A device for raising the navigation height of a ship lock in a water conservancy project

By using a laser rangefinder and a roller-type linear velocity meter to monitor the gate lifting status during the lock lifting process, and dynamically adjusting the lifting height and speed, the control problem caused by water flow impact during the gate lifting process was solved, achieving a safe and rapid lifting effect.

CN121719196BActive Publication Date: 2026-05-26ANHUI SHUIAN CONSTR GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI SHUIAN CONSTR GRP CO LTD
Filing Date
2026-02-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the lifting process of a lock, the gate is easily subjected to lateral loads due to the impact of water flow, making the lifting process difficult to control. A common method to compensate for this is to reduce the lifting speed, resulting in a slower lifting speed.

Method used

A laser rangefinder and a roller-type linear velocity meter are used to monitor the coaxiality deviation between the wire rope and the guide hole and the relative displacement between the wire rope and the pulley during the gate lifting process. The lifting height and speed are dynamically adjusted by the control module to ensure the safety and speed of the gate lifting.

Benefits of technology

This approach achieves faster gate lifting speed, reduces total lifting time, improves economic efficiency, and avoids safety hazards caused by excessively fast lifting speed, all while ensuring safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121719196B_ABST
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Abstract

This invention discloses a device for raising the navigation height of a ship lock in a hydraulic engineering project, specifically relating to the field of ship lock raising technology. The device includes a support pier, a base plate mounted on the support pier, a steel structure, a limiting steel plate, a hydraulic jack, pulleys, a wire rope, a guide pulley, a bracket, a laser rangefinder for measuring the coaxiality deviation between the wire rope and the guide hole during the gate raising process, and a roller-type linear velocity measuring instrument for measuring the relative displacement of the pulleys relative to the wire rope during the gate raising process. The laser rangefinder and the roller-type linear velocity measuring instrument are connected to a control module via signals. The control module comprehensively judges the state of the gate raising process based on the coaxiality deviation between the wire rope and the guide hole and the relative displacement of the pulleys relative to the wire rope, achieving accurate judgment of the gate state during the gate raising process, thereby ensuring safety during the gate raising process and safely raising the gate to a predetermined height.
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