CN205622178U - A cable fixing device for transmission line steel pipe pole - Google Patents

Abstract

The utility model discloses a cable fixing device for a steel pipe pole of a power transmission line, which comprises a clamp matched with the steel pipe pole and a cable fixing device for fixing the cable lead from the steel pipe pole. The steel plate, the horizontal steel plate and the extension bolt, the inner side of the top of the arc-shaped steel plate and the contact parts of the top inner side of the horizontal steel plate corresponding to the top of the arc-shaped steel plate and the steel pipe rod are respectively provided with a protective layer of the steel pipe rod through the adhesive, and the side of the horizontal steel plate facing away from the steel pipe rod The side is fixedly connected to one leg of the channel steel by bolts, and several cable fixing devices are fixedly connected to the other leg of the channel steel. Each cable fixing device has a round hole for the cable to pass through. The inner surface of the round hole is in contact with the cable. Set the cable protective layer at the position. The utility model can lead small cables to the ground along the shaft of the steel pipe pole. The device has a simple and compact structure and high connection strength, can prevent the anticorrosion layer of the steel pipe shaft and the outer surface of the cable from being worn, and prolong the service life of the steel pipe pole and the cable.

Description

Cable fixing devices for steel pipe poles of transmission lines

technical field

The utility model relates to electric power equipment, in particular to a cable fixing device for a steel pipe pole of a power transmission line.

Background technique

At present, in the transmission of high-voltage circuits, iron towers or steel pipe poles are used to erect cables in the sky. When the electric energy is transmitted to the destination, the cables erected in the sky are led down. The device occupies an important position. Considering the occupied area of the cable terminal iron tower and the complexity of construction, the cable terminal steel pipe pole is often used to lead the cable down.

Present transmission line steel pipe pole cable terminal pole generally comprises shaft, cross arm, cable terminal cap and the cable terminal head and lightning rod that are installed on the cable terminal cap. The cross arm is generally fixed on the pole body by bolts or U-shaped screws, and then the cable terminal cap and the cable terminal head are set on the cross arm to lead the high-voltage cable downward, but for some small cables, it is generally not necessary to set the cross arm, cable Auxiliary facilities such as terminal caps are directly led to the ground along the shaft of the steel pipe pole. For this kind of situation, there is no suitable cable fixing method. At the same time, the shaft of the cable terminal pole is generally galvanized to prevent corrosion. Using bolt connections or U-shaped screws to fix the cable downguide device to the steel pipe pole will destroy the surface anticorrosion layer of the steel pipe pole, affecting the service life and safety of the steel pipe pole.

Utility model content

The technical problem to be solved by the utility model is to provide a cable fixing device for steel pipe poles of power transmission lines, which can lead small cables to the ground along the steel pipe pole shaft. The wear of the anti-corrosion layer of the shaft and the wear of the outer surface of the cable prolong the service life of the steel pipe pole and the cable.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A cable fixing device for a steel pipe pole of a power transmission line, comprising a clamp matched with the steel pipe pole, and a cable fixing device for fixing the down-leading cables of the steel pipe pole. The clamp includes arc-shaped steel plates bent at both ends, horizontal The steel plate and the extension bolt, the inner side of the top of the arc-shaped steel plate and the contact part of the horizontal steel plate corresponding to the inner side of the top of the arc-shaped steel plate and the steel pipe rod are respectively provided with a protective layer of the steel pipe rod through the adhesive, and the side of the horizontal steel plate facing away from the steel pipe rod It is fixedly connected to one leg of the channel steel by bolts, and several cable fixing devices are fixedly connected to the other leg of the channel steel. Each cable fixing device is provided with a round hole for the cable to pass through. The inner surface of the round hole is in contact with the cable. The contact part is provided with a cable protective layer.

The further improvement of the technical solution of the utility model lies in that rib plates are provided at the bending places at both ends of the arc-shaped steel plate.

The further improvement of the technical solution of the utility model lies in that: the contact between the protective layer of the steel pipe rod and the shaft of the steel pipe rod is line contact or surface contact.

The further improvement of the technical solution of the utility model is that: the protective layer of the steel pipe rod is a structure in which three sides are straight lines and one side is a concave arc structure, and the arc-shaped concave point points to the inner side of the top of the arc-shaped steel plate or the horizontal steel plate, and the two ends of the arc are connected to the horizontal steel plate. Steel tube shafts form a line of contact.

The further improvement of the technical solution of the utility model lies in that the three sides of the protective layer of the steel pipe rod are straight lines and one side is a convex arc-shaped structure. touch.

The further improvement of the technical solution of the utility model is that: the binder is epoxy resin or silica gel.

The further improvement of the technical solution of the utility model lies in: the cable fixing device is an integrated plate, the round hole is set at the center of the integrated plate, and the integrated plate is connected with the channel steel through bolts or welding.

The further improvement of the technical solution of the utility model is that: the cable fixing device is a split plate, semicircular through holes are opened on the corresponding surfaces of the two split plates, and a round hole is formed after combination, and the split plate is connected with the channel steel through bolts.

The further improvement of the technical solution of the utility model lies in that: the protective layer of the steel pipe rod and the protective layer of the cable are made of rubber, and the thickness of the protective layer of the steel pipe rod and the protective layer of the cable is both 8-12mm.

The utility model provides a cable fixing device for a steel pipe pole of a power transmission line. The technical progress achieved by the utility model is:

The utility model forms the fixture of the steel pipe rod through the combined use of the circular arc section steel plate bent at both ends, the horizontal steel plate and the extension bolt, and the rib plate is set at the bending part of the circular arc section of the fixture, which can effectively prevent the deformation of the fixture and increase the distance between the fixture and the clamp. The connection strength of the steel pipe rod; at the same time, the steel pipe rod protective layer is set on the inner side of the top of the arc-shaped steel plate and the steel pipe rod, and the steel pipe rod protective layer is also set on the inner part of the top of the corresponding arc-shaped steel plate on the horizontal steel plate. The inner side of the top of the steel plate and the horizontal steel plate are connected by adhesive. The protective layer of the steel pipe pole can avoid damage to the galvanized layer of the steel pipe pole due to installation reasons or the self-weight of the fixture, channel steel and cable fixing device. To buffer the role, to prevent the formation of stress concentration area in the steel pipe rod shaft when tightening the clamp. In the further optimization scheme of the utility model, the contact between the protective layer of the steel pipe rod and the shaft of the steel pipe rod is designed as line contact or surface contact.

The utility model is suitable for leading small cables to the ground along the shaft of the steel pipe pole. If the cable fixing device is directly fixed and connected to the horizontal steel plate of the fixture, the force on the fixture is too large, and the connection is likely to be unreliable. Therefore, the utility model The channel steel is arranged between the clamp and the cable fixing device, which can strengthen the strength of the whole device.

The cable fixing device is an integrated or split plate, and the cable protective layer is set on the inner surface of the round hole of the down-leading cable and the contact part of the cable, which can reduce the wear on the outer surface of the cable and prolong the service life of the cable. At the same time, this device The structure is simple and compact, and the connection strength is high.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment 1;

Fig. 2 is the schematic diagram of the utility model embodiment 2;

Fig. 3 is the schematic diagram of the utility model embodiment 3;

Fig. 4 is a schematic structural diagram of a split cable fixing device;

Fig. 5 is a structural schematic diagram of an integrated cable fixing device;

Among them, 1. steel pipe pole, 2-1, arc-shaped steel plate, 2-2, horizontal steel plate, 3. extension bolt, 4. channel steel, 5. cable fixing device, 6. steel pipe pole protective layer, 7. cable protection layer, 8, ribs, 9, bolts.

detailed description

Below in conjunction with embodiment the utility model is described in further detail:

As shown in Figure 1, a cable fixing device for a steel pipe pole of a power transmission line includes a clamp matched with the steel pipe pole 1, and a cable fixing device 5 for fixing a steel pipe pole 1 leading down the cable, and the clamp includes two ends The curved arc-shaped steel plate 2-1, the horizontal steel plate 2-2 and the extension bolt 3, the length of the extension bolt 3 can be adjusted, and can adapt to steel pipe rods 1 of different diameters; A steel pipe rod protective layer 6 is set at the contact position of the steel pipe rod, and a steel pipe rod protective layer 6 is also set at the position inside the top of the corresponding arc-shaped steel plate 2-1 on the horizontal steel plate 2-2, and the steel pipe rod protective layer 6 is connected with the arc-shaped steel plate 2-1. The inner side of the top and the horizontal steel plate 2-2 are all connected by an adhesive, and the adhesive used can be epoxy resin, silica gel or universal glue, and the contact between the steel pipe rod protective layer 6 and the steel pipe rod 1 shaft is line contact or surface contact , which can avoid damage to the galvanized layer of the steel pipe rod due to installation reasons or the self-weight of the fixture, channel steel 4 and cable fixing device 5. At the same time, the steel pipe rod protection layer 6 also acts as a buffer to prevent the steel pipe rod from being damaged when the clamp is tightened. The body forms a stress concentration area; at the same time, ribs 8 are set at the bends at both ends of the arc section of the fixture, which can bear part of the force when tightening the extension bolt 3, effectively preventing the deformation of the fixture, and increasing the connection between the fixture and the steel pipe rod 1 strength.

The side of the horizontal steel plate 2-2 facing away from the steel pipe pole is fixedly connected to a leg of the channel steel 4 by bolts, and several cable fixing devices 5 are fixedly connected to the other leg of the channel steel 4. The cable fixing device 5 selected by the utility model The number of devices 5 is three, and the channel steel 4 and the cable fixing device 5 can be connected by bolts or welding. The utility model is suitable for small-sized cables leading to the ground along the steel pipe rod shaft. If the cable fixing device 5 is directly fixedly connected to the horizontal steel plate of the clamp, the force on the clamp is too large, and the connection is likely to be unreliable. Therefore, the utility model arranges channel steel between the clamp and the cable fixing device 5, and is fixedly connected by the bolt 9, which can strengthen the strength of the whole device and improve the stability.

The cable fixing device is an integrated or split plate. A round hole for passing the cable is set at the center of the plate. The diameter of the round hole is slightly larger than the diameter of the cable. The wear and tear on the outer surface of the cable prolongs the service life of the cable. At the same time, the device has a simple and compact structure, high connection strength and is easy to install. The protective layer of the steel pipe rod and the protective layer of the cable are made of rubber, and the thickness of the protective layer of the steel pipe rod and the protective layer of the cable is uniform. It is 8-12mm.

Example 1

During use, the steel pipe rod protective layer 6 is bonded to the inner side of the arc-shaped steel plate 2-1 top and the corresponding position of the horizontal steel plate 2-2 and the inner side of the arc-shaped steel plate 2-1 top with an adhesive. The bonding agent can be epoxy resin, silica gel or all-purpose glue. The steel pipe rod protective layer 6 is in line contact with the top inner side of the arc-shaped steel plate 2-1 and the corresponding contact parts between the horizontal steel plate 2-2 and the steel pipe rod 1. The steel pipe rod protective layer 6 It is a structure with straight lines on three sides and a concave arc on one side. The arc-shaped concave part corresponds to the inner side of the top of the arc-shaped steel plate 2-1 or the horizontal steel plate 2-2, and the two ends of the arc form line contact with the steel pipe pole 1. , as shown in Figure 1, use the extension bolt 3 to connect the two to realize the fixation of the clamp and the steel pipe rod 1, and then connect the side of the horizontal steel plate 2-2 facing away from the steel pipe rod 1 to one leg of the channel steel 4 through bolts Three cable fixing devices 5 are fixedly connected to the other leg of the channel steel 4, and the two are connected by bolts, and the cables are led down to the destination through the round hole on the cable fixing device 5, and at the same time, the round hole of the cable fixing device 5 A cable protective layer 7 is provided on the part where the inner surface contacts the cable. In this embodiment, the cable fixing device 5 is a split plate, as shown in FIG. 4 .

Example 2

A cable fixing device for a steel pipe pole of a power transmission line in this embodiment is basically the same in structure as in Embodiment 1, the difference being that the steel pipe pole protection layer 6 is a structure with straight lines on three sides and a convex arc on one side. The protruding part of the shape points to the shaft of the steel pipe rod, and the top of the arc forms a line contact with the shaft of the steel pipe rod, as shown in Figure 2.

Example 3

A cable fixing device for a steel pipe pole of a power transmission line in this embodiment, as shown in Figure 3, its structure is basically the same as in Embodiment 1, the difference is that the steel pipe pole protective layer 6 and the top of the arc-shaped steel plate 2-1 The inner and horizontal steel plates 2-2 and the corresponding contact parts of the steel pipe rod 1 are in surface contact, thereby increasing the contact area, fully exerting the buffering effect, and effectively relieving the formation of stress concentration areas on the steel pipe rod shaft and the plating of the pipe rod shaft when the clamp is tightened. The zinc layer is damaged.

Example 4

A cable fixing device for a steel pipe pole of a power transmission line in this embodiment is basically the same in structure as that of Embodiment 1, the difference being that the cable fixing device 5 is an integral plate, as shown in Figure 5, connected by welding On the channel steel 4, the device and the installation process are simplified while realizing the down-leading cable, and the cable is led down to the destination through the round hole on the cable fixing device 5. The diameter of the round hole on the cable fixing device 5 is slightly larger than the diameter of the cable, and at the same time The position where the inner surface of the round hole of the cable fixing device 5 contacts the cable is provided with a cable protective layer 7, which can protect the cable from abrasion on the outer surface of the cable.

Claims (9)

1. null1. the cable fixture for power transmission line steel pipe rod，It is characterized in that: include the fixture matched with steel pipe pole (1)，And under fixing steel pipe pole (1), draw the cable fixture (5) of cable，Described fixture includes the circular arc steel plate (2-1) of two ends bending、Horizontal steel plate (2-2) and Lengthened bolt (3)，The contact site of described circular arc steel plate (2-1) inside top and corresponding circular arc steel plate (2-1) inside top of horizontal steel plate (2-2) and steel pipe pole (1) is provided with steel pipe pole protective layer (6) by binding agent respectively，Described horizontal steel plate (2-2) is fixedly connected on (4) lower limbs of channel-section steel back to the side of steel pipe pole (1) by bolt (9)，Fixing several cable fixtures of connection (5) on described channel-section steel (4) another lower limb，Each cable fixture is equipped with, on (5), the circular hole that current supply cable passes，Circular hole interior surface arranges cable covering (7) with the position of conductive cable contacts.
2. Cable fixture for power transmission line steel pipe rod the most according to claim 1, it is characterised in that: described circular arc steel plate (2-1) two ends bending part is respectively provided with floor (8).
3. Cable fixture for power transmission line steel pipe rod the most according to claim 1, it is characterised in that: described steel pipe pole protective layer (6) contacts with rod body of steel pipe rod and contacts into linear contact lay or face.
4. 4. according to the cable fixture for power transmission line steel pipe rod described in claim 1 or 3; it is characterized in that: described steel pipe pole protective layer (6) is three structures being straight line one side and being indent arc; pointing to circular arc steel plate (2-1) inside top or horizontal steel plate (2-2) at its arc concave shape, the two ends of arc form linear contact lay with steel pipe pole (1) shaft.
5. 5. according to the cable fixture for power transmission line steel pipe rod described in claim 1 or 3; it is characterized in that: described steel pipe pole protective layer (6) is three structures being straight line one side and being outer convex; pointing to steel pipe pole (1) shaft at the evagination of its arc, the top of arc forms linear contact lay with steel pipe pole (1) shaft.
6. Cable fixture for power transmission line steel pipe rod the most according to claim 1, it is characterised in that: described binding agent is epoxy resin or silica gel.
7. Cable fixture for power transmission line steel pipe rod the most according to claim 1, it is characterized in that: described cable fixture (5) is integral type sheet material, circular hole is arranged at integral type sheet material center, and integral type sheet material is connected with channel-section steel (4) by bolt or welding manner.
8. Cable fixture for power transmission line steel pipe rod the most according to claim 1, it is characterized in that: described cable fixture (5) is split type sheet material, semi-circular through hole is offered on two corresponding of split type sheet materials, forming circular hole after combination, split type sheet material is connected with channel-section steel (4) by bolt.
9. Cable fixture for power transmission line steel pipe rod the most according to claim 1; it is characterized in that: described steel pipe pole protective layer (6) and cable covering (7) are quality of rubber materials, the thickness of steel pipe pole protective layer (6) and cable covering (7) is 8～12mm.