What safety devices are needed for recreational equipment?

What are the safety devices to be done for safety equipment? The restraint device should be reliable, bound, and direct contact with the people without the appropriate flexibility. The binding device should be designed so that it is easy to adjust if it is caught or crushed by a certain part. Easy to operate. The binding device should be securely fastened to the structural parts of the amusement equipment. In the normal working conditions must be able to bear the maximum force. The design of the adult free zone trampoline park shall have a design drawing, calculation book, instruction manual and a complete construction drawing in accordance with the relevant national standards. The design of the amusement equipment, in addition to considering the permanent load, variable load, must also take into account the earthquake and other special loads and temperature on the overall structure of the impact. free zone for trampoline park and ancillary facilities of the design, should be calculated correctly, reasonable structure, to ensure safe ride. Can not be accurate calculation, the experimental data can be used to check. Amusement equipment design should specify the machine and the main components of the design life, machine life of not less than 23000h.