Rat-proof and waterproof computer cable

Abstract

The utility model discloses a rat-proof and waterproof computer cable, which comprises a cable core, a waterproof layer, an isolating layer, an inner sheath and an outer sheath which are sequentially arranged from inside to outside, wherein the waterproof layer is a water-blocking tape which is wrapped on the cable core; the isolating layer is formed by weaving a plurality of bimetal wires on the waterproof layer; the inner sheath is made of high-density polyethylene and is extruded on the isolating layer; the outer sheath is made of rat-proof plastic and is extruded on the inner sheath. The rat-proof and waterproof computer cable provided by the utility model can enduringly and stably prevent rats, and is good in waterproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a mouse-proof and waterproof computer cable. Background Art

[0002] Computer cables are cables for electrical equipment. They have excellent shielding and anti-interference properties and are mainly used for data transmission and communication. With the continuous development of science and technology, they are increasingly used in computer networks, automation equipment, sensor equipment and other fields. However, the environment in which computer cables are installed is often small and humid. Moisture and water can easily corrode the cables, causing the insulation and electrical properties of the cables to deteriorate, or even become unusable. In addition, such places are prone to attracting rats, which may gnaw on the cables and cause damage to the cables. Therefore, computer cables need to be waterproof and rat-proof.

[0003] However, the computer cables with waterproof and rat-proof functions currently used in the industry only use chemicals to add to the outer sheath to prevent rats, and the inner cable core is waterproof. However, during the use of computer cables in this way, the chemicals will continue to evaporate as the cables are put into use, and the rat-proof effect is not long-lasting and unstable. When the chemicals are completely evaporated, mice can still gnaw the cables, thereby destroying the waterproof layer of the cables, making the cables unusable. Utility Model Content

[0004] The present application provides a rat-proof and waterproof computer cable, which can be rat-proof in a long-lasting and stable manner and has a good waterproof effect.

[0005] The present application provides a rodent-proof and waterproof computer cable, comprising a cable core, a waterproof layer, an isolation layer, an inner sheath and an outer sheath arranged in sequence from the inside to the outside; wherein the waterproof layer is a water-blocking tape wrapped around the cable core; the isolation layer is a plurality of bimetallic wires braided on the waterproof layer; the inner sheath is a high-density polyethylene extruded on the isolation layer; and the outer sheath is a rodent-proof plastic extruded on the inner sheath.

[0006] Furthermore, the bimetallic wire is a copper clad steel wire.

[0007] Furthermore, the thickness of the copper layer in the copper-clad steel wire is not less than 0.002 mm.

[0008] Furthermore, the thickness of the water blocking tape is not less than 0.2 mm.

[0009] Furthermore, the cable core includes a plurality of core assembly units, each of the core assembly units includes an insulating core layer and a shielding layer arranged sequentially from the inside to the outside, the insulating core layer is formed by twisting two insulating cores, and the insulating core includes a conductor and an insulating layer arranged sequentially from the inside to the outside; wherein the gaps between each of the core assembly units and between the core assembly units and the waterproof layer are filled with filling ropes.

[0010] Furthermore, the insulating layer is one of polyethylene, cross-linked polyethylene and polyvinyl chloride.

[0011] Furthermore, the shielding layer is an aluminum-plastic composite tape wrapped around the insulating core layer.

[0012] Furthermore, the thickness of the aluminum foil in the aluminum-plastic composite tape is not less than 0.008 mm.

[0013] Compared with the prior art, the rat-proof and waterproof computer cable provided by the utility model is rat-proof by providing a rat-proof plastic outer sheath. At the same time, due to the tight characteristics of the plastic structure, it can effectively prevent moisture in the air from penetrating into the cable. The rat-proof and waterproof computer cable provided by the utility model is also provided with a water-blocking tape waterproof layer, a copper-clad steel wire woven isolation layer and a high-density polyethylene inner sheath in the outer sheath. On the one hand, the high-density polyethylene has a tight structure, which can further prevent moisture from penetrating into the interior of the cable, and has good insulation and wear resistance. On the other hand, the copper-clad steel wire not only retains the transmission characteristics of metallic copper, but also increases the tensile and mechanical damage resistance of the steel wire material. While further effectively preventing rats, it can ensure the smooth transmission of power signals and effectively shield the interference of external signals. In addition, the water-blocking tape waterproof layer will expand when encountering moisture or moisture, fill the gaps in the cable core, block moisture or moisture from entering the interior of the cable core, and prevent the insulation performance of the cable core from decreasing.

[0014] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 is a schematic cross-sectional view of the rodent-proof and waterproof computer cable of the present application;

[0017] In the figure:

[0018] 11- conductor, 12- insulation layer, 13- shielding layer;

[0019] 20-filling rope;

[0020] 30- waterproof layer;

[0021] 40- isolation layer;

[0022] 50-inner sheath;

[0023] 60-Outer sheath. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0025] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this specification should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate the existence of one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect.

[0026] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms of "a", "an", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] Next, the embodiments of this specification are described in detail.

[0028] Please refer to Figure 1 As shown, Figure 1 It is a cross-sectional schematic diagram of the rodent-proof and waterproof computer cable of the present application.

[0029] As shown in the figure, in order to better prevent rats and water, the present application provides a rat-proof and waterproof computer cable, which mainly includes a cable core, a waterproof layer 30, an isolation layer 40, an inner sheath 50 and an outer sheath 60 arranged in sequence from the inside to the outside; wherein the waterproof layer 30 is a water-blocking tape wrapped around the cable core; the isolation layer 40 is a plurality of bimetallic wires woven on the waterproof layer 30; the inner sheath 50 is high-density polyethylene extruded on the isolation layer 40; and the outer sheath 60 is rat-proof plastic extruded on the inner sheath 50.

[0030] In this embodiment, the rat-proof plastic refers to a plastic material in which a rodent repellent is added to achieve the purpose of chemical rodent prevention. The plastic may be polyvinyl chloride, polyolefin, etc. The plastic has a compact structure, low permeability to water vapor and air, and low water absorption, and can prevent moisture and water in the air from penetrating into the cable. The present application uses the rat-proof plastic as the outer sheath 60 of the cable, which plays a preliminary role in rodent prevention and waterproofing.

[0031] In this embodiment, high-density polyethylene has the characteristics of corrosion resistance, wear resistance, good insulation, non-toxicity, and odorlessness. In addition, high-density polyethylene has a compact structure, low permeability to water vapor and air, low water absorption, and is not easily penetrated by moisture in the external air. The present application uses high-density polyethylene as the material of the inner sheath 50, which further better protects the cable from water and also ensures good insulation performance. At the same time, it is also safer and more environmentally friendly.

[0032] In this embodiment, the bimetallic wire is resistant to tension and mechanical damage, and has the characteristics of conducting electrical signals. The bimetallic wire is woven on the waterproof layer 30 as the isolation layer 40, which ensures the transmission performance of the cable and can also be physically anti-rat and ant. When the chemical anti-rat effect of the outer sheath 60 decreases or disappears, the isolation layer 40 can play a role in mechanical and physical anti-rat, further preventing rats from gnawing and damaging the inside of the cable.

[0033] In this embodiment, the water-blocking tape refers to a water-blocking tape for electric cables and optical cables. The water-blocking tape is made of polyester non-woven fabric, conductive carbon black and high molecular water-absorbing resin as the main materials. The water-blocking tape has the characteristics of high expansion pressure, fast expansion speed, good gel stability and good thermal stability, etc., which prevents water and moisture from spreading longitudinally, thereby playing a water-blocking role, ensuring the power transmission performance and extending the life of the cable. The rat-proof and waterproof computer cable of the present application uses a water-blocking tape wrapped around the cable core as a waterproof layer 30. The water-blocking tape will expand when encountering moisture or water, fill the gap of the cable core, and block moisture or water from entering the cable core, further effectively playing the role of sealing, waterproofing, and moisture-proofing, preventing the cable core from being damp and causing the insulation performance to decrease, ensuring the transmission performance of the cable, and also extending the life of the cable.

[0034] In one embodiment, the bimetallic wire is a copper-clad steel wire. Copper-clad steel refers to a composite wire in which copper is wrapped around steel wire, that is, a copper layer is wrapped around the outer surface of the steel wire. It uses the skin effect of low-voltage and high-frequency signals to move along the surface in the high-frequency region. When the thickness of the copper layer reaches a certain range, the signal of a certain frequency band can be ensured to be transmitted. In the isolation layer 40 formed by weaving copper-clad steel wires, copper plays the role of conducting weak current signals, ensuring the transmission performance of the cable, while the steel wire plays a supporting role, and has the characteristics of tensile resistance and mechanical damage resistance, and can effectively prevent the cable from being damaged by mice. In addition, the isolation layer 40 formed by weaving copper-clad steel wires can effectively block the entry of external interference signals of the cable, effectively protect the integrity of the transmission signal, and the copper-clad steel wire has a low cost and a small bending radius, so that the overall outer diameter of the cable is small.

[0035] Preferably, the thickness of the copper layer in the copper clad steel wire is not less than 0.002 mm, which can prevent mice from gnawing and damaging the inside of the cable while ensuring good transmission performance and resistance to external signal interference of the cable.

[0036] In a preferred embodiment, the thickness of the water-blocking tape is not less than 0.2 mm, which can better prevent moisture from penetrating into the cable core.

[0037] In one embodiment, the cable core includes a plurality of core assembly units, each core assembly unit includes an insulating core layer and a shielding layer 13 arranged sequentially from the inside to the outside, the insulating core layer is formed by twisting two insulating cores, and the insulating core includes a conductor 11 and an insulating layer 12 arranged sequentially from the inside to the outside; wherein, the gaps between each core assembly unit and between the core assembly unit and the waterproof layer 30 are filled with a filling rope 20. In particular, the number of the core assembly units is not less than 2.

[0038] In this embodiment, the shielding layer 13 can protect the signal transmission in the cable from being interfered by signals outside the cable, and avoid signal interference between different wire core combination units in the cable core.

[0039] In this embodiment, twisting two insulated wire cores to form an insulated wire core layer means twisting the two insulated wire cores together in a certain direction and according to a certain rule.

[0040] In this embodiment, the conductor 11 is a conductive material made of metal, and the metal may be copper, aluminum, silver, etc. Preferably, the conductor 11 of the present application is a single or multiple copper wires.

[0041] In this embodiment, the insulating layer 12 can prevent the exposed wires 11 from short-circuiting to cause equipment damage and the cables exceeding the safety voltage from causing harm to people.

[0042] In this embodiment, the filling rope 20 can keep the cable core in a round shape and complete, making it easier to wrap the water-blocking tape around the cable core, and can also help improve the cable's tensile and sway resistance. The use of a filling rope made of flame-retardant material can further improve the flame retardant properties of the cable. In the present application, the filling rope 20 can be any material that can be filled in the cable without affecting the normal use of the cable and helps keep the cable core in a round shape and complete.

[0043] In a preferred embodiment, the insulating layer 12 is one of polyethylene, cross-linked polyethylene and polyvinyl chloride.

[0044] In a preferred embodiment, the shielding layer 13 is an aluminum-plastic composite tape wrapped around the insulating core layer. The aluminum-plastic composite tape is composed of a single-sided aluminum tape or a double-sided aluminum tape composited with ethylene-acrylic acid copolymer (EAA). The copolymer has good bonding properties with the aluminum tape base tape, and forms a strong bond with the polyethylene and halogen-free polyolefin (HFPO) sheath resin to form a comprehensive protective layer, which has the characteristics of good moisture-proof and external interference shielding effects. The present application uses an aluminum-plastic composite tape wrapped around the insulating core layer as the shielding layer 13, which provides a reliable moisture-proof, shielding and chemical protection layer for the insulating core layer, further provides waterproof protection for the cable, and at the same time, can protect the signal transmission in the cable from interference from external signals of the cable, and avoid signal interference between different core combination units in the cable core. In particular, the aluminum-plastic composite tape used in the present application can be any one of a single-sided aluminum-plastic composite tape or a double-sided aluminum-plastic composite tape.

[0045] Preferably, the thickness of the aluminum foil in the aluminum-plastic composite tape is not less than 0.008 mm, which can better shield signal interference, prevent water and moisture, and prevent lightning strikes.

[0046] In summary of the above embodiments, the utility model plays a preliminary role of rodent-proofing and waterproofing by setting an outer sheath 60 made of rodent-proof plastic on the outermost layer of the cable. An inner sheath 50 is set inside the outer sheath 60. High-density polyethylene is used as the material of the inner sheath 50, which further plays a role of waterproofing and protecting the cable, and also ensures good insulation performance. At the same time, it is also safer and more environmentally friendly. An isolation layer 40 is set inside the inner sheath 50. The isolation layer 40 is woven from copper-clad steel wires, wherein copper plays a role of conducting weak current signals and ensures the transmission performance of the cable, while the steel wire plays a supporting role and has the characteristics of tensile resistance and mechanical damage resistance, which can further effectively prevent the cable from being damaged by rats. In addition, the isolation layer 40 can also effectively block the entry of external interference signals of the cable, effectively protect the integrity of the transmission signal, and the copper-clad steel wire has a low cost and a small bending radius, so that the overall outer diameter of the cable is small. A waterproof layer 30 is arranged inside the isolation layer 40. The material of the waterproof layer 30 is a water-blocking tape. The water-blocking tape expands when encountering moisture or water and fills the gaps in the cable core, thereby further blocking moisture or water from entering the cable core, effectively playing the role of sealing, waterproofing, and moisture-proofing, preventing the cable core from getting damp and causing the insulation performance to decrease, thereby ensuring the transmission performance of the cable and extending the life of the cable.

[0047] The cable core of the utility model includes a plurality of wire core combination units, each wire core combination unit includes an insulating wire core layer and a shielding layer 13 arranged in sequence from the inside to the outside, the insulating wire core layer is formed by twisting two insulating wire cores, the insulating wire core includes a wire 11 and an insulating layer 12 arranged in sequence from the inside to the outside, the insulating layer 12 can prevent the exposed wire 11 from short-circuiting to cause damage to the equipment and the cable exceeding the safety voltage from causing harm to people, and the material of the shielding layer 13 is an aluminum-plastic composite tape, which further provides waterproof protection for the cable, and at the same time, can protect the signal transmission in the cable from interference from external signals of the cable, and avoid signal interference between different wire core combination units in the cable core. In addition, the gaps between each wire core combination unit and between the wire core combination unit and the waterproof layer 30 are filled with filling ropes 20, which can keep the cable core round and complete, and can also help improve the cable's tensile and sway resistance.

[0048] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the invention claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0049] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0050] The above are only preferred embodiments of this specification and are not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A rodent-proof and waterproof computer cable, characterized in that: It includes a cable core, a waterproof layer, an isolation layer, an inner sheath and an outer sheath which are arranged in sequence from the inside to the outside; The waterproof layer is a water-blocking tape wrapped around the cable core; the isolation layer is a plurality of bimetallic wires woven on the waterproof layer; the inner sheath is a high-density polyethylene extruded on the isolation layer; the outer sheath is a rodent-proof plastic extruded on the inner sheath; The cable core includes a plurality of wire core combination units, each of which includes an insulating wire core layer and a shielding layer arranged in sequence from the inside to the outside, and the insulating wire core layer is formed by twisting two insulating wire cores.

2. The rodent-proof and waterproof computer cable according to claim 1, characterized in that: The bimetallic wire is a copper clad steel wire.

3. The rodent-proof and waterproof computer cable according to claim 2, characterized in that: The thickness of the copper layer in the copper clad steel wire is not less than 0.002 mm.

4. The rodent-proof and waterproof computer cable according to claim 1, characterized in that: The thickness of the water blocking tape is not less than 0.2 mm.

5. The rodent-proof and waterproof computer cable according to claim 1, characterized in that: The insulated wire core comprises a conductor and an insulating layer arranged sequentially from the inside to the outside; Wherein, the gaps between each of the wire core assembly units and between the wire core assembly units and the waterproof layer are filled with filling ropes.

6. The rodent-proof and waterproof computer cable according to claim 5, characterized in that: The insulating layer is one of polyethylene, cross-linked polyethylene and polyvinyl chloride.

7. The rodent-proof and waterproof computer cable according to claim 1, characterized in that: The shielding layer is an aluminum-plastic composite tape wrapped around the insulating wire core layer.

8. The rodent-proof and waterproof computer cable according to claim 7, characterized in that: The thickness of the aluminum foil in the aluminum-plastic composite tape is not less than 0.008 mm.

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