a police device

Abstract

The invention provides a navigation alarm device. The body of the navigation alarm device is a hollow sphere. The sphere is provided with a rotating mechanism. The sphere is rotatably mounted on an overhead cable through the rotating mechanism. According to the navigation alarm device, the sphere can rotate on the overhead cable. When the sphere is blown by a strong wind, the sphere can rotate adaptively and the front-direction blowing air current of the strong wind is changed, thereby reducing the resistance of a spherical surface to the strong wind and reducing the load of the overhead cable. When the weight of accumulated snow on the spherical surface at one side is larger than the weight of the accumulated snow on the other spherical surface at the other side, the sphere can rotate adaptively, thereby automatically removing the accumulated snow on the spherical surfaces and reducing the load of the overhead cable.

Description

technical field [0001] The invention relates to the field of transmission line identification, in particular to identification products used in power overhead lines to warn aviation aircraft and ships traveling in rivers and seas. Background technique [0002] The height of the tower of the high-voltage transmission and distribution line has reached 110 meters. With the development of our country's economy and the opening of low-altitude flight, the number of various types of aircraft is increasing, and the frequency of use is increasing. Flight activity is also becoming more active. Low-altitude flight brings convenience to our life, but it also brings some serious safety problems. For example, some cables cross the river, cross the sea and the air, if there is no proper sign to remind the pilot of the aircraft and the pilot of the ship, the power line The location and altitude will seriously affect the safety of aircraft and ships and the normal power supply. [0003] At...

AI Technical Summary

Problems solved by technology

However, the existing police aviation devices generally use pre-twisted wire clamps to fix them on the lightning protection cables. During installation, it is necessary to manually pass through equipment such as pulleys, helicopters, elevators, etc. to hang in the middle of the cables, which belongs to high-altitude operations, and construction is extremely inconvenient, dangerous

In addition, the installation quality will be different due to the different technical proficiency and responsibility of the construction personnel, and the fixed point of the pre-twisted wire clamp is exposed outside the police device, which is easily affected by the environmental climate and birds staying on the pre-twisted wire. Corrosion, loosening of pre-twisted wires, etc.

Especially in the environment of strong wind and snow, the spherical surface is hit by strong wind and loaded by snow, which will increase the load of overhead cables, leaving a safety hazard for the safe production and operation of transmission lines in the future

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