JPH1194124A - Opening/closing displaying device for valve and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve class opening/closing displaying device which instantly judges opening/closing condition of a valve and the like and prevents any accident due to mis-operation. SOLUTION: This opening/closing displaying device for a valve and the like consists of an opening/closing displaying plate 2 which has a region 22 on which characters or symbols for showing opening condition of valves are described and a region 21 on which characters or symbols for showing its closing condition are described, and is fixed on a plane orthogonal to an opening/closing operation shaft of valves, and a cover plate 3 which is mounted on your side of the opening/closing displaying plate 2 such that it rotates together with an opening/closing operation shaft of the valves, and has a closing condition display region shielding part 32 which covers and hides the region 21 on which characters or symbols for showing an closing condition of the opening/closing displaying plate 2 are described when the opening/closing operation shaft of the valves is rotated to the opening position, and an opening condition display region shielding part 31 which covers and hides the region 22 on which characters or symbols for showing an opening condition of the opening/closing displaying plate 2 are described when the opening/closing operation shaft is rotated to the closing position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve opening / closing display device, and more particularly, to a valve valve and a cock for preventing the erroneous operation of such valves by displaying the opening / closing state so that the valve can be easily identified. The present invention relates to an opening / closing display device for valves.

[0002]

2. Description of the Related Art A ball valve, a cock, and the like (hereinafter, simply referred to as "valves" in this specification) are opened and closed by attaching a handle to an opening / closing operation shaft, but the handle is removed after the operation is completed. Therefore, it was necessary to carefully observe the opening / closing operation axis to determine whether the valves were currently in the “open” state or the “closed” state. Means for coloring the end face of the shaft so that the rotational angle position of the operation shaft can be determined has been used. However, instantaneous determination is difficult, and erroneous operation due to a determination error is not rare.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to make it possible to determine at a glance whether the valves are open or closed even after the handle is removed. Accordingly, it is an object of the present invention to provide a valve opening / closing display device capable of preventing an accident due to an erroneous operation.

[0004]

In order to achieve the above object, an opening / closing display device for valves and the like according to the present invention comprises a region in which a character or a symbol indicating an open state of a valve is described and a character indicating a closed state. Or an opening / closing display plate having an area in which a symbol is described and fixed on a plane perpendicular to the opening / closing operation axis of the valves; and a front and rear side of the opening / closing display plate, which rotates together with the opening / closing operation axis of the valves. A closed state display area shielding portion that is mounted so as to cover a region in which a character or a symbol indicating a closed state of the open / close display plate is described when the open / close operation shaft is rotated to the open position; A cover plate having an open state display area shielding portion for covering an area in which a character or a symbol indicating the open state of the open / close display plate is described when the operation shaft is rotated to the closed position. And wherein the door.

[0005] The area in which characters or symbols indicating the open state of the open / close display plate are described and the closed state display area shielding portion of the cover plate are colored with the same open state display color (for example, red or orange); The area in which characters or symbols indicating the closed state of the display plate are described, and the open state display area shielding portion of the cover plate are colored in a closed state display color (for example, green or black) different from the open state display color. That is recommended.

The opening / closing display plate may be provided with a scale indicating the degree of opening of the valves and the cover plate may be provided with a pointer.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. FIG. 1 is an explanatory view showing each component of an embodiment of an opening / closing display device for valves according to the present invention, together with a ball valve to which it is attached. FIG. 2 shows a state where an opening / closing indicator plate is attached to the valve. FIG. 3 is an explanatory diagram showing a state in which the valve is in a closed state, and FIG. 3 is an explanatory diagram showing a state in which the valve is in an open state, and FIG.
FIG. 5 is an explanatory diagram showing an embodiment in which a scale indicating the opening degree of the valve is provided.

As shown in FIG. 1, the open / close display device according to the present invention basically includes an open / close display plate 2 and a cover plate 3. 1 is a ball valve, 4
Is a spacer ring for adjusting the height of the cover plate 3,
Reference numeral 5 denotes a stop ring for mounting and fixing the cover plate 3 to the opening / closing operation shaft 1 of the valve 1.

The opening / closing display plate 2 is formed on the left side thereof with an area 21 provided with the letters "closed" or an appropriate symbol indicating that the valve is closed, and on the right side thereof,
An area 22 is formed with the word "open" or an appropriate symbol indicating that the valve is in the open state. In the illustrated embodiment, the area 21 indicating the closed state is colored in a closed state display color (for example, green) and the area 22 indicating the open state is displayed in an open state display color (for example, red) so that the open / closed state can be more easily understood. Is colored. 23a and 23b are legs for attaching to the valve 1, and each leg has a valve 1
Notch 23 for passing accessory bolts 12a, 12b
a 'and 23b' are formed. The leg 23a
Indicates the same open state display color (red) as the area 22 indicating the open state.
In addition, the leg 23b is colored in the same closed state display color (green) as the area 21 indicating the closed state.

The left side of the cover plate 3 is configured as an open state display area shielding portion 31 that covers the area 22 indicating the open state of the open / close display plate 2, and the right side shows the closed state of the open / close display plate 2. It is configured as a closed state display area shielding part 32 that covers the area 21. The open state display area shielding part 31 is colored in a closed state display color (green), and the closed state display area shielding part 32 is colored in an open state display color (red). I have. 3
Reference numeral 3 denotes a hole through which the opening / closing operation shaft 11 is inserted when the cover plate is attached to the opening / closing operation shaft 11 of the valve 1.

Next, the above-mentioned opening / closing display device is connected to the ball valve 1.
The procedure for attaching to the device will be described. First, as shown in FIG.
The legs 23a and 23b of the open / close display plate 2 are fixed to the valve by using the attached bolts 12a and 12b of the ball valve 1. At this time, a clearance is generated between the opening / closing display plate 2 and the cover plate 3 corresponding to the height of the excess of the heads of the attached bolts 12a and 12b, so that the spacer ring 4 is attached to the opening / closing operation shaft 11. Therefore, it is preferable to fill this clearance. Next, the cover plate 3 is fitted into the opening / closing operation shaft 11 of the valve 1 by using the hole 33, and the stop ring 5 is attached to the opening / closing operation shaft 11 and fixed. At this time, stop ring 5
It is preferable to cut a groove in the outer periphery of the opening / closing operation shaft 11 so as not to shift. Instead of using the retaining ring 5, a split pin may be inserted into a hole formed at a right angle to the opening / closing operation shaft 11 and fixed. As described above, as shown in FIG. 3, the cover plate 3 is attached to the front side of the opening / closing display plate 2 so as to rotate together with the turning operation of the opening / closing operation shaft 11 in a state close to the plate 2.

When the ball valve 1 is in the "closed" state as shown in FIG. 3, the open state display area shielding portion 31 of the cover plate 3 covers the open state display area 22 of the open / close display plate 2. The hidden, open / closed display plate 2 in the closed state display area 21 is exposed, indicating that the ball valve 1 is in the “closed” state. At this time, the character of "closed" can be easily read, and the closed state display area 21 of the open / close display plate 2 colored green and the open state display area shielding portion 31 of the cover plate 3 also colored green. Are continuously
Since the entire central portion of the open / close display device looks green, it can be instantly determined that the valve 1 is in the "closed" state. Next, the opening / closing operation shaft 1 of the ball valve 1 is moved counterclockwise by 90 degrees.
When the valve is rotated to open the valve, the closed state display area shielding portion 32 of the cover plate 3 is closed by the closed state display area 2 of the open / close display plate 2 as shown in FIG.
1 to cover the open / close display plate 2
2 is exposed, indicating that the ball valve 1 is in the "open" state. At this time, the characters “open” can be easily read, and the open state display area 22 of the open / close display plate 2 colored red and the closed state display area shielding portion 32 of the cover plate 3 also colored red. And the entire central portion of the open / close display device looks red, so it can be instantaneously determined that the valve 1 is in the "open" state.

As in the embodiment shown in FIG. 5, a scale display area 25 indicating the opening degree of the valve is provided on the open / close display plate 2.
Are provided, and graduations 24 and 24 (0 to 10
0%) and the pointer 34 is attached to the cover plate 3.
Can be displayed at the same time.

The materials of the opening / closing display plate 2 and the cover plate 3 include metal plates such as SUS, iron, aluminum, and duralumin, as well as polyolefin, polyester,
A synthetic resin plate such as vinyl chloride can also be used, and the thickness is 0.1 to 5 m.
Those having a size of about m are preferably used. Further, the size of the entire opening / closing display device is usually about 1/4 to the same size of the valve body, and the colors are not only classified into green and red as described above, but also used in appropriate colors such as black and orange. You are free. The shape of the open / close display plate 2 can be suitably changed according to the shape of the valves to be attached and the use conditions, such as a semicircle as shown, a rectangle, a square, or the like. Further, as for the method of attaching the open / close display plate and the cover plate to the valves, it is possible to use means other than the above-described embodiment.

[0015]

The present invention is configured as described above,
According to the present invention, the open / closed state of valves can be determined at a glance with a simple structure, thereby providing a valve open / close display device capable of preventing an accident or the like due to an erroneous operation.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing components of an embodiment of a valve opening / closing display device according to the present invention, together with a ball valve to which the component is attached.

FIG. 2 is an explanatory view showing a state where an open / close display plate is attached to a valve.

FIG. 3 is an explanatory diagram showing a state where a cover plate is further attached and a state where a valve is in a closed state.

FIG. 4 is an explanatory diagram showing a state when a valve is in an open state.

FIG. 5 is an explanatory diagram showing an embodiment in which a scale indicating a valve opening is provided.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ball valve 11 Opening / closing operation shaft 2 Opening / closing display plate 21 Closed state display area 22 Opened state display area 3 Cover plate 31 Opened state display area shielding part 32 Closed state display area shielding part 4 Spacer ring 5 Stop ring

Claims (3)

[Claims] A valve (1) having a region (22) in which a character or a symbol indicating an open state of a valve is described and a region (21) in which a character or a symbol indicating a closed state is described. An opening / closing display plate (2) fixed on a plane perpendicular to the opening / closing operation shaft; and a front side of the opening / closing display plate (2), which is mounted to rotate together with the opening / closing operation shaft of valves,
A closed state display area shielding portion (3) that covers an area (21) on which a character or a symbol indicating the closed state of the open / close display plate is described when the open / close operation shaft is rotated to the open position.
2) and an open state display area shielding portion (31) that covers an area (22) on which a character or a symbol indicating the open state of the open / close display plate is written when the open / close operation shaft is rotated to the closed position. And a cover plate (3) having; and an opening / closing display device for valves and the like. 2. An area (22) on which a character or a symbol indicating the open state of the open / close display plate (2) is described, and a closed state display area shielding portion (32) of the cover plate (3) have the same open state. The area (21) on which the character or symbol indicating the closed state of the open / close display plate (2) is described and the open state display area shielding portion (31) of the cover plate (3) are opened as described above. 2. The open / close display device for valves according to claim 1, wherein the display device is colored in a closed state display color different from the state display color. 3. The open / close display plate (2) is provided with scales (24, 24) indicating the degree of opening of the valves, and the cover plate (3) is provided with a pointer (34). Or an opening / closing display device for valves according to 2.