CN218158449U

CN218158449U - Lead wire clamp for OPGW tower

Info

Publication number: CN218158449U
Application number: CN202222370963.3U
Authority: CN
Inventors: 汪小霞
Original assignee: Guangdong Hengweitong Power Technology Co ltd
Current assignee: Guangdong Hengweitong Power Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-27
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a OPGW is downlead presss from both sides for tower, this downlead press from both sides aim at solving the rubber splint of the downlead clamp of prior art and age easily, make the optical cable downlead drop off from the rubber splint groove, probably arouse the circuit tripping operation at any time, endanger the problem of electric wire netting safety. The downlead clamp comprises an L-shaped fixing frame; the left end of the L-shaped fixing frame is fixedly connected with a down-leading support, two down-leading iron corrugated sheets are arranged on two sides of the down-leading support and fixedly connected with the down-leading support through fasteners, an arc groove is formed in the right side of each down-leading iron corrugated sheet, and the left end of the down-leading support inclines upwards. This downlead presss from both sides replaces traditional rubber core through two downlead iron corrugated sheets, has avoided the ageing harmful effects that brings of rubber, and secondly the arc groove on the downlead iron corrugated sheet more can firmly hold the cable, and welded U-shaped support can effectively improve self and prevent wind the performance to avoid the optical cable to drop, improve the security of electric wire netting.

Description

Lead wire clamp for OPGW tower

Technical Field

The utility model belongs to the technical field of electric power installation engineering, concretely relates to OPGW is downlead clamp for tower.

Background

The pulling-down clamp for the OPGW tower is mainly used for fixing and mounting the OPGW optical cable when the OPGW optical cable is led on the tower. For example, at the cable joint tower, the optical cable is led from the clamping hardware to the fixing function of the installation position of the splicing protection box; the optical cable is led down from the tower to an underground pipeline, a cable trench and a direct burial, and is led down to enter a machine room and the like for fixing. Meanwhile, the optical cable is prevented from being damaged due to friction with a tower or other objects under the action of wind power, so that the safety of the optical cable is protected.

At present, a U-shaped clamp with a fastening bolt is mostly adopted to fix an optical cable down lead on an iron tower by an installation wire clamp of an OPGW (optical fiber composite overhead ground wire) of a 220kV transmission line tower, two rubber clamping plates are adopted to fix the optical cable down lead, the rubber can also play a role in fixing when the rubber is not aged in the initial installation period, the rubber wire clamp is aged and falls off due to factors such as wind, sunshine, rain, temperature change and the like for a long time, the optical cable down lead falls off from a rubber clamping plate groove, and the distance between the optical cable down lead and a lead is reduced after the optical cable down lead falls off from an overhead ground wire through the tower, and the line tripping can be caused at any time due to wind-blowing vibration, so that the safety of a power grid is threatened.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

An object of the utility model is to prior art not enough, the utility model is to provide a OPGW is downlead presss from both sides for tower, and this downlead presss from both sides the rubber splint that aims at solving the downlead under the prior art and ages easily, makes the optical cable downlead drop off from the rubber splint groove, probably arouses the circuit tripping operation at any time, endangers the technical problem of electric wire netting safety.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a draw-off clamp for an OPGW tower, which comprises an L-shaped fixing frame; the left end of the L-shaped fixing frame is fixedly connected with a down-leading support, two down-leading iron corrugated sheets are arranged on two sides of the down-leading support and fixedly connected with the down-leading support through fasteners, an arc groove is formed in the right side of each down-leading iron corrugated sheet, the traditional rubber core is replaced by the down-leading iron corrugated sheets, the phenomenon that a rubber wire clamp is aged and falls off due to factors such as long-time wind, sunshine, rain and temperature change is avoided, an optical cable down lead falls off from the rubber clamping plate groove, the left end of the down-leading support inclines upwards, a plurality of adjusting holes are formed in the down-leading support, a down-leading gasket is fixedly connected to the left end of the L-shaped fixing frame, U-shaped supports are welded to the front side and the rear side of the L-shaped fixing frame and the down-leading gasket, friction force between the L-shaped fixing frame and an angle iron tower angle iron is greatly increased, unstable clamping caused by over-small friction force is avoided, and a fixing assembly is arranged on the down-leading gasket.

When the leading-down wire clamp of the technical scheme is used, the right end of the L-shaped fixing frame is clamped on the angle steel, then the fastening screw is rotated to enable the hot-galvanized bowl pad to move rightwards to be pressed on the angle steel, then the adjusting nut is screwed up to be in contact with the leading-down gasket, the fastening screw is prevented from loosening, then the adjusting hole in the leading-down bracket is selected according to actual distance requirements, then the hexagonal full-tooth bolt penetrates through the leading-down iron corrugated sheet, the adjusting hole and the spring gasket and is in threaded connection with the nut, and finally the nut is screwed up to clamp the OPGW optical cable through the arc groove on the right side of the leading-down iron corrugated sheet.

Preferably, the left end of the down-guiding bracket inclines upwards by 30 degrees, and the down-guiding bracket and the L-shaped fixing frame are integrally bent and formed, so that the inclination of 30 degrees better conforms to the actual height and stress of the OPGW optical cable drawn down from high altitude.

Further, the fastener includes the full tooth bolt of hexagonal, spring gasket and nut, the full tooth bolt of hexagonal runs through and draws down iron corrugated sheet, regulation hole and spring gasket and with nut threaded connection, set up like this and screw up the nut and can the chucking OPGW optical cable through drawing down the arc groove on iron corrugated sheet right side.

Furthermore, the fixing component comprises a fastening screw and a hot galvanizing bowl pad, the right end of the fastening screw penetrates through the down-leading gasket and is fixedly connected with the hot galvanizing bowl pad, the fastening screw is in threaded connection with the down-leading gasket, the fastening screw is matched with the welded down-leading gasket to enable the fixing component and the optical cable communication iron tower to form a three-point stress state, and the situation that the down-leading wire pulls the down-leading wire clamp structure askew due to the two-point stress is avoided.

Furthermore, the outer surface of the fastening screw is in threaded connection with an adjusting nut, the adjusting nut is located on the left side of the down-leading gasket, and the adjusting nut is screwed up to be in contact with the down-leading gasket, so that loosening of the fastening screw is avoided.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model clamps the angle steel through the right end of the L-shaped fixing frame, the down-leading bracket inclined by 30 degrees is fixed with the L-shaped fixing frame, thus more meeting the actual height and stress of the OPGW optical cable drawn down from high altitude, and the down-leading bracket with a plurality of adjusting holes ensures that the distance between the optical cable and the angle steel is more adjustable;

2. the utility model discloses a downlead presss from both sides replaces traditional rubber core through two downlead iron corrugated sheets, has avoided the ageing harmful effects who brings of rubber, and secondly the arc groove on the downlead iron corrugated sheet more can firmly hold the cable, and L shape mount and the front and back both sides of downlead gasket have all welded the U-shaped support, can effectively improve self and prevent wind the performance to avoid the optical cable to drop, improve the security of electric wire netting.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the apparatus of the present invention;

FIG. 2 is a schematic front view of an embodiment of the apparatus of the present invention;

FIG. 3 is a schematic structural view of a U-shaped bracket according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a fastener according to an embodiment of the present invention.

The labels in the figures are: 1. an L-shaped fixing frame; 2. leading down the bracket; 3. leading down iron corrugated sheets; 4. a fastener; 5. an arc groove; 6. an adjustment hole; 7. leading down the gasket; 8. a U-shaped bracket; 9. a fixing assembly; 401. a hexagonal full-tooth bolt; 402. a spring washer; 403. a nut; 901. a fastening screw; 902. hot galvanizing a bowl mat; 903. and adjusting the nut.

Detailed Description

The specific embodiment is a down lead clamp for an OPGW tower, the structural schematic diagram of which is shown in fig. 1-4, the down lead clamp includes an L-shaped fixing frame 1; the left end of the L-shaped fixing frame 1 is fixedly connected with a lower guide support 2, two lower guide iron corrugated sheets 3 are arranged on two sides of the lower guide support 2, the lower guide iron corrugated sheets 3 are fixedly connected with the lower guide support 2 through fasteners 4, an arc groove 5 is arranged on the right side of each lower guide iron corrugated sheet 3, the left end of each lower guide support 2 inclines upwards, a plurality of adjusting holes 6 are formed in each lower guide support 2, a lower guide gasket 7 is fixedly connected with the left end of the L-shaped fixing frame 1, U-shaped supports 8 are welded on the front side and the rear side of each L-shaped fixing frame 1 and each lower guide gasket 7, and a fixing assembly 9 is arranged on each lower guide gasket 7.

For the present embodiment, the model and specification of the L-shaped fixing frame 1 can be set as required.

Wherein, the left end of the down-leading support 2 inclines upwards by 30 degrees, and the down-leading support 2 and the L-shaped fixed mount 1 are integrally bent and formed.

Further, the fastener 4 includes a hexagonal full-thread bolt 401, a spring washer 402, and a nut 403, and the hexagonal full-thread bolt 401 penetrates the drawn-down iron corrugated sheet 3, the adjustment hole 6, and the spring washer 402 and is screw-coupled with the nut 403.

The fixing assembly 9 comprises a fastening screw 901 and a hot galvanizing bowl pad 902, the right end of the fastening screw 901 penetrates through the down-leading gasket 7 and is fixedly connected with the hot galvanizing bowl pad 902, and the fastening screw 901 is in threaded connection with the down-leading gasket 7.

Furthermore, an adjusting nut 903 is screwed to the outer surface of the fastening screw 901, and the adjusting nut 903 is located on the left side of the draw-down shim 7.

The down conductor clamp is shown in a perspective view in fig. 1, and a structure view of a U-shaped bracket 8 is shown in fig. 3.

When the device of the technical scheme is used, the right end of the L-shaped fixing frame 1 is clamped on the angle steel, then the fastening screw 901 is rotated to enable the hot galvanizing bowl pad 902 to move rightwards and to be pressed on the angle steel, then the adjusting nut 903 is screwed up to be in contact with the down-leading gasket 7, the fastening screw 901 is prevented from loosening, then the adjusting hole 6 on the down-leading support 2 is selected according to actual distance requirements, then the hexagonal full-tooth bolt 401 penetrates through the down-leading iron corrugated sheet 3, the adjusting hole 6 and the spring gasket 402 and is in threaded connection with the nut 403, and finally the nut 403 is screwed up to clamp the OPGW optical cable through the arc groove 5 on the right side of the down-leading iron corrugated sheet 3.

Claims

1. A down lead clamp for an OPGW tower comprises an L-shaped fixing frame (1); the left end of the L-shaped fixing frame (1) is fixedly connected with a lower guide support (2), two lower guide iron corrugated sheets (3) are arranged on two sides of the lower guide support (2), the lower guide iron corrugated sheets (3) are fixedly connected with the lower guide support (2) through fasteners (4), an arc groove (5) is formed in the right side of each lower guide iron corrugated sheet (3), the left end of each lower guide support (2) inclines upwards, a plurality of adjusting holes (6) are formed in each lower guide support (2), a lower guide gasket (7) is fixedly connected with the left end of the L-shaped fixing frame (1), U-shaped supports (8) are welded on the front side and the rear side of each L-shaped fixing frame (1) and each lower guide gasket (7), and a fixing assembly (9) is arranged on each lower guide gasket (7).

2. The drop wire clamp for the OPGW tower as recited in claim 1, wherein the left end of the down-guiding bracket (2) is inclined upwards by 30 degrees, and the down-guiding bracket (2) is integrally formed with the L-shaped fixing frame (1) in a bending manner.

3. The downlead clamp for an OPGW tower according to claim 2, wherein the fastener (4) comprises a hexagonal full-tooth bolt (401), a spring washer (402) and a nut (403), the hexagonal full-tooth bolt (401) passing through the downlead iron corrugated sheet (3), the adjusting hole (6) and the spring washer (402) and being in threaded connection with the nut (403).

4. The drop clamp for the OPGW tower as claimed in claim 3, wherein the fixing assembly (9) comprises a fastening screw (901) and a hot-dip galvanizing bowl pad (902), the right end of the fastening screw (901) penetrates through the drop gasket (7) and is fixedly connected with the hot-dip galvanizing bowl pad (902), and the fastening screw (901) is in threaded connection with the drop gasket (7).

5. The downlead clamp for an OPGW tower according to claim 4, wherein an adjusting nut (903) is screwed on the outer surface of the fastening screw (901), and the adjusting nut (903) is positioned on the left side of the downlead gasket (7).