Corrugated tube with end protection function

Abstract

This utility model provides a corrugated pipe with end protection function, relating to the field of corrugated pipe technology. It includes a corrugated pipe body, a connecting pipe, a tapered sheath, a reinforcing structure, and a shielding ring. Reinforcing structures are provided on the left and right sides of the outer wall of the corrugated pipe body to improve mechanical strength, enhance the structural strength and rigidity of the ends of the corrugated pipe body, increase resistance to deformation and impact, and disperse stress. Simultaneously, the outer tapered sheath shields the outside of the connecting end of the corrugated pipe body, blocking collisions from the outside. A shielding ring is installed on the inner end face of the tapered sheath to prevent dust and impurities from entering, thus improving the protection performance of the corrugated pipe body connection.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and in particular to a corrugated pipe with end protection function. Background Technology

[0002] The descriptions in this section provide background information relevant to this disclosure only and do not constitute prior art.

[0003] In oil pipeline systems, bellows serve as compensators, expansion joints, or flexible connectors to absorb thermal expansion and contraction, ground settlement, vibration, and noise.

[0004] Stress concentration occurs at the end connection of the bellows, which can easily lead to fatigue cracks or plastic deformation under long-term vibration, pressure pulses or external impacts. Utility Model Content

[0005] The purpose of this utility model is to provide a corrugated pipe with end protection function, which has the advantages of enhancing the mechanical strength of the left and right sides of the outer wall of the corrugated pipe body and blocking collisions on the outside. It solves the technical problem that stress concentration at the end connection of the corrugated pipe makes it easy for fatigue cracks or plastic deformation to occur at this point under long-term vibration, pressure pulse or external impact.

[0006] This utility model provides a bellows with end protection function, comprising: The corrugated pipe body has connecting pipes at both ends; The outer wall of the connecting pipe is fixedly fitted with a tapered sheath, with its larger end facing the corrugated pipe body. The inner end of the tapered sheath covers the outer side of the corrugated pipe body connection end on the same side; The outer walls of the corrugated pipe body are fitted with reinforcing structures on both the left and right sides. A shielding ring is coaxially fixed to the inner end face of the conical sheath, and its inner ring surface is in contact with the outer wall of the reinforcing structure.

[0007] As a further optimization, to enhance the mechanical strength of both ends of the bellows body, improve the structural strength and stiffness of the bellows body ends, enhance resistance to deformation and impact, and disperse stress, the reinforcing structure includes: An elastic filler is used to fill the troughs at both ends of the outer wall of the corrugated pipe body. The crests of the outer wall of the elastic filler and the outer wall of the corrugated pipe body are located on the same curved surface.

[0008] As a further optimization, in order to better improve the mechanical strength of both ends of the corrugated pipe body, improve the structural strength and rigidity of the ends of the corrugated pipe body, enhance the ability to resist deformation and impact, and disperse stress, a spiral metal ring is fitted inside the trough at both ends of the outer wall of the corrugated pipe body. The spiral metal ring is located within the elastic filler on the same side, and the spiral metal ring is coaxially arranged with the corrugated pipe body.

[0009] As a further optimization, in order to improve the mechanical strength of both ends of the corrugated pipe body, enhance the structural strength and rigidity of the ends of the corrugated pipe body, strengthen the ability to resist deformation and impact, and disperse stress, thickened layers are provided on both the left and right sides of the inner wall of the corrugated pipe body.

[0010] As a further optimization, in order to better improve the mechanical strength of both ends of the corrugated pipe body, improve the structural strength and rigidity of the ends of the corrugated pipe body, enhance the ability to resist deformation and impact, and disperse stress, the spiral metal ring has at least 2 turns.

[0011] As a further optimization, in order to connect and fix the corrugated pipe body and the connecting pipe and seal the connection, a connecting structure is installed between the two ends of the corrugated pipe body and the connecting pipe on the same side, and a sealing ring is provided inside the structure.

[0012] As a further optimization, to facilitate the installation and disassembly of the corrugated pipe body and the connecting pipe, the connection structure is specifically a connecting flange.

[0013] As a further optimization, in order to shield the inner end of the conical sheath and prevent dust and impurities from entering, the shielding ring includes: The mounting ring has connecting bolts evenly running through its inner edge; The end of the connecting bolt is screwed to the inner edge of the tapered sheath on the same side; An elastic rubber ring is glued and fixed to the inner ring surface of the mounting ring, and its inner ring surface is in contact with the outer wall of the reinforcing structure.

[0014] As a further optimization, in order to facilitate the installation and removal of the connecting bolts using specific tools and to prevent the bolt nuts from protruding from the inner edge of the mounting ring, the connecting bolts are specifically countersunk hexagonal head bolts.

[0015] As a further optimization, in order to better shield and protect the connecting ends on both sides of the corrugated pipe body, the conical sheath is specifically made of corrosion-resistant metal.

[0016] This utility model provides a bellows with end protection function through improvements, which has the following improvements and advantages compared with the prior art: Reinforcing structures are installed on the left and right sides of the outer wall of the corrugated pipe body to improve mechanical strength, enhance the structural strength and rigidity of the end of the corrugated pipe body, increase resistance to deformation and impact, and disperse stress. At the same time, an external conical sheath is installed on the outside of the connection end of the corrugated pipe body to block collisions. A shielding ring is installed on the inner end face of the conical sheath to prevent dust and impurities from entering, thereby improving the protection performance of the connection of the corrugated pipe body. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model without the conical sheath assembled; Figure 4 This is a schematic cross-sectional view of the corrugated pipe body and its two ends of the present invention. Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the shielding ring structure of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1-Corrugated pipe body, 2-Connecting pipe, 3-Connecting structure, 4-Conical sheath, 5-Shielding ring, 51-Mounting ring, 52-Connecting bolt, 53-Elastic rubber ring, 6-Thickening layer, 7-Elastic filler, 8-Spiral metal ring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] 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", "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 are not intended to indicate or imply that the device or element 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.

[0022] In the description of this utility model, it should be understood that 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a corrugated pipe with end protection function, comprising: The corrugated pipe body 1 has connecting pipes 2 at both ends; A tapered sheath 4 is fixedly fitted onto the outer wall of the connecting pipe 2, with its larger end facing the corrugated pipe body 1; The inner end of the tapered sheath 4 is blocked on the outside of the connecting end of the corrugated pipe body 1 on the same side; The outer walls of the corrugated pipe body 1 are equipped with reinforcing structures on both the left and right sides. A shielding ring 5 is coaxially fixed to the inner end face of the conical sheath 4, and its inner ring surface is in contact with the outer wall of the reinforcing structure.

[0024] Specifically, in this embodiment, the corrugated pipe body 1 is used to transport oil, and it is specifically a metal corrugated pipe made of corrosion-resistant metal material. Furthermore, reinforcing structures are provided on the left and right sides of the outer wall of the corrugated pipe body 1 to improve mechanical strength, enhance the structural strength and rigidity of the ends of the corrugated pipe body 1, increase resistance to deformation and impact, and disperse stress. More specifically, the outer conical sheath 4 is used to shield the outside of the connecting end of the corrugated pipe body 1, blocking the collision object on the outside. A shielding ring 5 is installed on the inner end face of the conical sheath 4 to prevent dust and impurities from entering and improve the protection performance of the connecting part of the corrugated pipe body 1. Understandably, the conical sheath 4 is made of corrosion-resistant steel, specifically fusion-bonded epoxy powder-coated steel, which is impact-resistant and chemically resistant.

[0025] In some embodiments, the enhancement structure includes: Elastic filler 7, which fills the troughs at both ends of the outer wall of the corrugated pipe body 1; The crests of the outer wall of the elastic filler 7 and the outer wall of the corrugated pipe body 1 are located on the same curved surface. Spiral metal rings 8 are fitted inside the troughs at both ends of the outer wall of the corrugated pipe body 1; The spiral metal ring 8 is located inside the elastic filler 7 on the same side, and the spiral metal ring 8 is coaxially arranged with the bellows body 1.

[0026] Specifically, in this embodiment, the elastic filler 7 is an elastic material such as oil-resistant and high-temperature-resistant rubber, polyurethane, or sealant; Furthermore, the spiral metal rings 8 are fitted at both ends of the outer wall of the bellows body 1. After being impacted, the force is dispersed, which improves the structural strength and rigidity of the end of the bellows body 1 and enhances its ability to resist deformation and impact. More specifically, the crests on the same side of the outer wall of the elastic filler 7 and the outer wall of the corrugated pipe body 1 are located on the same curved surface, making the curved surface on the same side of the outer wall of the corrugated pipe body 1 smooth and flat, which makes it easy for the inner ring surface of the shielding ring 5 to fit with it, avoiding gaps for dust and impurities to enter.

[0027] In some embodiments, thickening layers 6 are provided on both the left and right sides of the inner wall of the corrugated pipe body 1. The thickening layers 6 make the wall thickness of several corrugations at the end of the corrugated pipe body 1 greater than the wall thickness of the central corrugation, thereby enhancing the mechanical strength of the ends of the corrugated pipe body 1, improving the structural strength and rigidity of the ends of the corrugated pipe body 1, enhancing the ability to resist deformation and impact, and dispersing stress.

[0028] In some embodiments, the spiral metal ring 8 has at least two turns. The spiral metal ring 8 distributed in circles better improves the mechanical strength of both ends of the bellows body 1, has a better force distribution effect, improves the structural strength and stiffness of the ends of the bellows body 1, and enhances the ability to resist deformation and impact.

[0029] In some embodiments, a connecting structure 3 is installed between the two ends of the corrugated pipe body 1 and the connecting pipe 2 on the same side, and a sealing ring is provided inside the structure 3. Connection structure 3 is specifically a connection flange.

[0030] Specifically in this embodiment, the connecting structure 3 is used to connect the two ends of the corrugated pipe body 1 and the connecting pipe 2 on the same side; Furthermore, the sealing ring is used to seal between the end face of the bellows body 1 and the connecting surface of the connecting pipe 2 to prevent water leakage; More specifically, the connecting flange serves as the connecting structure 3. After removing all the bolts, it facilitates the separation of the bellows body 1 and the connecting pipe 2. During installation, the operation can be reversed.

[0031] In some embodiments, the shielding ring 5 includes: Mounting ring 51, with connecting bolts 52 evenly passing through its inner edge; The end of the connecting bolt 52 is screwed to the inner edge of the tapered sleeve 4 on the same side; An elastic rubber ring 53 is glued and fixed to the inner ring surface of the mounting ring 51, and its inner ring surface is in contact with the outer wall of the reinforcing structure. The connecting bolt 52 is specifically a countersunk head hexagonal bolt.

[0032] Specifically in this embodiment, the elastic rubber ring 53 is made of elastic material and fits into the outer wall of the reinforced structure, shielding the inner end of the conical sheath 4 to prevent dust and impurities from entering; Furthermore, specific tools are used to install and remove the connecting bolts using the internal hexagon countersunk head bolts, to prevent the nut of the connecting bolt 52 from protruding from the inner edge of the mounting ring.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A corrugated pipe with end protection function, characterized in that, include: The corrugated pipe body (1) is equipped with connecting pipes (2) at both ends; The outer wall of the connecting pipe (2) is fixedly fitted with a tapered sheath (4), with its larger end facing the corrugated pipe body (1). The inner end of the conical sheath (4) covers the outer side of the connecting end of the corrugated pipe body (1) on the same side; The outer walls of the corrugated pipe body (1) are equipped with reinforcing structures on both the left and right sides; The inner end face of the conical sheath (4) is coaxially fixed with a shielding ring (5), the inner ring surface of which is in contact with the outer wall of the reinforcing structure.

2. A corrugated pipe with end protection function according to claim 1, characterized in that, The enhancement structure includes: Elastic filler (7) is filled in the troughs at both ends of the outer wall of the corrugated pipe body (1); The crests of the outer wall of the elastic filler (7) and the outer wall of the corrugated pipe body (1) are located on the same curved surface.

3. A corrugated pipe with end protection function according to claim 2, characterized in that, Spiral metal rings (8) are fitted inside the troughs at both ends of the outer wall of the corrugated pipe body (1). The spiral metal ring (8) is located inside the elastic filler (7) on the same side, and the spiral metal ring (8) is coaxially arranged with the corrugated pipe body (1).

4. A corrugated pipe with end protection function according to claim 2, characterized in that, The corrugated pipe body (1) has thickened layers (6) on both the left and right sides of its inner wall.

5. A corrugated pipe with end protection function according to claim 3, characterized in that, The spiral metal ring (8) has at least two turns.

6. A corrugated pipe with end protection function according to claim 1, characterized in that, The corrugated pipe body (1) is equipped with a connecting structure (3) at both ends and the connecting pipe (2) on the same side, and a sealing ring is provided inside the structure.

7. A corrugated pipe with end protection function according to claim 6, characterized in that, The connection structure (3) is specifically a connection flange.

8. A corrugated pipe with end protection function according to claim 1, characterized in that, The shielding ring (5) includes: The mounting ring (51) has connecting bolts (52) evenly passing through its inner edge. The end of the connecting bolt (52) is screwed to the inner edge of the conical sleeve (4) on the same side; An elastic rubber ring (53) is attached to the inner ring surface of the mounting ring (51), and its inner ring surface is in contact with the outer wall of the reinforcing structure.

9. A corrugated pipe with end protection function according to claim 8, characterized in that, The connecting bolt (52) is specifically a countersunk head hexagonal bolt.

10. A corrugated pipe with end protection function according to claim 1, characterized in that, The conical sheath (4) is specifically made of corrosion-resistant metal.

Images