Cable capable of preventing sheath from being damaged

Abstract

The utility model relates to the technical field of cables, in particular to a sheath-damage-preventing cable, which comprises a conductor, an insulating layer is wrapped outside the conductor, a sealing layer and a cable sheath layer are respectively sleeved outside the insulating layer, and annular stepped protective layers are arranged on the outer side of the cable sheath layer. A connecting layer is arranged at the position, with the largest diameter, of the stepped protection layer, a wear-resistant ring layer is wound around the periphery of the connecting layer, the annular stepped protection layer is arranged on the outer side of the cable sheath layer, a connecting layer is arranged at the position, with the largest diameter, of the stepped protection layer, and a wear-resistant ring layer is wound around the periphery of the connecting layer. The wear-resistant ring layer is arranged to be in a detachable connection mode, when the wear degree is large, the bolt is detached, the wear-resistant ring layer is taken down, and a new wear-resistant ring layer is replaced, so that the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cable resistant to outer sheath damage. Background Technology

[0002] Cables are typically electrical transmission components composed of several or groups of conductors. During cable laying and use, the outer sheath of the cable is often damaged during construction on site or when stretched on the ground. Excessive damage will affect the performance. Existing cable wear-resistant layers, once damaged, will further directly affect the damage to the outer sheath, resulting in poor performance. Therefore, overcoming the above-mentioned technical problems and defects has become a key issue that needs to be addressed. Utility Model Content

[0003] The purpose of this invention is to overcome the defects described in the background art, thereby realizing a cable with good performance against outer sheath damage.

[0004] To achieve the above-mentioned objectives, the technical solution of this utility model is: a cable resistant to outer sheath damage, comprising a conductor, an insulation layer wrapped around the conductor, a sealing layer and a cable sheath layer respectively sleeved on the outside of the insulation layer, annular stepped protective layers arranged on the outside of the cable sheath layer, a connecting layer disposed at the position with the largest diameter of the stepped protective layer, and a wear-resistant ring layer wrapped around the periphery of the connecting layer.

[0005] Furthermore, the stepped protective layer is made of a soft material, which makes it less likely to damage the cable body. The connecting layer is made of a rigid material, which facilitates connection and fastening with the wear-resistant ring layer.

[0006] Furthermore, an annular limiting groove is provided in the middle of the connecting layer, and a limiting protrusion is provided in the inner circumference of the wear-resistant ring layer. The limiting protrusion is stuck in the limiting groove, so the wear-resistant ring layer will not slide, and the connection is more secure.

[0007] Furthermore, the wear-resistant ring layer connection port and the corresponding outer periphery of the connection layer are provided with screw holes, and the wear-resistant ring layer and the connection layer are fixed together by bolts passing through them. The wear-resistant ring layer is located on the outermost side of the cable, and it has more external contact and greater wear. When the wear-resistant ring needs to be replaced due to wear, the bolts are removed and the wear-resistant ring layer is removed and replaced with a new wear-resistant ring layer.

[0008] Furthermore, an installation groove is provided at the wear-resistant ring layer at the head of the bolt. After the bolt is fixed and tightened, the end face of the bolt is flush with the wear-resistant ring layer, preventing the bolt from being exposed and damaging surrounding objects.

[0009] The beneficial effects of this utility model of a cable resistant to outer sheath damage are as follows:

[0010] 1. The cable of this utility model is designed to prevent damage to the outer sheath. A ring-shaped stepped protective layer is arranged on the outer side of the cable sheath. A connecting layer is set at the position with the largest diameter of the stepped protective layer. A wear-resistant ring layer is wrapped around the outside of the connecting layer. The wear-resistant ring layer is designed to be detachable. When the wear is relatively large, the bolts can be removed and the wear-resistant ring layer can be removed and replaced with a new wear-resistant ring layer. The cable has good performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the end face structure of the cable with anti-outer sheath damage according to this utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the anti-outer sheath cable of this utility model;

[0013] Figure 3 This is a side view of the cable designed to prevent damage to the outer sheath.

[0014] In the diagram: 1-Conductor, 2-Insulation layer, 3-Sealing layer, 4-Cable outer sheath, 5-Stepped protective layer, 6-Connecting layer, 61-Limiting groove, 7-Wear-resistant ring layer, 71-Limiting protrusion ring, 72-Mounting groove, 8-Bolt, 9-Screw hole. Detailed Implementation

[0015] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the cable designed to prevent damage to its outer sheath.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0017] See Figures 1-3 The anti-damage cable of this embodiment achieves good technical performance. The structure of this embodiment includes a conductor 1, an insulation layer 2 wrapped around the conductor 1, a sealing layer 3 and a cable sheath layer 4 respectively sleeved on the outside of the insulation layer 2, and an annular stepped protective layer 5 arranged on the outside of the cable sheath layer 4. The stepped protective layer 5 is made of a soft material, which makes it less likely to damage the cable body. The connecting layer 6 is made of a rigid material, which facilitates connection and fastening with the wear-resistant ring layer 7.

[0018] See Figure 2 and Figure 3In this embodiment, a connecting layer 6 is provided at the position with the largest diameter of the stepped protective layer 5, and a wear-resistant ring layer 7 is wrapped around the periphery of the connecting layer 6. An annular limiting groove 61 is provided in the middle of the connecting layer 6, and a limiting protrusion 71 is provided in the inner circumference of the wear-resistant ring layer 7. The limiting protrusion 71 is locked in the limiting groove 61, so the wear-resistant ring layer 7 will not slide, and the connection is more secure.

[0019] See Figure 2 In this embodiment, the wear-resistant ring layer 7 has screw holes 9 at its connection port and the corresponding outer periphery of the connecting layer 6. Bolts 8 pass through the wear-resistant ring layer 7 and the connecting layer 6 to fix them together. The wear-resistant ring layer 7 is located on the outermost side of the cable, resulting in more external contact and greater wear. When the wear-resistant ring layer needs replacement due to wear, the bolts 8 are removed, and the wear-resistant ring layer 7 is removed and replaced with a new one. An installation groove 72 is provided at the head of the bolt 8 on the wear-resistant ring layer 7. After the bolt 8 is tightened, the end face of the bolt 8 is flush with the wear-resistant ring layer 7, preventing the bolt 8 from protruding and damaging surrounding objects.

[0020] The operating principle and method of this embodiment are as follows: In the structure of this embodiment, a connecting layer 6 is provided at the position with the largest diameter of the stepped protective layer 5, and a wear-resistant ring layer 7 is wrapped around the periphery of the connecting layer 6. An annular limiting groove 61 is provided in the middle of the connecting layer 6, and a limiting protrusion 71 is provided in the inner circumference of the wear-resistant ring layer 7. The limiting protrusion 71 is stuck in the limiting groove 61, and the wear-resistant ring layer 7 will not slip. The bolt 8 passes through the wear-resistant ring layer 7 and the connecting layer 6 to fix them together. The wear-resistant ring layer 7 is located on the outermost side of the cable, and its external contact is greater, resulting in greater wear. When the wear-resistant ring needs to be replaced due to wear, the bolt 8 is removed, the wear-resistant ring layer 7 is removed, and a new wear-resistant ring layer 7 is replaced.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in the application documents of this invention does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0022] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A cable resistant to outer sheath damage, comprising a conductor, an insulation layer covering the conductor, and a sealing layer and a cable outer sheath layer respectively sleeved outside the insulation layer, characterized in that: The outer sheath of the cable is provided with annular stepped protective layers, and a connecting layer is provided at the position with the largest diameter of the stepped protective layers. A wear-resistant ring layer is wrapped around the periphery of the connecting layer.

2. The cable resistant to outer sheath damage according to claim 1, characterized in that: The stepped protective layer is made of a soft material, and the connecting layer is made of a rigid material.

3. The cable resistant to outer sheath damage according to claim 2, characterized in that: The connecting layer has an annular limiting groove in the middle, and the wear-resistant ring layer has a limiting protrusion in the inner circumference, which is engaged in the limiting groove.

4. The cable resistant to outer sheath damage according to claim 1, characterized in that: The wear-resistant ring layer has screw holes at the connection port and the corresponding outer periphery of the connection layer, and the two are fixed together by bolts passing through the wear-resistant ring layer and the connection layer.

5. The cable resistant to outer sheath damage according to claim 4, characterized in that: The bolt has an installation groove at the wear-resistant ring layer at the head position. After the bolt is fixed and tightened, the end face of the bolt is flush with the wear-resistant ring layer.

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