The lotion bottle has a leak-proof lotion pump surrounded by the peripheral wall of the main column

The existing lotion bottle has a leak-proof lotion pump surrounded by the peripheral wall of the main column. It consists of the outer ring and the inner ring located inside the outer ring. The inner ring is sleeved outside the body to prevent the lotion bottle from flowing out of the lotion bottle from the gap between the body and the lock cover due to transportation vibration and other reasons when the lotion bottle is in a closed state.





The problem of the existing lotion pump is that when the lotion pump is in the open state, the body, the piston and the lock cover form a space. Since the lotion will enter the above-mentioned space from the vent or other gaps during transportation, when the lotion bottle is opened, the lotion When the spring rebounds after the pump is squeezed, the emulsion in the space needs to be discharged through the vent.

However, the existing lotion pump has a small number of vents and a small opening area. When the lotion covers the vents, the pushing force provided by the spring to the piston is not enough to offset the tension of the lotion and discharge the lotion in the space, and then drive the main body. The column, sub-column and pressing head move smoothly, resulting in slow rebound after pressing the pressing head and abnormal operation of the lotion pump.