Adjusting mechanism for gap between gear and rack of steering gear

The invention belongs to the technical field of automobiles, and discloses a steering gear rack gap adjusting mechanism which comprises a pressing block, a spiral spring and an adjusting screw plug, the pressing block is arranged in a steering gear shell in a sliding mode, one end of the pressing block abuts against a rack, and a first rubber ring and a second rubber ring are embedded in the side wall of the pressing block; the first rubber ring and the second rubber ring are in interference fit with the inner wall of the steering gear shell, a buffering cushion is embedded in the end, away from the rack, of the pressing block, one end of the spiral spring abuts against the pressing block, the adjusting screw plug is adjustably arranged in the steering gear shell, and one end of the adjusting screw plug abuts against the end, away from the pressing block, of the spiral spring. The end, abutting against the spiral spring, of the adjusting screw plug abuts against the buffering cushion. The gear and rack gap ad