Polyperfluorinated ethylene propylene insulated wire
By using positioning ribs and insulating sleeves made of polytetrafluoroethylene propylene (PTFE) in the cable, combined with a buffer layer design, the stability problem of the cable under high temperature combustion and bending was solved, achieving the effects of high temperature resistance, fire resistance, drag resistance, and signal stability.
Patent Information
- Application Number
- CN202422730100.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Traditional cables are prone to combustion at high temperatures, producing dense smoke and corrosive halogen acid gases. They are also prone to cracking and breakage when bent, affecting their service life and signal transmission.
The positioning ribs and insulating sleeves are made of polytetrafluoroethylene propylene material, combined with a buffer layer design to ensure stable positioning of the wire core, provide deformation space and buffer protection.
It improves the cable's high temperature resistance, fire resistance, and drag resistance, avoids cracking and tangling, and enhances the stability and service life of signal transmission.
Smart Images

Figure CN223501583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire technology, and in particular to a polytetrafluoroethylene propylene insulated wire. Background Technology
[0002] Currently, with the increasing use of cables, the quality requirements for cables are also constantly improving. Cables used in fields such as computers, communications, metallurgy, shipbuilding, aviation, chemical and petroleum require particularly high levels of resistance to high temperatures, water and oil, drag resistance, acid and alkali resistance, corrosion resistance, and interference resistance. However, traditional cables have problems such as not being able to withstand temperatures above 60°C, and producing large amounts of dense smoke and corrosive halogen gases when burned, hindering rescue efforts and endangering lives. Furthermore, ordinary cables tend to crack when laid and bent, affecting normal signal transmission and shortening the overall lifespan of the cable.
[0003] For example, a polytetrafluoroethylene (PTFE) cable with publication number CN204480755U includes a main conductor, a control conductor, a copper tape layer, an insulation layer, an armor layer, and a PTFE protective sheath. The copper tape layer has a filler in its center. Both the main conductor and the control conductor are arranged in two groups, radially and tightly around the filler. The insulation layer contains a grounding conductor. A metal layer is provided between the armor layer and the PTFE protective sheath. This type of cable has good conductivity, high temperature resistance, low smoke, halogen-free and environmentally friendly properties, and is drag-resistant, making it particularly suitable for underground tunnels. It is waterproof and moisture-resistant, has high shielding performance, is vibration-resistant, and has a robust conductor. It also facilitates cable laying and maintenance.
[0004] The above-mentioned technical solution has the problem of cracking when bent in practical applications. In addition, the wire cores are also prone to tangling and breaking when bent, which affects the normal use of the cable.
[0005] Therefore, it is necessary to invent a polytetrafluoroethylene propylene insulated wire to solve the above problems. Summary of the Invention
[0006] The purpose of this invention is to provide a polytetrafluoroethylene propylene insulated wire to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a polytetrafluoroethylene propylene insulated wire, comprising multiple wire cores, positioning ribs between the multiple wire cores, an insulating sleeve on the outer side of the multiple wire cores, a protective outer layer on the outer side of the insulating sleeve, a cavity in the middle of the positioning ribs, multiple positioning grooves circumferentially formed on the outer sidewall of the positioning ribs, each positioning groove being arc-shaped and corresponding to a multiple wire core, multiple grooves circumferentially formed on the inner sidewall of the insulating sleeve, each groove being arc-shaped and corresponding to a multiple positioning groove, multiple deformation grooves circumferentially formed on the outer sidewall of the positioning ribs, each deformation groove being "<" shaped, multiple planes and rounded corners on the outer sidewall of the insulating sleeve, the planes and rounded corners being staggered, and a buffer layer between the protective outer layer and the insulating sleeve.
[0008] Preferably, the wire core is made of copper wire, and the plurality of wire cores are arranged in a ring.
[0009] Preferably, both the positioning rib and the insulating sleeve are made of polytetrafluoroethylene propylene tubing.
[0010] Preferably, the protective outer layer is made of nylon tape.
[0011] Preferably, the buffer layer is a PVC layer.
[0012] Preferably, the inner side of the buffer layer is configured as a flat structure corresponding to a plane, and the outer side of the buffer layer is configured as an arc-shaped structure corresponding to a rounded corner.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model sets up a wire core with a positioning rib on the inner side and an insulating sleeve on the outer side. The positioning rib and the insulating sleeve work together to position multiple wire cores to prevent them from getting tangled during wire laying. Furthermore, both the positioning rib and the insulating sleeve are made of polytetrafluoroethylene propylene tubing. Polytetrafluoroethylene propylene can use its high temperature resistance and wear resistance to provide positioning protection for the wire cores, thereby ensuring the stability of the wire during use.
[0015] 2. This utility model provides multiple deformation grooves on the outer side of the positioning rib. The deformation grooves allow the positioning rib to have a certain deformation space when it bends with the wire, thus preventing the positioning rib from breaking after bending. By setting a buffer layer between the insulating sleeve and the protective outer layer, the buffer layer can not only improve the connection stability between the insulating sleeve and the protective outer layer, but also absorb energy and buffer the wire when it is subjected to external pressure and impact, thereby protecting the wire core. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the positioning rib and insulating sleeve structure of this utility model.
[0019] In the diagram: 1. Core wire; 2. Positioning rib; 3. Insulating sleeve; 4. Protective outer layer; 5. Cavity; 6. Positioning groove; 7. Groove; 8. Deformation groove; 9. Plane; 10. Rounded corner; 11. Buffer layer. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] This utility model provides, for example Figure 1-3 The polytetrafluoroethylene propylene insulated wire shown includes a conductor 1, and multiple conductors 1 are provided. The conductors 1 are made of copper wire, and the multiple conductors 1 are arranged in a ring.
[0022] Specifically, positioning ribs 2 are provided between multiple wire cores 1, and insulating sleeves 3 are provided on the outside of multiple wire cores 1. Both positioning ribs 2 and insulating sleeves 3 are made of polytetrafluoroethylene propylene tubing. Polytetrafluoroethylene propylene has the advantages of high temperature resistance and insulation, which can effectively protect the wire cores 1.
[0023] More specifically, the outer side of the insulating sleeve 3 is provided with a protective outer layer 4, which is made of nylon tape. The nylon tape has wear-resistant properties to improve the friction resistance of the wire during use.
[0024] Furthermore, a cavity 5 is provided in the middle of the positioning rib 2. The cavity 5 allows the positioning rib 2 to deform to a certain extent when it is squeezed, so as to facilitate the laying of wires. Multiple positioning grooves 6 are provided around the outer wall of the positioning rib 2. The multiple positioning grooves 6 are all arc-shaped and correspond to multiple wire cores 1 respectively. Multiple grooves 7 are provided around the inner wall of the insulating sleeve 3. The multiple grooves 7 are all arc-shaped and correspond to multiple positioning grooves 6 respectively. Multiple deformation grooves 8 are provided around the outer wall of the positioning rib 2. The multiple deformation grooves 8 are all "<" shaped. Multiple planes 9 and rounded corners 10 are provided on the outer wall of the insulating sleeve 3. The multiple planes 9 and rounded corners 10 are staggered. The planes 9 can effectively improve the positional stability between the insulating sleeve 3 and the protective outer layer 4, so as to avoid relative sliding between the insulating sleeve 3 and the protective outer layer 4.
[0025] Furthermore, a buffer layer 11 is provided between the protective outer layer 4 and the insulating sleeve 3. The buffer layer 11 is made of PVC, and the impact resistance of PVC can effectively absorb and offset the external impact force, thereby protecting the wire core 1. The inner side of the buffer layer 11 is set as a flat structure corresponding to the plane 9, and the outer side of the buffer layer 11 is set as an arc-shaped structure corresponding to the rounded corner 10. The arc-shaped structure design makes the protective outer layer 4 form a cylindrical structure after winding, which facilitates the laying of the wire.
[0026] Working principle of this utility model:
[0027] This invention features a wire core 1 with a positioning rib 2 on its inner side and an insulating sleeve 3 on its outer side. The positioning rib 2 and the insulating sleeve 3 work together to position multiple wire cores 1, preventing them from tangling during wire laying. Both the positioning rib 2 and the insulating sleeve 3 are made of polytetrafluoroethylene (PTFE), which provides positioning protection for the wire cores 1 due to its high temperature resistance and wear resistance, ensuring the stability of the wire during use. Multiple deformation grooves 8 are provided on the outer side of the positioning rib 2, allowing it to deform when bending with the wire, thus preventing breakage after bending. A buffer layer 11 is provided between the insulating sleeve 3 and the protective outer layer 4. This buffer layer 11 not only improves the connection stability between the insulating sleeve 3 and the protective outer layer 4 but also absorbs energy and buffers the wire when subjected to external pressure or impact, thus protecting the wire cores 1.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A polytetrafluoroethylene propylene insulated wire, comprising a conductor (1), characterized in that: Multiple cores (1) are provided, and positioning ribs (2) are provided between the multiple cores (1). An insulating sleeve (3) is provided on the outside of the multiple cores (1), and a protective outer layer (4) is provided on the outside of the insulating sleeve (3). A cavity (5) is provided in the middle of the positioning rib (2). Multiple positioning grooves (6) are provided around the outer wall of the positioning rib (2). The multiple positioning grooves (6) are all set as arc-shaped structures, and the multiple positioning grooves (6) correspond to the multiple cores (1) respectively. The inner wall of the insulating sleeve (3) is circumferential. The outer wall of the positioning rib (2) is provided with multiple grooves (7), each of which is set as an arc structure, and each of the multiple grooves (7) corresponds to multiple positioning grooves (6). The outer wall of the positioning rib (2) is provided with multiple deformation grooves (8), and each of the multiple deformation grooves (8) is set as a "<" shaped structure. The outer wall of the insulating sleeve (3) is provided with multiple planes (9) and rounded corners (10), and the multiple planes (9) and rounded corners (10) are staggered. A buffer layer (11) is provided between the protective outer layer (4) and the insulating sleeve (3).
2. The polytetrafluoroethylene propylene insulated wire according to claim 1, characterized in that: The wire core (1) is made of copper wire, and multiple wire cores (1) are arranged in a ring.
3. The polytetrafluoroethylene propylene insulated wire according to claim 2, characterized in that: Both the positioning rib (2) and the insulating sleeve (3) are made of polytetrafluoroethylene propylene pipe.
4. The polytetrafluoroethylene propylene insulated wire according to claim 3, characterized in that: The protective outer layer (4) is made of nylon tape.
5. The polytetrafluoroethylene propylene insulated wire according to claim 4, characterized in that: The buffer layer (11) is set as a PVC layer.
6. The polytetrafluoroethylene propylene insulated wire according to claim 5, characterized in that: The inner side of the buffer layer (11) is set as a flat structure corresponding to the plane (9), and the outer side of the buffer layer (11) is set as an arc-shaped structure corresponding to the rounded corner (10).
Citation Information
Patent Citations
Fluorinated ethylene propylene cable
CN204480755U