CN205759199U - 220kV Twin bundled line electrified operation self-locking backup protection rope - Google Patents

Abstract

The utility model discloses a self-locking backup protection rope for 220kV double-split wire live work, including a shackle, two sub-wire hooks and a rectangular plate body, and is characterized in that: the middle part of the rectangular plate body is provided with a convex ring and a soft wire The rope is connected with the shackle; the inner cavity of the sub-conductor hook is an arc-shaped opening, and a raised splint is provided on the inner wall of the opening edge, and the self-locking plate is snapped into the jaw of the raised splint, and the front end of the self-locking plate touches the To the lower part of the outer mouth of the sub-wire hook, it is fixed by the rotating shaft, and an extension spring is provided between the rear end of the self-locking plate and the rectangular plate body; a stay rope is tied in the rear end hole of the self-locking plate. The protection rope can not only replace the linear insulator of 220kV double-split conductors with electricity, but also has a simple structure, low cost, and simple operation. When replacing the insulators of double-split conductors during live work, it only needs to be hung and dismantled once to complete the suspension of the backup protection rope. And release, can reduce the workload, improve work efficiency.

Description

220kV double-split conductor live working with self-locking backup protection rope

technical field

The utility model relates to an improvement of a backup protective rope used in the process of replacing a linear insulator of a 220kV double-split conductor with electricity, in particular to a self-locking backup protective rope for the live operation of a 220kV double-split conductor.

Background technique

During live replacement of 220kV double-split wire linear insulators, it is necessary to use a wire lifting tool to lift the wire for a certain distance, so that the electrician can take out the old insulator pins and install new insulator pins. If the cable falls off from the wire tool, a backup protection rope must be used for backup protection of the wire. Because the wire adopts double-split form and has two sub-conductors, it is generally necessary to hang two backup protection ropes, one on each sub-conductor. When working at high altitude on the pole tower, the staff perform work such as transmission, suspension, and release of the backup rope. The work load is relatively large and it takes a long time.

It can be seen through retrieval that in order to overcome the above deficiencies in the prior art, Chinese patent 200720158323.9 discloses a "combined double and four-split wire backup protection rope", which includes a shackle, a wire rope sleeve, a wire bracket, a hook and a protection rope body. The two hooks are connected with the lead bracket, the shackle is connected with the protection rope body through the wire rope sleeve, and the protection rope body is connected with the lead support again. The shortcomings of this "combined double and four-split wire backup protection rope" are: first, because the hook mouth cannot realize self-locking and self-opening, so it is not convenient to use; , and it is conductive, the surface is rough, and it is not safe to use; the third is the complex structure.

Contents of the invention

The purpose of the utility model is to provide a self-locking back-up protection rope for 220kV double-split wire live working which not only can replace the linear insulator of 220kV double-split wire with electricity, but also has a simple structure, self-locking and self-opening of the hook opening, and safe and convenient use.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the 220kV double-split conductor live working self-locking backup protection rope includes a shackle, two sub-conductor hooks and a rectangular plate body, and the two sub-conductor hooks are respectively arranged on rectangular The two ends of the board body; it is characterized in that: the two sub-wire hooks and the rectangular board body are integrated; the middle part of the rectangular board body is provided with a protruding ring, and a soft wire rope is passed between the shackle and the protruding ring. Connection; the inner cavity of the sub-conductor hook is an arc-shaped opening, and the width of the opening is 1/3 of the diameter of the inner cavity. A raised splint is provided on the inner wall of the mouth, and the self-locking is snapped into the jaw of the raised splint. plate, the front end of the self-locking plate reaches the lower part of the outer edge of the sub-wire hook, and is fixed by a rotating shaft. A tension spring is arranged between the rear end of the self-locking plate and the rectangular plate body; Tie a drawstring into the hole.

The utility model is also implemented through the following measures: the shackle is composed of an inverted "U" plate and a screw rod, and the screw rod is screwed into the screw holes on the two side walls of the mouth end of the inverted "U" plate.

The soft silk rope and the stay rope are one of polyethylene ultra-high molecular fiber rope or silk rope.

The shackle is a shackle with a rated load of 6T, which is fixed on a firm member of the tower during operation.

The beneficial effect of the utility model is that: the self-locking backup protection rope for the 220kV double-split conductor live work can not only replace the linear insulator of the 220kV double-split conductor, but also has a simple structure, low cost, and simple operation. For insulators, only one hanging and removing operation is required to complete the suspension and release of the backup protection rope, which can reduce the operating load and improve the operating efficiency.

Description of drawings

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

Fig. 2 is a top view schematic diagram of the structural sub-conductor hook of the present invention.

detailed description

Make the utility model with reference to Fig. 1, Fig. 2. The 220kV double-split conductor self-locking backup protection rope for live work includes a shackle 1, two sub-conductor hooks 2 and a rectangular plate body 3. A split sub-wire; it is characterized in that: the two sub-wire hooks 2 and the rectangular plate body 3 are integrated; the middle part of the rectangular plate body 3 is provided with a convex ring 4, between the shackle 1 and the convex ring 4 The space is connected by a soft silk rope 5; the inner cavity of the sub-conductor hook 2 is an arc-shaped opening, and the width of the opening is 1/3 of the diameter of the inner cavity. Snap into the self-locking plate 7 in the jaw of splint 6, the front end of self-locking plate 7 arrives at the lower part of the outside opening edge of sub-conductor hook 2, is fixed by rotating shaft 8, at the rear end of self-locking plate 7 and rectangular plate body 3 is provided with an extension spring 9, after the sub-conductor is stuck in the sub-conductor hook 2, by the pulling of the extension spring 9, the front end of the self-locking plate 7 is sealed in the opening of the sub-conductor hook 2, which can effectively prevent The sub-conductor comes out; tie a stay cord 10 in the rear end hole of the self-locking plate 7, and by pulling the stay cord 10 upwards, the front end of the self-locking plate 7 turns downwards, so that the opening of the sub-conductor hook 2 can be opened, and from the sub-conductor Take it off.

As an improvement of the present utility model: the described shackle 1 is composed of an inverted "U" plate and a screw rod 11, and the screw rod 11 is screwed into the screw holes on both sides of the mouth end of the inverted "U" plate.

The soft silk rope 5 and the stay rope 10 are one of polyethylene ultra-high molecular fiber rope or silk rope. It can not only withstand the load generated when the line wire is suddenly disconnected, but also is soft, smooth, and safe to use; it is also conducive to rotation during use.

The shackle 1 is a shackle with a rated load of 6T, which is fixed on a firm member of the tower during operation.

Claims (2)

1.220kV Twin bundled line electrified operation self-locking backup protection rope; including shackle (1), two sub-wire hooks (2) and rectangle plate body (3); two sub-wire hooks (2) are respectively provided at the two ends of rectangle plate body (3), it is characterised in that: two described sub-wire hooks (2) and rectangle plate body (3) they are an entirety；The middle part of described rectangle plate body (3) is provided with bulge loop (4), is connected by soft cord (5) between shackle (1) with bulge loop (4)；Described sub-conductor hook (2) inner chamber is open circles arc, the width of opening is the 1/3 of intracavity diameter, opening's edge medial wall is provided with protruding clamping plate (6), self-locking plate (7) is snapped in the jaws of protruding clamping plate (6), the bottom to the lateral port edge of sub-conductor hook (2) is supported in the front end of self-locking plate (7), fixed by rotary shaft (8), between the rear end of self-locking plate (7) and rectangle plate body (3), be provided with extension spring (9)；Stay cord (10) is fastened in the rear hole of self-locking plate (7).

220kV Twin bundled line electrified operation self-locking backup protection rope the most according to claim 1, it is characterised in that: described shackle (1) is made up of inverted " u " plate and screw rod (11), and screw rod (11) screws in the screw of inverted " u " plate mouth end two side.