Power cable capable of positioning damage position

Abstract

The invention relates to the technical field of cables, in particular to a power cable capable of positioning a damage position, which comprises a cable main body, a plurality of fixed bases which are distributed in a straight line and are of a circular ring structure are fixedly mounted on the outer wall of the cable main body, and a protective layer of a circular tube structure is arranged between two adjacent fixed bases on the same cable main body. The two ends of the protection layer are fixedly installed on the corresponding side walls of the fixed base respectively, and the protection layer is made of rubber flexible materials. The protection layer is designed, the protection layer can protect the cable body, inert gas is matched to enable the protection layer to rapidly gush out of the colored ribbons after the protection layer is damaged, rapid positioning of maintainers is facilitated, and when the protection layer is damaged, the air pressure in the inflation bin is reduced, so that the maintenance efficiency is improved. Through cooperation of the spring rods and the spring blocks, the corresponding indicator lamps can be turned on, and maintenance personnel can quickly position a damaged area by turning on the indicator lamps on the two adjacent fixed bases.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a power cable capable of locating a damaged position. Background Art

[0002] Cable refers to a wire product used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. It is mainly composed of one or more insulated cores, and each of them may have a coating layer, a total protective layer and an outer sheath.

[0003] The laying of cables is generally divided into underground pre-buried and high-altitude installation. Among them, the more common one is high-altitude installation. The cables installed at high altitude are generally located in the suburbs. Therefore, they have to withstand long-term wind, sun and rain. At the same time, birds often stay on the high-altitude cables, and their claws and beaks can easily damage the insulation layer of the cables. These situations make the high-altitude cables easy to be damaged. When the high-altitude cables are damaged, it is very easy to cause short circuits, leakage, etc., and it will also cause regional power outages. The existing high-altitude cables generally only have an insulating layer wrapped on the outer surface of the core, which cannot deal with the above problems, which brings inconvenience to the use of cables. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to provide a power cable capable of locating a damaged position.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electric power cable capable of locating a damaged position, comprising a cable body, on the outer wall of which are fixedly mounted a plurality of fixed bases with circular ring structures distributed in a straight line, a protective layer with a circular tubular structure is arranged between two adjacent fixed bases on the same cable body, and both ends of the protective layer are respectively fixedly mounted on the side walls of the corresponding fixed bases, and the protective layer is made of flexible rubber material.

[0006] In the above-mentioned power cable that can locate the damaged position, an air filling chamber is formed between the protective layer and the cable body, an installation groove of a circular ring structure is provided on the outer ring wall of the fixed base, and two air filling grooves arranged opposite to each other are provided in the fixed base. A No. 1 air hole is provided on the side away from each other of the two air filling grooves on the same fixed base, and the No. 1 air hole passes through the fixed base and is connected to the corresponding air filling chamber. Two No. 2 air holes are provided on the inner wall of the installation groove, and the No. 2 air holes are connected to the corresponding air filling grooves. A sealing ring is inserted in the installation groove, and the sealing ring consists of a No. 1 semicircular ring and a No. 2 semicircular ring. Both ends of the No. 1 semicircular ring and the No. 2 semicircular ring are fixedly connected by bolts. Two No. 3 air holes are provided on the outer wall of the No. 1 semicircular ring, and the No. 3 air hole passes through the No. 1 semicircular ring and is connected to the corresponding No. 2 air hole. A sealing valve is threadedly connected to the No. 3 air hole.

[0007] In the above-mentioned power cable capable of locating a damaged position, the sealing valve is in a cylindrical structure, sealing rubber rings are fixedly installed at both ends of the outer wall of the sealing valve, and the sealing valve is a one-way valve.

[0008] In the above-mentioned power cable that can locate the damaged position, a number of support strips made of rubber material evenly distributed along the circumference are fixedly installed on the inner wall of the protective layer, a flexible guide rail is fixedly installed on the side wall of the support strip, a sliding block is slidably installed on the flexible guide rail, a support rod is fixedly installed on the side wall of the sliding block, a colored ribbon is fixedly installed between two support rods on the same flexible guide rail, and the outer surface of the colored ribbon is coated with lubricating oil and fluorescent powder.

[0009] In the above-mentioned power cable that can locate the damaged position, a positioning ring is fixedly installed on the side of the two sliding blocks on the same flexible guide rail that are away from each other, and a plurality of plug holes evenly distributed along its circumference are opened on both sides of the fixed base. A C-shaped spring tooth is inserted in the fixed base, one end of the spring tooth extends into the installation groove, and the end of the spring tooth away from the installation groove extends into the plug hole and is inserted in the positioning ring.

[0010] In the above-mentioned power cable capable of locating a damaged position, the inflatable chamber is filled with a plurality of hollow sponge balls.

[0011] In the above-mentioned power cable that can locate the damaged position, an extrusion bag is fixedly installed on the inner wall of the inflation groove, and a spring sheet is filled in the extrusion bag. A telescopic plate is fixedly installed on the outer wall of the extrusion bag. Two spring rods are inserted in the fixed base, and the installation positions of the two spring rods on the same fixed base correspond to the opening positions of the two inflation grooves one by one. One end of the spring rod extends into the corresponding inflation groove and presents an arc-shaped structure. A spring block is inserted on the inner ring wall of the No. 1 semicircular ring, and the installation position of the spring block on the same fixed base corresponds to the installation position of the spring rod one by one. A battery is fixedly installed on the side of the spring block away from the corresponding spring rod. Two symmetrically arranged indicator lights are fixedly installed on the outer surface of the No. 1 semicircular ring, and the installation positions of the two indicator lights on the same No. 1 semicircular ring correspond to the installation positions of the two spring blocks, and the spring block is connected to the corresponding indicator lights.

[0012] Compared with the existing technology, the advantages of the power cable that can locate the damaged position are: the present invention is designed with a protective layer, which can protect the cable body. At the same time, the protective layer can quickly gush out the ribbon after being damaged by cooperating with the inert gas, which is convenient for maintenance personnel to quickly locate. At the same time, when the protective layer is damaged, the air pressure in the inflation chamber will be reduced, and the corresponding indicator light can be turned on through the cooperation of the spring rod and the spring block. By turning on the indicator lights on the two adjacent fixed bases, maintenance personnel can quickly locate the damaged area, further improving the efficiency of locating the damaged position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the fixed base in the present invention.

[0015] Figure 3 It is a schematic cross-sectional structural diagram of the fixed base in the present invention.

[0016] Figure 4 The present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0017] Figure 5 The present invention Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0018] Figure 6 It is a schematic cross-sectional structural diagram of the sealing valve in the present invention.

[0019] Figure 7 It is a schematic diagram of the cross-sectional structure of the protective layer in the present invention.

[0020] Figure 8 The present invention Figure 7 Schematic diagram of the local enlarged structure at point C in the middle.

[0021] Fig. 9 It is a partial cross-sectional structural schematic diagram of the fixed base in the present invention.

[0022] In the figure: 1. cable body; 2. fixed base; 3. protective layer; 4. inflation chamber; 201. installation groove; 202. inflation groove; 203. No. 1 air hole; 204. No. 2 air hole; 5. sealing ring; 501. No. 1 semicircular ring; 502. No. 2 semicircular ring; 503. No. 3 air hole; 504. sealing valve; 505. sealing rubber ring; 301. support bar; 302. flexible guide rail; 303. sliding block; 304. support rod; 305. ribbon; 306. positioning ring; 205. plug-in hole; 206. spring tooth; 401. sponge ball; 6. squeezing bag; 601. spring sheet; 602. telescopic plate; 603. spring rod; 604. spring block; 605. indicator light. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Reference Figure 1-Figure 9 A power cable capable of locating a damaged position comprises a cable body 1, on the outer wall of which are fixedly mounted a plurality of fixed bases 2 of a circular ring structure distributed in a straight line, a protective layer 3 of a circular tubular structure is arranged between two adjacent fixed bases 2 on the same cable body 1, and both ends of the protective layer 3 are respectively fixedly mounted on the side walls of the corresponding fixed bases 2, the protective layer 3 is made of a flexible rubber material, the fixed base 2 is used for fixing and supporting the protective layer 3, and the protective layer 3 is used for protecting the outer surface of the cable body 1.

[0026] A number of support strips 301 made of rubber material uniformly distributed along the circumference are fixedly installed on the inner wall of the protective layer 3, a flexible guide rail 302 is fixedly installed on the side wall of the support strip 301, a sliding block 303 is slidably installed on the flexible guide rail 302, a support rod 304 is fixedly installed on the side wall of the sliding block 303, a colored ribbon 305 is fixedly installed between the two support rods 304 on the same flexible guide rail 302, and the outer surface of the colored ribbon 305 is coated with lubricating oil and fluorescent powder. When the protective layer 3 is ruptured, the inert gas under high pressure will be quickly ejected from the rupture, and the colored ribbon 305 will be driven to gush out from the damaged mouth during the ejection of the inert gas. After gushing out, the colored ribbon 305 will hang down on the outside of the protective layer 3, which is convenient for maintenance personnel to observe and find. The lubricating oil can improve the smoothness of the gush of the colored ribbon 305, and the fluorescent powder can make the colored ribbon 305 be found in time even at night.

[0027] The two sliding blocks 303 on the same flexible guide rail 302 are fixedly installed with a positioning ring 306 on the side away from each other. Both sides of the fixed base 2 are provided with a plurality of plug holes 205 evenly distributed along its circumference. A spring tooth 206 of a C-shaped structure is inserted in the fixed base 2. One end of the spring tooth 206 extends into the installation groove 201, and the end of the spring tooth 206 away from the installation groove 201 extends into the plug hole 205 and is inserted into the positioning ring 306. In the initial state, one end of the spring tooth 206 will extend into the plug hole 205 and be inserted into the positioning ring 306. At this time, the positioning ring 306 in the fixed state will drive the The corresponding sliding block 303 remains fixed, which can prevent the sliding block 303 from moving during the process of winding and laying the cable, causing the colored ribbon 305 to stack, thereby affecting the use effect of the colored ribbon 305. When the sealing ring 5 is fixed in the installation groove 201, the inner ring wall of the No. 1 semicircular ring 501 and the No. 2 semicircular ring 502 will conflict with one end of the spring tooth 206, and the conflicted spring tooth 206 will shrink toward the direction of the cable body 1. The shrunk spring tooth 206 will separate from the positioning ring 306. At this time, the cable body 1 has been installed and maintained in a balanced state as a whole. The sliding block 303 will not move over a large range after being released.

[0028] An air filling chamber 4 is formed between the protective layer 3 and the cable body 1, and an annular mounting groove 201 is provided on the outer ring wall of the fixed base 2. Two air filling grooves 202 arranged opposite to each other are provided in the fixed base 2. A No. 1 air hole 203 is provided on the side away from each other of the two air filling grooves 202 on the same fixed base 2. The No. 1 air hole 203 runs through the fixed base 2 and is connected to the corresponding air filling chamber 4. Inert gas can be filled into the air filling chamber 4 through the air filling groove 202 and the No. 1 air hole 203. The air filling chamber 4 filled with inert gas can prop up the protective layer 3. When the outer surface of the protective layer 3 is damaged, the protective layer 3 in the expanded state will burst, and the exploded protective layer 3 will quickly discharge the inert gas.

[0029] The inner wall of the installation groove 201 is provided with two No. 2 air holes 204, and the No. 2 air holes 204 are connected with the corresponding inflation groove 202. A sealing ring 5 is inserted in the installation groove 201, and the sealing ring 5 is composed of a No. 1 semicircular ring 501 and a No. 2 semicircular ring 502. Both ends of the No. 1 semicircular ring 501 and the No. 2 semicircular ring 502 are fixedly connected by bolts. Two No. 3 air holes 503 are provided on the outer wall of the No. 1 semicircular ring 501, and the No. 3 air holes 503 penetrate the No. 1 semicircular ring 501 is connected with the corresponding No. 2 air hole 204, and the No. 3 air hole 503 is internally threaded with a sealing valve 504. During installation, first fix the sealing ring 5 in the installation groove 201 and align the No. 3 air hole 503 with the No. 2 air hole 204, turn the sealing valve 504 to rotate, and the rotated sealing valve 504 will extend into the inflation groove 202. At this time, the inert gas can be filled into the inflation chamber 4 through the sealing valve 504 through the external inflation device.

[0030] The sealing valve 504 has a cylindrical structure, and sealing rubber rings 505 are fixedly installed at both ends of the outer wall of the sealing valve 504. The sealing valve 504 is a one-way valve. When the sealing valve 504 extends into the inflation groove 202, the sealing rubber ring 505 will be driven to contact the inner walls of the No. 3 air hole 503 and the No. 2 air hole 204. At this time, the sealing rubber ring 505 can have a sealing effect on the No. 3 air hole 503 and the No. 2 air hole 204.

[0031] The air-filled bunker 4 is filled with a number of hollow sponge balls 401. When the protective layer 3 is damaged, the maintenance personnel may not be able to repair it in time. During the waiting process, rainwater or moisture in the air may easily enter the air-filled bunker 4. The sponge balls 401 can absorb the rainwater or moisture in the air that enters the air-filled bunker 4, and at the same time can support the protective layer 3. When the protective layer 3 is repaired, the moisture and water in the air-filled bunker 4 can be discharged through an external ventilation device and the air filling grooves 202 at both ends of the air-filled bunker 4.

[0032] An extrusion bag 6 is fixedly installed on the inner wall of the inflation groove 202, and a spring sheet 601 is filled in the extrusion bag 6. A telescopic plate 602 is fixedly installed on the outer wall of the extrusion bag 6. Two spring rods 603 are inserted in the fixed base 2. The installation positions of the two spring rods 603 on the same fixed base 2 correspond to the opening positions of the two inflation grooves 202. One end of the spring rod 603 extends into the corresponding inflation groove 202 and presents an arc-shaped structure. A spring block 604 is inserted on the inner ring wall of the No. 1 semicircular ring 501. The installation of the spring block 604 on the same fixed base 2 The installation position corresponds to the installation position of the spring rod 603 one by one, the spring block 604 is fixedly installed on the side away from the corresponding spring rod 603, the fixed base 2 is made of insulating material, and a shielding layer is fixedly installed on the inner ring wall of the fixed base 2. The shielding layer can prevent the battery from being affected by the cable during operation. Two symmetrically arranged indicator lights 605 are fixedly installed on the outer surface of the first semicircular ring 501. The installation positions of the two indicator lights 605 on the same first semicircular ring 501 correspond to the installation positions of the two spring blocks 604. The spring blocks 604 and the corresponding indicator lights The light 605 is connected. When the air pressure in the air-filled chamber 4 is too high, the telescopic plate 602 will be squeezed in the reverse direction. The telescopic plate 602 will push the squeezing bag 6 and the spring sheet 601 to shrink. At this time, the telescopic plate 602 and the spring rod 603 are separated. When the protective layer 3 is damaged, the air pressure in the air-filled chamber 4 will drop rapidly. At this time, the elastic force of the spring sheet 601 will cause the telescopic plate 602 to quickly reset. The reset telescopic plate 602 will contact and squeeze the spring rod 603. The squeezed spring rod 603 will move in the specified direction. And it will collide with the corresponding spring block 604. After the spring block 604 is collided, it will drive the battery to contact the indicator light 605. At this time, the indicator light 605 will light up. The damaged area of ​​the cable can be quickly locked by lighting up the indicator lights 605 on two adjacent fixed bases 2. Combined with the surging colored ribbon 305, the maintenance personnel can quickly locate the damaged position on the cable. A limit block is fixedly installed in the inflation groove 202. The limit block can limit the telescopic position of the telescopic plate 602, so that the telescopic plate 602 is just below the spring rod 603 after being released.

[0033] The specific working principle and method of use of the present invention are explained in detail below: when installing the cable, first complete the installation of the cable body 1, then fix the sealing ring 5 in the installation groove 201, and then fill the inert gas into the inflation chamber 4 through an external inflation device. When the protective layer 3 on the outside of the cable body 1 is damaged, the protective layer 3 in the expanded state will burst, and the exploded protective layer 3 will quickly discharge the inert gas. When the protective layer 3 is ruptured, the inert gas in the high-pressure state will quickly spray out from the rupture port. In the process of the inert gas spraying, the colored ribbon 305 will be driven to gush out from the damaged port. After the gush, the colored ribbon 305 will hang on the outside of the protective layer 3, which is convenient for maintenance personnel to observe and find. The lubricating oil can improve the smoothness of the gush of the colored ribbon 305, and the fluorescent powder can make the colored ribbon 305 be found in time at night.

[0034] When the protective layer 3 is damaged, the air pressure in the inflation chamber 4 will drop rapidly. At this time, the elastic force of the spring sheet 601 will quickly reset the telescopic plate 602. The reset telescopic plate 602 will contact and squeeze the spring rod 603. The squeezed spring rod 603 will move in a specified direction and contact the corresponding spring block 604. After the spring block 604 is contacted, it will drive the battery to contact the indicator light 605. At this time, the indicator light 605 will light up. The lighting of the indicator lights 605 on two adjacent fixed bases 2 can quickly lock the damaged area of ​​the cable, and the gushing colored ribbon 305 can enable the maintenance personnel to quickly locate the damaged position on the cable.

[0035] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power cable capable of locating a damaged position, comprising a cable body (1), characterized in that: A plurality of fixed bases (2) of circular ring structure distributed in a straight line are fixedly mounted on the outer wall of the cable body (1); a protective layer (3) of circular tubular structure is arranged between two adjacent fixed bases (2) on the same cable body (1); two ends of the protective layer (3) are respectively fixedly mounted on the side walls of the corresponding fixed bases (2); the protective layer (3) is made of a flexible rubber material; A plurality of support strips (301) made of rubber material are fixedly mounted on the inner wall of the protective layer (3) and are evenly distributed along the circumference thereof; a flexible guide rail (302) is fixedly mounted on the side wall of the support strip (301); a sliding block (303) is slidably mounted on the flexible guide rail (302); a support rod (304) is fixedly mounted on the side wall of the sliding block (303); a color ribbon (305) is fixedly mounted between two support rods (304) on the same flexible guide rail (302); and lubricating oil and fluorescent powder are applied on the outer surface of the color ribbon (305); A positioning ring (306) is fixedly installed on the side of the two sliding blocks (303) on the same flexible guide rail (302) that are away from each other. A plurality of plug holes (205) are evenly distributed along the circumference of the fixed base (2) are opened on both sides. A spring tooth (206) with a C-shaped structure is inserted in the fixed base (2). One end of the spring tooth (206) extends into the installation groove (201). The end of the spring tooth (206) away from the installation groove (201) extends into the plug hole (205) and is inserted in the positioning ring (306).

2. A power cable capable of locating a damaged position according to claim 1, characterized in that: An air filling chamber (4) is formed between the protective layer (3) and the cable body (1); a mounting groove (201) of a circular ring structure is provided on the outer ring wall of the fixed base (2); two air filling grooves (202) arranged opposite to each other are provided in the fixed base (2); a first air hole (203) is provided on the side away from each other of the two air filling grooves (202) on the same fixed base (2); the first air hole (203) passes through the fixed base (2) and is connected to the corresponding air filling chamber (4); two second air holes (204) are provided on the inner wall of the mounting groove (201); the second air holes (204) are provided on the inner wall of the mounting groove (201); 204) is connected with the corresponding inflation groove (202), a sealing ring (5) is inserted in the installation groove (201), and the sealing ring (5) is composed of a No. 1 semicircular ring (501) and a No. 2 semicircular ring (502), both ends of the No. 1 semicircular ring (501) and the No. 2 semicircular ring (502) are fixedly connected by bolts, and two No. 3 air holes (503) are opened on the outer wall of the No. 1 semicircular ring (501), and the No. 3 air holes (503) pass through the No. 1 semicircular ring (501) and are connected with the corresponding No. 2 air holes (204), and the No. 3 air holes (503) are internally threadedly connected with a sealing valve (504).

3. A power cable capable of locating a damaged position according to claim 2, characterized in that: The sealing valve (504) is of cylindrical structure, and sealing rubber rings (505) are fixedly installed at both ends of the outer wall of the sealing valve (504). The sealing valve (504) is a one-way valve.

4. A power cable capable of locating a damaged position according to claim 2, characterized in that: The inflatable chamber (4) is filled with a plurality of hollow sponge balls (401).

5. The power cable capable of locating a damaged position according to claim 2, characterized in that: A squeezing bag (6) is fixedly mounted on the inner wall of the inflation groove (202), and a spring sheet (601) is filled in the squeezing bag (6). A telescopic plate (602) is fixedly mounted on the outer wall of the squeezing bag (6). Two spring rods (603) are inserted into the fixed base (2). The installation positions of the two spring rods (603) on the same fixed base (2) correspond to the opening positions of the two inflation grooves (202). One end of the spring rod (603) extends into the corresponding inflation groove (202) and presents an arc-shaped structure. A spring rod (603) is inserted into the inner ring wall of the No. 1 semicircular ring (501). The spring block (604) has a mounting position on the same fixed base (2) that corresponds to the mounting position of the spring rod (603). A battery is fixedly mounted on a side of the spring block (604) away from the corresponding spring rod (603). Two symmetrically arranged indicator lights (605) are fixedly mounted on the outer surface of the first semicircular ring (501). The mounting positions of the two indicator lights (605) on the same first semicircular ring (501) correspond to the mounting positions of the two spring blocks (604). The spring block (604) is connected to the corresponding indicator lights (605).

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