Pipe reinforcing corrugation

Abstract

The utility model discloses a pipe material reinforced corrugated structure belongs to the technical field of corrugated pipe. Pipe material reinforced corrugated structure, including the corrugated pipe, the inside of corrugated pipe is provided with the inner bag pipe, the outer surface of corrugated pipe is provided with the compression resistant pipe cavity, the inner surface of corrugated pipe is provided with the inner groove, the inner bag pipe includes the inner ring pipe, and the inner ring pipe is pasted with corrugated pipe through the inner groove, wherein, the inner ring pipe is provided with the hollow structure. To solve the situation that the thin wall of the existing corrugated pipe is easy to bend and break at the interface during the use, and the compression resistance of the whole pipe body is poor, the mechanical strength and the bending fatigue strength of the interface are extremely high, even in the dynamic environment of frequent vibration, bending or pulling, the safety and reliability of the connection can be guaranteed, the service life of the pipeline system is greatly prolonged, and the maintenance cost and the failure risk are reduced.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically to a reinforced corrugated structure for pipes. Background Technology

[0002] A bellows is a tubular elastic sensing element made of foldable corrugated sheets connected along the folding and stretching direction. The bellows has a thin wall, high sensitivity, and a measurement range from tens of Pascals to tens of megapascals. Its open end is fixed, while the sealed end is in a free state, and an auxiliary helical spring or leaf spring is used to increase elasticity. During operation, it stretches along the length of the tube under internal pressure, causing the moving end to produce a displacement that is proportional to the pressure.

[0003] The existing corrugated pipes have thin walls, making them prone to bending and breakage at the joints during connection and use, and the overall pressure resistance of the pipe body is also poor. Utility Model Content

[0004] The purpose of this invention is to provide a reinforced corrugated structure for pipes, which has extremely high mechanical strength and bending fatigue strength at the joints. Even in dynamic environments with frequent vibration, bending or tension, it can ensure the safety and reliability of the connection, greatly extend the service life of the pipeline system, reduce maintenance costs and failure risks, and solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe-reinforced corrugated structure, including a corrugated pipe, an inner liner provided inside the corrugated pipe, a pressure-resistant cavity provided on the outer surface of the corrugated pipe, and an inner groove provided on the inner surface of the corrugated pipe. The inner liner includes an inner ring pipe, which is fitted to the corrugated pipe through the inner groove. The inner ring pipe is configured as a hollow structure.

[0006] Preferably, one end of the inner tube is provided with a sealing sleeve, and the other end of the inner tube is provided with a threaded sleeve.

[0007] Preferably, the sealing sleeve opening is configured as a concave structure.

[0008] Preferably, the threaded sleeve extends to the outside of the inner tube.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The composite pipe wall structure formed by the built-in hollow inner ring pipe and the corrugated pipe in this utility model has significantly improved the ability to resist radial extrusion and external impact, making it suitable for harsh working conditions that require burial, obstacle crossing, or heavy load bearing, and greatly expanding the application fields of corrugated pipes.

[0011] 2. This utility model achieves an ideal state of connection and expansion / contraction by transferring the connection function from the corrugated pipe wall to a specially designed sealing sleeve and threaded sleeve. The mechanical strength and bending fatigue resistance at the interface are extremely high. Even in dynamic environments with frequent vibration, bending or pulling, the connection can be guaranteed to be safe and reliable, which greatly extends the service life of the pipeline system and reduces maintenance costs and failure risks. Attached Figure Description

[0012] Figure 1 This is the overall front view of the present invention;

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0014] In the diagram: 1. Corrugated pipe; 2. Inner liner; 3. Sealing sleeve; 4. Threaded sleeve; 101. Pressure-resistant cavity; 102. Inner groove; 201. Inner ring pipe. Detailed Implementation

[0015] 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.

[0016] To address the issues of thin-walled corrugated pipes being prone to bending and breakage at the joints during connection and use, and the overall poor compressive strength of the pipe body; please refer to... Figure 1-2 The present invention provides the following solution:

[0017] The pipe-reinforced corrugated structure includes a corrugated pipe 1, an inner liner 2 inside the corrugated pipe 1, a pressure-resistant cavity 101 on the outer surface of the corrugated pipe 1, and an inner groove 102 on the inner surface of the corrugated pipe 1. The inner liner 2 includes an inner ring pipe 201, which is fitted to the corrugated pipe 1 through the inner groove 102. The inner ring pipe 201 is a hollow structure.

[0018] In this embodiment, the core of the entire structure is the tight connection between the corrugated pipe 1 and the inner tube 2. The corrugated pipe 1 possesses excellent axial elongation and radial flexibility, but its thin-walled structure is prone to collapse under external radial pressure and stress concentration at the interface, leading to breakage. In this structure, the inner ring tube 201, built into the corrugated pipe 1, acts as an internal skeleton. It fits tightly with the corrugated pipe 1 through the inner groove 102, forming a composite pipe wall. When the pipe body is subjected to external pressure, the force first acts on the crests and troughs of the corrugated pipe 1, and then is rapidly transmitted to the inner ring tube 201 through the contact surface of the inner groove 102. Because the inner ring tube 201 is a hollow structure, it is not simply a solid filling, but rather maintains a certain rigidity while also being lightweight and flexible. It effectively transforms concentrated point pressure into annular stress along the pipe wall and distributes it evenly, greatly avoiding local deformation and thus significantly improving the overall resistance to radial compression.

[0019] One end of the inner tube 2 is provided with a sealing sleeve 3, and the other end of the inner tube 2 is provided with a threaded sleeve 4. The sealing sleeve 3 is designed with an inward concave structure, and the threaded sleeve 4 extends to the outside of the inner tube 2.

[0020] In this embodiment, the interface is the weakest point of the bellows. This invention features a targeted reinforcement design for the interface. The sealing sleeve 3 at one end has a concave structure, while the threaded sleeve 4 at the other end extends to the outside of the inner liner 2. This design ensures that when the two pipes are connected, the weak bellows wall no longer directly bears the force and provides the seal; instead, the stronger sleeve structure of the inner liner 2 serves as the main connection. The threaded sleeve 4 provides a robust mechanical connection, directly transmitting the connection stress to the inner liner 2; while the sealing sleeve 3 forms a tight insertion fit with the threaded sleeve 4 of the adjacent pipe, achieving multiple seals. The force transmission path is shifted from the weak bellows interface to the robust inner liner interface, fundamentally eliminating the risk of breakage at the interface due to bending or twisting.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced corrugated structure for pipes, characterized in that, The device includes a corrugated pipe (1), an inner liner (2) is provided inside the corrugated pipe (1), a pressure-resistant cavity (101) is provided on the outer surface of the corrugated pipe (1), and an inner groove (102) is provided on the inner surface of the corrugated pipe (1). The inner liner (2) includes an inner ring pipe (201), which is attached to the corrugated pipe (1) through the inner groove (102). The inner ring pipe (201) is configured as a hollow structure.

2. The pipe-reinforced corrugated structure according to claim 1, characterized in that: One end of the inner tube (2) is provided with a sealing sleeve (3), and the other end of the inner tube (2) is provided with a threaded sleeve (4).

3. The pipe-reinforced corrugated structure according to claim 2, characterized in that: The sealing sleeve (3) is configured as a concave structure.

4. The pipe-reinforced corrugated structure according to claim 2, characterized in that: The threaded sleeve (4) extends to the outside of the inner tube (2).

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