Vehicle-mounted roof equipment self-inspection device for railway infrastructure maintenance equipment
By installing a track-mounted roof inspection video device on the roof of railway infrastructure maintenance equipment vehicles, the problems of time-consuming, labor-intensive, and safety hazards associated with traditional inspection methods have been solved. This enables efficient and safe roof equipment inspection under field conditions, and is especially suitable for electrified lines.
Patent Information
- Application Number
- CN202520171021.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-25
AI Technical Summary
Existing roof inspection methods are time-consuming, labor-intensive, and pose safety hazards. They cannot effectively inspect the roof equipment of railway infrastructure maintenance equipment in the field, especially on electrified lines where drones cannot be safely used.
Design a roof-mounted, track-type roof inspection video device, including a guide rail, an electric drive traveling device, a roof inspection mechanism, and a matching locking device. The device uses an electric cylinder to drive the camera to move along the guide rail, enabling efficient inspection of the roof equipment and ensuring a safe distance from the overhead contact line.
It enables efficient and safe inspection of the rooftop equipment of railway infrastructure maintenance equipment under field conditions, improving inspection efficiency and reducing safety risks, especially for safe operation on electrified lines.
Smart Images

Figure CN223648952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway infrastructure maintenance equipment, specifically to a track-mounted roof inspection video device installed on the top of a railway infrastructure maintenance equipment vehicle. Background Technology
[0002] As the types and functions of railway infrastructure maintenance equipment continue to increase, in addition to traditional communication equipment and air conditioning, there are more and more other functional devices installed on the roof of vehicles, such as roof-mounted radiators, various thermal protection systems, braking resistors, pantographs, etc. The existing roof inspection methods and devices are increasingly unable to meet the needs of roof inspection.
[0003] Currently, there are two traditional methods for inspecting train rooftops. One involves manual inspection via ladders, which is time-consuming, labor-intensive, and poses safety hazards due to working at height. The other involves installing a rooftop inspection device separate from the train within the maintenance section, requiring the train to return to the section for inspection. Since railway infrastructure maintenance equipment frequently operates in the field, routine inspections of rooftop equipment cannot be guaranteed to ensure its integrity, potentially posing safety risks to train operations. Furthermore, with the widespread use of electrified overhead contact lines, rooftop inspection devices must maintain a certain distance from the contact line and related equipment. Current drone technology is not yet safe for their use. Therefore, ensuring the safe daily rooftop inspection of railway infrastructure maintenance equipment is a pressing issue that needs to be addressed. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned roof inspection methods and to provide a track-mounted roof inspection video device for railway infrastructure maintenance equipment. This device meets the daily roof inspection needs of railway infrastructure maintenance equipment and also enables the device to check its own status, effectively improving inspection efficiency. It is applicable to both electrified and non-electrified lines.
[0005] The technical solution of this utility model is:
[0006] A roof inspection device for railway infrastructure maintenance includes a guide rail, an electrically driven traveling device mounted on the guide rail, a roof inspection mechanism for inspecting roof equipment, and a matching locking device. The roof inspection mechanism is integrated on the electrically driven traveling device, which extends upward using an electric cylinder to drive a camera to be placed on the upper part of the roof equipment. The camera moves along the guide rail via the electrically driven traveling device to observe the status of the equipment below.
[0007] The roof inspection mechanism includes electric cylinders, a camera, and a platform mounting plate. One end of the electric cylinder is connected to the platform mounting plate, and the camera is mounted on the platform mounting plate via bolts or other means. Two electric cylinders are connected to the platform mounting plate, forming a "П" shape. The electric cylinders extend and retract, and the platform mounting plate rises and falls accordingly. When fully retracted, the height S between the upper part of the platform mounting plate and the lower part of the guide rail is ≤ 500mm. The entire roof inspection device is located within the locomotive and rolling stock clearance. When fully extended, the height L between the lower part of the platform mounting plate and the rail surface is ≥ 48000mm. +50 The overall height of the roof inspection device is ≤5100mm, and it maintains a safe distance of at least 600mm from the contact wire; the total number of cameras is not less than 3, and the total inspection range of the cameras can cover a width W≥3400mm based on the guide rail mounting surface; the electric cylinder is a two-stage or multi-stage cylinder, with a total number of not less than 2, which lifts and lowers synchronously, and the total lifting stroke is ≥500mm.
[0008] The roof inspection mechanism, along with its locking device and guide rail, is integrated into the roof. The guide rail is a rack and pinion guide rail, and the integration method can be welding, bolting, or riveting. The locking device includes a stop, a limit switch, an electronic lock, and a charging socket. The limit switch, electronic lock, and charging socket are bolted to the stop. The limit switch and charging socket are installed on the side of the stop that contacts the electric drive traveling device. The electronic lock is installed on the upper part of the side of the stop that contacts the electric drive traveling device. The stop is located at both ends of the guide rail. The limit switch and electronic lock are installed on the stop. The electric drive traveling device triggers the limit switch, which instructs the electronic lock to actuate, locking the electric drive traveling device's directional movement via its own fixing pin.
[0009] The electric drive traveling device can move along the guide rail. By being limited by the stops at both ends of the guide rail, the electric drive traveling device wraps around the guide rail. The electric drive traveling device and the guide rail form a "П" shape to prevent derailment. The guide rail and the stops are fixed to the two sides of the top of the carport by welding, bolting or other methods. The center distance between the left and right guide rails is 2500±20mm.
[0010] The electric drive travel device, electric cylinder, camera, limit switch and electronic lock all operate at DC24V or DC110V. The electric drive travel device is equipped with a power battery. The stop is equipped with a limit switch, electronic lock and charging socket. The cable is connected to the charging socket to transmit power. After the electric drive travel device is locked to the stop, the power battery can be charged.
[0011] The guide rails and electric drive traveling device are made of stainless steel or aluminum alloy, while the electric cylinder and platform mounting plate are made of aluminum alloy.
[0012] The camera can transmit video signals via wired or wireless means.
[0013] Electronic locks can transmit unlocking signals via wired or wireless means.
[0014] Compared with the prior art, the utility model introduces a completely new vehicle top-mounted rail-mounted roof inspection video device, which can efficiently inspect the roof equipment of self-propelled equipment under field conditions, especially for safe operation under electrified line conditions.
[0015] The utility model introduces a roof inspection device, which overcomes the differences of multiple types of self-propelled equipment body equipment, improves the safety of roof inspection, and through simulation verification, improves the overall efficiency of the operation and shortens the inspection time by more than 50%. Brief Description of the Drawings
[0016] Figure 1 It is an installation example diagram of the roof inspection device;
[0017] Figure 2 It is an operation state description diagram of the roof inspection device;
[0018] Figure 3 It is an example diagram of the supporting locking device of the roof inspection device;
[0019] In the figure: 1. Guide rail, 2. Electric drive running device, 3. Electric cylinder, 4. Camera, 5. Platform mounting plate, 6. Cable, 7. Stopper, 8. Travel switch, 9. Electronic lock, 10. Car shed, 11. Power battery, 12. Charging socket. Detailed Embodiment
[0020] The following further describes the present utility model in detail according to a certain embodiment of the vehicle top-mounted rail-mounted roof inspection video device provided Figure 1-3 In the embodiment, the guide rail 1 is fixed on both sides of the top of the car shed 10 by welding, bolting or other means. The electric drive running device 2 is surrounded on the guide rail 1, and the electric drive running device 2 and the guide rail 1 form a "П" shape to prevent derailment. The electric cylinder 3 is integrated in the electric drive running device 2. One end of the electric cylinder 3 is connected to the platform mounting plate 5 by bolts, forming a "П" shape. The camera 4 is installed on the platform mounting plate 5. The electric cylinder 3 expands and contracts up and down, and the platform mounting plate 5 and the camera can rise and fall accordingly. When fully retracted, the height S between the upper part of the platform mounting plate 5 and the lower part of the guide rail 1 is ≤500 mm, and the overall roof inspection device is within the locomotive and vehicle clearance.
[0021] Figure 1 In the embodiment, after the electric cylinder 3 is fully extended, the height L of the lower part of the platform mounting plate 5 from the rail surface is ≥48000
[0022] Figure 2 +50 The overall height of the roof inspection device is ≤5100mm, and it maintains a safe distance of at least 600mm from the overhead contact line. Camera 4 is mounted on the guide rail 1, and its total inspection range can cover a width W ≥3400mm. Camera 4 can transmit video signals via wired or wireless means.
[0023] Figure 3 In this system, the electric drive traveling device 2 can move along the guide rail 1. Stops 7 are located at both ends of the guide rail 1 and are fixed to the canopy 10 by welding, bolting, riveting, etc. Limit switches 8, electronic locks 9, and charging sockets 12 are installed on the stops 7. The electric drive traveling device 2 has a built-in power battery 12. By triggering the limit switch 8, the limit switch 8 instructs the electronic lock 9 to operate, and the electronic lock 9 locks the electric drive traveling device 2 by its own fixation. The electronic lock 9 can transmit unlocking signals via wired or wireless means. Cable 6 is used to transmit power. The electric drive traveling device 2, electric cylinder 3, camera 4, limit switches 8, electronic locks 9, and charging socket all operate at DC 24V. Cable 6 is connected to the charging socket 12. After the electric drive traveling device 2 is locked to the stop 7, the power battery can be charged.
[0024] The above description, in conjunction with the accompanying drawings, is merely a description of one embodiment of the present utility model and does not limit the technical solution of the present utility model thereto. Any well-known modifications made by those skilled in the art of locomotives and rolling stock based on the main technical concept of the present utility model shall fall within the technical scope to be protected by the present utility model.
Claims
1. A self-inspection device for vehicle-mounted rooftop equipment used in railway infrastructure maintenance, characterized in that: The system includes a guide rail (1), an electric drive traveling device (2) mounted on the guide rail (1), a roof inspection mechanism for inspecting roof equipment, and a matching locking device. The roof inspection mechanism includes an electric cylinder (3), a camera (4), and a platform mounting plate (5). One end of the electric cylinder (3) is connected to the platform mounting plate (5), and the camera (4) is mounted on the platform mounting plate (5). The roof inspection mechanism is integrated on the electric drive traveling device (2). The electric cylinder (3) extends upward to drive the camera (4) to be placed on the upper part of the roof equipment. The electric drive traveling device (2) moves along the direction of the guide rail (1) to observe the status of the equipment below. The electric drive traveling device (2) is equipped with a power battery (11). The stop (7) is equipped with a limit switch (8), an electronic lock (9), and a charging socket (12). The cable (6) is connected to the charging socket (12) to transmit power. After the electric drive traveling device (2) is locked to the stop (7), the power battery (11) can be charged. The roof inspection mechanism is equipped with a locking device and a guide rail (1) integrated on the canopy (10). The guide rail (1) is a rack and pinion guide rail. The integration method can be welding, bolting or riveting. The locking device includes a stop (7), a limit switch (8), an electronic lock (9) and a charging socket (12). The limit switch (8), the electronic lock (9) and the charging socket (12) are bolted to the stop (7). The limit switch (8) and the charging socket (12) are installed on the side of the stop (7) that contacts the electric drive traveling device (2). The electronic lock (9) is installed on the upper part of the side of the stop (7) that contacts the electric drive traveling device (2). The stop (7) is located at both ends of the guide rail (1). The limit switch (8) and the electronic lock (9) are installed on the stop (7). The electric drive traveling device (2) triggers the limit switch (8). The limit switch (8) instructs the electronic lock (9) to move. The electric drive traveling device (2) is locked in the track direction by its own fixing pin.
2. The self-inspection device for vehicle-mounted roof equipment used in railway infrastructure maintenance equipment according to claim 1, characterized in that: The electric cylinder (3) is connected to the platform mounting plate (5) to form a "П" shape. When the electric cylinder (3) extends and retracts, the platform mounting plate (5) can rise and fall accordingly. When fully retracted, the height S between the upper part of the platform mounting plate (5) and the lower part of the guide rail (1) is ≤500mm. When fully extended, the height L between the lower part of the platform mounting plate (5) and the rail surface is ≥48000mm. +50 mm.
3. The self-inspection device for vehicle-mounted roof equipment used in railway infrastructure maintenance equipment according to claim 1, characterized in that: The camera (4) is installed on the platform mounting plate (5) by bolt connection. There are no less than 3 cameras (4) in total. They are installed within ±450mm of the center of the platform mounting plate (5) with the guide rail (1) as the mounting surface reference. The total inspection range of the camera (4) can cover a width W≥3400mm.
4. The self-inspection device for vehicle-mounted roof equipment used in railway infrastructure maintenance equipment according to claim 1, characterized in that: The electric drive traveling device (2) can move along the direction of the guide rail (1). By being limited by the stops (7) at both ends of the guide rail (1), the electric drive traveling device (2) wraps around the guide rail (1). The electric drive traveling device (2) and the guide rail (1) form a "П" shape to prevent derailment. The guide rail (1) and the stops (7) are fixed to the top of the carport (10) by welding and bolting. The center distance between the left and right guide rails (1) is 2500±20mm.
5. The self-inspection device for vehicle-mounted roof equipment of railway infrastructure maintenance equipment according to claim 2, characterized in that: The electric cylinder (3) is a two-stage or multi-stage cylinder with a total of no less than 2 cylinders, which lift synchronously and have a total lifting stroke of ≥500mm.
6. The self-inspection device for vehicle-mounted roof equipment used in railway infrastructure maintenance equipment according to claim 1, characterized in that: The electric drive traveling device (2), electric cylinder (3), camera (4), limit switch (8) and electronic lock (9) all operate at DC24V. The cable (6) is connected to the electric drive traveling device (2), electric cylinder (3), camera (4), limit switch (8) and electronic lock (9) respectively to transmit power.
7. The self-inspection device for vehicle-mounted roof equipment of railway infrastructure maintenance equipment according to claim 1 or 4, characterized in that: The guide rail (1) and the electric drive traveling device (2) are made of stainless steel or aluminum alloy, while the electric cylinder (3) and the platform mounting plate (5) are made of aluminum alloy.
8. The self-inspection device for vehicle-mounted roof equipment of railway infrastructure maintenance equipment according to claim 1 or 6, characterized in that: The camera (4) can transmit video signals via wired or wireless means.
9. The self-inspection device for vehicle-mounted roof equipment of railway infrastructure maintenance equipment according to claim 1 or 6, characterized in that: The electronic lock (9) can transmit the unlocking signal via wired or wireless means.