The utility model relates to the technical field of gas springs, in particular to a
gas spring protection mechanism which comprises a cylinder body, a
piston rod is arranged in the cylinder body, a first protection
assembly is arranged on the top of the cylinder body, and a second protection
assembly is arranged in the cylinder body. By arranging the first protection
assembly, when the
piston rod is subjected to
pressure load and moves to a proper position during use, the limiting spring shrinks, and the limiting rod and the limiting sleeve are inserted to a proper position, so that the
piston rod is prevented from moving excessively, and the situation that the cylinder body is damaged or directly penetrates through the cylinder body due to excessive
insertion of the
piston rod is avoided; meanwhile, when the
piston rod is stretched to a proper position, the first rotating rod and the second rotating rod rotate, the
piston rod is prevented from being stretched excessively, the piston rod is prevented from being separated from the cylinder body, the
gas spring can be better protected, the service life of the
gas spring can be prolonged, the structure is simple, and operation is easy.