Oral cavity cleaning device

The utility model relates to the technical field of oral cavity cleaning, and discloses an oral cavity cleaning device which comprises a protection box, a handle installed on the outer wall of the protection box and a protection mechanism. The protection mechanism comprises a connecting rope, a sliding insertion plate and a cleaning head, the bottom of the inner wall of the protection box is fixedly connected with a telescopic spring, and the end, away from the bottom of the inner wall of the protection box, of the telescopic spring is fixedly connected with a limiting sliding plate. According to the oral cavity cleaning device, through the effect of the protection mechanism, according to the effect that the cleaning head is stored in the protection box, the cleaning brush on the outer wall of the cleaning head can be stably protected, the cleaning brush is prevented from being influenced by dust in external air, and correspondingly, the cleaning brush does not need to be cleaned during use every time; theref