1 results about "Fixed ramp" patented technology

This utility model discloses a barrier-free assistive device for rail transit platforms, belonging to the field of rail transit technology. Its key technical features include a housing with a lifting mechanism inside. A protective mechanism is provided on the top of the lifting mechanism. The lifting mechanism includes a lead screw, which is located inside the housing. The top and bottom of the lead screw are rotatably connected to the inner wall of the housing via bearings. An internally threaded lifting plate is threaded onto the surface of the lead screw. Transmission plates are fixedly connected to the front and rear sides of the internally threaded lifting plate. This invention solves the problems of existing barrier-free assistive devices, which mostly involve fixed ramps or manually folding ramps. Fixed ramps require significant pushing force for wheelchairs to ascend and descend and are prone to slipping, resulting in poor safety. Manually folding ramps require manual unfolding and folding, which is cumbersome and fails to meet the needs for efficient, convenient, and safe barrier-free travel.