Advanced waterstop structure
By using a waterstop structure reinforced with high-strength synthetic rubber and steel wire mesh, combined with the design of pre-embedded pipes and grouting nozzles, the adaptability and lifespan of the waterstop in complex environments are solved, achieving efficient waterproofing performance and simplified installation and maintenance.
Patent Information
- Application Number
- CN202520046122.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing waterstops have poor adaptability to complex environments, short lifespan, complicated installation and difficult maintenance. They perform poorly, especially in high water pressure or strong acid and alkali environments, and the materials are prone to aging or damage, resulting in unsatisfactory waterproofing effects.
The main waterstop is made of high-strength synthetic rubber with an embedded steel wire mesh reinforcement layer. Combined with the design of pre-embedded pipes and grouting nozzles, the structural stability is improved by using tough spring coils and cross steel wire mesh. The interlocking structure of connecting pipes and butt joints enables quick installation and convenient maintenance.
It improves the adaptability and reliability of waterstops in complex environments, extends service life, reduces engineering costs, simplifies the installation process, provides convenient maintenance methods, and enhances the flexibility and maintainability of the system.
Smart Images

Figure CN223661071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to an advanced technology. Background Technology
[0002] With the rapid pace of urbanization, the development of high-rise buildings and underground spaces is increasing, placing higher demands on the waterproofing performance of buildings. Waterstops, as key components for preventing water penetration, are widely used in large-scale projects such as bridges, tunnels, and basements. Existing waterstop technology can meet the seepage prevention needs under most construction conditions. However, under specific environmental conditions, such as high groundwater pressure and complex geological structures, traditional waterstops still struggle to achieve ideal waterproofing results. Furthermore, the installation of traditional waterstops is cumbersome, costly, and difficult to maintain.
[0003] Currently, the market offers various types of waterstops, including rubber waterstops, PVC waterstops, and metal waterstops. Rubber waterstops, with their good elasticity and strong adaptability to deformation, are widely used in various waterproofing projects. However, rubber is prone to aging when exposed to harsh environments for extended periods, leading to a decline in sealing performance. PVC waterstops have good chemical corrosion resistance, but due to their high rigidity, they are not easily adapted to large deformations, easily causing cracks and affecting waterproofing effectiveness. Metal waterstops are typically used in applications with high seepage pressure. While they are strong and durable, they are expensive, difficult to install, and inconvenient to replace if damaged. Each type of waterstop has its advantages and disadvantages in practical applications, but a common problem is that their structural design cannot adequately cope with complex and changing actual construction environments, especially under dynamically changing geological conditions, often exhibiting varying degrees of inadequacy.
[0004] Although there are many types of waterstops on the market with varying functions, they generally suffer from poor adaptability, short lifespan, and complex installation, especially in extreme environments where their performance is particularly unsatisfactory. For example, in high water pressure or strong acid / alkali environments, ordinary waterstop materials are easily corroded, leading to premature failure; in areas with large temperature differences, the aging rate of the material is also accelerated, shortening its service life. Furthermore, the maintenance and replacement of traditional waterstops are very troublesome, not only increasing project costs but also potentially causing more serious safety problems due to untimely replacement. Utility Model Content
[0005] This utility model proposes an advanced waterstop structure, which aims to improve the problem of rapid aging and short lifespan of some materials in existing devices.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An advanced waterstop structure includes a waterstop body, a central connecting pipe fixedly connected to the middle of the waterstop body, a filling chamber inside the waterstop body, a hollow chamber inside the central connecting pipe, a resilient spring coil fixedly connected inside the hollow chamber, a cross-shaped steel wire mesh uniformly fixedly connected inside the waterstop body, a pre-embedded pipe filled inside the central connecting pipe, a pre-embedded pipe opening on one side of the top of the central connecting pipe, multiple outflow holes on both sides of the pre-embedded pipe, a connecting pipe fixedly connected to one side of each outflow hole, and a connecting pipe detachably connected to the top of the connecting pipe.
[0008] Furthermore, the structure consists of three main parts: the main waterstop, the embedded pipe, and the grouting nozzle. The main waterstop is made of high-strength synthetic rubber with an embedded steel wire mesh reinforcement layer. Both ends have butt joints for seamless connection with other parts using a special adhesive. The embedded pipe is located within the main waterstop, running the entire length of the waterstop. One end is closed, while the other is open and connected to the grouting nozzle, which protrudes from the upper surface of the waterstop for easy injection of sealing material later. When the waterstop deforms under stress, the internal steel wire mesh effectively disperses stress, reducing the risk of localized damage and improving overall stability.
[0009] As a further description of the above technical solution:
[0010] The connecting pipe is fixedly connected to the outside of a fixing ring, and slidably connected to the outside of a sliding limiting sleeve. A strong spring is installed inside the sliding limiting sleeve, and two retaining balls are installed inside the connecting pipe.
[0011] Furthermore, the high-strength synthetic rubber used in the main waterstop must possess excellent wear resistance and weather resistance; EPDM rubber (ethylene propylene diene monomer rubber) is recommended. The wire mesh should ideally be made of stainless steel wire with a diameter of approximately 0.5mm and a mesh size of approximately 4*4mm to ensure sufficient support without adding extra weight. The embedded pipe can be made of PVC with an outer diameter of 16mm and a wall thickness of 2mm to ensure unobstructed flow while maintaining structural strength. The grouting nozzle is recommended to be made of copper alloy with an M12x1.5 thread for easy and quick connection to the high-pressure grouting pump.
[0012] As a further description of the above technical solution:
[0013] The outside of the pre-embedded pipe is in contact with the inner wall of the central connecting pipe, and the outflow holes on both sides of the pre-embedded pipe are aligned with the filling chambers on both sides of the waterstop belt body.
[0014] Furthermore, the grout, which facilitates filling, enters the filling chamber, allowing the waterstop to fully expand and block external water.
[0015] As a further description of the above technical solution:
[0016] The outer side of the connecting pipe is in contact with the inner wall of the middle connecting pipe, and the outer side of the connecting pipe is in contact with the inner wall of the buried pipe opening.
[0017] Furthermore, this design facilitates external injection into the interior of the embedded pipe.
[0018] As a further description of the above technical solution:
[0019] One end of the powerful spring is fixedly connected to the outer side of the fixed ring, that is, the side close to the connecting pipe, and the other end of the powerful spring is fixedly connected to the inner wall of the sliding limiting sleeve.
[0020] Furthermore, the strong spring provides a relatively effective elastic force to the structures on both sides in the middle.
[0021] As a further description of the above technical solution:
[0022] Two holes are provided on one side of the connecting pipe, that is, the side near the connecting tube. An annular groove is provided on the outer side of the connecting tube, that is, the side near the connecting pipe. The holes and the annular groove have the same diameter.
[0023] As a further description of the above technical solution:
[0024] The outer surface of the retaining ball contacts the inner wall of the connecting pipe, and the outer surface of the retaining ball contacts the outer annular groove of the connecting pipe.
[0025] Furthermore, this allows the ball valve to fully engage with the external connecting pipe and coupling pipe, and to engage relatively stably.
[0026] As a further description of the above technical solution:
[0027] The inner wall of the sliding limiting sleeve is in contact with the outside of the connecting pipe, and the inner wall of the sliding limiting sleeve is in contact with the outside of the retaining ball.
[0028] Furthermore, the well-defined limiting mechanism prevents the ball from moving easily inside the connecting tube, thus maintaining stability.
[0029] This utility model has the following beneficial effects:
[0030] 1. This utility model improves the adaptability and reliability of the waterstop in complex construction environments. Even under harsh conditions such as high water pressure and strong acids and alkalis, it can maintain excellent waterproof performance, extend the service life of the waterstop, reduce the maintenance frequency, and reduce project costs.
[0031] 2. In this utility model, the interlocking structure between the connecting pipe and the connecting tube enables relatively quick and stable connection, simplifies the installation process, facilitates rapid on-site construction, and also provides a convenient way for later maintenance, enhancing the flexibility and maintainability of the system. Attached Figure Description
[0032] Figure 1 This is a perspective view of an advanced waterstop structure proposed in this utility model;
[0033] Figure 2 This is a schematic diagram of a cross-wire mesh structure for an advanced waterstop structure proposed in this utility model;
[0034] Figure 3 This is a cross-sectional view of the waterstop strip structure of an advanced waterstop strip structure proposed in this utility model;
[0035] Figure 4 This is a schematic diagram of the pre-embedded pipe structure of the advanced waterstop structure proposed in this utility model;
[0036] Figure 5 This is a schematic diagram of the butt joint structure of an advanced waterstop structure proposed in this utility model.
[0037] Legend:
[0038] 1. Waterstop strip body; 2. Central connecting pipe; 3. Filling chamber; 4. Hollow chamber; 5. Tough spring coil; 6. Crossed wire mesh; 7. Embedded pipe; 8. Embedded pipe opening; 9. Outlet hole; 10. Connecting pipe; 11. Butt joint pipe; 12. Fixing ring; 13. Sliding limit sleeve; 14. Strong spring; 15. Clamping ball. Detailed Implementation
[0039] 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.
[0040] Reference Figures 1 to 4This utility model provides an embodiment of an advanced waterstop structure, comprising a waterstop body 1, a central connecting pipe 2 fixedly connected to the middle of the waterstop body 1, a filling chamber 3 inside the waterstop body 1, a hollow chamber 4 inside the central connecting pipe 2, a resilient spring coil 5 fixedly connected inside the hollow chamber 4, a cross-shaped steel wire mesh 6 uniformly fixedly connected inside the waterstop body 1, a pre-embedded pipe 7 filled inside the central connecting pipe 2, a pre-embedded pipe opening 8 on one side of the top of the central connecting pipe 2, and multiple outflow holes 9 on both the left and right sides of the pre-embedded pipe 7. The outside of pipe 7 is in contact with the inner wall of the middle connecting pipe 2. The two outlet holes 9 on both sides of the pre-embedded pipe 7 are aligned with the filling chambers 3 on both sides of the waterstop belt body 1. A connecting pipe 10 is fixedly connected to one side of the outlet hole 9. A connecting pipe 11 is detachably connected to the top of the connecting pipe 10. Two holes are opened on one side of the connecting pipe 10, that is, the side near the connecting pipe 11. An annular groove is opened on the outer side of the connecting pipe 11, that is, the side near the connecting pipe 10. The diameter of the holes and the annular groove are the same. The outside of the connecting pipe 10 is in contact with the inner wall of the middle connecting pipe 2. The outside of the connecting pipe 10 is in contact with the inner wall of the buried pipe port 8.
[0041] Specifically, the waterstop belt body 1 is the main part of the entire device, made of high-strength, corrosion-resistant materials such as rubber. Its main function is to prevent water penetration and ensure the sealing of the structure. The central connecting pipe 2 is an important component that connects the waterstop belt body 1 and other structures, and plays the role of guiding and distributing fluid. Based on the fluid flow requirements, a suitable inner diameter and length are determined to ensure smooth fluid flow. Corrosion-resistant and high-strength materials are typically used to ensure stability under high water pressure and chemical corrosion environments. The filling chamber 3, located inside the waterstop body 1, is mainly used to fill sealing materials or other fluids to enhance the water-stopping effect. The hollow chamber 4, located inside the central connecting pipe 2, is mainly used to accommodate the tough spring coil 5. The tough spring coil 5 is an important component within the hollow chamber 4; under external pressure, the spring provides restoring force to help maintain the waterstop's sealing state. High-durability materials are selected to ensure stable performance during long-term use. Cross-wire mesh 6 is uniformly fixed inside the waterstop body 1, mainly used to enhance the strength and stability of the structure. Appropriate mesh size and wire diameter are selected to ensure no deformation under pressure. Stainless steel is typically used to improve durability. The embedded pipe 7, located inside the central connecting pipe 2, is responsible for the fluid... For guiding and discharging, multiple outflow holes 9 are opened on both sides of the pre-embedded pipe 7 to guide the fluid to the filling chamber 3, enhancing the water-stopping effect. The appropriate pipe wall thickness is determined according to the fluid flow pressure to ensure that it does not rupture under high pressure. The pipe port 8 is the connection part between the pre-embedded pipe 7 and the external environment. The sealing of the pipe port 8 is ensured to prevent water from seeping through the joint. The design takes into account the ease of connection and disassembly, maintenance and replacement. The outflow holes 9 are designed to ensure smooth fluid flow and enhance the function of the water-stop. The connecting pipe 10 is used to connect the water-stop and the connecting pipe 11. The design of the connecting pipe 10 needs to be easy to disassemble and replace for maintenance. The interface of the connecting pipe 10 needs to be designed with a good sealing structure to prevent leakage. The design of the connecting pipe 11 should take into account its fit with the connecting pipe 10 to ensure smooth fluid flow. The design of the annular groove can help fix the retaining ball 15 to ensure the stability of the connection. The material selection needs to consider pressure resistance to adapt to high pressure environment.
[0042] Reference Figure 1 , Figure 5A fixing ring 12 is fixedly connected to the outside of the connecting pipe 10, and a sliding limiting sleeve 13 is slidably connected to the outside of the connecting pipe 10. A strong spring 14 is installed inside the sliding limiting sleeve 13. One end of the strong spring 14 is fixedly connected to the outside of the fixing ring 12, that is, the side close to the connecting pipe 11, and the other end of the strong spring 14 is fixedly connected to the inner wall of the sliding limiting sleeve 13. Two retaining balls 15 are installed inside the connecting pipe 10. The outside of the retaining balls 15 is in contact with the inner wall of the connecting pipe 10, and the outside of the retaining balls 15 is in contact with the outer annular groove of the connecting pipe 11. The inner wall of the sliding limiting sleeve 13 is in contact with the outside of the connecting pipe 10, and the inner wall of the sliding limiting sleeve 13 is in contact with the outside of the retaining balls 15.
[0043] Specifically, the fixing ring 12 is used to fix the connecting pipe 10, ensuring the stability of the entire structure. It is made of high-strength material to ensure that it will not deform under high pressure. Considering the ease of installation and disassembly, the sliding limit sleeve 13 provides the sliding and limiting functions of the connecting pipe 10. The inner wall must be smooth to ensure that the connecting pipe 10 can slide smoothly. The reasonably designed limiting structure prevents the connecting pipe 10 from sliding excessively. The strong spring 14 is used to provide elastic support for the connecting pipe 10. It is made of high elasticity material to ensure stable performance during long-term use. It is necessary to ensure that the fixed position of the spring can effectively provide support force. The retaining ball 15 is used to connect the connecting pipe 10 and the connecting pipe 11 to ensure the stability of the structure. The size of the retaining ball 15 must match the inner diameter of the connecting pipe 10 and the connecting pipe 11 to ensure good contact. Wear-resistant material is selected to improve its service life.
[0044] Working principle: First, the waterstop belt body 1 serves as the main body. Utilizing its high strength and corrosion-resistant material properties, it forms a sealed environment. Under the pressure of the external environment, water first comes into contact with the waterstop belt body 1. The design of the belt body ensures that it can effectively resist water intrusion.
[0045] The function of the central connecting pipe 2 is to guide and distribute fluid. Its internal hollow chamber 4 houses the resilient spring coil 5. When external water pressure is applied to the waterstop, the resilient spring coil 5 is compressed, providing restoring force to help maintain the waterstop's seal. At this time, fluid may enter the central connecting pipe 2 through the embedded pipe 7. The embedded pipe 7 is designed with multiple outflow holes 9 on both sides, which guide the fluid to the filling chamber 3, thereby enhancing the water-stopping effect.
[0046] When the sealing material or fluid inside the filling chamber 3 is under pressure, it will further enhance the sealing performance of the waterstop and prevent water penetration. The presence of the cross wire mesh 6 provides additional strength and stability to the entire structure, ensuring that it will not deform under high water pressure.
[0047] The design of the outlet hole 9 ensures smooth fluid flow, allowing the filling chamber 3 to discharge excess fluid in a timely manner and avoid structural damage caused by excessive pressure. The connection between the connecting pipe 10 and the coupling pipe 11 provides a flexible maintenance and replacement method, ensuring convenient operation when needed.
[0048] Under the action of the sliding limit sleeve 13 of the connecting pipe 10, the connecting pipe 10 can slide within a certain range to adapt to changes in the external environment. The strong spring 14 provides the necessary elastic support for the connecting pipe 10, ensuring that it can effectively return to its original position when subjected to external pressure.
[0049] The design of the ball 15 ensures a secure connection between the connecting pipe 10 and the coupling pipe 11, preventing loosening of the joint due to changes in water flow or pressure. The entire device, through the coordinated operation of these structures, forms a highly efficient waterproof system, ensuring reliability and durability under various environmental conditions.
[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An advanced waterstop structure, comprising a waterstop belt body (1), characterized in that: The middle part of the waterstop belt body (1) is fixedly connected to a central connecting pipe (2). The inside of the waterstop belt body (1) is provided with a filling chamber (3). The inside of the central connecting pipe (2) is provided with a hollow chamber (4). The inside of the hollow chamber (4) is fixedly connected with a tough spring coil (5). The inside of the waterstop belt body (1) is uniformly fixedly connected with a cross steel wire mesh (6). The inside of the central connecting pipe (2) is filled with a pre-embedded pipe (7). The top side of the central connecting pipe (2) is provided with a buried pipe opening (8). The left and right sides of the pre-embedded pipe (7) are provided with multiple outflow holes (9). The side of the outflow hole (9) is fixedly connected with a connecting pipe (10). The top of the connecting pipe (10) is detachably connected with a connecting pipe (11).
2. The advanced waterstop structure according to claim 1, characterized in that: The connecting pipe (10) is fixedly connected to the outside of a fixing ring (12), and the connecting pipe (10) is slidably connected to a sliding limiting sleeve (13). A strong spring (14) is provided inside the sliding limiting sleeve (13), and two locking balls (15) are provided inside the connecting pipe (10).
3. The advanced waterstop structure according to claim 1, characterized in that: The outside of the pre-embedded pipe (7) is in contact with the inner wall of the middle connecting pipe (2), and the outflow holes (9) on both sides of the pre-embedded pipe (7) are aligned with the filling chambers (3) on both sides of the waterstop belt body (1).
4. The advanced waterstop structure according to claim 1, characterized in that: The outside of the connecting pipe (10) is in contact with the inner wall of the middle connecting pipe (2), and the outside of the connecting pipe (10) is in contact with the inner wall of the buried pipe opening (8).
5. The advanced waterstop structure according to claim 2, characterized in that: One end of the strong spring (14) is fixedly connected to the outer side of the fixed ring (12), that is, the side close to the connecting pipe (11), and the other end of the strong spring (14) is fixedly connected to the inner wall of the sliding limiting sleeve (13).
6. The advanced waterstop structure according to claim 1, characterized in that: Two holes are provided on one side of the connecting pipe (10), that is, the side near the connecting pipe (11). An annular groove is provided on the outer side of the connecting pipe (11), that is, the side near the connecting pipe (10). The holes and the annular groove have the same diameter.
7. The advanced waterstop structure according to claim 2, characterized in that: The outer side of the ball (15) is in contact with the inner wall of the connecting pipe (10), and the outer side of the ball (15) is in contact with the outer annular groove of the connecting pipe (11).
8. The advanced waterstop structure according to claim 2, characterized in that: The inner wall of the sliding limiting sleeve (13) is in contact with the outside of the connecting pipe (10), and the inner wall of the sliding limiting sleeve (13) is in contact with the outside of the locking ball (15).