KR20160045380A - Opening and closing valve having a opening and closing display lamp - Google Patents

Abstract

An opening and closing valve having an opening and closing display lamp is disclosed. The disclosed opening and closing valve having an opening and closing display lamp comprises: a valve body having a moving hole where water flows; an opening and closing unit provided in the valve body and opening and closing the moving hole; a power transmission unit providing power to operate the opening and closing unit; and an opening and closing display unit notifying an opening signal and a blocking signal by differently displaying the opening signal and the blocking signal when the opening and closing unit is opened and closed by operation of the power transmission unit. The present invention allows a user to easily recognize an opened state or a closed state of a valve.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an opening / closing valve,

The present invention relates to an opening / closing valve provided with an opening / closing indicator lamp, and more particularly, to an opening / closing valve provided in a valve body so that the opening state of the opening / Closing valves, which are provided with an opening / closing indicator lamp for indicating the opening / closing state of the valves in the field.

Generally, fire-fighting systems are installed in various buildings to automatically fire water through the head of the sprinkler when a fire occurs, thereby allowing the fire to evolve early or to prevent fire suppression and diffusion.

These fire fighting systems will have various forms depending on the shape and structure of the building. In general, however, a pump for increasing the water pressure is installed, and a water pipe connected to the pump is installed along the wall surface of the building, And an opening / closing valve is provided at a predetermined position of the water supply pipe to block or supply the water supply.

The opening / closing valve is provided at a predetermined position of the water supply pipe so as to open and close the water supplied to the head side of the sprinkler, but it is required that the water is always kept open at all times.

The opening / closing valve for the fire-fighting equipment adjusts the flow rate of the flowing water by adjusting the rotation angle of the disk through the operating part to adjust the flow rate of the water supplied to the sprinkler.

The conventional on-off valve includes a valve body, a disk that rotates at the valve body to adjust the amount of movement of the water, a rotating shaft that rotates the disk, and an operating portion that operates the rotating shaft.

The conventional opening / closing valve has a way of knowing the opening / closing amount of the water through the indicating needle. However, when the indicator needle is installed on the upper surface of the valve body, it can not be known when the opening / closing valve is installed at a high position.

Further, when the conventional open / close valve is completely opened, it can be opened through the lamp, but when the open / close valve is completely closed, there is no way of knowing it through the lamp.

Accordingly, there is a need to provide an opening / closing display unit capable of displaying a detection signal when the opening / closing valve is closed.

BACKGROUND ART [0002] A background art of the present invention is disclosed in Korean Utility Model Registration No. 20-0405825 entitled " Opening and Closing Detection Switch for Fire Fighting Equipment, 2006.01.04: Registered).

The present invention has been made in view of the above-described need, and it is an object of the present invention to provide an on-off display unit in a valve body, which displays an open state of the on- It is an object of the present invention to provide an opening / closing valve provided with an opening / closing indicator lamp which can easily detect the opening / closing state.

It is another object of the present invention to provide an opening / closing valve provided with an opening / closing display lamp which is provided with an auxiliary opening / closing display unit and which enables the opening / closing of the opening / have.

According to an aspect of the present invention, there is provided an on-off valve provided with an on / off indicator lamp, including: a valve body having a moving hole through which water flows; An opening / closing part provided on the valve body and opening / closing the moving hole; A power transmission unit for providing power for operating the opening / closing unit; And an open / close display unit for displaying an open signal and a shutoff signal differently when the opening / closing unit is opened / closed according to an operation of the power transmitting unit.

Further, the opening / closing part may include: a disk provided on the moving hole and rotating; A stem inserted into the valve body and axially coupled to the disk; And a seat installed on an inner peripheral surface of the moving hole to seal the disc.

The power transmission unit may include a worm wheel to which the stem is coupled and a worm wheel gear tooth is formed on one side thereof; A worm gear member having an outer circumferential surface formed with a worm gear tooth coupled to the worm wheel; And an operating unit provided at one end of the worm gear member to provide power.

Further, the worm wheel and the worm gear member are provided in a gear box, the worm wheel is formed in the shape of a fan-shaped gear, and the operating portion is any one of a handle and a lever.

Also, the opening / closing display unit may include a cam member coupled to one end of the stem provided at the opening / closing unit and rotating the cam in accordance with the operation of the power transmitting unit in the switch box; A contact switch portion interlocked with the cam to generate a first contact signal in the open / close portion open state and generate a second contact signal in the open / close portion cutoff state; And a separation display unit for displaying signals of different states according to the first contact signal and the first contact signal of the contact switch unit.

Further, the contact switch portion may include: an operation lever that is moved by the contact of the cam; A first contact portion which is brought into contact by a one-way operation of the operation lever to generate a first contact signal; And a second contact portion which is brought into contact with the operation lever by another operation of the operation lever to generate a second contact signal.

The separation display unit may further include: a first lamp that displays an open state of the opening / closing unit according to the first contact signal to inform the surroundings; And a second lamp formed in a color different from that of the first lamp and indicating a blocked state of the opening / closing part according to the second contact signal to inform the surroundings.

The first lamp is a green LED lamp, and the second lamp is a red LED lamp.

In addition, the first lamp and the second lamp are formed as a single body, and each of the first and second lamps displays different colors.

In addition to the opening / closing display unit, the portable terminal further includes an auxiliary opening / closing display unit for indicating an opening / closing state of the opening / closing unit.

The auxiliary opening / closing display unit may include a cap member coupled to the cam member of the opening / closing display unit and interlocking with opening / closing of the opening / closing unit, And a protective member formed on and covering the outer circumferential surface of the cap member to selectively expose the open visitor and the blocking character.

In addition, the protection member may alternately block the blocking character when displaying the open visitor, and the blocking region and the blocking region so that the opening character is hidden when the blocking character is displayed.

In addition, the blocking area may be formed by painting black on at least one of an inner side surface and an outer side surface of the protecting member, and the cap member may include a blocking character and an angle display unit for indicating an opening angle of the opening / Is further provided.

In addition, the perspective region is formed of a transparent material, the blocking region is formed of an opaque material, and the viewing region and the blocking region are formed twice at intervals of 90 degrees.

The first lamp and the second lamp may be provided on a printed circuit board.

In addition, the printed circuit board constitutes a circuit for realizing the first and second lamps for indicating the switch operation by using a falling voltage generated in the circuit, and the first and second lamps use a low power consumption LED And a status indicator is implemented within a range in which the fire alarm receiving unit does not detect false alarms.

The opening / closing valve provided with the opening / closing indicator lamp according to the present invention is provided with an opening / closing display portion in the valve body, and the opening state of the opening / closing valve and the blocking state of the opening / It is possible to easily know the opening /

In addition, the present invention provides an auxiliary opening / closing display unit, which allows the user to know whether the opening / closing valve is further opened or closed through letters and colors as the opening / closing valve is opened or closed.

FIG. 1 is a cross-sectional view illustrating an open / close valve provided with an open / close indicator lamp in an alarm valve according to an embodiment of the present invention.
2 is a side cross-sectional view of an on-off valve provided with an on / off indicator lamp according to an embodiment of the present invention.
3 is a front cross-sectional view of an on-off valve provided with an on / off indicator lamp according to an embodiment of the present invention.
4 is an exploded perspective view of an on-off valve provided with an on / off indicator lamp according to an embodiment of the present invention.
5 is an assembled perspective view of an on-off valve provided with an on / off indicator lamp according to an embodiment of the present invention.
6 is an exploded perspective view of a power transmission unit according to an embodiment of the present invention.
7 is an exploded perspective view of the opening and closing display unit and the auxiliary opening and closing display unit according to an embodiment of the present invention.
8 is a view showing an open state of the opening / closing display unit according to an embodiment of the present invention.
9 is a view showing a close state of an open / close display unit according to an embodiment of the present invention.
10 is a flowchart showing an operation state of a first lamp by opening an opening / closing display unit according to an embodiment of the present invention.
11 is a flowchart showing an operation state of the second lamp by close of the opening / closing display unit according to an embodiment of the present invention.
12 is a circuit diagram of the first and second lamps of the display unit according to the embodiment of the present invention.

Hereinafter, an on-off valve having an on / off indicator lamp according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a side sectional view of an on-off valve provided with an on-off indicator lamp according to an embodiment of the present invention; FIG. 2 is a cross- FIG. 3 is a front sectional view of an open / close valve having an open / close indicator lamp according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of an open / close valve having an open / close indicator lamp according to an embodiment of the present invention, 5 is an assembled perspective view of an on-off valve provided with an on / off indicator lamp according to an embodiment of the present invention.

FIG. 6 is an exploded perspective view of a power transmission unit according to an embodiment of the present invention, FIG. 7 is an exploded perspective view of an open / close display unit and an auxiliary opening / closing display unit according to an embodiment of the present invention, FIG. 9 is a view showing a close state of the open / close display unit according to an embodiment of the present invention, and FIG. 10 is a view showing a state where the open / close display unit is opened / closed according to an embodiment of the present invention. 11 is a flowchart showing an operation state of a second lamp by close of an open / close display unit according to an embodiment of the present invention, and FIG. 12 is a circuit diagram of the first and second lamps of the display unit according to the embodiment of the present invention.

1 to 12, an opening and closing valve 100 having an opening and closing indicator lamp according to an embodiment of the present invention includes a valve body 2, an opening and closing part 10, a power transmitting part 20, (30).

The opening / closing valve 100 provided with the opening / closing indicator lamp according to the embodiment of the present invention is installed adjacent to the alarm valve 1 (the water flow detection device) and controls the flow of the water supplied to the sprinkler through the alarm valve 1 And is provided at a set position of the fire-fighting water supply pipe.

The valve body (2) is provided with a moving hole (4) through which water flows toward the alarm valve (1) side. The valve body 2 is formed with a plurality of screw holes around the moving hole 4 so as to be fastened to the valve body of the alarm valve 1. [ In the drawings according to an embodiment of the present invention, eight are formed.

The opening and closing part 10 is provided in the valve body 2 and opens and closes the moving hole 4. [

The opening and closing part 10 includes a disk 12 installed on the moving hole 4 and rotating, a stem 14 inserted into the valve body 2 and axially coupled to the disk 12, And a seat 16 provided on an inner circumferential surface of the disk 12 to seal the disk 12. [

When the disk 12 is disposed horizontally with respect to the radial direction of the moving hole 4 by pivoting, the moving hole 4 is blocked, and the movement of the water flow is stopped.

In addition, when the disk 12 is arranged to be perpendicular to the radial direction of the moving hole 4 by the rotation, the moving hole 4 is opened and the water flow is performed.

A shaft insertion hole into which the lower end shaft of the stem 14 is inserted is formed at the center of the disk 12. The disc 12 and the stem 14 are formed with pin insertion grooves into which two or more fixing pins are inserted to fix the disc 12 to the stem 14.

The stem 14 has a long shaft and is coupled to the disk 12 at one end and coupled to the cam member 32 of the opening and closing display unit 50 described later at the other end.

The seat 16 is configured such that the inner peripheral surface thereof is elastically contacted with the outer peripheral surface of the disk 12 to perform sealing. The seat 16 is preferably made of a rubber material or a soft synthetic resin material.

As shown in Fig. 2, the seat 16 is formed so as to gradually expand toward both sides with respect to the center of the inner diameter when viewed from the side end face. As a result, when the disc 12 is rotated, it is rotated without being caught.

The power transmitting portion 20 is configured to provide power for operation of the opening and closing portion 10. [

The power transmission portion 20 includes a worm wheel 22 to which a stem 14 is coupled and a worm wheel gear tooth 24 is formed on one side thereof and a worm wheel tooth 27 which is coupled to the worm wheel 22, And a worm gear member (26). And an operating portion 28 provided at one end of the worm gear member 26 to provide power.

The worm wheel 22 and the worm gear member 26 are installed in the gear box 29.

The gear box 29 is seated on the upper flange of the valve body 2 and can be bolted or screwed and fixed.

The worm wheel 22 is preferably formed in the form of an annular gear. At this time, the worm wheel 12 is preferably formed in the form of a sector gear having a 90-degree angular range.

The worm gear member 26 has a set length, and the worm gear teeth 27 are formed spirally around the setting gap.

The operating portion 28 may be any one of a handle or a lever which is axially coupled to one side of the worm gear member 26. In the drawing according to an embodiment of the present invention, it is shown that the handle is made of a handle.

The open / close display unit 30 is configured to display an open signal and a shutoff signal differently according to the operation of the power transmitting unit 20 when the open / close unit 10 is open or closed.

The opening and closing display unit 30 can inform the surroundings of the opening state of the moving hole 4 of the valve body 20 and the blocking state of the moving hole 4 of the valve body 20 through the display of sound or color.

The opening and closing display unit 30 is connected to one end of the stem 14 provided in the opening and closing unit 10 and is disposed in the switch box 34 so that the cam 33 rotates in accordance with the operation of the power transmitting unit 20, A contact switch unit 40 interlocked with the cam 33 to generate a first contact signal in the opened state of the opening and closing unit 10 and generate a second contact signal in the open state of the opening and closing unit 10, And a separation display unit 50 for displaying signals of different states in accordance with the first contact signal and the second contact signal of the switch unit 40, respectively.

The switch box 34 is covered by a cover 36 by a plurality of screw connections.

The cam member 34 is provided with a first shaft 33a formed at one end thereof with respect to the cam 33 and a second shaft 33b formed at the other end thereof. The first shaft 33a protrudes to the lower end and is engaged with the groove formed on the upper surface of the stem 14. The second shaft 33b protrudes to the upper end and is fitted in a groove formed in the bottom surface of the cap member 62 of the auxiliary opening / closing member 60 described later.

One end of the first shaft 33a is formed in the form of a flat screwdriver and inserted and coupled to the straight groove portion of the stem 14.

The other end of the second shaft 33b is formed in the form of a flat-blade screwdriver, and is inserted and inserted into the groove portion formed on the bottom surface of the cap member 62. [

The contact switch unit 40 includes an operation lever 42 which is moved by the contact of the cam 33 and a first contact portion 44 which is in contact with the operation lever 42 by a one- And a second contact portion 46 which is brought into contact by an operation of the other direction of the operation lever 42 to generate a second contact signal.

Although the contact switch unit 40 is illustrated as being connected to the first and second lamps 52 and 54 to be described later by a two-wire method, the contact switch unit 40 may be configured to be connected by a three-wire method or another wire method.

The operation lever 42 may be made of a metal material which is electrically energized.

The separation display unit 50 includes a first lamp 52 that displays the open state of the opening and closing unit 10 in accordance with the first contact signal and informs the surroundings thereof and a second lamp 52 which is formed in a different color from the first lamp 52, And a second lamp 54 for indicating the blocking state of the opening / closing unit 10 according to the contact signal and informing the surroundings thereof.

The first lamp 52 may be a green LED lamp and the second lamp 54 may be a red LED lamp. The first lamp 52 and the second lamp 54 can be changed to other colors as needed. On the other hand, the colors of the first lamp 52 and the second lamp 54 may be reversed.

The first lamp 52 and the second lamp 54 may be provided on the printed circuit board 59.

Further, the printed circuit board 59 constitutes a circuit to realize the first and second lamps 52 and 54 for indicating the switch operation by using a falling voltage (voltage drop) generated in the circuit, 2 lamps 52 and 54 are preferably implemented with a low power consumption LED to implement a status indicator within a range that is not misrecognized in a fire fighting receptacle.

The first lamp 52 and the second lamp 54 are mounted on a printed circuit board 59 as shown in Figs. 10, 11, and 12, and the circuit is implemented by a two-wire method. It is necessary to apply the first lamp 52 and the second lamp 54 as low current consumption LED lamps because a low voltage is required in the fire fighting equipment and an LED lamp for indicating the operation of the switch through a voltage drop is required It is preferable to apply the two wiring method to the circuit pattern of the printed circuit board 59. In this case, the first and second lamps 57 and 58 for low current consumption are implemented with a power indicator .

In some cases, the first lamp 52 and the second lamp 54 are mounted on the printed circuit board 59, and a circuit may be formed by a three-wire method.

The first lamp 52 and the second lamp 54 are formed of a single body, and may represent different colors.

The first lamp 52 and the second ramp 54 are integrally formed so that when the moving hole 4 of the valve body 2 is opened by the rotation of the disk 12, When the movable hole 4 of the valve body 2 is blocked by the disc 12, a red color is displayed to inform the surroundings of the dangerous closed state.

The opening and closing valve 100 provided with the opening and closing indicator lamp according to the embodiment of the present invention further includes an auxiliary opening and closing display unit 60 for displaying the opening and closing states of the opening and closing unit 10, .

The auxiliary opening and closing display unit 60 is coupled to the cam member 32 provided on the opening and closing display unit 30 and is interlocked with opening and closing of the opening and closing unit 10 and displays the individual visitor 65 and blocking characters 66 And a protective member 64 formed on the outer circumferential surface of the cap member 62 and selectively covering the dog character 65 and the blocking character 65. The protection member 64 is formed on the outer surface of the cap member 62,

The upper end portions of the cap member 62 and the protection member 64 are hemispherical. That is, the upper end portions of the cap member 62 and the protection member 64 may be formed in a hat shape.

The display period of the open visitor 65 and the display period of the blocking character 66 in the cap member 62 can be made in different colors. This allows the user to recognize the open state and the blocked state through color It is for this reason.

It is preferable that the display period of the open visitor 65 in the cap member 62 is yellow or green and the display period of the blocking character 66 is red.

The guard member 64 may hide the block character 66 and display the blocking character 66 when displaying the individual visitor 65. The guard character 64 may be displayed in the viewing area 67 and the blocking area 66 68 are alternately formed.

A flange portion 64a may be formed around the protective member 64. [ The flange portion 64a can be coupled to the cover 36 for covering the switch box 34 by the fastening member.

The protective member 64 may be made of transparent plastic.

The blocking region 68 may be formed by applying a deep color such as black to at least one of the inner side surface and the outer side surface of the transparent protective member 64. At this time, the viewing region 67 is formed by the transparent protective member 64 itself due to the dark color of the blocking region 68.

The cap member 62 may further include an angle display unit 69 for indicating the angle of opening of the opening and closing unit 10 on the periphery of the blocking character 65 and the dog visitor 66.

A scale is described in the angle display portion 69, and a number indicating an angle is indicated on the upper side or the lower side of the scale.

Meanwhile, the viewing region 67 may be formed of a transparent material, and the blocking region 68 may be formed of an opaque material.

The viewing region 67 and the blocking region 68 are preferably formed twice at 90 degree intervals.

Hereinafter, the operation and effect of the opening / closing valve having the opening / closing indicator lamp according to the embodiment of the present invention will be described with reference to the accompanying drawings.

First, a state in which the movable hole 4 of the valve body 2 is opened will be described. When the user rotates the worm gear member 26 by turning the operation unit 28, the worm wheel gear teeth 24 engaged with the worm gear teeth 27 rotate, and the worm wheel 22 rotates in the gear box 29,

The disk 12 of the opening and closing part 10 opens the moving hole 4 of the valve body 2 while the stem 14 axially coupled to the insertion hole of the worm wheel 22 rotates.

8, 10 and 12, in order to indicate the opened state of the moving hole 4 of the valve body 2, the first shaft 33a coupled to the upper side of the stem 14 The cam member 32 rotates, and the cam 33 presses the operation lever 42 and presses it.

Then, the operation lever 42 rotates around the hinge and contacts the first contact portion 44, and supplies electricity to the first lamp 52 to display green.

Thus, the operation of the first lamp 52 indicating green informs the surrounding that the opening / closing valve 100 according to the embodiment of the present invention is opened.

At this time, since the first lamp 52 indicates the open (open) state, the first contact part 44 is required to be maintained at a low voltage, so that the first contact part 44 is connected to the first lamp (52) is turned on.

On the other hand, the auxiliary opening / closing display unit 60 is operated together with the opening / closing display unit 30. [

That is, the cap member 32 coupled to the second shaft 33b of the cam member 32 is rotated by the rotation of the stem 14 to rotate the open visitor 65 toward the viewing region 67 of the protecting member 64, To indicate the open state.

Accordingly, since the display period of the dog visitor 65 is made of yellow or green, the opening of the opening / closing valve 100 is informed to the outside through letters and colors. Here, the hiding character 66 and the blocking character 66 of the cap member 62 are not exposed to the outside since the hue of the display region is blocked by the blocking region 68 of the protecting member 64.

On the other hand, a state in which the moving hole 4 of the valve body 2 is shut off will be described. When the user rotates the worm gear member 26 by turning the operation unit 28, the worm wheel gear teeth 24 engaged with the worm gear teeth 27 rotate, and the worm wheel 22 rotates in the gear box 29,

The disk 12 of the opening and closing part 10 blocks the moving hole 4 of the valve body 2 while the stem 14 axially coupled to the insertion hole of the worm wheel 22 rotates.

9, 11 and 12, a first shaft 33a coupled to the upper side of the stem 14 for indicating a blocking state of the moving hole 4 of the valve body 2, The cam member 32 rotates and the cam 33 releases the operation lever 42 from being pressed.

Then, the operation lever 42 returns to the center of the hinge and contacts the second contact portion 46, and supplies electricity to the second lamp 54 to display red.

Thus, the operation of the second ramp 54 indicating red indicates that the opening / closing valve 100 according to the embodiment of the present invention is shut off.

Since the second lamp 54 indicates a closed state and requires a low voltage, the second contact point 46 is connected to the wiring, and the second lamp 54 is connected in a two- Is turned on. In addition, the first and second lamps 52 and 54 may be configured to be turned on by a three-wire method (not shown).

On the other hand, the auxiliary opening / closing display unit 60 is operated together with the opening / closing display unit 30. [

The cap member 32 coupled to the second shaft 33b of the cam member 32 is rotated by the rotation of the stem 14 to rotate the blocking character 66 in the viewing area 67 of the protecting member 64, To indicate the blocking state.

At this time, since the display period of the blocking character 66 is red, it informs the outside of the fact that the opening and closing valve 100 is cut off through letters and colors. Here, the individual visitors 65 of the cap member 62 are not exposed to the outside since they are blocked by the blocking region 68 of the protection member 64. [

Therefore, the opening / closing valve provided with the opening / closing indicator lamp according to the present invention is provided with the opening / closing display portion in the valve body, and the opening state of the opening / closing valve and the closing state of the opening / The opening and closing state of the valve can be easily recognized.

In addition, the present invention provides an auxiliary opening / closing display unit, which allows the user to know whether the opening / closing valve is further opened or closed through letters and colors as the opening / closing valve is opened or closed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill 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 by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the following claims.

2: valve body 14: moving ball
10: opening and closing part 12: disk
14: stem 16: seat
20: power transmission portion 22: worm wheel
24: worm wheel gear portion 26: worm gear member
27: Worm gear tooth 28:
29: gear box 30: opening /
32: cam member 34: switch box
36: lid 40: contact switch part
42: Operation lever 44: First contact part
46: second contact part 50: separation display part
52: first lamp 54: second lamp
60: auxiliary opening / closing display section 62: cap member
64: transparent protective member 64a:
65: Visitors 66: Blocked characters
67: opening portion 68: blocking portion
69: angle display section 100: opening / closing valve

Claims (16)

A valve body in which a moving ball through which water flows is formed;
An opening / closing part provided on the valve body and opening / closing the moving hole;
A power transmission unit for providing power for operating the opening / closing unit; And
A display unit for displaying an open signal and a shutoff signal differently when the opening and closing unit is opened and closed according to an operation of the power transmitting unit;
And an opening / closing valve provided with an opening / closing indicator lamp.
The method according to claim 1,
The opening /
A disk installed on the moving ball and rotating;
A stem inserted into the valve body and axially coupled to the disk; And
A seal provided on an inner peripheral surface of the moving hole for sealing the disc;
And an opening / closing valve provided with an opening / closing indicator lamp.
3. The method of claim 2,
The power transmission unit includes:
A worm wheel to which the stem is coupled and on which a worm wheel gear teeth are formed;
A worm gear member having an outer circumferential surface formed with a worm gear tooth coupled to the worm wheel; And
An operating portion provided at one end of the worm gear member to provide power;
And an opening / closing valve provided with an opening / closing indicator lamp.
The method of claim 3,
The worm wheel and the worm gear member are installed in a gear box,
Wherein the worm wheel is formed in the form of a sector gear,
Wherein the operating portion is one of a handle and a lever.
The method according to claim 1,
The open /
A cam member coupled to one end of the stem provided at the opening and closing portion and rotating the cam in accordance with the operation of the power transmitting portion in the switch box;
A contact switch portion interlocked with the cam to generate a first contact signal in the open / close portion open state and generate a second contact signal in the open / close portion cutoff state; And
And a separation display unit for displaying signals of different states according to the first contact signal and the second contact signal of the contact switch unit
And an opening / closing valve provided with an opening / closing indicator lamp.
6. The method of claim 5,
Wherein the contact switch unit comprises:
An operating lever that moves by contact of the cam;
A first contact portion which is brought into contact by a one-way operation of the operation lever to generate a first contact signal; And
And a second contact portion which is brought into contact with the operation lever by another operation of the operation lever to generate a second contact signal
And an opening / closing valve provided with an opening / closing indicator lamp.
6. The method of claim 5,
The separation display unit displays,
A first lamp for indicating an open state of the opening / closing part according to the first contact signal to inform the surroundings; And
A second lamp formed in a color different from that of the first lamp and indicating the blocking state of the opening and closing part according to the second contact signal to inform the surroundings;
And an opening / closing valve provided with an opening / closing indicator lamp.
8. The method of claim 7,
Wherein the first lamp is a green LED lamp, and the second lamp is a red LED lamp.
9. The method of claim 8,
Wherein the first lamp and the second lamp are formed of a single body, and each of the first and second lamps displays different colors.
10. The method according to any one of claims 1 to 9,
Further comprising an auxiliary opening / closing display unit for displaying an opening state and a blocking state of the opening / closing unit, in addition to the opening / closing display unit.
11. The method of claim 10,
Wherein the auxiliary opening /
A cap member coupled to the cam member of the opening and closing display unit and interlocking with opening and closing of the opening and closing unit and displaying an open visitor and a blocking character per section; And
A protective member formed on and covering the outer circumferential surface of the cap member and selectively exposing the open visitor and the blocking character;
And an opening / closing valve provided with an opening / closing indicator lamp.
12. The method of claim 11,
Wherein the shielding member is configured to shield the blocking character when displaying the open visitor and to alternately display the blocking region and the blocking region to hide the opening character when the blocking character is displayed, Opening and closing valve.
13. The method of claim 12,
Wherein the blocking region is formed by applying a black color to at least one of an inner surface and an outer surface of the protection member,
Wherein the cap member is further provided with an angle display unit for indicating an angle of opening of the opening / closing unit on a scale around the opening character and the visitor.
13. The method of claim 12,
Wherein the viewing region is formed of a transparent material, the blocking region is formed of an opaque material,
Wherein the viewing area and the blocking area are formed twice at intervals of 90 degrees.
10. The method according to any one of claims 7 to 9,
Wherein the first lamp and the second lamp are provided on a printed circuit board.
16. The method of claim 15,
Wherein the printed circuit board comprises a circuit for realizing the first and second lamps for indicating the switch operation by using a falling voltage generated in the circuit,
Wherein the first and second lamps use a low-power consumption LED to embody a status indicator within a range that is not misread by a firefighting fire alarm receiving unit.

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