Air pump for air mattress
AssigneeDongguan Tiger Point, Metal & Plastic Products Co., Ltd.
InventorChun-Chung Tsai
Life of this patent
Estimating the term…
Abstract
An air pump manually rotated to inflate and deflate an air mattress has a housing, a first and a second air vents mounted on the housing, an air valve selectively actuated to block or open the second air vent, and a mounting rack in the housing. The mounting rack is rotated so that a first or a second air compartment in the mounting rack is aligned with the second air vent, and the air valve is propped up by an undulant baffle on the mounting rack to switch to one of inflation, deflation and pressure hold-up modes. Given the structure of the air pump, the first and second air vents are flexibly arranged and can be respectively mounted on a top and a bottom of the housing and directly aligned with mutually. Therefore, the air path is shortened to make the inflation and deflation faster and more efficient.
Claims7
An air pump for an air mattress, comprising:
- a housing having
- a chamber defined in the housing;
- a first air vent mounted on a top of the housing, communicating with the chamber and adapted to be exposed beyond an air mattress;
- and
- a second air vent mounted on a bottom of the housing, communicating with the chamber and adapted to communicate with the air mattress;
- a rotary mounting rack pivotally mounted in the chamber and having
- a first air compartment mounted to one end thereof;
- a second air compartment communicating with the first air compartment through a first opening formed through a first partition between the first air compartment and the second air compartment, communicating with the first air vent through a second opening formed through a second partition of the second air compartment opposite to the first partition and abutting the first air vent;
- an air outlet formed through a bottom of the first air compartment and directly aligned with the second air vent by rotating the mounting rack;
- an air inlet circularly juxtaposed with the air outlet on the mounting rack with respect to a pivot axis of the mounting rack, and formed through a bottom of the second air compartment and directly aligned with the second air vent by rotating the mounting rack;
- an undulant baffle formed thereon;
- and
- a blocking plate pivotally mounted on a pivot shaft of the mounting rack, covered on the second opening when the mounting rack is rotated and the air inlet is aligned with the second air vent, uncovered on the second opening when the mounting rack is rotated and the air outlet is aligned with the second air vent;
- a motor mounted inside the chamber and having an impeller mounted on a spindle thereof and located in the first air compartment;
- and
- an air valve mounted at the second air vent propped up by the air flow generated by the motor and the impeller while inflating and by the undulant baffle while deflating to open the second air vent.
Dependencies are inferred from the claim text.