CN204230769U - Climb type steel cable ladder - Google Patents

Abstract

The utility model discloses a climbing type steel wire rope ladder, which solves the problem of difficult climbing up and down between the cross arm of an overhead power transmission line tower and a wire. The stirrup-type pedal is plugged into the main steel wire rope of the rope ladder through the upper wire rope of the pedal wire rope sleeve, and the pedal wire rope sleeve is fixed on the main wire rope of the rope ladder. An upper U-shaped ring is sheathed on the upper end steel wire rope cover, and the lower end steel wire rope cover is connected with the wire hook through the lower U-shaped ring. The utility model is not limited by the tower type of the overhead transmission line in use, is easy to operate and carry, practical and flexible, safe and reliable for on-site operation, can be operated by a single person, and has the secondary protection function of preventing the wire from falling off; Reduce the labor intensity, work and operation risks of operators at heights, improve work efficiency, and save on-site operation costs.

Description

climbing wire rope ladder

technical field

The utility model relates to a climbing rope ladder, in particular to a tool for high-altitude climbing operation between the cross-arm of an overhead power transmission line tower and a conductor, and also has a secondary protection function of preventing the conductor from falling off during maintenance operations.

Background technique

At present, the main tool for climbing up and down between the cross arm of the overhead transmission line tower and the conductor is the aluminum alloy hanging ladder. The upper end of the aluminum alloy hanging ladder is suspended on the upper and lower ends of the pole tower cross arm, and the lower end cannot be fixed. The workers at heights swing back and forth when going up and down the aluminum alloy hanging ladder. Especially in the operation of replacing synthetic insulators during power outages, a secondary protective device to prevent wires from falling off must be hung before operation. Special tools, high-altitude workers sometimes step on insulators to maintain their own balance when going up and down aluminum alloy hanging ladders and maintenance operations. During operations, high-altitude workers must not only maintain their own balance, but also carry out maintenance and acceptance operations at high altitudes. The labor intensity of high-altitude workers and higher job risk.

Contents of the invention

The purpose of this utility model is to solve the high-altitude operation problem of climbing up and down between the pole tower cross arm and the conductor of the overhead transmission line, which is easy to step on the suspended composite insulator, and provide a climbing method for aerial work between the pole tower cross arm and the conductor of the overhead transmission line Type wire rope ladder, easy to operate, easy to carry, practical and flexible, safe and reliable for on-site operation, can be operated by a single person, and has a secondary protection function to prevent the wire from falling off, reducing the labor intensity and operation risk of the operators on the tower and improving the work efficiency. efficiency.

The utility model is characterized in that it includes: several stirrup-type pedals, the main wire rope of the rope ladder and a wire hook. , the pedal steel wire rope cover is fixed on the main steel wire rope of the rope ladder, and the two ends of the main steel wire rope of the rope ladder are respectively plugged with an upper steel wire rope cover and a lower steel wire rope cover. The upper steel wire rope cover is covered with an upper U-shaped ring. Wire hook connection.

The pedal steel wire rope cover is wound and fixed on the main steel wire rope of the rope ladder through iron binding wire.

The pedal wire rope cover of the stirrup type pedal is worn with a pedal tube, and a small groove is respectively opened at both ends of the pedal tube.

The section of the pedal tube is circular or square.

The main wire rope of the rope ladder is evenly inserted into a stirrup-type pedal every 40cm from the upper end to the lower end.

The wire hook is provided with a movable seal with a lowering and unlocking function.

As mentioned above, in order to ensure the strength of the main steel wire rope of the rope ladder and the steel wire rope cover on the stirrup type pedal, the utility model adopts steel wire rope in material selection, and adopts a steel wire rope plug-in connection in the connection process; , the upper end of the main steel wire rope of the rope ladder is connected to the cross arm of the tower through the upper U-shaped ring; in order to reduce the left and right swing of the operator on and off the rope ladder, a wire hook is installed at the lower end of the main steel wire rope of the rope ladder; From the upper end to the lower end of the main steel wire rope, a stirrup-type pedal is evenly inserted at a distance of about 40cm; in order to prevent the stirrup-type pedal from swinging and to facilitate the operator to directly put the foot into the stirrup-type pedal, the stirrup-type pedal is fixed with iron wire. The pedal is fixed on the main steel wire rope of the rope ladder; in order to reduce the injury caused by the stirrup-type pedal steel wire rope cover to the feet of the operator when climbing, a pedal tube is installed on the pedal steel wire rope cover of the stirrup-type pedal; in order to prevent the stirrup-type The pedal tube of the pedal rolls when stepping on it, and there is a small groove at both ends of the same section of the pedal tube; in order to adjust the direction of the wire hook when installing the ladder, a U-shaped ring is used to connect the wire hook and the main rope ladder. The wire rope sleeve at the lower end of the wire rope; in order to prevent the wire from falling off during maintenance work, a wire hook with a movable seal is used for secondary protection; in order to facilitate the removal of the wire hook at the end of the operation, a movable seal with the function of lowering and unlocking is used wire hooks.

The working principle of the utility model: the steel wire rope cover at the upper end of the main steel wire rope of the rope ladder is connected with the cross arm of the pole tower through the upper U-shaped ring, the wire hook connected with the steel wire rope cover at the lower end of the main steel wire rope of the rope ladder is hung on the wire, and the personnel working at high altitude pass on the main steel wire rope of the rope ladder by foot The stirrup-type pedals evenly distributed on the left and right and the main wire rope of the rope ladder can be used to climb the rope ladder at high altitude between the cross arm of the overhead transmission line tower and the conductor or stand on the rope ladder for maintenance, inspection and other high-altitude operations, as well as when replacing insulators or fittings It plays a secondary protective role at the same time, effectively preventing the wire from falling off.

Beneficial effects of the utility model: it solves the problem of difficult climbing up and down between the cross arm of the overhead transmission line tower and the conductor, especially the inspection and acceptance of the connecting fittings between the suspension composite insulator and the conductor, and the replacement of the composite insulator in a power failure It is difficult to climb up and down and step on the suspended synthetic insulator; repeated field tests and improvement and optimization have proved that the climbing wire rope ladder is not limited by the type of overhead transmission line tower when used, easy to operate, easy to carry, practical and flexible. The operation is safe and reliable, and can be operated by one person. It also has the secondary protection function to prevent the wire from falling off, reduces the workload of the operators on the tower, reduces the labor intensity and operation risks of the operators on the tower, improves work efficiency, and saves on-site job cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the utility model stirrup type pedal.

In the figure, 1. Upper U-shaped ring; 2. Upper end steel wire rope cover; 3. Main steel wire rope of rope ladder; 4. Stirrup type pedal; 5. Iron binding wire; 6. Lower U-shaped ring; Wire hook; 9. Movable seal;

10, pedal wire rope cover; 11, pedal tube; 12, small groove.

detailed description

The utility model climbing type wire rope ladder comprises stirrup type pedal 4, rope ladder main wire rope 3 and wire hook 8 etc. The main wire rope 3 of the rope ladder is evenly inserted into a stirrup type pedal 3 every 40cm distance from the upper end to the lower end.

Stirrup type pedal 4 is inserted on the rope ladder main wire rope 3 by the upper end wire rope of its pedal wire rope cover 10, and pedal steel wire rope cover 10 is wound and fixed on the rope ladder main wire rope 3 by iron binding wire 5. The general 400mm of the circumference of described pedal wire rope cover 10.

Have upper U-shaped ring 1 on the upper end wire rope cover 2 of rope ladder main wire rope 4, the lower end wire rope cover 7 of rope ladder main wire rope 4 is connected with lead hook 9 by following U-shaped ring 6. The general 300mm of the circumference of described upper end wire rope cover 2, the general 200mm of the circumference of lower end wire rope cover.

On the pedal wire rope cover 10 of the stirrup type pedal 4, a pedal pipe 11 is worn, and the described pedal pipe 11 is a round tube, and a small groove 12 is respectively arranged at the two ends of the same section. The length of described pedal tube 11 is about 120mm.

The lead hook 8 adopts a movable seal 9 with a function of lowering and unlocking.

Claims (6)

1. a climb type steel cable ladder, be characterised in that: comprise several stirrup formula pedals (4), rope ladder main rope (3) and wire hook (8), described stirrup formula pedal (4) comprises pedal steel wire loop (10), be plugged on rope ladder main rope (3) by the upper end steel wire rope of pedal steel wire loop (10), pedal steel wire loop (10) is fixed on rope ladder main rope (3), the two ends of rope ladder main rope (3) are plugged with upper end steel wire loop (2) respectively, lower end steel wire loop (7), the upper cover of upper end steel wire loop (2) has upper U-shaped ring (1), lower end steel wire loop (7) is connected with wire hook (8) by lower U-shaped ring (6).

2. climb type steel cable ladder as claimed in claim 1, is characterized in that: described pedal steel wire loop (10) is fastened on rope ladder main rope (3) by iron tied silk (5).

3. climb type steel cable ladder as claimed in claim 1, it is characterized in that: the pedal steel wire loop (10) of described stirrup formula pedal (4) is installed with pedal tube (11), pedal tube (11) two ends respectively have a sulculus (12).

4. climb type steel cable ladder as claimed in claim 3, is characterized in that: described pedal tube (11) cross section is for circular or square.

5. climb type steel cable ladder as claimed in claim 1, is characterized in that: rope ladder main rope (3) from upper end to lower end every the 40cm distance even grafting in left and right stirrup formula pedal (4).

6. climb type steel cable ladder as claimed in claim 1, is characterized in that: with having the movable sealing (9) of transferring unlocking function on described wire hook (8).