Leaky coaxial cable with built-in fault detection wires

Abstract

This utility model discloses a leaky coaxial cable with a built-in fault detection line, including a coaxial cable body and a top connector at its end; a side threaded layer is provided on the first connecting sheath layer, and a snap-fit ​​bevel post is provided in the plug-in connecting groove; the outer layer of the coaxial cable is plugged in through the plug-fit snap-fit ​​layers on the first and second connecting sheath layers, and after snap-fit, rotation is limited by a rotating adjusting ring. When disassembly is required, the rotating adjusting ring is rotated to disengage from the compression limit, and then the plug-fit snap-fit ​​layer is pressed to move towards the position of the rotating adjusting ring to compress the snap-fit ​​bevel post inward. Then, it is rotated to a position where the snap-fit ​​bevel post is not snapped inward for disassembly. With the improvement of this utility model, a certain length of the outer sheath layer can be spliced ​​together, which can effectively replace a damaged part without replacing the whole cable, thereby effectively saving resources and improving the practicality of the leaky coaxial cable with a built-in fault detection line.

Description

Technical Field

[0001] This utility model belongs to the technical field of communication engineering, specifically relating to a leaky coaxial cable with a built-in fault detection line. Background Technology

[0002] In certain specialized communication scenarios, such as tunnels, subways, and mines, traditional communication methods struggle to achieve adequate signal coverage. Leaky coaxial cables, due to their ability to evenly radiate and receive electromagnetic energy, effectively solve these communication challenges, leading to their widespread application and development.

[0003] With the continuous advancement of materials science, manufacturing processes, and testing technologies, the performance of leaky coaxial cables has been significantly improved, such as lower transmission loss, higher radiation efficiency, and better anti-interference capabilities. This has also provided a technological foundation for the realization of built-in fault detection lines.

[0004] However, the outer sheath of a leaky coaxial cable with a built-in fault detection line can only be replaced as a whole when it is damaged, which is very wasteful and not conducive to the utilization of resources.

[0005] This utility model addresses the aforementioned problems by providing a leaky coaxial cable with a built-in fault detection line that allows for convenient partial replacement of the outer sheath. Utility Model Content

[0006] The purpose of this invention is to provide a leaky coaxial cable with a built-in fault detection line, so as to solve the problem in the background art that the outer sheath of the leaky coaxial cable with a built-in fault detection line can only be replaced as a whole when it is damaged, which is easy to waste and not conducive to the utilization of resources.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leaky coaxial cable with a built-in fault detection line, comprising a coaxial cable body and a top connector disposed at the end of the coaxial cable body;

[0008] The coaxial cable body is provided with a first connecting sheath layer, which has a side threaded layer. A rotating adjustment ring is provided on the outer side of the side threaded layer. A plug-in connection groove is provided on the side of the rotating adjustment ring. A snap-fit ​​slope post is provided in the plug-in connection groove. An internal telescopic spring is provided at the bottom of the snap-fit ​​slope post. A second connecting sheath layer is provided on the side of the first connecting sheath layer. A plug-in snap-fit ​​layer is provided on the side of the second connecting sheath layer. The plug-in snap-fit ​​layer has a through hole. The outer layer of the coaxial cable body is plugged in through the plug-in snap-fit ​​layers on the first and second connecting sheath layers, and then snapped in by the snap-fit ​​slope post. After snapping, the rotating adjustment ring limits the rotation. When disassembly is required, rotate the rotating adjustment ring to disengage from the compression limit, then press the plug-in snap-fit ​​layer to move towards the rotating adjustment ring to compress the snap-fit ​​slope post inward, and then rotate to a position other than the snap-fit ​​slope post to pull it out for disassembly.

[0009] Preferably, a rotating connecting ring is provided on the outer side of the top connector, the inner side of the rotating connecting ring has an internal thread structure, and a central connecting metal head is provided at the middle position of the top connector.

[0010] Preferably, the outermost layer of the coaxial cable body is an outer sheath layer, an outer conductor is provided at the inner side of the outer sheath layer, and a single-core detection wire is provided between the outer conductor and the outer sheath layer.

[0011] Preferably, an insulating shielding layer is provided on the inner side of the outer sheath layer, and an insulating layer is provided on the inner side of the insulating shielding layer.

[0012] Preferably, a conductor shielding layer is provided on the inner side of the insulating layer, and a conductor layer is provided on the inner side of the conductor shielding layer.

[0013] Preferably, the location where the coaxial cable body is wound is a take-up roller, which has a cylindrical structure in the middle and disc-shaped structures on both sides.

[0014] Preferably, a vertical support frame is provided on the side of the winding roller, and a supporting movable chassis is provided at the bottom of the vertical support frame.

[0015] Preferably, a bottom-connecting caster is provided at the bottom of the supporting mobile chassis, and the bottom-connecting caster is installed and connected to the bottom corner of the supporting mobile chassis by screws.

[0016] Compared with the prior art, this utility model provides a leaky coaxial cable with a built-in fault detection line, which has the following advantages:

[0017] In a leaky coaxial cable with a built-in fault detection line, the coaxial cable body has a first connecting sheath layer, which has a side threaded layer. A rotating adjusting ring is located on the outer side of the side threaded layer, and a plug-in connection groove is located on the side of the rotating adjusting ring. A snap-fit ​​bevel post is located in the plug-in connection groove, and a built-in telescopic spring is located at the bottom of the snap-fit ​​bevel post. A second connecting sheath layer is located on the side of the first connecting sheath layer, and a snap-fit ​​layer is located on the side of the second connecting sheath layer. The snap-fit ​​layer has through holes. The outer layer of the coaxial cable body passes through the first connecting sheath layer and the second connecting sheath layer. The two-layer plug-in connection is used for plugging, and then the snap-fit ​​is secured by the snap-fit ​​slope post. After snap-fit, the rotation is limited by the rotating adjustment ring. When disassembly is required, rotate the rotating adjustment ring to disengage from the compression limit, then press the plug-in connection layer to move it towards the position of the rotating adjustment ring to compress the snap-fit ​​slope post inward. Then rotate it to the position of the non-snap-fit ​​slope post for disassembly. With the improvement of this utility model, a certain length of outer sheath layer can be spliced ​​together, which can effectively replace a damaged part without replacing the whole, thereby effectively saving resources and improving the practicality of the leakage coaxial cable with built-in fault detection line. Attached Figure Description

[0018] Figure 1 This is an enlarged structural diagram of the leakage coaxial cable near the end of the built-in fault detection line of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of the leakage coaxial cable with built-in fault detection line of this utility model.

[0020] Figure 3 This is a front view cross-sectional diagram of the leakage coaxial cable with built-in fault detection line of this utility model.

[0021] Figure 4 This is an enlarged structural diagram of the leakage coaxial cable with built-in fault detection line at position A of this utility model.

[0022] Figure 5 This is a partial cross-sectional view of one side of the protective ring layer of the leakage coaxial cable connection with the built-in fault detection line of this utility model.

[0023] In the diagram: 1. Coaxial cable body; 2. Rewinding drum; 3. Vertical support frame; 4. Supporting movable chassis; 5. Bottom connecting casters; 6. Top connector; 7. Rotating connecting ring; 8. Central connecting metal head; 9. Outer sheath layer; 10. Single-core detection wire; 11. Outer conductor; 12. Insulation shielding layer; 13. Insulation layer; 14. Conductor shielding layer; 15. Conductor layer; 16. Connecting protective ring layer one; 17. Side threaded layer; 18. Rotating adjusting ring; 19. Connecting protective ring layer two; 20. Plug-in snap-fit ​​layer; 21. Plug-in connecting groove; 22. Snap-fit ​​slope column; 23. Built-in telescopic spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-5 As shown, a leaky coaxial cable with a built-in fault detection line includes a coaxial cable body 1 and a top connector 6 provided at the end of the coaxial cable body 1.

[0026] The coaxial cable body 1 is provided with a connecting sheath layer 16, which has a side threaded layer 17. A rotating adjusting ring 18 is located on the outer side of the side threaded layer 17. A plug-in connecting groove 21 is located on the side of the rotating adjusting ring 18. A snap-fit ​​bevel post 22 is located in the plug-in connecting groove 21. A built-in telescopic spring 23 is located at the bottom of the snap-fit ​​bevel post 22. A connecting sheath layer 29 is located on the side of the connecting sheath layer 16, and a plug-in snap-fit ​​layer 20 is located on the side of the connecting sheath layer 29. The plug-in snap-fit ​​layer 20 has through holes. The outer layer of the coaxial cable body 1 is connected by the connecting sheath layer 16 and the connecting sheath layer 29. The insertion and snap-fit ​​layer 20 on the second 19 is inserted, and then snap-fitted by the snap-fit ​​slope post 22. After snap-fitting, the rotation is limited by the rotating adjustment ring 18. When disassembly is required, rotate the rotating adjustment ring 18 to disengage from the compression limit, then press the insertion and snap-fit ​​layer 20 to move it to the position of the rotating adjustment ring 18 to compress the snap-fit ​​slope post 22 inward, and then rotate it to the position of the non-snap-fit ​​slope post 22 for disassembly. With the improvement of this utility model, a certain length of the outer sheath layer 9 can be spliced ​​together, which can effectively replace a damaged part without replacing the whole, thereby effectively saving resources and improving the practicality of the leakage coaxial cable with built-in fault detection line.

[0027] like Figure 2As shown, a rotating connecting ring 7 is provided on the outer side of the top connector 6, and the inner side of the rotating connecting ring 7 has an internal thread structure. A central connecting metal head 8 is provided in the middle of the top connector 6. The rotating connecting ring 7 is rotated to connect with the designated connector through the thread, and then the signal is transmitted through the central connecting metal head 8.

[0028] like Figure 3 As shown, the outermost layer of the coaxial cable body 1 is the outer sheath layer 9. An outer conductor 11 is provided on the inner side of the outer sheath layer 9. A single-core detection wire 10 is provided between the outer conductor 11 and the outer sheath layer 9. The outer conductor 11 serves as a wire in the transmission circuit and together with the inner conductor, it forms a signal transmission circuit, enabling the current to form a complete circuit in the cable, thereby realizing signal transmission. The single-core detection wire 10 locates cable breaks, slot blockages, or water ingress locations through impedance changes or TDR (time domain reflection) technology.

[0029] like Figure 3 As shown, an insulating shielding layer 12 is provided on the inner side of the outer sheath layer 9, an insulating layer 13 is provided on the inner side of the insulating shielding layer 12, a conductor shielding layer 14 is provided on the inner side of the insulating layer 13, and a conductor layer 15 is provided on the inner side of the conductor shielding layer 14. The insulating layer 13 is used to shield external interference and prevent signal leakage.

[0030] like Figure 1 As shown, the winding position of the coaxial cable body 1 is a take-up roller 2. The take-up roller 2 is a cylindrical structure with discs on both sides. A vertical support frame 3 is provided on the side of the take-up roller 2, and a supporting movable base 4 is provided at the bottom of the vertical support frame 3. The take-up roller 2 can rotate to wind up and collect the coaxial cable body 1.

[0031] like Figure 1 As shown, a bottom connecting caster 5 is provided at the bottom of the supporting mobile chassis 4. The bottom connecting caster 5 is installed and connected to the bottom corner of the supporting mobile chassis 4 by screws. The bottom connecting caster 5 facilitates the transportation of the organized coaxial cable body 1.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leaky coaxial cable with a built-in fault detection line, characterized in that: Includes a coaxial cable body (1) and a top connector (6) provided at the end of the coaxial cable body (1); The features are as follows: a first connecting sheath layer (16) is provided on the coaxial cable body (1), a side thread layer (17) is provided on the first connecting sheath layer (16), a rotating adjusting ring (18) is provided on the outer side of the side thread layer (17), a plug-in connecting groove (21) is provided on the side of the rotating adjusting ring (18), a snap-fit ​​slope post (22) is provided in the plug-in connecting groove (21), a built-in telescopic spring (23) is provided at the bottom of the snap-fit ​​slope post (22), a second connecting sheath layer (19) is provided on the side of the first connecting sheath layer (16), and the second connecting sheath layer (19)... A plug-in snap-fit ​​layer (20) is provided on the side of the cable. The plug-in snap-fit ​​layer (20) has through holes. The outer layer of the coaxial cable body (1) is plugged in through the plug-in snap-fit ​​layer (20) on the first connecting ring layer (16) and the second connecting ring layer (19). Then it is snapped in by the snap-fit ​​slope column (22). After snapping, the rotation is limited by the rotating adjustment ring (18). When disassembly is required, the rotating adjustment ring (18) is rotated to disengage from the compression limit. Then the plug-in snap-fit ​​layer (20) is pressed to move towards the position of the rotating adjustment ring (18) to compress the snap-fit ​​slope column (22) inward. Then it is rotated to the position of the non-snap-fit ​​slope column (22) for disassembly.

2. The leaky coaxial cable with built-in fault detection line according to claim 1, characterized in that: A rotating connecting ring (7) is provided on the outer side of the top connector (6), the inner side of the rotating connecting ring (7) has an internal thread structure, and a central connecting metal head (8) is provided at the middle position of the top connector (6).

3. A leaky coaxial cable with a built-in fault detection line according to claim 1, characterized in that: The outermost layer of the coaxial cable body (1) is an outer sheath layer (9), an outer conductor (11) is provided on the inner side of the outer sheath layer (9), and a single-core detection wire (10) is provided between the outer conductor (11) and the outer sheath layer (9).

4. A leaky coaxial cable with a built-in fault detection line according to claim 3, characterized in that: An insulating shielding layer (12) is provided on the inner side of the outer sheath layer (9), and an insulating layer (13) is provided on the inner side of the insulating shielding layer (12).

5. A leaky coaxial cable with a built-in fault detection line according to claim 4, characterized in that: A conductor shielding layer (14) is provided on the inner side of the insulating layer (13), and a conductor layer (15) is provided on the inner side of the conductor shielding layer (14).

6. A leaky coaxial cable with a built-in fault detection line according to claim 1, characterized in that: The winding position of the coaxial cable body (1) is a take-up roller (2), which is a cylindrical structure with discs on both sides.

7. A leaky coaxial cable with a built-in fault detection line according to claim 6, characterized in that: A vertical support frame (3) is provided on the side of the winding roller (2), and a supporting movable chassis (4) is provided at the bottom of the vertical support frame (3).

8. A leaky coaxial cable with a built-in fault detection line according to claim 7, characterized in that: The bottom of the supporting mobile chassis (4) is provided with a bottom connecting caster wheel (5), which is installed and connected to the bottom corner of the supporting mobile chassis (4) by screws.

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