KR20060017275A - Device for sensing opening or shutting of valve of fire extinguishing conduit - Google Patents

Abstract

The present invention relates to an open / close detection device for a hydrant valve. An open / close detection device for a hydrant valve according to the present invention includes a body rotatably installed in the body between a body having a flow path and connected to a fire water supply pipe, and a first position of opening the flow path and a second position of closing the flow path. A rotation shaft configured to open and close the flow path by the rotation, a handle coupled to the rotation shaft to rotate the rotation shaft, and a handle coupled to the handle so as to prevent the handle from being separated from the rotation shaft, and a front end thereof connected to the rotation shaft. In the fire fighting valve having a first bolt that is in close contact, the opening and closing detection device for a hydrant valve for detecting the opening and closing of the flow path,

A support member having a coupling hole into which the first bolt is fitted, coupled to the handle by being fastened to the handle while the first bolt is fitted to the coupling hole, the support member being rotated together when the handle is rotated; A magnet coupled to an upper portion of the hydrant valve; And a magnetic sensor coupled to the support member, wherein the magnet and the magnetic sensor are disposed to approach each other when the rotating shaft is positioned at the first position, so that the magnetic sensor senses the magnet. have.

Description

Device for sensing opening or shutting of valve of fire extinguishing conduit}

1 is a schematic perspective view of a conventional hydrant valve opening and closing detection device used in the hydrant valve.

Figure 2 is a schematic exploded perspective view of the opening detection device for a hydrant valve according to a preferred embodiment of the present invention.

3 and 4 are enlarged views of the main part of the hydrant valve opening and closing detection device shown in Figure 2, a view for explaining the operation of the hydrant valve opening and closing detection device shown in FIG.

<Explanation of symbols for the main parts of the drawings>

1 ... fire hydrant valve 2 ... body

3 ... Euro 4 ... axis of rotation

5 ... handle 6 ... first bolt

7 ... closing direction sign 8 ... 2nd bolt

100 ... open / close detection device for fire hydrant valve 10 ... support member

11 ... vertical 12 ... horizontal

13 ... mating hole 14 ... through hole

15 ... Nut 20 ... Magnet

30 ... magnetic sensor 31 ... magnetic sensor receptor

32 ... wires

The present invention relates to a fire hydrant valve which is installed to open and close the water supply pipe in a firefighting water supply pipe, more specifically, a so-called rotary butterfly valve, and more particularly, to a fire hydrant valve open / close detection device for detecting whether the fire hydrant valve is opened or closed. More particularly, the present invention relates to an open / close detection device for a hydrant valve that is easily installed in the hydrant valve.

All modern buildings and facilities are equipped with fire-fighting water lines and fire hydrant valves that can open and close these water lines in case of fire. In addition, in order to use water immediately in response to an unexpected fire, this fire water supply pipe must be kept open at all times. On the other hand, the fire hydrant valve may be closed and the water supply pipe may be temporarily closed, such as when the fire water supply pipe or the fire hydrant valve is being repaired, or the fire water supply pipe is cleaned. After completing such repair work or cleaning work, the fire water supply pipe must be opened again, but the fire water supply pipe can be left in a closed state due to the carelessness of the operator. Therefore, it is always necessary to check whether the fire water supply pipe is opened or closed. The opening and closing of the fire hydrant pipe is determined according to the opening and closing of the hydrant valve used in the water supply pipe, and thus the hydrant valve opening and closing detection device for checking the opening and closing state of the hydrant valve has been used.

The hydrant valve (butterfly valve) and the opening / closing detection apparatus for the conventional hydrant valve provided in this hydrant valve are shown in FIG.

Referring to FIG. 1, the hydrant valve 1 includes a body 2, a rotation shaft 4, a handle 5, and a first bolt 6.

The body 3 is connected to a fire water supply pipe (C). A flow path 3 through which water flows is formed in the lower part of the body 2, and when the body is connected to the fire water supply pipe C, the flow path 3 communicates with the flow path P of the fire water supply pipe C. do.

The rotary shaft 4 is for opening and closing the flow path 3, and a valve body 4a is provided at the lower portion thereof. The rotary shaft 4 is installed on the body 2 so as to be rotatable between a first position that opens the flow path 3 and a second position that closes the flow path 3, so that the rotation shaft 4 is in one direction. The flow path 3 is opened as it rotates and the flow path 3 is closed as it rotates in the other direction. The upper part of the rotating shaft 4 is formed with a key 4b protruding from the outer circumferential surface of the rotating shaft 4.

The handle 5 is for rotating the rotary shaft 4, is disposed on the upper portion of the body 2 is fitted to the rotary shaft 4 is coupled. The handle 5 is provided with a key groove (not shown) corresponding to the key 4b so that the key 4b of the rotary shaft 4 can be fitted therein. The key 4b of the rotary shaft 4 is fitted into the key groove of the handle 5 so that when the handle 5 is rotated, the rotary shaft 4 is also rotated together. Moreover, the screw hole 5a which penetrates the handle 5 is formed in the side part of the said handle 5.

The first bolt 6 is to prevent the handle 5 from being separated from the rotation shaft 4 and is fastened to a screw hole of the handle 5. When the first bolt 6 is fastened to the handle 5 in this manner, the front end of the first bolt 6 presses the rotation shaft 4 and adheres to the rotation shaft 4 so that the handle 5 is closed. Departure from the rotational shaft 4 is prevented.

On the other hand, the hydrant valve (1) is provided with a thin plate-shaped opening and closing display panel (7) disposed between the body (2) and the handle (5). The opening and closing direction display panel 7 is screwed onto the upper portion of the body 2 by a plurality of second bolts 8. The opening / closing direction display panel 7 displays the rotation direction of the handle 5, that is, the direction in which the flow path 3 is opened and the direction in which the flow path 3 is closed. A plurality of holes 7a are formed in the open / close direction display panel 7 along the circumferential direction of the open / close direction display panel 7.

On the other hand, the conventional fire hydrant valve opening and closing detection device 9 is used in combination with the hydrant valve (1) having the above configuration. The conventional fire hydrant valve opening and closing detection device 9 is composed of a magnet 9a, a magnetic sensor 9b, and a fixed bar 9c.

The magnet 9a is coupled to and fixed to the upper portion of the body 2. That is, the opening / closing direction display panel 7 is located at a portion of the upper portion of the body 2 that is exposed to the outside, that is, the portion of the upper portion of the body 2 where the hole 7a of the opening / closing display panel 7 is formed. After the groove is formed in the portion not covered by the magnet, the magnet 9a is inserted into the groove. However, the body 2 of the hydrant valve 1 is generally made of cast iron, there is a disadvantage that it is not easy to form a groove.

The magnetic sensor 9b is for sensing the magnet 9a and is fitted into and coupled to the fixing bar 9a to be described later.

The fixing bar (9c) is for supporting the magnetic sensor (9b), made of a thin bar (bar), is screwed to the handle (5). Thus, in order to screw the fixing bar (9c) to the handle (5) it is necessary to perform a process to form a screw hole (5a) in the upper portion of the handle (5).

Thus, after installing the conventional fire hydrant valve opening and closing detection device (9) to the hydrant valve (1), when the user rotates the handle (5) in one direction, the rotary shaft (4) coupled to the handle (5) It rotates in one direction, and the valve body 4a formed in the lower part of the said rotating shaft 4 will open the said flow path 3. When the flow path 3 is opened in this way, the magnetic sensor 9b is located close to the magnet 9a, and the magnetic sensor 9b senses the magnet 9a to open the flow path 3. A signal indicating that the signal has been sent is sent.

On the other hand, when the handle 5 is rotated in the other direction, the rotation shaft 4 and the valve body 4a also rotate together to close the flow path 3. When the flow path 3 is closed in this way, since the magnetic sensor 9b is located far from the magnet 9a, the magnet 9a cannot be detected, and thus a signal indicating that the flow path 3 is closed is sent out. .

However, as described above, when the conventional hydrant valve opening / closing detection device 9 is installed in the hydrant valve 1 (the butterfly valve), the body 9 is inserted in the body 2 so as to insert the magnet 9a into the body 2. 2) processing is required to form a hole in the body (2) is made of cast iron is not only difficult to process, but also to fix the fixing bar (9c) to the handle (5) of the hydrant valve (1) Since the processing of forming a hole in the handle 5 must also be performed, there is a problem that the installation work is not easy.

The present invention has been made in view of the above-described problems, and more particularly, an object of the present invention is to provide an open / close detection device for a hydrant valve that can be easily installed in a rotary butterfly valve.

The opening and closing detection device for a fire hydrant valve according to the present invention for achieving the above object, between the body having a flow path and connected to the water supply pipe for fire, between the first position to open the flow path and the second position to close the flow path; A rotating shaft rotatably installed on the body to open and close the flow path by the rotation, a handle coupled to the rotating shaft to rotate the rotating shaft, and fastened to the handle to prevent the handle from being separated from the rotating shaft. And a tip end portion used for a fire valve having a first bolt in close contact with the rotating shaft, and for detecting opening and closing of the flow path, having a coupling hole into which the first bolt can be fitted. 1 bolt is coupled to the handle by being fastened to the handle in the state fitted in the coupling hole, the handle A support member that is rotated with rotation; A magnet coupled to an upper portion of the hydrant valve; And a magnetic sensor coupled to the support member, wherein the magnet and the magnetic sensor are disposed to approach each other when the rotating shaft is positioned at the first position, so that the magnetic sensor senses the magnet. have.

According to the present invention, the support member is formed with a through hole which penetrates the support member and is elongated in the form of a long hole, and the magnetic sensor is preferably fitted into the through hole.

In addition, according to the present invention, the support member has a 'b' shape, made of a vertical portion in contact with the side of the handle and a horizontal portion bent from the vertical portion in contact with the upper portion of the handle, the coupling hole is the vertical Preferably, the through hole is formed in the horizontal portion.

In addition, according to the present invention, in order to adjust the position where the support member is coupled, the coupling hole is preferably formed long in the form of a long hole.

In addition, according to the present invention, the opening and closing direction display panel for indicating the opening and closing direction of the flow path is fixed to the upper portion of the body of the hydrant valve by a plurality of second bolts, the magnet is any of the plurality of second bolts It is preferably coupled to one head.

Hereinafter, with reference to the accompanying drawings, it will be described in more detail the opening and closing detection device for a hydrant valve according to a preferred embodiment of the present invention.

The opening and closing detection device for a hydrant valve according to the present embodiment is used for a hydrant valve such as the hydrant valve 1 described with reference to FIG. 1.

Figure 2 is a schematic exploded perspective view of the opening and closing detection device for a hydrant valve according to a preferred embodiment of the present invention, Figure 3 and Figure 4 is an enlarged view of the main portion of the opening and closing detection device for a hydrant valve shown in FIG. , The drawing for explaining the operation of the fire hydrant valve opening and closing device according to the embodiment.

2 to 4, the opening and closing detection device 100 for a hydrant valve according to a preferred embodiment of the present invention includes a support member 10, a magnet 20, and a magnetic sensor 30.

The support member 10 has a vertical portion 11 in contact with the side of the handle 5 of the hydrant valve 1 in a '-' shape, and is bent from the vertical portion 11 so that It consists of a horizontal portion 12 in contact with the upper portion. In the vertical portion 11, a coupling hole 13 penetrating the vertical portion 11 is formed. As the first bolt 6 of the hydrant valve 1 is fastened to the screw hole 5a of the handle 5 in a state of being fitted into the coupling hole 13, the support member 10 is connected to the handle 5. ) Is combined. In addition, the coupling hole 13 is long along the longitudinal direction of the handle 5 is in the form of a long hole, the position where the support member 10 is coupled to the handle 5 is the handle 5 Adjustable along the length of The support member 10 is thus coupled to the handle 5 so that the handle 5 can rotate between a first position that opens the flow path 3 and a second position that closes the flow path 3. At this time, the support member 10 is also rotated between the first position and the second position. In the horizontal portion 12 of the support member 10, a through hole 14 penetrating the horizontal portion 12 is formed. The through hole 14 is a part to which the magnetic sensor 30 to be described later is fitted and coupled so that the coupling position of the magnetic sensor 30 can be adjusted so that the through hole 14 is disposed along the lengthwise direction of the horizontal part 12 so that In form.

As described above, the opening and closing direction display panel 7 is disposed on the upper part of the body 2 of the hydrant valve 1, more specifically, between the body 2 and the handle 5. 7) is coupled to the body 2 by the plurality of second bolts (8). The magnet 20 is coupled to any one of the plurality of second bolts 8 of the hydrant valve 1. Preferably, a groove (not shown) is formed in the head of the second bolt 8, and the magnet 20 is inserted into and coupled to the groove. When the rotary shaft 4 is rotated in one direction and placed in the first position to open the flow path 3, the magnet 20 is disposed at the point where the magnetic sensor 30 to be described later is placed.

The magnetic sensor 30 is for sensing the magnet 20, is fitted into the through hole 14 of the support member 10 and coupled thereto. The magnetic sensor 30 is for detecting the magnet 20 when the handle shaft 4 is in the first position to open the flow path 3, and is inserted into the magnetic sensor container 31. It is fitted into the through hole 14 of the support member 10. That is, a thread is formed on the outer circumferential surface of the magnetic sensor container 31, and when the magnetic sensor container 31 is fitted into the through hole 14, the pair of nuts 15 closes the through hole 14. It is fastened to the outer peripheral surface of this magnetic sensor container 31 from the upper and lower ends of the magnetic sensor container 31 in between. A wire 32 is connected to the magnetic sensor 30, and when the magnetic sensor 30 detects a magnet, it transmits a detection signal to a control system not shown.

Hereinafter, a usage example of the fire hydrant valve open / close detection device 100 according to the present embodiment will be described.

The magnet 20 is inserted into the second bolt 8 having a groove formed in the head thereof, and the second bolt 8 is coupled to the body 2 of the hydrant valve 1. Thereafter, the magnetic sensor receptor 31 in which the magnetic sensor 30 is accommodated is inserted into the through hole 14, and the pair of nuts 15 are fastened to the outer circumferential surface of the magnetic sensor receptor 31. The magnetic sensor receptor 31 is coupled to the support member 10. Thereafter, the first bolt 6 is fastened to the handle 5 in a state where the first bolt 6 is inserted into the coupling hole 13 of the support member 10. Since the coupling hole 13 is arranged to be long in the form of a long hole, when the first bolt 6 is fastened as described above, the support member 10 is positioned along the longitudinal direction of the handle 4. By moving, the position at which the support member 10 is coupled can be easily adjusted. In addition, when the rotary shaft 4 is placed in the first position, the magnetic sensor receptor 31 is supported by the support member so that the magnetic sensor receptor 31 can be disposed close to the magnet 20. 10) can be adjusted to the combined position. That is, since the through hole 14 is arranged long along the longitudinal direction of the horizontal portion 11 of the support member 10 in the form of a long hole as described above, when the magnetic sensor receptor 31 is coupled By moving the magnetic sensor receptor 31 along the through hole 14, the magnetic sensor receptor 31 may be coupled to the support member 10. As described above, the coupling hole 13 is formed in the opening and closing detection device 100 for the hydrant valve according to the present embodiment, by using the first bolt 6 provided in the hydrant valve 1. There is an advantage that can be installed very simply the opening and closing detection device 100 for the hydrant valve. That is, as the conventional opening and closing detection device for the hydrant valve (9) can be omitted because the operation to form a hole in the handle (5) for its installation is easy to install. In addition, the coupling hole 13 and the through hole 14 are all made of a long hole, there is an advantage that the coupling position of the support member 10 and the coupling position of the magnetic sensor 30 can be easily adjusted.

Thus, after the installation of the fire hydrant valve opening and closing detection device 100 according to this embodiment is completed, when opening the flow path 3, the handle 5 is rotated in one direction. In this way, when the handle 5 is rotated approximately 90 degrees in one direction, the rotating shaft 4 coupled to the handle 5 rotates, and the valve body 4a formed below the rotating shaft 4 also rotates, The flow path 3 is opened. When the flow path 3 is opened in this way, the rotation shaft 4 is placed in the first position, and as shown in FIG. 3, the magnetic sensor 30 is located directly above the magnet 20. . When the magnetic preposition 30 and the magnet 20 are disposed in close proximity, the magnetic sensor 30 detects the magnet 20 and transmits a signal to confirm that the flow path 3 is opened through the wire 32. Will be sent.

On the other hand, in the case where the flow path 3 is to be closed in order to perform repair work in the state in which the flow path 3 is open, when the handle 5 is reversely rotated in the other direction, the rotation shaft 4 is interlocked with it. ) And the valve body 4a also rotate to close the flow path 3. At this time, as shown in Figure 4, the magnetic sensor 30 is disposed far from the magnet 20 does not detect the magnet 20, the magnetic sensor 30 is the flow path (3) A signal confirming that it is closed is transmitted through the wire 32.

As described above, the hydrant valve opening and closing detection device according to the present invention, unlike the conventional hydrant valve opening and closing detection device that must work to form a separate hole in the handle, it is made of the existing hydrant valve Using one bolt, the installation work is very simple and easy.

Claims (5)

A rotating shaft having a flow path and rotatably installed in the body between a body connected to the fire water supply pipe, a first position for opening the flow path, and a second position for closing the flow path; And a handle coupled to the rotary shaft to rotate the rotary shaft, and a first bolt fastened to the handle to prevent the handle from being separated from the rotary shaft, and having a tip end thereof in close contact with the rotary shaft. In that, in the fire hydrant valve opening and closing detection device for detecting the opening and closing of the flow path, A support member having a coupling hole into which the first bolt is fitted, coupled to the handle by being fastened to the handle while the first bolt is fitted to the coupling hole, the support member being rotated together when the handle is rotated; A magnet coupled to an upper portion of the hydrant valve; And a magnetic sensor coupled to the support member. When the rotary shaft is in the first position, the magnet and the magnetic sensor are arranged to approach each other, the magnetic sensor detects the magnet, opening and closing detection device for a hydrant valve, characterized in that. The method of claim 1, The support member has a through-hole penetrating the support member is formed long in the form of a long hole, the magnetic sensor is fitted into the through-hole detection device for the fire hydrant valve, characterized in that coupled. The method of claim 2, The support member has a 'b' shape, consisting of a vertical portion in contact with the side of the handle and a horizontal portion bent from the vertical portion in contact with the top of the handle, The coupling hole is formed in the vertical portion, the through hole is an opening and closing detection device for a hydrant valve, characterized in that formed in the horizontal portion. The method of claim 1, In order to adjust the position of the support member is coupled, the coupling hole is an open and close detection device for a hydrant valve, characterized in that is formed long in the form of a long hole. The method of claim 1, Opening and closing direction display panel for indicating the opening and closing direction of the flow path is fixed to the upper portion of the body of the hydrant valve by a plurality of second bolts, The magnet is coupled to the head of any one of the plurality of second bolts, the fire hydrant valve opening and closing detection device.

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