A tunnel lining steel bar corrosion condition detection device

Abstract

The utility model provides a kind of tunnel lining reinforcing bar corrosion condition detection device, including base, be provided with screw block group on base, first screw rod one end is equipped with hand wheel, be provided with lifting assembly on screw block group, lifting assembly includes support seat, support seat bottom is connected with the slider of screw block group, lifting assembly top is provided with lifting plate, lifting plate top is provided with adjusting assembly and corrosion detector, be provided with detection assembly on adjusting assembly, detection assembly includes mounting plate, mounting plate is arc, rotating shaft is provided with in mounting plate both sides, adjusting assembly package has multiple electric cylinders, electric cylinder tail end is equipped in rotating shaft, two groups of push rod are provided on base, push rod is installed in first screw rod both ends.The device passes through lifting assembly, the lifting of detection assembly is realized, improves the ability of device detection different height reinforcing bar;The device passes through adjusting assembly, reach the purpose of adjusting detection angle and position, increase the applicability of detection.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel engineering inspection technology, and more specifically, it relates to a device for detecting the corrosion of steel reinforcement in tunnel lining. Background Technology

[0002] In the field of tunnel engineering inspection, it is often necessary to use detection devices to detect the corrosion of tunnel lining steel bars. In the daily maintenance of tunnels, in order to grasp the corrosion status of steel bars in a timely manner and ensure the safety of tunnel structure, staff often conduct regular inspections of the lining steel bars. However, traditional detection devices do not have an adjustment structure, which makes it difficult for the detection components to quickly reach the detection position due to the complex internal environment of the tunnel and the diverse positions of the steel bars. If the detection position is inaccurate, the error in the detection data can easily lead to misjudgment of the corrosion status of the steel bars, which can easily result in inappropriate maintenance measures. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a device for detecting the corrosion status of steel reinforcement in tunnel linings, thereby solving the technical problem that traditional detection devices in the prior art lack an adjustable structure.

[0004] The purpose and effectiveness of this utility model's device for detecting the corrosion status of tunnel lining steel bars are achieved through the following specific technical means: A device for detecting the corrosion of steel reinforcement in tunnel lining includes a base, on which a screw-slider assembly is mounted. A handwheel is fitted onto one end of the first screw. A lifting component is mounted on the screw-slider assembly, and the lifting component includes a support base. The bottom of the support base is connected to the slider of the screw-slider assembly. A lifting plate is mounted on the top of the lifting component. An adjustment component and a corrosion detector are mounted above the lifting plate. A detection component is mounted on the adjustment component, and the detection component includes a mounting plate. The mounting plate is arc-shaped, and rotating shafts are mounted on both sides of the mounting plate. The adjustment component includes multiple sets of electric cylinders, with the tail ends of the electric cylinders fitted onto the rotating shafts. Two sets of push rods are mounted on the base, and the push rods are installed at both ends of the first screw.

[0005] According to a preferred embodiment, the adjustment assembly further includes a sliding plate and a sliding rod. The sliding plate is disposed on the lifting plate and has a sliding groove. The two sets of electric cylinder shaft ends are engaged in the sliding groove. The electric cylinder shaft ends have through holes. The sliding rod passes through the through holes and its two ends are engaged in the sliding groove.

[0006] According to a preferred embodiment, the lifting plate is provided with two sets of mounting seats, and the other two sets of electric cylinder shaft ends are locked in the mounting seats.

[0007] According to a preferred embodiment, the detection assembly further includes multiple sets of detection heads and pressure plates, the mounting plate has multiple sets of mounting holes, the detection head is U-shaped, one end of the detection head passes through two sets of mounting holes, and the top of the pressure plate is attached to the bottom of the mounting plate.

[0008] According to a preferred embodiment, multiple sets of springs are provided between the pressure plate and the mounting plate, and annular grooves are provided at the bottom of the detection head and on the pressure plate, with the springs being engaged in the upper and lower sets of annular grooves.

[0009] According to a preferred embodiment, the lifting assembly further includes a motor and a moving rod. The motor is mounted on the support base, and through slots are provided on both sides of the support base. Both ends of the moving rod are engaged in the through slots, and a second lead screw passes through the moving rod. The motor shaft end is connected to one end of the second lead screw.

[0010] According to a preferred embodiment, the support base is provided with two sets of shearing arms, one end of each shearing arm has a rotating hole, the rotating hole is fitted onto the moving rod, and the two sets of shearing arms are connected to the bottom of the lifting plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention, by adjusting the component settings, allows users to adjust the position and angle of the detection component according to the actual condition of the reinforcing bars in different locations within the tunnel, thus improving the device's environmental adaptability. After moving the device to the area to be inspected in the tunnel, the user can operate the electric cylinder to change the orientation of the mounting plate, allowing for convenient alignment of the detection head with the tunnel lining reinforcing bars for inspection, thereby enhancing the device's ability to accurately detect corrosion in complex environments.

[0012] When using this device, the user can control the movement of the lifting component by turning the handwheel, allowing the user to adjust the position of the lifting component and improving the convenience of detection at different positions. Then, the motor drives the second lead screw to rotate, causing the moving rod to drive the shearing arm, thereby enabling the lifting plate to rise and fall smoothly, improving the reliability of the device's detection data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is the front view of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the lifting assembly; Figure 5This is a schematic diagram of the exploded structure of the detection component; Figure 6 This is a schematic diagram of the exploded structure of the regulating component.

[0014] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Base; 12. Slide groove; 13. First lead screw; 14. Handwheel; 15. Push rod; 16. Support seat; 17. Motor; 18. Shearing arm; 19. Rotating shaft; 21. Mounting plate; 22. Detection head; 23. Pressure plate; 24. Electric cylinder; 25. Mounting seat; 26. Rust detector; 27. Lifting plate; 28. Second lead screw; 29. ​​Moving rod; 31. Spring; 32. Annular groove; 33. Slide rod; 34. Slide plate; 35. Through hole; 36. Through groove; 37. Mounting hole. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example

[0016] like Figures 1 to 6 As shown, this utility model provides a device for detecting the corrosion of steel reinforcement in tunnel lining, including a base 11. The base 11 serves as the support for the entire device, bearing other components. A screw-slider assembly is mounted on the base 11, with a handwheel 14 fitted onto one end of the first screw 13. The handwheel 14 allows the operator to manually control the rotation of the first screw 13. A lifting assembly is connected to the screw-slider assembly, which includes a support base 16. The bottom of the support base 16 is connected to the slider of the screw-slider assembly, allowing the support base 16 to move laterally as the slider moves along with the first screw 13. A lifting plate 27 is mounted on the top of the lifting assembly, providing a mounting platform for the components above. Above the lifting plate 27, an adjustment assembly and a corrosion detector 26 are placed; the corrosion detector 26 can be a GTJ-XSY steel reinforcement corrosion detector. A detection assembly is mounted on the adjustment assembly, and the mounting plate 21 of the detection assembly is arc-shaped. The shape of the mounting plate 21 is conducive to conforming to the curvature of the tunnel lining, facilitating the detection of steel bars at different locations. Rotating shafts 19 are provided on both sides of the mounting plate 21. The adjustment assembly includes multiple sets of electric cylinders 24, the tail ends of which are sleeved on the rotating shafts 19. By extending and retracting the electric cylinders 24, the mounting plate 21 can be rotated around the rotating shafts 19, thereby adjusting the angle of the detection assembly. Additionally, two sets of push rods 15 are provided on the base 11. These two sets of push rods 15 are respectively installed at both ends of the first lead screw 13. Operators can use the push rods 15 to move the entire device to a suitable detection position within the tunnel, improving the device's mobility and convenience.

[0017] like Figures 2 to 3 , Figure 6 As shown, in addition to the previously mentioned components, the adjustment assembly also includes a slide plate 34 and a sliding rod 33. The slide plate 34 is placed on the lifting plate 27, which provides mounting positions for some components of the adjustment assembly. A groove 12 is formed on the slide plate 34, and the shaft ends of the two sets of electric cylinders 24 are engaged within the groove 12. This engagement method allows the electric cylinders 24 to move within a certain range within the groove 12. A through hole 35 is also formed at the shaft end of the electric cylinders 24, and the sliding rod 33 passes through the through hole 35, with both ends of the sliding rod 33 also engaged within the groove 12. The sliding rod 33 serves as a guide, ensuring the stability of the electric cylinders 24 during extension and retraction, thereby ensuring that the mounting plate 21 can be adjusted according to the expected direction and angle, improving the reliability and stability of the adjustment assembly.

[0018] Two sets of mounting seats 25 are also provided on the lifting plate 27. The shaft ends of two additional sets of electric cylinders 24 are engaged within these two sets of mounting seats 25. By mounting the shaft ends of the electric cylinders 24 within the mounting seats 25, these two sets of electric cylinders 24 can provide more stable support and adjustment for the components above the lifting plate 27. This arrangement increases the overall stability of the adjustment assembly, making the detection assembly more stable during adjustment and thus improving the accuracy of the detection data.

[0019] like Figures 2 to 3 , Figure 5 As shown, the detection assembly, in addition to the mounting plate 21, includes multiple sets of detection heads 22 and a pressure plate 23. The mounting plate 21 has multiple sets of mounting holes 37. The detection heads 22 are U-shaped, enabling the detection of steel reinforcement corrosion. One end of the detection head 22 passes through two sets of mounting holes 37, thus fixing the detection head 22 to the mounting plate 21. The top of the pressure plate 23 fits against the bottom of the mounting plate 21. The pressure plate 23, in conjunction with the spring 31, further secures the detection heads 22, preventing them from loosening during detection and ensuring the stability and reliability of the detection.

[0020] Multiple sets of springs 31 are installed between the pressure plate 23 and the mounting plate 21. Annular grooves 32 are provided on the bottom of the detection head 22 and on the pressure plate 23, and the springs 31 are engaged within the upper and lower sets of annular grooves 32. The springs 31 have a certain degree of elasticity, ensuring sufficient contact between the detection head 22 and the tunnel wall. Furthermore, after use, the elasticity of the springs 31 helps to reset the detection head 22, facilitating its next use.

[0021] like Figures 2 to 4As shown, the lifting assembly, in addition to the support base 16 and the lifting plate 27, also includes a motor 17 and a moving rod 29. The motor 17 is mounted on the support base 16, providing power for the movement of the lifting assembly. Through slots 36 are formed on both sides of the support base 16, and both ends of the moving rod 29 are engaged within these slots. A second lead screw 28 passes through the moving rod 29. The shaft end of the motor 17 is connected to one end of the second lead screw 28. When the motor 17 starts, it drives the second lead screw 28 to rotate, thereby causing the moving rod 29 to move up and down within the through slots 36, achieving a smooth lifting function for the lifting assembly.

[0022] Two sets of shear arms 18 are mounted on the support base 16. One end of each shear arm 18 has a rotating hole that fits onto the moving rod 29. The other ends of the two shear arms 18 are connected to the bottom of the lifting plate 27. This connection method of the shear arms 18 enhances the structural strength of the lifting assembly, making the lifting plate 27 more stable during lifting and less prone to swaying. This provides a more stable working platform for the detection assembly, further ensuring the reliability and accuracy of the detection data.

[0023] The specific usage and function of this embodiment are as follows: When using this tunnel lining steel reinforcement corrosion detection device, the operator first moves the device to the approximate location inside the tunnel to be detected. Then, the handwheel 14 is turned, which drives the first lead screw 13 to rotate. The slider of the lead screw slider assembly moves on the first lead screw 13, adjusting the lateral position of the lifting assembly so that the detection assembly reaches the area below the tunnel inner wall to be detected.

[0024] The motor 17, mounted on the support base 16, is started. The motor 17 drives the second lead screw 28 to rotate, which in turn drives the movable rod 29, which passes through the rod and whose two ends are locked in the through slots 36 of the support base 16, to move. A shearing arm 18 is sleeved on the movable rod 29 and is connected to the bottom of the lifting plate 27. This adjusts the height of the lifting plate 27 so that the detection component is close to the inner wall of the tunnel to be inspected.

[0025] Next, the electric cylinder 24 in the control and adjustment assembly is used. The tail end of the electric cylinder 24 is fitted onto the rotating shafts 19 on both sides of the mounting plate 21, and its shaft end is locked in the slide groove 12 of the sliding plate 34 and has a sliding rod 33 passing through it. When the electric cylinder 24 extends or retracts, it drives the mounting plate 21 to rotate around the rotating shaft 19, and at the same time moves within the slide groove 12 of the sliding plate 34, thereby adjusting the angle and position of the detection assembly so that the U-shaped detection head 22 on the mounting plate 21 is aligned with the reinforcing bar. One end of the detection head 22 passes through the mounting hole 37 on the mounting plate 21, and the spring 31 between the pressure plate 23 and the mounting plate 21 is locked in the bottom of the detection head 22 and the annular groove 32 of the pressure plate 23, which allows the detection head 22 to make full contact with the inner wall of the tunnel. The corrosion detector 26 is used to obtain data on the corrosion status of the reinforcing bar through the detection head 22.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A device for detecting the corrosion status of tunnel lining steel reinforcement, comprising a base (11), characterized in that: The base (11) is provided with a lead screw and slider assembly. A handwheel (14) is sleeved on one end of the first lead screw (13). A lifting assembly is provided on the lead screw and slider assembly. The lifting assembly includes a support seat (16). The bottom of the support seat (16) is connected to the slider of the lead screw and slider assembly. A lifting plate (27) is provided on the top of the lifting assembly. An adjustment assembly and a rust detector (26) are provided above the lifting plate (27). A detection assembly is provided on the adjustment assembly. The detection assembly includes a mounting plate (21). The mounting plate (21) is arc-shaped. Rotating shafts (19) are provided on both sides of the mounting plate (21). The adjustment assembly includes multiple sets of electric cylinders (24). The tail end of the electric cylinder (24) is sleeved on the rotating shaft (19). Two sets of push rods (15) are provided on the base (11). The push rods (15) are installed at both ends of the first lead screw (13).

2. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 1, characterized in that: The adjustment assembly also includes a sliding plate (34) and a sliding rod (33). The sliding plate (34) is mounted on the lifting plate (27). A sliding groove (12) is provided on the sliding plate (34). The shaft ends of two sets of electric cylinders (24) are locked in the sliding groove (12). A through hole (35) is provided at the shaft end of the electric cylinder (24). The sliding rod (33) passes through the through hole (35). Both ends of the sliding rod (33) are locked in the sliding groove (12).

3. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 2, characterized in that: The lifting plate (27) is provided with two sets of mounting seats (25), and the shaft ends of the other two sets of electric cylinders (24) are locked in the mounting seats (25).

4. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 1, characterized in that: The detection assembly also includes multiple sets of detection heads (22) and pressure plates (23). Multiple sets of mounting holes (37) are provided on the mounting plate (21). The detection head (22) is U-shaped. One end of the detection head (22) passes through two sets of mounting holes (37). The top of the pressure plate (23) is attached to the bottom of the mounting plate (21).

5. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 4, characterized in that: Multiple sets of springs (31) are provided between the pressure plate (23) and the mounting plate (21). The bottom of the detection head (22) and the pressure plate (23) are both provided with annular grooves (32). The springs (31) are locked in the upper and lower sets of annular grooves (32).

6. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 1, characterized in that: The lifting assembly also includes a motor (17) and a moving rod (29). The motor (17) is mounted on the support base (16). The support base (16) has through slots (36) on both sides. The moving rod (29) is fitted into the through slots (36) at both ends. A second lead screw (28) passes through the moving rod (29). The shaft end of the motor (17) is connected to one end of the second lead screw (28).

7. The device for detecting the corrosion status of tunnel lining steel reinforcement according to claim 6, characterized in that: Two sets of shearing arms (18) are provided on the support base (16). One end of each shearing arm (18) has a rotating hole, which is fitted onto the moving rod (29). The two sets of shearing arms (18) are connected to the bottom of the lifting plate (27).

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