Suspended micro optical cable quick connection connector and connection method

The connection connector comprises a tubular shell, an inner tube, two tail sleeves and a buoyancy outer cover, the tubular shell is divided into an inner tube connecting part and tail sleeve connecting parts arranged at the two ends of the inner tube connecting part, a strip-shaped opening penetrating through the two ends of the inner tube is formed in the tube wall of the inner tube, and the two tail sleeves are connected with the buoyancy outer cover through the strip-shaped opening. The inner tube is arranged in the inner tube connecting part of the tubular shell, the inner end parts of the two tail sleeves are in threaded connection in the tail sleeve connecting part of the tubular shell, the inner ends of the two tail sleeves respectively abut against the two ends of the inner tube, the inner cavities of the two tail sleeves are communicated with the inner cavity of the inner tube, and the outer buoyancy cover completely covers the tubular shell and the two tail sleeves. The device is simple in structur