CN204967124U - G5 turriform overhead earth wire lifting mechanism and link fitting change device - Google Patents

Abstract

The utility model discloses a G5 tower-shaped overhead ground wire lifter, which comprises a lifting rod, a nut, and a bracket. A through groove is provided at the lower end of the lifting rod, and the lifting rods on both sides of the through groove Corresponding positions are provided with installation holes, the bracket is sleeved on the lifting rod, the nut is threaded with the lifting rod, and the bracket is located between the nut and the through groove. The utility model also discloses a replacement device for overhead ground wire connection fittings. The utility model has the advantages of simple structure and convenient operation, which greatly reduces the on-site workload of replacing the G5 tower-type overhead ground wire connection fittings, reduces the number of operators, saves the physical strength of the operators, reduces the working time, and improves the working efficiency.

Description

A G5 tower-shaped overhead ground wire lifter and connecting hardware replacement device

technical field

The utility model relates to a power transmission line maintenance tool, in particular to a G5 tower-shaped overhead ground wire lifter and a connecting hardware replacement device.

Background technique

The total length of the connecting fittings for connecting the overhead ground wire of the G5 type iron tower is 327mm, and the large span (long distance) results in a large load on the connecting fittings. After investigation, the connecting fittings for the overhead ground wire of other lines can be replaced with a hand hoist and a screw. Loosen the connecting hardware by tightening the hand hoist and lead screw, then replace. However, the minimum shrinkage lengths of the hand hoist and lead screw that can withstand this load are 480mm and 450mm respectively, which are far greater than the length of the connecting fittings, making this method not suitable for the replacement of the connecting fittings of the overhead ground wire of the Xing’an DC line.

At the same time, the G5 tower is a unique tower shape, and no special overhead ground wire lifting device matching the tower shape has been found so far. Replacing with other complex methods is not only time-consuming, inefficient, but also poor in safety.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a G5 tower-shaped overhead ground wire lifter, which greatly reduces the on-site workload of replacing the G5 tower-shaped overhead ground wire connection fittings, reduces the number of operators, and saves The physical strength of the operators reduces the working time and improves the work efficiency.

In order to achieve the above object, the technical scheme that the utility model takes is:

A G5 tower-shaped overhead ground wire lifter, which includes a lifting rod, a nut, and a bracket, and a through groove is provided at the lower end of the lifting rod, and the corresponding positions of the lifting rods on both sides of the through groove are provided. There is a mounting hole, the bracket is sleeved on the lifting rod, the nut is threaded with the lifting rod, and the bracket is located between the nut and the through groove.

The utility model also provides a device that adopts the above-mentioned G5 tower-shaped overhead ground wire lifter to realize the replacement of the overhead ground wire connecting hardware replacement device, which includes an overhead ground wire bracket parallel to the ground wire, and the overhead ground wire bracket passes through the connecting hardware Connected with the ground wire, the connecting hardware replacement device also includes a G5 tower-shaped overhead ground wire lifter, the lower end of the lifting rod passes through the overhead ground wire bracket and is fixed to the ground wire, and the bracket is clamped on the overhead ground wire bracket.

The ground wire passes through the through groove, and the mounting holes are connected by bolts.

A shackle for the ground wire to pass through is fixedly connected to the mounting hole.

Compared with the prior art, the utility model has the beneficial effects of:

1. The utility model has simple structure and convenient operation, which greatly reduces the on-site workload of replacing the G5 tower-type overhead ground wire connection fittings, reduces the number of operators, saves the physical strength of the operators, reduces the working time, and improves the work efficiency.

2. The two lifting rods are used at the same time, which serve as backup protection for each other, and the safety is greatly improved.

Description of drawings

Fig. 1 is the structural representation of the utility model G5 tower-shaped overhead ground wire lifter;

Fig. 2 is a structural schematic diagram of the utility model overhead ground wire connection hardware replacement device.

Description of reference signs: 1. Lifting rod; 11. Through groove; 2. Nut; 3. Bracket; 4. Bolt; 5. Shackle; 6. Ground wire; 7. Connecting hardware;

detailed description

The utility model will be further described below in conjunction with specific embodiments.

Please refer to Figure 1, a G5 tower-shaped overhead ground wire lifter, which includes a lifting rod 1, a nut 2, and a bracket 3, and a through groove 11 is set at the lower end of the lifting rod 1, and the two through grooves 11 Mounting holes are provided at the corresponding positions of the lifting rod 1 on the side, the bracket 3 is sleeved on the lifting rod 1, and the nut 2 is threadedly connected with the lifting rod 1.

The bracket 3 is made of channel steel, and its waist height*leg width*waist thickness is a concave structure of 55mm*145mm*5mm. Of course, the leg width of the bracket 3 should not be less than the width of the hanging point angle steel on the upper side of the overhead ground wire bracket. A circular hole with a diameter of 30mm is provided at the center of the bracket 3, through which the lifting rod 1 can pass. The lifting rod 1 is mainly a whole steel rod with a diameter of 28 mm. One end of the lifting rod 1 is provided with an external thread, and the nut 2 of the supporting steel material is 60 mm high. The lifting rod 1 and the nut 2 are connected by matching threads, and the horizontal rotation of the nut 2 is converted into the vertical movement of the lifting rod 1 . The through groove 11 is a rectangular groove with a width of 21mm arranged on the other end of the lifting rod 1. There are symmetrically distributed installation holes on the lifting rod 1 on both sides of the through groove 11. Among them, the installation holes on one side It can be threaded, and the matching bolt can be screwed through the mounting hole.

One end of the connecting hardware 7 of the overhead ground wire is installed on the ground wire 6 , and the other end is installed on the overhead ground wire support 8 parallel to the ground wire 6 . Please refer to FIG. 2 for the replacement process of the connecting fitting 7 .

1. Clamp the bracket 3 on the hanging point angle steel of the overhead ground wire bracket 8, and extend the end of the lifting rod 1 with the through groove 11 through the overhead ground wire bracket 8 to the ground wire 6.

2. Fix the lifting rod 1 and the ground wire 6. For the ground wire with a small diameter, directly pass the through groove 11 through the ground wire 6, and then tighten the bolt 4 to clamp the ground wire 6 in the through groove 11 Inside, for the ground wire 6 with a larger diameter, when the through groove 11 is not enough to pass through the ground wire 6, the shackle 5 can be used to cooperate, directly pass the shackle 5 through the ground wire 6, and then the shackle 5 Mount to the mounting hole. In order to facilitate the replacement (disassembly) of the connecting fittings 7, two G5 tower-shaped overhead ground wire lifters can be used, which are located on both sides of the connecting fittings 7 respectively.

3. Tighten the nut 2 with a wrench, and the lifting rod 1 drives the ground wire 6 to lift until all the load of the ground wire 6 is transferred to the lifting rod 1, and then the connecting hardware can be loosened and replaced.

The above detailed description is a specific description of the feasible embodiment of the utility model. This embodiment is not used to limit the patent scope of the utility model. Any equivalent implementation or change that does not deviate from the utility model shall be included in this case within the scope of the patent.

Claims (4)

1. A G5 tower-shaped overhead ground wire lifter is characterized in that it comprises a lifting rod (1), a nut (2), a support (3), and a through hole is opened at the lower end of the lifting rod (1). Groove (11), the corresponding positions of the lifting rod (1) on both sides of the through groove (11) are provided with installation holes, the bracket (3) is sleeved on the lifting rod (1), and the nut ( 2) It is threadedly connected with the lifting rod (1), and the bracket (3) is located between the nut (2) and the through groove (11). 2. An overhead ground wire connection fitting replacement device, which includes an overhead ground wire support (8) parallel to the ground wire (6), and the overhead ground wire support (8) is connected to the ground wire (6) by connecting the fittings (7) and the ground wire (6). ) connection, it is characterized in that the connecting hardware replacement device further includes the G5 tower-shaped overhead ground wire lifter according to claim 1, and the lower end of the lifting rod (1) passes through the overhead ground wire support (8) and the ground The wire (6) is fixed, and the support (3) is stuck on the overhead ground wire support (8). 3. The replacement device for overhead ground wire connection fittings according to claim 2, characterized in that, the ground wire passes through the through groove (11), and the installation holes are connected by bolts (4). 4. The overhead ground wire connection hardware replacement device according to claim 2, characterized in that a shackle (5) for the ground wire (6) to pass through is fixedly connected to the installation hole.