Small inflatable pump is also known as a small inflator, small pump, small inflator, miniature vacuum pump, it is a kind of inflatable tools, through the operation of the motor to work. When the motor is running and pumping, the valve of the connector is opened by the air pressure of the atmosphere, and the gas enters the pump chamber, and when pumping into a certain volume, the valve is closed by the air pressure in the cylinder, and the gas enters the volume. The inflatable pump is also considered to use the principle of atmospheric pressure to inflate. Application areas of the inflatable pump: gas sampling, gas circulation, vacuum adsorption, accelerated filtration, automotive vacuum booster and other occasions, in the medical, health, scientific research, environmental protection and other fields have been widely used.