Cable sheath structure easy to tear

Abstract

The utility model relates to the technical field of cable sheaths, and discloses an easy-to-tear cable sheath structure, which comprises a shell assembly and an internal protection assembly, the shell assembly is formed by rotatably connecting an upper shell and a lower shell through a connecting shaft, a cylindrical cavity formed by closing the shell assembly accommodates the protection assembly and a cable body, and the protection assembly comprises a rubber layer. A dividing assembly is arranged in the shell assembly and comprises a pulling plate, a tearing rope and an easy-to-tear layer, the tearing rope is arranged between the easy-to-tear layer and connected with the pulling plate, the pulling plate penetrates out of the shell, and connecting assemblies composed of inserting hooks and inserting grooves are arranged at the two ends of the shell assembly. According to the utility model, the pulling plate is pulled to drive the tearing rope to tear the easy-to-tear layer, so that the sheath can be rapidly peeled off by hands, secondary damage to a cable caused by cutting of a cutter is avoided, and meanwhile, the rotary opening and closing of the shell assembly and the end part plugging structure realize repeated utilization and multi-section modular splicing of the sheath, and the cable maintenance efficiency is greatly improved.

Description

A tear-resistant cable sheath structure Technical Field

[0001] This utility model relates to the field of cable sheath technology, and in particular to a cable sheath structure that is easy to tear. Background Technology

[0002] In modern industry, construction, and communications, cables are crucial carriers of electricity or information, and are typically encased in protective sheaths. Traditional cable sheaths mostly employ a one-piece extrusion molding or integral covering structure. While this structure provides good insulation and mechanical protection initially, its inherent structural defects cause significant inconvenience once the cable is in use and inspection, repair, or troubleshooting of the internal cable structure is required.

[0003] The main technical challenge in repairing existing cable sheaths lies in the fact that workers must use specialized knives or other stripping tools to cut or forcibly peel them off. This process is not only time-consuming, labor-intensive, and complex, but also prone to causing secondary damage to the cable itself inside the sheath due to the difficulty for operators to precisely control the cutting depth and force, potentially leading to more serious accidents. Furthermore, once a traditional integral sheath is damaged or stripped, the entire long section often needs to be replaced, making it impossible to accurately repair or replace locally damaged sections, significantly increasing repair costs and time. For long-distance cable laying and maintenance, the inconvenience and high costs of this repair method are particularly pronounced.

[0004] Therefore, this utility model proposes an easily tearable cable sheath structure, aiming to solve the shortcomings of the existing technology, such as the difficulty in disassembling the cable sheath during maintenance, the easy damage to the cable, and the difficulty in achieving precise segmented maintenance. Summary of the Invention

[0005] In the existing technology, when maintaining the internal cables of cable sheaths, it is usually necessary to use knives to cut or forcibly peel them off, which makes the disassembly process cumbersome and time-consuming, and is very easy to cause secondary damage to the internal cables. At the same time, the existing integral structure is difficult to achieve precise local repair or replacement of specific damaged sections. This utility model aims to provide a tear-resistant cable sheath structure with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a tear-resistant cable sheath structure, including: an outer shell assembly, and a protective component disposed inside the outer shell assembly, wherein a cable body is disposed inside the protective component; the protective component includes a rubber layer, and the outer shell assembly includes an upper shell and a lower shell, wherein the upper shell and the lower shell are rotatably connected on one side by a connecting shaft, and the upper shell and the lower shell, when closed, form a cylindrical cavity for accommodating the protective component.

[0007] The protective component also includes a dividing component; the dividing component has a structure that differs from the prior art, including a pull plate, a tear rope, and an easily tearable layer.

[0008] Furthermore, the easily tearable layer is connected between adjacent rubber layers, the tear rope is disposed between the easily tearable layers, one end of the tear rope is fixedly connected to the pull plate, the pull plate passes through the upper shell or the lower shell and extends out of the outer side of the outer shell assembly, and the tear rope is moved by pulling the pull plate, thereby realizing the rapid separation of the rubber layers.

[0009] Preferably, a limiting plate is fixedly connected to the end of the tear cord in the splitting assembly away from the pull plate. The limiting plate abuts against the end of the easily tearable layer or the rubber layer, and is used to limit the tear cord from falling off by utilizing the physical blocking effect of the limiting plate, thereby ensuring the continuity of the tearing process.

[0010] Preferably, in the housing assembly, the upper shell is fixedly connected to an upper fixing block on the side away from the connecting shaft, and the lower shell is fixedly connected to a lower fixing block on the side away from the connecting shaft. The upper fixing block and the lower fixing block are fixedly connected by fixing screws, thereby achieving a stable locking of the housing assembly in the closed state.

[0011] Preferably, the protective component further includes an inner protective layer, which is movably connected to the interior of the rubber layer and surrounds the outer periphery of the cable body to provide close protection for the cable body.

[0012] Preferably, the connection between the inner protective layer and the rubber layer is a loose connection, so that the inner protective layer can be removed after the rubber layer is torn open, which facilitates the exposure of the internal cable body for inspection.

[0013] Preferably, the front and rear ends of the outer shell assembly are provided with connecting components, which are used to realize the multi-segment connection of the easily torn cable sheath structure to adapt to the laying requirements of cables of different lengths.

[0014] More preferably, the connecting component includes a hook and a slot, the hook being adapted to the slot to achieve axial fixation through a plug-in engagement.

[0015] More specifically, one end of the upper shell has a slot, and the other end of the upper shell is fixedly connected to a hook; one end of the lower shell has a slot, and the other end of the lower shell is fixedly connected to a hook, and the hook on the lower shell and the slot on the upper shell are located at the same end, and the slot on the lower shell and the hook on the upper shell are located at the same end. This staggered arrangement ensures the overall connection strength after the upper and lower shells are closed.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem that cable sheaths in the prior art need to be cut or forcibly peeled off with tools during maintenance by setting an easy-tear layer between the rubber layers and embedding a tear rope and a pull plate into the dividing component. It achieves the technical effect of quickly, safely and directionally opening the sheath by hand, which greatly improves the maintenance efficiency and effectively avoids secondary damage to the internal cable body.

[0018] 2. This utility model solves the problems of the inability to reuse the protective sleeve after it is disassembled and the inability to reliably seal it by rotating the upper shell and the lower shell through the connecting shaft and using the upper fixing block, the lower fixing block and the fixing screw to achieve secondary sealing and fixation. It achieves the technical effect of being able to quickly restore the protective function of the protective sleeve after maintenance and having a stable and reliable structure.

[0019] 3. This utility model solves the problem of segmented modular connection and local maintenance of long-distance cables in the prior art by setting a connecting component consisting of hooks and slots at the front and rear ends of the outer shell assembly. It achieves the technical effect that the cable sheath can be spliced ​​to any length as needed, and only the faulty section needs to be disassembled for later maintenance.

[0020] 4. This utility model solves the problem of immediate interruption of cable protection after the removal of the existing sheath structure by connecting the inner protective layer inside the rubber layer. It achieves the technical effect of making the inner protective layer loose and removeable after the rubber layer is torn, forming a layered protection and step-by-step disassembly mechanism, which further ensures the safety of the maintenance process. Attached Figure Description

[0021] Figure 1 is a three-dimensional schematic diagram of an easily tearable cable sheath structure proposed in this utility model;

[0022] Figure 2 is a schematic diagram of the rubber layer of an easily tearable cable sheath structure proposed in this utility model;

[0023] Figure 3 is a schematic diagram of the pull plate structure of an easily tearable cable sheath structure proposed in this utility model;

[0024] Figure 4 is a schematic diagram of the slot structure of an easily tearable cable sheath structure proposed in this utility model.

[0025] Legend:

[0026] 1. Outer shell assembly; 101. Upper shell; 102. Connecting shaft; 103. Upper fixing block; 104. Fixing screw; 105. Lower shell; 106. Lower fixing block; 2. Protective assembly; 201. Rubber layer; 202. Inner protective layer; 3. Connecting assembly; 301. Hook; 302. Slot; 4. Dividing assembly; 401. Pull plate; 402. Tear rope; 403. Tearable layer; 404. Limiting plate; 5. Cable body. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Embodiments:

[0028] Please refer to Figures 1 to 4. This utility model embodiment provides an easily tearable cable sheath structure, which aims to solve the problem in the prior art that the sheath is difficult to disassemble and easily damages the internal cables when inspecting or repairing cables.

[0029] As shown in Figures 1 and 2, the easily tearable cable sheath structure includes an outer shell assembly 1 and a protective assembly 2 disposed inside the outer shell assembly 1. The outer shell assembly 1 is used to provide external protection and realize segmented connection, and the protective assembly 2 is used to directly protect the cable body 5.

[0030] The outer casing assembly 1 includes an upper casing 101 and a lower casing 105. The upper casing 101 and the lower casing 105 are rotatably connected on one side by a connecting shaft 102. The connecting shaft 102 is used to realize the opening and closing operation between the upper casing 101 and the lower casing 105. After the upper casing 101 and the lower casing 105 are closed, a cylindrical cavity is formed to accommodate the protective assembly 2. An upper fixing block 103 is fixedly connected to the side of the upper casing 101 away from the connecting shaft 102, and a lower fixing block 106 is fixedly connected to the side of the lower casing 105 away from the connecting shaft 102. The upper fixing block 103 and the lower fixing block 106 are fixedly connected by fixing screws 104. The fixing screws 104 are used to tightly seal and fix the upper casing 101 and the lower casing 105 after maintenance.

[0031] The protective component 2 has a cable body 5 inside. The protective component 2 includes multiple rubber layers 201. Each rubber layer 201 has an inner protective layer 202 that is movably connected inside. The inner protective layer 202 is used to provide further protection for the cable body 5 by surrounding it.

[0032] The core technical feature is the splitting component 4, which is disposed inside the protective component 2. The splitting component 4 is used to achieve rapid tearing and opening of the rubber layer 201. The splitting component 4 includes a pull plate 401, a tear rope 402, and an easy-tear layer 403. The easy-tear layer 403 is connected between two adjacent rubber layers 201. The tear rope 402 is disposed between the easy-tear layers 403. One end of the tear rope 402 is fixedly connected to the pull plate 401. The pull plate 401 extends outward through the upper shell 101 or the lower shell 105. On the outside of the shell assembly 1, a pull plate 401 is used by the worker to pull directly to drive the tear rope 402. The end of the tear rope 402 away from the pull plate 401 is fixedly connected to a limiting plate 404. The limiting plate 404 abuts against the end of the easy-tear layer 403 or the rubber layer 201 to prevent the tear rope 402 from falling off when pulled. When the worker pulls the pull plate 401, the tear rope 402 can tear open the easy-tear layer 403, thereby opening the rubber layer 201 so that the internal cable body 5 can be inspected and repaired.

[0033] Connecting components 3 are provided at both ends of the outer casing assembly 1. The connecting components 3 are used to connect multiple sections of the easily tearable cable sheath structure. The connecting components 3 include a hook 301 and a slot 302. The hook 301 is adapted to the slot 302. One end of the upper casing 101 has a slot 302, and the other end of the upper casing 101 is fixedly connected to the hook 301. One end of the lower casing 105 has a slot 302, and the other end of the lower casing 105 is fixedly connected to the hook 301. The hook 301 on the lower casing 105 and the slot 302 on the upper casing 101 are located at the same end.

[0034] To address the aforementioned technical problems of cumbersome and easily damaging operations during cable inspection and maintenance, the core of this embodiment's technical solution lies in the fact that the easily torn cable sheath structure also includes a segmentation component 4 disposed inside the protective component 2. Furthermore, the segmentation component 4 forms a specific embedded connection with the rubber layer 201. Simultaneously, the outer shell component 1 achieves modular splicing through the connecting component 3. Please refer to Figures 2 and 3 for details. The core structure will be described in detail below:

[0035] The splitting assembly 4 includes a pull plate 401, a tear rope 402, and an easy-tear layer 403. The easy-tear layer 403 is connected between two adjacent rubber layers 201. The tear rope 402 is disposed between the easy-tear layers 403, and there are two tear ropes 402 located on both sides of the easy-tear layer 403. One end of each tear rope 402 is fixedly connected to the pull plate 401. The pull plate 401 passes through the side wall of the upper shell 101 or the lower shell 105 and extends to the outside of the outer shell assembly 1. The pull plate 401 serves as a force-bearing component for workers to pull by hand. The end of the tear rope 402 away from the pull plate 401 is fixedly connected to a limiting plate 404. The limiting plate 404 abuts against the end of the easy-tear layer 403 or the rubber layer 201. The limiting plate 404 is used to limit the displacement of the tear rope 402 during the pulling process to prevent... It detaches from the tear-resistant layer 403. At the same time, the inner protective layer 202 is movably connected inside the rubber layer 201. The inner protective layer 202 surrounds the outer periphery of the cable body 5. When the rubber layer 201 is in the closed state, the inner protective layer 202 is pressed tightly against the cable body 5. When the tear rope 402 tears the tear-resistant layer 403, causing the rubber layer 201 to loosen, the inner protective layer 202 is immediately released from restraint and can be removed. In addition, please refer to Figure 4. One end of the upper shell 101 is provided with a slot 302, and the other end of the upper shell 101 is fixedly connected with a hook 301. The positions of the hook 301 and the slot 302 on the lower shell 105 are corresponding to those of the upper shell 101. The hook 301 is inserted into the slot 302. This insertion structure allows the multi-segment cable sheath structure to be quickly connected and fixed along the axial direction.

[0036] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0037] In a preferred embodiment, to prevent the tear rope 402 from falling off when not under stress and to ensure the effectiveness of the tearing action, a limiting plate 404 is fixedly connected to the end of the tear rope 402 away from the pull plate 401. The limiting plate 404 abuts against the end face of the tearable layer 403 or the rubber layer 201. The geometric feature that the structural size of the limiting plate 404 is larger than the perforation size of the tear rope 402 is used to axially limit the tear rope 402, ensuring that the tear rope 402 always remains within the preset path of the tearable layer 403.

[0038] In another preferred embodiment, in order to ensure the structural stability and sealing of the outer shell assembly 1 after closure, an upper fixing block 103 is fixedly connected to the side wall of the upper shell 101 away from the connecting shaft 102, and a lower fixing block 106 is fixedly connected to the side wall of the lower shell 105 away from the connecting shaft 102. The upper fixing block 103 and the lower fixing block 106 are provided with corresponding threaded holes or through holes. The fixing screw 104 passes through the upper fixing block 103 and is threadedly connected to the inside of the lower fixing block 106. The opening ends of the upper shell 101 and the lower shell 105 are locked and fixed by tightening the fixing screw 104.

[0039] As a further preferred embodiment, in order to facilitate the quick removal of the inner protective structure after the rubber layer 201 is opened, the inner protective layer 202 and the rubber layer 201 are loosely connected or gap-fitted. The inner protective layer 202 is movably connected to the inner sidewall of the rubber layer 201 and surrounds the outer periphery of the cable body 5. The rubber layer 201 provides radial constraint force for the inner protective layer 202. When the rubber layer 201 is torn open, the radial constraint force disappears, and the inner protective layer 202 can be separated from the cable body 5.

[0040] As another preferred embodiment, in order to realize the modular infinite extension and docking of the multi-segment sheath structure, the specific structural layout of the connecting component 3 is as follows: a slot 302 is opened on one end face of the upper shell 101, and a hook 301 is fixedly connected to the other end face of the upper shell 101; a slot 302 is opened on one end face of the lower shell 105, and a hook 301 is fixedly connected to the other end face of the lower shell 105; and on the same docking end face, the hook 301 on the lower shell 105 and the slot 302 on the upper shell 101 are vertically aligned, and the slot 302 on the lower shell 105 and the hook 301 on the upper shell 101 are vertically aligned. The external dimensions of the hook 301 are adapted to the internal dimensions of the slot 302, so that adjacent two shell components 1 can be axially fixedly connected by inserting the hook 301 into the slot 302.

[0041] The working principle of this easily tearable cable sheath structure is as follows:

[0042] When staff need to inspect or repair the internal cable body 5, they can directly hold and pull the pull plate 401. The pull plate 401, under force, drives the tear rope 402 fixedly connected to it to move. The tear rope 402 cuts and tears open the easily tearable layer 403 connected between adjacent rubber layers 201. During this process, the limiting plate 404 at the end of the tear rope 402 is blocked by the easily tearable layer 403 or the end of the rubber layer 201 to prevent the tear rope 402 from being completely pulled off. The staff can tear open all the easily tearable layers 403 on both sides of the rubber layer 201 by pulling the two corresponding pull plates 401. The rubber layer 201 then separates from the whole and is removed. As the rubber layer 201 is removed, the inner protective layer 202, which is movable inside, loses its external radial restraint and automatically loosens. After the staff removes the inner protective layer 202, they can directly carry out inspection and repair work on the exposed cable body 5.

[0043] When the repair is completed or restoration is required, the inner protective layer 202 is reset to wrap around the cable body 5. The upper shell 101 is rotated through the connecting shaft 102 to cover the lower shell 105. At this time, the upper fixing block 103 on the side of the upper shell 101 and the lower fixing block 106 on the side of the lower shell 105 are aligned and fitted together. The fixing screw 104 is passed through the upper fixing block 103 and locked in the lower fixing block 106 to fix the upper shell 101 and the lower shell 105 closed, thus completing the encapsulation and protection of the cable body 5.

[0044] When assembling multiple sheaths, the connecting component 3 at the end of the outer shell assembly 1 is used to align the hook 301 at the end of one device with the slot 302 at the end of the other device and insert it. Since the hook 301 and slot 302 at the ends of the upper shell 101 and the lower shell 105 are set in opposite positions, the two devices are connected axially through plugging. If maintenance is required for a specific location later, the above tearing and disassembly operation can be performed on the faulty section only, without disassembling the entire circuit.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tear-resistant cable sheath structure, comprising: A housing assembly (1) is provided with an upper shell (101) and a lower shell (105). The upper shell (101) and one side of the lower shell (105) are rotatably connected by a connecting shaft (102). When the upper shell (101) and the lower shell (105) are closed, they form a cylindrical cavity for accommodating a protective component (2). The protective component (2) is disposed inside the housing assembly (1). A cable body (5) is disposed inside the protective component (2). The protective component (2) includes multiple rubber layers (201). The protective component (2) is further provided with a dividing component (4); the dividing component (4) includes a pull plate (401), a tear rope (402) and an easy-tear layer (403); the easy-tear layer (403) is connected between two adjacent rubber layers (201), the tear rope (402) is disposed between the easy-tear layers (403), one end of the tear rope (402) is fixedly connected to the pull plate (401), and the pull plate (401) extends out of the outer side of the outer shell component (1) through the upper shell (101) or the lower shell (105).

2. The easily tearable cable sheath structure according to claim 1, characterized in that, One end of the tear cord (402) away from the pull plate (401) is fixedly connected to a limiting plate (404), and the limiting plate (404) abuts against the end of the tearable layer (403) or the rubber layer (201) to restrict the tear cord (402) from falling off.

3. The easily tearable cable sheath structure according to claim 1, characterized in that, The upper shell (101) is fixedly connected to an upper fixing block (103) on the side away from the connecting shaft (102), and the lower shell (105) is fixedly connected to a lower fixing block (106) on the side away from the connecting shaft (102). The upper fixing block (103) and the lower fixing block (106) are fixedly connected by fixing screws (104).

4. The easily tearable cable sheath structure according to claim 1, characterized in that, The protective component (2) further includes an inner protective layer (202) which is movably connected to the interior of the rubber layer (201) and surrounds the outer periphery of the cable body (5).

5. The easily tearable cable sheath structure according to claim 4, characterized in that, The inner protective layer (202) is loosely connected to the rubber layer (201), and the inner protective layer (202) can be removed after the rubber layer (201) is torn open.

6. The easily tearable cable sheath structure according to claim 1, characterized in that, The front and rear ends of the outer shell assembly (1) are provided with connecting components (3), which are used to realize the multi-segment docking of the easily torn cable sheath structure.

7. The easily tearable cable sheath structure according to claim 6, characterized in that, The connecting component (3) includes a hook (301) and a slot (302), the hook (301) being adapted to the slot (302).

8. The easily tearable cable sheath structure according to claim 7, characterized in that, A slot (302) is provided at one end of the upper shell (101), and a hook (301) is fixedly connected to the other end of the upper shell (101).

9. The easily tearable cable sheath structure according to claim 8, characterized in that, A slot (302) is provided at one end of the lower shell (105), and a hook (301) is fixedly connected to the other end of the lower shell (105). The hook (301) on the lower shell (105) and the slot (302) on the upper shell (101) are located at the same end.

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