This creation is an internal air conditioning component of a raft tube, which is arranged at the end of a raft tube of a raft. The internal air conditioning component of the raft tube includes an outer cover, a sleeve and an inner cover. The sleeve is connected to the outer cover. And communicate with the through hole of the outer cover, the inner cover can be set at the through hole of the outer cover or the water injection port of the sleeve, and control the opening and closing of the through hole. Provide operators to remove the inner cover and control the amount of water injected or drawn into the through hole, so that the draught level of the raft can be adjusted according to the growth of the seedlings, so that the seedlings can Maintaining an appropriate growth water level in the breeding pond is not only more convenient in operation, but also can accurately control the draft water level of the raft, and at the same time effectively improve the growth quality of the pupae.本創作係一種筏管內部空氣調整組件，係用以設置於一筏體的筏管端部，該筏管內部空氣調整組件包含外封蓋、套管及內封蓋，套管連接外封蓋並連通外封蓋之通孔，內封蓋係可設置於外封蓋之通孔處或是套管之注水口處，並控制該通孔之啟閉，本創作筏管內部空氣調整組件能提供作業人員透過取下該內封蓋，並能藉由控制朝該通孔內注入或抽出的水量，使所述筏體之吃水水位能依據蚵苗的成長進行調整，進而讓蚵苗能在養殖池中維持於適當的生長水位，不但在操作上較為便利，且能精確地控制所述筏體的吃水水位，同時有效提高蚵苗的生長品質。
