Air pump with internal automatic controller

An air pump with an internal automatic controller comprising:

• a housing having
• a first air port;
• a second air port;
• a third air port;
• a first one-way valve mounted to the first air port;
• and
• a second one-way valve mounted to the second air port;
• a low-pressure blower mounted in the housing and having a fourth air port communicating with the first air port;
• a high-pressure blower mounted in the housing and having a fifth air port communicating with the second air port of the housing;
• a first auto-stop controller mounted in the housing and having
• a first casing;
• a first air pressure sensing film securely mounted in the first casing and dividing an interior of the first casing into a first chamber and a second chamber, the first chamber communicating with an exterior of the first casing, and the second chamber communicating with the third air port;
• a pushing element mounted in the first chamber and having a driven end protruding out of the first casing;
• a swing rod pivotally disposed outside the first casing and having
• a first end facing the driven end of the pushing element;
• and
• a second end;
• a connecting rod having two ends, and one of the ends of the connecting rod pivotally connected to the second end of the swing rod;
• a rotation restricting element pivotally disposed outside the first casing, and having
• a first end pivotally connected to the other end of the connecting rod;
• a second end;
• and
• at least one limit portion formed on the second end of the rotation restricting element;
• at least one restoring spring mounted on the at least one limit portion of the rotation restricting element;
• a first micro switch disposed outside the first casing;
• the first micro switch electrically connected to the low-pressure blower and selectively switching the low-pressure blower on or off;
• rotational pressing rod rotatably disposed outside the first casing and having
• a pressing portion corresponding in position to and pressing against the first micro switch;
• and
• a positioning portion operating in coordination with the at least one limit portion, and the limit portion restricting rotation of the rotational pressing rod;
• and
• a first turning button mounted on the housing via a torsion spring and disposed outside the housing, and the first turning button selectively driving the rotational pressing rod to rotate causing the pressing portion to operate the first micro switch;
• and
• a second auto-stop controller mounted in the housing and having
• a second casing having an inner surface;
• a switching switch electrically connected to the high-pressure blower and selectively switching the high-pressure blower on or off;
• a second micro switch electrically connected to the high-pressure blower and selectively switching the high-pressure blower on or off;
• a second air pressure sensing film mounted in the second casing, selectively triggering the second micro switch, and having
• a peripheral edge attached to the inner surface of the second casing;
• an outer surface facing and disposed apart from the second micro switch;
• and
• an inner surface being opposite to the outer surface of the second air pressure sensing film;
• a third chamber surrounded by the inner surface of the second air pressure sensing film and the inner surface of the second casing, and communicating with the third air port;
• and
• an adjusting control mechanism selectively triggering the switching switch, and driving the second micro switch to move toward or away from the second air pressure sensing film, and the adjusting control mechanism having
• a bolt rotatably mounted outside the second casing and having a triggering protrusion, and the triggering protrusion selectively triggering the switching switch;
• a nut screwed on the bolt and being rotatable to move along an axial direction of the bolt;
• and
• a second turning button disposed outside the housing, and connected to and selectively driving the bolt to rotate;
• wherein the second micro switch is securely mounted on the nut and moves along with the nut.