Dust-free high-flexibility cable sheath

Abstract

The utility model discloses a dust-free high-flexibility cable sheath, which belongs to the technical field of cables, and comprises a buffer layer, the inner wall of the buffer layer is connected with a filling layer in a bonding manner, the filling layer is made of polyester fiber materials, and the inner wall of the buffer layer is connected with an isolation cover in a bonding manner; the inner wall of the isolation cover is fixedly connected with a cable, and the isolation cover is made of a polyethylene material. The surface of the buffer layer is connected with a reinforcing layer in a bonding manner, and the buffer layer is made of a polyurethane foam material; a fireproof layer is connected to the surface of the reinforcing layer in an adhesive mode, and the reinforcing layer is composed of a high-strength aramid fiber woven mesh. A shielding layer is connected to the surface of the fireproof layer in an adhesive mode, and the fireproof layer is made of mica tape materials. The surface of the shielding layer is bonded with a moisture-proof layer. According to the dust-free high-flexibility cable sheath, the dust-proof wear-resistant layer made of polytetrafluoroethylene is arranged, so that the influence of surface dust on a cable can be effectively avoided, the working environment of the cable can be effectively maintained, and data transmission is ensured to be error-free.

Description

A dust-free, highly flexible cable sheath Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a dust-free, highly flexible cable sheath. Background Technology

[0002] A cable is an electrical or signal transmission device, typically a rope-like product composed of several or groups of conductors (each group containing at least two conductors) twisted together. Each group of conductors is insulated from each other and is often twisted around a central core, with the entire cable covered by a highly insulating outer layer. Cables are characterized by internal conductivity and external insulation, and are widely used in various fields. However, the heat generated during power transmission is difficult to dissipate externally, which over time causes the outer insulation layer of the core conductors to age and lose its effectiveness. This severely affects the long-distance power transmission performance of power cables. Furthermore, as the outermost sheath layer, its flame-retardant properties are not effectively improved, making it difficult to prevent the spread of fire in the event of a fire.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number CN202411502667.1, application date 2024-10-25) provides a high-performance fireproof cable with composite mica copper sheath for high-speed rail, comprising a plurality of insulated cores, inorganic wrapping tape, copper sheath, and sheath layer arranged sequentially from the inside out. The insulated cores include copper conductors and a mica tape insulation layer wrapped around the surface of the copper conductors. Mineral material is filled between the mica tape insulation layer and the inorganic wrapping tape. The sheath layer is prepared by extruding the sheath layer material around the copper sheath using an extrusion device, giving the cable sheath layer material excellent heat and oxygen aging resistance, flame retardancy, and heat resistance.

[0004] The surface of the cable sheath is prone to static electricity, which attracts a large amount of dust. The accumulation of dust not only affects the appearance of the cable, but more seriously, it may pollute the surrounding high-precision equipment or sensitive environment. At the same time, it is prone to cracking and wear during long-term bending, which can lead to damage to the internal cables, affect the electrical performance and service life of the cable, increase maintenance costs and equipment downtime risks. The above-mentioned devices cannot effectively reduce the surface dust residue during use, which can lead to current leakage and affect the normal operation of the cable. In addition, dust accumulation may change the electromagnetic environment around the cable and interfere with signal transmission. Summary of the Invention

[0005] The purpose of this invention is to provide a dust-free, highly flexible cable sheath to solve the problems mentioned in the background art, such as the inability to effectively reduce surface dust residue, leading to current leakage and affecting the normal operation of the cable, and the possibility that dust accumulation may change the electromagnetic environment around the cable and interfere with signal transmission.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust-free, highly flexible cable sheath, comprising a buffer layer, wherein a filling layer is bonded to the inner wall of the buffer layer, and the filling layer is composed of polyester fiber material, and an isolation cover is bonded to the inner wall of the buffer layer; a cable is fixedly connected to the inner wall of the isolation cover, and the isolation cover is composed of polyethylene material.

[0007] The above structural design, through the installation of isolation covers and buffer layers, greatly improves the flexibility and mechanical properties of the cable, effectively absorbs the impact force applied to the cable from the outside, avoids the impact force directly acting on the internal cable and causing damage, and makes the cable structure more compact. When the cable is bent or subjected to external force, the stress on each part is more even, reducing damage caused by local stress concentration.

[0008] Preferably, a reinforcing layer is bonded to the surface of the buffer layer, and the buffer layer is composed of polyurethane foam.

[0009] The above structural design, by setting a buffer layer of polyurethane foam, can effectively disperse and absorb the impact force, preventing the impact force from being directly transmitted to the internal cable, thereby protecting the insulation layer and conductor of the internal cable from damage and ensuring the stable electrical performance of the cable.

[0010] Preferably, a fireproof layer is bonded to the surface of the reinforcing layer, and the reinforcing layer is composed of a high-strength aramid fiber woven mesh.

[0011] The above structural design, by setting a reinforcing layer of high-strength aramid fiber braided mesh, can give the cable excellent tensile strength, effectively bear these tensile forces, prevent the cable from breaking due to tension, and ensure stable transmission of power or signals.

[0012] Preferably, a shielding layer is bonded to the surface of the fireproof layer, and the fireproof layer is composed of mica tape.

[0013] The above structural design, by setting a fireproof layer of mica tape, can effectively reduce the risk of structural deformation or damage caused by external forces. At the same time, the mica tape can help disperse stress and avoid damage to the internal structure of the cable due to local stress concentration, thus ensuring the structural integrity of the cable during normal use and installation.

[0014] Preferably, a moisture-proof layer is bonded to the surface of the shielding layer, and the shielding layer is composed of copper wire woven mesh.

[0015] The above structural design, by setting a moisture-proof layer of copper wire braided mesh, effectively resists the intrusion of external moisture. Furthermore, the copper wire braided mesh can prevent moisture from directly contacting the internal components of the cable, reducing the decrease in insulation performance and corrosion of metal conductors caused by moisture penetration, thereby protecting the inside of the cable from the effects of moisture.

[0016] Preferably, a dustproof and wear-resistant layer is bonded to the surface of the moisture-proof layer, and the moisture-proof layer is composed of polypropylene.

[0017] Preferably, the dustproof and wear-resistant layer is made of polytetrafluoroethylene.

[0018] The above structural design, by setting a dustproof and wear-resistant layer of polytetrafluoroethylene, can keep the cable surface clean in dusty environments, maintain the cable's good appearance, and avoid the potential impact of dust accumulation on electrical performance. It is suitable for precision environments with high dust-free requirements.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This dust-free, highly flexible cable sheath adopts a novel structural design, and by setting a dustproof and wear-resistant layer, it reduces the impact of dust accumulation on cable performance, meeting the usage requirements of places with strict requirements for dust-free environments, such as electronic chip manufacturing workshops and precision instrument production plants. Its specific details are as follows:

[0020] (1) The dust-free, highly flexible cable sheath, by setting a dustproof and wear-resistant layer of polytetrafluoroethylene, can effectively avoid the influence of surface dust on the cable, and at the same time effectively maintain the working environment of the cable and ensure error-free data transmission.

[0021] Furthermore, the fire-resistant layer made of mica tape can effectively reduce the risk of structural deformation or damage caused by external forces.

[0022] (2) The dust-free, highly flexible cable sheath, by setting a moisture-proof layer of copper wire braided mesh, can effectively resist the intrusion of external moisture, reduce the decrease in insulation performance and corrosion of metal conductors caused by moisture penetration, thereby protecting the inside of the cable from the effects of moisture.

[0023] Furthermore, the high-strength aramid fiber braided mesh reinforcement layer gives the cable excellent tensile strength, effectively bearing tensile force and preventing the cable from breaking due to stretching.

[0024] (3) The dust-free, highly flexible cable sheath, by setting a buffer layer of polyurethane foam, greatly improves the flexibility and mechanical properties of the cable, and effectively absorbs the impact force applied to the cable from the outside, avoiding the impact force from directly acting on the internal cable and causing damage. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the connection structure between the buffer layer and the filling layer of this utility model;

[0026] Figure 2 is a schematic diagram of the connection structure between the buffer layer and the isolation cover of this utility model;

[0027] Figure 3 is a schematic diagram of the connection structure between the isolation cover and the cable of this utility model;

[0028] Figure 4 is a schematic diagram of the connection structure between the buffer layer and the filling layer of this utility model;

[0029] Figure 5 is a schematic diagram of the connection structure between the buffer layer and the reinforcement layer of this utility model;

[0030] Figure 6 is a schematic diagram of the connection structure between the shielding layer and the fireproof layer of this utility model;

[0031] Figure 7 is a schematic diagram of the dustproof and wear-resistant layer and the moisture-proof layer of this utility model.

[0032] In the diagram: 1. Dustproof and wear-resistant layer; 2. Isolation cover; 3. Cable; 4. Buffer layer; 5. Reinforcing layer; 6. Fireproof layer; 7. Shielding layer; 8. Moisture-proof layer; 9. Filling layer. Detailed Implementation

[0033] 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.

[0034] Example 1: The protection of cable 3 is improved by setting buffer layer 4, isolation cover 2 and isolation cover 2, as shown in Figures 1-3: including buffer layer 4, the inner wall of buffer layer 4 is bonded to a filling layer 9, and the filling layer 9 is made of polyester fiber material, and the inner wall of buffer layer 4 is bonded to an isolation cover 2, the inner wall of isolation cover 2 is fixedly connected to cable 3, and isolation cover 2 is made of polyethylene material.

[0035] Cable 3 is installed inside the isolation cover 2 and installed inside the sheath using external tools. At the same time, according to the reserved line, cable 3 is laid in the reserved position. The isolation cover 2 and buffer layer 4 greatly improve the flexibility and mechanical properties of the cable, and effectively absorb the impact force applied to the cable from the outside, avoiding the impact force from directly acting on the internal cable 3 and causing damage. It also makes the cable structure more compact, and when the cable is bent or subjected to external force, the stress on each part is more even, reducing damage caused by local stress concentration.

[0036] Example 2: In this example, unlike Example 1, the service life of cable 3 is extended by setting fireproof layer 6, reinforcement layer 5, and reinforcement layer 5, as shown in Figures 4-5: the reinforcement layer 5 is bonded to the surface of buffer layer 4, and buffer layer 4 is made of polyurethane foam; the fireproof layer 6 is bonded to the surface of reinforcement layer 5, and reinforcement layer 5 is made of high-strength aramid fiber woven mesh; the shielding layer 7 is bonded to the surface of fireproof layer 6, and fireproof layer 6 is made of mica tape.

[0037] By setting a buffer layer 4 made of polyurethane foam, the impact force can be effectively dispersed and absorbed, preventing the impact force from being directly transmitted to the internal cable 3, thereby protecting the insulation layer and conductor of the internal cable 3 from damage and ensuring the stable electrical performance of the cable. The reinforcing layer 5 made of high-strength aramid fiber braided mesh can give the cable excellent tensile strength, effectively bearing these tensile forces and preventing the cable from breaking due to tension, ensuring the stable transmission of power or signals. The fireproof layer 6 made of mica tape can effectively reduce the risk of structural deformation or damage caused by external forces. At the same time, the mica tape can help disperse stress and avoid damage to the internal structure of the cable due to local stress concentration, ensuring the structural integrity of the cable during normal use and installation.

[0038] In Example 3, unlike Example 2, the presence of a shielding layer 7, a moisture-proof layer 8, and a dust-proof and wear-resistant layer 1 reduces dust residue on the surface of the cable 3, as shown in Figures 6 and 7. The surface of the shielding layer 7 is bonded to the moisture-proof layer 8, which is made of copper wire braided mesh. The surface of the moisture-proof layer 8 is bonded to the dust-proof and wear-resistant layer 1, which is made of polypropylene. The dust-proof and wear-resistant layer 1 is made of polytetrafluoroethylene.

[0039] By setting a moisture-proof layer 8 made of copper wire braided mesh, the intrusion of external moisture is effectively blocked. The moisture-proof layer 8 of copper wire braided mesh can prevent moisture from directly contacting the internal components of the cable, reducing the decrease in insulation performance and corrosion of metal conductors caused by moisture penetration, thereby protecting the inside of the cable from the effects of moisture. The dustproof and wear-resistant layer 1 made of polytetrafluoroethylene can keep the cable surface clean in dusty environments, maintain the cable's good appearance, and avoid the potential impact of dust accumulation on electrical performance. It is suitable for precision environments with high dust-free requirements.

[0040] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-free, highly flexible cable sheath, comprising a buffer layer (4), wherein a filling layer (9) is bonded to the inner wall of the buffer layer (4), and the filling layer (9) is composed of polyester fiber material, and an isolation cover (2) is bonded to the inner wall of the buffer layer (4); characterized in that: The inner wall of the isolation cover (2) is fixedly connected with a cable (3), and the isolation cover (2) is made of polyethylene material.

2. The dust-free, highly flexible cable sheath according to claim 1, characterized in that: The buffer layer (4) has a reinforcing layer (5) bonded to its surface, and the buffer layer (4) is made of polyurethane foam.

3. The dust-free, highly flexible cable sheath according to claim 2, characterized in that: The surface of the reinforcing layer (5) is bonded with a fireproof layer (6), and the reinforcing layer (5) is composed of a high-strength aramid fiber woven mesh.

4. The dust-free, highly flexible cable sheath according to claim 3, characterized in that: The fireproof layer (6) has a shielding layer (7) bonded to its surface, and the fireproof layer (6) is composed of mica tape material.

5. The dust-free, highly flexible cable sheath according to claim 4, characterized in that: The shielding layer (7) has a moisture-proof layer (8) bonded to its surface, and the shielding layer (7) is made of copper wire braided mesh.

6. The dust-free, highly flexible cable sheath according to claim 5, characterized in that: The moisture-proof layer (8) has a dustproof and wear-resistant layer (1) bonded to its surface, and the moisture-proof layer (8) is made of polypropylene.

7. The dust-free, highly flexible cable sheath according to claim 6, characterized in that: The dustproof and wear-resistant layer (1) is made of polytetrafluoroethylene.

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