JPH0343763Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a closing/opening display mechanism for a multi-circuit switch.

(Prior art) Conventionally, in a multi-circuit switch installed on the ground for underground power distribution, a fixed electrode of each circuit is provided protruding above the cable connection chamber provided at the bottom of the switch. On the other hand, each has an opening/closing lid that moves up and down to approach and separate. On the front side of the opening/closing part of each circuit consisting of the fixed electrode and the opening/closing lid,
A front panel is provided to cover the opening/closing part.

A display indicating the loading state of the opening/closing lid is provided in a part of the opening/closing lid, and the display indicating the loading state is visible from the outside when the opening/closing lid is in a lower position on a front panel that covers the front surface of the opening/closing lid. A window is provided corresponding to the position of the display.

(Problems to be Solved by the Invention) However, it has not been possible to know whether or not the opening/closing lid is in the open state only by the display indicating the closed state of the opening/closing lid.

The purpose of this invention is to provide a closing/opening display mechanism for a multi-circuit switch that allows the display indicating the closing and opening states of the opening/closing lid to be viewed from the outside of the front panel, allowing the opening/closing status of each circuit to be easily and reliably known. It's about doing.

Structure of the invention (Means for solving the problem) This invention was made to solve the above-mentioned problems, and this invention consists of an opening/closing lid that can be moved to two positions (up and down) to open and close each circuit. A first display indicating the loading state is provided on the upper part of the
A second display indicating the open state is provided at a lower part shifted in the left-right direction from the display, and a window provided in a shielding plate covering the front surface of the opening/closing lid is provided with a second display indicating the open state when the opening/closing lid is in the lower position. The gist is that the displays correspond and the second display is provided at a corresponding position when the opening/closing lid is in the upper position.

(Function) With the above-described configuration, if a worker etc. looks at the corresponding first or second display in the window of the shielding plate that covers the front surface of the opening/closing lid with the position shifted in the left/right direction, the opening/closing lid will be closed. You can easily know whether it is in the closed state or in the open state.

(Example) Hereinafter, an example in which this invention is embodied in a multi-circuit switch will be described with reference to FIGS. 1 to 8.

FIG. 2 shows a main body case 1 of a multi-circuit switch installed on the ground such as a sidewalk, and a pair of left and right opening/closing doors 2a, 2b are pivotally supported on the front surface thereof so as to be able to open double doors. As shown in FIG. 3, a front panel P is provided in the upper part of the main body case 1, and a cable connection chamber 3 in which a cable terminal L is housed is provided in the lower part of the main body case 1. The front panel P
Inside, as shown in FIG. 1, there is a closing/opening mechanism section (which consists of an electrode support member 4 containing fixed electrodes (not shown) for each circuit, a link mechanism 6 that drives the opening/closing lid 5 to two positions (up and down), etc. An opening/closing section A consisting of a device (not shown), etc. is housed therein. The opening/closing lid 5 is in a closed state in which it is fitted into the electrode support member 4 at a lower position driven downward, as shown in the central opening/closing part A shown in FIG.

The front part of the loading/unloading mechanism section is shown in FIGS. 1 and 5.
As shown in the figure, an operating shaft 9 corresponding to an operating hole 8 provided through the front panel P is provided. A shielding member 10 having a rubber bellows is attached to the back surface of the operating hole 8, and the operating shaft 9 is inserted through the inner bottom of the shielding member 10. The operator operates the operating shaft 9 through the tip of the operating shaft 9 disposed within the shielding member 10, and prevents dust from entering the loading/opening mechanism through the operating hole 8. It's getting old.

A plurality of substantially rectangular insertion windows 11 are transparently provided on the central front surface of the front panel P, corresponding to the opening/closing lids 5 of the respective circuits provided in the front panel P. Each of the insertion windows 11 is of a size that allows the opening/closing lid 5 to be inserted therethrough, and the opening/closing lid 5 is pulled forward from a support member 12 provided at the lower part of the link mechanism 6 and attached through the insertion window 11. and is removable. The attachment and detachment of the opening/closing lid 5 is performed when the opening/closing lid 5 is in an upper position driven upwards (the opening/closing lid 5 is in the open state) like the right opening/closing lid 5 shown in FIG. .

Further, at the center position of the upper part of the opening/closing lid 5, there is a first display indicating the closing state of the opening/closing part A.
An "off" display 14 as a second display indicating the open state of the opening/closing section A is provided at a position slightly to the right of the center of the lower part of the display 13.

A pair of screws 15 are provided on the front panel P above both sides of each insertion window 11 as shown in FIG.
is fixed. As shown in FIG. 6, each screw 15 is provided with a cylindrical spacer 16, a flat washer 17, and a spring washer 18 on the front side of the front panel P, and a nut 19 is inserted from the back side of the front panel P. are combined. And the flat washer 1
7 is spaced apart from the front surface of the front panel P by the spacer 16.

A screw 20 is fixed to the front panel P at the lower center position of each of the insertion windows 11, and as shown in FIG. A cylindrical spacer 16 and a flat washer 17 are interposed. Also, unlike the screw 15, the screw 20 has a spring washer 18.
Instead, a hanging plate 23 made of a plate material having a substantially L-shaped cross section is used.
is interposed. A nut 19 is screwed into each screw 20 from the back side of the front panel P.
The latching plate 23 extends in the left-right direction in correspondence with the lower edge of the insertion window 11, and is separated from the front surface of the front panel P by a predetermined distance by the spacer 16 and flat washer 17. An opening/closing part cover 30, which will be described later, is disposed within the interval, and on the upper surface of the lower part of the hanging plate 23, as shown in FIG.
As shown in FIG. 5, the lower edge of the opening/closing part cover 30 is brought into contact with the opening/closing part cover 30. In this embodiment, as shown in FIG. 3, the retaining plate 23 has five circuits integrally formed and is fixed to the front panel P with five screws 20. Further, the distal end side of the retaining plate 23 is bent so as to face diagonally forward.

As shown in FIG. 8, a rectangular opening/closing part cover 30 as a shielding plate made of transparent synthetic resin that closes the insertion window 11 has an elastic rubber magnet 31 attached to the periphery of its back surface. It is worn. As shown in FIG.
It has become adsorbed. In addition, the back surface of the opening/closing section cover 30 is coated with an opaque coating, except for the transparent window section 32 which is a horizontally elongated approximately oval window provided at a position slightly to the right of the lower center of the opening/closing section cover 30. . Note that the transparent window portion 32 is shown in FIG.
As shown in FIG. 3, as the opening/closing lid 5 moves up and down, the "ON" and "OFF" indicators 13 and 14 are provided at positions corresponding to the left and right sides of the transparent window section 32, respectively. The "on" and "off" indicators 13 and 14 are visible from the outside as the opening/closing lid 5 moves up and down.

A handle 33 is attached to the upper center of the opening/closing part cover 30 with a pair of screws 34.
Further, locking holes 35 corresponding to the spacers 16 of the screws 15 are transparently provided at both upper ends of the opening/closing part cover 30. An insertion hole 36 that is continuous with the locking hole 35 is provided below the locking hole 35 . The outer diameter of the locking hole 35 is smaller than the outer diameter of the head of the screw 15 and the outer diameter of the flat washer 17,
Further, the outer diameter of the insertion hole 36 is set larger than the outer diameter of the head of the screw 15 and the outer diameter of the plain washer 17.

On the other hand, a notch 37 for retracting the spacer 16 of the screw 20 is provided at the center of the lower end of the opening/closing part cover 30.

Now, the operation of the multi-circuit switch configured as described above will be explained.

“On” display 13 on the opening/closing lid 5 of this multi-circuit switch
is provided at the center of the upper part of the opening/closing cover 5, the "OFF" indicator 14 is provided at the center of the lower part of the opening/closing cover 30 at a position slightly to the right, and the transparent window 32 is provided in the shape of an oblong oval at the center of the lower part of the opening/closing part cover 30 at a position slightly to the right. ing. Therefore,
In the closing state in which the opening/closing lid 5 is driven downward, as in the center opening/closing section A shown in FIG. Further, when the opening/closing lid 5 is in an open state in which it is driven upward, as in the opening/closing section A on the right side shown in FIG.

Therefore, the operator "enters" the left and right sides of the see-through window section 32,
Since the "off" indications 13 and 14 correspond, it is not only possible to read the characters, but also to display the different "on" and "off" indications 13 and 14 on either the left or right side of the transparent window section 32.
Because of the position of the character, the status cannot be determined based only on the reading of the characters, such as the difference from other display character positions or the blank area of the see-through window 32. It is possible to easily and reliably judge the closing/opening state of No. 5.

In this embodiment, the insertion window 11 is provided on the front panel P, the opening/closing part cover 30 covering the insertion window 11 is used as a shielding plate, and the see-through window 32 is provided on the shielding plate. Instead of providing the insertion window 11, the front panel P may be used as a shielding plate, and the front panel P may be provided with a window portion through which the "ON" and "OFF" indications 13 and 14 can be directly viewed.

Furthermore, this invention can be modified as desired without departing from the spirit of the invention, such as by appropriately changing the mounting positions of the "ON" and "OFF" indicators 13 and 14.

Effects of the invention As detailed above, this invention has a display that indicates the closed and open states of the opening/closing lid, which can be seen from the outside of the shield plate such as the front panel that covers the front of the opening/closing lid, and the opening/closing status of each circuit. This is an excellent invention for industrial use, as it has the effect of ensuring safe maintenance and inspection work by being easily and reliably informed.

[Brief explanation of the drawing]

Fig. 1 is a front view of the opening/closing part of an embodiment embodying this invention, Fig. 2 is an overall perspective view of the multi-circuit switch, and Fig. 3 shows the multi-circuit switch with the opening/closing door removed. Front view, Figure 4 is a front view of the opening/closing part cover, Figure 5 is a side view of the opening/closing part cover, Figure 6 is a side view of the screw, Figure 7 is a side view of the hanging plate, and Figure 8 is opening/closing. FIG. 3 is a back view of the section cover. 1... Body case, 5... Opening/closing lid, 11... Insertion window, 13... "In" display as the first display,
14... "Off" display as second display, 30...
...opening/closing part cover as a shielding plate, 32... see-through window part as a window part, A... opening/closing part, P... front panel.

Claims (1)

[Claims for Utility Model Registration] A first display indicating the closing state is provided at the top of the opening/closing lid that is driven to two positions (up and down) to open and close each circuit, and furthermore, a first display indicating the closing state is provided at a position to the left and right from this first display. A second display indicating an open state is provided at the lower part of the opening/closing lid, and the first display corresponds to a window provided in a shielding plate that covers the front surface of the opening/closing lid when the opening/closing lid is in the lower position, and A closing/opening display mechanism for a multi-circuit switch, characterized in that the second display is provided at a corresponding position when the opening/closing lid is in an upper position.