Coaxial cable with protective structure

Abstract

The utility model relates to cable technical field, concretely is a kind of coaxial cable with protective structure, including center conductor, the outside of center conductor is equipped with fixed insulating layer, the outside of insulating layer is equipped with fixed shielding layer, the outside of shielding layer is equipped with fixed protective layer, the outside of protective layer is equipped with fixed protective structure, the inside of protective structure is equipped with cavity, cavity is to extruded line body's pressure buffer, the inside of cavity is equipped with tensile structure, and the outside of protective structure is equipped with attached wall structure, attached wall structure is smeared with glue, and coaxial cable is hung in wall surface;Beneficial effect is: through the innovative design protective structure and attached wall structure, the wear resistance, tensile, shaping and fixing problem of traditional coaxial cable are systematically solved;Through the synergistic innovation of wear-resistant rubber sleeve, buffer groove, tensile rib and standardized attached wall structure, the high reliability operation of coaxial cable under complex environment is realized, and installation and maintenance cost are reduced simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of cables, specifically a coaxial cable with a protective structure. Background Technology

[0002] Coaxial cables, as a core medium for signal transmission, are widely used in television signal transmission, network communication, monitoring systems, and high-frequency signal transmission. Their traditional structure typically consists of a center conductor, insulation layer, shielding layer, and outer sheath. While this meets basic signal transmission requirements, its adaptability and reliability in complex environments still have the following shortcomings: The outer sheath of traditional coaxial cables is mostly made of PVC or polyethylene, which has poor abrasion resistance. During cabling, the cable is easily rubbed against walls, floors, or equipment edges, leading to damage to the outer sheath, which in turn causes corrosion of the shielding layer or signal leakage. This problem is particularly prominent in outdoor or industrial settings. Traditional cables lack tensile reinforcement structures. When pulled or bent, the internal conductor is prone to breakage due to excessive stretching, or the cabling path may deviate due to springback force. Furthermore, in scenarios requiring a fixed shape (such as cabling around wall corners), traditional cables struggle to maintain the bending angle, necessitating the use of additional clamps and increasing installation costs. Traditional cables are fixed to the wall with cable ties or ordinary tape, which has the following drawbacks: small contact area, insufficient adhesive strength, and easy to fall off; in pressure or compression scenarios (such as door frames, equipment gaps), the rigid structure of traditional cables is prone to deformation of internal conductors or damage to insulation layers, causing signal interruption or short circuit faults.

[0003] While some improved coaxial cables enhance abrasion resistance by thickening the outer sheath or adding a metal braided layer, they do not systematically address the issues of tensile strength, shaping, and fixation. Solutions using independent tensile wires or spring structures suffer from drawbacks such as high cost, complex manufacturing processes, and excessive size. Therefore, there is an urgent need for an integrated, low-cost protective structure to comprehensively improve the environmental adaptability and ease of installation of coaxial cables. Utility Model Content

[0004] The purpose of this invention is to provide a coaxial cable with a protective structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coaxial cable with a protective structure, comprising a central conductor, an insulating layer fixedly sleeved on the outside of the central conductor, a shielding layer fixedly sleeved on the outside of the insulating layer, a protective layer fixedly sleeved on the outside of the shielding layer, a protective structure fixedly sleeved on the outside of the protective layer, a cavity provided inside the protective structure, the cavity buffering the pressure of the extruded cable, a tensile structure provided inside the cavity, and a wall-mounting structure provided on the outside of the protective structure. After applying glue to the wall-mounting structure, the coaxial cable is suspended on the wall.

[0006] Preferably, the protective structure includes a wear-resistant rubber sleeve, which is fixed on the protective layer. The structure has multiple cavities, which are distributed circumferentially around the wear-resistant rubber sleeve as the central axis.

[0007] Preferably, the cavity includes a buffer groove, and two tensile structures are installed inside the buffer groove, the length of which is equal to the depth of the buffer groove.

[0008] Preferably, the tensile structure includes tensile ribs, which are fixed to the surface of the buffer groove.

[0009] Preferably, the wall-mounted structure is provided in multiple sets, and the multiple sets of wall-mounted structures are arranged at equal intervals and of equal size along the outer ring surface of the wear-resistant rubber sleeve.

[0010] Preferably, the wall-mounted structure includes a plane, which is formed on the outer wall of the wear-resistant rubber sleeve. The surface of the plane has a rubber-clamping groove, which is convex in shape. There are two rubber-clamping grooves, which are respectively distributed on the two edges of the plane, and the long side length of the rubber-clamping groove is equal to that of the plane.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The coaxial cable with protective structure proposed in this utility model systematically solves the problems of wear resistance, tensile strength, shaping and fixing of traditional coaxial cables through innovative design of protective structure and wall attachment structure; through the synergistic innovation of wear-resistant rubber sleeve, buffer groove, tensile reinforcement and standardized wall attachment structure, the coaxial cable achieves high reliability operation in complex environment, while reducing installation and maintenance costs. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the wear-resistant rubber sleeve structure of this utility model.

[0012] In the diagram: 1. Center conductor; 2. Insulation layer; 3. Shielding layer; 4. Protective layer; 5. Wear-resistant rubber sleeve; 6. Buffer groove; 7. Tensile rib; 8. Plane; 9. Adhesive groove. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] Please see Figures 1-3 This utility model provides a technical solution: a coaxial cable with a protective structure, including a central conductor 1, an insulating layer 2 fixedly sleeved on the outside of the central conductor 1, a shielding layer 3 fixedly sleeved on the outside of the insulating layer 2, a protective layer 4 fixedly sleeved on the outside of the shielding layer 3, and a protective structure fixedly sleeved on the outside of the protective layer 4. The protective structure has a cavity inside, which buffers the pressure of the extruded cable. The protective structure includes a wear-resistant rubber sleeve 5, which can be made of a blend of EPDM rubber and nitrile rubber. This material combines the excellent aging resistance and ozone resistance of EPDM rubber with the excellent oil resistance and wear resistance of nitrile rubber, making it suitable for more extreme environments. The wear-resistant rubber sleeve 5 is fixedly sleeved on the protective layer 4. Multiple cavities are provided, and the multiple cavities are evenly distributed circumferentially around the wear-resistant rubber sleeve 5 as the central axis. The cavity includes a buffer groove 6, preferably an arc-shaped buffer groove 6. Two tensile structures are installed inside the buffer groove 6, and the length of the tensile structure is equal to the depth of the buffer groove 6. The reason for setting the wear-resistant rubber sleeve 5 is to provide wear-resistant protection for the coaxial cable, so as to prevent the outer wall of the coaxial cable from being damaged by scratching with surrounding objects. After setting the buffer groove 6, multiple buffer grooves 6 are distributed around the wear-resistant rubber sleeve 5 to realize a buffer structure around the outside of the coaxial cable.

[0015] The cavity contains a tensile structure, including tensile ribs 7, which are fixed to the surface of the buffer groove 6. Two tensile ribs 7 are located at both ends of the buffer groove 6 within each buffer groove, facilitating their fixation. The addition of tensile ribs 7 enhances the tensile strength of the coaxial cable. If metal wire is used for the tensile ribs 7, they also serve a shaping function. When the cable bends around a wall, the deformation of the tensile ribs 7 forms a shaping skeleton, preventing the coaxial cable from springing back to its original shape, allowing it to bend into the desired form. The metal wire includes, but is not limited to, galvanized steel wire, with a galvanized layer thickness controlled between 8μm and 12μm to effectively prevent rusting and ensure the long-term tensile performance of the tensile ribs.

[0016] The outer side of the protection structure is provided with a wall-attached structure. After applying glue to the wall-attached structure, the coaxial cable is hung on the wall. A plurality of groups of the wall-attached structures are arranged, and the plurality of groups of wall-attached structures are distributed at equal intervals and with equal size along the outer annular surface of the wear-resistant rubber sleeve 5. The wall-attached structure comprises a flat surface 8, the flat surface 8 is arranged on the outer wall of the wear-resistant rubber sleeve 5, a glue clamping groove 9 is formed on the surface of the flat surface 8, the glue clamping groove 9 is a "convex"-shaped groove, two glue clamping grooves 9 are arranged on each flat surface 8, the two glue clamping grooves 9 are respectively distributed at two edges of the flat surface 8, and the length of the glue clamping groove 9 is equal to the length of the long side of the flat surface 8. The arrangement of the flat surface 8 is to increase the contact area between the coaxial cable and the wall through the flat surface 8 when the coaxial cable is laid attached to the wall. After glue is applied to the surface of the flat surface 8, the flat surface 8 is pressed and attached to the wall. After the glue is cured, the glue forms a "convex"-shaped suspension structure between the coaxial cable and the wall, so as to prevent the coaxial cable from falling off the wall. To further reinforce the installation of the coaxial cable on the wall, a cable clip can be selected along the coaxial cable for laying.

[0017] Method for using coaxial cable with protection structure: Determine the cable routing according to actual needs, and avoid sharp objects, high-temperature areas and strong electromagnetic interference sources. If it is necessary to go around a wall corner, the bending angle is planned in advance by utilizing the shaping characteristic of the tensile rib 7. Bend the cable slowly to the target angle, the metal tensile rib 7 will deform and maintain the bent shape to prevent the cable from springing back. The bending radius shall be greater than the minimum bending radius of the cable (usually 5 times the cable diameter) to prevent damage to the internal structure. Avoid repeatedly bending the same position to prevent the tensile rib 7 from fatigue fracture. In scenarios with large tensile force (such as long-distance traction), ensure that the buffer groove 6 faces the force direction, and use its buffer structure to disperse the tensile force to prevent the protective layer 4 or the shielding layer 3 from breaking. When fixing on the wall, wipe the wall fixing area and the flat surface 8 with an alcohol pad to remove dust and oil stains, so as to ensure the glue bonding effect. Select suitable glue according to the wall material (concrete, wood, metal, etc.), and preferentially select the type with strong weather resistance and flexibility after curing. Apply the glue evenly on the surface of the flat surface 8, focusing on filling the glue clamping groove 9 ("convex"-shaped groove). The amount of glue should be moderate to avoid overflow or incomplete coverage. Align the flat surface 8 with the wall, and press slowly from one end of the cable to the other end to ensure that the glue fully fills the gap between the glue clamping groove 9 and the wall. Maintain the pressing pressure for 2-3 minutes, and release after the glue is initially cured. If the cable needs to bear long-term load or is in a vibration environment, cable clips can be installed along the laying path: fix the cable clips on the wall with screws, and clamp the cable into the cable clip grooves. The spacing between the cable clips is recommended not to exceed 50cm, and the installation at the corners shall be densified. Allow to stand for curing according to the requirements of the glue instruction manual (usually more than 24 hours), and avoid touching or moving the cable during this period.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coaxial cable with a protective structure, comprising a central conductor (1), an insulating layer (2) fixedly sleeved on the outside of the central conductor (1), a shielding layer (3) fixedly sleeved on the outside of the insulating layer (2), and a protective layer (4) fixedly sleeved on the outside of the shielding layer (3), characterized in that: A protective structure is sleeved and fixed on the outer side of the protective layer (4), a cavity is arranged inside the protective structure, the cavity buffers the pressure squeezing the wire body, a tensile structure is arranged inside the cavity, and a wall-attached structure is arranged on the outer side of the protective structure. After applying glue to the wall-attached structure, the coaxial cable is suspended on the wall surface.

2. The coaxial cable with a protective structure according to claim 1, characterized in that: The protective structure includes a wear-resistant rubber sleeve (5), the wear-resistant rubber sleeve (5) is sleeved and fixed on the protective layer (4), a plurality of cavities are provided, and the plurality of cavities are circumferentially distributed with the wear-resistant rubber sleeve (5) as the central axis.

3. A coaxial cable with a protective structure according to claim 2, characterized in that: The cavity comprises a buffer groove (6), two tensile structures are mounted inside the buffer groove (6), and the length of each tensile structure is equal to the depth of the buffer groove (6).

4. A coaxial cable with a protective structure according to claim 3, characterized in that: The tensile structure comprises a tensile rib (7), and the tensile rib (7) is fixed on the surface of the buffer groove (6).

5. A coaxial cable with a protective structure according to claim 2, characterized in that: Multiple sets of the wall-attached structures are provided, and the multiple sets of wall-attached structures are arranged and distributed at equal intervals and equal sizes along the outer annular surface of the wear-resistant rubber sleeve (5).

6. A coaxial cable with a protective structure according to claim 5, characterized in that: The wall-attached structure comprises a flat surface (8), the flat surface (8) is arranged on the outer wall of the wear-resistant rubber sleeve (5), the surface of the flat surface (8) is provided with glue clamping grooves (9), the glue clamping grooves (9) are in a "convex" shape, two glue clamping grooves (9) are provided, the two glue clamping grooves (9) are respectively distributed at two edges of the flat surface (8), and the length of the glue clamping grooves (9) is equal to the length of the long side of the flat surface (8).

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