CN112582957A

CN112582957A - Quick adjustment wire arc device that hangs down

Info

Publication number: CN112582957A
Application number: CN202011337792.3A
Authority: CN
Inventors: 何建忠; 姚伟; 徐胜利; 黄涛; 孙兆龙; 隋风泉; 宋振兴
Original assignee: Penglai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Penglai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-03-30

Abstract

The invention relates to a rapid adjusting wire sag device, belonging to the technical field of the structure of the wire sag adjusting device. Including a door bracket erected on the wire, the two ends of the door bracket are provided with clips for clamping above the wire, the bottom of the clip is equipped with a pulley for clipping under the wire, and the middle position of the door bracket is installed. There is a height-adjustable tension adjustment device that can tighten the wire. The invention does not need disassembly and assembly to adjust the sag of the wire, the adjustment is simple, and the loss is reduced.

Description

Quick adjustment wire arc device that hangs down

Technical Field

The invention relates to a device for quickly adjusting a conductor sag, and belongs to the technical field of conductor sag adjusting device structures.

Background

The sag is the vertical distance between the lowest point of the wire and a connecting line between two suspension points on the flat ground when the suspension heights of the wires on two adjacent base electric poles are the same. Generally, when the transmission distance is far, due to the dead weight of the wire, a slight sag is formed, so that the wire is in the shape of a catenary, if the heights of the suspension points of the wire on two adjacent electric poles are different, at this time, two sags appear in one span, namely two vertical distances from the two suspension points of the wire to the lowest point of the wire are called as a maximum sag and a minimum sag, theoretically, due to the fact that infinite force is required for straightening one wire, and such force does not exist in practice, if the sag of the wire of an electric line is too large, the distance between the lowest point of the line and the ground does not meet the safety distance required by design, and when a strong wind and the line have a short-circuit fault, the swing degree of the wire enables the inter-phase distance of the line to not meet the safety distance requirement, the service life of the cable is shortened, so that the sag is required to be reserved within a controllable range, therefore, the arc sag of the electric wire needs to be properly adjusted, but the electric wire needs to be disassembled and assembled again when the arc sag is adjusted at present, single adjustment is inconvenient, and if parts of an adjusting device are damaged, the arc sag cannot be continuously adjusted, so that the fault tolerance of the electric wire in the adjusting process needs to be increased, and the loss is reduced.

Disclosure of Invention

The invention aims to solve the problems and provides a device for quickly adjusting the conductor sag, which does not need to be disassembled, assembled and adjusted, is simple to adjust and reduces loss.

The invention discloses a device for quickly adjusting the sag of a lead, which is characterized by comprising a door-shaped support 1 erected on a lead 2, wherein clamping pieces 3 clamped above the lead 2 are arranged at two ends of the door-shaped support 1, a pulley 4 clamped below the lead 2 is arranged at the bottom of each clamping piece 3, and a tightness adjusting device which is adjustable in height and can tighten the lead 2 is arranged at the middle position of the door-shaped support 1;

the clamping piece 3 comprises an n-type bayonet inserted on the wire, and the shape of the n-type bayonet is matched with the diameter of the wire 2;

the door-shaped support 1 comprises a cross beam 6 and vertical arms 7 arranged at two ends of the cross beam 6, and the vertical arms 7 and the cross beam 6 are of an integral structure;

the tightness adjusting device comprises a circular mounting hole 8 formed in the cross beam 6, internal threads are formed in the inner wall of the circular mounting hole 8, a rotating rod 9 with external threads is screwed in the mounting hole 8, a crank 10 is mounted at the top of the rotating rod 9, and a semicircular top plate 11 which is in contact with the lead 2 is mounted at the bottom of the rotating rod;

an inclined supporting beam 12 for increasing the strength is arranged between the vertical arm 7 and the cross beam 6;

and a groove for passing a lead is formed in the outer ring of the pulley 4.

The device for quickly adjusting the sag of the lead has the advantages that the structural design is ingenious, when the device is used, the door-shaped support is arranged on the lead, the clamping piece is matched with the pulley for use, the lead can be clamped between the clamping piece and the pulley, so that the door-shaped support is erected on the lead, the semicircular jacking disc moves downwards by rotating the crank, the lead is supported and tightened, and the sag adjustment of the lead is realized. When the invention is used, the conductor sag is not required to be adjusted by dismounting, the adjustment is simple, and the loss is low.

Drawings

Fig. 1 is a schematic structural diagram of a device for rapidly adjusting a wire sag according to the present invention.

In the figure: 1. a gantry support; 2. a wire; 3. a clamping piece; 4. a pulley; 6. A cross beam; 7. a vertical arm; 8. a circular mounting hole; 9. rotating the rod; 10. a crank; 11. a semicircular top plate; 12. and (4) bracing the beam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The device for quickly adjusting the sag of the lead is disclosed in the embodiment, referring to the attached drawing 1, and comprises a door-shaped support 1 erected on a lead 2, wherein clamping pieces 3 clamped above the lead 2 are arranged at two ends of the door-shaped support 1, a pulley 4 clamped below the lead 2 is arranged at the bottom of each clamping piece 3, a tightness adjusting device which is adjustable in height and can tighten the lead 2 is arranged at the middle position of the door-shaped support 1, each clamping piece 3 comprises an n-shaped bayonet inserted on the lead, the shape of the n-shaped bayonet is matched with the diameter of the lead 2, the door-shaped support 1 comprises a cross beam 6 and vertical arms 7 arranged at two ends of the cross beam 6, and the vertical arms 7 and the cross beam 6 are of an integral structure; the tightness adjusting device comprises a circular mounting hole 8 formed in the cross beam 6, internal threads are formed in the inner wall of the circular mounting hole 8, a rotating rod 9 with external threads is screwed in the mounting hole 8, a crank 10 is mounted at the top of the rotating rod 9, and a semicircular top plate 11 which is in contact with the lead 2 is mounted at the bottom of the rotating rod; a diagonal bracing beam 12 for increasing the strength is arranged between the vertical arm 7 and the cross beam 6; the outer ring of the pulley 4 is provided with a groove for passing through a wire.

The working principle is as follows: during the use, install door type support 1 on wire 2, joint spare 3 and pulley 4 cooperation are used, can block wire 2 between the two to make door type support 1 erect on wire 2, through rotating crank 10, make semi-circular top dish 11 move down, prop up wire 2 and tighten, realize that the wire arc hangs down and adjust.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A quick-adjusting wire sag device is characterized in that it comprises a gantry-type bracket erected on the wire, both ends of the gantry-shaped bracket are provided with clips for being clamped above the wires, and the bottom of the clip The pulley is clamped under the wire, and a height-adjustable tightness adjusting device that can tighten the wire is installed at the middle position of the door bracket.

2 . The device for quickly adjusting wire sag according to claim 1 , wherein the clip includes an n-type bayonet inserted on the wire, and the shape of the n-type bayonet matches the diameter of the wire. 3 . .

3 . The device for quickly adjusting wire sag according to claim 1 , wherein the portal support comprises a beam and vertical arms arranged at both ends of the beam, and the vertical arms and the beam are integral structures. 4 .

4. A device for quickly adjusting wire sag according to claim 2, characterized in that the tightness adjusting device comprises a circular mounting hole opened on the beam, the inner wall of the circular mounting hole is provided with an internal thread, and the mounting hole A rotating rod with an external thread is internally screwed, a crank handle is installed on the top of the rotating rod, and a semicircular top plate that is in contact with the wire is installed at the bottom.

5. A quick-adjusting wire sag device according to claim 1, characterized in that a diagonal brace for increasing the strength is installed between the vertical arm and the beam.

6 . The device for quickly adjusting the sag of a wire according to claim 1 , wherein the outer ring of the pulley is provided with a groove for passing the wire. 7 .