CN213026605U - Three-hole plug for overhauling power panel - Google Patents

Abstract

The utility model discloses an overhaul three hole plugs for power panel, including electric conductor and power cord, still include solid insulation head and arrange in this solid insulation head and the binding post that can reciprocate in, electric conductor one end is arranged in solid insulation head and is connected, one end stretches out solid insulation head with binding post cartridge, but is equipped with the mounting hole that the power cord clearance runs through on the solid insulation head that corresponds the department with binding post, the power cord passes mounting hole detachable and clamps between binding post and electric conductor, the electric conductor passes through binding post and the one-to-one inseparable butt joint of power cord. The utility model adopts the solid structure as the insulating head, the structure is more stable, the operation personnel can be avoided trampling to lead to the plug to deform or even damage and lead to the maintenance operation to interrupt or even the personnel to get an electric shock in the complex maintenance operation site, and the reliability and the safety of the maintenance power supply in the operation site can be greatly improved; when the in-station maintenance power box is used for accessing a maintenance power supply, the power line can be detached only by moving the wiring terminal.

Description

Three-hole plug for overhauling power panel

Technical Field

The utility model relates to an electric power system field especially relates to an overhaul three hole plugs for power panel.

Background

When the secondary safety measure maintenance operation site of the transformer substation receives the maintenance power supply, the maintenance power panel is needed, so that the maintenance power panel is a device with extremely high utilization rate. When the in-station maintenance power box is used for connecting and taking out a maintenance power supply, the three-hole plug of the power panel needs to be integrally disassembled, and the maintenance power supply is connected and taken out after the zero line, the live line and the ground line are taken out. The maintenance power panel three-hole plug in the present stage is mostly with split type hollow split type three-hole plug, and this kind of plug has following drawback:

(1) traditional hollow split type three hole plug structure is complicated, overhauls the power and connects when getting, need carry out whole demolising to the plug earlier, demolishs respectively to three inside wires again, and the dismouting step is loaded down with trivial details, and dismouting work is complicated, and the inside metal small components and parts easily drop the loss in the dismouting in-process, has the wrong wiring risk.

(2) Due to the adoption of the hollow structure, the stability is not strong, the plug is easy to be trampled by an operator on a complex overhauling site, and the plug is deformed or even damaged, so that the overhauling operation is interrupted or even the operator gets an electric shock.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a maintenance three hole plugs for power pack that the operation is more convenient, the security is higher.

The utility model provides a three hole plugs for maintenance power panel, including electric conductor and power cord, still include solid insulation head and arrange in this solid insulation head and the binding post that can reciprocate in, electric conductor one end is arranged in solid insulation head and is connected, one end stretches out solid insulation head with binding post cartridge, but is equipped with the mounting hole that the power cord clearance runs through on the solid insulation head that corresponds the department with binding post, the power cord passes mounting hole detachable and clamps between binding post and electric conductor, the electric conductor passes through binding post and a pair of inseparable butt joint of power cord.

The binding post includes the conducting frame and connects the piece that resets on the conducting frame, what the conducting frame can reciprocate inlays dress in solid insulating head, and the electric conductor is arranged in one end in solid insulating head and is inserted in the conducting frame and meet with the conducting frame inner wall, the power cord passes in the mounting hole inserts the conducting frame, and the conducting frame shifts up by the drive that resets and drives the power cord and closely dock with the electric conductor bottom surface.

The reset piece is a screw in threaded connection with the top of the conductive frame, a countersunk head mounting hole through which the screw can penetrate conveniently is formed in the solid insulating head at the position corresponding to the screw, and the screw drives the conductive frame to move up and down in the solid insulating head in a rotating mode.

And a rubber insulating cover is clamped on the solid insulating head outside the countersunk head mounting hole.

The reset piece is a compression spring arranged at the bottom of the conductive frame, an operation hole communicated with the top of the conductive frame is formed in the solid insulating head, and the compression spring is pressed to drive the conductive frame to move upwards in the solid insulating head so as to drive the power line to be in close butt joint with the bottom surface of the conductive body.

And a rubber insulating pad is fixedly connected to the top of the conductive frame.

The number of the electric conductors, the number of the connecting terminals and the number of the power lines are three, the electric conductors are a live wire conductor, a zero wire conductor and a ground wire conductor, and the power lines are a live wire conductor, a zero wire conductor and a ground wire conductor.

The solid insulating head adopts an integrated structure.

In order to avoid miswiring when a power supply is accessed or the wiring of a plug is recovered, corresponding indication marks are marked on the solid insulating heads at the positions corresponding to the live conductor, the zero conductor and the ground conductor.

The utility model adopts the solid structure as the insulating head, compared with the traditional hollow three-hole plug, the structure is more stable, the operation personnel can be avoided trampling to lead to the plug to deform or even damage to lead to the maintenance operation to interrupt or even the personnel to get an electric shock in the complex maintenance operation site, and the reliability and the safety of the maintenance power supply in the operation site can be greatly improved; when the power box is overhauled in the station to connect and get the overhauling power supply, the power line can be detached and the connection and the taking of the overhauling power supply can be completed only by moving the wiring terminal, so that the overhauling work efficiency is greatly improved, and the operation is convenient, fast and easy.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of the reset member of the present invention.

Fig. 2 is a schematic view of a part of a sectional structure at a-a in fig. 1.

Fig. 3 is a schematic view of a partial cross-sectional structure at B-B in fig. 1.

Fig. 4 is a schematic structural diagram of the power cord in fig. 2 when being disassembled and assembled.

Fig. 5 is a schematic structural view of the restoring member of the present invention being a compression spring.

The labels shown in the figures and the corresponding component names are:

1. an electrical conductor; 11. a live conductor; 12. a neutral conductor; 13. a ground conductor;

2. a solid insulating head; 21. mounting holes; 22. a countersunk mounting hole; 23. an operation hole; 24. an indication mark;

3. a wiring terminal; 31. a conductive frame; 32. a screw; 33. a compression spring;

4. a power line; 41. a live line; 42. a zero line; 43. a ground wire;

5. a rubber insulating cover;

6. a rubber insulating pad.

Detailed Description

Example one

As can be seen from fig. 1 to 4, the three-hole plug for repairing the power panel of the present embodiment includes a conductive body 1, a solid insulating head 2, a connection terminal 3 and a power line 4,

the connecting terminal 3 comprises a conductive frame 31 and a reset piece, the reset piece is a screw 32 which is connected with the top of the conductive frame 31 in a threaded manner, the conductive frame 31 can be embedded in the solid insulating head 2 in an up-and-down moving manner,

the rear end of the solid insulating head 2 is provided with a mounting hole 21 for the power wire 4 to pass through, a countersunk head mounting hole 22 for the screw 32 to pass through is arranged on the solid insulating head 2 corresponding to the screw 32,

one end of the conductor 1 is arranged in the solid insulating head 1 and inserted into the conducting frame 31, and the other end extends out of the solid insulating head 2, the left and right outer side walls of the conductor 2 inserted into the conducting frame 31 are connected with the inner walls of the left and right sides of the conducting frame 31,

the power cord 4 is inserted into the conductive frame 31 through the mounting hole 21,

during assembly, only a cross screwdriver is used for forward screwing the screw 32 on the wiring terminal 3, the screw 32 rotates to drive the conductive frame 31 to move upwards in the solid insulating head 2, the conductive frame 31 moves upwards to drive the power line 4 to be clamped between the inner wall of the lower side of the conductive frame 31 and the bottom surface of the electric conductor 1, and the electric conductor 1 is in one-to-one tight butt joint with the power line 4 through the wiring terminal 3;

during maintenance, the cross screwdriver is only needed to reversely screw the screw 32 on the wiring terminal 3, the screw 32 rotates to drive the conductive frame 31 to move downwards in the solid insulating head 2, and the conductive frame 31 moves downwards to loosen the power line 4 clamped between the lower vehicle inner wall of the conductive frame 31 and the bottom surface of the conductive body 1, so that the power line 4 on the solid insulating head 2 can be pulled out; then, the maintenance power line is inserted into the conductive frame 31 from the mounting hole 21, the screw 32 is screwed forward to drive the conductive frame 31 to move upwards, the conductive frame 31 moves upwards to drive the maintenance power line to be clamped between the inner wall of the lower side of the conductive frame 31 and the bottom surface of the conductive body 1, and the work of receiving and taking the maintenance power line is completed.

As can be seen from fig. 1 to 4, the present embodiment further includes a rubber insulation cover 5, and the rubber insulation cover 5 is clipped on the solid insulation head 2 outside the countersunk head mounting holes 22 through a clipping pin and completely covers each countersunk head mounting hole 22.

As can be seen from fig. 1 to 4, in the present embodiment, there are three electrical conductors 1, three connection terminals 3 and three power lines 4, the electrical conductors 1 are respectively a live conductor 11, a neutral conductor 12 and a ground conductor 13, the power lines 4 are respectively a live conductor 41, a neutral conductor 42 and a ground conductor 43 arranged in one-to-one correspondence with the live conductor 11, the neutral conductor 12 and the ground conductor 13, and corresponding indication marks 24, which are respectively N (live wire), L (neutral wire) and E (ground wire), are marked on the solid insulation head 2 corresponding to the live conductor 11, the neutral conductor 12 and the ground conductor 13.

In the present embodiment, the solid insulation head 2 is of a one-piece construction.

Example two

As shown in fig. 5, the difference between this embodiment and the first embodiment is that the reset element in the connection terminal 3 is a compression spring 33 disposed in the solid insulation head 2 and connected to the bottom of the conductive frame 31, the solid insulation head 2 is provided with an operation hole 23 communicated with the top of the conductive frame 31, and the top of the conductive frame 31 is fixedly connected with a rubber insulation pad 6;

during maintenance, the screwdriver is only required to penetrate through the operation hole 23 to press the conductive frame 31 downwards, the compression spring 33 is pressed, the conductive frame 31 moves downwards in the solid insulating head 2 to loosen the power line 4 clamped between the lower vehicle inner wall of the conductive frame 31 and the bottom surface of the conductive body 1, and the power line 4 on the solid insulating head 2 can be pulled out; when the conductive frame 31 is pressed, the maintenance power line is inserted into the conductive frame 31 from the mounting hole 21, the screwdriver is taken down, the compression spring 33 resets to push the conductive frame 31 to move upwards, the conductive frame 31 moves upwards to drive the maintenance power line to be clamped between the inner wall of the lower side of the conductive frame 31 and the bottom surface of the conductive body 1, and the power line is completely taken out during maintenance.

Claims (9)

1. The utility model provides an overhaul three hole plugs for power pack, includes electric conductor (1) and power cord (4), its characterized in that: the solid insulation terminal comprises a solid insulation head (2) and a wiring terminal (3) which is arranged in the solid insulation head and can move up and down, wherein one end of the conductor is arranged in the solid insulation head and is connected with the wiring terminal in a plug-in mounting mode, one end of the conductor extends out of the solid insulation head, a mounting hole (21) which can allow a power line to penetrate through is formed in the solid insulation head corresponding to the wiring terminal, the power line penetrates through the mounting hole and is detachably clamped between the wiring terminal and the conductor, and the conductor is in one-to-one tight butt joint with the power line.

2. The triple-aperture plug for servicing power panels of claim 1, wherein: the binding post includes conductive frame (31) and connects and resets the piece on the conductive frame, what the conductive frame can reciprocate inlays dress in solid insulating head, and the electric conductor is arranged in one end in solid insulating head and is inserted in the conductive frame and meet with the conductive frame inner wall, the power cord passes in the mounting hole inserts the conductive frame, and the conductive frame shifts up by the drive that resets and drives the power cord and closely dock with the electric conductor bottom surface.

3. The triple-aperture plug for servicing power panels of claim 2, wherein: the piece that resets is screw (32) at threaded connection top of conductive frame, is equipped with countersunk head mounting hole (22) that the screw of being convenient for passed on the solid insulation head that corresponds the department with the screw, and screw rotation drive conductive frame reciprocates in solid insulation head.

4. The triple-aperture plug for servicing power panels of claim 3, wherein: and a rubber insulating cover (5) is clamped on the solid insulating head outside the countersunk head mounting hole.

5. The triple-aperture plug for servicing power panels of claim 2, wherein: the reset piece is a compression spring (33) arranged at the bottom of the conductive frame, an operation hole (23) communicated with the top of the conductive frame is formed in the solid insulating head, and the compression spring is pressed to drive the conductive frame to move upwards in the solid insulating head so as to drive the power line to be in close butt joint with the bottom surface of the conductive body.

6. The triple-aperture plug for servicing power panels of claim 5, wherein: and a rubber insulating pad (6) is fixedly connected to the top of the conductive frame.

7. The triple-aperture plug for servicing power panels of claim 1, wherein: the number of the electric conductors, the number of the connecting terminals and the number of the power lines are three, the electric conductors are a live wire conductor (11), a zero wire conductor (12) and a ground wire conductor (13), and the power lines are a live wire (41), a zero wire (42) and a ground wire (43).

8. The triple-aperture plug for servicing power panels of claim 7, wherein: corresponding indicators (24) are marked on the solid insulation heads corresponding to the live, neutral and ground conductors.

9. A three hole plug for an inspection power supply panel according to any one of claims 1 to 8, wherein: the solid insulating head adopts an integrated structure.

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