CN204205395U - Cross-arm bracket - Google Patents

Abstract

A cross-arm bracket, including two square steel pipes placed in parallel, a support frame is provided on the square steel pipes, two top tension frames arranged left and right are arranged on the inner side of each square steel pipe, and the corresponding ends of the two square steel pipes are hinged There are two upper and lower connecting plates arranged in dislocation. There are multiple connecting position adjustment holes on the two connecting plates. Connecting bolts and nuts are installed in the two adjustment holes corresponding to the upper and lower sides. On the other side of the two square steel pipes A lead screw is provided, the rear end of the lead screw is hinged on the back square steel pipe, the front square steel pipe has a gap corresponding to one end of the lead screw, the front part of the lead screw is inserted into the gap, and the front part of the lead screw is provided with a There are threads, and lock nuts are installed through the threads, and the distance between the two square steel pipes corresponding to the ends is adjusted through the lock nuts. The beneficial effects are: simple structure, convenient assembly and disassembly, high working efficiency, low labor intensity, high safety factor, and one person on the pole can work.

Description

Cross Arm Bracket

technical field

The utility model relates to a cross arm bracket.

Background technique

The cross-arm is one of the most basic materials on the overhead power line. Its main function is to support the power line. It is used in a wide range and has a high frequency. There are many operations to replace the cross-arm and install a new cross-arm. The following two methods are mainly used when replacing the cross-arm in electric power work maintenance. The first method is to replace the cross-arm by climbing on the pole: two people are required, and it is not safe to put the cross-arm on the safety belt; the disassembly and adjustment need to be supported by hands, and the personnel are laborious; the time required is 30 minutes. The second method is to use an aerial work vehicle to replace the cross-arm. It is necessary to support the cross-arm itself with the arm, the human body bears a larger moment, the disassembly and adjustment are more difficult, and it is easy to fall from a height. The time required is 30 minutes.

Utility model content

The utility model aims to solve the above-mentioned problems in the prior art, and provides a cross-arm bracket with simple structure, convenient assembly and disassembly, high working efficiency, low labor intensity, high safety factor, and one person on the pole can work.

The technical solution of the utility model is:

A cross-arm bracket, including two square steel pipes placed in parallel front and back, on the square steel pipes, there is an upwardly extending support frame, and the inner side of each square steel pipe is provided with two top tensioning frames arranged left and right, and the two square steel pipes The corresponding one end is hinged with two upper and lower connecting plates arranged in dislocation. The two connecting plates are provided with a plurality of connection position adjustment holes, and connecting bolts and nuts are installed in the two corresponding upper and lower adjustment holes. The other side of the steel pipe is provided with a lead screw, the rear end of the lead screw is hinged on the back square steel pipe, the front square steel pipe corresponding to one end of the lead screw has a gap, the front part of the lead screw is inserted into the gap, The front part is provided with threads, and lock nuts are installed through the threads, and the distance between the two square steel pipes corresponding to the ends is adjusted through the lock nuts.

The clamping frame is a right-angled triangle, and the right-angle sides of the clamping frame on the same square steel pipe are opposite to each other.

The beneficial effects of the utility model are: simple structure, convenient disassembly and assembly, flexible operation, regular wires, greatly reducing the labor intensity of operators, high operating efficiency, shortening the operating time for changing the cross arm from 30 minutes to 15 minutes; good safety, To avoid the accident of the cross arm falling off due to improper cooperation, one person on the pole can work, reducing the number of operators on the pole.

Description of drawings

Fig. 1 is the structural representation of cross-arm bracket of the present utility model;

Fig. 2 is an AA sectional view of Fig. 1 .

Among the figure: square steel pipe 1,2, by frame 3, top tight frame 4, connecting plate 5, connecting bolt 6, leading screw 7, lock nut 8, gap 101, adjustment hole 501.

Detailed ways

As shown in the figure, the cross-arm bracket involved in the utility model includes two square steel pipes 1 and 2 placed in parallel in front and back, on the square steel pipes 1 and 2, there is an upwardly extending support frame 3, and the inner side of each square steel pipe 1 There are two top tensioning frames 4 arranged left and right, and two connecting plates 5 arranged up and down are hinged at the corresponding ends of the two square steel pipes 1. The two connecting plates 5 are provided with a plurality of connection position adjustment holes 501, Connecting bolts 6 and nuts are installed in the two adjustment holes 501 corresponding up and down, and a lead screw 7 is arranged on the other side of the two square steel pipes 1, and the rear end of the lead screw 7 is hinged on the square steel pipe 2 at the back. One end of the front square steel pipe 1 corresponding to the lead screw 7 has a gap 101, the front part of the lead screw 7 is inserted into the gap 101, the front part of the lead screw 7 is provided with threads, and a lock nut 8 is installed through the threads, and the lock nut 8 is installed through the lock. Tight nut 8 adjusts the distance between two square steel pipes 1,2 corresponding to this end.

The clamping frame 4 is a right-angled triangle, and the right-angled sides of the clamping frame 4 on the same square steel pipe are opposite.

When using the cross-arm bracket to replace the cross-arm, the operation process is as follows:

1. Before replacing the cross arm, open the lead screw 7, put the cross bracket bracket on the cement rod, adjust the front and rear distances of the square steel pipes 1 and 2 corresponding to the side of the connecting plate 5 according to the specifications of the cement rod, and use the connecting bolts 6 and 5 after adjustment. The nut is connected between the two connecting plates 5;

2. The staff on the pole raises the cross-arm bracket to the lower part of the cross-arm and close to the position of the cross-arm with an insulating rope, so that one side of the support frame 3 is directly under the old cross-arm, and then install the screw 7 into the front square steel pipe 1. Lock the gap 101 with the lock nut 8, so that the top clamp 4 tightly blocks the cement rod;

3. Use the insulating rope to transfer the new cross-arm to the cross-arm bracket and lean on the other side support frame 3. Use the hoop to install the new cross-arm above the side support frame, which is opposite to the old cross-arm of the cement pole. Fix the wire;

4. Remove the old cross-arm, put it on the cross-arm bracket and lean against the frame 3 directly below the old cross-arm; fasten it with an insulating rope and pass the old cross-arm to the ground.

Claims (2)

1. a cross-arm bracket, comprise the square steel tube of two parallel placements in front and back, it is characterized in that: be provided with on square steel tube stretch upwards by frame, the inner side of each square steel tube be provided with about two arrange hold out against frame, one end that two square steel tubes are corresponding is hinged with on two, the connecting plate that lower dislocation is arranged, two connecting plates are provided with multiple link position adjusting hole, in two corresponding up and down adjusting holes, connecting bolt and nut are installed, leading screw is provided with at two square steel tube opposite sides, the rear end of leading screw is hinged on square steel tube below, one end of the corresponding leading screw of square steel tube before described has gap, described leading screw front portion is inserted in gap, screw thread is provided with in the front portion of leading screw, by screw thread, locking nut is installed, by locking nut adjustment to the distance between two square steel tubes that should hold.

2. cross-arm bracket according to claim 1, is characterized in that: described in hold out against frame be right-angled triangle, the right-angle side holding out against frame be positioned on same square steel tube is relative.