Fixing clamp

The invention discloses a fixing clamp which comprises a fixing base. A plurality of fixing plates are arranged at the two sides of the bottom of the fixing base. A plurality of first through holes are formed in each fixing plate. The fixing base is of a convex structure. The fixing base is of a cavity structure. A locking shaft is arranged on the lower portion of the fixing base. One end of the locking shaft penetrates through one side of the fixing base and further extends to the inner side of the fixing base to be fixedly connected with a gear sleeve. The gear sleeve is arranged in the middle of the locking shaft in a sleeving mode. The locking shaft is connected with the inner wall of the fixing base through a first bearing in a rotating mode. A concave hole is formed in the bottom ofthe inner side of the fixing base. A first spring is arranged at the inner side of the concave hole. A clamping bar is arranged at one end of the first spring. The clamping bar penetrates through theconcave hole and further e