Hollow double-wall winding reinforced pipeline

Abstract

The utility model provides a hollow double-wall winding reinforced pipeline. The hollow double-wall winding reinforced pipeline comprises an inner pipe body, the outer pipe body is arranged outside the inner pipe body; the corrugated pipe comprises an inner pipe body, an outer pipe body and corrugations, the corrugations are continuously and spirally arranged between the outer wall of the inner pipe body and the inner wall of the outer pipe body in a surrounding mode and connected into an integrated structure in a hot melting mode, the outer pipe body physically protects the corrugations and can isolate certain temperature, and the problem that the corrugations are damaged and lose the anti-pressure capacity is solved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a hollow double-walled wound reinforced pipeline. Background Technology

[0002] A pipe is a tubular device used for transportation. It provides a relatively closed channel for transporting fluid from one place to another. The pipe wall is the main part of the pipe, which determines the pipe's basic properties such as strength and corrosion resistance. Single-walled pipes have limitations in some properties, such as strength, toughness, and adaptability to different environments.

[0003] Chinese Patent CN201610254495.X discloses a utility model relating to a double-wall corrugated pipe, comprising a pipe body composed of an outer corrugated pipe and an inner pipe. The key feature is the provision of a protective plate between the outer corrugated pipe and the inner pipe, a reinforcing ring at the crest of the outer corrugated pipe, and sleeves at both the insertion and socket ends of the pipe body. A groove is formed on the outer wall of the sleeve, and a clamp is installed within the groove to securely connect the double-wall corrugated pipe. This utility model effectively improves its wear resistance and protective performance, while also allowing for quick and convenient assembly.

[0004] However, this technical solution has the following shortcomings: When the pipeline is buried and working underground, due to the complex underground soil environment and the presence of solid hard objects, these hard objects can easily damage the corrugations when the pipeline is driven by vehicles or vibrates due to earthquakes. Furthermore, it is also prone to deformation and damage under extreme environmental temperature conditions, thus losing its compressive strength. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a hollow double-walled spiral reinforced pipe. This pipe has an outer pipe body installed outside the inner pipe body, and corrugations are provided between the inner and outer pipe bodies. The outer pipe body provides physical protection for the corrugations, thus solving the problem of loss of pressure resistance due to corrugation damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hollow double-walled wound reinforced pipe, comprising an inner pipe body; an outer pipe body disposed outside the inner pipe body; and corrugations, wherein the corrugations are continuously spirally wound between the outer wall of the inner pipe body and the inner wall of the outer pipe body and are thermally fused into an integral structure.

[0007] As an improvement, the cross-section of the corrugations is trapezoidal or triangular, with the wide portion of the corrugations fitting the outer tube and the narrow portion fitting the inner tube.

[0008] As an improvement, the corrugated hollow structure has hollow grooves inside that resemble its shape.

[0009] As an improvement, the inner tube, outer tube, and corrugations are arranged coaxially.

[0010] As an improvement, the two ends of the inner tube are respectively connected to the inner wall of the outer tube to form an integral structure to form a joint.

[0011] As an improvement, one of the joints is a socket and the other is a spigot. The diameter of the socket is larger than the diameter of the spigot, and the spigot of one set of pipes is tightly fitted into the socket of the other set of pipes.

[0012] As an improvement, the inner diameter of the socket is larger than the inner diameter of the portion near the end face of the inner tube.

[0013] As an improvement, the corrugations are tightly spirally wound to fill the space between the inner tube and the outer tube, and their two ends are respectively integrated with the inner tube and the outer tube to form a single structure.

[0014] As an improvement, a uniformly spaced cavity is formed between the inner tube, the outer tube, and the corrugations.

[0015] As an improvement, the lateral distance of the cavity is between 2mm and 3mm.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) By setting an outer tube body outside the corrugated pipe, this utility model can effectively protect the corrugated pipe, prevent the corrugated pipe from being scratched by hard objects in the underground environment, avoid the corrugated pipe from losing its pressure resistance and shock absorption capabilities, and can also evenly distribute the locally concentrated pressure to each corrugated pipe, thereby protecting the service life of the inner tube body. At the same time, the double-wall structure of this technical solution can be applied to special working conditions compared with traditional corrugated pipes.

[0018] (2) By setting a corrugated cross section with a trapezoidal or triangular structure, and the wide part is in close contact with the outer pipe body, the inverted trapezoidal shape with a wider top and narrower bottom allows the pressure to be better dispersed during transmission, reducing the pressure borne by a single point in the inner pipe body and ensuring the safe operation of the pipeline system.

[0019] (3) By setting a set of outer pipe sockets that can be fitted into the socket of another set of outer pipes, this utility model facilitates quick positioning, installation and connection when arranging pipeline systems, improves the work efficiency of operators, shortens the construction period and improves construction efficiency.

[0020] In summary, this utility model has the advantages of high strength, high rigidity, impact resistance, earthquake resistance, low overall cost, and convenient construction. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the external structure of this utility model;

[0024] Figure 4 This is a front view of the present utility model;

[0025] Figure 5 This is a schematic diagram of two sets of plug-in connections for this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of Example 2.

[0027] Figure labels: 1. Inner tube; 11. Cavity; 2. Outer tube; 21. Socket; 22. Spiral; 3. Corrugated; 31. Hollow groove. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Example 1

[0031] like Figures 1 to 4As shown, this embodiment provides a hollow double-walled spiral reinforced pipe, including an inner pipe body 1; an outer pipe body 2, the outer pipe body 2 being disposed outside the inner pipe body 1; and corrugations 3, the corrugations 3 being continuously spirally wound between the outer wall of the inner pipe body 1 and the inner wall of the outer pipe body 2 and thermally fused into an integral structure.

[0032] The outer tube 2 can effectively protect the corrugations 3, preventing them from being scratched or damaged by hard objects and losing their pressure resistance and shock absorption capabilities. It can also evenly distribute the locally concentrated pressure to each corrugation 3, thereby protecting the service life of the inner tube 1. It also has a good thermal insulation effect, and the pipeline can be used in relatively extreme environments.

[0033] like Figure 2 As shown, the cross-section of the corrugation 3 is trapezoidal or triangular, the wide part of the corrugation 3 is attached to the outer tube 2, and its narrow part is attached to the inner tube 1.

[0034] It is worth mentioning that the trapezoidal and triangular structures have good pressure resistance and can protect the inner tube 1 from damage when subjected to external pressure.

[0035] In addition, from an overall perspective, the multiple sets of corrugated sidewalls form a W-shape, which can evenly distribute pressure and give the pipe stronger resistance to deformation.

[0036] like Figure 2 As shown, the corrugated 3 is hollow, and a hollow groove 31 similar in shape is opened inside it.

[0037] Specifically, this design allows the corrugations 3 to form a shape that is wider at the top and narrower at the bottom, which enables the pressure to be better distributed during transmission, making it more resistant to greater pressure and less prone to deformation, thus further improving the protection of the inner tube 1.

[0038] like Figure 1 As shown, the inner tube 1, the outer tube 2, and the corrugated 3 are coaxially arranged.

[0039] The coaxial design allows the pressure to be evenly distributed across the entire pipe wall structure when subjected to external pressure, effectively improving the pipe's resistance to external pressure, preventing it from being crushed or damaged, and ensuring smooth flow of fluid inside the pipe.

[0040] like Figure 1 As shown, the two ends of the inner tube 1 are respectively connected to the inner wall of the outer tube 2 to form a joint.

[0041] Understandably, the inner and outer layers are not separated, and it has advantages such as crack resistance and wear resistance. Compared with traditional pipes with metal skeletons, it is also easier to cut and process.

[0042] like Figure 5As shown, one of the connectors is a socket 21 and the other is a spigot 22. The diameter of the socket 21 is larger than the diameter of the spigot 22, and the spigot 22 of one set of pipes is tightly fitted into the socket 21 of the other set of pipes.

[0043] It should be noted that both ends of the two sets of outer pipe bodies 2 can be fitted with quick positioning and installation connections for easy piping system layout, improving the work efficiency of operators and shortening the construction period. This increases construction efficiency.

[0044] like Figure 3 As shown, the inner diameter of the socket 21 is larger than the inner diameter of the portion near the end face of the inner tube 1.

[0045] When two sets of pipes are connected, as the inner diameter decreases, the spigot 22 will also fit tightly into the socket 21 of the other set of pipes, which improves the sealing of the pipe connection and ensures that no leakage occurs when the fluid flows through, thus better protecting the external environment.

[0046] like Figure 1 As shown, the corrugations 3 are tightly spirally wound to fill the space between the inner tube 1 and the outer tube 2, and their two ends are respectively integrated with the inner tube 1 and the outer tube 2 to form a single structure.

[0047] From a mechanical perspective, the tightly arranged structure of two adjacent corrugations 3 can evenly distribute external pressure across the entire pipe wall. When external pressure acts on the pipe, the corrugations 3 support each other, forming an integrated load-bearing structure that can effectively resist external pressure and improve the pipe's load-bearing strength and ring stiffness performance.

[0048] Example 2

[0049] like Figure 6 As shown, the components that are the same as or corresponding to those in Embodiment 1 are referred to by the same reference numerals as those in Embodiment 1. A hollow double-walled wound reinforced pipe is provided, wherein the inner tube 1, the outer tube 2 and the corrugations 3 form uniformly spaced cavities 11.

[0050] Specifically, the cavity 11 can better insulate temperature, enabling the inner tube 1 to maintain a relatively stable temperature environment, reducing deformation caused by excessive temperature differences, extending service life, and adapting to more usage environments.

[0051] like Figure 6 As shown, the lateral distance of the cavity 11 is between 2mm and 3mm.

[0052] To ensure that the spirally arranged corrugations 3 are easy to process and still effectively resist pressure, the corrugations 3 are arranged with a smaller spacing, which means that there are more corrugations 3, which can more effectively disperse external pressure. When bearing external forces such as soil pressure and vehicle loads, they have higher ring stiffness and compressive strength, reducing the risk of deformation and rupture of the inner tube 1.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. A hollow double-walled wound reinforced pipe, characterized in that, include: Inner tube body (1); An outer tube (2), wherein the outer tube (2) is disposed outside the inner tube (1); and The corrugations (3) are continuously spirally arranged between the outer wall of the inner tube (1) and the inner wall of the outer tube (2) and are heat-fused into an integral structure.

2. The hollow double-walled wound reinforced pipe according to claim 1, characterized in that, The cross section of the corrugation (3) is trapezoidal or triangular, with the wide part of the corrugation (3) fitting the outer tube (2) and the narrow part fitting the inner tube (1).

3. A hollow double-walled wound reinforced pipe according to claim 2, characterized in that, The corrugated (3) is hollow, and a hollow groove (31) similar in shape is opened inside it.

4. A hollow double-walled wound reinforced pipe according to claim 2, characterized in that, The inner tube (1), outer tube (2), and corrugated (3) are coaxially arranged.

5. A hollow double-walled wound reinforced pipe according to any one of claims 1-4, characterized in that, The two ends of the inner tube (1) are respectively connected to the inner wall of the outer tube (2) to form a joint.

6. A hollow double-walled wound reinforced pipe according to claim 5, characterized in that, One of the joints is a socket (21) and the other is a spigot (22). The diameter of the socket (21) is larger than the diameter of the spigot (22), and the spigot (22) of one set of pipes is tightly fitted into the socket (21) of the other set of pipes.

7. A hollow double-walled wound reinforced pipe according to claim 6, characterized in that, The inner diameter of the socket (21) is larger than the inner diameter of the portion of the inner tube (1) that is closer to the end face of the inner tube body (1).

8. A hollow double-walled wound reinforced pipe according to claim 5, characterized in that, The corrugations (3) are tightly spirally wound to fill the space between the inner tube (1) and the outer tube (2), and their two ends are respectively integrated with the inner tube (1) and the outer tube (2) into a single structure.

9. A hollow double-walled wound reinforced pipe according to claim 5, characterized in that, A uniformly spaced cavity (11) is formed between the inner tube (1), the outer tube (2), and the corrugations (3).

10. A hollow double-walled wound reinforced pipe according to claim 9, characterized in that, The lateral distance of the cavity (11) is between 2 mm and 3 mm.

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