Waterstop sealing structure

By introducing components such as sealing gaskets, water-stopping gaskets, and water-absorbing expansion gaskets into the waterstop, and using a combination of multiple fiber layers, the problem of poor water absorption and sealing capacity of the waterstop sealing structure is solved, improving the sealing effect and ease of installation, and enhancing the protective performance.

CN224495220UActive Publication Date: 2026-07-14CCCC THIRD HARBOR ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC THIRD HARBOR ENGINEERING CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing waterstop sealing structure has poor water absorption and sealing capabilities, resulting in unsatisfactory sealing performance.

Method used

By incorporating a combination of components such as sealing gaskets, water-stopping gaskets, water-absorbing expansion gaskets, fixing screw holes, fixing nuts, connecting columns, and connecting bolts into the waterstop, the waterstop's water absorption and expansion capacity and sealing effect are enhanced. Furthermore, the support and protective performance of the sealing structure are improved through the application of multiple fiber layers and waterproof coatings.

Benefits of technology

This technology improves the water absorption and expansion capacity and sealing effect of the waterstop sealing structure during use, enhances the ease of installation and sealing effect of the waterstop, and strengthens its protective performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224495220U_ABST
    Figure CN224495220U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of waterstop and discloses a waterstop sealing structure, which comprises a waterstop, a sealing gasket fixedly arranged at the lower end of the waterstop, a waterstop pad fixedly arranged at the upper end of the waterstop, a water-absorbing and expanding pad fixedly arranged at the lower end of the waterstop pad, a fixed screw hole fixedly arranged at the upper end of the waterstop, a fixed nut fixedly arranged at the upper side of the fixed screw hole, a tightening hole fixedly arranged at the upper end of the fixed nut, and a connecting column fixedly arranged at the lower end of the fixed nut. The waterstop sealing structure is improved, and the water absorption and sealing capacity of the waterstop sealing structure is improved. In actual use, the waterstop sealing structure can be expanded according to needs, the waterstop sealing structure is conveniently sealed and supported, and the sealing effect of the waterstop sealing structure is improved.
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Description

Technical Field

[0001] This utility model relates to the field of waterstop technology, specifically a waterstop sealing structure. Background Technology

[0002] Waterstop is a self-adhesive waterproof material made of high-molecular inorganic water-absorbing and expanding material mixed with rubber. It is mainly used for seepage prevention and leakage prevention in concrete construction joints. It is suitable for underground buildings, water conservancy and hydropower, traffic tunnels and municipal water supply and drainage projects. The product is a gray-black putty-like colloid. It expands when it comes into contact with water to form an impermeable plastic colloid to block the leakage channel. It has the characteristics of slow expansion, corrosion resistance and aging resistance.

[0003] Existing patent document CN221118234U discloses a waterstop sealing structure, including a steel profile and a waterstop body. The steel profile extends along the width of the bridge and has a sealing groove on its side that extends along its length. A first blocking part and a second blocking part are respectively provided on the upper and lower sides of the opening of the sealing groove. The end of the waterstop body has a retaining edge. A pressure strip is also provided in the sealing groove to press against the corresponding end of the waterstop body. When the waterstop body and the steel profile are assembled, the pressure strip and the retaining edge are respectively positioned and abut against the first and second blocking parts, thereby preventing the waterstop body from detaching from the sealing groove of the steel profile. For ease of assembly, preferably, the opening of the sealing groove faces upwards, and the pressure strip is located above the corresponding end of the waterstop body. To ensure a sealing effect and prevent water from accumulating in the sealing groove itself, preferably, the inner wall of the sealing groove has a first connecting... The first connecting surface is a plane, and the end of the waterstop body has a pressure-bearing surface. The two sides of the pressure strip abut against the first connecting surface and the pressure-bearing surface, respectively. The inner wall of the sealing groove also has a second connecting surface, which is connected to the end of the first connecting surface and has an arc-shaped structure that bends in the same direction as the opening of the sealing groove. The outer end face of the waterstop body is adapted to the arc-shaped structure. There are at least two steel profiles, which are spaced apart along the length of the bridge. The waterstop body is disposed between the two steel profiles. A first blocking part and a second blocking part are provided at the opening of the sealing groove of the steel profile. When the waterstop body is assembled with the steel profile, the pressure strip and the retaining edge are respectively limited and abut against the first blocking part and the second blocking part. Compared with the existing bolt-type fixing, the tight fit of the pressure strip can realize the quick assembly and disassembly of the waterstop body. Moreover, the ends of the waterstop body are all located in the sealing groove, which can also avoid the problem of weak sealing caused by long-term use.

[0004] However, in the existing technology CN221118234U patent, the water-stop sealing structure has poor water absorption and sealing ability. As a result, in the actual use of the water-stop sealing structure, it is impossible to absorb water and expand it as needed, which makes it inconvenient for the water-stop sealing structure to provide sealing support and affects the sealing effect of the water-stop sealing structure. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a waterstop sealing structure to solve the problem of poor water absorption and sealing ability of the waterstop sealing structure mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterstop sealing structure, comprising a waterstop, a sealing gasket fixedly disposed at the lower end of the waterstop, a waterstop pad fixedly disposed at the upper end of the waterstop, a water-absorbing expansion pad fixedly disposed at the lower end of the waterstop, a fixing screw hole fixedly disposed at the upper end of the waterstop, a fixing nut fixedly disposed on the upper side of the fixing screw hole, a tightening hole fixedly disposed at the upper end of the fixing nut, and a connecting post fixedly disposed at the lower end of the fixing nut.

[0009] The lower end of the connecting column is fixedly provided with a connecting bolt, and the lower end of the sealing gasket is fixedly provided with a polyvinyl alcohol fiber layer. A polyester microfiber layer is fixedly provided inside the polyvinyl alcohol fiber layer. Through the improvement of the waterstop sealing structure, the water absorption and sealing capacity of the waterstop sealing structure is improved. In the actual use of the waterstop sealing structure, the waterstop sealing structure can be swelled by absorbing water as needed, which facilitates the sealing support of the waterstop sealing structure and improves the sealing effect of the waterstop sealing structure.

[0010] The polyester microfiber layer contains a natural cotton fiber layer, the natural cotton fiber layer contains a natural bamboo fiber layer, and the natural bamboo fiber layer contains a polyester bulk fiber layer. The use of the waterstop and sealing gasket facilitates the installation of the waterstop sealing structure. The use of fixing screw holes further facilitates the connection of the waterstop sealing structure. The use of fixing nuts, tightening holes, connecting columns, and connecting bolts improves the installation effect of the waterstop sealing structure.

[0011] The lower end of the waterstop is fixedly provided with a waterproof coating, and the lower end of the waterproof coating is fixedly provided with a thermoplastic elastomer. The use of waterstop pads and water-absorbing expansion pads facilitates the waterstop sealing effect of the waterstop sealing structure. Then, the use of polyvinyl alcohol fiber layer, polyester microfiber layer, natural cotton fiber layer, natural bamboo fiber layer and polyester bulk fiber layer improves the sealing effect of the waterstop sealing structure.

[0012] The lower end of the thermoplastic elastomer is fixedly provided with a polypropylene fiber layer, and the lower end of the polypropylene fiber layer is fixedly provided with a high-elasticity fiber layer. The use of the waterproof coating, thermoplastic elastomer, and polypropylene fiber layer improves the protective effect of the waterstop sealing structure.

[0013] The lower end of the high-elasticity fiber layer is fixedly provided with a polytetrafluoroethylene layer, and the lower end of the polytetrafluoroethylene layer is fixedly provided with a carbon fiber layer. The use of the high-elasticity fiber layer, the polytetrafluoroethylene layer, and the carbon fiber layer improves the support effect of the waterstop sealing structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The waterstop sealing structure improves the water absorption and sealing capacity of the waterstop sealing structure. In the actual use of the waterstop sealing structure, it can be expanded by absorbing water as needed, which facilitates the sealing support of the waterstop sealing structure and improves the sealing effect of the waterstop sealing structure.

[0016] 2. This waterstop sealing structure facilitates installation through the use of waterstops and sealing gaskets. The use of fixing screw holes further facilitates the connection of the waterstop sealing structure. The use of fixing nuts, tightening holes, connecting columns, and connecting bolts improves the installation effect of the waterstop sealing structure.

[0017] 3. The waterstop sealing structure improves its water-stopping and sealing effect through the use of water-stopping pads and water-absorbing expansion pads. Furthermore, the use of polyvinyl alcohol fiber layers, polyester microfiber layers, natural cotton fiber layers, natural bamboo fiber layers, and polyester bulked fiber layers enhances the sealing effect. The use of waterproof coatings, thermoplastic elastomers, and polypropylene fiber layers improves the protective effect of the waterstop sealing structure. Finally, the use of high-elasticity fiber layers, polytetrafluoroethylene layers, and carbon fiber layers enhances the supporting effect of the waterstop sealing structure.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the fixing screw hole structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the polyester bulk fiber layer structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the thermoplastic elastomer structure of this utility model.

[0023] In the diagram: 1. Waterstop strip; 2. Sealing gasket; 3. Waterstop pad; 4. Water-absorbing expansion pad; 5. Fixing screw hole; 6. Fixing nut; 7. Tightening hole; 8. Connecting post; 9. Connecting bolt; 10. Polyvinyl alcohol fiber layer; 11. Polyester microfiber layer; 12. Natural cotton fiber layer; 13. Natural bamboo fiber layer; 14. Polyester bulked fiber layer; 15. Waterproof coating; 16. Thermoplastic elastomer; 17. Polypropylene fiber layer; 18. High-elasticity fiber layer; 19. Polytetrafluoroethylene layer; 20. Carbon fiber layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a waterstop sealing structure, including a waterstop 1, a sealing gasket 2 fixedly disposed at the lower end of the waterstop 1, a waterstop pad 3 fixedly disposed at the upper end of the waterstop 1, a water-absorbing expansion pad 4 fixedly disposed at the lower end of the waterstop pad 3, a fixing screw hole 5 fixedly disposed at the upper end of the waterstop 1, a fixing nut 6 fixedly disposed on the upper side of the fixing screw hole 5, a tightening hole 7 fixedly disposed at the upper end of the fixing nut 6, and a connecting post 8 fixedly disposed at the lower end of the fixing nut 6.

[0026] A connecting bolt 9 is fixedly installed at the lower end of the connecting column 8, and a polyvinyl alcohol fiber layer 10 is fixedly installed at the lower end of the sealing gasket 2. A polyester microfiber layer 11 is fixedly installed inside the polyvinyl alcohol fiber layer 10, a natural cotton fiber layer 12 is fixedly installed inside the polyester microfiber layer 11, a natural bamboo fiber layer 13 is fixedly installed inside the natural cotton fiber layer 12, and a polyester bulk fiber layer 14 is fixedly installed inside the natural bamboo fiber layer 13. The use of the waterstop 1 and the sealing gasket 2 facilitates the installation of the waterstop sealing structure. The use of the fixing screw hole 5 further facilitates the connection of the waterstop sealing structure. The use of the fixing nut 6, tightening hole 7, connecting column 8, and connecting bolt 9 improves the installation effect of the waterstop sealing structure.

[0027] A waterproof coating 15 is fixedly installed at the lower end of the waterstop 1. A thermoplastic elastomer 16 is fixedly installed at the lower end of the waterproof coating 15. A polypropylene fiber layer 17 is fixedly installed at the lower end of the thermoplastic elastomer 16. A high-elasticity fiber layer 18 is fixedly installed at the lower end of the polypropylene fiber layer 17. A polytetrafluoroethylene layer 19 is fixedly installed at the lower end of the high-elasticity fiber layer 18. A carbon fiber layer 20 is fixedly installed at the lower end of the polytetrafluoroethylene layer 19. The use of the waterstop pad 3 and the water-absorbing expansion pad 4 facilitates the water-stopping of the waterstop sealing structure. The sealing effect is improved by using polyvinyl alcohol fiber layer 10, polyester microfiber layer 11, natural cotton fiber layer 12, natural bamboo fiber layer 13, and polyester bulked fiber layer 14. The sealing effect of the waterstop sealing structure is improved by using waterproof coating 15, thermoplastic elastomer 16, and polypropylene fiber layer 17. The support effect of the waterstop sealing structure is improved by using high elastic fiber layer 18, polytetrafluoroethylene layer 19, and carbon fiber layer 20.

[0028] Working principle: First, the use of waterstop 1 and sealing gasket 2 facilitates the installation of the waterstop sealing structure. Then, the use of fixing screw hole 5 further facilitates the connection of the waterstop sealing structure. Then, the use of fixing nut 6, tightening hole 7, connecting column 8, and connecting bolt 9 improves the installation effect of the waterstop sealing structure. Then, the use of waterstop gasket 3 and water-absorbing expansion gasket 4 facilitates the water-stop sealing effect of the waterstop sealing structure. Then, the use of polyvinyl alcohol fiber layer 10, polyester microfiber layer 11, natural cotton fiber layer 12, natural bamboo fiber layer 13, and polyester bulked fiber layer 14 improves the sealing effect of the waterstop sealing structure. Then, the use of waterproof coating 15, thermoplastic elastomer 16, and polypropylene fiber layer 17 improves the protective effect of the waterstop sealing structure. Finally, the use of high elastic fiber layer 18, polytetrafluoroethylene layer 19, and carbon fiber layer 20 improves the support effect of the waterstop sealing structure.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A waterstop sealing structure, comprising a waterstop (1), characterized in that: A sealing gasket (2) is fixedly installed at the lower end of the waterstop (1), a waterstop pad (3) is fixedly installed at the upper end of the waterstop (1), a water-absorbing expansion pad (4) is fixedly installed at the lower end of the waterstop pad (3), a fixing screw hole (5) is fixedly installed at the upper end of the waterstop (1), a fixing nut (6) is fixedly installed on the upper side of the fixing screw hole (5), a tightening hole (7) is fixedly installed at the upper end of the fixing nut (6), and a connecting post (8) is fixedly installed at the lower end of the fixing nut (6).

2. The waterstop sealing structure according to claim 1, characterized in that: The lower end of the connecting column (8) is fixedly provided with a connecting bolt (9), the lower end of the sealing gasket (2) is fixedly provided with a polyvinyl alcohol fiber layer (10), and a polyester microfiber layer (11) is fixedly provided inside the polyvinyl alcohol fiber layer (10).

3. The waterstop sealing structure according to claim 2, characterized in that: A natural cotton fiber layer (12) is fixedly disposed inside the polyester microfiber layer (11), a natural bamboo fiber layer (13) is fixedly disposed inside the natural cotton fiber layer (12), and a polyester bulk fiber layer (14) is fixedly disposed inside the natural bamboo fiber layer (13).

4. The waterstop sealing structure according to claim 3, characterized in that: A waterproof coating (15) is fixedly provided at the lower end of the waterstop (1), and a thermoplastic elastomer (16) is fixedly provided at the lower end of the waterproof coating (15).

5. The waterstop sealing structure according to claim 4, characterized in that: A polypropylene fiber layer (17) is fixedly disposed at the lower end of the thermoplastic elastomer (16), and a high-elasticity fiber layer (18) is fixedly disposed at the lower end of the polypropylene fiber layer (17).

6. The waterstop sealing structure according to claim 5, characterized in that: A polytetrafluoroethylene layer (19) is fixedly disposed at the lower end of the high elastic fiber layer (18), and a carbon fiber layer (20) is fixedly disposed at the lower end of the polytetrafluoroethylene layer (19).