Forest fire prewarning device

Abstract

The invention discloses a forest fire prewarning device which comprises a lifting column and a turning head connected with the top end surface of the lifting column in a rotating fit manner, wherein the lifting column comprises an upper lifting column, a middle plate and a lower lifting column; the middle plate is arranged between the upper lifting column and the lower lifting column; spiral cavities are respectively formed in the upper lifting column and the lower lifting column; spiral columns are mounted in the spiral cavities in a threaded fit manner; the spiral columns are connected withthe upper and lower end parts of a motor in a power fit manner, and the motor is fixedly mounted in the inner wall body of the middle plate; sliding shrinkage cavities are symmetrically formed in positions, which are located on the left sides of the spiral cavities, in the inner wall bodies of the upper lifting column and the lower lifting column respectively; sliding shrinkage rods are mounted inthe sliding shrinkage cavities in a sliding fit manner; each of the sliding shrinkage rods penetrates out of the end surface of one side of each of the upper lifting column and the lower lifting column, and is fixedly connected with each of the upper and lower end surfaces of the middle plate.

Description

technical field [0001] The invention relates to the technical field of fire early warning, in particular to a forest fire early warning device. Background technique [0002] The occurrence of forest fires is usually divided into two aspects. The first is man-made: smoking, picnics, etc., and the second is caused by spontaneous combustion of methane, lightning, material extrusion, high temperature and dry spontaneous combustion. At present, my country's forest fires The overall monitoring methods are relatively backward. In order to reduce or avoid forest fires, fire alarms are usually installed in mountainous areas. The fire alarms currently used usually use commercial power. The project of pulling wires in mountainous areas is relatively large, which requires a lot of manpower and material resources. The installation steps are cumbersome and the monitoring angle range is small. Contents of the invention [0003] The object of the present invention is to provide a forest fi...

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Problems solved by technology

[0002] The occurrence of forest fires is usually divided into two aspects. The first is man-made: smoking, picnics, etc., and the second is caused by spontaneous combustion of methane, lightning, material extrusion, high temperature and dry spontaneous combustion. At present, my country's forest fires The overall monitoring methods are relatively backward. In order to reduce or avoid forest fires, fire alarms are usually installed in mountainous areas. The fire alarms currently used usually use commercial power. The project of pulling wires in mountainous areas is relatively large, which requires a lot of manpower and material resources. The installation steps are cumbersome and the monitoring angle range is small

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