Portable cleaning instrument for fixed orthodontics of oral cavity

The utility model relates to the technical field of oral cavity cleaning, and discloses an oral cavity fixing orthodontic portable cleaning instrument which comprises a sealed cleaning instrument body, a power source and a vibration driving assembly are arranged in the cleaning instrument body, and a vibration output shaft matched with a brush head to drive bristles to vibrate is arranged at the upper end of the cleaning instrument body. The vibration output shaft is driven by a vibration driving assembly; a liquid storage bin is detachably installed at the lower end of the cleaning instrument body, a water injection opening with a sealing cover is formed in the side wall of the liquid storage bin, a water supply pipe communicated with a water pump assembly located in the cleaning instrument body is arranged in the liquid storage bin, and a water outlet assembly pipe matched with the brush head or the flushing head is arranged at the top of the cleaning instrument body. The cleaning instrument main body compr