Waterproof steel plate for hydraulic engineering
By designing multi-layered water-facing extension plates and bolted water-stop steel plates, the problems of low construction efficiency and easy cracking of connections were solved, achieving rapid installation and improved durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZAOZHUANG CHANGDA CONSTR ENG CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
Smart Images

Figure CN224495036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering, and in particular to a water-stopping steel plate for water conservancy engineering. Background Technology
[0002] In hydraulic engineering foundations, the concrete for the base slab, exterior wall panels, and roof slab is poured separately. When the wall panel concrete is poured next, a construction cold joint is created. If this joint is below the water level of the hydraulic structure, water seepage is likely to occur. Therefore, technical treatment of this joint is necessary, with the most common method being the installation of water-stop steel plates. However, existing water-stop steel plates often only have bent water-blocking plates at the top and bottom of the water-facing side, and the connection between adjacent water-stop steel plates requires welding. This results in slow construction efficiency, high technical requirements, and the lack of expansion joints between long water-stop steel plates, making the welded joints prone to cracking under temperature changes. Utility Model Content
[0003] The purpose of this utility model is to provide a water-stopping steel plate for water conservancy projects to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A water-stop steel plate for hydraulic engineering includes a water-stop steel plate body, rubber gaskets, a water-facing extension plate, a recessed connecting piece, a pre-drilled screw hole A, an extension side connecting piece, a pre-drilled screw hole B, and a fixing stud. Rubber gaskets are bonded to the rear end and both sides of the water-stop steel plate body. Several layers of water-facing extension plates are welded at equal intervals to the front end of the water-stop steel plate body. A recessed connecting piece is welded to the left side of each water-facing extension plate, and a pre-drilled screw hole A is provided on each of the recessed connecting pieces. An extension plate is integrally formed on the right side of each water-facing extension plate. The side connecting pieces, and the extended side connecting pieces are all provided with reserved screw holes B. The main bodies of the waterstop steel plate are connected to each other through the extended side connecting pieces and the corresponding recessed connecting pieces on the left side of the other waterstop steel plate main body, so that the reserved screw holes B and reserved screw holes A overlap in the vertical direction. The fixing studs are connected to each other through reserved screw holes A and reserved screw holes B. The connected waterstop steel plate main bodies are tightly connected by rubber gaskets on the same side, so as to achieve water stop sealing and expansion joint function of the waterstop steel plate main body.
[0006] Preferably, the water-stop steel plate for water conservancy projects also includes a reinforcing connecting plate, and the reinforcing connecting plate is welded to the center of the outer extension plate on the water-facing side.
[0007] Preferably, the main body of the water-stop steel plate, the water-facing extension plate, the recessed connecting piece, the extension side connecting piece, the fixing stud, and the reinforcing connecting plate are all galvanized.
[0008] The beneficial effects of this utility model are: the utility model is reasonably designed, the front end of the water-stop steel plate is provided with multiple layers of water-facing extension plates, the water-blocking effect is better, and the connection between adjacent water-stop steel plates can be made by bolts, the installation speed is fast, and it has its own expansion joint effect, which can withstand greater temperature changes. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of the water-stopping steel plate for water conservancy projects according to this utility model.
[0010] In the diagram: 1. Water-stop steel plate body, 2. Rubber gasket, 3. Water-facing extension plate, 4. Recessed connecting piece, 5. Reserved screw hole A, 6. Extension side connecting piece, 7. Reserved screw hole B, 8. Fixing stud, 9. Reinforcing connecting plate. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0012] like Figure 1 As shown, a water-stop steel plate for hydraulic engineering includes a water-stop steel plate body 1, rubber gaskets 2, water-facing extension plates 3, recessed connecting pieces 4, reserved screw holes A5, extension side connecting pieces 6, reserved screw holes B7, and fixing studs 8. Rubber gaskets 2 are bonded to the rear end and both sides of the water-stop steel plate body 1. Several layers of water-facing extension plates 3 are welded at equal intervals to the front end of the water-stop steel plate body 1. Recessed connecting pieces 4 are welded to the left side of each water-facing extension plate 3, and each recessed connecting piece 4 has a reserved screw hole A5. The right side of each water-facing extension plate 3 is integrally formed with… The extension side connecting piece 6 has a reserved screw hole B7 on it. The main body 1 of the waterstop steel plate is connected to the corresponding recessed connecting piece 4 on the left side of the adjacent main body 1 of the waterstop steel plate through the extension side connecting piece 6, so that the reserved screw hole B7 and the reserved screw hole A5 overlap in the vertical direction. The fixing stud 8 is connected to each other through the reserved screw hole A5 and the reserved screw hole B7. The connected main bodies of the waterstop steel plate are tightly connected by the rubber gasket 2 on the same side, which realizes the function of waterstop sealing and expansion joint of the main body of the waterstop steel plate 1. The waterstop steel plate of the water conservancy project also includes a reinforcing connecting plate 9. The reinforcing connecting plate 9 is welded to the center of the water-facing outer extension plate 3. The main body 1 of the waterstop steel plate, the water-facing outer extension plate 3, the recessed connecting piece 4, the extension side connecting piece 6, the fixing stud 8 and the reinforcing connecting plate 9 are all galvanized.
[0013] The working principle of this utility model is as follows: The main body 1 of the water-stop steel plate is installed at the cold joint position as needed. The main bodies 1 of the water-stop steel plate are connected to each other by the extended side connecting piece 6 and the corresponding recessed connecting piece 4 on the left side of the adjacent water-stop steel plate main body 1, so that the reserved screw hole B7 and the reserved screw hole A5 overlap in the vertical direction. The fixing stud 8 is connected to each other through the reserved screw hole A5 and the reserved screw hole B7. The connected water-stop steel plate main bodies 1 are tightly connected by the rubber gasket 2 on the same side. While realizing water-stop sealing, it also realizes the expansion joint function of the water-stop steel plate main body 1. The center of the water-facing outer extension plate 3 is connected by the reinforcing connecting plate 9, which adds a certain support to the water-facing outer extension plate 3. The surface galvanization increases the durability and corrosion resistance of the steel plate 1.
[0014] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary in all respects, and thus equivalent variations within the scope of this invention are included within its scope.
Claims
1. A water-stop steel plate for hydraulic engineering, comprising a water-stop steel plate body (1), a rubber gasket (2), a water-facing extension plate (3), a recessed connecting piece (4), a reserved screw hole A (5), an extension side connecting piece (6), a reserved screw hole B (7), and a fixing stud (8), characterized in that: Rubber gaskets (2) are bonded to the rear end and both sides of the main body (1) of the waterstop steel plate. Several layers of water-facing extension plates (3) are welded at equal intervals to the front end of the main body (1). A recessed connecting piece (4) is welded to the left side of each water-facing extension plate (3), and a reserved screw hole A (5) is opened on each recessed connecting piece (4). An extension side connecting piece (6) is integrally formed on the right side of each water-facing extension plate (3), and a reserved screw hole B (7) is opened on each extension side connecting piece (6). (1) They are connected to each other by the extended side connecting piece (6) and the corresponding recessed connecting piece (4) on the left side of the adjacent waterstop steel plate body (1), so that the reserved screw hole B (7) and the reserved screw hole A (5) overlap in the vertical direction. The fixed stud (8) will be connected to each other through the reserved screw hole A (5) and the reserved screw hole B (7). The connected waterstop steel plate bodies (1) are tightly connected by the rubber gasket (2) on the same side. While achieving waterstop sealing, the expansion joint function of the waterstop steel plate body (1) is also realized.
2. The water-stopping steel plate for water conservancy projects according to claim 1, characterized in that: The water-stop steel plate of the water conservancy project also includes a reinforcing connecting plate (9), and the reinforcing connecting plate (9) is welded to the center of the water-facing outer extension plate (3).
3. The water-stopping steel plate for water conservancy projects according to claim 1, characterized in that: The main body (1) of the water-stop steel plate, the outer extension plate (3) of the water-facing side, the concave connecting piece (4), the extension side connecting piece (6), the fixing stud (8) and the reinforcing connecting plate (9) are all galvanized.