Novel oral irrigator pump body and oral irrigator

The utility model discloses a novel oral irrigator pump body and an oral irrigator. The novel oral irrigator pump body comprises a pump body, a sealing sleeve connected with an opening of the pump body in a sealing mode and a transmission connecting rod fixedly connected with the sealing sleeve. The sealing sleeve comprises a middle movable part fixedly connected with the transmission connecting rod, a diaphragm component and at least one piston component, the diaphragm component and the piston component are arranged on the outer surface of the middle movable part in a surrounding mode at intervals in the length direction of the middle movable part, the diaphragm component and an opening of the pump body are fixed in a sealed mode, and the piston component extends into the pump body. And the piston is in sliding connection with the inner wall of the pump body. The sealing performance of the pump body is improved through the diaphragm component design of the sealing sleeve, the recoil sealing effect is achieve