Device features no water agricultural sprayer

The utility model is a kind of no water agricultural sprayer, it uses the concertina tube to agricultural sprayers  the seal between piston and cylinder cover of the compressor, the sprayer does not run out of water, not dirty body, improve their working conditions, to lift the worries of farmers. 1 a no water agricultural sprayer, a liquid garden sprayers backpack  device and the air injection device, which is characterized in the piston rod air injection device and the sealing cover of the concertina tube, the snake tube in tube is fixed at the lower end of the piston rod, the rod, the use of cylinder cover is pressed on the cylinder the upper end of the pressure cylinder, divided into two regions, in the area of the cylinder cover is provided with a vent hole in the wall region is provided with garden hand sprayer  hole. According to claim 2 of the 1 agricultural sprayer, which is characterized by the concertina tube is made of elastic rubber bellows tube.