KR102396333B1 - Self powered fire hydrant - Google Patents

Abstract

The present invention relates to a fire hydrant which is self-powered when fire extinguishing water is discharged through the outlet, and to a fire hydrant which includes a rod that raises and lowers a fire hydrant valve and an operating nut that is coupled with the rod, and raises and lowers the rod by rotation to operate the fire hydrant valve to discharge the fire extinguishing water through the outlet. The self-powered fire hydrant comprises: self-generator which generates electric energy by triboelectrification and electromagnetic induction phenomena when the fire extinguishing water is discharged through the outlet; and a notification unit which is operated by receiving the electric energy and provides a notification message to notify an operation status of the fire hydrant. The self-powered fire hydrant generates electricity and operates the notification unit in case of operation, to inform surroundings of a fire.

Description

Self-powered fire hydrant {SELF POWERED FIRE HYDRANT}

The present invention relates to a fire hydrant capable of self-generation.

A fire hydrant is a facility that supplies water for fire extinguishing in case of emergency such as a fire.

Fire hydrants are largely divided into indoor fire hydrants installed inside buildings and outdoor fire hydrants installed outside buildings.

In order to reduce casualties in the event of a fire, it is necessary to notify the surrounding area of the fire when using a fire hydrant.

However, in order to notify the occurrence of such a fire, a notification means operated by a separate power source is essential to the fire hydrant, and it is difficult to install a power supply device and its wiring due to the characteristics of the fire hydrant.

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KR10-1705807B1 KR10-1880878B1

The present invention provides a self-powered fire hydrant capable of generating electric power when the fire hydrant is operating and operating a notification unit to notify the surrounding area of a fire.

In order to achieve the above object, the self-powered hydrant according to an embodiment of the present invention is coupled to a rod and a rod that elevates and lowers the hydrant valve, and operates the hydrant valve while raising and lowering the rod through rotation. In the fire hydrant for discharging fire-fighting water through the outlet, a self-generator that generates electric energy through a triboelectric charging shape and electromagnetic induction phenomenon when water is discharged through the outlet of the fire hydrant; and a notification unit providing a notification message for notifying the operation state of the fire hydrant.

According to an embodiment of the present invention, the self-generator includes the rotatable electrode body, and a rotating member for rotating the rotatable electrode body by rotating by the extinguishing water when the fire fighting water is discharged to the outlet; It is installed at a distance capable of contacting the rotating electrode body and includes at least one fixed member coupled to the fixed electrode body contacting and separated from the rotating electrode body rotated by the rotating member, and according to the rotation of the rotating member, the fixed electrode body is coupled. Electrical energy may be generated through the triboelectric charging phenomenon and electromagnetic induction phenomenon, which are generated through repeated contact and separation between the rotating rotating electrode body and the fixed electrode body.

According to an embodiment of the present invention, the fixed electrode body is made of a non-metal material and includes a fixed non-metal part that is in contact with and separated from the rotatable electrode body, and is connected to the fixed non-metal part between the fixed non-metal part and the rotatable electrode body. It is composed of a fixed metal part that generates electric charge upon separation of the rotatable electrode body. It may include a rotatable metal part in which an electric charge is generated.

According to an embodiment of the present invention, the fixed electrode body is composed of the fixed metal part and the fixed non-metal part sequentially stacked on top of a fixed plate, and the fixed metal part, the fixed non-metal part, and a part of the fixed plate are part of the fixed member. It can be coupled by being inserted into the fixing groove.

According to an embodiment of the present invention, the rotatable metal part of the rotatable electrode body is formed in one region of the transparent electrode plate, and the rotatable non-metal part is formed in another region adjacent to one region of the transparent electrode plate, and the A typical metal part and a part of the transparent electrode plate may be inserted and fixed into the fixing groove of the rotating member to be coupled to the rotating member.

According to an embodiment of the present invention, the rotating member has a hollow in which the rod is inserted so as to enable the lifting and lowering movement of the rod, an upper boss to which the rotatable electrode body is coupled and a lower boss connected to the upper boss Including, on the outer surface of the lower boss, a plurality of wings that rotate by the fire extinguishing water when the fire extinguishing water is discharged through the outlet may be installed.

According to an embodiment of the present invention, in the self-powered hydrant, the upper end boss of the rotating member protrudes upward, and the first coupling hole coupled to the lower end boss protrudes downward, and the rod can be raised and lowered so that the lifting and lowering of the rod is possible. A support plate having a second coupling hole coupled to the rod may be further provided, and the fixing member may be installed on the support plate corresponding to a position where the rotatable electrode body can contact the fixed electrode body when the lower end boss rotates. .

According to an embodiment of the present invention, the rotating member may be rotatably coupled to the support plate through a first bearing portion formed on an inner surface of the first coupling hole.

According to an embodiment of the present invention, the rod may be coupled to the support plate so as to move up and down through a second bearing part formed on an inner surface of the second coupling hole.

According to the above-described embodiment of the present invention, when the fire hydrant discharges water for fire-fighting, it generates electric power through self-generation and operates the notification unit to notify the surroundings of the occurrence of a fire through a fire hydrant that can operate on its own without being connected to an external power source. can have an effect.

1 is a view showing the concept of a self-powered fire hydrant according to an embodiment of the present invention.
2 is a view for explaining the configuration of a self-powered fire hydrant according to an embodiment of the present invention.
3 is a perspective view showing the internal configuration of a self-powered fire hydrant according to an embodiment of the present invention.
4 is a view showing the structure of a self-generator according to an embodiment of the present invention.
5 and 6 are views showing the configuration of the rotating member of the self-generator according to an embodiment of the present invention,
7 is a cross-sectional view of a fixed electrode body according to an embodiment of the present invention.
8 is a cross-sectional view of a rotating electrode body according to an embodiment of the present invention.
9 is a view for explaining a coupling process between the rotating electrode body and the rotating member according to an embodiment of the present invention.
10 is a view for explaining a coupling process between the fixed electrode body and the fixed member according to an embodiment of the present invention.
11 is a view for explaining a process of producing electrical energy through friction between a rotating electrode body and a fixed electrode body.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following detailed description is provided to provide a comprehensive understanding of the methods, devices, and/or systems described herein. However, this is merely an example, and the present invention is not limited thereto.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. The terminology used in the detailed description is for the purpose of describing embodiments of the present invention only, and should in no way be limiting.

Hereinafter, a self-powered fire hydrant and an operating method thereof will be described with reference to the accompanying drawings.

1 is a view showing the concept of a self-powered fire hydrant according to an embodiment of the present invention, FIG. 2 is a view for explaining the configuration of a self-powered fire hydrant according to an embodiment of the present invention, and FIG. 3 is the present invention is a perspective view showing the internal configuration of a self-powered fire hydrant according to an embodiment of the FIG. 7 is a cross-sectional view of a fixed electrode body according to an embodiment of the present invention, and FIG. 8 is a cross-sectional view of a rotary electrode body according to an embodiment of the present invention, FIG. 9 is a view for explaining the coupling process between the rotating electrode body and the rotating member according to the embodiment of the present invention, Figure 10 is a view for explaining the coupling process between the fixed electrode body and the fixed member according to the embodiment of the present invention. , FIG. 11 is a view for explaining a process of producing electrical energy through friction between a rotating electrode body and a fixed electrode body.

1 to 10, the self-powered hydrant 100 is formed therein and generates power according to the operation of the self-powered hydrant 100. The self-generator 200 and the self-generator 200. It may include a notification unit 300 that operates by receiving power generated by the . Here, the notification unit 300 is for notifying the operating state of the self-powered fire hydrant 100 in the form of an LED, and may include an LED-based display means, a siren, and the like, but is not limited thereto.

The self-powered fire hydrant 100 according to the embodiment of the present invention is coupled to the rod 30 and the rod 30 for elevating and lowering the hydrant valve 70 and raising and lowering the rod 30 through rotation. By operating a valve (not shown), fire extinguishing water is sprayed to the outside through the outlet 50, and when the fire fighting water is discharged to the outside, the notification unit 300 is operated using the power generated from the self-generator 200 can do it

That is, the self-powered hydrant 100 opens and closes the hydrant cover 10, the main body 20, and a disk (not shown) to block the supply of water for fire extinguishing by lifting and lowering the hydrant valve (not shown) and the hydrant valve. It may be composed of a rod 30 and an operating nut 40 mounted on the hydrant cover 10 and screw-coupled to the rod 30 .

In such a self-powered hydrant 100, when the operating nut 40 is rotated, the rod 30 rises and falls while operating the hydrant valve to turn the operating nut 40 in one direction so that the hydrant valve is moved downward to close the hydrant valve. By opening the flow path, fire water is supplied to the fire hose through the outlet 50. On the other hand, if the operating nut 40 is turned in the opposite direction after using the fire water, the fire hydrant valve is closed as the upper and lower rods go up and down.

The self-generator 200 according to the embodiment of the present invention may be applied to the self-powered fire hydrant 100 having the structure as described above. Specifically, the self-generator 200 may generate electricity by generating friction electricity when water for fire-fighting is discharged through the outlet 50 of the self-generation type fire hydrant 100, and the generated power is a load. By supplying it to the unit 300 , the notification unit 300 may be operated.

The self-generator 200 according to the embodiment of the present invention operates the self-powered fire hydrant 100, that is, the rotating member 210 and the rotating member 210 that are rotated when the fire-fighting water is discharged through the outlet 50. It may be implemented through a plurality of fixing members 220 disposed on a circular arc within a preset radius as a reference. In this case, the rotating member 210 and the fixing member 220 may be made of a metal material, and may be connected to the notification unit 300 .

The rotating member 210 is rotatably coupled to the rod 30 and the rotating electrode body 212 is coupled to the side, and when the fire water is discharged to the outlet 50 of the self-powered fire hydrant 100, it is added to the fire water. can be rotated by According to the rotation of the rotating member 210, the rotating electrode body 212 coupled to the side may be rotated.

The fixing member 220 may include a fixed electrode body 222 in contact with the rotational electrode body 212 .

The fixed electrode body 222 is made of a non-metal material and is connected to the fixed non-metal part 222a and the fixed non-metal part 222a that are in contact with the rotating electrode body 212 and is generated in contact with the rotating electrode body 212. It may be composed of a fixed metal part 222b that applies friction electricity to the notification part 300 through the fixing member 220 .

In particular, the fixed electrode body 222 according to the embodiment of the present invention may be formed by stacking a fixed non-metal part 222a and a fixed metal part 222b, and a part is inserted into the side surface of the fixing member 220 and combined. can be Specifically, the fixed non-metal part 222a may be inserted into and coupled to a portion of the fixing member 220 so as to have a direction in which the fixed non-metal part 222a may come into contact with the rotatable non-metal part 212a of the rotatable electrode body 212 . To this end, a fixing groove 224 in which a part of the fixed electrode body 222 in which the fixed non-metal part 222a and the fixed metal part 222b are stacked is inserted and fixed may be formed in the fixing member 220 . .

Meanwhile, the fixed non-metal part 222a of the fixed electrode body 222 may be formed using a non-conductive material such as polytetrafluoroethylene (PTFE), polyimide, or wool.

Also, the fixed metal part 222b may be formed using a conductive material such as gold or aluminum.

Meanwhile, the fixed non-metal part 222a and the fixed metal part 222b may be formed on the fixing plate 222c made of Kapton and coupled to the fixing member 220 . Specifically, a part of the fixed electrode body 222 composed of a fixed plate 222c on which the fixed non-metal part 222a and the fixed metal part 222b are stacked is inserted and fixed into the fixing groove 224 and coupled to the fixing member 220 . can be

The rotatable electrode body 212 according to the embodiment of the present invention is connected to a rotatable non-metal part 212a in contact with the fixed non-metal part 222a and the rotatable non-metal part 212a to form a rotatable non-metal part 212a and The fixed non-metal part 222a may include a rotational metal part 212b that provides frictional electricity generated according to the contact to the notification part 300 through the rotation member 210 .

In an embodiment of the present invention, the rotational non-metal part 212a and the rotational metal part 212b are formed on the transparent electrode plate 212c, so that the rotational electrode body 212 may be configured. Specifically, the rotatable non-metal part 212a is attached to an upper portion of one region (A) of the transparent electrode plate 212c, and is in contact with the rotatable non-metal part 212a in another region (B) of the transparent electrode plate 212c. By attaching the rotatable metal part 212b as much as possible, the rotatable electrode body 212 may be formed.

The transparent electrode plate 212c and the rotating metal part 212b may have flexible properties, and may be made of indium tin oxide (ITO), graphene, a conductive polymer material (Pedot:pss), a silver nanowire material, or the like. .

On the other hand, when the rotating electrode body 212 is rotated by the rotating member 210, in order to maximize the frictional force between the fixed non-metallic part 222a and the rotating non-metallic part 212a in contact with the transparent electrode plate 212c A bending preventing member 212d may be attached to a lower portion of the one region A.

When the rotational electrode body 212 having this structure is rotated by the rotation member 210 and the rotational non-metal part 212a comes into contact with the fixed non-metal part 222a and passes through, the transparent electrode plate of the other region B It can pass through the fixed non-metal part 222a while being bent by the flexible nature of the 212c and the rotatable metal part 212b formed thereon.

On the other hand, the rotating member 210 to have a direction in which the rotating non-metal part 212a of the rotating electrode body 212 according to the embodiment of the present invention can contact the fixed non-metal part 222a of the fixed electrode body 222 . ) and may be inserted into a part of it and combined. To this end, the rotating member 210 may be formed with a fixing groove 214 into which a portion of the rotating metal part 212b and the transparent electrode plate 212c of the rotating electrode body 212 can be inserted and fixed. .

The rotatable non-metal part 212a of the rotatable electrode body 212 may be formed using a non-conductive material such as polytetrafluoroethylene (PTFE), polyimide, or wool.

Also, the rotatable metal part 212b may be formed using a conductive material such as gold or aluminum.

When the fire hydrant 100 operates through this structure, by rotating the rotary electrode body 212 through the rotation of the rotary member 210, the rotary non-metal part 212a of the rotary electrode body 212 rotates. A contact between the fixed electrode body 222 and the fixed non-metal part 222a of the fixed electrode body 222 occurs, and friction electricity may be generated through this contact.

Such friction electricity is applied to the notification unit 300 as a load through the rotating metal part 212c, the rotating member 210, the stationary metal part 222b and the fixing member 220 to operate the notification unit 300. can

In order to apply the self-generator 200 to the rod 30 , the rotating member 210 includes an upper boss 230 and a lower boss 240 in which a hollow 216 is formed to enable the lifting and lowering movement of the rod 30 . ) can be composed of

The rod 30 of the self-powered hydrant 100 may be coupled to the hollow 216 formed in the upper boss 230 and the lower boss 240 to be movable up and down.

The cylindrical size of the upper boss 230 may have a larger structure than the cylindrical size of the lower boss 240 .

The lower end boss 240 may have an impeller shape, that is, a plurality of wings 242 may be formed on the outer surface of the lower end boss 240 . In this case, the plurality of wings 242 may have a curved shape.

Also, a blocking film 235 having a hollow space may be provided between the lower boss 240 and the upper boss 230 . Due to this structure, the plurality of wings 242 formed on the outer surface of the lower boss 240 may be connected to the lower surface of the blocking film 235 .

Through this, when the lower boss 240 is rotated by the plurality of wings 242 , the blocking film 235 and the upper boss 230 formed thereon may be rotated.

A fixing groove 214 to which the rotatable electrode body 212 is fixed may be formed in the upper boss 230 .

When the fire fighting water is discharged through the outlet 50 through the structure as described above, the fire fighting water collides with the plurality of wings 242 of the lower end boss 240, and the lower end boss 240 by the plurality of wings 242 , the rotating member 210 composed of the blocking film 235 and the upper boss 230 may be rotated.

In addition, the rotating member 210 having the structure as described above may be installed inside the self-powered fire hydrant 100 through the support plate 250 .

The support plate 250 is fixedly coupled to the inside of the upper body 20 adjacent to the hydrant cover 10 of the self-powered hydrant 100, and a part of the rotating member 210, that is, the upper boss 230, protrudes upward and A first coupling hole 252 through which the lower boss 240 and the blocking film 235 are coupled to protrude downward may be provided.

A first bearing part 254 may be provided on an inner circumferential surface of the first coupling hole 252 . Since the rotating member 210 is rotatably coupled through the first bearing part 254 , only the rotating member 210 can be rotated when the rotating member 210 is rotated by fire water.

In addition, the central portion of the support plate 250 may be provided with a second coupling hole 256 to which the rod 30 is coupled to enable lifting and lowering.

A second bearing part 258 may be provided on the inner circumferential surface of the second coupling hole 256 . By being coupled to the support plate 250 so that the rod 30 can be raised and lowered through the second bearing part 258 , only the rod 30 can be raised and lowered on the second coupling hole 256 of the support plate 250 . .

The fixing member 220 is on a circular arc corresponding to a position at which the rotating electrode body 212 can contact the fixed electrode body 222 when the rotating member 210 rotates, that is, a contactable distance with respect to the rotating member 210 . It may be installed on the support plate 250 corresponding to the portion.

According to the embodiment of the present invention as described above, the lower end boss 240 has been described as having an impeller shape having a plurality of blades 242 as an example, but may have a screw shape.

The operation of the self-powered fire hydrant 100 having the above-described configuration will be described as follows.

First, by turning the operating nut 40 in one direction, the hydrant valve is moved downward, the hydrant valve is opened to open the flow path, and as water is supplied to the fire hose through the outlet 50, the water is supplied through the outlet 50. The plurality of wings 242 formed on the outer surface of the lower end boss 240 of the rotary member 210 are rotated by the fire water.

Accordingly, the upper end boss 230 connected to the lower end boss 240 rotates, and according to the rotation of the upper end boss 230 , the rotating non-metal part 212a of the rotating electrode body 212 is attached to the fixing member 220 . It rotates while in contact with the fixed fixed non-metal part 222a.

Through this operation, frictional electricity is generated according to the contact between the rotating non-metallic part 212a and the fixed non-metallic part 222a, and such frictional electricity is generated by the rotating electrode body 222, the fixed electrode body 212, and the rotating member ( 220 ) and the fixing member 210 may be applied to the notification unit 300 corresponding to the load to operate the notification unit 300 .

That is, the self-generator 200 according to an embodiment of the present invention is a triboelectric nanogenerator that generates electrical energy by a triboelectric charging phenomenon and an electromagnetic induction phenomenon, as shown in FIGS. 11A to 11E , The rotatable non-metal part 222a and the fixed non-metal part 212a are respectively charged with positive and negative charges by charging heat generated as they come into contact, and the rotatable metal part 222a is separated from the fixed non-metal part 212a. As the distance increases, a flow of electric charges may occur in the rotatable metal part 222b and the fixed metal part 212b, which are metal electrodes, due to a screening effect. At this time, when the distance between the rotatable electrode body 222 and the fixed electrode body 212 is maximized, the flow of charges disappears, and when the rotatable electrode body 222 and the fixed electrode body 212 come close again, the advection is reversed. A flow of electric charges is generated in the direction, so that electricity can be supplied to the notification unit 300 serving as a load.

As described above, when the reciprocating motion between the rotating electrode body 220 and the fixed electrode body 210 is performed, an alternating current is generated, and as the generated current is applied to the notification unit 300 serving as a load, the notification unit 300 ) may operate to inform the outside of the operating state of the self-powered fire hydrant 100 .

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations are possible by those skilled in the art to which the present invention pertains without departing from the essential characteristics of the present invention. Accordingly, the embodiments expressed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate, and the scope of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas that are equivalent to or within the equivalent range should be construed as being included in the scope of the present invention.

100: self-powered fire hydrant
200: self-generator
210: rotating member
212: rotating electrode body
212a: rotating non-metal part
212b: rotating metal part
212c: transparent electrode plate
212d: bending prevention member
214, 224: fixed groove
220: fixing member
222: fixed electrode body
222a: fixed non-metal part
222b: fixed metal part
222c: fixing plate
250: support plate
252, 256: first and second coupling holes
254, 258: first and second bearing parts

Claims (9)

In a self-powered fire hydrant that is coupled to a rod and a rod that elevates and lowers the hydrant valve, and operates the hydrant valve while lifting and lowering the rod through rotation to discharge water through the outlet,
A self-generator that generates electrical energy through a triboelectric charging shape and electromagnetic induction phenomenon when water for fire fighting is discharged through the outlet of the fire hydrant;
and a notification unit providing a notification message for notifying the operation state of the fire hydrant by receiving the electrical energy and operating;
The self-generator,
a rotating member having a rotating electrode body and rotating the rotating electrode body by rotating by the fire extinguishing water when the fire fighting water is discharged to the outlet;
At least one fixing member installed at a distance capable of contacting the rotational electrode body and coupled to the fixed electrode body contacting and separated from the rotational electrode body rotated by the rotation member,
Electric energy is generated through the triboelectric charging phenomenon and electromagnetic induction phenomenon generated through repeated contact and separation between the rotating electrode body rotated according to the rotation of the rotating member and the fixed electrode body,
The fixed electrode body,
It consists of a fixed non-metal part made of a non-metal material and contacting and separated from the rotating electrode body, and a fixed metal part connected to the fixed non-metal part and generating electric charge when the fixed non-metal part and the rotating electrode body are separated,
The rotatable electrode body,
A rotatable non-metal part that is in contact with and separated from the fixed non-metal part, and a rotatable metal part that is connected to the rotatable non-metal part and generates an electric charge upon separation from the fixed non-metal part, wherein the rotation type of the rotatable electrode body The metal part is formed in one region of the transparent electrode plate, the rotatable non-metal part is formed in another region adjacent to one region of the transparent electrode plate, and the rotatable metal part and a part of the transparent electrode plate are fixed to the rotating member. It is inserted and fixed in the groove and is coupled to the rotating member,
The rotating member has a hollow in which the rod is inserted so that the rod can move up and down, and includes an upper end boss to which the rotatable electrode body is coupled, and a lower end boss connected to the upper end boss,
A plurality of wings are installed on the outer surface of the lower end boss to rotate by the fire extinguishing water when the fire extinguishing water is discharged through the outlet,
The self-powered fire hydrant,
A support plate having a first coupling hole coupled to the upper end boss of the rotating member so that the upper boss protrudes upward, and a second coupling hole coupled to the rod to enable lifting and lowering of the rod. provided,
The fixing member is
A self-powered fire hydrant installed on the support plate corresponding to a position where the rotating electrode body can contact the fixed electrode body when the lower boss rotates.
delete delete According to claim 1,
The fixed electrode body,
It consists of the fixed metal part and the fixed non-metal part sequentially stacked on top of a fixed plate, and a part of the fixed metal part, the fixed non-metal part and the fixed plate is inserted into the fixed groove of the fixed member and coupled to the self-powered fire hydrant.
delete delete delete According to claim 1,
The rotating member is a self-powered fire hydrant that is rotatably coupled to the support plate through a first bearing part formed on the inner surface of the first coupling hole.
According to claim 1,
The load is
A self-powered fire hydrant coupled to the support plate so as to be able to ascend and descend through a second bearing portion formed on the inner surface of the second coupling hole.

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