Maintenance device for pantograph online monitoring equipment

Abstract

The utility model relates to the technical field of rail transit operation and maintenance, and discloses a maintenance device for pantograph online monitoring equipment, which comprises a telescopic rod. The bracket is assembled at the far end of the telescopic rod; the universal holder is assembled on the bracket; the camera is assembled on the universal holder; the resolution ratio of the camera is greater than or equal to 5K, and the frame rate of the camera is 30fps; the light supplementing lamp is assembled on the bracket and is positioned at the side part of the camera; the light supplementing lamp is used for supplementing light rays and focusing the light rays to an area where the pantograph online monitoring equipment is located; and the camera is used for acquiring an appearance image of the pantograph online monitoring equipment. According to the maintenance device, the telescopic rod carries the universal holder to drive the camera to adjust the angle and the position, the appearance image of the pantograph on-line monitoring equipment is collected, and whether the pantograph on-line monitoring equipment is normal or not is monitored through the returned appearance image, so that a worker is replaced with the help of a ladder truck for maintenance, and the maintenance efficiency is improved. And the efficiency improvement and the security upgrading of the maintenance operation are realized.

Description

Technical Field

[0001] This utility model relates to the field of rail transit operation and maintenance technology, and in particular to a maintenance device for pantograph online monitoring equipment. Background Technology

[0002] The pantograph is a key component for rail transit vehicles to obtain power from the overhead contact line. Its condition directly affects the operational safety and power supply stability of trains, making its inspection and maintenance particularly important. Routine inspection and maintenance work includes verifying the appearance of the camera system on top of the contact line, checking the fastening bolts and the appearance of the wire rope; verifying the appearance and fastening of the side supplementary lights and four flashlights on the camera system; and verifying the appearance and fastening of the signal receiving equipment on the track directly below the camera system. Pantograph online monitoring equipment is usually installed at a high position at the top of the tunnel, requiring maintenance personnel to use a ladder truck. Ladder truck operations present several problems: ① Difficulty in transportation: At least four people are needed to move the ladder truck horizontally and place it vertically. During transportation, there is a risk of personnel slipping and being injured. ② Psychological stress: When workers need to use a ladder truck to maintain the pantograph online monitoring equipment, the height can cause fear, affecting the accuracy and stability of the operation. Utility Model Content

[0003] Therefore, the purpose of this utility model is to overcome the difficulties in transportation and psychological stress caused by ladder truck operations for maintaining pantograph online monitoring equipment in the prior art, and to provide a maintenance device for pantograph online monitoring equipment, so as to improve the efficiency and safety of pantograph online monitoring equipment maintenance operations.

[0004] To solve the above-mentioned technical problems, this utility model provides a maintenance device for pantograph online monitoring equipment, comprising,

[0005] A telescopic rod, which can extend or shorten vertically;

[0006] A bracket, which is fitted to the distal end of the telescopic rod and extends horizontally;

[0007] The omnidirectional gimbal is mounted on the bracket;

[0008] A camera is mounted on the gimbal; wherein the camera has a resolution of 5K or higher and a frame rate of 30fps.

[0009] A supplementary light is mounted on the bracket and located on the side of the camera; the supplementary light is used to supplement light and focus it on the area where the pantograph online monitoring equipment is located;

[0010] The camera is used to capture images of the appearance of the pantograph online monitoring device.

[0011] In one embodiment of this utility model, the camera is equipped with a wireless transmission module, which is used to wirelessly transmit the captured appearance image to a terminal device.

[0012] In one embodiment of this utility model, a tripod support body is further included, on which a hydraulic damping platform is provided, and the proximal end of the telescopic rod is assembled to the hydraulic damping platform.

[0013] In one embodiment of the present invention, a connector with an inverted "T" shaped cross-section is further included. The connector is configured as an integrally formed structure. The connector is assembled to the hydraulic damping platform, and the proximal end of the telescopic rod is assembled to the connector.

[0014] In one embodiment of this utility model, the tripod support is configured as an aluminum alloy tripod support.

[0015] In one embodiment of this invention, the camera is configured as an action camera.

[0016] In one embodiment of this utility model, two fill lights are configured, and the two fill lights are symmetrically arranged on both sides of the camera in the horizontal direction.

[0017] In one embodiment of this utility model, the bracket is provided with a wire-threading channel, which extends from the connection end between the bracket and the telescopic rod to the connection part between the bracket and the fill light; a power cord is threaded through the wire-threading channel and the power cord is connected to the fill light.

[0018] In one embodiment of this utility model, the telescopic rod is provided with a wire-passing groove, the wire-passing groove is connected to the wire-passing channel, and the power cord passes through the wire-passing groove.

[0019] In one embodiment of this utility model, the gimbal supports terminal adjustment and has a built-in three-axis gyroscope.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0021] The maintenance device for pantograph online monitoring equipment described in this utility model consists of a telescopic pole carrying a pan-tilt-zoom camera that adjusts its angle and position to capture external images of the pantograph online monitoring equipment. These images are then used to monitor the equipment's functionality. Simultaneously, a supplementary light mounted on the telescopic pole provides fiber optic focusing to the area where the pantograph online monitoring equipment is located, overcoming the problem of varying lighting conditions in subway tunnels and ensuring the quality of the transmitted images. This replaces manual maintenance using ladder trucks, significantly improving the efficiency and safety of pantograph online monitoring equipment maintenance. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the maintenance device for the pantograph online monitoring equipment in a preferred embodiment of the present invention;

[0024] Figure 2 This is a block diagram of the maintenance device for the pantograph online monitoring equipment in a preferred embodiment of the present invention.

[0025] Explanation of reference numerals in the accompanying drawings: 2-telescopic pole, 4-bracket, 6-pan and globoss head, 8-camera, 10-fill light, 12-wireless transmission module, 14-terminal equipment, 16-tripod support, 18-hydraulic damping platform, 20-connector, 22-cable channel, 24-cable groove. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Example

[0028] The pantograph is a key component for rail transit vehicles to obtain power from the overhead contact line. Online monitoring equipment for the pantograph is used to monitor its operating status. According to existing rail transit regulations, inspections are conducted quarterly and annually, with the online monitoring equipment requiring inspection and maintenance every quarter. The online monitoring equipment is usually installed at a high position at the top of the tunnel. Maintenance personnel need to use a ladder truck to operate it, transporting the truck to the location of the monitoring equipment. Maintenance personnel then climb the ladder to work. Each operation is scheduled from 11:30 PM to 2:30 AM the following day, requiring coordination from the power supply workshop and station maintenance workshop. The entire process, from requesting to disabling the equipment, takes approximately 3 hours, making it time-sensitive, demanding, and prone to fatigue.

[0029] To address these issues, drone monitoring solutions have been proposed. However, the complex environment within subway tunnels presents challenges such as signal interference and unstable airflow, which affect the flight stability and safety of drones and increase operational difficulty. Furthermore, the numerous devices within the tunnels and the limited flight space increase the risk of drone collisions. Additionally, drone solutions are costly.

[0030] In view of this, this utility model discloses a maintenance device for pantograph online monitoring equipment, which improves the efficiency and safety of pantograph online monitoring equipment maintenance operations, while reducing costs compared to drone solutions.

[0031] Reference Figure 1 As shown, a maintenance device for pantograph online monitoring equipment includes a telescopic pole 2, a bracket 4, a pan-tilt head 6, a camera 8, and a supplementary light 10. The telescopic pole 2 can extend or retract vertically. The bracket 4 is mounted on the distal end of the telescopic pole 2 and extends horizontally. The pan-tilt head 6 is mounted on the bracket 2. The camera 8 is mounted on the pan-tilt head 6. The camera has a resolution greater than or equal to 5K and a frame rate of 30fps. The supplementary light 10 is mounted on the bracket 4 and located on the side of the camera 8. The supplementary light 10 is used to supplement light and focus it on the area where the pantograph online monitoring equipment is located. The camera 8 is used to collect an image of the pantograph online monitoring equipment. The image is then manually identified or processed by an algorithm to determine whether the pantograph online monitoring equipment is functioning properly, thus completing the maintenance of the pantograph online monitoring equipment.

[0032] In specific application scenarios, the telescopic rod 2 can extend or shorten vertically; the extension length is determined by the height of the subway tunnel and the installation position of the pantograph online monitoring equipment, with the aim of supporting the camera 8 to capture the external image of the pantograph online monitoring equipment. The bracket 4 is mounted on the far end of the telescopic rod 2 and extends horizontally; it should be noted that the two ends of the telescopic rod 2 in the vertical direction are the near end and the far end, respectively, with the near end being the end closer to the ground and the far end being the end farther from the ground. The gimbal 6 is mounted on the bracket 4; here, the gimbal 6 is a device that achieves multi-directional rotation through mechanical structure design. Its main moving part is one or more spheres, and the movement and fastening of the spheres are controlled by knobs or motors, so that the gimbal 6 can move freely in multiple directions such as horizontal, vertical, and rotation, and the angle can be precisely adjusted through electronic or mechanical control. The camera 8 is mounted on the gimbal 6. The telescopic rod 2 extends, causing the gimbal 6 to enter the pantograph online monitoring device. The gimbal 6 drives the camera 8 to orbit the pantograph online monitoring device, acquiring external images. The camera 8 has a resolution greater than or equal to 5K and a frame rate of 30fps. A 5K resolution (5120×2880) camera can clearly identify minor defects such as wear (≥0.3mm) on the pantograph's carbon plate and loose bolts (offset ≥0.2mm), and supports post-processing cropping and magnification (e.g., local area analysis) without affecting the clarity of key details. 30fps meets the low-speed dynamic monitoring requirements of the pantograph (e.g., static or slow-moving detection), avoiding redundant data caused by high frame rates (60fps / 120fps). The video size for a single operation (1.5 hours) is controllable (5K@30fps H.265 encoding occupies approximately 150-200GB), reducing storage and transmission costs.

[0033] In this embodiment, the gimbal 6 supports terminal adjustment and has a built-in three-axis gyroscope. The gimbal 6 supports angle adjustment via a handheld terminal, allowing for adjustment of the camera 8's rotation angle. (Three-axis gyroscope)

[0034] The maintenance device for pantograph online monitoring equipment described in this utility model consists of a telescopic pole carrying a pan-tilt-zoom camera that adjusts its angle and position to capture external images of the pantograph online monitoring equipment. These images are then used to monitor the equipment's functionality. Simultaneously, a supplementary light mounted on the telescopic pole provides fiber optic focusing to the area where the pantograph online monitoring equipment is located, overcoming the problem of varying lighting conditions in subway tunnels and ensuring the quality of the transmitted images. This replaces manual maintenance using ladder trucks, improving efficiency, enhancing safety, and optimizing costs for pantograph online monitoring equipment maintenance.

[0035] In other implementation schemes, refer to Figure 2 As shown, the camera 8 is equipped with a wireless transmission module 12, which is used to wirelessly transmit the captured appearance image to the terminal device 14. The captured appearance image is transmitted back to the terminal device 14 operated by maintenance personnel in real time, so that the maintenance personnel can view the appearance image on-site and determine whether the pantograph online monitoring equipment is functioning properly.

[0036] In specific application scenarios, the camera 8 is configured as an action camera. Action cameras are small in size and light in weight, support 4K or even higher resolution video recording, and support Wi-Fi / Bluetooth connectivity.

[0037] In other embodiments, the maintenance device for the pantograph online monitoring equipment also includes a tripod support 16, which forms a stable support for the maintenance device. Specifically, the tripod support 16 is preferably an aluminum alloy tripod support. The tripod support can meet the requirements of anti-tipping ability and vibration characteristics under the conditions of wind disturbance and uneven ground in the tunnel. The aluminum alloy tripod support has excellent strength, rigidity and stability.

[0038] Furthermore, a hydraulic damping platform 18 is provided on the tripod support 16, and the proximal end of the telescopic rod 2 is assembled to the hydraulic damping platform 18. The hydraulic damping platform 18 achieves shock absorption and buffering through the flow and pressure transmission of liquid in a closed container, providing stable support for the camera 8 and the fill light 10, ensuring that the subsequently acquired appearance images are clear, continuous, and stable without shaking or offset.

[0039] In actual working conditions, the telescopic pole 2 needs to extend to a length of 4m. The far end of the telescopic pole 2 is equipped with a camera 8 and a supplementary light 10. There is a problem of excessive stress concentration at the connection between the telescopic pole 2 and the hydraulic damping platform 18, which may lead to breakage later. To solve this technical problem, as a further improvement of this utility model, the maintenance device for the pantograph online monitoring equipment also includes a connector 20 with an inverted "T" shaped cross-section. The connector 20 is configured as a one-piece molded structure; the connector 20 is assembled to the hydraulic damping platform 18, and the near end of the telescopic pole 2 is assembled to the connector 20. The one-piece molded connector 20 connects the telescopic pole 2 and the hydraulic damping platform 18, solving the problem of stress concentration, eliminating potential hazards in subsequent operations, and improving shooting efficiency and accuracy.

[0040] It should be noted that the supplementary lights 10 are installed below the side of the camera 8 (at a distance of 10-15cm), focusing the light on the detection area to avoid glare or reflection caused by direct light hitting the lens. Furthermore, two supplementary lights 10 are configured, symmetrically arranged horizontally on both sides of the camera 8. The dual supplementary lights 10, symmetrically distributed on both sides of the camera 8, provide light coverage of the detection area from both left and right, avoiding shadows caused by a single light source and ensuring balanced image brightness. Simultaneously, the dual lights project light from different angles, highlighting the three-dimensional features of the image surface texture and improving defect recognition accuracy.

[0041] Reference Figure 1 As shown, the bracket 4 has a wiring channel 22 inside, extending from the connection end between the bracket 4 and the telescopic rod 2 to the connection part between the bracket 4 and the supplementary light 10. A power cord is threaded through the wiring channel 22 and connected to the supplementary light 10. The telescopic rod 2 has a wiring groove 24 inside, connecting to the wiring channel 22, through which the power cord exits. The supplementary light 10 is powered by an external power supply via the power cord. The power cord is internally connected to the wiring channel 22 and the wiring groove 24 throughout its length, preventing exposed cables from snagging on equipment components (such as the telescopic rod and tripod support) or personnel operations, thus improving operational safety.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A maintenance device for a pantograph on-line monitoring apparatus, characterized by: include, A telescopic rod, which can extend or shorten vertically; A bracket, which is fitted to the distal end of the telescopic rod and extends horizontally; The omnidirectional gimbal is mounted on the bracket; A camera is mounted on the gimbal; wherein the camera has a resolution of 5K or higher and a frame rate of 30fps. A supplementary light is mounted on the bracket and located on the side of the camera; the supplementary light is used to supplement light and focus it on the area where the pantograph online monitoring equipment is located; The camera is used to capture images of the appearance of the pantograph online monitoring device.

2. The maintenance device for pantograph on-line monitoring equipment according to claim 1, characterized in that: The camera is equipped with a wireless transmission module, which is used to wirelessly transmit the captured appearance image to the terminal device.

3. The maintenance device for pantograph online monitoring equipment according to claim 2, characterized in that: It also includes a tripod support, on which a hydraulic damping platform is provided, and the proximal end of the telescopic rod is assembled to the hydraulic damping platform.

4. The maintenance device for pantograph on-line monitoring equipment according to claim 3, characterized in that: It also includes a connector with an inverted "T" shaped cross-section, the connector being configured as an integrally formed structure; the connector is assembled to the hydraulic damping platform, and the proximal end of the telescopic rod is assembled to the connector.

5. The maintenance device for pantograph on-line monitoring equipment according to claim 3, characterized in that: The tripod support is made of aluminum alloy.

6. The maintenance device for pantograph online monitoring equipment according to claim 1, characterized in that: The camera is configured as an action camera.

7. The maintenance device for pantograph online monitoring equipment according to claim 1, characterized in that: The camera is equipped with two fill lights, which are symmetrically arranged on both sides of the camera in a horizontal direction.

8. The maintenance device for pantograph online monitoring equipment according to claim 1 or 7, characterized in that: The bracket has a wiring channel inside, which extends from the connection end between the bracket and the telescopic rod to the connection part between the bracket and the fill light; a power cord is threaded through the wiring channel and is connected to the fill light.

9. The maintenance device for pantograph on-line monitoring equipment according to claim 8, characterized in that: The telescopic rod is provided with a wire-passing groove, which is connected to the wire-passing channel, and the power cord is passed out through the wire-passing groove.

10. The maintenance device for pantograph on-line monitoring equipment according to claim 1, characterized in that: The gimbal supports terminal adjustment and has a built-in three-axis gyroscope.

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