A signal cable and a signal cable assembly

Abstract

The present invention relates to the technical field of cables, and specifically relates to a signal cable and a signal cable assembly, including a cable body. The outside of the cable body is coated with a flame retardant layer, a first armor is installed outside the flame retardant layer, a first rubber layer is installed on the outer surface of the first armor, a second rubber layer is installed outside the first rubber layer, a buffer part is provided between the first rubber layer and the second rubber layer, the buffer part makes there be a gap between the first rubber layer and the second rubber layer, the gap is filled with gas and self-sealing liquid, a support assembly is installed at the lower part of the gap, a second armor is installed outside the second rubber layer, a first protective layer is wound around the outside of the second armor, and a second protective layer is coated outside the first protective layer. By setting the buffer part, the cable can be buffered when being impacted, the gas filled in the gap can prevent water from entering the cable body, and at the same time, the gas drives the self-sealing liquid to flow out from the damaged port, and the self-sealing liquid can repair and block the damaged port.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and particularly to a signal cable and a signal cable assembly. Background Art

[0002] Communication cables are cables for transmitting telephones, telegrams, fax documents, television and radio programs, data, and other electrical signals. Among them, there is a marine communication cable. Due to the particularity of its environmental factors, the cable itself is often eroded by seawater on its surface. Therefore, higher waterproof performance requirements are imposed on the cable itself. The Chinese utility model patent with the application number "CN202020524041.1" proposes a marine communication cable resistant to seawater corrosion, including an anti-corrosion layer. The anti-corrosion layer has a circular cross-section. A sliding groove is provided on the inner wall surface of the anti-corrosion layer. The sliding groove is a circular ring-shaped groove. A fixed tube is arranged inside the anti-corrosion layer. The fixed tube has a circular cross-section. An isolator is arranged between the anti-corrosion layer and the fixed tube. In the present invention, by providing rolling balls, the unstable environment on the seagoing ship will cause the cable itself to shake, or when manually handling the cable on the ship, the anti-corrosion layer will receive an external inward impact force. The impact force will cause the cable to shake and become entangled. The outer wall surface of the rolling ball contacts and slides on the inner bottom surface of the sliding groove, causing the isolator to slide inside the sliding groove. When the cable is externally and internally squeezed and shaken, the anti-corrosion layer and the fixed tube are in dynamic sliding through the rolling balls, avoiding the situation where the cable is entangled between the inside of the fixed tube and the external anti-corrosion layer, resulting in a break inside the cable; however, this type of cable cannot prevent seawater from entering the cable interior and preventing the damage of the cable by seawater when the cable surface is damaged. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a signal cable and a signal cable assembly to solve the problem that existing cables cannot prevent seawater from entering the cable interior and preventing the damage of the cable by seawater when the cable surface is damaged.

[0004] Based on the above purpose, the present invention provides a signal cable, including a cable body. A flame-retardant layer is coated on the outside of the cable body. A first armor is installed on the outside of the flame-retardant layer. A first rubber layer is installed on the outer surface of the first armor. A second rubber layer is installed on the outside of the first rubber layer. A buffer part is provided between the first rubber layer and the second rubber layer. The buffer part supports the first rubber layer and the second rubber layer, so that there is a gap between the first rubber layer and the second rubber layer. The gap is filled with gas and self-sealing liquid. A lifting assembly for filling the self-sealing liquid located in the lower part of the gap to the upper part of the gap is installed along the length direction at the lower part of the gap. A second armor is installed on the outside of the second rubber layer. A first protective layer is wound around the outside of the second armor. A spring assembly is sleeved on the outside of the first protective layer. A second protective layer is coated on the outside of the spring assembly.

[0005] When the second armor and the second rubber layer of the signal cable are damaged, the gas filled in the gap can prevent water from entering the cable body. At the same time, the gas drives the self-sealing liquid to flow out from the damaged opening. The self-sealing liquid is an adhesive containing materials with short fiber filaments or substances with fine particles. When the self-sealing liquid flows out from the damaged opening, the materials with short fiber filaments or substances with fine particles can repair and block the damaged opening to prevent water from entering the cable body and causing damage to the cable body.

[0006] Optionally, the buffer part includes a plurality of first docking parts and a plurality of second docking parts. The first docking parts are docked with the second docking parts to form an elastic support component. The support components are evenly arranged in the gap along the circumferential direction of the cable body. There are multiple support components, and the multiple support components are arranged along the length direction of the cable body, and there are gaps between adjacent support components.

[0007] Optionally, the first docking part has a plug, the second docking part has a groove matching with the plug, the first docking part and the second docking part are docked through the cooperation of the plug and the groove, and a rubber block is filled in the groove.

[0008] Optionally, the first docking part and the second docking part are V-shaped elastic frames with the same shape. A clamping groove is provided at the end of the V-shaped elastic frame. The first docking part and the second docking part are respectively arranged on the outer surface of the first rubber layer and the inner surface of the second rubber layer. The two V-shaped elastic frames form the elastic support component through the mutual cooperation of the clamping grooves.

[0009] Optionally, the lifting component includes a plurality of elastic rubber hoses. The elastic rubber hoses are arranged along the length direction of the cable body and penetrate through the lower part of the gap. The elastic rubber hoses are inflated to squeeze the self-sealing liquid located in the lower part of the gap to the upper part of the gap.

[0010] Optionally, the spring component includes two spring bodies with different pitches. The two spring bodies with different pitches are arranged at intervals and are connected end to end.

[0011] Optionally, the self-sealing liquid is an adhesive containing materials with short fiber filaments or substances with fine particles.

[0012] Based on the above embodiments, a signal cable assembly is proposed, which includes a signal cable and a connector. A connecting boss is provided at the end of the signal cable. The connecting boss is connected with the connector through a ball joint. A liquid injection port and an air injection port are provided on the connecting boss. The lifting component is connected with the connecting boss, and a plurality of blocking components for blocking the gap are further provided on the signal cable.

[0013] Optionally, the blocking assembly includes a blocking ring, which is mounted on the second armor, and a sliding groove is provided in the blocking ring, in which a plurality of blocking blocks are slidably mounted, and a plurality of vertical grooves are provided on the side surface of the blocking ring, one end of the blocking block is convexly provided with a column pin, and the column pin can be slidably mounted in the vertical groove, and one end of the blocking ring is rotatably mounted with a driving ring, and a plurality of arc guide grooves are provided on a side of the driving ring facing the sliding groove, the column pin is located in the arc guide groove, and an external gear is provided on the outer surface of the driving ring, and a driving motor is also installed on the blocking ring, and a driving gear is installed at the output end of the driving motor, the driving gear is meshed with the external gear and drives the driving ring to rotate, and when the driving ring rotates, the blocking block moves into the gap by driving the column pin to move, and the plurality of blocking blocks are assembled together to form a complete annular member to close the gap.

[0014] Optionally, an accordion cover is installed between the connecting boss and the joint.

[0015] The beneficial effects of the present invention are as follows: by providing a buffer portion, the cable can be buffered when it is subjected to impact force, thereby preventing it from causing damage to the internal cable body; the gas filled in the gap formed by the buffer portion can prevent water from entering the cable body; at the same time, the gas drives the self-replenishing liquid to flow out from the damaged port, and the self-replenishing liquid can repair and seal the damaged port, thereby preventing water from entering the cable body and causing damage to the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 is a schematic diagram of a signal cable according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the support assembly of the signal cable of the embodiment of the present invention when it is working;

[0019] Figure 3 is a schematic diagram of another embodiment of a buffer portion of a signal cable;

[0020] Figure 4 is a schematic diagram of a signal cable assembly according to an embodiment of the present invention;

[0021] Figure 5 Schematic diagram of a blocking component according to an embodiment of the present invention Figure 1 ;

[0022] Figure 6 Schematic diagram of the blocking component according to an embodiment of the present invention Figure 2 。

[0023] The markings in the figure are as follows:

[0024] 1. Cable body; 2. Flame retardant layer; 3. First armor; 4. First rubber layer; 5. Second rubber layer; 6. Gap; 7. Supporting component; 8. Second armor; 9. Plug; 10. Groove; 11. Rubber block; 12. V-shaped elastic frame; 13. Joint; 14. Connecting boss; 15. Liquid injection port; 16. Inflation port; 17. Blocking ring; 18. Sliding groove; 19. Blocking block; 20. Vertical groove; 21. Pin; 22. Driving ring; 23. Arc-shaped guide groove; 24. Driving motor; 25. Bellows cover. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object to be described changes, the relative positional relationship may also change accordingly.

[0027] A signal cable, such as Figure 1 and Figure 2As shown in the figure, it includes a cable body 1, a flame retardant layer 2 is coated on the outside of the cable body 1, a first armor 3 is installed on the outside of the flame retardant layer 2, a first rubber layer 4 is installed on the outer surface of the first armor 3, a second rubber layer 5 is installed on the outside of the first rubber layer 4, a buffer part is arranged between the first rubber layer 4 and the second rubber layer 5, the buffer part supports the first rubber layer 4 and the second rubber layer 5, so that there is a gap 6 between the first rubber layer 4 and the second rubber layer 5, and the gap 6 is filled with gas and self-sealing liquid. A lifting component 7 is installed along the length direction at the lower part of the gap 6 to fill the self-sealing liquid located at the lower part of the gap 6 to the upper part of the gap 6. A second armor 8 is installed on the outside of the second rubber layer 5, a first protective layer is wound around the outside of the second armor 8, a spring component is sleeved on the outside of the first protective layer, and a second protective layer is coated on the outside of the spring.

[0028] When the second armor 8 and the second rubber layer 5 of the signal cable are damaged, the gas filled in the gap 6 can prevent water from entering the cable body 1. At the same time, the gas drives the self-sealing liquid to flow out from the damaged opening. The self-sealing liquid is an adhesive containing materials with short fiber filaments or fine particles. When the self-sealing liquid flows out from the damaged opening, the materials with short fiber filaments or fine particles can repair and block the damaged opening to prevent water from entering the cable body 1 and causing damage to the cable body 1.

[0029] In one embodiment, the buffer part includes a number of first docking parts and a number of second docking parts. The first docking parts and the second docking parts are docked to form an elastic support component. The support component is evenly arranged in the gap 6 along the circumferential direction of the cable body 1. There are multiple support components, and the multiple support components are arranged along the length direction of the cable body 1, and there is a gap between adjacent support components. When an object impacts the signal cable, the support component formed by the docking of the first docking part and the second docking part can buffer the impact force to prevent damage to the internal cable body 1. At the same time, the gas filled in the gap 6 can also buffer the impact force. The support components are arranged in multiple numbers and there is a gap between adjacent support components, so that the signal cable has sufficient bending performance, which is convenient for the transportation and laying of the cable.

[0030] Specifically, in one embodiment, the first docking part has a plug 9, the second docking part has a groove 10 that cooperates with the plug 9, and the first docking part and the second docking part are docked through the cooperation of the plug 9 and the groove 10, and the groove 10 is filled with a rubber block 11. The first docking part and the second docking part can slide relative to each other, and the rubber block 11 is provided to make the support component elastic.

[0031] In another embodiment, as Figure 3As shown, the first docking part and the second docking part are V-shaped elastic frames 12 with the same shape. A clamping groove is provided at the end of the V-shaped elastic frame 12. The first docking part and the second docking part are respectively arranged on the outer surface of the first rubber layer 4 and the inner surface of the second rubber layer 5. The two V-shaped elastic frames 12 form the elastic support assembly through the mutual cooperation of the clamping grooves. The V-shaped elastic frame 12 can be made of spring steel, which increases the strength of the cable.

[0032] In one embodiment, the propping-up assembly 7 includes a plurality of elastic rubber tubes. The elastic rubber tubes are arranged along the length direction of the cable body 1 at the lower part of the gap 6. The elastic rubber tubes are inflated to squeeze the self-sealing liquid located at the lower part of the gap 6 to the upper part of the gap 6. In order to reduce the weight of the cable, the self-sealing liquid does not fill the entire gap 6. When the upper part of the cable is damaged, the elastic rubber tubes can be inflated to squeeze the self-sealing liquid at the lower part, so that the self-sealing liquid flows to the damaged part of the cable. At the same time, the setting of the propping-up assembly 7 can also increase the flow rate of the self-sealing liquid, which is convenient for quickly repairing the damaged part.

[0033] In one embodiment, the spring assembly includes two groups of spring bodies with different pitches. The two groups of spring bodies with different pitches are arranged at intervals and are connected end to end. This setting facilitates the cable to quickly return to a straight state.

[0034] Based on the above embodiments, a signal cable assembly is proposed, as Figure 4 shown, including a signal cable and a connector 13. A connecting boss 14 is provided at the end of the signal cable. The connecting boss 14 is connected to the connector 13 through a ball joint, which is convenient for the docking of the cable. A liquid injection port 15 and an air injection port 16 are provided on the connecting boss 14. The self-sealing liquid is injected into the gap 6 through the liquid injection port 15, and gas is injected into the gap 6 through the air injection port 16. In order to improve the flame retardant effect of the cable, the injected gas is an inert gas. The propping-up assembly 7 is connected to the connecting boss 14, and a plurality of blocking assemblies for blocking the gap 6 are also provided on the signal cable.

[0035] When the damage to a certain part of the cable is relatively large and the self-sealing liquid is not enough to repair the damaged part, the two ends of the damaged part can be blocked through the blocking assembly, which is convenient for repairing the cable at that part.

[0036] Specifically, as Figure 5 and Figure 6As shown, the blocking component includes a blocking ring 17, which is installed on the second armor 8. A sliding groove 18 is formed in the blocking ring 17, and a plurality of blocking blocks 19 are slidably installed in the sliding groove 18. A plurality of vertical grooves 20 are formed on the side surface of the blocking ring 17. One end of the blocking block 19 protrudes with a pin 21, and the pin 21 is slidably installed in the vertical groove 20. One end of the blocking ring 17 is rotatably installed with a driving ring 22. The side of the driving ring 22 facing the sliding groove 18 is provided with a plurality of arc-shaped guide grooves 23. The pin 21 is located in the arc-shaped guide groove 23. The outer surface of the driving ring 22 is provided with an external gear. A driving motor 24 is also installed on the blocking ring 17. The output end of the driving motor 24 is installed with a driving gear, and the driving gear meshes with the external gear and drives the driving ring 22 to rotate. When the driving ring 22 rotates, by driving the pin 21 to move, the blocking block 19 is moved into the gap 6. A plurality of the blocking blocks 19 are combined into a complete ring-shaped part to close the gap 6. Sealing gaskets are provided at both ends of the blocking block 19. When the driving ring 22 rotates, the arc-shaped guide groove 23 is driven to move, and the arc-shaped guide groove 23 drives the pin 21 to move along the vertical groove 20, thereby driving the blocking block 19 to move. When the blocking block 19 moves inward, a plurality of the blocking blocks 19 are combined into a complete ring-shaped part, and the end of the blocking block 19 presses against the outer surface of the first rubber layer 4 to close the gap 6 of the intact cable on one side, preventing the leakage of gas and self-sealing liquid in the gap 6 of the intact cable on one side, and then repairing the damaged part of the cable.

[0037] Optionally, a bellows 25 is installed between the connecting boss 14 and the joint 13.

[0038] By providing a buffer part in the present invention, the cable can be buffered when subjected to an impact force, preventing damage to the internal cable body. The gas filled in the gap formed by the buffer part can prevent water from entering the cable body. At the same time, the gas drives the self-sealing liquid to flow out from the damaged opening, and the self-sealing liquid can repair and block the damaged opening to prevent water from entering the cable body and causing damage to the cable body.

[0039] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the idea of the present invention, the technical features between the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0040] The present invention 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 principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A signal cable assembly, comprising a signal cable and a connector (13), wherein the signal cable comprises a cable body (1), characterized in that, The outside of the cable body (1) is coated with a flame retardant layer (2). A first armor (3) is installed outside the flame retardant layer (2). A first rubber layer (4) is installed on the outer surface of the first armor (3). A second rubber layer (5) is installed outside the first rubber layer (4). A buffer part is provided between the first rubber layer (4) and the second rubber layer (5). The buffer part supports the first rubber layer (4) and the second rubber layer (5), so that there is a gap (6) between the first rubber layer (4) and the second rubber layer (5). The gap (6) is filled with gas and self-sealing liquid. A lifting component (7) for filling the self-sealing liquid located in the lower part of the gap (6) to the upper part of the gap (6) is installed along the length direction at the lower part of the gap (6). A second armor (8) is installed outside the second rubber layer (5). A first protective layer is wound around the outside of the second armor (8). A spring component is sleeved outside the first protective layer. A second protective layer is coated outside the spring component; A connecting boss (14) is provided at the end of the signal cable. The connecting boss (14) is connected to the joint (13) through a ball joint. A liquid injection port (15) and an air injection port (16) are provided on the connecting boss (14). The lifting component (7) is connected to the connecting boss (14). A plurality of blocking components for blocking the gap (6) are also provided on the signal cable; The blocking component includes a blocking ring (17). The blocking ring (17) is installed on the second armor (8). A sliding groove (18) is opened in the blocking ring (17). A plurality of blocking blocks (19) are slidably installed in the sliding groove (18). A plurality of vertical grooves (20) are opened on the side surface of the blocking ring (17). One end of the blocking block (19) protrudes with a pin (21). The pin (21) is slidably installed in the vertical groove (20). A driving ring (22) is rotatably installed at one end of the blocking ring (17). A plurality of arc-shaped guide grooves (23) are provided on the surface of the driving ring (22) facing the sliding groove (18). The pin (21) is located in the arc-shaped guide groove (23). An external gear is provided on the outer surface of the driving ring (22). A driving motor (24) is also installed on the blocking ring (17). The output end of the driving motor (24) is installed with a driving gear. The driving gear meshes with the external gear and drives the rotation of the driving ring (22). When the driving ring (22) rotates, by driving the movement of the pin (21), the blocking block (19) moves into the gap (6). A plurality of the blocking blocks (19) are combined into a complete ring-shaped part to close the gap (6).

2. The signal cable assembly according to claim 1, characterized in that, The buffer portion includes a plurality of first docking portions and a plurality of second docking portions. The first docking portions are docked with the second docking portions to form an elastic support assembly. The support assembly is circumferentially and uniformly arranged in the gap (6) along the cable body (1). There are a plurality of the support assemblies, and the plurality of support assemblies are arranged along the length direction of the cable body (1), and there are gaps between adjacent support assemblies.

3. A signal cable assembly according to claim 2, wherein, The first docking portion has a plug (9), and the second docking portion has a groove (10) that cooperates with the plug (9). The first docking portion and the second docking portion are docked through the cooperation of the plug (9) and the groove (10), and the groove (10) is filled with a rubber block (11).

4. A signal cable assembly according to claim 2, wherein The first docking portion and the second docking portion are V-shaped elastic frames (12) with the same shape. The ends of the V-shaped elastic frames (12) are provided with engaging grooves. The first docking portion and the second docking portion are respectively arranged on the outer surface of the first rubber layer (4) and the inner surface of the second rubber layer (5). The two V-shaped elastic frames (12) form the elastic support assembly through the mutual cooperation of the engaging grooves.

5. A signal cable assembly according to claim 1, wherein The lifting assembly (7) includes a plurality of elastic rubber tubes. The elastic rubber tubes are arranged in the lower part of the gap (6) along the length direction of the cable body (1). The elastic rubber tubes are inflated to squeeze the self-sealing liquid located in the lower part of the gap (6) to the upper part of the gap (6).

6. The signal cable assembly according to claim 1, characterized in that, The spring assembly includes two sets of spring bodies with different pitches. The two sets of spring bodies with different pitches are arranged at intervals and are connected end to end.

7. A signal cable assembly according to claim 1, characterized in that, The self-sealing liquid is an adhesive containing short fiber filaments or substances with fine particles.

8. The signal cable assembly according to claim 1, characterized in that, An accordion cover (25) is installed between the connecting boss (14) and the joint (13).

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