A subway tunnel deformation detection device

Abstract

This utility model discloses a subway tunnel deformation detection device, belonging to the technical field of subway track maintenance equipment. It aims to solve the problems of low detection accuracy and limited detection points in traditional subway tunnel deformation detection devices, which are insufficient to meet tunnel inspection requirements. The device includes a traveling component, a detection component, and a cleaning component. The detection component is located on top of the traveling component, and the cleaning component is located on one side of the detection component. The detection component includes a hydraulic lifting mechanism located in the middle of the top of the traveling component, a support plate located on top of the hydraulic lifting mechanism, and a curved track located on top of the support plate. This utility model, through the design of the detection and cleaning components, enables multi-angle, all-around image acquisition of the curved tunnel top surface, improving the comprehensiveness of the inspection. Simultaneously, it cleans the tunnel surface before image acquisition, preventing dust and stains from affecting image quality and improving detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of railway track maintenance equipment technology, and more specifically, to a subway tunnel deformation detection device. Background Technology

[0002] After construction is completed, subway tunnels must undergo rigorous acceptance testing to ensure their structural safety and compliance, laying the foundation for subsequent operation. One of the core contents of the acceptance testing is to conduct a comprehensive investigation of the deformation of the tunnel's inner walls, including whether there are any issues such as settlement, cracks, protrusions, or curvature deviations that exceed design standards. These issues directly affect the structural stability of the tunnel and the safety of train operation.

[0003] Traditional tunnel acceptance and inspection methods have significant limitations: On the one hand, some inspection devices rely on distance measuring sensors deployed on the tunnel walls. However, the sensor installation positions are easily affected by factors such as residual construction stress and geological settlement, leading to insufficient accuracy of the inspection data and making it difficult to meet the stringent requirements for data accuracy in the acceptance standards. On the other hand, traditional devices have limited detection ranges and sparsely distributed monitoring points, making it difficult to cover the entire tunnel cross-section (especially key areas such as the arched roof and the junction of the sidewalls and the arch). This can easily lead to the omission of potential local deformation hazards and fail to fully reflect whether the tunnel construction quality meets the acceptance specifications. Based on the above problems, we propose a deformation detection device for subway tunnels. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a subway tunnel deformation detection device to solve the problems of low detection accuracy, few detection points, and difficulty in meeting the requirements of tunnel detection in traditional subway tunnel deformation detection devices.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a subway tunnel deformation detection device, including a walking component, a detection component, and a cleaning component; the detection component is disposed on the top of the walking component, and the cleaning component is disposed on one side of the detection component; the detection component includes a hydraulic lifting mechanism disposed in the middle of the top of the walking component, a support plate disposed on the top of the hydraulic lifting mechanism, a curved track disposed on the top of the support plate, a track trolley disposed on the surface of the curved track and moving along the curved track, a mounting plate disposed on the top of the track trolley, and an image acquisition camera disposed on the top of the mounting plate; the cleaning component includes a connecting rod disposed on one side of the track trolley, a fixing block disposed at one end of the connecting rod, a swing arm disposed on one side of the fixing block, a top plate disposed on the top of the swing arm, and a cleaning brush disposed on the top of the top plate; As the track trolley moves along the curved track, the image acquisition camera moves synchronously with the track trolley to capture images of the curved tunnel roof from different angles. During the movement of the track trolley, the connecting rod moves synchronously, which in turn drives the swing arm and cleaning brush to move along a fixed trajectory to wipe and clean the tunnel roof.

[0006] Preferably, the walking assembly includes a walking mechanism, a curved frame disposed on one side of the walking mechanism, a cross plate disposed at the bottom of the curved frame, a cleaning wipe disposed at the bottom of the cross plate, and a groove disposed at the bottom of the cleaning wipe. The groove has an "Ω" shaped cross section. The curved frame is detachably connected to the walking mechanism, and a spring is disposed between the cleaning wipe and the cross plate.

[0007] Preferably, the image acquisition camera is connected to the mounting plate via a rotating bracket. An angle adjustment knob is provided on one side of the rotating bracket, and a control module is provided in the middle of the top of the support plate. The control module is electrically connected to the image acquisition camera.

[0008] Preferably, the curvature of the curved track is the same as the curvature of the tunnel's arc-shaped top surface. Wheel grooves that cooperate with the track trolley are provided on both sides of the curved track. A drive motor is provided on one side of the track trolley. The output end of the drive motor extends into the interior of the track trolley and is provided with a drive wheel, which is located in the wheel groove.

[0009] Preferably, the top of the top plate is curved, and the top plate and the swing arm are detachably connected.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the design of detection and cleaning components, and by setting up a curved track and track trolley, enables the image acquisition camera to move along a trajectory consistent with the curvature of the tunnel roof, acquiring images of the curved tunnel roof from different angles, achieving multi-angle and all-round image acquisition of the curved tunnel roof, thus improving the comprehensiveness of the detection; during the movement of the track trolley, the connecting rod moves synchronously, and the connecting rod drives the swing arm and cleaning brush to move along a fixed trajectory, which can clean the tunnel surface before image acquisition, avoiding dust and stains from affecting image quality, improving detection accuracy, and also facilitating the subsequent installation of the pantograph, reducing the preparation procedures before operation.

[0011] 2. This utility model also designs a walking component. After the cleaning brush wipes the tunnel top surface, the debris will fall onto the surface of the track. During the movement of the walking mechanism in the walking component, the horizontal plate is moved synchronously through the curved frame. The bottom of the horizontal plate is equipped with a cleaning brush. The bottom of the cleaning brush is in contact with the subway track, which can clean the debris that falls onto the surface of the subway track, which helps to extend the service life of the track and improve the safety of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the walking component structure of this utility model; Figure 3 This is a schematic diagram of the detection component structure of this utility model; Figure 4 This is a schematic diagram of the cleaning component structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure at the connection between the curved track and the track trolley of this utility model; Figure 6 This is a schematic diagram of the working structure of the cleaning component of this utility model; Figure 7 This is a schematic diagram of the working structure of the walking component of this utility model.

[0013] The following are the labeling instructions in the diagram: 1. Walking assembly; 101. Walking mechanism; 102. Curved frame; 103. Horizontal plate; 104. Cleaning wipe; 105. Groove; 106. Spring; 2. Detection assembly; 201. Hydraulic lifting mechanism; 202. Support plate; 203. Curved track; 2031. Wheel groove; 204. Track trolley; 2041. Drive motor; 2042. Drive wheel; 205. Mounting plate; 206. Rotating frame; 207. Image acquisition camera; 208. Control module; 3. Cleaning assembly; 301. Connecting rod; 302. Fixing block; 303. Swing arm; 304. Top plate; 305. Cleaning brush. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: This utility model relates to a subway tunnel deformation detection device, comprising a walking component 1, a detection component 2, and a cleaning component 3; the detection component 2 is fixedly connected to the top of the walking component 1, and the cleaning component 3 is fixedly connected to one side of the detection component 2; the detection component 2 includes a hydraulic lifting mechanism 201 fixedly connected to the middle of the top of the walking component 1, a support plate 202 fixedly connected to the top of the hydraulic lifting mechanism 201, a curved track 203 fixedly connected to the top of the support plate 202, a track trolley 204 slidably connected to the surface of the curved track 203 and moving along the curved track 203, a mounting plate 205 fixedly connected to the top of the track trolley 204, and an image acquisition camera 207 mounted on the top of the mounting plate 205, and the hydraulic lifting mechanism... Mounted at the top center of the walking assembly 1, component 201 can adapt to subway tunnels of varying heights by adjusting its own height, enhancing the versatility of the detection device and enabling it to perform detection operations in tunnels of various specifications. The support plate 202 supports other detection components 2, such as the curved track 203 and control module 208, providing them with a stable mounting platform and ensuring the relative positions of each component are fixed during the detection process, thus guaranteeing the accuracy of the detection data. The curved track 203 provides a specific running trajectory for the track trolley 204, allowing it to move along a path consistent with the curvature of the tunnel roof, thereby driving the image acquisition camera 207 to achieve multi-angle, all-around image acquisition of the curved tunnel roof, improving the detection efficiency. To ensure comprehensiveness and accuracy, the track trolley 204 moves along the curved track 203, serving as the moving carrier for the image acquisition camera 207. It moves precisely along the track's trajectory, ensuring the positional accuracy of the image acquisition camera 207 during image acquisition. The mounting plate 205 is used to mount the image acquisition camera 207, ensuring its stability during operation. The image acquisition camera 207 acquires images of the curved tunnel roof from different angles. The acquired image data will be used for subsequent analysis of whether the tunnel is deformed and the degree of deformation, making it the core detection component of the detection device. The cleaning component 3 includes a connecting rod 301 fixedly connected to one side of the track trolley 204, and a fixed connecting rod... A fixed block 302 is attached to one end of the connecting rod 301, a swing arm 303 is fixedly connected to one side of the fixed block 302, a top plate 304 is snapped onto the top of the swing arm 303, and a cleaning brush 305 is fixedly connected to the top of the top plate 304. The connecting rod 301 connects the track trolley 204 and the fixed block 302. When the track trolley 204 moves along the curved track 203, the connecting rod 301 can synchronously drive the fixed block 302, the swing arm 303 and the top plate 304 to move. The fixed block 302 serves to connect the connecting rod 301 and the swing arm 303. Under the drive of the connecting rod 301, the swing arm 303 swings with the fixed block 302 as the fulcrum. The top plate 304 is used to install the cleaning brush 305, which is used to wipe and clean the tunnel roof.This invention, through the design of a detection component 2 and a cleaning component 3, and by setting up a curved track 203 and a track trolley 204, enables the image acquisition camera 207 to move along a trajectory consistent with the curvature of the tunnel roof, acquiring images of the curved tunnel roof from different angles. This achieves multi-angle, all-around image acquisition of the curved tunnel roof, improving the comprehensiveness of the detection. During the movement of the track trolley 204, the connecting rod 301 moves synchronously, which in turn drives the swing arm 303 and the cleaning brush 305 to move along a fixed trajectory. This cleans the tunnel surface before image acquisition, preventing dust and stains from affecting image quality and improving detection accuracy. It also facilitates subsequent pantograph installation, reducing pre-operation preparation procedures.

[0015] Specifically, the walking component 1 includes a walking mechanism 101, a curved frame 102 inserted into one side of the walking mechanism 101, a horizontal plate 103 fixedly connected to the bottom of the curved frame 102, a cleaning wipe 104 adhered to the bottom of the horizontal plate 103, and a groove 105 formed at the bottom of the cleaning wipe 104. The groove 105 has an "Ω" shaped cross-section. The curved frame 102 and the walking mechanism 101 are detachably connected. A spring 106 is installed between the cleaning wipe 104 and the horizontal plate 103. The walking mechanism 101 serves as the power carrier for the movement of the entire device. It can move smoothly along the subway track, providing a basis for the movement of the detection component 2 and the cleaning component 3 in the tunnel, ensuring that the detection operation can cover different areas of the tunnel. The curved frame 102 connects the walking mechanism 101 and the horizontal plate 103, and the horizontal plate 103 is installed at the bottom of the curved frame 102. The cleaning brush 104 serves to fix and support the cleaning brush 104, ensuring its stable position during operation and effectively performing its cleaning function. During the movement of the device, the cleaning brush 104 cleans the subway track, removing dust, debris, etc., preventing these impurities from affecting subsequent subway operation and reducing malfunctions caused by impurities. This invention also incorporates a walking component 1. Since debris falls onto the track surface after the cleaning brush 305 wipes the tunnel ceiling, the walking mechanism 101 in the walking component 1 drives the device to move, simultaneously moving the horizontal plate 103 via the curved frame 102. The bottom of the horizontal plate 103 is equipped with the cleaning brush 104, which fits against the subway track, cleaning debris that falls onto the track surface, helping to extend the track's service life and improve operational safety.

[0016] Specifically, the image acquisition camera 207 is connected to the mounting plate 205 via a rotating bracket 206. An angle adjustment knob is installed on one side of the rotating bracket 206, which is used to adjust the angle of the image acquisition camera 207. A control module 208 is installed in the middle of the top of the support plate 202. The control module 208 includes a processing module, a conversion module, a power module, a storage module, and a wireless transmission module. The conversion module converts the image data acquired by the image acquisition camera 207 into circuit signals. The processing module ensures that the signals can be processed by subsequent circuits. Finally, the signals are transmitted to the backend for detection through the wireless transmission module. The storage module stores the data. The power module is used for power configuration, such as the technical solution provided by Chinese invention patent with publication number CN101936714B. This part is conventional technology and will not be explained further here.

[0017] It is worth mentioning that the curvature of the curved track 203 is the same as the curvature of the tunnel's arc-shaped top surface, enabling the track trolley 204 to move along a path with the same curvature as the tunnel's top surface. The curved track 203 has wheel grooves 2031 on both sides that cooperate with the track trolley 204. A drive motor 2041 is installed on one side of the track trolley 204, and the output end of the drive motor 2041 extends into the track trolley 204, where a drive wheel 2042 is provided. The drive wheel 2042 is located in the wheel groove 2031, which facilitates the movement of the track trolley 204 along the curved track 203.

[0018] It is worth noting that the top of the top plate 304 is curved, which makes it easy for the top plate 304 to fit against the tunnel roof. The top plate 304 and the swing arm 303 are detachably connected, which makes it easy to replace the cleaning brush 305.

[0019] Working Principle: This embodiment provides a subway tunnel deformation detection device. In use, the device is placed on a track inside the tunnel. The height of the support plate 202 is adjusted via a hydraulic lifting mechanism 201 according to the tunnel height, ensuring the curved track 203 maintains an appropriate distance from the tunnel roof. The traveling mechanism 101 is activated, and the device slowly moves along the tunnel. Upon reaching the detection position, the track trolley 204 is controlled to move along the curved track 203, and the image acquisition camera 207 follows the movement, capturing multi-angle images of the tunnel roof. The image data is transmitted to the backend processing system via the control module 208. During the movement of the track trolley 204, the connecting rod 301 drives the swing arm 303 and the cleaning brush 305 to move synchronously, wiping and cleaning the tunnel roof to ensure the image acquisition camera 207 captures clear surface images. The backend processing system analyzes and processes the acquired images to determine whether the tunnel is deformed and the degree of deformation. When the traveling mechanism 101 moves to the next detection point, it drives the cleaning brush 104 to clean the debris generated at the previous detection point.

[0020] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A deformation detection device for subway tunnels, characterized in that, The system includes a walking assembly (1), a detection assembly (2), and a cleaning assembly (3); the detection assembly (2) is located on top of the walking assembly (1), and the cleaning assembly (3) is located on one side of the detection assembly (2); the detection assembly (2) includes a hydraulic lifting mechanism (201) located in the middle of the top of the walking assembly (1), a pallet (202) located on top of the hydraulic lifting mechanism (201), a curved track (203) located on top of the pallet (202), and a moving track (203) located on the surface of the curved track (203) along the curved track (203). The moving track trolley (204), the mounting plate (205) set on the top of the track trolley (204), and the image acquisition camera (207) set on the top of the mounting plate (205); the cleaning component (3) includes a connecting rod (301) set on one side of the track trolley (204), a fixing block (302) set on one end of the connecting rod (301), a swing arm (303) set on one side of the fixing block (302), a top plate (304) set on the top of the swing arm (303), and a cleaning brush (305) set on the top of the top plate (304); During the process of the track trolley (204) moving along the curved track (203), the image acquisition camera (207) moves synchronously with the track trolley (204) to acquire images of the curved tunnel top surface from different angles; during the movement of the track trolley (204), the connecting rod (301) moves synchronously, and the connecting rod (301) drives the swing arm (303) and the cleaning brush (305) to move along a fixed trajectory to wipe and clean the tunnel top surface.

2. The subway tunnel deformation detection device according to claim 1, characterized in that, The walking assembly (1) includes a walking mechanism (101), a curved frame (102) disposed on one side of the walking mechanism (101), a horizontal plate (103) disposed at the bottom of the curved frame (102), a cleaning wipe (104) disposed at the bottom of the horizontal plate (103), and a groove (105) disposed at the bottom of the cleaning wipe (104). The groove (105) has an "Ω" shaped cross section. The curved frame (102) is detachably connected to the walking mechanism (101). A spring (106) is disposed between the cleaning wipe (104) and the horizontal plate (103).

3. The subway tunnel deformation detection device according to claim 2, characterized in that, The image acquisition camera (207) is connected to the mounting plate (205) via a rotating bracket (206). An angle adjustment knob is provided on one side of the rotating bracket (206). A control module (208) is provided in the middle of the top of the tray (202), and the control module (208) is electrically connected to the image acquisition camera (207).

4. The subway tunnel deformation detection device according to claim 3, characterized in that, The curvature of the curved track (203) is the same as that of the arc-shaped top surface of the tunnel. Wheel grooves (2031) that cooperate with the track trolley (204) are provided on both sides of the curved track (203). A drive motor (2041) is provided on one side of the track trolley (204). The output end of the drive motor (2041) extends into the track trolley (204) and is provided with a drive wheel (2042), and the drive wheel (2042) is located in the wheel groove (2031).

5. A subway tunnel deformation detection device according to claim 4, characterized in that, The top of the top plate (304) is curved, and the top plate (304) and the swing arm (303) are detachably connected.

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