High-strength HDPE double-wall corrugated pipe

Abstract

The utility model relates to the technical field of double-wall corrugated pipes, in particular to a high-strength HDPE double-wall corrugated pipe which comprises a pipe body, a rotating groove is fixedly connected to the circumferential face of the left side of the pipe body, a second connector is rotationally connected into the rotating groove, a first connector is fixedly connected to the right side of the pipe body, and the first connector is matched with the second connector. The circumferential surface of the pipe body is fixedly connected with a corrugated section. By arranging the rotating groove, the first connector and the second connector, when pipelines are spliced, the first connector is aligned with the second connector, and the second connector rotates in the rotating groove, so that the second connector and the first connector can be conveniently connected together in a threaded mode, and when two pipelines are spliced, the second connector can be conveniently connected with the first connector in a threaded mode. And the two pipelines can be conveniently connected together in a threaded manner without rotating the whole pipeline, so that the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wall corrugated pipes, in particular to a high-strength HDPE double-wall corrugated pipe. Background Art

[0002] High-density polyethylene (HDPE) double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall. The outer wall of the double-wall corrugated pipe is in an annular corrugated structure, which greatly enhances the ring stiffness of the pipe, thereby enhancing the resistance of the pipe to soil load. Therefore, in terms of performance, the HDPE double-wall corrugated pipe has obvious advantages compared with other pipes. Due to its excellent performance and relatively economical cost, the HDPE double-wall corrugated pipe has been greatly promoted and applied.

[0003] When applying for the present utility model, the applicant, after retrieval, found that a Chinese patent disclosed a "high-strength HDPE double-wall corrugated pipe" with an application number of "202322112951.5". This patent mainly includes an inner pipe body. A plurality of transverse reinforcing strips are arranged at equal intervals along the transverse direction on the outer part of the inner pipe body. An anti-deformation chamber is arranged inside the transverse reinforcing strip, and an I-shaped reinforcing rib is arranged inside the anti-deformation chamber; a plurality of outer corrugated layers are constructed at equal intervals along the vertical direction on the outer part of the inner pipe body. A plurality of anti-extrusion chambers are arranged in a circular pattern inside the outer corrugated layer, and a buffer column is arranged inside the anti-extrusion chamber; pipe connection mechanisms are also arranged at both ends of the inner pipe body. By adding transverse reinforcing strips to the outside of the double-wall corrugated pipe, arranging I-shaped reinforcing ribs inside the transverse reinforcing strips, and arranging buffer columns inside the outer corrugated layer to increase the anti-extrusion and deformation resistance of the pipe, and forming multiple protections for the inner pipe body through an anti-extrusion layer made of wire mesh and the above structure, the strength and anti-extrusion and deformation ability of the double-wall corrugated pipe are improved, and the purpose of extending the service life of the double-wall corrugated pipe is achieved.

[0004] Although the above patent improves the strength and anti-extrusion and deformation ability of the double-wall corrugated pipe, it is rather troublesome during pipe connection. The entire pipe needs to be rotated to conveniently thread-connect two pipes together, which increases the labor intensity of workers. Therefore, it is necessary to design a high-strength HDPE double-wall corrugated pipe. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the disadvantages existing in the prior art, and to propose a high-strength HDPE double-wall corrugated pipe.

[0006] To achieve the above purpose, the present utility model adopts the following technical solution: A high-strength HDPE double-wall corrugated pipe includes a pipe body. A rotating groove is fixedly connected to the circumferential surface on the left side of the pipe body. A second connector is rotatably connected inside the rotating groove. A first connector is fixedly connected to the right side of the pipe body. The first connector cooperates with the second connector; a corrugated section is fixedly connected to the circumferential surface of the pipe body.

[0007] As a further description of the above technical solution:

[0008] The pipe body is composed of an anti-corrosion coating, an inner straight pipe, and an anti-extrusion layer. An anti-extrusion layer is provided on the outer circumferential surface of the inner straight pipe, and an anti-corrosion coating is provided on the inner circumferential surface of the inner straight pipe.

[0009] As a further description of the above technical solution:

[0010] External threads are provided on the outside of the first connector, and internal threads are provided on the inner wall of the second connector.

[0011] As a further description of the above technical solution:

[0012] A wear-resistant layer made of PTFE is provided on the outer layer of the corrugated section.

[0013] As a further description of the above technical solution:

[0014] Reinforcing ribs are fixedly connected to the circumferential surface of the pipe body. A plurality of reinforcing ribs are provided and are distributed in a circumferential array. The reinforcing ribs penetrate through the corrugated section.

[0015] As a further description of the above technical solution:

[0016] The end face shape of the rotating groove is U-shaped.

[0017] The utility model has the following beneficial effects:

[0018] Compared with the prior art, for this high-strength HDPE double-wall corrugated pipe, by providing a rotating groove, a first connector, and a second connector, when splicing pipes, align the first connector with the second connector. Since the second connector rotates inside the rotating groove, it is convenient for the second connector to be threadedly connected to the first connector, so that when splicing two pipes, it is not necessary to rotate the entire pipe to facilitate the threaded connection of the two pipes, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall structural schematic diagram of a high-strength HDPE double-wall corrugated pipe proposed by the utility model;

[0020] Figure 2 is an internal structural schematic diagram of a high-strength HDPE double-wall corrugated pipe proposed by the utility model;

[0021] Figure 3 is a Figure 2 partial enlarged view of part A of a high-strength HDPE double-wall corrugated pipe proposed by the utility model.

[0022] Legend description:

[0023] 1. Pipe body; 101. Anticorrosion coating; 102. Inner straight pipe; 103. Anti-extrusion layer; 2. Reinforcing rib; 3. Corrugated section; 4. First connector; 5. Second connector; 6. Rotation groove. Detailed implementation mode

[0024] The present utility model will be further described below in conjunction with the attached drawings and specific embodiments to help understand the content of the present utility model. The methods used in the present utility model are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0025] Refer to Figures 1-3 , a high-strength HDPE double-wall corrugated pipe provided by the present utility model includes a pipe body 1. A rotation groove 6 is fixedly connected to the left circumferential surface of the pipe body 1. A second connector 5 is rotatably connected inside the rotation groove 6. A first connector 4 is fixedly connected to the right side of the pipe body 1. The first connector 4 cooperates with the second connector 5; a corrugated section 3 is fixedly connected to the circumferential surface of the pipe body 1; an external thread is provided on the outside of the first connector 4, and an internal thread is provided on the inner wall of the second connector 5.

[0026] Specifically, when splicing the pipes, align the first connector 4 with the second connector 5. Since the second connector 5 rotates inside the rotation groove 6, it is convenient for the second connector 5 to be threadedly connected with the first connector 4, so that when splicing two pipes, it is not necessary to rotate the entire pipe to conveniently thread-connect the two pipes together, thereby reducing the labor intensity of workers.

[0027] Furthermore, the pipe body 1 is composed of an anticorrosion coating 101, an inner straight pipe 102 and an anti-extrusion layer 103. An anti-extrusion layer 103 is provided on the outer circumferential surface of the inner straight pipe 102, and an anticorrosion coating 101 is provided on the inner circumferential surface of the inner straight pipe 102. During operation, since the inner wall of the pipe body 1 is provided with the anticorrosion coating 101, the anticorrosion performance of the pipe body 1 can be improved; by providing the anti-extrusion layer 103, the anti-extrusion deformation ability of the double-wall corrugated pipe is improved.

[0028] A wear-resistant layer made of PTFE is provided on the outer layer of the corrugated section 3. During operation, since the outer layer of the corrugated section 3 is provided with a wear-resistant layer made of PTFE, the wear-resistant performance of the corrugated section 3 can be improved.

[0029] Reinforcing ribs 2 are fixedly connected to the circumferential surface of the pipe body 1. There are multiple reinforcing ribs 2, and they are arranged in a circumferential array. The reinforcing ribs 2 penetrate through the corrugated section 3. During operation, by providing the reinforcing ribs 2, the strength of the double-wall corrugated pipe can be improved under the action of the reinforcing ribs 2.

[0030] The end face shape of the rotation groove 6 is in a U shape. During operation, since the end face shape of the rotation groove 6 is in a U shape, the second connector 5 can be effectively prevented from disengaging from the rotation groove 6.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] However, the above are only specific embodiments of the present utility model, and the scope of implementation of the present utility model cannot be limited thereby. Therefore, the replacement of equivalent components or equivalent changes and modifications made according to the scope of patent protection of the present utility model should still fall within the scope covered by the claims of the present utility model.

Claims

1. A high-strength HDPE double-wall corrugated pipe, comprising a pipe body (1), characterized in that: A rotating groove (6) is fixedly connected to the left circumferential surface of the pipe body (1). A second connector (5) is rotatably connected inside the rotating groove (6). A first connector (4) is fixedly connected to the right side of the pipe body (1). The first connector (4) cooperates with the second connector (5). A corrugated section (3) is fixedly connected to the circumferential surface of the pipe body (1).

2. The high-strength HDPE double-wall corrugated pipe according to claim 1, characterized in that: The pipe body (1) is composed of an anti-corrosion coating (101), an inner straight pipe (102), and an anti-extrusion layer (103). The anti-extrusion layer (103) is arranged on the outer circumferential surface of the inner straight pipe (102). The anti-corrosion coating (101) is arranged on the inner circumferential surface of the inner straight pipe (102).

3. A high-strength HDPE double-wall corrugated pipe according to claim 1, characterized in that: External threads are provided on the outside of the first connector (4). Internal threads are provided on the inner wall of the second connector (5).

4. A high-strength HDPE double-wall corrugated pipe according to claim 1, characterized in that: A wear-resistant layer made of PTFE is provided on the outer layer of the corrugated section (3).

5. A high-strength HDPE double-wall corrugated pipe according to claim 1, characterized in that: Reinforcing ribs (2) are fixedly connected to the circumferential surface of the pipe body (1). A plurality of reinforcing ribs (2) are provided and are distributed in a circumferential array. The reinforcing ribs (2) penetrate through the corrugated section (3).

6. A high-strength HDPE double-wall corrugated pipe according to claim 1, characterized in that: The end face of the rotating groove (6) is in a U-shaped configuration.

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