A piston pump with a piston chamber-forming body and a piston-forming element relatively coaxially reciprocally movable to dispense liquid and air from a discharge outlet, which the discharge outlet is fixed relative to the piston chamber-forming body.

A foam dispenser includes a dispensing outlet, a pre-mixing chamber receiving liquid from a liquid source and air from an air source, a mixing chamber downstream of the pre-mixing chamber and proximate the dispenser outlet, and a first conduit coupling the pre-mixing chamber to the mixing chamber.

The present invention relates to the technical field of soap dispenser, particularly to a foam soap dispenser including a housing, a raw material chamber, and a liquid soap outlet, and further includes a water chamber, a drive device, and a foaming device; the liquid soap outlet is arranged on the housing; the raw material chamber, the water chamber, the drive device, and the foaming device are arranged inside the housing; a raw material chamber outlet and a water chamber outlet are connected to a foaming device inlet; a foaming device outlet is connected to the soap liquid outlet. The present invention can produce plentiful foam, and the piston assembly thereof is not easy to be stuck, and is provided with a longer service life. Moreover, the produced foam has a uniform size while the discharge speed of foam is faster and more stable than ever.

The present invention relates to the technical field of soap dispenser, particularly to a foam soap dispenser including a housing, a raw material chamber, and a liquid soap outlet, and further includes a water chamber, a drive device, and a foaming device; the liquid soap outlet is arranged on the housing; the raw material chamber, the water chamber, the drive device, and the foaming device are arranged inside the housing; a raw material chamber outlet and a water chamber outlet are connected to a foaming device inlet; a foaming device outlet is connected to the soap liquid outlet. The present invention can produce plentiful foam, and the piston assembly thereof is not easy to be stuck, and is provided with a longer service life. Moreover, the produced foam has a uniform size while the discharge speed of foam is faster and more stable than ever.

Various dispensing devices, such as foaming soap pumps, are disclosed. The soap pump can include a fluid storage unit and a fluid handling unit. The fluid storage unit can include a reservoir that is configured to hold a quantity of product, such as liquid soap. The fluid handling unit can include a pumping assembly and dispensing assembly. The soap pump can be configured to withdraw liquid soap from the reservoir, convert the liquid soap to foamed soap, and dispense the foamed soap from the discharge assembly.

Various dispensing devices, such as foaming soap pumps, are disclosed. The soap pump can include a fluid storage unit and a fluid handling unit. The fluid storage unit can include a reservoir that is configured to hold a quantity of product, such as liquid soap. The fluid handling unit can include a pumping assembly and dispensing assembly. The soap pump can be configured to withdraw liquid soap from the reservoir, convert the liquid soap to foamed soap, and dispense the foamed soap from the discharge assembly.

Automatic electric actuation of the pumping mechanism of a liquid dispenser apparatus is provided by configuring a hollow tube to cooperate with an electromagnetically driven actuator and further configuring the hollow tube to inter-fit with a stem of a liquid dispensing pump. Actuation of the actuator may, for example, drive the pump stem downwardly to cause a pumping action. Suitable actuators include, for example, solenoids, voice coil actuators and stepping motors.

Automatic electric actuation of the pumping mechanism of a liquid dispenser apparatus is provided by configuring a hollow tube to cooperate with an electromagnetically driven actuator and further configuring the hollow tube to inter-fit with a stem of a liquid dispensing pump. Actuation of the actuator may, for example, drive the pump stem downwardly to cause a pumping action. Suitable actuators include, for example, solenoids, voice coil actuators and stepping motors.

A piston pump with a piston chamber-forming body and a piston-forming element relatively coaxially reciprocally movable to dispense liquid and air from a discharge outlet, which the discharge outlet is fixed relative to the piston chamber-forming body.

A piston pump with a piston chamber-forming body and a piston-forming element relatively coaxially reciprocally movable to dispense liquid and air from a discharge outlet, which the discharge outlet is fixed relative to the piston chamber-forming body.