CN210424021U - High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage - Google Patents
High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage Download PDFInfo
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- CN210424021U CN210424021U CN201921436896.2U CN201921436896U CN210424021U CN 210424021 U CN210424021 U CN 210424021U CN 201921436896 U CN201921436896 U CN 201921436896U CN 210424021 U CN210424021 U CN 210424021U
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Abstract
The utility model relates to the technical field of pipes, in particular to a high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage, which comprises a pipe main body, wherein the outer wall of the pipe main body is provided with annular bosses along the circumferential direction, and two or more than two annular bosses are arranged at intervals along the axis of the pipe main body; the inside cavity of tubular product main part, the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, the material of annular boss is reinforcing modified polypropylene, the cross-section of annular boss is isosceles trapezoid, two relative sides departments that the annular boss corresponds isosceles trapezoid all are equipped with the indent cambered surface. The utility model provides a both arms bellows structure is stable, ring rigidity is good, shock resistance is strong, is suitable for extensive popularization.
Description
Technical Field
The utility model relates to a tubular product technical field especially relates to a high-modulus polypropylene double-walled bellows is used in municipal administration blowdown, drainage.
Background
The corrugated pipe is a cylindrical thin-wall corrugated shell with a plurality of transverse corrugations, has elasticity, and allows large deformation under the action of axial force, transverse force and bending moment due to the characteristics of the geometric shape of the corrugated pipe. Compared with a smooth light pipe, the composite material has the advantages of enough strength, larger flexibility and high fatigue resistance under the action of cyclic stress. The double-wall corrugated pipe is a pipe with an outer wall with an annular structure and a smooth inner wall. Double-walled corrugated pipes are used mainly for: urban drainage, sewage discharge engineering, drainage engineering, farmland irrigation, sand control engineering, low-pressure water supply system, municipal drainage, sewage pipeline reconstruction, buried sheaths of wires and cables and the like. The existing double-arm corrugated pipe is generally weak in impact resistance and easy to break and fracture; the ring has low rigidity, and the pipeline is easy to deform after being extruded, vibrated or used for a long time, so that the flow is difficult to control.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage with impact resistance and good ring stiffness is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage comprises a pipe main body, wherein annular bosses are arranged on the outer wall of the pipe main body along the circumferential direction, and two or more annular bosses are arranged at intervals along the axis of the pipe main body;
the inside cavity of tubular product main part, the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, the material of annular boss is reinforcing modified polypropylene, the cross-section of annular boss is isosceles trapezoid, two relative sides departments that the annular boss corresponds isosceles trapezoid all are equipped with the indent cambered surface.
In an alternative embodiment, the side edges of the isosceles trapezoid form an angle of 45 ° with the bottom edge.
In an alternative embodiment, the inner wall of the polypropylene copolymer layer is provided with an antibacterial modified polyethylene layer.
In an optional embodiment, the inner wall of the polypropylene copolymer layer is provided with an organic fluorine compound hydrophobic layer, the inner wall of the organic fluorine compound hydrophobic layer is provided with a zinc oxide sterilizing layer along the circumferential direction, two or more zinc oxide sterilizing layers are arranged at intervals along the axis of the pipe main body, and the projection width of the zinc oxide sterilizing layer on the axis of the pipe main body is 2 cm-9 cm.
In an alternative embodiment, the ratio of the copolymerized polypropylene layer, the glass fiber layer and the reinforced modified polypropylene layer is 5: 1: 5.
in an alternative embodiment, the surface of the pipe body and the surface of the annular boss are both provided with phenolic epoxy layers.
The beneficial effects of the utility model reside in that: the utility model provides a municipal administration blowdown, high-modulus polypropylene double-walled bellows for drainage, the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, has improved the ring rigidity of tubular product main part through three layer construction, is equipped with annular boss at the outer wall of tubular product main part along the circumferencial direction, the cross-section of annular boss is isosceles trapezoid, and two relative sides departments that correspond isosceles trapezoid with annular boss all design the arcwall face of indent, when the tubular product main part receives the impact, the arcwall face can effectually dissolve external force from both sides and transmit for the tubular product main part, converts the partly of radial force into the axial force, has improved the distribution of power, has played important guard action to the pipeline.
Drawings
Fig. 1 is a cross-sectional view of a high modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage according to an embodiment of the invention;
description of reference numerals:
1-a tube body; a 11-co-polypropylene layer; 12-a glass fiber layer; 13-a reinforced modified polypropylene layer;
2-an annular boss; 21-concave arc surface.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the high modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage of the present invention comprises a pipe main body, wherein an annular boss is arranged on the outer wall of the pipe main body along the circumferential direction, and two or more annular bosses are arranged at intervals along the axis of the pipe main body;
the inside cavity of tubular product main part, the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, the material of annular boss is reinforcing modified polypropylene, the cross-section of annular boss is isosceles trapezoid, two relative sides departments that the annular boss corresponds isosceles trapezoid all are equipped with the indent cambered surface.
From the above description, the beneficial effects of the present invention are: the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, has improved the ring rigidity of tubular product main part through three layer construction, is equipped with annular boss at the outer wall of tubular product main part along the circumferencial direction, the cross-section of annular boss is isosceles trapezoid, and two relative sides departments that correspond isosceles trapezoid with annular boss all design the arcwall face of indent, when the tubular product main part receives the impact, the arcwall face can effectually be dissolved external force from both sides and transmit for the tubular product main part, converts the partly axial force of radial force into, has improved the distribution of power, has played important guard action to the pipeline.
Furthermore, the included angle between the side edge and the bottom edge of the isosceles trapezoid is 45 degrees.
From the above description, the included angle between the waist and the bottom side of the isosceles trapezoid is 45 °, and the side wall of the annular boss corresponding to the two waists is designed to be an arc surface, so that the impact resistance of the pipe can be improved.
Furthermore, the inner wall of the copolymerized polypropylene layer is provided with an antibacterial modified polyethylene layer.
As can be seen from the above description, the antibacterial modified polyethylene layer has the advantages of antibacterial and bacteriostatic properties.
Furthermore, an organic fluorine compound hydrophobic layer is arranged on the inner wall of the copolymerized polypropylene layer, zinc oxide sterilizing layers are arranged on the inner wall of the organic fluorine compound hydrophobic layer along the circumferential direction, two or more zinc oxide sterilizing layers are arranged at intervals along the axis of the pipe main body, and the projection width of the zinc oxide sterilizing layers on the axis of the pipe main body is 2 cm-9 cm.
From the above description, the hydrophobic layer of the organic fluorine compound has better hydrophobicity, which can reduce the resistance on the inner wall of the tube, and the zinc oxide sterilization layer is designed into a ring shape, which not only has the sterilization effect, but also saves the material cost.
Further, the ratio of the copolymerized polypropylene layer to the glass fiber layer to the reinforced modified polypropylene layer is 5: 1: 5.
from the above description, the pipe designed by the above proportion has good strength and ring rigidity.
Furthermore, phenolic epoxy layers are arranged on the surface of the pipe main body and the surface of the annular boss.
From the above description, the novolac epoxy resin layer can further ensure the ring stiffness of the pipe, and improve the heat resistance and dimensional stability of the pipe.
Referring to fig. 1, a first embodiment of the present invention is: a high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage comprises a pipe body 1, wherein an annular boss 2 is arranged on the outer wall of the pipe body 1 along the circumferential direction, and two or more annular bosses 2 are arranged at intervals along the axis of the pipe body 1;
the inside cavity of tubular product main part 1, tubular product main part 1 includes copolymerization polypropylene layer 11, glass fiber layer 12 and reinforcing modified polypropylene layer 13 from inside to outside in proper order, the material of annular boss 2 is reinforcing modified polypropylene, the cross-section of annular boss 2 is isosceles trapezoid, two relative sides departments that annular boss 2 corresponds isosceles trapezoid all are equipped with indent cambered surface 21.
Referring to fig. 1, a second embodiment of the present invention is: a high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage comprises a pipe body 1, wherein an annular boss 2 is arranged on the outer wall of the pipe body 1 along the circumferential direction, and two or more annular bosses 2 are arranged at intervals along the axis of the pipe body 1;
the inside cavity of tubular product main part 1, tubular product main part 1 includes copolymerization polypropylene layer 11, glass fiber layer 12 and reinforcing modified polypropylene layer 13 from inside to outside in proper order, the material of annular boss 2 is reinforcing modified polypropylene, the cross-section of annular boss 2 is isosceles trapezoid, two relative sides departments that annular boss 2 corresponds isosceles trapezoid all are equipped with indent cambered surface 21.
The included angle between the side edge of the isosceles trapezoid and the bottom edge is 45 degrees. And the inner wall of the copolymerized polypropylene layer 11 is provided with an antibacterial modified polyethylene layer. The ratio of the copolymerized polypropylene layer 11 to the glass fiber layer 12 to the reinforced modified polypropylene layer 13 is 5: 1: 5. and phenolic epoxy layers are arranged on the surface of the pipe main body 1 and the surface of the annular boss 2.
Referring to fig. 1, the difference between the third embodiment and the second embodiment of the present invention is: the inner wall of the copolymerized polypropylene layer 11 is provided with an organic fluorine compound hydrophobic layer, the inner wall of the organic fluorine compound hydrophobic layer is provided with a zinc oxide sterilizing layer along the circumferential direction, two or more zinc oxide sterilizing layers are arranged at intervals along the axis of the pipe main body 1, and the projection width of the zinc oxide sterilizing layer on the axis of the pipe main body 1 is 2 cm-9 cm.
To sum up, the utility model provides a municipal administration blowdown, high-modulus polypropylene double-walled bellows for drainage, tubular product main part include copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, have improved the ring rigidity of tubular product main part through three layer construction, are equipped with annular boss at the outer wall of tubular product main part along the circumferencial direction, the cross-section of annular boss is isosceles trapezoid, and two relative side departments that correspond isosceles trapezoid with annular boss all design the arcwall face of indent, when the tubular product main part received the impact, the arcwall face can effectually be dissolved external force from both sides and transmit for the tubular product main part, convert the part of radial force into the axial force, improved the distribution of power, played important guard action to the pipeline.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. The high-modulus polypropylene double-wall corrugated pipe for municipal sewage disposal and drainage is characterized by comprising a pipe main body, wherein annular bosses are arranged on the outer wall of the pipe main body along the circumferential direction, and two or more annular bosses are arranged at intervals along the axis of the pipe main body;
the inside cavity of tubular product main part, the tubular product main part includes copolymerization polypropylene layer, glass fiber layer and reinforcing modified polypropylene layer from inside to outside in proper order, the material of annular boss is reinforcing modified polypropylene, the cross-section of annular boss is isosceles trapezoid, two relative sides departments that the annular boss corresponds isosceles trapezoid all are equipped with the indent cambered surface.
2. The high modulus polypropylene double wall corrugated pipe for municipal sewage drainage and drainage according to claim 1, wherein the angle between the side and the bottom of the isosceles trapezoid is 45 °.
3. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1, wherein the inner wall of the polypropylene copolymer layer is provided with an antibacterial modified polyethylene layer.
4. The high-modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1, wherein the inner wall of the polypropylene copolymer layer is provided with an organic fluorine compound hydrophobic layer, the inner wall of the organic fluorine compound hydrophobic layer is provided with a zinc oxide sterilizing layer along the circumferential direction, two or more zinc oxide sterilizing layers are arranged at intervals along the axis of the pipe body, and the projection width of the zinc oxide sterilizing layers on the axis of the pipe body is 2 cm-9 cm.
5. The high modulus polypropylene double wall corrugated pipe for municipal sewage drainage and drainage according to claim 1, wherein the ratio of the polypropylene copolymer layer, the glass fiber layer and the reinforced modified polypropylene layer is 5: 1: 5.
6. the high modulus polypropylene double wall corrugated pipe for municipal sewage drainage and drainage according to claim 1, wherein the surfaces of the pipe body and the annular boss are provided with phenolic epoxy layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436896.2U CN210424021U (en) | 2019-08-30 | 2019-08-30 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436896.2U CN210424021U (en) | 2019-08-30 | 2019-08-30 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210424021U true CN210424021U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921436896.2U Active CN210424021U (en) | 2019-08-30 | 2019-08-30 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210424021U (en) |
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2019
- 2019-08-30 CN CN201921436896.2U patent/CN210424021U/en active Active
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