Mining passive pyroelectric infrared sensor

Abstract

The invention discloses a mining passive pyroelectric infrared sensor which comprises a sensor shell, wherein, a sensor probe is arranged at the right end of the sensor shell; an aviation plug which is electrically connected with the sensor probe is arranged at the left end of the sensor shell; a bulb universal joint is arranged at the bottom of the sensor shell; a bulb positioned under the bulb universal joint is arranged in a spherical cavity which is formed by matching a bulb upper locking ring with a bulb lower locking ring, and a locking spacing is reserved between the upper locking ring and the lower locking ring; the bulb upper locking ring and the bulb lower locking ring are arranged in a cavity formed by matching an upper locking nut with a lower locking seat; the center of the top of the upper locking nut is equipped with an adjusting and limiting hole with a big upper end and a small lower end; and the upper part of the bulb universal joint penetrates the adjusting and limiting hole to connect with the bottom of the sensor shell. When in use, the orientation of the sensor probe can be adjusted by the bulb universal joint as required without moving location for reinstallation, thus the mining passive pyroelectric infrared sensor of the invention can be conveniently used.

Description

technical field [0001] The invention relates to a sensor, in particular to a passive pyroelectric infrared sensor on a mine automatic control sprinkling and dust suppression device. Background technique [0002] Mine automatic control sprinkler and dust suppression device is mainly used in coal mine underground transportation alleys, main intake and return air alleys and mining face intake and return air alleys, car yards, coal bunkers and other work places that require regular spraying for dust reduction or regular watering. Through automatic spraying or watering, it not only reduces dust and purifies the air, but also absorbs certain harmful gases, reduces the concentration of methane and the ambient temperature, improves and controls the dust operating environment, and prevents dust hazards. The usual mining automatic control sprinkler and dust reduction devices are equipped with passive pyroelectric infrared sensors. Its main function is to use human body induction to co...

AI Technical Summary

Problems solved by technology

[0003] However, the passive pyroelectric infrared sensors on the existing mine automatic control sprinkling and dust suppression devices are all fixedly installed on the corresponding positions of the mine automatic control sprinkler and dust suppression devices. When it is necessary to adjust the probe of the passive pyroelectric infrared sensor When facing in the same direction, the passive pyroelectric infrared sensor must be moved and reinstalled, which is extremely inconvenient

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