Ramp Type Wheelchair Push On/off Device

In order to facilitate the entry and exit of the disabled, the barrier free design of the public transportation system began to be applied to buses. For example, Solaris Bus Company in Poland, Ankai Bus Company in Britain and Higer Bus Company in China have all designed and developed ramp type wheelchair push on and off devices. After the bus stops stably, an anti-skid board with the same width as the car door will automatically extend from the bus door, which will be placed between the vehicle and the road surface to form a ramp. People with lower limb disabilities need to complete the boarding and alighting process with the assistance of ordinary people. The car is equipped with dedicated seats for disabled and elderly people, and there is also space for wheelchair storage. This convenient device for people with lower limb disorders to get on and off the vehicle has advantages such as simple structure and low manufacturing cost, but there are still many shortcomings. According to the "Technical Requirements for Accessible Low Floor and Low Entry City Bus" and internationally recognized accessibility design standards, the slope of the ramp between the vehicle and the road surface should not exceed 12%, but at the same time, the vehicle's chassis should not be too low, resulting in a longer length of the ramp between the vehicle and the road surface and occupying a larger space outside the vehicle itself, So the limitations of this structure's application have also increased.