A high-temperature resistant wire and cable for outdoor use

Abstract

The present invention discloses a high-temperature resistant wire and cable for outdoor use, which relates to the technical field of cables. It includes a core body, on which a first sheath is sleeved, and on the first sheath, a second sheath is sleeved. Between the second sheath and the first sheath, a separation mechanism is fixedly connected at intervals in an array. Between every two separation mechanisms and the first sheath and the second sheath, a first cavity is formed. On the inner wall of the first sheath, a contraction mechanism for circularly driving a low-temperature medium into the first cavity is fixedly connected at intervals in an array. The separation mechanism provided in the present invention forms a plurality of first cavities and second cavities with the first sheath and the second sheath. Through the provided contraction mechanism, the circulated low-temperature medium is driven to flow to the high-temperature location, thereby reducing the temperature at the high-temperature location, enabling the overall wire and cable to work in a relatively high-temperature environment and increasing the service life of the wire and cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and particularly to a high-temperature resistant wire and cable for outdoor use. Background Art

[0002] The service life of wire and cable is affected by multiple factors, among which temperature is an important factor. In a high-temperature environment, the materials of wire and cable will accelerate aging, greatly shortening the service life of wire and cable. The outdoor laying methods of wire and cable include overhead laying, direct burial laying, pipe buried laying, etc. During the laying of a section of wire and cable, part of the wire and cable is laid in a low-temperature environment such as underground, and part of the wire and cable is in an exposed high-temperature environment. The wire and cable in the high-temperature environment has a higher degree of aging and a shorter service life, and it requires manual inspection and maintenance, consuming a large amount of manpower. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-temperature resistant wire and cable for outdoor use to solve the problems raised in the above background art.

[0004] To achieve the above invention purpose, the present invention adopts the following technical solutions:

[0005] A high-temperature resistant wire and cable for outdoor use provided by the present invention includes a core body. A first sheath is sleeved on the core body, and a second sheath is sleeved on the first sheath. A separating mechanism is fixedly connected between the second sheath and the first sheath at intervals in an array. A first cavity is formed between every two separating mechanisms and the first sheath and the second sheath. The inner wall of the first sheath is fixedly connected with a shrinking mechanism for circularly driving a low-temperature medium into the first cavity at intervals in an array.

[0006] Further, the separating mechanism includes a first separating ring fixedly connected between the first sheath and the second sheath. First separating plates are fixedly connected to the first separating ring in an array. First communication holes are formed in the first separating ring in an array. Second communication holes are formed in the first separating ring near the first communication holes in an array. A connecting plate is fixedly connected between the first communication hole and the second communication hole, and the other end of the connecting plate is fixedly connected with an adjacent connecting plate. Second separating rings are fixedly connected between the first sheath and the core body in an array. A second cavity is formed between each second separating ring and the first sheath and the core body. A first connection hole for communicating the second cavity and the first cavity is formed in the first sheath.

[0007] Further, the contraction mechanism includes a fixed seat fixedly connected to the inner wall of the first sheath. An installation through groove is provided on the fixed seat. Both sides of the inner wall of the fixed seat are fixedly connected with first connecting blocks. A moving seat is slidably connected in the installation through groove. An installation groove is provided on the moving seat. Both sides of the top end of the moving seat are fixedly connected with support blocks. A sliding wheel is rotatably connected to the support block. A top rod is slidably connected in the installation groove. Second connecting blocks are fixedly connected to both sides of the bottom end of the top rod located in the installation groove. A connecting rope is fixedly connected to each first connecting block. The connecting rope bypasses the sliding wheel and is fixedly connected to the second connecting block. The top rod penetrates through the fixed seat and extends outside the installation through groove. An airbag is fixedly connected to the bottom end of the fixed seat.

[0008] Further, one end of the top rod extending outside the installation through groove is fixedly connected with a support rod, and the support rod is fixedly connected with the connecting plate.

[0009] Further, one side of the airbag extends into the installation through groove and is fixedly connected with the moving seat.

[0010] Further, a third connecting hole is provided on the first sheath of the first cavity and the second cavity adjacent to the fixed seat.

[0011] Further, second partition plates are fixedly connected in an array at positions corresponding to the first partition plate on the inner wall of the first sheath. A second connecting hole is provided in one of the first partition plates adjacent to the fixed seat.

[0012] Further, the connecting plate is made of a flexible material and has a certain stretchability.

[0013] Further, connecting pipes are fixedly connected to both ends of the second communication hole. The other end of the connecting pipe penetrates through the first sheath and is communicated with the second cavity.

[0014] Further, one-way valves are provided at both the connecting pipe and the second connecting hole.

[0015] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0016] The partition mechanism provided by the present invention forms a plurality of first cavities and second cavities between the first sheath and the second sheath. The contraction mechanism provided drives the circulating low-temperature medium at other positions to flow to the high-temperature place, thereby reducing the temperature at the high-temperature place, enabling the overall wire and cable to work in a higher-temperature environment, and increasing the service life of the wire and cable;

[0017] The contraction mechanism provided drives the transmission structure to operate through the airbag that expands automatically at high temperature, can automatically control the temperature of the wire and cable, reduces the manual intervention process, and reduces the labor cost.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not unduly limit the present invention.

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the specific structure of the present invention;

[0022] Figure 3 is a side view of the present invention;

[0023] Figure 4 is Figure 3 an enlarged view at A-A in;

[0024] Figure 5 is a side sectional view of the present invention;

[0025] Figure 6 is a schematic diagram of the internal structure of the present invention;

[0026] Figure 7 is a schematic diagram of the connection between the contraction mechanism and the first partition plate of the present invention;

[0027] Figure 8 is a schematic diagram of the specific structure of the contraction mechanism of the present invention.

[0028] In the figure:

[0029] 1, core body; 2, first sheath; 3, second sheath; 4, first cavity; 5, first partition ring; 6, first partition plate; 7, first communication hole; 8, second communication hole; 9, connecting plate; 10, second partition ring; 11, second cavity; 12, first connection hole; 13, fixed seat; 14, installation through groove; 15, first connection block; 16, moving seat; 17, installation groove; 18, support block; 19, sliding wheel; 20, ejector rod; 21, second connection block; 22, connecting rope; 23, airbag; 24, support rod; 25, second partition plate; 26, second connection hole; 27, third connection hole; 28, connecting pipe. DETAILED DESCRIPTION OF THE INVENTION

[0030] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0031] Please refer to Figures 1 to 8 , the present invention provides a high-temperature resistant wire and cable for outdoor use, including a core body 1, a first sheath 2 sleeved on the core body 1, a second sheath 3 sleeved on the first sheath 2, a separating mechanism fixedly connected at intervals in an array between the second sheath 3 and the first sheath 2, and a first cavity 4 formed between every two separating mechanisms and the first sheath 2 and the second sheath 3. A contraction mechanism for circularly driving a low-temperature medium into the first cavity 4 is fixedly connected at intervals in an array on the inner wall of the first sheath 2.

[0032] The provided separating mechanism divides the space outside the core body 1, and forms a plurality of first cavities 4 between the first sheath 2 and the second sheath 3. The number of formed first cavities 4 matches the wire and cable in use. At the same time, due to the difference in the laying position when the wire and cable is in use, the medium temperature in the first cavity 4 is different. When the medium temperature in one or more of the first cavities 4 rises, the contraction mechanism provided circulates to drive the low-temperature medium at other positions to flow into the high-temperature first cavity 4, so that the temperature in the high-temperature first cavity 4 drops, and further enables the overall wire and cable to work in a higher temperature environment, increasing the service life of the wire and cable.

[0033] Please refer to Figure 2 and Figure 4 , the separating mechanism includes a first separating ring 5 fixedly connected between the first sheath 2 and the second sheath 3. First separating plates 6 are fixedly connected in an array on the first separating ring 5. First communication holes 7 are formed in an array on the first separating ring 5. Second communication holes 8 are formed in an array on the first separating ring 5 at positions close to the first communication holes 7. A connecting plate 9 is fixedly connected between the first communication holes 7 and the second communication holes 8. The other end of the connecting plate 9 is fixedly connected to the adjacent connecting plate 9. Second separating rings 10 are fixedly connected in an array between the first sheath 2 and the core body 1. A second cavity 11 is formed between each second separating ring 10 and the first sheath 2 and the core body 1. A first connection hole 12 for communicating the second cavity 11 and the first cavity 4 is formed on the first sheath 2.

[0034] Please refer to Figures 5 to 8, the contraction mechanism includes a fixed seat 13 fixedly connected to the inner wall of the first sheath 2. An installation through groove 14 is formed in the fixed seat 13. Both sides of the inner wall of the fixed seat 13 are fixedly connected with a first connecting block 15. A moving seat 16 is slidably connected in the installation through groove 14. An installation groove 17 is formed in the moving seat 16. Both sides of the top of the moving seat 16 are fixedly connected with a support block 18. A sliding wheel 19 is rotatably connected to the support block 18. A top rod 20 is slidably connected in the installation groove 17. Both sides of the bottom end of the top rod 20 located in the installation groove 17 are fixedly connected with a second connecting block 21. A connecting rope 22 is fixedly connected to each first connecting block 15. The connecting rope 22 bypasses the sliding wheel 19 and is fixedly connected to the second connecting block 21. The top rod 20 penetrates through the fixed seat 13 and extends outside the installation through groove 14. An airbag 23 is fixedly connected to the bottom end of the fixed seat 13.

[0035] Please refer to Figure 7 , one end of the top rod 20 extending outside the installation through groove 14 is fixedly connected with a support rod 24. The support rod 24 is fixedly connected with the connecting plate 9. The provided support rod 24 increases the contact area with the connecting plate 9, so that when the top rod 20 moves, the connecting plate 9 generates a greater deformation amount through the support rod 24, and further makes the volume of the first cavity 4 change more, more medium is pumped in and discharged, and the cooling effect is increased.

[0036] Please refer to Figure 8 , one side of the airbag 23 extends into the installation through groove 14 and is fixedly connected with the moving seat 16. Due to temperature changes, the volume of the airbag 23 can generate corresponding changes, thereby driving the movement of the moving seat 16.

[0037] When the temperature of a section of the wire and cable rises, the airbag 23 is heated and expands, increasing in volume, thereby pushing the moving seat 16 upward. The movement of the moving seat 16 drives the support block 18 to move, and the movement of the support block 18 drives the sliding wheel 19 to move. And during the movement of the moving seat 16, the support block 18 moves away from the first connection block 15. The length of the connecting rope 22 is fixed. The movement of the sliding wheel 19 is equivalent to pulling the connecting rope 22 to move. Then the connecting rope 22 drives the second connection block 21 to move, the movement of the second connection block 21 drives the ejector rod 20 to move, the movement of the ejector rod 20 drives the support rod 24 to move, and the movement of the support rod 24 drives the connecting plate 9 to move, increasing the space of the first cavity 4. The volume change of the airbag 23 drives the connecting plate 9 to produce a large deformation, enabling more low-temperature medium to be pumped into the second cavity 11, cooling this area, enhancing the cooling effect, thereby pumping the low-temperature medium in the adjacent second cavity 11 into the first cavity 4. The low-temperature medium enters the second cavity 11 at this location through the second communication hole 8 and the connecting pipe 28, thereby cooling this area, enabling the wire and cable to operate in a relatively high-temperature environment, increasing the service life of the wire and cable. When the temperature at this location drops, the volume of the airbag 23 shrinks, and the medium in the second cavity 11 is discharged from this location through the transmission structure, thus forming a cycle, capable of automatically controlling the temperature of the wire and cable, reducing the manual intervention process, and lowering the labor cost.

[0038] Please refer to Figure 5 , on the first sheath 2 of the first cavity 4 and the second cavity 11 adjacent to the fixed seat 13, a third connection hole 27 is opened, connecting the corresponding first cavity 4 and the second cavity 11 through the third connection hole 27, enabling the discharged medium to flow into the adjacent first cavity 4 through the corresponding second cavity 11 and finally discharged from the adjacent and connected first cavity 4.

[0039] Please refer to Figure 5 , at the position corresponding to the first partition plate 6 on the inner wall of the first sheath 2, second partition plates 25 are fixedly connected in an array. One of the second partition plates 25 adjacent to the fixed seat 13 is provided with a second connection hole 26. The second partition plates 25 divide the second cavity 11. When the volume of the first cavity 4 changes, the low-temperature medium in the adjacent corresponding second cavity 11 is pumped in to achieve cooling at this location. The second connection hole 26 connects every two adjacent divided second cavities 11, enabling the discharged medium to enter the adjacent second cavity 11 through the second connection hole 26.

[0040] The connecting plate 9 is made of a flexible material and has a certain stretchability. The connecting plate 9 can contract, changing the volume of the first cavity 4, and pumping the low-temperature medium into or out of the first cavity 4.

[0041] Please refer to Figure 4, both ends of the second communication hole 8 are fixedly connected with connecting pipes 28. The other ends of the connecting pipes 28 penetrate through the first sheath 2 and are communicated with the second cavity 11, so that the pumped low-temperature medium can enter the second cavity 11 from the adjacent first cavity 4 through the connecting pipes 28.

[0042] Check valves are provided at both the connecting pipes 28 and the second connection holes 26 (not shown in the figure), so that the low-temperature medium enters the second cavity 11 from the adjacent first cavity 4, and then enters the adjacent second cavity 11 from the second cavity 11, and is discharged through the third connection hole 27, separating the pumped medium from the discharged medium, and increasing the cooling effect.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high temperature resistant wire and cable for outdoor use, characterized in that: The invention comprises a core body (1), wherein a first sheath (2) is sleeved on the core body (1), a second sheath (3) is sleeved on the first sheath (2), a partition mechanism is fixedly connected to the second sheath (3) and the first sheath (2) at intervals in an array, a first cavity (4) is formed between every two of the partition mechanisms and the first sheath (2) and the second sheath (3), and a contraction mechanism for circulating and driving a low-temperature medium into the first cavity (4) is fixedly connected to the inner wall of the first sheath (2) at intervals in an array; The separation mechanism comprises a first separation ring (5) fixedly connected between the first sleeve (2) and the second sleeve (3); a first separation plate (6) is fixedly connected in an array on the first separation ring (5); a first communication hole (7) is provided in an array on the first separation ring (5); a second communication hole (8) is provided in an array on the first separation ring (5) at a position close to the first communication hole (7); a connecting plate (9) is fixedly connected between the first communication hole (7) and the second communication hole (8); the other end of the connecting plate (9) is fixedly connected to an adjacent connecting plate (9); a second separation ring (10) is fixedly connected in an array between the first sleeve (2) and the core (1); a second cavity (11) is formed between each of the second separation rings (10) and the first sleeve (2) and the core (1); a first connection hole (12) for connecting the second cavity (11) and the first cavity (4) is provided at a position of the first sleeve (2) corresponding to the fixing seat (13); The retracting mechanism comprises a fixed seat (13) fixedly connected to the inner wall of the first sheath (2), the fixed seat (13) being provided with a mounting groove (14), both sides of the inner wall of the fixed seat (13) being fixedly connected with first connecting blocks (15), a movable seat (16) being slidably connected in the mounting groove (14), the movable seat (16) being provided with a mounting groove (17), both sides of the top of the movable seat (16) being fixedly connected with supporting blocks (18), and the supporting block (18) being rotatably connected with a sliding wheel (19), A push rod (20) is slidably connected in the installation groove (17), and second connection blocks (21) are fixedly connected to both sides of the bottom end of the push rod (20) located in the installation groove (17). A connection rope (22) is fixedly connected to each of the first connection blocks (15), and the connection rope (22) passes around the sliding wheel (19) and is fixedly connected to the second connection block (21). The push rod (20) passes through the fixing seat (13) and extends to the outside of the installation groove (14). An air bag (23) is fixedly connected to the bottom end of the fixing seat (13).

2. The outdoor high temperature resistant wire and cable according to claim 1, characterized in that: One end of the push rod (20) extending outside the installation slot (14) is fixedly connected to a support rod (24), and the support rod (24) is fixedly connected to the connection plate (9).

3. The outdoor high temperature resistant wire and cable according to claim 2, characterized in that: One side of the airbag (23) extends into the installation slot (14) and is fixedly connected to the movable seat (16).

4. The outdoor high temperature resistant wire and cable according to claim 3, characterized in that: A third connection hole (27) is provided on the first cavity (4) adjacent to the fixing seat (13) and the first sleeve (2) of the second cavity (11).

5. The outdoor high temperature resistant wire and cable according to claim 4, characterized in that: Second partition plates (25) are fixedly connected to the inner wall of the first protective sleeve (2) at positions corresponding to the first partition plates (6) in an array, and one of the second partition plates (25) adjacent to the fixing seat (13) is provided with a second connection hole (26).

6. The outdoor high temperature resistant wire and cable according to claim 5, characterized in that: The connecting plate (9) is made of a flexible material and has a certain degree of stretchability.

7. The outdoor high temperature resistant wire and cable according to claim 6, characterized in that: Both ends of the second communication hole (8) are fixedly connected to a connection pipe (28), and the other end of the connection pipe (28) passes through the first sheath (2) and is connected to the second cavity (11).

8. The outdoor high temperature resistant wire and cable according to claim 7, characterized in that: Both the connecting pipe (28) and the second connecting hole (26) are provided with a one-way valve.

Images