Pressure-resistant and crack-resistant PE solid-wall pipe

Abstract

The utility model belongs to the technical field of PE solid-wall pipes, and particularly relates to a pressure-resistant and crack-resistant PE solid-wall pipe which comprises an outer pipe body, a supporting piece and an inner pipe body, the supporting piece is embedded in the inner side of the outer pipe body, the supporting piece is sleeved on the outer side of the inner pipe body, the supporting piece comprises a radial supporting plate and an annular supporting plate, and the radial supporting plate and the annular supporting plate are arranged on the outer side of the inner pipe body. The number of the annular supporting plates is multiple, the annular supporting plates are arranged in the axial direction of the outer pipe body and the inner pipe body at equal intervals, the two ends of each radial supporting plate are fixed to the two adjacent annular supporting plates, and the thickness of each annular supporting plate is gradually reduced in the direction from the middle to the two ends. Through combined use of the radial supporting plates and the annular supporting plates, the pressure in the pipeline is effectively dispersed, and the compression resistance of the pipeline is remarkably improved; due to the gradually-changed thickness design of the annular supporting plate, the supporting strength of the pipeline is guaranteed, cracks are effectively avoided through an elastic deformation mechanism, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of PE solid wall pipe technology, specifically relating to a PE solid wall pipe that is resistant to pressure and cracking. Background Technology

[0002] Utility model patent CN221257979U discloses a pressure-resistant and crack-resistant PE solid-wall pipe, including a pipe body, multiple sets of fixing grooves located on the outer side of the pipe body, and a steel ring disposed inside the fixing grooves. The pipe body includes a rubber layer disposed on the outer side of the pipe body, and a wear-resistant layer disposed on the outer side of the rubber layer. The steel ring has multiple sets of mounting holes inside, and a limiting groove is provided on the outer wall of the steel ring at the position of the mounting hole. This utility model creates fixing grooves by grooving the outer wall of the pipe body, installing the steel ring inside the fixing grooves, and inserting the mounting post inside the fixing groove into the mounting hole to limit the movement between the steel ring and the fixing groove. A fixing bolt is installed inside the mounting groove, and the limiting block and the limiting groove are engaged to fix the steel ring inside the fixing groove. The steel ring supports the pipe body, and the fixation between the steel ring and the pipe body prevents the internal collapse of the pipe body, thus improving the pressure resistance and crack resistance of the PE solid-wall pipe.

[0003] However, the above-mentioned mechanism has the following problems: when the pressure inside the pipeline increases and there is a tendency for it to expand and deform outward, the position of the pipe body with the steel ring is limited by the steel ring, while the pipe body around the steel ring can deform outward. This deformation tendency will cause cracks in the pipe body at the edge of the steel ring due to the inconsistent amount of pipe deformation, resulting in a reduction in the service life of the pipeline. In addition, due to the limitations of pipeline use and transportation costs, the steel rings need to be installed at intervals in the pipe body. This installation method will result in a lack of support between adjacent steel rings. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a pressure-resistant and crack-resistant PE solid-wall pipe, which solves the problems of cracks easily forming on the edge of the steel ring and reducing the service life of the existing PE solid-wall pipe after using steel rings to improve its pressure and crack resistance, as well as the lack of support between adjacent steel rings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure-resistant and crack-resistant PE solid-wall pipe, comprising an outer pipe body, a support member, and an inner pipe body. The support member is embedded in the inner side of the outer pipe body and is fitted onto the outer side of the inner pipe body. The support member includes a radial support plate and a circumferential support plate. There are multiple circumferential support plates, which are equidistantly spaced along the axial direction of the outer and inner pipe bodies. The two ends of the radial support plate are fixed to two adjacent circumferential support plates. The thickness of the circumferential support plate gradually decreases from the middle to both ends.

[0006] The beneficial effects of this utility model are as follows: by using the combination of radial support plate and circumferential support plate, the pressure inside the pipeline is effectively dispersed, and the pressure resistance of the pipeline is significantly improved; the gradual thickness design of the circumferential support plate not only ensures the support strength of the pipeline, but also effectively avoids the generation of cracks through the elastic deformation mechanism, thus extending the service life of the pipeline.

[0007] In order to effectively support the pipe between adjacent circumferential support plates by using radial support plates;

[0008] As a further improvement to the above technical solution: the radial support plates are multiple and are equidistantly spaced around the axes of the outer tube and the inner tube.

[0009] The beneficial effects of this improvement are: multiple radial support plates arranged at equal intervals can effectively support the inner tube body on the inside, avoiding excessive deformation of the inner tube body between adjacent circumferential support plates.

[0010] In order to effectively improve the support strength of the radial support plate;

[0011] As a further improvement to the above technical solution: the radial support plate is bent into a reinforcing rib, and the two ends of the reinforcing rib are flush with the two ends of the radial support plate.

[0012] The beneficial effect of this improvement is that the addition of reinforcing ribs can effectively improve the structural strength of the radial support plate.

[0013] To further improve the support strength of the radial support plate;

[0014] As a further improvement to the above technical solution: the number of reinforcing ribs is two and they are arranged in parallel to each other, so that the radial support plate is formed into a W-shaped steel structure.

[0015] The beneficial effects of this improvement are as follows: the radial support plate is formed into a W-shaped steel structure by the two bent reinforcing ribs, which effectively improves the bending resistance of the radial support plate and increases the support strength of the radial support plate for the pipeline.

[0016] To quickly and accurately position and install the support components;

[0017] As a further improvement to the above technical solution: the inner wall of the outer tube is provided with a first mounting groove and a second mounting groove, and the inner sides of the first mounting groove and the second mounting groove are respectively fitted with a radial support plate and a circumferential support plate.

[0018] The beneficial effects of this improvement are: the mounting slots 1 and 2 on the outer tube can be used to quickly position and install the radial support plate and the circumferential support plate.

[0019] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the outer tube body in this utility model;

[0022] Figure 3 This is a schematic diagram of the support component in this utility model;

[0023] Figure 4 This is a schematic diagram of the circumferential support plate in this utility model;

[0024] In the diagram: 1. Outer tube; 11. Mounting slot one; 12. Mounting slot two; 2. Support component; 21. Radial support plate; 22. Circumferential support plate; 23. Reinforcing rib; 3. Inner tube. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0026] Example 1:

[0027] like Figure 1As shown in Figure 4: A pressure- and crack-resistant PE solid-wall pipe includes an outer pipe body 1, a support member 2, and an inner pipe body 3. The support member 2 is embedded inside the outer pipe body 1 and fitted onto the outside of the inner pipe body 3. The support member 2 includes radial support plates 21 and circumferential support plates 22. Multiple circumferential support plates 22 are equidistantly spaced along the axial direction of the outer pipe body 1 and the inner pipe body 3. The two ends of the radial support plate 21 are fixed to two adjacent circumferential support plates 22. The thickness of plate 22 gradually decreases from the middle to both ends. The combination of radial support plate 21 and circumferential support plate 22 effectively disperses the internal pressure of the pipe, significantly improving its pressure resistance. The gradually changing thickness design of the circumferential support plate 22 not only ensures the support strength of the pipe but also effectively avoids cracking through an elastic deformation mechanism, extending the pipe's service life. Multiple radial support plates 21 are equidistantly spaced around the axes of the outer pipe body 1 and the inner pipe body 3. These equidistant radial support plates 21 effectively support the inner pipe body 3, preventing excessive deformation between adjacent circumferential support plates 22. Reinforcing ribs 23 are bent into the radial support plate 21, with both ends of the reinforcing ribs 23 flush with the ends of the radial support plate 21. The reinforcing ribs 23 effectively improve the structural strength of the radial support plate 21. Two reinforcing ribs 23 are arranged parallel to each other, forming the radial support plate 21 into a W-shaped steel structure, after two bends... The reinforcing rib 23 shapes the radial support plate 21 into a W-shaped steel structure, effectively improving the bending resistance of the radial support plate 21 and its support strength for the pipeline. The inner wall of the outer pipe body 1 is provided with a first mounting groove 11 and a second mounting groove 12. The inner sides of the first mounting groove 11 and the second mounting groove 12 are respectively fitted with the radial support plate 21 and the circumferential support plate 22. The first mounting groove 11 and the second mounting groove 12 on the outer pipe body 1 can quickly position and install the radial support plate 21 and the circumferential support plate 22.

[0028] The working principle of this technical solution is as follows: the radial support plate 21 and the circumferential support plate 22 are respectively embedded in the mounting groove 11 and the mounting groove 12, and are attached to the outer surface of the inner tube 3; when the inner tube 3 is affected by the internal pressure and tends to deform outward, the circumferential support plate 22 provides support for the inner tube 3 in the circumferential direction, and the radial support plate 21, which is connected to the circumferential support plate 22 at both ends, provides support for the inner tube 3 between adjacent circumferential support plates 22, and the setting of the reinforcing rib 23 further improves the bending resistance of the radial support plate 21; since the thickness of the circumferential support plate 22 gradually decreases from the middle to both ends, the circumferential support plate 22 can provide high-strength support for the inner tube 3 from the thicker middle part during the outward expansion of the inner tube 3, while the thinner edge part can generate elastic deformation, effectively avoiding cracks in the inner tube 3 at the edge of the circumferential support plate 22.

[0029] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A pressure- and crack-resistant solid-wall PE pipe, characterized in that: The device includes an outer tube (1), a support member (2), and an inner tube (3). The support member (2) is embedded inside the outer tube (1) and fitted onto the outside of the inner tube (3). The support member (2) includes a radial support plate (21) and a circumferential support plate (22). There are multiple circumferential support plates (22), which are equidistantly spaced along the axial direction of the outer tube (1) and the inner tube (3). The two ends of the radial support plate (21) are fixed to two adjacent circumferential support plates (22). The thickness of the circumferential support plate (22) gradually decreases from the middle to both ends.

2. The compression-resistant and crack-resistant solid-wall PE pipe according to claim 1, characterized in that: The radial support plates (21) are multiple and are equidistantly spaced around the axes of the outer tube (1) and the inner tube (3).

3. The compression-resistant and crack-resistant solid-wall PE pipe according to claim 1, characterized in that: The radial support plate (21) is bent into a reinforcing rib (23), and the two ends of the reinforcing rib (23) are flush with the two ends of the radial support plate (21).

4. The compression-resistant and crack-resistant solid-wall PE pipe according to claim 3, characterized in that: The number of the reinforcing ribs (23) is two and they are arranged in parallel to each other, so that the radial support plate (21) is formed into a steel structure.

5. A pressure-resistant and crack-resistant solid-wall PE pipe according to claim 1, characterized in that: The inner wall of the outer tube (1) is provided with a first mounting groove (11) and a second mounting groove (12). The inner sides of the first mounting groove (11) and the second mounting groove (12) are respectively fitted with a radial support plate (21) and a circumferential support plate (22).

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