Handheld Electric Sprayer with Negative-Pressure Soft Liquid Bag

原文（中国語）

A handheld electric sprayer with a negative-pressure soft liquid bag includes a sprayer body, wherein a motor and a plunger pump assembly are arranged in the sprayer body, a transmission mechanism rotatably connected with the motor is arranged in the sprayer body, a slider is arranged between the transmission mechanism and the plunger pump assembly, and limiting parts are arranged between the slider and the sprayer body; the plunger pump assembly includes a piston rod, and when the motor drives the transmission mechanism to rotate, the slider drives the piston rod to stretch and retreat; a storage device detachably is arranged on an outer side of the sprayer body, and the storage device is connected with the plunger pump assembly; and a pressure relief device is arranged on the plunger pump assembly, and a return passage is arranged between the pressure relief device and the storage device.