High-toughness PPR pipe

Abstract

The utility model provides a high-toughness PPR pipe, which relates to the technical field of PPR pipes and comprises a pipe main body, an antibacterial layer arranged on the inner wall of the pipe main body, a second hot melting connecting layer arranged between the antibacterial layer and the pipe main body, a second anti-impact layer arranged on the outer wall surface of the pipe main body, and a heat preservation layer arranged on the outer wall surface of the second anti-impact layer. A first anti-impact layer is arranged on the outer wall face of the heat preservation layer, a coating layer is arranged on the outer wall face of the first anti-impact layer, and a first hot melting connecting layer is arranged between the first anti-impact layer and the coating layer. When the second hot-melting connecting layer and the first hot-melting connecting layer are in butt joint, the friction force generated by the interaction between the second hot-melting connecting layer and the first hot-melting connecting layer improves the anti-pulling capacity of the joint, and hot-melted glue is reserved in the semispherical grooves of the second hot-melting connecting layer and the first hot-melting connecting layer, so that the anti-pulling capacity of the joint is improved. After butt joint, the joint of the second hot melting connecting layer and the first hot melting connecting layer is connected more stably and is not prone to disengagement, when the whole pipeline is pulled, certain pulling resistance is provided, and the pulling deformation resistance of the pipeline is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PPR pipes, and more specifically, particularly relates to a high-toughness PPR pipe. Background Art

[0002] PPR pipe, also known as polypropylene random copolymer, is a new type of water pipe material and is a widely used water pipe material in current drinking water pipes. It can be used as both cold water pipes and hot water pipes. Because of its non-toxic, light weight, pressure resistance, and corrosion resistance, it is connected by hot melt technology, with convenient construction and good stability;

[0003] Modern decoration water pipes are all constructed in a wall-embedded manner, which belongs to concealed works. Concealed works are a very important issue. If the water pipes leak or burst, it will bring irreparable consequences. Therefore, pipes with good toughness can prevent the pipes from easily breaking or being damaged when the pipes are accidentally impacted or hit by heavy objects. For example, collisions that may occur during building construction or daily use. Good toughness can better cope with the expansion and contraction deformation caused by temperature changes, etc., reduce the risk of rupture caused by thermal expansion and contraction, and enable it to operate stably under different climate conditions. In some earthquake-prone areas, pipes with good toughness can better withstand vibrations and are not easily damaged, ensuring the safety of the pipeline system. During the installation process, it has better bendability and is easier to layout and connect;

[0004] Therefore, improving the toughness of PPR pipes in the existing technology can improve their service life and reduce the probability of maintenance. And the butt joint installation between pipes in the existing technology is through hot melt connection, and the tightness of the connection needs to be improved.

[0005] So, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a high-toughness PPR pipe is provided, with the expectation of achieving a more practical value purpose. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides a high-toughness PPR pipe to solve the above problems.

[0007] The purpose and effect of a high-toughness PPR pipe of the utility model are achieved by the following specific technical means:

[0008] A high-toughness PPR pipe includes a pipe body. An antibacterial layer is provided on the inner wall of the pipe body. A second hot melt connection layer is provided between the antibacterial layer and the pipe body. A second anti-impact layer is provided on the outer wall surface of the pipe body. A heat insulation layer is provided on the outer wall surface of the second anti-impact layer. A first anti-impact layer is provided on the outer wall surface of the heat insulation layer. A coating layer is provided on the outer wall surface of the first anti-impact layer. A first hot melt connection layer is provided between the first anti-impact layer and the coating layer;

[0009] The second heat-melt connection layer and the first heat-melt connection layer are metal wires made of aluminum alloy. The metal wires are in a spring shape, and a number of hemispherical grooves are evenly formed on the surface of the metal wires.

[0010] Furthermore, a wear-resistant coating is provided on the outer wall surface of the coating layer, and the wear-resistant coating preferably uses PETG material.

[0011] Furthermore, the coating layer uses the same material as the pipe body.

[0012] Furthermore, the second impact-resistant layer and the first impact-resistant layer preferably use fiberglass material.

[0013] Furthermore, the heat-insulating layer preferably uses phenolic resin material.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When the second heat-melt connection layer and the first heat-melt connection layer in the utility model are butted, the frictional force generated by the interaction between the two improves the tensile capacity at the joint. Moreover, the molten colloid remains in the hemispherical grooves of the second heat-melt connection layer and the first heat-melt connection layer, making the joint between the second heat-melt connection layer and the first heat-melt connection layer more stable and not easily separated after butting. When the whole pipe is pulled, it provides a certain tensile capacity and improves the tensile deformation capacity of the pipe. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is a cross-sectional view of the utility model.

[0018] Figure 3 is a schematic diagram of the surface of the metal wire of the utility model.

[0019] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0020] 1, antibacterial layer; 2, second heat-melt connection layer; 3, pipe body; 4, second impact-resistant layer; 5, heat-insulating layer; 6, first impact-resistant layer; 7, first heat-melt connection layer; 8, coating layer; 9, wear-resistant coating; 10, hemispherical groove. Detailed Embodiment

[0021] The following further describes in detail the embodiments of the utility model with reference to the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0022] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment:

[0025] Embodiment:

[0026] As shown in the attached Figure 1 to the attached Figure 3 figure:

[0027] A highly ductile PPR pipe, comprising a pipe body 3. An antibacterial layer 1 is provided on the inner wall of the pipe body 3. A second hot melt connection layer 2 is provided between the antibacterial layer 1 and the pipe body 3. A second impact-resistant layer 4 is provided on the outer wall surface of the pipe body 3. A heat-insulating layer 5 is provided on the outer wall surface of the second impact-resistant layer 4. A first impact-resistant layer 6 is provided on the outer wall surface of the heat-insulating layer 5. A coating layer 8 is provided on the outer wall surface of the first impact-resistant layer 6. A first hot melt connection layer 7 is provided between the first impact-resistant layer 6 and the coating layer 8;

[0028] The second hot melt connection layer 2 and the first hot melt connection layer 7 are metal wires made of aluminum alloy. The metal wires are in a spring shape, and a plurality of hemispherical grooves 10 are evenly formed on the surface of the metal wires;

[0029] Aluminum alloy material. Aluminum alloy has a certain flexibility, a relatively small density, and a low cost among the same type of materials. The second hot melt connection layer cooperates with the first hot melt connection layer for use in hot melt butt joint. After the pipeline is butt-jointed by hot melt, the frictional force generated by the interaction between the two makes the connection at the joint more stable and not easy to break away. And when the whole pipeline is pulled, it provides a certain anti-pulling ability and improves the anti-pulling deformation ability of the pipeline.

[0030] As shown in the attached Figure 1 to the attachedFigure 3 As shown, in some embodiments, the outer wall surface of the coating layer 8 is provided with a wear-resistant coating 9, and the wear-resistant coating 9 preferably uses PETG material.

[0031] PETG is a transparent, tough and weather-resistant plastic material, which can improve the wear resistance, weather resistance and scratch and stain resistance of the pipeline, can resist the erosion of ultraviolet rays, temperature changes and chemical substances, extend the service life of the PPR pipe, make it more suitable for use under various environmental conditions, belongs to an environmentally friendly material, does not contain harmful substances, and meets the environmental protection requirements.

[0032] As shown in the appendix Figure 1 to the appendix Figure 3 As shown, in some embodiments, the coating layer 8 is made of the same material as the pipe body 3.

[0033] It is used to wrap outside the first hot melt connection layer and is used during the hot melt butt joint of the pipeline. After melting, it fills between the first hot melt connection layer and the second hot melt connection layer, making the connection between the first hot melt connection layer and the second hot melt connection layer more tight.

[0034] As shown in the appendix Figure 1 to the appendix Figure 3 As shown, in some embodiments, the second impact-resistant layer 4 and the first impact-resistant layer 6 preferably use fiberglass material.

[0035] Improve the strength and impact resistance of the PPR pipe, that is, improve the toughness of the PPR pipe.

[0036] As shown in the appendix Figure 1 to the appendix Figure 3 As shown, in some embodiments, the insulation layer 5 preferably uses phenolic resin material.

[0037] Phenolic resin can provide good heat insulation and fire protection performance, is not easy to burn, and has a certain fire protection ability.

[0038] The specific usage and function of this embodiment are as follows:

[0039] When two pipes are hot melt butt-jointed, the inner walls of one pipe and the other pipe are heated simultaneously, so that the antibacterial layer on the inner wall of one pipe is melted, causing the second hot melt connection layer therein to be exposed. At the same time, after the wear-resistant coating and the coating layer on the outer wall of the other pipe are melted, the first hot melt connection layer on the inner wall surface of the coating layer is exposed. At this time, the two pipes are butted, and the frictional force generated by the interaction between the second hot melt connection layer and the first hot melt connection layer, and there is molten colloid left in the hemispherical grooves of the second hot melt connection layer and the first hot melt connection layer. After butt joint, the connection between the second hot melt connection layer and the first hot melt connection layer is more stable and not easy to break away. When the whole pipeline is pulled, it provides a certain anti-pulling ability and improves the anti-pulling deformation ability of the pipeline.

[0040] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A high-toughness PPR pipe, comprising a pipe body (3), characterized in that: An antibacterial layer (1) is provided on the inner wall of the pipe body (3). A second hot melt connection layer (2) is provided between the antibacterial layer (1) and the pipe body (3). A second impact-resistant layer (4) is provided on the outer wall surface of the pipe body (3). A heat-insulating layer (5) is provided on the outer wall surface of the second impact-resistant layer (4). A first impact-resistant layer (b) is provided on the outer wall surface of the heat-insulating layer (5). A coating layer (8) is provided on the outer wall surface of the first impact-resistant layer (6). A first hot melt connection layer (7) is provided between the first impact-resistant layer (6) and the coating layer (8); The second hot melt connection layer (2) and the first hot melt connection layer (7) are metal wires made of aluminum alloy. The metal wires are in a spring shape, and a number of hemispherical grooves (10) are evenly formed on the surface of the metal wires.

2. The high-toughness PPR pipe according to claim A, characterized in that: A wear-resistant coating (9) is provided on the outer wall surface of the coating layer (8). The wear-resistant coating (9) preferably uses PETG material.

3. The high-toughness PPR pipe according to claim A, wherein: The coating layer (8) uses the same material as the pipe body (3).

4. The high-toughness PPR pipe according to claim A, characterized in that: The second impact-resistant layer (4) and the first impact-resistant layer (6) preferably use fiberglass material.

5. The high-toughness PPR pipe according to claim A, characterized in that: The heat-insulating layer (5) preferably uses phenolic resin material.

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