A double-peak reinforced winding drain pipe

Abstract

This utility model relates to the technical field of plastic spiral wound pipes, and in particular to a double-peak reinforced spiral wound drainage pipe. The spiral wound drainage pipe is formed by winding a plastic-steel pipe body, and molten material is provided at the overlap between any two adjacent plastic-steel pipe bodies. First peaks are symmetrically arranged at both ends of the outer surface of the plastic-steel pipe body, and a second peak is arranged in the middle of the outer surface of the plastic-steel pipe body. Multiple steel wires are co-extruded inside the side of the plastic-steel pipe body. The first peaks at both ends of the outer surface of the plastic-steel pipe body form large trough areas, and the second peak is located within these large trough areas. A reinforcing rib is provided inside the second peak, and an inner arc-shaped groove is provided at the top of the second peak. This utility model can shorten the span between the two first peaks, enhance the strength of the trough areas, and the reinforcing rib and the inner arc-shaped groove form a Y-shaped support structure, which can better provide support and has stronger compressive strength.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic spiral wound pipes, and in particular to a double-wave reinforced spiral wound drainage pipe. Background Technology

[0002] With the advancement of urbanization, the demand for drainage pipes for municipal drainage, sewage, and industrial wastewater discharge projects is constantly increasing. Traditional pipes made of cement, cast iron, and ceramics have disadvantages such as poor corrosion resistance, heavy weight, and inconvenient installation. In contrast, plastic pipes, such as HDPE double-wall spiral corrugated pipes, are gradually becoming the mainstream in the market due to their advantages such as corrosion resistance, light weight, and easy installation.

[0003] However, existing corrugated wall drainage pipes often have hollow corrugations and lack reinforcement. Under significant pressure, the corrugations are prone to deformation and breakage, failing to meet the ring stiffness requirements for large-diameter buried pipelines. For example, existing technology discloses a reinforced double-plastic spiral corrugated pipe, which is formed by winding inner and outer wall layers. However, due to the large span between the two corrugations, the trough area becomes a weak point in the wound drainage pipe, making it prone to breakage under external forces, leading to leakage of liquid inside the pipe. Its structure requires further improvement. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the background technology mentioned above, and to provide a double-peak reinforced spiral drainage pipe. By setting a second peak, it can shorten the span between the two first peaks and enhance the strength of the trough area. Furthermore, by setting a vertical reinforcing rib inside the second peak and setting an inner arc-shaped groove at the top of the second peak, a Y-shaped support structure is formed, which can better play a supporting role and has stronger compressive strength.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a double-wave reinforced spiral drainage pipe, wherein the spiral drainage pipe is formed by spiraling a plastic steel pipe body, and molten material is provided at the overlap between any two adjacent plastic steel pipe bodies. The molten material is used to bond the strip-shaped plastic steel pipe bodies together to form a tubular spiral drainage pipe.

[0006] The outer surface of the plastic-steel pipe body has symmetrical first peaks at both ends, and a second peak in the middle of the outer surface of the plastic-steel pipe body. Multiple steel wires are co-extruded inside the side of the plastic-steel pipe body. The first peaks at both ends of the outer surface of the plastic-steel pipe body form a large V-shaped trough area, and the second peak is located within the large trough area. A vertical reinforcing rib is provided inside the second peak, and an inner arc-shaped groove is provided at the top of the second peak. The upper end of the reinforcing rib is connected to the lower end face of the inner arc-shaped groove. The arrangement of the reinforcing rib and the inner arc-shaped groove can shorten the span between the two first peaks and enhance the strength of the trough area.

[0007] As a further technical solution, the interior of the first wave crest has a hollow structure, which can reduce the overall weight of the winding drain pipe.

[0008] As a further technical solution, the outline size of the second wave peak is smaller than that of the first wave peak. The first wave peak, as the main outline of the wound drainage pipe, bears most of the pressure of the wound drainage pipe; while the second wave peak, because it is located in the large wave trough area, bears a small part of the pressure of the wound drainage pipe, which increases the strength and thus improves the overall strength of the wound drainage pipe.

[0009] As a further technical solution, a V-shaped small trough area is formed between the second wave peak and the adjacent first wave peak. The small trough area and the large trough area are arranged in a V-shape, which can better disperse the pressure perpendicular to the axial direction of the winding drain pipe, thereby transforming it into a part of the longitudinal pressure, so that the two adjacent plastic steel pipe bodies are squeezed together, further increasing the strength.

[0010] As a further technical solution, the steel wire and the plastic steel pipe body are integrally extruded by co-extrusion through an extrusion die, and there are 4 steel wires, which are respectively set at the connection between the first wave crest and the side of the plastic steel pipe body. The steel wire and the plastic steel pipe body are co-extruded, which has better strength.

[0011] The beneficial effects of this utility model are: (1) By setting the second wave peak, the span between the two first wave peaks can be shortened and the strength of the wave trough area can be enhanced; and by setting a vertical reinforcing rib inside the second wave peak and setting an inner arc groove at the top of the second wave peak, a Y-shaped support structure is formed, which can better play a supporting role and has stronger compressive strength; (2) By setting the small wave trough area and the large wave trough area into a V-shaped structure, the pressure perpendicular to the axial direction of the winding drainage pipe can be better dispersed, thereby converting it into a part of the longitudinal pressure, so that the two adjacent plastic steel pipe bodies are squeezed together, further increasing the connection strength of the winding drainage pipe. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the double-wave-peak reinforced spiral drainage pipe of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the plastic-steel pipe body in this utility model;

[0015] In the diagram: 001, plastic-steel pipe body; 002, molten material; 003, first peak; 004, second peak; 005, steel wire; 006, large trough area; 007, small trough area; 008, reinforcing rib; 009, inner arc-shaped groove. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] like Figure 1 As shown, a double-wave reinforced spiral drainage pipe is provided. The spiral drainage pipe is formed by spiraling a plastic steel pipe body 001. Molten material 002 is provided at the overlap between any two adjacent plastic steel pipe bodies 001. The molten material 002 is used to bond the strip-shaped plastic steel pipe bodies 001 together to form a tubular spiral drainage pipe.

[0018] like Figure 1 and Figure 2As shown, the outer sides of the plastic-steel pipe body 001 are symmetrically provided with first wave peaks 003 at both ends, and a second wave peak 004 is provided in the middle of the outer side of the plastic-steel pipe body 001. Four steel wires 005 are co-extruded inside the side of the plastic-steel pipe body 001. The first wave peaks 003 at both ends of the outer side of the plastic-steel pipe body 001 form a V-shaped large trough area 006. The second wave peak 004 is located within the large trough area 006. A V-shaped small trough area 007 is formed between the second wave peak 004 and the adjacent first wave peak 003. Both the small trough area 007 and the large trough area 006 are V-shaped, which can better disperse the pressure perpendicular to the axial direction of the wound drainage pipe, thereby converting it into a part of the longitudinal pressure, so that the two adjacent plastic-steel pipe bodies 001 are squeezed into one, further increasing the strength. The second peak 004 has a vertical reinforcing rib 008 inside, and an inner arc-shaped groove 009 is provided at the top of the second peak 004. The upper end of the reinforcing rib 008 is connected to the lower end face of the inner arc-shaped groove 009. The arrangement of the reinforcing rib 008 and the inner arc-shaped groove 009 can shorten the span between the two first peaks 003 and enhance the strength of the trough area.

[0019] The first wave peak 003 has a hollow structure inside, which can reduce the overall weight of the winding drain pipe.

[0020] The outline size of the second peak 004 is smaller than that of the first peak 003. The first peak 003, as the main outline of the wound drain pipe, bears most of the pressure of the wound drain pipe; while the second peak 004, since it is located in the large trough area 006, bears a small part of the pressure of the wound drain pipe, which increases the strength and thus improves the overall strength of the wound drain pipe.

[0021] The steel wire 005 and the plastic steel pipe body 001 are integrally extruded by co-extrusion through an extrusion die, and are respectively set at the connection between the first wave crest 003 and the side of the plastic steel pipe body 001. The steel wire 005 and the plastic steel pipe body 001 are co-extruded, resulting in better strength.

[0022] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A double-wave reinforced spiral wound drainage pipe, wherein the spiral wound drainage pipe is formed by winding a plastic-steel pipe body, and molten material is provided at the overlap between any two adjacent plastic-steel pipe bodies, characterized in that: The outer surface of the plastic-steel pipe body has symmetrical first peaks at both ends, and a second peak in the middle of the outer surface of the plastic-steel pipe body. Multiple steel wires are co-extruded inside the side of the plastic-steel pipe body. The first peaks at both ends of the outer surface of the plastic-steel pipe body form a large V-shaped trough area, and the second peak is located in the large trough area. A vertical reinforcing rib is provided inside the second peak, and an inner arc-shaped groove is provided at the top of the second peak. The upper end of the reinforcing rib is connected to the lower end face of the inner arc-shaped groove.

2. The dual bell and corrugated reinforced wraparound drain pipe of claim 1, wherein, The interior of the first wave peak has a hollow structure.

3. The dual-peak corrugated winding drain pipe according to claim 1, characterized by, The profile size of the second peak is smaller than that of the first peak.

4. The dual-peak corrugated winding drain pipe according to claim 1 or 3, characterized by, A V-shaped trough region is formed between the second peak and the adjacent first peak.

5. The dual-peak corrugated winding drain pipe according to claim 1, wherein, The steel wire and the plastic steel pipe body are integrally extruded and formed by co-extrusion through an extrusion die.

6. The dual-peak corrugated winding drain pipe according to claim 1 or 5, characterized by, There are four steel wires, which are respectively set at the connection between the first wave crest and the side of the plastic steel pipe body.

Images