Trampoline and elastic system

A trampoline, comprising:

• an elastic assembly having a first end and a second end, wherein a portion, located between the first end and the second end, of the elastic assembly is a bendable energy accumulator;
• and
• an elastic support including vertical supporting units and a horizontal supporting unit, wherein two of the vertical supporting units are separately arranged on the horizontal supporting unit, the two vertical supporting units are respectively connected with the first end and the second end of the elastic assembly via connecting units to bilaterally support and pre-tension the elastic assembly, and the elastic assembly, when being subjected to a bending deformation, is capable of making at least one of the vertical supporting units and the horizontal supporting unit to be subjected to an elastic bending deformation, so as to apply symmetrical elastic reset force to the first end and the second end of the elastic assembly, and limit a change of a horizontal distance between the first end and the second end during the bending deformation of the elastic assembly.