The invention provides an automatic stair climbing wheelchair. The wheelchair comprises clamping jaws, clamping jaw frames, first connecting chain plates, clamping jaw push plates and the like, and ischaracterized in that the two clamping jaws are both in the shape like the Arabic number 5, the two clamping jaw frames are both of a structure similar to N and are fixedly installed on two first telescopic electric cylinders respectively, and telescopic rods of the two first telescopic electric cylinders are fixedly connected with the two clamping jaw push plates respectively; four first slidingblocks are in sliding connection with the clamping jaw push plates respectively, and the four first connecting chain plates are hinged to the four first sliding blocks and the two clamping jaw framesrespectively. Electric push rods are utilized to drive the mechanical clamping jaws to grasp a stair handrail so that people can be safely protected when accidents happen to the wheelchair, and casualties caused by faults of the wheelchair are avoided; the wheelchair is driven to go upstairs and downstairs alternately through rotation of a motor and walking wheels, and the action of safely and reliably going up and down stairs with different inclinations can be achieved; the horizontal state of a wheelchair seat can be achieved at any moment through a posture adjusting device so that people can be in a comfortable posture all the time.

Automatic stair climbing wheelchair

The invention discloses a wheelchair capable of walking up and down stairs. The wheelchair capable of walking up and down the stairs comprises a seat body part (100), two seaming wheel parts (200), two front wheel parts (300), two connecting parts (400) and two rear wheel parts (500); the seat body part (100) comprises a seat plate (101), a backrest (102) and two armrest frames (103); the rear edge of the seat plate (101) is fixedly connected to the lower edge of the backrest (102), and the backrest (102) forms an included angle with the seat plate (101); the two armrest frames (103) are fixedly arranged at the two sides of the seat plate (101) respectively, and the rear vertical edges of the two armrest frames (103) are fixedly connected to the two vertical edges of the backrest (102) respectively; the two rear wheel parts (500) are fixedly arranged at the outer sides of the two armrest frames (103) respectively; the two seaming wheel parts (200) are fixedly arranged at the outer sides of the two rear wheel parts (500) respectively. The wheelchair capable of walking up and down the stairs can adapt to steps of stairs with different breadths and different heights.

Wheelchair capable of walking up and down stairs

The invention discloses a meshing wheel and a wheelchair with the meshing wheel. The meshing wheel comprises a first rotating shaft (201), a first transmission gear (202) and a hub (203), wherein the first rotating shaft (201) is fixedly arranged in the central position of the hub (203); the first transmission gear (202) is fixedly arranged on one side of the hub (203); a circular first adjusting plate (204) is fixedly arranged in the central position on the other side of the hub (203); a first shaft sleeve (205) is fixedly arranged in the central position of the first adjusting plate (204); a circular first cover plate (206) is fixedly arranged at the tail end of the first shaft sleeve (205); and one end of the first rotating shaft (201) penetrates through the hub (203), the first adjusting plate (204), the first shaft sleeve (205) and the first cover plate (206) in sequence, so that the first adjusting plate (204) and the first cover plate (206) can both rotate along with the hub (203) around the first rotating shaft (201). The meshing wheel is capable of being tightly meshed or clamped with stair steps of different widths and heights.

Meshing wheel and wheelchair with meshing wheel

The invention relates to a multifunctional wheelchair enabling independent travel. The multifunctional wheelchair comprises a wheelchair frame structure, and further comprises a power system, a wheel frame structure and a safety protection structure, wherein the wheelchair frame structure comprises a wheelchair body (1), a seat cushion (2) and a pedals (4); the power system comprises a storage battery (3) and a motor (9); the storage battery (3) and the motor (9) are arranged below the seat cushion (2); the wheel frame structure comprises universal wheels (6) and stair climbing structures (8); the universal wheels (6) function as front wheels of the wheelchair body (1), and the stair climbing structures (8) serve as rear wheels of the wheelchair body (1) and are connected to the motor (9); and the safety protection structure comprises supporting structures (5) and hand brakes (7); the supporting structures (5) are rotatably connected to the wheelchair body (1); the supporting structures (5) are folded and kept below the seat cushion (2) when the wheelchair is not used; and the hand brakes (7) are arranged on the stair climbing structures (8) when the wheelchair is used. In comparison with the prior art, the multifunctional wheelchair provided by the invention has the advantages of being capable of climbing stairs safely, light and convenient, intelligent, convenient for maintenance and the like.

Multifunctional wheelchair enabling independent travel

The invention discloses a wheelchair capable of moving upstairs or downstairs without help. The wheelchair comprises a wheelchair seat, a plurality of tire devices, a plurality of rocking wheel devices and an auxiliary stair climbing device. By means of the wheelchair, the environment obstacles for people who have difficulty in moving are reduced, people can promote the wheelchair to move upstairs or downstairs on their own without bothering others, the cost is lower, and the wheelchair is suitable for most consumer groups.

Chang Hong

Papers

Wheelchair capable of moving upstairs or downstairs without help