Power transmission cable lead-in ground pipe plugging device

A technology of plugging device and power transmission line, which is applied in the direction of cable inlet sealing device, cable installation, cable installation in underground pipes, etc. , the effect of convenient operation

Active Publication Date: 2022-01-11
STATE GRID ZHEJIANG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a plugging device for the introduction of transmission cables into ground pipes, which can effectively solve the problem that the existing ground pipe entrance is prone to failure

Method used

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  • Power transmission cable lead-in ground pipe plugging device

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Embodiment Construction

[0013] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0014] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation,...

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Abstract

The invention discloses a power transmission cable lead-in ground pipe plugging device which comprises a shell and a fixing ring, a power transmission cable insertion hole is formed in the top of the shell, a ground pipe insertion hole is formed in the bottom of the shell, an elastic sealing piece is further arranged in the shell, an air bag is arranged in the sealing piece, and the sealing piece is annular and comprises an upper through hole and a lower through hole which are communicated. The upper through hole is connected with the power transmission cable insertion hole, the lower through hole is connected with the ground pipe insertion hole, the inner diameter of the lower through hole is larger than that of the upper through hole, a step is formed at the joint of the lower through hole and the upper through hole, and an extrusion part is arranged at the step; the fixing ring is fixed on the ground pipe, a bolt is arranged on the fixing ring, and a screw hole matched with the bolt is formed in the shell; and the top of the ground pipe extrudes the extrusion part by tightening the bolt, so that the volume of the air bag is reduced, and the upper through hole and the power transmission cable as well as the lower through hole and the ground pipe are in close contact to form sealing. The power transmission cable lead-in ground pipe plugging device has the advantages that the device is simple in structure and convenient to operate, and the leakproofness of the orifice of the ground pipe can be guaranteed for a long time.

Description

technical field [0001] The invention relates to a plugging device for a ground pipe leading into a power transmission cable. Background technique [0002] In the laying stage of power transmission cables, some areas are erected on high-altitude electric poles, and some areas need to go through underground pipelines. The cable is passed through the ground pipe. In order to facilitate the penetration of power transmission cables, the diameter of the ground pipe is generally larger than that of the power transmission cable. If the mouth of the ground pipe is not closed after the power transmission cable is penetrated, small animals or rainwater will enter the ground pipe, causing ground damage. Water accumulation in the pipe or other safety hazards. At present, plasticine is used for sealing, and the plasticine is easy to dry in the outdoor environment, causing cracks and falling off to fail. Contents of the invention [0003] The object of the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G9/06H02G15/013
CPCH02G9/06H02G15/013Y02A30/14
Inventor 章忠叶立兆周宇翔周小娜杨佳欣吴祥校李琼谢旭峰李田桃徐端
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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