Patent ID: 7854396
Filing Date: 2010-12-21
Classification: A01C,A01G,A01M,B05B

Abstract:
1. A sprayer, comprising a base, a container, a drive device, a pumping device, and an outlet pipe, wherein the base has an open top provided with a protruding hollow mounting portion and a plurality of recessed fixing brackets; the container is mounted on the base and has an open bottom provided with a protruding hollow mounting section mounted in the mounting portion of the base and a plurality of fixing plates secured in the fixing brackets of the base; the drive device is mounted on the base and includes: a drive shaft rotatably mounted on the base and having two opposite ends protruding outwardly from the base; a drive handle mounted on the drive shaft to drive and rotate the drive shaft relative to the base; the pumping device is mounted between the base and the container and includes: a pressure tank mounted in the container and having an inside provided with a pressure chamber; a piston cylinder mounted in the pressure tank; a barrel mounted on a lower portion of the piston cylinder; a piston movably mounted in the piston cylinder; a piston rod movably mounted in the barrel and connected with the piston to move the piston relative to the piston cylinder; two guard brackets combined with each other and each mounted on the barrel; a crank located between the two guard brackets and having a first end secured on and driven by the drive shaft of the drive device and a second end that drives and moves the piston rod relative to the piston cylinder; the outlet pipe has an end portion mounted on the pressure tank of the pumping device and connected to the pressure chamber of the pressure tank.