JPS645924Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a closed switchboard device, and in particular, a plug connected to a drawer type or disconnector housed in the closed switchboard, and a plug connected to the plug installed inside the closed switchboard. This invention relates to a closed switchboard device with improved connection to a jack.

FIG. 1 is a partial side sectional view showing a conventional closed switchboard device. In FIG. 1, a closed switchboard 1 houses drawers and disconnectors 2 so as to be horizontally movable. The slide plate 3 is held slidably in the left-right direction in the drawing by a guide roller 4 attached to the side surface of the drawer-shaped cutter 2, and is provided with a through hole 3a in the right side protrusion. The plug 5 is attached to the left end (inner end) of the slide plate 3, and includes a contact 5a and a guide pin 5b. A wire bundle 6 for controlling the wire breaker is connected between the drawer type wire breaker 2 and the contact 5a of the plug 5. The jack 7 is installed in the closed switchboard 1 and is connected to the contact 5a of the plug 5.
A guide hole 7a into which a guide pin 5b is inserted is provided. A wire bundle 8 on the panel side is connected between the jack 7 and a control room (not shown) of the closed switchboard 1. One end of the rod pin 9 is attached to the right end (external end) of the slide plate 3 by, for example, welding, and the other end is installed so as to protrude horizontally outward. The operating handle 10 is rotatably attached at one end to the other end of the rod pin 9 by a first pin 11, and is rotatably attached from the position shown by the solid line to the position shown by the chain double-dashed line. . The second pin 12 is attached to the other end of the operating handle 10, and its length is longer than the diameter of the operating handle 10. The bracket 13 is attached to the drawer type or the disconnector 2 by welding or the like so as to protrude from the surface side. Lever 14 is attached to bracket 13 in a third position.
As will be described later, when the slide plate 3 is pushed to the left as shown by the dashed line, the second pin 1
2, a notch 14a and a handshake 14b are provided. The torsion spring 16 is attached to the third pin 15, and its one end is engaged with the bracket 13 and the other end is engaged with the lever 14, so that the lever 14 is always moved counterclockwise around the third pin 15. It is biased to rotate. The fixing fitting 17 is attached to the drawer type or disconnector 2 by welding or the like so as to protrude from the surface thereof, and has a through hole (not shown) bored therein corresponding to the through hole 3a of the slide plate 3. The lock pin 18 is inserted into the through hole 3a of the slide plate 3 and the through hole (not shown) of the fixing member 17 to fix the slide plate 3.

Next, the operation will be explained. The drawer type disconnector 2 moves the plug 5 from the disconnection position shown by the solid line to the plug 5 as shown by the dashed line by a drawer mechanism (not shown) provided in the drawer type or disconnector 2 inside the closed switchboard 1. The structure is such that it can be moved to an operating position where it is fully connected to the jack 7. Normally, the drawer type and disconnector 2 are used in the operating position, but even when the drawer type and disconnector 2 are in the disconnected position, only the control circuit is connected to test the operation of the drawer type and disconnector 2. is often done.

Hereinafter, the function and operation at the disconnection position will be explained. After pulling out the lock pin 18 from the through hole 3a of the slide plate 3 and the through hole (not shown) of the fixing metal fitting 17 and putting the operating handle 10 in the state shown by the two-dot chain line, pushing it in the left horizontal direction causes the slide plate to The plug 5 is also pushed horizontally to the left together with the slide plate 3, and accordingly, the wire bundle 6 for controlling the cutter and disconnector is also stretched leftward from the solid line to the dashed-dotted line. When the second pin 12 attached to the operating handle 10 moves below the lever 14, it engages with the notch 14a and twists the lever 14 about the third pin 15, accumulating the spring 16. while rotating it clockwise. After the second pin 12 is completely engaged with the notch 14a of the lever 14 by this rotation, the operating handle 10 is further pushed in the left horizontal direction, and the lever 14 is moved clockwise around the third pin 15. Shake the lever 14 with your handshake 1.
Push 4b until it reaches the position indicated by the dashed line.
Plug 5 is fully electrically connected to jack 7. Therefore, even if the drawer type or disconnector 2 is in the disconnected position, only the control circuit can be connected and the operation test of the drawer type or disconnector 2 can be performed.

When the drawer or disconnector 2 is moved to the operating position from this state, the slide plate 3, plug 5, rod pin 9 and operating handle 10 remain pushed in the left horizontal direction at the disconnection position, Only the drawer shape and disconnector 2 move in the left horizontal direction. In this case, since the second pin 12 is engaged with the notch 14a of the lever 14, the second pin 12 is engaged with the notch 14a.
The lever 14 is rotated clockwise around the third pin 15 until it is removed from the notch 14a, and when the second pin 12 is removed from the notch 14a, the spring force of the torsion spring 16 returns it to the original state shown by the solid line. to return to.

Next, the drawer shape and disconnector 2 are in the disconnection position,
To disconnect the plug 5 and the jack 7 from the state where the plug 5 is connected to the jack 7, hold the handshake 14b of the lever 14 and rotate the handshake 14b from the position shown by the dashed line to the position shown by the solid line. By pushing up in the clockwise direction, the plug 5 and jack 7 are separated. After that, pull out the operating handle 10 horizontally to the right, pull out the slide plate 3 to the position shown by the solid line, and then insert the lock pin 18 into the through hole 3a of the slide plate 3 and the through hole (not shown) of the fixing fitting 17. Then, the slide plate 3 is fixed to the drawer shape or disconnector 2.

When the drawer cutter or disconnector 2 is moved from this state to the operating position, the plug 5, slide plate 3, rod pin 9, and operating handle 10 are integrated with the drawer cutter or disconnector 2 in the left horizontal direction from the disconnection position. At the same time as the plug 5 is connected to the jack 7, the drawer type and disconnector 2 are placed in the operating position, and the drawer type and disconnector 2 can be operated.

Since the conventional closed switchboard device is configured as described above, when connecting and disconnecting the plug 5 and the jack 7 at the disconnection position of the drawer type disconnector 2, it is necessary to use the drawer type disconnector 2. control wire bundle 6
is stretched during the connection operation and subjected to bending force during the disconnection operation. Therefore, if the above-mentioned connecting and disconnecting operations are repeated, there is a drawback that the control wire bundle 6 of the breaker often breaks. In addition, when connecting or disconnecting at the disconnection position, the control wire bundle 6 of the disconnector is deformed, so the operating force becomes excessive, and it is necessary to lean on the dedicated lever 14 to operate the device. becomes expensive. Furthermore, when opening/closing the drawer type disconnector 2 at the disconnection position, the plug 5 is naturally separated from the jack 7 due to the restoring force of the control wire bundle 6 of the disconnector, and the opening/closing operation is performed. There were drawbacks such as the inability to do so.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above. An embodiment of this invention will be described below with reference to the drawings.

Fig. 2 is a partial side sectional view showing one embodiment of the closed switchboard device according to this invention, Fig. 3 is a plan sectional view taken along the line - of Fig. 2, and Fig. 4 is a sectional view taken along the line - of Fig. 2. , Figure 5 shows the line in Figure 2 -
FIG. 6 is a partially enlarged side view showing details of the operating handle in FIG. 5, and FIG. 7 is a cross-sectional view of FIG.
It is a sectional view taken along the line - in the figure. 1st in each figure
Parts corresponding to the figures are designated by corresponding symbols, and in FIGS. 4 and 5, the control wire bundles of the choppers and disconnectors are omitted. In FIGS. 2 to 7, the operating handle 10A is configured in an L-shape, and the end of one side 10a is connected to the first pin 1.
1 is rotatably attached to the rod pin 9. The fixing fitting 17A is attached to the front surface of the drawer type or disconnector 2, and has a first through hole 17a into which the rod pin 9 is inserted movably in the horizontal direction, and a second through hole 17a into which a post bolt 19 (described later) is inserted. Through hole 17b
It is equipped with Chiyo bolt 19 is fixing metal fitting 1
It is inserted through the second through hole 17b of 7A and removably screwed into the screw seat 3b provided on the slide plate 3, thereby fixing the slide plate 3 to the fixture 17A. The guide plate 20 is attached to the side plate of the shield cutter 2 with screws 21b via a spacer 21a, and slides on both upper and lower sides of the slide plate 3 to support the slide plate 3 so as to be slidable in the horizontal direction. The spacer 21a is slightly thicker than the slide plate 3. Wire holder 22 Pull-out shape and disconnector 2 for control wire bundle 6
It rotatably holds the opening from the inside to the outside, and each L-shaped piece has a through hole 2.
2a and 22b, and a boss 22e that is rotatably inserted through the through hole 22b and the through hole 2a provided in the side wall of the drawer-shaped disconnector 2 and has a through hole 22d. It is structured as follows. The retaining ring 23 is attached to the boss 2 to prevent the wire holder 22 from coming off the through hole 2a of the drawer or disconnector 2.
2e, and the wire bundle 6 for control of the disconnector is connected from the inside of the drawer-type disconnector 2 through the through hole 22d of the boss 22e and the through hole 22a of the L-shaped fitting 22c. It is led out and held rotatably. The clip 24 is attached to the fixture 17A to hold the operating handle 10A, and when the operating handle 10A is pulled out as shown by the solid line in FIG. 2 and in FIG. 6, it holds one side 10a of the L-shape. When the operating handle 10A is pushed in as shown by the two-dot chain line in FIG. 2, the other side 10b of the L-shape is held.

Next, the operation will be explained. In Figure 2,
The drawer type or disconnector 2 is used in either the disconnection position or the operating position by a drawer mechanism (not shown) provided in the drawer type or disconnector 2. Now, the second
When the drawer type or disconnector 2 is in the disconnected position as shown by the solid line in the figure, after removing the chiyo bolt 19 from the slide plate 3 and rotating the operating handle 10A from the solid line position to the position shown by the two-dot chain line. , when pushed in the left horizontal direction, the slide plate 3 and plug 5 are also pushed in the left horizontal direction, and the control wire bundle 6 of the shredder breaker is rotated around the wire holder 22. With the other L-shaped side 10b of the operating handle 10A inserted into the clip 24, the contact 5a of the plug 5 is connected to the jack 7 as shown by the dashed line in FIGS. 2 and 3. The drawer shape and the disconnector 2 can be operated in the disconnection position. In this state, the other L-shaped side 10b of the operating handle 10A is held by the clip 24, so
The plug 5 remains connected to the jack 7 unless the operating handle 10A is intentionally pulled back.

Next, when the drawer type and disconnector 2 are moved to the operating position from this state, the slide plate 3, the plug 5,
The rod pin 9 and the operating handle 10A remain pushed in at the disconnection position, and only the drawer shape and the disconnector 2 move in the left horizontal direction. During this movement, the operating handle 10A rotates clockwise around the first pin 11 due to its own weight, and the L-shaped end 1
0a is held by the clip 24. In addition, the connection between the plug 5 and the jack 7 is disconnected from the state where the drawer type disconnector 2 is in the disconnection position and the plug 5 is connected to the jack 7 as shown by the dashed line in FIGS. 2 and 3. If you want to release it, use the operating handle 10A.
Pull back the other L-shaped side 10b until the slide plate 3 abuts the fixing fitting 17A, and then
9 is inserted through the second through hole 17b of the fixing fitting 17A, and the screw seat 3b provided on the slide plate 3 is inserted.
to fix the slide plate 3 to the fixing fitting 17A.

When the drawer type and disconnector 2 are moved to the operating position from this state, the plug 5, slide plate 3, rod pin 9, and operating handle 10A are horizontally moved to the left of the disconnection position shown by the solid line in Figures 2 and 3. The plug 5 moves together with the drawer shape and the disconnector 2 in the direction.
is connected to the jack 7, the drawer type and disconnector 2 are located in the connection position, and the drawer type and disconnector 2 are connected to the jack 7.
It becomes possible to drive.

In the above embodiment, the wire holder 22 is provided above the plug 5, but it may be provided below the plug 5.

This invention is constructed as described above, and a rotatable wire holder 22 is provided at the wire draw-out portion of the secondary junction of the drawer-type disconnector 2 to prevent deformation of the control wire bundle 6 of the disconnector. Therefore, the operating force for connecting and disconnecting the drawer type disconnector 2 at the disconnection position is small, and disconnection accidents of the control wire bundle 6 of the drawer disconnector 2 do not occur. Further, the operating handle 10A is configured in an L-shape, and the other L-shaped side 10b of the operating handle 10A is held by a clip 24 when the plug 5 and jack 7 are connected in the disconnection position of the drawer type or disconnector 2. This prevents the plug 5 and the jack 7 from being separated, so that the opening and closing operations of the drawer and the disconnector 2 will not become impossible. Furthermore, since the slide plate 3 is fixed to the fixture 17A by the bolt 19, erroneous operation can be prevented and reliability is improved.

As described above, this invention has various effects such as being able to prevent disconnection accidents due to its simple structure, making operation easier and more reliable, and improving reliability.

[Brief explanation of the drawing]

Fig. 1 is a partial side sectional view showing a conventional closed switchboard device, Fig. 2 is a partial side sectional view showing an embodiment of the closed switchboard device according to the present invention, and Fig. 3 is a plane taken along the line - in Fig. 2. 4 is a sectional view taken along the line - in Fig. 2, Fig. 5 is a sectional view taken along the line - in Fig. 2, and Fig. 6 is a partially enlarged side view showing details of the operating handle portion in Fig. 5. , FIG. 7 is a sectional view taken along the line - in FIG. 6. In Figures 1 to 7, 1 is a closed switchboard, 2 is a drawer type or disconnector, 3 is a slide plate, 3
b is a screw seat, 5 is a plug, 5a is a contact, 5b is a guide pin, 6 is a bundle of wires for controlling the wires and disconnectors, 7 is a jack, 8 is a bundle of wires on the panel side, 9 is a rod pin, 10
A is an operating handle, 10a and 10b are L-shaped one side and the other side, 11 is a first pin, 17A is a fixing metal fitting, 17a and 17b are first and second through holes, 19
20 is a guide plate, 21a is a spacer, 21b is a screw, 22 is an electric wire holder, 22
a, 22b are through holes, 22c are L-shaped fittings, 22
d is a through hole, 22e is a boss, 23 is a retaining ring, 24
is a clip. Note that corresponding parts in each figure are given corresponding symbols.

Claims (1)

[Scope of claim for utility model registration] (1) A jack installed in a closed switchboard, a plug that is inserted into the jack, a slide plate to which the plug is attached, and a slide plate that is slidably held on the side. and a drawer type or disconnector which is housed in the closed switchboard and moves between an operating position in which the plug is inserted into the jack for connection and a disconnection position in which the plug is pulled out from the jack and separated; An operation handle for pushing the slide plate in the disconnection position of the shield breaker to insert and connect the plug into the jack; A control wire connected to a control device in the device, and a side wall penetrating portion of the control wire that is rotatably provided on a side wall of the breaker and rotatably held in a direction that follows the movement of the plug. The electric wire holder is provided with a wire holder, and the electric wire holder is inserted in the disconnection position of the wire breaker when the plug is inserted into the jack by pushing the slide plate with the operation handle to connect the wire holder. A closed switchboard device characterized in that the closed switchboard device is adapted to rotate in a direction to assist movement of the control wire. (2) The operating handle is configured in an L-shape, and the tip of one side of the L-shape is rotatably attached to a rod pin, and when the operating handle is not pushed in, one side of the L-shape is in a drawer shape. Registration of a utility model, which is held by a clip provided on the front side of the cutter, and is configured such that the other side of the L-shape is held by the clip when the operation handle is fully pushed in. A closed switchboard device according to claim 1.