Anti-compression and anti-deformation PE pipe

Abstract

The utility model relates to the technical field of PE (polyethylene) pipes, and discloses a pressure-resistant and deformation-resistant PE pipe which comprises a PE inner core layer and a pressure-resistant and deformation-resistant layer connected to the outer wall of the PE inner core layer in a matched manner, the compression-resistant anti-deformation layer comprises a metal inner layer, a metal outer layer, an elastic buffer piece and an elastic buffer layer. The metal inner layer is adaptively connected to the outer wall of the PE inner core layer; the metal outer layer sleeves the metal inner layer and is connected with the metal inner layer through the elastic buffer piece; the plurality of elastic buffer pieces are uniformly distributed around the central axis of the metal inner layer to form an elastic buffer group; the plurality of elastic buffer groups are uniformly distributed along the length direction of the metal inner layer; and an elastic buffer material is filled in a gap space between the metal inner layer and the metal outer layer to form the elastic buffer layer. According to the pressure-resistant and deformation-resistant PE pipe, through the multi-layer structural design, the pressure resistance and the deformation resistance are remarkably improved, and the pressure-resistant and deformation-resistant PE pipe is suitable for various complex and changeable engineering environments.

Description

Technical Field

[0001] This utility model relates to the field of PE pipe technology, and in particular to a PE pipe that is resistant to pressure and deformation. Background Technology

[0002] Traditional PE pipes, or polyethylene pipes, are widely used in water supply and drainage, gas transmission, and agricultural irrigation due to their excellent corrosion resistance, flexibility, and economy. However, traditional PE pipes are prone to deformation and even rupture when faced with significant external pressure.

[0003] To address the existing problems, Chinese patent CN207394140U discloses a pressure-resistant and environmentally friendly PE pipe, comprising a pipe frame and an inner pipe body. The inner pipe body includes a central layer with pressure-resistant layers on both sides. The pressure-resistant layers are made of crushed waste cardboard and are bonded to the central layer. A wax layer is provided on the outer surface of the pressure-resistant layers, and a fiberglass layer is provided on the surface of the wax layer. The central layer includes a central frame with a heat storage layer inside, and the central frame is integrally formed with the pipe frame. A protective mesh, made of woven stainless steel wire, is fitted onto the surface of the pipe frame. This pressure-resistant and environmentally friendly PE pipe has high pressure resistance. However, because this pressure-resistant and environmentally friendly PE pipe combines a central layer, pressure-resistant layers, wax layers, and fiberglass layers, and uses crushed waste cardboard to make the pressure-resistant layers, the pressure-resistant layers are prone to cracking under significant external pressure. This results in poor structural resistance to pressure and deformation, poor overall strength and rigidity, and unsuitability for various complex and variable engineering environments. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of the prior art and provide a PE pipe that is resistant to pressure and deformation.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A pressure-resistant and deformation-resistant PE pipe includes a PE inner core layer and a pressure-resistant and deformation-resistant layer adapted and connected to the outer wall of the PE inner core layer. The PE inner core layer serves as the main structure of the pipe, providing basic fluid transport functions, and is protected by the pressure-resistant and deformation-resistant layer. The pressure-resistant and deformation-resistant layer includes:

[0007] A metal inner layer is adapted to be connected to the outer wall of the PE inner core layer; the metal inner layer can be made of high-strength metal materials, such as stainless steel or other alloy steel, or aluminum alloy, to provide initial compressive support.

[0008] The system comprises a metal outer layer and elastic buffer components. The metal outer layer is fitted over the metal inner layer and connected via the elastic buffer components. Several elastic buffer components are evenly distributed around the central axis of the metal inner layer to form an elastic buffer group. Several elastic buffer groups are evenly distributed along the length of the metal inner layer. The metal outer layer can also be made of high-strength metal materials, such as stainless steel or other alloy steels, or aluminum alloy. Different metal materials can be selected according to actual needs to further enhance the pipeline's pressure resistance. The elastic buffer components effectively absorb and disperse external pressure, reducing the direct impact between the metal inner and outer layers, thereby protecting the pipeline from damage.

[0009] An elastic buffer layer is formed by filling the gap between the inner and outer metal layers with an elastic buffer material. This elastic buffer layer further enhances the flexibility of the pipe while providing additional pressure-resistant cushioning. A glass fiber reinforced plastic layer covers the outer wall of the outer metal layer.

[0010] Furthermore, the elastic buffer includes an inner support, an outer support, a spring, a sliding rod, and a sleeve. The inner and outer supports are respectively fitted and attached to the outer wall of the inner metal layer and the outer wall of the outer metal sleeve. The sliding rod is connected to the outer support. The sleeve is connected to the inner support and is slidably connected to the sliding rod. Two springs are respectively connected between the inner and outer supports and located on the left and right sides of the sliding rod. The inner and outer supports respectively connect to the outer walls of the inner and outer metal layers. When subjected to external pressure impact, the sliding rod can slide within the sliding cavity of the sleeve, the outer support moves closer to the inner support, and the spring is compressed. When not subjected to external pressure impact, the spring elastically returns to its original position, and the outer support and sliding rod move back to their original positions. This elastic buffer effectively absorbs and disperses external pressure, reducing direct impact between the inner and outer metal layers, thereby protecting the pipeline from damage.

[0011] Furthermore, both the inner and outer supports are arc-shaped sheet structures.

[0012] Furthermore, the elastic buffer is made of sheet metal; the two ends of the spring are respectively welded to the inner support and the outer support.

[0013] Furthermore, the pressure-resistant and deformation-resistant layer also includes a glass fiber reinforced plastic layer covering the outer wall of the metal outer layer. The glass fiber reinforced plastic layer not only possesses excellent corrosion resistance and wear resistance, but also significantly improves the overall strength and rigidity of the pipeline, effectively resisting deformation caused by external pressure.

[0014] Furthermore, the thickness of the glass fiber reinforced plastic layer is less than the thickness of the inner metal layer and the outer metal layer.

[0015] Furthermore, the inner and outer metal layers are made of stainless steel.

[0016] Furthermore, the inner and outer metal layers are made of aluminum alloy.

[0017] Furthermore, the elastic cushioning material is rubber, pearl cotton, or polyethylene foam.

[0018] Furthermore, each of the aforementioned elastic buffer groups has 3 or 4.

[0019] Compared with existing technologies, this utility model has the following advantages:

[0020] This invention improves upon the PE inner core layer and the pressure-resistant and deformation-resistant layer by further refining the pressure-resistant and deformation-resistant layer. First, the design of the metal inner and outer layers provides excellent pressure-resistant support for the pipeline. Second, the quantity, position, and connection of the elastic buffer components and elastic buffer layers effectively absorb and disperse external pressure, protecting the pipeline from damage and extending its service life. The addition of the glass fiber reinforced plastic layer improves the pipeline's corrosion resistance and wear resistance, while also enhancing its overall strength and rigidity. Through this multi-layered structural design, a significant improvement in pressure resistance and deformation resistance is achieved, making it suitable for various complex and variable engineering environments. Attached Figure Description

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the pressure-resistant and deformation-resistant PE pipe of this utility model.

[0023] Figure 2 This is a top view of the PE pipe with pressure resistance and deformation resistance of this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the structure formed by the metal inner layer, the metal outer layer, and the elastic buffer group of this utility model.

[0025] Figure 4 yes Figure 3 The diagram shows the disassembled three-dimensional structure.

[0026] Figure 5 This is a three-dimensional structural diagram of the elastic buffer component of this utility model.

[0027] The image includes:

[0028] PE inner core layer 1, compression-resistant and deformation-resistant layer 2, metal inner layer 21, metal outer layer 22, elastic buffer 23, elastic buffer group 230, inner support 231, outer support 232, spring 233, slide bar 234, sleeve 235, elastic buffer layer 24, glass fiber reinforced plastic layer 25. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0030] like Figures 1 to 5As shown, a pressure-resistant and deformation-resistant PE pipe includes a PE inner core layer 1 and a pressure-resistant and deformation-resistant layer 2 adapted and connected to the outer wall of the PE inner core layer 1. The PE inner core layer 1 serves as the main structure of the pipe, providing basic fluid transport functions, and is protected by the pressure-resistant and deformation-resistant layer 2. The pressure-resistant and deformation-resistant layer 2 includes a metal inner layer 21, a metal outer layer 22, an elastic buffer element 23, an elastic buffer layer 24, and a glass fiber reinforced plastic layer 25. The metal inner layer 21, adapted and connected to the outer wall of the PE inner core layer 1, can be made of high-strength metal materials, such as stainless steel or other alloy steels, or aluminum alloy, to provide initial pressure resistance. The metal outer layer 22 is fitted onto the metal inner layer 21 and connected by the elastic buffer element 23. The metal outer layer 22 can also be made of high-strength metal materials, such as stainless steel or other alloy steels, or aluminum alloy; different metal materials can be selected according to actual needs to further enhance the pipe's pressure resistance. Several elastic buffer elements 23 are evenly distributed around the central axis of the inner metal layer 21 to form an elastic buffer group 230; each elastic buffer group 230 has 3 or 4 elements, and in this embodiment, each elastic buffer group 230 has 3 elements. Of course, the elastic buffer groups 230 can also be reasonably arranged according to needs. The elastic buffer elements 23 can effectively absorb and disperse external pressure, reduce the direct impact between the inner metal layer 21 and the outer metal layer 22, thereby protecting the pipeline from damage. The several elastic buffer groups 230 are evenly distributed along the length direction of the inner metal layer 21, which can ensure that the entire pipeline can obtain uniform pressure resistance protection in the length direction. The gap space between the inner metal layer 21 and the outer metal layer 22 is filled with elastic buffer material to form the elastic buffer layer 24. The filled elastic buffer material, such as rubber, polyurethane, pearl cotton, polyethylene foam, etc., forms a good elastic buffer layer 24. This elastic buffer layer 24 can further enhance the flexibility of the pipeline, while providing additional pressure resistance and buffering effect. A glass fiber reinforced plastic layer 25 is applied to the outer wall of the metal outer layer 22. The glass fiber reinforced plastic layer 25 not only possesses excellent corrosion resistance and wear resistance, but also significantly improves the overall strength and rigidity of the pipe, effectively resisting deformation caused by external pressure.

[0031] Based on the PE inner core layer 1 and the pressure-resistant and deformation-resistant layer 2, the pressure-resistant and deformation-resistant layer 2 is improved by combining an inner metal layer 21, an outer metal layer 22, an elastic buffer element 23, an elastic buffer layer 24, and a glass fiber reinforced plastic layer 25. First, the design of the inner metal layer 21 and the outer metal layer 22 provides good pressure resistance for the pipeline. Second, the quantity, position, and connection of the elastic buffer element 23 and the elastic buffer layer 24 effectively absorb and disperse external pressure, protect the pipeline from damage, and extend its service life. The addition of the glass fiber reinforced plastic layer 25 improves the pipeline's corrosion resistance and wear resistance, while also enhancing its overall strength and rigidity. In this way, through multi-layer structural design, a significant improvement in pressure resistance and deformation resistance is achieved, making it suitable for various complex and variable engineering environments.

[0032] In this embodiment, the elastic buffer 23 includes an inner support 231, an outer support 232, a spring 233, a sliding rod 234, and a sleeve 235. The inner support 231 and the outer support 232 are respectively fitted and attached to the outer wall of the inner metal layer 21 and the outer wall of the outer metal layer 22. The sliding rod 234 is connected to the outer support 232. The sleeve 235 is connected to the inner support 231 and is slidably connected to the sliding rod 234. The two springs 233 are respectively connected between the inner support 231 and the outer support 232 and are located on the left and right sides of the sliding rod 234. The inner support 231 and the outer support 232 are used to connect to the outer wall of the inner metal layer 21 and the outer wall of the outer metal layer 22, respectively. When subjected to external pressure impact, the sliding rod 234 can slide in the sliding cavity of the sleeve 235, the outer support 232 moves closer to the inner support 231, and the springs 233 are compressed. When not subjected to external pressure impact, the spring 233 elastically resets, and the outer support 232 and slide bar 234 move back to their original positions. This elastic buffer 23 effectively absorbs and disperses external pressure, reducing the direct impact between the inner metal layer 21 and the outer metal layer 22, thereby protecting the pipeline from damage.

[0033] To better achieve connection stability between the inner support 231 and the outer support 232, both the inner support 231 and the outer support 232 are arc-shaped sheet structures. This design of the arc-shaped sheet structure of the inner support 231 and the outer support 232 allows for better contact with the outer wall of the tubular metal inner layer 21 and the inner wall of the metal outer layer 22, thus achieving structural connection stability.

[0034] Preferably, the elastic buffer 23 is made of sheet metal; the two ends of the spring 233 are respectively welded to the inner support 231 and the outer support 232, which has a simple structure and stable connection.

[0035] In this embodiment, the thickness of the glass fiber reinforced plastic layer 25 is less than the thickness of the inner metal layer 21 and the outer metal layer 22. As the outermost layer, the glass fiber reinforced plastic layer 25 not only possesses excellent corrosion resistance and wear resistance but also significantly improves the overall strength and rigidity of the pipeline, effectively resisting deformation caused by external pressure and providing good protection for the interior of the glass fiber reinforced plastic layer 25. Furthermore, designing the thickness of both the inner metal layer 21 and the outer metal layer 22 to be thicker than the glass fiber reinforced plastic layer 25 further enhances the pipeline's pressure resistance, significantly improving its overall strength and rigidity, and effectively resisting deformation caused by external pressure.

[0036] In summary, this utility model embodiment provides a pressure-resistant and deformation-resistant PE pipe. Based on the PE inner core layer 1 and the pressure-resistant and deformation-resistant layer 2, the pressure-resistant and deformation-resistant layer 2 is improved by combining an inner metal layer 21, an outer metal layer 22, elastic buffer elements 23, elastic buffer layers 24, and a glass fiber reinforced plastic layer 25. First, the design of the inner metal layer 21 and the outer metal layer 22 provides good pressure resistance for the pipe. Second, the quantity, position, and connection of the elastic buffer elements 23 and the elastic buffer layers 24 effectively absorb and disperse external pressure, protecting the pipe from damage and extending its service life. The addition of the glass fiber reinforced plastic layer 25 improves the pipe's corrosion resistance and wear resistance, while also enhancing its overall strength and rigidity. This multi-layered structural design achieves a significant improvement in pressure resistance and deformation resistance, making it suitable for various complex and changing engineering environments.

[0037] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A pressure-resistant and deformation-resistant PE pipe, comprising a PE inner core layer and a pressure-resistant and deformation-resistant layer adapted and connected to the outer wall of the PE inner core layer; characterized in that, The compression-resistant and deformation-resistant layer includes: A metal inner layer, which is adapted to be connected to the outer wall of the PE inner core layer; A metal outer layer and an elastic buffer; the metal outer layer is fitted onto the metal inner layer and connected by the elastic buffer; a plurality of the elastic buffers are evenly arranged around the central axis of the metal inner layer to form an elastic buffer group; a plurality of the elastic buffer groups are evenly arranged along the length direction of the metal inner layer. An elastic buffer layer is formed by filling the gap between the inner metal layer and the outer metal layer with an elastic buffer material.

2. The PE pipe with pressure resistance and deformation resistance according to claim 1, characterized in that, The elastic buffer includes an inner support, an outer support, a spring, a sliding rod, and a sleeve; the inner support and the outer support are respectively fitted and attached to the outer wall of the inner metal layer and the outer wall of the outer metal layer; the sliding rod is connected to the outer support; the sleeve is connected to the inner support and is fitted and slidably connected to the sliding rod; the two springs are respectively connected between the inner support and the outer support and are located on the left and right sides of the sliding rod.

3. The PE pipe with pressure resistance and deformation resistance according to claim 2, characterized in that, Both the inner and outer supports are arc-shaped sheet structures.

4. The PE pipe with pressure resistance and deformation resistance according to claim 2, characterized in that, The elastic buffer is made of sheet metal; the two ends of the spring are respectively welded to the inner support and the outer support.

5. The pressure-resistant and deformation-resistant PE pipe according to claim 1 or 2, characterized in that, The compression-resistant and deformation-resistant layer also includes a glass fiber reinforced plastic layer covering the outer wall of the metal outer layer.

6. The PE pipe with pressure resistance and deformation resistance according to claim 5, characterized in that, The thickness of each glass fiber reinforced plastic layer is less than the thickness of the inner metal layer and the outer metal layer.

7. The PE pipe with pressure resistance and deformation resistance according to claim 1, characterized in that, The inner and outer metal layers are made of stainless steel.

8. The PE pipe with pressure resistance and deformation resistance according to claim 1, characterized in that, The inner and outer metal layers are made of aluminum alloy.

9. The PE pipe with pressure resistance and deformation resistance according to claim 1, characterized in that, The elastic cushioning material is rubber, pearl cotton, or polyethylene foam.

10. The pressure-resistant and deformation-resistant PE pipe according to claim 1, characterized in that, Each of the aforementioned elastic buffer groups has 3 or 4.

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