JP3028436U - Valve opening indicator - Google Patents

Abstract

(57) [Summary] [Problem] A valve opening degree display device, which is opened and closed by rotating a handle and has a handle shaft horizontally or inclined, and which is a flat plate fixed to the handle or the handle shaft. A support member, a transparent tube spirally fixed on the support member, and a display member movable inside the transparent tube are provided. A valve opening degree display device, which displays the opening degree of a valve by maintaining the position and changing the relative positions of a supporting member and a transparent tube. [Effects] The present invention has solved the problem that "the valve opening state can be accurately confirmed with a simple structure" by attaching the valve opening display device to the handle portion of the conventional valve. Any valve with a handle can be used, and of course, it has a great utility value in terms of time for confirming an accurate opening state and safety.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a valve opening degree display device which is opened and closed by rotating a handle and whose handle shaft is installed horizontally or inclined. More specifically, the present invention relates to a valve opening degree display device capable of accurately confirming the valve opening state at a glance by simply attaching an inexpensive and simple structure device to a handle.

[0002]

[Prior art]

 In the past, when checking the opening degree of a valve with a handle, it was not possible to make a judgment visually, but it was necessary to check the opening degree by directly touching the valve. There is also a valve that has been modified so that the opening degree of the valve can be understood, but in that case, it is more expensive than a normal valve.

As another method, there is a method of marking an existing valve so that the opening degree can be recognized, or a method of attaching a valve opening degree indicating device to the valve itself.

For example, Japanese Utility Model Laid-Open No. 59-68884 and Japanese Utility Model Laid-Open No. 61-154380 use the vertical movement of the handle shaft in accordance with the rotation of the handle to determine the positional relationship between the valve body and the handle shaft. Correspondingly, the opening degree display device that displays the open / closed state of the valve is opened. However, with these methods, the vertical movement of the handle shaft is very small, which makes it difficult to check from a distance, and it is difficult to read the handle rotation angle (rotational fraction). In other words, currently valves that open and close at about 4 rotations are the mainstream, but the rotation angle at the first rotation when opening the valve from the fully closed state is very important for actual operation. However, there is a fact that it is difficult to confirm and the significance of the display is small.

In order to improve such a drawback, Japanese Utility Model Laid-Open No. 61-117975 discloses that the open / closed state of a valve is displayed in accordance with the positional relationship between the valve body and the handle, and a fraction rotation display plate is attached to the handle. An opening display device is disclosed. This device certainly displays fractional rotation, but there is a separate display of vertical movement of the handle and display of fractional rotation, and the reading direction is different, so there was a practical inconvenience. Further, the fraction rotation display plate is simply a representation of the fraction of rotation, and it was difficult to confirm it from a distance.

As described above, in the conventional device, since the device is large-scale and it is difficult to confirm from a distance, the proposition that "the valve opening state can be accurately confirmed with a simple structure". Was not satisfied.

[0007]

[Problems to be solved by the device]

 The present invention solves the problems of the conventional valve opening degree display device when checking the valve opening degree state from a distance described above, and can be easily manufactured with inexpensive materials. , It is possible to check the valve opening state from a distance. ”The object is to provide a new valve opening display device that solves the problem.

[0008]

[Means for Solving the Problems]

 As a result of diligent studies to solve the above problems, the present inventors fixed a transparent tube in a spiral shape on a support member fixed to a handle or a handle shaft, and put a sphere or the like inside the transparent tube. The inventors have found that the above object can be achieved by a valve opening display device, and have completed the present invention.

That is, the gist of the present invention is: (1) A valve opening degree display device that is opened and closed by rotating a handle, and the handle shaft is installed horizontally or inclined, and is fixed to the handle or the handle shaft. A support member in the form of a flat plate, a transparent tube spirally fixed on the support member, and a display member movable inside the transparent tube. The display member has a rotatable handle. Even though the position is maintained by gravity, the valve opening display device is characterized by displaying the valve opening by the relative position change between the support member and the transparent tube. (2) The display member The valve opening degree display device according to (1) above, which is a sphere smaller than the inner diameter of the transparent tube, (3) the above (1) or the support member or the transparent tube having a scale for displaying the opening degree state of the valve. Valve described in (2) Degree display device, (4) The valve opening display device according to any one of (1) to (3) above, wherein the transparent tube is color-coded for each turn, and the number of turns of the transparent tube is displayed. (5) The valve opening degree display device according to any one of (1) to (4) above, wherein the display member has a color different from the color of the transparent tube and / or the support member.

[0010]

[Embodiment of device]

 The valve opening degree display device of the present invention is used by being attached to a valve which is opened and closed by rotating a handle and whose handle shaft is horizontally or inclined. The type of valve is not particularly limited, and a gate valve, a stop valve, etc. that can be opened and closed by one rotation or multiple rotations can be used.

The valve opening degree display device of the present invention includes a flat plate-shaped support member fixed to a handle or a handle shaft, a transparent tube spirally fixed on the support member, and a movable member inside the transparent tube. The display member includes a flexible display member, which maintains its position due to gravity even when the handle rotates, and changes the valve opening degree by the relative position change between the support member and the transparent tube. It is characterized by displaying.

That is, when the opening degree display device is attached to the valve and the handle is moved, the support member and the transparent tube move according to the movement of the handle, but the display member moves in the transparent tube due to gravity and Try to stay in position. At that time, a relative position change occurs between the support member and the transparent tube, and the opening degree of the valve can be known from the color, number, scale, etc. displayed on the transparent tube and / or the support member.

The shape and material of the display member are not limited as long as the display member can be moved inside the transparent tube, but a sphere smaller than the inner diameter of the transparent tube is preferable in terms of ease of movement.

In order to make the display clear, the support member or the transparent tube has a scale for indicating the opening state of the valve, the transparent tube is color-coded for each revolution, and Those that indicate whether they are present in the eyes and those that the display member has a color different from the color of the transparent tube and / or the support member are preferable.

In the present invention, with the above configuration, the number of rotations and the rotation angle of the valve can be clearly known.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a valve according to an embodiment of the present invention when the valve is fully closed, and a front view of a valve according to the embodiment of the present invention when used (one rotation 3/4 open). FIG. 2 is a side view in which a part of the valve of the embodiment of the present invention is shown in section. In the drawings, the tubular fixing member 2 is an optional member for fixing the supporting member to the handle, and the supporting member may be directly fixed to the handle. The fixing member 2 is made of acrylic resin, vinyl chloride, polyethylene, polypropylene, plastic, metal, or the like, and can be fixed to the handle 1 by fitting, adhesion, fusion bonding, or wire or string.

The support member 3 may have a flat plate shape other than a circular shape, and may have a square shape as shown in FIG. 3 or a regular polygonal shape. The supporting member 3 is made of acrylic resin, vinyl chloride, polyethylene, polypropylene, plastic, wood board, metal or the like, and can be fixed to the fixing member 2 by a similar method.

Next, the transparent tube 4 is attached in a spiral shape around the fixing member 2, and is fixed to the fixing member 2 and / or the supporting member 3 by adhesion, fusion bonding, cord or cord so as not to lose its shape. To be done. At this time, the winding direction may be right-handed or left-handed. The transparent tube 4 is made of vinyl chloride, silicone, Tygon, glass, etc., and both ends are covered with stoppers 8 or both ends of the transparent tube itself are sealed so that the inner display member (sphere) 5 does not exist. You may pipe.

Further, the transparent tube 4 is made of a transparent material so that the display member 5 can be seen, but the transparent here is not limited to colorless and transparent, and may be colored and transparent. As the display member 5, a member having a diameter smaller than the inner diameter of the transparent tube 4 is used, and a material thereof is preferably a spherical body made of metal such as glass, glass or stainless steel. As a method for indicating the opening degree, a colored liquid may be used instead of using the display member, but the operating environment of the valve opening degree display device is high, or the liquid is attached to the transparent tube 4. Considering these points, it is better to use a sphere.

The marking of the scale on the supporting member and the transparent tube may be carried out by a method such as engraving on itself, sticking a seal or a color tape, and displaying with a magic ink. An example in which the scale is displayed on a transparent tube is shown in FIG. The transparent tube and the supporting member are colored in the same manner, but in any case, it is necessary to prevent the display and the color from being erased by the use.

[0021]

[Effect of device]

 As described above, the present invention solves the problem that "the valve opening state can be accurately confirmed with a simple structure" by mounting the valve opening display device on the handle portion of the conventional valve. Of course, any valve with a handle can be used, and it has a great utility value in terms of time for confirming an accurate opening state and safety.

[Brief description of drawings]

FIG. 1 is a front view of a valve according to an embodiment of the present invention when the valve is fully closed, and FIG.
FIG.

FIG. 2 is a side view in which a part of the valve of the embodiment of the present invention is shown in section.

FIG. 3 is a front view of the valve of the present invention when it is fully closed.

FIG. 4 is a front view of the valve of the present invention when it is fully closed.

[Explanation of symbols]

 1 Handle 2 Fixing Member 3 Supporting Member 4 Transparent Tube 5 Display Member (Sphere) 6 Handle Shaft 7 Valve Body 8 Plug

Claims (5)

[Scope of utility model registration request] 1. A valve opening display device which is opened and closed by rotating a handle, and has a handle shaft horizontally or inclined, and a flat plate-like support member fixed to the handle or the handle shaft. A transparent tube spirally fixed on a support member, and a display member movable inside the transparent tube, the display member maintaining its position by gravity even if the handle rotates, A valve opening degree display device, which displays the opening degree of a valve by a relative positional change between a support member and a transparent tube. 2. The valve opening degree display device according to claim 1, wherein the display member is a sphere smaller than the inner diameter of the transparent tube. 3. The valve opening degree display device according to claim 1, wherein the support member or the transparent tube has a scale for displaying a valve opening degree state. 4. The transparent tube is color-coded for each turn, and the display member indicates the number of turns of the transparent tube.
The valve opening degree display device according to any one of the above. 5. The valve opening degree display device according to claim 1, wherein the display member has a color different from the color of the transparent tube and / or the support member.