Anti-deflection spiral reinforced pipe

Abstract

The utility model discloses an anti-deflection spiral reinforced pipe, belongs to the technical field of pipeline structures, and is used for providing a spiral reinforced pipe with better anti-deflection performance regardless of forward rotation or reverse rotation, the spiral reinforced pipe comprises a pipe body, the inner wall of the pipe body is provided with an inner spiral line groove, and the outer wall of the pipe body is provided with an outer spiral line rib. The spiral direction of the inner spiral line groove is opposite to that of the outer spiral line rib, a configuration channel penetrating through the two end faces is formed in the side wall of the pipe body, and a steel plate is embedded in the configuration channel. The inner spiral line groove is formed in the inner wall of the pipe body, and the outer spiral line groove with the opposite rotation directions is formed in the outer wall of the pipe body, so that threads can be compressed no matter the pipe body is subjected to forward or reverse torsion loads, and strong torsion resistance is provided; the steel plate structure is embedded in the pipe wall to serve as a framework, so that the distortion resistance of the spiral pipe is improved, the bending resistance of the spiral pipe is improved, and the bending resistance of the spiral reinforced pipe is obviously improved.

Description

Technical Field

[0001] This application relates to the technical field of pipeline structures, and particularly to a helically reinforced pipe with anti-flexure performance. Background Art

[0002] Compared with a pipeline with smooth inner and outer walls, a pipeline with threads has better shape maintenance ability and can also improve the anti-bending and anti-twisting abilities of the pipe body to a certain extent. However, for the existing helically reinforced pipes, when subjected to torsional loads, if the torsion makes the pitch smaller, the anti-twisting performance will be relatively strong; if the torsion makes the pitch larger, the anti-twisting performance will be relatively poor, showing obvious directional differences. Summary of the Invention

[0003] The purpose of this application is to provide a helically reinforced pipe with better anti-flexure performance regardless of forward or reverse rotation.

[0004] To achieve the above purpose, this application provides a helically reinforced pipe with anti-flexure performance: including a pipe body, the inner wall of the pipe body has an inner helical groove, the outer wall of the pipe body has an outer helical rib, the spiral directions of the inner helical groove and the outer helical rib are opposite, a configuration channel penetrating both end faces is provided on the side wall of the pipe body, and a steel plate is embedded in the configuration channel, mainly used to improve the anti-bending ability of the pipeline.

[0005] As a preference, the outer helical rib forms an outer helical groove on the outer side surface of the pipe body, and the spiral directions of the inner helical groove and the outer helical groove are opposite, so that whether the pipeline is subjected to positive or negative loads, there are threads being compressed, thereby providing a reaction force against torsion.

[0006] As a preference, the outer helical rib is wound around the outside of the pipe body by a hot-melting method, and the outer helical rib still maintains an integral structure with the pipe body.

[0007] As a preference, the pitch of the inner helical groove is equal to the pitch of the outer helical groove, which can make the pipe wall form a grid-like thickness distribution with a standard and regular shape.

[0008] As a preference, there are several configuration channels, and several configuration channels are arranged equidistantly around the axis of the pipe body. The corresponding steel plates are also arranged equidistantly around the axis of the pipe body, forming a rigid framework of the pipe body.

[0009] As a preference, the length of the steel plate is greater than or equal to the path length of the configuration channel; the pipe body is made of a polymer material, so that the pipe body has better wear resistance.

[0010] As a preference, the inner helical groove is left-handed, and the outer helical rib and the outer helical groove are right-handed, ensuring that the helical lines can be staggered in different planes.

[0011] As another preference, the inner spiral groove is right-handed, and the outer spiral rib and the outer spiral groove are left-handed, which also ensures that the spiral lines can be staggered on different planes.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows:

[0013] (1) By forming an inner spiral groove on the inner wall of the pipe body and an outer spiral groove with the opposite helix direction on the outer wall, no matter the pipe body is subjected to a positive or negative torsional load, some threads will be compressed, thereby providing a strong torsional resistance.

[0014] (2) By embedding a steel plate structure as a skeleton in the pipe wall, not only the anti-twisting performance of the spiral pipe is improved, but also the anti-bending performance of the spiral pipe is improved, so that the anti-flexure performance of the spiral reinforced pipe is significantly improved. Description of the Drawings

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the anti-flexure spiral reinforced pipe.

[0016] Figure 2 It is a three-dimensional sectional view of the overall structure of the anti-flexure spiral reinforced pipe.

[0017] Figure 3 It is for the anti-flexure spiral reinforced pipe Figure 2 partial enlarged view at A.

[0018] Figure 4 It is a sectional view of the three-dimensional structure of the pipe body of the anti-flexure spiral reinforced pipe.

[0019] Figure 5 It is a sectional view of the plane of the pipe body of the anti-flexure spiral reinforced pipe.

[0020] In the figure: 1, steel plate; 2, pipe body; 201, configuration channel; 202, inner spiral groove; 203, outer spiral rib; 204, outer spiral groove. Detailed Embodiments

[0021] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0022] In the description of the present application, it should be noted that for the orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0024] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0025] As Figures 1-5 shown in the anti-flexure spiral reinforced pipe, it includes a pipe body 2 made of a polymer material, usually plastic or rubber. The inner wall of the pipe body 2 has an inner spiral groove 202, which is integrally formed with the pipe body 2. The outer wall of the pipe body 2 has an outer spiral rib 203, and the outer spiral rib 203 is wound around the outside of the pipe body 2 by means of hot melting. Although the outer spiral rib 203 is made of the same material as the pipe body 2 and is integral, it is not formed in one step. It should be noted that the spiral direction of the inner spiral groove 202 is opposite to that of the outer spiral rib 203. In fact, the wall thickness of the pipe body 2 is not uniform, but is distributed in a grid shape in terms of thickness.

[0026] The protruding structure of the outer spiral rib 203 forms an outer spiral groove 204 on the outer side of the pipe body 2. Therefore, the spiral direction of the inner spiral groove 202 is also opposite to that of the outer spiral groove 204. Usually, the pitch of the inner spiral groove 202 is kept equal to the pitch of the outer spiral groove 204. When the inner spiral groove 202 is left-handed, the outer spiral rib 203 and the outer spiral groove 204 can only be right-handed; when the inner spiral groove 202 is right-handed, the outer spiral rib 203 and the outer spiral groove 204 can only be left-handed. In this way, a regularly shaped thickness distribution grid will be formed on the pipe wall.

[0027] The side wall of the tube body 2 is provided with a configuration channel 201 that passes through the two end faces, and a steel plate 1 with good toughness is embedded in the configuration channel 201. The configuration channel 201 is not opened out, but is automatically formed when the tube body 2 material is wrapped on the steel plate 1 skeleton. There are several configuration channels 201, and these configuration channels 201 are not necessarily in parallel. The shape of the configuration channel 201 is not necessarily straight, but is determined by the direction of the steel plate 1. Therefore, when the steel plate 1 is a spiral line, the configuration channel 201 will also become a spiral line. However, no matter what the direction of the steel plate 1 is, these steel plates 1 will be equidistantly arranged around the axis of the tube body 2, and the corresponding configuration channels 201 will also be equidistantly arranged around the axis of the tube body 2. The length of the steel plate 1 is greater than or equal to the path length of the configuration channel 201, which is convenient for fixing the two ends of the steel plate 1 when the tube body 2 is formed.

[0028] Working principle: The inner spiral groove 202 and the outer spiral rib 203 form a corrugated groove structure with opposite rotation directions on the inner and outer walls of the tube body 2, so that the spiral reinforced tube can generate corresponding resistance regardless of positive or negative torsion, effectively weakening the torsional deformation, and is not easily crushed or twisted; in addition, the steel plate 1 structure with good toughness embedded in the tube wall makes the spiral reinforced tube have higher bending resistance, and the surrounding steel plate 1 structure can further increase the anti-twisting performance of the spiral reinforced tube.

[0029] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A flexure-resistant spiral reinforced pipe, characterized in that: The invention comprises a tube body (2), the inner wall of the tube body (2) having an inner spiral groove (202), the outer wall of the tube body (2) having an outer spiral rib (203), the inner spiral groove (202) and the outer spiral rib (203) having opposite rotation directions, the side wall of the tube body (2) having a configuration channel (201) passing through both end surfaces, and a steel plate (1) embedded in the configuration channel (201).

2. The flexure-resistant spiral reinforced pipe according to claim 1, characterized in that: The outer spiral rib (203) is formed with an outer spiral groove (204) on the outer side surface of the tube body (2), and the inner spiral groove (202) and the outer spiral groove (204) have opposite rotation directions.

3. The flexure-resistant spiral reinforced pipe according to claim 2, characterized in that: The outer spiral rib (203) is wound around the outside of the tube body (2) by hot melting.

4. The flexure-resistant spiral reinforced pipe according to claim 3, characterized in that: The pitch of the inner helical groove (202) is equal to the pitch of the outer helical groove (204).

5. The flexure-resistant spiral reinforced pipe according to any one of claims 2 to 4, characterized in that: The inner spiral groove (202) is left-handed, and the outer spiral rib (203) and the outer spiral groove (204) are right-handed.

6. The flexure-resistant spiral reinforced pipe according to any one of claims 2 to 4, characterized in that: The inner spiral groove (202) is right-handed, and the outer spiral rib (203) and the outer spiral groove (204) are left-handed.

7. The flexure-resistant spiral reinforced pipe according to claim 1, characterized in that: There are a plurality of configuration channels (201), and the plurality of configuration channels (201) are arranged equidistantly around the axis of the tube body (2), and the corresponding steel plates (1) are also arranged equidistantly around the axis of the tube body (2).

8. The flexure-resistant spiral reinforced pipe according to claim 7, characterized in that: The length of the steel plate (1) is greater than or equal to the path length of the configuration channel (201); and the tube body (2) is made of polymer material.

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