Quick-connection self-locking method for working mechanisms of same-series multifunctional vehicles in underground coal mine

The invention belongs to the technical field of coal mine underground multifunctional vehicles, and particularly relates to a coal mine underground same-series multifunctional vehicle working mechanism quick-connection self-locking method. The device comprises a switching device body, the switching device body comprises a first side connected with a power vehicle body and a second side connected with a working mechanism, the upper portion of the first side of the switching device body is detachably connected with a power vehicle body connecting mechanism, and a power side inserting plate connecting plate is arranged on the lower portion of the first side of the switching device body; the power side inserting plate connecting plate is detachably connected with the power vehicle body connecting mechanism; the power vehicle body connecting mechanism is fixedly connected with the power vehicle body; the upper portion of the second side of the switching device body is connected with upper-end round steel of the wo