Abstract: A safety trampoline, including a trampoline frame, trampoline supporting legs, a jumping mat, springs and an elastic protective sleeve, wherein the jumping mat is connected to the trampoline frame through the springs; a periphery of the jumping mat is connected to connecting rings; the elastic protective sleeve is ring-shaped; a plurality of net holes are formed at a first end of the elastic protective sleeve; the connecting rings pass through the plurality of net holes to clamp the elastic protective sleeve between the springs and the jumping mat; and a second end of the elastic protective sleeve is turned to a bottom of the trampoline frame and an edge thereof is tied to cover upper parts of the springs. Through an arrangement of the elastic protective sleeve, the elastic protective sleeve and the jumping mat, or the elastic protective sleeve, the jumping mat and a trampoline pad are integrally connected.

Abstract: A trampoline frame connecting structure, a trampoline frame and a trampoline are provided. The trampoline frame connecting structure includes left and right frame traverse pipes, a mesh guard pipe, trampoline leg pipes and a connecting joint, wherein the connecting joint is a square pipe, positioning bulges are formed on left and right inner walls of the connecting joint, square nozzles are formed at ends of the left and right frame traverse pipes, an elongated positioning groove is formed on the left and right frame traverse pipes, and an interference fit is formed between the elongated positioning groove and the positioning bulges for a secondary positioning between the left and right frame traverse pipes and the connecting joint. A connection between the left and right frame traverse pipes and the connecting joint is stable and improves a positioning accuracy of a installed trampoline.