Ultrasonic probe protection structure

The utility model discloses an ultrasonic probe protection structure which comprises a probe body, a wear-resistant ring and a positioning ring, a plurality of guide blocks are arranged on the side face of the probe body, and vertical guide holes are formed in the guide blocks; the probe body is sleeved with the wear-resisting ring, the lower end of the wear-resisting ring is provided with a plurality of wear-resisting blocks, the wear-resisting blocks and the guide blocks are arranged in a staggered mode, the wear-resisting blocks at least partially stretch out of the lower end of the probe body, a guide rod is arranged between every two adjacent wear-resisting blocks, the guide rods are matched with the guide holes, and the guide rods are sleeved with springs; the positioning ring sleeves the upper end of the wear-resistant ring, a threaded hole is formed in the side wall of the positioning ring, and a jackscrew is arranged in the threaded hole. The guide block, the wear-resistant ring and the positioning r