Advanced water-stopping structure for post-cast strips in exterior walls
By using connectors to clamp and fix the water-stop steel plate, the problems of reduced steel plate strength and gaps caused by welding are solved, achieving a stable water-stopping effect and avoiding welding damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-07
AI Technical Summary
In existing building construction, the high temperature during welding of the water-stop steel plate to the main steel bar causes changes in the metallographic structure, reducing the strength. In addition, poor welding quality can create gaps or holes, affecting the water-stopping effect.
The waterstop steel plate is fixed to the steel frame using connectors. The waterstop steel plate is clamped and fixed by connecting components and limiting components without welding. It includes side plates, first baffle, second baffle, connecting components, moving components and limiting components, and is fixed by threaded telescopic rods and arc blocks.
This avoids welding damage, ensures a stable connection between the waterstop steel plate and the main reinforcing steel, improves the waterstop effect, and prevents leakage.
Smart Images

Figure CN224468591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of advanced water-stopping technology, and more specifically to an advanced water-stopping structure for post-cast strips of exterior walls. Background Technology
[0002] Advanced water-stopping in post-cast strip construction of exterior walls is a waterproofing technique used in the construction of post-cast strips in building exterior walls. Advanced water-stopping involves setting up special water-stopping structures at the post-cast strip location to effectively prevent groundwater from seeping into the interior from the post-cast strip location before concrete is poured, thereby ensuring the waterproof performance of the underground structure. It typically uses materials such as waterstops or waterstop steel plates to form a closed waterproof barrier in the concrete structure.
[0003] In existing building construction, water-stop steel plates are placed inside the reinforced steel frame and welded to the main reinforcing bars in the frame. Afterward, formwork is installed on both sides of the frame for pouring. Once poured, a portion of the water-stop steel plate is exposed. While welding secures the plate to the frame, the high temperatures generated during welding can cause localized overheating of the main reinforcing bars and the water-stop steel plate, altering their microstructure and reducing their strength. Furthermore, poor welding quality, such as incomplete welds, leaks, or slag inclusions, can create gaps or holes at the connection between the water-stop steel plate and the main reinforcing bars. These weak points can become water leakage channels, reducing the water-stopping effect of the steel plate. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an advanced water-stopping structure for the post-cast strip of the exterior wall to solve the problems in the background art.
[0005] This utility model provides the following technical solution: an advanced water-stop structure for the post-cast strip of the exterior wall, including a steel frame and two water-stop steel plates, and also includes connectors. The two water-stop steel plates are horizontally arranged in the middle of the steel frame and are symmetrically arranged. The two water-stop steel plates are fixed to the steel frame by multiple sets of connectors.
[0006] The connector includes a side plate, a first baffle, a second baffle, four sets of connecting components, a moving component, and a limiting component. The four sets of connecting components are divided into two groups of two. The two sets of connecting components are symmetrically arranged at the bottom and top of the side plate, respectively. The two connecting components in each group are symmetrically arranged. The first baffle is fixedly installed on the side of the side plate. The limiting component and the moving component are located on the side of the side plate. The second baffle is connected to the moving component and the limiting component. When the moving component rotates, it is limited by the limiting component, causing the moving component to drive the second baffle and the limiting component to move towards the first baffle.
[0007] Furthermore, the connecting assembly includes a threaded telescopic rod, a first arc-shaped block, and a second arc-shaped block. One end of the threaded telescopic rod is fixedly connected to the side plate, and the other end of the threaded telescopic rod is rotatably connected to the first arc-shaped block. One end of the first arc-shaped block is rotatably connected to one end of the second arc-shaped block, and the other ends of the first and second arc-shaped blocks are connected by bolts.
[0008] Furthermore, the moving component includes a fixed plate and a lead screw. The fixed plate is fixedly installed on the side of the side plate, one end of the lead screw passes through the fixed plate and is threadedly connected to the fixed plate, and the second baffle is rotatably connected to the end of the lead screw that passes through the fixed plate.
[0009] Furthermore, the limiting component includes a first connecting plate and a second connecting plate. The first connecting plate is fixedly connected to one side of the second baffle, and the second connecting plate is fixedly connected to the first connecting plate. The second connecting plate abuts against the side of the side plate.
[0010] Furthermore, a turntable is fixedly installed at the other end of the lead screw.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] This utility model uses four sets of connecting components to fix the main horizontal reinforcing bars of the steel frame, and places two water-stop steel plates vertically in the middle of the steel frame. The bottom of the water-stop steel plates abuts against the pouring platform. The two water-stop steel plates are symmetrical and have a certain distance between them. The two water-stop steel plates are respectively located between the corresponding first baffle and second baffle. The inclined side of the water-stop steel plate abuts against the side plate, and the vertical surface of the water-stop steel plate abuts against the first baffle. The worker rotates the moving component and, limited by the limiting component, moves the second baffle to the second baffle, so that the second baffle contacts the vertical surface of the other side of the water-stop steel plate. The water-stop steel plate is clamped and fixed by the first baffle and the second baffle, without welding, thus preventing damage to the water-stop steel plate during welding. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure for fixing the water-stop steel plate to the connector of this utility model;
[0015] Figure 3 This is a schematic diagram of the connector structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the completed casting structure of this utility model.
[0017] The attached figures are labeled as follows: 1. Reinforcing steel frame; 2. Waterstop steel plate; 3. Connector; 301. Side plate; 302. First baffle; 303. Second baffle; 304. Connecting assembly; 3041. Threaded telescopic rod; 3042. First arc-shaped block; 3043. Second arc-shaped block; 305. Moving assembly; 3051. Fixing plate; 3052. Lead screw; 306. Limiting assembly; 3061. First connecting plate; 3062. Second connecting plate; 4. Turntable. Detailed Implementation
[0018] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.
[0019] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 4 The present invention will be further described below.
[0020] This utility model discloses an advanced water-stopping structure for post-cast strips of exterior walls, including a steel frame 1 and two water-stopping steel plates 2, and also includes connectors 3. The two water-stopping steel plates 2 are horizontally arranged in the middle of the steel frame 1 and are symmetrically arranged. The two water-stopping steel plates 2 are fixed to the steel frame 1 by multiple sets of connectors 3.
[0021] The connector 3 includes a side plate 301, a first baffle 302, a second baffle 303, four sets of connecting components 304, a moving component 305, and a limiting component 306. The four sets of connecting components 304 are divided into two groups of two. The two sets of connecting components 304 are symmetrically arranged at the bottom and top of the side plate 301, respectively. The two connecting components 304 in each group are symmetrically arranged. The first baffle 302 is fixedly installed on the side of the side plate 301. The limiting component 306 and the moving component 305 are arranged on the side of the side plate 301. The second baffle 303 is connected to the moving component 305 and the limiting component 306. When the moving component 305 rotates, it is limited by the limiting component 306, causing the moving component 305 to drive the second baffle 303 and the limiting component 306 to move towards the first baffle 302.
[0022] In this implementation plan, a pouring platform is located below the reinforcing steel frame 1 and is integrated with the reinforcing steel frame 1. Workers place multiple sets of connectors 3 vertically in a row at equal intervals in the middle of the reinforcing steel frame 1, and symmetrically place two rows of connectors 3, so that the four sets of connecting components 304 of the connectors 3 are fixedly connected to the transverse main reinforcing bars of the reinforcing steel frame 1. At this time, the side plate 301 is in a horizontal state, and two waterstop steel plates 2 are placed vertically in the middle of the reinforcing steel frame 1, with the bottom of the waterstop steel plates 2 abutting against the pouring platform. The two waterstop steel plates 2 are symmetrical, with a certain distance between them. The two waterstop steel plates 2 are located between the corresponding first baffle 302 and second baffle 303, respectively. The inclined side of the waterstop steel plate 2 abuts against the side plate 301, and the vertical... The first baffle 302 is directly against the first baffle 302. At this time, the worker rotates the moving component 305 and limits it with the limiting component 306, so that the second baffle 303 moves to the second baffle 303 and contacts the vertical surface of the other side of the waterstop steel plate 2. The waterstop steel plate 2 is clamped and fixed by the first baffle 302 and the second baffle 303 without welding. The waterstop steel plate 2 is fixed. The template is installed on the steel frame 1 and the pouring is carried out. After the pouring is completed, part of the two waterstop steel plates 2 is exposed to the outside. During the pouring, the first baffle 302 and the second baffle 303 are covered. At this time, the waterstop of the external wall is poured in advance and formed. When it is completed, the unpoured area between the two waterstop steel plates 2 of the external wall is blocked by the template.
[0023] Specifically, the connecting assembly 304 includes a threaded telescopic rod 3041, a first arc-shaped block 3042, and a second arc-shaped block 3043. One end of the threaded telescopic rod 3041 is fixedly connected to the side plate 301, and the other end of the threaded telescopic rod 3041 is rotatably connected to the first arc-shaped block 3042. One end of the first arc-shaped block 3042 is rotatably connected to one end of the second arc-shaped block 3043, and the other ends of the first arc-shaped block 3042 and the second arc-shaped block 3043 are connected by bolts.
[0024] In this embodiment, when it is necessary to fix the main reinforcing bar in the transverse direction, the threaded telescopic rod 3041 is rotated, which drives the first arc-shaped block 3042 and the second arc-shaped block 3043 to move, so that the inner side of the first arc-shaped surface contacts the surface of the main reinforcing bar. The second arc-shaped block 3043 is rotated, so that the second arc-shaped block 3043 contacts the first arc-shaped block 3042. The first arc-shaped block 3042 and the second arc-shaped block 3043 are fixed with bolts. At this time, the first arc-shaped block 3042 and the second arc-shaped block 3043 clamp the main reinforcing bar. When all four sets of connecting components 304 are fixed with the main reinforcing bar, the side plate 301 is in a horizontal state.
[0025] Specifically, the moving component 305 includes a fixed plate 3051 and a lead screw 3052. The fixed plate 3051 is fixedly installed on the side of the side plate 301. One end of the lead screw 3052 passes through the fixed plate 3051 and is threadedly connected to the fixed plate 3051. The second baffle 303 is rotatably connected to the end of the lead screw 3052 that passes through the fixed plate 3051. The limiting component 306 includes a first connecting plate 3061 and a second connecting plate 3062. The first connecting plate 3061 is fixedly connected to one side of the second baffle 303. The second connecting plate 3062 is fixedly connected to the first connecting plate 3061. The second connecting plate 3062 abuts against the side of the side plate 301. The other end of the lead screw 3052 is fixedly installed with a turntable 4.
[0026] In this implementation scheme, after the side plate 301 is horizontally fixed, two waterstop steel plates 2 are vertically placed in the middle of the reinforcing steel frame 1. The bottom of the waterstop steel plate 2 abuts against the pouring platform, and the waterstop steel plate 2 is located between the first baffle 302 and the second baffle 303. The vertical surface of the waterstop steel plate 2 abuts against the first baffle 302. At this time, the worker rotates the turntable 4. Because the second connecting plate 3062 abuts against the top, the turntable 4 drives the screw rod 3052 to rotate, causing the screw rod 3052 to move towards the first baffle 302, and driving the second baffle 303 to move towards the first baffle 302, so that the first baffle 302 moves and contacts the vertical surface of the other side of the waterstop steel plate 2. The waterstop steel plate 2 is clamped and fixed by the first baffle 302 and the second baffle 303 without welding.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. An advanced water-stop structure for post-cast strips in exterior walls, comprising a reinforced steel frame (1) and two water-stop steel plates (2), characterized in that: It also includes connectors (3), two water-stop steel plates (2) are horizontally set in the middle of the steel frame (1) and are set symmetrically, and the two water-stop steel plates (2) are fixed to the steel frame (1) by multiple sets of connectors (3); The connector (3) includes a side plate (301), a first baffle (302), a second baffle (303), four sets of connecting components (304), a moving component (305), and a limiting component (306). The four sets of connecting components (304) are divided into two groups of two. The two sets of connecting components (304) are symmetrically arranged at the bottom and top of the side plate (301). The two connecting components (304) in one group are symmetrically arranged. The first baffle (302) is fixedly installed on the side of the side plate (301). The limiting component (306) and the moving component (305) are arranged on the side of the side plate (301). The second baffle (303) is connected to the moving component (305) and the limiting component (306). When the moving component (305) rotates and is limited by the limiting component (306), the moving component (305) drives the second baffle (303) and the limiting component (306) to move toward the first baffle (302).
2. The advanced water-stopping structure for post-cast strips in exterior walls according to claim 1, characterized in that: The connecting assembly (304) includes a threaded telescopic rod (3041), a first arc-shaped block (3042), and a second arc-shaped block (3043). One end of the threaded telescopic rod (3041) is fixedly connected to the side plate (301), and the other end of the threaded telescopic rod (3041) is rotatably connected to the first arc-shaped block (3042). One end of the first arc-shaped block (3042) is rotatably connected to one end of the second arc-shaped block (3043), and the other ends of the first arc-shaped block (3042) and the second arc-shaped block (3043) are connected by bolts.
3. The advanced water-stopping structure for post-cast strips in exterior walls according to claim 1, characterized in that: The movable component (305) includes a fixed plate (3051) and a lead screw (3052). The fixed plate (3051) is fixedly installed on the side of the side plate (301). One end of the lead screw (3052) passes through the fixed plate (3051) and is threadedly connected to the fixed plate (3051). The second baffle (303) is rotatably connected to the end of the lead screw (3052) that passes through the fixed plate (3051).
4. The advanced water-stopping structure for post-cast strips in exterior walls according to claim 1, characterized in that: The limiting component (306) includes a first connecting plate (3061) and a second connecting plate (3062). The first connecting plate (3061) is fixedly connected to one side of the second baffle (303), and the second connecting plate (3062) is fixedly connected to the first connecting plate (3061). The second connecting plate (3062) abuts against the side of the side plate (301).
5. The advanced water-stopping structure for post-cast strips in exterior walls according to claim 3, characterized in that: A turntable (4) is fixedly installed at the other end of the lead screw (3052).