47results about How to "There will be no dumping" patented technology

The application discloses a caterpillar type vertical circulating three-dimensional children bookshelf, which comprises a bearing plate and a bottom moving structure, the bottom of the bearing plate is fixed with the bottom moving structure, the two sides of the top of the bearing plate are fixed with a plurality of hydraulic cylinders, the top of the hydraulic cylinder is rotationally connected with a back-shaped frame through a rotary connecting seat, and the bottom of the back-shaped frame is fixed with a counterweight; the inside of the back-shaped frame is connected with a plurality of book storage structures through a vertical circulating structure. The bottom moving mechanism is designed, so that the automatic movement can be realized during use, the device has certain climbing function, can cross a certain height threshold, and will not fall during crossing, so as to facilitate the use of children. The vertical circulating mechanism can make the book storage structure vertically circulate and lift, so as to facilitate the quick taking and arranging of the books stored on different book storage brackets by children.