Adjustable overhead ground wire lifting lead screw

Abstract

The utility model discloses an adjustable overhead ground wire lifting screw rod which comprises a lifting device and two cross arm side fixtures arranged on the lifting device, and the lifting device is erected between two tangent tower ground wire cross arm hanging point angle irons through the two cross arm side fixtures. The lifting device comprises a lead screw body located between the two tangent tower ground wire cross arm hanging point angle irons and a fixed cylinder base arranged on the surface of the lead screw body in a sleeving mode and located at the tops of the two tangent tower ground wire cross arm hanging point angle irons. The overhead ground wire lifting screw rod composed of the cross arm side clamp and the lifting device can be firmly fixed on the tangent tower ground wire cross arm hanging point angle iron, the original structure does not need to be damaged, the installation is simple, convenient and rapid, and then the overhead ground wire can be vertically lifted by rotating the screw rod. The tool is simple in structure, convenient to use, convenient to operate and capable of being completed by one person instead of 5-7 persons in the past, and operation time is remarkably shortened.

Description

Technical Field

[0001] This utility model belongs to the field of overhead ground wire lifting technology, specifically relating to an adjustable overhead ground wire lifting screw. Background Technology

[0002] In power systems, overhead ground wires (also known as lightning protection wires) play a crucial role. They not only effectively prevent lightning from striking the conductors directly, but also reduce induced overvoltages in the lines, ensuring the safe and stable operation of the power system. However, due to the long-term exposure of high-voltage transmission lines to the outdoor environment, the hardware at the overhead ground wires is prone to corrosion and wear due to factors such as climate, terrain, and mechanical vibration. If not handled in time, it can lead to the ground wire falling off, causing serious accidents in the transmission lines, requiring maintenance or replacement. Especially at the crossarm attachment point of the ground wire on straight towers, the replacement of hardware often involves complex work processes and heavy tools, posing a great challenge to on-site work.

[0003] Currently, replacing overhead ground wire hardware involves 5-7 people using a combination of a short steel wire jack, a hand-operated hoist, a long steel wire jack, a U-shaped pulley, and an upward-facing trolley to lift the overhead ground wire and then replace the hardware. This method not only uses a large number of heavy tools and requires many workers, but the upward-facing pulley is also prone to deformation of the angle iron under stress, affecting work safety. Therefore, this utility model proposes an adjustable overhead ground wire lifting screw. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable overhead ground wire lifting screw to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable overhead ground wire lifting screw, comprising...

[0006] The lifting device includes a lifting device and two crossarm side clamps mounted on the lifting device. The lifting device is erected between the angle irons of the crossarms of the two straight tower ground wires via the two crossarm side clamps. The lifting device includes a screw body located between the angle irons of the crossarms of the two straight tower ground wires, a fixed cylinder seat sleeved on the surface of the screw body and located at the top of the angle irons of the crossarms of the two straight tower ground wires, and a nut seat rotatably mounted on the top of the fixed cylinder seat. The top end of the screw body extends through to the top of the nut seat and is threadedly connected to the nut seat. A bottom hanging ring is provided on the bottom surface of the screw body, and a U-shaped bottom hanger is installed at the bottom of the bottom hanging ring. Two connecting hanging plates are bolted to the bottom of the U-shaped bottom hanger, and a bottom support screw is fixed between the two connecting hanging plates relative to the bottom of the overhead ground wire.

[0007] An outer base sleeve is fixed to the surface of the nut seat, and a rocker arm is fixed to the side of the outer base sleeve.

[0008] Preferably, the U-shaped bottom bracket passes through the inside of the bottom hanging ring, and the bottom end of the U-shaped bottom bracket is fixed to the connecting hanging plate by bolts.

[0009] Preferably, the two crossarm side clamps are rotatably installed on both sides of the fixed cylinder seat, and the crossarm side clamps are hung on the top of the angle iron of the crossarm hanging point of the two straight tower ground wires.

[0010] Preferably, the bottom surface of the crossarm side clamp is provided with two top base blocks, and the bottom surface of the top base blocks is fixed with clamping feet, which are located inside the angle iron of the crossarm hanging point of the straight tower ground wire.

[0011] Preferably, the bottom surface of the crossarm side clamp is provided with an inner sliding groove, and two inner sliding thread seats are slidably arranged in the inner sliding groove. A threaded rod is fixed on the top surface of the top base block, and the top end of the threaded rod passes through to the top of the inner sliding thread seat and abuts against the inner wall of the top end of the inner sliding groove.

[0012] Preferably, the center of the internal sliding thread seat has a central threaded hole through which the threaded rod passes.

[0013] Preferably, side sliders are fixed on both sides of the inner sliding thread seat, and side slide channels are provided on both sides of the inner sliding groove, with the side sliders sliding in the side slide channels.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by designing an overhead ground wire lifting screw consisting of a crossarm side clamp and a lifting device, can be firmly fixed to the angle iron of the crossarm hanging point of the ground wire on the straight tower without damaging the original structure. The installation is simple and quick. Then, by rotating the screw, the overhead ground wire can be vertically lifted, which facilitates the quick replacement of the hardware at the overhead ground wire. The operation is simple, reducing the work that previously required 5 to 7 people to only 1 person, significantly shortening the operation time. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0018] Figure 4 This is a side sectional view of the crossarm side clamp of this utility model;

[0019] In the diagram: 1. Lead screw body; 2. Fixed cylinder seat; 3. Nut seat; 4. Handle; 5. Outer base sleeve; 6. Crossarm side clamp; 61. Clamping foot; 62. Top base block; 63. Inner sliding groove; 64. Inner sliding threaded seat; 65. Side sliding track; 66. Threaded rod; 7. Bottom hanging ring; 8. U-shaped bottom hanger; 9. Connecting hanging plate; 91. Bottom support screw; 10. Overhead ground wire; 11. Angle iron for crossarm hanging point of straight tower ground wire. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1 to 4 This is an embodiment of the present utility model, which provides a technical solution: an adjustable overhead ground wire lifting screw, comprising...

[0023] The lifting device includes a lifting device and two crossarm side clamps 6 mounted on the lifting device. The lifting device is supported between two straight tower ground wire crossarm hanging point angle irons 11 via the two crossarm side clamps 6. The lifting device includes a lead screw body 1 located between the two straight tower ground wire crossarm hanging point angle irons 11, a fixed cylinder seat 2 sleeved on the surface of the lead screw body 1 and located at the top of the two straight tower ground wire crossarm hanging point angle irons 11, and a nut seat 3 rotatably mounted on the top of the fixed cylinder seat 2, with the top end of the lead screw body 1 extending through to the top of the nut seat 3. It is threadedly connected to the nut seat 3. A bottom hanging ring 7 is provided on the bottom surface of the screw body 1, and a U-shaped bottom hanging piece 8 is installed at the bottom of the bottom hanging ring 7. Two connecting hanging plates 9 are bolted to the bottom of the U-shaped bottom hanging piece 8, and a bottom support screw 91 is fixed between the two connecting hanging plates 9 relative to the bottom of the overhead ground wire 10. This allows the screw body 1 to lift the overhead ground wire 10 through the bottom hanging ring 7, the U-shaped bottom hanging piece 8 and the connecting hanging plate 9. When the screw body 1 rises, it will lift the overhead ground wire 10.

[0024] An outer base sleeve 5 is fixed to the surface of the nut seat 3, and a crank handle 4 is welded to the side of the outer base sleeve 5, which makes it convenient for the operator to hold the crank handle 4 to rotate the nut seat 3. When the nut seat 3 rotates, the screw body 1 will move vertically in a straight line due to the action of the thread. The screw body 1 will then lift the overhead ground wire 10 through the bottom hanging ring 7, the U-shaped bottom hanging piece 8 and the connecting hanging plate 9. After the overhead ground wire 10 is lifted, it is convenient for the operator to replace the hardware at the overhead ground wire 10. The overall design is compact, the parts are lightweight and easy to carry to the work site, which greatly reduces the burden on the operators. The overhead ground wire 10 can be lifted by rotating the screw body 1. The operation is simple and quick, reducing the operation that previously required 5 to 7 people to only 1 person, which significantly shortens the operation time.

[0025] In this embodiment, preferably, the U-shaped bottom bracket 8 passes through the inside of the bottom hanging ring 7, and the bottom end of the U-shaped bottom bracket 8 is fixed to the connecting hanging plate 9 by bolts, so that the bottom hanging ring 7, the U-shaped bottom bracket 8 and the connecting hanging plate 9 can be connected together.

[0026] In this embodiment, preferably, the two crossarm side clamps 6 are rotatably installed on both sides of the fixed cylinder seat 2 via a rotating shaft, and the crossarm side clamps 6 are hung on the top of the angle iron 11 at the crossarm hanging point of the two straight tower ground wires.

[0027] In this embodiment, preferably, the bottom surface of the crossarm side clamp 6 is provided with two top base blocks 62, and the bottom surface of the top base block 62 is fixed with clamping feet 61. The clamping feet 61 are located inside the angle iron 11 of the crossarm hanging point of the straight tower ground wire, so that after the crossarm side clamp 6 is hung on the top of the angle iron 11 of the two crossarm hanging point of the straight tower ground wire, the two clamping feet 61 can limit the crossarm side clamp 6 to prevent the crossarm side clamp 6 from slipping and ensure the erection stability of the fixed cylinder seat 2. The bottom surface of the crossarm side clamp 6 is provided with an inner sliding groove 63, and two inner sliding thread seats 64 are slidably arranged in the inner sliding groove 63. A threaded rod 66 is welded and fixed to the top surface of the top base block 62, and the top end of the threaded rod 66 passes through to the top of the inner sliding thread seat 64 and is connected to the threaded rod 64. The inner wall of the top of the inner slide groove 63 is pressed tightly against the upper wall, which fixes the locking feet 61 and the top base block 62 during daily use. If the position of the two locking feet 61 needs to be adjusted later, simply rotate the locking feet 61 and the top base block 62 counterclockwise so that the top of the threaded rod 66 is no longer pressed against the upper wall of the inner slide groove 63. Then the inner sliding threaded seat 64 can slide in the inner slide groove 63 to change the position of the locking feet 61. After the locking feet 61 are adjusted to the appropriate position, tighten the threaded rod 66 clockwise again so that the threaded rod 66 is pressed against the upper wall of the inner slide groove 63. This completes the quick fixation after the position adjustment of the locking feet 61. The position and spacing of the two locking feet 61 can be adjusted adaptively according to the actual situation, improving the overall installation flexibility.

[0028] In this embodiment, preferably, a central threaded hole is provided at the center of the internal sliding threaded seat 64 for the threaded rod 66 to pass through, so that the threaded rod 66 can pass through smoothly and can be rotated smoothly.

[0029] In this embodiment, preferably, side sliders are fixed on both sides of the inner sliding thread seat 64, and side slides 65 are provided on both sides of the inner wall of the inner slide groove 63. The side sliders slide in the side slides 65, so that the inner sliding thread seat 64 can slide stably in the inner slide groove 63 without falling off.

[0030] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable overhead ground wire lifting lead screw, characterized by: The utility model relates to a lifting device and two cross arm side clamps (6) arranged on the lifting device, the lifting device is erected between two linear tower ground wire cross arm hanging point angle iron (11) through two cross arm side clamps (6), and the lifting device includes a lead screw body (1) between two linear tower ground wire cross arm hanging point angle iron (11), a fixed cylinder seat (2) sleeved on the surface of the lead screw body (1) and located at the top of two linear tower ground wire cross arm hanging point angle iron (11), a nut seat (3) rotatably installed at the top of the fixed cylinder seat (2), and the top end of the lead screw body (1) penetrates to the top of the nut seat (3) and is threadedly connected with the nut seat (3), the bottom end surface of the lead screw body (1) is provided with a bottom hanging ring (7), and the bottom of the bottom hanging ring (7) is provided with a U-shaped bottom hanging piece (8), the bottom of the U-shaped bottom hanging piece (8) is connected with two connecting hanging plates (9) through bolts, and the bottom support screw (91) is fixed between the two connecting hanging plates (9) relative to the bottom of the overhead ground wire (10). The surface of the nut seat (3) is fixed with an outer base sleeve (5), and the side surface of the outer base sleeve (5) is fixed with a rocking handle (4). The U-shaped bottom hanging piece (8) passes through the inside of the bottom hanging ring (7), and the bottom end of the U-shaped bottom hanging piece (8) is fixed between the connecting hanging plates (9) through bolts.

2. An adjustable overhead ground wire lifting lead screw as defined in claim 1 wherein: The two cross arm side clamps (6) are rotatably installed on the two sides of the fixed cylinder seat (2), and the cross arm side clamps (6) are hung at the top of two linear tower ground wire cross arm hanging point angle iron (11).

3. An adjustable overhead ground wire lifting lead screw as defined in claim 1 wherein: The bottom surface of the cross arm side clamps (6) is provided with two top base blocks (62), and the bottom surface of the top base blocks (62) is fixed with clamping feet (61), and the clamping feet (61) are located on the inside of the linear tower ground wire cross arm hanging point angle iron (11).

4. An adjustable overhead ground wire lifting lead screw as defined in claim 3 wherein: The bottom surface of the cross arm side clamps (6) is provided with an inner sliding groove (63), two inner sliding threaded seats (64) are slidably arranged in the inner sliding groove (63), the top surface of the top base blocks (62) is fixed with threaded rods (66), and the top end of the threaded rods (66) penetrates to the top of the inner sliding threaded seats (64) and abuts against the top end inner wall of the inner sliding groove (63).

5. An adjustable overhead ground wire lifting lead screw as defined in claim 4 wherein: A central threaded hole is formed through the center of the inner sliding threaded seats (64) for the threaded rods (66) to pass through.

6. An adjustable overhead ground wire lifting lead screw as defined in claim 5 wherein: The side surfaces of the inner sliding threaded seats (64) are both fixed with side sliding blocks, and the side inner walls of the inner sliding groove (63) are both provided with side sliding channels (65), and the side sliding blocks slide in the side sliding channels (65).

7. An adjustable overhead ground wire lifting lead screw as defined in claim 5 wherein: ​

Images