Anti-corrosion durable control cable for rail transit

Abstract

The utility model discloses a kind of anti-corrosion durable control cables for rail transit.It involves cable technical field, using including conductor, elastic buffer layer, corrosion-resistant coating, the quantity of conductor is provided with 3, the surface between 3 conductors is uniformly embedded with flexible support strip, the flexible support strip is triangularly arranged, the surface of the flexible support strip is provided with cavity.The utility model is provided with filler between conductor and inner protective sleeve, the filler is made of flame-retardant polyolefin filling strip, adjacent conductors are separated, to prevent one conductor from burning another conductor quickly, thereby improving the flame retardancy of control cable, the double-layer protection structure of inner protective sleeve made of silicone rubber material and outer protective sleeve vulcanized from acid and alkali-resistant neoprene material can better protect the conductor, and the external corrosive substances can be better isolated outside the outer sheath, greatly improve the corrosion resistance of control cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a corrosion-resistant and durable control cable for rail transit. Background Technology

[0002] Rail transit refers to a type of transportation vehicle or system that requires vehicles to run on specific tracks. Urban rail transit is defined as "a general term for rapid, high-capacity public transportation that is typically powered by electricity and operates using a wheel-rail system." With the diversified development of train and railway technology, rail transit has taken on increasingly more types, not only covering long-distance land transportation but also being widely used in short- and medium-distance urban public transportation. Common rail transit systems include traditional railways (ordinary railways, intercity railways, and suburban railways), subways, light rail, and trams. In addition, there are new types of rail transit such as maglev rail systems and monorail systems.

[0003] Currently, cables are required for the construction and laying of rail transit systems. Existing cables rely solely on the outer rubber layer for corrosion protection, which is ineffective. Furthermore, the lack of effective internal support results in poor overall compressive strength. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corrosion-resistant and durable control cable for rail transit, solving the problems raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A corrosion-resistant and durable control cable for rail transit includes conductors, an elastic buffer layer, and a corrosion-resistant coating. The cable comprises three conductors, each with a flexible support strip embedded between its surface. The flexible support strips are triangular in shape and have cavities on their surfaces. An inner protective sleeve surrounds each conductor, and a filling layer is placed between the conductor and the inner protective sleeve. A flame-retardant layer surrounds the inner protective sleeve, followed by a corrosion-resistant layer. A pressure-resistant layer surrounds the corrosion-resistant layer, and an elastic buffer layer surrounds the pressure-resistant layer. An outer protective sleeve surrounds the elastic buffer layer, and its outer surface is uniformly coated with a corrosion-resistant coating using a spraying device. Several wear-resistant raised strips are evenly distributed in a ring on the outer surface of the outer protective sleeve.

[0006] Preferably, the conductor comprises a plurality of aluminum alloy wires, the aluminum alloy wires are surrounded by an acid and alkali resistant EPDM rubber insulation layer, an insulating filler is disposed between the aluminum alloy wires and the acid and alkali resistant EPDM rubber insulation layer, and a metal shielding layer is disposed around the acid and alkali resistant EPDM rubber insulation layer, the insulating filler being made of polyvinyl chloride material.

[0007] Preferably, the elastic buffer layer includes an arc-shaped elastic plate, water-absorbing and swelling rubber, and water-absorbing material. The outer surface of the pressure-resistant layer is arrayed with a plurality of arc-shaped elastic plates. Water-absorbing and swelling rubber is disposed between the arc-shaped elastic plates and the pressure-resistant layer. Water-absorbing material is filled between the pressure-resistant layer, the arc-shaped elastic plates, and the outer protective sleeve. The water-absorbing material is a sponge water-absorbing material.

[0008] Preferably, the inner protective sleeve is made of silicone rubber, and the outer protective sleeve is made of acid and alkali resistant neoprene rubber.

[0009] Preferably, the filler layer is made of flame-retardant polyolefin filler strips.

[0010] Preferably, the flame-retardant layer is made of antimony trioxide.

[0011] Preferably, the corrosion-resistant layer is made of chlorosulfonated polyethylene rubber material.

[0012] Preferably, the compressive layer is made of manganese steel.

[0013] Preferably, the corrosion-resistant coating is made of chlorinated rubber coating.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model provides a corrosion-resistant and durable control cable for rail transit. It features an acid- and alkali-resistant EPDM rubber insulation layer around an aluminum alloy conductor, with a polyvinyl chloride (PVC) insulating filler between the conductor and the insulation layer. This combination of the EPDM insulation layer and the filler ensures insulation between the conductor and the surrounding environment or adjacent conductors. A filler layer made of flame-retardant polyolefin strips separates adjacent conductors, preventing rapid ignition of one conductor by a burning one, thus improving the cable's flame retardancy. The double-layer protection structure, consisting of an inner protective sheath made of silicone rubber and an outer protective sheath vulcanized from acid- and alkali-resistant chloroprene rubber, provides better protection for the conductor and effectively isolates corrosive substances from the outer sheath. This design significantly improves the corrosion resistance of the control cable. The flame-retardant layer, made of antimony trioxide, inhibits and delays combustion while remaining relatively resistant to burning itself, further enhancing the cable's flame retardancy. The corrosion-resistant layer, made of chlorosulfonated polyethylene rubber, effectively resists chemical and electrical corrosion. The compressive strength layer, made of manganese steel, provides high strength, preventing deformation under stress and significantly improving the cable's compressive strength. A corrosion-resistant coating, made of chlorinated rubber, is evenly applied to the outer surface of the outer protective sheath, further enhancing its corrosion resistance. Several wear-resistant protrusions are evenly arranged in a ring on the outer surface of the outer protective sheath, greatly improving the cable's abrasion resistance and reducing wear caused by dragging, thus extending the coating's service life. This utility model incorporates a flexible support strip, which is triangular in shape and has a cavity inside. The flexible support strip provides flexible support for the three conductors, preventing them from coming into close contact and squeezing each other when the control cable is under stress, thus improving its compressive strength and greatly extending the service life of the control cable. This invention features an elastic buffer layer comprising an arc-shaped elastic plate, water-absorbing and swelling rubber, and a water-absorbing material. The water-absorbing and swelling rubber is positioned between the arc-shaped elastic plate and the pressure-resistant layer. The arc-shaped elastic plate increases pressure resistance. When the arc-shaped elastic plate wears down, the water-absorbing and swelling rubber absorbs water and expands, thus filling the elastic buffer layer. A water-absorbing material, specifically a sponge-like material, is filled between the pressure-resistant layer, the arc-shaped elastic plate, and the outer protective sleeve. This sponge absorbs moisture from the air, preventing moisture from entering the interior through gaps when the outer protective sleeve breaks. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A.

[0018] Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point B.

[0019] In the diagram: 1. Conductor; 1.1. Aluminum alloy wire; 1.2. Acid and alkali resistant EPDM rubber insulation layer; 1.3. Metal shielding layer; 1.4. Insulating filler; 2. Flexible support strip; 3. Cavity; 4. Inner protective sleeve; 5. Filling layer; 6. Flame retardant layer; 7. Corrosion resistant layer; 8. Compression resistant layer; 9. Elastic buffer layer; 9.1. Arc-shaped elastic plate; 9.2. Water-absorbing and swelling rubber; 9.3. Water-absorbing material; 10. Outer protective sleeve; 11. Corrosion resistant coating; 12. Wear-resistant raised strip. Detailed Implementation

[0020] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0021] According to an embodiment of the present invention, a corrosion-resistant and durable control cable for rail transit is provided.

[0022] Example 1: As shown in the attached diagram of the instruction manual. Figure 1As shown, a corrosion-resistant and durable control cable for rail transit includes a conductor 1, an elastic buffer layer 9, and a corrosion-resistant coating 11. There are three conductors 1, and flexible support strips 2 are embedded between the surfaces of each conductor 1. The flexible support strips 2 are triangular in shape and have cavities 3 on their surfaces. An inner protective sleeve 4 is provided around each conductor 1. A filling layer 5 is provided between the conductor 1 and the inner protective sleeve 4. A flame-retardant layer 6 is provided around the inner protective sleeve 4. A corrosion-resistant layer 7 is provided around the flame-retardant layer 6. A pressure-resistant layer 8 is provided around the corrosion-resistant layer 7. An elastic buffer layer 9 is provided around the pressure-resistant layer 8. An outer protective sleeve 10 is provided around the elastic buffer layer 9. The outer surface of the outer protective sleeve 10 is uniformly covered with the corrosion-resistant coating 11 using a spraying device. Several wear-resistant protrusions 12 are uniformly arranged in a ring on the outer surface of the outer protective sleeve 10.

[0023] Example 2: As shown in the attached diagram of the instruction manual. Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a corrosion-resistant and durable control cable for rail transit features an acid- and alkali-resistant EPDM rubber insulation layer 1.2 surrounding an aluminum alloy conductor 1.1. A polyvinyl chloride (PVC) insulating filler 1.4 is placed between the aluminum alloy conductor 1.1 and the acid- and alkali-resistant EPDM rubber insulation layer 1.2. The combined use of the acid- and alkali-resistant EPDM rubber insulation layer 1.2 and the insulating filler 1.4 ensures that the conductor 1 in the control cable is insulated from the surrounding environment or adjacent conductors 1. A filler layer 5, made of flame-retardant polyolefin filler strip, is placed between the conductor 1 and the inner protective sheath 4, separating adjacent conductors 1 and preventing the rapid ignition of one conductor 1 by a burning conductor 1, thereby improving the flame retardancy of the control cable. The double-layer protective structure, consisting of an inner protective sheath 4 made of silicone rubber and an outer protective sheath 10 vulcanized from acid- and alkali-resistant chloroprene rubber, provides better protection for the conductor 1 and effectively isolates external corrosive substances from the outer sheath 10, significantly improving the corrosion resistance of the control cable. The flame-retardant layer 6, made of antimony trioxide, inhibits and delays combustion while remaining relatively resistant to burning itself, further enhancing the flame retardancy of the control cable. The corrosion-resistant layer 7, made of chlorosulfonated polyethylene rubber, effectively resists chemical and electrochemical corrosion. The compression-resistant layer 8, made of manganese steel, possesses high strength, making the cable less prone to deformation under stress and significantly improving its compressive strength. A corrosion-resistant coating 11, made of chlorinated rubber, is uniformly applied to the outer surface of the outer protective sleeve 10 using a spraying device, further enhancing the cable's corrosion resistance. Several wear-resistant protrusions 12 are evenly arranged in a ring on the outer surface of the outer protective sleeve 10, greatly improving the cable's abrasion resistance and reducing wear on the corrosion-resistant coating 11 caused by dragging, thus extending its service life.

[0024] The cable incorporates a flexible support bar 2, which is triangular in shape and has a cavity 3 inside. The flexible support bar 2 can provide flexible support for the three conductors 1, preventing the three conductors 1 from getting close to each other and being crushed when the control cable is under stress, thereby improving its compressive strength and greatly extending the service life of the control cable.

[0025] The system incorporates an elastic buffer layer 9, which includes an arc-shaped elastic plate 9.1, a water-absorbing and swelling rubber 9.2, and a water-absorbing material 9.3. The water-absorbing and swelling rubber 9.2 is positioned between the arc-shaped elastic plate 9.1 and the pressure-resistant layer 8. The arc-shaped elastic plate 9.1 increases the pressure resistance. When the arc-shaped elastic plate 9.1 wears down, the water-absorbing and swelling rubber 9.2 absorbs water and expands, thus filling the elastic buffer plate 9.1. The water-absorbing material 9.3, which is a sponge-like water-absorbing material, is filled between the pressure-resistant layer 8, the arc-shaped elastic plate 9.1, and the outer protective sleeve 10. This sponge absorbs moisture from the air, preventing moisture from entering the interior through gaps when the outer protective sleeve 10 breaks.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; 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 or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion resistant durable control cable for rail transportation, characterized by: The device includes a conductor (1), an elastic buffer layer (9), and a corrosion-resistant coating (11). There are three conductors (1). Flexible support strips (2) are embedded between the surfaces of the three conductors (1). The flexible support strips (2) are triangular in shape and have cavities (3) on their surfaces. An inner protective sleeve (4) is provided around the conductor (1). A filling layer (5) is provided between the conductor (1) and the inner protective sleeve (4). A flame-retardant layer (6) is provided around the inner protective sleeve (4). A corrosion-resistant layer (7) is provided around the flame-retardant layer (6). A pressure-resistant layer (8) is provided around the corrosion-resistant layer (7). An elastic buffer layer (9) is provided around the pressure-resistant layer (8). An outer protective sleeve (10) is provided around the elastic buffer layer (9). The outer surface of the outer protective sleeve (10) is uniformly covered with a corrosion-resistant coating (11) by a spraying device. Several wear-resistant protrusions (12) are uniformly arranged in a ring on the outer surface of the outer protective sleeve (10).

2. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The conductor (1) includes a plurality of aluminum alloy wires (1.1), and an acid and alkali resistant EPDM rubber insulation layer (1.2) is provided around the aluminum alloy wires (1.1). An insulating filler (1.4) is provided between the aluminum alloy wires (1.1) and the acid and alkali resistant EPDM rubber insulation layer (1.2). A metal shielding layer (1.3) is provided around the acid and alkali resistant EPDM rubber insulation layer (1.2). The insulating filler (1.4) is made of polyvinyl chloride material.

3. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The elastic buffer layer (9) includes an arc-shaped elastic plate (9.1), a water-absorbing and swelling rubber (9.2), and a water-absorbing material (9.3). The outer surface of the pressure-resistant layer (8) is arrayed with a plurality of arc-shaped elastic plates (9.1). A water-absorbing and swelling rubber (9.2) is disposed between the arc-shaped elastic plate (9.1) and the pressure-resistant layer (8). A water-absorbing material (9.3) is filled between the pressure-resistant layer (8), the arc-shaped elastic plate (9.1), and the outer protective sleeve (10). The water-absorbing material (9.3) is a sponge water-absorbing material.

4. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The inner protective sleeve (4) is made of silicone rubber, and the outer protective sleeve (10) is made of acid and alkali resistant chloroprene rubber.

5. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The filler layer (5) is made of flame-retardant polyolefin filler strips.

6. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The flame-retardant layer (6) is made of antimony trioxide.

7. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The corrosion-resistant layer (7) is made of chlorosulfonated polyethylene rubber material.

8. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The compressive layer (8) is made of manganese steel.

9. The corrosion resistant durable control cable for rail transit according to claim 1, characterized in that: The corrosion-resistant coating (11) is made of chlorinated rubber coating.

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