Pipe jacking construction protection device

The utility model belongs to the technical field of pipe jacking construction, and particularly relates to a pipe jacking construction protection device which comprises a protection outer clamping ring I, a protection outer clamping ring II and a protection inner adjusting clamping plate. The two sets of protective outer clamping rings I are arranged to be of a semicircular ring structure, the two sets of protective outer clamping rings I are detachably connected to form a complete circular ring structure, and a plurality of moving balls are evenly connected to the outer side walls of the protective outer clamping rings I in the circumferential direction in a rolling mode. And two groups of protection inner adjusting clamping plates are symmetrically and movably arranged on the two parts of the inner side of each protection outer clamping ring I in the radial direction of the protection outer clamping ring I. The device is convenient to mount and dismount, performs movable protection on jacking pipe transfer,