Folding trailer

A folding trailer comprises a vertical rod assembly comprising a first fixed vertical pipe, a second fixed vertical pipe, a third fixed vertical pipe, and a fourth fixed vertical pipe,

• wherein the vertical rod assembly further comprises a top angle fixing member which is respectively fixed on tops of four vertical pipes and a linkage sliding sleeve which is gliding connected with the four vertical rods, respectively;
• left and right folding assemblies are arranged between the second and fourth fixed vertical pipes and between the first and third fixed vertical pipes, the first and second fixed vertical pipes and the third and fourth fixed vertical pipes are provided with front and rear folding assemblies;
• the left and right folding assemblies comprise a first side cross tube and a sixth side cross tube rotationally matched with the top angle fixing member, respectively,
• the left and right folding assemblies also comprise a second side cross tube and a fifth side cross tube rotationally matched with the linkage sliding sleeve, respectively,
• the left and right folding assemblies also comprise a third side cross tube and a fourth side cross tube rotationally matched with the first side cross tube and the sixth cross tube, respectively;
• the front and rear folding assemblies include a first cross bend tube and a first cross straight tube that are rotationally matched with the top angle fixing member, respectively,
• the front and rear folding assemblies also comprise a second cross bend tube and a second cross straight tube rotationally matched with the linkage sliding sleeve, respectively;
• a handle assembly is also arranged between the first fixed vertical pipe and the second fixed vertical pipe,
• the handle assembly includes two sleeves at bottoms of the first and second fixed vertical pipes, respectively;
• wherein a fixed rod sleeve that is rotationally matched with the two sleeves is arranged at a cross center of the two sleeves, and a third telescopic cylinder is fixed at a center of the fixed rod sleeve,
• the third telescopic cylinder is provided with a second telescopic cylinder on top of which a first telescopic cylinder is fitted, a handle is fixed on a top of the first telescopic cylinder.