| CPC F04B 35/04 (2013.01) [F04B 9/02 (2013.01); F04B 17/03 (2013.01); F04B 19/22 (2013.01); F04B 35/01 (2013.01); F04B 39/0094 (2013.01); F04B 39/066 (2013.01); F04B 39/12 (2013.01); F04B 39/121 (2013.01); F04B 39/122 (2013.01); F04B 39/123 (2013.01); F04D 19/002 (2013.01); F04D 25/06 (2013.01)] | 6 Claims |
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1. A core of a dual-motor-driven inflatable pump, the core comprising:
a base having
an assembly portion;
a fixing portion connected to a side of the assembly portion; and
a receiving space formed in the base between the assembly portion and the fixing portion;
a cylinder disposed on the base and having
a cylinder body;
a cylinder head connected to the cylinder body to dispose the cylinder body on the fixing portion and having a check valve; and
a piston rod disposed in the cylinder body and extended in the receiving space via the fixing portion;
two electric motors disposed on the assembly portion of the base at a spaced interval, and each one of the two electric motors having a drive shaft extended in the receiving space; and
a drive wheel set disposed in the receiving space of the base and having
a driven gear mounted in the receiving space of the base; and
two drive gears engaging with the driven gear, and each one of the two drive gears having a diameter smaller than a diameter of the driven gear;
wherein the two electric motors drive the two drive gears rotating to drive the piston rod to move reciprocatingly via the driven gear;
the cylinder body is disposed on an outer side of the fixing portion and has
a piston chamber formed in the cylinder body and having an opening formed through one of two sides of the cylinder body and facing the receiving space; and
an end segment formed on the other one of the two sides of the cylinder body opposite to the opening of the piston chamber and having a valve hole formed through the end segment;
the cylinder head is mounted around the cylinder body, is securely connected to the fixing portion of the base, and has
a cover having a mounting space located around the cylinder body; and
an end cap formed on an end of the cover, abutted against the end segment of the cylinder body, and having
an outlet channel formed in the end cap and communicating with the valve hole; and
an outlet tube formed on the end cap and communicating with the outlet channel;
the check valve is mounted in the outlet channel to control opening and closing of the valve hole; and
the piston rod is mounted in the piston chamber of the cylinder body and extends into the receiving space via the fixing portion.
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