Visual inspection device for tunnel lining in cold and cold mountainous area

Abstract

The invention discloses a visual detection device for tunnel linings in cold and cold mountainous areas, and relates to the technical field of tunnel visual detection. Comprising a mounting bracket, a sliding rail is fixedly mounted at the upper end of the mounting bracket, a movable base is connected to the sliding rail, a connecting piece is fixedly mounted at the upper end of the movable base, a mounting base is connected to the upper end of the connecting piece, and a rotating motor is mounted in the connecting piece; the output end of the rotating motor is connected with a rotating base, and a swing cleaning mechanism is arranged on the rotating base. Through the arrangement of the swing cleaning mechanism, impurities or firm ice on the inner wall of a tunnel are cleaned in advance before measurement in the overall operation process of the measuring device, interference to measurement is reduced, meanwhile, through the arrangement of the swing reversing mechanism, the measurement range of the measuring device is widened, and meanwhile the measurement accuracy is improved by adjusting the deflection direction of the measuring device. And the overall measurement precision of the detection device is improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel visual inspection technology, specifically a visual inspection device for tunnel lining in high-altitude and cold mountainous areas. Background Technology

[0002] As modern transportation networks continue to extend into remote areas, the construction of tunnels in high-altitude and cold mountainous regions has become particularly crucial. These tunnels break through the limitations imposed by the terrain of these areas on transportation, not only powerfully promoting regional economic exchange and cooperation but also becoming an important support and guarantee for the economic development of these regions. As a vital component of the tunnel structure, the tunnel lining is directly related to its safe and stable operation. It undertakes multiple critical tasks, including bearing ground pressure, preventing surrounding rock deformation and collapse, waterproofing, and moisture prevention. In high-altitude and cold mountainous areas, the unique geographical environment and climatic conditions present even more severe challenges to tunnel lining, highlighting the increasing importance of inspection work.

[0003] Compared to tunnels in ordinary areas, tunnel lining inspection in high-altitude and cold mountainous regions faces numerous unique challenges. These areas experience consistently low temperatures, with average annual temperatures far below normal levels, sometimes reaching tens of degrees below zero Celsius in winter. Such a frigid environment poses a significant challenge to the performance and stability of inspection equipment. Extensive snow and ice accumulation within the tunnels not only increases the difficulty and danger for inspection personnel entering the tunnel but can also cover critical inspection areas on the lining surface, affecting the accuracy of the results. Furthermore, frequent strong winds and blizzards in high-altitude and cold mountainous areas can disrupt inspection operations and potentially damage the equipment.

[0004] However, most existing tunnel lining inspection devices are single-point inspection devices. Tunnel linings have large areas, and it takes a long time to completely detect lining voids, resulting in low inspection efficiency. The inspection is difficult to fully cover or takes too long, affecting the overall traffic flow and thus impacting traffic. At the same time, some existing tunnel lining devices are not convenient for breaking and cleaning up any ice that may be present on the tunnel inner wall. During inspection, the ice fragments on the tunnel inner wall surface may affect the inspection accuracy, affect the subsequent data interpretation, and thus leave safety hazards.

[0005] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0006] The purpose of this invention is to provide a visual inspection device for tunnel lining in high-altitude and cold mountainous areas to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection device for tunnel lining in high-altitude and cold mountainous areas, comprising a mounting bracket, a sliding rail fixedly mounted on the upper end of the mounting bracket, a movable base connected to the sliding rail, a connector fixedly mounted on the upper end of the movable base, a mounting base connected to the upper end of the connector, a rotary motor mounted in the connector, a rotating base connected to the output end of the rotary motor, a swing cleaning mechanism provided on the rotating base, a cleaning scraper connected to the rotating base through the swing cleaning mechanism, a rotating rod rotatably mounted on the inner wall of the mounting base, a swing reversing mechanism provided on the rotating rod, and a detection camera connected to the rotating rod through the swing reversing mechanism.

[0008] Preferably, the swing cleaning mechanism includes a rotating block, an electric push rod is disposed inside the rotating block, a connecting block is slidably installed inside the rotating block, and the protruding section of the electric push rod is connected to the connecting block.

[0009] Preferably, the swing cleaning mechanism further includes a connecting frame, which is rotatably mounted on the rotating rod. The connecting frame has a sliding groove, and the upper protrusion of the first connecting block is slidably disposed in the sliding groove. The upper protrusion of the first connecting block is inclined.

[0010] Preferably, the swing cleaning mechanism further includes a squeezing block, which is slidably mounted on the mounting base and located on the movement trajectory of the connecting frame. A limit spring is fixedly installed in the internal cavity of the mounting base, and a second connecting block is slidably mounted inside the mounting base.

[0011] Preferably, the second connecting block is fixedly connected to the limiting spring. The second connecting block is trapezoidal in plan view. The inclined surface of the second connecting block abuts against the extrusion block. An electric crusher is fixedly installed on the second connecting block. The electric crusher is slidably mounted on both sides of the mounting base via the second connecting block.

[0012] Preferably, the swing reversing mechanism includes a connecting rod, which is fixedly mounted on a connecting frame, and a deflection plate is fixedly mounted on the other end of the connecting rod, which is rotatably mounted on a rotating rod.

[0013] Preferably, a micro motor is mounted on the deflection plate, the output end of the micro motor is connected to a limit block, and a rotating gear is rotatably mounted on the rotating rod.

[0014] Preferably, the top end of the limiting block is symmetrically provided with abutment blocks, which engage with the teeth of the rotating gear.

[0015] Preferably, the swing reversing mechanism further includes a support frame, which is rotatably mounted in the mounting base and fixedly mounted on the lower end of the detection camera.

[0016] Preferably, the support frame has a track groove, and an abutment rod is slidably disposed in the track groove, the abutment rod being fixedly mounted on the rotating gear.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention is equipped with an adjustable cleaning mechanism. The movable base moves the mounting base on the sliding track through the connecting parts. The rotary motor drives the rotating base to rotate and, under the action of the rotating block, connecting block one, and connecting frame, drives the cleaning scraper to reciprocate and swing to clean impurities on the surface of the running track. At the same time, through the reciprocating swing of the connecting frame and the cooperation of the squeezing block and connecting block two, the electric crusher moves back and forth to clean any stubborn impurities or ice fragments or solid ice that may exist on the tunnel wall during the process, ensuring the overall cleaning effect and ensuring the accuracy of the measurement data. 2. This invention, through a linkage structure, enables the connecting frame to drive the deflection plate to move synchronously under the action of the connecting rod. The deflection plate, in conjunction with the limiting block, drives the rotating gear to rotate. The rotating gear, in conjunction with the abutment rod, drives the support frame to deflect, thereby enabling the detection camera to measure more areas. Simultaneously, during the return stroke, the rotating motor drives the limiting block to adjust its position, changing the rotation direction of the rotating gear and simultaneously changing the deflection direction of the support frame. This ensures that the overall detection camera does not leave any blind spots during the detection process, providing a wide coverage area. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the connection structure between the connector and the mounting base of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting base of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting block of the present invention; Figure 5 This is a schematic diagram of the rotating rod and connecting frame of the present invention; Figure 6 This is a schematic diagram of the connection structure between the rotating gear and the support frame of the present invention; Figure 7 This is a schematic diagram of the connection structure between the limiting block and the rotating gear of the present invention.

[0019] In the diagram: 1. Mounting bracket; 2. Sliding rail; 3. Movable base; 4. Connector; 5. Mounting base; 6. Rotary motor; 7. Rotating base; 8. Cleaning scraper; 9. Rotating rod; 10. Detection camera; 11. Rotating block; 12. Electric push rod; 13. Connecting block one; 14. Connecting frame; 1401. Sliding groove; 15. Extrusion block; 16. Limiting spring; 17. Connecting block two; 18. Electric crusher; 19. Connecting rod; 20. Deflection plate; 2001. Micro motor; 21. Limiting block; 2101. Abutting block; 22. Rotating gear; 23. Support frame; 24. Rail groove; 25. Abutting rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-7 This invention provides a technical solution: a visual inspection device for tunnel lining in high-altitude and cold mountainous areas, comprising a mounting bracket 1, a sliding rail 2 fixedly mounted on the upper end of the mounting bracket 1, a movable base 3 connected to the sliding rail 2, a connector 4 fixedly mounted on the upper end of the movable base 3, a mounting base 5 connected to the upper end of the connector 4, a rotary motor 6 installed in the connector 4, a rotating base 7 connected to the output end of the rotary motor 6, a swing cleaning mechanism provided on the rotating base 7, a cleaning scraper 8 connected to the rotating base 7 through the swing cleaning mechanism, a rotating rod 9 rotatably mounted on the inner wall of the mounting base 5, a swing reversal mechanism provided on the rotating rod 9, and a detection camera 10 connected to the rotating rod 9 through the swing reversal mechanism.

[0022] In one embodiment of the present invention, the swing cleaning mechanism includes a rotating block 11, an electric push rod 12 is disposed inside the rotating block 11, a connecting block 13 is slidably installed inside the rotating block 11, and the ejector section of the electric push rod 12 is connected to the connecting block 13.

[0023] As one embodiment of the present invention, the swing cleaning mechanism further includes a connecting frame 14, which is rotatably mounted on the rotating rod 9. A sliding groove 1401 is provided on the connecting frame 14, and the upper protrusion of the connecting block 13 is slidably disposed in the sliding groove 1401. The upper protrusion of the connecting block 13 is inclined.

[0024] As one embodiment of the present invention, the swing cleaning mechanism further includes a squeezing block 15, which is slidably mounted on the mounting base 5 and located on the movement trajectory of the connecting frame 14. A limit spring 16 is fixedly installed in the internal cavity of the mounting base 5, and a connecting block 17 is slidably mounted inside the mounting base 5.

[0025] In one embodiment of the present invention, the connecting block 17 is fixedly connected to the limiting spring 16. The connecting block 17 is trapezoidal in plan view. The inclined surface of the connecting block 17 abuts against the extrusion block 15. An electric crusher 18 is fixedly installed on the connecting block 17. The electric crusher 18 is slidably disposed on both sides of the mounting base 5 through the connecting block 17.

[0026] The rotary motor 6 drives the rotating block 11 to rotate through the rotating base 7. Under the action of the connecting block 13 on the rotating block 11, the connecting frame 14 is driven to reciprocate. This causes the connecting frame 14 to drive the cleaning scraper 8 to reciprocate. At the same time, the reciprocating connecting frame 14 continuously pushes the extrusion block 15 during its movement. Under the action of the limit spring 16 and the connecting block 17, the extrusion block 15 drives the electric crusher 18 to reciprocate.

[0027] In one embodiment of the present invention, the swing reversing mechanism includes a connecting rod 19, which is fixedly mounted on the connecting frame 14. A deflection plate 20 is fixedly mounted on the other end of the connecting rod 19, and the deflection plate 20 is rotatably mounted on the rotating rod 9.

[0028] In one embodiment of the present invention, a micro motor 2001 is mounted on the deflection plate 20, the output end of the micro motor 2001 is connected to a limit block 21, and a rotating gear 22 is rotatably mounted on the rotating rod 9.

[0029] In one embodiment of the present invention, the top end of the limiting block 21 is symmetrically provided with abutment blocks 2101, and the abutment blocks 2101 engage with the teeth of the rotating gear 22.

[0030] As one embodiment of the present invention, the swing reversing mechanism further includes a support frame 23, which is rotatably mounted in the mounting base 5 and fixedly mounted at the lower end of the detection camera 10.

[0031] In one embodiment of the present invention, a track groove 24 is provided on the support frame 23, and an abutment rod 25 is slidably arranged in the track groove 24. The abutment rod 25 is fixedly installed on the rotating gear 22.

[0032] When the connecting frame 14 deflects, it drives the deflection plate 20 to move synchronously through the connecting rod 19, so that the deflection plate 20 can drive the rotating gear 22 to deflect through the limit block 21, and then the rotating gear 22 drives the support frame 23 to deflect inside the mounting base 5 through the abutment rod 25, so that the detection camera 10 can perform multi-angle detection.

[0033] Working principle: The movable base 3 moves on the sliding track 2. During the movement, the rotary motor 6 in the connecting part 4 is started. The rotary motor 6 drives the rotating base 7 to rotate. The rotating base 7 drives the rotating block 11 to rotate synchronously. Then, the rotating block 11 moves back and forth continuously in the sliding groove 1401 in the connecting frame 14 through the connecting block 13. This drives the connecting frame 14 to deflect around the rotating rod 9. At the same time, during the continuous reciprocating deflection of the connecting frame 14, the connecting frame 14 pushes the extrusion block 15, which is elastically slidably set on the inner wall of the mounting base 5, back and forth. During the process of pushing the extrusion block 15, the extrusion block 15 pushes the connecting block 17 to slide in the cavity inside the mounting base 5 by abutting against the inclined surface of the connecting block 17. At the same time, the connecting block 17 drives the electric crusher 18 to move synchronously, thereby cleaning the impurities on the movement trajectory of the mounting base 5. Furthermore, during the deflection of the connecting frame 14, the connecting frame 14 drives the deflection plate 20 to move synchronously through the connecting rod 19. At the same time, the deflection plate 20 drives the limiting block 21 to deflect synchronously through the micro motor 2001. Under the engagement of the contact block 2101 and the rotating gear 22, the rotating gear 22 is driven to rotate. During the rotation, the rotating gear 22 moves up and down in the track groove 24 opened on the support frame 23 through the contact rod 25, driving the support frame 23 to reciprocate and deflect, thereby driving the detection camera 10 to reciprocate and swing synchronously, increasing the overall measurement range. At the same time, during the return of the moving base 3, the micro motor 2001 drives the limiting block 21 to flip, so that during the return, the limiting block 21 will push the rotating gear 22 to rotate in the opposite direction, so that the movement trajectory of the detection camera 10 can completely cover the measurement location and reduce measurement blind spots. Furthermore, when small-range precision measurements are required, by adjusting the extension of the electric push rod 12, the position of the connecting block 13 on the rotating block 11 is changed, thereby adjusting the movement trajectory of the rotating block 11 in the sliding groove 1401, adjusting the overall deflection angle of the connecting frame 14, and at the same time, the connecting frame 14 will also drive the support frame 23 to swing with a smaller amplitude, improving the overall measurement accuracy.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual inspection device for tunnel lining in high-altitude and cold mountainous areas, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is fixedly mounted with a sliding rail (2), a movable base (3) is connected to the sliding rail (2), a connector (4) is fixedly mounted on the upper end of the movable base (3), a mounting base (5) is connected to the upper end of the connector (4), a rotary motor (6) is installed in the connector (4), a rotating base (7) is connected to the output end of the rotary motor (6), a swing cleaning mechanism is provided on the rotating base (7), a cleaning scraper (8) is connected to the rotating base (7) through the swing cleaning mechanism, a rotating rod (9) is rotatably mounted on the inner wall of the mounting base (5), a swing reversal mechanism is provided on the rotating rod (9), and a detection camera (10) is connected to the rotating rod (9) through the swing reversal mechanism.

2. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 1, characterized in that: The swing cleaning mechanism includes a rotating block (11), an electric push rod (12) is provided inside the rotating block (11), a connecting block (13) is slidably installed inside the rotating block (11), and the push-out section of the electric push rod (12) is connected to the connecting block (13).

3. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 2, characterized in that: The swing cleaning mechanism also includes a connecting frame (14), which is rotatably mounted on the rotating rod (9). A sliding groove (1401) is provided on the connecting frame (14), and the upper protrusion of the first connecting block (13) is slidably disposed in the sliding groove (1401). The upper protrusion of the first connecting block (13) is inclined.

4. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 3, characterized in that: The swing cleaning mechanism also includes a squeezing block (15), which is slidably mounted on the mounting base (5). The squeezing block (15) is located on the movement trajectory of the connecting frame (14). A limit spring (16) is fixedly installed in the cavity inside the mounting base (5). A connecting block two (17) is slidably mounted inside the mounting base (5).

5. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 4, characterized in that: The second connecting block (17) is fixedly connected to the limiting spring (16). The second connecting block (17) is trapezoidal when viewed from above. The inclined surface of the second connecting block (17) abuts against the extrusion block (15). An electric crusher (18) is fixedly installed on the second connecting block (17). The electric crusher (18) is slidably disposed on both sides of the mounting base (5) through the second connecting block (17).

6. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 1, characterized in that: The swing reversing mechanism includes a connecting rod (19), which is fixedly installed on the connecting frame (14). A deflection plate (20) is fixedly installed at the other end of the connecting rod (19), and the deflection plate (20) is rotatably installed on the rotating rod (9).

7. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 6, characterized in that: A micro motor (2001) is installed on the deflection plate (20), and the output end of the micro motor (2001) is connected to a limit block (21). A rotating gear (22) is rotatably installed on the rotating rod (9).

8. The visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 7, characterized in that: The top of the limiting block (21) is symmetrically provided with abutting blocks (2101), which engage with the teeth of the rotating gear (22).

9. A visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 6, characterized in that: The swing reversing mechanism also includes a support frame (23), which is rotatably mounted in the mounting base (5) and fixedly mounted on the lower end of the detection camera (10).

10. A visual inspection device for tunnel lining in high-altitude and cold mountainous areas according to claim 9, characterized in that: The support frame (23) has a track groove (24), and an abutment rod (25) is slidably arranged in the track groove (24). The abutment rod (25) is fixedly installed on the rotating gear (22).

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