Nondestructive inspection device for road holes

By designing protective plates to isolate debris from contact and combining them with road detection radar for non-destructive testing, the problems of time-consuming and labor-intensive traditional detection methods and the vulnerability of detection radar to damage have been solved, achieving rapid and accurate road flaw detection and equipment protection.

CN224190240UActive Publication Date: 2026-05-01SUZHOU XIANGCHENG TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU XIANGCHENG TESTING CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional road detection methods are time-consuming, labor-intensive, and have a significant impact on the environment. Furthermore, the radar casing is easily damaged by debris, making them unable to meet the needs for rapid and accurate detection.

Method used

Design a non-destructive testing device for road cavities. Use a triangular protective plate to isolate debris and prevent it from contacting the detection radar housing. Combine with the road detection radar to perform non-destructive testing and display the data in real time on a screen.

Benefits of technology

It enables rapid and accurate road flaw detection, protects the radar housing, and improves the long-term reliability and detection efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a nondestructive inspection device for a road cavity, and relates to the technical field of road detection. Universal wheels are installed at the four corners of the bottom of the shell correspondingly. And a rectangular groove is formed in the left side of the shell. By adjusting the position of the protection plate and moving the whole device, when the road detection radar is used for performing flaw detection on a road, the triangular protection plate can push sundries on the left side of the device, at the moment, the protection plate can push the sundries to the two sides, the sundries cannot make contact with a shell of the road detection radar, and the protection plate effectively isolates the sundries; the problem that the road detection radar needs to be used for non-destructive detection of the road due to the fact that the road foundation is poor and holes often occur is solved, and the problem that the road detection radar cannot be used for non-destructive detection if the road detection radar shell is not protected in place is solved. And sundries on the road frequently contact with the shell of the road detection radar to cause damage, and once the shell is replaced, resources are wasted and the use is delayed.
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Description

Technical Field

[0001] This utility model relates to the field of road detection technology, and in particular to a non-destructive testing device for road cavities. Background Technology

[0002] Road subsidence and cavity non-destructive testing devices are mainly used to detect the integrity of roads and the underlying soil structure to prevent traffic accidents and injuries caused by subsidence. With the acceleration of urbanization, aging road infrastructure and improper construction are becoming increasingly prominent, leading to cavities and subsidence beneath roads, posing a serious threat to the safety of pedestrians and vehicles. Traditional detection methods rely heavily on ground excavation and drilling, which are not only time-consuming and labor-intensive but also environmentally impactful, failing to meet the demand for rapid and accurate detection. With the development of non-destructive testing technology, new types of flaw detection devices have emerged that can detect cavities and cracks beneath roads using physical principles such as sound waves, light waves, and electromagnetic waves without damaging the road structure. These devices not only improve the efficiency and accuracy of detection but also allow for real-time monitoring of road health, providing scientific decision-making basis for relevant departments. However, road detection radars require protective casings during use; contact with debris can cause damage.

[0003] During the use of flaw detection equipment, due to poor road foundations, voids often appear on the road. Therefore, road detection radar is needed to conduct non-destructive testing on the road. If the protective shell of the road detection radar is not adequate, debris on the road will frequently come into contact with the radar shell and cause damage. Once it is replaced, it will not only waste resources but also delay its use. Utility Model Content

[0004] This utility model relates to a non-destructive testing device for road cavities. During the non-destructive testing of road cavities, the position of the protective plate is first adjusted. When the entire device is moved and the road detection radar is used to detect road cavities, the triangular protective plate will push the debris on the left side of the device. At this time, the protective plate will push the debris to both sides, so that the debris cannot come into contact with the outer shell of the road detection radar. The protective plate effectively isolates the debris and prevents it from causing scratches, impacts or other forms of damage to the outer shell of the road detection radar, thus ensuring the long-term reliability of the equipment.

[0005] In a first aspect, this utility model provides a non-destructive testing device for road cavities, specifically comprising: a housing; universal wheels installed at the four corners of the bottom of the housing; a rectangular groove on the left side of the housing, with two threaded grooves at each end of the rectangular groove; through-holes evenly distributed at the bottom of the inner cavity of the housing; and an extension plate fixedly installed at the rectangular groove on the left side of the housing, with a connecting groove at the bottom of the extension plate.

[0006] A threaded hole is provided on the inner side wall of the left end of the extension plate connecting groove; a bearing plate is installed at the lower end of the bottom of the extension plate, and a through circular hole is provided in the middle of the bearing plate; two fixing slots are provided at the upper end of the bearing plate; a guide rod is fixedly installed at the left end of the bearing plate; a through threaded post is inserted into the circular hole in the middle of the bearing plate; a connecting block is fixedly installed at the upper end of the threaded post; a through threaded hole is provided on the connecting block; and a through fastener is rotatably inserted into the threaded hole of the connecting block.

[0007] The threaded column has symmetrically fitted limiting discs rotatably mounted on its annular sidewall. Two fixing plates are fixedly installed in the two fixing slots of the bearing plate, and a through-hole is formed in the center of each fixing plate. A triangular protective plate is fixedly installed at the left end of the left side of the bearing plate. A connecting plate is fixedly installed on the inner side of the protective plate, and symmetrically fitted anti-detachment rods are fixedly installed at the upper end of the connecting plate. A through-hole is formed in the center of the connecting plate. Parallel threaded rods are fixedly installed on the right side wall of the connecting plate, and a control disc is fixedly installed at the right end of each threaded rod. Symmetrically fitted limiting rings are rotatably mounted on each of the two threaded rods.

[0008] Furthermore, symmetrical support plates are fixedly installed on the inner sidewall of the outer shell, and road detection radars are mounted on the two support plates, with a display screen installed on the road detection radars.

[0009] Furthermore, a receiving antenna is fixedly installed at the bottom of the road detection radar, a cantilever plate is fixedly installed on the right side of the housing, and a handle is fixedly installed on the cantilever plate.

[0010] Furthermore, the right end of the extension plate is fixedly equipped with symmetrical side plates, and the two ends of the side plates are respectively fitted with through bolts. The left side of the extension plate is fixedly equipped with parallel fixing blocks, and the left end of the fixing blocks is provided with through anti-detachment holes.

[0011] This utility model provides a non-destructive testing device for road cavities, which has the following beneficial effects:

[0012] When using the flaw detection device of this utility model, during the non-destructive testing of road cavities, the position of the protective plate is first adjusted. When the entire device is moved to use the road detection radar to detect flaws in the road, the triangular protective plate will push the debris on the left side of the device. At this time, the protective plate will push the debris to both sides, so that the debris cannot come into contact with the outer shell of the road detection radar. The protective plate effectively isolates the debris and prevents it from causing scratches, impacts or other forms of damage to the outer shell of the road detection radar, thus ensuring the long-term reliability of the equipment.

[0013] The system receives radar signals reflected from underground roads via a receiving antenna. These signals are processed by echo, and the display screen presents the received data and processing results to the user in a graphical manner, enabling operators to obtain road conditions in a timely manner and quickly determine whether there is any damage. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] In the attached diagram:

[0016] Figure 1 A schematic diagram of the left front upper axis view structure of this application is shown;

[0017] Figure 2 This paper shows a schematic diagram of the disassembled structure of the road detection radar and extension plate of this application;

[0018] Figure 3 A partial disassembled structural diagram of the extension plate, support plate, and protective plate of this application is shown;

[0019] Figure 4 A schematic diagram of the exploded structure of this application is shown.

[0020] List of reference numerals

[0021] 1. Outer shell; 101. Support plate; 102. Road detection radar; 103. Display screen; 104. Receiving antenna; 105. Cantilever plate; 106. Handle; 2. Extension plate; 201. Side plate; 202. Fixing block; 203. Anti-detachment hole; 3. Bearing plate; 301. Guide rod; 302. Threaded post; 303. Connecting block; 304. Fastener; 305. Limiting disc; 306. Fixing plate; 4. Protective plate; 401. Connecting plate; 402. Anti-detachment rod; 403. Guide hole; 404. Threaded rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1 to 4 :

[0024] This utility model proposes a non-destructive testing device for road cavities, comprising: a housing 1; casters are installed at the four corners of the bottom of the housing 1; the casters facilitate movement of the device; a rectangular groove is formed on the left side of the housing 1, and two threaded grooves are formed at each end of the rectangular groove; through-holes are evenly formed at the bottom of the inner cavity of the housing 1; an extension plate 2 is fixedly installed at the rectangular groove on the left side of the housing 1, and a connecting groove is formed at the bottom of the extension plate 2; a connecting block 303 is inserted into the connecting groove of the extension plate 2, and then a fastener 304 is inserted through the threaded holes of the connecting block 303 and the extension plate 2 to fix the connecting block 303 and the extension plate 2 together; a threaded hole is formed on the inner side wall of the connecting groove at the left end of the extension plate 2; the extension plate Symmetrical side plates 201 are fixedly installed on the right end of the extension plate 2. Through bolts are inserted at both ends of the side plates 201. Rotating the bolts on the side plates 201 into the threaded grooves on the left side of the outer casing 1 secures the side plates 201 and the extension plate 2, preventing movement or detachment when the extension plate 2 is touched. Parallel fixing blocks 202 are fixedly installed on the left side of the extension plate 2, with a through anti-detachment hole 203 at the left end of each fixing block 202. A bearing plate 3 is installed at the lower bottom of the extension plate 2, with a through circular hole in the middle of the bearing plate 3. Two fixing grooves are provided at the upper end of the bearing plate 3. A triangular protective plate 4 is fixedly installed at the left end of the left side of the bearing plate 3. A connecting plate 401 is fixedly installed on the inner side of the protective plate 4, and symmetrical anti-detachment rods 402 are fixedly installed on the upper end of the connecting plate 401. The anti-detachment rods 402 slide through the anti-detachment holes 203. When the protective plate 4 slides up and down, the anti-detachment rods 402 are restricted by the anti-detachment holes 203, and the protective plate 4 can only slide up and down to prevent the protective plate 4 from tilting when sliding up and down. The protective plate 4 cannot cover the left end of the outer shell 1. A through guide hole 403 is opened in the middle of the connecting plate 401. Parallel threaded rods 404 are fixedly installed on the right side wall of the connecting plate 401. The threaded rods 404 pass through the round holes of the fixing plate 306, and a control panel is fixedly installed on the right end of the threaded rods 404. The control panel is easy to move. Two threaded rods 404 are fitted with symmetrical limiting rings. By rotating the two limiting rings on the threaded rods 404 and moving them in opposite directions, the protective plate 4 can be grasped and moved left and right to adjust its position. Then, the two limiting rings on the threaded rods 404 are rotated and moved in opposite directions. The side walls of the two limiting rings are pressed tightly against the two side walls of the fixed plate 306, which firmly restricts the threaded rods 404 and the connecting plate 401. In this way, the protective plate 4 at the left end of the connecting plate 401 will not deviate when pushing debris on the road. During the process of the protective plate 4 moving to the left, the debris on the road will be pushed to both sides of the device, avoiding contact between heavier debris and the outer shell 1, which would cause damage to the surface of the outer shell 1, thus protecting the device.

[0025] The inner wall of the outer casing 1 is fixedly equipped with symmetrical support plates 101, on which road detection radar 102 is mounted. The two support plates 101 provide stable support for the road detection radar 102. A display screen 103 is installed on the road detection radar 102. A receiving antenna 104 is fixedly installed at the bottom of the road detection radar 102. The receiving antenna 104 at the bottom of the road detection radar 102 receives radar signals reflected from underground roads. These signals are processed to provide relevant information. The received signals are processed and converted into analyzable data. The display screen 103 presents the received data and processing results to the user in a graphical manner, which is convenient for operators to monitor and judge in real time. A cantilever plate 105 is fixedly installed on the right side of the outer casing 1, and a handle 106 is fixedly installed on the cantilever plate 105. Grabbing the handle 106 makes it easy to move the entire device.

[0026] A guide rod 301 is fixedly installed on the left end of the bearing plate 3. The guide rod 301 slides through the guide hole 403. When the connecting plate 401 slides left and right, the guide rod 301 is restricted by the guide hole 403, and the connecting plate 401 can only slide left and right to adjust its position. A threaded post 302 is inserted through the circular hole in the middle of the bearing plate 3. A connecting block 303 is fixedly installed on the upper end of the threaded post 302. A threaded hole is opened on the connecting block 303. A fastener 304 is rotatably inserted into the threaded hole of the connecting block 303. Symmetrical limiting devices are rotatably fitted on the annular sidewall of the threaded post 302. The two limiting discs 305 on the threaded column 302 are rotated and moved in opposite directions. Then, the bearing plate 3 is grasped and moved up and down to adjust its position. At the same time, the connecting plate 401 and the protective plate 4 will also move up and down, creating a gap between the bottom of the protective plate 4 and the road surface. Then, the two limiting discs 305 are rotated and moved in opposite directions, and the side walls of the two limiting discs 305 are pressed tightly against the side walls of the bearing plate 3 to stabilize and restrict the bearing plate 3. In this way, the bearing plate 3 will not move up and down. The two fixing slots of the bearing plate 3 are respectively fixedly installed with fixing plates 306, and the middle of the fixing plate 306 has a through round hole.

[0027] Example 2, based on Example 1, such as Figure 1 and Figure 4 As shown, symmetrical side plates 201 are fixedly installed on the right end of the extension plate 2, and through bolts are inserted at both ends of the side plates 201. After removing the side plates 201 and bolts, the extension plate 2 is fixedly welded to the outer shell 1 to secure the extension plate 2. This prevents the extension plate 2 from falling off when touched, avoids the bolts from loosening and failing to secure the extension plate 2 after long-term use, and also saves on component costs.

[0028] The working principle of this embodiment is as follows: In use, the two limiting discs 305 on the threaded post 302 are rotated and moved in opposite directions. Then, the bearing plate 3 is grasped and moved up and down to adjust its position. At the same time, the connecting plate 401 and the protective plate 4 will also move up and down, creating a gap between the bottom of the protective plate 4 and the road surface. Next, the two limiting discs 305 are rotated and moved in opposite directions, pressing the side walls of the two limiting discs 305 against the side walls of the bearing plate 3 to firmly restrict the bearing plate 3, thus preventing it from moving up and down. Then, the two limiting rings on the threaded rod 404 are rotated and moved in opposite directions. Then, the protective plate 4 is grasped and moved left and right to adjust its position. Next, the two limiting rings on the threaded rod 404 are rotated and moved in opposite directions, pressing the side walls of the two limiting rings against the side walls of the fixing plate 306. The wall is squeezed tightly, which firmly restricts the threaded rod 404 and the connecting plate 401. This prevents the protective plate 4 at the left end of the connecting plate 401 from shifting when pushing debris on the road. This pushes the debris on the road to both sides of the device, preventing heavier debris from contacting the outer shell 1 and causing damage to its surface. During the non-destructive testing of road cavities, the receiving antenna 104 at the bottom of the road detection radar 102 receives radar signals reflected from underground. These signals are processed to provide relevant information. The received signals are processed and converted into analyzable data. The display screen 103 presents the received data and processing results to the user in a graphical manner, facilitating real-time monitoring and judgment of road damage by operators.

[0029] The following points should be noted in this article:

[0030] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0031] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A non-destructive testing device for road cavities, comprising: The outer shell (1) has casters installed at the four corners of its bottom; a rectangular groove is provided on the left side of the outer shell (1), and two threaded grooves are provided at both ends of the rectangular groove; through holes are evenly provided at the bottom of the inner cavity of the outer shell (1); an extension plate (2) is fixedly installed at the rectangular groove on the left side of the outer shell (1), and a connecting groove is provided at the bottom of the extension plate (2); a threaded hole is provided on the inner side wall of the left end of the connecting groove of the extension plate (2); a bearing plate (3) is installed at the lower end of the bottom of the extension plate (2), and a through hole is provided in the middle of the bearing plate (3); and a through hole is provided at the upper end of the bearing plate (3). There are two fixed slots; characterized in that a triangular protective plate (4) is fixedly installed at the left end of the left side of the bearing plate (3); a connecting plate (401) is fixedly installed on the inner side of the protective plate (4), and symmetrical anti-detachment rods (402) are fixedly installed on the upper end of the connecting plate (401); a through guide hole (403) is opened in the middle of the connecting plate (401); parallel threaded rods (404) are fixedly installed on the right side wall of the connecting plate (401), and a control panel is fixedly installed on the right end of the threaded rods (404); symmetrical limiting rings are rotatably fitted on the two threaded rods (404).

2. The non-destructive testing device for road cavities according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly installed with mutually symmetrical support plates (101), and a road detection radar (102) is placed on the two support plates (101), and a display screen (103) is installed on the road detection radar (102).

3. The non-destructive testing device for road cavities according to claim 2, characterized in that: The bottom of the road detection radar (102) is fixedly equipped with a receiving antenna (104), and the right side of the housing (1) is fixedly equipped with a cantilever plate (105), and a handle (106) is fixedly installed on the cantilever plate (105).

4. The non-destructive testing device for road cavities according to claim 1, characterized in that: The right end of the extension plate (2) is fixedly installed with symmetrical side plates (201), and the two ends of the side plates (201) are respectively inserted with through bolts. The left side of the extension plate (2) is fixedly installed with parallel fixing blocks (202), and the left end of the fixing blocks (202) is provided with through anti-detachment holes (203).

5. The non-destructive testing device for road cavities according to claim 1, characterized in that: A guide rod (301) is fixedly installed at the left end of the bearing plate (3), and a threaded post (302) is inserted through the round hole in the middle of the bearing plate (3).

6. The non-destructive testing device for road cavities according to claim 5, characterized in that: A connecting block (303) is fixedly installed on the upper end of the threaded post (302), and a through threaded hole is provided on the connecting block (303). A through fastener (304) is rotatably inserted into the threaded hole of the connecting block (303).

7. The non-destructive testing device for road cavities according to claim 5, characterized in that: The threaded column (302) has a symmetrically fitted limiting disc (305) on its annular sidewall. The bearing plate (3) has two fixed slots with fixed plates (306) respectively, and the fixed plate (306) has a through hole in the middle.