KR20150001501U - Device for sensing opening or shutting of vave for fireplug - Google Patents

Abstract

According to the present invention,
A main body including a hemispherical rotation cap accommodating portion, a switch accommodating portion provided at one side of the rotation cap accommodating portion, and a plurality of fixing portions formed below the side surface of the rotation cap accommodating portion to engage the rotation cap accommodating portion with the upper surface of the valve,
A rotary shaft which is accommodated in a rotary cap accommodating portion of the main body and has an engaging groove which is engaged with a front end of a valve rotary shaft and on an outer surface thereof a display portion for visually displaying whether the opening / and,
A switch accommodated in the switch accommodating portion and being turned on and off by the operating protrusion in accordance with rotation of the rotary cap;
A connector for fixing a protective cable for protecting a wire connected to the switch, and a connection pipe having one end coupled to the connector and the other end coupled to the switch accommodating portion, do.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fire-

The present invention relates to an opening / closing detection device for a fire hydrant valve, and more particularly, to a device for detecting whether a fire hydrant valve is open or closed by opening and closing a fire water supply pipe.

Generally, various buildings and facilities are equipped with a fire-fighting water supply pipe and a fire hydrant valve capable of opening and closing the water supply pipe in preparation for a fire. In addition, in order to use water immediately in response to a sudden fire, the fire-fighting water pipe must be kept open at all times. On the other hand, when the fire-fighting water supply pipe or fire hydrant valve is to be repaired, or when the fire-fighting water pipe is cleaned, the fire hydrant valve may be closed to temporarily close the water pipe. When the repair work or the cleaning work is completed, the fire-fighting water supply pipe must be opened again, but the fire-fighting water supply pipe can be left in a state of being closed due to carelessness of the operator. Therefore, it is necessary to always check whether the fire-fighting water supply pipe is opened or closed. Opening and closing of the fire-fighting water supply pipe is determined according to opening and closing of the fire hydrant valve used in the water supply pipe. Therefore, a fire-extinguishing valve opening / closing sensor for checking the opening and closing state of the fire hydrant valve has been used. Opening and closing devices for fire hydrant valves include those disclosed in Korean Utility Model No. 20-2013-0003866 and Korean Patent No. 10-0619540.

The above-mentioned prior art detects the fire-fighting water supply pipe when it is opened and informs it so that it plays a role in itself. However, the above prior arts are suitable for a valve in which the handle of the hydrant valve is installed above the valve and the lift shaft is moved up and down, and there is a surface which is not suitable for the butterfly valve in which the handle shaft and the rotation axis of the valve are arranged vertically .

In addition, although the alarm sounds by the sensor when the hydrant is opened, there is a disadvantage that it is not easy to visually check the opening and closing of the valve when the sensor fails.

Published Utility Model No. 20-2013-0003866 Patent No. 10-0619540

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a fire hydrant valve opening / closing detection device for detecting whether a hydrant valve is opened and visually opening or not, The purpose is to provide.

According to an aspect of the present invention, there is provided an opening / closing sensing device for a hydrant valve,

A main body including a hemispherical rotation cap accommodating portion, a switch accommodating portion provided at one side of the rotation cap accommodating portion, and a plurality of fixing portions formed below the side surface of the rotation cap accommodating portion to engage the rotation cap accommodating portion with the upper surface of the valve,

A rotary shaft which is accommodated in a rotary cap accommodating portion of the main body and has an engaging groove which is engaged with a front end of a valve rotary shaft and on an outer surface thereof a display portion for visually displaying whether the opening / and,

A switch accommodated in the switch accommodating portion and being turned on and off by the operating protrusion in accordance with rotation of the rotary cap;

A connector for fixing a protective cable for protecting a wire connected to the switch, and a connection pipe having one end coupled to the connector and the other end coupled to the switch accommodating portion, do.

In this case, the switch includes: an elastic lever having one end coupled to the switch body and the other end coupled to a rotating roller; a switch body partially protruding from the switch body; the switch being pushed by the elastic lever to operate the switch; And a tempo button that is restored to its original position.

The connector may further include a rear portion coupled to the coupling tube, a fixed end formed integrally with the rear portion and formed in an arc shape and having a first coupling portion, And a free end portion extending in an arc shape and formed with a second engaging portion facing the first engaging portion.

The opening / closing detection device for a hydrant valve according to the present invention has an advantage that it can be visually confirmed whether or not the hydrant valve is opened or closed by an alarm by a switch operation.

In addition, unlike the conventional opening / closing detection device, it is easy to check whether the hydrant valve is open or closed according to the rotation of the valve shaft of the butterfly valve.

1 is a perspective view of an embodiment of the present invention;
2 is an exploded perspective view of one embodiment of the present invention;
3 is a partial perspective view of an embodiment of the present invention;
4 is a partial perspective view according to another embodiment of the present invention;
5 is an explanatory view of operation of the present invention;

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail to avoid unnecessary obscuration of the present invention. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a valve opening / closing sensing device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of a fire hydrant valve opening / closing sensing device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a fire hydrant valve opening / closing sensing device according to an embodiment of the present invention.

1 and 2, a fire hydrant valve opening / closing sensing apparatus according to an embodiment of the present invention includes a body 10, a rotary cap 20, a switch 30, a connector 40, a connection pipe 50, .

As shown in Figs. 1 and 2, the main body 10 includes a rotation receiving portion 110, a switch receiving portion 12, and a fixing portion.

The rotary cap accommodating portion 110, the switch accommodating portion 12, and the fixing portion are preferably integrally molded and formed of a transparent synthetic resin material.

The rotatable cap receiving portion 110 is formed in a hemispherical shape having a convex shape and a space formed therein. In the interior of the rotation cap accommodating portion 110, a rotary cap 20, which rotates in combination with the tip of the valve rotation shaft, is accommodated. The outer surface of the rotatable cap receiving portion 110 is formed with a transparent portion 111 and an opaque portion 112. As shown in FIG. 1, the transparent portion 111 and the opaque portion 112 are alternately formed by dividing the outer surface into four equal parts. The opaque portion 112 may be formed by applying an opaque paint to the outer surface or adding an opaque material.

It is preferable that a plurality of the fixing portions 13 are formed below the side surface of the rotation cap accommodating portion 110. And an engaging groove 131 protruding outward to engage with the fixing screw 132 is provided. The main body 10 can be fixed by inserting the securing screw 132 into the engaging groove 131 and engaging the securing screw 132 with the screw groove 133 previously formed on the upper surface of the hydrant valve. As shown in FIG. 2, it is preferable to form the fixing portions 13 in the remaining three portions except the portion where the switch accommodating portion 12 is formed.

The rotation cap accommodating portion 110 accommodates the rotation cap 20 therein. The rotary cap 20 is formed in a convex hemispherical shape and has an engagement groove 22 formed below the rotary shaft 20 so as to be engaged with the rotary shaft tip 4 protruding outward from the hydrant valve. The rotary cap 20 is engaged with the valve rotary shaft tip 4, and when the rotary shaft rotates, the rotary cap 20 also rotates together.

A display portion (21) is formed on the outer surface of the rotary cap (20). The display unit 21 includes an open display unit 211 and a closed display unit 212. The open display unit 211 and the closed display unit 212 alternate with each other as shown in FIG. The open display unit 211 and the closed display unit 212 may be distinguished from each other by different colors or may be classified by inserting open or closed characters.

The rotary cap (20) is provided with an operating projection (23). The operating protuberance 23 protrudes outside the lower portion of the rotary cap 20. [ When the rotary cap 20 rotates, the operating protrusion 23 moves together to reach the switch accommodating portion 12, thereby operating the switch 30. [

A switch accommodating portion 12 is provided at one side of the rotation cap accommodating portion 110 so as to communicate with the rotation cap accommodating portion 110. The switch accommodating portion 12 is provided with a switch 30 therein. The switch 30 includes a body 31, an elastic lever 32, and a tempo button 34. [ The switch body 31 is fixedly coupled to the switch accommodating portion 12 and the elastic lever 32 is located at a portion where the switch accommodating portion 12 and the rotary cap accommodating portion 110 are connected, And the tempo button 34 is positioned between the body and the body. One end of the elastic lever 34 is fixed to the switch body 31 and is bent obliquely toward the rotation cap accommodating portion 110.

As shown in FIGS. 1 to 4, the switch accommodating portion 12 may be provided with an opening / closing indicator lamp 14 connected to the switch 30 and operated when the switch is turned on. When the switch is turned on when the light emitting portion is protruded to the outside of the switch accommodating portion, a current flows through the opening / closing display lamp 14 and light is emitted from the light emitting portion. That is, when the fire-fighting valve is closed, light is emitted to the light-emitting portion, thereby informing that the valve is closed. It is preferable that the opening / closing display lamp 14 uses an LED.

A rotation roller 33 is coupled to the other end of the elastic lever 32. The rotating roller 33 serves to allow the elastic lever 32 to be pressed smoothly by the operating protrusion 23. When the operating protrusion 23 moves in the direction of the elastic lever 32 in accordance with the rotation of the rotary cap 20, it contacts the rotating roller 33 and pushes the elastic lever 32 toward the switch body 31. The pushed resilient lever 32 pushes the tempo button 34 arranged so that the tip protrudes between the resilient lever 32 and the switch body 31. Some of the tempo buttons 34 are accommodated in the inside of the body, some protrude out of the body, and are elastically biased toward the outside of the body by a spring. When the elastic button 34 is pressed, the switch 30 is pushed into the body 31 and the switch 30 is restored to its original position when the pressure is released.

When the tempo button 34 is depressed, the switch 30 is connected to a power line so that the switch 30 can open or close the hydrant valve in an electrical signal. Generally, when the tempo button 34 is depressed, it means that the hydrant valve is closed.

The wire connected to the switch 30 extends into the protective cable 60 through a connecting tube 50 communicating with the switch accommodating portion 12. [

3, the connector 40 has a rear portion 43, a fixed end 41, and a free end 42, as shown in Fig.

The fixed end portion 41 extends from the rear portion 43 and is integrally formed and has an arc shape. The free end portion 42 extends from one side of the fixed end portion 41 and is formed in an arc shape. The free end portion 42 is connected to only one side of the fixed end portion 41 and is spaced apart from the rear side portion 43 with the slit 422 interposed therebetween.

 That is, since the distal end surface (semicircular end surface) of the fixed end portion 41 is connected to the rear surface portion 43, the fixed end portion 41 is elastically deformable. However, since the distal end (semicircular section) of the free end 42 is separate from the rear portion 43, the free end 42 is only connected to one side of the fixed end 41. Thus, the free end 42 can be elastically changed in the direction in which it extends from the fixed end 42. The free end portion 42 is made of a plastic material so that it has elasticity. When the pressure is released, the free end portion 42 is elastically restored to its original position.

 A first engaging portion 45 is formed on the fixed end portion 41 and a second engaging portion 46 is formed on the free end portion 42. The inner circumferential surfaces of the fixed end portion 41 and the free end portion 42 are arranged so as to form a circular cross section and cover the protective cable 60 in a state where the free end portion 41 is in the home position (solid line state in FIG. 3) At this time, the first engaging portion 45 and the second engaging portion 46 are disposed to face each other.

 The first coupling portion 45 and the second coupling portion 46 may have elongated holes and may be firmly coupled by fastening the fixing bolt 451 and the nut 452. [ (Not shown) may be formed in any one of the first engaging portion 45 and the second engaging portion 46 so as to be engaged only by the fixing bolts.

Further, since the free end portion 42 can be elastically opened, even if the thickness of the protection cable 60 is thin or thick within a certain range, the free end portion 42 can be coupled with the connector 40. [

On the other hand, when the thickness of the protective cable c is too thin, the O-ring 44 may be inserted into the connector 40 to connect the connector 40 to the connector 40, as shown in FIG.

The connector 40 may have the embodiment shown in Fig. 3 as described above, and other embodiments shown in Fig. The connector 40a shown in Fig. 4 is made in a cylindrical shape without a free end and a fixed end, and requires an additional holder (not shown).

The switch accommodating portion 12 and the connector 40 are connected by a connector 50. The connection pipe 50 is formed in the shape of a circular tube and is threaded at one end of the connection pipe 50 and is screwed to the coupling hole 121 formed in the switch accommodating portion 12, (Not shown) formed at the center of the connector rear face portion 43 so as not to fall out.

That is, when the connector 50 is first inserted into the connector 40 through the connecting hole, and one end of the screw 40 is screwed into the coupling hole 121 of the switch accommodating portion 12, the connector 40 is inserted into the switch accommodating portion 12 And the electric wire passing through the inside of the connection pipe 50 is guided into the protective cable 60.

Based on the above description, the operation of the opening and closing apparatus for a hydrant valve according to the present invention will be described. 1 and 5, when the handle 2 of the hydrant valve is turned, the handle shaft is rotated, the gear formed on the handle shaft and the gear formed on the valve shaft are engaged with each other, And the valve is opened and closed. When the valve rotation shaft rotates, the rotation cap 20 coupled to the tip 4 of the valve rotation shaft rotates, and the actuating protrusion 23 formed on the rotation cap 20 moves and presses the elastic lever 32. The elastic lever 32 presses the tempo button 34 and when the tempo button 34 is pressed, the switch 30 is actuated to send an electrical signal indicating that the valve is in the closed state. At this time, the closed display portion of the display portion of the rotary cap 20 is positioned to coincide with the transparent portion of the body rotation cap accommodating portion 110. When viewed from the outside, the closed display portion 212 is exposed through the transparent portion 111, so that it can be confirmed that the closed state is visually displayed.

While the present invention has been described in connection with certain exemplary embodiments and drawings, it is to be understood that the invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

10: Body
20: Rotating cap
30: Switch
40: Connector

Claims (3)

An opening / closing sensor for a hydrant valve installed on an upper portion of a hydrant valve for detecting opening / closing of an inner flow passage of the hydrant valve,
And a fixing part for fixing the rotation cap accommodating part to the upper surface of the valve, the rotation accommodating part being provided at a lower side of the rotation cap accommodating part, main body;
A rotary shaft which is accommodated in a rotary cap accommodating portion of the main body and has an engaging groove which is engaged with a front end of a valve rotary shaft and on an outer surface thereof a display portion for visually displaying whether the opening / ;
A switch accommodated in the switch accommodating portion, the switch being turned on / off by the operating protrusion in accordance with rotation of the rotary cap;
A connector for fixing a protective cable for protecting a wire connected to the switch; And
Wherein one end of the connector is coupled to the connector, and the other end of the connector is coupled to the switch accommodating portion, and a wire connected to the switch passes through the connector.
The method according to claim 1,
Wherein the switch comprises:
An elastic lever having one end coupled to the switch body and the other end coupled to the rotary roller,
And a tempo button which partially protrudes from the switch body and which is pushed by the elastic lever to actuate the switch and is restored to its original position when the elastic lever is restored.
The method according to claim 1,
Wherein the connector comprises:
A fixed end portion formed integrally with the rear surface portion and formed in an arc shape and having a first engaging portion and an arc shape extending from one side of the fixed end portion while being spaced apart from the rear portion, And a free end formed with a second engaging portion facing the first engaging portion.

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