Composite anti-extrusion cable

Abstract

The utility model relates to the field of cables, in particular to a composite anti-extrusion cable, which comprises a second inner insulating layer fixedly sleeved on each cable core, a second sheath layer fixedly sleeved on each second inner insulating layer, a fixing sleeve fixedly sleeved on the second sheath layer, a fixing abutting block mounted on the fixing sleeve, and a second inner insulating layer fixedly sleeved on the fixing abutting block. The fixing abutting block abuts against the inner wall of each first inner insulating layer, multiple sets of anti-extrusion pads are fixedly installed on the inner wall of each first inner insulating layer, composite filler is laid in a cavity of each first inner insulating layer, and the outer wall of each first inner insulating layer is fixedly sleeved with a first outer insulating layer, a shielding layer and a first outer sheath layer in a layered mode. Compared with the prior art, the composite cable has the advantages that the problem that the cable is damaged by external force such as external traction, bending and extrusion in the actual use process is solved, and the anti-extrusion performance of the composite cable is further improved.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a composite anti-extrusion cable. Background Art

[0002] Cable is an electrical device used to transmit power, signals or data. The main function of cable is to transmit power, signals or data from one place to another, and provide mechanical protection and insulation performance to ensure the reliability and safety of transmission. Cable is widely used in various fields, including power transmission, electrical wiring of buildings, communication systems, computer networks, industrial automation, etc.

[0003] In the prior art, a Chinese patent document with publication number CN217405145U proposes a composite cable in which a buffer tube is arranged around the axis on the inner side of the cable sheath, the cable sheath is integrally connected with the buffer tube, an inner support piece is inserted into the inner side of all the buffer tubes, a support tube layer is fixedly arranged on the inner side of the inner support piece, a cable core is installed on the inner side of the support tube layer, the cable core is not easily damaged by external forces, the buffer tube can only be deformed but not moved, so it is convenient to restore its original state, and the inner support piece also has a supporting effect on the buffer tube, limits the degree of concave of the cable sheath and the buffer tube, and effectively protects the cable core. However, consistent with the traditional method, since the inner support piece is inserted into the inner side of the buffer tube, the cable may be displaced or damaged due to the extrusion force, resulting in the stability of the support tube layer and the entire cable structure being affected. Although the design of the buffer tube and the inner support piece can provide certain protection, there is still a risk of the cable core being damaged by external forces when subjected to a large extrusion force. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a composite anti-extrusion cable to solve the problem of the anti-extrusion performance of the composite cable during actual use.

[0005] Based on the above purpose, the utility model provides a composite anti-extrusion cable, including multiple cable cores, each of the cable cores is fixedly sleeved with a second inner insulating layer, each of the second inner insulating layers is fixedly sleeved with a second sheath layer, the second sheath layer is fixedly sleeved with a fixed sleeve, a fixed stopper is installed on the fixed sleeve, the fixed stopper is in contact with the inner wall of each first inner insulating layer, multiple groups of anti-extrusion pads are fixedly installed on the inner wall of each first inner insulating layer, and composite fillers are laid in the cavity of each first inner insulating layer, a first outer insulating layer, a shielding layer and a first outer sheath layer are fixedly sleeved in layers on the outer wall of each first inner insulating layer, and a partition is fixedly installed on the first outer insulating layer.

[0006] Preferably, the first inner insulating layer is a fan-shaped structure, and each of the first inner insulating layers is filled in the cavity of the first outer insulating layer respectively.

[0007] Preferably, one end of the anti-extrusion pad is fixedly mounted on the first inner insulating layer, and the other end is adapted to the outer side of the second sheath layer and contacts the outer side of the second sheath layer.

[0008] Preferably, the composite filler is paperboard made of cellulose pulp.

[0009] Preferably, the fixing sleeve and the fixing block are both made of silicone rubber material.

[0010] Preferably, the shielding layer is braided copper wire.

[0011] Preferably, the first outer sheath layer is made of thermoplastic polyurethane material.

[0012] Beneficial effects of the utility model:

[0013] 1. This composite anti-extrusion cable, by providing a first outer sheath layer, a shielding layer, and a first outer insulating layer, can not only provide mechanical protection, waterproof and moisture-proof, anti-interference, anti-radio frequency leakage and good insulation performance of the cable, but also these measures help to improve the reliability, stability and safety of the cable, and ensure the normal operation of the cable in various application environments. In addition, by providing a fixed sleeve, the cable core can be effectively limited, so that multiple cable cores are evenly distributed in the first inner insulating layer, and the spacing is guaranteed during use, so that multiple cable cores will not be unevenly spaced to affect the transmission of the cable. In addition, a fixed block is also provided on the fixed sleeve, which not only makes the cable core more stable but also resists external pressure. In addition, by providing a second sheath layer, the sheath layer can provide mechanical protection for the internal structure of the cable to prevent external physical damage and wear, which includes resisting external forces such as tension, bending, and extrusion, protecting the internal conductor and insulation layer of the cable from damage, and by providing a second inner insulating layer, the insulation layer not only provides isolation of the current and distribution of the electric field, but also prevents current leakage and electric field concentration, ensuring the insulation performance of the cable, and a good insulation layer can effectively prevent the leakage of internal signals and the loss of electric energy in the cable.

[0014] 2. This type of composite anti-extrusion cable can effectively resist external extrusion force and prevent deformation and compression of the first inner insulating layer by providing an anti-extrusion pad, which helps to maintain the stability of the size and shape of the cable and ensure that the performance and appearance of the cable are not damaged. In addition, the anti-extrusion pad also withstands a certain amount of force and pressure to ensure the stability and integrity of the cable core. By setting the first inner insulating layer to a fan-shaped structure, the fan-shaped structure can provide more insulating materials, and enhancing the insulation performance of the cable can provide additional mechanical protection for the cable core. It can resist the extrusion, stretching and bending of the cable core by external physical forces, and improve the durability and reliability of the cable. In addition, a partition is also provided on the first outer insulating layer. The cavity formed by the partition is adapted to each fan-shaped first inner insulating layer, which not only provides more insulating materials and enhances the insulation performance and pressure resistance of the cable, but also the fan-shaped structure is easier to fill with materials and is more stable during assembly and fixing, thereby improving manufacturing efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the utility model;

[0020] Figure 5 For this utility model Figure 4 A is an enlarged diagram of the structure.

[0021] The markings in the figure are:

[0022] 1. First outer sheath layer; 2. Shielding layer; 3. First outer insulation layer; 4. First inner insulation layer; 5. Fixing sleeve; 6. Second sheath layer; 7. Second inner insulation layer; 8. Cable core; 9. Anti-extrusion pad; 10. Composite filler. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 5As shown, the composite anti-extrusion cable includes multiple cable cores 8, characterized in that: each cable core 8 is fixedly sleeved with a second inner insulating layer 7, each second inner insulating layer 7 is fixedly sleeved with a second sheath layer 6, the second sheath layer 6 is fixedly sleeved with a fixed sleeve 5, and a fixed stopper is installed on the fixed sleeve 5, the fixed stopper is in contact with the inner wall of each first inner insulating layer 4, and multiple groups of anti-extrusion pads 9 are fixedly installed on the inner wall of each first inner insulating layer 4, and a composite filler 10 is laid in the cavity of each first inner insulating layer 4, and the outer wall of each first inner insulating layer 4 is fixedly sleeved with a first outer insulating layer 3, a shielding layer 2 and a first outer sheath layer 1 in layers, and a partition is fixedly installed on the first outer insulating layer 3. By arranging the first outer sheath layer 1, the shielding layer 2 and the first outer insulating layer 3, not only can the cable be provided with mechanical protection, waterproof and moisture-proof, anti-interference, anti-radio frequency leakage and good insulation performance, but also these measures help to improve the reliability of the cable. , stability and safety, ensuring the normal operation of the cable in various application environments. In addition, by setting the fixed sleeve 5, the cable core 8 can be effectively limited, so that the multiple cable cores 8 are evenly distributed in the first inner insulating layer 4, and the spacing is guaranteed during use, so that the multiple cable cores 8 will not be unevenly spaced and affect the transmission of the cable. In addition, a fixed block is also provided on the fixed sleeve 5, which not only makes the cable core 8 more stable but also resists external pressure. In addition, by setting the second sheath layer 6, the sheath layer can provide mechanical protection for the internal structure of the cable to prevent external physical damage and wear, including resisting external forces such as tension, bending, and extrusion, protecting the internal conductor and insulation layer of the cable from damage. By providing a second inner insulating layer 7, the insulation layer not only provides isolation for current and distribution of the electric field, but also prevents current leakage and electric field concentration, thereby ensuring the insulation performance of the cable, and a good insulation layer can effectively prevent the leakage of internal signals and the loss of electric energy in the cable.

[0026] like Figure 1 , Figure 3 As shown, one end of the anti-extrusion pad 9 is fixedly mounted on the first inner insulating layer 4, and the other end is adapted to the outer side of the second sheath layer 6 and contacts the outer side of the second sheath layer 6. By setting the anti-extrusion pad 9, the external extrusion force can be effectively resisted to prevent the deformation and compression of the first inner insulating layer 4, which helps to maintain the size and shape of the cable stable and ensure that the performance and appearance of the cable are not damaged. In addition, the anti-extrusion pad 9 also withstands a certain force and pressure to ensure the stability and integrity of the cable core 8.

[0027] like Figure 2 , Figure 4 , Figure 5As shown, the first inner insulating layer 4 is a fan-shaped structure, and each first inner insulating layer 4 is filled in the cavity of the first outer insulating layer 3 respectively. By setting the first inner insulating layer 4 as a fan-shaped structure, the fan-shaped structure can provide more insulating materials, and enhancing the insulation performance of the cable can provide additional mechanical protection for the cable core 8. It can resist the extrusion, stretching and bending of the cable core 8 by external physical forces, and improve the durability and reliability of the cable. In addition, a partition is also provided on the first outer insulating layer 3. When it is partitioned, the cavity formed is adapted to each fan-shaped first inner insulating layer 4, which not only provides more insulating materials and enhances the insulation performance and compressive resistance of the cable, but also the fan-shaped structure is easier to fill with materials and is more stable during assembly and fixing, thereby improving manufacturing efficiency and product quality.

[0028] like Figure 1 , Figure 3 As shown, the fixing sleeve 5 and the fixing block are both made of silicone rubber material, the shielding layer 2 is braided copper wire, the composite filler 10 is a paperboard made of cellulose pulp, and the first outer sheath layer 1 is made of thermoplastic polyurethane material. By setting the fixing sleeve 5 to be silicone rubber material, the silicone rubber material has good anti-extrusion performance and can maintain the stability of its shape and structure under external extrusion. In addition, the shielding layer 2 is braided copper wire. The copper wire braided shielding has certain flexibility and bendability, which not only makes the cable more convenient during installation and wiring, but also can resist external physical damage and wear, such as tension, bending, extrusion and other external forces. The copper wire braided shielding can protect the internal conductor and insulation layer of the cable from damage and extend the service life of the cable. In addition, the composite filler 10 uses a paperboard made of cellulose pulp because it has certain softness and pressure resistance. It is used to fill the internal gap of the cable and can increase the overall mechanical strength and stability of the cable. When the first outer sheath layer 1 is made of thermoplastic polyurethane material, the thermoplastic polyurethane material not only has good elasticity and pressure resistance, can effectively resist extrusion and pressure, but also has the advantages of chemical corrosion resistance and wear resistance.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0030] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A composite anti-extrusion cable, comprising a plurality of cable cores (8), characterized in that: include: A second inner insulating layer (7) is fixedly sleeved on each of the cable cores (8), a second sheath layer (6) is fixedly sleeved on each of the second inner insulating layers (7), a fixed sleeve (5) is fixedly sleeved on the second sheath layer (6), a fixed stopper is installed on the fixed sleeve (5), and the fixed stopper abuts against the inner wall of each first inner insulating layer (4), a plurality of groups of anti-extrusion pads (9) are fixedly installed on the inner wall of each first inner insulating layer (4), and a composite filler (10) is laid in the cavity of each first inner insulating layer (4), a first outer insulating layer (3), a shielding layer (2) and a first outer sheath layer (1) are fixedly sleeved in layers on the outer wall of each first inner insulating layer (4), and a partition is fixedly installed on the first outer insulating layer (3).

2. The composite anti-extrusion cable according to claim 1, characterized in that: The first inner insulating layer (4) is a fan-shaped structure, and each of the first inner insulating layers (4) is respectively filled in the cavity of the first outer insulating layer (3).

3. The composite anti-extrusion cable according to claim 1, characterized in that: One end of the anti-extrusion pad (9) is fixedly mounted on the first inner insulating layer (4), and the other end is adapted to the outer side of the second sheath layer (6) and contacts the outer side of the second sheath layer (6).

4. The composite anti-extrusion cable according to claim 1, characterized in that: The fixing sleeve (5) and the fixing block are both made of silicone rubber material.

5. The composite anti-extrusion cable according to claim 1, characterized in that: The shielding layer (2) is braided copper wire.

6. The composite anti-extrusion cable according to claim 1, characterized in that: The composite filler (10) is paperboard made of cellulose pulp.

7. The composite anti-extrusion cable according to claim 1, characterized in that: The first outer sheath layer (1) is made of thermoplastic polyurethane material.

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