Patent ID: 11879473
Assignee: BESTWAY INFLATABLES & MATERIAL CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. An air pump comprising:
a housing comprising a first vent and a second vent;
a main air pump disposed in the housing and configured to pump fluid into and out of the first vent;
an air-supplementing pump disposed in the housing and configured to pump fluid into a supplementing port in the housing;
an air pressure sensor disposed in the housing and configured to sense a pressure via a pressure-measuring port in the housing, the air pressure sensor comprising a sensor housing, a moveable membrane, and a pushing member configured to move in a moving direction in conjunction with a movement of the moveable membrane, and at least one pin extending from the sensor housing in a direction substantially orthogonal to the moving direction and configured to cooperate with an insertion hole in the housing;
a controller disposed in the housing and electrically connected to the main air pump, the air-supplementing pump, and the air pressure sensor, wherein the controller is configured to:
control the a main air pump to stop pumping based on the air pressure sensor detecting a threshold pressure during operation of the main air pump; and
control the air-supplementing pump to start pumping based on the air pressure sensor detecting a pressure lower than the threshold pressure when the main air pump is not in operation.