Portable rail manned inspection device

The invention discloses a portable rail manned inspection device which comprises a portable telescopic manned vehicle body and an inspection device, the manned vehicle body comprises a frame capable of stretching and retracting in the transverse direction and the longitudinal direction, a displacement module, a brake module, a red light band conduction module and a power module, and the stretching and retracting frame comprises a telescopic cross beam and a telescopic longitudinal beam; a rotatable red light band conduction device is arranged at the lower end of the vehicle body. The inspection device comprises a contact line detection module, a contact net suspension state detection module, a rail surface defect detection module, a remote positioning module, a data transmission module and a data processing module. By adopting the rollers in contact with the rail, whether the rollers are in contact with the steel rail or not can be selected during rail loading. Detection function modularization design is carr