Dredging excavation immersed tube

• Main Authors: ZENG CHUHUI, CHEN BIZHI, ZENG HUA, ZHANG SIMING, CAI JIBIN
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model belongs to the technical field of underwater immersed tubes, and particularly relates to a dredging excavation immersed tube which comprises an immersed tube body. Through the arrangement of the positioning mechanism, when the immersed tube needs to be spliced, the two immersed tube main bodies are aligned, so that the inserting ring on one immersed tube main body is inserted into the embedding groove of the other immersed tube main body, and in the process, the screw rod gradually enters the threaded hole formed in the sleeve and synchronously rotates along with the screw rod gradually penetrating into the threaded hole and the sleeve; a ratchet wheel is matched with a plurality of arc-shaped blocks, so that the sleeve can rotate only when the lead screw penetrates into the threaded hole, namely, after the inserting ring completely enters the connecting ring, the two sleeve bodies are connected and spliced, and the lead screw and the sleeve cannot rotate reversely, so that the connecting st