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

Claim 0:
1. An air pump comprising:
an air pump housing comprising a first vent, a second vent, and a partition member disposed in an accommodating chamber defined within the air pump housing;
a first check valve disposed on the air pump housing and configured to open or close the first vent;
a main air pump disposed in the accommodating chamber, the main air pump configured to inflate and deflate an inflatable body via the first vent;
an airway switching device being disposed in the accommodating chamber and connected to the main air pump, wherein the airway switching device is configured to:
selectively switch among an inflating state, a deflating state, and a closed state, and
selectively control the first check valve to open or close the first vent;

an air-supplementing pump disposed in the accommodating chamber and in fluid communication with the interior of the inflatable body to supplement air to the inflatable body;
a mechanical air pressure sensor disposed in a closed chamber within the accommodating chamber, the closed chamber defined by the partition member and the air pump housing, and configured to be in fluid communication with the inflatable body via a port in the air pump housing, the mechanical air pressure sensor comprising:
a sensor housing,
a moveable membrane,
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 at least one of the air pump housing and the partition member; and

a control device disposed in the accommodating chamber and electrically connected to the main air pump, the airway switching device, the air-supplementing pump, and the air pressure sensor, the control device configured to:
send a main air pump stop signal based on the air pressure sensor detecting a threshold pressure in the inflatable body during operation of the main air pump; and
send an air-supplementing pump operation signal based on the air pressure sensor detecting a pressure lower than the threshold pressure in the inflatable body when the main air pump is not in operation.