Abstract: An automatic liquid soap dispenser includes a liquid soap container which receives liquid soap therein and which has a bottom wall that is formed with an outlet port. A tubular body is secured to a bottom surface of the bottom wall such that a through-hole at a closed rear portion of the tubular body is aligned with the outlet port. The closed rear portion of the tubular body is further formed with an upright soap outlet adjacent to the through-hole. A movable blocking member is provided adjacent to said closed rear portion and is movable to block and unblock the through-hole so as to control the flow of the liquid soap through the soap outlet. The plunger has a piston which extends fittingly and movably into the tubular body via an open front portion of the latter, and a flexible shaft portion connected to the piston. A driving unit is activated by a detecting unit upon detection of a target.

Abstract: An automatic liquid soap dispenser includes a liquid soap container which receives liquid soap therein and which has a bottom wall that is formed with an outlet port. A flow control unit includes a plunger and a tubular body secured to a bottom surface of the bottom wall such that a through-hole at a closed rear portion of the tubular body is aligned with the outlet port. The closed rear portion of the tubular body is further formed with an upright soap outlet adjacent to the through-hole. A ball valve unit controls the flow of liquid soap through the soap outlet. The plunger has a piston which extends fittingly and movably into the tubular body via an open front portion of the latter, and a flexible shaft portion connected to the piston. An actuating unit includes an infrared unit for detecting a target, a driving unit activated by the infrared unit upon detection of the target, and a driving gear driven rotatably by the driving unit.