High molecular weight and high density polyethylene (HMWHDPE) double-crest reinforced winding structure wall pipe drainage pipe

Abstract

The utility model discloses a high molecular weight high density polyethylene (HMWHDPE) double-crest reinforced winding structure wall pipe drainage pipe, which comprises a pipeline body, high crests and low crests are alternately and spirally wound on the peripheral surface of the pipeline body, the section of each low crest is arc-shaped, the outer contour of each high crest is arch-bridge-shaped, and the outer contour of each low crest is arc-shaped. A reinforcing rib is arranged between the center of the high wave crest and the pipeline body, and the two sides of the upper portion of the reinforcing rib protrude outwards in an arc mode. Steel wires are embedded in the joints of the high wave crests and the pipeline body and the joints of the reinforcing ribs and the pipeline body, steel wires are embedded in at least one side of the top ends of the high wave crests, and arc-shaped ribs are arranged on the outer walls of the positions where the steel wires are embedded in a protruding mode. The two sides of the upper portion of the reinforcing rib protrude outwards in an arc mode, a stronger supporting ring is formed on the inner side of the top end of the high wave crest, the steel wires are additionally arranged at the key position with the large wall thickness through the reasonable structural design, and the ring stiffness index of the pipe can be greatly improved through the structural design. And the structural stability of the drainage pipe in the buried use process is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipes, in particular to a high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe. Background Art

[0002] Municipal or industrial buried drainage and sewage pipes need to have good corrosion resistance. At the same time, because they are buried, the pipe diameter generally needs to be large, and the pressure resistance requirement is also relatively high. In the existing technology, winding wall pipes with crests are generally used as buried drainage pipes. Because the top of the crest is subjected to the greatest pressure, when it is subjected to excessive pressure, the top is prone to collapse. In addition, simply increasing the thickness of the crest to improve strength is costly. Utility Model Content

[0003] The utility model provides a high molecular weight high density polyethylene HMWHDPE double wave peak reinforced winding structure wall pipe drainage pipe, which increases the compressive capacity of the wave peak top through structural improvement and saves costs as much as possible.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe includes a pipe body, the outer circumference of the pipe body is alternately spirally wound with high wave peaks and low wave peaks, wherein the cross-section of the low wave peak is an arc, and the outer contour of the high wave peak is an arch bridge, and a reinforcing rib is provided between the center of the high wave peak and the pipe body, and the upper two sides of the reinforcing rib are arc-shaped and convex outward; the high wave peak and the intersection of the reinforcing rib and the pipe body are all embedded with steel wire, and at least one side of the top of the high wave peak is embedded with steel wire, and the outer wall of the position where the steel wire is embedded is protruded with an arc rib.

[0006] Furthermore, the height of the high peak is 2-2.5 times that of the low peak.

[0007] Furthermore, the steel wire is replaced by glass fiber wire or galvanized wire.

[0008] Furthermore, two steel wires are symmetrically arranged at the intersection of the reinforcing rib and the pipe body.

[0009] Furthermore, the top of the high wave peak is a separate covering monomer, which is crescent-shaped. The arc-shaped ribs and the covering monomer are subsequently extruded as one piece.

[0010] The utility model is beneficial in that:

[0011] The upper sides of the reinforcing ribs of this utility model are curved and convex outward, forming a stronger support ring inside the top of the high wave crest. Steel wire is embedded in the high wave crest and at the intersection of the reinforcing ribs and the pipe body. Furthermore, at least one side of the high wave crest is embedded with steel wire, and the outer wall of the location where the steel wire is embedded is provided with a protruding curved rib. This overcomes the problem of the high wave crest having a thin wall thickness that makes it difficult to embed steel wire. This structural design greatly improves the pipe's ring stiffness index and enhances the structural stability of the drainage pipe during underground use. It also eliminates the need to thicken the entire wave crest, saving a considerable amount of material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the axial cross-section structure of the drainage pipe wall;

[0013] Figure 2 Schematic diagram of the three-dimensional structure of the strip;

[0014] Figure 3 This is a schematic structural diagram of the second embodiment of the present utility model.

[0015] In the figure, 1-pipe body, 2-low wave peak, 3-high wave peak, 4-reinforcement rib, 5-steel wire, 6-arc rib, 7-covering unit. DETAILED DESCRIPTION

[0016] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0017] like Figure 1-3 As shown:

[0018] A high molecular weight high density polyethylene (HMWHDPE) double wave peak reinforced winding structure wall pipe drainage pipe, comprising a pipe body 1, the outer circumference of the pipe body 1 is alternately spirally wound with high wave peaks 3 and low wave peaks 2, wherein the cross section of the low wave peak 2 is an arc, and the outer contour of the high wave peak 3 is an arch bridge, and a reinforcing rib 4 is provided between the center of the high wave peak 3 and the pipe body 1, and the upper sides of the reinforcing rib 4 are arc-shaped and convex outward; the intersection of the high wave peak 3 and the reinforcing rib 4 with the pipe body 1 is embedded with steel wire 5, and at least one side of the top of the high wave peak 3 is embedded with steel wire 5, and the outer wall of the position where the steel wire 5 is embedded is protruded with an arc rib 6, wherein the high wave peak 3, the low wave peak 2 and the pipe body 1 are all high density polyethylene extrusion molding, first extruding the pipe strip (see attached Figure 2 ), and then welded in a spiral winding manner. The strip is divided by the center of the reinforcing rib 4, so that the area is maximized during welding and the strength of the welding can be guaranteed.

[0019] The utility model adopts high molecular weight high density polyethylene (HMWHDPE) material. High molecular weight high density polyethylene (HMWHDPE) is made of high density polyethylene. Its average molecular weight is higher than that of polyethylene. Its stress cracking resistance, impact strength, tensile strength, wear resistance and chemical stability are all better than those of high density polyethylene.

[0020] The alternating spiral winding of high wave peaks 3 and low wave peaks 2 makes the pipe have a larger surface area. The height of the high wave peak 3 can be 2-2.5 times that of the low wave peak 2. The difference should not be too large, thereby forming a common compression resistance between the pipe and the soil.

[0021] The upper sides of the reinforcing rib 4 bulge outward in an arc, forming a stronger support ring inside the top of the high peak 3. Steel wires 5 are embedded in the high peak 3 and at the intersection of the reinforcing rib 4 and the pipe body 1. Furthermore, the steel wire 5 is embedded in at least one side of the top of the high peak 3, and curved ribs 6 are protruding from the outer wall where the steel wire 5 is embedded. This overcomes the problem of the thin wall of the high peak 3, which makes it difficult to embed the steel wire 5. This structural design greatly improves the pipe's ring stiffness index and enhances the structural stability of the drainage pipe during underground use.

[0022] Since the junction between the reinforcing rib 4 and the pipe body 1 is wide enough, two steel wires 5 can be symmetrically arranged at the junction between the reinforcing rib 4 and the pipe body 1. According to the ring stiffness requirements, the steel wires can also be replaced by glass fiber wires or galvanized wires.

[0023] The present invention also provides a second implementation method, in which the top of the high wave peak 3 is a separate covering monomer 7, the strip does not include this part and the steel wire at the top, the covering monomer 7 is crescent-shaped, and the arc-shaped ribs 6 and the covering monomer 7 are subsequently extruded as one piece. After the pipe winding and welding is completed, the steel wire 5 is wrapped around the top surface of the high wave peak 3, and then the covering monomer and the arc-shaped rib 6 are extruded. In this way, the steel wire on the top surface of the high wave peak 3 can be added later without being embedded in the strip in advance.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe, characterized by: The utility model comprises a pipe body, the outer circumference of which is alternately spirally wound with high wave crests and low wave crests, wherein the cross section of the low wave crest is an arc-shaped, and the outer contour of the high wave crest is an arch bridge-shaped, and a reinforcing rib is arranged between the center of the high wave crest and the pipe body, and the upper two sides of the reinforcing rib are convex outward in an arc shape; the high wave crest and the intersection of the reinforcing rib and the pipe body are all embedded with steel wire, and at least one side of the top of the high wave crest is embedded with steel wire, and an arc-shaped rib is protruded from the outer wall of the position where the steel wire is embedded.

2. The high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe according to claim 1, characterized in that: The height of the high wave peak is 2-2.5 times that of the low wave peak.

3. The high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe according to claim 1, characterized in that: The steel wire is replaced by glass fiber wire or galvanized wire.

4. The high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe according to any one of claims 1-2, characterized in that: Two steel wires are symmetrically arranged at the intersection of the reinforcing rib and the pipe body.

5. The high molecular weight high density polyethylene (HMWHDPE) double-peak reinforced winding structure wall pipe drainage pipe according to any one of claims 1-2, characterized in that: The top of the high wave peak is a separate covering monomer, which is crescent-shaped. The arc-shaped ribs and the covering monomer are subsequently extruded as a whole.

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