Wire cross arm structure

Abstract

The utility model discloses a wire cross arm structure, which relates to the technical field of cross arms and comprises angle iron, a pre-clamping assembly, a bidirectional screw and a U-shaped bolt. Two pre-clamping assemblies are arranged on the two sides of the angle iron in a relatively sliding mode, a two-way screw is rotationally arranged on the lower surface of the inner side of the middle of the angle iron and drives the two pre-clamping assemblies to slide relatively, and a U-shaped bolt is installed between the two pre-clamping assemblies. The utility model has the advantages that the telegraph pole can be clamped directly by rotating the two-way bolt from the front side, so that the cross arm is fixed on the telegraph pole, and the U-shaped bolt is additionally arranged to further reinforce and fix, so that the fixation is firmer; although the cross arm device is relatively more in structure, compared with an existing structure, the cross arm device is more labor-saving, more convenient to install and higher in safety from the angle of installation.

Description

Technical Field:

[0001] The utility model relates to the technical field of cross arms, and specifically relates to a conductor cross arm structure. Background Art:

[0002] The cross arm, as the angle iron horizontally fixed at the top of the electric pole, its function is to support the overhead electric wire. However, the problems existing in the cross arm cannot be ignored. First of all, the cross arm may become shaky due to rust. Especially in old residential areas, some cross arms are severely rusted and may become shaky when blown by strong winds, posing a safety hazard to pedestrians and surrounding buildings. Therefore, it is usually necessary to replace the rusty cross arms.

[0003] The existing cross arm includes: an angle iron, an M-shaped gasket and a U-shaped bolt. During the process of replacing the new cross arm, usually a person carries the cross arm and climbs along the electric pole to the top of the pole, then sets the cross arm from the top downwards, and then tightens the U-shaped bolt. Since the cross arm is heavy and working at high altitude is already dangerous, therefore, during the installation process of this structure, either it is fixed after being set from the top of the pole; or the U-shaped bolt is removed first, one hand holds the angle iron, and the other hand holds the U-shaped bolt and passes it over the electric pole to find the insertion hole on the angle iron and insert it for fixation, both of which are not very convenient and have relatively high risks.

[0004] Therefore, in order to reduce the risks during the replacement process, a new cross arm structure is proposed. Content of the Utility Model:

[0005] The purpose of the utility model is to provide a conductor cross arm structure to solve the problems put forward in the above background art.

[0006] The utility model is implemented by the following technical solutions:

[0007] A conductor cross arm structure includes an angle iron, a pre-clamping assembly, a bidirectional screw rod and a U-shaped bolt; two pre-clamping assemblies are relatively slidably arranged on both sides of the angle iron, a bidirectional screw rod is rotatably arranged on the inner lower surface of the middle part of the angle iron, the bidirectional screw rod drives the two pre-clamping assemblies to slide relatively, and a U-shaped bolt is installed between the two pre-clamping assemblies.

[0008] Preferably, symmetrically arranged sliding grooves are opened on both sides of the middle part of the vertical surface of the angle iron, the pre-clamping assemblies slide in the sliding grooves, and two supporting plates are symmetrically fixed on the angle iron between the two sliding grooves, and the bidirectional screw rod is rotatably arranged on the two supporting plates.

[0009] Preferably, the pre-clamping assembly includes a limiting plate with an "L" - shaped structure, an arc-shaped clamping plate, and an elastic gasket with an "∠" - shaped structure; the limiting plate and the elastic gasket are respectively located on two surfaces of the vertical side wall of the angle iron and are in sliding contact; threaded holes and through holes are respectively formed at both ends of the limiting plate and are perpendicular to each other. One end of the threaded hole of the limiting plate is threadedly connected to one end of the bidirectional screw. One end of the arc-shaped clamping plate is fixed to the surface of the limiting plate near the through hole. A groove is formed at the other end of the arc-shaped clamping plate. The part of the arc-shaped clamping plate near the groove has a curvature. One side surface of the arc-shaped clamping plate near the limiting plate is fixed to one end of the elastic gasket. The elastic gasket is close to the bidirectional screw, and the other end of the elastic gasket elastically abuts against the surface of the utility pole.

[0010] Preferably, a connecting rod with a regular hexagon structure is provided in the middle of the bidirectional screw.

[0011] Preferably, both ends of the U - shaped bolt pass through the chute and the through hole in sequence and are fixed to the utility pole through nuts.

[0012] Advantages of the present utility model: The utility pole can be directly clamped by rotating the bidirectional bolt from the front, so that the cross arm is fixed on the utility pole. Then, the U - shaped bolt is additionally installed to further strengthen the fixation, making the fixation more firm; Although the structure of this cross - arm device is relatively complex, compared with the existing structure, from the perspective of installation, it is more labor - saving, more convenient to install, and has higher safety. Description of the drawings:

[0013] Figure 1 is a schematic diagram of the prior - art structure;

[0014] Figure 2 is the schematic structure of the present utility model Figure 1 ;

[0015] Figure 3 is the schematic structure of the present utility model Figure 2 ;

[0016] Figure 4 is Figure 3 a partial cross - sectional view in the upward - looking direction;

[0017] Figure 5 is a schematic diagram of the angle iron structure;

[0018] Figure 6 is a schematic diagram of the structure of the pre - clamping assembly;

[0019] Figure 7 is a schematic diagram of the structure of the bidirectional screw.

[0020] In the figure: 1. Angle iron, 1.1. Slide groove, 1.2. Support plate, 2. Pre-clamping assembly, 2.1. Limit plate, 2.11. Threaded hole, 2.12. Through hole, 2.2. Arc-shaped clamping plate, 2.21. Groove, 2.3. Elastic gasket, 3. Bi-directional screw, 3.1. Connecting rod, 4. U-shaped bolt. Specific implementation mode:

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Please refer to Figure 1-7 , the present invention provides a technical solution for a conductor cross arm structure:

[0023] A conductor cross arm structure includes an angle iron 1, a pre-clamping assembly 2, a bi-directional screw 3 and a U-shaped bolt 4; two pre-clamping assemblies 2 are relatively slidably arranged on both sides of the angle iron 1, and a bi-directional screw 3 is rotatably arranged on the lower surface of the inner side of the middle part of the angle iron 1. The bi-directional screw 3 drives the two pre-clamping assemblies 2 to slide relatively, and a U-shaped bolt 4 is installed between the two pre-clamping assemblies 2.

[0024] On both sides of the middle part of the vertical surface of the angle iron 1, slide grooves 1.1 are symmetrically opened. The pre-clamping assembly 2 slides in the slide grooves 1.1. Two support plates 1.2 are symmetrically fixed on the angle iron 1 between the two slide grooves 1.1, and the bi-directional screw 3 is rotatably arranged on the two support plates 1.2.

[0025] The pre-clamping assembly 2 includes a limit plate 2.1 with an "L" shape, an arc-shaped clamping plate 2.2 and an elastic gasket 2.3 with an "∠" shape; the limit plate 2.1 and the elastic gasket 2.3 are respectively located on the two surfaces of the vertical side wall of the angle iron 1 and are in sliding contact; threaded holes 2.11 and through holes 2.12 are respectively opened at both ends of the limit plate 2.1 and are perpendicular to each other. The threaded hole 2.11 of the limit plate 2.1 is threadedly connected to one end of the bi-directional screw 3. One end of the arc-shaped clamping plate 2.2 is fixed to the surface of the limit plate 2.1 close to the through hole 2.12. A groove 2.21 is opened at the other end of the arc-shaped clamping plate 2.2. The part of the arc-shaped clamping plate 2.2 close to the groove 2.21 has a radian. One side surface of the arc-shaped clamping plate 2.2 close to the limit plate 2.1 is fixed to one end of the elastic gasket 2.3. The elastic gasket 2.3 is close to the bi-directional screw 3, and the other end of the elastic gasket 2.3 elastically abuts against the surface of the electric pole.

[0026] A connecting rod 3.1 with a regular hexagon structure is provided in the middle of the bi-directional screw 3 for clamping with a wrench to achieve clamping.

[0027] Both ends of the U-bolt 4 pass through the chute 1.1 and the through-hole 2.12 in sequence and are fixed on the electric pole by nuts.

[0028] The working principle is as follows: During the process of replacing the cross arm, first rotate the bidirectional bolt 3 to adjust the distance between the two arc-shaped clamping plates 2.2 outwards so that the two arc-shaped clamping plates 2.2 can be clamped on both sides of the electric pole from the front. Subsequently, the worker climbs to the designated height according to the installation requirements and can directly clamp the two arc-shaped clamping plates 2.2 on both sides of the electric pole. Then, rotate the bidirectional bolt 3 to adjust the distance between the two arc-shaped clamping plates 2.2 inwards, so that the two arc-shaped clamping plates 2.2 firmly clamp the electric pole. At the same time, the two elastic gaskets 2.3 will further clamp and fit on the surface of the electric pole. At this time, the preliminary clamping is completed, and the cross arm can be basically fixed on the electric pole.

[0029] In order to avoid falling caused by strong wind interference, at this time, there is no need to support the cross arm. The U-bolt 4 can be directly sleeved over the electric pole and passed through the through-hole 2.12 on the limit plate 2.1 and fixed by screwing with bolts.

[0030] Although the structure of this cross arm device is relatively complex, compared with the existing structure, from the perspective of installation, it will be more labor-saving, more convenient to install, and have higher safety.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conductor cross arm structure, characterized in that: The invention comprises an angle iron (1), a pre-clamping assembly (2), a bidirectional screw rod (3) and a U-shaped bolt (4); two pre-clamping assemblies (2) are arranged on both sides of the angle iron (1) for relative sliding, a bidirectional screw rod (3) is rotatably arranged on the lower surface of the inner side of the middle part of the angle iron (1), the bidirectional screw rod (3) drives the two pre-clamping assemblies (2) to slide relative to each other, and a U-shaped bolt (4) is installed between the two pre-clamping assemblies (2).

2. A conductor cross arm structure according to claim 1, characterized in that: Slide grooves (1.1) are symmetrically provided on both sides of the middle of the vertical surface of the angle iron (1), the pre-clamping assembly (2) slides in the slide grooves (1.1), the angle iron (1) is located between the two slide grooves (1.1) and two support plates (1.2) are symmetrically fixed, and the bidirectional screw (3) is rotatably arranged on the two support plates (1.2).

3. A conductor cross arm structure according to claim 2, characterized in that: The pre-clamping assembly (2) comprises a limit plate (2.1) in an "L"-shaped structure, an arc-shaped clamping plate (2.2) and an elastic gasket (2.3) in an "∠"-shaped structure; the limit plate (2.1) and the elastic gasket (2.3) are respectively located on two surfaces of the vertical side wall of the angle iron (1) and are slidably fitted; threaded holes (2.11) and through holes (2.12) are respectively provided at two ends of the limit plate (2.1) and are perpendicular to each other; the threaded hole (2.11) of the limit plate (2.1) is threadedly connected to one end of the bidirectional screw (3); the arc-shaped clamping plate (2.2) is threadedly connected to one end of the bidirectional screw (3); and the arc-shaped clamping plate (2.1) is threadedly connected to the two ends of the bidirectional screw (3). One end of the clamping plate (2.2) is fixed to one end surface of the limiting plate (2.1) close to the through hole (2.12); the other end of the arc clamping plate (2.2) is provided with a groove (2.21); the portion of the arc clamping plate (2.2) close to the groove (2.21) is curved; one side surface of the arc clamping plate (2.2) close to the limiting plate (2.1) is fixed to one end of an elastic gasket (2.3); the elastic gasket (2.3) is close to the bidirectional screw rod (3); the other end of the elastic gasket (2.3) elastically abuts against the surface of the electric pole.

4. A conductor cross arm structure according to claim 3, characterized in that: A connecting rod (3.1) with a regular hexagonal structure is provided in the middle of the bidirectional screw (3).

5. A conductor cross arm structure according to claim 3, characterized in that: The two ends of the U-shaped bolt (4) pass through the slide groove (1.1) and the through hole (2.12) in sequence and are fixed on the electric pole via nuts.

Images