Anti-fall mechanism and lifting transport apparatus

An anti-fall mechanism, applied to a lifting transport apparatus, the anti-fall mechanism comprising:

• a conveying platform, which is installed on a lifting belt of the lifting transport apparatus;
• a linkage, which comprises a first coupler, a second coupler and two rockers, wherein two ends of the first coupler are rotationally coupled to two ends of the second coupler, respectively, via the two rockers;
• an elastic mechanism, which is arranged between the conveying platform and the lifting belt, wherein one end of the elastic mechanism is connected to the first coupler, and the other end of the elastic mechanism is pressed by the lifting belt;
• a limit switch, which is arranged on the second coupler;
• a self-locking mechanism, which is arranged on the conveying platform and capable of locking and securing the conveying platform to a frame of the lifting transport apparatus;
• wherein when the lifting belt is in operation, the elastic mechanism is compressed, the limit switch extends, and the self-locking mechanism is in an unlocked state, and when the lifting belt breaks, the elastic mechanism is reset to drive the first coupler to move, which in turn drives the second coupler to retract the limit switch, such that the self-locking mechanism locks and secures the conveying platform.