Treadmill tensioning mechanism convenient to operate

The utility model provides a treadmill tensioning mechanism convenient to operate, which comprises a treadmill body, a sliding component and an adjusting mechanism, the sliding assembly comprises two fixing plates and an assembling plate, the two fixing plates are installed at the end, away from the front roller, of the rack in a spaced mode, the assembling plate is arranged between the two fixing plates, the end of the assembling plate is slidably connected with the fixing plates, an assembling groove is formed in the side, away from the front roller, of the assembling plate, and the rear roller is rotatably installed in the assembling groove. According to the treadmill, the connection mode between the rear roller and the machine frame in an original treadmill body is changed through the arranged sliding assembly, the position of the rear roller on the machine frame can be changed, the sliding assembly is controlled through the additionally arranged adjusting mechanism, and then the position of the rear roll