Power line loss analysis device and method

Abstract

The invention discloses a power line loss analysis device and method, and belongs to the technical field of cable detection, the power line loss analysis device comprises a detection cylinder, the detection cylinder is internally provided with a cavity used for detecting the sunken part of the surface of a cable, and the cavity is filled with iron sand; the left end and the right end of the detection cylinder are in threaded connection with magnetic cylinders used for limiting iron sand. According to the device, a cable penetrates through the whole device from left to right, then an adjusting screw sleeve and a protective sleeve shell are sequentially rotated in the direction of a detection cylinder, a contact plate and iron sand are made to make contact with the surface of the cable, preparation work is completed, and after the preparation work is completed, the cable is pulled or the detection cylinder is pushed to make relative movement between the cable and the detection cylinder; when iron sand appears on the surface of the inner magnetic ring, it is indicated that the surface of the cable is damaged, when pigment marks appear on the surface of the cable, protrusions exist on the surface marks, the problem of the cable can be found out easily and rapidly through the mode, and then the cause of line loss is analyzed.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a power line loss analysis device and method. Background Art

[0002] Power line loss (also called electric energy loss) refers to the amount of electricity that cannot be effectively transmitted to users due to factors such as resistance, equipment efficiency, and the cable itself during the power transmission process, which causes part of the electrical energy to be converted into heat or other forms of energy.

[0003] When analyzing power line losses, it is often necessary to conduct multiple inspections. The most difficult part is to check whether the cable is damaged. Currently, most inspections are done manually with the naked eye. However, manual inspections cannot accurately identify the damage point and are prone to missing the damage point.

[0004] A Chinese patent discloses a cable detection device (publication number CN115808112A). The patent sets a centering structure, and the cable passes through two sleeves coaxially. The driving device drives the two sleeves to move relatively close to or away from each other. The two sleeves drive multiple detection units to operate, which can make the probe of the detection unit close to the cable and can be adjusted according to the diameter of the cable of different specifications. When the short shaft contacts the micro switch, the external alarm unit sends a prompt signal, indicating that the outer skin of the insulation layer of the cable here is abnormally protruding or severely bent. By setting up multiple detection units, the outer wall of the same cross-section of the cable can be detected at the same time, and the abnormal part of the cable can be quickly identified, realizing the detection of cables of different specifications and improving the scope of application of the detection device. However, the patent has the problems of large size and inconvenience in carrying, and the inability to mark the detected damaged points. The detection can only be stopped when it is found, and then manually marked, which is inefficient and has a single detection function. Therefore, the present invention provides a power line loss analysis device and method to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a power line loss analysis device and method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A power line loss analysis device includes a detection cylinder, wherein a chamber for detecting recessed portions of a cable surface is provided inside the detection cylinder, the chamber is filled with iron sand, and both left and right ends of the detection cylinder are threadedly connected to magnetic cylinders for limiting the iron sand. A positioning sleeve for supporting the cable is movably connected inside the magnetic cylinder, and a marking structure is movably connected outside the positioning sleeve to facilitate detection of raised portions of the cable surface. The iron sand and the marking structure can be used to synchronously detect recessed portions and raised portions of the cable, thereby improving detection efficiency.

[0008] As a further solution of the present invention, the magnetic cylinder includes an equipment compartment, an electromagnetic column is fixedly connected to one end of the equipment compartment close to the detection cylinder, a channel is provided in the middle of the electromagnetic column to facilitate the passage of the cable, one end of the equipment compartment is threadedly connected to a side cover, and the other end is fixedly connected to a protective shell, and the protective shell is threadedly connected to the detection cylinder.

[0009] As a further solution of the present invention, two inner cylinders are symmetrically fixedly connected to the inside of the detection cylinder, and the two inner cylinders are fixedly connected to the detection cylinder through connecting plates. The space between the two inner cylinders and the detection cylinder is a chamber for detecting the depressions on the surface of the cable, and the iron sand is located in the chamber, and the ends of the two inner cylinders close to each other are fixedly connected with rubber rings.

[0010] As a further solution of the present invention, two thin steel sheets are movably connected between the two inner cylinders, and a sliding block for controlling the sliding of the thin steel sheets in the inner cylinder is slidably connected to the outer wall of the detection cylinder.

[0011] As a further solution of the present invention, the positioning sleeve includes an adjusting screw sleeve, which is threadedly connected to the equipment bin, and an end port of the adjusting screw sleeve located outside the equipment bin is fixedly connected to an inner magnetic ring, which can adsorb iron sand attached to the cable through the inner magnetic ring, thereby detecting whether the cable is damaged.

[0012] As a further solution of the present invention, the marking structure includes several pressure plates, and several of the pressure plates pass through the adjusting screw sleeve. The ends of the pressure plates located inside the adjusting screw sleeve are rotatably connected to a movable plate, and the end of the movable plate away from the pressure plate is fixedly connected to a contact plate raised on the surface of the sensing cable. In order to push the pressure plate, the end of the magnetic cylinder away from the detection cylinder is fixedly connected to a contact ring.

[0013] As a further solution of the present invention, a liquid storage tube is movably connected between the contact plate and the pressure plate, and pigment is stored inside the liquid storage tube. An extrusion rod with a reset function is slidably connected inside the liquid storage tube, and the extrusion rod is fixedly connected to a piston at one end of the liquid storage tube. Drainage channels are provided inside the piston and the extrusion rod, and a liquid outlet hose is fixedly connected to the end of the extrusion rod away from the piston, and the end of the liquid outlet hose away from the extrusion rod is located at the lower end of the contact plate.

[0014] As a further solution of the present invention, in order to continuously transport pigment into the liquid storage tube, the end of the liquid storage tube away from the extrusion rod is fixedly connected to a drainage tube, and the connection between the drainage tube and the liquid storage tube is also fixedly connected to a one-way valve.

[0015] As a further solution of the present invention, several drainage tubes are connected to a connector through the same hose, a paint box is fixedly connected to the outer wall of the magnetic cylinder, one end of the paint box is fixedly connected to a liquid inlet pipe, and the other end is connected to a discharge pipe, and the end of the discharge pipe away from the paint box is fixedly connected to a docking joint, and the docking joint can be threadedly connected to the connector, thereby transporting the paint in the paint box to the liquid storage tube, and a corrugated sleeve is provided at the end of the paint box close to the detection cylinder, and a support spring is fixedly connected inside the corrugated sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the present invention is used, the cable to be tested is first passed through the entire device from left to right, and then the adjusting screw sleeve is rotated to move it toward the direction of the detection tube. During the movement of the adjusting screw sleeve, the pressure plate will gradually approach the direction of the contact ring. When the contact ring contacts the pressure plate, the contact ring will push the pressure plate. When the pressure plate is pushed, it will drive the movable plate to rotate and thus make the contact plate fit the outer wall of the cable. As the cable moves, when the cable avoids a bulge, the bulge will push the contact plate, so that the contact plate is pushed upward. When the contact plate is pushed upward, it will push the extrusion rod to move into the liquid storage tube. When the extrusion rod moves into the liquid storage tube, the pigment will enter the liquid outlet hose through the drainage channel, and then be smeared on the surface of the cable through the liquid outlet hose, thereby marking the bulges on the cable surface, thereby making it easier for staff to find defects in the cable.

[0018] 2. When the present invention is used, after the contact plate contacts the surface of the cable, the protective sleeve is rotated to move the protective sleeve toward the direction of the detection tube, so that the iron sand in the chamber gathers toward the middle of the detection tube, and then the two thin steel sheets are pulled by the sliding block to be collected into the sliding groove. At this time, the iron sand will directly contact the outer surface of the cable. At this time, the protective sleeve is rotated again to squeeze the iron sand again, making the iron sand more dense, and then the cable is pulled to move slowly. If there is damage on the surface of the cable during the movement, the iron sand will fill the damaged part. As the cable is pulled, the iron sand at the damaged part will be further squeezed into the damaged part by the rubber ring, and the remaining iron sand will be blocked by the rubber ring. As the cable moves, when the damaged part passes through the inner magnetic ring, the iron sand at the damaged part of the cable will be adsorbed to the surface of the inner magnetic ring. By observing the iron sand on the surface of the inner magnetic ring, it can be determined whether there is damage on the cable surface.

[0019] 3. The present invention has the characteristics of simple structure, simple operation, and is easy to carry. It is applicable to various occasions and can detect cables at construction sites, thereby facilitating the analysis of line loss causes through external damage to the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a structural diagram of a power line loss analysis device.

[0021] Figure 2 This is a disassembled diagram of a power line loss analysis device.

[0022] Figure 3 A cross-sectional view of a detection tube in a power line loss analysis device.

[0023] Figure 4 This is a schematic diagram of the disassembled structure of a magnetic cylinder in a power line loss analysis device.

[0024] Figure 5 This is a structural diagram of an adjusting screw sleeve in a power line loss analysis device.

[0025] Figure 6 The figure is a structural diagram of a marking structure in a power line loss analysis device.

[0026] Figure 7 This is a connection diagram of a pressure plate and a movable plate in a power line loss analysis device.

[0027] Figure 8 This is a diagram of the internal structure of a liquid storage tube in a power line loss analysis device.

[0028] Figure 9 A diagram showing the usage status of a rubber ring and cable in a power line loss analysis device.

[0029] In the figure: 1. Detection cylinder; 2. Magnetic cylinder; 3. Positioning sleeve; 4. Marking structure; 100. Inner cylinder; 101. Connecting plate; 102. Sliding groove; 103. Thin steel sheet; 104. Steel ring; 105. Connecting spring; 106. Sliding block; 107. Sliding rail groove; 108. Rubber ring.

[0030] 200, equipment compartment; 201, rotating sleeve; 202, battery; 203, electromagnetic column; 204, protective housing; 205, side cover; 206, contact ring; 207, paint box; 208, corrugated sleeve; 209, drain pipe; 210, liquid inlet pipe; 211, docking joint;

[0031] 300, adjusting screw sleeve; 301, inner magnetic ring; 400, pressure plate; 401, movable plate; 402, shaft; 403, return spring; 404, contact plate; 405, flow hole; 406, liquid storage tube; 407, drainage tube; 408, extrusion rod; 409, piston; 410, drainage channel; 411, liquid outlet hose; 412, one-way valve; 413, mounting plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1 and 2 In an embodiment of the present invention, a power line loss analysis device includes a detection cylinder 1. A chamber for detecting recessed portions of a cable surface is provided inside the detection cylinder 1. The chamber is filled with iron sand. A magnetic cylinder 2 for restricting the iron sand is threadedly connected to both left and right ends of the detection cylinder 1. To facilitate the rotation of the magnetic cylinder 2, a rotating sleeve 201 is fixedly connected to the outside of the magnetic cylinder 2. A positioning sleeve 3 for supporting the cable is movably connected to the inside of the magnetic cylinder 2. In order to facilitate the detection of raised portions on the cable surface, a marking structure 4 is movably connected to the outside of the positioning sleeve 3. The iron sand and the marking structure 4 can be used to synchronously detect recessed portions and raised portions of the cable, thereby improving the detection efficiency.

[0034] Example 1: Please refer to Figure 3-Figure 4, a power line loss analysis device, the magnetic cylinder 2 includes a device compartment 200, a rotating sleeve 201 fixedly sleeved on the outside of the device compartment 200, the inside of the device compartment 200 is fixedly connected to a battery 202, and the inside of the device compartment 200 is also fixedly connected to a control motherboard, and a cable channel is opened in the middle of the device compartment 200, the end of the device compartment 200 close to the detection cylinder 1 is fixedly connected to an electromagnetic column 203, and the middle of the electromagnetic column 203 is provided with a channel for the cable to pass through, specifically, the electromagnetic column 203 includes an iron core, the outer surface of the iron core is wrapped with a A plurality of conductive coils are wound around the device, and the conductive coils are connected to the control mainboard. The electromagnetic column 203 can be controlled by the battery 202 and the control mainboard. The control of the electromagnetic column 203 is the same as the control of the electromagnet in the prior art, and will not be described in detail here. One end of the device compartment 200 is threadedly connected to a side cover 205, and the other end is fixedly connected to a protective shell 204. The interior of the device compartment 200 can be inspected by opening the side cover 205. The protective shell 204 is made of iron material and is threadedly connected to the detection tube 1.

[0035] Two inner cylinders 100 are symmetrically fixedly connected inside the detection cylinder 1. The two inner cylinders 100 are fixedly connected to the detection cylinder 1 through connecting plates 101 respectively, and the length of the connecting plates 101 is less than the length of the inner cylinders 100, thereby preventing the connecting plates 101 from blocking the rotation of the protective sleeve 204. The space between the two inner cylinders 100 and the detection cylinder 1 is a chamber for detecting the depressions on the surface of the cable, and iron sand is located in the chamber. The iron sand is usually composed of fine iron ore particles or iron debris, and the particle size of the iron sand is usually small, but the particles are relatively hard. The chemical properties of the iron sand are relatively stable and not easily corroded or oxidized, so it is suitable for long-term storage and use. The ends of the two inner cylinders 100 that are close to each other are fixedly connected with rubber rings 108. A cable channel is opened in the middle of the rubber ring 108, and the inner diameter of the cable channel is smaller than the outer diameter of the cable, that is, when the cable passes through the rubber ring 1 08, the cable channel will expand, in this way, iron sand can be prevented from entering the inner tube 100, and at the same time, both ends of the rubber ring 108 are chamfered, and the chamfering can prevent the rubber ring 108 from pushing away the iron sand in the crack of the wire. Two thin steel sheets 103 are movably connected between the two inner tubes 100. The thin steel sheet 103 is cylindrical, and a sliding block 106 for controlling the sliding of the thin steel sheet 103 in the inner tube 100 is slidably connected to the outer wall of the detection tube 1. Specifically, a sliding groove 102 is provided inside the inner tube 100, and the thin steel sheet 103 is located in the sliding groove 102. In order to prevent the thin steel sheet 103 from bending during the sliding process, steel rings 104 are fixedly connected at both ends of the thin steel sheet 103, and the thickness of the steel ring 104 is adapted to the sliding groove 102. When the cable passes through the chamber, some iron sand will enter the damaged part of the cable surface;

[0036] More specifically, the connecting plate 101 is internally slidably connected with a connecting spring 105, which is a steel sheet with high flexibility and wear resistance. One end of the connecting spring 105 is fixedly connected to the steel ring 104, and the other end is fixedly connected to the sliding block 106. More specifically, the interiors of the connecting plate 101 and the detection cylinder 1 are both provided with connecting grooves for the connecting spring 105 to slide, and the connecting grooves are connected to the sliding grooves 102, and the connecting spring 105 is fixedly connected to the steel ring 104 located in the sliding grooves 102. A sliding rail groove 107 is provided on the outer wall of the detection cylinder 1, and the sliding block 106 is located in the sliding rail groove 107, and the sliding block 106 can slide in the sliding rail groove 107.

[0037] Example 2: Please refer to Figure 4-Figure 9 A power line loss analysis device, wherein the positioning sleeve 3 includes an adjusting screw sleeve 300, which is threadedly connected to the equipment compartment 200, and the axis of the adjusting screw sleeve 300 is aligned with the center of the cable channel in the equipment compartment 200. An inner magnetic ring 301 is fixedly connected to one end of the adjusting screw sleeve 300 located outside the equipment compartment 200. The inner magnetic ring 301 can absorb iron sand attached to the cable, thereby detecting whether the cable is damaged.

[0038] The marking structure 4 includes a plurality of pressure plates 400, and the plurality of pressure plates 400 are all through the adjusting screw sleeve 300, and a plurality of connection windows are opened on the outer wall of the adjusting screw sleeve 300, and the pressure plates 400 pass through the adjusting screw sleeve 300 through the connection windows. One end of the pressure plate 400 located inside the adjusting screw sleeve 300 is rotatably connected with a movable plate 401. Specifically, the movable plate 401 and the pressure plate 400 are rotatably connected through a shaft 402, and a reset torsion spring is provided on the outer sleeve of the shaft 402, which facilitates the movable plate 401 to be reset after rotation. The pressure plate 400 and the movable plate 401 are in the same position, and the inclination between the pressure plate 400 and the movable plate 401 is 125 degrees. The end of the movable plate 401 away from the pressure plate 400 is fixedly connected to a contact plate 404 protruding from the surface of the sensing cable. In order to facilitate the cable to pass through the lower end of the contact plate 404, the left and right ends of the contact plate 404 are chamfered to prevent the contact plate 404 from affecting the movement of the cable. In order to push the pressure plate 400, the end of the magnetic cylinder 2 away from the detection cylinder 1 is fixedly connected to a contact ring 206, and the contact ring 206 is fixed to the outside of the side cover 205.

[0039] A liquid storage tube 406 is movably connected between the contact plate 404 and the pressure plate 400. The liquid storage tube 406 stores pigment inside. The pigment is acrylic pigment, and acrylic pigment is a modern synthetic pigment widely used in artistic creation, decoration and other hand-made fields. Acrylic pigment uses water as a solvent and dries quickly after volatilization. The viscosity can be freely adjusted by adding water or acrylic medium (such as a flow agent or a thickener). The interior of the liquid storage tube 406 is slidably connected to an extrusion rod 408 with a reset function. The extrusion rod 408 is located at one end of the liquid storage tube 406 and is fixedly connected to a movable A drainage channel 410 is provided inside the plug 409, the piston 409 and the extrusion rod 408, and a liquid outlet hose 411 is fixedly connected to the end of the extrusion rod 408 away from the piston 409. The end of the liquid outlet hose 411 away from the extrusion rod 408 is located at the lower end of the contact plate 404. Specifically, a circulation hole 405 is provided at the lower end of the contact plate 404, and the end of the liquid outlet hose 411 away from the extrusion rod 408 is located in the circulation hole 405. More specifically, since the pigment has a certain viscosity, the pigment will not automatically flow out of the drainage channel 410 under the action of the surface tension of the liquid.

[0040] Specifically, the end of the extrusion rod 408 away from the piston 409 is rotatably connected to the contact plate 404, and the liquid storage tube 406 is rotatably connected to the pressure plate 400. More specifically, the upper end of the contact plate 404 is fixedly connected to the mounting plate 413, the extrusion rod 408 is rotatably connected to the mounting plate 413 via a rotating shaft, and a return spring 403 is sleeved on the outer surface of the extrusion rod 408. More specifically, a rectangular window is opened on the surface of the pressure plate 400, and the liquid storage tube 406 passes through the pressure plate 400 through the rectangular window, and the liquid storage tube 406 is rotatably connected to the pressure plate 400 via a rotating shaft.

[0041] In order to continuously transport paint into the liquid storage tube 406, the end of the liquid storage tube 406 away from the squeezing rod 408 is fixedly connected to the drainage tube 407, and the connection between the drainage tube 407 and the liquid storage tube 406 is also fixedly connected to a one-way valve 412. Specifically, the one-way valve 412 between the liquid storage tube 406 and the drainage tube 407 only allows paint to enter the liquid storage tube 406. Several drainage tubes 407 are connected to a connector through the same hose. The outer wall of the magnetic cylinder 2 is fixedly connected to the paint box 207. Specifically, the paint box 207 is fixedly connected to the outer wall of the equipment compartment 200. One end of the paint box 207 is fixedly connected to the liquid inlet pipe 210, and the other end is connected to the discharge pipe 209. The end of the discharge pipe 209 away from the paint box 207 is fixedly connected to the docking joint 211, which can be threadedly connected to the connector to thereby transport the paint in the paint box 207 to the liquid storage tube 406.

[0042] A bellows sleeve 208 is provided at one end of the pigment box 207 close to the detection tube 1, and a support spring is fixedly connected inside the bellows sleeve 208. The bellows sleeve 208 is made of rubber material, which has significant characteristics such as elasticity, flexibility and durability. It can quickly return to its original shape after being deformed by force and can withstand long-term friction.

[0043] Example 3: Based on Examples 1 and 2, a method for analyzing power line loss includes the following steps:

[0044] S1: Pass the cable through the entire device from left to right, then turn the adjusting screw sleeve 300 and the protective sleeve 204 in the direction of the detection tube 1 in sequence, so that the contact plate 404 and the iron sand are in contact with the cable surface respectively, completing the preparation work;

[0045] S2: After the preparation is completed, pull the cable or push the detection cylinder 1 to generate relative movement between the cable and the detection cylinder 1 to perform the detection operation;

[0046] S3: When iron sand appears on the surface of the inner magnetic ring 301, it indicates that the cable surface is damaged. When pigment marks appear on the cable surface, there are protrusions at the surface marks. This method can quickly and easily identify cable problems and analyze the cause of line loss.

[0047] The working principle of the present invention is:

[0048] When the present invention is used, the cable to be tested is first passed through the left positioning sleeve 3, the detection tube 1 and the right positioning sleeve 3 from left to right in sequence, and then the adjusting screw sleeve 300 is rotated to move it in the direction of the detection tube 1. During the movement of the adjusting screw sleeve 300, the pressure plate 400 will gradually approach the direction of the contact ring 206. When the contact ring 206 contacts the pressure plate 400, the contact ring 206 will push the pressure plate 400. When the pressure plate 400 is pushed, it will drive the movable plate 401 to rotate and thus make the contact plate 404 fit the outer wall of the cable. After the contact plate 404 fits the cable, the contact plate 404 can be used to sense the raised point on the surface of the cable, thereby facilitating the marking of the raised point. After the contact plate 404 contacts the surface of the cable, the connector can be docked with the docking head 211.

[0049] After the contact plate 404 contacts the cable surface, the protective sleeve 204 is rotated to move toward the detection tube 1. When the protective sleeve 204 moves toward the detection tube 1, the corrugated sleeve 208 is squeezed, causing the pigment to enter the liquid storage tube 206 (it is worth noting that the pigment box 207 is not full of pigment). At the same time, the protective sleeve 204 pushes the iron sand in the chamber to gather toward the middle of the detection tube 1. When the two protective sleeves 204 can no longer rotate, it means that the iron sand is very dense in the detection tube 1.

[0050] Then, the two thin steel sheets 103 are pulled into the sliding groove 102 by the sliding block 106. At this time, the iron sand will directly contact the outer surface of the cable. At this time, the protective cover 204 is rotated to squeeze the iron sand again, thereby making the iron sand more dense (it is worth noting that when using the protective cover 204 to push the iron sand, it is necessary to ensure that the cable can still move when being pulled). Then the cable is pulled to make it move slowly. If there is damage on the surface of the cable during the movement, the iron sand will fill the damaged area. As the cable is pulled, the iron sand at the damaged area will be further squeezed into the damaged area by the rubber ring 108, and the remaining iron sand will be blocked by the rubber ring 108 (for details, please refer to Figure 9 );

[0051] As the cable moves, when the damaged part passes through the inner magnetic ring 301, the iron sand at the damaged part of the cable will be absorbed to the surface of the inner magnetic ring 301. By observing the iron sand on the surface of the inner magnetic ring 301, it can be determined whether the cable surface is damaged (it is worth noting that even if a small amount of iron sand exists on the undamaged part of the cable surface, it will not affect the detection structure, because the cable needs to pass through the rubber ring 108, and the iron sand on the cable surface will be cleaned when passing through the rubber ring 108. However, due to the depression at the damaged part, the iron sand in the depression will not be scraped off by the rubber ring 108. Therefore, the amount of iron sand at the damaged part must be greater than that in the undamaged area. When the damaged area of the cable passes through the inner magnetic ring 301, the iron sand at the damaged part will be absorbed together, leaving a small pile of iron sand on the inner magnetic ring 301, which is very obvious).

[0052] Moreover, as the cable moves, when the cable avoids a bulge, the bulge pushes the contact plate 404, causing the contact plate 404 to be pushed upward. When the contact plate 404 is pushed upward, it pushes the squeezing rod 408 to move into the liquid storage tube 206. When the squeezing rod 408 moves into the liquid storage tube 206, the pigment enters the liquid outlet hose 411 through the drainage channel 410, and then is smeared on the surface of the cable through the liquid outlet hose 411, thereby marking the bulge on the cable surface, thereby making it easier for workers to find defects in the cable.

[0053] When it is necessary to accurately detect whether there is damage on the cable surface, the cable can be energized. When the cable is energized, it will generate magnetism, which will absorb iron sand, causing more iron sand to gather at the damaged area. Even small damaged points will be filled with iron sand. In this way, it is possible to more accurately detect whether there is damage on the cable surface.

[0054] After use, the cable is separated from the detection tube 1 and iron sand will fall into the detection tube 1. Then the iron sand is collected and a protective cover 204 is unscrewed. The sliding block 106 is pushed to reset the thin steel sheet 103. Then the iron sand is poured back into the space between the detection tube 1 and the inner tube 100. The protective cover 204 is screwed on again and the electromagnetic column 203 is turned on to generate magnetism. The magnetic force generated by the electromagnetic column 203 is then used to adsorb the iron sand, thereby preventing the iron sand from shaking in the detection tube 1. Finally, the adjusting screw sleeve 300 is turned to reset the pressure plates 400.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A power line loss analysis device, comprising a detection tube (1), characterized in that: The detection cylinder (1) has a chamber for detecting recessed portions on the cable surface, the chamber is filled with iron sand, and both left and right ends of the detection cylinder (1) are threadedly connected to magnetic cylinders (2) for limiting the iron sand. The interior of the magnetic cylinder (2) is movably connected to a positioning sleeve (3) for supporting the cable, and in order to facilitate detection of raised portions on the cable surface, the exterior of the positioning sleeve (3) is movably connected to a marking structure (4). The recessed portions and raised portions of the cable can be detected synchronously by means of the iron sand and the marking structure (4), thereby improving detection efficiency.

2. The power line loss analysis device according to claim 1, characterized in that: The magnetic cylinder (2) comprises an equipment compartment (200), one end of the equipment compartment (200) close to the detection cylinder (1) is fixedly connected to an electromagnetic column (203), a central portion of the electromagnetic column (203) is provided with a passage for facilitating the passage of a cable, one end of the equipment compartment (200) is threadedly connected to a side cover (205), and the other end is fixedly connected to a protective shell (204), and the protective shell (204) is threadedly connected to the detection cylinder (1).

3. The power line loss analysis device according to claim 1, characterized in that: Two inner cylinders (100) are symmetrically and fixedly connected inside the detection cylinder (1), and the two inner cylinders (100) are respectively fixedly connected to the detection cylinder (1) through a connecting plate (101). The space between the two inner cylinders (100) and the detection cylinder (1) is a chamber for detecting recessed areas on the cable surface, and the iron sand is located in the chamber. The ends of the two inner cylinders (100) that are close to each other are fixedly connected to a rubber ring (108).

4. The power line loss analysis device according to claim 3, characterized in that: Two thin steel sheets (103) are movably connected between the two inner cylinders (100), and a sliding block (106) for controlling the thin steel sheets (103) to slide in the inner cylinder (100) is slidably connected to the outer wall of the detection cylinder (1).

5. The power line loss analysis device according to claim 1, characterized in that: The positioning sleeve (3) comprises an adjusting screw sleeve (300), the adjusting screw sleeve (300) is threadedly connected to the equipment compartment (200), and an end of the adjusting screw sleeve (300) located outside the equipment compartment (200) is fixedly connected to an inner magnetic ring (301), and the inner magnetic ring (301) can be used to absorb iron sand attached to the cable, thereby detecting whether the cable is damaged.

6. The power line loss analysis device according to claim 1, characterized in that: The marking structure (4) includes a plurality of pressure plates (400), and the plurality of pressure plates (400) all penetrate the adjusting screw sleeve (300). One end of the pressure plate (400) located inside the adjusting screw sleeve (300) is rotatably connected to a movable plate (401), and one end of the movable plate (401) away from the pressure plate (400) is fixedly connected to a contact plate (404) protruding from the surface of the sensing cable. In order to push the pressure plate (400), one end of the magnetic cylinder (2) away from the detection cylinder (1) is fixedly connected to a contact ring (206).

7. The power line loss analysis device according to claim 6, characterized in that: A liquid storage tube (406) is movably connected between the contact plate (404) and the pressure plate (400), wherein pigment is stored in the liquid storage tube (406), and an extrusion rod (408) with a reset function is slidably connected to the interior of the liquid storage tube (406), and one end of the extrusion rod (408) located in the liquid storage tube (406) is fixedly connected to a piston (409), and drainage channels (410) are provided in the interiors of the piston (409) and the extrusion rod (408), and an end of the extrusion rod (408) away from the piston (409) is fixedly connected to a liquid outlet hose (411), and the end of the liquid outlet hose (411) away from the extrusion rod (408) is located at the lower end of the contact plate (404).

8. The power line loss analysis device according to claim 7, characterized in that: In order to continuously transport the pigment into the liquid storage tube (406), one end of the liquid storage tube (406) away from the squeezing rod (408) is fixedly connected to a drainage tube (407), and a one-way valve (412) is also fixedly connected to the connection between the drainage tube (407) and the liquid storage tube (406).

9. The power line loss analysis device according to claim 8, characterized in that: A plurality of drainage tubes (407) are connected to a connector through a common hose. A paint box (207) is fixedly connected to the outer wall of the magnetic cylinder (2). One end of the paint box (207) is fixedly connected to a liquid inlet pipe (210), and the other end is connected to a liquid discharge pipe (209). An end of the liquid discharge pipe (209) away from the paint box (207) is fixedly connected to a docking joint (211). The docking joint (211) can be threadedly connected to the connector to transport the paint in the paint box (207) to the liquid storage pipe (406). A corrugated sleeve (208) is provided at one end of the paint box (207) close to the detection cylinder (1), and a supporting spring is fixedly connected inside the corrugated sleeve (208).

10. A power line loss analysis method, used in a power line loss analysis device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Pass the cable through the entire device from left to right, then turn the adjusting screw sleeve (300) and the protective sleeve (204) in the direction of the detection tube (1) in sequence, so that the contact plate (404) and the iron sand are in contact with the surface of the cable, respectively, to complete the preparation work; S2: After the preparation work is completed, the cable is pulled or the detection cylinder (1) is pushed to generate relative movement between the cable and the detection cylinder (1) to perform the detection operation; S3: When iron sand appears on the surface of the inner magnetic ring (301), it indicates that the cable surface is damaged. When pigment marks appear on the cable surface, it indicates that there are bulges at the surface marks. In this way, the problem of the cable can be easily and quickly found, and the cause of the line loss can be analyzed.

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