High-voltage cable fault positioning device

Abstract

The invention belongs to the technical field of cable fault detection equipment, and particularly discloses a high-voltage cable fault positioning device which comprises a mounting frame and two connecting shells, the two connecting shells are symmetrically arranged and are in a semi-cylindrical shape, the two connecting shells are arranged on the inner side of the mounting frame, a solar module is arranged at the top of the upper connecting shell, and the solar module is arranged on the inner side of the mounting frame. The bottom of the lower connecting shell is fixedly connected with a balancing weight, and the inner side of the mounting frame is provided with a scraping strip used for cleaning the surface of the solar module. According to the device, the detection module is arranged, so that the device can automatically move along the cable, real-time temperature monitoring is carried out on the whole cable through the thermal infrared imager, and once an abnormal heating point caused by a fault is found, accurate position information can be remotely reported through the built-in GPS and the wireless communication module; therefore, the inspection efficiency and the accuracy and timeliness of fault positioning are greatly improved, and the detection effect is effectively improved.

Description

Technical Field

[0001] This invention belongs to the technical field of cable fault detection equipment, and specifically discloses a high-voltage cable fault location device. Background Technology

[0002] As a key piece of equipment for power transmission, the operating status of high-voltage cables is directly related to the stability and safety of the power grid. However, due to long-term exposure to a complex and ever-changing natural environment, high-voltage cables are susceptible to various factors such as severe weather, mechanical stress, material aging, and external damage, leading to faults such as local overheating and insulation damage.

[0003] Currently, traditional methods for fault detection and location in high-voltage cables mainly rely on manual inspections or fixed monitoring equipment. While manual inspections are flexible, they suffer from low efficiency, limited coverage, and are greatly constrained by terrain and weather conditions, and real-time monitoring is difficult to achieve. Existing fixed monitoring devices are often limited in installation location, unable to fully cover the entire cable line, and lack sufficient response capability to sudden faults or hidden defects.

[0004] Therefore, those skilled in the art have proposed a high-voltage cable fault location device to solve the problems mentioned above. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose a high-voltage cable fault location device to solve the problem that the existing technology cannot detect faults in a timely manner by using a fixed method.

[0006] To achieve the above objectives, the present invention provides a high-voltage cable fault location device, including a mounting frame and two connecting shells. The two connecting shells are symmetrically arranged and are semi-cylindrical in shape. The two connecting shells are located inside the mounting frame. A solar module is arranged on the top of the upper connecting shell, and a counterweight is fixedly connected to the bottom of the lower connecting shell. A scraper for cleaning the surface of the solar module is provided on the inner side of the mounting frame. The two connecting shells are joined together to form a sleeve, and a detection module is provided on the surface of the sleeve. The detection module includes two mounting blocks that are fixedly connected to opposite sides of the two connecting shells and are symmetrically distributed. An infrared thermal imager is provided on the surface of the mounting block. Two rollers are provided on the inner side of each of the two connecting shells. A motor is provided on the surface of one of the lower rollers. The output shaft of the motor is fixedly connected to a drive shaft. The other end of the drive shaft passes through the adjacent roller and is provided with an auxiliary mechanism. The surface of the lower roller is provided with evenly distributed friction strips.

[0007] In the above technical solution, preferably, the auxiliary mechanism includes a rotating shaft disposed inside the connecting shell below, both ends of the rotating shaft are fixedly connected to a turntable that is rotatably connected to the inner wall of the connecting shell, and a drive plate is fixedly connected to the surface of the turntable.

[0008] In the above technical solution, preferably, a transmission mechanism is provided on the inner side of the connecting shell below. One end of the transmission mechanism is fixedly connected to one end of the drive shaft, and the other end of the transmission mechanism is fixedly connected to the central shaft of another roller. Both the surface of the transmission mechanism and the surface of the rotating shaft are provided with bevel gears, and the two bevel gears mesh with each other.

[0009] In the above technical solution, preferably, both ends of the connecting shell are provided with docking shells, a rotating half-ring is fixedly connected to the side of the docking shell near the connecting shell, the other end of the rotating half-ring is slidably connected to the surface of the connecting shell, and both ends of the rotating half-ring are flush with the upper surface of the connecting shell, and uniformly distributed scrapers are fixedly connected to the surface of the docking shell.

[0010] In the above technical solution, preferably, a trigger rod is fixedly connected to the surface of the rotating semi-ring, and the other end of the trigger rod passes through the docking shell and extends into the interior of the docking shell.

[0011] In the above technical solution, preferably, the connecting shell has a connecting cavity inside, the docking shell has an exhaust cavity inside, the surface of the docking shell is provided with a connecting pipe that communicates with the exhaust cavity, the other end of the connecting pipe is connected with the connecting cavity, and a one-way valve is provided inside the connecting pipe. The surface of the docking shell has an air inlet hole, the surface of the rotating half-ring has a through hole that communicates with the connecting cavity, and the connecting cavity is connected to the air inlet hole through the through hole.

[0012] In the above technical solution, preferably, the surface of the docking shell is provided with uniformly distributed exhaust pipes, one end of the exhaust pipes is connected to the connecting cavity, a connecting ring is fixedly connected to the inner wall of the exhaust pipes, a baffle is provided on the side of the connecting ring away from the docking shell, the baffle blocks the central hole of the connecting ring, both sides of the baffle are rotatably connected to the surface of the connecting ring, and a spring is fixedly connected to both sides of the baffle, the other end of the spring is fixedly connected to the surface of the connecting ring.

[0013] In the above technical solution, preferably, a slide rod is fixedly connected to the surface of the trigger rod, the other end of the slide rod penetrates into the interior of the connecting cavity and is fixedly connected to a pressing block that is slidably connected to the inner wall of the connecting cavity, a spring is sleeved on the surface of the slide rod, one end of the spring is fixedly connected to the surface of the trigger rod, and the other end of the spring is fixedly connected to the inner wall of the connecting shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a detection module, the device can move autonomously along the cable and monitor the temperature of the entire cable in real time using an infrared thermal imager. Once an abnormal heat point caused by a fault is detected, the device can remotely report the precise location information through the built-in GPS and wireless communication module, thereby greatly improving the efficiency of inspection and the accuracy and timeliness of fault location, and effectively improving the detection effect. 2. By incorporating an auxiliary mechanism, this device can automatically rotate the scraper and spray air during movement, effectively removing dirt, snow, or ice from the cable surface. This function not only ensures that infrared detection is not interfered with by debris, improving the reliability of the detection results, but also actively removes ice and snow, preventing potential safety hazards. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the connection between the connecting shell and the solar module of the present invention; Figure 3 This is a schematic diagram of the mounting bracket of the present invention; Figure 4 This is a cross-sectional schematic diagram of the connecting shell of the present invention; Figure 5 This is a schematic diagram showing the connection between the roller, motor, and transmission mechanism of the present invention; Figure 6 This is a schematic diagram showing the connection between the docking shell and the connecting shell of the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the docking shell of the present invention; Figure 8 for Figure 7 Enlarged view of A in the middle; Figure 9 This is a schematic diagram of the exhaust pipe structure of the present invention; Figure 10 This is a schematic diagram showing the connection of the slide bar, spring, and compression block of the present invention.

[0016] In the diagram: 1. Mounting frame; 101. Scraper; 2. Connecting shell; 201. Solar module; 202. Counterweight; 3. Detection module; 301. Roller; 302. Infrared thermal imager; 303. Mounting block; 304. Friction strip; 305. Motor; 31. Auxiliary mechanism; 3101. Transmission mechanism; 3102. Rotating shaft; 3103. Bevel gear; 3104. Drive plate; 3105. Turntable; 3106. Docking shell; 3107. Scraper; 3108. Spring; 3109. Connecting cavity; 3110. Connecting pipe; 3111. Rotating half ring; 3112. Air inlet; 3113. Exhaust pipe; 3114. Baffle; 3115. Spring; 3116. Connecting ring; 3117. Trigger rod; 3118. Slide rod; 3119. Extrusion block. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0019] like Figures 1-10 The high-voltage cable fault location device shown includes a mounting frame 1 and two connecting shells 2. The two connecting shells 2 are symmetrically arranged and are semi-cylindrical. The two connecting shells 2 are located inside the mounting frame 1. A solar module 201 is installed on the top of the upper connecting shell 2, and a counterweight 202 is fixedly connected to the bottom of the lower connecting shell 2. A scraper 101 for cleaning the surface of the solar module 201 is provided inside the mounting frame 1. The two connecting shells 2 are joined together to form a sleeve, and a detection module 3 is provided on the surface of the sleeve. The detection module 3 includes two mounting blocks 303 that are fixedly connected to opposite sides of the two connecting shells 2 and are symmetrically distributed. An infrared thermal imager 302 is provided on the surface of the mounting block 303. Two rollers 301 are provided on the inner side of each of the two connecting shells 2. A motor 305 is provided on the surface of one of the lower rollers 301. The output shaft of the motor 305 is fixedly connected to a drive shaft. The other end of the drive shaft passes through the adjacent roller 301 and is provided with an auxiliary mechanism 31. The surface of the lower roller 301 is provided with evenly distributed friction strips 304.

[0020] Specifically, the upper connecting shell 2 is equipped with a controller and a battery. The solar module 201 converts light energy into electrical energy and stores it in the battery to power the controller and the infrared thermal imager 302. The controller is equipped with a wireless transmission module and a GPS module, which can transmit the corresponding GPS location to a remote terminal after detecting a fault point. Furthermore, the battery can also be wirelessly powered, and the module for wirelessly powering the battery can be mounted inside the mounting frame 1, which will not put too much load on the device. The mounting frame 1 is mounted on the cable, and the connection shell 2, solar module 201 and detection module 3 are normally located inside the mounting frame 1, providing them with a good storage environment. After the two connecting shells 2 are docked, the upper and lower rollers 301 can clamp the surface of the cable. During operation, the motor 305 can drive the drive shaft connected to it to rotate, which in turn drives the rollers 301 connected to it to rotate and move along the surface of the cable. During this process, the infrared thermal imager 302 can detect it. The location of the fault will be caused by abnormal heat due to the fault. After the infrared thermal imager 302 detects the abnormal location, it transmits the signal to the remote terminal through the controller to realize the location of the fault point.

[0021] like Figures 1-10 As shown, the auxiliary mechanism 31 includes a rotating shaft 3102 disposed inside the lower connecting shell 2. Both ends of the rotating shaft 3102 are fixedly connected to a turntable 3105 that is rotatably connected to the inner wall of the connecting shell 2. A drive plate 3104 is fixedly connected to the surface of the turntable 3105.

[0022] A transmission mechanism 3101 is provided on the inner side of the lower connecting shell 2. One end of the transmission mechanism 3101 is fixedly connected to one end of the drive shaft, and the other end of the transmission mechanism 3101 is fixedly connected to the central shaft of another roller 301. Both the surface of the transmission mechanism 3101 and the surface of the rotating shaft 3102 are provided with bevel gears 3103, and the two bevel gears 3103 mesh with each other.

[0023] Both ends of the connecting shell 2 are provided with a mating shell 3106. A rotating half-ring 3111 is fixedly connected to the side of the mating shell 3106 near the connecting shell 2. The other end of the rotating half-ring 3111 is slidably connected to the surface of the connecting shell 2. Both ends of the rotating half-ring 3111 are flush with the upper surface of the connecting shell 2. The surface of the mating shell 3106 is fixedly connected with uniformly distributed scrapers 3107.

[0024] A trigger rod 3117 is fixedly connected to the surface of the rotating half ring 3111. The other end of the trigger rod 3117 passes through the docking shell 3106 and extends into the interior of the docking shell 3106.

[0025] Specifically, the transmission mechanism 3101 is a relatively mature component in existing technology applications. It consists of two transmission wheels and a transmission belt. By driving one of the transmission wheels to rotate, the other transmission wheel can be driven to rotate under the action of the transmission belt. In this device, through the action of the transmission mechanism 3101, one of the rollers 301 below can be driven to rotate by the motor 305, which can drive the other roller 301 connected to the transmission mechanism 3101 to rotate synchronously. The friction strip 304 is used to increase the friction with the cable surface, so that the rotation of the roller 301 can move along the cable surface, thereby changing the position of the device to facilitate better detection of the cable surface. When the transmission mechanism 3101 is driven by the motor 305, it can drive the bevel gear 3103 connected to it to rotate. Then, under the meshing action of the two bevel gears 3103, it can drive the rotating shaft 3102 to rotate, thereby driving the turntable 3105 to rotate synchronously. And during the rotation of the turntable 3105, it can drive the drive plate 3104 to rotate synchronously.

[0026] like Figures 1-10 As shown, the connecting shell 2 has a connecting cavity 3109 inside, the docking shell 3106 has an exhaust cavity inside, the surface of the docking shell 3106 is provided with a connecting pipe 3110 that communicates with the exhaust cavity, the other end of the connecting pipe 3110 is connected to the connecting cavity 3109, and a one-way valve is provided inside the connecting pipe 3110. The surface of the docking shell 3106 has an air inlet 3112, and the surface of the rotating half ring 3111 has a through hole that communicates with the connecting cavity 3109. The connecting cavity 3109 is connected to the air inlet 3112 through the through hole.

[0027] The connecting pipe 3110 is made of flexible hose, so bending will not affect its use. The one-way valve is located inside the part of the connecting pipe 3110 that extends into the connecting shell 2.

[0028] The surface of the docking shell 3106 is provided with evenly distributed exhaust pipes 3113. One end of the exhaust pipe 3113 is connected to the connecting cavity 3109. A connecting ring 3116 is fixedly connected to the inner wall of the exhaust pipe 3113. A baffle 3114 is provided on the side of the connecting ring 3116 away from the docking shell 3106. The baffle 3114 covers the central hole of the connecting ring 3116. Both sides of the baffle 3114 are rotatably connected to the surface of the connecting ring 3116. A spring 3115 is fixedly connected to both sides of the baffle 3114. The other end of the spring 3115 is fixedly connected to the surface of the connecting ring 3116.

[0029] A slide rod 3118 is fixedly connected to the surface of the trigger rod 3117. The other end of the slide rod 3118 extends into the interior of the connecting cavity 3109 and is fixedly connected to a pressing block 3119 that slides and connects to the inner wall of the connecting cavity 3109. A spring 3108 is sleeved on the surface of the slide rod 3118. One end of the spring 3108 is fixedly connected to the surface of the trigger rod 3117, and the other end of the spring 3108 is fixedly connected to the inner wall of the connecting shell 2.

[0030] During the rotation of the drive plate 3104 driven by the turntable 3105, the drive plate 3104 can push the trigger rod 3117 to rotate around the center of the two docking shells 3106 after docking. This causes the connected rotating half-ring 3111 and the docking shell 3106 to rotate synchronously. During this process, the trigger rod 3117 can compress the spring 3108. The rotation of the lower rotating half-ring 3111 and the docking shell 3106 can also push the upper docking shell 3106 to rotate synchronously. When the trigger rod 3117 separates from the drive plate 3104, it can drive the docking shell 3106 to rotate synchronously under the action of the spring 3108. The rotating half-ring 3111 and the docking shell 3106 connected to it are synchronously reset. During the reset process, the docking shell 3106 on the upper connecting shell 2 can be pushed to rotate synchronously and reset. During this process, the scraper 3107 can be driven to rotate synchronously. Thus, during the movement of the connecting shell 2, the rotation of the docking shell 3106 is used to clean the dirt adhering to the cable, so as to avoid the surface dirt from affecting the detection effect of the infrared thermal imager 302. In snowy weather, the rotating scraper 3107, together with the docking shell 3106, can push out the ice and snow accumulated on the cable surface, so as to avoid the snow from affecting the cable. Simultaneously, during the movement of the trigger rod 3117, it can drive the slide rod 3118 to rotate synchronously, thereby pushing the extrusion block 3119 to extrude the air stored in the connecting cavity 3109. This allows the air to be introduced into the exhaust cavity through the connecting pipe 3110, and finally into the exhaust pipe 3113. During this process, the air can pass through the central hole of the connecting ring 3116 and push the upper end of the baffle 3114 to rotate and retract the spring 3115, no longer blocking the central hole of the connecting ring 3116. This allows the gas to be discharged through the exhaust pipe 3113, thereby blowing away the dust adhering to the cable surface during the movement of the device and improving the cleaning effect. In snowy weather, the blowing of the airflow, together with the scraper 3107 and the docking shell 3106, can effectively clean the snow. After the trigger rod 3117 is reset, a negative pressure is formed inside the connecting cavity 3109, which allows outside air to be introduced into the connecting cavity 3109 for storage through the air inlet 3112 and the through hole.

[0031] Working principle: After the two connecting shells 2 are docked, the upper and lower rollers 301 can clamp the surface of the cable. During operation, the starting motor 305 drives the drive shaft connected to it to rotate, which in turn drives the rollers 301 to rotate and move along the surface of the cable. During this process, the infrared thermal imager 302 can detect the fault. The location of the fault will be caused by abnormal heat. After the infrared thermal imager 302 detects the abnormal location, it transmits the signal to the remote terminal through the controller to realize the location of the fault point. During the movement of the device, the rotation of the docking shell 3106 is used to clean the dirt adhering to the cable, so as to avoid the surface dirt from affecting the detection effect of the infrared thermal imager 302. In icy and snowy weather, the rotating scraper 3107, together with the docking shell 3106, can push out the ice and snow accumulated on the surface of the cable, so as to avoid the snow from affecting the cable.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A high-voltage cable fault location device, comprising a mounting frame (1) and two connecting shells (2), characterized in that, The two connecting shells (2) are symmetrically arranged and are semi-cylindrical. The two connecting shells (2) are located inside the mounting frame (1). A solar module (201) is provided on the top of the upper connecting shell (2), and a counterweight (202) is fixedly connected to the bottom of the lower connecting shell (2). A scraper (101) for cleaning the surface of the solar module (201) is provided inside the mounting frame (1). The two connecting shells (2) are joined together to form a sleeve. A detection module (3) is provided on the surface of the sleeve. The detection module (3) includes two mounting blocks (303) that are fixedly connected to opposite sides of the two connecting shells (2) and are symmetrically distributed. An infrared thermal imager (302) is provided on the surface of the mounting block (303). Two rollers (301) are provided on the inner side of each of the two connecting shells (2). A motor (305) is provided on the surface of one of the lower rollers (301). The output shaft of the motor (305) is fixedly connected to a drive shaft. The other end of the drive shaft passes through the adjacent roller (301) and is provided with an auxiliary mechanism (31). The surface of the lower roller (301) is provided with uniformly distributed friction strips (304).

2. The high-voltage cable fault location device according to claim 1, characterized in that, The auxiliary mechanism (31) includes a rotating shaft (3102) disposed inside the connecting shell (2) below. Both ends of the rotating shaft (3102) are fixedly connected to a turntable (3105) that is rotatably connected to the inner wall of the connecting shell (2). A drive plate (3104) is fixedly connected to the surface of the turntable (3105).

3. The high-voltage cable fault location device according to claim 2, characterized in that, A transmission mechanism (3101) is provided on the inner side of the connecting shell (2) below. One end of the transmission mechanism (3101) is fixedly connected to one end of the drive shaft, and the other end of the transmission mechanism (3101) is fixedly connected to the central shaft of another roller (301). Both the surface of the transmission mechanism (3101) and the surface of the rotating shaft (3102) are provided with bevel gears (3103), and the two bevel gears (3103) mesh with each other.

4. The high-voltage cable fault location device according to claim 3, characterized in that, Both ends of the connecting shell (2) are provided with docking shells (3106). A rotating half-ring (3111) is fixedly connected to the side of the docking shell (3106) near the connecting shell (2). The other end of the rotating half-ring (3111) is slidably connected to the surface of the connecting shell (2), and both ends of the rotating half-ring (3111) are flush with the upper surface of the connecting shell (2). The surface of the docking shell (3106) is fixedly connected with uniformly distributed scrapers (3107).

5. The high-voltage cable fault location device according to claim 4, characterized in that, A trigger rod (3117) is fixedly connected to the surface of the rotating half-ring (3111), and the other end of the trigger rod (3117) passes through the docking shell (3106) and extends into the interior of the docking shell (3106).

6. The high-voltage cable fault location device according to claim 5, characterized in that, The connecting shell (2) has a connecting cavity (3109) inside, and the docking shell (3106) has an exhaust cavity inside. The surface of the docking shell (3106) is provided with a connecting pipe (3110) that communicates with the exhaust cavity. The other end of the connecting pipe (3110) is connected to the connecting cavity (3109), and a one-way valve is provided inside the connecting pipe (3110). The surface of the docking shell (3106) has an air inlet (3112), and the surface of the rotating half ring (3111) has a through hole that communicates with the connecting cavity (3109). The connecting cavity (3109) is connected to the air inlet (3112) through the through hole.

7. The high-voltage cable fault location device according to claim 6, characterized in that, The surface of the docking shell (3106) is provided with evenly distributed exhaust pipes (3113). One end of the exhaust pipe (3113) is connected to the connecting cavity (3109). A connecting ring (3116) is fixedly connected to the inner wall of the exhaust pipe (3113). A baffle (3114) is provided on the side of the connecting ring (3116) away from the docking shell (3106). The baffle (3114) covers the central hole of the connecting ring (3116). Both sides of the baffle (3114) are rotatably connected to the surface of the connecting ring (3116). A spring (3115) is fixedly connected to both sides of the baffle (3114). The other end of the spring (3115) is fixedly connected to the surface of the connecting ring (3116).

8. The high-voltage cable fault location device according to claim 7, characterized in that, A slide rod (3118) is fixedly connected to the surface of the trigger rod (3117). The other end of the slide rod (3118) extends into the interior of the connecting cavity (3109) and is fixedly connected to a pressing block (3119) that slides against the inner wall of the connecting cavity (3109). A spring (3108) is sleeved on the surface of the slide rod (3118). One end of the spring (3108) is fixedly connected to the surface of the trigger rod (3117), and the other end of the spring (3108) is fixedly connected to the inner wall of the connecting shell (2).

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