Be used for as cast adjustable suction to inhale sand device

The utility model discloses a be used for as cast adjustable suction to inhale sand device, the sand filter is connected to sprue one end, the gas flow regulating valve is connected to the sprue other end, gas flow regulating valve connecting pipe, big straw is connected at the sprue middle part, big straw side is provided with little straw and is connected with the sprue, the terminal connection valves A of big straw, valve A connection activity straw A, the big joint of activity straw A end -to -end connection, the terminal connection valves B of little straw, valve B connection activity straw B, the little joint of activity straw B end -to -end connection, the utility model discloses a design of double pipette has realized the operation condition of applicable difference, and function that gas flow switches is by a wide margin controlled two straws, activity straw respectively, is connected the detachable design through adopting two valves, has realized that gas flow is unchangeable in the sprue, and the f