High strength double layer impact wave bellow

Abstract

The utility model discloses a kind of high-strength double-layer impact corrugated pipes, including corrugated pipe body, the equidistantly arranged tube wave crest and tube wave trough on corrugated pipe body, outer ring surface of tube wave crest is fixedly provided with outer layer wave crest impact resistance component, inner ring surface of tube wave trough is fixedly provided with inner layer wave trough impact resistance component, outer layer wave crest impact resistance component includes the outer reinforcing cover fixedly connected on tube wave crest, inner layer wave trough impact resistance component includes the inner pressure-resistant disc fixedly connected on tube wave trough, and the butt joint cylinder is fixedly connected in the end of corrugated pipe body.The high-strength double-layer impact corrugated pipe avoids the local deformation or rupture caused by stress concentration, reduces the excessive deformation of corrugated pipe under the action of radial force, prolongs service life, can also adapt to more complex working environment, reduces the medium leakage risk caused by radial impact, enhances the security and stability of system operation.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipes, specifically a high-strength double-layer impact-resistant corrugated pipe. Background Technology

[0002] Existing spiral corrugated pipes are tubular shells with corrugated pipes arranged in a spiral shape. There is a helical angle between the corrugations, and all the corrugations can be connected by a helix. Spiral corrugated pipes have the advantages of light weight, low cost and long service life. The pipe diameter can be made very large. They are widely used in buried drainage, sewage and irrigation for industrial, agricultural and municipal purposes. However, existing spiral corrugated pipes have the following problems when used: the strength of the spiral corrugated pipe is not high enough and the impact resistance is not good enough. When subjected to external impact, it is easy to deform or break, which affects the service life of the spiral corrugated pipe and has limitations in use.

[0003] To address the aforementioned issues, a search revealed that CN222479869U discloses an impact-resistant spiral corrugated pipe. The pipe includes a pipe body with connecting ends fixed at both ends. An impact-resistant component is disposed inside the pipe body. The impact-resistant component includes reinforcing ribs evenly spaced inside the pipe body. Rubber blocks are evenly spaced on the inner surface of the reinforcing ribs, and the surfaces of the rubber blocks are bonded to the inner wall of the pipe body.

[0004] Although the aforementioned device can install multiple reinforcing ribs at equal angles inside the pipe body, thereby improving the impact resistance and strength of the spiral corrugated pipe during later use, in actual use, the reinforcing ribs are horizontally fixed inside the corrugated pipe in strip shape. They can only support and reinforce the axial force. When the corrugated pipe is subjected to radial force, the reinforcing ribs cannot support the corrugated pipe. Especially when subjected to squeezing or stepping, the corrugated pipe wall will dent inward due to the lack of radial support, resulting in local deformation, damage, and affecting its normal use. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength double-layer impact-resistant corrugated pipe to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, a high-strength double-layer impact-resistant corrugated pipe is provided, comprising a corrugated pipe body, wherein pipe crests and pipe troughs are equidistantly arranged on the corrugated pipe body, an outer layer crest impact-resistant component is fixedly arranged on the outer ring surface of the pipe crests, and an inner layer trough impact-resistant component is fixedly arranged on the inner ring surface of the pipe troughs. The outer layer crest impact-resistant component includes an outer reinforcing cover fixedly connected to the pipe crests, and the inner layer trough impact-resistant component includes an inner pressure-resistant plate fixedly connected to the pipe troughs. A connecting cylinder is fixedly connected to the end of the corrugated pipe body.

[0007] Preferably, the outer side of the tube wave crest is supported and reinforced by an outer wave crest impact-resistant component. The outer wave crest impact-resistant component also includes a strength plate and an opening, and an outer reinforcing cover is fixedly connected to the end of the strength plate.

[0008] Preferably, the outer reinforcing cover has an arc-shaped cross-section and covers the outer ring surface of the tube wave crest. A strength plate is fixedly connected between two adjacent sets of outer reinforcing covers. The strength plate is ring-shaped and distributed opposite to the inner anti-compression plate.

[0009] Preferably, the strength sheet and the inner pressure plate are concentric circles, and the outer ring surface of the strength sheet has equidistant openings, forming a medium-accommodating space between the strength sheets.

[0010] Preferably, the inner side of the wave valley is supported and reinforced by an inner wave valley anti-impact component, which also includes a force-bearing block and a radial support frame.

[0011] Preferably, the force-bearing blocks are configured as four groups equidistantly fixed to the inner ring surface of the inner pressure-resistant disc. The force-bearing blocks are arc-shaped, and radial support frames are fixedly installed on the force-bearing blocks. The radial support frames are cross-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This solution combines an inner trough-type impact-resistant component and an outer crest-type impact-resistant component to form the radial impact resistance of the bellows body. It can form synergistic protection from both the inner and outer sides of the bellows body. The outer component resists external radial compression and collision impacts, while the inner component resists radial loads caused by internal pressure fluctuations and fluid impacts. The combination of the two can disperse radial stress in all directions, avoid local deformation or rupture caused by stress concentration, reduce excessive deformation of the bellows under radial force, extend service life, adapt to more complex working environments, reduce the risk of media leakage caused by radial impact, and enhance the safety and stability of system operation.

[0014] 2. This solution improves the gravity and compressive strength of the corrugated pipe body by filling the medium-containing space with a buffer medium through the opening. The buffer medium includes, but is not limited to, soil. By filling the medium-containing space with a buffer medium, including soil, the medium's own density and fluidity can disperse the force through deformation and stress transfer when the corrugated pipe body is subjected to external pressure or gravity load, reducing local stress concentration and thus enhancing the overall compressive strength. At the same time, the filled medium can increase the overall weight of the corrugated pipe, improving its stability during installation or use and avoiding displacement or shaking caused by external forces or its own weight reduction. Moreover, soil and other media are widely available and low in cost. Attached Figure Description

[0015] Figure 1This is a three-dimensional view of the impact-resistant bellows structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the impact-resistant bellows of this utility model;

[0017] Figure 3 This is a bottom view of the impact-resistant bellows structure of this utility model;

[0018] Figure 4 for Figure 1 Enlarged structural diagram at point A in the diagram;

[0019] Figure 5 This is a rear view of the impact-resistant bellows structure of this utility model.

[0020] The following are the labeling elements in the diagram: 1. Corrugated pipe body; 2. Connecting cylinder; 3. Pipe crest; 31. Outer crest impact-resistant component; 311. Outer reinforcing cover; 312. Strength sheet; 313. Opening; 314. Medium containment space; 4. Pipe trough; 41. Inner trough impact-resistant component; 411. Inner pressure-resistant plate; 412. Stress-bearing block; 413. Radial support frame. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a high-strength double-layer impact-resistant corrugated pipe, including a corrugated pipe body 1. Corrugated pipe crests 3 and corrugated pipe troughs 4 are equidistantly arranged on the corrugated pipe body 1. An outer layer crest impact-resistant component 31 is fixedly arranged on the outer ring surface of the corrugated pipe crests 3, and an inner layer trough impact-resistant component 41 is fixedly arranged on the inner ring surface of the corrugated pipe troughs 4. The outer layer crest impact-resistant component 31 includes an outer reinforcing cover 311 fixedly connected to the corrugated pipe crests 3, and the inner layer trough impact-resistant component 41 includes an inner pressure-resistant plate 411 fixedly connected to the corrugated pipe troughs 4. A connecting cylinder 2 is fixedly connected to the end of the corrugated pipe body 1.

[0022] In a preferred embodiment, the outer side of the tube wave crest 3 is supported and reinforced by an outer wave crest impact-resistant component 31. The outer wave crest impact-resistant component 31 also includes a strength sheet 312 and an opening 313. An outer reinforcing cover 311 is fixedly connected to the end of the strength sheet 312.

[0023] The outer reinforcing cover 311 has an arc-shaped cross section and covers the outer ring surface of the tube wave crest 3. A strength plate 312 is fixedly connected between two adjacent sets of outer reinforcing covers 311. The strength plate 312 is ring-shaped and is distributed relative to the inner pressure plate 411.

[0024] The strength plate 312 and the inner pressure plate 411 are concentric circles. The outer ring surface of the strength plate 312 is provided with holes 313 at equal intervals, and a medium-accommodating space 314 is formed between the strength plates 312.

[0025] like Figure 1 and Figure 4 As shown: A medium-accommodating space 314 is formed between the strength plates 312. A buffer medium can be filled into the medium-accommodating space 314 through the opening 313 to improve the gravity and compressive strength of the corrugated pipe body 1. The buffer medium includes, but is not limited to, soil. Filling the medium-accommodating space 314 with a buffer medium, including soil, through the opening 313 utilizes the density and fluidity of the medium itself. When the corrugated pipe body 1 is subjected to external pressure or gravity load, the deformation and stress transfer of the medium disperse the force, reducing localized stress concentration and thus enhancing the overall compressive strength. Simultaneously, the filled medium increases the overall weight of the corrugated pipe, improving its stability during installation or use, preventing displacement or shaking caused by external forces or its own weight reduction. Furthermore, soil and other media are widely available, low-cost, and easy to fill. The filling amount can be flexibly adjusted according to actual needs to adapt to different compressive strength and gravity requirements, further optimizing the performance and applicability of the corrugated pipe.

[0026] In a preferred embodiment, the inner side of the wave valley 4 is supported and reinforced by an inner wave valley anti-impact component 41, which also includes a force-bearing block 412 and a radial support frame 413.

[0027] The force-bearing blocks 412 are configured as four groups of equidistant fixed to the inner ring surface of the inner pressure-resistant plate 411. The force-bearing blocks 412 are arc-shaped, and radial support frames 413 are fixedly installed on the force-bearing blocks 412. The radial support frames 413 are cross-shaped.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown: The arrangement of the radial support frame 413 inside the bellows body 1 can be determined according to the radial force situation of the bellows body 1 during use. The radial support frame 413 is cross-shaped, which can evenly distribute the radial force in different directions through the symmetrical characteristics of the cross structure, ensuring force balance and avoiding excessive local stress. At the same time, the cross-shaped design can provide more stable support stiffness with the same amount of material, enhance the radial constraint on the inner wall of the bellows, prevent deformation or collapse caused by radial force, and adjust the arrangement position according to the actual force situation to make the support more targeted, improve support efficiency, take into account the structural lightweight and support strength, and further ensure the stability and durability of the bellows body under complex stress environment.

[0029] Working Principle: An outer wave crest anti-impact component 31 is fixedly covered on the outer wave crest 3 of the corrugated pipe body 1, providing external impact protection. An inner wave trough anti-impact component 41 is fixedly covered on the inner wave trough 4 of the corrugated pipe body 1, providing internal impact protection. The outer wave crest anti-impact component 31, covering the wave crest 3, effectively resists external impacts, compression, or collisions, preventing direct damage to the corrugated pipe body 1. The inner wave trough anti-impact component 41, covering the wave trough 4, resists internal pressure fluctuations, fluid impacts, or foreign object friction, protecting the inner wall of the corrugated pipe from damage. The synergistic effect of the outer wave crest anti-impact component 31 and the inner wave trough anti-impact component 41 enhances the structural rigidity of the corrugated pipe body 1, reducing the risk of excessive deformation. The outer wave crest anti-impact component 31 and the inner wave trough anti-impact component 41 disperse impact forces, preventing stress concentration at a certain point or area, thereby reducing localized cracking. The outer corrugated peak impact-resistant component 31 can block the erosion of external corrosive substances or particles; the inner corrugated valley impact-resistant component 41 and the outer corrugated peak impact-resistant component 31 together constitute the radial impact resistance of the bellows body 1, which can form a synergistic protection from the inner and outer sides of the bellows body 1. The outer component resists external radial extrusion, collision and other impact forces, while the inner component resists the radial load caused by internal pressure fluctuations and fluid impact. The two together can disperse radial stress in all directions, avoid local deformation or cracking caused by stress concentration. At the same time, by utilizing their respective structural characteristics, such as the outer reinforcing cover 311, strength plate 312 and inner pressure plate 411, force block 412 and radial support frame 413, the overall radial stiffness and fatigue resistance of the bellows body 1 are improved, the excessive deformation of the bellows under radial force is reduced, the service life is extended, and it can also adapt to more complex working environments, reduce the risk of media leakage caused by radial impact, and enhance the safety and stability of system operation.

Claims

1. A high-strength double-layer impact-resistant corrugated pipe, comprising a corrugated pipe body (1), characterized in that: The corrugated pipe body (1) is provided with pipe crests (3) and pipe troughs (4) at equal intervals. An outer layer crest impact-resistant component (31) is fixedly provided on the outer ring surface of the pipe crest (3), and an inner layer trough impact-resistant component (41) is fixedly provided on the inner ring surface of the pipe trough (4). The outer layer crest impact-resistant component (31) includes an outer reinforcing cover (311) fixedly connected to the pipe crest (3), and the inner layer trough impact-resistant component (41) includes an inner pressure-resistant plate (411) fixedly connected to the pipe trough (4). A docking cylinder (2) is fixedly connected to the end of the corrugated pipe body (1).

2. The high-strength double-layer impact-resistant corrugated pipe according to claim 1, characterized in that: The outer side of the tube wave crest (3) is supported and reinforced by an outer wave crest impact-resistant component (31). The outer wave crest impact-resistant component (31) also includes a strength plate (312) and an opening (313). An outer reinforcing cover (311) is fixedly connected to the end of the strength plate (312).

3. The high-strength double-layer impact-resistant corrugated pipe according to claim 2, characterized in that: The outer reinforcing cover (311) has an arc-shaped cross section and covers the outer ring surface of the tube wave crest (3). A strength plate (312) is fixedly connected between two adjacent sets of outer reinforcing covers (311). The strength plate (312) is ring-shaped and is distributed relative to the inner anti-compression plate (411).

4. A high-strength double-layer impact-resistant corrugated pipe according to claim 3, characterized in that: The strength plate (312) and the inner pressure plate (411) are concentric circles. The outer ring surface of the strength plate (312) is provided with openings (313) at equal intervals, and a medium-accommodating space (314) is formed between the strength plates (312).

5. A high-strength double-layer impact-resistant corrugated pipe according to claim 1, characterized in that: The inner side of the tube wave valley (4) is supported and reinforced by the inner wave valley anti-impact component (41), which also includes a force-bearing block (412) and a radial support frame (413).

6. A high-strength double-layer impact-resistant corrugated pipe according to claim 5, characterized in that: The force-bearing block (412) is configured as four groups of equidistant fixed to the inner ring surface of the inner pressure plate (411). The force-bearing block (412) is arc-shaped, and a radial support frame (413) is fixedly installed on the force-bearing block (412). The radial support frame (413) is cross-shaped.

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