A detection device based on safety hazards of roads and bridges

Abstract

The present invention relates to the technical field of bridge detection, and discloses a detection device based on the potential safety hazard of road bridges, including an installation box, a visual detection device is fixedly installed inside the installation box, a first electric telescopic rod is fixedly installed on the outer surface of the installation box, and a first rack is fixedly installed on the left side of the first electric telescopic rod, and a rotating plate is meshed with the upper end of the first rack, and the rotating plate is rotatably set on the installation box. The detection device based on the potential safety hazard of road bridges can use a cleaning brush to brush and clean the surface of the bridge during the moving process to avoid dust adhering to the bridge surface and affecting the detection effect of the bridge, and the dust is sucked after brushing to effectively ensure the cleaning effect. By setting the cleaning structure to flip, the appropriate position can be cleaned according to the different directions of travel, and during the detection process, the installation box is rotated and raised and lowered to ensure that the cleaning brush fits better with the bridge surface.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge detection, and in particular to a detection device based on potential safety hazards of roads and bridges. Background Art

[0002] Roads and bridges are generally composed of several major parts, including roadbeds, pavements, bridges, tunnel projects, and traffic engineering facilities. They are an important part of transportation infrastructure. Therefore, in order to protect the lives and property of the people, it is necessary to regularly inspect road and bridge safety hazards to ensure the safety and stability of road and bridge structures. The main inspection is to see whether there are cracks on the bridges and the surface conditions, so as to facilitate timely maintenance and ensure driving safety.

[0003] Currently, the patent with publication number CN217033652U discloses a road and bridge hidden danger inspection device, which includes a tool cart and an inspection device fixedly mounted on the roof of the tool cart, the inspection device including a lifting mechanism and an inspection box; the lifting mechanism is fixedly connected to the inspection box; the inspection box includes a box body; the bottom surface of the box body is a hollow cubic structure with an open top surface; the box body is rotatably connected to a collection unit on the opposite side; the collection unit is in sliding contact with a side wall of the box body; the lifting mechanism includes a sliding unit and a lifting unit; the top surface of the sliding unit is fixedly connected to the bottom surface of the box body; the lifting unit is rotatably connected to the sliding unit; the bottom surface of the sliding unit is fixedly mounted with a fixing plate, and the bottom surface of the fixing plate is fixedly mounted on the roof of the tool cart. The lifting unit is used to adjust the height of the camera assembly, avoiding the safety hazards caused by the operator's close observation. In addition, the camera assembly is placed in a closed box, eliminating the influence of the external environment on it when idle, thereby increasing its service life.

[0004] However, the following problems still exist during the use of the above-mentioned road and bridge hidden danger inspection device: during the inspection of the bridge, the inspection camera assembly is only lifted by lifting, but the bridge is exposed to the outdoor environment for a long time, and its surface is prone to adhesion of more dust and impurities or weeds may grow in the cracks. Therefore, during the inspection process, it is difficult to ensure that the surface cracks and surface conditions of the bridge are fully inspected, that is, there are large inspection errors, and the bridge cannot be repaired in time. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a detection device based on the safety hazards of roads and bridges. By cleaning the surface of the bridge before detection, it effectively ensures that the surface condition of the bridge is accurately detected.

[0006] The present invention provides the following technical solution: a detection device based on safety hazards of roads and bridges, comprising an installation box, a visual detection device fixedly installed inside the installation box, a first electric telescopic rod fixedly installed on the outer surface of the installation box, and a first rack fixedly installed on the left side of the first electric telescopic rod, and a rotating plate meshed with the upper end of the first rack, the rotating plate rotatably set on the installation box, a receiving plate fixedly installed on the left side of the rotating plate, and a negative pressure tube symmetrically penetrated on the receiving plate, and a negative pressure fan fixedly installed on the lower end of the negative pressure tube, cleaning brushes are installed on the upper and lower ends of the receiving plate, and connecting plates are installed on the upper and lower ends of the receiving plate, and an adsorption device is penetrated on the connecting plate, a blocking plate is tightly fitted inside the receiving plate, and a first permanent magnet is fixedly installed on the right side of the blocking plate, and a second permanent magnet is fixedly installed on the left side of the blocking plate, a first electromagnet is fixedly installed on the left side of the installation box, and a second electromagnet is fixedly installed on the right side of the installation box.

[0007] Furthermore, an additional plate is fixedly installed in the middle position of the lower end of the installation box, and a cylindrical groove is provided in the middle position of the additional plate, and a vortex spring is fixedly installed in the cylindrical groove provided on the additional plate, and a fixed shaft is fixedly installed at the other end of the vortex spring, and a lifting plate is fixedly installed at the lower end of the fixed shaft. Through the above structure, the installation box can be supported and driven to return under the action of the vortex spring and the fixed shaft.

[0008] Furthermore, two laser flaw detection devices are symmetrically installed on the left and right sides of the upper surface of the lifting plate, and two squeezing sponges are symmetrically installed on the left and right sides of the lower surface of the installation box, and the lower ends of the squeezing sponges are in contact with the upper surface of the lifting plate, and support rollers are rotatably installed on the left and right sides of the upper surface of the installation box. Through the above structure, it is convenient to fit with the lower end of the bridge through the support rollers, thereby ensuring that the installation box is located at the exact lower end of the bridge.

[0009] Furthermore, two square slide grooves are symmetrically provided on the left and right sides of the lifting plate, and guide plates are slidably provided in the two square slide grooves provided on the lifting plate, and protective plates are fixedly installed at the lower ends of the two guide plates, and a negative pressure fan is fixedly installed at the middle position of the upper end of the protective plate, and a support spring is fixedly installed at the lower end of the lifting plate, and a protective plate is fixedly installed at the lower end of the support spring. Through the above structure, the lifting plate can be easily limited by the guide plate to ensure the moving range of the lifting plate.

[0010] Furthermore, a square plate-shaped structure is provided at the lower end of the protective plate, and a fixed gear is fixedly installed on the square plate-shaped structure at the lower end of the protective plate, and a second rack is meshed with the lower end of the fixed gear, and a second electric telescopic rod is fixedly installed on the right side of the second rack, and the second electric telescopic rod is fixedly installed at the lower end of the protective plate. Through the above structure, the fixed gear can be driven to rotate by the movement of the second rack, thereby driving the installation box to rotate.

[0011] Furthermore, a lifting plate is rotatably installed at the lower left end of the protective plate, and two limiting slide bars are symmetrically installed on the left and right sides of the lower end of the lifting plate, and the two limiting slide bars are in a staggered distribution state. The outer surface of the limiting slide bar is set to be smooth. Through the above structure, it is convenient to reduce the friction between the limiting slide bar and the upper sliding plate, and ensure that the upper sliding plate slides smoothly.

[0012] Furthermore, a return spring is fixedly installed at the lower end of the lifting plate, and an upper sliding plate is fixedly installed on the return spring. A through sliding hole is opened in the middle position of the upper sliding plate, and the upper sliding plate is slidably connected with the limiting sliding rod through the through sliding hole. Through the above structure, the return spring can assist in driving the upper sliding plate to return to its original position, while avoiding the situation where the installation box is offset.

[0013] Furthermore, a lifting turntable is rotatably provided at the lower end of the upper sliding plate, and a lower sliding plate is installed at the lower end of the lifting turntable, and a hydraulic telescopic rod is fixedly installed on the lower sliding plate. Through the above structure, the upper sliding plate can be driven to move by rotating the lifting turntable.

[0014] Furthermore, a fixed base plate is fixedly installed at the lower end of the hydraulic telescopic rod, and a universal wheel is installed at the lower end of the fixed base plate. A fixed rail is fixedly installed on the upper surface of the fixed base plate, and a connecting slide column is slidably arranged on the fixed rail, and the connecting slide column is fixedly installed on the lower sliding plate. Through the above structure, it is convenient to provide auxiliary support to the lower sliding plate through the connecting slide column, thereby avoiding the hydraulic telescopic rod from bearing a large gravity.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This detection equipment based on road and bridge safety hazards can use a cleaning brush to brush and clean the surface of the bridge during the moving process to avoid dust adhering to the bridge surface and affecting the detection effect of the bridge, and performs dust suction after brushing to effectively ensure the cleaning effect. By setting the cleaning structure to a flipping mode, it can clean the appropriate position according to the direction of travel to ensure the utilization rate of the device, and in the process of detection, the installation box is rotated and lifted to ensure that the cleaning brush fits better with the bridge surface, and the distance between the visual detection device and the bridge is guaranteed to ensure the focusing effect of the shooting. Through the "scissor-type" lifting, a large degree of lifting can be performed within a smaller moving range to ensure the lifting height of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the installation box of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting and rotating plate of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the hydraulic telescopic rod of the present invention; Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixed track of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the return spring of the present invention; Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixed gear of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the rotating plate of the present invention; Figure 9 Schematic diagram of the three-dimensional cross-sectional structure of the scroll spring of the present invention; Figure 10 This is a schematic diagram of the three-dimensional cross-sectional structure of the first electromagnet of the present invention; Figure 11 This is a schematic diagram of the three-dimensional cross-sectional structure of the receiving plate of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point A in the middle.

[0017] In the figure: 1. Installation box; 2. Visual inspection device; 3. First electric telescopic rod; 4. First rack; 5. Rotating plate; 6. Attachment plate; 7. Negative pressure pipe; 8. Negative pressure fan; 9. Cleaning brush; 10. Connecting plate; 11. Adsorption device; 12. Blocking plate; 13. First permanent magnet; 14. Second permanent magnet; 15. First electromagnet; 16. Second electromagnet; 17. Mounting plate; 18. Scroll spring; 19. Fixed shaft; 20. Lifting plate; 21. Laser flaw detection device; 22. Squeeze sponge; 23. Guide plate; 24. Protective plate; 25. Support spring; 26. Fixed gear; 27. Second rack; 28. Second electric telescopic rod; 29. ​​Lifting plate; 30. Limiting slide bar; 31. Return spring; 32. Upper sliding plate; 33. Lifting turn plate; 34. Lower sliding plate; 35. Hydraulic telescopic rod; 36. Fixed bottom plate; 37. Universal wheel; 38. Connecting slide column; 39. Fixed track; 40. Support roller. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figures 1-12The present invention provides a technical solution: a detection device based on safety hazards of roads and bridges, comprising an installation box 1, in which a visual detection device 2 is fixedly installed, a lifting plate 29 is rotatably installed at the lower left end of the protective plate 24, and two limiting slide bars 30 are symmetrically installed on the left and right sides of the lower end of the lifting plate 29, and the two limiting slide bars 30 are in a staggered distribution state, and the outer surface of the limiting slide bar 30 is set to be smooth, a return spring 31 is fixedly installed at the lower end of the lifting plate 29, and an upper sliding plate 32 is fixedly installed on the return spring 31, and a sliding hole is opened in the middle position of the upper sliding plate 32 , and the upper sliding plate 32 is slidably connected with the limiting sliding rod 30 through a sliding hole. The lower end of the upper sliding plate 32 is rotatably provided with a lifting rotating plate 33, and the lower end of the lifting rotating plate 33 is installed with a lower sliding plate 34, and a hydraulic telescopic rod 35 is fixedly installed on the lower sliding plate 34, and a fixed base plate 36 is fixedly installed on the lower end of the hydraulic telescopic rod 35, and a universal wheel 37 is installed on the lower end of the fixed base plate 36, and a fixed rail 39 is fixedly installed on the upper surface of the fixed base plate 36, and a connecting slide column 38 is slidably provided on the fixed rail 39, and the connecting slide column 38 is fixedly installed on the lower sliding plate 34.

[0020] The position of the device can be moved by the universal wheel 37. When it moves to the lower end of the bridge, the hydraulic telescopic rod 35 starts to work. Because the lower sliding plate 34 is fixedly installed on the hydraulic telescopic rod 35, the two lower sliding plates 34 start to move towards each other. The movement range of the lower sliding plates 34 can be limited by connecting the sliding column 38 and the fixed track 39, so that the lower sliding plates 34 can be auxiliary supported. As the lower sliding plates 34 move, the lifting turntable 33 starts to rotate, thereby driving the upper sliding plate 32 to move. The upper surface of the upper sliding plate 32 fits with the lower surface of the lifting plate 29. 2 forms a sliding connection with the limit slide bar 30, and a return spring 31 is fixedly installed on the upper sliding plate 32, and the return spring 31 is connected to the lifting plate 29. At this time, the return spring 31 begins to be squeezed and deformed. Under the action of the return spring 31, the upper sliding plates 32 on the left and right sides can be supported, so that the telescopic distances of the two hydraulic telescopic rods 35 are equal. At this time, the installation box 1 can be ensured to be located in the middle position of the device, and as the upper sliding plate 32 moves, the lifting plate 29 begins to move upward. Because the installation box 1 is provided on the upper end of the lifting plate 29, the installation box 1 begins to be lifted to the specified height, which is convenient for subsequent inspection of the bridge surface.

[0021] An additional plate 17 is fixedly installed in the middle of the lower end of the installation box 1, and a cylindrical groove is opened in the middle of the additional plate 17, and a spiral spring 18 is fixedly installed in the cylindrical groove opened on the additional plate 17. A fixed shaft 19 is fixedly installed at the other end of the spiral spring 18, and a lifting plate 20 is fixedly installed at the lower end of the fixed shaft 19. Two laser flaw detection devices 21 are symmetrically installed on the left and right sides of the upper surface of the lifting plate 20. Two squeezing sponges 22 are symmetrically installed on the left and right sides of the lower surface of the installation box 1, and the squeezing sponge 22 The lower end is in contact with the upper surface of the lifting plate 20, and support rollers 40 are rotatably installed on the left and right sides of the upper surface of the installation box 1. Two square slides are symmetrically provided on the left and right sides of the lifting plate 20, and guide plates 23 are slidably provided in the two square slides provided on the lifting plate 20, and protective plates 24 are fixedly installed at the lower ends of the two guide plates 23, and a negative pressure fan 8 is fixedly installed at the middle position of the upper end of the protective plate 24, and a support spring 25 is fixedly installed at the lower end of the lifting plate 20, and a protective plate 24 is fixedly installed at the lower end of the support spring 25.

[0022] As the installation box 1 rises and moves toward the direction close to the bridge, until the support roller 40 is closely fitted with the lower surface of the bridge and the support roller 40 is squeezed to a certain extent, the lifting plate 20 begins to slide along the guide plate 23, thereby effectively ensuring the moving range of the lifting plate 20, and the support spring 25 is installed at the lower end of the lifting plate 20. At this time, the support spring 25 begins to be squeezed and deformed. At this time, as the support roller 40 is fitted with the lower surface of the bridge, the distance between the visual inspection device 2 and the laser flaw detection device 21 and the bridge basically does not change, effectively ensuring the inspection effect, and because The bridge is not flat, and it has a certain slope in some places. At this time, the support roller 40 fits tightly with the lower surface of the bridge, and the installation box 1 begins to be in an inclined state. Because the lower end of the installation box 1 is fixedly installed with an additional plate 17, and the inner surface of the additional plate 17 is fixedly installed with a spiral spring 18, and the spiral spring 18 is fixedly installed on the outer surface of the fixed shaft 19, the spiral spring 18 begins to be squeezed and deformed. At this time, the squeezing sponge 22 installed at the lower end of the installation box 1 begins to be squeezed, which can ensure that the visual detection device 2 is always parallel to the lower surface of the bridge, thereby ensuring the detection effect.

[0023] A first electric telescopic rod 3 is fixedly installed on the outer surface of the installation box 1, and a first rack 4 is fixedly installed on the left side of the first electric telescopic rod 3, and a rotating plate 5 is meshed with the upper end of the first rack 4, and the rotating plate 5 is rotatably set on the installation box 1, and a receiving plate 6 is fixedly installed on the left side of the rotating plate 5, and a negative pressure pipe 7 is symmetrically provided on the receiving plate 6, and a negative pressure fan 8 is fixedly installed on the lower end of the negative pressure pipe 7, cleaning brushes 9 are installed on the upper and lower ends of the receiving plate 6, and connecting plates 10 are installed on the upper and lower ends of the receiving plate 6, and an adsorption device 11 is passed through the connecting plate 10, a blocking plate 12 is tightly fitted inside the receiving plate 6, and a first permanent magnet 13 is fixedly installed on the right side of the blocking plate 12, and a second permanent magnet 14 is fixedly installed on the left side of the blocking plate 12, a first electromagnet 15 is fixedly installed on the left side of the installation box 1, and a second electromagnet 16 is fixedly installed on the right side of the installation box 1.

[0024] As the lower surface of the bridge needs to be inspected, the device can be pushed to move. At this time, the cleaning brush 9 begins to brush and clean the lower surface of the bridge, thereby cleaning the dust and weeds on the surface of the bridge. Then the negative pressure fan 8 starts to work, and negative pressure begins to be generated inside the negative pressure fan 8 (a filtering structure is provided inside the negative pressure fan 8, which can filter the inhaled air and discharge it). Because the negative pressure fan 8 is provided with a negative pressure pipe 7 (the negative pressure pipe 7 is provided as a hose and can be bent), and the negative pressure pipe 7 is connected to the adsorption device 11 through the connecting plate 10, the clean loose dust and impurities begin to be adsorbed, ensuring the cleaning effect of the bridge and facilitating the inspection effect of the bridge. When the direction of travel of the device changes, the first electric telescopic rod 3 starts to work. , because the first rack 4 is fixedly installed on the first electric telescopic rod 3, the first rack 4 starts to move at this time, because the first rack 4 is engaged with the gear structure provided on the rotating plate 5, the rotating plate 5 starts to rotate clockwise at this time, and because the rotating plate 5 is installed with the receiving plate 6, the receiving plate 6 also starts to rotate at this time, and the first permanent magnet 13 is no longer attracted by the first electromagnet 15 (after the first electromagnet 15 is energized, the left polarity is opposite to the right polarity of the first permanent magnet 13, and after the second electromagnet 16 is energized, the right polarity is opposite to the left polarity of the second permanent magnet 14). At this time, as the receiving plate 6 rotates, the receiving plate 6 starts to rotate to the right side of the installation box 1, and the second electromagnet 16 and the second permanent magnet 14 are attracted to each other, and the blocking plate 12 starts to move. Figure 12 The blocking plate 12 in the middle moves to the left side of the receiving plate 6, and the right side of the receiving plate 6 begins to be blocked, thereby ensuring that only the adsorption device 11 at the upper end will work to absorb dust.

[0025] A square plate structure is provided at the lower end of the protective plate 24, and a fixed gear 26 is fixedly installed on the square plate structure at the lower end of the protective plate 24, and a second rack 27 is meshed with the lower end of the fixed gear 26, and a second electric telescopic rod 28 is fixedly installed on the right side of the second rack 27, and the second electric telescopic rod 28 is fixedly installed at the lower end of the protective plate 24.

[0026] When the device needs to be in a vertical state to inspect the bridge pier, the second electric telescopic rod 28 starts to work. Since the second electric telescopic rod 28 is fixedly mounted with a second rack 27, the second rack 27 starts to move. Since the second rack 27 is engaged with the lower end of the fixed gear 26, the fixed gear 26 starts to rotate. Since the fixed gear 26 is fixedly mounted on the lower end of the protective plate 24, and the protective plate 24 is rotatably connected to the lifting plate 29, as the fixed gear 26 rotates, the protective plate 24 also starts to rotate until the protective plate 24 rotates to a vertical state, thereby enabling surface inspection of the bridge pier.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for potential safety hazards of roads and bridges, comprising an installation box (1) in which a visual detection device (2) is fixedly installed, characterized in that: Also includes: A first electric telescopic rod (3) is fixedly mounted on the outer surface of the installation box (1), and a first rack (4) is fixedly mounted on the left side of the first electric telescopic rod (3), and a rotating plate (5) is meshedly arranged at the upper end of the first rack (4), and the rotating plate (5) is rotatably arranged on the installation box (1), a receiving plate (6) is fixedly mounted on the left side of the rotating plate (5), and a negative pressure pipe (7) is symmetrically arranged on the receiving plate (6), and a negative pressure fan (8) is fixedly mounted at the lower end of the negative pressure pipe (7), and the receiving plate (6) is installed at both upper and lower ends. A cleaning brush (9) is provided, and connecting plates (10) are installed at both upper and lower ends of the receiving plate (6), and an adsorption device (11) is provided through the connecting plate (10); a blocking plate (12) is tightly fitted inside the receiving plate (6), and a first permanent magnet (13) is fixedly installed on the right side of the blocking plate (12), and a second permanent magnet (14) is fixedly installed on the left side of the blocking plate (12); a first electromagnet (15) is fixedly installed on the left side of the installation box (1), and a second electromagnet (16) is fixedly installed on the right side of the installation box (1).

2. The detection device based on road and bridge safety hazards according to claim 1 is characterized in that: An additional plate (17) is fixedly mounted at the middle position of the lower end of the installation box (1), and a cylindrical groove is provided in the middle position of the additional plate (17). A volute spring (18) is fixedly mounted in the cylindrical groove provided on the additional plate (17), and a fixed shaft (19) is fixedly mounted at the other end of the volute spring (18), and a lifting plate (20) is fixedly mounted at the lower end of the fixed shaft (19).

3. The detection device based on road and bridge safety hazards according to claim 2 is characterized in that: Two laser flaw detection devices (21) are symmetrically mounted on the left and right sides of the upper surface of the lifting plate (20), and two squeezing sponges (22) are symmetrically mounted on the left and right sides of the lower surface of the installation box (1), and the lower ends of the squeezing sponges (22) are in contact with the upper surface of the lifting plate (20), and support rollers (40) are rotatably mounted on the left and right sides of the upper surface of the installation box (1).

4. The detection device based on road and bridge safety hazards according to claim 3 is characterized in that: The lifting plate (20) has two square slide grooves symmetrically arranged on the left and right sides, and guide plates (23) are slidably arranged in the two square slide grooves arranged on the lifting plate (20), and protective plates (24) are fixedly installed at the lower ends of the two guide plates (23), and a negative pressure fan (8) is fixedly installed at the middle position of the upper end of the protective plate (24), and a support spring (25) is fixedly installed at the lower end of the lifting plate (20), and the protective plate (24) is fixedly installed at the lower end of the support spring (25).

5. The detection device based on road and bridge safety hazards according to claim 4 is characterized in that: A square plate-like structure is provided at the lower end of the protective plate (24), and a fixed gear (26) is fixedly mounted on the square plate-like structure at the lower end of the protective plate (24), and a second rack (27) is meshedly provided at the lower end of the fixed gear (26), a second electric telescopic rod (28) is fixedly mounted on the right side of the second rack (27), and the second electric telescopic rod (28) is fixedly mounted at the lower end of the protective plate (24).

6. The detection device based on road and bridge safety hazards according to claim 5 is characterized in that: A lifting plate (29) is rotatably mounted on the left lower end of the protective plate (24), and two limit slide bars (30) are symmetrically mounted on the left and right sides of the lower end of the lifting plate (29), and the two limit slide bars (30) are in a staggered distribution state, and the outer surface of the limit slide bar (30) is set to be smooth.

7. The detection device based on road and bridge safety hazards according to claim 6 is characterized by: A return spring (31) is fixedly mounted on the lower end of the lifting plate (29), and an upper sliding plate (32) is fixedly mounted on the return spring (31). A through sliding hole is provided in the middle of the upper sliding plate (32), and the upper sliding plate (32) is slidably connected to the limiting sliding rod (30) via the through sliding hole.

8. The detection device based on road and bridge safety hazards according to claim 7 is characterized in that: A lifting rotating plate (33) is rotatably provided at the lower end of the upper sliding plate (32), a lower sliding plate (34) is installed at the lower end of the lifting rotating plate (33), and a hydraulic telescopic rod (35) is fixedly installed on the lower sliding plate (34).

9. The detection device based on road and bridge safety hazards according to claim 8 is characterized in that: A fixed base plate (36) is fixedly mounted on the lower end of the hydraulic telescopic rod (35), and a universal wheel (37) is mounted on the lower end of the fixed base plate (36). A fixed track (39) is fixedly mounted on the upper surface of the fixed base plate (36), and a connecting slide column (38) is slidably arranged on the fixed track (39), and the connecting slide column (38) is fixedly mounted on the lower sliding plate (34).

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