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Structure of handheld ultra-low volume electric sprayer
- 2020-04-13-

The handheld ultra-low-volume electric sprayer uses a battery to drive the micro-motor to rotate at a high speed, and transport the chemical solution to the disc with high-speed reversal. The speed is sprayed out and collides with the still air to crush into mist particles with a diameter of 50-loo microns. Then, the natural wind force is used to blow the droplets to the surface and depth of the crop stems and leaves. Because the mist particles are small and even, they can float to the front and back of the stems and leaves of the crop with the airflow, so the insecticidal effect is remarkable.

Generally, the machine has the following components: spray head: connected with a miniature electric motor to touch a plastic disc, so that the plastic disc rotates at 6000-8000 rpm. So what are the main structures of handheld ultra-low volume electric sprayers?

  1. Liquid delivery pipe: It is equipped with several interchangeable fog nozzles or flow control valves to control the various flows required during work.

  2. Hollow plastic tube: some tubes can be filled with 1 dry batteries.

  3. Plastic bottle: It is connected to the liquid delivery tube. Due to the effect of gravity, the liquid medicine is sent to the nozzle plate.

  4. The impeller is one of the key parts of the handheld ultra-low-volume electric sprayer, which directly affects the spray quality. The impeller is composed of a front impeller and a rear impeller, and the front and rear impellers are connected by eight fixed pins. On the rear impeller, there are 1. 5 mm thick shoulders on each side of each pin hole to ensure that there is a certain distance between the two after the front and rear impellers are assembled. After the front and rear impellers are installed, press one end of the micro motor shaft to allow the impeller to rotate.

  5. Both the front and rear impellers are disc-shaped, mainly to avoid the dripping or direct flicking of the medicine adhered to the surface of the impeller, causing harm. In order to make the fog spots more uniform, the outer edges of the two impellers are engraved with 36. A small half-pyramid-shaped tooth, which reduces the adhesion of the film attached to the outer surface of the impeller, and becomes the initial launch point of the fog point when flicking away, so that the liquid medicine regularly throws out filaments along it.

  6. One end of the liquid-proof sleeve is a hole with a diameter of 7 mm, which is tightly fitted with the front impeller shaft; the other end extends into the groove of the end of the motor casing to prevent the motor shaft from being exposed to contact with the liquid rust. The anti-liquid sleeve rotates together with the impeller at high speed, which can throw out the chemical liquid splashed on it to prevent the chemical liquid from penetrating into the motor and causing corrosion. Grease can also be applied in the liquid-proof sleeve to increase bearing lubrication and improve the service life of the motor.

  7. The nozzle bracket is in the shape of a national cylinder, and it is set in the handle tube. A medicine bottle holder is installed in the upper fork. There are two round holes with a diameter of 4 mm on the lower side of the fork, which cooperate with the five semi-circular grooves on the ear shoulder of the medicine bottle support, so that the nozzle body has five different rotation angles, which can be adjusted according to the work requirements. There is a circular hole with a diameter of {{2}}. 2 mm in the fork for threading.