Flame-retardant PE threading pipe

By incorporating a combination of pressure-resistant balls, anti-slip sleeves, flame-retardant layers, corrosion-resistant layers, and outer protective layers into PE conduits, the problems of short service life and poor cable stability of PE conduits are solved, achieving corrosion resistance, flame retardancy, and impact resistance, thus ensuring the stability and safety of the cabling system.

CN224264612UActive Publication Date: 2026-05-19LANGFANG XINTAO PLASTIC PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANGFANG XINTAO PLASTIC PRODUCTS CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing PE conduits lack adequate protective structures, resulting in short service life and affecting the stability and integrity of cables.

Method used

It adopts a combination design of pressure-resistant balls, anti-slip sleeves, flame-retardant layers, corrosion-resistant layers and outer protective layers. The pressure-resistant balls disperse external pressure, the anti-slip sleeves increase friction, the flame-retardant layers improve fire resistance, the corrosion-resistant layers resist chemical erosion, and the outer protective layers buffer impact.

Benefits of technology

It effectively protects cables from external forces, prevents conduit deformation and wear, extends service life, improves flame retardant performance, resists corrosion and impact, and ensures the stability and safety of the cabling system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model, which relates to the technical field of the flame-retardant PE threading pipe, discloses a flame-retardant PE threading pipe comprising a PE threading pipe main body. The outer side wall of the PE threading pipe main body is movably connected with a plurality of inner fixing sleeves, the interiors of the inner fixing sleeves are fixedly connected with a plurality of compression-resistant balls, and the outer sides of the inner fixing sleeves are movably connected with antiskid sleeves; a plurality of front limiting sleeves are movably connected to the front ends of the outer sides of the anti-skid sleeves, positioning rods are fixedly connected to the upper and lower ends of the rear sides of the front limiting sleeves, and positioning rod through holes are slotted in the middles of the interiors of the positioning rods; a plurality of rear limiting sleeves are movably connected to the rear end of the outer side of the anti-skid sleeve, and positioning grooves are formed in the upper side and the lower side of the front surface of each rear limiting sleeve; the interior of the positioning rod through hole is in threaded connection with a fixing bolt; a threading groove is formed in the middle of the interior of the PE threading pipe body, the outer surface of the threading groove is fixedly connected with an inner protection layer, and the outer surface of the inner protection layer is fixedly connected with a flame-retardant layer.
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Description

Technical Field

[0001] This utility model relates to the field of flame-retardant PE conduit technology, specifically a flame-retardant PE conduit. Background Technology

[0002] PE conduit is a commonly used protective conduit for electrical wires and cables. Its main applications include: electrical wiring: widely used in electrical wiring to protect wires and cables and ensure line safety; construction: suitable for conduits concealed in walls, buried underground in non-combustible materials, and for conduits used in ordinary residential buildings such as rural buildings; and high-risk fire locations: when protecting wiring in ceilings and floors of public gathering places such as hotels, restaurants, shopping malls, libraries, and entertainment venues, flame-retardant PE conduits with high fire performance ratings should be selected.

[0003] However, some existing PE conduits do not have a good protective structure, which not only reduces their service life, but also affects the stability and integrity of the cables inside.

[0004] Therefore, those skilled in the art have provided a flame-retardant PE conduit to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a flame-retardant PE conduit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flame-retardant PE conduit includes a PE conduit body; a plurality of inner fixing sleeves are movably connected to the outer side wall of the PE conduit body, a plurality of pressure-resistant balls are fixedly connected inside the inner fixing sleeves, and an anti-slip sleeve is movably connected to the outer side of the inner fixing sleeves.

[0008] As a further embodiment of this utility model, the outer front end of the anti-slip sleeve is movably connected with several front limiting sleeves, and the upper and lower ends of the rear side of the front limiting sleeve are fixedly connected with positioning rods, and the positioning rods have a through hole with a groove in the middle.

[0009] As a further embodiment of this utility model, the outer rear end of the anti-slip sleeve is movably connected with several rear limiting sleeves, and the front surface of the rear limiting sleeve has positioning grooves on the upper and lower sides.

[0010] As a further embodiment of this utility model, the internal thread of the positioning rod through hole is connected to a fixing bolt.

[0011] As a further embodiment of this utility model, the PE conduit body has a conduit groove in the middle of its interior, an inner protective layer is fixedly connected to the outer surface of the conduit groove, and a flame-retardant layer is fixedly connected to the outer surface of the inner protective layer.

[0012] As a further embodiment of this utility model, a corrosion-resistant layer is fixedly connected to the outer surface of the flame-retardant layer, and an outer protective layer is fixedly connected to the outer surface of the corrosion-resistant layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The pressure-resistant ball effectively disperses external pressure, preventing the PE conduit body from deforming or cracking due to external pressure. This ensures that the PE conduit body maintains good performance even in harsh environments or under external impact, protecting the internal cables from damage. The anti-slip sleeve not only increases the friction between the PE conduit body and the mounting surface or other objects, preventing the PE conduit body from sliding or shifting during use and ensuring the stability of its installation position, thus helping to maintain the neatness and safety of the entire wiring system, but also reduces wear caused by friction when the PE conduit body comes into contact with other objects, protecting the outer surface of the PE conduit body and extending its service life. At the same time, it also avoids problems such as static electricity generated by friction from affecting the cables.

[0015] 2. The flame-retardant layer is mainly made of polyethylene flame retardant, which is specifically used for flame retardant of PE materials. It can effectively improve the flame-retardant performance of the PE conduit body, making the PE conduit body less likely to burn when exposed to a fire source. The corrosion-resistant layer is mainly made of polytetrafluoroethylene, which has excellent corrosion resistance and can resist the erosion of various chemicals such as acids, alkalis, and salts. It can effectively protect the PE conduit body from corrosion in harsh environments. The outer protective layer is mainly made of polyurethane, which has good elasticity, flexibility, and impact resistance. It can effectively buffer external impact forces, protect the PE conduit body, and has strong chemical corrosion resistance and a certain degree of flame retardancy. Its flame-retardant effect can also be further improved by adding flame retardants. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a flame-retardant PE conduit.

[0017] Figure 2 This is a side view of a flame-retardant PE conduit.

[0018] Figure 3 This is an enlarged structural diagram of point A in a flame-retardant PE conduit.

[0019] Figure 4 This is an enlarged structural diagram of point B in a flame-retardant PE conduit.

[0020] In the diagram: 1-PE conduit body, 2-inner fixing sleeve, 3-pressure resistant ball, 4-anti-slip sleeve, 5-front limiting sleeve, 6-positioning rod, 7-positioning rod through hole, 8-rear limiting sleeve, 9-positioning groove, 10-fixing bolt, 11-conduit groove, 12-inner protective layer, 13-flame retardant layer, 14-corrosion resistant layer, 15-outer protective layer. Detailed Implementation

[0021] Please see Figures 1-4 In this embodiment of the utility model, a flame-retardant PE conduit includes a PE conduit body 1; a plurality of inner fixing sleeves 2 are movably connected to the outer side wall of the PE conduit body 1, a plurality of pressure-resistant balls 3 are fixedly connected inside the inner fixing sleeves 2, and an anti-slip sleeve 4 is movably connected to the outer side of the inner fixing sleeves 2; a plurality of front limiting sleeves 5 are movably connected to the front front end of the outer side of the anti-slip sleeve 4, and positioning rods 6 are fixedly connected to the upper and lower ends of the rear side of the front limiting sleeves 5, with a positioning rod through hole 7 slotted in the middle of the positioning rod 6; the outer side of the anti-slip sleeve 4... The rear end is connected to several rear limiting sleeves 8. The front surface of the rear limiting sleeve 8 has internal slots 9 on both sides. The internal thread of the positioning rod through hole 7 is connected to a fixing bolt 10. The PE conduit body 1 has a conduit groove 11 in the middle. The outer surface of the conduit groove 11 is fixedly connected to an inner protective layer 12. The outer surface of the inner protective layer 12 is fixedly connected to a flame retardant layer 13. The outer surface of the flame retardant layer 13 is fixedly connected to a corrosion resistant layer 14. The outer surface of the corrosion resistant layer 14 is fixedly connected to an outer protective layer 15.

[0022] The working principle of this utility model is as follows: In use, firstly, the inner fixing sleeve 2 is attached to the outer surface of the PE conduit body 1. Then, the anti-slip sleeve 4 is attached to the outer surface of the inner fixing sleeve 2. Next, the front limiting sleeve 5 and the rear limiting sleeve 8 are fitted onto the outer surface of the anti-slip sleeve 4, and the positioning rod 6 on the front limiting sleeve 5 is inserted into the positioning groove 9 on the rear limiting sleeve 8. Then, the fixing bolt 10 is turned into the positioning rod through hole 7 and the rear limiting sleeve 8. At this point, the front limiting sleeve 5 and the rear limiting sleeve 8 are used to fix the inner fixing sleeve 2 and the anti-slip sleeve 4. The pressure ball 3 effectively disperses external pressure, preventing the PE conduit body 1 from deforming or cracking due to external pressure. This ensures that the PE conduit body 1 maintains good performance even in harsh environments or under external impact, protecting the internal cables from damage. The anti-slip sleeve 4 not only increases the friction between the PE conduit body 1 and the mounting surface or other objects, preventing the PE conduit body 1 from sliding or shifting during use, but also ensures the stability of its installation position, which is beneficial for maintaining the neatness and security of the entire wiring system. The PE conduit body 1 is fully protected and its wear caused by friction when in contact with other objects is reduced, thus protecting the outer surface of the PE conduit body 1 and extending its service life. It also avoids the impact of static electricity caused by friction on the cable. The cable can then be threaded through the cable tray 11. The flame retardant layer 13 is mainly made of polyethylene flame retardant, which is specifically used for flame retardant of PE materials. It can effectively improve the flame retardant performance of the PE conduit body 1, making it less likely to burn when exposed to a fire source. The corrosion resistant layer 14 is mainly made of polytetrafluoroethylene, which has excellent corrosion resistance and can resist the erosion of various chemicals such as acids, alkalis, and salts. It can effectively protect the PE conduit body 1 from corrosion in harsh environments. The outer protective layer 15 is mainly made of polyurethane, which has good elasticity, flexibility, and impact resistance. It can effectively buffer external impacts, protect the PE conduit body 1, and has strong chemical corrosion resistance and a certain degree of flame retardancy. Its flame retardant effect can also be further improved by adding flame retardants.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flame-retardant PE conduit, comprising a PE conduit body (1), an inner fixing sleeve (2), and an anti-slip sleeve (4), characterized in that, The outer wall of the PE conduit body (1) is movably connected with several inner fixing sleeves (2), the inner fixing sleeves (2) are fixedly connected with several anti-pressure balls (3), and the outer side of the inner fixing sleeves (2) is movably connected with anti-slip sleeves (4).

2. The flame-retardant PE conduit according to claim 1, characterized in that, The outer front end of the anti-slip sleeve (4) is movably connected to several front limiting sleeves (5), and the upper and lower ends of the rear side of the front limiting sleeve (5) are fixedly connected to positioning rods (6), and the positioning rods (6) have a positioning rod through hole (7) with a groove in the middle.

3. The flame-retardant PE conduit according to claim 1, characterized in that, The outer rear end of the anti-slip sleeve (4) is movably connected to several rear limiting sleeves (8), and the front surface of the rear limiting sleeves (8) has positioning grooves (9) on the upper and lower sides.

4. The flame-retardant PE conduit according to claim 2, characterized in that, The internal thread of the positioning rod through hole (7) is connected to a fixing bolt (10).

5. The flame-retardant PE conduit according to claim 1, characterized in that, The PE conduit body (1) has a conduit groove (11) in the middle of its interior. An inner protective layer (12) is fixedly connected to the outer surface of the conduit groove (11), and a flame-retardant layer (13) is fixedly connected to the outer surface of the inner protective layer (12).

6. The flame-retardant PE conduit according to claim 5, characterized in that, A corrosion-resistant layer (14) is fixedly connected to the outer surface of the flame-retardant layer (13), and an outer protective layer (15) is fixedly connected to the outer surface of the corrosion-resistant layer (14).