Patent ID: 11089914

Abstract:
A liquid pump mechanism for a soap dispenser includes a pump body, and an outlet tube, an upper wave-shaped pad, a piston, a spring, an annular internal sleeve, and a lower wave-shaped pad which are sequentially disposed inside the pump body from top down. A dividing member formed in the pump body divides an inner cavity of the pump body into a main chamber and an inlet chamber. An outlet passage is formed in the outlet tube. The outlet tube and the main chamber are movably sealed and engaged. The piston divides the main chamber into a compatible chamber and a liquid soap chamber. An outlet hole communicating the outlet passage and the liquid soap chamber is disposed on the piston. An inlet hole communicating the liquid soap chamber and the inlet chamber is disposed on the dividing member. The upper wave-shaped pad is disposed between the outlet tube and the piston and movably closes the outlet hole. The lower wave-shaped pad is disposed between the annular internal sleeve and the dividing member and movably closes the inlet hole.