Wire cable with moisture-proof function

Abstract

The utility model relates to an electric wire cable with a moisture-proof function, which comprises a plurality of cable cores, the outer surfaces of the cable cores are sleeved with insulating sleeves, the insulating sleeves are sleeved with inner waterproof sleeves, the outer side of each inner waterproof sleeve is sleeved with an outer waterproof sleeve of a circular tube structure, and the outer waterproof sleeves are sleeved with inner waterproof sleeves. The outer surface of the outer waterproof sleeve is provided with wear-resistant columns for supporting the outer waterproof sleeve to be separated from the ground, the outer waterproof sleeve can be prevented from being damaged by friction with the ground when the cable is pulled through the support of the wear-resistant columns, and a plurality of independent accommodating cavities filled with expansion water stop glue are arranged between the outer waterproof sleeve and the inner waterproof sleeve. When the outer waterproof sleeve is damaged and water enters, the expansion water stop glue at the position is combined with water and expands to block the damaged position, so that the water in the external environment is prevented from continuously entering through the damaged position and continuously corroding the inner waterproof sleeve as far as possible, and the moisture-proof performance of the cable is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, specifically relating to a wire and cable with moisture-proof function. Background Technology

[0002] With the rapid growth of my country's national economy, especially the accelerated pace of rural and urban power grid construction and renovation and the booming development of the real estate industry in various regions, my country's power industry has developed rapidly, which has promoted the development of the electrical engineering industry that supports the power industry, especially the wire and cable industry. The variety of wires and cables has shown a trend of diversification.

[0003] Existing cables typically have a tubular moisture-proof component on their outer surface to protect the internal cable core from moisture. However, due to the long length of the cable, the outer moisture-proof component will rub against the ground during the pulling and laying process, which can easily cause damage due to excessive friction, severely compromising the cable's moisture-proof performance. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed wire and cable with moisture-proof function in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A moisture-proof wire and cable includes multiple cable cores with insulating sleeves on their outer surfaces. An inner waterproof sleeve is fitted over the insulating sleeves, and an outer waterproof sleeve with a cylindrical structure is fitted over the inner waterproof sleeve. Multiple ribs are integrally formed on the inner wall of the outer waterproof sleeve and are equidistantly distributed along the length of the outer waterproof sleeve. The side of each rib away from the inner wall of the outer waterproof sleeve is fixed to the outer surface of the inner waterproof sleeve. Multiple sets of arc-shaped partitions are equidistantly arranged between the outer wall of the inner waterproof sleeve and the inner walls of the ribs along the length of the ribs. The ends of the arc-shaped partitions are fixed to the ribs. A receiving cavity is formed between two adjacent arc-shaped partitions and two adjacent ribs, and the receiving cavity is filled with expanding waterproof sealant. Multiple sets of wear-resistant columns are fixedly and annularly distributed on the outer surface of the outer waterproof sleeve, and these wear-resistant columns are equidistantly distributed along the length of the outer waterproof sleeve.

[0007] As a further optimization of this utility model, a limiting tube is provided in the inner cavity of the inner waterproof sleeve and sleeved around the periphery of the cable core. A rubber column is provided in the limiting tube, and multiple partitions are distributed in a ring around the periphery of the rubber column. The end of the partition away from the rubber column is fixed to the inner wall of the limiting tube. The cable core is disposed in a buffer cavity formed by the adjacent partitions and the inner wall of the limiting tube.

[0008] As a further optimization of this utility model, a gap is left between the inner wall of the buffer cavity and the outer surface of the insulating sleeve, and the gap is filled with filling cotton for protecting the cable core.

[0009] As a further optimization of this utility model, a through hole is formed at the center of the plurality of rubber columns along the length direction of the rubber column, and a flexible steel wire for improving the tensile strength of the cable is fixedly inserted in the through hole.

[0010] As a further optimization of this utility model, the outer surface of the limiting tube is provided with a copper strip in the form of a strip structure. The copper strip is spirally wound around the outer surface of the rubber column to form a metal shielding layer, and the end of the copper strip is bonded and fixed to the outer surface of the rubber column.

[0011] As a further optimization of this utility model, the wear-resistant column is made of flexible rubber material, and the diameter of the wear-resistant column gradually decreases from the end near the outer waterproof sleeve to the free end of the wear-resistant column.

[0012] The beneficial effects of this utility model are as follows: the outer surface of the outer waterproof sleeve is provided with wear-resistant columns that support the outer waterproof sleeve until it is detached from the ground. The wear-resistant columns can prevent the outer waterproof sleeve from being damaged by friction with the ground when the cable is pulled. At the same time, multiple independent cavities filled with expanding waterproof sealant are provided between the outer waterproof sleeve and the inner waterproof sleeve. When the outer waterproof sleeve is damaged and water enters, the expanding waterproof sealant at this location combines with the water and expands to seal the damaged area, minimizing the possibility of moisture from the external environment continuously entering through the damaged area and causing continuous corrosion to the inner waterproof sleeve, thus greatly improving the moisture resistance of the cable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall first cross-sectional structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall second cross-sectional structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the installation structure of the copper strip of this utility model.

[0017] In the diagram: 1. Cable core; 2. Insulating sleeve; 3. Limiting tube; 4. Rubber column; 5. Buffer cavity; 6. Filler cotton; 7. Through hole; 8. Flexible steel wire; 9. Copper strip; 10. Inner waterproof sleeve; 11. Outer waterproof sleeve; 12. Rib; 13. Arc-shaped partition; 14. Receiving cavity; 15. Expanding waterproof sealant; 16. Wear-resistant column. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1: As Figure 1 - Figure 4 As shown, a moisture-proof wire and cable includes multiple cable cores 1 with insulating sleeves 2 on their outer surfaces. An inner waterproof sleeve 10 is provided outside the insulating sleeves 2. A limiting tube 3 is provided in the inner cavity of the inner waterproof sleeve 10 and is sleeved around the cable cores 1. A rubber column 4 is provided in the limiting tube 3. Multiple partitions are distributed in a ring around the rubber column 4. The end of the partition away from the rubber column 4 is fixed to the inner wall of the limiting tube 3. The cable core 1 is set in a buffer cavity 5 formed between the adjacent partitions and the inner wall of the limiting tube 3. The limiting tube 3 is set to limit the cable core 1 in conjunction with the partitions set around the rubber column 4. The buffer cavity 5 is set to protect the cable core 1 set between the partitions. When the overall cable structure is under pressure, the flexible rubber partitions can deform to buffer the pressure and avoid damage to the cable core 1 due to hard compression when the cable structure is under pressure.

[0020] A gap is left between the inner wall of the buffer cavity 5 and the outer surface of the insulating sleeve 2. The gap is filled with filling cotton 6 for protecting the cable core 1. The filling cotton 6 is set to further protect the cable core 1 set in the buffer cavity 5. At the same time, the filling cotton 6 can minimize the shaking of the cable core 1 in the buffer cavity 5.

[0021] Multiple rubber columns 4 have through holes 7 opened in the center along the length of the rubber column 4. Flexible steel wires 8 are fixedly inserted in the through holes 7 to improve the tensile strength of the cable. The flexible steel wires 8 are fixedly inserted in the center of the rubber column 4 along its length so that the flexible steel wires 8 can be stressed synchronously when the construction personnel pull the overall cable structure for laying, so as to assist the laying of the cable and avoid the problem of the cable core 1 breaking due to excessive tension.

[0022] The outer surface of the rubber column 4 is provided with a copper strip 9 in a strip-like structure. The copper strip 9 is spirally wound around the outer surface of the limiting tube 3 to form a metal shielding layer. The end of the copper strip 9 is bonded and fixed to the outer surface of the rubber column 4. The copper strip 9 is spirally wound around the limiting tube 3 to form a metal shielding layer, which is used to shield external signal interference and avoid the signal transmission of the cable from being affected by external signal interference.

[0023] An outer waterproof sleeve 11 with a cylindrical structure is fitted on the outer side of the inner waterproof sleeve 10. Multiple ribs 12 are integrally formed on the inner wall of the outer waterproof sleeve 11 and are equidistantly distributed along the length of the outer waterproof sleeve 11. The side of the ribs 12 away from the inner wall of the outer waterproof sleeve 11 is fixed to the outer surface of the inner waterproof sleeve 10. The ribs 12 can not only reinforce the outer waterproof sleeve 11, but also support the inner wall of the outer waterproof sleeve 11, so that the inner wall of the outer waterproof sleeve 11 is separated from the outer surface of the inner waterproof sleeve 10.

[0024] Multiple sets of arc-shaped baffles 13 are equidistantly arranged between the outer wall of the inner waterproof sleeve 10 and the inner wall of the rib 12 along the length of the rib 12. The ends of the arc-shaped baffles 13 are fixed to the rib 12. An accommodating cavity 14 is formed between two adjacent arc-shaped baffles 13 and two adjacent ribs 12. The accommodating cavity 14 is filled with expanding waterproof sealant 15. When the outer waterproof sleeve 11 is damaged due to pulling and friction with the ground during the laying process, water from the external environment will enter the outer waterproof sleeve 11 through the damaged area. At this time, due to the presence of the inner waterproof sleeve 10, the water will not enter the center of the cable and affect the cable core 1. At the same time, after water enters the damaged area of ​​the outer waterproof sleeve 11, the expanding waterproof sealant 15 filled in the accommodating cavity 14 at that location will combine with the water and expand, sealing the damaged area of ​​the outer waterproof sleeve 11 and minimizing the possibility of moisture from the external environment continuously entering through the damaged area and causing continuous corrosion to the inner waterproof sleeve 10.

[0025] Multiple sets of wear-resistant columns 16 are fixedly distributed in a ring on the outer surface of the outer waterproof sleeve 11. The wear-resistant columns 16 are made of flexible rubber material. The multiple sets of wear-resistant columns 16 are evenly distributed along the length of the outer waterproof sleeve 11. The wear-resistant columns 16 are set to contact the ground when laying cables, supporting the outer waterproof sleeve 11 until it is detached from the ground. When the cable is pulled, the wear-resistant columns 16 are used to contact the ground and rub against each other to protect the outer waterproof sleeve 11. The diameter of the wear-resistant column 16 gradually decreases from the end near the outer waterproof sleeve 11 to the free end of the wear-resistant column 16, which can greatly improve the support performance of the wear-resistant column 16 for the outer waterproof sleeve 11.

[0026] It should be noted that this type of moisture-proof wire and cable has an inner waterproof sleeve 10 and an outer waterproof sleeve 11 sequentially fitted around the cable core 1. The outer waterproof sleeve 11 has multiple sets of equidistantly distributed wear-resistant columns 16 arranged in a ring on its outer surface. These columns can support the outer waterproof sleeve 11 until it is detached from the ground during cable laying, minimizing the risk of the outer waterproof sleeve 11 being damaged by direct friction with the ground when the cable is pulled. At the same time, the outer waterproof sleeve 11 and the inner waterproof sleeve 10 are connected by ribs 12 and arc-shaped partitions 13 to form multiple independent receiving cavities 14. The receiving cavities 14 are filled with expanding waterproof sealant 15. When the outer waterproof sleeve 11 is damaged by external forces, causing moisture to enter, the expanding waterproof sealant 15 filled in the receiving cavity 14 at the damaged location will combine with the water and expand, sealing the damaged area of ​​the outer waterproof sleeve 11. This minimizes the risk of moisture from the external environment continuously entering through the damaged area and causing continuous corrosion to the inner waterproof sleeve 10, greatly improving the moisture-proof performance of the cable.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A moisture-proof wire and cable, comprising multiple cable cores (1) with insulating sleeves (2) covering their outer surfaces, wherein an inner waterproof sleeve (10) is provided over the insulating sleeves (2), characterized in that: The inner waterproof sleeve (10) is fitted with an outer waterproof sleeve (11) in the shape of a cylindrical tube. Multiple ribs (12) are integrally formed on the inner wall of the outer waterproof sleeve (11) and are equidistantly distributed along the length of the outer waterproof sleeve (11). The side of the ribs (12) away from the inner wall of the outer waterproof sleeve (11) is fixed to the outer surface of the inner waterproof sleeve (10). The outer wall of the inner waterproof sleeve (10) and the inner wall of the ribs (12) are equidistant along the length of the ribs (12). Multiple sets of arc-shaped partitions (13) are provided, and the ends of the arc-shaped partitions (13) are fixed to the ribs (12). An accommodating cavity (14) is formed between two adjacent arc-shaped partitions (13) and two adjacent ribs (12). The accommodating cavity (14) is filled with expanding waterproof sealant (15). Multiple sets of wear-resistant columns (16) are fixedly distributed in a ring on the outer surface of the outer waterproof sleeve (11). The multiple sets of wear-resistant columns (16) are equidistantly distributed along the length direction of the outer waterproof sleeve (11).

2. The electrical wire and cable with moisture-proof function according to claim 1, characterized in that: The inner waterproof sleeve (10) is provided with a limiting tube (3) that is sleeved around the cable core (1). A rubber column (4) is provided inside the limiting tube (3). Multiple partitions are distributed in a ring around the rubber column (4). The end of the partition away from the rubber column (4) is fixed to the inner wall of the limiting tube (3). The cable core (1) is located in a buffer cavity (5) formed by the adjacent partitions and the inner wall of the limiting tube (3).

3. A moisture-proof wire and cable according to claim 2, characterized in that: A gap is provided between the inner wall of the buffer cavity (5) and the outer surface of the insulating sleeve (2), and the gap is filled with filling cotton (6) for protecting the cable core (1).

4. A moisture-proof wire and cable according to claim 2, characterized in that: A through hole (7) is provided at the center of the multiple rubber columns (4) along the length direction of the rubber column (4), and a flexible steel wire (8) for improving the tensile strength of the cable is fixedly inserted in the through hole (7).

5. A moisture-proof wire and cable according to claim 2, characterized in that: The outer surface of the limiting tube (3) is provided with a copper strip (9) in a strip-like structure. The copper strip (9) is spirally wound around the outer surface of the rubber column (4) to form a metal shielding layer. The end of the copper strip (9) is bonded and fixed to the outer surface of the rubber column (4).

6. A moisture-proof wire and cable according to claim 1, characterized in that: The wear-resistant column (16) is made of flexible rubber material, and the diameter of the wear-resistant column (16) gradually decreases from the end near the outer waterproof sleeve (11) to the free end of the wear-resistant column (16).

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