Wheelchairs were invented to facilitate movement and care for patients. Now there is a manual stair climbing wheelchair specially designed for climbing stairs. So let me introduce to you the principle of manual stair climbing wheelchair.

1. Principles of manual stair-climbing wheelchairs

1. Ordinary wheelchairs do not have the ability to climb stairs and roadblocks, so the range of activities of patients with lower limb paralysis and the elderly using wheelchairs is greatly restricted. Big restrictions. In order to solve this problem and take into account the current economic situation of most wheelchair users in China, the crawling device should not be too complicated. Jingyi Rehabilitation Research Center of Tsinghua University first developed a manual stair climbing wheelchair.

2. Typically created by adding a set of stair climbing actuators and drive systems to a wheelchair. This means you can move on flat ground and use the strength of your arms to move the wheelchair up and down stairs. The schematic diagram of a stair climbing wheelchair is shown in Figure 1. The main feature is that a set of stair actuators composed of parallelogram mechanisms are provided on both sides of an ordinary wheelchair.

3. The two equal-length connecting rods (cranks 3 and 8) of each set of mechanisms are fixedly connected to the gears (4, 10) with the same number of teeth and are driven by the chain 7. Four cranks are installed on both sides, and each end of the connecting rod (i.e., the stair climbing rod 9) has a "leg", four "legs" and the original four wheels of the wheelchair. The two sets of supports form a system.

4. When the handlebar 1 is shaken and the four cranks are rotated synchronously through a series of transmission mechanisms, two sets of support systems are guided to the ground, while the other set of support systems is located above (or next) to complete Stair flight that is lifted to the steps. You can adjust the inclination of the wheelchair seat and backrest so that the wheelchair remains level when climbing stairs. In order to reduce the height of the wheelchair's center of gravity during stair climbing and increase stability and safety when climbing stairs.

2. What are the wheelchair brands?

1. Yuyue YUYUE: National trademark, Chinese brand product, Jiangsu Province high-tech enterprise, medical device manufacturing company, Jiangsu Yuyue Medical Device Co., Ltd. company.

2. Hubang wheelchair: Designed and manufactured by Shanghai Hubang Medical Machinery Co., Ltd., the company is China's largest wheelchair manufacturer, headquartered in Shanghai, and now has two large wheelchairs. A professional production factory specializing in the production of wheelchair products, each other's production of technologically advanced wheelchairs has won a good reputation and reputation in the market and has been welcomed and supported by many people.

3. Dr. Gao is a comprehensive commercial enterprise integrating R&D, design, production and retail services. Its brand positioning is "Medical household medical device expert". Stay true to the mission of expansion. We will adhere to the spirit of innovation, continue to introduce advanced R&D technology and production technology to enterprises, and create a first-class medical device brand.

The above is a detailed introduction to the principles and brands of manual stair climbing wheelchairs in this article. The editor here recommends that if you have elderly people or patients with inconvenient legs and feet at home, you can consider buying a manual stair climbing wheelchair, so that climbing stairs will not be strenuous. if.