Structure provided with ratchet wheel assembly and used for preventing clamping rope from loosening

The utility model discloses a structure provided with a ratchet wheel assembly and used for preventing a clamping rope from loosening, which comprises a rotating shaft used for driving a forward rotating and reverse braking ratchet wheel to rotate, and the ratchet wheel is matched with a braking structure to prevent a steel wire rope from falling off due to reverse movement of a wedge used for clamping the steel wire rope. The brake structure comprises a pawl matched with the ratchet wheel for braking and a push-off handle matched with the pawl, and the brake structure is used for releasing reverse braking force of the ratchet wheel. The device has the beneficial effects that the structure is small in occupied space, time-saving and labor-saving, the ratchet wheel assembly is used for preventing reverse rotation, motor braking and manual operation are replaced, operation is simple, maintenance and repair are convenient, and it is ensured that the wedge does not move reversely to cause falling of the steel wir