The present invention relates to a buoyancy unit for cage farms, wherein the buoyancy unit for cage farms includes a first binding portion in which a space portion into which a buoyant body is inserted is formed, and a buoyant body made of steel inserted into the first binding portion. , The second binding portion is provided to be spaced apart from the first binding portion, a second binding portion formed of the same structure as the first binding portion, a buoyant body of the synthetic resin material inserted into the second binding portion, and the first binding portion And a connection frame coupled between the second binding portion and the second binding portion to connect the first binding portion and the second binding portion, and coupled to an upper surface of the connection frame, and a footrest coupled to enable height adjustment through a height adjustment means. , The height adjustment means is coupled to the upper end of the first binding portion, a hinge frame hingedly coupled to one end of the footrest, and vertically coupled to the upper end of the second binding portion, a plurality of coupling holes in the vertical direction, etc. It comprises a height adjustment frame formed to be spaced apart from each other and a support piece that is selectively coupled to a height of the height adjustment frame and height-adjusted, and supports the other end of the scaffold coupled to the hinge frame. The structure has a remarkable effect that the buoy is easy to install, maintains a stable installation, and can apply a buoyant body having various sizes of diameters.본 발명은 가두리 양식장용 부구 유닛에 관한 것으로, 상기 가두리 양식장용 부구 유닛은, 내부에 부력체가 삽입되는 공간부가 형성되는 제1 결속부와, 상기 제1 결속부에 삽입되는 스틸재질의 부력체와, 상기 제1 결속부와 일정간격 이격되게 마련되며, 상기 제1 결속부와 동일한 구조로 형성되는 제2 결속부와, 제2 결속부에 삽입되는 합성수지재질의 부력체와, 상기 제1 결속부와 제2 결속부 사이에 결합되어 상기 제1 결속부와 제2 결속부를 연결하는 연결프레임과, 상기 연결프레임의 상면에 결합되며, 높이조절수단을 통해 높이조절이 가능하게 결합되는 발판을 포함 하되, 상기 높이조절수단은, 상기 제1 결속부의 상단에 결합되며, 발판의 일단과 힌지결합되는 힌지프레임과, 상기 제2 결속부의 상단에 수직방향으로 결합되며
