What kinds of stair climbing electric wheelchairs are there?
The stair-climbing electric wheelchair can help the elderly go up and down the stairs, avoiding the elderly who live in the stair room and cannot go out for a long time. - Generally speaking, there are three main types of stair-climbing electric wheelchairs on the market:
1. Star wheel type
The stair-climbing mechanism of the star-wheel stair-climbing wheelchair is composed of thousands of small wheels evenly distributed on the "Y", "five-star" or "ten"-shaped tie rods. Each small wheel can rotate around its own axis
The line rotates on its own, and can revolve around the central axis together with the tie rod. When walking on flat ground, each small wheel rotates on its own, and when climbing stairs, each small wheel revolves together, thereby realizing the function of climbing stairs. Stair climbing wheelchairs with star wheel mechanism, no matter it is Y-shaped, cross-shaped or five-star-shaped, because the wheel base and depth of the star wheel are fixed, and the height and width of the stairs are different, it is prone to misalignment and slipping during crawling. Security risks. Domestic star-shaped wheel stair climbers do not have anti-skid braking functions, and need manpower to lead the bow 1 to prevent it from sliding down when going up and down the stairs. For a wheelchair with a dead weight of nearly 50 kg and the weight of the human body, it will be difficult to control once slipping occurs. Therefore, the safety of the star wheel mechanism stair climbing machine still needs to be improved, but because of its simple structure and low cost, there is still a certain market in families with poor economy.
There are also many kinds of star-wheel stair-climbing wheelchairs, most of which use two sets of star-wheels consisting of 3, 4 or 5 small wheels. Star-wheel stair-climbing wheelchairs are not safe and large in size. And it is difficult to use on all residential stairs (there are restrictions on the width and height of the steps), so it is difficult to popularize.
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