| Wheelchairs are a means of transportation for people with disabilities and an important tool in helping them exercise and participate in social activities. An ideal wheelchair plays an important role in improving the quality of life of disabled people and helping them to undergo rehabilitation training. Especially in today's urban barrier-free environment, the question of how to design a wheelchair to meet the needs of barrier-free use has become a common problem in society. focus. According to 2015 data, the total number of people with disabilities in the world is more than 1 billion, which is about 15% of the population, of which 600 million are in Asia. Wheelchair design analysis: Generally speaking, the structural components of a wheelchair include seats, brakes, wheels, and other assistive devices. Wheelchairs currently sold in the market are broadly divided into four categories: electric wheelchairs, manual wheelchairs, regular wheelchairs and special wheelchairs. Among them, electric wheelchairs and manual wheelchairs occupy the largest market share. In today's urban barrier environment, regardless of the type of wheelchair, the following aspects should be considered in the design: Peculiarity: Functionality is the most important attribute of a wheelchair. The functional design of conventional wheelchairs is mainly based on mobility aids for people with disabilities. Among them, the meaning of mobility is to allow consumers to travel normally on barrier-free roads. Currently, most wheelchairs on the market have small diameter front wheels, making it difficult to negotiate short obstacles. Therefore, designers should consider the above issues when designing wheelchairs that will help people with disabilities operate a wheelchair independently. safety: The design principles of a wheelchair should be to ensure functional practicality and structural safety, namely: the seat cushion is designed according to the shape, curve and size of the user's buttocks; The design of the backrest follows the principles of safety and comfort, and the angle of the backrest can be adjusted as needed, so that the user does not experience physical discomfort due to sitting stiffly for a long time; An anti-tip wheel is installed at the rear of the stroller, which prevents the stroller from tipping over after setting the backrest angle to a certain inclination. |