Injection mold convenient to fix

The utility model discloses an injection mold convenient to fix, which comprises a mold base and a mold cover positioned at the top of the mold base. The mold base, the mold cover, the protruding block, the clamping block, the clamping groove, the shell, the first through hole, the second through hole, the control assembly, the fixing assembly, the stroke rod, the sliding block, the sliding groove, the spring and the stroke hole are used in cooperation, the control rod is driven by pressing the control block, and the connecting rod is driven by movement of the control rod; the bosses drive the transmission blocks and the fixing blocks to move through the connecting rods, the two fixing blocks move towards the two sides respectively, appropriate space is reserved, the clamping blocks are arranged at the appropriate positions, the control blocks are loosened, the transmission blocks drive the fixing blocks to be inserted into the clamping grooves through the springs, the clamping blocks are fixed, and therefore