CN102064495B - Lead wire brace rod for double-circuit lines on same pole - Google Patents

Abstract

The invention discloses a double-circuit line wire support bar on the same pole, which comprises an upper support bar and a lower support bar; insulating slings used for connecting the support bars and insulating slings used for lifting; There are two or more wire fixing clips, and a lifting point is set at each fixing clip; the insulating straps are installed at both ends of the insulating straps connecting the struts so that the insulating straps can be fastened to the lifting points of the upper and lower struts The hasp; the end of the lifting insulation sling is provided with a hook. The utility model has the advantages of reasonable structure, flexible assembly and disassembly, and convenient portability. In particular, the application of the aluminum alloy sheathed screw rod fulfills the requirement of smooth and horizontal movement of multiple wires in the lower layer. The wires are fixed using impact chucks, and according to the arrangement and quantity of the wires to be fixed and the environmental conditions, two methods of horizontal and vertical layout are adopted, which greatly facilitates the on-site assembly and disassembly of operators.

Description

A double-circuit line wire support rod on the same rod

technical field

The invention relates to a tool for live work, in particular to a support rod for a double-circuit line conductor on the same rod.

Background technique

With the rapid development of the national economy, the demand for electricity consumption in urban and rural areas has increased rapidly, and there are frequent cases of T-connection of new equipment after the 10kV power supply feeder is charged and the pole is erected. Usually, the working method of live poles for single-circuit lines is: after insulating and shielding the live wires in a certain range above the pole pit of Xinli electric poles, use tools such as insulating rods to spread the phase wires on both sides of the lower layer and lift the middle phase wires of the upper layer. After conducting the wire, carry out the erection of the new electric pole. The purpose is to ensure that components such as the shaft or the cross arm of the new pole do not touch the charged body during the erection process, thereby improving the safety of the operation. However, due to the fact that the layout of the wires of the double-circuit line on the same pole is different from that of the single-circuit line, the existing pole support tools cannot simultaneously fix, spread or pull the four wires on the lower layer of the double-circuit line erected on the same pole. . It not only affects the efficiency of the operation, but also involves the safety and rationality of the live pole replacement operation in the case of dual-circuit lines on the same pole. Therefore, there is an urgent need to develop the same-rod double-circuit line conductor brace to meet and ensure the actual safety requirements of the site.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the prior art, and provide a wire support rod suitable for erecting double-circuit line wires on the same rod.

A double-circuit wire stay on the same pole, the key points of its structure are: including an upper stay and a lower stay; insulating straps for connecting the stays and insulating straps for lifting; There are two or more wire fixing clips, and there is a lifting point at each fixing clip; the insulating straps are installed at both ends of the insulating straps connecting the braces to buckle the straps on the upper and lower braces. The buckle at the place; a hook is provided at the end of the lifting insulation sling.

When in use, the struts are first installed on the corresponding wires, and then the insulating suspenders connecting the struts are fixed on the hanging points of the upper and lower struts through the hasps at the ends. Hang the lifting insulating sling on the insulating sling connecting the strut through the hook, and then use the hydraulic winch of the small boom of the high-altitude insulating bucket truck (abbreviated as the trolley) to drive the upper conductor strut and the small boom to drive the lower conductor. Support rods, so as to realize the simultaneous or separate lifting and adjustment of the upper and lower layers of wires.

The upper and lower struts are all length-adjustable struts. The upper and lower struts are set as length-adjustable struts, so that the struts can be applied to multiple wires with different spacings. At the same time, the strut has the advantage of being easy to carry.

There are many ways to implement the length-adjustable strut, the following are the two forms provided by the applicant:

One is: the upper and lower struts are composed of two or more sections, and a pull-out structure with bolts is used between each section.

The other is: the upper and lower struts are composed of two or more sections, and the sections are connected by sleeved screw rods.

The use of the above two length-adjustable struts has the advantages of convenient assembly, flexible application, easy portability, and flexible assembly.

The wire fixing clips on the upper and lower struts are percussion chucks.

Of course, the wire fixing clips on the upper and lower struts can also be common grabs, screw-on collets and the like.

The percussion chucks on the upper strut are distributed horizontally.

The percussion chuck on the lower brace is upright.

The vertical or horizontal distributed impact chuck can reasonably bear the requirements of horizontal load and vertical load.

The hook provided at the end of the lifting insulation sling is a gravity locking hook.

The end of the lifting insulating sling is adopted with a gravity locking hook, which can conveniently complete the buckle assembly of the lifting sling of the lower conductor strut in a safe and reasonable position, thereby meeting the needs of the live line to erect the pole and lift the conductor.

The insulating slings connecting the struts are flat slings of adjustable length.

The upper and lower cross-arms erected by the double-circuit conductors, the pole design of different materials and manual installation will cause different spacing. Before pulling the conductors, the length of the slings connecting and supporting the poles needs to be adjusted appropriately. Hence the choice of a flat harness with adjustable length.

Insulated slings for lifting are round slings.

Described suspension point is suspension ring.

In summary, compared with the prior art, the present invention has the following advantages:

The double-circuit wire support bar of the same pole of the present invention has the advantages of reasonable structure, flexible assembly and disassembly, and convenient portability. In particular, the application of the aluminum alloy sheathed screw rod fulfills the requirement of smooth and horizontal movement of multiple wires in the lower layer. The wires are fixed using impact chucks, and according to the arrangement and quantity of the wires to be fixed and the environmental conditions, two methods of horizontal and vertical layout are adopted, which greatly facilitates the on-site assembly and disassembly of operators. At the same time, through the length-adjustable insulating sling, it can be well adapted to the adjustment and use of the occasions where the installation height and length of the upper and lower cross-arms of the operation line are different. Through the combined use of the gravity locking hook and the sling, it is convenient to complete the buckle-in assembly of the lifting sling of the lower conductor strut at a safe and reasonable position, thereby meeting the needs of the live line for erecting the pole and lifting the conductor.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the upper strut of the same-rod double-circuit conductor strut of the present invention

Fig. 2 is a structural schematic diagram of the lower strut of the same-rod double-circuit conductor strut of the present invention

Fig. 3 is a schematic diagram of the assembly structure of the same-rod double-circuit wire strut of the present invention

Explanation of Reference Signs 1 Upper strut 2 Lower strut 3 Flat sling 4 Round sling 5 Impact chuck 6 Aluminum sleeved screw 7 Lifting point 8 Gravity locking hook 9 Hasp

Detailed ways

The present invention will be described in more detail below in conjunction with examples.

Example 1

A schematic diagram of a double-circuit line conductor stay on the same pole as shown in Figures 1-3, including an upper stay 1, a lower stay 2, insulating straps for the braces, and insulating straps for lifting. The upper strut is composed of two sections, and the bolts are used to fix the pull-out structure between the sections. Two horizontally distributed impact chucks 5 are arranged at both ends of the upper strut; The lower strut is composed of two sections, and the segments are connected by an aluminum alloy sleeve type screw rod 6, and four vertical impact chucks are distributed on the lower strut. Ring-type lifting points 7 are arranged at the impact chucks of the upper and lower struts. The lifting insulating sling is a round sling 4, and a gravity locking hook 8 is arranged at the end of the sling. The insulating suspenders connecting the struts are flat suspenders 3 with adjustable length, and buckles 9 that can be matched with suspension points are arranged at the ends thereof.

The parts not described in this embodiment are the same as the prior art.

Claims (10)

1. A double-circuit line conductor stay with the same pole, characterized in that: it comprises an upper stay (1), a lower stay (2); an insulating suspender for connecting the stay and an insulating suspender for lifting; The upper and lower braces are respectively provided with more than two wire fixing clips, and a suspension point (7) is arranged at each fixing clip; The hasp (9) at the lifting point of the upper and lower struts; a suspension hook is arranged at the end of the lifting insulating suspender. 2. The conductor stay for double-circuit lines on the same pole according to claim 1, wherein the upper and lower stays are length-adjustable stays. 3. The double-circuit line wire stay on the same pole according to claim 2, characterized in that: the upper and lower stays are composed of more than two sections, and the pull-out type with bolts is adopted between each section. structure. 4. The same-rod double-circuit line wire stay according to claim 2, characterized in that: the upper and lower stays are composed of more than two sections, and the sections are connected by sleeved screw rods. 5. The wire support rod for double-circuit lines on the same pole according to claim 3 or 4, characterized in that: the wire fixing clips on the upper and lower support rods are percussion chucks (5). 6. The conductor support bar of double-circuit lines on the same pole according to claim 5, characterized in that: the percussion chucks on the upper support bar are distributed horizontally. 7. The same-rod double-circuit line wire support rod according to claim 6, characterized in that: the percussion chuck on the lower support rod is upright. 8. The conductor stay of double-circuit line on the same pole according to claim 7, characterized in that: the hook provided at the end of the lifting insulating sling is a gravity locking hook (8). the 9. The conductor support bar of double-circuit line on the same pole according to claim 8, characterized in that: the insulating suspenders connecting the poles are flat suspenders (3) with adjustable length. 10. The conductor support rod of double-circuit lines on the same pole according to claim 9, characterized in that: the insulating sling used for pulling is a round sling (4).

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