Bacterial expands banks up container intake air modulation device with earth

The utility model discloses a bacterial expands banks up container intake air modulation device with earth, including first preforming and second preforming, first guide arm and second guide arm, set up in second preforming top and with second preforming parallel arrangement's third preforming and running through perpendicularly the third preforming and with the perpendicular screw rod of connecting of second preforming, the screw rod with third preforming threaded connection, first preforming with the third preforming respectively with the both ends fastening of first guide arm and second guide arm, the second preforming with first guide arm and second guide arm sliding fit, expose in the one end of the screw rod of third preforming one side is provided with the twist grip, the surface of twist grip is provided with the skid resistant course. This structural design, pass through screw rod adjustment second preforming and the interval between the first preforming that can be convenient come the realization to the control of intake pipe air input, the utility model discloses simple structure, the air input size is convenient for control by convenient operation.