HDPE corrugated pipe

Abstract

The utility model relates to the field of pipes, in particular to a high-density polyethylene (HDPE) corrugated pipe which is characterized by comprising a straight inner pipe, a corrugated outer pipe, a straight middle pipe and an isolating strip, the isolating strip is spirally arranged on the outer circumferential surface of the straight inner pipe in a surrounding mode, and the isolating strip and the straight inner pipe are jointly embedded in the straight middle pipe. The space between the inner wall of the straight middle pipe and the outer wall of the straight inner pipe is divided into spiral filling groove holes through isolation strips, the filling groove holes are filled with epoxy resin bodies capable of being hardened to form a spiral reinforcing structure, and the straight middle pipe is sleeved with the corrugated outer pipe. Compared with the prior art, the HDPE corrugated pipe has very high compression resistance, can greatly reduce the probability of excessive shrinkage deformation and fracture of the inner pipe when being used in a high-pressure environment, has very good use performance when being used in the high-pressure environment, and is particularly suitable for being used in the high-pressure environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe material, especially a kind of HDPE corrugated pipe material. BACKGROUND

[0002] At present, most HDPE corrugated pipes are composed of inner pipe and outer pipe, wherein the inner pipe is a straight pipe, and the outer pipe is a pipe body with corrugated structure, and the outer pipe is sleeved on the inner pipe. Since the inner pipe and the outer pipe of the existing HDPE corrugated pipe are made of HDPE material, and the hardness of HDPE material is limited, it will result in limited structural strength of the HDPE corrugated pipe. When the HDPE corrugated pipe is used in a high-pressure environment (for example, a large-depth buried installation environment, a large-weight mobile equipment rolling environment, and a heavy object accidentally hitting environment), it is easy to cause the inner pipe and the outer pipe of the HDPE corrugated pipe to appear excessive shrinkage deformation or even rupture, which will cause the use performance of the HDPE corrugated pipe to deteriorate. Therefore, the existing HDPE corrugated pipe is difficult to be used in a high-pressure environment. Therefore, it is necessary to design a kind of HDPE corrugated pipe to solve the above technical problems. SUMMARY

[0003] The utility model aims at solving the above problems and deficiencies, and provides a kind of HDPE corrugated pipe material, which can have very high compression resistance. When used in a high-pressure environment, it can greatly reduce the probability of excessive shrinkage deformation and rupture of the inner pipe. It also has very good use performance when used in a high-pressure environment. The HDPE corrugated pipe material is particularly suitable for use in a high-pressure environment.

[0004] The technical solution of the utility model is as follows:

[0005] A kind of HDPE corrugated pipe material, characterized in that it comprises a straight inner pipe, a corrugated outer pipe, a straight intermediate pipe and a spacer strip. The spacer strip is spirally arranged on the outer circumferential surface of the straight inner pipe. The spacer strip and the straight inner pipe are embedded in the straight intermediate pipe. The space between the inner wall of the straight intermediate pipe and the outer wall of the straight inner pipe is divided into spiral filling grooves by the spacer strip. The filling grooves are filled with epoxy resin bodies that can harden to form a spiral reinforcing structure. The corrugated outer pipe is sleeved on the straight intermediate pipe.

[0006] On the basis of the foregoing structure, the utility model gives five kinds of subdivision scheme, it is respectively: first, the isolation strip is steel pipe strip. Second, the isolation strip is provided with inner connecting convex strip on the outer wall of straight inner pipe, and makes the length direction of inner connecting convex strip and the length direction of isolation strip same direction, also makes inner connecting convex strip embed on the outer wall of straight inner pipe, the isolation strip is provided with outer connecting convex strip on the outer wall of straight intermediate pipe, and makes the length direction of outer connecting convex strip and the length direction of isolation strip same direction, also makes outer connecting convex strip embed on the inner wall of straight intermediate pipe. Third, the isolation strip and straight inner pipe are integral structure. Fourth, the isolation strip and straight intermediate pipe are integral structure. Fifth, the isolation strip and straight inner pipe, straight intermediate pipe are integral structure.

[0007] Preferably, the width K of the filling slot hole is 20mm-30mm; the thickness H of the filling slot hole is 4mm-6mm.

[0008] The utility model discloses the beneficial effect: on the HDPE corrugated pipe material, not only corrugated outer pipe, straight intermediate pipe and isolation strip can play the protection strengthening effect to straight inner pipe, and the hardened epoxy resin body can play the spiral strengthening effect to straight inner pipe, can form the high -strength pressure -resistant structure around straight inner pipe like this. Therefore, the HDPE corrugated pipe material can have very high pressure resistance, when using in the big pressure environment, can greatly reduce the probability of straight inner pipe appearance transition shrinkage deformation, rupture, and can have very good use performance when using in the big pressure environment, the HDPE corrugated pipe material is especially suitable in the big pressure environment, and it can have very high reliability and applicability. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is structure schematic drawing of subdivision scheme one in the utility model.

[0010] Figure 2 It is structure schematic drawing of subdivision scheme two in the utility model.

[0011] Figure 3 It is structure schematic drawing of subdivision scheme three in the utility model.

[0012] Figure 4 It is structure schematic drawing of subdivision scheme four in the utility model.

[0013] Figure 5 It is structure schematic drawing of subdivision scheme five in the utility model. DETAILED DESCRIPTION

[0014] As Figure 1As shown, the HDPE corrugated pipe material comprises a straight inner pipe 1, a corrugated outer pipe 2, a straight intermediate pipe 3 and a spacer 4, wherein the spacer 4 is spirally arranged on the outer circumferential surface of the straight inner pipe 1, the spacer 4 and the straight inner pipe 1 are jointly embedded in the straight intermediate pipe 3, the space between the inner wall of the straight intermediate pipe 3 and the outer wall of the straight inner pipe 1 is divided into a spiral filling groove 10 by the spacer 4, the filling groove 10 is filled with an epoxy resin body 20 capable of being hardened to form a spiral reinforcing structure, and the corrugated outer pipe 2 is sleeved on the straight intermediate pipe 3.

[0015] On the HDPE corrugated pipe material, not only the corrugated outer pipe 2, the straight intermediate pipe 3 and the spacer 4 can protect and strengthen the straight inner pipe 1, but also the hardened epoxy resin body 20 can spirally strengthen the straight inner pipe 1, so that a high-strength compression-resistant structure can be formed around the straight inner pipe 1. Therefore, the HDPE corrugated pipe material has very high compression resistance, and when used in a high-pressure environment, the probability of excessive shrinkage deformation and rupture of the straight inner pipe 1 can be greatly reduced, and the HDPE corrugated pipe material also has very good use performance when used in a high-pressure environment. The HDPE corrugated pipe material is particularly suitable for use in a high-pressure environment and has very high reliability and applicability.

[0016] The straight inner pipe 1, the corrugated outer pipe 2 and the straight intermediate pipe 3 are all pipe bodies made of HDPE material, and the epoxy resin body 20 can be filled in a factory or on a construction site. Specifically, when filling, liquid epoxy resin can be filled into the filling groove 10 through a liquid filling pump at one port of the filling groove 10, and air in the filling groove 10 can be pumped out through an air pump at the other port of the filling groove 10, so that the epoxy resin can be smoothly, stably and fully filled into the filling groove 10, thereby stably filling the epoxy resin body 20 capable of being hardened to form a spiral reinforcing structure in the filling groove 10. The epoxy resin body 20 is filled in a liquid state, and after solidification, the hardened epoxy resin body 20 can be obtained. The hardened epoxy resin body 20 has higher structural strength relative to the pipe body made of HDPE material, which can achieve the purpose of enhancing compression resistance. In this way, the demand for the HDPE corrugated pipe material can be met.

[0017] The HDPE corrugated pipe material can be applied in water supply and drainage and cable laying. When the HDPE corrugated pipe material is applied in water supply and drainage, not only can the water flow be smooth and stable, but also water leakage can be avoided. When the HDPE corrugated pipe material is applied in cable laying, it can reliably protect the cable for a long time and stably, which not only can reduce the probability of damage, but also can improve the safety of power transmission. The HDPE corrugated pipe material can be applied in a high-pressure environment to solve many user troubles.

[0018] On the basis of the foregoing structure, the utility model gives five kinds of subdivision scheme, they are respectively:

[0019] The first type, such as Figure 1 As shown, the separator 4 is a steel pipe strip. This not only gives the separator 4 high structural strength and durability, but also allows for control of the amount of raw materials used in the separator 4 when a thick epoxy resin body 20 needs to be manufactured. This helps to control the overall weight and cost, thereby further improving the applicability of the HDPE corrugated pipe.

[0020] The second type, such as Figure 2 As shown, the isolation strip 4 has an inner connecting protrusion 41 on the outer wall facing the straight inner tube 1, with the length direction of the inner connecting protrusion 41 being the same as the length direction of the isolation strip 4, and the inner connecting protrusion 41 being embedded in the outer wall of the straight inner tube 1; the isolation strip 4 has an outer connecting protrusion 42 on the outer wall facing the straight intermediate tube 3, with the length direction of the outer connecting protrusion 42 being the same as the length direction of the isolation strip 4, and the outer connecting protrusion 42 being embedded in the inner wall of the straight intermediate tube 3. The arrangement of the inner connecting protrusion 41 and the outer connecting protrusion 42 not only effectively enhances the structural strength of the isolation strip 4, but also improves the connection strength between the isolation strip 4 and the straight inner tube 1 and the straight intermediate tube 3, and facilitates the formation of a more stable and reliable spiral filling groove 10, thereby making the filling of the epoxy resin body 20 smoother and more stable, and further facilitating the formation of a stable and reliable spiral reinforcing structure. This helps to further improve the reliability and applicability of the HDPE corrugated pipe.

[0021] The third type, such as Figure 3 As shown, the isolation strip 4 and the straight inner tube 1 are an integral structure. This not only facilitates manufacturing and molding but also simplifies assembly and enhances structural strength, thereby contributing to further improving the reliability and applicability of the HDPE corrugated pipe.

[0022] The fourth type, such as Figure 4 As shown, the isolation strip 4 and the straight intermediate pipe 3 are an integral structure. This not only facilitates manufacturing and molding but also simplifies assembly and enhances structural strength, thereby contributing to further improving the reliability and applicability of the HDPE corrugated pipe.

[0023] The fifth type, such as Figure 5 As shown, the isolation strip 4, the inner straight pipe 1, and the middle straight pipe 3 are integrated into a single structure. This effectively enhances the overall structural strength, thereby contributing to further improving the reliability and applicability of the HDPE corrugated pipe.

[0024] like Figures 1 to 5As shown, the width K of the filling slot hole 10 is 20mm-30mm; the thickness H of the filling slot hole 10 is 4mm-6mm. This not only can facilitate manufacturing, but also can make the epoxy resin body 20 form stable and reliable spiral-shaped reinforcing structure, so as to make the HDPE corrugated pipe material have very high reliability and applicability.

Claims

1. An HDPE corrugated pipe, characterized by: The utility model relates to a spiral reinforced steel pipe, which comprises a straight inner pipe (1), a corrugated outer pipe (2), a straight middle pipe (3) and a separation strip (4), wherein the separation strip (4) is spirally arranged on the outer circumferential surface of the straight inner pipe (1), the separation strip (4) and the straight inner pipe (1) are jointly embedded in the straight middle pipe (3), the space between the inner wall of the straight middle pipe (3) and the outer wall of the straight inner pipe (1) is divided into spiral filling grooves (10) by the separation strip (4), the filling grooves (10) are filled with epoxy resin bodies (20) capable of being hardened to form a spiral reinforcing structure, and the corrugated outer pipe (2) is sleeved on the straight middle pipe (3).

2. The HDPE corrugated pipe of claim 1, wherein: The separation strip (4) is a steel pipe strip.

3. The HDPE corrugated pipe of claim 2, wherein: The separation strip (4) is provided with an inner connecting convex strip (41) on the outer wall of the straight inner pipe (1), the length direction of the inner connecting convex strip (41) is the same as the length direction of the separation strip (4), and the inner connecting convex strip (41) is embedded on the outer wall of the straight inner pipe (1); the separation strip (4) is provided with an outer connecting convex strip (42) on the outer wall of the straight middle pipe (3), the length direction of the outer connecting convex strip (42) is the same as the length direction of the separation strip (4), and the outer connecting convex strip (42) is embedded on the inner wall of the straight middle pipe (3).

4. The HDPE corrugated pipe of claim 1, wherein: The separation strip (4) and the straight inner pipe (1) are an integral structure.

5. The HDPE corrugated pipe of claim 1, wherein: The separation strip (4) and the straight middle pipe (3) are an integral structure.

6. The HDPE corrugated pipe of claim 1, wherein: The separation strip (4), the straight inner pipe (1) and the straight middle pipe (3) are an integral structure.

7. The HDPE corrugated pipe according to any one of claims 1 to 6, characterized in that: The width K of the filling groove (10) is 20mm-30mm, and the thickness H of the filling groove (10) is 4mm-6mm.

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