Bridge underwater pile detection device

Abstract

The utility model discloses bridge underwater foundation pile detection device relates to bridge engineering detection technical field. The utility model discloses two half ring plates that can surround and shut in the outer peripheral side of foundation pile, a plurality of arc plates that are all and the surface of foundation pile abutment lap are slidably arranged on the half ring plate, the driving piece for driving a plurality of arc plates synchronous center sliding is provided on the half ring plate, the first half ring groove is structured on the half ring plate, and two first half ring grooves are surrounded into the first annular groove, and the sliding cylinder is slid in the first annular groove. The utility model discloses when carrying out the detection to the underwater part of foundation pile, effectively solved the current diver observation method low efficiency, strong subjectivity, weak sustained capacity, and the problem that the robot detection method is poor in stability in the torrent, and the sonar detection method cost is high, and the application effect is to be verified, improves underwater foundation pile detection's efficiency, precision, stability, objectivity and cost benefit, provides more reliable technical support for bridge structure safety evaluation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering testing technology, specifically to a bridge underwater foundation pile testing device. Background Technology

[0002] As a key load-bearing component of a bridge, the structural safety of the foundation pile directly affects the overall stability and service life of the bridge. For foundation piles located underwater, they are easily damaged to varying degrees due to long-term exposure to factors such as water flow erosion, environmental corrosion, and external forces. Therefore, underwater foundation pile inspection is of utmost importance.

[0003] Currently, underwater pile foundation testing mainly relies on the following technical methods:

[0004] Diver observation method: This method relies on visual inspection using handheld equipment by divers. It is inefficient, highly subjective, and limited by the diver's physical strength and underwater working time, resulting in insufficient continuous detection capability.

[0005] Robotic inspection method: Underwater robots are used to perform inspection tasks. However, in turbulent water environments, robots often lack sufficient power to overcome the impact of the water flow and cannot achieve stable hovering at the predetermined position, which affects the accuracy and effectiveness of the inspection.

[0006] Sonar detection method: There are few practical applications of this technology in the field of underwater pile foundation detection, its detection effect has not been fully verified, and the equipment purchase and maintenance costs are generally high.

[0007] In summary, existing mainstream testing methods have significant limitations in terms of efficiency, stability, adaptability (especially in fast-flow environments), cost-effectiveness, and reliability of test results. To overcome these shortcomings, this utility model proposes an underwater foundation pile testing device for bridges. Utility Model Content

[0008] The purpose of this utility model is to provide a bridge underwater foundation pile detection device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] An underwater bridge foundation pile testing device includes two semi-annular plates that can surround the outer periphery of the foundation pile. Multiple arc-shaped plates, each slidably overlapping and contacting the foundation pile surface, are mounted on the semi-annular plates. A driving component is provided on each semi-annular plate to drive the multiple arc-shaped plates to slide synchronously in the center. A first semi-annular groove is constructed on each semi-annular plate, and two first semi-annular grooves form a first annular groove. A sliding cylinder slides within the first annular groove. A multi-stage telescopic cylinder is mounted on the sliding cylinder, and a lifting plate is mounted on the movable end of the multi-stage telescopic cylinder. A testing component is mounted on the lifting plate.

[0011] Furthermore, the inner surface of the arc-shaped plate is constructed with multiple anti-slip grooves.

[0012] Furthermore, the driving component includes a second semi-annular groove formed on the semi-annular plate, a semi-conical toothed ring slidably disposed in the second semi-annular groove, a driving screw of the same amount as the arc plate and threadedly engaged is rotatably disposed on the semi-annular plate, and a bevel gear meshing with the semi-conical toothed ring is disposed on the driving screw, the two second semi-annular grooves form a second annular groove, and the two semi-conical toothed rings abut and overlap.

[0013] Furthermore, a semi-internal gear ring is provided in the first semi-annular groove, and the two semi-internal gear rings abut and overlap. A fixed motor is provided on the sliding cylinder, and a fixed gear that meshes with the semi-internal gear ring is provided on the output shaft of the fixed motor.

[0014] Furthermore, the detection components include an ultrasonic detector, an underwater camera, a lighting lamp, and a transparent protective cover, all mounted on the lifting plate. The transparent protective cover covers the ultrasonic detector, the underwater camera, and the lighting lamp.

[0015] Furthermore, the transparent protective cover is detachably mounted on the lifting plate and a sealing gasket is provided between the two.

[0016] Furthermore, a corrugated pipe is provided between the sliding cylinder and the lifting plate.

[0017] Furthermore, a scraper that slidably contacts and overlaps the surface of the foundation pile is provided on the lifting plate, and an adjusting screw with a thread passing through the scraper is rotatably provided on the lifting plate.

[0018] The beneficial effects of this utility model are as follows: When inspecting the underwater part of the foundation pile, this utility model effectively solves the problems of low efficiency, strong subjectivity, and weak continuous capability of the existing diver observation method, poor stability of the robot detection method in rapid currents, and high cost and unverified application effect of the sonar detection method. It improves the efficiency, accuracy, stability, objectivity and cost-effectiveness of underwater foundation pile inspection, and provides more reliable technical support for bridge structure safety assessment and maintenance, thus making it more practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of the present invention;

[0020] Figure 2 This is a three-dimensional sectional view of the present invention;

[0021] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a utility model Figure 2Enlarged view of point B in the middle;

[0023] Figure 5 This is a utility model Figure 2 Enlarged view of point C in the middle.

[0024] Reference numerals: 1. Semi-annular plate; 2. Arc-shaped plate; 3. First semi-annular groove; 4. Sliding cylinder; 5. Multi-stage telescopic cylinder; 6. Lifting plate; 7. Anti-slip groove; 8. Second semi-annular groove; 9. Semi-conical gear ring; 10. Drive screw; 11. Bevel gear; 12. Semi-internal gear ring; 13. Fixed motor; 14. Fixed gear; 15. Ultrasonic detector; 16. Underwater camera; 17. Lighting lamp; 18. Transparent protective cover; 19. Sealing gasket; 20. Bellows; 21. Scraper; 22. Adjusting screw. Detailed Implementation

[0025] 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.

[0026] like Figures 1-5 As shown, an embodiment of the present invention provides a bridge underwater foundation pile testing device, comprising two semi-annular plates 1 that can surround the outer periphery of the foundation pile. The semi-annular plates 1 are horizontally oriented and are connected and fixed between the two semi-annular plates 1 by multiple bolts and nuts. Multiple through holes are constructed on the semi-annular plates 1, through which the free ends of the bolts pass. Nuts are tightened onto the bolts and abut against and overlap with the semi-annular plates 1. Multiple arc-shaped plates 2 are slidably disposed on the semi-annular plates 1, each abutting and overlapping the surface of the foundation pile. The sliding direction of the arc-shaped plates 2 is perpendicular to the axis of the foundation pile. The multiple arc-shaped plates 2 are arranged in a circular array. A driving component is provided on the semi-annular plates 1 for driving the multiple arc-shaped plates 2 to slide synchronously and centrally. The synchronous centering sliding here refers to the simultaneous approach or departure of multiple arc-shaped plates 2 from the axis of the foundation pile. A first semi-annular groove 3 is constructed on the semi-annular plate 1. The first semi-annular groove 3 and the semi-annular plate 1 are coaxially distributed. The two first semi-annular grooves 3 form a first annular groove. A sliding cylinder 4 slides in the first annular groove. The sliding cylinder 4 can slide along the circumference. A multi-stage telescopic cylinder 5 is provided on the sliding cylinder 4. The multi-stage telescopic cylinder 5 is vertical and fixed on the sliding cylinder 4. A lifting plate 6 is provided on the movable end of the multi-stage telescopic cylinder 5. The lifting plate 6 is fixed on the movable end of the multi-stage telescopic cylinder 5. A detection component is provided on the lifting plate 6. The foundation pile is detected by the detection component.

[0027] In the initial state, the two semi-annular plates 1 are separated, the movable end of the multi-stage telescopic cylinder 5 retracts, and the lifting plate 6 and the arc-shaped plate 2 are both in the initial position. In use, the two semi-annular plates 1 are surrounded on the outer periphery of the pile above the water surface. The two semi-annular plates 1 are connected and fixed by multiple bolts and nuts. The two first semi-annular grooves 3 form a first annular groove. The driving component drives multiple arc-shaped plates 2 to slide synchronously in the center until all arc-shaped plates 2 are in contact with the surface of the pile to achieve positioning. This also accommodates piles of different diameters. Then, the movable end of the multi-stage telescopic cylinder 5 extends, driving the lifting plate 6 and the detection component to move downward together until the detection component is close to the bottom of the pile. Then, the sliding cylinder 4 is driven to slide in the first annular groove along the circumferential direction. The detection component performs circumferential detection on the foundation pile. When the sliding cylinder 4 slides one circle and returns to the initial position, the movable end of the multi-stage telescopic cylinder 5 is retracted a certain distance, driving the lifting plate 6 and the detection component to move upward together. Then, the sliding cylinder 4 is driven to slide in the first annular groove along the circumferential direction. This process is repeated to detect the underwater part of the foundation pile. After the detection is completed, the movable end of the multi-stage telescopic cylinder 5 is retracted, and the lifting plate 6 and the detection component return to the initial position. The driving component drives multiple arc plates 2 to slide synchronously in the center until they are all far away from the foundation pile. The two semi-annular plates 1 can then be disassembled and separated.

[0028] In summary, this invention effectively solves the problems of low efficiency, strong subjectivity, and weak sustainability of existing methods for underwater pile inspection, poor stability of robot inspection methods in rapid currents, and high cost and unverified application effects of sonar detection methods. It improves the efficiency, accuracy, stability, objectivity, and cost-effectiveness of underwater pile inspection, providing more reliable technical support for bridge structural safety assessment and maintenance, and is therefore more practical.

[0029] like Figure 1 As shown, a further technical solution of this utility model is disclosed: the inner surface of the arc plate 2 is constructed with a plurality of anti-slip grooves 7, and the plurality of anti-slip grooves 7 are evenly distributed.

[0030] Referring to the above, when the curved plate 2 and the foundation pile surface collide, the design of multiple anti-slip grooves 7 can increase the friction between the curved plate 2 and the foundation pile, making the positioning more stable and improving the stability of use.

[0031] like Figure 3As shown, the specific structure of the driving component of this utility model is disclosed. The driving component includes a second semi-annular groove 8 opened on a semi-annular plate 1. The second semi-annular groove 8 and the semi-annular plate 1 are coaxially distributed. A semi-conical toothed ring 9 is slidably arranged in the second semi-annular groove 8. The semi-conical toothed ring 9 and the semi-annular plate 1 are coaxially distributed. The semi-conical toothed ring 9 slides in the circumferential direction. A driving screw 10 with the same amount as the arc plate 2 and threadedly engaged is rotatably arranged on the semi-annular plate 1. The axis of the driving screw 10 is in the horizontal direction. A bevel gear 11 that meshes with the semi-conical toothed ring 9 is arranged on the driving screw 10. The bevel gear 11 is fixed on the driving screw 10 and the two are coaxially distributed. The two second semi-annular grooves 8 form a second annular groove. The two semi-conical toothed rings 9 abut and overlap.

[0032] Referring to the above, when the two semi-annular plates 1 are connected and fixed, the two second semi-annular grooves 8 form a second annular groove, and the two semi-conical tooth rings 9 abut and overlap to form a complete conical tooth ring. By driving one of the drive screws 10 to rotate forward, the bevel gear 11 on it will rotate together. The bevel tooth ring will rotate due to meshing, driving the other bevel gears 11 and drive screws 10 to rotate synchronously, so as to achieve synchronous rotation of multiple drive screws 10. Multiple arc plates 2 will slide synchronously in the center due to the thread action until the arc plate 2 and the foundation pile surface abut and overlap. Conversely, driving one of the drive screws 10 to rotate in reverse will drive the bevel gear 11 on it to rotate together. When rotated, the bevel gear ring rotates due to meshing, driving the other bevel gears 11 and drive screws 10 to rotate synchronously, so as to achieve synchronous rotation of multiple drive screws 10. Multiple arc plates 2 slide synchronously away from the foundation pile due to the thread action, so as to drive multiple arc plates 2 to slide synchronously in the center. In actual use, a drive motor can be installed on one of the half ring plates 1, so that the output shaft of the drive motor is connected to one of the drive screws 10. The drive motor drives the drive screw 10 to rotate, which is more convenient to use. When disassembling and separating the two half ring plates 1, the two half bevel gear rings 9 are respectively located in the two second half ring grooves 8.

[0033] like Figure 4 As shown, a further technical solution of the present invention is disclosed. A semi-internal gear ring 12 is provided in the first semi-annular groove 3. The semi-internal gear ring 12 and the semi-annular plate 1 are coaxially distributed. The two semi-internal gear rings 12 abut and overlap. A fixed motor 13 is provided on the sliding cylinder 4. The fixed motor 13 is fixed on the sliding cylinder 4 and its output shaft is in the vertical direction. A fixed gear 14 that meshes with the semi-internal gear ring 12 is provided on the output shaft of the fixed motor 13. The fixed gear 14 is fixed on the output shaft of the fixed motor 13 and the two are coaxially distributed.

[0034] Referring to the above, when the two semi-ring plates 1 are connected and fixed together, the two semi-internal gear rings 12 abut and overlap to form a complete internal gear ring. By making the fixed motor 13 work, the output shaft rotates, driving the fixed gear 14 to rotate together. Through the meshing action of the fixed gear 14 and the internal gear ring, the sliding cylinder 4 is driven to slide in the first annular groove along the circumferential direction.

[0035] like Figure 5 As shown, the specific structure of the detection component of this utility model is disclosed. The detection component includes an ultrasonic detector 15, an underwater camera 16, a lighting lamp 17, and a transparent protective cover 18, all of which are mounted on the lifting plate 6. The transparent protective cover 18 covers the ultrasonic detector 15, the underwater camera 16, and the lighting lamp 17. In this embodiment, the ultrasonic detector 15 is model WX-QSN2, and the underwater camera 16 is model Expotrek Action Cam 4K.

[0036] Referring to the above, during use, the light source is provided by the lighting lamp 17, the structure of the foundation pile is detected by the ultrasonic detector 15, the image of the foundation pile is captured by the underwater camera 16, and the ultrasonic detector 15, the underwater camera 16 and the lighting lamp 17 are protected by the transparent protective cover 18, which is waterproof and avoids impact damage.

[0037] like Figure 5 As shown, a further technical solution of the present utility model is disclosed. The transparent protective cover 18 is detachably mounted on the lifting plate 6 and a sealing gasket 19 is provided between the two. The transparent protective cover 18 is detachably mounted on the lifting plate 6 by multiple bolts. The transparent protective cover 18 has a through hole and the lifting plate 6 has a threaded hole. The free end of the bolt passes through the through hole and is threadedly engaged with the threaded hole.

[0038] Referring to the above, in the initial state, the transparent protective cover 18 is in the installed state. The sealing gasket 19 can improve the sealing and waterproof performance. After use, the transparent protective cover 18 can be disassembled to facilitate the maintenance of the ultrasonic detector 15, the underwater camera 16 and the lighting lamp 17. In actual use, the ultrasonic detector 15, the underwater camera 16 and the lighting lamp 17 are all detachably mounted on the lifting plate 6 by bolts.

[0039] like Figure 5 As shown, a further technical solution of this utility model is disclosed: a corrugated pipe 20 is provided between the sliding cylinder 4 and the lifting plate 6, and the two ends of the corrugated pipe 20 are fixedly connected to the sliding cylinder 4 and the lifting plate 6 respectively.

[0040] Referring to the above, in the initial state, the length of the bellows 20 is relatively short. By threading a wire through the bellows 20, the wire can be connected to the ultrasonic detector 15, the underwater camera 16, and the lighting lamp 17 to achieve power supply or data transmission. When the lifting plate 6 moves downward, the length of the bellows 20 increases, and the wire is gradually loosened to maintain continuous power supply or data transmission.

[0041] like Figure 5 As shown, a further technical solution of this utility model is disclosed. A scraper 21 that slidably contacts and overlaps the surface of the foundation pile is provided on the lifting plate 6. The scraper 21 slides in the horizontal direction. An adjusting screw 22 with a thread passing through the scraper 21 is rotatably provided on the lifting plate 6. The axis of the adjusting screw 22 is in the horizontal direction.

[0042] Referring to the above, in the initial state, the scraper 21 is in the initial position. When in use, the adjusting screw 22 is manually driven to rotate forward. The scraper 21 slides to the limit position due to the thread action until the scraper 21 and the pile surface come into contact. When the lifting plate 6 moves, the scraper 21 scrapes away the debris on the pile surface to avoid the debris affecting the test results.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for detecting the underwater foundation pile of a bridge, characterized in that, It includes two semi-ring plates (1) that can surround the outer periphery of the foundation pile. Multiple arc-shaped plates (2) that are slidably arranged on the semi-ring plates (1) and are in contact with the surface of the foundation pile are provided. A driving component is provided on the semi-ring plates (1) to drive the multiple arc-shaped plates (2) to slide synchronously in the center. A first semi-ring groove (3) is constructed on the semi-ring plates (1). The two first semi-ring grooves (3) surround a first annular groove. A sliding cylinder (4) slides in the first annular groove. A multi-stage telescopic cylinder (5) is provided on the sliding cylinder (4). A lifting plate (6) is provided on the movable end of the multi-stage telescopic cylinder (5). A detection component is provided on the lifting plate (6).

2. The underwater bridge pile testing device according to claim 1, characterized in that, The inner surface of the arc plate (2) is constructed with multiple anti-slip grooves (7).

3. The underwater bridge pile testing device according to claim 1, characterized in that, The driving component includes a second semi-annular groove (8) opened on the semi-annular plate (1), a semi-conical toothed ring (9) is slidably arranged in the second semi-annular groove (8), a driving screw (10) of the same amount as the arc plate (2) and threadedly engaged is rotatably arranged on the semi-annular plate (1), and a bevel gear (11) that meshes with the semi-conical toothed ring (9) is arranged on the driving screw (10). The two second semi-annular grooves (8) form a second annular groove, and the two semi-conical toothed rings (9) abut and overlap.

4. The underwater bridge pile testing device according to claim 1, characterized in that, A semi-internal gear ring (12) is provided in the first semi-annular groove (3), and the two semi-internal gear rings (12) abut and overlap. A fixed motor (13) is provided on the sliding cylinder (4), and a fixed gear (14) that meshes with the semi-internal gear ring (12) is provided on the output shaft of the fixed motor (13).

5. The underwater bridge pile testing device according to claim 1, characterized in that, The detection components include an ultrasonic detector (15), an underwater camera (16), a lighting lamp (17), and a transparent protective cover (18), all mounted on the lifting plate (6). The transparent protective cover (18) covers the ultrasonic detector (15), the underwater camera (16), and the lighting lamp (17) on the outside.

6. The underwater bridge pile testing device according to claim 5, characterized in that, The transparent protective cover (18) is detachably mounted on the lifting plate (6) and a sealing gasket (19) is provided between the two.

7. The underwater bridge pile testing device according to claim 5, characterized in that, A bellows (20) is provided between the sliding cylinder (4) and the lifting plate (6).

8. The underwater bridge pile testing device according to claim 1, characterized in that, The lifting plate (6) is slidably provided with a scraper (21) that abuts and overlaps with the surface of the foundation pile, and the lifting plate (6) is rotatably provided with an adjusting screw (22) that is threaded through the scraper (21).

Images