Trampoline and sports device

A trampoline, comprising:

• an elastic plate, wherein the elastic plate comprises a first end and a second end, and a portion, located between the first end and the second end, of the elastic plate is an elastic energy accumulator;
• a supporting unit, wherein the supporting unit comprises supporting bodies arranged at the first end and the second end of the elastic plate, and the supporting bodies are capable of supporting the elastic plate and tensioning the first end and the second end of the elastic plate;
• during bending deformation of the elastic plate, the supporting bodies are subjected to elastic deformation, or first supporting-plate ends, connected with the elastic plate, of the supporting bodies rotate and horizontally displace relative to second supporting-plate ends, away from the elastic plate, of the supporting bodies to accumulate potential energy, and the first end generates a symmetrical turning angle change with respect to the second end;
• during deformation recovering of the elastic plate, the supporting bodies apply reset force to the first end and the second end by utilizing the potential energy, so that displacement of the elastic energy accumulator in a horizontal direction is limited during the bending deformation and deformation recovering of the elastic plate;
• wherein each of the supporting bodies comprises a roller, bottoms of the first end and the second end of the elastic plate are respectively connected with plate end supports of a plurality of plate end supports, the roller is rotatably connected with a corresponding plate end support of the plurality of plate end supports, an axis of the roller is perpendicular to a connecting line of the first end and the second end of the elastic plate;
• wherein the supporting body also comprises a roller support, a rolling groove matched with the roller is formed in the roller support, the roller is rotatably arranged in the rolling groove and is movable horizontally in the rolling groove, and elastic buffer material is internally provided inside the rolling groove;
• wherein a restraint elastic member is arranged between the roller support and the corresponding plate end support to apply a reset force to the roller, wherein the restraint elastic member is a spring.