Assembly type seepage and drainage blind pipe high-strength pipe joint

Abstract

The application discloses a high-strength pipeline joint of an assembled water seepage and drainage blind pipe, and relates to the technical field of pipeline connecting pieces. The pipeline joint comprises a flexible expansion section arranged in the middle and rigid connecting sections arranged on both sides of the flexible expansion section. The flexible expansion section is communicated with the rigid connecting sections on both sides. Connecting flanges for connecting pipelines are arranged on the rigid connecting sections. A plurality of tension bolt holes are arranged on the connecting flanges. The pipeline joint is composed of the flexible expansion section and the rigid connecting sections. The pipeline joint can adapt to uneven deformation such as settlement, displacement and torsion of a slag body and will not be broken, so that the continuous and effective operation of a drainage system is guaranteed, and engineering safety is improved.

Description

Technical Field

[0001] This application relates to the technical field of pipe fittings, and in particular to a high-strength pipe joint for prefabricated drainage blind pipes. Background Technology

[0002] In the fields of railway engineering and civil engineering technology, drainage systems are a crucial component for ensuring the safety and stability of projects. A good drainage system can promptly remove accumulated water, preventing problems such as soil softening and foundation settlement caused by waterlogging. This ensures the normal use of railway tracks, buildings, and other infrastructure, extends their service life, reduces maintenance costs, and plays a vital role in the safe and stable operation of the entire project.

[0003] In the past, rigid pipe joints were commonly used to solve drainage system pipe connection problems. Rigid joints typically use welding, threaded connections, or other methods to tightly fix the pipes together. This method provides high connection strength and ensures the stability of the pipes under normal conditions.

[0004] However, this type of rigid pipe joint cannot accommodate the massive uneven settlement that occurs during the compaction of the waste material. When the waste material undergoes uneven deformation such as settlement, displacement, or torsion, the rigid joint cannot adapt accordingly, which can easily lead to pipe breakage or misalignment. Once the pipe breaks or misaligns, the entire drainage system will be paralyzed, unable to promptly drain the "slippage water film" that could cause landslides, thus posing a significant safety risk to the project. Utility Model Content

[0005] To address the problems existing in the prior art, this application provides a prefabricated high-strength pipe joint for blind drainage pipes.

[0006] This application provides a prefabricated high-strength pipe joint for blind drainage pipes, which adopts the following technical solution: A prefabricated high-strength pipe joint for drainage blind pipe includes a flexible expansion section in the middle and rigid connecting sections on both sides of the flexible expansion section. The flexible expansion section is connected to the rigid connecting sections on both sides. Both rigid connecting sections are provided with connecting flanges for connecting pipes, and the connecting flanges are provided with multiple tie bolt holes.

[0007] Optionally, the flexible telescopic segment is sleeved on the outside of the rigid connecting segment, and an adhesive is filled between the flexible telescopic segment and the rigid connecting segment.

[0008] Optionally, a plurality of reinforcing screws are also connected between the flexible telescopic section and the rigid connecting section.

[0009] Optionally, the flexible telescopic section includes an inner flexible layer, an outer flexible layer, and a flexible space frame layer disposed between the inner flexible layer and the outer flexible layer, wherein the inner flexible layer, the outer flexible layer, and the flexible space frame layer are connected and fixed together by an adhesive.

[0010] Optionally, multiple reinforcing rings are provided between the inner flexible layer and the flexible grid layer.

[0011] Optionally, the flexible mesh layer is woven from flexible steel wires.

[0012] Optionally, the flexible mesh layer is made of nylon rope.

[0013] Optionally, the rigid connection section is made of PVC material.

[0014] Optionally, the bottom of the connecting flange on one of the rigid connecting segments is provided with a splicing groove, which is adapted to the connecting flange on the other rigid connecting segment.

[0015] Optionally, it also includes a compression seal ring, wherein the end face of the connecting flange connected to the pipe is provided with an annular sealing groove, the annular sealing groove being adapted to the compression seal ring and used for the compression seal ring to be inserted.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This application combines a pipe joint with a flexible expansion section and a rigid connection section. The flexible expansion section enables the pipe network to have three-dimensional deformation capability, which can adapt to uneven deformation such as sedimentation, displacement, and torsion of the waste material without breaking. The rigid connection section is rigidly connected to the pipe through a connecting flange, which ensures that the connection strength can transmit axial force, thereby ensuring the continuous and effective operation of the drainage system and improving the safety of the project.

[0017] 2. This application connects and fixes the flexible expansion segment, consisting of an inner flexible layer, an outer flexible layer, and a flexible grid layer, with an adhesive, thereby enhancing the structural strength and resistance to damage of the flexible expansion segment while providing deformation capacity.

[0018] 3. By setting multiple reinforcing rings between the inner flexible layer and the flexible space frame layer, this application can further enhance the structural strength of the flexible expansion segment, so that the flexible expansion segment can provide deformation capacity while improving the load-bearing capacity of the flexible expansion segment, avoiding damage due to excessive deformation or blockage inside the flexible expansion segment.

[0019] 4. This application provides a splicing groove on the connecting flange of one of the rigid connection sections, which is adapted to the connecting flange on another rigid connection section. This allows for the splicing and lengthening of pipe joints, thereby improving installation adaptability and ensuring the structural strength of the connection between the spliced ​​pipe joints. Attached Figure Description

[0020] Figure 1 This is an exploded view of the structure of Embodiment 1 of this application; Figure 2 This is a cross-sectional view of the overall structure of Embodiment 1 of this application; Figure 3 yes Figure 2 A magnified view of section A.

[0021] Explanation of reference numerals in the attached drawings: 1. Flexible expansion section; 11. Inner flexible layer; 12. Outer flexible layer; 13. Flexible space frame layer; 14. Reinforcing ring; 2. Rigid connection section; 3. Connecting flange; 31. Tie bolt hole; 32. Splicing groove; 33. Annular sealing groove; 4. Reinforcing screw; 5. Extrusion sealing ring. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-3 The technical solutions of this application are described in further detail below. The described embodiments are merely possible technical implementations of this utility model, but are not limited thereto. Those skilled in the art can certainly combine the embodiments of this utility model to obtain other embodiments without creative effort, which are also within the protection scope of this utility model.

[0023] This application mainly adopts a joint scheme that combines flexible expansion sections and rigid connection sections, which achieves the effect of enabling drainage pipes to adapt to uneven deformation while ensuring connection strength and sealing. The following is a further detailed description of this application.

[0024] Example 1 This application discloses a prefabricated high-strength pipe joint for blind drainage pipes. (Refer to...) Figure 1 , 2 The system includes a flexible expansion joint 1 located in the middle and rigid connecting sections 2 located on both sides of the flexible expansion joint 1. The flexible expansion joint 1 is connected to the rigid connecting sections 2 on both sides. Each rigid connecting section 2 is equipped with a connecting flange 3 for connecting pipes, and the connecting flange 3 is equipped with multiple tie bolt holes 31. This structural design allows the joint to have both the deformation capacity provided by the flexible expansion joint 1 and the connection strength guaranteed by the rigid connecting sections 2. This achieves the effect of preventing the pipe network from breaking when adapting to uneven deformation such as sedimentation, displacement, and torsion of the waste material, and can also transmit axial force, ensuring the continuous and effective operation of the drainage system.

[0025] Reference Figure 3Specifically, the flexible expansion segment 1 includes an inner flexible layer 11, an outer flexible layer 12, and a flexible space frame layer 13 disposed between the inner flexible layer 11 and the outer flexible layer 12. The inner flexible layer 11, the outer flexible layer 12, and the flexible space frame layer 13 are tightly connected by adhesive to form a whole. Both the inner flexible layer 11 and the outer flexible layer 12 are made of rubber material, which has good flexibility and corrosion resistance and can adapt to certain deformations. The flexible space frame layer 13 is woven from flexible steel wires, which have a certain strength and flexibility, and can enhance the structural strength while providing deformation capacity.

[0026] The combination logic of the various parts of the flexible expansion segment 1 is as follows: the inner flexible layer 11 provides basic deformation capacity, the outer flexible layer 12 protects the internal structure, and the flexible space frame layer 13 enhances the overall structural strength, toughness, and resistance to damage. Simultaneously, this combination enables the flexible expansion segment 1 to withstand various deformations such as tension, compression, radial displacement, and bending. Tension can reach 12-15 mm, compression 10-15 mm, radial displacement 8-15 mm, and bending angle 5-7°.

[0027] Reference Figure 3 Furthermore, multiple reinforcing rings 14 are provided between the inner flexible layer 11 and the flexible space frame layer 13. The reinforcing rings 14 can be made of metal materials, such as stainless steel, which has high strength and corrosion resistance. The function of the reinforcing rings 14 is to further enhance the structural strength of the flexible expansion segment 1, enabling it to provide deformation capacity while improving its load-bearing capacity, preventing damage due to excessive deformation or blockage within the flexible expansion segment 1. The reinforcing rings 14 are evenly distributed along the circumference of the inner flexible layer 11, which can evenly distribute pressure and ensure the stable performance of the flexible expansion segment 1 in all directions.

[0028] The rigid connection section 2 is made of PVC material. PVC material has advantages such as light weight, corrosion resistance, and low cost, making it suitable for manufacturing pipe connection components. The function of the rigid connection section 2 is to provide a rigid connection to the pipe, ensuring the connection strength can transmit axial force. One end of the rigid connection section 2 is connected to the flexible expansion section 1, and the other end is connected to the pipe through the connecting flange 3. The connecting flange 3 can be manufactured using a casting process, with a smooth surface. The tie bolt holes 31 on the connecting flange 3 are evenly distributed to ensure a tight connection between the joint and the pipe using tie bolts, guaranteeing sealing and stability during the connection with the pipe.

[0029] Reference Figure 2The flexible expansion segment 1 is fitted onto the outside of the rigid connecting segment 2, and an adhesive fills the space between them. The adhesive can be epoxy resin, which has good bonding properties and water resistance, ensuring a firm connection between the flexible expansion segment 1 and the rigid connecting segment 2. Simultaneously, multiple reinforcing screws 4 connect the flexible expansion segment 1 and the rigid connecting segment 2. These reinforcing screws 4 can be made of stainless steel and their function is to further enhance the connection strength between the flexible expansion segment 1 and the rigid connecting segment 2, preventing loosening or separation during use. The reinforcing screws 4 are evenly distributed along the circumference of the rigid connecting segment 2, and tightening them ensures a tight bond between the flexible expansion segment 1 and the rigid connecting segment 2.

[0030] Reference Figure 2 One of the rigid connection sections 2 has a connecting flange 3 with a splicing groove 32 at its bottom, which is adapted to the connecting flange 3 on another rigid connection section 2. When it is necessary to splice and lengthen the pipe joint, the splicing groove 32 of one connecting flange 3 can be spliced ​​with the other connecting flange 3, and then they can be fixed together with tie bolts. This improves the adaptability of installation and ensures the structural strength of the connection between the spliced ​​pipe joints.

[0031] Reference Figure 1 , 2 This embodiment also includes a compression-type sealing ring 5. An annular sealing groove 33 is provided on the end face of the connecting flange 3 where it connects to the pipe. The annular sealing groove 33 is adapted to the compression-type sealing ring 5 and is used for the compression-type sealing ring 5 to be snapped into place. The compression-type sealing ring 5 can be made of rubber material, possessing good elasticity and sealing performance. When the connecting flange 3 is tightened to the pipe using tie bolts, the compression-type sealing ring 5 is squeezed into the annular sealing groove 33, thereby achieving an absolute seal at the connection and preventing leakage.

[0032] The implementation principle of the prefabricated high-strength pipe joint for blind drainage pipes in this embodiment is as follows: The prefabricated high-strength pipe joint for blind drainage pipes in this embodiment consists of a flexible expansion section 1 and a rigid connection section 2. The flexible expansion section 1 enables the pipe network to have three-dimensional deformation capability, which can adapt to uneven deformation such as sedimentation, displacement, and torsion of waste material without breaking. The rigid connection section 2 is rigidly connected to the pipe through a connecting flange 3, ensuring that the connection strength can transmit axial force, thereby ensuring the continuous and effective operation of the drainage system and improving the safety of the project. At the same time, the multi-layer structure of the flexible expansion section 1 and the setting of the reinforcing ring 14 enhance its structural strength and resistance to damage, and the design of the annular sealing groove 33 and the extrusion sealing ring 5 ensures the sealing performance of the connection.

[0033] Example 2 The difference from Example 1 is that the flexible mesh layer 13 is made of nylon rope, which is lightweight, flexible and relatively inexpensive.

[0034] Example 3 The difference from Embodiment 1 lies in the optimized connection method between the flexible telescopic segment 1 and the rigid connecting segment 2. In this embodiment, in addition to the adhesive and reinforcing screws 4 used to connect the flexible telescopic segment 1 and the rigid connecting segment 2, an elastic clamp is added. The elastic clamp can be made of metal, such as spring steel, which has good elasticity and strength. The elastic clamp surrounds the connection between the flexible telescopic segment 1 and the rigid connecting segment 2, further strengthening the connection through its elastic force. This arrangement ensures connection strength while also buffering the impact force on the rigid connecting segment 2 when the flexible telescopic segment 1 deforms to a certain extent, improving the stability and reliability of the connection.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated high-strength pipe joint for blind drainage pipes, characterized in that: It includes a flexible expansion section (1) in the middle and rigid connecting sections (2) on both sides of the flexible expansion section (1). The flexible expansion section (1) is connected to the rigid connecting sections (2) on both sides. Both rigid connecting sections (2) are provided with connecting flanges (3) for connecting pipes. The connecting flanges (3) are provided with multiple tie bolt holes (31).

2. The prefabricated high-strength pipe joint for blind drainage pipes according to claim 1, characterized in that: The flexible telescopic section (1) is sleeved on the outside of the rigid connecting section (2), and an adhesive is filled between the flexible telescopic section (1) and the rigid connecting section (2).

3. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 2, characterized in that: Multiple reinforcing screws (4) are also connected between the flexible telescopic section (1) and the rigid connecting section (2).

4. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 1, characterized in that: The flexible telescopic section (1) includes an inner flexible layer (11), an outer flexible layer (12), and a flexible mesh layer (13) disposed between the inner flexible layer (11) and the outer flexible layer (12). The inner flexible layer (11), the outer flexible layer (12), and the flexible mesh layer (13) are connected and fixed together by adhesive.

5. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 4, characterized in that: Multiple reinforcing rings (14) are provided between the inner flexible layer (11) and the flexible grid layer (13).

6. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 4, characterized in that: The flexible mesh layer (13) is woven from flexible steel wires.

7. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 4, characterized in that: The flexible mesh layer (13) is made of nylon rope.

8. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 1, characterized in that: The rigid connecting section (2) is made of PVC material.

9. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 1, characterized in that: The bottom of the connecting flange (3) on one of the rigid connecting sections (2) is provided with a splicing groove (32), which is adapted to the connecting flange (3) on the other rigid connecting section (2).

10. A prefabricated high-strength pipe joint for blind drainage pipes according to claim 1, characterized in that: It also includes a compression sealing ring (5), and the end face of the connecting flange (3) connected to the pipeline is provided with an annular sealing groove (33), which is adapted to the compression sealing ring (5) and is used for the compression sealing ring (5) to be inserted.

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