Portable unmanned chassis lifting device and using method thereof

The invention provides a portable unmanned chassis lifting device and a using method thereof.The lifting device is composed of a lifting mechanism, a supporting mechanism and a base mechanism, and the lifting mechanism comprises a base, a chassis supporting top, an outer lifting arm, an inner lifting arm, a fixing pin shaft, a connecting pin shaft, a matching pin shaft and an adjusting bolt; the fixing mechanism comprises an upper supporting cylinder, a lower supporting cylinder, an upper rotor, a lower rotor and a locking pin shaft. The base mechanism comprises a supporting column, universal wheels, a supporting beam and a rotating pin shaft. The device has the characteristic of being capable of being mounted and used at any time, has excellent portability and is easy to store; the lightweight design is adopted, the supporting mechanism is adopted for locking, the load pressure on the lifting mechanism is small after long-time lifting, the reliability is high, the bearing capacity is high, and the safety coe