Antidrip nozzle for plant protection unmanned aerial vehicle

Abstract

The invention relates to an antidrip nozzle for a plant protection unmanned aerial vehicle. The antidrip nozzle comprises a nozzle outer shell, and a separation mechanism and a drainage mechanism arearranged in the nozzle outer shell; the separation mechanism comprises a separation sleeve and a liquid separation sleeve; an annular high-pressure flowing clearance is formed between the separation sleeve and the inner wall of the nozzle outer shell; the outer wall of the liquid separation sleeve is connected with the separation sleeve in a sliding manner; separation holes are densely distributedin the wall surface of the liquid separation sleeve; buoyancy rings are arranged on the outer wall of the side, facing a liquid inlet pipe, of the top of the liquid separation sleeve in arrays; a valve rod is connected in the position, facing a drainage opening, of the bottom of the liquid separation sleeve through a connecting ring; the drainage mechanism comprises a drainage plate arranged at the end, facing the drainage opening of the separation sleeve, and an injection plate arranged at the axial end part of the nozzle outer shell; a drainage hole is formed in the middle of the drainage plate; a sealing valve block corresponding to the drainage hole is fixed to the valve rod; the injection plate is fixed to the drainage opening of the nozzle outer shell; an annular pressure dischargeclearance is formed between the injection plate and the drainage plate; and an injection opening is formed in the middle of the injection plate.

Description

technical field [0001] The invention relates to an anti-drip nozzle for a plant protection drone, which belongs to the field of unmanned plant protection machine equipment. Background technique [0002] In order to prevent the liquid medicine from dripping out of the pipe after the spraying equipment is turned off, an anti-drip nozzle is generally used. The anti-drip nozzle mainly passes through a rubber nozzle opening, and uses the driving pressure of the liquid medicine to open the rubber nozzle for spraying. The elastic force returns to the position. After spraying for a long time, it is easy to leak due to the wear of the rubber nozzle. Moreover, the traditional rubber nozzle has a large flow resistance, a large pressure loss of the sprayed liquid, and poor wind resistance. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the technical problems of low air outlet pressure and poor durability of the rubber ant...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the technical problems of low air outlet pressure and poor durability of rubber anti-leakage nozzles in the prior art, and to provide an anti-drip nozzle for plant protection drones

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