Pressure-resistant inner-rib reinforced PE spiral corrugated pipe

By introducing temporary protection and assembly mechanisms into the pressure-resistant internal rib reinforced PE spiral corrugated pipe, the problem of soil or debris entering during construction is solved, enabling automatic disassembly and convenient connection, thus improving construction efficiency.

CN224551093UActive Publication Date: 2026-07-24HEBEI QIANMING PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI QIANMING PLASTIC PROD CO LTD
Filing Date
2025-10-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing pressure-resistant internally reinforced PE spiral corrugated pipes are prone to soil or debris entering during construction, and the connection operation is inconvenient, affecting construction efficiency.

Method used

A temporary protection mechanism and an assembly mechanism were designed. The temporary protection mechanism prevents soil or debris from entering through mounting blocks, protective rings, and polylactic acid protective layers, and automatically disassembles after completion. The assembly mechanism achieves convenient connection through connecting rods and rotating screws.

Benefits of technology

It effectively prevents soil or debris from entering during construction, automatically decomposes after construction is completed, and can be easily connected to external pipelines, improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of pressure-resistant inner rib reinforced PE spiral corrugated pipes, it is related to the technical field of corrugated pipe, including: corrugated pipe body and corrugated body, mounting block and protection ring, the mounting block is located in the outer wall of corrugated pipe body, the outer wall of corrugated pipe body is equipped with mounting screw groove, the outer wall of mounting block is equipped with mounting screw rod, the outer wall of mounting block is equipped with protection ring, the outer wall of mucilage is equipped with polylactic acid protective layer. The utility model is equipped with temporary protection mechanism by installation, mounting block is installed in one side of corrugated pipe body, and polylactic acid protective layer is fixed in the inside of protection ring by mucilage, then the hollow part of protection ring is sealed, polylactic acid protective layer is used to block soil or sundries, after the installation of corrugated pipe body, polylactic acid protective layer is contacted with moisture, moisture penetrates into material inside, makes ester bond in PLA molecular chain break, generates oligomer and lactic acid monomer, automatic decomposition, does not affect the internal normal circulation of corrugated pipe body.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically to a pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe. Background Technology

[0002] Pressure-resistant internally ribbed reinforced PE spiral corrugated pipe is an all-plastic pipe made of high-density polyethylene (HDPE) through a special process. Its core feature is that the internal rib structure and spiral corrugated design significantly improve the pipe's pressure resistance and overall strength. Using high-density polyethylene (HDPE) as the main raw material, it has excellent corrosion resistance, wear resistance, aging resistance and chemical stability, and is suitable for corrosive sewage, industrial wastewater and municipal drainage.

[0003] Patent document CN218644602U discloses a corrugated pipe, which "belongs to the field of pipe technology. It includes a pipe body, with a connecting member at one end. The connecting member includes a base plate on the outer peripheral wall of the pipe body, a connecting pipe on the base plate, and several locking blocks inclined at the top of the connecting pipe away from the central axis. A driving sleeve is movably connected to the connecting pipe to drive the locking blocks towards the central axis. A connecting structure is provided between the driving sleeve and the locking blocks to connect them. Through this invention, the driving sleeve drives the locking blocks towards each other towards the central axis, thereby allowing the locking blocks to abut against the surfaces of other pipe fittings, increasing the friction between the locking blocks and other pipe fittings, making it difficult for other pipe fittings to detach from the pipe body, and making the connection operation convenient, time-saving, and labor-saving."

[0004] However, the corrugated pipe in the aforementioned published literature mainly considers making it difficult for other pipe fittings to detach from the pipe body, making the connection operation convenient, saving time and effort, but it is not convenient to prevent soil or debris from entering during construction.

[0005] In view of this, it is necessary to develop a temporary protective mechanism that can prevent soil or debris from entering during construction and decompose automatically after completion. Utility Model Content

[0006] The purpose of this utility model is to provide a pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe to solve the technical problem mentioned in the background art of enabling the pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe to have a temporary protective function.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe, comprising: a corrugated pipe body and a corrugated body, wherein the outer wall of the corrugated pipe body is provided with a temporary protective mechanism, which is used to prevent soil or debris from entering during construction and automatically decomposes after completion;

[0008] The temporary protection mechanism includes a mounting block and a protective ring. The mounting block is located on the outer wall of the corrugated pipe body. The outer wall of the corrugated pipe body is provided with a mounting screw groove. A mounting screw is installed on the outer wall of the mounting block, and one end of the mounting screw extends into the interior of the mounting screw groove. A protective ring is installed on the outer wall of the mounting block. Adhesive is installed on the inner wall of the protective ring. A polylactic acid protective layer is installed on the outer wall of the adhesive.

[0009] Preferably, the outer wall of the corrugated pipe body is provided with a corrugated body.

[0010] Preferably, the outer wall of the corrugated pipe body is provided with an assembly mechanism, which is used to facilitate the assembly of the corrugated pipe body with the outside world.

[0011] Preferably, the assembly mechanism includes a first connecting rod and a second connecting rod, the outer wall of the corrugated pipe body is provided with a connecting corrugated pipe, and the outer wall of the corrugated pipe body is equipped with the first connecting rod.

[0012] Preferably, a second connecting rod is installed on the outer wall of the connecting bellows, the outer wall of the first connecting rod is provided with an assembly screw groove, and the inner wall of the second connecting rod is provided with an assembly through groove.

[0013] Preferably, the outer walls of both the first connecting rod and the second connecting rod are provided with rotating screw grooves, an assembly collar is installed at the bottom of the first connecting rod, and an assembly sleeve is installed at the bottom of the second connecting rod.

[0014] Preferably, a rotating screw is installed on the top of both the assembly ring and the assembly sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by installing a temporary protective mechanism, prevents soil or debris from entering during construction and automatically decomposes after completion. Existing corrugated pipe bodies often experience soil or debris entering during construction, thus requiring improvement. First, an installation block is wrapped around the outside of the corrugated pipe body and fixed to the installation screw groove using installation screws. The installation block is installed on one side of the corrugated pipe body, and the polylactic acid (PLA) protective layer is fixed inside the protective ring with adhesive, sealing the hollow parts of the protective ring. The PLA protective layer then blocks soil or debris. Simultaneously, after the corrugated pipe body is installed, the PLA protective layer comes into contact with moisture. The moisture penetrates into the material, causing the ester bonds in the PLA molecular chain to break, generating oligomers and lactic acid monomers, which then automatically decompose without affecting the normal internal flow of the corrugated pipe body.

[0017] 2. This utility model, by installing an assembly mechanism, facilitates the assembly of the corrugated pipe body with the outside world. Existing corrugated pipe bodies, due to the obstruction of internal soil and debris, cannot be easily connected to external pipes. Therefore, this needs to be improved. First, the assembly collar and assembly sleeve are fixed to the bottom of the first connecting rod and the second connecting rod respectively by rotating the assembly collar. They are then fixed into the rotating screw groove by rotating the screw. Subsequently, bolts are inserted through the assembly through groove and fixed into the assembly screw groove, thus connecting the first connecting rod and the second connecting rod. The assembly sleeve is then inserted into the assembly collar, thus completing the connection of the pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the corrugated pipe body of this utility model;

[0019] Figure 2 This is a schematic diagram of the side structure of the corrugated pipe body of this utility model;

[0020] Figure 3 This is a schematic diagram of the side structure of the protective ring of this utility model;

[0021] Figure 4 This is a side view of the assembled collar structure of this utility model.

[0022] In the diagram: 1. Corrugated pipe body; 2. Corrugated body; 3. Mounting block; 4. Mounting screw groove; 5. Mounting screw; 6. Protective ring; 7. Adhesive; 8. Polylactic acid protective layer; 9. Connecting corrugated pipe; 10. First connecting rod; 11. Assembly screw groove; 12. Second connecting rod; 13. Assembly through groove; 14. Rotating screw groove; 15. Rotating screw; 16. Assembly collar; 17. Assembly sleeve. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2 A pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe includes: a corrugated pipe body 1 and a corrugated body 2. The outer wall of the corrugated pipe body 1 is provided with the corrugated body 2. The corrugated pipe body 1 is a pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe, commonly used in drainage work. The corrugated pipe body 1 is a pipe formed by extrusion and concave winding of high-density polyethylene as the matrix. Its outer wall is spirally corrugated, and there are polyethylene vertical ribs and two oblique support ribs with the vertical ribs as the symmetrical plane. The internal rib structure in the middle of the corrugations of the corrugated pipe body 1 greatly improves the stability of the corrugation peaks, giving the pipe extremely high ring stiffness, good pressure resistance, and good impact resistance. The internally ribbed reinforced polyethylene spiral corrugated pipe has a reasonable spiral corrugated structure, which is conducive to expanding the contact surface with the soil and allowing the backfill soil filled into the troughs of the pipe and the pipe itself to jointly bear the pressure of the surrounding soil, forming a pipe-soil co-pressure resistance.

[0027] Please see Figure 2 and Figure 3The outer wall of the corrugated pipe body 1 is equipped with a temporary protective mechanism to prevent soil or debris from entering during construction. This mechanism automatically disassembles upon completion. The temporary protective mechanism includes an installation block 3 and a protective ring 6. The installation block 3 is located on the outer wall of the corrugated pipe body 1, and the outer wall of the corrugated pipe body 1 has an installation screw groove 4. An installation screw 5 is installed on the outer wall of the installation block 3, with one end of the installation screw 5 extending into the interior of the installation screw groove 4. A protective ring 6 is installed on the outer wall of the installation block 3, and adhesive 7 is installed on the inner wall of the protective ring 6. A polylactic acid protective layer 8 is installed on the outer wall of the adhesive 7. Currently, during construction, soil or debris may enter the corrugated pipe body 1. Therefore, improvements are needed. First, the mounting block 3 is wrapped around the outside of the corrugated pipe body 1 and fixed to the mounting screw groove 4 using the mounting screw 5. The mounting block 3 is installed on one side of the corrugated pipe body 1, and the polylactic acid protective layer 8 is fixed inside the protective ring 6 with adhesive 7, thus sealing the hollow part of the protective ring 6. The polylactic acid protective layer 8 is used to block dirt or debris. At the same time, after the corrugated pipe body 1 is installed, the polylactic acid protective layer 8 comes into contact with water. The water penetrates into the material, causing the ester bonds in the PLA molecular chain to break, generating oligomers and lactic acid monomers, which then decompose automatically without affecting the normal internal flow of the corrugated pipe body 1.

[0028] Please see Figure 3 and Figure 4 The outer wall of the corrugated pipe body 1 is provided with an assembly mechanism for facilitating the assembly of the corrugated pipe body 1 with the outside world. The assembly mechanism includes a first connecting rod 10 and a second connecting rod 12. The outer wall of the corrugated pipe body 1 is provided with a connecting corrugated pipe 9. The first connecting rod 10 is installed on the outer wall of the corrugated pipe body 1, and the second connecting rod 12 is installed on the outer wall of the connecting corrugated pipe 9. The outer wall of the first connecting rod 10 is provided with an assembly screw groove 11, and the inner wall of the second connecting rod 12 is provided with an assembly through groove 13. The outer walls of both the first connecting rod 10 and the second connecting rod 12 are provided with a rotating screw groove 14. An assembly collar 16 is installed at the bottom of the first connecting rod 10, and an assembly collar 16 is installed at the bottom of the second connecting rod 12. The top of the sleeve 17, the assembly ring 16, and the assembly sleeve 17 are all equipped with rotating screws 15. The existing corrugated pipe body 1 cannot be easily connected to the external pipe due to the obstruction of the inside by mud and debris. Therefore, it is necessary to improve this. First, the assembly ring 16 and the assembly sleeve 17 are fixed to the bottom of the first connecting rod 10 and the second connecting rod 12 respectively by rotating them. Then, the screws 15 are fixed to the rotating screw groove 14 for installation. Then, the bolts are inserted through the assembly through groove 13 and fixed to the assembly screw groove 11. The first connecting rod 10 and the second connecting rod 12 are then connected. The assembly sleeve 17 is then inserted into the assembly ring 16, thus completing the connection of the pipe.

[0029] Working principle: The corrugated pipe body 1 is a pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe, commonly used in drainage work. The corrugated pipe body 1 is a pipe formed by extrusion and concave winding of high-density polyethylene as the matrix. Its outer wall is spirally corrugated, and the corrugations contain polyethylene vertical ribs and two oblique support ribs symmetrical to the vertical ribs. The internal rib structure in the middle of the corrugations of the corrugated pipe body 1 greatly improves the stability of the corrugation peaks, giving the pipe extremely high ring stiffness, good pressure resistance, and impact resistance. The internally ribbed reinforced polyethylene spiral corrugated pipe has a reasonable spiral corrugated structure, which is conducive to expanding the contact surface with the soil and allowing the backfill soil filled into the pipe troughs and the pipe itself to jointly bear the pressure of the surrounding soil, forming a pipe-soil co-pressure resistance. However, during construction, existing corrugated pipe bodies 1 may experience soil or debris entering the corrugated pipe body 1, so improvements are needed. First, the mounting block 3 is wrapped around the outside of the corrugated pipe body 1 and fixed to the mounting screw groove 4 using the mounting screw 5. The mounting block 3 is then installed on one side of the corrugated pipe body 1, and polylactic acid insulation... The protective layer 8 is fixed inside the protective ring 6 by the adhesive 7, thus sealing the hollow part of the protective ring 6. The polylactic acid protective layer 8 blocks dirt or debris. At the same time, after the corrugated pipe body 1 is installed, the polylactic acid protective layer 8 comes into contact with water. The water penetrates into the material, causing the ester bonds in the PLA molecular chain to break, generating oligomers and lactic acid monomers, which then decompose automatically without affecting the normal flow inside the corrugated pipe body 1. The existing corrugated pipe body 1 cannot be easily connected to external pipes because it is blocked by dirt and debris inside. Therefore, it needs to be improved. First, the assembly collar 16 and the assembly sleeve 17 are fixed to the bottom of the first connecting rod 10 and the second connecting rod 12 respectively by rotating the assembly collar 16 and the assembly sleeve 17. The assembly sleeve 17 is fixed into the rotating screw groove 14 by rotating the screw 15. Then, the bolt is inserted into the assembly through groove 13 and fixed into the assembly screw groove 11, thus connecting the first connecting rod 10 and the second connecting rod 12. The assembly sleeve 17 is then inserted into the assembly collar 16, thus completing the connection of the pipe.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure-resistant, internally ribbed reinforced PE spiral corrugated pipe, characterized in that, Includes: a corrugated pipe body (1) and a corrugated body (2). The outer wall of the corrugated pipe body (1) is provided with a temporary protection mechanism, which is used to prevent soil or debris from entering during construction and automatically decomposes after completion. The temporary protection mechanism includes a mounting block (3) and a protective ring (6). The mounting block (3) is located on the outer wall of the corrugated pipe body (1). The outer wall of the corrugated pipe body (1) is provided with a mounting screw groove (4). The outer wall of the mounting block (3) is equipped with a mounting screw (5), and one end of the mounting screw (5) extends into the interior of the mounting screw groove (4). The outer wall of the mounting block (3) is equipped with a protective ring (6). The inner wall of the protective ring (6) is equipped with adhesive (7). The outer wall of the adhesive (7) is equipped with a polylactic acid protective layer (8).

2. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 1, characterized in that: The outer wall of the corrugated pipe body (1) is provided with a corrugated body (2).

3. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 1, characterized in that: The outer wall of the corrugated pipe body (1) is provided with an assembly mechanism, which is used to facilitate the assembly of the corrugated pipe body (1) with the outside world.

4. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 3, characterized in that: The assembly mechanism includes a first connecting rod (10) and a second connecting rod (12). The outer wall of the corrugated pipe body (1) is provided with a connecting corrugated pipe (9), and the outer wall of the corrugated pipe body (1) is equipped with the first connecting rod (10).

5. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 4, characterized in that: The outer wall of the connecting bellows (9) is equipped with a second connecting rod (12), the outer wall of the first connecting rod (10) is provided with an assembly screw groove (11), and the inner wall of the second connecting rod (12) is provided with an assembly through groove (13).

6. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 4, characterized in that: The outer walls of the first connecting rod (10) and the second connecting rod (12) are provided with rotating screw grooves (14). An assembly collar (16) is installed at the bottom of the first connecting rod (10), and an assembly sleeve (17) is installed at the bottom of the second connecting rod (12).

7. The pressure-resistant internally ribbed reinforced PE spiral corrugated pipe according to claim 6, characterized in that: The top of both the assembly collar (16) and the assembly sleeve (17) is equipped with a rotating screw (15).