Unmanned aerial vehicle flight anti-collision device

Abstract

The invention provides an unmanned aerial vehicle flight anti-collision device which comprises an air inlet flow channel, the air inlet flow channel is divided into a left channel and a right channel,recycling mechanisms are arranged in the left channel and the right channel correspondingly, a protection mechanism is arranged at the tail end of each recycling mechanism, and a trigger mechanism isarranged in each protection mechanism; each recycling mechanism comprises a thermoplastic flexible filter screen, the thermoplastic flexible filter screen is located in the air inlet flow channel, afixed filter plate is arranged below the thermoplastic flexible filter screen, filter holes are evenly formed in the surface of the thermoplastic flexible filter screen, vent holes are evenly formed in the surface of the fixed filter plate, the positions of the filter holes and the positions of the vent holes are completely staggered, one side of the left channel and one side of the right channelare each provided with a recycling ventilation pipe, and the upper ends of the two sets of recycling ventilation pipes penetrate through the air inlet flow channel and are located above the thermoplastic flexible filter screens. The device has the characteristics of high practicability and capability of assisting a unmanned aerial vehicle propeller in stably landing after being impacted.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle flight collision avoidance, in particular to an unmanned aerial vehicle flight anti-collision device. Background technique [0002] In recent years, agricultural unmanned helicopters have been more and more widely used in the field of domestic agricultural plant protection operations in recent years. Due to the advantages of light weight and flexible use, agricultural drones are not only suitable for open plains, but also suitable for Perform pesticide spraying and other operations in various complex areas such as mountains and hills; [0003] The working environment of the agricultural drone is in the field, so there will be more insects. During the working process of the drone, these insects are easily drawn into the drone by the airflow generated by the fan blades of the drone. On the fan blade, it will cause impact on the UAV fan blade. If things go on like this, it will cause...

AI Technical Summary

Problems solved by technology

[0003] The working environment of the agricultural drone is in the field, so there will be more insects. During the working process of the drone, these insects are easily drawn into the drone by the airflow generated by the fan blades of the drone. On the fan blade, it will cause impact on the UAV fan blade. If things go on like this, it will cause damage to the UAV fan blade, and even cause the UAV to fall during work, causing serious economic losses. Therefore, the design is practical and can It is necessary to assist the UAV flight anti-collision device to land smoothly after the UAV propeller is hit

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