JPH036085Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a closed switchboard device that accommodates drawers and disconnectors.

[Conventional technology]

Conventional closed switchboard devices of this type are shown in Figures 4 to 9.
The diagram will be explained. In the figure, 1 is a closed switchboard, 2 is its first roaring terminal, 3 is a drawer type or disconnector,
4 is the primary connector, 5 is a secondary connector unit installed on the upper part of the edge disconnector 3, and is slidably inserted into the fixed frame 5a fixed to the edge disconnector 3 and this fixed frame 5a. It is composed of a movable frame 5b. 6 is a movable-side secondary connector attached to the movable frame 5b, 7 is a secondary connector attached to the closed switchboard 1, and 8 is a butterfly bolt for fixing the movable frame 5b to the fixed frame 5a. It is screwed into the stopper 10 of the movable frame 5b through the hole 9. 1
Reference numeral 1 designates a manually operated rod whose one end is connected to the movable frame 5b and whose other end protrudes forward from the front hole 12 of the fixed frame 5a, and is connected by a connecting pin 13 so that the intermediate portion thereof is bent.

FIGS. 4 to 7 The secondary connectors 6 and 7 are also connected and disconnected by inserting and removing the chopper and disconnector 3. In other words, as the primary connector 4 is disconnected and connected, the movable secondary connector 6 is automatically connected. are disconnected and connected. Therefore, the movable frame 5b is fixed to the fixed frame 5a by wing bolts 8, and the manual operation rod 11 is folded at the connecting pin 13 and fixed to the front surface of the fixed frame 5a by a clamper (not shown). FIG. 4 shows the inserted state of the cutter 3. In this state, the primary connector 4 is connected to the primary terminal 2 and can be energized, and the movable secondary connector 6 is connected to the secondary connector 7. is connected to constitute a secondary side control circuit. Furthermore, the fifth
Figures 7 to 7 show the state where the cutter 3 is pulled out.

Next, in the disconnection position of the primary connector 4 from which the shield breaker 3 is pulled out as shown in FIGS. 5 to 7, the movable secondary connector 6 is connected in order to conduct an opening/closing test of the shield breaker 3. In this case, first remove the butterfly bolt 8 to free the movable frame 5b, and then remove the manual operation rod 11.
Remove it from the clamper and straighten it out. In this state, push in the manual operation rod 11 and move the movable frame 5b.
and move the movable side secondary connector 6 as shown in Fig. 8.
Connect to the secondary connector 7 as shown in FIG.

[Problem that the invention attempts to solve]

Since the conventional closed switchboard device is configured as described above, when the movable side secondary connector 6 is connected at the disconnection position of the shield breaker 3 and the opening/closing test of the shield breaker 3 is performed, the movable frame 5b or Since it is free with respect to the fixed frame 5a, the movable side secondary connector 6 gradually comes off from the secondary connector 7 due to vibrations during the opening/closing test of the shield breaker 3, and the control circuit is disconnected.
It may become impossible to remotely control the breaker 3 by electric operation, which may interfere with the test, or the breaker 3 may
There were problems such as the failure to operate would delay or mislead the judgment of anomaly detection.

This idea was devised to solve the above problems, and it prevents the movable secondary connector from coming off due to opening/closing vibrations of the shield breaker, making it possible to conduct opening/closing tests of the shield breaker by remote control. The purpose is to provide a closed switchboard device that obtains reliability.

[Means for solving problems]

In the closed switchboard device according to this invention, a protrusion is provided on the manual operation rod, the manual operation rod is pivotally attached to the movable frame side so that the protrusion part can swing, and a passage portion through which the protrusion can pass through the front hole is provided. and a non-passage part through which the protrusion cannot pass.

[Effect]

In this device, when the movable secondary connector is pushed in with the manual operation rod, the protrusion passes through the passage part, and when the manual operation rod is swung in the connected state, the protrusion engages with the fixed frame at the non-passage part, allowing the manual operation Prevents the operating rod from moving forward.

〔Example〕

Figures 1 to 3 show an embodiment of this invention.
13 is the same as the conventional device. Reference numeral 14 denotes a pin that vertically passes through the middle part of the manual operation rod 11, and protrusions 14a, 14a are formed by both ends of the rod that protrude symmetrically above and below the surface of the rod. Reference numeral 15 denotes a front hole drilled in the fixed frame 5a in the shape of a square, and both protrusions 14a,
A vertically long passage portion 15a through which the projection 14a can pass, and a horizontally long non-passage portion 1 through which both the protrusions 14a, 14a cannot pass.
5b.

Movable side secondary connector 6 at the disconnection position of the disconnector
When connecting, straighten the manual operation rod 11 and push it in. At this time, since the protrusions 14a, 14a pass through the passage portion 15a of the front hole 15, the movable frame 5b can be pushed to the position where the movable side secondary connector 6 is connected to the secondary connector 7. After the connection is completed, when the manual operation rod 11 is swung in the direction of the arrow 16 in FIG. As a result, the manual operation rod 11 is prevented from moving forward, and the movable side 2
Next connector 6 cannot be removed.

Next, when returning the movable secondary connector 6 to the disconnected position, it is sufficient to straighten the manual operation rod 11 and pull it forward.

In the above embodiment, two protrusions 14a are provided symmetrically on the surface of the manual operating rod 11 using pins 14, but for example, one protrusion may be provided on the surface of the rod.

Further, in the above-mentioned embodiment, the front hole 15 is provided in a square shape to match both the projections 14a, 14a, or if the projection is a single convex portion, the front hole may also be formed in an L shape.

[Effect of idea]

As explained above, this device has a simple structure in which a protrusion is provided on the manual operation rod and this protrusion is engaged with the front hole, thereby preventing the movable secondary connector from coming off due to vibrations caused by the opening and closing of the disconnector. This has the effect of providing reliability in opening/closing tests of shield disconnectors by remote control.

[Brief explanation of the drawing]

FIG. 1 is the same plan view as FIG. 8 showing an embodiment of this invention, and FIG. 2 is a sectional view taken along the line - in FIG. 1.
Fig. 3 is a sectional view taken along the line - in Fig. 1, Fig. 4 is a side view showing the connected state of the conventional device, Fig. 5 is a side view showing the disconnected state, and Fig. 6 is a sectional view taken along the line - shown in Fig. 5. 7 is a sectional view taken along the line - of FIG. 6;
This figure is the same as FIG. 6 in the connected state, and FIG. 9 is a sectional view taken along the line - in FIG. 8. In the figure, 1 is a closed switchboard, 2 is a primary terminal,
3 is the drawer shape and disconnector, 4 is the primary connector, 5
a is a fixed frame, 5b is a movable frame, 6 is a movable side secondary connector, 7 is a secondary connector, 11 is a manual operation rod, 14 is a pin, 14a, 14a are protrusions, 15
is a front hole, 15a is a passing portion, and 15b is a non-passing portion. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A secondary connector that connects the control circuit of a drawer or disconnector housed in a closed switchboard with the control circuit of the closed switchboard, or Automatically disconnects and connects when the primary connector is disconnected and connected by
A closed switchboard device capable of manually connecting the secondary connector at the pulled-out position of the shield breaker, the device comprising: a fixed frame attached to the shield breaker; A movable frame for moving the side secondary connector between a disconnection position and a connection position, and a manual operation rod having one end connected to the movable frame and the other end protruding forward from a front hole of the fixed frame, The manual operation rod is provided with a protrusion, the manual operation rod is pivotally attached to the movable frame so that the protrusion can swing, and the protrusion is provided with a passage portion through which the protrusion can pass through the front hole. When the movable side secondary connector is pushed in by the manual operation rod, the protrusion passes through the passage part, and when the manual operation rod is swung in the connected state, the protrusion or the non-passage part is provided. A closed switchboard device characterized in that a passage portion engages with the fixed frame to prevent forward movement of the manual operation rod. (2) The closed switchboard device according to claim 1, wherein the protrusions are symmetrically formed on the surface of the manually operated rod by both protruding ends of a pin passing through the intermediate portion of the rod. (3) The closed switchboard device according to claim 1 or 2 of the utility model registration claim, in which the front hole is shaped like a square.