CN202846443U - Electrified overhauling wrench - Google Patents

Abstract

The utility model discloses a live overhaul wrench, which comprises a first insulating pull rod, a first bracket and an upper sleeve for preventing bolts from rotating, and a second insulating pull rod, a second bracket and a lower sleeve for fastening the bolts; The first insulating rod and the first bracket, the second insulating rod and the second bracket are all fixed by welding; the second bracket and the first bracket are flexibly socketed through the casing on the first bracket; Both the first bracket and the upper sleeve, and the second bracket and the lower sleeve are connected flexibly. The beneficial effects of the utility model are as follows: the length of the insulating rod can be adjusted freely, and the inspection and maintenance of power line bolts of different heights can be realized. When there is no need for power outages, the reliability of power supply can be improved, and the economic interests of power companies can be effectively maintained; the overall structure is simple, and it is easy to disassemble and carry.

Description

Live maintenance wrench

technical field

The utility model relates to a live maintenance wrench, which is suitable for the technical field of power system maintenance.

Background technique

At present, the overhead lines of the national power department often need to be repaired after being used for a period of time. For example, the looseness of the primary equipment (switches, CTs, PT leads, etc.) normal production and life. The main reasons for the looseness of primary equipment are: oxidation of the contact surface; swinging of lead wires due to excessive wind force; poor quality of bolts; poor quality of line cards. The causes of these failures often occur during the peak power consumption period in summer. Once an accident occurs, it needs to be repaired immediately. Taking a 110KV line outage for 2 hours as an example, the power outage loss caused by each failure is about 30,000 KWh. For the maintenance of electrical equipment, the current general-purpose tools mainly include maintenance wrenches for fastening bolts, etc. The existing maintenance wrenches are made of conductive materials and require power-off maintenance; To carry out maintenance, low efficiency, poor safety and reliability. Therefore, there is an urgent need for an inspection wrench that can be used with electricity and without climbing.

Utility model content

The technical problem to be solved by the utility model is to provide a live maintenance wrench which can be operated live on the ground, which has a simple structure, is easy to carry, and improves maintenance efficiency.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a live maintenance wrench, including a first insulating pull rod, a first bracket and an upper sleeve used to prevent the bolt from rotating, and a second bolt used to fasten the bolt. The insulating rod, the second bracket and the lower sleeve; the first insulating rod and the first bracket, the second insulating rod and the second bracket are all fixed by welding; the second bracket and the first bracket are fixed by welding The casing on the first bracket is flexibly socketed; the first bracket and the upper sleeve, and the second bracket and the lower sleeve are all flexibly connected.

The first bracket and the upper sleeve are movably connected through a square joint, the square joint is welded to the first bracket, and the upper sleeve is clamped with the square joint; the second bracket and the lower sleeve are flexibly connected through a square joint, and the square joint It is welded with the second bracket, and the lower sleeve is clamped with the square joint.

The working process of using the live maintenance wrench described in the utility model for live maintenance is as follows: (1) According to the type of bolt to be fastened or replaced, select the appropriate corresponding upper and lower sleeves, and install the upper sleeve to the first bracket (2) The maintenance personnel hold the first insulating pull rod, put the upper sleeve close to the upper part of the bolt to be fastened, and fix it still; (3) The maintenance personnel adjust the wrench according to the size of the bolt The size of the opening, and then operate the second insulating pull rod to make the lower sleeve close to the lower part of the bolt to be fastened; (4) Turn the second insulating pull rod to tighten or disassemble the bolt.

The beneficial effects produced by adopting the above-mentioned technical scheme are:

(1) Install the bolt sleeve on the insulating rod through the bracket, the length of the insulating rod can be adjusted freely, and the maintenance of power line bolts at different heights can be realized. The maintenance personnel can operate on the ground without climbing up, which improves the safety and maintenance of maintenance. efficiency;

(2) Since the maintenance personnel operate through insulating rods, there is no need to cut off the power during the maintenance work, which improves the reliability of power supply and effectively maintains the economic interests of power companies;

(3) Since the various parts of the maintenance wrench are movably connected, the structure is simple, and it is easy to disassemble and carry.

Description of drawings

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

Fig. 1 is a structural representation of the utility model;

Wherein, 1, the first insulating pull rod, 2, the second insulating pull rod, 3, the first bracket, 4, the second bracket, 5, the upper pulley, 6, the lower pulley.

Detailed ways

As can be seen from the embodiment shown in Figure 1, the live overhaul wrench described in the utility model includes a first insulating pull rod 1, a first bracket 3 and an upper sleeve 5 for preventing the bolt from rotating, and a first bolt for fastening the bolt. Two insulating rods 2, the second bracket 4 and the lower sleeve 6; between the first insulating rod 1 and the first bracket 3, between the second insulating rod 2 and the second bracket 4 are all fixed by welding; the second The support 4 and the first support 3 are flexibly socketed through the sleeve on the first support 3; between the first support 3 and the upper sleeve 5, and between the second support 4 and the lower sleeve 6 are all movably connected.

The first bracket 3 and the upper sleeve 5 are movably connected through a square joint, the square joint is welded to the first bracket 3, the upper sleeve 5 is clamped with the square joint; the second bracket 4 and the lower sleeve 6 are connected through a square joint Flexible connection, the square joint is welded to the second bracket 4, and the lower sleeve 6 is clamped with the square joint.

The working process of using the above-mentioned live inspection wrench for live inspection is as follows:

(1) According to the type of bolts to be fastened or replaced, select the appropriate corresponding upper sleeve head 5 and lower sleeve head 6, and install the upper sleeve head 5 on the first bracket 3, and install the lower sleeve head 6 on the second bracket 4;

(2) The maintenance personnel hold the first insulating pull rod 1, put the upper sleeve head 5 close to the upper part of the bolt to be fastened, and fix it still;

(3) The maintenance personnel adjust the size of the opening of the wrench according to the size of the bolt, and then operate the second insulating rod 2 to make the lower sleeve 6 close to the lower part of the bolt to be tightened;

(4) Turn the second insulating rod 2 to fasten or remove the bolts. the

Claims (2)

1. A live repair wrench, characterized in that it includes a first insulating pull rod (1), a first bracket (3) and an upper sleeve (5) for preventing bolt rotation, and a second insulating rod for tightening bolts Pull rod (2), second bracket (4) and lower sleeve (6); between the first insulating pull rod (1) and the first bracket (3), between the second insulating pull rod (2) and the second bracket (4) ) are fixed by welding; the second bracket (4) and the first bracket (3) are flexibly socketed through the sleeve on the first bracket (3); the first bracket (3) and the upper There are flexible connections between the pulleys (5) and between the second support (4) and the lower pulley (6). 2. The live overhaul wrench according to claim 1, characterized in that, the first bracket (3) and the upper sleeve (5) are movably connected by a square joint, and the square joint is welded to the first bracket (3), The upper sleeve (5) is clamped with the square joint; the second bracket (4) and the lower sleeve (6) are movably connected through the square joint, the square joint is welded to the second bracket (4), and the lower sleeve (6) is connected to the The square connector snaps together.

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