Underground water stop steel plate
By setting a sealing plate and bevel welding on the waterstop steel plate, the problems of difficult installation and easy water seepage of the waterstop steel plate are solved, achieving a water-stopping effect with high sealing performance and strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 3 GRP CO LTD
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-28
AI Technical Summary
Existing water-stop steel plates are difficult to install and are prone to cracking or water seepage.
By designing a first water-stop steel plate and a second water-stop steel plate, connecting the first sealing plate and the second sealing plate to their outer surface and bottom respectively, and setting the second sealing plate and the third sealing plate at the corner position, the production is carried out by beveling and welding to ensure that the overlap length reaches more than 50mm, thereby enhancing the sealing performance and strength.
It enhances the sealing and strength of the waterstop steel plate during installation, reduces cracking and water seepage, and is suitable for water-stopping needs in underground buildings.
Smart Images

Figure CN224173533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically to a water-stopping steel plate for underground applications. Background Technology
[0002] Water-stop steel plates, also known as steel plate waterstops, are metallic materials used in construction engineering to prevent water seepage. They achieve water stoppage primarily through their own metallic density and tight bonding with concrete. During concrete pouring, the water-stop steel plate interlocks with the concrete, forming a barrier that prevents water penetration. This effectively blocks groundwater or other water sources from seeping through construction joints, expansion joints, and other gaps. It features reliable waterproofing performance, strong adaptability to deformation, and convenient construction, and is widely used in basement engineering, tunnel engineering, and water conservancy and hydropower engineering.
[0003] A bidirectional water-stop steel plate with application number 202420176856.3 includes a water-blocking plate, a first water-stopping component, and a second water-stopping component. Both the first and second water-stopping components are located at the ends of the water-blocking plate, and the length directions of both components are the same as the length direction of the water-blocking plate. The width direction of the first water-stopping component faces the first side of the water-blocking plate, and the width direction of the second water-stopping component faces the second side, with the first and second sides having opposite directions. The first water-stopping component and the water-blocking plate enclose a first water-blocking area located on the first side, and the second water-stopping component and the water-blocking plate enclose a second water-blocking area located on the second side, thereby preventing liquids (e.g., water) in the building from flowing from the first side to the second side or from the second side to the first side.
[0004] This technical solution achieves a two-way water-stopping effect by changing the shape of the existing water-stopping steel plate. However, due to the change in shape, it is very difficult to install. It can only be installed by butt joint, and the water-stopping effect is poor. Traditional water-stopping steel plates require multiple plates to be overlapped during installation. The overlap length must be more than 50mm to meet the standard and achieve a good water-stopping effect. However, the shape of this technical solution is not conducive to the overlapping method of installation. The butt joint method of installation will result in weak connection points, which are prone to cracking or water leakage. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a water-stopping steel plate for underground use, so as to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a water-stop steel plate for underground use, comprising a first water-stop steel plate and a second water-stop steel plate, characterized in that: a first sealing plate is connected to the lower outer surface of both the first water-stop steel plate and the second water-stop steel plate, a second sealing plate is connected to the top of the second water-stop steel plate, and a third sealing plate is connected to the bottom of the second water-stop steel plate.
[0007] By adopting the above technical solution, in the production of the first waterstop steel plate, workers weld the first sealing plate and the grid plate onto the rough waterstop steel plate blank having the first and second side plates, thus completing the production of the first waterstop steel plate; in the production of the second waterstop steel plate, workers bevel two rough waterstop steel plate blanks having the first and second side plates, butt them together, and then weld them together to complete the rough blank of the second waterstop steel plate. Subsequently, workers weld the second and third sealing plates at the joint, and then weld the first sealing plate and the grid plate onto the second waterstop steel plate, thus completing the production of the second waterstop steel plate. The production of the second water-stop steel plate is carried out. During assembly, the workers first set up the standard line and welded short steel bars to the building steel bars. Then, the first or second water-stop steel plate is welded to the short steel bars to complete the installation. During the process of overlapping the first or second water-stop steel plate, both water-stop steel plates can be divided into a 50 mm long first sealing plate, so as to ensure sufficient strength and sealing after welding and reduce cracking and water seepage. The presence of the second water-stop steel plate facilitates water-stopping at corner positions.
[0008] Furthermore, the first water-stop steel plate and the first sealing plate both have an "I" shaped cross section, and the second water-stop steel plate, the second sealing plate and the third sealing plate all have an "L" shaped cross section.
[0009] By adopting the above technical solution, when producing the first waterstop steel plate, workers weld the first sealing plate and the grid plate onto the rough waterstop steel plate blank with the first side plate and the second side plate, thereby completing the production of the first waterstop steel plate; when producing the second waterstop steel plate, workers bevel two rough waterstop steel plate blanks with the first side plate and the second side plate, then butt them together and weld them to fix them, thus completing the rough blank of the second waterstop steel plate. Subsequently, workers weld the second sealing plate and the third sealing plate at the joint, and weld the first sealing plate and the grid plate onto the second waterstop steel plate, thereby completing the production of the second waterstop steel plate.
[0010] Furthermore, the first sealing plate is provided in two sets, and one set of the first sealing plate is fixedly connected to the first water-stop steel plate, while the other set of the first sealing plate is fixedly connected to the second water-stop steel plate.
[0011] By adopting the above technical solution, during assembly, the workers first set up the standard line and welded short steel bars to the building steel bars. Then, they welded the first or second water-stop steel plate to the short steel bars to complete the installation. During the process of overlapping the first or second water-stop steel plate, both water-stop steel plates can be divided into a 50 mm long first sealing plate, which ensures sufficient strength and sealing after welding and reduces cracking and water seepage. The presence of the second water-stop steel plate facilitates water stopping at corner positions.
[0012] Furthermore, both the second and third sealing plates are fixedly connected to the second water-stop steel plate.
[0013] By adopting the above technical solution, two rough blanks of waterstop steel plates with first and second side plates are obliquely cut, butted together, and then welded and fixed. Subsequently, the second sealing plate and the third sealing plate are fully welded at the joint, thereby completing the production of the second waterstop steel plate, which facilitates the subsequent installation at the corner position and ensures the strength and sealing of the corner position.
[0014] Furthermore, the first water-stop steel plate comes into contact with the second water-stop steel plate.
[0015] By adopting the above technical solution, the presence of the second water-stop steel plate facilitates water-stopping at corner positions, and the first water-stop steel plate and the second water-stop steel plate can be overlapped by the first sealing plate.
[0016] Furthermore, the length of the first sealing plate is 100mm to 200mm.
[0017] By adopting the above technical solution, the length of the first sealing plate is 100 mm. When the first water-stop steel plate overlaps with the first water-stop steel plate or the first water-stop steel plate overlaps with the second water-stop steel plate, both water-stop steel plates can be divided into a first sealing plate of 50 mm in length, thereby ensuring sufficient strength and sealing after welding and reducing the occurrence of cracking and water seepage.
[0018] Furthermore, a first side plate and a second side plate are fixed to both sides of the first water-stop steel plate and both sides of the second water-stop steel plate.
[0019] By adopting the above technical solution, the setting of the first side plate and the second side plate allows both sides of the water-stop steel plate to be water-facing surfaces, achieving a double-sided water-stopping effect and effectively preventing water seepage from the outside of the building to the inside and from the inside of the building to the outside.
[0020] Furthermore, the first water-stop steel plate, the second water-stop steel plate, the first side plate, the second side plate, the first sealing plate, the second sealing plate, and the third sealing plate are all made of carbon steel, galvanized steel, or stainless steel.
[0021] By adopting the above technical solutions, carbon steel can meet the requirements in general industrial and civil building projects. It has high strength and is easy to weld. When the requirements for corrosion resistance are high, galvanized steel or stainless steel waterstop plates can be selected, which have good corrosion resistance and effectively reduce the occurrence of rust on the waterstop plates.
[0022] Furthermore, grid plates are connected to the outer surface of the first water-stop steel plate, the back of the first water-stop steel plate, the top two sides of the second water-stop steel plate, the bottom two sides of the second water-stop steel plate, the outer surface of the second water-stop steel plate, and the back of the second water-stop steel plate.
[0023] By adopting the above technical solution, the structural strength of the first and second water-stop steel plates is increased by setting up the grid plates during use, and the connection surface between the first and second water-stop steel plates and the concrete is increased, making the connection between the first and second water-stop steel plates and the concrete more stable.
[0024] In summary, the present invention has the following main advantages:
[0025] 1. This utility model, through the setting of the first sealing plate, facilitates the overlapping of the first and second water-stop steel plates during installation. The length of the first sealing plate is 100 mm. When the first water-stop steel plates overlap, or when the first water-stop steel plate overlaps with the second water-stop steel plate, each water-stop steel plate can receive a 50 mm length of the first sealing plate. This ensures sufficient strength and sealing after welding, reducing cracking and water seepage; it facilitates overlapping and ensures strength and sealing.
[0026] 2. This utility model, through the setting of the second sealing plate and the third sealing plate, during the production process, two rough blanks of water-stop steel plates with first side plates and second side plates are obliquely cut, butted together, and then welded and fixed. Subsequently, the second sealing plate and the third sealing plate are fully welded at the joint, thereby completing the production of the second water-stop steel plate, which facilitates the subsequent installation at the corner position and ensures the strength and sealing of the corner position; it facilitates the subsequent installation at the corner position and ensures the strength and sealing of the corner position. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this utility model;
[0028] Figure 2 This is a schematic diagram of the first water-stop steel plate structure of this utility model;
[0029] Figure 3 This is a schematic diagram of the explosion structure of the first water-stop steel plate of this utility model;
[0030] Figure 4 This is a schematic diagram of the second water-stop steel plate structure of this utility model;
[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the second water-stop steel plate of this utility model;
[0032] Figure 6 This is a schematic diagram of the exploded structure of the second water-stop steel plate of this utility model.
[0033] In the diagram: 1. First water-stop steel plate; 2. Second water-stop steel plate; 3. First side plate; 4. Second side plate; 5. First sealing plate; 6. Second sealing plate; 7. Third sealing plate; 8. Grid plate. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0035] The embodiments of this utility model will be described below based on its overall structure. Example
[0036] A type of waterproof steel plate used underground, such as Figures 1-6As shown, it includes a first water-stop steel plate 1 and a second water-stop steel plate 2. The first water-stop steel plate 1 and the second water-stop steel plate 2 are in contact. A first sealing plate 5 is connected to the lower outer surface of both the first water-stop steel plate 1 and the second water-stop steel plate 2. The length of the first sealing plate 5 is 100mm to 200mm. Two sets of first sealing plates 5 are provided; one set is fixedly connected to the first water-stop steel plate 1, and the other set is fixedly connected to the second water-stop steel plate 2. The first water-stop steel plate 1 and the first... The cross-section of sealing plate 5 is "I" shaped. The top of the second water-stop steel plate 2 is connected to the second sealing plate 6, and the bottom of the second water-stop steel plate 2 is connected to the third sealing plate 7. The cross-sections of the second water-stop steel plate 2, second sealing plate 6, and third sealing plate 7 are all "L" shaped. The second sealing plate 6 and third sealing plate 7 are fixedly connected to the second water-stop steel plate 2. During the production of the first water-stop steel plate 1, workers weld the first sealing plate 5 and the grid plate 8 onto the rough water-stop steel plate blank, which has the first side plate 3 and the second side plate 4, thus completing the process. The production of the first water-stop steel plate 1 is as follows: When producing the second water-stop steel plate 2, the workers obliquely cut two rough blanks of water-stop steel plates with first side plates 3 and second side plates 4, then butt them together and weld them to fix them, thus completing the rough blank of the second water-stop steel plate 2. Subsequently, the workers weld the second sealing plate 6 and the third sealing plate 7 at the joint position, and weld the first sealing plate 5 and the grid plate 8 onto the second water-stop steel plate 2, thereby completing the production of the second water-stop steel plate 2. During assembly, the workers first draw a standard line and weld short steel bars to the building steel bars. Then, they weld the first water-stop steel plate 1 or the second water-stop steel plate 2 to the short steel bars to complete the installation. During this process, when the first water-stop steel plate 1 is overlapped with the first water-stop steel plate 1 or the second water-stop steel plate 2, both water-stop steel plates can be divided into 50 mm lengths of the first sealing plate 5, thus ensuring sufficient strength and sealing after welding, reducing cracking and water seepage. The presence of the second water-stop steel plate 2 facilitates water-stopping at corner positions.
[0037] See Figures 1-6 In the above embodiments, first side plates 3 and second side plates 4 are fixed on both sides of the first water-stop steel plate 1 and both sides of the second water-stop steel plate 2. By setting the first side plates 3 and second side plates 4, both sides of the water-stop steel plate can be water-facing surfaces, achieving a double-sided water-stopping effect, effectively preventing water seepage from the outside of the building to the inside and from the inside of the building to the outside. The first water-stop steel plate 1, the second water-stop steel plate 2, the first side plates 3 and 4, the first sealing plate 5, the second sealing plate 6 and the third sealing plate 7 are all made of carbon steel, galvanized steel or stainless steel. In general industrial and civil building projects, carbon steel can meet the requirements, with high strength and easy welding. When the requirements for corrosion resistance are high, galvanized steel or stainless steel water-stop steel plates can be selected, which have good corrosion resistance and effectively reduce the occurrence of rust on the water-stop steel plates. Example
[0038] Based on the above embodiment one, in order to increase the structural strength and the connection strength between the waterstop steel plate and the concrete, the following settings are now adopted.
[0039] See Figures 1-6 In the above embodiment, grid plates 8 are connected to the outer surface of the first waterstop steel plate 1, the back of the first waterstop steel plate 1, the top two sides of the second waterstop steel plate 2, the bottom two sides of the second waterstop steel plate 2, the outer surface of the second waterstop steel plate 2, and the back of the second waterstop steel plate 2. When in use, the grid plates 8 increase the structural strength of the first waterstop steel plate 1 and the second waterstop steel plate 2, and increase the connection surface between the first waterstop steel plate 1 and the second waterstop steel plate 2 and the concrete, making the connection between the first waterstop steel plate 1 and the second waterstop steel plate 2 and the concrete more stable.
[0040] The implementation principle of this utility model is as follows: First, when producing the first water-stop steel plate 1, the workers weld the first sealing plate 5 and the grid plate 8 onto the rough blank of the water-stop steel plate having the first side plate 3 and the second side plate 4, thereby completing the production of the first water-stop steel plate 1; when producing the second water-stop steel plate 2, the workers obliquely cut the two rough blanks of the water-stop steel plate having the first side plate 3 and the second side plate 4, then butt them together and weld them to fix them, thereby completing the rough blank of the second water-stop steel plate 2; then the workers weld the second sealing plate 6 and the third sealing plate 7 at the joint position, and weld the first sealing plate 5 and the grid plate 8 onto the second water-stop steel plate 2, thereby completing the production of the second water-stop steel plate 2;
[0041] During assembly, the workers first set up the standard line and welded short steel bars to the building steel bars. Then, they welded the first water-stop steel plate 1 or the second water-stop steel plate 2 to the short steel bars to complete the installation. During the process of overlapping the first water-stop steel plate 1 with the first water-stop steel plate 1 or the second water-stop steel plate 2, both water-stop steel plates can be divided into a first sealing plate 5 with a length of 50 mm. This ensures sufficient strength and sealing after welding and reduces cracking and water seepage. The presence of the second water-stop steel plate 2 facilitates water-stopping at corner positions.
[0042] When in use, the installation of the grid plate 8 increases the structural strength of the first water-stop steel plate 1 and the second water-stop steel plate 2, and increases the connection surface between the first water-stop steel plate 1 and the second water-stop steel plate 2 and the concrete, making the connection between the first water-stop steel plate 1 and the second water-stop steel plate 2 and the concrete more stable.
[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A water-stop steel plate for underground use, comprising a first water-stop steel plate (1) and a second water-stop steel plate (2), characterized in that: The first water-stop steel plate (1) and the second water-stop steel plate (2) are both connected to a first sealing plate (5) below their outer surfaces, the second water-stop steel plate (2) is connected to a second sealing plate (6) at its top, and the second water-stop steel plate (2) is connected to a third sealing plate (7) at its bottom.
2. The underground water-stopping steel plate according to claim 1, characterized in that: The first water-stop steel plate (1) and the first sealing plate (5) are both in the shape of an "I" and the second water-stop steel plate (2), the second sealing plate (6) and the third sealing plate (7) are both in the shape of an "L".
3. The underground water-stopping steel plate according to claim 2, characterized in that: The first sealing plate (5) is provided in two sets, and one set of the first sealing plate (5) is fixedly connected to the first water-stop steel plate (1), and the other set of the first sealing plate (5) is fixedly connected to the second water-stop steel plate (2).
4. The underground water-stopping steel plate according to claim 3, characterized in that: The second sealing plate (6) and the third sealing plate (7) are both fixedly connected to the second water-stop steel plate (2).
5. The underground water-stopping steel plate according to claim 3, characterized in that: The first water-stop steel plate (1) is in contact with the second water-stop steel plate (2).
6. The underground water-stopping steel plate according to claim 3, characterized in that: The length of the first sealing plate (5) is 100mm to 200mm.
7. The underground water-stopping steel plate according to claim 1, characterized in that: Both sides of the first water-stop steel plate (1) and both sides of the second water-stop steel plate (2) are fixed with a first side plate (3) and a second side plate (4).
8. The underground water-stopping steel plate according to claim 7, characterized in that: The first water-stop steel plate (1), the second water-stop steel plate (2), the first side plate (3), the second side plate (4), the first sealing plate (5), the second sealing plate (6), and the third sealing plate (7) are all made of carbon steel, galvanized steel, or stainless steel.
9. The underground water-stopping steel plate according to claim 1, characterized in that: A grid plate (8) is connected to the outer surface of the first water-stop steel plate (1), the back of the first water-stop steel plate (1), the top two sides of the second water-stop steel plate (2), the bottom two sides of the second water-stop steel plate (2), the outer surface of the second water-stop steel plate (2), and the back of the second water-stop steel plate (2).
Citation Information
Patent Citations
Bidirectional water stop steel plate
CN222044519U