HDPE rainwater pipe and reinforced concrete rainwater well connecting structure
By using upper and lower clamps to fix the hollow mounting base and filling it with wet concrete at the connection between HDPE rainwater pipe and reinforced concrete rainwater well, combined with the support structure of threaded cylinder seat and support cylinder, as well as elastic sealing ring and expansion waterstop, the problems of interface deformation and reduced sealing performance caused by the difference in material expansion coefficient and settlement adaptability are solved, achieving a stable connection and efficient sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA NUCLEAR IND HUATAI CONSTR
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-26
AI Technical Summary
When HDPE rainwater pipes and reinforced concrete rainwater wells experience temperature changes and foundation settlement, due to differences in the linear expansion coefficients of the materials and their varying settlement adaptability, deformation and decreased sealing performance often occur at the joints.
The hollow mounting base is fixed by upper and lower clamps, and the threaded cylinder seat is fixed by filling the inside with wet concrete material, which enhances the load-bearing capacity. The threaded cylinder seat and the support cylinder are supported by each other. Combined with the elastic sealing ring and the expansion water stop, it can adapt to thermal expansion and contraction and foundation settlement, and improve the connection stability and sealing performance.
It effectively reduces interface deformation caused by foundation settlement, enhances connection stability, improves sealing performance, and ensures a stable connection between HDPE rainwater pipes and reinforced concrete rainwater wells.
Smart Images
Figure CN224412754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal drainage technology, and in particular to a connection structure between an HDPE rainwater pipe and a reinforced concrete rainwater well. Background Technology
[0002] In municipal drainage systems, HDPE rainwater pipes are widely used due to their advantages such as corrosion resistance, light weight, and convenient installation, while precast reinforced concrete rainwater wells are a common type of well due to their high structural strength and good stability.
[0003] Due to the significant difference in the coefficients of linear expansion between HDPE and reinforced concrete, HDPE pipes expand and contract more rapidly with temperature changes than reinforced concrete rainwater wells. Furthermore, when uneven settlement occurs in the foundation, the adaptability of reinforced concrete rainwater wells and HDPE pipes to settlement differs, and deformation problems often occur at the joints. Therefore, this application proposes a connection structure between HDPE rainwater pipes and reinforced concrete rainwater wells. Utility Model Content
[0004] Based on this, it is necessary to provide a connection structure between HDPE rainwater pipes and reinforced concrete rainwater wells to address the aforementioned technical problems. After the hollow mounting base is fixed to the outside of the rainwater well body using upper and lower clamps, the hollow mounting base facilitates the filling of wet concrete material into it, thereby casting and fixing the threaded cylinder seat and improving its load-bearing capacity. After the pipe joint is screwed into the inner side of the threaded cylinder seat for installation, the threaded cylinder seat, in conjunction with the support cylinder, provides close support to the inner and outer sides of the pipe joint, enhancing connection stability and reducing interface deformation caused by foundation settlement. Furthermore, the use of elastic sealing rings and expansion sealing strips adapts to the thermal expansion and contraction of the pipe joint and maintains a constant fit, further improving sealing performance.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A connection structure between an HDPE rainwater pipe and a reinforced concrete rainwater well, which is used in municipal drainage;
[0007] The system includes a rainwater well body, a pipe joint, and a pipeline. The rainwater well body has an internal connecting pipe hole. A hollow mounting base is located on the outside of the rainwater well body and outside the connecting pipe hole. A threaded sleeve seat is located inside the connecting pipe hole. Wet concrete is filled inside the hollow mounting base and outside the threaded sleeve seat. The threaded sleeve seat is fixed to the wet concrete. An elastic sealing ring is fixed to one end of the threaded sleeve seat and outside the hollow mounting base. A support cylinder is fitted to the inside of the other end of the threaded sleeve seat and inside the rainwater well body. The end of the pipe joint away from the pipeline is located inside the threaded sleeve seat and the elastic sealing ring and is threadedly connected to the threaded sleeve seat. The outside of the pipe joint is fitted to the elastic sealing ring, and the inside of the pipe joint is fitted to the outside of the support cylinder.
[0008] As a preferred embodiment of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model, an expansion waterstop is fixedly provided on the inner side of the through hole of the pipe fitting and on the outer side of the threaded cylinder seat, and the expansion waterstop is in contact with the threaded cylinder seat.
[0009] As a preferred embodiment of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model, an upper clamp and a lower clamp are fixed on the outer side of the rainwater well body and at the upper and lower ends of the hollow mounting base, respectively, and the upper and lower ends of the hollow mounting base are fixed with bolts to the upper clamp and the lower clamp, respectively.
[0010] As a preferred embodiment of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model, a material guide seat is fixedly connected to the inside of the upper end of the hollow mounting base and to the outside of the upper clamp, and the hollow mounting base and the material guide seat are connected.
[0011] As a preferred embodiment of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model, a flange outer ring is fixed on the outer side of the support cylinder away from the elastic sealing ring, and multiple high-strength bolts are fixed in a ring array between the inner side of the flange outer ring and the threaded cylinder seat.
[0012] As a preferred embodiment of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model, a corrugated compensator is provided between the pipe joint and the pipe line.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model uses upper and lower clamps to fix the hollow mounting base to the outside of the rainwater well body. The hollow mounting base facilitates the filling of wet concrete material into it to cast and fix the threaded cylinder seat, thereby improving the load-bearing capacity of the threaded cylinder seat. After the pipe joint is screwed into the inside of the threaded cylinder seat for installation, the threaded cylinder seat and the support cylinder together achieve close support on the inside and outside of the pipe joint, enhancing the connection stability and reducing the deformation of the interface caused by foundation settlement. Furthermore, the use of elastic sealing rings and expansion sealing strips adapts to the thermal expansion and contraction of the pipe joint and always keeps it in close contact, further improving the sealing performance. Attached Figure Description
[0015] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 A schematic diagram of the overall structure of the connection between the HDPE rainwater pipe and the reinforced concrete rainwater well provided by this utility model;
[0017] Figure 2 A schematic diagram of the inner side of the through hole of the HDPE rainwater pipe and the reinforced concrete rainwater well connection structure provided by this utility model.
[0018] Figure 3 A schematic diagram of the inner side of the hollow mounting base in the connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well provided by this utility model.
[0019] Figure 4 A schematic diagram of the outer side of the threaded cylinder seat of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model.
[0020] Figure 5 A schematic diagram of the inner side of the threaded sleeve seat of the connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well provided by this utility model.
[0021] The markings in the diagram are explained as follows:
[0022] 1. Rainwater well body; 2. Pipeline through hole; 3. Expansion seal; 4. Hollow mounting base; 5. Upper clamp; 6. Lower clamp; 7. Material guide seat; 8. Wet concrete material; 9. Threaded cylinder seat; 10. Elastic sealing ring; 11. Support cylinder; 12. Flange outer ring; 13. High-strength bolt; 14. Pipe joint; 15. Pipeline route; 16. Corrugated compensator. Detailed Implementation
[0023] As described in the background section, due to the significant difference in the coefficients of linear expansion between HDPE and reinforced concrete, and the different adaptability of reinforced concrete rainwater wells and HDPE pipes to settlement when uneven settlement occurs in the foundation, deformation problems often occur at the joints.
[0024] To solve this technical problem, this utility model provides a connection structure between HDPE rainwater pipes and reinforced concrete rainwater wells, which is applied to municipal drainage.
[0025] The system includes a rainwater well body 1, a pipe joint 14, and a pipeline 15. The rainwater well body 1 has a through hole 2 for connecting pipes. A hollow mounting base 4 is installed on the outside of the rainwater well body 1 and outside the through hole 2. A threaded cylinder seat 9 is installed inside the through hole 2. Wet concrete material 8 is filled inside the hollow mounting base 4 and outside the threaded cylinder seat 9. The threaded cylinder seat 9 is fixed to the wet concrete material 8. An elastic sealing ring 10 is fixed at one end of the threaded cylinder seat 9 and outside the hollow mounting base 4. A support cylinder 11 is fitted inside the other end of the threaded cylinder seat 9 and inside the rainwater well body 1. The end of the pipe joint 14 away from the pipeline 15 is located inside the threaded cylinder seat 9 and the elastic sealing ring 10 and is threadedly connected to the threaded cylinder seat 9. The outside of the pipe joint 14 is fitted with the elastic sealing ring 10, and the inside of the pipe joint 14 is fitted with the outside of the support cylinder 11.
[0026] The HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model uses concrete wet material 8 to fill the hollow mounting base 4 and then cast and fix the threaded cylinder base 9, thereby improving the load-bearing capacity of the threaded cylinder base 9. After the pipe joint 14 is screwed into the inner side of the threaded cylinder base 9 for installation, the threaded cylinder base 9 and the support cylinder 11 together achieve close support for the inner and outer sides of the pipe joint 14, enhance the connection stability, reduce the interface deformation caused by foundation settlement, and use the elastic sealing ring 10 to adapt to the thermal expansion and contraction of the pipe joint 14 and always keep it in close contact, further improving the sealing performance.
[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] Example 1:
[0030] Please refer to Figure 1-5A connection structure between an HDPE rainwater pipe and a reinforced concrete rainwater well includes a rainwater well body 1, a pipe joint 14, and a pipe line 15. To facilitate the connection of the pipe joint 14 into the rainwater well body 1, a pipe connection through hole 2 is provided inside the rainwater well body 1. To reduce the deformation of the interface caused by foundation settlement, a hollow mounting seat 4 is provided on the outside of the rainwater well body 1 and outside the pipe connection through hole 2. A threaded cylinder seat 9 is provided on the inside of the pipe connection through hole 2. Concrete wet material 8 is filled on the inside of the hollow mounting seat 4 and outside the threaded cylinder seat 9. The threaded cylinder seat 9 is fixed to the concrete wet material 8. By wrapping the concrete wet material 8 on the outside of the threaded cylinder seat 9, the load-bearing capacity of the threaded cylinder seat 9 is improved, making the threaded cylinder seat 9 less prone to deformation due to settlement.
[0031] To further improve the sealing performance, an elastic sealing ring 10 is fixed at one end of the threaded sleeve seat 9 and outside the hollow mounting base 4. The end of the pipe joint 14 away from the pipeline 15 is located inside the threaded sleeve seat 9 and the elastic sealing ring 10 and is threadedly connected to the threaded sleeve seat 9. The outer side of the pipe joint 14 is in contact with the elastic sealing ring 10. At the same time, an expansion waterstop 3 is fixed inside the pipe through hole 2 and outside the threaded sleeve seat 9. The expansion waterstop 3 is in contact with the threaded sleeve seat 9. In order to further provide auxiliary support for the inner side of the pipe joint 14 and thus further enhance the connection stability, a support cylinder 11 is attached to the inner side of the other end of the threaded sleeve seat 9 and inside the rainwater well body 1. The inner side of the pipe joint 14 is in contact with the outer side of the support cylinder 11.
[0032] Example 2:
[0033] The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well provided in Example 1 has been further optimized, specifically, as follows: Figure 1-5 As shown, in order to fix the position of the hollow mounting base 4, an upper clamp 5 and a lower clamp 6 are fixed to the outer side of the rainwater well body 1 and located at the upper and lower ends of the hollow mounting base 4, respectively. The upper and lower ends of the hollow mounting base 4 are bolted to the upper clamp 5 and the lower clamp 6, respectively. In order to facilitate the filling and pouring of wet concrete material 8 into the hollow mounting base 4, a guide seat 7 is fixedly connected to the inner side of the upper end of the hollow mounting base 4 and located outside the upper clamp 5. The hollow mounting base 4 is connected to the guide seat 7.
[0034] To enhance the tightness of the connection between the support cylinder 11 and the threaded cylinder seat 9, a flange outer ring 12 is fixed to the outer side of the support cylinder 11 away from the elastic sealing ring 10. Multiple high-strength bolts 13 are fixed in a ring array between the inner side of the flange outer ring 12 and the threaded cylinder seat 9. In order to help compensate for the thermal displacement, mechanical deformation and absorb various mechanical vibrations of the pipe joint 14 and the pipeline 15, a corrugated compensator 16 is connected between the pipe joint 14 and the pipeline 15, thereby reducing the deformation stress of the pipe joint 14 and the pipeline 15 and improving their service life.
[0035] The usage process of the HDPE rainwater pipe and reinforced concrete rainwater well connection structure provided by this utility model is as follows: After the hollow mounting base 4 is installed and fixed on the outside of the rainwater well body 1 using the upper clamp 5 and the lower clamp 6, the threaded cylinder seat 9 passes through the hollow mounting base 4, the pipe through hole 2 and extends to the inside of the rainwater well body 1. At this time, the concrete wet material 8 is filled into the hollow mounting base 4 through the material guide seat 7, so that the concrete wet material 8 wraps the threaded cylinder seat 9 and fixes the threaded cylinder seat 9, the concrete wet material 8 and the hollow mounting base 4 as a whole, improving the overall load-bearing capacity. At this time, the pipe joint 14 is screwed into the inside of the threaded cylinder seat 9 for installation using the threaded connection between the pipe joint 14 and the threaded cylinder seat 9. At the same time, the support cylinder 11 enters the inside of the pipe joint 14 to achieve auxiliary support for the inside of the pipe joint 14. With the help of the elastic sealing ring 10, it adapts to the thermal expansion and contraction of the pipe joint 14 and always fits it, further improving the sealing performance and ensuring that the connection between the rainwater well body 1 and the pipe joint 14 is more stable and less prone to deformation.
Claims
1. A connection structure between an HDPE rainwater pipe and a reinforced concrete rainwater well, characterized in that, The system includes a rainwater well body (1), a pipe joint (14), and a pipeline (15). The rainwater well body (1) has an internal pipe connection hole (2). A hollow mounting base (4) is located on the outside of the rainwater well body (1) and outside the pipe connection hole (2). A threaded sleeve seat (9) is located inside the pipe connection hole (2). Wet concrete material (8) is filled inside the hollow mounting base (4) and outside the threaded sleeve seat (9). The threaded sleeve seat (9) is fixed to the wet concrete material (8). An elastic sealing ring (10) is fixed at one end and outside the hollow mounting base (4). A support cylinder (11) is fitted inside the other end of the threaded cylinder seat (9) and inside the rainwater well body (1). The end of the pipe joint (14) away from the pipeline (15) is located inside the threaded cylinder seat (9) and the elastic sealing ring (10) and is threadedly connected to the threaded cylinder seat (9). The outer side of the pipe joint (14) is fitted with the elastic sealing ring (10), and the inner side of the pipe joint (14) is fitted with the outer side of the support cylinder (11).
2. The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well according to claim 1, characterized in that, An expansion waterstop (3) is fixedly provided on the inner side of the through hole (2) and on the outer side of the threaded cylinder seat (9), and the expansion waterstop (3) is in contact with the threaded cylinder seat (9).
3. The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well according to claim 1, characterized in that, The upper clamp (5) and the lower clamp (6) are fixed on the outer side of the rainwater well body (1) and at the upper and lower ends of the hollow mounting base (4), respectively. The upper and lower ends of the hollow mounting base (4) are bolted to the upper clamp (5) and the lower clamp (6), respectively.
4. The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well according to claim 3, characterized in that, The hollow mounting base (4) is fixedly connected to the material guide seat (7) inside the upper end and outside the upper clamp (5), and the hollow mounting base (4) is connected to the material guide seat (7).
5. The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well according to claim 1, characterized in that, The outer side of the support cylinder (11) away from the elastic sealing ring (10) is fixed with a flange outer ring (12), and multiple high-strength bolts (13) are fixed in a ring array between the inner side of the flange outer ring (12) and the threaded cylinder seat (9).
6. The connection structure between the HDPE rainwater pipe and the reinforced concrete rainwater well according to claim 1, characterized in that, A corrugated compensator (16) is provided between the pipe joint (14) and the pipe line (15).