CN205778475U - The telescopic cat ladder of upset is pedaled in power transmission lines overhauling side - Google Patents

Abstract

The utility model discloses a side-pedal flip telescopic vertical ladder for maintenance of power transmission lines, which comprises an outer tube and a hook assembly, and is characterized in that: the upper end of the outer tube is screwed with a hook assembly in an inner threaded opening; the lower port of the outer tube is inserted into a telescopic tube; the left and right side walls of the outer tube and the telescopic tube are equipped with flip pedals arranged equidistantly; the inner ends of the flip left pedal and the flip right pedal are snapped into the corresponding "U" In the jaw of the splint, and fixed by the rotating shaft, the inner end of the "U" splint is welded and fixed to the mounting position of the overturning right pedal and the overturning left pedal of the outer tube and the telescopic tube. The side-pedal flip telescopic vertical ladder for maintenance of power transmission lines can be stretched, side-pedaled and flipped, flexible and convenient to use, simple in structure, small in size, light in weight, convenient for storage and versatile. It can greatly reduce the labor intensity of operators in the maintenance of transmission lines.

Description

Side pedal flip telescopic vertical ladder for maintenance of transmission lines

technical field

The utility model relates to an improvement of a vertical ladder for the inspection and maintenance of transmission lines, in particular to a side-pedal flip telescopic vertical ladder for the inspection and maintenance of transmission lines.

Background technique

During power outage maintenance of transmission lines, in order to complete the maintenance tasks, operators often need to go from the cross arm of the tower to the conductor, and then return to the cross arm of the tower after the work is completed. According to the "110 (66) kV-500kV Overhead Transmission Line Maintenance Specifications" and other relevant standards, operators are not allowed to grasp or step on synthetic insulators when going up and down the wires, and vertical ladders are required. During maintenance, the operator first fixes the vertical ladder on the cross arm of the pole tower, and then works on the wire through the vertical ladder. After the work is completed, the operator returns to the pole tower through the vertical ladder, and finally removes the vertical ladder. At present, the length of vertical ladders used in line maintenance cannot be adjusted. Since synthetic insulators of different voltage levels have different lengths, it is necessary to equip vertical ladders of different lengths according to different maintenance tasks, and the existing vertical ladders are large in size and weight, which is not easy It is inconvenient to carry, install and dismantle, especially the work at high places brings difficulties to the line maintenance work.

Known by retrieval, in order to overcome the deficiency of above prior art, the report of existing multiple vertical ladder; What have adopted folding vertical ladder, its length is solved by folding. But do not see the report of the vertical ladder that can not only expand and contract, side pedal but also turn over at present.

Contents of the invention

The purpose of the utility model is to provide a side-pedal flip telescopic vertical ladder for power transmission line maintenance that can be stretched, side-pedaled and turned over.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the side pedal flip telescopic vertical ladder for maintenance of power transmission lines, including an outer tube and a hook assembly, is characterized in that: the upper end of the outer tube is screwed inside the inner threaded mouth of the hook Assembly; the lower port of the outer tube is inserted into the telescopic tube, and the length of the vertical ladder is adjusted through the length of the telescopic tube protruding from the outer tube; the left side walls of the outer tube and the telescopic tube are equipped with flipping left pedals arranged at equal distances The right side walls of the outer tube and the telescopic tube are equipped with flipped right pedals arranged at equal distances, and the flipped right pedals and the flipped left pedals are arranged in a cross; the flipped left pedals and the flipped right pedals The inner ends are all snapped into the jaws of the corresponding "U"-shaped splints and fixed by the rotating shaft. The inner ends of the "U"-shaped splints are welded to the installation positions of the flipped right pedal and the flipped left pedal of the outer tube and telescopic tube fixed.

The utility model is also implemented through the following measures: the hook assembly includes a left hook, a right hook, a fixed block, a screw rod and a threaded joint, the left hook and the right hook are arranged at the two ends of the fixed block, and are fixed by the screw rod, and the threaded joint It is welded and fixed on the lower side of the middle part of the fixed block, and the threaded joint is matched with the inner threaded opening at the upper end of the outer pipe.

The walls of the outer tube and the telescopic tube are provided with adjusting holes arranged equidistantly. After the telescopic tube is inserted into the outer tube, it is fixed by a bolt.

The inner diameter of the outer tube is equal to the outer diameter of the telescopic tube plus the sum of the thicknesses of the reversed left pedal and the reversed right pedal.

The length of the overturned left pedal and the overturned right pedal on the telescopic tube is 2/3 of the length of the overturned left pedal and the overturned right pedal on the outer tube.

The beneficial effect of the utility model is that: the side pedal flip telescopic vertical ladder for maintenance of power transmission line can be stretched, side pedaled and flipped, flexible and convenient to use, simple in structure, small in size, light in weight, easy to store and has universal sex. It can greatly reduce the labor intensity of operators in the maintenance of transmission lines.

Description of drawings

Fig. 1 is a schematic front view of the structure of the utility model.

Fig. 2 is an enlarged schematic diagram of an axial section of the structural hook assembly of the present invention.

Fig. 3 is a schematic top view of the structural "U" splint of the present invention.

detailed description

Make the utility model with reference to Fig. 1, Fig. 2, Fig. 3. The side pedal flip telescopic vertical ladder for maintenance of power transmission lines includes an outer pipe 1 and a hook assembly 2, and is characterized in that: the upper end of the outer pipe 1 is internally screwed to the hook assembly 2, and the hook assembly 2 is connected to the power transmission line pole and tower horizontally. Connected; the lower port of the outer tube 1 is inserted into the telescopic tube 3, and the length of the outer tube 1 is extended by the telescopic tube 3 to adjust the length of the vertical ladder; the left side walls of the outer tube 1 and the telescopic tube 3 are equipped with The reversed left pedal 4 arranged at a distance; the reversed right pedal 5 arranged equidistantly on the right side wall of the outer tube 1 and the telescopic tube 3, the reversed right pedal 5 and the reversed left pedal 4 are arranged in a cross; The inner ends of the flipped left pedal 4 and the flipped right pedal 5 are all snapped into the jaws of the corresponding "U"-shaped splint 6, and fixed by the rotating shaft 8. The inner end of the "U"-shaped splint 6 and the outer The installation positions of the overturned right pedal 5 and the overturned left pedal 4 of the tube 1 and the telescopic tube 3 are welded and fixed, and the overturned right pedal 5 and the overturned left pedal 4 are turned upward along the rotation axis 8 by overturning the right pedal 5 and the overturned left pedal 4. Turn over the folding of the left pedal 4, and flip down the turning axis 8 by turning the right pedal 5 and the left pedal 4, so that the right pedal 5 and the left pedal 4 are turned over and unfolded into a horizontal position; It can be stretched, side pedaled and turned over.

The utility model is also implemented through the following measures: the hook assembly 2 includes a left hook 21, a right hook 22, a fixed block 23, a screw rod 24 and a threaded joint 25, and the left hook 21 and the right hook 22 are located on two sides of the fixed block 23. end, and fixed by the screw rod 24, the threaded joint 25 is welded and fixed on the lower side of the middle part of the fixed block 23, and the threaded joint 25 is matched with the inner threaded opening of the upper end of the outer tube 1.

The walls of the outer tube 1 and the telescopic tube 3 are provided with adjusting holes 7 equidistantly arranged. After the telescopic tube 3 is inserted into the outer tube 1 , it is fixed by a bolt 9 .

The inner diameter of described outer tube 1 is equal to the outer diameter of telescoping tube 3 plus the sum of the thickness of overturning left pedal 4 and overturning right pedal 5; 5. When turning over to close to the wall of the telescopic tube 3, the telescopic tube 3 can be inserted into the outer tube 1.

The length of the overturned left pedal 4 and the overturned right pedal 5 on the telescopic tube 3 is 2/3 of the overturned left pedal 4 on the outer tube 1 and the overturned right pedal 5 length.

Claims (4)

1. The side pedal flip telescopic vertical ladder for maintenance of power transmission lines, including the outer pipe (1) and the hook assembly (2), characterized in that the upper end of the outer pipe (1) is internally threaded and connected to the hook assembly (2); The telescopic tube (3) is inserted into the lower port of the outer tube (1); the left side walls of the outer tube (1) and the telescopic tube (3) are equipped with turning left pedals (4) arranged equidistantly; The right side walls of the outer tube (1) and the telescopic tube (3) are equipped with flipped right pedals (5) arranged equidistantly, and the flipped right pedals (5) and the flipped left pedals (4) are arranged in a cross ; The inner ends of the flipped left pedal (4) and the flipped right pedal (5) are snapped into the jaws of the corresponding "U"-shaped splint (6), and fixed by the rotating shaft (8), "U The inner end of the "shaped splint (6) is welded and fixed to the installation position of the overturned right pedal (5) and the overturned left pedal (4) of the outer tube (1) and telescopic tube (3). 2. The side step flip telescopic vertical ladder for power transmission line maintenance according to claim 1, characterized in that: the hook assembly (2) includes a left hook (21), a right hook (22), a fixing block ( 23), screw rod (24) and threaded joint (25), the left hook (21) and the right hook (22) are set at both ends of the fixed block (23), and are fixed by the screw rod (24), and the threaded joint (25) is welded Fixed on the lower side of the middle part of the fixed block (23), the threaded joint (25) is matched with the inner threaded opening on the upper end of the outer tube (1). 3. The side step flip telescopic vertical ladder for power transmission line maintenance according to claim 1, characterized in that: the walls of the outer tube (1) and the telescopic tube (3) are equipped with equidistantly arranged adjustment After the hole (7), the telescopic tube (3) is inserted into the outer tube (1), it is fixed by a latch (9). 4. The side pedal flip telescopic vertical ladder for maintenance of power transmission lines according to claim 1 or 3, characterized in that: the inner diameter of the outer tube (1) is equal to the outer diameter of the telescopic tube (3) plus the flip left foot The sum of the thicknesses of the pedal (4) and flipped right pedal (5).