Inspiratory air -suction type tomato of bi -polar seed metering cylinder of growing seedlings

The utility model discloses an inspiratory air -suction type tomato of bi -polar seed metering cylinder of growing seedlings, include hollow shaft, hollow shaft sleeve, malleation cavity, quick -operation joint, malleation pipe, sealing washer, sprocket and partly cut open the cylinder that the formula was processed. It has litter type through -hole to open on its cylinder, hollow shaft and malleation cavity structure as an organic whole, and malleation pipe one end is installed on the hollow shaft, and the other end passes through the quick -operation joint connection and communicates on the malleation cavity and with inside, and negative pressure gas and inside the drum intercommunication are linked to the both ends of hollow shaft, and the opening is through rubber strip and cylinder inner wall sealing contact below the malleation cavity. The utility model discloses a negative pressure is got kind of a malleation and is charged seed and settle the hole, and the malleation cavity falls into two positive and