A measuring instrument for intelligent detection of tunnel water leakage

By designing a telescopic component with adjustable length and a measuring instrument for the adjustable component, the accuracy and efficiency issues of tunnel water leakage detection have been solved, and precise detection and large-area screening of the tunnel inner wall have been achieved, especially when the water seepage is small, the leakage point can still be accurately identified.

CN120333719BActive Publication Date: 2025-09-16CHINA RAILWAY 19 BUREAU GRP CO LTD +1
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202510822307.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-09-16
Estimated Expiration
2045-06-19

AI Technical Summary

Technical Problem

Existing tunnel water leakage detection instruments cannot accurately contact the tunnel top when testing arch tunnels, resulting in inaccurate detection; large-area detection requires manual point-by-point inspection, which is inefficient and costly; and detection is inaccurate when there is less water leakage.

Method used

A measuring instrument was designed, which included a connecting part, a telescopic component, a detection component and an adjustment component. The telescopic component can adjust the length. The detection component includes a detection plate, a sponge detector, an ultrasonic radar and a camera. The adjustment component adjusts the distance between the sponge detector and the detection plate through a driving part to ensure that the sponge detector fully contacts the inner wall of the tunnel, and realizes large-area screening through a pulley and a camera.

Benefits of technology

It achieves precise detection of the inner wall of the tunnel, improves detection efficiency and accuracy, and can accurately identify leakage points when there is less water seepage, reducing manual intervention and lowering costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120333719B_ABST
    Figure CN120333719B_ABST
Patent Text Reader

Abstract

The present invention belongs to the technical field of tunnel water seepage detection, and discloses a measuring instrument for intelligent detection of tunnel water seepage, including a connecting piece and an adjusting component. The outer wall of the connecting piece is circumferentially connected to multiple telescopic components, and the detection component is installed at the end of the telescopic component away from the connecting piece. The length of the telescopic component is adjustable. The detection component includes a detection plate, a sponge detector, an ultrasonic radar and a camera. Pulleys are installed on all four sides of the detection plate. The adjusting component adjusts the distance between the sponge detector and the detection plate. By setting the telescopic component, the sponge detector can perfectly fit curved tunnels of different curvatures to obtain accurate detection data. By setting the camera and the pulley, the pulley drives the overall rapid movement, the camera identifies places and areas where water may leak, and realizes large-area screening detection. By installing the sponge detector and the ultrasonic radar, accurate detection can be performed when there is less water seepage. By setting the adjusting component, the sponge detector is protected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel water seepage detection, and in particular to a measuring instrument for intelligent detection of tunnel water seepage. Background Art

[0002] Water seepage in the internal end wall of the tunnel is mainly caused by the abundant groundwater in the upslope body, which leaks outward. The drainage ditch on the top of the tunnel is not draining smoothly, causing surface water to accumulate. The increased water pressure leads to water leakage. The groundwater in the upslope body is mainly fissure water, and the seepage is serious in the rainy season, which is seasonal. Therefore, it is necessary to regularly inspect and measure the top of the tunnel, and bring the detection instrument into contact with the wall inside the tunnel. At the same time, the position needs to be adjusted at regular intervals to promptly detect whether there is a water leakage problem in the top wall inside the tunnel.

[0003] Typically, a detection instrument is placed on a lifting platform or on top of a vehicle to detect water leaks on the tunnel surface. However, existing detection instruments have the following problems: when detecting arched tunnels, there is a gap between the detection instrument and the tunnel top, and the detection instrument cannot fully contact the interior of the tunnel, resulting in inaccurate detection; the detection instrument can only be raised and lowered at a fixed point and cannot perform large-area detection on an area of ​​the tunnel inner wall. Large-area screening usually requires manual point-by-point inspection, which has a long screening cycle, high labor costs, cumbersome operation, and is time-consuming and labor-intensive; the detection instrument cannot accurately detect when there is less water seepage. Summary of the Invention

[0004] The purpose of the present invention is to provide a measuring instrument for intelligent detection of tunnel water leakage, which can perform large-area screening and detection with high work efficiency and can accurately detect when there is less water leakage.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A measuring instrument for intelligent detection of tunnel water leakage, comprising a connecting member, wherein a plurality of telescopic assemblies are connected to the outer wall of the connecting member at circumferential intervals, a detection assembly is mounted on the end of the telescopic assembly facing away from the connecting member, and the length of the telescopic assembly is adjustable. The detection assembly comprises a detection plate, a camera, a sponge detector, and an ultrasonic radar, the detection plate being connected to the telescopic assembly, the camera, the sponge detector, and the ultrasonic radar being mounted on the detection plate, and pulleys are mounted on all four sides of the detection plate;

[0007] An adjustment component includes a driving member, a bidirectional screw, two sliders and two support rods. The driving member is installed on the detection plate, the bidirectional screw is installed on the output end of the driving member, the two sliders are respectively screwed on the two ends of the bidirectional screw, one end of the two support rods is respectively rotatably connected to the two sliders, and the other end of the two support rods is rotatably connected to the sponge detector. The driving member drives the bidirectional screw to rotate, driving the two sliders to move away from or approach each other to adjust the distance between the sponge detector and the detection plate.

[0008] Preferably, the telescopic assembly includes a fixed column, a sleeve column and an extrusion spring, one end of the fixed column is connected to the connecting piece, the other end of the fixed column is provided with a chuck, the chuck protrudes circumferentially from the fixed column, one end of the sleeve column is open and sleeved on the fixed column, the other end of the sleeve column is connected to the detection plate, the inner wall of the open end of the sleeve column is provided with a limiting step, the limiting step is circumferentially limited to the chuck, one end of the extrusion spring abuts against the chuck, and the other end abuts against the inner wall of the sleeve column.

[0009] Preferably, the adjustment assembly also includes a guide sliding frame installed on the detection plate, the bidirectional screw is rotatably arranged inside the guide sliding frame, the driving member is installed on the guide sliding frame, and the opposite sides of the slider are respectively limited to the inner wall of the guide sliding frame.

[0010] Preferably, slide grooves are provided on opposite sides of the inner wall of the guide slide frame, the slide grooves are arranged along the axial direction of the bidirectional screw, and the opposite sides of the slider are respectively slidably limited in the two slide grooves.

[0011] Preferably, a fixed block is installed on the back of the sponge detector, and the other ends of the two support rods are rotatably connected to the fixed block.

[0012] Preferably, the camera is located at one end of the pulley's traveling direction.

[0013] Preferably, the sponge detector is installed in the middle area of ​​the detection plate, and the ultrasonic radar and the camera are both installed on the edge of the detection plate.

[0014] Preferably, a plurality of ultrasonic radars are installed at intervals on the edge of the detection plate.

[0015] Beneficial effects of the present invention:

[0016] The present invention discloses a measuring instrument for intelligent detection of tunnel water leakage, comprising a connecting member and an adjustment assembly. A plurality of telescopic assemblies are circumferentially spaced and connected to the outer wall of the connecting member. A detection assembly is mounted on the end of the telescopic assembly facing away from the connecting member. The length of the telescopic assembly is adjustable. The detection assembly comprises a detection plate, a sponge detector, an ultrasonic radar, and a camera. The detection plate is connected to the telescopic assembly, and pulleys are mounted on all four sides of the detection plate. The adjustment assembly is used to adjust the distance between the sponge detector and the detection plate. By providing the telescopic assembly, the sponge detector can fully contact the inner wall of the tunnel and perfectly fit curved tunnels of different curvatures to obtain accurate detection data. By providing the camera and pulleys, the pulleys drive the entire device to move rapidly. The camera identifies locations and areas where water leakage is likely to occur, thereby achieving large-scale screening detection. By installing the sponge detector on the detection plate, precise detection and judgment of the tunnel wall surface can be performed at a fixed point. By installing the ultrasonic radar on the detection plate, existing and potential water leakage in the tunnel can be effectively detected and prevented, ensuring detection accuracy when water leakage is relatively low. By providing the adjustment assembly, the distance between the sponge detector and the detection plate can be shortened during large-scale screening detection, thereby protecting the sponge detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a measuring instrument for intelligent detection of tunnel water leakage provided by an embodiment of the present invention;

[0018] Figure 2 1 is a schematic diagram of the assembly of the detection component and the adjustment component provided by an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a telescopic assembly provided by an embodiment of the present invention;

[0020] Figure 4 It is a structural diagram of the adjustment component provided by an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Connecting part; 2. Telescopic assembly; 21. Fixed column; 211. Chuck; 22. Sleeve column; 221. Limiting step; 23. Extrusion spring; 3. Detection assembly; 31. Detection plate; 32. Camera; 33. Pulley; 34. Sponge detector; 35. Ultrasonic radar; 41. Driving part; 42. Bidirectional screw; 43. Slider; 44. Support rod; 45. Guide frame. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0024] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0027] This embodiment provides a measuring instrument for intelligent detection of tunnel water leakage, which can perform large-area screening and detection with high work efficiency and can accurately detect when there is less water leakage.

[0028] See also Figures 1 to 4 A measuring instrument for intelligent detection of tunnel water leakage includes a connector 1, a plurality of telescopic components 2 circumferentially spaced and connected to the outer wall of the connector 1, and a detection component 3 installed at the end of the telescopic component 2 away from the connector 1.

[0029] Among them, the length of the telescopic component 2 is shortened after being compressed. During the detection process, as the height increases, the detection component 3 contacts the inner wall of the tunnel and squeezes the telescopic component 2. The telescopic component 2 is shortened, allowing the detection component 3 to fully contact the inner wall of the tunnel, perfectly fitting the curved tunnels with different curvatures, thereby obtaining accurate detection data.

[0030] For example, see Figure 2 and Figure 3The telescopic assembly 2 includes a fixed column 21, a sleeve column 22, and a compression spring 23. One end of the fixed column 21 is connected to the connecting piece 1, and the other end of the fixed column 21 is provided with a chuck 211, which protrudes circumferentially from the fixed column 21. One end of the sleeve column 22 is open and sleeved on the fixed column 21. The other end of the sleeve column 22 is connected to the detection assembly 3. The inner wall of the open end of the sleeve column 22 is provided with a limiting step 221, which is circumferentially limited to the chuck 211. One end of the compression spring 23 abuts against the chuck 211, and the other end abuts against the inner wall of the sleeve column 22. Through the above arrangement, in the idle state, the limiting step 221 is circumferentially limited to the chuck 211. As the height rises, the detection assembly 3 contacts the inner wall of the tunnel and squeezes the sleeve column 22. The sleeve column 22 compresses the compression spring 23, thereby shortening the overall length of the sleeve column 22 and the fixed column 21, so that multiple detection assemblies 3 can fully contact the inner wall of the tunnel, thereby improving the accuracy of detection.

[0031] It should be noted that the pressing spring 23 is always in a compressed state.

[0032] See also Figure 1 and Figure 2 Detection assembly 3 includes a detection plate 31 and a camera 32 mounted thereon. Detection plate 31 is connected to the other end of sleeve 22, and pulleys 33 are mounted around the detection plate 31 to drive the entire assembly. This arrangement allows the pulleys 33 to rapidly move the entire assembly, while camera 32 identifies potential leaks and provides feedback on suspicious areas. This enables large-scale screening and detection, improving the efficiency and accuracy of tunnel leak detection.

[0033] Preferably, the camera 32 is installed on the edge of the detection plate 31 to prevent it from affecting the detection. Further preferably, the camera 32 is located at one end of the travel direction of the pulley 33 to ensure that the camera 32 can recognize the front picture.

[0034] Optionally, the multiple detection plates 31 in this embodiment are arranged in a ring shape, that is, the cross sections of the multiple detection plates 31 are located on the same regular polygon so as to fit the wall surface of the arch tunnel.

[0035] Detection assembly 3 also includes a sponge detector 34 and an ultrasonic radar 35. The sponge detector 34 is mounted in the center of the detection plate 31 to avoid the influence of the pulley 33, while the ultrasonic radar 35 is mounted at the edge of the detection plate 31 to prevent interference with detection. By installing the sponge detector 34 on the detection plate 31, precise detection and assessment of the tunnel wall surface can be performed at specific points. The ultrasonic radar 35 effectively detects and prevents existing and potential water leaks in the tunnel, ensuring accurate detection even when water seepage is minimal.

[0036] Preferably, a plurality of ultrasonic radars 35 are installed at intervals on the edge of the detection plate 31 to avoid missing detection points and improve the comprehensiveness of the detection.

[0037] Furthermore, in order to ensure that the sponge detector 34 is not damaged while sliding as a whole during large-area screening, the present embodiment provides an adjustable distance between the sponge detector 34 and the detection plate 31. The distance between the sponge detector 34 and the detection plate 31 is shortened during the sliding process to avoid the sponge detector 34 from rubbing against the tunnel and causing damage.

[0038] Specifically, a measuring instrument for intelligent detection of tunnel water leakage also includes an adjustment component, see Figure 4 The adjustment component is used to adjust the distance between the sponge detector 34 and the detection plate 31. The adjustment component connects the sponge detector 34 and the detection plate 31. The adjustment component includes a driving member 41, and the driving member 41 is configured to drive the sponge detector 34 away from or close to the detection plate 31.

[0039] For example, the adjustment assembly further includes a bidirectional screw 42, two sliders 43, and two support rods 44. The bidirectional screw 42 is mounted on the output end of the driver 41, and the two sliders 43 are respectively screwed to the ends of the bidirectional screw 42. One end of the two support rods 44 is rotatably connected to the two sliders 43, and the other ends of the two support rods 44 are rotatably connected to the sponge detector 34. Through this arrangement, the driver 41 is controlled to drive the bidirectional screw 42 to rotate, which drives the two sliders 43 away from or closer to each other, thereby adjusting the distance between the sponge detector 34 and the detection plate 31.

[0040] In some feasible embodiments, a fixed block is installed on the back of the sponge detector 34, and the other ends of the two support rods 44 are rotatably connected to the fixed block.

[0041] Optionally, the adjustment component also includes a guide sliding frame 45 installed on the detection plate 31, the bidirectional screw 42 is rotatably arranged inside the guide sliding frame 45, and the driving member 41 is installed on the guide sliding frame 45. Specifically, the driving member 41 is installed on the outer wall of the guide sliding frame 45. In this embodiment, one end of the bidirectional screw 42 is arranged to pass through the guide sliding frame 45 and be connected to the output end of the driving member 41 to prevent the driving member 41 from affecting the sliding of the slider 43 inside the guide sliding frame 45.

[0042] Furthermore, the slider 43 is slidably restrained on opposite sides of the inner wall of the guide frame 45. Slide grooves are provided on opposite sides of the inner wall of the guide frame 45, and the slide grooves are arranged along the axial direction of the bidirectional screw 42. The slider 43 is slidably restrained on opposite sides of the two slide grooves to ensure the stability of the slider 43 and limit the circumferential freedom of the slider 43.

[0043] This embodiment provides a measuring instrument for intelligent detection of tunnel water leakage. By providing a telescopic component 2, a sponge detector 34 can fully contact the inner wall of the tunnel and perfectly fit curved tunnels of different curvatures to obtain accurate detection data. By installing a camera 32 on the detection plate 31 and installing pulleys 33 around it, the pulleys 33 can drive the entire device to move rapidly. During this process, the camera 32 identifies places and areas where water may leak and provides feedback on suspicious points, thereby achieving large-scale screening and detection, and improving the efficiency of tunnel water leakage detection. By installing the sponge detector 34 on the detection plate 31, the tunnel wall surface can be accurately detected and judged at a fixed point. By providing an ultrasonic radar 35 on the detection plate 31, it can effectively detect and prevent places in the tunnel where water leakage has occurred or may occur, and ensure the accuracy of detection when water seepage is relatively low. By providing an adjustment component to adjust the distance between the sponge detector 34 and the detection plate 31, it is ensured that during large-area screening, the entire device slides without causing damage to the sponge detector 34.

[0044] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A measuring instrument for intelligent detection of tunnel water leakage, characterized in that: include: A connecting member (1), wherein the outer wall of the connecting member (1) is connected to a plurality of telescopic components (2) at intervals in the circumferential direction, a detection component (3) is installed on the end of the telescopic component (2) away from the connecting member (1), the length of the telescopic component (2) is adjustable, the detection component (3) comprises a detection plate (31), a camera (32), a sponge detector (34) and an ultrasonic radar (35), the detection plate (31) is connected to the telescopic component (2), the camera (32), the sponge detector (34) and the ultrasonic radar (35) are all installed on the detection plate (31), and pulleys (33) are installed on all four sides of the detection plate (31); An adjustment component, the adjustment component includes a driving member (41), a bidirectional screw (42), two sliders (43) and two support rods (44), the driving member (41) is installed on the detection plate (31), the bidirectional screw (42) is installed on the output end of the driving member (41), the two sliders (43) are respectively screwed to the two ends of the bidirectional screw (42), one end of the two support rods (44) is respectively rotatably connected to the two sliders (43), and the other end of the two support rods (44) is rotatably connected to the sponge detector (34), the driving member (41) drives the bidirectional screw (42) to rotate, and drives the two sliders (43) to move away from or close to each other, so as to adjust the distance between the sponge detector (34) and the detection plate (31); The telescopic assembly (2) comprises a fixed column (21), a sleeve column (22) and a compression spring (23); one end of the fixed column (21) is connected to the connecting piece (1); the other end of the fixed column (21) is provided with a chuck (211); the chuck (211) protrudes circumferentially from the fixed column (21); one end of the sleeve column (22) is open and sleeved on the fixed column (21); the other end of the sleeve column (22) is connected to the detection plate (31); the inner wall of the open end of the sleeve column (22) is provided with a limiting step (221); the limiting step (221) is circumferentially limited to the chuck (211); one end of the compression spring (23) abuts against the chuck (211), and the other end abuts against the inner wall of the sleeve column (22).

2. The measuring instrument for intelligent detection of tunnel water leakage according to claim 1, characterized in that: The adjustment assembly also includes a guide slide frame (45) installed on the detection plate (31), the bidirectional screw (42) is rotatably arranged inside the guide slide frame (45), the driving member (41) is installed on the guide slide frame (45), and the opposite sides of the slider (43) are respectively slidably limited to the inner wall of the guide slide frame (45).

3. The measuring instrument for intelligent detection of tunnel water leakage according to claim 2, characterized in that: Slide grooves are provided on opposite sides of the inner wall of the guide slide frame (45), and the slide grooves are arranged along the axial direction of the bidirectional screw (42). The opposite sides of the slider (43) are respectively slidably limited in the two slide grooves.

4. The measuring instrument for intelligent detection of tunnel water leakage according to claim 1, characterized in that: A fixing block is installed on the back of the sponge detector (34), and the other ends of the two support rods (44) are rotatably connected to the fixing block.

5. A measuring instrument for intelligent detection of tunnel water leakage according to any one of claims 1 to 4, characterized in that: The camera (32) is located at one end of the travel direction of the pulley (33).

6. A measuring instrument for intelligent detection of tunnel water leakage according to any one of claims 1 to 4, characterized in that: The sponge detector (34) is installed in the middle area of ​​the detection plate (31), and the ultrasonic radar (35) and the camera (32) are both installed on the edge of the detection plate (31).

7. A measuring instrument for intelligent detection of tunnel water leakage according to any one of claims 1 to 4, characterized in that: A plurality of ultrasonic radars (35) are installed at intervals on the edge of the detection plate (31).

Citation Information

Patent Citations

  • Detection device and method applied to subway tunnel leakage cracks

    CN115753818A