Heavy waterproof rubber flexible cable

Abstract

The utility model discloses a heavy waterproof rubber flexible cable, which relates to the field of cables and comprises conductors, insulating layers fixedly mounted on the conductors, conductive insulating wire cores combined by the conductors and the insulating layers, a cable core combined by a plurality of conductive insulating wire cores, an external insulating layer fixedly mounted on the cable core, and a flexible layer fixedly mounted on the external insulating layer. The sealing layer is fixedly installed on the soft layer, the flame-retardant layer is fixedly installed on the sealing layer, and the outer protective layer is fixedly installed on the flame-retardant layer. According to the utility model, IE4 type ethylene-propylene insulation is adopted for insulation, so that the insulation performance of the wire core conductor is better, especially the insulation performance of the wire core in a humid environment can be kept good, and the wire cores are arranged according to a certain sequence to form the cable, so that the application field of the cable is also wide; the cable has excellent physical and mechanical properties, the mechanical properties of the cable are far better than those of a common rubber cable under normal-temperature and humid conditions, and the cable has good weather resistance and waterproof performance.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a heavy-duty waterproof rubber soft cable. Background Art

[0002] Rubber sheathed cables are used in a wide range of industries and environments, and there are many types of them. Since rubber sheathed cables are mostly soft in structure, easy to lay and reel in, and can be used in a mobile manner, they are very popular in all walks of life. Heavy-duty waterproof rubber sheathed cables are one type of rubber sheathed cables, mainly used to transmit electrical energy on submersible motors with AC voltages of 450 / 750V and below. This requires that waterproof rubber sheathed cables have good basic bending properties and can withstand frequent movement, as well as good electrical insulation properties under long-term immersion in water and high water pressure.

[0003] In the prior art, waterproof rubber sheathed cables are just ordinary rubber sheathed cables. There is no big problem in using them in water for a short time, but once they are used for a longer time, moisture will still penetrate the cable sheath layer, penetrate into the cable, and even enter the conductor, thus greatly reducing the safety and service life of the cable. Therefore, a heavy-duty waterproof rubber soft cable is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide a heavy-duty waterproof rubber soft cable to solve the problem that the waterproof rubber sheathed cable proposed in the above background technology is just an ordinary rubber sheathed cable. It is not a big problem to use it in water for a short time, but once it is used for a long time, moisture will still penetrate the cable sheath layer, penetrate into the inside of the cable, and even enter the conductor, thus greatly reducing the safety and service life of the cable.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heavy-duty waterproof rubber soft cable comprises a conductor, an insulating layer is fixedly mounted on the conductor, the insulating layer is IE4 type ethylene propylene rubber insulation, the conductor and the insulating layer are combined into a conductive insulating core, a plurality of conductive insulating cores are combined into a cable core, an outer insulating layer is fixedly mounted on the cable core, a soft layer is fixedly mounted on the outer insulating layer, a sealing layer is fixedly mounted on the soft layer, a flame retardant layer is fixedly mounted on the sealing layer, and an outer sheath is fixedly mounted on the flame retardant layer.

[0007] Preferably, the conductor is made of twisted Category 5 soft copper wires, and the diameter of the conductor is 3 mm.

[0008] Preferably, the thickness of the insulating layer is 0.3 to 0.5 mm.

[0009] Preferably, the outer insulating layer is cross-linked polyethylene, and the thickness of the outer insulating layer is 0.2 to 0.4 mm.

[0010] Preferably, the soft layer is a polypropylene mesh tear tape, and the thickness of the soft layer is 0.1 to 0.3 mm.

[0011] Preferably, the sealing layer is polyurethane foam, the thickness of the sealing layer is 0.2 to 0.5 mm, and the flame retardant layer is aluminum hydroxide, the thickness of the flame retardant layer is 0.1 mm.

[0012] Preferably, the outer protective layer is an EM2 type chlorosulfonated polyethylene rubber outer protective layer, and the thickness of the outer protective layer is 0.3 to 0.6 mm.

[0013] The beneficial effects of the utility model are:

[0014] The insulation of this heavy-duty waterproof rubber soft cable adopts IE4 type EPDM insulation, which makes the insulation performance of the core conductor better, especially in a humid environment, the insulation of the core can maintain good insulation performance. The cores are arranged into cables in a certain order, so that the cable can be used in a wide range of fields. The EM2 type chlorosulfonated polyethylene rubber sheath is used, which makes the cable have excellent physical and mechanical properties. Under normal temperature and humid conditions, its mechanical properties are far superior to ordinary rubber cables, and it has good weather resistance and waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a heavy-duty waterproof rubber soft cable.

[0016] In the figure: 100, conductor; 200, insulation layer; 300, conductive insulated core; 400, cable core; 500, external insulation layer; 600, soft layer; 700, sealing layer; 800, flame retardant layer; 900, outer sheath. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1 A heavy-duty waterproof rubber soft cable comprises a conductor 100, an insulating layer 200 is fixedly installed on the conductor 100, the conductor 100 and the insulating layer 200 are combined into a conductive insulating core 300, a plurality of conductive insulating cores 300 are combined into a cable core 400, an outer insulating layer 500 is fixedly installed on the cable core 400, a soft layer 600 is fixedly installed on the outer insulating layer 500, a sealing layer 700 is fixedly installed on the soft layer 600, a flame retardant layer 800 is fixedly installed on the sealing layer 700, and an outer sheath 900 is fixedly installed on the flame retardant layer 800.

[0019] The conductor is made of Category 5 soft copper wires twisted together. To ensure the conductivity of the conductor, all the conductors used are Category 5 soft conductors drawn from oxygen-free copper. The insulation layer is IE4 type ethylene propylene rubber insulation to ensure that all the conductive insulated cores have better conductivity and insulation in a humid environment. Multiple insulated cores are twisted into a cable core in a certain arrangement order. No filling is required when the cable core is twisted. The sheath is squeezed into the gap between the insulating cores in the form of sheath extrusion to ensure the density between the insulation and the sheath. The sheath is an EM2 type chlorosulfonated polyethylene rubber sheath to ensure that the cable can better protect against moisture in a humid environment. Water effect, the outer insulating layer 500 is cross-linked polyethylene, through cross-linking treatment, the heat resistance and resistance to electrical stress aging are improved, and the insulation effect inside the cable is improved; the soft layer 600 is a polypropylene mesh tear tape with good softness. As a filling material, it ensures that the interior does not collapse while improving the overall softness of the cable; the sealing layer 700 is polyurethane foam, which is a good cable waterproof material; the flame retardant layer 800 is aluminum hydroxide, which is non-toxic, non-volatile, inexpensive, flame retardant, and smoke-eliminating, which can improve the flame retardant effect of the cable and avoid continuous burning of the cable.

[0020] In an optional embodiment: the conductor 100 is formed by twisting Category 5 soft copper wires, the diameter of the conductor 100 is 3 mm, and the conductors are all Category 5 soft conductors drawn from oxygen-free copper.

[0021] In an optional embodiment: the insulating layer 200 is IE4 type EPDM insulation, the thickness of the insulating layer 200 is 0.3 to 0.5 mm, and the insulating layer is IE4 type EPDM insulation to ensure that all conductive insulating cores have better conductive insulation in a humid environment. Multiple insulating cores are twisted into a cable core in a certain arrangement order. No filling is required when the cable core is twisted. The sheath is squeezed into the gaps between the insulating cores in the form of sheath extrusion to ensure the density between the insulation and the sheath.

[0022] In an optional embodiment: the outer insulating layer 500 is cross-linked polyethylene, the thickness of the outer insulating layer 500 is 0.2 to 0.4 mm, and the outer insulating layer 500 is cross-linked polyethylene. Through cross-linking treatment, the heat resistance and resistance to electrical stress aging are improved, and the insulation effect inside the cable is improved.

[0023] In an optional embodiment: the soft layer 600 is a polypropylene mesh tear tape, the thickness of the soft layer 600 is 0.1 to 0.3 mm, the soft layer 600 is a polypropylene mesh tear tape, and has good softness. As a filling material, it ensures that the interior does not collapse while improving the overall softness of the cable.

[0024] In an optional embodiment: the sealing layer 700 is polyurethane foam, the thickness of the sealing layer 700 is 0.2 to 0.5 mm, the flame retardant layer 800 is aluminum hydroxide, the thickness of the flame retardant layer 800 is 0.1 mm, the sealing layer 700 is polyurethane foam, which is a good cable waterproof material, the flame retardant layer 800 is aluminum hydroxide, which is non-toxic, non-volatile, inexpensive, flame retardant, and smoke-eliminating, which can improve the flame retardant effect of the cable and avoid continuous burning of the cable.

[0025] In an optional embodiment: the outer sheath 900 is an EM2 type chlorosulfonated polyethylene rubber outer sheath, and the thickness of the outer sheath 900 is 0.3 to 0.6 mm. It should be noted that the sheath is an EM2 type chlorosulfonated polyethylene rubber sheath to ensure that the cable has a better waterproof effect in a humid environment.

[0026] Working principle of this utility model:

[0027] The conductor is made of Category 5 soft copper wires twisted together. To ensure the conductivity of the conductor, all the conductors used are Category 5 soft conductors drawn from oxygen-free copper. The insulation layer is IE4 type ethylene propylene rubber insulation to ensure that all the conductive insulated cores have better conductivity and insulation in a humid environment. Multiple insulated cores are twisted into a cable core in a certain arrangement order. No filling is required when the cable core is twisted. The sheath is squeezed into the gap between the insulating cores in the form of sheath extrusion to ensure the density between the insulation and the sheath. The sheath is an EM2 type chlorosulfonated polyethylene rubber sheath to ensure that the cable can better protect against moisture in a humid environment. Water effect, the outer insulating layer 500 is cross-linked polyethylene, through cross-linking treatment, the heat resistance and resistance to electrical stress aging are improved, and the insulation effect inside the cable is improved; the soft layer 600 is a polypropylene mesh tear tape with good softness. As a filling material, it ensures that the interior does not collapse while improving the overall softness of the cable; the sealing layer 700 is polyurethane foam, which is a good cable waterproof material; the flame retardant layer 800 is aluminum hydroxide, which is non-toxic, non-volatile, inexpensive, flame retardant, and smoke-eliminating, which can improve the flame retardant effect of the cable and avoid continuous burning of the cable.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heavy-duty waterproof rubber flexible cable, comprising a conductor (100), characterized in that: An insulating layer (200) is fixedly mounted on the conductor (100), the insulating layer (200) is IE4 type ethylene propylene rubber insulation, the conductor (100) and the insulating layer (200) are combined into a conductive insulating core (300), a plurality of conductive insulating cores (300) are combined into a cable core (400), an external insulating layer (500) is fixedly mounted on the cable core (400), a soft layer (600) is fixedly mounted on the external insulating layer (500), a sealing layer (700) is fixedly mounted on the soft layer (600), a flame retardant layer (800) is fixedly mounted on the sealing layer (700), and an outer protective layer (900) is fixedly mounted on the flame retardant layer (800).

2. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The conductor (100) is formed by twisting Category 5 soft copper wires, and the diameter of the conductor (100) is 3 mm.

3. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The thickness of the insulating layer (200) is 0.3 to 0.5 mm.

4. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The outer insulating layer (500) is cross-linked polyethylene, and the thickness of the outer insulating layer (500) is 0.2 to 0.4 mm.

5. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The soft layer (600) is a polypropylene mesh tear tape, and the thickness of the soft layer (600) is 0.1 to 0.3 mm.

6. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The sealing layer (700) is polyurethane foam, and the thickness of the sealing layer (700) is 0.2 to 0.5 mm. The flame retardant layer (800) is aluminum hydroxide, and the thickness of the flame retardant layer (800) is 0.1 mm.

7. A heavy duty waterproof rubber flexible cable according to claim 1, characterized in that: The outer protective layer (900) is an EM2 type chlorosulfonated polyethylene rubber outer protective layer, and the thickness of the outer protective layer (900) is 0.3 to 0.6 mm.

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