The utility model relates to the technical field of dragon boat bodies, and discloses a dragon boat with high boat body strength, which comprises a boat body, the left side and the right side of the outer wall of the boat body are fixedly connected with fixing plates, the inner walls of the fixing plates are fixedly connected with ball bearings, and the rear sides of the inner walls of the ball bearings are fixedly connected with screw rods. A sliding block is in threaded connection with the outer wall of the lead screw, fixing rods penetrate through the left side and the right side of the bottom of the outer wall of the sliding block, the fixing rods are fixedly connected to the rear side of the outer wall of the fixing plate, a kettle is fixedly connected to the top wall of the sliding block, and a
servo motor is fixedly connected to the inner bottom wall of the kettle; the output end of the
servo motor is fixedly connected with a sliding ring. According to the rubber
coating spraying device, the sliding ring enables the stirring rod to rotate, the stirring rod stirs a rubber
coating in the kettle, the
water pipe on the outer wall of the kettle plays a role in connection, the spraying head can spray the rubber
coating, the rubber coating can be evenly sprayed to the outer wall of the boat body,
friction force is increased, and the protection performance is improved.