Peristaltic pump pistol

Abstract

The peristaltic pump streaming/spraying pistol comprises a shroud with a battery, a motor, and a hose. The hose is connected with a sinking weighted ball at one end and a streaming/spraying nozzle at another end. A wall and a rotating disc, which is at least partially surrounded by the wall, are inside the shroud. Equidistant rollers for pressing the hose are mounted on the rotating disc. Between the rollers and the wall, there is a pressing channel for the hose. When in use, the battery starts the motor to drive the rotating disc. At the same time, the rollers on the rotating disc continuously press the hose and rapidly extrude the air out of it, so that a negative pressure is created in the hose. Due to the atmospheric pressure, the liquid will enter the hose from sinking weighted ball and will stream/spray out from the discharge nozzle.

1 . A peristaltic pump pistol comprising: a shroud at least partially enclosing a battery, a motor, and a hose; a first end of the hose is connected to a weighted ball while a second end of the hose is connected to a nozzle; a wall and a rotating disc are disposed inside the shroud, the rotating disc is at least partially surrounded by the wall and is driven by the motor; a plurality of equidistant rollers for compressing the hose are mounted on the rotating disc; a pressing channel is disposed between the rollers and the wall, and the hose is disposed within the pressing channel. 
     
     
         2 . The peristaltic pump pistol of  claim 1  wherein the motor is mounted outside the wall. 
     
     
         3 . The peristaltic pump pistol of  claim 2  wherein the motor drives the rotating disc with a gear box. 
     
     
         4 . The peristaltic pump pistol of  claim 1  further comprising a plurality of equidistant rotating disc flange bulges mounted on the rotating disc. 
     
     
         5 . The peristaltic pump pistol of  claim 4  wherein the rotating disc is coupled to a cover plate, the cover plate including a plurality of equidistant cover plate flange bulges opposing the rotating disc flange bulges. 
     
     
         6 . The peristaltic pump pistol of  claim 1  wherein the hose is a silicon tube. 
     
     
         7 . The peristaltic pump pistol of  claim 1  wherein the nozzle is rotatable with respect to the shroud to switch between a streaming and a spraying position. 
     
     
         8 . The peristaltic pump pistol of  claim 1  wherein the weighted ball includes a plastic outer casing and a ceramic ball disposed within the plastic outer casing, the plastic outer casing includes a water intake and is connected to the hose.