The invention discloses a stable hanging and separating mechanism of a pod rod for a
spacecraft, wherein the mechanism comprises an upper fixing ring, a lower fixing ring, an upper and lower ring connecting device, a sliding pin locking device, an action sensing device, a pin detacher and a pop-up separator. When the pod rod is fully extended to be in place, the lower end of a locking pin of the sliding pin locking device penetrates through a through hole formed in the pod rod and slides into a locking hole of the lower fixing ring, and the pod rod is locked by the mechanism; meanwhile, the action sensing device generates a triggering
electric signal, on one hand, a retractable pin of the pin detacher is triggered to withdraw, the upper fixing ring moves downwards, and thus, the pod rod hugging is achieved; on the other hand, the pop-up separator is triggered to be started, and separation of the structure is achieved. According to the stable hanging and separating mechanism of the pod rod for the
spacecraft, two technical means of using the sliding pin locking device and the movable upper fixing ring structure are combined, stable hanging of a
film structure on the pod rod can be achieved, and meanwhile, the stable hanging and separating mechanism has the advantages of being simple, effective, sensitive and reliable.