HDMP eight-edge reinforced drain pipe

Abstract

The utility model relates to the technical field of drainage pipes, and particularly discloses an HDMP eight-edge reinforced drainage pipe which comprises an inner pipe and an outer wall layer, the outer wall layer is integrally formed m-shaped reinforcing edges which are arranged at intervals and have m-shaped sections, troughs are formed between the adjacent m-shaped reinforcing edges, the sections, perpendicular to the axis of the inner pipe, of the troughs are round, annular reinforcing ribs are arranged at the troughs, and the inner pipe and the outer wall layer are integrally formed. Longitudinal reinforcing ribs are arranged between the adjacent wave crests in the axial direction of the inner pipe, the sections, perpendicular to the axis of the inner pipe, of the m-shaped reinforcing edges are octagonal, the m-shaped reinforcing edges are integrally in an eight-edge shape, and a steel belt layer is arranged between the inner pipe and the outer wall layer and is of a corrugated structure matched with the outer wall layer in structure. The steel belt layer is bonded with the outer wall layer and the inner pipe through bonding resin, the inner pipe and the outer wall layer are made of HDMP materials and have the properties of high density and high compressive strength, the sections of the annular reinforcing ribs and the longitudinal reinforcing ribs are rectangular, and the edges of the annular reinforcing ribs and the longitudinal reinforcing ribs are provided with round corners and m-shaped reinforcing ribs in an eight-edge shape, so that the stress area of the drainage pipe is greatly increased, and the ring stiffness of the drainage pipe is enhanced; and the material of the HDMP has higher density and corrosion resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, in particular to an HDMP octagonal reinforced drainage pipe. Background Art

[0002] Existing corrugated drainage pipes are pipes with an outer wall of a ring structure and a smooth inner wall. The ring structure is generally circular. Usually, polyethylene resin is used as the main raw material, and appropriate additives are added and extruded into shape. They have the advantages of light weight, small drainage resistance, large compressive strength and ring stiffness, and corrosion resistance. Drainage pipes are usually buried underground, and the drainage pipes will bear the pressure from the ground and the covering soil. Due to the limited ring stiffness of the drainage pipes with a circular outer wall, they are prone to deformation when locally bearing a large pressure. After the drainage pipes are deformed, the drainage resistance will increase, thereby affecting the drainage effect. There are also some corrugated pipes with a polygonal outer wall. For example, the patent with the application number "CN202310529015.6" discloses a double-wall corrugated pipe with high ring stiffness and ring flexibility, which is composed of a circular inner wall and an outer wall. The outer wall includes a polygonal outer wall and a transition outer wall, and the polygonal outer wall and the transition are alternately arranged. An arc transition is arranged between adjacent sides of the polygonal outer wall. The cross-sectional shape of the polygonal outer wall is hexagon, octagon, decagon, dodecagon or hexadecagon. Combining its attached drawings, it can be seen that the cross-section of the polygonal outer wall of this corrugated pipe is similar to the circular ring corrugated structure. The effect of improving the ring stiffness of the pipe is limited, and the ring stiffness of this corrugated pipe is improved more by adjusting the material. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the technical problem solved by the utility model is to provide an HDMP octagonal reinforced drainage pipe to solve the problem of poor ring stiffness of the existing drainage pipes with a circular outer wall structure.

[0004] To solve the above problems, the technical solution adopted by the utility model is: an HDMP octagonal reinforced drainage pipe, including an inner pipe and an outer wall layer. The inner pipe has a smooth structure, and the outer wall layer is an integrally formed m-shaped reinforcing rib with a cross-section in the shape of an m, and a wave valley is formed between adjacent m-shaped reinforcing ribs. The cross-section perpendicular to the axis of the inner pipe in the wave valley is circular, and an annular reinforcing rib is provided at the wave valley. Longitudinal reinforcing ribs are arranged along the axial direction of the inner pipe between adjacent wave peaks. The cross-section perpendicular to the axis of the inner pipe of the m-shaped reinforcing rib is an octagon, and the m-shaped reinforcing rib as a whole is in the shape of an octagon. A steel belt layer is provided between the inner pipe and the outer wall layer.

[0005] The beneficial effect of this solution is: Compared with the existing corrugated drainage pipes made of polyethylene resin and with a circular outer wall layer structure, the octagonal m-shaped reinforcing ribs greatly increase the stress area of the drainage pipe, enhance the ring stiffness of the drainage pipe, and the HDMP material has a higher density and anti-corrosion performance than the existing polyethylene resin, making the drainage pipe applicable to more severe environments.

[0006] Furthermore, the steel strip layer has a corrugated structure that matches the structure of the outer wall layer. The inner and outer sides of the steel strip layer are respectively bonded to the inner wall of the outer wall layer and the outer wall of the inner pipe through an adhesive resin. The outer wall layer wraps the steel strip layer, isolating the steel strip layer from the outside world and effectively preventing the oxidation and corrosion of the steel strip layer.

[0007] Furthermore, the inner pipe and the outer wall layer are made of HDMP material. HDMP is modified anhydrous phosphogypsum, which is based on polyethylene resin and is made by physically blending phosphogypsum with other polymer resins, and has the properties of high density and high compressive strength.

[0008] Furthermore, the cross-sections of the annular reinforcing ribs and the longitudinal reinforcing ribs are rectangular, and the edges are rounded to enhance the ring stiffness of the M-shaped reinforcing ribs of the outer wall layer and provide effective protection for the inner pipe and the steel strip layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the overall structure of the HDMP octagonal reinforced drain pipe of the present utility model;

[0010] Figure 2 is a left view of the HDMP octagonal reinforced drain pipe of the present utility model;

[0011] Figure 3 is a schematic cross-sectional view of the HDMP octagonal reinforced drain pipe of the present utility model;

[0012] In the figure: 1 - inner pipe, 2 - outer wall layer, 21 - M-shaped reinforcing rib, 22 - annular reinforcing rib, 23 - longitudinal reinforcing rib, 3 - steel strip layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0014] The embodiments are as follows Figures 1 to 2As shown: An HDMP octagonal reinforced drainage pipe, including an inner pipe 1 and an outer wall layer 2. The inner pipe 1 has a smooth structure, and the outer wall layer 2 is an integrally formed m-shaped reinforcing rib 21 with a spaced cross-section in the shape of an m. A trough is formed between adjacent m-shaped reinforcing ribs 21. The cross-section of the trough perpendicular to the axis of the inner pipe 1 is circular. An annular reinforcing rib 22 is provided at the trough. Longitudinal reinforcing ribs 23 are arranged along the axial direction of the inner pipe 1 between adjacent wave crests. The cross-sections of the annular reinforcing rib 22 and the longitudinal reinforcing ribs 23 are rectangular, and the edges are rounded. The cross-section of the m-shaped reinforcing rib 21 perpendicular to the axis of the inner pipe 1 is an octagon, and the m-shaped reinforcing rib 21 is in an overall octagonal shape. The number of the longitudinal reinforcing ribs 23 is four, and they are evenly distributed at the positions of the edges of the m-shaped reinforcing rib 21 in the trough. The position of the edge of the octagonal m-shaped reinforcing rib 21 is at a relatively higher height compared to the surface of the trough. Adding the longitudinal reinforcing ribs 23 can further improve the ring stiffness. A steel belt layer 3 is provided between the inner pipe 1 and the outer wall layer 2. The steel belt layer 3 has a corrugated structure matching the structure of the outer wall layer 2, increasing the stress area and having a strong ring stiffness, mainly bearing the pressure from outside the drainage pipe. The inner pipe 1 and the outer wall layer 2 are made of HDMP material, having the properties of high density and high compressive strength, providing good protection for the steel belt layer 3, preventing it from oxidation and corrosion, and increasing the service life of the drainage pipe.

[0015] The specific implementation principle is as follows: The materials of the inner pipe 1 and the outer wall layer 2 of the HDMP octagonal reinforced drainage pipe are high-density modified anhydrous phosphogypsum. The outer wall layer 2 is provided with octagonal m-shaped reinforcing ribs 21. An annular reinforcing rib 22 and longitudinal reinforcing ribs 23 are provided between the m-shaped reinforcing ribs 21, and the reinforcing ribs further improve the strength of the outer wall layer 2. A steel belt layer 3 with a corrugated structure matching the outer wall layer 2 is provided between the inner pipe 1 and the outer wall layer 2, greatly enhancing the ring stiffness of the drainage pipe. The material of the outer wall layer 2 has better compressive strength and corrosion resistance compared to the existing polyethylene resin, providing better protection for the internal steel belt layer 3.

[0016] The above are only embodiments of the present invention. Common general knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An HDMP octagonal reinforced drain pipe, comprising an inner pipe and an outer wall layer, the inner pipe being a smooth structure, characterized in that: The outer wall layer is an integrally formed M-shaped reinforcing rib with spaced intervals, and the cross-section is in the shape of an M. A wave valley is formed between adjacent M-shaped reinforcing ribs. The cross-section of the wave valley perpendicular to the axis line of the inner tube is circular. An annular reinforcing rib is provided at the wave valley. Longitudinal reinforcing ribs are arranged along the axial direction of the inner tube between adjacent wave peaks. The cross-section of the M-shaped reinforcing rib perpendicular to the axis line of the inner tube is an octagon, and the M-shaped reinforcing rib is in an overall octagonal shape. A steel belt layer is provided between the inner tube and the outer wall layer.

2. The HDMP octagonal reinforced drainage pipe according to claim 1, wherein: The steel belt layer is a corrugated structure matching the structure of the outer wall layer. The inner and outer sides of the steel belt layer are respectively bonded to the inner wall of the outer wall layer and the outer wall of the inner tube through an adhesive resin.

3. The HDMP octagonal reinforced drain pipe according to claim 1, characterized in that: The inner tube and the outer wall layer are made of HDMP material.

4. The HDMP octagonal reinforced drainage pipe according to claim 1, wherein: The cross-sections of the annular reinforcing rib and the longitudinal reinforcing rib are rectangular, and the edges are rounded.

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