Over-temperature warning nut

Abstract

The invention discloses an over-temperature warning nut which comprises a nut body, a temperature sensing glass ball fixed to the top end of the nut body, a terminal with the bottom end being fixedlyconnected with the top end of the temperature sensing glass ball, a spring cover, a pull rod, a pressure spring and a warning strip. The terminal is in a cylinder shape with the top end open and the bottom end closed, and a through hole is formed in the bottom end of the terminal. An opening in the top end of the terminal is covered with the spring cover, and the spring cover is fixedly connectedwith the temperature sensing glass ball through the mode that the pull rod penetrates through the through hole. The pressure spring is arranged in the terminal, and the two ends of the pressure springare connected with / make contact with the bottom ends of the spring cover and the terminal correspondingly. The two ends of the warning strip are connected with the inner walls of the spring cover andthe terminal correspondingly. According to the over-temperature warning nut, bolt fastening and over-temperature warning effects can be achieved simultaneously, influences on equipment are avoided, potential safety hazards are eliminated, and applicability is high.

Description

technical field [0001] The invention relates to the technical field of temperature monitoring, in particular to an over-temperature warning nut. Background technique [0002] In the actual operation of power lines, due to loose bolts at the joints of connecting fittings, dirty contact surfaces, poor lead sealing of cable tail pipes, electrochemical corrosion of copper and aluminum, etc., the resistance is likely to increase. , It is very easy to cause the local temperature to be too high and cause various failures. However, the faults caused by connecting fittings are often not self-recoverable, requiring a lot of manpower and material resources for emergency repairs, which has a great impact on the power grid and society. [0003] Therefore, it is extremely necessary to carry out regular maintenance and monitoring on the connection fittings of the power line. The current main method is to conduct regular infrared temperature measurement on the connection fittings to find h...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an over-temperature warning nut in order to solve the technical defects of the prior art that are easily affected by the environment and the measurement accuracy of the connecting fittings is not high when monitoring the connecting fittings.

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