Composite winding structure wall pipe

Abstract

The utility model discloses a composite winding structure wall pipe which comprises a material belt, the material belt is spirally wound for multiple circles, and the adjacent circles of material belt are bonded through a first adhesive layer to form a pipe body. The pipe body is provided with a spiral groove along the outer side of the middle part of the material belt; the winding structure wall pipe further comprises a winding pipe, the winding pipe comprises a winding pipe body, an inner support and a second adhesive layer, the winding pipe is spirally bonded to the spiral groove along the spiral groove, and the inner support is arranged in the winding pipe body and supports the inner wall of the winding pipe body. According to the composite winding structure wall pipe, the ring stiffness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to winding structure wall pipe technical field especially relates to a composite winding structure wall pipe. BACKGROUND

[0002] The existing B type winding structure wall pipe such as the patent shown in application number CN202020676474.9 includes the pipe body and the winding pipe spirally wound on the pipe body, the cross section of the winding pipe of the above existing B type pipe is basically circular, lacks support inside, in actual application, the winding pipe is easy to collapse inward after bearing, in addition, the pipe wall of the pipe body of the existing B type pipe is solid structure, the sectional moment of inertia is small, and the overall ring stiffness of the existing B type pipe needs to be improved. SUMMARY

[0003] The utility model discloses in order to solve the defect that the ring stiffness of the existing B type pipe needs to be improved, proposes a composite winding structure wall pipe, improves the ring stiffness.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A composite winding structure wall pipe, including the material belt, the material belt spirally winds multiple turns, and the first adhesive layer is bonded between the adjacent turns of the material belt to form a pipe body; the left and right sides of the material belt are provided with cavities, and a spiral groove is arranged on the outer side of the middle part of the material belt; the winding structure wall pipe further comprises a winding pipe, the winding pipe comprises a winding pipe body, an inner support and a second adhesive layer, the winding pipe is spirally bonded on the spiral groove along the spiral groove, the inner support is arranged in the winding pipe body and supports the inner wall of the winding pipe body.

[0006] Through the above-mentioned setting, first, the inner support is arranged in the winding pipe, the winding pipe is not easy to collapse inward after bearing pressure, second, the pipe body is wound by the material belt with cavities, the moment of inertia is larger, and the ring stiffness of the winding structure wall pipe is improved; third, the spiral groove is arranged on the outer side of the middle part of the material belt without cavities, and the winding pipe is not easy to crush the material belt when winding.

[0007] Further, the distance between the cavities is w1, the width of the spiral groove is w2, and 50% < w2 / w1 < 80%.

[0008] Further, the outer diameter of the winding pipe is d, and 20% < w2 / d < 40%.

[0009] Further, the distance between the side wall of the cavity far from the middle part of the material belt and the first adhesive layer is w3, the axial distance between the side wall of the cavity close to the middle part of the material belt and the spiral groove is w4, and w4 >= w3.

[0010] Further, the cross section of the inner support is cross-shaped.

[0011] Further, the material of the winding pipe body and the inner support is PP or PE or ABS. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A schematic view of a winding structure wall pipe for an example.

[0013] Figure 2 A partial sectional view of a winding structure wall pipe for an example.

[0014] Figure 3 An enlarged view of A of Figure 2 DETAILED DESCRIPTION

[0015] The technical scheme of the present application will be further specifically explained below by examples in combination with the drawings.

[0016] As shown in Figures 1 to 3 A composite winding structure wall pipe comprises a material belt 2, the material belt 2 is spirally wound for multiple turns, and the adjacent turns of the material belt 2 are bonded by a first adhesive layer 3 to form a pipe body 100; the material belt 2 is provided with a cavity 4 on the left and right sides, and the pipe body is provided with a spiral groove 5 on the outer side of the middle part of the material belt 2; the winding structure wall pipe further comprises a winding pipe 200, the winding pipe comprises a winding pipe body 6, an inner support 7 and a second adhesive layer 8, the winding pipe is spirally bonded on the spiral groove 5 along the spiral groove 5, the inner support 7 is arranged in the winding pipe body 6 to support the inner wall of the winding pipe body 6.

[0017] Through the above arrangement, first, the inner support 7 is arranged in the winding pipe, the winding pipe is not easy to collapse inward after bearing pressure, second, the pipe body is wound by the material belt 2 with the cavity 4, the moment of inertia is larger, and the ring stiffness of the winding structure wall pipe is improved; third, the spiral groove 5 is arranged on the outer side of the middle part of the material belt 2 without the cavity 4, and the winding pipe is not easy to crush the material belt 2 when winding.

[0018] ​The preparation of the pipe body of the present application can refer to the existing A type winding structure wall pipe, and will not be repeated; the material belt 2 is made of HDPE material, which has the advantages of high strength and non-toxicity, and a rectangular cavity 4 is arranged on the left and right sides of the material belt 2; the cross section of the material belt 2 is in the shape of a sun, and compared with a solid pipe with the same extrusion amount, the moment of inertia of the cross section is larger, and the ring stiffness is also larger; the first adhesive layer 3 is made of polyethylene special adhesive; the winding pipe body 6 and the inner support 7 are integrally extruded from HDPE material, and the winding pipe body 6 is coated with a second adhesive layer 8 after extrusion; the second adhesive layer 8 is made of polyethylene special adhesive; the winding pipe body 6 is wound on the outer side of the pipe body along the spiral groove 5; the groove bottom of the spiral groove 5 is in the shape of a circular arc; when the winding pipe is wound on the pipe body, the winding pipe is attached to the spiral groove 5, so that the winding pipe has a large contact area with the pipe body, and the winding pipe is not easy to fall off from the pipe body; the middle part of the material belt 2 is free of the cavity 4, and the spiral groove 5 is arranged on the outer side of the middle part of the material belt 2; when the winding pipe is wound on the spiral groove 5, the winding pipe is not easy to crush the material belt 2; the setting of the winding pipe further increases the moment of inertia and the ring stiffness of the cross section of the winding structure wall pipe; the inner support 7 is arranged in the winding pipe, and the inner support 7 supports the inner wall of the winding pipe body 6 after the winding pipe is pressed, so that the winding pipe will not collapse inward. The winding structure wall pipe of the present application combines the winding pipe and the pipe body, which greatly improves the ring stiffness.

[0019] As an implementation manner, the distance between the cavities 4 is w1, the width of the spiral groove 5 is w2, and 50% < w2 / w1 < 80%.

[0020] When w2 / w1 <= 50%, the width of the solid part in the middle part of the material belt 2 is relatively large compared with the width of the spiral groove 5, and the material consumption of the material belt 2 is larger; when w2 / w1 >= 80%, the width of the solid part in the middle part of the material belt 2 is relatively small compared with the width of the spiral groove 5, and after the winding pipe extrudes the material belt 2 during winding, the cavities 4 on the left and right sides of the spiral groove 5 will not be deformed.

[0021] As an implementation manner, the outer diameter of the winding pipe is d, and 20% < w2 / d < 40%.

[0022] When w2 / d <= 20%, the spiral groove 5 is relatively small compared with the outer diameter of the winding pipe, the contact area between the winding pipe and the pipe body is relatively small, and the winding pipe is easy to fall off; when w2 / d >= 40%, the spiral groove 5 is relatively large compared with the outer diameter of the winding pipe, at this time, the central angle of the spiral groove 5 is relatively large, the depth of the spiral groove 5 is relatively large, and when the winding pipe is bonded on the spiral groove 5, the height of the winding pipe protruding outside the pipe body is small, which will affect the overall ring stiffness. Therefore, 20% < w2 / d < 40%, which takes into account the bonding strength of the winding pipe and the ring stiffness of the winding structure wall pipe.

[0023] As an implementation manner, the distance between the cavity 4 far from the side wall of the middle part of the material belt 2 and the first adhesive layer 3 is w3, the axial distance between the cavity 4 close to the side wall of the middle part of the material belt 2 and the spiral groove 5 is w4, and w4 >= w3.

[0024] As an implementation manner, the cross section of the inner support 7 is cross-shaped.

[0025] The inner support 7 of the application supports the upper, lower, left and right inner walls of the winding pipe body 6, and the winding pipe body 6 is not easy to collapse after being pressed.

[0026] As an implementation manner, the material of the winding pipe body 6 and the inner support 7 is PP or PE or ABS.

[0027] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A composite wound structure wall pipe, characterized by, The application relates to a spiral-wound structure wall pipe, which comprises a material belt, wherein the material belt is spirally wound for multiple turns, and adjacent turns of the material belt are bonded by a first adhesive layer to form a pipe body; cavities are arranged on the left and right sides of the material belt; a spiral groove is arranged on the outer side of the middle part of the material belt; the spiral-wound structure wall pipe further comprises a winding pipe, which comprises a winding pipe body, an inner support and a second adhesive layer; the winding pipe is spirally bonded on the spiral groove along the spiral groove; the inner support is arranged in the winding pipe body and supports the inner wall of the winding pipe body.

2. A composite wound structured wall pipe according to claim 1, wherein The distance between the cavities is w1, the width of the spiral groove is w2, and 50% < w2 / w1 < 80%.

3. A composite wound structured wall pipe according to claim 2, wherein The outer diameter of the winding pipe is d, and 20% < w2 / d < 40%.

4. The composite spool of claim 1 wherein, The distance between the side wall of the cavity far from the middle part of the material belt and the first adhesive layer is w3, the axial distance between the side wall of the cavity close to the middle part of the material belt and the spiral groove is w4, and w4 >= w3.

5. The composite spool as claimed in claim 1, wherein The cross section of the inner support is cross-shaped.

6. The composite spool of claim 1 wherein, The material of the winding pipe body and the inner support is PP or PE or ABS.

Images