Polygonal prism outer rib winding pipe

Abstract

The utility model relates to a polygon prism outer rib winding pipe, which is formed by spirally winding and lapping a strip-shaped body and bonding the strip-shaped body with a covering layer, the body comprises a bottom plate, a first outer rib supporting piece and a second outer rib supporting piece, and the first outer rib supporting piece and the second outer rib supporting piece are respectively and symmetrically arranged at two ends of the bottom plate. A first cavity is formed in the first outer rib supporting piece, a second cavity is formed in the second outer rib supporting piece, one or more protrusions are arranged on the portion, between the first outer rib supporting piece and the second outer rib supporting piece, of the bottom plate, and the bottom plate, the first outer rib supporting piece, the second outer rib supporting piece and the protrusions are integrally formed by extruding plastics through an injection molding machine, so that the surface area of the pipeline is enlarged; the contact area between the outer surface of the pipeline and soil is large, the unit pressure is small, the compressive strength of the pipeline is improved, a pipeline construction foundation is not prone to damage, and the long-term service life of the pipeline is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of drainage pipes, in particular to a multi-prism outer rib winding pipe. Background Art

[0002] At present, most of the pipes used in urban drainage and sewage facilities are HDPE (high-density polyethylene) structural wall pipes. HDPE (high-density polyethylene) guarantees the product molding process and product quality due to its excellent melting and bonding properties. Large-diameter winding pipes are generally made of HDPE (high-density polyethylene) as raw materials to prepare strip profiles, and then the strip profiles are wound and welded to form a kind of pipe. Due to its unique molding process, a small plastic extruder can produce pipes with a diameter of up to 3 meters, which is difficult to achieve with other production processes. This kind of pipe has the advantages of corrosion resistance, light weight, easy installation, large flow rate, and long life (50 years). It can replace pipes made of high-energy consumption materials (cement, cast iron, fiberglass pipes, ceramics, etc.) and is an environmentally friendly green product.

[0003] However, the ring stiffness of HDPE's structural wall pipe is low and its unit meter weight is relatively large. In addition, the plate-strip joints of the structural wall pipe are thin, low in strength, poor in ring flexibility, and delamination occurs. It is also very easy for the plate-strip joints to become detached. There are also some pipe walls that are made of plastic and steel bonded together and wound together. The technical defect is that the expansion and contraction ratios of plastic and steel are different. As a result, such pipes are greatly affected by climate change during use. When the weather gets cold or hot, plastic and steel are easy to separate from each other, which seriously damages the ring stiffness of the pipe. In addition, sealing problems are prone to occur at the overlap between two adjacent plates, which makes it difficult to adapt to municipal projects with high working conditions and long service life requirements. The installed pipelines may also collapse as a result. Utility Model Content

[0004] The utility model aims to provide a multi-prism outer rib wound pipe, aiming to solve the technical problems of low ring stiffness, heavy weight per meter, and easy bursting when the internal pressure of the pipe body is high in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a polyhedral outer rib winding tube, which is formed by spirally winding a long strip of main body and overlapping and bonding it with a covering layer, the main body includes a bottom plate, a first outer rib support member and a second outer rib support member, the first outer rib support member and the second outer rib support member are symmetrically arranged at both ends of the bottom plate, a first cavity is provided in the first outer rib support member, a second cavity is provided in the second outer rib support member, and one or more protrusions are provided on the bottom plate between the first outer rib support member and the second outer rib support member, and the bottom plate, the first outer rib support member, the second outer rib support member and the protrusions are formed as a whole by extrusion of plastic by an injection molding machine.

[0006] Furthermore, a first steel belt and a second steel belt in the shape of long strips are respectively arranged inside the junction between the first outer rib support member and the bottom plate.

[0007] Furthermore, a third steel belt and a fourth steel belt of long strips are respectively arranged inside the joint between the second outer rib support member and the bottom plate.

[0008] Furthermore, the covering layer connects the top of the adjacent first outer rib support member and the top of the adjacent second outer rib support member by hot-melt coating.

[0009] Furthermore, a fifth steel belt is provided at the junction of the top of the adjacent first outer rib support member and the top of the second outer rib support member.

[0010] Furthermore, the covering layer connects the adjacent outer side walls of the first outer rib support member and the outer side walls of the second outer rib support member by hot-melt coating.

[0011] Furthermore, the cross-sections of the first outer rib support member and the second outer rib support member are trapezoidal.

[0012] Furthermore, the main body material is high-density polyethylene or polypropylene.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a multi-prism outer rib winding pipe, which is formed by spirally winding a long strip of main body and overlapping and bonding a covering layer. The first outer rib support and the second outer rib support are symmetrically arranged on the two plates of the bottom plate, respectively. There is one or more protrusions on the bottom plate between the first outer rib support and the second outer rib support, which expands the surface area of ​​the pipe, helps to speed up the heat dissipation during the manufacturing process, and improves the compressive strength of the pipe. Secondly, the outer surface has a large contact area with the soil, the unit pressure is small, it is not easy to damage the construction foundation of the pipe, and the long-term service life of the pipe is guaranteed; at the same time, under the same compressive strength, it overcomes the problem of heavy weight caused by overlapping and bonding multiple sheets in the prior art, saves materials, and facilitates transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic cross-sectional view of a multi-prism outer rib wound tube according to the utility model;

[0016] Figure 2This is a schematic diagram of the structure of a multi-prism outer rib wound tube body of the utility model;

[0017] Figure 3 It is an overall schematic diagram of a multi-prism outer rib wound tube of the utility model.

[0018] Description of labels:

[0019] 1. Polygonal outer rib winding tube; 10. Main body; 11. First outer rib support member;

[0020] 11', second outer rib support member; 12, bottom plate; 13, first steel belt;

[0021] 14, the second steel belt; 13', the third steel belt; 14', the fourth steel belt;

[0022] 15. first cavity; 15'. second cavity; 16. protrusion;

[0023] 20. Covering layer; 21. Fifth steel belt. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 3 As shown, the utility model embodiment is a multi-prism outer rib wrapped tube 1, which is formed by spirally winding a long strip body 10 and overlapping and bonding it with a covering layer 20. The body 10 includes a bottom plate 12, a first outer rib support member 11 and a second outer rib support member 11'. The first outer rib support member 11 and the second outer rib support member 11' are symmetrically arranged at two ends of the bottom plate 12, respectively. A first cavity 15 is provided in the first outer rib support member 11, and a second cavity 15' is provided in the second outer rib support member 11'. One or more protrusions 16 are provided on the bottom plate 12 between the first outer rib support member 11 and the second outer rib support member 11'. The bottom plate 12, the first outer rib support member 11, the second outer rib support member 11' and the protrusions 16 are integrally formed by extrusion of plastic by an injection molding machine. By utilizing the first outer rib support, the second outer rib support and the protrusion, the contact area between the outer surface of the polygonal outer rib wrapped pipe and the soil is increased, the pressure resistance of the pipeline is improved, and the long-term service life of the pipeline is guaranteed. At the same time, a first cavity is provided in the first outer rib support and a second cavity is provided in the second outer rib support, which reduces the pressure inside the polygonal outer rib wrapped pipe to prevent collapse, saves materials, reduces the weight of the pipeline, and saves transportation costs.

[0029] like Figure 2 As shown, a long first steel belt 13 and a second steel belt 14 are respectively arranged inside the joint of the first outer rib support member 11 and the bottom plate 12, thereby improving the bearing strength and ring stiffness of the multi-prism outer rib winding tube.

[0030] like Figure 2 As shown, a third steel strip 13' and a fourth steel strip 14' are respectively arranged inside the junction of the second outer rib support member 11' and the bottom plate 12, so as to further improve the bearing strength and ring stiffness of the multi-prism outer rib winding tube.

[0031] like Figure 1 , Figure 3 As shown, the cover layer 20 connects the top of the adjacent first outer rib support member 11 and the top of the second outer rib support member 11' by hot-melting. The cover layer connects the top of the adjacent first outer rib support member and the top of the second outer rib support member by hot-melting to prevent the polyhedral outer rib winding tube from being loosely bonded or broken.

[0032] like Figure 1 , Figure 3 As shown, the joint of the top of the adjacent first outer rib support member 11 and the top of the second outer rib support member 11' is provided with a fifth steel belt 21. The fifth steel belt, the first outer rib support member and the second outer rib support member are hot-melted together by using the covering layer to improve the bearing strength and ring stiffness of the polygonal outer rib winding tube.

[0033] like Figure 1 , Figure 3 As shown, the outer wall of the adjacent first outer rib support member 11 and the outer wall of the second outer rib support member 11' are connected by heat-melting coating with the covering layer 20. The outer wall of the adjacent first outer rib support member and the outer wall of the second outer rib support member are connected by heat-melting coating with the covering layer, which overcomes the problem of heavy weight caused by overlapping and bonding multiple sheets in the prior art under the same compressive strength and saves materials.

[0034] like Figure 1-Figure 3 As shown, the cross-sections of the first outer rib support member 11 and the second outer rib support member 11' are trapezoidal. The trapezoidal structure is convenient for processing, saves materials and improves the stability of the main body structure.

[0035] Preferably, the main body material is high-density polyethylene or polypropylene. High-density polyethylene or polypropylene has strong plasticity and can be injection-molded into drainage pipes of different diameters according to the mold, which is convenient for transportation and has a wider range of applications.

[0036] In summary, the utility model provides a polyhedral outer rib wrapped pipe, which uses the first outer rib support, the second outer rib support and the protrusion to increase the contact area between the outer surface of the polyhedral outer rib wrapped pipe and the soil, improve the pressure resistance of the pipe, and ensure the long-term service life of the pipe. At the same time, a first cavity is provided in the first outer rib support and a second cavity is provided in the second outer rib support, which reduces the pressure inside the polyhedral outer rib wrapped pipe to prevent collapse, save materials, reduce the weight of the pipe, and save transportation costs. The use of multiple steel belts improves the bearing strength and ring stiffness of the polyhedral outer rib wrapped pipe, and the adjacent first outer rib support and the second outer rib support are connected by hot-melt coating using a covering layer to prevent the polyhedral outer rib wrapped pipe from having loose bonding, faults, and the like.

[0037] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-prism outer rib wound tube, characterized in that: The main body is spirally wound, overlapped and bonded with a covering layer, and the main body includes a bottom plate, a first outer rib support member and a second outer rib support member, the first outer rib support member and the second outer rib support member are symmetrically arranged at both ends of the bottom plate, a first cavity is provided in the first outer rib support member, a second cavity is provided in the second outer rib support member, and one or more protrusions are provided on the bottom plate between the first outer rib support member and the second outer rib support member, and the bottom plate, the first outer rib support member, the second outer rib support member and the protrusions are formed as a whole by extrusion of plastic by an injection molding machine.

2. The multi-prism outer rib wound tube according to claim 1, characterized in that: A first steel belt and a second steel belt in the shape of long strips are respectively arranged inside the joint between the first outer rib support member and the bottom plate.

3. The multi-prism outer rib wound tube according to claim 1, characterized in that: A third steel belt and a fourth steel belt in a long strip are respectively arranged inside the joint between the second outer rib support member and the bottom plate.

4. The multi-prism outer rib wound tube according to claim 1, characterized in that: The covering layer connects the top of the adjacent first outer rib support member and the top of the adjacent second outer rib support member by hot-melt coating.

5. The multi-prism outer rib wound tube according to claim 4, characterized in that: A fifth steel belt is provided at the junction of the top of the adjacent first outer rib support member and the top of the second outer rib support member.

6. The multi-prism outer rib wound tube according to claim 1, characterized in that: The covering layer connects the adjacent outer side walls of the first outer rib support member and the second outer side walls of the outer rib support member by hot-melt coating.

7. The multi-prism outer rib wound tube according to claim 1, characterized in that: The first outer rib support member and the second outer rib support member have trapezoidal cross sections.

8. The multi-prism outer rib wound tube according to claim 1, characterized in that: The main body material is high-density polyethylene or polypropylene.

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