A segment disease detection and acquisition device mounted on a tunnel vehicle

Abstract

The utility model belongs to the technical field of segment disease gathers phase, concretely is a kind of segment disease detection gathers phase device on the tunnel car, including T type joint strip, the bottom surface of T type joint strip is fixedly connected with sealing sleeve shell, the top inboard wall surface of sealing sleeve shell is separately provided with industrial camera and light supplementing equipment, the inboard wall surface of both sides of sealing sleeve shell and located bottom edge position is fixedly connected with fixed strip one, the bottom surface of fixed strip one is provided with elastic positioning strip. When horizontal transport vehicle moves to tunnel portal, industrial camera and light supplementing equipment are adjusted in angle, so that it can cover the range of 300 degrees of tunnel cross section in shooting range, then vehicle goes in and travels at uniform speed, industrial camera starts to collect tunnel inner wall image, video and stores in server, server calls detection module in YOLO algorithm, and real-time identification is carried out using the trained light-weight YOLO model.

Description

Technical Field

[0001] This utility model belongs to the field of segment defect sampling technology, specifically a segment defect detection and sampling device mounted on a tunnel vehicle. Background Technology

[0002] During operation, subway shield tunnels are often affected by geological conditions, external loads (such as adjacent construction projects), and groundwater fluctuations, resulting in defects such as segment cracks, water leakage, misalignment, convergence deformation, uneven settlement, and separation of the track bed from the segments. These defects seriously threaten the safe operation of the subway. In particular, when subway tunnels pass under major water conservancy projects such as the South-to-North Water Diversion Project, changes in water and soil pressure during the construction and operation of the project may further exacerbate the risk of tunnel structural deformation.

[0003] A patent with publication number CN120121110A discloses a multi-source data fusion detection vehicle and method for a shield tunnel passing under the South-to-North Water Diversion Project canal. The detection vehicle is equipped with an industrial camera, lidar, accelerometer, angular velocity sensor, and data acquisition device. The industrial camera and lidar collect surface data of the subway shield tunnel, which is then fused and processed by the data acquisition device to detect surface defects such as segment cracks, water leakage, misalignment, convergence, and deformation. The accelerometer is installed on the bearing bracket of the bogie of the detection vehicle to collect the acceleration in the vertical direction of the two bearing brackets. The data acquisition device analyzes the amplitude, phase difference, and cross-correlation coefficient of the two acceleration curves to determine whether local settlement has occurred in the subway shield tunnel and whether the track bed has detached from the tunnel segments. By integrating the acceleration signal of the local settlement section twice over time, the amplitude of the local settlement of the subway shield tunnel is calculated, thus solving the technical problem of comprehensive and rapid detection of defects in subway shield tunnels.

[0004] In current technologies, existing tunnel segment defect detection and acquisition devices are exposed to the outside environment during inspection. The air inside the tunnel contains a large amount of mineral dust particles, some of which are very fine. As the detection equipment operates, the dust in the air penetrates into the equipment and accumulates on the surface of the circuit board, affecting heat dissipation. At the same time, some mineral powder inside the tunnel contains metal powder. This metal powder, due to vibration, moisture, and oxidation, can eventually lead to short circuits, corrosion, or intermittent failures.

[0005] Therefore, a segment defect detection and sampling device mounted on a tunnel vehicle is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned problems, a segment defect detection and sampling device mounted on a tunnel vehicle is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The segment defect detection and imaging device mounted on a tunnel vehicle according to this utility model includes a T-shaped clamping strip. A sealing sleeve is fixedly connected to the bottom surface of the T-shaped clamping strip. An industrial camera and a supplementary lighting device are respectively arranged on the top inner wall of the sealing sleeve. A fixing strip is fixedly connected to the inner walls on both sides of the sealing sleeve and at the bottom edge. An elastic positioning strip is provided on the bottom surface of the fixing strip. Two sets of fixing plates are symmetrically fixedly connected to the outer surface of the sealing sleeve. A pull rod is movably sleeved on the outer surface of the fixing plate. A docking positioning head is fixedly connected to one end of the pull rod. An inclined groove is opened on one end surface of the docking positioning head inside the sealing sleeve. An elastic buffer wire is movably sleeved on the outer surface of the pull rod. The two ends of the elastic buffer wire are respectively movably overlapped on the docking positioning head and the outer surface of the fixing plate.

[0008] Preferably, the bottom surface of the elastic positioning strip is movably overlapped with the top surface of the acrylic transparent plate, and the bottom surface of the acrylic transparent plate is movably overlapped with the top surface of the docking positioning head.

[0009] Preferably, four sets of fixing strips are symmetrically fixedly connected to the two sides of the sealing sleeve, and elastic wires are fixedly connected to the bottom surface of the fixing strips.

[0010] Preferably, swing arm plates are symmetrically swing-connected to both sides of the sealing sleeve, and a squeezing roller is provided on one end of the swing arm plate. One end of the elastic wire is fixedly connected to the top outer surface of the swing arm plate.

[0011] Preferably, a snap-fit ​​block is movably sleeved on the outer surface of the T-shaped snap-fit ​​strip, the outer surface of the snap-fit ​​block is fixedly installed on the surface of the lifting plate, and a threaded rod is movably sleeved on the outer surface of the lifting plate.

[0012] Preferably, an overlapping positioning disc is hinged and movably sleeved on the outer surface of the other end of the threaded rod, a motor is fixedly installed on the bottom surface of the overlapping positioning disc, and a transmission toothed ring is fixedly connected to the output end of the motor and movably overlapped on the top outer surface of the overlapping positioning disc.

[0013] Preferably, a transmission toothed disc is movably adjusted on the top surface of the overlapping positioning disc and threadedly hinged to the outer surface of the threaded rod. A mating sleeve is fixedly connected to the outer surface of the overlapping positioning disc and located at the four edges. Bolts are provided on the outer surface of the mating sleeve.

[0014] Preferably, a snap-fit ​​post is movably fitted onto the inner wall of the docking sleeve, one end of the snap-fit ​​post is fixedly connected to a horizontal transport vehicle, and a track bar is provided on the bottom surface of the horizontal transport vehicle.

[0015] The beneficial effects of this utility model are: This utility model provides a segment defect detection and image acquisition device mounted on a tunnel vehicle. When the horizontal transport vehicle moves to the tunnel entrance, the angle of the industrial camera and supplementary lighting equipment is adjusted so that the shooting range can cover a 300-degree range of the tunnel cross section. Then, after the vehicle enters, it travels at a constant speed. The industrial camera begins to collect images and videos of the tunnel inner wall and stores them in the server. The server calls the detection module in the YOLO algorithm and uses a pre-trained lightweight YOLO model for real-time identification. At the same time, the feedback results of the positioning beacon are stored in the server. The server outputs the identified defect results and marks the mileage. This utility model provides a segment defect detection and imaging device mounted on a tunnel vehicle. Before the horizontal transport vehicle slides on the top surface of the track, the docking sleeve is aligned with the surface of the clamping post, and the docking sleeve is fixed to the outer surface of the clamping post with bolts. The T-shaped clamping strip is then fitted onto the surface of the clamping block. During operation, the motor rotates the transmission clamping ring, which in turn drives the transmission clamping disc to rotate. The transmission clamping disc then drives the motor to move up and down on the surface of the overlapping positioning plate, allowing the industrial camera and supplementary lighting equipment to be brought closer to the track for close-range observation and inspection. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the docking sleeve in this utility model; Figure 3 This is a three-dimensional structural diagram of the overlapping positioning disc in this utility model; Figure 4 This is a cross-sectional three-dimensional structural diagram of the T-shaped snap-fit ​​strip in this utility model; Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the sealing sleeve in this utility model.

[0017] Legend: 11. Track bar; 12. Horizontal transport vehicle; 13. Snap-fit ​​post; 14. Butt sleeve; 141. Bolt; 142. Overlap positioning plate; 143. Motor; 144. Transmission toothed ring; 145. Transmission toothed disc; 146. Threaded rod; 147. Lifting plate; 148. Snap-fit ​​block; 149. T-shaped snap-fit ​​strip; a1. Sealing sleeve; a2. Industrial camera; a3. Lighting equipment; a4. Fixing strip one; a5. Elastic positioning strip; a6. Acrylic transparent plate; a7. Fixing plate; a8. Pull-out rod; a9. Elastic buffer wire; a10. Butt positioning head; a11. Inclined groove surface; a12. Fixing strip two; a13. Elastic wire; a14. Swing arm plate; a15. Extrusion roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] Please see Figure 2 - Figure 5 This utility model provides a segment defect detection and imaging device mounted on a tunnel vehicle, including a T-shaped clamping strip 149. A sealing sleeve a1 is fixedly connected to the bottom surface of the T-shaped clamping strip 149. An industrial camera a2 and a supplementary lighting device a3 are respectively arranged on the top inner wall of the sealing sleeve a1. A fixing strip a4 is fixedly connected to the inner walls on both sides of the sealing sleeve a1 and at the bottom edge. An elastic positioning strip a5 is arranged on the bottom surface of the fixing strip a4. Two sets of fixing plates a7 are symmetrically fixedly connected to the outer surface of the sealing sleeve a1. A pull rod a8 is movably sleeved on the outer surface of the fixing plate a7. A docking positioning head a10 is fixedly connected to one end of the pull rod a8. A slanted groove surface a11 is opened on one end surface of the docking positioning head a10 and inside the sealing sleeve a1. An elastic buffer wire a9 is movably sleeved on the outer surface of the pull rod a8. The two ends of the elastic buffer wire a9 are respectively movably overlapped on the docking positioning head a10 and the outer surface of the fixing plate a7. During operation, the industrial camera a2 and the supplementary lighting device a3 are placed inside the sealed housing a1. Then, the acrylic transparent plate a6 is moved and fitted into the sealed housing a1. At this point, the edges of the acrylic transparent plate a6 press against the inclined groove surface a11 on one end of the docking positioning head a10, and the inclined surface of the groove surface a11 pushes the docking positioning head a10 outwards, thus moving the acrylic transparent plate a6 into the sealed housing a1. At this time, the docking positioning head a10, pushed by the elastic buffer wire a9, will... The new push is inserted into the sealing sleeve a1, and the docking positioning head a10 overlaps and supports the side of the acrylic transparent plate a6. At the same time, after the acrylic transparent plate a6 enters the sealing sleeve a1, the elastic positioning strip a5 on the bottom surface of the fixing strip a4 is pressed and adhered to the surface of the acrylic transparent plate a6, thereby increasing the compressive force between the acrylic transparent plate a6 and the docking positioning head a10. At the same time, the adhesion between the acrylic transparent plate a6 and the wall of the sealing sleeve a1 is used to prevent external dust from entering the interior of the sealing sleeve a1. When the industrial camera a2, the supplementary lighting equipment a3, and the acrylic transparent plate a6 are replaced or repaired, simply pull the pull rod a8 on one side of the sealing housing a1 and pull the docking positioning head a10 on one end of the pull rod a8 out of the sealing housing a1. When the bottom surface of one side of the acrylic transparent plate a6 is no longer supported, the acrylic transparent plate a6 will fall down at an angle. The pull rod a8 will move horizontally under the constraint of the fixed plate a7. After the pull rod a8 is released, the docking positioning head a10 will be pushed back into the sealing housing a1 by the elastic buffer wire a9.

[0021] Furthermore, such as Figures 1 to 4As shown, the bottom surface of the elastic positioning strip a5 is movably overlapped with the top surface of the acrylic transparent plate a6, and the bottom surface of the acrylic transparent plate a6 is movably overlapped with the top surface of the docking positioning head a10. Four sets of fixing strips a12 are symmetrically fixedly connected to the two sides of the sealing sleeve a1. Elastic wires a13 are fixedly connected to the bottom surface of the fixing strips a12. An overlapping positioning plate 142 is hinged and movably sleeved on the outer surface of the other end of the threaded rod 146. A motor 143 is fixedly installed on the bottom surface of the overlapping positioning plate 142. A movable overlapping plate is fixedly connected to the output end of the motor 143. A transmission toothed ring 144 is attached to the outer surface of the top of the overlapping positioning plate 142. A transmission toothed disc 145 is movably adjusted on the top surface of the overlapping positioning plate 142 and is threadedly hinged to the outer surface of the threaded rod 146. A docking sleeve 14 is fixedly connected to the outer surface of the overlapping positioning plate 142 and located at the four edges. A bolt 141 is provided on the outer surface of the docking sleeve 14. A locking post 13 is movably sleeved on the inner wall of the docking sleeve 14. A horizontal transport vehicle 12 is fixedly connected to one end of the locking post 13. A track bar 11 is provided on the bottom surface of the horizontal transport vehicle 12.

[0022] During operation, before the horizontal transport vehicle 12 slides on the top surface of the track 11, the docking sleeve 14 is connected to the surface of the snap-fit ​​post 13, and the docking sleeve 14 is fixed to the outer surface of the snap-fit ​​post 13 by bolts 141. The T-shaped snap-fit ​​strip 149 is fitted onto the surface of the snap-fit ​​block 148. During operation, the motor 143 rotates the transmission snap-fit ​​ring 144, which in turn drives the transmission snap-fit ​​disc 145 to rotate. The transmission snap-fit ​​disc 145 drives the motor 143 to move up and down on the surface of the overlapping positioning disc 142, thereby bringing the industrial camera a2 and the supplementary lighting equipment a3 closer to the track 11, allowing for close-range observation and inspection of the track 11. When the horizontal transport vehicle 12 moves to the tunnel entrance, the angles of the industrial camera a2 and the supplementary lighting device a3 are adjusted so that the shooting range can cover a 300-degree range of the tunnel cross section. Then, after the vehicle enters, it travels at a constant speed. The industrial camera a2 begins to collect images and videos of the tunnel inner wall and stores them in the server. The server calls the detection module in the YOLO algorithm and uses a pre-trained lightweight YOLO model for real-time recognition. At the same time, the feedback results of the positioning beacon are stored in the server. The server outputs the identified defects and marks the mileage.

[0023] Furthermore, such as Figures 2 to 4As shown, swing arm plates a14 are symmetrically swing-connected on both sides of the sealing sleeve a1. One end of the swing arm plate a14 is provided with a squeezing roller a15. One end of the elastic wire a13 is fixedly connected to the top outer surface of the swing arm plate a14. A snap-fit ​​block 148 is movably sleeved on the outer surface of the T-shaped snap-fit ​​strip 149. The outer surface of the snap-fit ​​block 148 is fixedly installed on the surface of the lifting plate 147. A threaded rod 146 is threadedly sleeved on the outer surface of the lifting plate 147.

[0024] During operation, when the threaded rod 146 lowers the lifting plate 147, the squeezing roller a15 on one end of the swing arm plate a14 overlaps with the top surface of the track bar 11. When the squeezing roller a15 slides on the surface of the track bar 11, it cleans the impurities on the surface of the track bar 11. At the same time, it can greatly prevent some rocks falling from the rock wall from falling onto the surface of the track bar 11, which would cause rock particles to hit the surface of the acrylic transparent plate a6, resulting in cracks and scratches on the acrylic transparent plate a6.

[0025] Working principle: When the horizontal transport vehicle 12 moves to the tunnel entrance, the angle of the industrial camera a2 and the supplementary lighting device a3 is adjusted so that the shooting range can cover a 300-degree range of the tunnel cross section. Then, after the vehicle enters, it moves at a constant speed. The industrial camera a2 begins to collect images and videos of the tunnel inner wall and stores them in the server. The server calls the detection module in the YOLO algorithm and uses the pre-trained lightweight YOLO model for real-time recognition. At the same time, the feedback results of the positioning beacon are stored in the server. The server outputs the identified defects and marks the mileage. The industrial camera a2 and the supplementary lighting device a3 are placed inside the sealed housing a1. Then, the acrylic transparent plate a6 is moved and fitted into the sealed housing a1. At this point, the edges of the acrylic transparent plate a6 press against the inclined groove surface a11 on one end of the docking positioning head a10, and the inclined surface of the groove surface a11 pushes the docking positioning head a10 outwards, thus moving the acrylic transparent plate a6 into the sealed housing a1. Then, under the push of the elastic buffer wire a9, the docking positioning head a10 is pushed back into place. The moving part enters the sealed housing a1, and the docking positioning head a10 overlaps and supports the side of the acrylic transparent plate a6. At the same time, after the acrylic transparent plate a6 enters the sealed housing a1, the elastic positioning strip a5 on the bottom surface of the fixing strip a4 presses and adheres to the surface of the acrylic transparent plate a6, thereby increasing the compressive force between the acrylic transparent plate a6 and the docking positioning head a10. Meanwhile, the adhesion between the acrylic transparent plate a6 and the wall of the sealed housing a1 is used to prevent external dust from entering the sealed housing a1. When the industrial camera a2, the supplementary lighting equipment a3, and the acrylic transparent plate a6 are replaced or repaired, simply pull the pull rod a8 on one side of the sealing housing a1 and pull the docking positioning head a10 on one end of the pull rod a8 out of the sealing housing a1. When the bottom surface of one side of the acrylic transparent plate a6 is no longer supported, the acrylic transparent plate a6 will fall down at an angle. The pull rod a8 will move horizontally under the constraint of the fixed plate a7. After the pull rod a8 is released, the docking positioning head a10 will be pushed back into the sealing housing a1 by the elastic buffer wire a9.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A segment defect detection and acquisition device mounted on a tunnel vehicle, comprising a T-shaped clamping strip (149), characterized in that: A sealing sleeve (a1) is fixedly connected to the bottom surface of the T-shaped snap-fit ​​strip (149). An industrial camera (a2) and a supplementary lighting device (a3) ​​are respectively installed on the top inner wall of the sealing sleeve (a1). A fixing strip (a4) is fixedly connected to the inner walls on both sides of the sealing sleeve (a1) at the bottom edge. An elastic positioning strip (a5) is installed on the bottom surface of the fixing strip (a4). Two sets of fixing plates (a7) are symmetrically fixedly connected to the outer surface of the sealing sleeve (a1). A pull rod (a8) is movably sleeved on the outer surface of the fixed plate (a7). A docking positioning head (a10) is fixedly connected to one end of the pull rod (a8). A slanted groove (a11) is opened on one end surface of the docking positioning head (a10) inside the sealing sleeve (a1). An elastic buffer wire (a9) is movably sleeved on the outer surface of the pull rod (a8). The two ends of the elastic buffer wire (a9) are respectively movably overlapped on the docking positioning head (a10) and the outer surface of the fixed plate (a7).

2. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 1, characterized in that: The bottom surface of the elastic positioning strip (a5) is movably overlapped with the top surface of the acrylic transparent plate (a6), and the bottom surface of the acrylic transparent plate (a6) is movably overlapped with the top surface of the docking positioning head (a10).

3. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 2, characterized in that: Four sets of fixing strips (a12) are symmetrically fixedly connected to the two sides of the sealing sleeve (a1), and elastic wires (a13) are fixedly connected to the bottom surface of the fixing strips (a12).

4. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 3, characterized in that: The sealing sleeve (a1) has symmetrical swing arm plates (a14) on both sides. A squeezing roller (a15) is provided on one end of the swing arm plate (a14). One end of the elastic wire (a13) is fixedly connected to the top outer surface of the swing arm plate (a14).

5. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 4, characterized in that: A snap-fit ​​block (148) is movably sleeved on the outer surface of the T-shaped snap-fit ​​strip (149). The outer surface of the snap-fit ​​block (148) is fixedly installed on the surface of the lifting plate (147). A threaded rod (146) is movably sleeved on the outer surface of the lifting plate (147).

6. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 5, characterized in that: The threaded rod (146) has an overlapping positioning plate (142) hinged and movably sleeved on the outer surface of the other end. A motor (143) is fixedly installed on the bottom surface of the overlapping positioning plate (142). A transmission tooth ring (144) is fixedly connected to the output end of the motor (143) and movably overlaps the top outer surface of the overlapping positioning plate (142).

7. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 6, characterized in that: The top surface of the overlapping positioning plate (142) is movably adjusted with a transmission toothed plate (145) threadedly hinged to the outer surface of the threaded rod (146). The outer surface of the overlapping positioning plate (142) and the periphery are fixedly connected with a docking sleeve (14). The outer surface of the docking sleeve (14) is provided with a bolt (141).

8. The segment defect detection and imaging device mounted on a tunnel vehicle according to claim 7, characterized in that: A snap-fit ​​post (13) is movably sleeved on the inner wall of the docking sleeve (14). A horizontal transport vehicle (12) is fixedly connected to one end of the snap-fit ​​post (13). A track bar (11) is provided on the bottom surface of the horizontal transport vehicle (12).

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