A pressing positioning mechanism for a joint waterstop of a foundation pit underground continuous wall

By combining a base, frame, fasteners, top plate, hydraulic cylinder, and pressure claws, the problem of uneven clamping force and low disassembly efficiency of traditional waterstop clamping devices is solved, achieving uniform clamping and rapid disassembly of the waterstop, thus improving construction efficiency.

CN224300042UActive Publication Date: 2026-05-29NINGBO WIDE AREA CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO WIDE AREA CONSTR CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional waterstop clamping devices at the joints of diaphragm walls in foundation pits suffer from uneven clamping force distribution and low disassembly efficiency, resulting in localized inadequate clamping of the waterstop and difficulty in quick removal.

Method used

It adopts a combination structure of base, frame, fastener, top plate, pressure plate, hydraulic cylinder and pressure claw. The pressure plate is driven to press down by the hydraulic cylinder, and the pressure claw in the circumferential array applies force synchronously to achieve uniform pressing of the waterstop around the whole circumference. Quick assembly and disassembly are achieved by plug-in structure and quick locking with hexagonal bolts.

Benefits of technology

It achieves uniform compression of the waterstop throughout its circumference, simplifies the assembly and disassembly process, increases the clamping force and construction efficiency, and enables quick removal of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224300042U_ABST
    Figure CN224300042U_ABST
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Abstract

The utility model provides a kind of foundation pit underground continuous wall joint water stop pressurizing positioning mechanism, including base, frame, fixed part, the edge of base is inserted with frame, the both sides of base are inserted with fixed part, the fixed part is threadedly connected with frame, the top of frame is fixedly connected with top plate, the movable joint of frame is connected with pressing plate, the edge of the bottom surface of pressing plate is fixedly connected with pressing rim, the top surface of pressing plate is fixedly connected with hydraulic cylinder, the end of the output end of hydraulic cylinder is fixedly connected with top plate by flange.The utility model has the advantages of: evenly press tightly: when hydraulic cylinder drives pressing plate to press down, circumferential array's pressing claw forces synchronously, overcome the stress concentration problem of traditional single-point pressure, realize that water stop is evenly pressed tightly all around, quickly disassembles and assembles: frame and base use insertion structure, cooperate both sides with pad hexagon bolt fast locking;After construction is completed, loosen bolt can whole frame be pulled out, without dismantling by component.
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