An unmanned inspection device for railway overhead contact lines

Abstract

This utility model relates to the field of unmanned inspection technology, specifically an unmanned inspection device for railway catenary. It includes a drone component with monitoring elements, motor components fixed at each of the four corners of the drone component with monitoring elements, and the output shaft of each motor component penetrating the side wall of the drone component and extending to its upper end. A propeller is fixed to the end of the output shaft of each motor component. A mounting box is fixed to the upper end of the drone component with monitoring elements, and a support plate is fixed to the bottom of the mounting box. This utility model solves the problem of railway catenary being too long for manual inspection by taking pictures and locating the target area, and also addresses the issue of poor drone protection by providing timely shock absorption, thus improving the drone's protection. Furthermore, it facilitates the installation and removal of protective devices, effectively protecting the propeller and ensuring flight safety.

Description

Technical Field

[0001] This utility model relates to the field of unmanned inspection technology, and in particular to an unmanned inspection device for railway catenary. Background Technology

[0002] During train operation, the overhead contact system experiences frequent failures due to the complex mechanical and electrical interactions between the pantograph and the contact wire. As a typical piece of equipment along railway lines, the overhead contact system plays a crucial role in the railway power supply system. Failures in the overhead contact system not only damage the traction power supply system itself but also trigger a chain reaction, potentially affecting the normal and safe operation of trains and causing significant casualties and economic losses. Therefore, taking timely measures to resolve overhead contact system failures is of great significance for improving railway transportation efficiency.

[0003] A picture detection device for monitoring faults in railway catenary, disclosed in CN115291042B, belongs to the field of image recognition technology. Specifically, it includes: a current monitoring module, an image monitoring module, a current collection status detection module, a foreign object identification module, and a health assessment module. The current monitoring module monitors the output current of the catenary and transmits the activation signal to the image monitoring module. The image monitoring module transmits a basic image to the foreign object identification module and the overcurrent monitoring module, and transmits an infrared image to the overcurrent monitoring module. The current collection status monitoring module obtains a current collection status index based on a status score and arc rate using a prediction model, and transmits it to the health assessment module. The foreign object identification module obtains the foreign object identification status and transmits it to the health assessment module. The health assessment module obtains the catenary health index based on the foreign object identification status and the current collection status index, thereby further ensuring the accuracy of the assessment and avoiding unnecessary energy waste.

[0004] The above technical solution requires photographing the overhead contact line so that the images can be processed using existing technology. When using drones for photography, the complex environment surrounding the railway overhead contact line necessitates adequate protection of the drones to prevent damage. However, conventional drones cannot provide effective protection, so improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an unmanned inspection device for railway catenary systems. This device uses drones to take photos and locate the catenary, thus solving the problem that the railway catenary is too long for manual inspection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An unmanned inspection device for railway catenary includes a drone assembly with monitoring components. Motor assemblies are fixed at all four corners of the drone assembly with monitoring components. The output shaft of each motor assembly passes through the side wall of the drone assembly with monitoring components and extends to its upper end. A propeller is fixed to the end of the output shaft. A mounting box is fixed to the upper end of the drone assembly with monitoring components. A support plate is fixed to the bottom of the mounting box. L-shaped fixing blocks are fixed to both sides of the upper end of the support plate. An L-shaped connecting block is provided on one side of each L-shaped fixing block, and the lower ends of both L-shaped connecting blocks are fixed to the upper end of the support plate. Two insert blocks are provided through the upper end of the mounting box. Each insert block corresponds to one of the two L-shaped connecting blocks. The upper ends of the two insert blocks are jointly fixed with an I-shaped connecting frame. Each of the four corners of the I-shaped connecting frame is fixed with a fixing ring corresponding to the propeller, and the four fixing rings are respectively fitted onto the four propellers. A U-shaped block is fastened to the I-shaped connecting frame. Both sides of the lower end of the U-shaped block are fixed with L-shaped connectors, and the two L-shaped connectors are respectively fixed to the two sides of the fixing box by two seventh screws. The U-shaped block has a cavity, and four shock-absorbing devices are provided in the cavity. Each shock-absorbing device has a fixing rod. One end of the fixing rod passes through the side wall of the U-shaped block and extends to one side of the U-shaped block. A baffle is fixed to one end of the fixing rod, and the four fixing rings are all located between the four baffles.

[0007] Compared with existing technologies, this utility model also solves the problem of poor protection of drones. When subjected to external forces, it can promptly reduce the shock of the drone, improve the protection of the drone, extend the service life of the drone, facilitate the installation and removal of protective devices, and effectively protect the propeller, ensuring flight safety.

[0008] Preferably, the shock absorption device includes a protective box fixed to the bottom of the cavity, two partitions fixed between opposite sidewalls inside the protective box, a sleeve fixed to one side of each of the two partitions, another sleeve fixed to each opposite sidewall inside the protective box, and the two sleeves located between the two partitions, an elastic damping component fixed to one end of the sidewall inside the sleeve, a pressure plate fixed to one end of the elastic damping component, and the other end of the fixing rod penetrating the sidewalls of the protective box and the sleeve and fixed to one side of the pressure plate.

[0009] Furthermore, the elastic damping components can effectively absorb external kinetic energy and reduce vibration, thereby ensuring the stability of the unmanned inspection equipment and the stability of the connections of its internal components, preventing the components from becoming loose due to vibration.

[0010] Preferably, the lower end of the fixing box is provided with four fourth through holes, and the drone component with monitoring components is provided with four first threaded blind holes corresponding to the fourth through holes. A sixth screw is inserted through the fourth through hole, and the lower end of the sixth screw extends into the first threaded blind hole.

[0011] Preferably, the baffle is provided with two first through holes, and the fixing ring is provided with three third threaded blind holes corresponding to the first through holes at equal intervals. A second screw is inserted through each of the two first through holes, and one end of each of the two second screws extends into the two third threaded blind holes respectively.

[0012] Preferably, one side of the L-shaped fixing block is provided with three third through holes, and one side of the L-shaped connecting block is provided with three fourth threaded blind holes corresponding to the third through holes. A fifth screw is inserted through the third through hole, and one end of the fifth screw extends into the fourth threaded blind hole.

[0013] Preferably, the L-shaped fixing block is provided with four fifth through holes, and the insert block is provided with four second threaded blind holes corresponding to the fifth through holes. A third screw is inserted through the fifth through hole, and one end of the third screw extends into the corresponding second threaded blind hole.

[0014] Preferably, the L-shaped connecting block is provided with four second through holes, the bearing plate is provided with eight sixth through holes corresponding to the second through holes, and the bottom of the fixing box is provided with eight fifth threaded blind holes corresponding to the sixth through holes. A second through hole and a sixth through hole in the same group constitute a group. A fourth screw is provided through the second through hole and the sixth through hole in the same group. The lower end of the fourth screw extends into the corresponding fifth threaded blind hole.

[0015] Preferably, the I-shaped connecting frame and the fixing box are fixed together by four first screws.

[0016] The beneficial effects of this utility model are: 1. The equipment in this application can effectively photograph the railway catenary and transmit the captured images back to the manufacturer for analysis of image information and image capture location to determine whether the railway catenary is damaged. 2. By using the combination of multiple screws, L-shaped fixing blocks, L-shaped connecting blocks and inserts, the problem of inconvenient installation and disassembly is solved, enabling the rapid installation and disassembly of the protective device during drone flight, improving the efficiency of installation and disassembly and saving time; 3. By coordinating the baffle, fixing rod, pressure plate, elastic damping components and sleeve, the problem of poor protection of drones is solved, achieving the effect of protecting and shock-absorbing drones when subjected to external forces. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the UAV component with monitoring elements according to this utility model; Figure 3 This is a diagram showing the connection state of the U-shaped block in this utility model; Figure 4 This is a diagram showing the connection state of the fixing box in this utility model; Figure 5 This is a schematic diagram of the structure of the fixing ring in this utility model; Figure 6 This is a schematic diagram of the L-shaped connector in this utility model; Figure 7 This is a schematic diagram of the internal structure of the fixing box in this utility model; Figure 8 This is a schematic diagram of the U-shaped block in this utility model; Figure 9 This is a schematic diagram of the internal structure of the U-shaped block in this utility model; Figure 10 Appendix of this utility model Figure 9 Enlarged view of point A.

[0018] In the diagram: 1 First screw, 2 U-shaped block, 3 Fixing rod, 4 Fixing ring, 5 Second screw, 6 Propeller, 7 Baffle, 8 Support plate, 9 UAV component with monitoring components, 10 I-shaped connecting frame, 11 Motor assembly, 12 First threaded blind hole, 13 Insert block, 14 Third threaded blind hole, 15 Second threaded blind hole, 16 L-shaped connector, 17 Seventh screw, 18 L-shaped fixing block, 19 Third through hole, 20 Bearing plate, 21 L-shaped connecting block, 22 Second through hole, 23 Third screw, 24 Sleeve, 25 Fourth screw, 26 Fifth screw, 27 Sixth screw, 28 Fixing box, 29 Fourth through hole, 30 Support rod, 31 Protective box, 32 Pressure plate, 33 Elastic damping component, 34 Partition. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-10An unmanned inspection device for railway overhead contact lines includes a drone component 9 with monitoring elements, which provides support and houses the drone. This component enables stable control of the drone's flight and provides image capture and uploading capabilities. The captured images contain GPS location data of the shooting location, allowing for effective image capture of the railway overhead contact lines. The captured images can also be transmitted back for analysis of the image information and shooting location to determine if there is any damage to the contact lines.

[0021] The drone component 9 with monitoring components has motor components 11 fixed at each of its four corners. The output shaft of the motor component 11 passes through the side wall of the drone component 9 with monitoring components and extends to the top of the drone component 9 with monitoring components. A propeller 6 is fixed to the end of the output shaft of the motor component 11. The rotation of the output shaft of the motor component 11 drives the propeller 6 to rotate, facilitating drone flight. A fixing box 28 is fixed to the top of the drone component 9 with monitoring components. A support plate 20 is fixed to the bottom of the fixing box 28. L-shaped fixing blocks 18 are fixed to both sides of the upper end of the support plate 20. An L-shaped connecting block 21 is provided on one side of the L-shaped fixing block 18, and the lower ends of the two L-shaped connecting blocks 21 are fixed to the upper end of the support plate 20. The cooperation between the L-shaped fixing blocks 18 and the L-shaped connecting blocks 21 facilitates the fixing of the I-shaped connecting frame 10, which serves as a connection and fixation function.

[0022] In this embodiment, two insert blocks 13 are provided through the upper end of the fixing box 28, and the two insert blocks 13 correspond to two L-shaped connecting blocks 21 respectively. The upper ends of the two insert blocks 13 are jointly fixed with an I-shaped connecting frame 10. Each of the four corners of the I-shaped connecting frame 10 is fixed with a fixing ring 4 corresponding to the propeller 6, and the four fixing rings 4 are respectively fitted onto the four propellers 6 to facilitate the protection of the propellers 6. A U-shaped block 2 is fastened to the I-shaped connecting frame 10. L-shaped connectors 16 are fixed on both sides of the lower end of the U-shaped block 2, and the two L-shaped connectors 16 are respectively fixed to both sides of the fixing box 28 by two seventh screws 17. The seventh screws 17 improve the stability of the U-shaped block 2 and facilitate installation and disassembly.

[0023] In this embodiment, the U-shaped block 2 has a cavity containing four shock-absorbing devices. Each shock-absorbing device has a fixing rod 3, one end of which penetrates the side wall of the U-shaped block 2 and extends to one side of the block. A baffle 7 is fixed to one end of the fixing rod 3; movement of the baffle 7 moves the fixing rod 3, and all four fixing rings 4 are located between the four baffles 7. The I-shaped connecting frame 10 and the fixing box 28 are fixed together by four first screws 1, improving their tightness. The U-shaped block 2 and the two L-shaped connectors 16 are integrally formed. With the assistance of the shock-absorbing devices, the UAV can absorb shocks when subjected to external forces, thus protecting it from damage.

[0024] In this embodiment, the shock absorption device includes a protective box 31 fixed to the bottom of the cavity. Two partitions 34 are fixed between opposite sidewalls inside the protective box 31. A sleeve 24 is fixed to one side of each partition 34. Another sleeve 24 is fixed to each opposite sidewall inside the protective box 31, and the two sleeves 24 are located between the two partitions 34. An elastic damping component 33 is fixed to one end of the sidewall inside the sleeve 24. A pressure plate 32 is fixed to one end of the elastic damping component 33. When the pressure plate 32 moves, it compresses the elastic damping component 33. The other end of a fixing rod 3 passes through the sidewalls of the protective box 31 and the sleeve 24 and is fixed to one side of the pressure plate 32. When the fixing rod 3 moves, it drives the pressure plate 32 to move. When the elastic damping component 33 is compressed by the pressure plate 32, it uses its own reset function to absorb shock, thereby improving the protection of the UAV.

[0025] In this embodiment, the lower end of the fixing box 28 is provided with four fourth through holes 29, and the drone component 9 with monitoring components is provided with four first threaded blind holes 12 corresponding to the fourth through holes 29. A sixth screw 27 is inserted through the fourth through hole 29, and the lower end of the sixth screw 27 extends into the first threaded blind hole 12, which improves the firmness of the connection between the fixing box 28 and the drone component 9 with monitoring components and facilitates disassembly.

[0026] In this embodiment, the baffle 7 is provided with two first through holes, and the fixing ring 4 is provided with three third threaded blind holes 14 at equal intervals corresponding to the first through holes. A second screw 5 is provided through both first through holes, and one end of the two second screws 5 extends into the two third threaded blind holes 14 respectively, so that the baffle 7 can protect the drone and can be quickly disassembled when the protective device is not needed, saving time.

[0027] In this embodiment, the L-shaped fixing block 18 has three third through holes 19 on one side, and the L-shaped connecting block 21 has three fourth threaded blind holes corresponding to the third through holes 19 on one side. A fifth screw 26 is inserted through the third through hole 19, and one end of the fifth screw 26 extends into the fourth threaded blind hole, which facilitates fixing and disassembly and improves the efficiency of fixing and disassembly.

[0028] In this embodiment, the L-shaped fixing block 18 is provided with four fifth through holes, and the insert block 13 is provided with four second threaded blind holes 15 corresponding to the fifth through holes. A third screw 23 is provided through the fifth through hole, and one end of the third screw 23 extends into the corresponding second threaded blind hole 15, thereby improving the tightness of the connection between the insert block 13 and the L-shaped fixing block 18 and preventing the insert block 13 from falling off.

[0029] In this embodiment, the L-shaped connecting block 21 is provided with four second through holes 22, the bearing plate 20 is provided with eight sixth through holes corresponding to the second through holes 22, and the bottom of the fixing box 28 is provided with eight fifth threaded blind holes corresponding to the sixth through holes. One second through hole 22 and one sixth through hole in the same group constitute a group. The second through hole 22 and the sixth through hole in the same group are provided with a fourth screw 25 through them. The lower end of the fourth screw 25 extends into the corresponding fifth threaded blind hole, which facilitates installation and disassembly, improves the efficiency of installation and disassembly, and saves time.

[0030] In this invention, during use, the drone component 9 with monitoring components is first placed in a suitable position. Then, the fixing box 28 is fixed to the drone component 9 with monitoring components using the sixth screw 27. The L-shaped fixing block 18 and the L-shaped connecting block 21 are fixed using the fifth screw 26. The I-shaped connecting frame 10 is placed on the fixing box 28, and the two insert blocks 13 are inserted into the fixing box 28. The insert blocks 13 and the L-shaped connecting block 21 are fixedly connected using the third screw 23. The fixing ring 4 is placed on the propeller 6, and the U-shaped block 2 is fastened to the I-shaped connecting frame 10. The L-shaped connecting piece 16 and the fixing box 28 are fixed using the seventh screw 17. Finally, the baffle 7 and the fixing ring 4 are fixed using the second screw 5. When the drone is subjected to external force, the baffle 7 moves, causing the fixing rod 3 to move. When the fixing rod 3 moves, it causes the pressure plate 32 to move. The pressure plate 32 moves and compresses the elastic damping component 33. The elastic damping component 33's reset and energy absorption functions are used to reduce the drone's shock.

[0031] The drone can fly along the railway and take pictures through the monitoring components on the drone component 9 with monitoring components. It can also transmit the pictures back for analysis and processing, so as to realize unmanned inspection of the railway catenary.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An unmanned inspection device for railway catenary, comprising an unmanned aerial vehicle (UAV) component (9) with monitoring components, characterized in that: The four corners of the drone assembly (9) with monitoring components are fixed with motor assemblies (11). The output shaft of the motor assembly (11) passes through the side wall of the drone assembly (9) with monitoring components and extends to the upper end of the drone assembly (9) with monitoring components. A propeller (6) is fixed to the end of the output shaft of the motor assembly (11). A fixing box (28) is fixed to the upper end of the drone assembly (9) with monitoring components. A support plate (20) is fixed to the bottom of the fixing box (28). L-shaped fixing blocks (18) are fixed to both sides of the upper end of the support plate (20). An L-shaped connecting block (21) is provided on one side of the L-shaped fixing block (18), and the lower ends of the two L-shaped connecting blocks (21) are fixed to the upper end of the support plate (20). Two inserts (13) are provided through the upper end of the fixing box (28), and the two inserts (13) are respectively connected to the two L-shaped connecting blocks (21). Correspondingly, the upper ends of the two insert blocks (13) are fixed with I-shaped connecting frames (10). The four corners of the I-shaped connecting frames (10) are fixed with fixing rings (4) corresponding to the propellers (6), and the four fixing rings (4) are respectively fitted on the four propellers (6). A U-shaped block (2) is fastened on the I-shaped connecting frame (10). L-shaped connectors (16) are fixed on both sides of the lower end of the U-shaped block (2), and the two L-shaped connectors (16) are respectively fixed on both sides of the fixing box (28) by two seventh screws (17). The U-shaped block (2) has a cavity, and four shock-absorbing devices are provided in the cavity. The shock-absorbing devices are provided with fixing rods (3). One end of the fixing rod (3) penetrates the side wall of the U-shaped block (2) and extends to one side of the U-shaped block (2). One end of the fixing rod (3) is fixed with a baffle (7), and the four fixing rings (4) are located between the four baffles (7).

2. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The shock absorption device includes a protective box (31) fixed to the bottom of the cavity. Two partitions (34) are fixed between opposite side walls inside the protective box (31). A sleeve (24) is fixed to one side of each of the two partitions (34). Another sleeve (24) is fixed to the opposite side wall inside the protective box (31). The two sleeves (24) are located between the two partitions (34). An elastic damping component (33) is fixed to one side wall inside the sleeve (24). A pressure plate (32) is fixed to one end of the elastic damping component (33). The other end of the fixing rod (3) passes through the side wall of the protective box (31) and the sleeve (24) and is fixed to one side of the pressure plate (32).

3. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The lower end of the fixed box (28) is provided with four fourth through holes (29), and the drone component (9) with monitoring components is provided with four first threaded blind holes (12) corresponding to the fourth through holes (29). A sixth screw (27) is provided through the fourth through hole (29), and the lower end of the sixth screw (27) extends into the first threaded blind hole (12).

4. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The baffle (7) is provided with two first through holes, and the fixing ring (4) is provided with three third threaded blind holes (14) corresponding to the first through holes at equal intervals. A second screw (5) is provided through both first through holes, and one end of the two second screws (5) extends into the two third threaded blind holes (14) respectively.

5. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The L-shaped fixing block (18) has three third through holes (19) on one side, and the L-shaped connecting block (21) has three fourth threaded blind holes corresponding to the third through holes (19) on one side. A fifth screw (26) is inserted through the third through hole (19), and one end of the fifth screw (26) extends into the fourth threaded blind hole.

6. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The L-shaped fixing block (18) is provided with four fifth through holes, and the insert block (13) is provided with four second threaded blind holes (15) corresponding to the fifth through holes. A third screw (23) is provided through the fifth through hole, and one end of the third screw (23) extends into the corresponding second threaded blind hole (15).

7. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The L-shaped connecting block (21) is provided with four second through holes (22), the bearing plate (20) is provided with eight sixth through holes corresponding to the second through holes (22), the bottom of the fixing box (28) is provided with eight fifth thread blind holes corresponding to the sixth through holes, one second through hole (22) and one sixth through hole in the same group are a group, and a fourth screw (25) is provided through the second through hole (22) and the sixth through hole in the same group, and the lower end of the fourth screw (25) extends into the corresponding fifth thread blind hole.

8. The unmanned inspection equipment for railway catenary according to claim 1, characterized in that, The I-shaped connecting frame (10) and the fixing box (28) are fixed together by four first screws (1).

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