Abstract: An air pump having a rotatable chamber in simultaneous communication with a valve and a switch during inflation and deflation of an inflatable device. The air pump housing has a rotatable knob connected to a rotatable chamber. The rotatable chamber has a ramp bisecting the rotatable chamber into a primary compartment and a secondary compartment. During inflation, the rotatable chamber is in communication with a valve and the port of the secondary compartment diverts the airflow from an opening of the rotatable knob in a direction into the inflatable device when the rotatable chamber is rotated to a primary position. During deflation, the rotatable chamber is in communication with a valve and a port of the primary compartment diverts the airflow out of the inflatable device, whereby, the airflow is exhausted through an opening of the rotatable knob when the rotatable chamber is rotated to a secondary position.

Abstract: A push-button air pump includes a casing, a blower device, and a push button device. A top panel of the casing is formed with a first inflation opening and a first deflation opening. The push button device includes an inflation button and a deflation button. The lower portion of the casing is formed with a second inflation opening and a second deflation opening. The inflation button and the deflation button are adapted to control inflation and deflation. This simplifies the complicated structure of the traditional turn-knob control. The size of the product becomes smaller. The way for inflation and deflation is simple, and the operation is convenient.