Nano-reinforced multi-wave polyethylene spiral drain pipe

Abstract

The utility model relates to a nano-reinforced multi-wave polyethylene spiral drain pipe, which comprises a polyethylene pipe with a winding reinforcement body, and is characterized in that the winding reinforcement body is a multi-wave high-low staggered reinforcement structure formed by sequentially arranging a high-wave structure body and at least one low-wave reinforcement body on a loading surface structure body at intervals; a reinforcing vertical rib is arranged in an inner cavity of the high-wave structural body for supporting, the reinforcing vertical rib divides the inner cavity of the high-wave structural body into two parts, and the wave height of the high-wave structural body is larger than that of the low-wave reinforcing body. The drainage pipe is high in ring rigidity and ring flexibility, resistant to impact and long in service life, the structural performance and the physical index of the drainage pipe are higher than those of similar plastic drainage pipes, the problem that a large-diameter drainage pipe cannot be produced by small plastic extrusion equipment is solved, the production cost is low, the production efficiency is high, and rust stain cannot occur.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, in particular to a nano-enhanced multi-wave polyethylene spiral drainage pipe. Background Art

[0002] In the field of rain and sewage drainage pipelines, rapid development has occurred in recent years, with new types of rain and sewage drainage pipelines emerging in an endless stream. Traditional plastic rain and sewage drainage pipelines have the disadvantages of low ring stiffness and high cost. In addition, there is also the problem that small plastic extrusion equipment cannot produce large-diameter drainage pipelines. In recent years, steel-plastic composite drainage pipes containing steel plates or steel wires (such as: steel belt reinforced corrugated pipes, plastic-steel wound pipes, etc.) have emerged. The introduction of this steel-plastic composite pipe has pushed urban rain and sewage municipal projects to a new height. For example, Chinese Utility Model Patent No. 20130334432.2 discloses a plastic-steel wound pipe, which includes a polyethylene inner pipe, a winding layer, and a polyethylene outer protective layer. The winding layer is made of high-strength over-plastic steel wires. The disadvantages of this steel-plastic composite pipe are as follows: After long-term use of the steel-containing pipeline, the steel is severely contaminated. In some pipelines, the steel rust and dirt lose the ability to resist soil pressure and external loads, resulting in pipe collapse, pipeline blockage, affecting the drainage capacity, and then causing ground collapse, obstructing urban drainage, polluting the environment with sewage, and causing economic losses during repair. Therefore, there is an urgent need to invent and innovate a new type of rain and sewage drainage pipeline that not only has high ring stiffness, does not increase the pipe cost, but also does not rust and get dirty. Summary of the Invention

[0003] The purpose of the utility model is to address the above-mentioned existing problems and deficiencies, and provide a nano-enhanced multi-wave polyethylene spiral drainage pipe with high ring stiffness and ring flexibility, impact resistance, long service life, whose structural performance and physical indicators are higher than those of similar plastic drainage pipes, and which also solves the problem that small plastic extrusion equipment cannot produce large-diameter drainage pipes, and has low production cost, high production efficiency, and does not rust and get dirty.

[0004] The technical solution of the utility model is realized as follows:

[0005] The nano-enhanced multi-wave polyethylene spiral drainage pipe of the utility model includes a polyethylene pipe with a winding reinforcement. Its characteristics are: the winding reinforcement is a multi-wave high-low staggered arrangement reinforcement structure in which a high-wave structure body and at least one low-wave reinforcement body are sequentially and alternately arranged on a load-bearing surface structure body. Among them, the inner cavity of the high-wave structure body is supported by a reinforcing vertical rib, which divides the inner cavity of the high-wave structure body into two parts, and the wave height of the high-wave structure body is greater than the wave height of the low-wave reinforcement body. Preferably, the height of the low-wave reinforcement body is 1 / 2 of the height of the high-wave structure body.

[0006] The utility model has three technical solutions:

[0007] The first type is: there is a low-wave reinforcing body between the wave crests of adjacent high-wave structural bodies, and the inner cavity of the low-wave reinforcing body is provided with auxiliary reinforcing vertical ribs for support, and the auxiliary reinforcing vertical ribs divide the inner cavity of the low-wave reinforcing body into two parts. The auxiliary reinforcing vertical ribs and the low-wave reinforcing body are processed and formed together. There is a spacing between both sides of the low-wave reinforcing body and the wave crests of the high-wave structural bodies. The spacing between both sides of the low-wave reinforcing body and the high-wave structural bodies is 1 / 3 - 1 / 2 of the bottom width of the low-wave reinforcing body. Preferably, it is 1 / 2.

[0008] The second type is: there is a low-wave reinforcing body between the wave crests of the high-wave structural bodies, and the inner cavity of the low-wave reinforcing body is provided with auxiliary reinforcing vertical ribs for support, and the auxiliary reinforcing vertical ribs divide the inner cavity of the low-wave reinforcing body into two parts. Both sides of the low-wave reinforcing body are connected to the side surfaces of the wave crests of the high-wave structural bodies.

[0009] Preferably, the auxiliary reinforcing vertical ribs are arranged in the middle of the inner cavity of the low-wave reinforcing body, and the auxiliary reinforcing vertical ribs and the low-wave reinforcing body are processed and formed together to ensure the overall stability of the low-wave reinforcing body.

[0010] The third type is: there are two connected low-wave reinforcing bodies between the wave crests of adjacent high-wave structural bodies, forming a double-wave auxiliary reinforcing structure. Preferably, the side surface of the double-wave auxiliary reinforcing structure is connected to the side surface of the wave crest of the high-wave structural body, forming a complete structural body with continuous corrugations.

[0011] Furthermore: the cross-section of the high-wave structural body is a semi-elliptical hollow cavity, the cross-section of the low-wave reinforcing body is a semi-circular hollow cavity or a semi-elliptical hollow cavity, the bottom width of the high-wave structural body is 2 / 3 of its height, and the bottom width of the low-wave reinforcing body is 2 / 3 of the bottom width of the high-wave structural body.

[0012] Furthermore: the winding reinforcing body is an HDPE strip with the high-wave structural body and a single low-wave reinforcing body or two low-wave reinforcing bodies arranged staggeredly, and the polyethylene pipe is formed by winding and bonding the HDPE strip on a winding forming machine. The vertical overlapping joints of the HDPE strip are bonded with a bonding resin.

[0013] Even further: an enhancing ring made of an HDPE alloy rigidifying material is laid on the top of the wave crest of the high-wave reinforcing body to enhance the impact resistance. The thickness of the enhancing ring is 1 / 8 of the height of the high-wave structural body.

[0014] Advantages and beneficial effects of the patent solution:

[0015] 1. Since the winding reinforcement of the present utility model is composed of a multi-wave high-low staggered arrangement reinforcement structure (also called a winding reinforcement strip with multi-wave high-low staggered arrangement) in which a high-wave structure body and at least one low-wave reinforcement are sequentially arranged at intervals on the load-bearing surface structure body, and then the winding reinforcement is helically wound by a winding method to form a multi-wave polyethylene spiral drainage pipe, and the inner cavity of the high-wave structure body is also provided with reinforcing vertical ribs for support, it not only solves the problems of low ring stiffness existing in existing all-plastic rain and sewage pipes and the inability of small plastic extrusion equipment to produce large-diameter threaded pipes, but also is superior to steel-containing composite plastic rain and sewage pipes in terms of production cost, production efficiency and service life.

[0016] 2. To enhance the planar stiffness of the winding reinforcement strip, at least one semi-circular or semi-elliptical low-wave reinforcement is added to the straight part between adjacent high-wave structure bodies, and auxiliary reinforcing vertical ribs are arranged in the middle of the low-wave reinforcement, so that large and small wave peaks with vertical rib support are formed on the winding reinforcement strip, and the structural form is more reasonable.

[0017] 3. Reinforcing rings are added to the high-wave structure body, increasing the thickness of the top of the entire pipe to form a semi-circular strengthening ring of the pipe, thereby increasing the impact resistance of the pipe during the process of backfilling with sandy soil and at the same time increasing the performance of bearing external loads.

[0018] 4. The pipe of the present utility model has low production cost and high production efficiency, and its structural performance and physical indicators are higher than those of similar drainage pipes, and it is very suitable for rain and sewage drainage projects such as cities, rural areas, factories and mines, and chemical liquid transportation projects.

[0019] The following further explains the present utility model with reference to the accompanying drawings. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the sectional structure of the first embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the sectional structure of the second embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the sectional structure of the third embodiment of the present utility model. Specific Embodiment

[0024] Such as Figures 1 - 4As shown in the figure, the nano-enhanced multi-wave polyethylene (MNHDPE) spiral drain pipe of the present utility model includes a polyethylene pipe 1 with a winding reinforcement body. The winding reinforcement body 2 is a multi-wave high-low staggered arrangement reinforcement structure formed by sequentially and alternately arranging a high-wave structure body 2 and at least one low-wave reinforcement body 3 on a load-bearing surface structure body, also called a winding reinforcement body strip with a multi-wave high-low staggered arrangement. Among them, the inner cavity of the high-wave structure body 2 is supported by a reinforcing vertical rib 4. The reinforcing vertical rib 4 divides the inner cavity of the high-wave structure body 2 into two parts. The wave height of the high-wave structure body 2 is greater than that of the low-wave reinforcement body 3. Preferably, the cross-section of the high-wave structure body 2 is a semi-elliptical hollow cavity, the cross-section of the low-wave reinforcement body 3 is a semi-circular hollow cavity or a semi-elliptical hollow cavity. The bottom width of the high-wave structure body 2 is 2 / 3 of its height, and the bottom width of the low-wave reinforcement body 3 is 2 / 3 of the bottom width of the high-wave structure body. The reinforcing vertical rib 4 is made of HDPE material.

[0025] This application has multiple implementation schemes:

[0026] Scheme 1, as Figures 1 - 2 shown, there is a semi-circular low-wave reinforcement body 3 between the wave peaks of the semi-elliptical high-wave structure body 2, and the inner cavity of the low-wave reinforcement body 3 is supported by an auxiliary reinforcing vertical rib 5. The auxiliary reinforcing vertical rib 5 divides the inner cavity of the low-wave reinforcement body 3 into two parts. The high-wave structure body 2 and the reinforcing vertical rib 4 are processed and formed together. The auxiliary reinforcing vertical rib and the low-wave reinforcement body are processed and formed together. The height of the low-wave reinforcement body is 1 / 2 of the height of the high-wave structure body. The auxiliary reinforcing vertical rib 5 is arranged in the middle of the inner cavity of the low-wave reinforcement body 3, and the auxiliary reinforcing vertical rib 5 and the low-wave reinforcement body 3 are processed and formed together. There is a spacing between the two sides of the low-wave reinforcement body 3 and the wave peaks of the high-wave structure body 2. Preferably, the spacing between the two sides of the low-wave reinforcement body 3 and the high-wave structure body 2 is 1 / 3 - 1 / 2 of the bottom width of the low-wave reinforcement body 3. Preferably it is 1 / 2.

[0027] Scheme 2, as Figure 3 shown, the two sides of the low-wave reinforcement body 3 are connected to the side surfaces of the wave peaks of the high-wave structure body 2. Others are the same as in Scheme 1.

[0028] Scheme 3: As Figure 4 shown, there are two connected semi-circular low-wave reinforcement bodies 3 between the wave peaks of the semi-elliptical high-wave structure body 2, forming a double-wave auxiliary reinforcement structure. The side surface of the double-wave auxiliary reinforcement structure is connected to the side surface of the wave peak of the high-wave structure body 2, forming a complete structure with continuous corrugations. The two low-wave reinforcement bodies are located in the middle of adjacent high-wave structure bodies to ensure the overall stability of the load-bearing structure.

[0029] The winding reinforcement in this application is an HDPE strip formed by a high-wave structure 2 and a single low-wave reinforcement 3 or two low-wave reinforcements 3 arranged staggeredly. The polyethylene pipe 1 is formed by winding and bonding the HDPE strip on a winding forming machine. The vertical superposition joints of the HDPE strip are bonded with a bonding resin to make it not easy to break and crack, ensuring the integrity of the pipe. Of course, this utility model can also be formed by a polyethylene inner pipe and a winding reinforcement wound on the outer surface of the polyethylene inner pipe. It is just that winding the pipe directly with the winding reinforcement is the preferred solution.

[0030] To further enhance the structural reliability of this application, an enhanced ring 6 is laid at the top of the wave crest of the high-wave structure 2. The enhanced ring 6 is preferably made of HDPE high molecular enhanced alloy resin. When the HDPE strip is wound into a pipe, the HDPE high molecular enhanced alloy resin is laid to form a semi-circular strengthening ring of the pipe, so as to increase the impact resistance of the pipe during the process of backfilling sand and soil, and at the same time increase the performance of bearing external loads. Preferably, the thickness of the semi-circular strengthening ring of the laid HDPE alloy resin is 1 / 8 of the height of the high-wave structure.

[0031] For this nano-enhanced multi-wave polyethylene (MNHDPE) spiral drain pipe, during the production process, first produce an HDPE strip with a high-wave structure and a low-wave reinforcement arranged staggeredly, and then wind and form it into a pipe on a winding forming machine for the second time. The vertical superposition joints of the HDPE strip are bonded with a high molecular bonding resin, and its bonding strength is high and it is not easy to break and crack, ensuring the integrity of the pipe. For the convenience of pipe connection and the reliable connection structure, one end of the drain pipe in this application is a frustum-shaped supporting mouth, and the other end is a circular socket and a sealing rubber ring.

[0032] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this patent.

[0033] Although this utility model is described with reference to specific embodiments, such description does not mean a limitation to this utility model. Other variations of the disclosed embodiments can be expected by those skilled in the art with reference to the description of this utility model, and such variations should fall within the scope defined by the appended claims.

Claims

1. A nano-enhanced multi-wave polyethylene spiral drainage pipe, comprising a polyethylene pipe (1) with a winding reinforcement, characterized in that: The winding reinforcement is a multi-wave high-low staggered reinforcement structure formed by sequentially and alternately arranging a high-wave structure body (2) and at least one low-wave reinforcement body (3) on the load-bearing surface structure body. Among them, the inner cavity of the high-wave structure body (2) is supported by a reinforcing vertical rib (4), and the reinforcing vertical rib (4) divides the inner cavity of the high-wave structure body (2) into two parts. The wave height of the high-wave structure body (2) is greater than the wave height of the low-wave reinforcement body (3).

2. The nano-enhanced multi-wave polyethylene spiral drainage pipe according to claim 1, characterized in that: There is a low-wave reinforcement body (3) between the wave crests of adjacent high-wave structure bodies (2), and the inner cavity of the low-wave reinforcement body (3) is supported by an auxiliary reinforcing vertical rib (5), and the auxiliary reinforcing vertical rib (5) divides the inner cavity of the low-wave reinforcement body (3) into two parts.

3. The nano-enhanced multi-wave polyethylene spiral drainage pipe according to claim 2, wherein: The auxiliary reinforcing vertical rib (5) is located in the middle of the inner cavity of the low-wave reinforcement body (3), and the auxiliary reinforcing vertical rib (5) and the low-wave reinforcement body (3) are formed by processing together.

4. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 1, wherein: There is a spacing between the two sides of the low-wave reinforcement body (3) and the wave crests of the high-wave structure body (2), or the two sides of the low-wave reinforcement body (3) are connected to the two sides of the wave crests of the high-wave structure body (2).

5. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 4, characterized in that: The spacing between the two sides of the low-wave reinforcement body (3) and the high-wave structure body (2) is 1 / 3 - 1 / 2 of the bottom width of the low-wave reinforcement body (3).

6. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 1, wherein: There are two connected low-wave reinforcement bodies (3) between the wave crests of adjacent high-wave structure bodies (2), forming a double-wave auxiliary reinforcement structure.

7. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 6, characterized in that: The side surface of the double-wave auxiliary reinforcement structure is connected to the side surface of the wave crest of the high-wave structure body (2), forming a complete structure body with continuous corrugations.

8. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 1, wherein: The cross-section of the high-wave structure body (2) is a semi-elliptical hollow cavity, the cross-section of the low-wave reinforcement body (3) is a semi-circular hollow cavity or a semi-elliptical hollow cavity, the bottom width of the high-wave structure body (2) is 2 / 3 of its height, and the bottom width of the low-wave reinforcement body (3) is 2 / 3 of the bottom width of the high-wave structure body (2).

9. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 1, wherein: The winding reinforcement is an HDPE strip in which the high-wave structure body (2) is staggered with a single low-wave reinforcement body (3) or two low-wave reinforcement bodies (3). The polyethylene pipe (1) is formed by winding and bonding the HDPE strip on a winding forming machine, and the vertical superposition joints of the HDPE strip are bonded with a bonding resin.

10. The nano-enhanced multi-wave polyethylene spiral drain pipe according to claim 1, characterized in that: An enhanced ring (6) is laid at the top of the wave crest of the high-wave structure body (2), and the enhanced ring (6) is made of HDPE high-molecular enhanced alloy resin.

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