US 12,005,007 B2
Wheelchair for preventing secondary transmission of germs
Yunshun Li, Sichuan (CN); Mingqiu Du, Sichuan (CN); and Jinhai Yang, Sichuan (CN)
Assigned to Sichuan AST Medical Equipment Co., Ltd, Luzhou (CN)
Filed by Sichuan AST Medical Equipment Co., Ltd, Sichuan (CN)
Filed on Dec. 7, 2023, as Appl. No. 18/532,712.
Claims priority of application No. 202322717192.5 (CN), filed on Oct. 9, 2023.
Prior Publication US 2024/0115441 A1, Apr. 11, 2024
Int. Cl. A61G 5/02 (2006.01); A61G 5/10 (2006.01); A61G 5/12 (2006.01)
CPC A61G 5/021 (2013.01) [A61G 5/10 (2013.01); A61G 5/1018 (2013.01); A61G 5/125 (2016.11); A61G 5/128 (2016.11)] 13 Claims
OG exemplary drawing
 
1. A wheelchair for preventing secondary transmission of germs, comprising a seat (1), a driving mechanism (2), and antibacterial fabric (9); the drive mechanism (2) comprises a frame (21), front wheels (22), rear wheels (23), and drive wheels (24), wherein the frame (21) is fixedly connected to the seat (1), wherein an upper end of the frame (21) is fixedly connected to the seat (1); the two frames are fixed with each other by a fixing rod which constitutes a good support structure to provide a support base for the seat;
the front wheels (22), the rear wheels (23), and the drive wheels (24) are rotatably provided on the frame, wherein the front wheels (22) and the rear wheels (23) are provided on the left and right sides at the lower end of the front and rear of the frame (21), respectively; the front wheels (22) and the rear wheels (23) of the drive mechanisms on two sides constitute a four-wheeled support to form the basic mobile structure of the wheelchair; the drive wheels (24 are rotatably provided on the frame (21), above the front wheels (22) and the rear wheels (23), are not in direct contact with the front wheels (22) and the rear wheels (22), and have a higher height from the ground so that germs are not easy to adhere to the drive wheels (24);
the drive wheels (24) are not coaxial with the front wheels (22) and the rear wheels (23), no interference is disclosed between the drive wheels (24), the front wheels (22), and the rear wheels (23), and the drive wheels are connected to the rear wheels (23) by transmission;
the drive wheels (24) are sleeved thereon with the antimicrobial fabric (9);
further comprising active wheels (25) and a transmission belt (27);
between the active wheels (25) and the transmission belt (27), the outer sides of the active wheels (25) are provided with a safety guard board (11); and the safety guard board (11) is rotatably connected to a first axle bar (252) via a first bearing (251), while a pin is provided in the inner side of the safety guard board (11) and embedded into and fixed to the drive wheels (24); the safety guard board (11) is rotated synchronously with the drive wheels (24); and the safety guard boards form a barrier to the hand, thereby avoiding involvement between the active wheels (25) and the transmission belt (27); and
drive wheels 24 are sleeved with antimicrobial fabric (9); seat (1), armrests (7), and push handles (8) are all provided thereon with the antimicrobial fabric (9); and the antimicrobial fabric (9) has an antibacterial effect and eliminates an odor due to bacteria and the antimicrobial fabric avoids reproduction of bacteria and plays a role in reducing the risk of re-transmission, which prevents bacterial residues on the drive wheels (24), the seat (1), the armrests (7), and the push handles, thereby avoiding infection.