The special detachable (hook arm) garbage truck produced by Chengli Group has the core advantage of "one truck with multiple boxes and quick changing of compartments", completely solving the pain point of low efficiency of traditional garbage trucks in the single cycle of "loading transportation unloading". It is the core function of centralized collection and transportation of medium and large-scale environmental sanitation, suitable for multi-point and decentralized garbage collection and transportation scenarios such as urban streets, residential areas, industrial parks, etc., greatly improving the turnover rate of garbage collection and transportation. The core specialized device of the vehicle is a high-strength hook arm, which relies on a mature hydraulic drive system to achieve rapid separation and connection between the carriage and the chassis. The operating efficiency is outstanding, and a single hanging and unloading operation only takes 2-3 minutes, without waiting for the garbage bin to be emptied. It can achieve continuous cycle operation, greatly reducing the idle time of the vehicle and lowering the operating cost of environmental sanitation.