Urban rail transit communication anti-extrusion cable

Abstract

The utility model discloses a kind of urban rail transit communication anti-extrusion cable, it includes: outer sheath layer, the inner side of the outer sheath layer is provided with steel belt armoring, the inner side of the steel belt armoring is provided with inner sheath layer, the inner side of the inner sheath layer is provided with insulating layer, the inner side of the insulating layer is erected with honeycomb isolation board, the left and right sides of the outer sheath layer extend and are provided with clamping pad layer, pressure pad strip is embedded and fixed between upper and lower opposite of the clamping pad layer, vertical direction is stepped down and is pressed to protect, auxiliary bear the pressure that wire core suffers, ensure the stability of wire core structure, avoid the damage of its inner wire core caused by outer sheath layer excessive pressure flattening deformation, additionally the compression strength of its whole is improved while a plurality of wire core and filling material are separately isolated, prevent its compression deformation and mutual extrusion contact and be damaged, ensure its communication stability.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to an anti-extrusion cable for urban rail transit communication. Background Technology

[0002] In the field of urban rail transit communication, the mechanical performance requirements of cables are high to withstand being stepped on, squeezed, stretched, impacted, and dragged during construction. For cables with poor mechanical performance, the core in the middle position is easily damaged by indirect forces, which in turn affects the data transmission capability.

[0003] Conventional communication cables are mostly designed with a circular cross-section, with each functional layer nested and stacked to form a multi-circular tube structure. However, under the action of external forces perpendicular to its central axis, the circular cross-section of the tube structure is prone to flattening and deformation, which in turn causes compression damage to the core at the center, resulting in low protective strength. In addition, the gaps between the multiple cores in the cable are usually filled with cable filler material to improve its overall roundness and facilitate external sheathing. However, the filler material is relatively soft and has weak constraint on the cores. Under the action of external pressure, the cores are prone to displacement and deformation, resulting in compression damage. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-extrusion cable for urban rail transit communication, which can help bear the pressure on the core, ensure the stability of the core structure, avoid damage to the inner core caused by excessive flattening and deformation of the outer sheath layer, and improve the overall compressive strength while isolating several cores and filling materials, preventing them from being deformed by pressure and damaged by mutual squeezing and contact, thus ensuring stable communication.

[0005] To achieve the above objectives, a compression-resistant cable for urban rail transit communication is provided, comprising: an outer sheath layer; a steel strip armor is disposed on the inner side of the outer sheath layer; an inner sheath layer is disposed on the inner side of the steel strip armor; an insulation layer is disposed on the inner side of the inner sheath layer; a honeycomb isolation plate is mounted on the inner side of the insulation layer; a sleeve is fixedly arranged around the outermost end of the honeycomb isolation plate; the outer side of the sleeve is fixed to the insulation layer; each slot of the honeycomb isolation plate is filled with filler material and wire cores; and padding layers are extended on the left and right sides of the outer sheath layer, with the padding layers interlocking and fixed with a compression-resistant... Pressure pads are provided, with each pressure pad corresponding to an outer sheath layer on one side. By extending pads on both sides of the outer sheath layer and embedding pressure pads, the outer sheath layer is protected against vertical pressure from being stepped on. This helps to bear the pressure on the wire core, ensuring the stability of the wire core structure and preventing damage to the inner wire core caused by excessive pressure and deformation of the outer sheath layer. In addition, honeycomb isolation plates are added between the wire cores in conjunction with sleeves to isolate several wire cores and filling materials individually, while improving their overall compressive strength and preventing them from deforming under pressure and being damaged by mutual squeezing and contact, thus ensuring stable communication.

[0006] According to the aforementioned urban rail transit communication compression-resistant cable, a fire-resistant layer is bonded and fixed between the filler material and the adjacent sleeve for fire protection.

[0007] According to the aforementioned urban rail transit communication compression-resistant cable, the pressure-resistant pad is made of high-pressure solid rubber. This ensures its pressure resistance while facilitating rapid recovery after deformation under pressure.

[0008] According to the aforementioned urban rail transit communication compression-resistant cable, the inner sheath layer is made of rubber with strong elastic recovery capability, facilitating rapid recovery after compression deformation.

[0009] According to the aforementioned urban rail transit communication compression-resistant cable, wear-resistant pads are embedded in the middle of opposite sides of the interlayer. This improves the wear resistance of the upper and lower sides when placed horizontally.

[0010] According to the aforementioned urban rail transit communication compression-resistant cable, the pressure-resistant pad is kept horizontally flush with the upper and lower sides of the insulation layer. When subjected to vertical pressure, it can stably withstand the pressure and protect the conductor when it reaches the conductor position.

[0011] The above-mentioned solution has the following beneficial effects:

[0012] In this invention, by extending padding layers on both sides of the outer sheath layer and embedding pressure-resistant pads, the outer sheath layer is protected against vertical pressure from being stepped on. This helps to bear the pressure on the wire core, ensuring the stability of the wire core structure and preventing the outer sheath layer from being excessively compressed and deformed, which could damage the inner wire core. In addition, honeycomb isolation plates are added between the wire cores in conjunction with sleeves to isolate several wire cores and filling materials individually, while improving their overall compressive strength and preventing them from being deformed under pressure and damaged by mutual squeezing and contact, thus ensuring stable communication.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall schematic diagram of an anti-extrusion cable for urban rail transit communication according to this utility model;

[0016] Figure 2 This is a schematic diagram of the outer layer structure of the insulation layer in an anti-extrusion cable for urban rail transit communication according to this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the core wire in an anti-extrusion cable for urban rail transit communication according to this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the interlayer and wear-resistant pad in an anti-extrusion cable for urban rail transit communication according to this utility model.

[0019] Legend:

[0020] 1. Outer sheath layer; 2. Steel strip armor; 3. Inner sheath layer; 4. Insulation layer; 5. Honeycomb isolation plate; 6. Filler material; 7. Core wire; 8. Fire-resistant layer; 9. Sleeve; 10. Pad layer; 11. Pressure-resistant pad strip; 12. Wear-resistant pad layer. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model provides an anti-extrusion cable for urban rail transit communication, comprising: an outer sheath layer 1, a steel strip armor 2 disposed on the inner side of the outer sheath layer 1, an inner sheath layer 3 disposed on the inner side of the steel strip armor 2, the inner sheath layer 3 being a rubber sheath with strong elastic recovery capability, and an insulation layer 4 disposed on the inner side of the inner sheath layer 3 to provide basic isolation and protection for the conductor 7.

[0023] A honeycomb isolation plate 5 is mounted on the inner side of the insulation layer 4. A sleeve 9 is fixed around the outermost end of the honeycomb isolation plate 5. The outer side of the sleeve 9 is fixed to the insulation layer 4. Each slot of the honeycomb isolation plate 5 is filled with filler material 6 and wire core 7. A fire-resistant layer 8 is attached and fixed between the filler material 6 and the sleeve 9. This separates several wire cores 7 and filler material 6, while improving their overall compressive strength and preventing them from being deformed by pressure and damaged by mutual squeezing and contact.

[0024] The outer sheath layer 1 has padding layers 10 extending from the left and right sides. Pressure-resistant pads 11 are fitted and fixed between the upper and lower sides of the padding layers 10. The pressure-resistant pads 11 are made of high-pressure solid rubber. The opposite side of the pressure-resistant pads 11 is fitted and fixed to the outer sheath layer 1. The pressure-resistant pads 11 are kept horizontal and flush with the upper and lower sides of the insulation layer 4. Wear-resistant pads 12 are fitted and installed in the middle of the opposite sides of the padding layers 10 to provide vertical stepping and pressure protection, help bear the pressure on the core 7, ensure the stability of the core 7 structure, and avoid damage to the inner core 7 caused by excessive pressure and deformation of the outer sheath layer 1.

[0025] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0026] Working principle: In this utility model, by extending padding layers 10 on the left and right sides of the outer sheath layer 1 and cooperating with embedded pressure-resistant pads 11, the outer sheath layer 1 is protected by vertical stepping and pressing, which helps to bear the pressure on the core 7, ensures the stability of the core 7 structure, and avoids damage to the inner core 7 caused by excessive pressure and deformation of the outer sheath layer 1. In addition, honeycomb isolation plates 5 are added between the cores 7 and the sleeves 9 to isolate several cores 7 and the filling material 6 separately, while improving their overall compressive strength, preventing them from being deformed by pressure and damaged by mutual squeezing and contact, and ensuring stable communication.

[0027] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the 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] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A compression-resistant cable for urban rail transit communication, comprising: The outer sheath layer (1) is characterized in that a steel strip armor (2) is provided on the inner side of the outer sheath layer (1), an inner sheath layer (3) is provided on the inner side of the steel strip armor (2), an insulation layer (4) is provided on the inner side of the inner sheath layer (3), a honeycomb isolation plate (5) is mounted on the inner side of the insulation layer (4), a sleeve (9) is fixed around the outermost end of the honeycomb isolation plate (5), the outer side of the sleeve (9) is fixed to the insulation layer (4), each slot of the honeycomb isolation plate (5) is filled with filling material (6) and wire core (7), a padding layer (10) is provided extending on the left and right sides of the outer sheath layer (1), a pressure-resistant pad (11) is embedded and fixed between the upper and lower sides of the padding layer (10), and the opposite side of the pressure-resistant pad (11) is embedded and fixed to the outer sheath layer (1).

2. The extrusion-resistant cable for urban rail transit communication according to claim 1, characterized in that, The filling material (6) and the sleeve (9) are both fitted and fixed with a fire-resistant layer (8).

3. The extrusion-resistant cable for urban rail transit communication according to claim 1, characterized in that, The pressure-resistant pad (11) is made of high-pressure solid rubber.

4. The extrusion-resistant cable for urban rail transit communication according to claim 1, characterized in that, The inner sheath layer (3) is made of rubber with strong elastic recovery ability.

5. The extrusion-resistant cable for urban rail transit communication according to claim 1, characterized in that, The wear-resistant pads (12) are fitted into the middle of opposite sides of the padding layer (10).

6. The extrusion-resistant cable for urban rail transit communication according to claim 1, characterized in that, The pressure-resistant pad (11) is kept horizontally flush with the upper and lower sides of the insulation layer (4).

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