CN202127209U - Portable overhead ground wire lifter - Google Patents

Abstract

The utility model discloses a portable overhead ground wire lifter through which the problem that the existing overhead ground wire lifters of transmission lines are inconvenient for carrying and limited by the types of towers. The portable overhead ground wire lifter comprises a U-shaped bracket, a steel pipe, ratchet wrenches and steel wire ropes; a hook is arranged in the middle of the upper part of the U-shaped bracket; holes are arranged on baffles at two sides of the U-shaped bracket so as to fixedly connect two rolling bearings; the steel pipe horizontally penetrates through the two rolling bearings; the steel pipe between the baffles at the two sides of the U-shaped bracket is fixedly connected with two ratchet wrenches with regulators; small grooves are arranged at positions of the steel pipe close to two ends; the steel wire ropes penetrate through the steel pipe from the small grooves; and hooks are arranged at the tail ends of the steel wire ropes. The portable overhead ground wire lifter is not limited by the types of towers and can be suitable for various towers; the operation is time-saving, labor-saving, simple and convenient; the used ratchet wrenches are smaller in volume and light in weight, can be put in a tool kit for carryon and can be operated by a single person; the labor intensity and the safety risk are reduced; and the work efficiency is improved.

Description

Portable Overhead Ground Wire Riser

Technical field:

The utility model relates to a power transmission line maintenance tool, in particular to a load-bearing device for lifting overhead ground wires of a power transmission line.

current technology:

At present, the tools used to lift the overhead ground wire of the transmission line are more tools such as picker rod, hand chain chain hoist combination, DYQ12 type and DTG type overhead ground wire lifter. When using the hand-pull chain hoist combination tool to replace the suspension clamp of the overhead ground wire, due to the weight of the chain hoist itself and the length of the chain, etc., it is inconvenient to carry the upper and lower towers, and the safety risk of working above the live line is relatively high. The strength is also relatively high, and the operation efficiency is low; the DYQ12 type overhead ground wire lifter is easy to operate, relatively complicated in shape, heavy in itself, inconvenient to carry up and down the tower, and inconvenient to install on the tower, which increases the labor intensity and safety risks of live work , affecting work efficiency; DTG type overhead ground wire lifter has a relatively simple structure, beautiful appearance, relatively light weight, and easy operation, which can reduce the labor intensity of live work, safety risks and improve work efficiency, but it can only be used for self-supporting towers , cannot be used on concrete poles.

Invention content:

The purpose of the utility model is to provide a portable overhead ground wire lifter with a simple structure to overcome the shortcomings of the existing overhead ground wire hoist equipment for transmission lines, which are inconvenient to carry, limited by the type of pole tower, high safety risk, high labor intensity and low operating efficiency. , relatively light, easy to carry, easy to operate.

The utility model is characterized in that it includes a U-shaped bracket, a steel pipe, a ratchet wrench, and a steel wire rope. A hook is arranged in the middle of the upper part of the U-shaped bracket, and two rolling bearings are fixedly connected to the baffles on both sides of the U-shaped bracket. The steel pipe passes through it horizontally. Two rolling bearings; the steel pipe between the baffles on both sides of the U-shaped bracket is fixedly connected with two ratchet wrenches with regulators, and there is a small rope outlet groove at the position near the two ends of the steel pipe, and the steel wire rope passes through the steel pipe through the small rope outlet groove; There is a hook at the end of the wire rope.

The small rope outlet groove is polished smoothly.

Both ends of the steel pipe are provided with fixing nuts and parallel caps.

Described hook has anti-lock hook.

As mentioned above, the utility model adopts a ratchet wrench to replace the traditional force-bearing lifting tool in order to facilitate carrying and reduce the range of live work in the process of going up and down the pole tower. The ratchet wrench is equipped with a regulator, which can not only lift the overhead ground wire, but also The overhead ground wire can be lowered by flipping 180 degrees through the regulator; in order to ensure that the overhead ground wire only rises and does not fall back effectively when the ratchet wrench is turned each time, two ratchet wrenches are set. When one ratchet wrench is turned, the other ratchet wrench Anti-locking can effectively control the downward gravity of the overhead ground wire itself, and prevent the ratchet wrench from turning with the middle steel pipe shaft to cause the overhead ground wire to fall back; To prevent the resistance between the baffles and steel pipes on the left and right sides of the U-shaped bracket, a rolling bearing is respectively welded; in order to prevent the overhead ground wire from slipping out of the hook when it is lifted under force, the hook is equipped with an anti-lock hook; in order to ensure that the lifting wire rope It has sufficient strength, and at the same time plays a role of secondary protection for the hoisted overhead ground wire. Both ends of the steel wire rope are equipped with hooks, and the overhead ground wire is lifted in the form of double hanging points; in order to reduce the force between the steel wire rope and the steel pipe. In order to reduce the friction of the steel wire rope and prolong the service life, the two outlet grooves where the steel pipe passes through the steel wire rope are polished and smooth; in order to prevent the tightened steel wire rope from slipping off the steel pipe, fixed nuts and union caps are set at both ends of the steel pipe.

Working principle: Use the double hanging point wire rope hook to hook the overhead ground wire of the transmission line, and tighten the wire rope by turning the handle of the ratchet wrench to lift the overhead ground wire upward.

The beneficial effect of the utility model: it is not limited by the type of pole tower, and can be applied to various pole towers; it saves time and effort in operation, and is easy to operate; the ratchet wrench used is small in size and light in weight, and can be put into a tool bag for easy carrying , and can be operated by a single person; after repeated field tests and improvement and optimization, it can reduce labor intensity, safety risks and improve work efficiency.

Description of drawings:

Fig. 1 is a structural diagram of the utility model.

Fig. 2 is a side view of the connection between the U-shaped bracket and the steel pipe of the utility model.

Fig. 3 is a side view of the connection between the ratchet wrench of the present invention and the steel pipe. .

In the figure, 1. Hook, 2. U-shaped bracket, 3. Rolling bearing, 4. Fixed nut, 5. Combined cap, 6. Steel pipe, 7. Small groove for the rope, 8. Steel wire rope, 9. Hook, 10. Anti-lock hook, 11. ratchet wrench, 12. regulator.

Detailed ways:

As shown in Figure 1, the utility model comprises U-shaped support 2, steel pipe 6, ratchet wrench 11, steel wire rope 8, suspension hook 1 is set in the middle of the top of U-shaped support 2, so that hang on the crossarm of utility pole.

The baffles on both sides of the U-shaped bracket 2 are perforated and fixedly connected to the two rolling bearings 3, and the steel pipe 6 passes through the two rolling bearings 3 horizontally; The wrench 11 has a small groove 7 near the two ends of the steel pipe 6, and the steel wire 8 passes through the steel pipe 6 from the small groove 7; the end of the steel wire 8 is provided with a hook 9.

The ratchet wrench 11 has an adjuster 12, and when one ratchet wrench 11 is turned, the other ratchet wrench 11 is locked.

The small rope outlet groove 7 is polished smooth to reduce the wear of the steel wire rope 8.

The two ends of the steel pipe 6 are provided with fixed nuts 4 and parallel caps 5 to prevent the steel wire rope 8 wound on the steel pipe 6 from slipping.

The hook 9 is provided with an anti-lock hook 10 to prevent the overhead ground wire from slipping out of the hook when it is lifted under force.

Claims (4)

1. A portable overhead ground wire lifter, characterized in that it comprises U-shaped support (2), steel pipe (6), ratchet wrench (11), steel wire rope (8), and is arranged in the middle of the upper part of U-shaped support (2) The hook (1) is punched and fixedly connected to the two rolling bearings (3) on both side baffles of the U-shaped bracket (2), and the steel pipe (6) passes through the two rolling bearings (3) horizontally; The steel pipe (6) between the plates is fixedly connected with two ratchet wrenches (11) with regulators (12), and there is a small groove (7) at the position near the two ends of the steel pipe (6), and the steel wire rope (8) passes through the outlet The small rope groove (7) passes through the steel pipe (6); the end of the steel wire rope (8) is provided with a hook (9). 2. The portable overhead ground wire lifter as claimed in claim 1, characterized in that the two small rope outlet grooves (7) are polished smoothly. 3. The portable overhead ground wire lifter according to claim 1, characterized in that the two ends of the steel pipe (6) are provided with fixing nuts (4) and parallel caps (5). 4. The portable overhead ground wire lifter according to claim 1, characterized in that said hook (9) has an anti-lock hook (10).

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