Compression-resistant plastic pipeline

Abstract

The utility model discloses a compression-resistant plastic pipeline which comprises an outer pipe and an inner pipe, the hardness of the outer pipe is larger than that of the inner pipe, a cavity is reserved between the outer pipe and the inner pipe, a corrugated structure is arranged on the outer wall of the outer pipe in the length direction, and connecting assemblies are arranged at the two ends of the outer pipe and the two ends of the inner pipe. The utility model relates to the technical field of plastic pipelines, through the hardness difference design of the outer pipe and the inner pipe and the arrangement of the corrugated structure, the anti-pressure capability and the structural stability of the pipeline are obviously improved, the hardness of the outer pipe is larger than that of the inner pipe, and through the design, when the pipeline bears external pressure, the outer pipe can provide better support; the integral pressure resistance is improved, the inner pipe can better protect internal fluid, damage to the pipeline caused by corrosion or other internal factors is prevented, and stress can be better dispersed when the pipeline is subjected to external pressure due to the arrangement of the corrugated structure.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a pressure-resistant plastic pipeline. Background Art

[0002] Plastic pipes are widely used in modern industrial and civil construction due to their lightweight, corrosion-resistant, and easy installation. However, in practice, plastic pipes face various pressure challenges, especially under high pressure or heavy load conditions. Conventional plastic pipes often fail to meet these requirements. Existing plastic pipes lack internal support structures and are prone to deformation during long-term use, shortening their service life. To improve the pressure resistance and service life of plastic pipes while simplifying the installation process, this paper proposes a new type of pressure-resistant plastic pipe. Utility Model Content

[0003] In view of the deficiencies of the existing technology, the utility model provides a pressure-resistant plastic pipe, which solves the problem of poor pressure resistance of the existing plastic pipe.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure-resistant plastic pipe, comprising an outer tube and an inner tube, the hardness of the outer tube is greater than the hardness of the inner tube, a cavity is left between the outer tube and the inner tube, the outer wall of the outer tube is provided with a corrugated structure along the length direction, and connecting components are provided at both ends of the outer tube and the inner tube.

[0005] Preferably, the connecting assembly includes a connecting ring, the end of the outer tube is provided with an inner ring groove for the connecting ring to be embedded, the end of the inner tube is provided with an outer ring groove for the connecting ring to be embedded, the connecting ring is embedded in the inner ring groove and the outer ring groove at the same time, the side wall of the connecting ring is provided with several pairs of countersunk holes along the circumferential direction, and the countersunk holes are provided with countersunk bolts that are screwed to the inner ring groove and the outer ring groove.

[0006] Preferably, a plurality of support rings are provided on the inner wall of the outer tube at intervals along the length direction.

[0007] Preferably, the corrugated structure is a continuous wave crest and wave trough structure formed on the surface of the outer tube along the length direction.

[0008] Preferably, the inner wall of the inner tube is provided with an anti-corrosion layer.

[0009] Beneficial effects

[0010] The utility model provides a pressure-resistant plastic pipe with the following beneficial effects:

[0011] The design of the hardness difference between the outer and inner tubes and the setting of the corrugated structure significantly improve the pressure resistance and structural stability of the pipeline. The outer tube is harder than the inner tube. This design enables the outer tube to provide better support when the pipeline is subjected to external pressure, thereby improving the overall pressure resistance. The inner tube can better protect the internal fluid and prevent corrosion or other internal factors from damaging the pipeline. The setting of the corrugated structure enables the pipeline to better disperse stress when subjected to external pressure. The support rings arranged at intervals along the length of the inner wall of the outer tube can further enhance the structural stability of the pipeline, prevent the pipeline from deformation when under pressure, and improve the overall load-bearing capacity of the pipeline.

[0012] The design of countersunk bolts and connecting rings can quickly connect the inner and outer pipes, improving assembly efficiency. The inner wall of the inner pipe is provided with an anti-corrosion layer, which can effectively prevent the internal fluid from corroding the inner wall of the pipe and extend the service life of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 This is a side structural schematic diagram of the thermal insulation cover of the present invention.

[0015] Figure 3 It is a partial enlarged view of the thermal insulation cover of the present utility model.

[0016] In the figure: 1. Outer tube; 2. Inner tube; 3. Corrugated structure; 4. Connecting ring; 5. Inner ring groove; 6. Outer ring groove; 7. Countersunk hole; 8. Countersunk bolt; 9. Support ring; 10. Anti-corrosion layer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a pressure-resistant plastic pipe, comprising an outer tube 1 and an inner tube 2, the hardness of the outer tube 1 being greater than the hardness of the inner tube 2, a cavity being left between the outer tube 1 and the inner tube 2, the outer wall of the outer tube 1 being provided with a corrugated structure 3 along the length direction, and connecting components being provided at both ends of the outer tube 1 and the inner tube 2.

[0019] By adopting the above technical solution, the different hardness designs of the outer tube 1 and the inner tube 2 enhance the overall compressive performance of the pipeline. The cavity design reduces the weight of the pipeline and provides additional buffer space. The corrugated structure 3 increases the compressive resistance of the pipeline. The connecting assembly ensures the firmness of the pipeline connection.

[0020] This embodiment is further configured such that the connecting assembly includes a connecting ring 4, an inner ring groove 5 is provided at the end of the outer tube 1 for the connecting ring 4 to be embedded, and an outer ring groove 6 is provided at the end of the inner tube 2 for the connecting ring 4 to be embedded, and the connecting ring 4 is embedded in both the inner ring groove 5 and the outer ring groove 6 at the same time, and a plurality of pairs of countersunk holes 7 are provided on the side wall of the connecting ring 4 along the circumferential direction, and countersunk bolts 8 are provided in the countersunk holes 7 to be screwed to the inner ring groove 5 and the outer ring groove 6.

[0021] By adopting the above technical solution, the design of the connecting ring 4 ensures the tightness of the outer tube 1 and the inner tube 2 when connected, and the countersunk head design avoids the influence of the protruding part on the flow inside the pipeline.

[0022] This embodiment is further configured such that a plurality of support rings 9 are provided on the inner wall of the outer tube 1 at intervals along the length direction.

[0023] By adopting the above technical solution, the design of the support ring 9 increases the structural strength of the pipeline and prevents the pipeline from being deformed when subjected to external pressure.

[0024] This embodiment is further configured such that the corrugated structure 3 is a continuous wave crest and wave trough structure formed on the surface of the outer tube 1 along the length direction.

[0025] By adopting the above technical solution, the design of the corrugated structure 3 enables the pipeline to better disperse stress when subjected to external pressure.

[0026] This embodiment is further configured such that an anti-corrosion layer 10 is provided on the inner wall of the inner tube 2 .

[0027] By adopting the above technical solution, the design of the anti-corrosion layer 10 prolongs the service life of the pipeline and reduces the maintenance cost caused by corrosion.

[0028] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0029] Embodiment: During installation, the inner tube 2 is inserted into the outer tube 1, and the inner tube 2 is flush with the ends of the outer tube 1, and the connecting ring 4 is embedded in the inner ring groove 5 at the end of the outer tube 1 and the outer ring groove 6 at the end of the inner tube 2. The connecting ring 4 is fixed in the inner ring groove 5 and the outer ring groove 6 by the countersunk bolt 8 to complete the assembly of the pipeline. Among them, the outer tube 1 has a higher hardness and is used to provide external protection and pressure resistance. The inner tube 2 has a lower hardness and is used to transmit fluid and form a cavity between it and the outer tube 1. Continuous peaks and troughs are formed on the surface of the outer tube 1 to increase the rigidity of the pipeline. The support ring 9 is arranged on the inner wall of the outer tube 1 to enhance the structural stability between the inner and outer tubes 1. The anti-corrosion layer 10 is arranged on the inner wall of the inner tube 2 to prevent the internal fluid from corroding the pipeline.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant plastic pipe, characterized in that: The invention comprises an outer tube (1) and an inner tube (2), wherein the hardness of the outer tube (1) is greater than that of the inner tube (2), a cavity is left between the outer tube (1) and the inner tube (2), an outer wall of the outer tube (1) is provided with a corrugated structure (3) along the length direction, and connecting components are provided at both ends of the outer tube (1) and the inner tube (2).

2. A pressure-resistant plastic pipe according to claim 1, characterized in that: The connecting assembly comprises a connecting ring (4), an inner ring groove (5) for the connecting ring (4) to be embedded in the end of the outer tube (1), an outer ring groove (6) for the connecting ring (4) to be embedded in the end of the inner tube (2), the connecting ring (4) is embedded in the inner ring groove (5) and the outer ring groove (6) at the same time, a plurality of pairs of countersunk holes (7) are provided on the side wall of the connecting ring (4) along the circumferential direction, and countersunk bolts (8) are provided in the countersunk holes (7) to be screwed to the inner ring groove (5) and the outer ring groove (6).

3. A pressure-resistant plastic pipe according to claim 2, characterized in that: The inner wall of the outer tube (1) is provided with a plurality of support rings (9) at intervals along the length direction.

4. A pressure-resistant plastic pipe according to claim 3, characterized in that: The corrugated structure (3) is a continuous wave crest and wave trough structure formed along the length direction on the surface of the outer tube (1).

5. The pressure-resistant plastic pipe according to claim 1, characterized in that: The inner wall of the inner tube (2) is provided with an anti-corrosion layer (10).

Images