Oral cavity dilator

The utility model discloses an oral cavity dilator, including the oral cavity dilator body, top and the bottom difference first ring of fixedly connected with and the second ring of oral cavity dilator body, the top cover of first ring is equipped with first connection rope, the one end fixedly connected with casing of first ring is kept away from to first connection rope, the bottom cover of second ring is equipped with the second and connects the rope, and the one end fixedly connected with rubber slab that the second ring was kept away from to the rope is connected to the second, and the top of rubber slab is run through to the inside of casing. The utility model discloses a setting up first ring, second ring, first connection rope, casing, second connection rope, rubber slab, fixed block, fly leaf, first spring, draw -in groove, baffle, spliced pole, briquetting and second spring, having solved current oral cavity dilator and placed in user's oral cavity, do not allow easily fixable, appear the problem th