High-pressure locking mechanism of adjusting screw

The high-pressure locking mechanism comprises the adjusting screw rod, a locking sleeve, a connecting sleeve and a fixing seat, a main body at the upper part of the adjusting screw rod is sleeved on a crankshaft, a screw rod part at the lower part of the adjusting screw rod is sequentially arranged in the locking sleeve and the fixing seat in a penetrating manner, and the screw rod part is provided with an external thread; inner threads matched with the outer threads are arranged in the shaft holes of the locking sleeve and the fixing base, the fixing base is fixed to the sliding block, the locking sleeve is connected with the fixing base through a connecting sleeve, the fixing base is sleeved with the connecting sleeve and connected with the connecting sleeve through the threads, and the locking sleeve is located in a stepped hole in the axis of the connecting sleeve. An oil cavity capable of injecting hydraulic oil is formed between the outer wall of the locking sleeve and the inner wall of the stepped hole