Abstract: A vertically hand palm pressing suction device for a piston breast pump includes a casing and a piston suction member. The device is provided with a pressing handle, which goes through the casing and is fixedly connected with a gear shaft mounted on a base. A piston of the piston suction member is connected to a toothed rack. The pressing handle and the toothed rack are operatively connected through a gear member, wherein the connection converts up-and-down movement of the pressing handle into forth-and-back movement of the piston.

Abstract: A piston-type breast pump includes a piston-type pumping device, a DC motor, a gear reducer, and a control circuit board arranged in a housing. A gears rocking block (12) is connected with the piston-type pumping device, and far-near points induction chips and a buffering spring are provided between the block (12) and the reducer. A journey induction wheel is arranged at the motor shaft. A speed adjustment knob (35), a journey adjustment knob (34), a fast suck galactagogue button (33), and a suction adjustment screw are provided at the outer surface of the housing. The main body of the breast pump is a vertical design, and is constructed with a recessed bottle location (37), and the bottle holder (36) is removable.

Abstract: A vertically hand palm pressing suction device for a piston breast pump comprises a casing (3) and a piston suction member. The device is provided with a pressing handle (1), which goes through the casing (3) and is fixedly connected with a gear shaft (5) mounted on a base (4). A piston (19) of the piston suction member is connected with a toothed rack (17). The pressing handle (1) and the toothed rack (17) are in transmission connection through a gear member, and the transmission connection converts up-and-down movement of the pressing handle (1) into forth-and-back movement of the piston (19).