Novel waterproof flexible cable
By incorporating a multi-layered structure including an insulation layer, a waterproof layer, a support layer, and a resilient rubber tube within the cable, the problem of poor waterproof performance in traditional cables is solved, resulting in improved high-efficiency waterproofing, insulation, and abrasion resistance.
Patent Information
- Application Number
- CN202520639278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Traditional cables have poor waterproof performance, posing safety hazards and failing to meet customer needs.
The cable employs a combined structure consisting of an insulation layer, a first waterproof layer, a support layer, and a resilient rubber tube, along with a multi-layer design including a functional layer and a corrosion-resistant layer, to improve the cable's waterproof, shielding, flame-retardant, and corrosion-resistant properties.
It significantly improves the cable's waterproof performance, enhances its insulation, shielding, and abrasion resistance, avoids safety hazards, and meets customer usage needs.
Smart Images

Figure CN223977723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a novel waterproof flexible cable. Background Technology
[0002] Cables come in a wide variety of types and specifications. They can be classified into several types according to their uses and methods of use. They are usually composed of single or multiple strands of conductors and insulation layers. They are mainly used to connect circuits and electrical appliances, and have the characteristics of internal current transmission and external insulation.
[0003] Traditional cables are mostly manufactured with protective sleeves made of a single rubber material. This type of insulating protective sleeve has a single function, resulting in poor waterproof performance of the cable and potential safety hazards, thus failing to meet customer needs.
[0004] Therefore, those skilled in the art have provided a novel waterproof flexible cable to solve the problems mentioned in the background art. Utility Model Content
[0005] To improve the problem of poor waterproof performance, this utility model provides a new type of waterproof flexible cable.
[0006] This utility model provides a novel waterproof flexible cable, which adopts the following technical solution:
[0007] A novel waterproof flexible cable includes a cable core, an insulation layer fixedly connected to the outer surface of the cable core, a first waterproof layer fixedly connected to the outer surface of the insulation layer, a functional layer disposed on the outer surface of the first waterproof layer, a support layer filling the space between the first waterproof layer and the functional layer, a resilient rubber tube uniformly disposed on the inner surface of the support layer, and a corrosion-resistant layer fixedly connected to the outer surface of the functional layer.
[0008] By adopting the above technical solutions, the insulation layer can improve the insulation performance of the cable. The first waterproof layer, the support layer, and the rebound rubber tube can improve the waterproof performance of the cable. At the same time, the support layer and the rebound rubber tube can support the internal structure of the cable and provide cushioning protection when the cable is squeezed. The functional layer can improve the shielding performance, flame retardant performance, and further improve the waterproof performance of the cable. The corrosion-resistant layer can improve the corrosion resistance and abrasion resistance of the cable.
[0009] Optionally, the functional layer includes a second waterproof layer, a shielding layer is fixedly connected to the outer surface of the second waterproof layer, and a flame-retardant layer is fixedly connected to the outer surface of the shielding layer.
[0010] By adopting the above technical solutions, the second waterproof layer can further improve the waterproof performance of the cable, the shielding layer can improve the shielding performance of the cable, and the flame-retardant layer can improve the flame-retardant performance of the cable.
[0011] Optionally, the inner surface of the second waterproof layer is fixedly connected to the connection with the support layer, and the outer surface of the flame-retardant layer is fixedly connected to the connection with the corrosion-resistant layer.
[0012] Optionally, the inner surface of the support layer is tightly fitted to the connection point of the rebound rubber tube, and the inner surface of the support layer is tightly fitted to the connection point of the first waterproof layer.
[0013] Optionally, the insulating layer is made of polytetrafluoroethylene, and the first waterproof layer is made of polyvinyl chloride.
[0014] By adopting the above technical solution, the insulation layer is made of polytetrafluoroethylene (PTFE). PTFE, also known as Teflon, is commonly called "the king of plastics." It is a high-molecular polymer polymerized from tetrafluoroethylene monomers. It has excellent chemical stability, corrosion resistance, sealing properties, high lubricity and non-stickiness, electrical insulation, and good anti-aging resistance. It is also resistant to high temperatures, with an operating temperature up to 250℃, and resistant to low temperatures, exhibiting good mechanical toughness at low temperatures. This improves the insulation performance of the cable. The first waterproof layer is made of polyvinyl chloride (PVC). PVC is a polymer formed by the polymerization of vinyl chloride monomer (VCM) under the action of initiators such as peroxides and azo compounds, or under the action of light and heat, according to the free radical polymerization mechanism. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC has excellent waterproof performance, thereby improving the waterproof performance of the cable.
[0015] Optionally, the support layer is made of filler adhesive, and the corrosion-resistant layer is made of polyetheretherketone.
[0016] By adopting the above technical solution, the support layer is made of filler adhesive, a common waterproof material that is usually filled in the gaps inside the cable. It has good high temperature resistance, aging resistance, and acid and alkali corrosion resistance. It can effectively prevent moisture and humidity from entering the cable, protect the cable from damage caused by humid environments, and ensure the stability and safety of the cable. At the same time, it can protect and support the internal structure of the cable, thereby further improving the waterproof performance of the cable. The corrosion-resistant layer is made of polyetheretherketone (PEEK). PEEK has high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, radiation resistance, and good electrical properties, which can effectively improve the corrosion resistance and wear resistance of the cable.
[0017] Optionally, the second waterproof layer is made of polytetrafluoroethylene film, and the shielding layer is made of aluminum foil shielding material.
[0018] By adopting the above technical solution, the second waterproof layer is made of polytetrafluoroethylene (PTFE) film. PTFE film has a significant effect on cable waterproofing. PTFE film has excellent waterproof, dustproof and breathable properties, which can further improve the waterproof performance of the cable. The shielding layer is made of aluminum foil shielding material. Aluminum foil shielding material has excellent conductivity and shielding properties and can effectively block electromagnetic interference. Therefore, it is often used for cable shielding. Aluminum foil is usually wrapped around the insulation layer of the cable, which can improve the shielding performance of the cable.
[0019] In summary, this utility model has the following beneficial effects:
[0020] 1. This utility model improves the insulation performance of the cable by setting an insulation layer, enhances its waterproof performance by setting a first waterproof layer, a support layer, and a rebound rubber tube, and provides internal structural support and cushioning protection when the cable is compressed. The functional layer improves the cable's shielding, flame-retardant properties, and further enhances its waterproof performance. The corrosion-resistant layer improves its corrosion resistance and abrasion resistance. These features effectively improve the cable's waterproof performance, meeting customer needs and preventing potential safety hazards.
[0021] 2. This utility model improves the cable's waterproof performance by setting a second waterproof layer, enhancing its shielding performance, and improving its flame-retardant performance by setting a flame-retardant layer. The insulation layer is made of polytetrafluoroethylene (PTFE), also known as Teflon, commonly called "the king of plastics." PTFE is a high-molecular polymer polymerized from tetrafluoroethylene monomers, possessing excellent chemical stability, corrosion resistance, sealing properties, high lubricity and non-stickiness, electrical insulation, and good anti-aging resistance. It is also heat-resistant, with an operating temperature up to 250℃, and cold-resistant, exhibiting good mechanical toughness at low temperatures, thus improving the cable's insulation performance. The first waterproof layer is made of polyvinyl chloride (PVC), a polymer formed by the polymerization of vinyl chloride monomer (VCM) under free radical polymerization mechanisms using initiators such as peroxides and azo compounds, or under the influence of light and heat. Vinyl chloride homopolymers and copolymers are collectively referred to as vinyl chloride resins. PVC has excellent waterproof performance, thus improving the cable's waterproof performance. The support layer is made of filler adhesive, a common waterproof material typically used to fill electrical... The internal gaps of the cable exhibit excellent resistance to high temperatures, aging, and acid and alkali corrosion. This effectively prevents moisture and humidity from entering the cable, protecting it from damage in humid environments and ensuring its stability and safety. Simultaneously, it provides protection and support for the internal structure, further enhancing the cable's waterproof performance. The corrosion-resistant layer is made of polyetheretherketone (PEEK), which possesses high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, abrasion resistance, fatigue resistance, radiation resistance, and good electrical properties, effectively improving the cable's corrosion and abrasion resistance. The second waterproof layer is made of polytetrafluoroethylene (PTFE) film. PTFE film has a significant effect on cable waterproofing, exhibiting excellent waterproof, dustproof, and breathable properties, further enhancing the cable's waterproof performance. The shielding layer is made of aluminum foil shielding material. Aluminum foil shielding material has excellent conductivity and shielding properties, effectively blocking electromagnetic interference, and is therefore commonly used for cable shielding. The aluminum foil is typically wrapped around the cable's insulation layer, thereby improving the cable's shielding performance. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;
[0024] Figure 3 This utility model Figure 2 Enlarged view of section A of the structure;
[0025] Figure 4 This is an exploded view of the functional layer structure of this utility model.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Cable core; 2. Insulation layer; 3. First waterproof layer; 4. Functional layer; 401. Second waterproof layer; 402. Shielding layer; 403. Flame retardant layer; 5. Support layer; 6. Resilient rubber tube; 7. Corrosion resistant layer. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0029] Example 1:
[0030] Please refer to Figure 1-4 A novel waterproof flexible cable includes a cable core 1, an insulation layer 2 fixedly connected to the outer surface of the cable core 1, a first waterproof layer 3 fixedly connected to the outer surface of the insulation layer 2, a functional layer 4 disposed on the outer surface of the first waterproof layer 3, a support layer 5 filled between the first waterproof layer 3 and the functional layer 4, a resilient rubber tube 6 uniformly disposed on the inner surface of the support layer 5, a corrosion-resistant layer 7 fixedly connected to the outer surface of the functional layer 4, the connection between the inner surface of the support layer 5 and the resilient rubber tube 6 being tightly fitted, and the connection between the inner surface of the support layer 5 and the first waterproof layer 3 being tightly fitted. The insulation layer 2 is made of polytetrafluoroethylene, the first waterproof layer 3 is made of polyvinyl chloride, the support layer 5 is made of filler adhesive, and the corrosion-resistant layer 7 is made of polyetheretherketone.
[0031] In this embodiment: By setting the insulation layer 2, the present invention can improve the insulation performance of the cable; by setting the first waterproof layer 3, the support layer 5, and the rebound rubber tube 6, the waterproof performance of the cable can be improved; at the same time, the support layer 5 and the rebound rubber tube 6 can support the internal structure of the cable and buffer and protect the cable when it is squeezed; by setting the corrosion-resistant layer 7, the corrosion resistance and wear resistance of the cable can be improved. By setting the above structure, the waterproof performance of the cable can be effectively improved, thereby meeting the customer's usage needs and avoiding potential safety hazards.
[0032] Example 2:
[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The functional layer 4 includes a second waterproof layer 401, a shielding layer 402 fixedly connected to the outer surface of the second waterproof layer 401, a flame retardant layer 403 fixedly connected to the outer surface of the shielding layer 402, a fixed connection between the inner surface of the second waterproof layer 401 and the support layer 5, and a fixed connection between the outer surface of the flame retardant layer 403 and the corrosion resistant layer 7. The material of the second waterproof layer 401 is a polytetrafluoroethylene film, and the material of the shielding layer 402 is an aluminum foil shielding material.
[0034] In this embodiment: by setting a second waterproof layer 401, the present invention can further improve the waterproof performance of the cable; by setting a shielding layer 402, the shielding performance of the cable can be improved; and by setting a flame-retardant layer 403, the flame-retardant performance of the cable can be improved.
[0035] The implementation principle of this utility model is as follows: In use, the insulation layer 2 can improve the insulation performance of the cable; the first waterproof layer 3, the support layer 5, and the rebound rubber tube 6 can improve the waterproof performance of the cable; at the same time, the support layer 5 and the rebound rubber tube 6 can support the internal structure of the cable and buffer and protect the cable when it is squeezed; the functional layer 4 can improve the shielding performance, flame retardant performance, and further improve the waterproof performance of the cable; and the corrosion-resistant layer 7 can improve the corrosion resistance and wear resistance of the cable. Through the combined use of the above structures, the waterproof performance of the cable can be effectively improved, thereby meeting the customer's usage needs and avoiding potential safety hazards.
[0036] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A new type of waterproof flexible cable comprising a core (1), characterized in that: The outer surface of the cable core (1) is fixedly connected with an insulation layer (2), the outer surface of the insulation layer (2) is fixedly connected with a first waterproof layer (3), the outer surface of the first waterproof layer (3) is provided with a functional layer (4), the first waterproof layer (3) and the functional layer (4) are filled with a supporting layer (5), the inner surface of the supporting layer (5) is uniformly provided with a rebound rubber tube (6), and the outer surface of the functional layer (4) is fixedly connected with a corrosion-resistant layer (7).
2. A new type of waterproof flexible cable according to claim 1, characterized by: The functional layer (4) comprises a second waterproof layer (401), the outer surface of the second waterproof layer (401) is fixedly connected with a shielding layer (402), and the outer surface of the shielding layer (402) is fixedly connected with a flame-retardant layer (403).
3. A new type of waterproof flexible cable according to claim 2, characterized in that: The connecting part of the inner surface of the second waterproof layer (401) and the supporting layer (5) is fixedly connected, and the connecting part of the outer surface of the flame-retardant layer (403) and the corrosion-resistant layer (7) is fixedly connected.
4. A new type of waterproof flexible cable according to claim 1, characterized in that: The connecting part of the inner surface of the supporting layer (5) and the rebound rubber tube (6) is tightly attached, and the connecting part of the inner surface of the supporting layer (5) and the first waterproof layer (3) is tightly attached.
5. A novel waterproof flexible cable as claimed in claim 1, wherein: The material of the insulation layer (2) is polytetrafluoroethylene, and the material of the first waterproof layer (3) is polyvinyl chloride.
6. A new type of waterproof flexible cable according to claim 1, characterized by: The material of the supporting layer (5) is filling glue, and the material of the corrosion-resistant layer (7) is polyether ether ketone.
7. A new type of waterproof flexible cable according to claim 2, characterized by: The material of the second waterproof layer (401) is a polytetrafluoroethylene film, and the material of the shielding layer (402) is an aluminum foil shielding material.