CN202491196U - Electrification overhaul spanner - Google Patents

Abstract

The utility model discloses a live maintenance wrench, which belongs to the field of power equipment maintenance tools. It includes an insulating rod, a connecting head and a ratchet wrench; the lower end of the connecting head is connected with the insulating rod, and the upper end of the connecting head is connected with the ratchet wrench. The lower end of the connector is provided with a hole matching the outer diameter of the insulating rod, and a compression screw is provided on the wall of the hole, and the insulating rod is inserted into the hole and fixed with the connector by the compression screw; the connection The upper end of the head is provided with a connection notch, and the handle end of the ratchet wrench is located in the connection notch and connected by bolts. The connectors are wrapped with insulating heat shrink tape. The utility model can fasten the sealing screw when the transformer is not powered off, quickly eliminate the accident of transformer oil leakage, ensure the safe operation of maintenance personnel, and ensure the safe operation of equipment.

Description

A live maintenance wrench

technical field

The utility model relates to a live maintenance wrench, in particular to a connection head between a wrench and an insulating rod.

Background technique

Power transformer oil leakage is a common fault, especially for transformers that have been in operation for many years. The light ones pollute the appearance of the equipment and affect the appearance, and the severe ones affect the operation of the equipment or even cause the equipment to be scrapped. Changes in temperature can easily lead to loosening of the sealing screws and leakage of transformer oil. leak. There are many screw sealing points in the transformer, and the distance between some sealing points and live points can ensure the safe operation of the staff; the distance between some sealing points and live points cannot guarantee the safe operation of the staff, and the transformer oil leakage at the sealing points It can only be repaired by power failure.

Utility model content

The technical problem to be solved by the utility model is to provide a live maintenance wrench, which can fasten the sealing screw of the transformer without power failure, and quickly eliminate the oil leakage fault of the transformer.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a live maintenance wrench, characterized in that it includes an insulating rod, a connecting head and a ratchet wrench; the lower end of the connecting head is connected with the insulating rod, and the connecting head The upper end is connected with a ratchet wrench.

The further improvement made to the utility model is: the lower end of the connector is provided with a hole matching the outer diameter of the insulating rod, and a compression screw is provided on the wall of the hole, and the insulating rod is inserted into the hole and passed through the pressure. The tightening screw is fixed with the connecting head; the upper end of the connecting head is provided with a connecting notch, and the handle end of the ratchet wrench is located in the connecting notch and connected by bolts. The connectors are wrapped with insulating heat shrink tape.

The beneficial effect of adopting the above technical solution is that the sealing screw can be tightened without power failure of the transformer, the accident of transformer oil leakage can be eliminated quickly, and the safe operation of the maintenance personnel and the safe operation of the equipment can be ensured.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the front view of the utility model;

Fig. 2 is a left side view of Fig. 1 .

As shown in Figure 1: 1 insulating rod, 2 connector, 3 ratchet wrench, 4 compression screw, 5 hole, 6 connection notch, 7 bolt.

Detailed ways

Referring to Fig. 1 and Fig. 2, the operation and use steps of the present utility model are further explained: a live overhaul wrench, characterized in that it includes an insulating rod 1, a connector 2 and a ratchet wrench 3; the lower end of the connector 2 is connected to the insulating rod 1 Connection, the upper end of the connector 2 is connected with the ratchet wrench 3. The lower end of the connector 2 is provided with a hole 5 matching the outer diameter of the insulating rod 1, and a compression screw 4 is provided on the wall of the hole 5, and the insulating rod 1 is inserted into the hole 5 and passed through the compression screw 4. It is fixed with the connecting head 2; the upper end of the connecting head 2 is provided with a connecting notch 6, and the handle end of the ratchet wrench 3 is located in the connecting notch 6 and connected by a bolt 7. The connector 2 is wrapped with an insulating heat shrinkable tape.

Embodiment 1: Select an insulating rod 1 with a suitable length, insert it into the hole 5 provided at the lower end of the connector 2, and tighten the compression screw 4, so that the insulating rod 1 and the lower end of the connector 2 are firmly connected. The handle end of the ratchet wrench 3 is put into the connection notch 6 on the connector 2 upper ends, and the bolt 7 traverses through the hole of the connection notch 6 and the handle hole of the ratchet wrench 3 and is fastened with a nut. Seal the connector 2 and its periphery with insulating heat shrink tape. The operator stands outside a safe distance and uses the ratchet wrench 3 to cover the loose screws of the transformer, pulls the insulating rod 1 back and forth, and drives the ratchet wrench 3 to apply fastening force to the screws, so that the transformer screws can be tightened quickly. If the fastening screw types are different, the bolt 7 can be pulled down to replace the ratchet wrench 3 of other types, and the transformer maintenance work can be successfully completed. Since the connecting head 2 and its surroundings are wrapped by the insulating heat-shrinkable tape, the insulation and sealing are good, which can ensure the safe operation of the construction personnel without power failure.

Claims (3)

1. a hotline maintenance spanner is characterized in that: comprise insulating bar (1), connector (2) and ratchet spanner (3); Said connector (2) lower end is connected with insulating bar (1), and said connector (2) upper end is connected with ratchet spanner (3).

2. a kind of hotline maintenance spanner according to claim 1; It is characterized in that: said connector (2) lower end is provided with and the suitable hole (5) of insulating bar (1) external diameter; The wall in said hole (5) is provided with housing screw (4), fixes in said insulating bar (1) patchhole (5) and through housing screw (4) and connector (2); Said connector (2) upper end is provided with mouth of connecting trough (6), and the handle end of said ratchet spanner (3) is positioned at mouth of connecting trough (6) and connects through bolt (7).

3. a kind of hotline maintenance spanner according to claim 2 is characterized in that: said connector (2) is wrapped up by the isolating shrinkable band.

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