An anticorrosive fire-resistant cable and a processing technology thereof

Abstract

The application relates to the cable technical field and discloses an anti-corrosion fireproof cable which comprises an outer protective layer and a bottom shell, the inner part of the outer protective layer is provided with three insulation shielding layers, the sections of the three insulation shielding layers are in contact, the inner part of each insulation shielding layer is fixedly connected with an XLPE insulation layer, the inner part of the XLPE insulation layer is sleeved with a conductor shielding layer, the inner part of the conductor shielding layer is provided with a conductor, and the bottom of the outer protective layer is fixedly pasted with the bottom shell; during cable laying on the ground, the bottom shell is in contact with the ground, when the cable is extruded by external objects, the bottom shell is deformed, the supporting block, the round rod and the disc move downwards, the spring is compressed, the bottom end of the disc is extruded on the piezoelectric ceramic, the piezoelectric ceramic is deformed under the action of force, polarization phenomenon is generated in the piezoelectric ceramic, the medium surface is electrified, the indicating lamp can be lighted, thus, whether the cable is extruded can be judged by observing whether the indicating lamp is lighted by the staff.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a corrosion-resistant and fire-resistant cable and its processing technology. Background Technology

[0002] Cables are typically rope-like structures made of several or groups of conductors (at least two conductors per group) twisted together. Each group of conductors is insulated from the others and is often twisted around a central conductor, with the entire structure covered by a highly insulating outer layer. Cables are characterized by internal conductivity and external insulation. Types of cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, aluminum alloy cables, and so on. They are all composed of single or multiple strands of conductors and insulation layers, used to connect circuits, electrical appliances, etc.

[0003] There are certain shortcomings in the cables currently on the market. For example, when laying cables, the cables are very long and it is strictly forbidden to squeeze them during the laying process. However, workers cannot know whether the cable is being squeezed by external objects, and even if a section of the cable is squeezed, it cannot be detected in time. In addition, cables are used both when laid on the ground and when suspended at high places. However, the outer wall of the cable is smooth and free of external objects, making it inconvenient to use it when suspended at high places. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a corrosion-resistant and fire-resistant cable and its processing technology, thus solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant and fire-resistant cable, comprising an outer sheath and a bottom shell. Three insulating shielding layers are installed inside the outer sheath, with their cross-sections in contact. An XLPE insulating layer is fixedly connected inside each insulating shielding layer. A conductor shielding layer is sleeved inside the XLPE insulating layer, and a conductor is installed inside the conductor shielding layer. The bottom shell is adhered and fixed to the bottom of the outer sheath. Cylindrical tubes are fixedly connected to the left and right sides of the lower inner surface of the bottom shell. A piezoelectric ceramic is installed inside the cylinder on the left side. A collar is fixedly connected to the upper inner wall of the cylinder. A spring is sleeved inside the cylinder. A disc is placed at the top of the spring. A round rod is fixedly connected to the upper surface of the disc. A support block is fixedly connected to the top of the round rod, and the support block is fixedly attached to the bottom of the outer sheath. An indicator light is embedded on the upper left side of the bottom shell, and the indicator light is fixedly connected to the bottom shell. The lower surface of the bottom shell is open... A first long slot is provided. A second long slot is formed on the lower surface of the bottom shell near the rear of the first long slot, and the second long slot is connected to the first long slot. A spiral slide rail is fixedly connected inside the second long slot. A slider is slidably connected to the inner side wall of the spiral slide rail. A vertical plate is fixedly connected to the upper surface of the slider. The top of the vertical plate extends into the interior of the bottom shell. A transmission rod No. 3 is rotatably connected to the front surface of the vertical plate via a rotating shaft. A transmission rod No. 2 is rotatably connected to the front surface of the slider. A transmission rod No. 1 is rotatably connected to the middle of the rear surface of the transmission rod No. 2. A fixing block is rotatably connected to one side of the rear surface of the transmission rod No. 1, and the fixing block is fixed to the rear left side of the first long slot. A connecting plate is rotatably connected to the front side of one side of the transmission rod No. 2, and the rear surface of the connecting plate is rotatably connected to one side of the transmission rod No. 3. A suspension ring is fixedly connected to the bottom end of the connecting plate. The suspension ring is embedded in the interior of the first long slot and is slidably connected to the first long slot.

[0008] Preferably, the inner wall of the outer protective layer is fitted with a steel strip armor layer, and the inner wall of the steel strip armor layer is fixedly connected to an inner lining layer.

[0009] Preferably, the inner lining layer has multiple insulating shielding layers inside, and a non-woven bag is placed between adjacent insulating shielding layers. The non-woven bag is filled with fire extinguishing agent, and the inner lining layer has cable core filler inside.

[0010] Preferably, the bottom end of the piezoelectric ceramic is fixed to the inner lower surface of the bottom shell, the spring is provided on the outside of the piezoelectric ceramic, and the piezoelectric ceramic and the disk are distributed vertically opposite each other.

[0011] Preferably, the piezoelectric ceramic is electrically connected to the indicator light.

[0012] Preferably, the upright plate is located behind the cylinder, and the upright plate is slidably connected to the cylinder.

[0013] Preferably, the third transmission rod and the second transmission rod are located above the first long groove, and both the third transmission rod and the second transmission rod are rotatably connected to the first long groove.

[0014] Preferably, the bottom shell is made of rubber and is capable of deformation when subjected to an applied external force.

[0015] A processing technology for a corrosion-resistant and fire-resistant cable includes the following steps:

[0016] S1. Prepare cable components. Inside the insulation shielding layer, install the XLPE insulation layer, conductor shielding layer and conductor in sequence. On the inner wall of the rubber layer, install the steel tape armor layer and inner lining layer in sequence.

[0017] S2. Install the three insulating shielding layers inside the inner lining layer, and the multiple insulating shielding layers are evenly distributed. Place the non-woven bags between adjacent insulating shielding layers. There are several non-woven bags distributed from front to back.

[0018] S3. Fill the interior of the inner liner with cable core filler;

[0019] S4. Apply asphalt anti-corrosion paint to the outer wall of the rubber layer, and lay a light-shielding film on the asphalt anti-corrosion paint.

[0020] S5. Install the parts into the bottom shell according to the positional description relationship, and attach the bottom shell and the support block to the bottom of the light-shielding film.

[0021] Preferably, the nonwoven bags distributed front to back are spaced 2 cm apart, and each nonwoven bag is in a closed state.

[0022] (III) Beneficial Effects

[0023] This invention provides a corrosion-resistant and fire-resistant cable and its processing technology, which has the following beneficial effects:

[0024] (1) In this invention, the outer sheath is composed of a light-shielding film, an asphalt anti-corrosion paint, and a rubber layer. By coating the outer wall of the rubber layer with asphalt anti-corrosion paint, the cable can be well protected. A light-shielding film is laid on the asphalt anti-corrosion paint. The light-shielding film can block the light on the cable surface, reduce direct light, and improve the anti-corrosion performance of the cable surface. In addition, by installing a non-woven bag in the inner lining layer, which contains a fire extinguishing agent, the fire resistance of the cable can be improved.

[0025] (2) In this invention, during the cable laying process, the bottom shell contacts the ground. When the cable is squeezed by an external object, the bottom shell itself deforms, the support block, the round rod, and the disc move downwards, the spring is compressed, and the bottom end of the disc is pressed against the piezoelectric ceramic. The piezoelectric ceramic deforms under the action of force, and polarization occurs inside it. At the same time, it causes the surface of the medium to become charged, which can make the indicator light light up. In this way, the staff can judge whether the cable is squeezed by watching whether the indicator light is lit, which is more intuitive and quick. Moreover, when the external force on the piezoelectric ceramic is removed, it will return to the uncharged state, and the indicator light will go out. In addition, the spring, the round rod, the disc, and the cylinder can also play a buffering role to reduce the cable being squeezed.

[0026] (3) In this invention, structural components such as connecting plate, suspension ring, fixing block, transmission rod No. 3, slider, vertical plate, spiral slide rail, and second long groove are installed in the bottom shell. Construction personnel can invert the cable with the bottom shell facing up, hold the slider, and slide the slider from one side to the other side. During the sliding process, the vertical plate moves to the left, and then the transmission rod No. 2 and transmission rod No. 1 rotate. The connecting plate moves in the vertical direction, and the transmission rod No. 3 rotates with the vertical plate. In this way, through a series of transmissions, the suspension ring can be moved out of the bottom shell, and the construction personnel can use the suspension ring to suspend the cable at a high place. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0029] Figure 3 This is an enlarged structural diagram of point A in this invention;

[0030] Figure 4 For the present invention Figure 1 A schematic diagram of the structure viewed from below in the middle section;

[0031] Figure 5 This is a schematic diagram of the internal structure of the outer protective layer of the present invention.

[0032] In the diagram: 1. Outer sheath; 2. Steel strip armor layer; 3. Inner lining layer; 4. Insulating shielding layer; 5. XLPE insulation layer; 6. Cable core filler; 7. Non-woven bag; 8. Conductor; 9. Conductor shielding layer; 10. Indicator light; 11. Bottom shell; 12. Support block; 13. Round rod; 14. Collar; 15. Disc; 16. Cylinder; 17. Piezoelectric ceramic; 18. Spring; 19. Fixing block; 20. Suspension ring; 21. First long slot; 22. Transmission rod No. 1; 23. Transmission rod No. 2; 24. Loop slide rail; 25. Slider; 26. Vertical plate; 27. Transmission rod No. 3; 28. Connecting plate; 29. ​​Second long slot; 30. Light-shielding film; 31. Asphalt anti-corrosion paint; 32. Rubber layer. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-5As shown, the present invention provides a technical solution: a corrosion-resistant and fire-resistant cable, comprising an outer sheath 1 and a bottom shell 11. Three insulating shielding layers 4 are installed inside the outer sheath 1, with their cross-sections in contact. An XLPE insulating layer 5 is fixedly connected inside each insulating shielding layer 4. A conductor shielding layer 9 is sleeved inside the XLPE insulating layer 5, and a conductor 8 is installed inside the conductor shielding layer 9. The bottom shell 11 is adhered and fixed to the bottom of the outer sheath 1. Cylindrical tubes 16 are fixedly connected to the left and right sides of the lower inner surface of the bottom shell 11. A piezoelectric ceramic 17 is installed inside the cylinder 16 on the left side. A collar 14 is fixedly connected to the upper part of the inner wall of the cylinder 16. A spring 18 is sleeved inside the cylinder 16. A disc 15 is placed on the top of the spring 18. A round rod 13 is fixedly connected to the upper surface of the disc 15. A support block 12 is fixedly connected to the top of the round rod 13. The support block 12 is fixed to the bottom of the outer protective layer 1. An indicator light 10 is embedded on the upper left side of the bottom shell 11. The indicator light 10 is fixedly connected to the bottom shell 11. A first elongated groove is formed on the lower surface of the bottom shell 11. 21. A second long groove 29 is formed on the lower surface of the bottom shell 11 near the rear of the first long groove 21, and the second long groove 29 is connected to the first long groove 21. A spiral slide rail 24 is fixedly connected inside the second long groove 29. A slider 25 is slidably connected to the inner side wall of the spiral slide rail 24. A vertical plate 26 is fixedly connected to the upper surface of the slider 25. The top of the vertical plate 26 extends into the interior of the bottom shell 11. A transmission rod No. 3 27 is rotatably connected to the front surface of the vertical plate 26 via a rotating shaft. A transmission rod No. 23 is rotatably connected to the front surface of the slider 25. A transmission rod 22 is rotatably connected to the middle of the rear surface of rod 23. A fixing block 19 is rotatably connected to one side of the rear surface of transmission rod 22, and the fixing block 19 is fixed to the rear left side of the first long groove 21. A connecting plate 28 is rotatably connected to the front side of one side of transmission rod 23, and the upper rear surface of the connecting plate 28 is rotatably connected to one side of transmission rod 3 27. A suspension ring 20 is fixedly connected to the bottom end of the connecting plate 28. The suspension ring 20 is embedded in the interior of the first long groove 21 and is slidably connected to the first long groove 21.

[0035] Furthermore, the inner wall of the outer protective layer 1 is fitted with a steel strip armor layer 2, and the inner wall of the steel strip armor layer 2 is fixedly connected with an inner lining layer 3. The steel strip armor layer 2 is capable of resisting tensile forces.

[0036] Furthermore, the inner lining layer 3 has multiple insulating shielding layers 4 inside, and a non-woven bag 7 is placed between adjacent insulating shielding layers 4. The non-woven bag 7 is filled with fire extinguishing agent. The inner lining layer 3 has cable core filler 6 inside. The non-woven bag 7 is elliptical in shape. The fire extinguishing agent in the non-woven bag 7 can improve the fire resistance of the cable.

[0037] Furthermore, the bottom end of the piezoelectric ceramic 17 is fixed to the inner lower surface of the bottom shell 11, and a spring 18 is provided on the outside of the piezoelectric ceramic 17. The piezoelectric ceramic 17 and the disk 15 are distributed vertically opposite each other. The piezoelectric ceramic 17 can generate the piezoelectric effect. The piezoelectric effect refers to the deformation of certain media under the action of force, which causes polarization to occur inside, and at the same time causes the surface of the medium to become charged, which in turn makes the indicator light 10 light up. When the external force is removed, it will return to the uncharged state, and then the indicator light 10 will turn off.

[0038] Furthermore, the piezoelectric ceramic 17 is electrically connected to the indicator light 10.

[0039] Furthermore, the upright plate 26 is located behind the cylinder 16 and is slidably connected to the cylinder 16. When the slider 25 is moved, the upright plate 26 moves in the horizontal direction.

[0040] Furthermore, transmission rod 3 27 and transmission rod 23 are located above the first long groove 21, and both transmission rod 3 27 and transmission rod 23 are rotatably connected to the first long groove 21.

[0041] Furthermore, the bottom shell 11 is made of rubber. The bottom shell 11 can deform after being subjected to an applied external force, and can return to its original state when the applied external force disappears.

[0042] A processing technology for a corrosion-resistant and fire-resistant cable includes the following steps:

[0043] S1. Prepare cable components. Inside the insulation shielding layer 4, install the XLPE insulation layer 5, conductor shielding layer 9 and conductor 8 in sequence. On the inner wall of the rubber layer 32, install the steel tape armor layer 2 and inner lining layer 3 in sequence.

[0044] S2. Install three insulating shielding layers 4 inside the inner lining layer 3, and distribute multiple insulating shielding layers 4 evenly. Place non-woven bags 7 between adjacent insulating shielding layers 4. There are several non-woven bags 7 distributed from front to back.

[0045] S3. Fill the inner lining layer 3 with cable core filler 6;

[0046] S4. Apply asphalt anti-corrosion paint 31 to the outer wall of the rubber layer 32, and lay a light-shielding film 30 on the asphalt anti-corrosion paint 31.

[0047] S5. Install the parts into the bottom shell 11 according to the positional description, and attach the bottom shell 11 and the support block 12 to the bottom of the light-shielding film 30.

[0048] Furthermore, the non-woven bags 7 distributed front and back are spaced 2cm apart, and each non-woven bag 7 is in a closed state.

[0049] In summary, the workflow of this invention is as follows: During the cable laying process, the bottom shell 11 contacts the ground. When the cable is squeezed by an external object, the bottom shell 11 itself deforms, the support block 12, the round rod 13, and the disc 15 move downwards, the spring 18 is compressed, and the bottom end of the disc 15 presses against the piezoelectric ceramic 17. The piezoelectric ceramic 17 is energized, which can make the indicator light 10 light up. In this way, the workers can judge whether the cable is squeezed by watching whether the indicator light 10 is lit, which is more intuitive and quick. The construction workers can also use the cable to suspend it at a high place. The cable is inverted with the bottom shell 11 facing upwards. The construction workers hold the slider 25 and slide the slider 25 from one side to the other side. During the sliding process, the upright plate 26 moves to the left, and then the transmission rod 23 and the transmission rod 1 rotate. The connecting plate 28 moves in the vertical direction, and the transmission rod 3 rotates between the upright plate 26 and the transmission rod 27. In this way, through a series of transmissions, the suspension ring 20 can be moved out of the bottom shell 11. The construction workers can use the suspension ring 20 to suspend the cable at a high place.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant and fire-resistant cable, comprising an outer sheath (1) and a bottom shell (11), characterized in that: The outer sheath (1) has three insulating shielding layers (4) installed inside, with the cross-sections of the three insulating shielding layers (4) in contact with each other. Each insulating shielding layer (4) has an XLPE insulating layer (5) fixedly connected inside. The XLPE insulating layer (5) has a conductor shielding layer (9) sleeved inside. The conductor shielding layer (9) has a conductor (8) installed inside. The bottom shell (11) is attached and fixed to the bottom of the outer sheath (1). The bottom shell (11) has cylinders (16) fixedly connected to the left and right sides of the lower inner surface of the bottom shell (11). The cylinder (16) on the left side has a piezoelectric ceramic (17) installed inside. The inner wall of the cylinder (16) is above A collar (14) is fixedly connected to the cylinder (16). A spring (18) is fitted inside the cylinder (16). A disc (15) is placed on the top of the spring (18). A rod (13) is fixedly connected to the upper surface of the disc (15). A support block (12) is fixedly connected to the top of the rod (13). The support block (12) is fixed to the bottom of the outer protective layer (1). An indicator light (10) is embedded on the upper left side of the bottom shell (11). The indicator light (10) is fixedly connected to the bottom shell (11). A first long groove (21) is opened on the lower surface of the bottom shell (11). The lower surface of the bottom shell (11) is close to the first long groove. A second long groove (29) is opened behind the groove (21), and the second long groove (29) is connected to the first long groove (21). A spiral slide rail (24) is fixedly connected inside the second long groove (29). A slider (25) is slidably connected to the inner side wall of the spiral slide rail (24). A vertical plate (26) is fixedly connected to the upper surface of the slider (25). The top of the vertical plate (26) extends into the interior of the bottom shell (11). A transmission rod No. 3 (27) is rotatably connected above the front surface of the vertical plate (26) via a rotating shaft. A transmission rod No. 2 (23) is rotatably connected to the front surface of the slider (25). The rear of the transmission rod No. 2 (23) A transmission rod 1 (22) is rotatably connected to the middle of the surface. A fixing block (19) is rotatably connected to one side of the rear surface of the transmission rod 1 (22), and the fixing block (19) is fixed to the rear left side of the first long groove (21). A connecting plate (28) is rotatably connected to the front side of one side of the transmission rod 2 (23), and the rear surface of the connecting plate (28) is rotatably connected to one side of the transmission rod 3 (27). A suspension ring (20) is fixedly connected to the bottom end of the connecting plate (28), and the suspension ring (20) is embedded in the interior of the first long groove (21). The suspension ring (20) is slidably connected to the first long groove (21).

2. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The inner wall of the outer protective layer (1) is fitted with a steel strip armor layer (2), and the inner wall of the steel strip armor layer (2) is fixedly connected with an inner lining layer (3).

3. The corrosion-resistant and fire-resistant cable according to claim 2, characterized in that: The inner lining layer (3) is provided with a plurality of insulating shielding layers (4), and a non-woven bag (7) is placed between adjacent insulating shielding layers (4). The non-woven bag (7) is filled with fire extinguishing agent, and the inner lining layer (3) is provided with cable core filler (6).

4. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The bottom end of the piezoelectric ceramic (17) is fixed to the inner lower surface of the bottom shell (11), and the spring (18) is provided on the outside of the piezoelectric ceramic (17). The piezoelectric ceramic (17) and the disk (15) are distributed vertically opposite each other.

5. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The piezoelectric ceramic (17) is electrically connected to the indicator light (10).

6. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The upright plate (26) is located behind the cylinder (16), and the upright plate (26) is slidably connected to the cylinder (16).

7. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The third transmission rod (27) and the second transmission rod (23) are located above the first long groove (21), and both the third transmission rod (27) and the second transmission rod (23) are rotatably connected to the first long groove (21).

8. The corrosion-resistant and fire-resistant cable according to claim 1, characterized in that: The bottom shell (11) is made of rubber and can deform when subjected to an applied external force.

9. The processing technology of a corrosion-resistant and fire-resistant cable according to any one of claims 1-8, characterized in that: The following steps are included: S1. Prepare cable components. Inside the insulation shielding layer (4), install XLPE insulation layer (5), conductor shielding layer (9) and conductor (8) in sequence. On the inner wall of the rubber layer (32), install steel tape armor layer (2) and inner lining layer (3) in sequence. S2. Install the three insulating shielding layers (4) inside the inner lining layer (3), and the multiple insulating shielding layers (4) are evenly distributed. Place the non-woven bags (7) between adjacent insulating shielding layers (4), and there are several non-woven bags (7) distributed from front to back. S3. The inner lining layer (3) is filled with cable core filler (6); S4. Apply asphalt anticorrosion paint (31) to the outer wall of the rubber layer (32) and lay a light-shielding film (30) on the asphalt anticorrosion paint (31); S5. Install the parts in the bottom shell (11) according to the positional description relationship, and attach the bottom shell (11) and the support block (12) to the bottom of the light-shielding film (30).

10. The processing technology of a corrosion-resistant and fire-resistant cable according to claim 9, characterized in that: The nonwoven bags (7) distributed in front and behind are spaced 2cm apart, and each nonwoven bag (7) is in a closed state.

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