Self-leveling and balancing vehicle

A self-leveling and balancing vehicle comprising:

• a moving and driving mechanism including two longitudinal moving seats formed at its two sides, a connecting frame extending to connect said longitudinal moving seats and two sector gears installed on said two longitudinal moving seats respectively;
• a driving motor fixed under the top of said connecting frame, the driving motor having a driving shaft extending to said two sector gears;
• a level sensor installed on said connecting frame;
• two level driving gears being installed on two ends of said driving shaft and engaged with said two sector gears;
• a balance driving gear box being installed on said driving shaft, the balance driving gear box having an output shaft extending to locate at said connecting frame and can be rotated freely, two driven gears being installed on two ends of said output shaft;
• a base including two guiding rails or guiding grooves paralleled with moving direction of the vehicle, said longitudinal moving seats can be mounted on the two guiding rails or guiding grooves respectively, further two racks being fixed between and paralleled with the two guiding rails or guiding grooves, the driven gears on said output shaft being engaged with the two racks;
• once the vehicle running up or down a slope, the level sensor can start the driving motor automatically to drive the driving shaft to make the level driving gears can be rotated along the sector gears to adjust the chair or carry platform on the connecting frame to level position, meanwhile, the two driven gears installed on the output shaft of the driving gear box can be rotated reversely with the driving shaft and moved forward or backward along the racks to make the moving and driving mechanism move simultaneously along the guiding rails to balance position.