CN210779813U - Special tool for adjusting sag of 220kV vertically-arranged double-bundle conductor in electrified manner - Google Patents

Abstract

The utility model discloses a special tool for adjusting the sag of 220kV vertically arranged double-split conductors under live voltage, which aims to provide a special tool for adjusting the sag of 220kV vertically arranged double-split conductors under live voltage which can improve the working efficiency. The special tool includes a matching adjusting device and a protecting device; the adjusting device includes a screw sleeve, two screw rods screwed on both ends of the screw sleeve, two first shackles respectively connected to the ends of the two screw rods, and a fixed setting A T-shaped shank is formed with the screw sleeve in the middle of the screw sleeve. The utility model is convenient and quick to adjust, and can reduce the work intensity of equipotential employees and reduce the work time.

Description

A special tool for sag adjustment of 220kV vertically arranged double-split conductors

technical field

The utility model relates to the technical field of power grid construction appliances, in particular to a special tool for adjusting the sag of 220kV vertically arranged double-split conductors with electricity.

Background technique

At present, when adjusting the sag of the 220kV transmission line vertically arranged double-split conductors, the blackout operation is adopted. After the operator climbs the tower to the installation position, the chain hoist and the backup steel rope are hoisted by the ground electrician and installed by the operator. The defects of this traditional construction method are: there are many operators and the quality of the chain hoist is large. The requirements for operators are relatively high, and when the wire rope sleeve is used to connect the chain hoist tool, because the existing feasible tool chain hoist and the steel rope sleeve used as backup protection are long and both are metal tools, it is easy to occur when the control is not good. Short circuit, so it cannot be carried out by live operation, which brings great safety hazards; and the chain hoist is heavy, the labor intensity of the operator to carry and operate is high, the operation risk is high, the required tools are many, and the operation process It is more complicated, which increases the power outage time of the line and reduces the power supply.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a special tool for adjusting the sag of 220kV vertically arranged double-split conductors in live charging, which is light in weight, easy to carry and can improve work efficiency.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

A special tool for adjusting the sag of 220kV vertically arranged double-split conductors with electricity, including a matching adjustment device and a protection device; the adjustment device includes a screw sleeve, two screw rods screwed on both ends of the screw sleeve, and two screws are respectively connected to the two wires. The first shackle at the end of the rod, and the handle rod which is fixedly arranged in the middle of the screw sleeve and forms a T-shape with the screw sleeve.

Preferably, the protection device includes a first Dyneema cord buckle, and two second shackles respectively connected to both ends of the first Dyneema cord buckle.

Preferably, one of the first shackles is connected with a corresponding screw rod through a second Dyneema rope buckle.

Preferably, it also includes an extension rod detachably connected to the end of the handle.

Preferably, the end of the screw rod for connecting the first shackle is provided with a U-shaped through groove, and the mouth of the through groove is provided with a bolt for connecting the shackle.

Compared with the prior art, the utility model has the following advantages:

The utility model can safely and quickly adjust the sag of 220kV vertically arranged double-split conductors under live conditions; the Dyneema rope buckle is used for sag adjustment and conductor protection, which eliminates the possibility of short-circuits caused by metal tools during live work. Risk; the utility model has the advantages of light structure, convenient and fast adjustment, and can greatly reduce the weight of tools, reduce the work intensity of equipotential employees, and reduce the work time.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of the present invention, which shows the related structure of the connection between the first shackle and the wire.

In the figure: screw sleeve 1, lead screw 2, first shackle 3, handle rod 4, second shackle 5, first Dyneema rope buckle 6, through slot 7, bolt 8, wire clamp 9, wire 10 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In the following description, in order to clearly show the structure and working mode of the present invention, the drawings will be used as a reference to describe with the help of many directional words, but "front", "rear", "left" and "right" should be used for description. , "上", "下" and other words are understood as convenient terms, and should not be understood as limiting words.

The special tool for live adjustment of 220kV vertically arranged double-split conductor sag shown in Fig. 1 includes a matching adjustment device and a protection device; the adjustment device includes a screw sleeve 1, and two screw rods 2 screwed on both ends of the screw sleeve 1, Two first shackles 3 respectively connected to the ends of the two screw rods 2, and a shank 4 fixedly arranged in the middle of the screw sleeve 1 and forming a T-shape with the screw sleeve 1.

As a preferred technical solution, the protection device includes a first Dyneema cord buckle 6 and two second shackles 5 respectively connected to both ends of the first Dyneema cord buckle 6. The protection device is lightweight and has Phase-to-phase insulation. Obviously, the protection device can also adopt the common protection device at present.

As a further improvement, one of the first shackles 3 is connected to the corresponding lead screw 2 through a second Dyneema rope buckle (not shown in the figure), and both ends of the second Dyneema rope buckle are The dismantling connector (such as hanging buckle, etc.) is connected with the corresponding first shackle 3 and the lead screw 2, so as to meet the requirements when the maximum length of the screw sleeve 1 and the two lead screws 2 is not enough, and improve the applicability.

As a further improvement, it also includes an extension rod (not shown in the figure) that is detachably connected to the end of the handle rod 4. The extension rod can be connected to the handle rod 4 through a threaded structure or a snap connection structure. After disassembly, it is convenient to carry and use. It can save labor after assembly.

In this embodiment, the end of the screw rod 2 for connecting the first shackle 3 is provided with a U-shaped through groove 7 , and the opening of the through groove 7 is provided with a bolt 8 for connecting the shackle. Obviously, structures or components such as lifting rings that facilitate the connection of the first shackle 3 can also be fixedly arranged on the end plate of the screw rod 2 .

When it is necessary to adjust the sag of the 220kV vertically arranged double-split conductors, the operator carries the special tool to reach the equipotential installation position by climbing the soft ladder. If more tools need to be carried, the special tool can also be hoisted by the ground electrician; then Connect the second shackle at one end of the protection device to a construction hole in the triangle joint plate, and the second shackle at the other end through the wire clamp (directly contacting and locking the wire, which is the stress point between the tool and the wire. The wire diameter of the wire is selected from the wire clips of different specifications.) Connect with the wire, and the installation of the protection device is completed at this time. Next, connect the first shackle 3 at one end of the adjusting device to the triangle connecting plate, and connect the first shackle 3 at the other end with the wire through the wire clamp. The connection end between the connecting plate and the wire is released from the force. At this time, the connecting piece at the connection between the triangle connecting plate and the wire can be loosened. After adjusting the connection position of the triangle connecting plate and the wire, the connecting piece is tightened, and then the wire arc is realized. After the adjustment is completed, the adjustment device and the protection device can be removed in turn.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. For those skilled in the art, any modifications, equivalent replacements and improvements made to the technical solutions or part of the technical features described in the above-mentioned specific embodiments within the spirit and principles of the present invention shall include within the scope of protection of the present invention.

Claims (5)

1. A special tool for adjusting 220kV vertically-arranged double-bundle conductor sag in an electrified way comprises a regulating device and a protecting device which are matched with each other; the method is characterized in that: the adjusting device comprises a threaded sleeve, two screw rods which are screwed at two ends of the threaded sleeve, two first shackles which are respectively connected with the end parts of the two screw rods, and a handle rod which is fixedly arranged in the middle of the threaded sleeve and forms a T shape with the threaded sleeve.

2. The tool special for electrified adjustment of 220kV vertical arrangement double-bundle conductor sag according to claim 1, characterized in that: the protection device comprises a first Dynima rope fastener and two second shackles which are respectively connected with two ends of the first Dynima rope fastener.

3. The tool special for electrified adjustment of 220kV vertical arrangement double-bundle conductor sag according to claim 1 or 2, wherein: one of the first shackles is connected with the corresponding screw rod through a second Dyneema rope buckle.

4. The tool special for electrified adjustment of 220kV vertical arrangement double-bundle conductor sag according to claim 1 or 2, wherein: it also includes an extension bar detachably connected to the end of the handle bar.

5. The tool special for electrified adjustment of 220kV vertical arrangement double-bundle conductor sag according to claim 1 or 2, wherein: the end part of the screw rod, which is used for connecting the first shackle, is provided with a U-shaped through groove, and the opening part of the through groove is provided with a bolt for connecting the shackles.

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