That blots machine prevents suck -back device

The utility model discloses a that blots machine prevents suck -back device relates to and blots quick -witted technical field. The utility model discloses a that blots machine prevents suck -back device, including going into the outlet boxes body and going out the outlet boxes body, it is provided with the filtration baffle that blocks water to go into the outlet boxes body and go out between the outlet boxes body, block water and filter the baffle and can prevent moisture to enter into out the outlet boxes body from going into the outlet boxes body the bottom intercommunication of going into the outlet boxes body has the water -drain mast, the water -drain mast stretches into go into the water tank of outlet boxes body below. The utility model provides a that blots machine prevents suck -back device can overcome in the past moisture and inhaleed the motor, destroys or influence the insulation of motor, the problem in the life -span of reduction motor.