Aiming at many disadvantages of general pumps being widely used

the innovative design for selfsucking pumps is done by UG platform and the motion simulation of self - sucking pumps is built with the parametric method in this paper. The interference between parts can be checked by motion simulation and simulating the motion process. The whole motion process of the self - sucking pump can be observed directly. The simulation can also be used to analyze the limit location

the space motion location and motion parameters. Simulation results show that the innovative design for self - sucking pumps is reasonable. The principle simulation is able to avoid some fatal mistakes efficiently in manufacturing and operating selfsucking pumps.