Segmented water stop screw for concrete walls

By designing a segmented water-stop screw length adjustment mechanism and a waterproofing mechanism, the problem of inflexible matching of water-stop screw length was solved, improving construction efficiency and sealing effect, and reducing material waste and repair work.

CN224478700UActive Publication Date: 2026-07-10GUANGZHOU NO 1 CONSTR ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU NO 1 CONSTR ENG
Filing Date
2025-06-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing water-stop bolts, when meeting the high-precision molding requirements of fair-faced concrete, suffer from problems such as leaving holes or rust after disassembly requiring repair, material waste, and inflexible length adaptation, which affect construction efficiency and cost.

Method used

A segmented water-stop screw was designed, which includes a length adjustment mechanism and a waterproof mechanism. The length of the water-stop screw can be flexibly adjusted by combining a conical sleeve and a locking rod, and the sealing effect can be enhanced by a waterproof plate.

Benefits of technology

It enables flexible adjustment of the length of the water-stop screw, reduces material waste, improves construction efficiency, enhances the sealing effect, and avoids secondary repairs and material waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224478700U_ABST
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Abstract

The utility model relates to a clean water concrete water stop screw technical field, concretely relates to a sectional type water stop screw for concrete wall, including first water stop screw and second water stop screw, sectional type water stop screw still includes a pair of conical sleeve, two conical sleeves can rotate respectively setting in the outside of first water stop screw and second water stop screw, length adjusting mechanism and waterproof mechanism setting in the outside of first water stop screw and second water stop screw, length adjusting mechanism includes butt joint lever, locking groove and locking lever, butt joint lever sets up at the top of second water stop screw, the end face of first water stop screw is set up and is inserted into the insertion slot of butt joint lever, and the insertion slot is cylindrical shape, the top of first water stop screw is set up locking groove, and locking groove is located the top of insertion slot. The technical scheme through length adjusting mechanism has realized the distance adjustment between first water stop screw and second water stop screw, can adapt the use of clean water concrete formwork.
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