A metro contact network suspension state visualized intelligent detection device
By designing a visual intelligent detection device for the suspension status of subway catenary, a camera module is used to collect video streams of the catenary wire and display them in real time. This solves the problems of inconvenience and danger in traditional manual inspection and enables convenient and safe inspection of the surface condition of the catenary wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN URBAN RAIL CONSULTING CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-05
AI Technical Summary
The current method of inspecting subway overhead contact lines mainly relies on manual methods, which is inconvenient and dangerous, and cannot meet the actual needs.
A visual intelligent detection device for the suspension status of subway catenary was designed. It uses a camera module to collect video streams around the catenary line and displays them in real time on a visual display screen. The device is suspended on the catenary line by a lifting plate and guide wheel structure for detection.
It enables real-time visualization of the surface condition of the contact wire, improving the convenience and safety of inspection and reducing the need for manual inspection from heights.
Smart Images

Figure CN224329506U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of visual monitoring technology, and more specifically, to a visual intelligent detection device for the suspension status of subway overhead contact lines. Background Technology
[0002] With the rapid development of urban rail transit, subways, as an efficient and convenient mode of public transportation, are playing an increasingly important role in the urban transportation system.
[0003] As a core component of the subway power supply system, the overhead contact line bears the crucial responsibility of stably delivering electrical energy to trains; its importance is self-evident. During train operation, the pantograph and the overhead contact line maintain continuous close contact and generate relative friction. The suspension state of the contact line directly affects the contact effectiveness between the two, thus playing a decisive role in power supply quality and train operation safety. Any abnormality in the suspension state of the overhead contact line, such as wire wear, loose or misaligned components, can lead to serious problems such as power outages and pantograph-catenary malfunctions, causing train delays or even cancellations, resulting in significant inconvenience to urban traffic and residents' lives.
[0004] Therefore, it is essential to inspect and maintain the overhead contact system.
[0005] In the early days, subway overhead contact line inspection mainly relied on manual methods. For example, maintenance workers would sit on maintenance vehicles and inspect the surface of the contact line with their naked eyes as the vehicles moved along the subway tracks. This method was not only inconvenient but also dangerous. Traditional manual inspection methods were increasingly unable to meet the actual needs. Utility Model Content
[0006] The purpose of this utility model embodiment is to provide a visual intelligent detection device for the suspension status of subway catenary, so as to at least solve the technical problem of inconvenient detection in existing detection technologies.
[0007] To achieve the above objectives, the present invention provides the following technical solution.
[0008] According to one embodiment of the present invention, a visual intelligent detection device for the suspension status of subway overhead contact lines is provided, comprising:
[0009] The support has a fixed guide wheel that is rotatably mounted on it, and a movable guide wheel located directly above the fixed guide wheel is mounted on the lifting plate.
[0010] A visual display screen is used to display and store the video stream acquired by the visual inspection device in real time. The visual inspection device includes a first module bracket and a second module bracket. A first camera module a and a first camera module b are respectively arranged on the first module bracket. A second camera module a and a second camera module b are respectively arranged on the second module bracket. When the contact wire is placed between the movable guide wheel and the fixed guide wheel, the first camera module a, the first camera module b, the second camera module a, and the second camera module b are respectively located around the contact wire to acquire the video stream of the surrounding surface of the contact wire.
[0011] Preferably, a support frame is fixedly installed on the support;
[0012] An electric telescopic rod is installed on the top plate of the support frame to adjust the height of the lifting platform.
[0013] Preferably, a U-shaped frame is fixedly installed on the lower surface of the lifting plate, and the movable guide wheel is rotatably mounted on the U-shaped frame.
[0014] Preferably, a limit baffle is fixedly installed on one side of the U-shaped frame;
[0015] The limiting baffle is slidably installed in the sliding groove on the inner wall of the side plate of the support frame. The limiting baffle moves synchronously with the lifting plate as it moves up and down, so as to prevent the lifting plate from deviating when it moves up and down.
[0016] Preferably, the first module bracket is mounted on the extension frame, and the extension frame is fixedly mounted on the U-shaped frame;
[0017] The second module bracket is installed on the support.
[0018] Preferably, the support frame is fixedly installed at the top of the support sleeve rod, and the support sleeve rod is slidably fitted onto the support base rod; wherein the support base rod and the support sleeve rod are fixed by bolt connection.
[0019] Preferably, the visual display screen is mounted on the bottom of the support base.
[0020] Compared with the prior art, the technical advantage of the present invention, a visual intelligent detection device for the suspension status of subway catenary, is that when detecting the catenary wire, the catenary wire is placed between the movable guide wheel and the fixed guide wheel. By moving the lifting plate downward, the catenary wire can pass through the area between the fixed guide wheel and the movable guide wheel. This area can prevent the catenary wire from detaching, so that the detection device of this embodiment can be suspended on the catenary wire.
[0021] The support sleeve and the support base provided in this embodiment form a long rod structure, which is used by maintenance personnel to hold the rod inspection device and hang the inspection device on the contact wire. The visual display screen is used to display and store the video stream collected by the visual inspection device in real time. When the contact wire is placed between the movable guide wheel and the fixed guide wheel, the first camera module a, the first camera module b, the second camera module a and the second camera module b are respectively located around the contact wire to collect the video stream of the surface of the contact wire. The collected video stream is displayed on the visual display screen in real time, so that maintenance personnel can directly see the surface condition of the contact wire. Attached Figure Description
[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.
[0023] In the attached diagram:
[0024] Figure 1 This is a three-dimensional structural diagram of a visual intelligent detection device for the suspension status of a subway overhead contact line according to the present invention;
[0025] Figure 2 A partial front view of the visual intelligent detection device provided by this utility model;
[0026] Figure 3 for Figure 2 A 3D schematic diagram of the provided visual intelligent detection device;
[0027] Figure 4 for Figure 2 Another perspective 3D view of the provided visual intelligent detection device;
[0028] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.
[0029] The above figures include the following reference numerals:
[0030] 1. Supporting base pole; 2. Visual display screen; 3. Supporting sleeve pole; 4. Supporting frame; 5. Support; 6. Contact wire; 7. Fixed guide wheel; 8. Visual inspection device; 81. First module bracket; 811. First camera module a; 812. First camera module b; 82. Second module bracket; 821. Second camera module a; 822. Second camera module b; 9. Lifting plate; 91. Electric telescopic pole; 92. Movable guide wheel; 93. Limiting baffle; 94. U-shaped frame; 95. Extension frame. Detailed Implementation
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0033] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0034] like Figure 1 The diagram shown is a structural diagram of a subway catenary suspension status visualization intelligent detection device provided in one embodiment of this utility model;
[0035] The detection device provided in this embodiment includes a support 5, on which a support frame 4 is fixedly mounted. An electric telescopic rod 91 for adjusting the height of the lifting plate 9 is mounted on the top plate of the support frame 4. In this embodiment, the electric telescopic rod 91 is used to push the lifting plate 9 to move vertically, thereby adjusting the height of the lifting plate 9.
[0036] In this embodiment, a fixed guide wheel 7 is also rotatably provided on the support 5. The fixed guide wheel 7 can be driven to rotate on the support 5 by a micro servo motor.
[0037] Accordingly, in this embodiment, the lifting plate 9 is provided with a movable guide wheel 92 located directly above the fixed guide wheel 7;
[0038] It is understood that the movable guide wheel 92 in this embodiment is also rotatably mounted on the lifting plate 9. When the contact wire 6 is being tested, the contact wire 6 is placed between the movable guide wheel 92 and the fixed guide wheel 7. By moving the lifting plate 9 downward, the contact wire 6 can pass through the area between the fixed guide wheel 7 and the movable guide wheel 92. This area can prevent the contact wire 6 from detaching, so that the testing device in this embodiment can be suspended on the contact wire 6.
[0039] Please continue to refer to Figures 1-3 In this embodiment, a U-shaped frame 94 is fixedly provided on the lower surface of the lifting plate 9, and the movable guide wheel 92 is rotatably mounted on the U-shaped frame 94;
[0040] In one implementation, a limit baffle 93 is fixedly installed on one side of the U-shaped frame 94. The limit baffle 93 is slidably installed in the slide groove on the inner wall of the side plate of the support frame 4. The limit baffle 93 moves synchronously with the lifting plate 9 as it moves up and down, so as to prevent the lifting plate 9 from deviating when it moves up and down.
[0041] Please continue to refer to Figure 1 In this embodiment, the support frame 4 is fixedly installed on the top of the support sleeve rod 3, and the support sleeve rod 3 is slidably sleeved on the support bottom rod 1; wherein, the support bottom rod 1 and the support sleeve rod 3 are fixed by bolt connection. In specific implementation, the sleeve length between the support sleeve rod 3 and the support bottom rod 1 can be adjusted as needed and then fixed by bolt.
[0042] In this embodiment, the support sleeve rod 3 and the support base rod 1 form a long rod structure, which is used by maintenance personnel to hold the rod and test the device, and hang the test device on the contact wire 6.
[0043] For further details, please refer to [link / reference]. Figure 1 In this embodiment, a visual display screen 2 is installed at the bottom of the support rod 1. The visual display screen 2 is used to display and store the video stream collected by the visual inspection device 8 in real time.
[0044] like Figures 1-5 In one implementation of this utility model, the visual inspection device 8 of this embodiment includes a first module bracket 81 and a second module bracket 82, wherein the first module bracket 81 is mounted on an extension frame 95, and the extension frame 95 is fixedly mounted on a U-shaped frame 94; the second module bracket 82 is mounted on a support 5.
[0045] Specifically, in one implementation, the first module bracket 81 is respectively provided with a first camera module a811 and a first camera module b812; the second module bracket 82 is respectively provided with a second camera module a821 and a second camera module b822. When the contact wire 6 is placed between the movable guide wheel 92 and the fixed guide wheel 7, the first camera module a811, the first camera module b812, the second camera module a821 and the second camera module b822 are respectively located around the contact wire 6, and are used to collect video streams from the surrounding surface of the contact wire 6.
[0046] It is understood that in this embodiment, the collected video stream is displayed on the visual display screen in real time, which makes it convenient for maintenance personnel to directly see the surface condition of the contact wire 6 without the need for maintenance personnel to climb up to inspect the surface of the contact wire 6.
[0047] The above solutions are merely illustrative examples of preferred embodiments, but are not limited thereto. When implementing this invention, appropriate substitutions and / or modifications can be made according to the user's needs.
[0048] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.
[0049] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.
Claims
1. A visual intelligent detection device for the suspension status of subway overhead contact lines, characterized in that, include: Support (5), and a fixed guide wheel (7) is rotatably mounted on the support (5). The movable guide wheel (92) located directly above the fixed guide wheel (7) is mounted on the lifting plate (9). A visual display screen (2) is used to display and store the video stream collected by the visual inspection device (8) in real time. The visual inspection device (8) includes a first module bracket (81) and a second module bracket (82). The first module bracket (81) is provided with a first camera module a (811) and a first camera module b (812). The second module bracket (82) is provided with a second camera module a (821) and a second camera module b (822). When the contact wire (6) is placed between the movable guide wheel (92) and the fixed guide wheel (7), the first camera module a (811), the first camera module b (812), the second camera module a (821) and the second camera module b (822) are located around the contact wire (6) to collect the video stream of the surface around the contact wire (6).
2. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 1, characterized in that, A support frame (4) is fixedly installed on the support (5); An electric telescopic rod (91) for adjusting the height of the lifting plate (9) is provided on the top plate of the support frame (4).
3. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 2, characterized in that, A U-shaped frame (94) is fixedly installed on the lower surface of the lifting plate (9), and the movable guide wheel (92) is rotatably mounted on the U-shaped frame (94).
4. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 3, characterized in that, A limit baffle (93) is fixedly installed on one side of the U-shaped frame (94); The limiting baffle (93) is slidably set in the groove on the inner wall of the side plate of the support frame (4).
5. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 4, characterized in that, The first module bracket (81) is mounted on the extension frame (95), and the extension frame (95) is fixedly mounted on the U-shaped frame (94); The second module bracket (82) is installed on the support (5).
6. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 5, characterized in that, The support frame (4) is fixedly installed on the top of the support sleeve (3), and the support sleeve (3) slides up and down on the support base rod (1); wherein the support base rod (1) and the support sleeve (3) are fixed by bolt connection.
7. The intelligent visual detection device for the suspension status of subway overhead contact lines according to claim 6, characterized in that, The visual display screen (2) is installed at the bottom of the support base rod (1).