KR101799246B1 - Deveice for closing a valve of hydrant box - Google Patents

Abstract

The present invention relates to a device for turning a valve of a hydrant box to a closed position by using fire water jetted from a fire hose. The device for closing a valve of a hydrant box comprises: a fire hose having a first flow path and a second flow path; a nozzle provided at the end of the fire hose for bringing a part of fire water flowing in the first flow path into the second flow path according to an operation; a main valve for supplying the fire water by being opened; an interlock valve connected in series with the main valve in the supply direction of the fire water and supplying the fire water to the first flow path when the valve is opened; and an interlock valve driving unit for driving the interlock valve according to the drawing of the fire hose and the operation of the nozzle. The interlock valve driving unit comprises: a water tank storing valve driving water; a buoyancy member connected to an operation shaft of the interlock valve to open and close the interlock valve according to a water surface height of the valve driving water stored in the water tank; a discharge port for discharging the valve driving water as the fire hose is drawn out; and an inlet port connected to the second flow path and receiving the fire water serving as valve driving water in the water tank according to the operation of the nozzle.

Description

[0001] DESCRIPTION [0002] FIELD OF THE INVENTION [0003]

FIELD OF THE INVENTION The present invention relates to a fire hydrant valve locking device, and more particularly, to a fire hydrant valve locking device using water pressure of a fire water jetted from a fire hose.

The conventional fire extinguishing hose is housed in the fire hydrant in a folded state to reduce the storage volume as shown in Figs.

In the event of a fire, the user opens the fire hydrant valve, pulls the fire hose to the fire position, and then extinguishes the fire by spraying fire water through the nozzle.

According to such a conventional firefighting box construction, when the fire hydrant valve is opened, the fire hose folded by the water pressure is rapidly expanded, and if the fire suppressor is a child or a senior citizen, the fire hose may be missed, and the fire hose may be injured.

If the fire hose is pulled out without opening the fire hydrant valve sufficiently, there may be insufficient water pressure for fire evolution due to lack of water pressure. At this time, when one person is required to extinguish the fire, the fire extinguisher must return to the fire hydrant to open the fire hydrant valve, which can result in a fatal time delay in the event of emergency fire suppression. Also, the moment the fire suppressor comes back to the fire hydrant with the fire hose, the water continues to be sprayed from the fire hose, which may lead to unnecessary flooding damage to the area other than the fire scene.

On the other hand, when the fire suppression is completed, the fire hydrant valve should be closed to prevent unnecessary flood damage. However, in case of one fire extinguisher, the fire extinguisher must hold the fire hose and return to the fire hydrant alone.

Korean Utility Model Registration No. 20-0280566 and Korean Patent No. 10-0666561 disclose only a configuration in which the fire hydrant valve is opened in the process of taking out the fire hose.

Patent Document 1: Korean Utility Model Registration No. 20-0280566 Patent Document 2: Korean Patent No. 10-0666561

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a fire hydrant valve locking device for turning a hydrant valve to a lock position by using water pressure of fire water jetted from a fire hose.

According to one aspect of the present invention, there is provided an apparatus for turning a fire hydrant valve to a locked position using fire water ejected from a fire hose, the apparatus having a first flow path and a second flow path, Fire hose; A nozzle installed at an end of the fire hose for introducing part of the fire water flowing into the first flow path into the second flow path according to an operation; A main valve for supplying fire water according to opening; An interlock valve connected in series with the main valve based on the supply direction of the water discharge and supplying the water to the first flow passage when the valve is opened; And an interlocking valve driving unit for driving the interlocking valve in conjunction with the drawing of the fire hose and the operation of the nozzle, wherein the interlocking valve driving unit includes: a water tank accommodating the valve driving water; A buoyancy member connected to an operation shaft of the interlock valve and performing opening and closing of the interlock valve according to a water surface height of the valve driving water accommodated in the water tank; A discharge port for discharging the valve driving water as the fire hose is drawn out; And an inlet connected to the second flow path and supplied with fire water serving as a valve driving water in association with the operation of the nozzle.

In this case, the nozzle may include: A channel connection switch for forming a passage through which the first flow path and the second flow path are connected, in the inside of the nozzle; And a rotary valve that closes the first flow path by rotation so that at least a part of the fire water flowing in the first flow path flows into the second flow path through the passage.

At this time, the interlock valve driving unit further includes a water discharge hose having one end connected to the discharge port and the connection port, and the other end of the water discharge hose is opened, and a position higher than the water level of the valve drive water So that it can be folded together with the fire hose.

At this time, in the standby state, the valve driving water is provided so as to have a water surface corresponding to the height of the operating shaft of the interlock valve, and the interlock valve is a ball valve having an operating angle of 90 degrees, And can be connected to the buoyancy member.

At this time, the interlocking valve is disposed on the lower side of the water tank as a T-type three-way valve, the first connection part of the T-type three-way valve serves as the discharge port, and the second connection part of the T- And the third connection portion of the T-type three-way valve may be connected to the fire hose.

Meanwhile, the buoyancy member maintains a state where the first connection portion of the T-type three-way valve is connected to the third connection portion in a standby state, and the valve driving water is supplied to the first connection portion Type three-way valve is connected to the third connecting portion, the second connecting portion of the T-type three-way valve is connected to the third connecting portion to drive the operating shaft of the T-type three-way valve.

According to the hydride valve lock apparatus according to the embodiment of the present invention,

First, since the valve driving water accommodated in the water tank is discharged according to the fire hose withdrawal, the operator does not have to worry about the rapid hose expansion, and thus the main valve can be completely opened.

Second, according to the first embodiment, the valve driving water accommodated in the water tank is discharged in accordance with the drawing of the fire hose, so that the interlock valve is opened gradually, so that an accident caused by the rapid hose expansion can be prevented.

Thirdly, since the interlocking valve driving unit drives the interlocking valve by discharging the valve driving water accommodated in the water tank, the valve driving water can serve as a safety device for restricting the opening of the interlocking valve at a normal time.

Fourth, since the fire water is filled into the water tank along the second flow path according to the operation of the nozzle, the interlock valve can be locked.

1 is a photograph of a conventional fire extinguisher.
2 is a photograph of another conventional digester;
3 is a schematic view of a hydrant valve locking device according to a first embodiment of the present invention.
4 is a sectional view of the fire hose shown in Fig.
5 is a cross-sectional view illustrating the operation of the nozzle shown in Fig.
6 illustrates a valve opening operation according to the first embodiment of the present invention.
7 illustrates a valve locking operation according to the first embodiment of the present invention.
8 is a schematic view of a hydride valve locking device according to a second embodiment of the present invention.
Fig. 9 illustrates the operation of the T-type three-way valve in the second embodiment.
Fig. 10 illustrates a valve opening operation according to the second embodiment of the present invention.
11 illustrates a valve locking operation according to the second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

3 is a schematic view of a hydrant valve locking device according to a first embodiment of the present invention. 4 is a sectional view of the fire hose shown in Fig. 5 is a cross-sectional view illustrating the operation of the nozzle shown in Fig. 6 illustrates a valve opening operation according to the first embodiment of the present invention. 7 illustrates a valve locking operation according to the first embodiment of the present invention. 8 is a schematic view of a hydride valve locking device according to a second embodiment of the present invention. Fig. 9 illustrates the operation of the T-type three-way valve in the second embodiment. Fig. 10 illustrates a valve opening operation according to the second embodiment of the present invention. 11 illustrates a valve locking operation according to the second embodiment of the present invention.

3 to 11, a fire hydrant valve locking apparatus 1000 according to the present invention is a device for turning a fire hydrant valve to a locked position using fire water ejected from a fire hose,

And includes a fire hose H, a main valve 100, an interlock valve 200, an interlock valve driving part 300, and a nozzle 400. The interlock valve driving unit 300 includes a water tank 310, a buoyancy member 320, an outlet 330, and an inlet 360.

The fire hose H is a hose for moving fire water from a fire extinguisher box to a fire site. The fire hose H of the present invention has a first flow path H1 and a second flow path H2.

Since the first flow path H1 is a flow path for moving the high-pressure fire water, it is preferable that the first flow path H1 is formed of a material constituting a normal fire hose. The second flow path H2 serves to return the water W1 flowing through the first flow path H1 to the water tub 310 of the interlock valve driving part 300. [ Therefore, it may be formed to have a smaller sectional area than the first flow path H1.

The first flow path H1 and the second flow path H2 may be formed by separate separate hoses. However, in order to reduce the storage volume, the second flow path H2 is formed of a surface of a material constituting the first flow path H1 As shown in Fig.

The nozzle 400 is provided at the end of the fire hose H so that a part of the fire water flowing in the first flow path H1 flows into the second flow path H2 according to the operation.

Referring to FIG. 4, the nozzle 400 includes a nozzle 430, a flow path connecting switch 420, and a rotary valve 410.

The nozzle 430 discharges the water W1 supplied through the first flow path H1 to the fire site.

The channel connection switch 420 forms a passage G through which the first flow path H1 and the second flow path H2 are connected in the nozzle 400. [

The rotary valve 410 closes the first flow path H1 by rotation so that at least a part of the water W1 flowing in the first flow path H1 flows into the second flow path H2 through the passage G. [

4 (a) illustrates a state in which the water jetting water W1 is ejected from the nozzle 400. Fig. At this time, the flow path connecting switch 420 is located in the locking direction, and all the water W1 flowing in the first flow path H1 in the state in which the rotary valve 410 is parallel to the flow direction of the water W1, Lt; / RTI >

4B illustrates a state in which at least a part of the water W1 flowing in the first flow path H1 flows into the second flow path H2 through the passage G. Fig. For this operation, the channel connecting switch 420 is located in the opening direction and forms a passage G through which the first flow path H1 and the second flow path H2 are connected in the nozzle 400. [ In this state, when the rotary valve 410 is rotated, the first flow path H1 is narrowed, so that the water W1 flowing in the first flow path H1 flows into the second flow path H2, It is filled.

The water W1 'flowing into the second flow path H2 is filled in the water tank 310 and functions as a valve driving water W2 to be described later.

The main valve 100 is a valve that supplies the fire water W1 to the first flow path H1 of the fire hose H in accordance with opening. The main valve 100 may be a pressure reducing valve that reduces the pressure of the high-pressure fire water to a pressure conforming to the fire-fighting regulations in accordance with the structure of the fire fighting system of the building, or may be a conventional valve.

The interlock valve 200 is connected in series with the main valve 100 on the basis of the supply direction of the water W1 and supplies the water W1 to the first flow path H1 of the water hose H in accordance with the opening . That is, the interlock valve 200 is disposed between the main valve 100 and the water hose H.

The interlock valve drive unit 300 drives the interlock valve 200 in conjunction with the withdrawal of the fire hose H so that the fire water W1 is supplied to the first flow path H1 of the hose H by the interlock valve. In addition, the water tank 310 is filled in conjunction with the operation of the nozzle 400 so that the supply of the water W1 to the first flow path H1 is blocked.

To this end, the interlock valve drive 300 includes a water tank 310, a buoyancy member 320, an outlet 330 and an inlet 360.

The hydriding valve lock apparatus 1000 according to the present invention includes a function of opening the hydrant valve in conjunction with the withdrawal of the fire hose H provided in a folded state in the hydrant hatch.

The operation of opening the interlock valve 200 in conjunction with the withdrawal of the fire hose H will be described in advance of the description of the locking operation of the interlock valve 200. [

The water tank 310 receives the valve driving water W2.

The buoyancy member 320 is connected to the operating shaft 240 of the interlock valve 200 to open and close the interlock valve 200 according to the water surface height of the valve driving water W2 accommodated in the water tub 310 ).

The discharge port 330 discharges the valve driving water W2 as the return hose H is drawn out. The discharge port 330 may be provided below the water tank 310 for discharging the valve driving water W2.

In the present invention, the valve driving water W2 is for applying a buoyancy force to the buoyancy member 320, and normal water is sufficient. The valve driving water W2 may be supplied from a fire water supply line (not shown) branched from the main valve 100, or may be supplied from another water supply line.

The valve driving water W2 may be lost due to evaporation or the like and therefore the interlock valve driving part 300 may be provided with a water surface maintaining the water level of the valve driving water W2 at a predetermined height in a standby state in which the hose H is not drawn out And a height holding member (not shown).

When there is a separate water supply line for supplying the valve drive water W2, the water level holding member can be implemented as a wing valve interlocked with the water supply line.

According to the first embodiment of the present invention, the interlocking valve driving part 300 further includes a water quenching hose 350.

The water discharge hose 350 is connected to the discharge port 330 at one end and is opened at the other end and is connected to the fire hose 350 so as to have a position higher than the water level of the valve drive water W2 in the standby state, H) in the folded state.

The valve driving water W2 is not discharged in the standby state because the storage position of the water decantation hose 350 is higher than the water level of the valve driving water W2.

The valve driving water W2 is provided so as to have a water surface corresponding to a height at which the operation shaft 240 of the interlock valve 200 is disposed in the water tub 310. [ At this time, as shown in the figure, the buoyancy member 320 has a height corresponding to the water surface of the valve driving water W2 by buoyancy.

That is, the interlock valve 200 is connected to the buoyancy member 320 so as to be locked in the waiting state in which the valve driving water W2 is filled.

In the first embodiment, the interlock valve 200 is preferably implemented as a ball valve having an operating angle of 90 degrees. The buoyancy member 320 is connected to the operation shaft 240 of the interlock valve 200 through the connection arm 321. In the standby state in which the valve drive water W2 is filled, (240) in a locked state.

As shown in the drawing, when the user pulls out the fire hose H, the open end of the water hosing hose 350 is lowered by the gravity below the discharge port 330, 310 are discharged.

The water level is lowered due to the discharge of the valve driving water W2 and the buoyancy member 320 is lowered so that the operating shaft 240 of the interlock valve 200 is rotated 90 degrees to open the interlock valve 200. [

Since the user has opened the main valve 100 before the fire hose H is taken out, the opening of the interlock valve 200 is performed only by pulling out the fire hose H and dragging the fire hose H to the fire site, The water W1 is supplied to the first flow path H1 of the first flow path H2.

Next, the locking operation of the interlock valve 200 will be described with reference to FIG.

The interlock valve driving part 300 further includes an inlet 360 for locking operation of the interlock valve 200.

The inlet 360 is connected to the second flow path H2 and receives the water W1 'acting as a valve driving water to the water tub 310 in conjunction with the operation of the nozzle 400. [

When the user desires to stop the supply of the water W1, the supply of the water W1 may be stopped through the operation of the connection switch 420 and the rotary valve 410, as described with reference to FIG.

At least a part of the water W1 flowing in the first flow path H1 flows into the second flow path H2 through the passage G. [ When the user places the channel connection switch 420 in the opening direction, a passage G is formed in the nozzle 400 to connect the first flow path H1 and the second flow path H2. In this state, when the rotary valve 410 is rotated, the first flow path H1 is narrowed, so that the water W1 flowing in the first flow path H1 flows into the second flow path H2, It is filled.

The fire water W1 'flowing into the second flow path H2 fills the water tub 310 through the inlet 360. [ 6, the buoyancy member 320 rises, and thus the operating shaft 240 of the interlock valve 200 rotates by 90 degrees to lock the interlock valve 200.

Although not shown in FIG. 6 or 7, it is preferable to further include a device for locking the discharge port 330 so as not to be discharged to the discharge port 330 when the fire water W1 'flows through the inlet port 360 .

8 to 11 relate to the second embodiment of the present invention. According to the second embodiment, the interlock valve 200 'is implemented by a T-type three-way valve.

The hydride valve lock apparatus 1000 according to the second embodiment of the present invention also includes a function of opening the hydrant valve in conjunction with the withdrawal of the fire hose H provided in the folded state.

The operation of opening the interlock valve 200 in conjunction with the withdrawal of the fire hose H will be described in advance of the description of the locking operation of the interlock valve 200. [

Since the fire hose H and the nozzle 400 according to the second embodiment are the same as the fire hose H and the nozzle 400 according to the first embodiment, a duplicate description will be omitted.

According to the second embodiment, the interlocking valve 200 'is a T-type three-way valve and disposed below the water tub 310.

At this time, the first connection part 210 'of the T-type three-way valve 200' serves as a discharge port 330. That is, when the fire hose H is drawn out, the valve driving water W2 is discharged to the first flow path H1 of the fire hose H through the first connecting portion 210 '.

The second connection portion 220 'of the T-type three-way valve 200' is connected to the main valve 100.

The interlock valve 200 'is connected in series with the main valve 100 on the basis of the supply direction of the water W1 and supplies the water W1 to the first flow path H1 of the water hose H do. That is, the interlock valve 200 'is disposed between the main valve 100 and the water hose H, and more specifically, the second connection portion 220' is connected to the main valve 100.

The third connection portion 230 'of the T-type three-way valve 200' is connected to the first flow path H1 of the fire hose H.

The buoyancy member 310 'maintains a state where the first connection portion 210' of the T-type three-way valve 200 'is connected to the third connection portion 230' in the standby state,

When the valve driving water W2 is discharged through the third connection part 230 'according to the drawing state of the fire hose H, the second connection part 220' of the T-type three-way valve 200 ' 230 'so as to drive the operating shaft 240' of the T-type three-way valve 200 '.

9A and 9B illustrate operation of the T-type three-way valve T-type three-way valve. In FIG. 9A, the first connection part 210 'of the T- The valve driving water W2 is discharged so that the buoyancy member 320 'moves to the position where the T-type three-way valve 200' is opened and the second connection part 220 ' Is connected to the third connection part 230 '.

On the other hand, when the user takes out the fire hose H as shown in FIG. 10, the valve driving water W2 contained in the water tank 310 flows into the first flow path H1 of the folded fire hose H. The fire hose H is folded when the user pulls out the fire hose H and the fire hose H is lifted up to the floor lower than the water tank 310 by its own weight And the valve driving water W2 flows into the first flow path H1 of the folded fire hose H by the potential energy.

The water level is lowered due to the discharge of the valve driving water W2 and the buoyancy member 320 'is lowered so that the operating shaft 240' of the interlock valve 200 ' Opening takes place.

At this time, the interlock valve driving unit 300 further includes a fixing member (not shown) for fixing the buoyancy member 320 'to a standby state until the level of the valve driving water W2 falls below a predetermined height .

The buoyancy member 320 'is slowly lowered in accordance with the discharge of the valve driving water W2. In this case, the opening of the T-type three-way valve 200', that is, the second connection part 220 ' Is not clearly connected with the third connection part 230 ', a fixing member for restraining the lowering of the buoyancy member 320' is required until the valve driving water W2 is sufficiently discharged.

That is, when the water level of the second buoyancy member becomes lower than the predetermined water level, the fixing member may be implemented so that the buoyancy member 320 'is not fixed. The fixing member may be realized in the form of a trigger interlocked with the second buoyancy member (not shown), and the fixing member may be implemented in various forms according to the implementer.

Since the user has opened the main valve 100 before the fire hose H is taken out, the opening of the interlock valve 200 'is performed only by pulling out the fire hose H and dragging it to the fire site, (W1) is supplied to the first flow path (H1) of the flow path (H).

Next, the locking operation of the interlock valve 200 'will be described with reference to FIG.

The interlock valve driving part 300 further includes an inlet 360 for locking operation of the interlock valve 200 '.

The inlet 360 is connected to the second flow path H2 and receives the water W1 'acting as a valve driving water to the water tub 310 in conjunction with the operation of the nozzle 400. [

When the user desires to stop the supply of the water W1, the supply of the water W1 may be stopped through the operation of the connection switch 420 and the rotary valve 410, as described with reference to FIG.

At least a part of the water W1 flowing in the first flow path H1 flows into the second flow path H2 through the passage G. [ When the user places the channel connection switch 420 in the opening direction, a passage G is formed in the nozzle 400 to connect the first flow path H1 and the second flow path H2. In this state, when the rotary valve 410 is rotated, the first flow path H1 is narrowed, so that the water W1 flowing in the first flow path H1 flows into the second flow path H2, It is filled.

The fire water W1 'flowing into the second flow path H2 fills the water tub 310 through the inlet 360. [ 10, the buoyancy member 320 rises, and thus the operating shaft 240 of the interlock valve 200 'is rotated by 90 degrees to lock the interlock valve 200'.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

1000: Fire hydrant valve lock
H: Fire hose
100: Main valve
200: Interlocking valve
300: interlock valve driving part
400:

Claims (6)

An apparatus for turning a fire hydrant valve to a lock position using fire water jetted from a fire hose,
A fire hose having a first flow path and a second flow path;
A nozzle installed at an end of the fire hose for introducing part of the fire water flowing into the first flow path into the second flow path according to an operation;
A main valve for supplying fire water according to opening;
An interlock valve connected in series with the main valve based on the supply direction of the water discharge and supplying the water to the first flow passage when the valve is opened; And
And an interlock valve driving part for driving the interlocking valve in conjunction with the drawing of the fire hose and the operation of the nozzle,
The interlock valve drive unit includes:
A water tank accommodating the valve driving water;
A buoyancy member connected to an operation shaft of the interlock valve and performing opening and closing of the interlock valve according to a water surface height of the valve driving water accommodated in the water tank;
A discharge port for discharging the valve driving water as the fire hose is drawn out; And
And an inlet connected to the second flow path and supplied with fire water serving as a valve driving water in association with the operation of the nozzle. The method according to claim 1,
The nozzle
A nozzle for spraying water;
A channel connection switch for forming a passage through which the first flow path and the second flow path are connected, in the inside of the nozzle; And
And a rotary valve that closes the first flow path by rotation so that at least a part of the fire water flowing through the first flow path flows into the second flow path through the passage. The method according to claim 1,
The interlock valve drive unit includes:
And a water discharge hose having one end connected to the discharge port and the connection port,
Wherein the other end of the water discharge hose is opened and stored in a folded state together with the fire hose so as to have a position higher than the water level of the valve drive water. The method of claim 3,
In the standby state,
A water level corresponding to a height of the operation shaft of the interlock valve,
Wherein the interlock valve comprises:
A ball valve having an operating angle of 90 degrees,
Wherein the buoyancy member is connected to the buoyancy member so as to be locked in a standby state. The method according to claim 1,
Wherein the interlock valve comprises:
A T-type three-way valve disposed below the water tub,
The first connection part of the T-type three-way valve serves as the discharge port,
The second connection portion of the T-type three-way valve is connected to the main valve,
And the third connection portion of the T-type three-way valve is connected to the fire hose. The method of claim 5,
The buoyancy member
Way valve, the first connection portion of the T-type three-way valve is kept connected to the third connection portion in a standby state,
And a second connection part of the T-type three-way valve is connected to the third connection part when the valve driving water is discharged to the third connection part through the first connection part according to the drawing state of the fire hose, Wherein the hydraulic circuit is connected and arranged to drive the operating shaft.

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