How does a lotion pump work?

Lotion pumps are widely used in personal care, cosmetics, medicine and food industries. They are responsible for extracting lotions or liquid products from containers for users to use. Understanding the working principle of lotion pumps will help us better use and choose suitable products. This article will introduce the working mechanism and components of lotion pumps in detail.

1. Basic structure of lotion pumps
Lotion pumps usually consist of the following main parts:

Pump body: The outer shell of the pump, which protects the internal components and provides structural support.

Pump head: The part used to press and release liquid, usually connected to the pump body.

Piston or valve: The key component responsible for liquid extraction and release, which determines the flow direction and flow rate of the liquid.

Pipeline: The pipeline connecting the pump head and the liquid container is responsible for transmitting liquid.

2. Working principle
The working principle of lotion pumps mainly depends on pressure changes and mechanical action. The following is a brief description of its working process:

Pressing the pump head
When the user presses the pump head, the internal piston or valve is squeezed and the space inside the pump body is reduced. At this time, the liquid in the container is forced into the pump body due to the pressure difference.

Forming negative pressure
When pressing the pump head, the liquid in the pump is pushed to the outlet. At this time, negative pressure is formed inside the pump body, and the liquid in the container will flow into the pump body through the pipe, ready for the next use.

Release the pump head
When the user releases the pump head, the pressure in the pump gradually returns to normal pressure, and the liquid is ejected through the outlet of the pump head to form a spray or droplets, which is convenient for the user to evenly apply or spray.

3. Flow and regulation
The flow of the lotion pump can usually be adjusted by the design of the pump head and the pressing force. Some high-end pumps have the function of adjustable flow, and users can adjust the rotation angle or pressing force of the pump head as needed to achieve different liquid output. This flexibility makes the lotion pump more convenient in the use of various products.

4. Application examples
Lotion pumps are widely used in:

Personal care: such as shampoo, conditioner, lotion, etc., to provide a convenient use experience.
Cosmetics: such as creams, essences, etc., to ensure the hygiene and accurate measurement of products.
Pharmaceutical industry: such as disinfectants, ointments, etc., to provide contactless use to avoid cross contamination.
Food industry: such as sauces, oils, etc., to precisely control dosage.