Key chain assisting in uncovering

The utility model discloses a key chain assisting in uncovering. The device comprises a lock catch with a waist-shaped outer contour, c-shaped lock catch through holes are formed in two waist-shaped ends of the lock catch; a rope belt is arranged in the two lock catch through holes in a penetrating manner; the shape of the cross section of the rope belt is matched with that of the lock catch through hole; a rectangular groove is formed in the middle in the lock catch; the rectangular groove is communicated with the lock catch through holes in two ends; two lock cylinders which are symmetrically arranged are placed in the rectangular groove; the two ends of the rope belt are sleeved with tail fixing rings, the outer contour size of the tail fixing rings is the size of the lock catch penetrating holes, at least one tail fixing ring is provided with key ring penetrating holes, keys are hung on the key ring penetrating holes, a rectangular key hole is formed in the lower end face of the lock catch, protrusions ar