Digestive endoscopy flushing fluid injector

The utility model discloses a digestive endoscopy flushing fluid injector which comprises an injection cylinder, a push rod, a rubber plug I and a kettle. The rubber plug I is sleeved with the syringeand is hollow, the bottom of the rubber plug I is horizontal, and the two ends of the rubber plug I incline oppositely to form an inverted trapezoid. At least two groups of liquid outlet ring openings are formed in the inclined inner walls on the two sides of the bottom of the rubber plug I according to the height; the interior of the push rod is hollow to form a liquid injection cavity; the endpart of the push rod is provided with a rubber plug II, the rear part is provided with a push ring I, and the tail part is connected with a funnel; an opening communicated with the liquid injection cavity is formed in the end part of the rubber plug II; the rubber plug II is sleeved in the rubber plug I; the end part of the rubber plug II is in an arc shape matched with the inclined wall of the rubber plug I; a liquid outl