High-strength HDPE (high-density polyethylene) double-wall corrugated pipe

Abstract

The high-strength HDPE double-wall corrugated pipe comprises an HDPE inner pipe, a spiral reinforcing rib is fixedly installed on the outer side of the outer ring face of the HDPE inner pipe, an HDPE outer pipe is fixedly installed on the outer side of the spiral reinforcing rib, a plurality of anti-bending rods are fixedly installed on a pipe body of the HDPE outer pipe at intervals in the circumferential direction, and the anti-bending rods are fixedly installed on the pipe body of the HDPE outer pipe. A protection barrel is fixedly installed on the outer side of the outer ring face of the HDPE outer pipe, a plurality of annular protruding blocks are fixed to the outer ring face of the protection barrel at intervals in the vertical direction, and a plurality of positioning blocks are fixed to the outer ring faces of the annular protruding blocks at intervals in the circumferential direction, so that in the using process, the anti-extrusion strength of the HDPE double-wall corrugated pipe can be guaranteed, and the service life of the HDPE double-wall corrugated pipe is prolonged. It is conveniently guaranteed that the HDPE double-wall corrugated pipe can meet some complex engineering environments with high requirements for the pressure resistance and impact resistance of the pipe, and the HDPE double-wall corrugated pipe can be used easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe material, specifically a high strength HDPE double -walled corrugated pipe material. BACKGROUND

[0002] Pipe material is tubular material for conveying fluid, gas or as structural support and the like, HDPE is a kind of crystallinity, non-polar thermoplastic resin, HDPE has outstanding chemical corrosion resistance, to most acid, alkali, salt solution and organic solvent all have very strong resistance.

[0003] HDPE pipe material is high-density polyethylene pipe material, HDPE pipe material relies on own superior performance, plays an important role in numerous fields, is the ideal material for manufacturing high-performance pipe material, HDPE double -walled corrugated pipe material with its light weight, corrosion resistance, water flow resistance small advantage, in drainage, drainage and other fields are widely used.

[0004] But the existing HDPE double -walled corrugated pipe material uses, with the increasing demand of engineering construction to pipe material performance, traditional HDPE double -walled corrugated pipe material gradually exposes the deficiency in strength, it is difficult to meet some complex engineering environment of higher requirements to pipe material compression resistance, impact resistance, it is not conducive to the use of HDPE double -walled corrugated pipe material.

[0005] Therefore, we propose a kind of high strength HDPE double -walled corrugated pipe material. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a kind of high strength HDPE double -walled corrugated pipe material to solve the problems in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of high strength HDPE double -walled corrugated pipe material, including HDPE inner tube, the outer side of the outer ring surface of the HDPE inner tube is fixedly installed with spiral reinforcing rib, the outer side of the spiral reinforcing rib is fixedly installed with HDPE outer tube, the pipe body of the HDPE outer tube is fixedly installed with several anti-bending rods along the circumferential direction, the outer side of the outer ring surface of the HDPE outer tube is fixedly installed with protective cylinder, several annular bosses are fixedly installed on the outer ring surface of the protective cylinder along the vertical direction, the outer ring surface of the annular boss is fixedly installed with several positioning blocks along the circumferential direction.

[0009] As a further scheme of the utility model: the inner side ring surface of the spiral reinforcing rib and the corresponding position on the outer ring surface of the HDPE inner tube are in the state of matching and adhering, the outer side ring surface of the spiral reinforcing rib and the corresponding position on the inner ring surface of the HDPE outer tube are in the state of matching and adhering.

[0010] By adopting the technical scheme, the spiral reinforcing rib is arranged, which is helpful to fix and limit the HDPE outer pipe and the HDPE inner pipe.

[0011] As a further scheme of the utility model, a plurality of matched retaining holes are arranged on the pipe body of the HDPE outer pipe at intervals between the anti-bending rods.

[0012] By adopting the technical scheme, the anti-bending rod is arranged, which can support the HDPE outer pipe and prevent the HDPE outer pipe from being bent and deformed.

[0013] As a further scheme of the utility model, the HDPE inner pipe is in a vertical state, the inner ring surface of the HDPE inner pipe is in a smooth state, the HDPE outer pipe is in a vertical state, and the retaining holes penetrate the upper surface and the lower surface of the corresponding position of the HDPE outer pipe.

[0014] By adopting the technical scheme, the retaining hole is arranged, which is helpful to limit the anti-bending rod and the HDPE outer pipe.

[0015] As a further scheme of the utility model, the anti-bending rods are in a vertical state, and the outer ring surface of the HDPE outer pipe and the inner ring surface of the protective cylinder are in a matched and fitted state.

[0016] By adopting the technical scheme, the protective cylinder is arranged, which can protect the outer side of the HDPE outer pipe.

[0017] As a further scheme of the utility model, the annular protrusions are fixedly sleeved on the corresponding positions outside the protective cylinder, and the inner ring surface of the annular protrusion and the corresponding position on the outer ring surface of the protective cylinder are in a matched and fitted state.

[0018] By adopting the technical scheme, the protective cylinder is arranged, which can fix and limit the annular protrusion.

[0019] As a further scheme of the utility model, the positioning blocks are in a vertical state, and a plurality of retaining grooves are arranged on the positioning blocks at intervals corresponding to the annular protrusions.

[0020] By adopting the technical scheme, the positioning block is arranged, which is helpful to position the pipe and the buried ground.

[0021] As a further scheme of the utility model, the retaining grooves on the positioning blocks and the corresponding positions on the outer ring surface of the corresponding annular protrusions are in a matched and fitted state.

[0022] By adopting the technical scheme, the setting of the accommodation groove facilitates limiting between the annular protrusion and the positioning block.

[0023] Compared with the prior art, the utility model has the advantages that:

[0024] In the utility model, the anti-bending rod and the spiral reinforcing rib can support the HDPE outer pipe, avoid bending deformation of the HDPE outer pipe, help normal use of the HDPE outer pipe, avoid deformation of the HDPE inner pipe during use, ensure the extrusion resistance of the HDPE double-wall corrugated pipe during use, facilitate meeting the requirements of some complex engineering environments on pipe resistance and impact resistance, and help use of the HDPE double-wall corrugated pipe.

[0025] 2、In the utility model, the positioning block can position the HDPE double-wall corrugated pipe and the buried ground, avoid rotation or twisting of the HDPE double-wall corrugated pipe, help stable use of the HDPE double-wall corrugated pipe, the annular protrusion can limit the HDPE double-wall corrugated pipe and the buried ground, avoid displacement of the HDPE double-wall corrugated pipe, and facilitate use of the HDPE double-wall corrugated pipe. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is a structural schematic view of the utility model;

[0027] Fig. 2 It is a structural schematic view of the spiral reinforcing rib of the utility model;

[0028] Fig. 3 It is a structural schematic view of the annular protrusion of the utility model;

[0029] Fig. 4 It is a structural schematic view of the positioning block of the utility model.

[0030] In the drawing: 1, HDPE inner pipe; 2, HDPE outer pipe; 3, spiral reinforcing rib; 4, accommodation hole; 5, anti-bending rod; 6, protection cylinder; 7, annular protrusion; 8, positioning block; 9, accommodation groove. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Referring to Figs. 1-4 The utility model discloses an embodiment of a kind of high-strength HDPE double-wall corrugated pipe, including HDPE inner tube 1, the outer side of the outer ring surface of HDPE inner tube 1 is fixedly installed with helical reinforcing rib 3, the outer side of helical reinforcing rib 3 is fixedly installed with HDPE outer tube 2, the pipe body of HDPE outer tube 2 is fixedly installed with several anti-bending rods 5 along the circumference direction interval, the outer ring surface of HDPE outer tube 2 is fixedly installed with protective cylinder 6, several annular bosses 7 are fixed along vertical direction interval on the outer ring surface of protective cylinder 6, several positioning blocks 8 are fixed along the circumference direction interval in common on the outer ring surface of annular boss 7, HDPE outer tube 2 can be supported by anti-bending rod 5 and helical reinforcing rib 3, HDPE outer tube 2 can be avoided to produce bending deformation, it is helpful to normally use HDPE outer tube 2, and HDPE inner tube 1 can be avoided to produce deformation when using, when using, it can guarantee the extrusion strength of this HDPE double-wall corrugated pipe, it is convenient to guarantee that the HDPE double-wall corrugated pipe can satisfy some complex engineering environment of pipe material pressure resistance, impact resistance requirement higher, it is helpful to use the HDPE double-wall corrugated pipe.

[0033] Among them, the inner side ring surface of helical reinforcing rib 3 and the corresponding position on the outer ring surface of HDPE inner tube 1 are in matching state, the outer ring surface of helical reinforcing rib 3 and the corresponding position on the inner ring surface of HDPE outer tube 2 are in matching state, and helical reinforcing rib 3 helps to fix and limit between HDPE outer tube 2 and HDPE inner tube 1;Several matching retention holes 4 are provided on the pipe body of HDPE outer tube 2 at intervals corresponding to anti-bending rod 5, the outer ring surface of anti-bending rod 5 is in matching state with the inner ring surface of corresponding retention hole 4 on HDPE outer tube 2, and anti-bending rod 5 can support HDPE outer tube 2 to prevent HDPE outer tube 2 from bending and deforming.

[0034] HDPE inner tube 1 is in vertical state, the inner ring surface of HDPE inner tube 1 is in smooth state, HDPE outer tube 2 is in vertical state, retention hole 4 penetrates the upper surface and lower surface of corresponding position on HDPE outer tube 2, and retention hole 4 is convenient for limiting between anti-bending rod 5 and HDPE outer tube 2;Anti-bending rod 5 is in vertical state, the outer ring surface of HDPE outer tube 2 and the inner ring surface of protective cylinder 6 are in matching state, and protective cylinder 6 can protect the outer side of HDPE outer tube 2;Annular boss 7 is fixedly sleeved at corresponding position outside protective cylinder 6, the inner ring surface of annular boss 7 and the corresponding position on the outer ring surface of protective cylinder 6 are in matching state, and protective cylinder 6 can fix and limit annular boss 7.

[0035] The positioning blocks 8 are in vertical state, and a plurality of retaining grooves 9 are arranged on the positioning blocks 8 and are spaced apart from the corresponding annular protrusions 7, and the positioning blocks 8 are helpful for positioning the pipe and the ground buried by the outside; the retaining grooves 9 on the positioning blocks 8 are in matched state with the corresponding positions on the outer ring surface of the corresponding annular protrusions 7, and the retaining grooves 9 are convenient for limiting the annular protrusions 7 and the positioning blocks 8.

[0036] The working principle of the utility model is: in the process of using, the two ends of the HDPE inner pipe 1 and the HDPE outer pipe 2 are installed between the pipelines needing to be connected with the outside, and the HDPE double-wall corrugated pipe is further buried in the ground needing to be buried and assembled, when the HDPE double-wall corrugated pipe is used, the fluid needing to be conveyed is conveyed through the inner side of the HDPE inner pipe 1, the HDPE double-wall corrugated pipe can be positioned between the pipe and the ground buried by the outside through the positioning blocks 8, the HDPE double-wall corrugated pipe can be prevented from rotating or twisting, and the HDPE double-wall corrugated pipe can be stably used.

[0037] The HDPE double-wall corrugated pipe can be limited between the pipe and the ground buried by the outside through the annular protrusions 7, the HDPE double-wall corrugated pipe can be prevented from displacement, the HDPE double-wall corrugated pipe can be used, the annular protrusions 7 and the positioning blocks 8 can be limited through the retaining grooves 9, the positioning blocks 8 can be stably used, the outer side of the HDPE outer pipe 2 can be protected through the protection cylinder 6, the HDPE outer pipe 2 can be normally used, the HDPE outer pipe 2 can be supported through the anti-bending rod 5, the retaining hole 4 and the spiral reinforcing rib 3 when the ground buried by the outside is extruded, the HDPE outer pipe 2 can be prevented from bending and deforming, the HDPE outer pipe 2 can be normally used, the HDPE inner pipe 1 can be prevented from deforming when used, the HDPE inner pipe 1 and the HDPE outer pipe 2 can be normally used, and the use strength of the HDPE double-wall corrugated pipe can be ensured.

[0038] In the process of using, the extrusion resistance of the HDPE double-wall corrugated pipe can be ensured, the HDPE double-wall corrugated pipe can meet the requirements of some complex engineering environments with high requirements on pipe resistance and impact resistance, and the HDPE double-wall corrugated pipe can be used.

[0039] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high strength HDPE double wall corrugated pipe comprising an inner pipe (1) of HDPE, characterized in that: The outer side of the outer ring surface of the HDPE inner tube (1) is fixedly installed with a spiral reinforcing rib (3), the outer side of the spiral reinforcing rib (3) is fixedly installed with an HDPE outer tube (2), a plurality of anti-bending rods (5) are fixedly installed on the pipe body of the HDPE outer tube (2) in the circumferential direction, the outer ring surface of the HDPE outer tube (2) is fixedly installed with a protective cylinder (6), a plurality of annular protrusions (7) are fixedly installed on the outer ring surface of the protective cylinder (6) in the vertical direction, and the outer ring surface of the annular protrusion (7) is fixedly installed with a plurality of positioning blocks (8) in the circumferential direction.

2. A high strength HDPE double wall corrugated pipe according to claim 1, characterized in that: The inner side of the spiral reinforcing rib (3) is in a matched and fitted state with the corresponding position on the outer ring surface of the HDPE inner tube (1), and the outer side of the spiral reinforcing rib (3) is in a matched and fitted state with the corresponding position on the inner ring surface of the HDPE outer tube (2).

3. A high strength HDPE double wall corrugated pipe according to claim 2, characterized in that: A plurality of matched retention holes (4) are provided on the pipe body of the HDPE outer tube (2) at intervals corresponding to the anti-bending rods (5), and the outer ring surface of the anti-bending rod (5) is in a matched and fitted state with the inner ring surface of the corresponding retention hole (4) on the HDPE outer tube (2).

4. A high strength HDPE twin wall corrugated pipe according to claim 3, characterised in that: The HDPE inner tube (1) is in a vertical state, the inner ring surface of the HDPE inner tube (1) is in a smooth state, the HDPE outer tube (2) is in a vertical state, and the retention hole (4) penetrates the upper surface and the lower surface of the corresponding position on the HDPE outer tube (2).

5. A high strength HDPE twin wall corrugated pipe according to claim 4, characterised in that: The anti-bending rod (5) is in a vertical state, and the outer ring surface of the HDPE outer tube (2) is in a matched and fitted state with the inner ring surface of the protective cylinder (6).

6. A high strength HDPE twin wall corrugated pipe according to claim 5, characterised in that: The annular protrusion (7) is fixedly sleeved on the corresponding position outside the protective cylinder (6), and the inner ring surface of the annular protrusion (7) is in a matched and fitted state with the corresponding position on the outer ring surface of the protective cylinder (6).

7. A high strength HDPE twin wall corrugated pipe according to claim 6, characterized in that: The positioning block (8) is in a vertical state, and a plurality of retention grooves (9) are provided on the positioning block (8) at intervals corresponding to the annular protrusion (7).

8. A high strength HDPE twin wall corrugated pipe according to claim 7, characterized in that: The retention groove (9) on the positioning block (8) is in a matched and fitted state with the corresponding position on the outer ring surface of the corresponding annular protrusion (7).

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