Home oxygen-compression apparatus

An oxygen-compression apparatus comprising:

• a driving device having a driving shaft with a central axis;
• multiple rotating wheels eccentrically attached on and rotated with the driving shaft and located respectively at different angles relative to the central axis of the driving shaft ;
• multiple driving rings rotatably mounted respectively around the rotating wheels;
• multiple rocking cylinders connected respectively to the driving rings, having different compression ratios and each having
• a housing with an inner space;
• and
• a piston rod having a first end extending into the inner space of the housing to form a compression chamber in the inner space and a second end connected to a corresponding one of the driving rings;
• multiple connecting hoses respectively connected between the compression chambers of adjacent rocking cylinders,
• an input hose connected to the compression chamber of a first of the rocking cylinders and adapted to be connected to an oxygen source;
• an output hose connected to the compression chamber of a second of the rocking cylinders;
• and
• a base supporting the rocking cylinders,
• wherein the housings of the rocking cylinders are pivotally attached to the base, wherein
• three said rotating wheels are mounted on the driving shaft;
• and
• the rotating wheels are located at 120° relative to each other and the central axis of the driving shaft, further comprising multiple check valves attached respectively to the hoses to form a one-way passage between the hoses and the compression chambers of the cylinders, further comprising
• an oxygen concentration detecting device connected to the input hose to detect the concentration of the oxygen supplied from the oxygen source, and
• the detecting device comprising
• a buffer tank;
• a filter connected to the buffer tank;
• an oxygen sensing unit connected to the filter to detect the concentration of the oxygen;
• and
• a restrictor connected to the input hose and electrically connected to the oxygen sensing unit.

An oxygen-compression apparatus comprising:

• a driving device having a driving shaft with a central axis;
• multiple rotating wheels eccentrically attached on and rotated with the driving shaft and located respectively at different angles relative to the central axis of the driving shaft;
• multiple driving rings rotatably mounted respectively around the rotating wheels;
• multiple rocking cylinders connected respectively to the driving rings, having different compression ratios and each having
• a housing with an inner space;
• and
• a piston rod having a first end extending into the inner space of the housing to form a compression chamber in the inner space and a second end connected to a corresponding one of the driving rings;
• multiple connecting hoses respectively connected between the compression chambers of adjacent rocking cylinders,
• an input hose connected to the compression chamber of a first of the rocking cylinders and adapted to be connected to an oxygen source;
• an output hose connected to the compression chamber of a second of the rocking cylinders;
• and
• a base supporting the rocking cylinders,
• wherein the housings of the rocking cylinders are pivotally attached to the base, further comprising
• multiple check valves attached respectively to the hoses to form a one-way passage between the hoses and the compression chambers of the cylinders, and further comprising
• an oxygen concentration detecting device connected to the input hose to detect the concentration of the oxygen supplied from the oxygen source, and the detecting device comprising
• a buffer tank;
• a filter connected to the buffer tank;
• an oxygen sensing unit connected to the filter to detect the concentration of the oxygen;
• and
• a restrictor connected to the input hose and electrically connected to the oxygen sensing unit.

An oxygen-compression apparatus comprising:

• a driving device having a driving shaft with a central axis;
• multiple rotating wheels eccentrically attached on and rotated with the driving shaft and located respectively at different angles relative to the central axis of the driving shaft;
• multiple driving rings rotatably mounted respectively around the rotating wheels;
• multiple rocking cylinders connected respectively to the driving rings, having different compression ratios and each having
• a housing with an inner space;
• and
• a piston rod having a first end extending into the inner space of the housing to form a compression chamber in the inner space and a second end connected to a corresponding one of the driving rings;
• multiple connecting hoses respectively connected between the compression chambers of adjacent rocking cylinders,
• an input hose connected to the compression chamber of a first of the rocking cylinders and adapted to be connected to an oxygen source;
• an output hose connected to the compression chamber of a second of the rocking cylinders;
• and
• a base supporting the rocking cylinders,
• wherein the housings of the rocking cylinders are pivotally attached to the base, further comprising
• an oxygen concentration detecting device connected to the input hose to detect the concentration of the oxygen supplied from the oxygen source, and the detecting device comprising
• a buffer tank;
• a filter connected to the buffer tank;
• an oxygen sensing unit connected to the filter to detect the concentration of the oxygen;
• and
• a restrictor connected to the input hose and electrically connected to the oxygen sensing unit.