Cable with physical warning

Abstract

The present application relates to the technical field of cable, especially to a cable with physical early warning, comprising a plurality of conductors, a plurality of insulation shielding layers, an inner sheath, a filler and an outer sheath, the plurality of conductors are distributed equidistantly along the circumference, and the outer wall of the conductor is compounded with the insulation shielding layer, the inner sheath is wrapped outside the insulation shielding layer, and the gap between the insulation shielding layer and the inner sheath is filled with the filler, the heat dissipation of the conductor is ensured without hollowing, the outer wall of the inner sheath is compounded with the outer sheath, and the outer wall of the outer sheath is compounded with high-temperature early warning components equidistantly from left to right. The temperature self-checking function is provided, the cable is not affected by external conditions, the missed detection of the cable during artificial temperature measurement is prevented, the effect of real-time and fixed-point temperature measurement is achieved, the installation of the cross-linked polyethylene strip is realized without removing the conductor, time and labor are saved during the addition or replacement in the middle, the cable enclosure work efficiency is improved, the interval distance can be adjusted according to the conductor power voltage, and the use is flexible.

Description

Technical Field

[0001] This invention relates to the field of power cable technology, and more particularly to a cable with physical early warning. Background Technology

[0002] A cable is a conductor made of one or more mutually insulated conductors and an outer insulating protective layer, used to transmit electricity or information from one place to another. Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. The material of the cable varies depending on the environment in which it is used. Many factors can cause cables to overheat during power transmission, such as: overly dense cable installation leading to poor ventilation and heat dissipation; increased resistance due to excessive stretching and bending; and absorption of sunlight by the cable sheath. A cable break can result in millions in losses, making regular high-temperature testing of cables essential. This involves slowly moving an infrared thermal imager along the cable to detect changes in radiation intensity at different temperatures, thus preventing fires and power outages caused by overheating. However, high-temperature testing of cables relies on external equipment; cables themselves do not have self-checking capabilities. In situations where space constraints hinder instrument movement, missed detections are possible. Furthermore, traditional instrument testing methods cannot achieve real-time or fixed-point temperature measurement. The environment in which cables are used is varied. In order to overcome the impact of the environment on cables and extend their service life, cables are usually covered with sheaths during cable laying. The sheaths protect the cables. Traditional cable sheaths are tubular, and the sheaths can only be installed by disconnecting one end of the cable. Adding or replacing sheaths is time-consuming and labor-intensive, resulting in low efficiency of cable protection work. As a carrier of electrical energy, the voltage and current that cables carry are variable. In order to prevent the spacing between cables from decreasing or direct contact caused by thermal expansion and contraction, the cables are locked together by fixing brackets and pipe clamps. However, the fixing brackets currently used are all fixed and cannot adjust the cable spacing according to the amount of electricity carried by the cable. They are not flexible enough and cannot meet the needs of cable laying. Summary of the Invention

[0003] In order to overcome the shortcomings of existing technologies, such as the tendency for missed detections in high-temperature cable testing, difficulties in sheath installation, and the inability to achieve fixed spacing between cables, this invention aims to provide a cable with physical early warning capabilities.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable with physical early warning, comprising several conductors, several insulating shielding layers, an inner sheath, filler material, and an outer sheath. The conductors are equidistantly distributed circumferentially, and the outer walls of the conductors are composite with insulating shielding layers. The inner sheath wraps around the outside of the insulating shielding layers, and filler material is used to fill the gaps between the insulating shielding layers and the inner sheath to ensure the heat dissipation of the conductors without voids. The outer sheath is composite on the outer wall of the inner sheath, and high-temperature early warning components are composited equidistantly from left to right on the outer wall of the outer sheath. Anti-wear components are installed on the outer wall of the outer sheath, and multiple outer sheaths are connected by an adjustable spacing component.

[0005] Preferably, the high temperature warning component includes a base composited on the outer wall of the outer sheath, the inner cavity of the base being filled with a thermal expansion body, a sealing plate for sealing the thermal expansion body being installed on the top of the base, and the surface of the sealing plate fitting into the outer wall of the outer sheath, the surface of the sealing plate having an "I"-shaped cutout, and an internal marking plate with different colors from the center to the outside on the upper surface of the marking plate.

[0006] Preferably, the thermal expansion body is either a nickel-chromium alloy or mercury.

[0007] Preferably, the anti-wear component includes a cross-linked polyethylene strip fitted onto the outer wall of the outer sheath. Two sets of hinged clamps are installed at both ends of the cross-linked polyethylene strip. The two clamps are closed to form a circle that fits the outer wall of the outer sheath. The outer wall of the clamps has a receiving groove at an openable position. A connecting plate is hinged to the inner cavity of the receiving groove of one of the clamps, and a positioning pin is installed in the inner cavity of the receiving groove of the other clamp. The end of the positioning pin is a circular clip. The outer wall of the connecting plate has an insertion hole that fits into the outer wall of the positioning pin. The inner wall of the connecting plate is evenly equipped with protrusions from left to right.

[0008] Preferably, the cross-linked polyethylene strip is spirally wound around the outer wall of the outer sheath.

[0009] Preferably, the adjusting assembly includes a housing, which is a circular shell. A plurality of positioning blind holes are equidistantly spaced along the outer edge of the right side wall of the housing. A rotating shaft is rotatably mounted at the center of the housing. A rocker arm is mounted on the right side of the rotating shaft, located outside the housing, and a positioning bolt is screwed to the other end of the rocker arm. The rotating shaft is braked by screwing the positioning bolt into the positioning blind holes. A coaxial rotating turntable is mounted on the outer wall of the rotating shaft, and a protruding ridge is provided on the left side wall of the turntable. A plurality of sliders are equidistantly inserted into the side wall of the housing along the circumference. Teeth that mesh with the protruding ridge of the turntable are provided on the inner side of the right side wall of each slider. A first tube clamp is mounted on the outer end of each slider, and a second tube clamp is screwed to the outer wall of the first tube clamp. The first and second tube clamps are locked to the outer wall of the outer sheath through their cooperation.

[0010] Preferably, the raised ridges on the left side surface of the turntable are spiral-shaped.

[0011] Preferably, the number of sliders is at least two.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes the thermal expansion body to gradually expand as the temperature of the inner and outer sheaths rises. The thermal expansion body compresses the sealing plate, causing deformation and making the cut opening larger and larger, thus exposing more and more of the marking plate. The conductor temperature is determined based on the color area of ​​the exposed marking plate. Therefore, it has a temperature self-checking function, is not affected by external conditions, and prevents missed detections when the cable is manually measured. It achieves the effect of temperature measurement at any time and at fixed points. 2. This invention uses clamping plates to clamp the outer sheath, and protrusions to improve the stability between the clamping plates and the outer sheath. With the cooperation of the connecting plate and the positioning pin, the cross-linked polyethylene strip is positioned. The cross-linked polyethylene strip is seamlessly wrapped around the outer wall of the outer sheath until both ends of the cross-linked polyethylene strip are fixed. The cross-linked polyethylene strip protects the outer sheath. The installation of the cross-linked polyethylene strip is achieved without removing the conductor. Adding or replacing it midway saves time and effort and improves the efficiency of cable protection work. 3. This invention enables the rocker arm to be positioned from multiple angles by using positioning bolts and positioning blind holes. Then, after the rotating shaft drives the turntable to rotate clockwise or counterclockwise, it is fixed. The turntable drives the slider to move inward or outward, changing the spacing between the first pipe clamps. The spacing distance can be adjusted according to the magnitude of the conductor voltage, making it flexible to use and meeting the needs of cable laying. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front sectional view of the outer sheath of the present invention; Figure 3 This is a front cross-sectional view of the high-temperature early warning component of the present invention; Figure 4 This is a schematic diagram of the sealing plate structure of the present invention; Figure 5 This is a schematic diagram of the anti-wear component structure of the present invention; Figure 6 This is a left-side cross-sectional view of the adjustable distance component of the present invention.

[0014] In the diagram: 1-Conductor, 2-Insulating shielding layer, 3-Inner sheath, 4-Filling material, 5-Outer sheath, 6-High temperature warning component, 7-Anti-wear component, 8-Adjustable distance component, 61-Base, 62-Thermal expansion body, 63-Sealing plate, 64-Slit, 65-Identification plate, 71-Cross-linked polyethylene strip, 72-Clamping plate, 73-Receiving groove, 74-Connecting plate, 75-Positioning pin, 76-Insertion hole, 77-Thrust, 81-Outer shell, 82-Positioning blind hole, 83-Rotating shaft, 84-Rock arm, 85-Positioning bolt, 86-Turntable, 87-Slider, 88-First pipe clamp, 89-Second pipe clamp. Detailed Implementation

[0015] 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.

[0016] This invention provides a technical solution: a cable with physical early warning, such as... Figures 1-6 As shown, a cable with physical early warning includes several conductors 1, several insulating shielding layers 2, an inner sheath 3, filler 4, and an outer sheath 5. The conductors 1 are evenly distributed circumferentially, and the outer wall of each conductor 1 is reinforced with an insulating shielding layer 2. The conductors 1 transmit electrical energy, while the insulating shielding layer 2 serves to insulate the conductors 1 and shield electromagnetic waves. The inner sheath 3 wraps around the outside of the insulating shielding layer 2, and can bring multiple conductors 1 together. The gaps between the insulating shielding layer 2 and the inner sheath 3 are filled with filler 4, which is a flame-retardant, high-temperature resistant, and insulating material to prevent gaps between the insulating shielding layer 2 and the inner sheath 3 and to ensure the heat dissipation of the conductors 1 in the absence of voids. The outer sheath 5 is reinforced on the outer wall of the inner sheath 3. The outer wall of the outer sheath 5 is reinforced with high-temperature early warning components 6 at equal intervals from left to right. The outer wall of the outer sheath 5 is also equipped with anti-wear components 7. Multiple outer sheaths 5 are connected by an adjusting component 8.

[0017] As a preferred embodiment, the high-temperature warning component 6 further includes a base 61 integrally formed on the outer wall of the outer sheath 5. The base 61 is made of a material with high hardness and a low coefficient of thermal expansion to prevent deformation of the base 61 as the temperature rises. The inner cavity of the base 61 is filled with a thermal expansion body 62. The volume expansion of the thermal expansion body 62 is proportional to the temperature. Due to the obstruction of the base 61, the thermal expansion body 62 expands outward from the base 61. A sealing plate 63 is installed on the top of the base 61 to seal the thermal expansion body 62. Furthermore, the surface of the sealing plate 63 fits into the outer wall of the outer sheath 5, sealing the thermal expansion body 62. The surface of the sealing plate 63 has an "I"-shaped cutout 64. After the sealing plate 63 is supported by the thermal expansion body 62, the cutout opening gradually increases, thereby increasing the exposed area of ​​the marking plate 65. The marking plate 65 is built into the interior of the sealing plate 63, and the upper surface of the marking plate 65 has different colors from the center to the outside. The larger the exposed area of ​​the marking plate 65 and the more types of colors, the higher the temperature of the conductor 1.

[0018] As a preferred option, the thermal expansion body 62 is either a nickel-chromium alloy or mercury. Nickel-chromium alloy is a solid expansion body, while mercury is a liquid expansion body. The appropriate thermal expansion body 62 can be selected according to the usage conditions.

[0019] As a preferred embodiment, the anti-wear component 7 further includes a cross-linked polyethylene strip 71 fitted onto the outer wall of the outer sheath 5. This strip is a high-temperature resistant and corrosion-resistant elastomer that wraps around the outside of the outer sheath 5, providing protection. Two sets of hinged clamps 72 are installed at both ends of the cross-linked polyethylene strip 71. The two clamps 72 close to form a circle that fits the outer wall of the outer sheath 5. A receiving groove 73 is provided at the openable position of the outer wall of the clamps 72. A connecting plate 7 is hinged to the inner cavity of the receiving groove 73 of one of the clamps 72. 4. A positioning pin 75 is installed in the inner cavity of the receiving groove 73 of another clamping plate 72, and the end of the positioning pin 75 is a round clip. The outer wall of the connecting plate 74 is provided with an insertion hole 76 that fits into the outer wall of the positioning pin 75. Under the elastic force of the outer sheath 5 on the clamping plate 72, the connecting plate 74 and the positioning pin 75 are stably connected. The inner wall of the connecting plate 74 is evenly provided with protrusions 77 from left to right. The protrusions 77 penetrate the outer sheath 5 to improve the stability between the clamping plate 72 and the outer sheath 5. The cross-linked polyethylene strip 71 will not rotate on the outer sheath 5.

[0020] As a preferred option, the cross-linked polyethylene strip 71 is spirally wound around the outer wall of the outer sheath 5, which allows the cross-linked polyethylene strip 71 to be tightly wound on the outer sheath 5, resulting in seamless winding and providing comprehensive protection for the outer sheath 5.

[0021] As a preferred embodiment, the adjustable distance assembly 8 further includes a housing 81, which is a circular shell. The circular space of the housing 81 ensures that the turntable 86 can rotate normally. A plurality of positioning blind holes 82 are equidistantly spaced along the circumferential direction on the outer edge of the right side wall of the housing 81. A rotating shaft 83 is rotatably mounted at the center of the housing 81. One end of a rocker arm 84, located outside the housing 81, is mounted on the right side of the rotating shaft 83, and a positioning bolt 85 is screwed to the other end of the rocker arm 84. The rotating shaft 83 is braked by screwing the positioning bolt 85 into the positioning blind holes 82. The outer wall of 83 is equipped with a coaxial rotating turntable 86, which can rotate around its own axis to ensure that multiple sliders 87 slide synchronously and with the same sliding distance. The left side wall of the turntable 86 is provided with a protruding ridge. Several sliders 87 are inserted into the side wall of the outer shell 81 at equal intervals along the circumference. The inner side of the right side wall of the slider 87 is provided with teeth that mesh with the protruding ridge of the turntable 86. The outer end of the slider 87 is equipped with a first tube clamp 88. The outer wall of the first tube clamp 88 is screwed with a second tube clamp 89. The first tube clamp 88 and the second tube clamp 89 are locked to the outer wall of the outer sheath 5 through the cooperation of the first tube clamp 88 and the second tube clamp 89.

[0022] As a preferred option, the raised edge on the left side surface of the turntable 86 is spiral-shaped. When the turntable 86 rotates clockwise or counterclockwise, the raised edge on the turntable 86 can press against the teeth on the slider 87 with its own inclined surface, driving the slider 87 to move inward or outward.

[0023] As a preferred option, the number of sliders 87 is at least two, so as to fix at least two outer sheaths 5. The number of sliders 87 can be increased or decreased according to the number of conductors 1.

[0024] Working principle: Step 1: The insulating shielding layer 2 and the filler 4 achieve insulation between conductors 1, enabling conductors 1 to transmit power stably, and the outer sheath 5 provides secondary protection for conductors 1. Step 2: Since the base 61, thermal expansion body 62, and sealing plate 63 are set in the outer sheath 5, the temperature can change according to the temperature changes of the inner sheath 3 and the outer sheath 5. The thermal expansion coefficient of thermal expansion body 62 is proportional to the temperature. As the temperature rises, the volume of thermal expansion body 62 gradually increases. Thermal expansion body 62 is wrapped by base 61. Therefore, thermal expansion body 62 can only expand towards sealing plate 63. Sealing plate 63 is gradually supported, the cut 64 becomes larger and larger, and the exposed area of ​​marking plate 65 becomes larger and larger. According to the increase in the color area that can be observed by marking plate 65, it can be known that the temperature of conductor 1 is constantly rising, realizing the physical detection of the temperature of conductor 1. It has the ability to self-check the temperature. The temperature detection of conductor 1 is not limited by the external environment. The temperature detection of conductor 1 is comprehensive and has high safety in use. Step 3: When conductor 1 needs protection, a set of clamps 72 are fitted onto the outer wall of the outer sheath 5, and the clamps 72 and the outer sheath 5 are integrated by inserting the protrusions 77 into the outer sheath 5. Then, the connecting plate 74 is moved so that the insertion hole 76 is fitted onto the outer wall of the positioning pin 75. Under the elastic action of the outer sheath 5, a tension is generated between the connecting plate 74 and the positioning pin 75, thereby making the connecting plate 74 and the positioning pin 75 stably connected together. One end of the cross-linked polyethylene strip 71 is fixed. The cross-linked polyethylene strip 71 is spirally wound on the outer sheath 5, forming a tube. The other end of the cross-linked polyethylene strip 71 is locked in the same way. The cross-linked polyethylene strip 71 is installed on the outer sheath 5, which improves the mechanical impact resistance and wear resistance of the outer sheath 5, thereby extending the service life of conductor 1. Step four: When fixing multiple outer sheaths 5, according to the voltage and current conducted by conductor 1, unscrew the positioning bolt 85 from the positioning blind hole 82, drive the rocker arm 84 to drive the turntable 86 on the rotating shaft 83 to rotate clockwise or counterclockwise. The rotating protrusion on the turntable 86 drives the slider 87 to move inward or outward, causing the distance between two adjacent first tube clamps 88 to decrease or increase until the distance between the first tube clamps 88 meets the fixing distance of the outer sheath 5. Screw the positioning bolt 85 into the corresponding positioning blind hole 82, fix the rotated rocker arm 84, and lock the outer sheath 5 through the cooperation of the first tube clamp 88 and the second tube clamp 89, so as to achieve equidistant installation of conductor 1, make reasonable use of the wiring space, and prevent mutual interference between conductors.

[0025] 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 cable with physical warning, comprising several conductors (1), several insulating shielding layers (2), an inner sheath (3), filler (4), and an outer sheath (5), wherein the several conductors (1) are equidistantly distributed circumferentially, and the outer wall of the conductors (1) is composite with the insulating shielding layer (2), the inner sheath (3) is wrapped around the outside of the insulating shielding layer (2), and filler (4) is filled in the gap between the insulating shielding layer (2) and the inner sheath (3) to ensure the heat dissipation of the conductors (1) without voids, and the outer sheath (5) is composite with the outer wall of the inner sheath (3), characterized in that: The outer wall of the outer sheath (5) is equidistantly reinforced with high temperature warning components (6) from left to right, and the outer wall of the outer sheath (5) is equipped with anti-wear components (7). Multiple outer sheaths (5) are connected by adjusting components (8). The adjusting assembly (8) includes a housing (81), which is a circular shell. Several positioning blind holes (82) are equidistantly spaced along the outer right side wall of the housing (81). A rotating shaft (83) is rotatably mounted at the center of the housing (81). A rocker arm (84) is mounted on the right side of the rotating shaft (83) outside the housing (81), and a positioning bolt (85) is screwed to the other end of the rocker arm (84). The rotating shaft (83) is braked by screwing the positioning bolt (85) into the positioning blind holes (82). The outer wall of the rotating shaft (83) is equipped with a turntable (86) that rotates on the same axis, and the left side wall of the turntable (86) is provided with a protruding ridge. The side wall of the outer shell (81) is equidistantly inserted with a number of sliders (87) along the circumferential direction. The inner side of the right side wall of the slider (87) is provided with teeth that mesh with the protruding ridge of the turntable (86). The outer end of the slider (87) is equipped with a first tube clamp (88), and the outer wall of the first tube clamp (88) is screwed with a second tube clamp (89). The first tube clamp (88) and the second tube clamp (89) are locked together on the outer wall of the outer sheath (5).

2. The cable with physical early warning as described in claim 1, characterized in that: The high temperature warning component (6) includes a base (61) composited on the outer wall of the outer sheath (5). The inner cavity of the base (61) is filled with a thermal expansion body (62). A sealing plate (63) is installed on the top of the base (61) to seal the thermal expansion body (62). The surface of the sealing plate (63) fits the outer wall of the outer sheath (5). The surface of the sealing plate (63) has an "I" shaped cutout (64). An identification plate (65) is built into the inside of the sealing plate (63). The upper surface of the identification plate (65) has different colors from the center to the outside.

3. A cable with physical early warning as described in claim 2, characterized in that: The thermal expansion body (62) is either a nickel-chromium alloy or mercury.

4. A cable with physical early warning as described in claim 1, characterized in that: The wear-resistant component (7) includes a cross-linked polyethylene strip (71) fitted on the outer wall of the outer sheath (5). Two sets of hinged clamps (72) are installed at both ends of the cross-linked polyethylene strip (71). The two clamps (72) are closed to form a circle that fits the outer wall of the outer sheath (5). The outer wall of the clamps (72) is provided with a receiving groove (73) at the opening and closing position. A connecting plate (74) is hinged to the inner cavity of the receiving groove (73) of one of the clamps (72). A positioning pin (75) is installed in the inner cavity of the receiving groove (73) of the other clamp (72). The end of the positioning pin (75) is a round clip. The outer wall of the connecting plate (74) is provided with an insertion hole (76) that fits into the outer wall of the positioning pin (75). The inner wall of the connecting plate (74) is evenly provided with protrusions (77) from left to right.

5. A cable with physical early warning as described in claim 4, characterized in that: The cross-linked polyethylene strip (71) is spirally wound around the outer wall of the outer sheath (5).

6. A cable with physical early warning as described in claim 1, characterized in that: The raised edges on the left side surface of the turntable (86) are spiral-shaped.

7. A cable with physical early warning as described in claim 1, characterized in that: The number of sliders (87) is at least two.

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