Hollow wall plastic steel winding polyethylene pipeline

Abstract

The utility model discloses a hollow wall plastic steel winding polyethylene pipeline, which relates to the field of drainage pipeline equipment, and comprises a plurality of hollow wall plastic steel units which are bonded together through bonding plates, each hollow wall plastic steel unit comprises an inner pipe, vertical ribs, an outer pipe and a steel skeleton, the inner wall of the inner pipe is straight and smooth, the vertical ribs are symmetrically arranged on the two sides of the outer wall of the inner pipe, and the outer pipe is connected with the steel skeleton. The tops of the vertical ribs are connected with an outer pipe, the outer pipe is in a wave shape, a clamping cavity is formed among the two vertical ribs, the inner pipe and the outer pipe, a steel framework is arranged in the clamping cavity, the two ends of the inner pipe are located on the outer sides of the vertical ribs, the end of the inner pipe and the bottom of the bonding plate are connected together, the end of the outer pipe and the top of the bonding plate are connected together, and the vertical ribs are parallel to the bonding plate. According to the hollow wall plastic steel winding polyethylene pipeline, only the vertical ribs are arranged between the inner pipe and the outer pipe to form the containing clamping cavity of the steel framework, the internal structure of the hollow wall plastic steel winding polyethylene pipeline is effectively simplified, the use amount of polyethylene is reduced, and the rigidity-weight ratio of the pipeline is increased.

Description

Technical Field

[0001] The utility model relates to the field of drainage pipeline equipment, in particular to a hollow wall plastic steel wrapped polyethylene pipeline. Background Art

[0002] Hollow wall plastic steel wrapped polyethylene pipe is suitable for municipal drainage, its inner wall is smooth and flat, and it has the advantages of corrosion resistance, light weight, easy installation, large flow rate, long service life, etc. Existing hollow wall plastic steel wrapped polyethylene pipes have complex internal structures, which leads to increased polyethylene usage, thereby reducing the stiffness-to-weight ratio of the pipe, such as patent CN218992628U; or the steel skeleton is not well fixed, resulting in poor structural stability of the hollow wall plastic steel wrapped pipe, such as patent CN207005480U. Therefore, how to provide a hollow wall plastic steel wrapped polyethylene pipe with high stiffness-to-weight ratio and excellent structural stability has become a difficult problem to be solved by technicians in this field. Summary of the invention

[0003] The utility model aims to provide a hollow wall plastic steel wrapped polyethylene pipe to solve the problems of low stiffness-to-weight ratio or poor structural stability of the existing hollow wall plastic steel wrapped polyethylene pipe.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a hollow wall plastic steel wound polyethylene pipe, comprising a plurality of hollow wall plastic steel units bonded together by bonding plates, the hollow wall plastic steel units comprising an inner tube, vertical ribs, an outer tube and a steel skeleton, the inner wall of the inner tube is straight and smooth, the vertical ribs are symmetrically installed on both sides of the outer wall of the inner tube, the top of the vertical ribs is connected to the outer tube, the outer tube is wavy, a sandwich cavity is formed between two vertical ribs, the inner tube and the outer tube, the steel skeleton is arranged inside the sandwich cavity, the steel skeleton is in an "Ω" shape, the end portions of the inner tube are located outside the vertical ribs, the end portions of the inner tube are connected to the bottom of the bonding plate, the end portions of the outer tube are connected to the top of the bonding plate, and the vertical ribs are parallel to the bonding plate.

[0006] Preferably, the top of the steel frame abuts against the inner wall of the outer tube, the bottom of the steel frame abuts against the outer wall of the inner tube, and both ends of the steel frame abut against the vertical ribs.

[0007] Preferably, the vertical rib is in an "R" shape, the inclined surface of the vertical rib is in contact with the bent portions at both ends of the steel frame, and the tops of the bent portions at both ends of the steel frame are buckled with the top protrusions of the vertical rib.

[0008] Preferably, a support rod is connected to the outer side of the top of the vertical rib, the other end of the support rod is connected to the bonding plate, and the support rod is parallel to the inner tube.

[0009] Preferably, the steel skeleton is made of galvanized steel strip, and the elongation after fracture of the steel skeleton is not less than %.

[0010] Preferably, the distances between two adjacent steel skeletons are the same.

[0011] Preferably, one end of the hollow-wall plastic-steel wrapped polyethylene pipe is provided with a spigot joint, and the other end is provided with a socket joint, and the spigot joints and the socket joints of two adjacent hollow-wall plastic-steel wrapped polyethylene pipes are connected by a rubber sealing ring.

[0012] Preferably, the socket joints and the bell joints of two adjacent hollow-wall plastic-steel wrapped polyethylene pipes are connected by hot-melt connection via a hot-melt component, wherein the hot-melt component comprises a connected power plug and an electric hot-melt mesh, and the electric hot-melt mesh is tightly attached to the outer wall of the socket joint and the inner wall of the bell joint.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] 1) The utility model effectively simplifies the internal structure of the hollow-wall plastic-steel wrapped polyethylene pipe, reduces the amount of polyethylene used, and improves the stiffness-to-weight ratio of the hollow-wall plastic-steel wrapped polyethylene pipe by only arranging vertical ribs between the inner pipe and the outer pipe to form a steel frame placement cavity.

[0015] 2) The utility model improves the fit between the vertical ribs and the steel frame by setting the vertical ribs in an R shape, thereby improving the positioning and fixing effect of the vertical ribs on the steel frame and improving the structural stability of the hollow wall plastic steel wrapped polyethylene pipe.

[0016] 3) The heads of the vertical bars are connected together through support rods and bonding plates, which further improves the positioning and fixing effect of the vertical bars on the steel frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 This is a cross-sectional view of a single-side wall pipe of a hollow-wall plastic-steel wrapped polyethylene pipe of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 3 This is a schematic diagram of the rib structure of the utility model;

[0021] Figure 4The connection relationship between the socket joint and the socket joint of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 5 The connection relationship between the socket joint and the socket joint of the utility model is shown in FIG. Figure 2 .

[0023] Explanation of the reference numerals: 1. Steel frame; 2. Outer tube; 3. Inner tube; 4. Vertical ribs; 5. Adhesive plate; 6. Socket joint; 7. Socket joint; 8. Rubber sealing ring; 9. Plug joint; 10. Electric hot melt mesh; 41. Support rod. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figure 1-5 As shown, a hollow wall plastic steel wrapped polyethylene pipe comprises a plurality of hollow wall plastic steel units bonded together by bonding plates 5, the hollow wall plastic steel units comprising an inner tube 3, vertical ribs 4, an outer tube 2 and a steel skeleton 1, the inner wall of the inner tube 3 is straight and smooth, the vertical ribs 4 are symmetrically installed on both sides of the outer wall of the inner tube 3, the top of the vertical ribs 4 is connected to the outer tube 2, the outer tube 2 is wavy, a sandwich cavity is formed between the two vertical ribs 4, the inner tube 3 and the outer tube 2, the steel skeleton 1 is arranged inside the sandwich cavity, the steel skeleton 1 is "Ω" shaped, the end portions of the inner tube 3 are located outside the vertical ribs 4, and the end portions of the inner tube 3 are connected to the bottom of the bonding plate 5, the end portions of the outer tube 2 are connected to the top of the bonding plate 5, and the vertical ribs 4 are parallel to the bonding plate 5.

[0026] Among them, the internal structure of the hollow wall plastic steel wrapped polyethylene pipe is simple, and the polyethylene material is small, which effectively improves the stiffness-to-weight ratio of the hollow wall plastic steel wrapped polyethylene pipe provided by the utility model.

[0027] Specifically, the top of the steel frame 1 and the inner wall of the outer tube 2 are abutted together, the bottom of the steel frame 1 and the outer wall of the inner tube 3 are abutted together, and both ends of the steel frame 1 and the vertical ribs 4 are abutted together.

[0028] Specifically, the vertical rib 4 is in an “R” shape, the inclined surface of the vertical rib 4 fits with the bent portions at both ends of the steel frame 1 , and the tops of the bent portions at both ends of the steel frame 1 are buckled with the top protrusions of the vertical rib 4 .

[0029] The utility model effectively improves the fixing effect of the steel skeleton 1 through the “R”-shaped vertical ribs 4, and improves the structural stability of the hollow wall plastic steel wrapped polyethylene pipe provided by the utility model.

[0030] Specifically, a support rod 41 is connected to the outer side of the top of the vertical rib 4 , and the other end of the support rod 41 is connected to the bonding plate 5 . The support rod 41 is parallel to the inner tube 3 .

[0031] When the outer tube 3 is subjected to force and drives the steel frame 1 to deform and move, the bearing force exerted on the vertical ribs 4 is transmitted to the bonding plate 5 through the support rods 41. The bonding plate 5 and the vertical ribs 4 jointly stabilize the steel frame 1, further improving the structural stability of the hollow wall plastic steel wrapped polyethylene pipe provided by the utility model.

[0032] Specifically, the steel skeleton 1 is made of galvanized steel strip, and the elongation after fracture of the steel skeleton 1 is not less than 23%.

[0033] Specifically, the distances between two adjacent steel skeletons 1 are the same.

[0034] Specifically, one end of the hollow wall plastic steel wrapped polyethylene pipe is provided with a socket joint 6, and the other end is provided with a socket joint 7, and the socket joints 6 and the socket joints 7 of two adjacent hollow wall plastic steel wrapped polyethylene pipes are connected by a rubber sealing ring 8.

[0035] Specifically, the socket joints 6 and the socket joints 7 of two adjacent hollow-wall plastic-steel wrapped polyethylene pipes are connected by hot-melt connection, and the hot-melt component includes a connected power plug 9 and an electric hot-melt mesh 10, and the electric hot-melt mesh 10 is tightly attached to the outer wall of the socket joint 6 and the inner wall of the socket joint 7.

[0036] The processing process of the utility model is: the polyethylene matrix is ​​extruded by an extruder, cooled and rolled, and then passed through a device rotating around an axis, and the front and rear overlaps are extrude the bonding melt by the extruder to make the polyethylene matrix stick together to form an inner tube 2 and vertical ribs 4, and then the steel strip is rolled and bent into a spiral steel skeleton and stuck in the installation cavity of the steel skeleton 1, and then another extruder extrude a wavy polyethylene matrix to cover the surface of the inner tube 3, so that the wavy polyethylene matrix and the bonding melt are connected as a whole to form an outer tube 2 of the pipeline.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A hollow wall plastic steel wrapped polyethylene pipe, characterized in that: The invention comprises a plurality of hollow-wall plastic-steel units bonded together by a bonding plate (5), wherein the hollow-wall plastic-steel units comprise an inner tube (3), vertical ribs (4), an outer tube (2) and a steel frame (1); the inner wall of the inner tube (3) is straight and smooth; the vertical ribs (4) are symmetrically mounted on both sides of the outer wall of the inner tube (3); the top of the vertical ribs (4) is connected to the outer tube (2); the outer tube (2) is wavy; a sandwich cavity is formed between two vertical ribs (4), the inner tube (3) and the outer tube (2); the steel frame (1) is arranged inside the sandwich cavity; the steel frame (1) is in an "Ω" shape; the ends of the inner tube (3) are located outside the vertical ribs (4); the ends of the inner tube (3) are connected to the bottom of the bonding plate (5); the ends of the outer tube (2) are connected to the top of the bonding plate (5); and the vertical ribs (4) are parallel to the bonding plate (5).

2. The hollow wall plastic steel wrapped polyethylene pipe according to claim 1, characterized in that: The top of the steel frame (1) and the inner wall of the outer tube (2) are in contact with each other, the bottom of the steel frame (1) and the outer wall of the inner tube (3) are in contact with each other, and the two ends of the steel frame (1) and the vertical ribs (4) are in contact with each other.

3. The hollow wall plastic steel wrapped polyethylene pipe according to claim 2, characterized in that: The vertical rib (4) is in an "R" shape, the inclined surface of the vertical rib (4) fits in with the bent portions at both ends of the steel frame (1), and the tops of the bent portions at both ends of the steel frame (1) are buckled into the top protrusions of the vertical rib (4).

4. The hollow wall plastic steel wrapped polyethylene pipe according to claim 3, characterized in that: A support rod (41) is connected to the outer side of the top of the vertical rib (4), the other end of the support rod (41) is connected to the bonding plate (5), and the support rod (41) is parallel to the inner tube (3).

5. The hollow wall plastic steel wrapped polyethylene pipe according to claim 4, characterized in that: The steel frame (1) is made of galvanized steel strip, and the elongation after fracture of the steel frame (1) is not less than 23%.

6. The hollow wall plastic steel wrapped polyethylene pipe according to claim 1, characterized in that: The distance between two adjacent steel frames (1) is the same.

7. The hollow wall plastic steel wrapped polyethylene pipe according to claim 1, characterized in that: One end of the hollow wall plastic steel wrapped polyethylene pipe is provided with a socket joint (6), and the other end is provided with a socket joint (7). The socket joints (6) and the socket joints (7) of two adjacent hollow wall plastic steel wrapped polyethylene pipes are connected via a rubber sealing ring (8).

8. The hollow wall plastic steel wrapped polyethylene pipe according to claim 7, characterized in that: The socket joints (6) and the bell joints (7) of two adjacent hollow-wall plastic-steel wrapped polyethylene pipes are connected by hot-melt connection via a hot-melt component, wherein the hot-melt component comprises a connected power plug (9) and an electric hot-melt mesh (10), and the electric hot-melt mesh (10) is closely attached to the outer wall of the socket joint (6) and the inner wall of the bell joint (7).

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