Arrangement for automatically balancing an electric
wheelchair, which arrangement comprises an electric
wheelchair, wherein the electric
wheelchair comprises a seat arrangement (10), a rear wheel arrangement (20) and a front wheel arrangement (30), wherein the electric wheelchair is equipped with two drive units (40) which supply the electric wheelchair with propulsion power during travel, characterized by that the seating arrangement (10) comprises a chair frame (11) equipped with two armrests (12), a
user interface (13), a seat
cushion (14), a backrest (15), a battery (16) and a main
control unit (17), wherein the main
control unit (17) is connected to a
gyroscope (171) and a speed sensor (172), measures the ground angle with the
gyroscope (171) and then transmits the measured result to the main
control unit (17), wherein the main control unit (17) can adjust the rear wheel arrangement (20) according to the different ground angles by means of the telescopic adjustment, wherein the battery (16) supplies power to the main control unit (17), the rear wheel arrangement (20), the front wheel arrangement (30) and the drive units (40) so that the main control unit (17), the rear wheel arrangement (20), the front wheel arrangement (30) and the drive units (40) can all operate smoothly; that the rear wheel
assembly (20) has two sets of support tubes (21) which are installed on both sides of the rear of the chair frame (11) and extend obliquely downwards, wherein each set of support tubes (21) has an outer tube (211) and an inner tube (212), wherein the outer tube (211) and the inner tube (212) are inserted into one another and connected to each other by means of a telescopic device (213), wherein the movement of the telescopic device (213) enables the inner tube (212) to move coaxially and telescopically within the outer tube (211), wherein a rear wheel (22) is rotatably mounted at the respective distal end of each set of support tubes (21), and that the front wheel
assembly (30) comprises two actuators (31) and two front wheel frames (32), wherein the two actuators (31) are each mounted on both sides of the front area of the lower surface of the seat frame (11), and each front wheel frame (32) comprises a main body section (321) and an extension section (322), wherein the main body section (321) is arranged horizontally and is inserted through the
actuator (31) so that the main body section (321) can be driven by the
actuator (31) and thereby be able to move horizontally, wherein the extension section (322) extends obliquely downwards from one end of the main body section (321) so that the extension section (322) and the support tube set (21) together form a spread, wherein a front wheel (33) is rotatably mounted at the distal end of the extension section (322) of each front wheel frame (32).