Novel swivel stable in connection

The novel swivel stable in connection comprises a swivel body and a swivel bolt, an open groove is formed in the bottom of the swivel body, the top end of the swivel bolt penetrates through the open groove and extends into the swivel body, the swivel bolt is movably connected into the open groove in a clamped mode, a nut is arranged outside the top end of the swivel bolt in a sleeved mode, and the nut is connected with the swivel bolt in a sleeved mode. The top end of the ring bolt is movably clamped in the nut and makes contact with the inner top wall of the nut. According to the rotating ring, the oil inlet hole, the oil storage groove and the fixing block are arranged, and lubricating oil can be added into the oil storage groove through the oil inlet hole, so that the oil storage groove in the rotating ring can store the lubricating oil, and the lubricating oil in the oil storage groove can slowly flow into the nut from a gap between the fixing block and the inner wall of the oil storage groove; and theref