JPH0424727Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a storage box for monitoring equipment for switchgear, which is constructed by storing monitoring equipment such as meters in a box body, and is suitable for use in gas-insulated switchgear, etc. It is used in switchgear.

[Conventional technology] Switchgears installed in electrical stations such as substations include
Many monitoring devices (devices that require status monitoring) such as analog or digital instruments such as voltmeters, ammeters, and coulometers, various indicator lamps, and switches are installed, but as shown in Figure 5, these are usually The monitoring device 1 is housed in a box 2 attached to a part of or near the switchgear. The box body is provided with a viewing window 3 through which a supervisor 4 can visually observe the monitored surface 1a of the monitoring device 1 inside the box body.

Depending on the configuration of the opening/closing device, the box 2 may be installed at such a high location that the monitored surface 1a of the monitoring device cannot be viewed from the front through the viewing window 3. In this case, conventionally, as shown in FIG. 5, an observer stands on a step stool 5 and observes the monitored surface 1a of the monitoring device from the front through the viewing window 3, or
Or, as shown in FIG. 6, the monitor looks up through the viewing window 3 and looks at the monitored surface 1a of the monitoring device from diagonally below.
was observing.

[Problems to be solved by the invention] However, when using a step stool as shown in Figure 5, it is necessary to install a step stool near the opening/closing device that matches the height of the box. The equipment for the switchgear facility increases, leading to an increase in equipment costs, and managing the facility is troublesome, and it is also dangerous to step on the step stool.

In the case of FIG. 6, there is no such inconvenience, but in this case, the monitored surface of the monitoring device is viewed obliquely, so there is a problem that the display is difficult to see. Particularly when the monitoring device is an analog meter, the display on the pointer cannot be read accurately, making it impossible to perform accurate monitoring.

An object of the present invention is to provide a monitoring equipment storage box for a switchgear that solves the above-mentioned problems.

[Means for Solving the Problems] As shown in FIG. 1 showing an embodiment of the present invention, a monitoring device 1 such as a meter that requires inspection and monitoring is housed in a box 2, and the monitoring device is A viewing window 3 for visually observing the monitored surface 1a of the device 1 from the outside is provided in the box body 2.
This storage box for monitoring equipment for a switchgear is characterized in that a tilt angle adjustment mechanism 7 for adjusting the tilt angle θ of the monitoring equipment 1 is provided in the box body 2.

[Operation of the invention] As described above, the monitoring device 1 is adjusted to the tilt angle adjusting mechanism 7.
If the angle of inclination is adjustable through the window, even if the box is installed in such a way that the observer is forced to view the viewing window diagonally, the observer will still be able to view the monitored surface of the monitoring equipment from the front. You can adjust the orientation of the monitoring equipment to get the best results. Therefore, there is no need for the supervisor to misread the display, and the switchgear can be monitored accurately at all times.

[Embodiments] Examples of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention. In the figure, 2 is a box body, and this box body has a door 201 that can be opened and closed on the front surface thereof. door 201
A rectangular hole 301 is provided in the hole 30.
A transparent glass plate 302 is arranged to close the door 201, and this glass plate is fixed to the door 201 by a window frame 303 attached to the front surface of the door 201.

In this example, the viewing window 3 is configured by the hole 301, the glass plate 302, and the window frame 303.

The monitoring device 1 is supported so that its tilt angle θ can be adjusted via a tilt angle adjustment mechanism 7 attached to a fixed frame 8 provided within the box body 2.

The inclination angle adjustment mechanism 7 includes a rotating plate 70 having a plurality of inclination angle setting small holes 701 provided along an arc.
2 and a monitoring device support member 703 fixed to this rotating plate 702.
04, and the rotary plate 702 is rotatably supported by a shaft 705 at the center of an arc along which the small hole 701 extends relative to a fixed frame (not shown). The monitoring device 1 is, for example, an analog meter, and this monitoring device is fixed to the monitoring device support member 703, and when the inclination angle θ of the monitoring device 1 is set to zero, the monitored surface 1a of the monitoring device 1 is at the center of the viewing window 3. The position of the axis 705 is set so that it is located at . Then, with the box body 2 installed in a predetermined position, the monitored surface 1a of the monitoring device 1 is oriented in a direction substantially perpendicular to the observer's line of sight (so that the observer can visually see the monitored surface from the front). ) The inclination angle θ of the monitored surface 1a of the monitoring device 1 is adjusted by rotating the rotating plate 702, and the rotating plate holding means is passed through any of the small holes 701 for setting the inclination angle of the rotating plate 702. A bolt 706 is screwed into a screw hole (not shown) provided in the fixed frame 8 and tightened, and the rotating plate 702 is held at a predetermined rotating position by the bolt 706.

In this embodiment, a light shielding plate 9 is attached to the lower part of the front side of the rotating plate, and an illumination lamp 10 is attached to the inside of this light shielding plate to illuminate the monitored surface of the monitoring equipment. If the illumination light is fixed to the monitoring equipment mounting frame 704 side in this way, the distance between the illumination light and the monitored surface of the monitoring equipment can be maintained regardless of the rotational position of the rotating plate 702 (the angle of inclination of the monitoring equipment). Since the positional relationship can be kept constant, the surface to be monitored can be well illuminated regardless of the inclination angle of the monitoring equipment.

With the above configuration, when the box body is installed so that the viewing window 3 is located above the line of sight of the observer, the rotation angle of the rotation plate 702 can be adjusted appropriately, and the monitoring equipment can be The direction of the monitored surface can be adjusted to be perpendicular to the line of sight. In this case, the higher the installation position of the box, the greater the inclination angle θ of the monitoring device 1.

In the above embodiment, the position of the shaft 705 is preferably set above the upper edge of the viewing window 3. By setting the position of the shaft 705 in this manner, when the rotating plate 702 is rotated counterclockwise in FIG. Since the line connecting the center of the monitored surface 1a and the center of the viewing window 3 can be tilted to match the line of sight, the monitored surface 1a can be easily viewed from diagonally below through the viewing window 3.

In the above embodiment, a bolt may be used as the shaft 705, and the bolt may be tightened after determining the inclination angle of the rotating plate 702.

In the above embodiment, a plurality of small holes 701 for setting the inclination angle were provided in the rotating plate 702, but instead of the small holes 701, as shown in FIG. A hole 710 is provided, and this elongated hole 71
The rotary plate 702 can also be fixed by a holding means such as a bolt 706 passed through the rotary plate 702. In this case, the inclination angle of the monitoring device 1 can be adjusted continuously.

In the above embodiment, as shown in FIGS. 3A and 3B, a center position setting elongated hole 711 is provided at the rotation center position of the rotating plate 702, and the screw is inserted into the fixed frame through the elongated hole 711. Alternatively, the rotating plate 702 may be rotated around the bolt 712 that has been rotated. In this case, the bolt 712 is the monitoring device 1
After adjusting the inclination angle appropriately, the bolt 706 constituting the rotating plate holding means is tightened. Note that instead of the center position setting long hole 711, a plurality of center position setting small holes arranged at intervals may be provided.

When configured as shown in Figure 3 A and B, the viewing window 3
It becomes easier to align the line connecting the center of the monitor and the center of the monitored surface of the monitoring device with the line of sight.

In the above explanation, the rotating plate 702 is provided with a long hole for setting an inclination angle or a plurality of small holes for setting an inclination angle, but as shown in FIG. The fixed frame 8 is provided with a plurality of small holes 801, 801, . By engaging the rotating plate holding means (not shown) such as a bolt inserted into the hole 801 with the notch 713,
The rotating plate 702 may be fixed to the frame 8. In this case, a pin fitted into the small hole 801 is used as a holding means for holding the rotating plate 702 at a predetermined rotating position, and this pin is inserted into the notch 713.
The rotary plate 702 may be held at a predetermined rotational position by fitting the rotary plate 702 into a predetermined rotational position. In addition, in this case, the pin fitted in the small hole 801 is inserted into the rotating plate 702.
The rotary plate can also be held at a predetermined rotational position by abutting against the front side surface 702a of the lower end of the rotary plate.

In the example shown in FIG. 4, a long hole along the arc C is provided instead of the small hole 801, and a bolt that is fitted into the long hole and fixed in a predetermined position with a nut is inserted into the notch 713 of the rotating plate 702, etc. The rotating plate 702 can also be held in a predetermined position by engaging with the rotating plate 702 .

In the above example, the case where the box is installed in a high position and the monitoring equipment is monitored through the viewing window is taken as an example, but conversely, the case where the box is installed in a low position and the monitoring equipment is looked down on is taken as an example. The present invention can also be applied when it is necessary to observe obliquely from above. In that case, it goes without saying that the rotation range of the rotation plate 702 needs to be appropriately different from the above-mentioned embodiments in accordance with the direction of the observer's line of sight.

In the above embodiment, only one monitoring device is housed in the box, but it is of course possible to house multiple monitoring devices in the box.
Of course, if a plurality of monitoring devices are housed, a plurality of viewing windows can be provided as necessary.

In this type of box, if the viewing window 3 is formed to be larger, the monitoring equipment can be observed even if the viewing window is at a height that is somewhat different from the observer's eye level. However, in this case, the monitored surface of the monitoring equipment cannot be viewed from the front, so if the monitoring equipment is an analog instrument, accurate monitoring cannot be performed. , there is a problem that the box becomes larger. Furthermore, if the viewing window is enlarged, the viewing window imposes restrictions on the arrangement of other equipment within the box, making it difficult to layout the equipment within the box.

On the other hand, as seen in the above embodiment, when the monitoring equipment is installed via the tilt angle adjustment mechanism, the viewing window does not have to be particularly large and can be monitored regardless of the installation position of the box. The equipment can be viewed from the front. Therefore, various problems caused by enlarging the viewing window can be solved.

[Effects of the invention] As described above, according to the invention, even when the box is installed with the viewing window of the box obliquely viewed, the monitored surface of the monitoring equipment can be directed in the line of sight of the observer. Since it can be adjusted, there is no need to prepare a step stool or the like whose height matches the installation position of the box. Therefore, there are advantages in that not only the facilities for the switchgear can be simplified, but also the safety of the monitoring work can be ensured. Furthermore, it becomes possible to use boxes of the same structure for monitoring equipment, and it also becomes possible to standardize the boxes. Furthermore, since the surface to be monitored of the monitoring equipment can always be monitored from substantially the front, monitoring can always be performed accurately, and the possibility of making mistakes such as misjudging the status of the monitoring equipment can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a configuration diagram of the main parts showing a modified example of the tilt angle adjustment mechanism used in the present invention, and FIGS. 3A and 3B are main parts showing different states of the tilt angle adjustment mechanism used in still other embodiments of the present invention. Fig. 4 is a block diagram of main parts of still another embodiment of the present invention, Figs.
The figure is an explanatory diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1...Monitoring equipment, 1a...Monitored surface, 2...Box body, 3...Peep window, 7...Inclination angle adjustment mechanism, 70
1... Rotating plate, 701... Small hole for angle setting, 70
5... Axis (rotation center of rotating plate), 710... Elongated hole for setting the inclination angle, 711... Elongated hole for setting the center position,
712...Bolt (rotation center of rotating plate).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Monitoring equipment such as meters that require inspection and monitoring is housed in a box, and a viewing window is provided in the box for visually observing the monitored surface of the monitoring equipment from the outside. A monitoring equipment storage box for a switchgear, comprising: an inclination angle adjustment mechanism for adjusting an inclination angle of the monitoring equipment within the box body. (2) The inclination angle adjustment mechanism has a long hole for setting an inclination angle extending along an arc or a plurality of small holes for setting an inclination angle provided along the arc, and rotates around the center of the arc. a monitoring equipment mounting frame equipped with a rotating plate that is provided to be able to rotate as the rotating plate; A monitoring equipment storage box for a switchgear according to claim 1, which comprises a rotating plate holding means for holding the moving plate at a predetermined rotating position. (3) The rotating plate has a plurality of center position setting small holes or center position setting elongated holes in the part that is the center of rotation, and a shaft fitted into the center position setting small holes or elongated holes. The monitoring device storage box for a switchgear according to claim 2, wherein the rotating plate is rotatably supported by a utility model. (4) The angle adjustment range of the tilt angle adjustment mechanism is set so that the monitored surface of the monitoring device can be directed in a direction substantially perpendicular to the line of sight of the person monitoring the monitoring device. A monitoring device storage box for a switchgear according to any one of items 1 to 3. (5) The monitoring equipment storage box for an opening/closing device according to any one of claims 1 to 4, wherein the viewing window of the box body is located at a position where a supervisor cannot normally see it from the front.