasons such as winter. can

In addition, when a fire occurs, the hose reel 610 is protruded to the ground by the multi-stage cylinder 510, and after the fire is suppressed, it is located in the ground again, so that the fire hydrant can be used in markets, downtown streets, or alleys where fire trucks are difficult to adjoin. It is installed in an area where it is difficult to install outside and has an effect of easy use.

In the hose reel part 600, a hose reel 610 is rotatably installed on a fixing table 430 installed on top of a drum rotation table 400 configured to rotate left and right 360 °, and the hose reel 610 has The fire hose 620 installed on one side of the nozzle 621 is wound, and the fire hose 620 is coupled to the rotating elbow 680 so that the hose reel 610 rotates easily while supplying fire water. , The rotation elbow 680 is installed in the center of the hose reel 610 to be connected to the supply pipe 650, characterized in that installed so that interlocking rotation is achieved when the hose reel 610 rotates.

When holding the nozzle 621 of the fire hose 620 wound on the hose reel 610 and moving to the place where the fire occurred, the fire hose 620 is released from the hose reel 610 and at the same time the drum rotary table 400 While rotating, the hose reel 610 is positioned in the direction in which the fire hose 620 is released.

As described above, when the fire hose 620 is released from the hose reel 610, the rotation elbow 680 interlocks and rotates, so that even if the hose reel 610 rotates, the fire hose coupled to one side of the rotation elbow 680 (620) is not twisted and is easily unwound, making it easy to extinguish the fire.

The process of suppressing a fire using the underground fire extinguisher according to the present invention configured as described above will be described.

First, when a fire occurs, hold the handles 221 formed on the pair of manhole covers 220 and open them on both sides around the center, and when the manhole cover 220 is opened while rotating around the hinge, a plurality of gas shockers ( 230), the open state is maintained.

At this time, the firefighter or the user manipulates the opening/closing handle 321 to open the main valve 320 to supply firefighting water to the main fire extinguishing water supply pipe 310.

The firefighting water supplied through the main fire extinguishing water supply pipe 310 is supplied to the cylinder water pressure pipe 360 through the branch pipe 350, and the multistage cylinder rod 511 of the multistage cylinder 510 is raised by the firefighting water. The table support 410 is raised so that the hose reel 610 protrudes to the ground.

When the hose reel 610 is raised by the multi-stage cylinder 510, hold the nozzle 621 of the fire hose 620 wound on the hose reel 610 and move to the location where the fire occurs, the hose reel 610 As this rotates, the fire hose 620 is released.

With the orifice 621 facing the direction where the fire occurred, operate the handle of the angle valve 330 installed on the main fire extinguishing water supply pipe 310 to open it to release the fire fighting water introduced through the main fire extinguishing water supply pipe 310 Through the connection hose 630, coupling pipe 670, connection pipe 660, supply pipe 650, and rotation elbow 680, it is supplied to the fire hose 620 so that firefighting water is ejected through the nozzle 621 to prevent fire to suppress

In addition, when the fire hose 620 is released from the hose reel 610, the drum rotary table 400 installed on the table support 410 rotates, so that the hose reel 610 rotates in the left or right direction, and the fire hose 620 ) is directed in the direction in which the fire hose 620 is moved so that the fire hose 620 is easily released so that the fire can be easily extinguished.

As described above, the hose reel 610 is positioned in the direction in which the fire hose 620 released from the hose reel 610 moves, so that the hose reel itself does not rotate in the left and right directions when the existing fire hose is released. Therefore, when the direction in which the fire hose is released and the direction in which the fire occurs are perpendicular to each other, the process of unwinding the fire hose is very difficult, so it is possible to solve the problem of not being able to quickly extinguish the fire.

After the fire is extinguished, the handle 321 of the main valve 320 is operated to block the fire extinguishing water supplied to the main fire extinguishing water supply pipe 310, and the manual drain valve 340 is opened to open the main fire extinguishing water supply pipe. (310) Let the pressure inside drop.

When the internal pressure of the main fire extinguishing water supply pipe 310 drops, the first automatic drain valve 690 and the second automatic drain valve 370 are opened so that fire fighting water is discharged.

When the first automatic drain valve 690 is opened, the fire hose 620, the coupling pipe 670, the connection pipe 660, the supply pipe 650, the rotating elbow 680, and the fire fighting water remaining inside the fire fighting water When the water is discharged and the second automatic drain valve 370 is opened, the fire fighting water remaining in the plurality of multi-stage cylinders 510 and the fire fighting water remaining in the main fire extinguishing water supply pipe 310 are all discharged so that the fire is prevented. In case of re-occurrence, it is possible to respond quickly, as well as to prevent freezing and bursting in advance in seasons such as winter, so that fire can be immediately responded to.

As described above, when the firefighting water introduced into the plurality of multi-stage cylinders 510 is discharged, the multi-stage cylinder rod descends and the hose reel is positioned in the ground.

When the multi-stage cylinder rod 511 descends, all of the fire-fighting water is discharged so that no water remains in the fire hose 620, and the multi-stage cylinder rod 511 descends while the fire hose 620 is wound around the hose reel 610. It is preferable to make this so that it is located inside the fire hydrant battleship 100.

As described above, when the manhole cover 220 is covered with the hose reel unit 600 embedded inside the fire hydrant box 100 buried underground, it is possible to safely protect fire extinguishing equipment such as the hose reel unit 600. Also, since the hose reel unit 600 does not normally protrude to the ground, space utilization can be improved.

And when the fire hose 620 is pulled in a state where the hose reel is raised by water pressure, the drum rotary table 400 rotates and the fire hose 620 is positioned in the same line as the direction in which the fire hose 620 is released and moved, so that the fire hose 620 can be easily It is easy to release and extinguish the fire.

In addition, the hose reel 610 is positioned in the direction in which the fire hose 620 released from the hose reel 610 moves, so that when the existing fire hose 620 is released, the hose reel 610 does not rotate in the left and right directions. Therefore, when the direction in which the fire hose 620 is released and the direction in which the fire occurs are at right angles, the process of unwinding the fire hose is very difficult, so there is an advantage in solving the problem of not being able to quickly extinguish the fire.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present invention.

100: fire battleship 101: drain
200: manhole part 210: lid frame
220: manhole cover 221: handle
222: coupling recess 223: coupling convex portion
230: gas shocker 300: valve part
310: main fire extinguishing water supply pipe 320: main valve
321: opening and closing handle 330: angle valve
340: manual drain valve 350: branch pipe
360: cylinder water pressure pipe 370: second automatic drain valve
400: drum rotary table 410: table stand
420: table member 421: through hole
422: rotating body 430: fixing table
440: wheel member 500: cylinder part
510: multi-stage cylinder 511: multi-stage cylinder rod
600: hose reel 610: hose reel
620: fire hose 621: nozzle
630: connecting hose 640: rotary tube
650: supply pipe 660: connector
670: coupling pipe 680: rotation elbow
690: first automatic drain valve

Claims (7)

A fire extinguisher 100 having a pair of manhole covers 220 installed on the top and a fire fighting device installed on the inside;
A main fire extinguishing water supply pipe 310 installed on one side of the inside of the fire extinguishing box 100 to supply fire extinguishing water;
The main fire extinguishing water supply pipe 310 is branched between the main valve 320 having an opening/closing handle 321 on the fire water inlet side and the angle valve 330, and an angle valve 330 connected to the fire hose 620;
A multi-stage cylinder rod 511 is connected to both sides of the table support 410 on which the drum rotation table 400 is installed, and the lower end is supported on the bottom of the fire extinguisher 100 to raise and lower the hose reel 610. (510) and;
A drum rotation table 400 provided with a plurality of holders 430 on which the hose reel 610 is rotatably installed and installed 360° rotatably on a table support 410 installed on a plurality of multi-stage cylinders 510;
It is connected to one side of the inner surface of the manhole cover 220 so that the pair of manhole covers 220 can be opened, and the lower end is installed on the cover frame 210 of the manhole cover 220, respectively, to open the pair of manhole covers 220. Including; gas shock bar 230 for fixing;
The drum rotation table 400,
A table stand 410 that is coupled to the multi-stage cylinder rod 511 of the multi-stage cylinder 510 and moves up and down in conjunction with the multi-stage cylinder 510; a table member 420 rotatably installed on top of the table support 410; It includes; a plurality of wheel members 440 installed under the table member 420 so that the table member 420 rotates at the top of the table support 410,
The table member 420,
The rotating body 422 is installed in the center, and the rotating tube 640 and the connecting tube 660 are combined and installed on the rotating body 422 so that the rotating tube 640 rotates interlockingly when the table member 420 rotates. A fire extinguisher for underground burial, characterized in that made. According to claim 1,
The pair of manhole covers 220,
While the lower end is supported by the lid frame 210, a plurality of gas shock absorbers 230 in which gas shock absorber rods are installed on the left and right inner surfaces are installed,
In the center of the pair of manhole covers 220, a 'U'-shaped coupling portion 222 and a coupling convex portion 223 with packing installed are formed to block the inflow of rainwater and foreign substances. . According to claim 1,
The multi-stage cylinder 510,
Firefighting water is introduced through the cylinder water pressure pipe 360 connected to the main fire extinguishing water supply pipe 310 by the branch pipe 350, and the elevation is made.
An underground fire hydrant, characterized in that the fire extinguishing water is discharged and descended by the opening of the second automatic drain valve 370 installed in the cylinder water pressure pipe 360. delete delete According to claim 1,
The drum rotation table 400,
Holding the nozzle 621 of the fire hose 620 wound on the hose reel 610 and moving in the direction where the fire occurred, underground burial characterized in that the rotation is made so that the hose reel is positioned in the direction in which the fire hose 620 is released. dragon fire hydrant. According to claim 1,
The plurality of multi-stage cylinders 510,
The table support 410 of the drum rotation table 400 is installed to be spaced apart from each other on the inside of the fire extinguisher 100 and interlocked with the multi-stage cylinder rod 511,
The cylinder water pressure pipe 360 connected through the main fire extinguishing water supply pipe 310 and the branch pipe 350 is connected so that it can rise by fire fighting water,
A second automatic drain valve 370 is installed in the cylinder water pressure pipe 360, and when the pressure is lowered by the discharged firefighting water, it is formed so that it descends.

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