一种新型新旧建筑混凝土底板衔接处的防水结构

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By designing and installing grooves, positioning blocks, waterstops, and locking units at the junction of the old and new concrete slabs, the problem of poor waterproofing at the junction of the old and new concrete slabs was solved, achieving convenient installation and efficient waterproofing.

CN224514443UActive Publication Date: 2026-07-17GUANGZHOU DESIGN INST

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: GUANGZHOU DESIGN INST
Filing Date: 2025-07-23
Publication Date: 2026-07-17

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Abstract

本实用新型公开一种新型新旧建筑混凝土底板衔接处的防水结构，涉及防水结构领域。包括开设在建筑本体位置的安装槽，安装槽的内部固定连接有定位块；安装槽的内部活动卡接有止水带，止水带上固定连接有套座，套座与定位块卡接；套座上设有锁紧单元。该新型新旧建筑混凝土底板衔接处的防水结构通过安装槽、定位块、止水带、套座和锁紧单元的设计，使得止水带的安装方便，施工操作方便，后续止水带的拆解维护更换方便，止水带卡接在新旧建筑混凝土底板衔接处，与安装槽连接紧密，防水效果好，不易老化开裂，维护频次低，后续使用过程中，也不易松动或脱落，满足使用需求。

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Claims

1. A novel waterproof structure for the joint between new and old building concrete floors, comprising a mounting groove (1) formed in the position of the building body (6), characterized in that: The mounting slot (1) is fixedly connected to a positioning block (2); The mounting groove (1) is internally fitted with a waterstop (3), and a sleeve (4) is fixedly connected to the waterstop (3). The sleeve (4) is engaged with the positioning block (2). The sleeve (4) is provided with a locking unit (5) for limiting the positioning block (2), the locking unit (5) including: The guide rail bracket (51) is fixedly connected to the sleeve (4); The slider (52) is movable and snapped onto the guide rail frame (51); Several sets of locking rods (53) are fixedly connected to the slider (52) and inserted into the positioning block (2).

2. The waterproof structure of the interface between new and old concrete bottom plates according to claim 1, characterized in that, The guide rail frame (51) is threaded with a lead screw (54), which is rotatably connected to the slider (52).

3. The waterproof structure of the interface between new and old concrete bottom plates according to claim 2, characterized in that, A rotating handle (541) is fixedly connected to the lead screw (54).

4. The waterproof structure of the interface between new and old concrete slabs according to claim 1, characterized in that, The positioning block (2) has several sets of lock holes (21) corresponding to the position of the locking rod (53).

5. The waterproof structure of the interface between new and old concrete slabs according to claim 1, characterized in that, A water channel (31) is provided on the waterstop (3).

6. The waterproof structure of the interface between new and old concrete slabs according to claim 5, characterized in that, The waterstop (3) is provided with anti-slip grooves (32).

7. The waterproof structure of the interface between new and old concrete slabs according to claim 1, characterized in that, The waterstop (3) has several sets of reinforcing holes (33).