KR102471816B1 - Firefighting system for being laid underground - Google Patents

Abstract

The present invention relates to an underground firefighting device, wherein the upper disk on which the fire box cover is installed, the lower disk through which a fastening hole is formed in the center, the upper disk and the lower disk are fixed, and the space in which the fire hose is wound Forming a reel body including a plurality of supports installed in a vertical direction from the ground, a horizontal support plate installed on the lower part of the reel body, protruding from the center of the horizontal support plate, in the fastening hole of the lower disc The user can freely transfer the fire hose regardless of the direction of the fire suppression point, including a support module that forms a structure in which the fire hose is wound and unwound by rotating the reel body in both directions, including a central axis installed inside. have.
In addition, a reel basket having a guide long hole formed on the side is additionally included so that the fire hose is naturally sequentially wound from the bottom to the top by gravity, and the fire hose is wound and unwound. Prevents entanglement of the fire hose have.

Description

Firefighting system for being laid underground}

The present invention relates to a firefighting device buried underground, and when a firefighting box including firefighting equipment such as a hose reel unit is buried in the ground and a fire occurs, the user quickly lifts the firefighting equipment buried in the ground to the ground to extinguish the fire The present invention relates to an underground fire extinguishing device having a structure capable of extinguishing the fire, rapidly withdrawing a fire hose to the point of fire, and preventing entanglement when winding the fire hose.

In general, a fire hydrant box means a device for quickly extinguishing a fire when a fire occurs by installing it indoors or outdoors of a firefighting object or storing a waterproofing device used for fire extinguishing, and can be divided into landfill type and exposure type. can

Recently, underground fire hydrants are being installed in locations where it is difficult to install ground-type fire hydrants, on narrow roads where it is difficult for fire trucks to pass, under sidewalks, and roads. It is installed for the purpose of quickly extinguishing fires, and has a structure buried in the ground so that it is not exposed to the ground, so there are less space restrictions and less risk of damage by external factors. It is becoming.

For example, Korean Patent Registration No. 10-2015231, document 1, relates to a fire extinguisher system for underground burial, and in document 1, a box that can be buried in the ground and has one side open; A door unit installed on one side of the enclosure to open and close one side of the enclosure; A fire extinguishing water supply unit installed in the enclosure to receive fire extinguishing water from outside the enclosure; A water supply line connected to the fire extinguishing water supply unit to form a flow passage of fire extinguishing water; A hose having one end connected to the water supply line and the other end spraying fire extinguishing water; A first valve controlling the flow of fire extinguishing water; A reel unit installed inside the enclosure and having a hose wound on an outer circumferential surface thereof; Disclosed is a fire extinguisher system for burial in the ground including a warming unit for preventing the inflow of cold air.

As another example, Korean Utility Model Publication No. 20-2020-0001368, which is Document 2, relates to an underground fire-fighting device. fire box with valve; A cover that is installed open and close with a hinge on the top of the fire box and is exposed to the ground; A fire hose having an elevating bar disposed inside the firebox to be elevating and protruding on both sides of the center, a coupling connected to a waterproof valve and a connecting hose to rotatably support the disk, and a nozzle 311 wound between the disks A hose reel made of; A cylinder having a rod that is vertically fixed on both sides of the inner side of the fire box and connected to the lifting bars on both sides of the hose reel; A connection pipe having a branch pipe connected to a waterproof valve and a cylinder and having a branch pipe formed with branch pipes connected to both cylinders, respectively; A manual valve installed in the connecting pipe and opened and closed manually; An auto trap that is installed on the connecting pipe and opens and closes automatically; Disclosed is an underground buried type firefighting device including a check valve for preventing backflow installed in a connecting pipe.

However, the firefighting device having the structure as disclosed in Documents 1 and 2 has a structure in which the central axis of the hose reel is fixed in a direction parallel to the ground, so that when the location of the fire is different from the direction in which the hose is unwound, the hose There is a problem that it is difficult to unwind easily, and that the hose can be easily twisted during the process of unwinding or winding, and the hose can get tangled.

Korean Patent Registration No. 10-2015231 (Announcement date: 2019.08.27) Korean Utility Model Publication No. 20-2020-0001368 (Public date: 2020.06.24) Korean Patent Registration No. 10-2189899 (Announcement date: 2020.12.11)

The present invention has been made to solve the problems of the prior art as described above, and the user can freely transfer the fire hose regardless of the direction of the fire suppression point, and the fire hose is wound and unwound in the process. It is intended to provide technical information about an underground firefighting device that can smoothly supply fire extinguishing water for fire suppression without twisting or bending.

In addition, the present invention is to provide technical details related to an underground fire-fighting device that allows a user to easily rotate a heavy reel body even when a user uses little force to withdraw a fire hose.

In addition, the present invention can form a seismic structure that is safe for earthquakes, etc., and can safely protect a hose reel unit from external shock, vibration, etc., thereby reducing maintenance costs. that you want to provide.

In addition, the present invention is to provide technical details related to an underground fire-fighting device capable of preventing the fire hose from being entangled by allowing the fire hose to be sequentially wound from the bottom to the top naturally by gravity.

The technical problems to be solved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned are clearly understood by those skilled in the art from the description below. It could be.

In order to achieve the above technical problem, the present invention provides a fire extinguisher body buried in the ground and having an open upper surface and a fire hydrant cover installed on the upper surface of the fire extinguisher body to open and close the upper surface of the fire extinguisher body. A fire hydrant unit comprising a fire extinguisher, a water supply unit installed on the fire extinguisher main body and supplying fire extinguishing water from the outside of the fire extinguisher main body, one end connected to the water supply unit, and a nozzle provided at the other end to supply fire extinguishing water A hose reel unit including a hose, a reel body forming a space in which the fire hose is wound, and a support module installed below the reel body, and a hose reel unit installed below the hose reel unit to expose the hose reel unit to the ground Or, a lifting unit that lifts and lowers the hose reel unit so as to be accommodated inside the fire extinguisher body, and the reel body includes an upper disk on which the fire extinguisher cover is installed, and a lower disk through which a fastening hole is formed in the center. , A plurality of supports fixed to the upper disc and the lower disc, forming a space in which the fire hose is wound, and installed in a direction perpendicular to the ground, the supporting module is installed on the lower part of the reel body The reel body rotates in both directions, including a horizontal support plate, a central axis protruding from the center of the horizontal support plate and installed in the fastening hole of the lower disc to form a structure in which the fire hose is wound and unwound. It provides an underground buried firefighting device that does.

According to a preferred embodiment of the present invention, the main body of the fire fighting box may further include a drain hole formed through one side of the bottom surface.

According to a preferred embodiment of the present invention, the support module has a tubular structure in which the central axis has an open bottom, one end is fixed to the side of the central axis, and one end of the fire hose is installed at the other end An upper part is airtightly inserted and installed through the bent tube body and the lower part of the central axis, the lower part protrudes from the lower surface of the horizontal support plate and is connected to the connection pipe of the water supply unit, and an inflow passage is formed therethrough, and the central axis One or more supply holes are formed through the side of the upper part installed inside, one end is connected to the inflow passage, the connection pipe is connected to the lower end, and an opening connected to the inflow passage is formed at the lower end, When the fire hose is wound or unwound, the fire hose is supplied to the fire hose through a central axis of the fire extinguishing water flowing through the opening, and includes a rotating connection shaft rotating in both directions inside the central axis. An unbreakable structure can be formed.

According to a preferred embodiment of the present invention, the hose reel unit further includes a rotation support member installed between the horizontal support plate and the reel body, and the rotation support member contacts the lower surface of the lower disk A rotating ball installed so as to be installed, an inner ring formed on the inside so as to wrap along the outer circumferential surface of the central axis, and an outer ring coupled to the outside of the inner ring and forming a structure together with the inner ring to prevent separation of the rotating ball, The rotating ball is characterized in that a portion of the rotating ball protrudes outside the inner and outer rings and contacts the lower surface of the lower disk, and even when the user uses little force to withdraw the fire hose, the heavy hose reel unit can be easily rotated to It is possible to form a structure in which the fire hose wound around the reel body can be easily unwound.

According to a preferred embodiment of the present invention, the hose reel unit has a structure in which an accommodation space is formed therein and an upper surface is open to accommodate the reel body, and an accommodation hole through which the central axis is accommodated passes through the lower surface of the hose reel unit. and a reel basket formed on one side of the side in a longitudinal direction from top to bottom and having a guide long hole providing a passage through which the fire hose is wound and unwound, the reel basket in the reel body When the unwound fire hose is wound, a structure may be formed to guide the fire hose to be drawn in along the guide long hole so that the fire hose is sequentially wound from the bottom to the top of the support by gravity.

In the underground firefighting device according to the present invention, the reel body supporting the fire hose is installed in a vertical direction from the ground, so that the user can freely transfer the fire hose regardless of the direction of the fire suppression point.

In addition, the fire hose is not twisted or broken during the process of winding and unwinding the fire hose, so that water for extinguishing the fire can be smoothly supplied.

In addition, when the rotation support member is provided so that the user rotates the reel body in both directions to wind and unwind the fire hose, since the rotating ball rotates in contact with the lower surface of the lower disk, to withdraw the fire hose Even when using little force, the heavy reel body can be easily rotated.

In addition, an elastic member may be provided to provide elastic force to the inner surface of the reel body and the horizontal support plate, and elastically support the reel body coupled directly or indirectly to the central axis to form an earthquake-resistant structure that is safe from earthquakes. , it can safely protect the hose reel unit from external shocks and vibrations, reducing maintenance costs.

Furthermore, when the fire hose is wound on the reel body, including a reel basket in which a guide long hole is formed on the side and the reel body is installed therein, the fire hose is naturally lowered by gravity. Guides to be sequentially wound from the top to the top. By doing so, the fire hose is naturally wound from the lower part to the upper part of the reel body, and thus, it is possible to prevent the fire hose from being entangled in the process of winding and unwinding the fire hose.

1 is a conceptual diagram showing an example of an underground fire-fighting device in a state where the lowered hose reel unit is housed inside the main body of the fire hydrant.
2 is a conceptual diagram showing an example of an underground firefighting device in a state in which the hose reel unit is elevated and exposed to the outside from the inside of the fire extinguisher main body.
3 is a side view showing an example of a hose reel unit in a state in which a fire hose is unwound in an underground firefighting device according to the present invention.
4 is an exploded perspective view showing an example of a supporting module provided in an underground firefighting device according to the present invention.
5 is a side view showing an example of a hose reel unit in a state in which a fire hose is wound in an underground firefighting device according to the present invention.
6 is a conceptual diagram showing a rotational support member provided in an underground firefighting device according to the present invention.
7 is a conceptual diagram showing an example of a state in which a reel body is installed in a reel basket according to a preferred embodiment of the present invention.
8 is a conceptual diagram showing an example of a state in which a hose reel unit in which a fire hose is wound is installed in a reel basket in an underground firefighting device according to the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

The meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element. It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Hereinafter, the present invention will be described in detail.

1 is a conceptual diagram showing an example of an underground firefighting device in which the lowered hose reel unit is accommodated inside the fire extinguisher main body, and FIG. 2 is a hose reel unit lifted and exposed to the outside It is a conceptual diagram showing an example of a state-of-the-art underground firefighting system.

1 and 2, the underground fire fighting device 10 according to the present invention includes a fire extinguisher unit 100, a water supply unit 200, a hose reel unit 300 and a lifting unit 400 has a structure that

The fire extinguisher unit 100 is a fire hydrant battleship main body 110 having a structure buried in the ground and one side open and a fire hydrant battleship installed on one side of the fire hydrant battleship main body 110 to open and close one side of the hydrant battleship main body 110. Cover 130 is included.

The fire extinguisher main body 110 is buried in the ground and has a box-shaped structure, and forms an accommodation space therein to form a structure for accommodating the water supply unit 200, the hose reel unit 300, and the elevating unit 400 can The fire extinguisher main body 110 forms a structure with an open upper surface, so that the hose reel unit 300 accommodated in the inner accommodation space is lifted or lowered to the ground by the lifting unit 400 to the inside of the fire extinguisher main body 110 It is possible to form a structure that is accommodated and accommodated.

In addition, the fire extinguisher main body 110 is buried in the ground, so the installation space is less restricted, and damage to the water supply unit 200, hose reel unit 300, and elevating unit 400 caused by external factors can be prevented, , For this purpose, one manufactured by pressing a metal plate may be used, or one manufactured by combining a plate-shaped precast concrete block molded into a preset shape may be used, and an alarm bell, control unit, warning light, guide plate, etc. may be accommodated therein You may.

In the drawing, the fire extinguisher main body 110 may have a rectangular parallelepiped structure, but is not limited thereto, and may have a polygonal structure having various cross sections in addition to a cylindrical shape having a circular cross section and a quadrangle.

In addition, the fire extinguisher main body 110 may further include a drain hole 111 formed through one side of the bottom surface, and accordingly, the fire extinguishing water, rainwater, etc. are not collected inside the fire extinguisher main body 110 and discharged to the outside. structure can be formed.

The fire hydrant cover 130 is installed to be able to open and close on the top of the fire hydrant box body 110, and covers the open upper surface of the fire hydrant box body 110 buried in the ground to provide an internal accommodation space. It is possible to form a structure that shields or opens one side of the fire extinguisher main body 110.

To this end, the fire extinguisher cover 130 is fixedly installed on the upper part of the hose reel unit 300 to be described later and exposed to the ground by the lifting and lowering operation of the lifting unit 400 to open the upper part of the fire hydrant box body 110 or By the lowering operation, the upper part of the fire extinguisher main body 110 is covered to form a structure that maintains airtightness so that water and foreign substances do not flow into the fire extinguisher main body 110.

In addition, the fire box cover 130 may be configured to further include a heat insulating member installed on one inner surface. As the heat insulating member, a material having excellent heat insulating performance and sufficient mechanical strength may be introduced, and a plate-shaped member made of polystyrene or foamed plastic material may be introduced.

In addition, the fire hydrant box cover 130 may be configured to additionally include a packing member formed on one side of the inner surface, and is manufactured using a rubber material having elasticity to tightly pack the side or bottom surface of the fire box cover 130. It is possible to form a structure that prevents moisture from penetrating into the fire hydrant battleship body 110.

The fire extinguisher cover 130 may be made of a material that is not easily corroded and can sufficiently support the load applied from the top, such as stainless steel.

In addition, the fire hydrant box cover 130 has a structure in which a display unit is formed using materials such as luminous material, luminous material, phosphorescent material, etc. so that phrases, designs, etc. indicating the fire box can be displayed on the outer surface, and can be identified even at night. can have

In addition, the fire box cover 130 has a buried groove 131 forming an internal accommodating space on the inner surface of the central portion, and the internal accommodating space of the embedded groove 131 is connected to the reel body 330 to be described later to form a reel A handle (not shown) is provided to rotate the main body 330 in both directions, and one side of the handle is connected to the central axis of the reel body 330 through a through hole formed in the lower part of the fire box cover to The body 330 can be rotated in both directions to form a structure for winding and unwinding the fire hose, and after the fire hose is completely wound around the reel body 330, the handle is detached, and the detached handle is used as a fire extinguisher box cover (130) may form a structure to be stored in the inner receiving space, but is not limited thereto.

On the other hand, the water supply unit 200 is installed inside the fire extinguisher main body 110 to supply fire extinguishing water from the outside of the fire extinguisher main body 110, and the supplied fire extinguishing water goes to the point where the fire occurs through the fire hose 310. For this purpose, the water supply unit 200 may have a structure including a water supply pipe 210, a control valve 230, and a connection pipe 250.

Specifically, one end of the water supply pipe 210 is exposed to the outside of the fire hydrant battleship main body 110 and is connected to a fire extinguishing water storage tank or water supply pipe to supply fire extinguishing water from the outside of the fire extinguishing battleship main body 110, and the other end is extinguishing It is connected to the connection pipe 250 inside the battleship body 110 to supply fire extinguishing water to the fire hose 310.

The control valve 230 is installed between the water supply pipe 210 and the connection pipe 250 and is installed inside the fire hydrant box body 110 to control the flow of fire extinguishing water. The control valve 230 is provided with a lever, and can be configured to supply fire extinguishing water to the fire hose 310 or stop supplying fire extinguishing water by a user's manipulation of the lever. The connection pipe 250 may have one end connected to the water supply pipe 210 and the other end connected to the hose reel unit 300 to supply fire extinguishing water to the fire hose 310.

In addition, in order to facilitate the supply of fire extinguishing water supplied through the fire hose 310, the connection pipe 250 has a structure in which a supply motor (not shown) is additionally provided on one side to smoothly control the supply of fire extinguishing water. It can form, but is not limited thereto.

Meanwhile, the hose reel unit 300 has a structure including a fire hose 310, a reel body 330, and a support module 350.

The fire hose 310 has one end connected to the water supply unit 200 and the other end provided with a nozzle 311 to supply the fire extinguishing water to extinguish the fire.

Specifically, the fire hose 310 forms a passage for supplying fire extinguishing water supplied through the connection pipe 250 to the nozzle 311, and supplies the fire extinguishing water to the fire suppression point through the nozzle 311 It acts as a sprayer. The fire hose 310 is housed inside the fire hydrant box body 110 while being wound around the reel body 330, and the hose reel unit 300 is exposed to the ground by the operation of the elevating unit 400 to be described later It is unwound in the state and can transport fire extinguishing water to a fire suppression point, and allows fire extinguishing water to be sprayed through the nozzle 311. In addition, after the firefighting activity is finished, the fire hose 310 may be wound around the side of the reel body 330 . The fire hose 310 may use a soft pipe having a certain length and standard,

The nozzle 311 provided in the fire hose 310 may have a structure including a manual valve (not shown) that is manually opened and closed at one end so as to adjust the injection strength of fire extinguishing water.

On the other hand, Figure 3 is a side view showing an example of a hose reel unit in a state in which the fire hose is unwound in the underground firefighting device according to the present invention, Figure 4 is provided in the underground firefighting device according to the present invention It is an exploded perspective view showing an example of the support module.

Referring to FIG. 3, the reel body 330 has a structure in which the fire hose 310 is wound and stored on the outer circumferential surface of the support and rotates in both directions, so that the fire hose 310 is coiled and unwound (hose uncoiling) structure can be formed.

To this end, the reel body 330 has a disk shape and has an upper disk 331 and a lower disk 333 forming a structure for preventing the winding fire hose 310 from escaping, and the upper disk 331 and the lower disk It includes a plurality of supports 335 installed between the discs 333 to fix the upper disc 331 and the lower disc 333 and to form a space in which the fire hose 310 is wound, and the fire hose ( 310) is fixed in a vertical structure on the ground, so that the user can freely transfer the fire hose 310 regardless of the direction of the fire suppression point.

Specifically, the upper disc 331 may include a connection member (not shown) so that the fire box cover 130 can be installed thereon, and is connected to the handle (not shown) on the upper surface, and the upper disc 331 A support 3311 fixed to ) may be formed to form a structure capable of rotating the reel body 330 in both directions. A fastening hole 3331 is formed through the lower disc 333 to form a structure in which a central axis 353 to be described later is installed inside the fastening hole 3331.

Referring to FIG. 4, the support module 350 has a reel body 330 installed on the upper part and a lifting unit 400 installed on the lower part to support the hose reel unit 300 and the fire hydrant box cover 130 when lifting and lowering. structure can be formed.

To this end, the support module 350 includes a horizontal support plate 351 installed below the lower disk 333 and a central shaft 353 protruding from the center of the horizontal support plate 351, and the lower disk 333 The central shaft 353 is installed inside the fastening hole formed in the center to form a structure capable of rotating in both directions, thereby forming a structure in which the fire hose 310 is wound and unwound from the reel body 330.

In addition, the supporting module 350 may form a structure in which the fire hose 310 rotates in both directions during winding and unwinding, so that the fire hose is not twisted or bent.

To this end, according to a preferred embodiment of the present invention, the central axis 353 of the support module 350 has a structure in which a receiving space is formed therein, the lower side is open, and the upper side is closed. It is a structure, and has a structure in which a first connector (C1) connecting the curved tube body 355 and the other end coupling part of the fire hose 310 and the bent tube body 355 is formed on the side. At this time, the lower disc 333 may be installed on the lower side of the bent tube body 355 .

In addition, the supporting module 350 includes a rotational connection shaft 357 that is partially airtightly coupled and installed from the bottom to the inside of the central shaft 353, and the rotation connection shaft 357 has an upper portion of the central shaft 353 It is installed in the lower side opening of the inside, has a structure in which an inflow passage 3571 is formed to supply fire extinguishing water, and one or more supply holes 3573 penetrate the side surface of the upper part installed inside the central axis 353. have a formed structure. In addition, the lower part protrudes from the lower surface of the horizontal support plate 351 and has a structure in which an opening 3575 connected to the inflow passage 3571 is formed at one end, and a structure connected to the connection pipe 250 using the second connector C2 Formed, the fire extinguishing water flowing in through the opening 3575 can be supplied through the central axis 353, and the fire extinguishing water supplied to the central axis 353 is supplied to the fire hose 310 through the curved tube body 355 Thus, a structure in which fire extinguishing water flows out through the orifice 311 may be formed.

In addition, the rotation connecting shaft 357 is provided with an elastic packing member P to form a structure in which fire extinguishing water does not flow out from the central shaft, and forms a structure that rotates in both directions inside the central shaft 353 In the process of winding and unwinding the fire hose 310, a structure that rotates in both directions is formed to prevent the fire hose from being twisted or broken, so that fire extinguishing water can flow smoothly.

In addition, the hose reel unit 300 may further include a rotation support member 358 installed between the horizontal support plate and the reel body 330 .

5 is a cross-sectional view showing an example of a hose reel unit 300 in a state in which a fire hose is wound in an underground firefighting device 10 according to the present invention, and FIG. 6 is an underground firefighting firefighting device according to the present invention It is a conceptual diagram showing the rotation support member 358 provided in the device 10.

Referring to FIG. 5, the rotation support member 358 is formed to wrap along the outer circumferential surface of the central axis 353 protruding from the center of the horizontal support plate 351, and is in surface contact with the lower surface of the lower disc 333. It is installed so that the fire hose wound around the reel body 330 can be easily unwound by easily rotating the heavy hose reel unit 300 even when the user uses little force to withdraw the fire hose. Formation can do.

To this end, the rotation support member 358, as shown in FIG. 6, is installed to come into contact with the lower surface of the lower disk 333, the rotating ball 3581, the inner side to wrap along the outer circumferential surface of the central axis 353 An inner ring 3583 formed on the inner ring 3583, an outer ring 3585 coupled to the outside of the inner ring 3583 and forming a structure for preventing the rotation ball 3581 from leaving together with the inner ring 3583, the rotation The ball 3581 may use a bearing structure characterized in that a portion protrudes to the outside of the inner ring and the outer ring and contacts the lower surface of the lower disc 333.

Accordingly, when the reel body 330 rotates in both directions to wind and unwind the fire hose 310, the rotation ball 3581 of the rotation support member 358 is in contact with the lower surface of the lower disk 333 Since it rotates in the state, a structure that can easily rotate the heavy reel body 330 can be formed even when a small force is used to withdraw the fire hose 310.

In addition, the hose reel unit 300 may be configured to further include an elastic member 359 installed between the rotation support member 358 and the horizontal support plate 351, the elastic member 359 is a rotation support member ( 358) can provide elastic force so that the lower surface of the horizontal support plate 351 comes into contact with the inner surface of the horizontal support plate 351, and elastically supports the reel body 330 coupled directly or indirectly to the central axis 353 so as to be safe in earthquakes and the like. An earthquake-resistant structure can be formed, and the hose reel unit 300 can be protected from external shock and vibration. The elastic member 359 may form a structure that stably supports the upper support plate and the lower support plate even when an external shock or vibration occurs as an elastic member in the form of a coil spring is installed to provide an elastic force.

In addition, the lower disc 333 may have a structure in which a circular locking jaw 3333 protrudes at a predetermined height along the outer circumferential surface of the fastening hole 3331 formed in the center of the lower surface. Accordingly, when the rotation support member 358 rotates in both directions or moves back and forth and left and right due to an external impact, the rotation ball provided on the rotation support member 358 always contacts the lower surface of the lower disc 333. By forming the structure, it is possible to form an earthquake-resistant structure that is safe from earthquakes and the like, and it is possible to protect the hose reel unit 300 from external shock and vibration.

On the other hand, FIG. 7 is a conceptual diagram showing a state in which the reel body 330 is installed in the reel basket 370 according to a preferred embodiment of the present invention, and FIG. 8 is an underground firefighting device 10 according to the present invention It is a conceptual diagram showing a state in which the hose reel unit 300 in which the fire hose 310 is wound is installed in the reel basket 370.

7 and 8, the hose reel unit 300 may be configured to additionally include a reel basket 370, the reel basket 370 has a receiving space formed therein, and one surface is open structure A cylindrical structure having a receiving hole (not shown) through which the central axis 353 is accommodated is formed on the other surface, and the reel body 330 is accommodated therein, and formed in the longitudinal direction from top to bottom on one side and has a structure in which a guide long hole 371 is formed to provide a passage through which the fire hose 310 is wound and unwound. When the fire hose 310 is wound around the reel body 330, the guide long hole 371 is Guides the hose 310 so that it is naturally wound sequentially from the bottom to the top by gravity, and the reel basket 370 serves as a wall to support the fire hose 310 to be wound at a certain thickness. Accordingly, the fire hose ( 310) is uniformly wound around the reel body 330, and entanglement of the fire hose 310 can be prevented.

As shown in FIG. 8, the reel basket 370 having the above structure has a lower surface installed between the horizontal support plate 351 and the elastic member 359 to form the hose reel unit 300. have.

On the other hand, the underground firefighting device 10 according to the present invention includes a lifting unit 400 for lifting and lowering the hose reel unit 300, the lifting unit 400 is the lower part of the hose reel unit 300 It is installed on the hose reel unit 300 so that the hose reel unit 300 is exposed to the ground, or the hose reel unit 300 is accommodated inside the fire hydrant box body 110.

The lifting unit 400 is equipped with a pneumatic or hydraulic cylinder and is fixed to the inside of the fire extinguisher body 110 to form a structure for lifting and lowering the hose reel unit 300 from the lower part of the hose reel unit 300. Conventional It can be implemented by introducing various types of lifting and lowering devices.

According to a preferred embodiment of the present invention, as shown in FIG. 1, the elevating unit 400 has a lower portion installed on the bottom surface of the fire fighting box body 110, and an upper portion of the horizontal support plate 350 It is installed on the horizontal support plate 350 to support the horizontal support plate 350 may be used to have a structure including one or more lift cylinders for raising and lowering, the lift cylinder 351 may be composed of a pneumatic or hydraulic cylinder can

Alternatively, according to a preferred embodiment of the present invention, the elevating unit 400 has a lower portion installed on the bottom surface of the fire fighting box body 110 and an upper portion installed on the lower portion of the horizontal support plate 350 to form a horizontal support plate ( 350), one or more X-shaped links forming a structure capable of lifting and lowering, and a structure including a lift cylinder for lifting and lowering the X-shaped link can be used, and the lift cylinder is a pneumatic or hydraulic cylinder. can be configured.

The lifting unit 400 may further include a control means 410 to form a structure for controlling the lifting and lowering of the lifting unit 400 .

In addition, the control means may be installed around the fire hydrant box main body 110 to adjust the elevation of the elevation unit, and is not limited to an installation location.

In one example, the control means 410 is formed on one side of the upper part of the fire extinguisher main body 110, a housing having an open top surface, a control lever accommodated inside the housing and controlling the operation of the lifting unit, the It is configured separately from the fire box cover 130 and is provided with an upper cover (not shown) that opens and closes the upper surface of the housing so that the user can control the lifting and lowering operation of the lifting unit by operating the control lever after opening the upper cover. In addition, the top cover (not shown) may be provided with a locking device to control opening and closing.

The lift unit 400 is equipped with a pump (not shown) to supply pneumatic or hydraulic pressure to control the drive of the lift cylinder, and to control the drive of the pump to supply power to control the lift and lowering of the lift unit 400. A member (not shown) may be provided, and a control member (not shown) for controlling the operation of a power supply member (not shown) by a user may be provided. It is installed on one side or outside so that the user can easily control the operation of the lifting unit 400 . In addition, the lifting unit 400 further includes a drop prevention valve (not shown) for preventing the lift cylinder from rapidly descending even when hydraulic or pneumatic pressure supplied to the lift cylinder is stopped while the lift cylinder is being raised. It may be configured, and may be configured to further include one or more accumulators (not shown) for manually raising and lowering the lift cylinder by supplying hydraulic pressure or pneumatic pressure when an abnormality occurs in the power supply member (not shown).

The elevating unit 400 having the above structure is installed under the hose reel unit 300 to elevate and lower the hose reel unit 300 so that the hose reel unit 300 is exposed to the ground, or A structure such that the reel unit 300 is accommodated inside the fire extinguisher main body 110 may be formed.

As described above, in the underground firefighting device 10 according to the present invention, the reel body 330 supporting the fire hose 310 is installed in a vertical direction from the ground, so that the user can use it regardless of the direction of the fire suppression point. can freely transport the fire hose 310.

In addition, when the rotation support member 358 is provided so that the user rotates the reel body 330 in both directions to wind and unwind the fire hose 310, the rotating ball 3581 rotates the lower surface of the lower disc 333. Since it rotates while in contact with, the heavy reel body 330 can be easily rotated even when a small amount of force is used to withdraw the fire hose 310.

In addition, an elastic member 359 is provided to provide elastic force to the inner surfaces of the reel body 330 and the horizontal support plate 351, and the reel body 330 coupled directly or indirectly to the central axis 353 It is elastically supported to form a seismic resistant structure that is safe from earthquakes, and the hose reel unit 300 can be safely protected from external shock and vibration, thereby reducing maintenance costs.

Detailed descriptions of the preferred embodiments of the present invention disclosed as described above are provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the scope of the present invention. For example, those skilled in the art may use each configuration described in the above-described embodiments in a way of combining each other. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that do not have an explicit citation relationship in the claims may be combined to form an embodiment or may be included as new claims by amendment after filing.

10: Underground firefighting device 100: Fire hydrant unit
110: fire fighting box body 130: fire fighting box cover
131: buried home 200: water supply unit
210: water supply piping 230: control valve
250: connection piping 300: hose reel unit
310: fire hose 311: nozzle
330: reel body 331: upper disk
333: lower disk 335: support
350: support module 400: lifting unit

Claims (5)

A fire battleship unit including a fire battleship body buried in the ground and having an open upper surface and a fire battleship cover installed on the upper surface of the fire battleship body to open and close the upper surface of the fire battleship body,
A water supply unit installed on the fire extinguisher body to supply fire extinguishing water from the outside of the fire extinguisher body;
A fire hose having one end connected to the water supply unit and having a nozzle provided at the other end to supply the fire extinguishing water, a reel body forming a space in which the fire hose is wound, and a support module installed below the reel body. hose reel unit and
A lifting unit installed under the hose reel unit to expose the hose reel unit to the ground or to elevate and lower the hose reel unit to be accommodated in the fire extinguisher main body,
The reel body,
The upper disc on which the fire box cover is installed, the lower disc through which the fastening hole is formed in the center, the upper disc and the lower disc are fixed, and a space in which the fire hose is wound is formed. Installed in a vertical direction from the ground Including a plurality of supports,
The support module,
The reel body rotates in both directions, including a horizontal support plate installed at the lower part of the reel body and a central axis protruding from the center of the horizontal support plate and installed inside the fastening hole of the lower disc, so that the fire hose is wound and unwound form a structure that
The hose reel unit,
Further comprising a rotation support member installed between the horizontal support plate and the reel body,
The rotation support member,
A rotating ball installed to be in contact with the lower surface of the lower disc, an inner ring formed on the inside so as to wrap along the outer circumferential surface of the central axis, a structure coupled to the outer side of the inner ring and preventing the rotation ball from escaping together with the inner ring Including the outer ring that forms,
The rotary ball is a buried underground firefighting device, characterized in that a part protrudes to the outside of the inner ring and the outer ring and contacts the lower surface of the lower disc. According to claim 1,
The fire extinguisher main body is an underground buried firefighting device, characterized in that it further comprises a drain formed through one side of the bottom surface. According to claim 1,
The support module,
The central axis has a tubular structure with an open bottom,
A curved tube having one end fixed to the side of the central axis and one end of the fire hose installed at the other end; and
A part of the upper portion is airtightly inserted and installed through the lower portion of the central axis, the lower portion protrudes from the lower surface of the horizontal support plate and is connected to the connection pipe of the water supply unit, and an inflow passage is formed therethrough and installed inside the central axis One or more supply holes are formed through the side of the upper part, one end is connected to the inflow passage, the connection pipe is connected to the lower end, and an opening connected to the inflow passage is formed at one end of the lower end, through the opening Including a rotation connecting shaft that supplies the inflowing fire extinguishing water to the fire hose through the central shaft and rotates in both directions inside the central shaft,
When the fire hose is wound or unwound, a structure in which the fire hose is not twisted or broken is formed. delete According to claim 1,
The hose reel unit,
An accommodation space is formed inside, the upper surface has an open structure to surround and accommodate the reel body, and an accommodation hole through which the central axis is accommodated is formed on the lower surface, and is formed on one side of the side in the longitudinal direction from the top to the bottom , Further comprising a reel basket having a guide long hole providing a passage through which the fire hose is wound and unwound,
The reel basket, when winding the fire hose unwound from the reel body, guides the fire hose to be drawn in along the guide long hole so that the fire hose is sequentially wound from the bottom to the top of the support by gravity Underground fire-fighting device, characterized in that for forming a structure to.

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