Holding vessel fixing frame

A container fixing frame comprises a base, an upper extending rod is arranged on the base, a fixing mechanism is arranged on the upper extending rod in a sleeving mode, a fine adjustment mechanism is arranged on the fixing mechanism, and a clamping mechanism is arranged on the fine adjustment mechanism. A movable sleeve is arranged on the fixing mechanism and is arranged on the upper extension rod; the fine adjustment mechanism comprises a pair of L-shaped plates installed on the movable sleeve, an I-shaped plate is arranged between the L-shaped plates, a plurality of inserting holes are formed in the two sides of the I-shaped plate, guide sleeves are installed at the two ends of the L-shaped plates, inserting plates penetrate through the guide sleeves, the inner side ends of the inserting plates penetrate through one inserting hole, acting tables are arranged at the outer side ends of the inserting plates, key-shaped holes are formed in the acting tables, and the key-shaped holes are communicated with the ke