A compression-resistant wear-resistant cable

Abstract

The utility model discloses a kind of compression-resistant wear-resistant cable, it is related to cable technical technical field, improve the problem that cable compression-resistant wear-resistant performance is poor, including cable core, the outer surface of the cable core is provided with inner protective layer, the outer surface of the inner protective layer is evenly provided with rubber strip, the outer surface of the rubber strip is provided with outer protective layer, the inner protective layer includes high-temperature resistant layer and first wear layer, the utility model can protect the surface of cable core by setting inner protective layer, improve the protective performance of cable core surface, by setting rubber strip, can improve the compression-resistant inward of cable core surface, avoid that cable core is damaged due to excessive pressure, by setting outer protective layer, the outer surface of rubber strip can be protected, also can further improve the compression-resistant wear-resistant performance of cable core surface, avoid that cable is damaged due to dragging, rolling and the like, improve the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a pressure-resistant and wear-resistant cable. Background Technology

[0002] A cable is an electrical or signal transmission device, typically a rope-like cable composed of several or groups of conductors twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer. Although currently used cables can meet normal usage requirements, they still have defects in actual use. For example, most currently used cables have poor pressure resistance and abrasion resistance. Because cables need to be dragged during installation, and are on the ground, their internal structure is easily altered when they are run over by vehicles, which can even cause surface damage and affect their subsequent use. Therefore, a pressure-resistant and abrasion-resistant cable is proposed. Utility Model Content

[0003] To improve the poor compressive strength and abrasion resistance of cables, this utility model provides a compressive strength and abrasion resistance cable.

[0004] This utility model provides a pressure-resistant and wear-resistant cable, which adopts the following technical solution:

[0005] A pressure-resistant and wear-resistant cable includes a cable core, an inner protective layer is provided on the outer surface of the cable core, rubber strips are uniformly disposed on the outer surface of the inner protective layer, and an outer protective layer is provided on the outer surface of the rubber strips.

[0006] The inner protective layer includes a high-temperature resistant layer and a first wear-resistant layer;

[0007] The outer protective layer includes a second wear-resistant layer, a flame-retardant layer, a semi-conductive layer, a heat-insulating layer, a pressure-resistant layer, and a third wear-resistant layer.

[0008] By adopting the above technical solutions, the compressive and abrasion resistance of the cable core surface can be improved, avoiding damage to the cable caused by dragging, crushing, etc., and extending the service life of the cable.

[0009] Optionally, the high-temperature resistant layer is disposed on the outer surface of the cable core, and the first wear-resistant layer is disposed on the outer surface of the high-temperature resistant layer.

[0010] Optionally, the second wear-resistant layer is disposed on the outer surface of the rubber strip, the flame-retardant layer is disposed on the outer surface of the second wear-resistant layer, and the semi-conductive layer is disposed on the outer surface of the flame-retardant layer.

[0011] Optionally, the heat insulation layer is disposed on the outer surface of the flame retardant layer, the pressure-resistant layer is disposed on the outer surface of the heat insulation layer, and the third wear-resistant layer is disposed on the outer surface of the pressure-resistant layer.

[0012] Optionally, the high-temperature resistant layer is made of silicone rubber, and the first and second wear-resistant layers are made of polyurethane.

[0013] Optionally, the flame-retardant layer is a flame-retardant fiber woven layer, and the heat insulation layer is a glass fiber woven layer.

[0014] Optionally, the compressive layer is made of EPDM rubber, and the third wear-resistant layer is made of polyvinyl chloride.

[0015] In summary, this utility model has the following beneficial effects:

[0016] This invention protects the surface of the cable core by setting an inner protective layer, thereby improving the protective performance of the cable core surface. By setting a rubber strip, the compressive strength of the cable core surface is improved inward, preventing damage to the cable core due to excessive pressure. By setting an outer protective layer, the outer surface of the rubber strip is protected, and the compressive strength and wear resistance of the cable core surface are further improved, preventing damage to the cable due to dragging, crushing, etc., and extending the service life of the cable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the inner protective layer structure of this utility model;

[0020] Figure 4 The structure of this utility model Figure 2 A magnified view of a portion of point A in the middle.

[0021] In the diagram: 1. Cable core; 2. Inner protective layer; 201. High temperature resistant layer; 202. First wear-resistant layer; 3. Rubber strip; 4. Outer protective layer; 401. Second wear-resistant layer; 402. Flame retardant layer; 403. Semi-conductive layer; 404. Heat insulation layer; 405. Compression resistant layer; 406. Third wear-resistant layer. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please refer to Figure 1-4 A pressure-resistant and wear-resistant cable includes a cable core 1, an inner protective layer 2 is provided on the outer surface of the cable core 1, rubber strips 3 are uniformly provided on the outer surface of the inner protective layer 2, and an outer protective layer 4 is provided on the outer surface of the rubber strips 3.

[0027] The inner protective layer 2 includes a high-temperature resistant layer 201 and a first wear-resistant layer 202;

[0028] The outer protective layer 4 includes a second wear-resistant layer 401, a flame-retardant layer 402, a semi-conductive layer 403, a heat insulation layer 404, a pressure-resistant layer 405, and a third wear-resistant layer 406.

[0029] As a further technical optimization of this utility model, a high-temperature resistant layer 201 is disposed on the outer surface of the cable core 1, and a first wear-resistant layer 202 is disposed on the outer surface of the high-temperature resistant layer 201.

[0030] As a further technical optimization of this utility model, the second wear-resistant layer 401 is disposed on the outer surface of the rubber strip 3, the flame-retardant layer 402 is disposed on the outer surface of the second wear-resistant layer 401, and the semi-conductive layer 403 is disposed on the outer surface of the flame-retardant layer 402.

[0031] As a further technical optimization of this utility model, the heat insulation layer 404 is disposed on the outer surface of the flame retardant layer 402, the pressure-resistant layer 405 is disposed on the outer surface of the heat insulation layer 404, and the third wear-resistant layer 406 is disposed on the outer surface of the pressure-resistant layer 405.

[0032] As a further technical optimization of this utility model, the high-temperature resistant layer 201 is made of silicone rubber. Silicone rubber has good low-temperature resistance and can generally still work at -55℃. After introducing phenyl, it can reach -73℃. Silicone rubber also has outstanding heat resistance. It can work for a long time at 180℃ and can withstand several weeks or longer at slightly higher than 200℃ while still maintaining elasticity. It can withstand high temperatures above 300℃ instantaneously. Silicone rubber has good air permeability, and its oxygen permeability is the highest among synthetic polymers. The first wear-resistant layer 202 and the second wear-resistant layer 401 are made of polyurethane. Polyurethane mainly has a thermoplastic linear structure. It has better stability, chemical resistance, resilience and mechanical properties than PVC foam material. It has less compression deformation and good heat insulation, sound insulation, shock resistance and anti-toxic properties. The properties of polyurethane elastomer are between those of plastic and rubber. It is oil-resistant, wear-resistant, low-temperature resistant, aging resistant, has high hardness and elasticity.

[0033] As a further technical optimization of this utility model, the flame retardant layer 402 is a flame retardant fiber woven layer. The flame retardant fiber itself does not produce flames and extinguishes itself by smoldering when removed from the flame. The heat insulation layer 404 is a glass fiber woven layer. Glass fiber has good insulation, heat resistance and corrosion resistance. The flame retardant layer 402 is wrapped around the outer surface of the second wear-resistant layer 401, and the heat insulation layer 404 is wrapped around the outer surface of the semi-conductive layer 403.

[0034] As a further technical optimization of this utility model, the pressure-resistant layer 405 is made of EPDM rubber, which has good chemical corrosion resistance, good impact elasticity, and good toughness. The third wear-resistant layer 406 is made of polyvinyl chloride, which has the characteristics of being non-flammable, aging-resistant, oil-resistant, and chemical-resistant. The PVC sheath has good wear resistance and can resist oil, acid, alkali, bacteria, moisture, and sunlight.

[0035] As a further technical optimization of this utility model, the semiconductive layer 403 is composed of a matrix resin and a conductive filler. The semiconductive layer 403 can eliminate the annular air gap inside the cable, homogenize the electric field distribution, and avoid air gap discharge.

[0036] As a further technical optimization of this utility model, the surface of the rubber strip 3 is in contact with the surface of the first wear-resistant layer 202 and the second wear-resistant layer 401, and the adjacent rubber strips 3 are tightly bonded together.

[0037] In this embodiment: by setting the inner protective layer 2, the surface of the cable core 1 can be protected, improving the protective performance of the cable core 1 surface. By setting the rubber strip 3, the compressive strength of the cable core 1 surface can be improved, preventing damage to the cable core 1 caused by excessive pressure. At the same time, it can quickly recover after being crushed, resulting in good performance. By setting the outer protective layer 4, the outer surface of the rubber strip 3 can be protected, and the compressive strength and wear resistance of the cable core 1 surface can be further improved, preventing damage to the cable caused by dragging, crushing, etc., and improving the service life of the cable.

[0038] The implementation principle of this utility model is as follows: In use, the inner protective layer 2 can protect the surface of the cable core 1, improving the protective performance of the cable core 1 surface. The high-temperature resistant layer 201 improves the high-temperature resistance of the cable core 1 surface, while the first wear-resistant layer 202 improves the wear resistance of the cable core 1 surface. The rubber strip 3 improves the compressive strength of the cable core 1 surface, preventing damage caused by excessive pressure. It also allows for rapid recovery after being crushed, resulting in good performance. The outer protective layer 4 protects the outer surface of the rubber strip 3. The cable is protected by a second wear-resistant layer 401, which improves the wear resistance of the rubber strip 3 and prevents the rubber strip 3 from abrading the outer protective layer 4. The flame-retardant layer 402 improves the flame-retardant performance of the cable. The heat insulation layer 404 improves the heat insulation performance of the cable and prevents heat from being transferred outward and causing the cable surface to overheat. The compression-resistant layer 405 further improves the compression resistance of the cable surface. The third wear-resistant layer 406 improves the wear resistance of the cable surface and prevents the cable from being damaged by dragging, crushing, etc., thereby increasing the service life of the cable.

[0039] 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 pressure-resistant and abrasion-resistant cable, comprising a cable core (1), characterized in that: The outer surface of the cable core (1) is provided with an inner protective layer (2), the outer surface of the inner protective layer (2) is uniformly provided with rubber strips (3), and the outer surface of the rubber strips (3) is provided with an outer protective layer (4). The inner protective layer (2) includes a high-temperature resistant layer (201) and a first wear-resistant layer (202); The outer protective layer (4) includes a second wear-resistant layer (401), a flame-retardant layer (402), a semi-conductive layer (403), a heat insulation layer (404), a pressure-resistant layer (405), and a third wear-resistant layer (406).

2. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The high-temperature resistant layer (201) is disposed on the outer surface of the cable core (1), and the first wear-resistant layer (202) is disposed on the outer surface of the high-temperature resistant layer (201).

3. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The second wear-resistant layer (401) is disposed on the outer surface of the rubber strip (3), the flame-retardant layer (402) is disposed on the outer surface of the second wear-resistant layer (401), and the semi-conductive layer (403) is disposed on the outer surface of the flame-retardant layer (402).

4. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The heat insulation layer (404) is disposed on the outer surface of the flame retardant layer (402), the pressure-resistant layer (405) is disposed on the outer surface of the heat insulation layer (404), and the third wear-resistant layer (406) is disposed on the outer surface of the pressure-resistant layer (405).

5. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The high-temperature resistant layer (201) is made of silicone rubber, and the first wear-resistant layer (202) and the second wear-resistant layer (401) are made of polyurethane.

6. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The flame-retardant layer (402) is a flame-retardant fiber woven layer, and the heat insulation layer (404) is a glass fiber woven layer.

7. The pressure-resistant and wear-resistant cable according to claim 1, characterized in that: The compressive layer (405) is made of EPDM rubber, and the third wear-resistant layer (406) is made of polyvinyl chloride.

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