Device for preventing power transmission tower from collapsing caused by overload

A technology of transmission towers and tie rods is applied in the direction of devices for relieving mechanical tension, etc., which can solve the problems of increasing the construction cost of transmission towers, and achieve the effects of avoiding manpower and material resources, reducing losses, and reducing time and cost.

Inactive Publication Date: 2009-08-26
王国彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Raising the design standard will greatly increase the construction cost of the transmission tower

Method used

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  • Device for preventing power transmission tower from collapsing caused by overload
  • Device for preventing power transmission tower from collapsing caused by overload

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Experimental program
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Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] Such as figure 1 As shown, the present invention prevents the transmission tower from collapsing when the load is overloaded, and its structure includes a pull rod 8, an extension rope 5 and a barrel-shaped casing 7 wrapping them. The pulling rod 8 is connected to the insulator string 1 on the upper side and the suspension clamp 9 on the lower side through the connector, and the pulling rod 8 bears the pulling tension between the transmission tower and the transmission line.

[0022] figure 2 The embodiment of the connectors at the two ends of the pulling rod 8 is shown, which is a structure with the metal pull ring 3 as the main body. The metal pull ring 3 is made of 45# steel, one end is provided with a base, and the other end is provided with a mounting hole. The base of the metal pull ring 3 is threadedly connected with the end of the pull rod 8 . A sealing ...

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PUM

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Abstract

The invention discloses a device for preventing power transmission tower from collapsing caused by overload. The structure of the device comprises a stayed pole, an extended rope and a barrel-shaped crust wrapping up the stayed pole and the extended rope, wherein, the stayed pole is made of conducting material, the upper end of the stayed pole is fixedly connected with the lower end of the insulator string of the power transmission tower, and the lower end of the stayed pole is fixedly connected with a suspension clamp; the extended rope intertwines over the stayed pole or entwines in the cavity of the barrel-shaped crust, the two ends of the extended rope are fixed with the two ends of the stayed pole; the barrel-shaped crust is made of conducting material, which seals and wraps up the main part of the stayed pole and the whole extended rope. When the load bearing of transmission line reaches 60%-80% of the self breaking force value, the stayed pole breaks off and the transmission line falls to the ground to protect the power transmission tower from collapsing.

Description

technical field [0001] The invention belongs to the technical field of high-voltage power transmission, and in particular relates to a device installed between a power transmission tower and a power transmission line to prevent the power transmission tower from collapsing due to load-bearing and overload. Background technique [0002] The transmission line tower line system is the infrastructure for long-distance power supply. Under certain meteorological conditions in some areas, the tower wire system formed by the transmission tower and the transmission wire will be covered with ice. The weight of the ice coating increases the load of the tower wire system, and the ice coating will also cause the tower wire system to gallop and vibrate, causing the tension between the towers to be unbalanced under low-frequency wind loads, causing some parts of the tower wire system to break In severe cases, the entire tower collapses due to the load being greater than the design value of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/04
Inventor 王国彬
Owner 王国彬
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