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A grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe

A grounding clamp and tension tower technology, which is applied in the field of special grounding clamps for aluminum pipes drained by DC 800kV tension towers, can solve the problems of easy jamming of levers, complicated structure of grounding clamps, inapplicability, etc. simple structure

Active Publication Date: 2015-01-21
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The special grounding clamp for the drainage aluminum tube of the DC 800kV strain tower provided by the present invention aims to overcome the complicated structure of the grounding clamp due to the use of the lever principle in the prior art, and the fact that the lever is easily stuck during use and cannot reliably clamp the clamped object. Applicable to the shortcomings of DC 800kV strain tower transmission lines

Method used

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  • A grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe
  • A grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe
  • A grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe

Examples

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Embodiment 1

[0029] Below in conjunction with the accompanying drawings, the special grounding clamp for the drainage aluminum tube of the DC 800kV strain tower of the present invention will be further described. Such as figure 1 , figure 2 , image 3As shown, the special grounding clamp for the drainage aluminum pipe of the DC 800kV strain tower includes a base 1, and the base 1 is provided with a clamping part 2 with an accommodating space 7, and a wiring part for connecting copper wires and operating wires 3. The clamping part 2 is provided with a locking device 4 for preventing the clamping part 2 from being disengaged automatically, a reset device 5 for resetting the locking device 4, and a device for opening the clamping part 2 during wiring. The supporting part 6, the clamping part 2 includes a left splint 21 and a right splint 22, the left splint 21 and the right splint 22 are both rotatably connected and arranged on the base 1, and the left splint 21 and the right splint 22 can...

Embodiment 2

[0038] The difference between this embodiment and Embodiment 1 is that: Figure 4 As shown, the arc portion 23 of the left splint 21 and the right splint 22 are provided with rolling bearings 24 that reduce the friction between the arc portion 23 and the clamped object. When forming rolling friction with the clamping part 2, the clamped object is avoided from being damaged, and the service life of the clamped object is prolonged. The rolling bearing 24 can be directly arranged on the transition part through the positioning shaft, and the positioning shaft can be welded on the transition part as well. It can be set on the transition part by thread. When the special grounding clamp for the drainage aluminum pipe of the DC 800kV strain tower is large, in order to reduce the diameter of the rolling bearing 24, multiple pairs of rolling bearings 24 can also be set on the transition part. The rolling bearings 24 can be Directly arranged on the transition part can also be provided wi...

Embodiment 3

[0042] The difference between this embodiment and Embodiment 1 is that: Figure 5 , Figure 6 , Figure 7As shown, the resetting device 5 includes a reset rod 53 arranged on the left splint 21 or the right splint 22 and a connecting rod 54 connected with the reset rod 53 and controlling the adjusting rod 43. The connecting rod 54 is slidably connected to the left splint 21. Or on the right clamping plate 22, because the connecting rod 54 is used to control the adjusting rod 43, for the simple structure of the reset device 5, the connecting rod 54 should be located on the same clamping plate with the adjusting rod 43, and the connecting rod 54 can be directly arranged on the On the left clamping plate 21 or the right clamping plate 22, the connecting rod 54 can also be arranged on the left clamping plate 21 or the right clamping plate 22 by a locator, and the locating member is fixedly arranged on the left clamping plate 21 or the right clamping plate 22 and has the function o...

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Abstract

The invention relates to a high-voltage power grid overhauling tool and especially relates to a grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe. In the grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe, one end of a supporting rod is rotatably connected with a right clamping plate while the other end of the supporting rod is arranged in an accommodating space when a clamping component is loosened. A left clamping plate is equipped with a cooperation groove used for accommodating the supporting rod when the clamping component is clamped. In a using process, one end of the supporting rod is arranged in the accommodating space when the clamping component is loosened. A clamped object enters the accommodating space and then contacts the supporting rod in order that the supporting rod may enter the cooperation groove. Thus, the clamping component is clamped. In the using process, a jam phenomenon is prevented and the clamping component clamps the clamped objected reliably. The grounding wire clamp dedicated to a DC 800kV strain tower current drainage aluminum pipe is completely suitable for overhaul and emergency maintenance of a grounding wire clamp dedicated to a DC 800kV strain tower power transmission line and achieves convenient overhaul and emergency maintenance operation of the DC 800kV strain tower power transmission line.

Description

technical field [0001] The invention relates to a maintenance tool for a high-voltage power grid, in particular to a special grounding clamp for a direct-current 800kV tension tower drainage aluminum pipe. Background technique [0002] The high-voltage grounding clamp is a tool widely used in high-voltage transmission line power outage maintenance and emergency repair work. After the high-voltage transmission line is powered off, it must be installed on both ends of the power outage line before the maintenance and emergency repair work of the contact wire. In order to protect the staff who are overhauling and repairing the power outage line in this section from being hurt by induced current and reverse current. [0003] In the prior art, the lever-interconnected high-voltage grounding clamp disclosed in the patent document No. 200720017366 has two splints, a small lever and a spring are installed between the two splints, and there is a small opening at the bottom of the righ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R11/11H01R11/28H02G1/00
Inventor 刘平平俞强方杰缪正于洋章旭泳俞辉戴建华寿峰俞伟勇沈国平王一波
Owner STATE GRID CORP OF CHINA