A non-contact monitoring device for underwater pile foundation and detection method thereof

Abstract

The present invention discloses a non-contact monitoring device for underwater pile foundations, comprising a mounting ring, an adjustment mechanism mounted on the mounting ring, the adjustment mechanism comprising a round rod penetrating the mounting ring and rotatably connected thereto, a slide groove being provided on the round rod, a slider being slidably connected in the slide groove, a screw being fixedly connected to the slider, and a U-shaped plate being mounted on the inner wall of the mounting ring; the present invention also includes a detection method for a non-contact monitoring device for underwater pile foundations, comprising the following steps: S1, sleeve the mounting ring on the outside of the pile foundation, start an electric push rod so that the electric roller abuts against the outer wall of the pile foundation, and the operation of the electric roller can enable the mounting ring to move up and down on the pile foundation. The present invention detects underwater pile foundations through cameras and sonars, and can instantly understand the damage status, location, and degree of damage to the underwater pile foundations, so that maintenance and repairs can be carried out in advance to avoid major accidents. At the same time, it is convenient to disassemble the camera and sonar for inspection and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater pile foundation detection, and in particular to a non-contact monitoring device for underwater pile foundations and a detection method thereof. Background Art

[0002] With the development of the national economy, more and more huge projects have emerged, including many large-scale cross-sea bridges, water buildings, etc. These buildings are built on the water surface and supported by many underwater pile foundations, so the detection of underwater pile foundations is particularly important.

[0003] Underwater pile foundation inspections differ from those on land. Previously, specialized personnel had to dive underwater to inspect the foundations. However, with the development of the robotics industry, underwater robots are now being used to inspect pile foundations, eliminating the risk of accidents. However, due to the harsh underwater environment, existing underwater robots often produce suboptimal inspection results, failing to accurately detect surface cracks and exposed reinforcement. Summary of the Invention

[0004] The purpose of the present invention is to solve the above technical problems and to propose a non-contact monitoring device for underwater pile foundations and a detection method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A non-contact monitoring device for an underwater pile foundation comprises a mounting ring, an adjusting mechanism is installed on the mounting ring, the adjusting mechanism comprises a round rod that passes through the mounting ring and is rotatably connected thereto, a slide groove is provided on the round rod, a slider is slidably connected in the slide groove, a screw is fixedly connected to the slider, a U-shaped plate is installed on the inner wall of the mounting ring, the screw passes through the U-shaped plate and is threadedly connected thereto, a mounting plate is installed on the other end of the screw, a guide rod is fixedly connected to the mounting plate, the guide rod passes through the U-shaped plate and is slidably connected thereto, a connecting plate is installed on the mounting plate, a sonar and a camera arranged up and down are installed on the connecting plate, and the connecting plate is connected to the mounting plate through a connecting mechanism.

[0007] Preferably, the chute is a rectangular chute, the slider is a rectangular block, the rectangular block is cooperatively connected with the rectangular chute, and the diameter of the screw is smaller than the diameter of the inscribed circle of the chute.

[0008] Preferably, it also includes a driving mechanism for driving the four round rods to rotate synchronously, and the driving mechanism includes transmission gears installed on the four round rods, and the upper ends of the four transmission gears are commonly engaged with a first gear ring, and the upper end of the first gear ring is provided with an annular groove, and a second gear ring is installed in the annular groove, and four fixed blocks are fixedly connected to the mounting ring, and the four fixed blocks are rotatably connected to short rods, and a limiting gear is installed on the short rod, and the limiting gear is located in the annular groove and engaged with the second gear ring, and a motor is installed on one of the fixed blocks, and the output end of the motor is fixedly connected to the short rod.

[0009] Preferably, the four limiting gears are distributed in an annular array in the annular groove.

[0010] Preferably, the connecting mechanism includes an L-shaped groove provided on the mounting plate, an L-shaped block is installed on the connecting plate, the L-shaped block is installed in the L-shaped groove, a connecting groove is provided on the side of the mounting plate opposite to the connecting plate, a side groove is provided on the connecting plate opposite to the connecting groove, a moving block is slidably connected in the side groove, a connecting block is fixedly connected to the moving block, the end of the moving block opposite to the connecting block is fixedly connected to a first spring, the other end of the first spring is fixedly connected to the inner wall of the side groove, a pull rope is fixedly connected to the moving block, the pull rope passes through the connecting plate and is slidably connected to it, and a positioning mechanism for positioning the connecting block is installed on the mounting plate.

[0011] Preferably, the positioning mechanism includes a groove body arranged on one side of the mounting plate, a card rod is provided in the groove body, the card rod passes through the bottom of the mounting plate and is slidably connected thereto, the upper end of the card rod passes through the mounting plate and extends into the connecting groove, the card rod is slidingly arranged between the mounting plate, a card slot is provided on the connecting block, the card rod is slidably connected in the card slot, the bottom of the card rod is connected to a pull block, and a reset part is installed between the card rod and the groove body.

[0012] Preferably, the reset member includes a fixing ring fixed on the clamping rod, a second spring is fixedly connected to the fixing ring, and the other end of the second spring is fixedly connected to the inner wall of the groove body.

[0013] Preferably, four electric push rods are installed on the mounting ring, and electric wheels are installed on the output ends of the four electric push rods.

[0014] The present invention also includes a detection method for a non-contact monitoring device for an underwater pile foundation, comprising the following steps:

[0015] S1: Put the installation ring on the outside of the pile foundation, start the electric push rod to make the electric wheel abut against the outer wall of the pile foundation, and the electric wheel can move the installation ring up and down on the pile foundation;

[0016] S2, adjust the sonar and camera. Start the motor. The motor drives the short rod and the limit gear to rotate. The limit gear rotation drives the second gear ring to rotate, thereby realizing the rotation of the first gear ring. The rotation of the first gear ring drives the four transmission gears to rotate, thereby realizing the rotation of the round rod. The rotation of the round rod drives the slider and the screw. Under the guidance of the guide rod, the mounting plate is driven by the screw to move stably, thereby adjusting the position of the sonar and camera until the sonar and camera can fully cover the outer wall of the pile foundation. Then stop the motor.

[0017] S3: The electric wheel works to slowly move the mounting ring. The sonar uses the propagation and reflection characteristics of sound waves in water to process data through electroacoustic conversion and information processing to detect the shape of objects. By using cameras and sonar to detect underwater pile foundations, the damage status, location, and degree of damage of the underwater pile foundations can be instantly understood.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The motor drives the short rod and the limit gear to rotate. The rotation of the limit gear can drive the second gear ring to rotate, thereby realizing the rotation of the first gear ring. The rotation of the first gear ring drives the four transmission gears to rotate, thereby realizing the rotation of the round rod. The rotation of the round rod drives the slider and the screw to rotate. Under the guidance of the guide rod, the mounting plate is driven by the screw to move stably, thereby realizing the adjustment of the position of the sonar and camera until the sonar and camera can fully cover the outer wall of the pile foundation, and then stop the motor; through the above adjustment of the camera and sonar, it can be applied to the detection of pile foundations of various different diameters.

[0020] 2. The installation ring is slowly lowered and moved by a crane. The sonar uses the propagation and reflection characteristics of sound waves in water, performs data processing through electroacoustic conversion and information processing, and realizes the detection of the shape of the object. By using the camera and sonar to detect the underwater pile foundation, the damage condition of the underwater pile foundation, as well as the location and degree of damage, can be understood in real time, and maintenance and repairs can be carried out in advance to avoid major accidents.

[0021] 3. If the camera and sonar need to be disassembled and repaired, the staff will first pull the pull block to move the card rod so that the card rod is out of the slot. In this way, the connecting block is no longer restricted. Pull the pull rope to move the moving block and the connecting block until the connecting block is out of the connecting slot. Then move the connecting plate upward to make the L-shaped block out of the L-shaped slot. In this way, the connecting plate can be removed to realize the disassembly of the camera and sonar for their inspection.

[0022] In summary, the present invention detects underwater pile foundations through cameras and sonars, and can instantly understand the damage status, location and extent of the underwater pile foundations, so as to carry out maintenance and repairs in advance and avoid major accidents. At the same time, it is convenient to disassemble the cameras and sonars for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a non-contact monitoring device for underwater pile foundations proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of an adjustment mechanism in a non-contact monitoring device for underwater pile foundations proposed by the present invention;

[0025] Figure 3 This is a side view of the connecting plate of the non-contact monitoring device for underwater pile foundations proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of a connection mechanism in a non-contact monitoring device for underwater pile foundations proposed by the present invention;

[0027] Figure 5 This is a structural schematic diagram of point A in a non-contact monitoring device for underwater pile foundations proposed by the present invention.

[0028] In the figure: 1 mounting ring, 2 mounting plate, 3 sonar, 4 U-shaped plate, 5 screw, 6 round rod, 7 transmission gear, 8 first gear ring, 9 annular groove, 10 second gear ring, 11 fixed block, 12 short rod, 13 limit gear, 14 motor, 15 slide, 16 slider, 17 connecting plate, 18 camera, 19 L-shaped groove, 20 L-shaped block, 21 connecting groove, 22 side groove, 23 first spring, 24 moving block, 25 slot, 26 slot, 27 slot body, 28 fixing ring, 29 second spring, 30 pull block, 31 guide rod, 32 connecting block, 33 pull rope, 34 hinge, 3 lock, 36 electric push rod, 37 electric wheel. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1-5A non-contact monitoring device for an underwater pile foundation includes a mounting ring 1, on which an adjustment mechanism is installed. The adjustment mechanism includes a round rod 6 that passes through the mounting ring 1 and is rotatably connected thereto. A slide groove 15 is provided on the round rod 6, in which a slider 16 is slidably connected, and a screw 5 is fixedly connected to the slider 16. The slide groove 15 is a rectangular groove, and the slider 16 is a rectangular block. The rectangular block is matched with the rectangular groove and connected. The diameter of the screw 5 is smaller than the diameter of the inscribed circle of the slide groove 15, so that the slider 16 and the slide groove 15 can both slide and rotate synchronously.

[0031] Among them, it also includes a driving mechanism for driving the four round rods 6 to rotate synchronously, and the driving mechanism includes a transmission gear 7 installed on the four round rods 6, and the upper ends of the four transmission gears 7 are commonly meshed with a first gear ring 8, and the upper end of the first gear ring 8 is provided with an annular groove 9, and a second gear ring 10 is installed in the annular groove 9. Four fixed blocks 11 are fixedly connected to the mounting ring 1, and the four fixed blocks 11 are rotatably connected to short rods 12, and a limiting gear 13 is installed on the short rod 12. The limiting gear 13 is located in the annular groove 9 and meshed with the second gear ring 10. A motor 14 is installed on one of the fixed blocks 11, and the output end of the motor 14 is fixedly connected to the short rod 12. The four limiting gears 13 are distributed in a circular array in the annular groove 9.

[0032] Among them, the mounting ring 1, the first gear ring 8, and the second gear ring 10 are all composed of two symmetrical parts. Among them, one end of the mounting ring 1 and the first gear ring 8 is rotatably connected by a hinge 34, and the other end of the mounting ring 1 and the first gear ring 8 is connected by a lock buckle 35, so that the mounting ring 1 and the first gear ring 8 can be opened for easy installation outside the pile foundation; four electric push rods 36 are installed on the mounting ring 1, and the output ends of the four electric push rods 36 are all installed with electric wheels 37.

[0033] A U-shaped plate 4 is installed on the inner wall of the mounting ring 1, and a screw 5 passes through the U-shaped plate 4 and is threadedly connected to it. A mounting plate 2 is installed on the other end of the screw 5, and a guide rod 31 is fixedly connected to the mounting plate 2. The guide rod 31 passes through the U-shaped plate 4 and is slidably connected to it. A connecting plate 17 is installed on the mounting plate 2, and a sonar 3 and a camera 18 are installed on the connecting plate 17, which are arranged up and down.

[0034] The connecting plate 17 is connected to the mounting plate 2 through a connecting mechanism, which includes an L-shaped groove 19 on the mounting plate 2, an L-shaped block 20 installed on the connecting plate 17, and the L-shaped block 20 installed in the L-shaped groove 19. A connecting groove 21 is provided on the side of the mounting plate 2 opposite to the connecting plate 17, and a side groove 22 is provided on the connecting plate 17 opposite to the connecting groove 21. A moving block 24 is slidably connected in the side groove 22, and a connecting block 32 is fixedly connected to the moving block 24. The end of the moving block 24 opposite to the connecting block 32 is fixedly connected to the first spring 23, and the other end of the first spring 23 is fixedly connected to the inner wall of the side groove 22. A pull rope 33 is fixedly connected to the moving block 24, and the pull rope 33 passes through the connecting plate 17 and is slidably connected to it.

[0035] A positioning mechanism for positioning the connecting block 32 is installed on the mounting plate 2. The positioning mechanism includes a groove body 27 arranged on one side of the mounting plate 2. A clamping rod 26 is provided in the groove body 27. The clamping rod 26 passes through the bottom of the mounting plate 2 and is slidably connected thereto. The upper end of the clamping rod 26 passes through the mounting plate 2 and extends into the connecting groove 21. The clamping rod 26 is slidably arranged between the mounting plate 2. A clamping groove 25 is provided on the connecting block 32. The clamping rod 26 is slidably connected in the clamping groove 25. The bottom of the clamping rod 26 is connected to a pull block 30.

[0036] A reset member is installed between the clamping rod 26 and the groove body 27. The reset member includes a fixing ring 28 fixed on the clamping rod 26. A second spring 29 is fixedly connected to the fixing ring 28. The other end of the second spring 29 is fixedly connected to the inner wall of the groove body 27.

[0037] When the present invention is used, if it is in a deep water area, the staff can take a boat to the pile foundation, open the lock buckle 35 on the boat, put the installation ring 1 on the outside of the pile foundation, and then lock the lock buckle 35. At the same time, the electric push rod 36 is started to make the electric wheel 37 abut against the outer wall of the pile foundation. The operation of the electric wheel 37 can realize the up and down movement of the installation ring 1 on the pile foundation; the electric push rod 36 makes the electric wheel 37 abut against the outer wall of the pile foundation to realize the positioning of the installation ring 1, so that the installation ring 1, the sonar 3 and the camera 18 are not easily offset; secondly, the number of electric wheels 37 on the electric push rod 36 can be multiple, and it can be set according to actual conditions to ensure the stability of the entire device in the water flow;

[0038] Then adjust the sonar 3 and the camera 18, start the motor 14, and the motor 14 drives the short rod 12 and the limit gear 13 to rotate. The rotation of the limit gear 13 can drive the second gear ring 10 to rotate, thereby realizing the rotation of the first gear ring 8. The rotation of the first gear ring 8 drives the four transmission gears 7 to rotate, thereby realizing the rotation of the round rod 6. The rotation of the round rod 6 drives the slider 16 and the screw 5 to rotate. Under the guidance of the guide rod 31, the mounting plate 2 is driven by the screw 5 to move stably, thereby realizing the adjustment of the position of the sonar 3 and the camera 18 until the sonar 3 and the camera 18 can fully cover the outer wall of the pile foundation, and then stop the motor 14;

[0039] By adjusting the camera 18 and the sonar 3 as described above, it is possible to detect pile foundations of various diameters.

[0040] The detection work can be achieved by controlling the operation of the electric wheel 37. Specifically, the electric wheel 37 causes the mounting ring 1 to move slowly. The sonar 3 uses the propagation and reflection characteristics of sound waves in water to perform data processing through electroacoustic conversion and information processing to achieve object shape detection. By using the camera 18 and the sonar 3 to detect the underwater pile foundation, the damage of the underwater pile foundation, as well as the location and extent of the damage, can be immediately understood, and maintenance and repair can be carried out in advance to avoid major accidents.

[0041] If the camera 18 and the sonar 3 need to be disassembled and repaired, the staff first pulls the pull block 30 to move the card rod 26, so that the card rod 26 disengages from the card slot 25, so that the connecting block 32 is no longer restricted, and pulls the pull rope 33 to move the moving block 24 and the connecting block 32 until the connecting block 32 disengages from the connecting slot 21, and then moves the connecting plate 17 upward to disengage the L-shaped block 20 from the L-shaped slot 19. In this way, the connecting plate 17 can be removed, and the camera 18 and the sonar 3 can be disassembled for maintenance.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A non-contact monitoring device for underwater pile foundations, comprising a mounting ring (1), characterized in that: The mounting ring (1) is provided with an adjustment mechanism, the adjustment mechanism comprising a round rod (6) penetrating the mounting ring (1) and rotatably connected thereto, the round rod (6) being provided with a slide groove (15), a slider (16) being slidably connected in the slide groove (15), a screw rod (5) being fixedly connected to the slider (16), a U-shaped plate (4) being installed on the inner wall of the mounting ring (1), the screw rod (5) penetrating the U-shaped plate (4) and being threadedly connected thereto, a mounting plate (2) being installed on the other end of the screw rod (5), a guide rod (31) being fixedly connected to the mounting plate (2), the guide rod (31) penetrating the U-shaped plate (4) and being slidably connected thereto, A connecting plate (17) is installed on the mounting plate (2), and a sonar (3) and a camera (18) are installed on the connecting plate (17). The connecting plate (17) is connected to the mounting plate (2) through a connecting mechanism, and also includes a driving mechanism for driving the four round rods (6) to rotate synchronously. The driving mechanism includes a transmission gear (7) installed on the four round rods (6), and the upper ends of the four transmission gears (7) are engaged with a first gear ring (8) in common. The upper end of the first gear ring (8) is provided with an annular groove (9), and a second gear ring (10) is installed in the annular groove (9). Four fixing blocks (11) are fixedly connected to the mounting ring (1). Each of the fixed blocks (11) is rotatably connected to a short rod (12), and a limit gear (13) is installed on the short rod (12). The limit gear (13) is located in the annular groove (9) and meshes with the second gear ring (10). A motor (14) is installed on one of the fixed blocks (11), and the output end of the motor (14) is fixedly connected to the short rod (12). The connecting mechanism includes an L-shaped groove (19) provided on the mounting plate (2), an L-shaped block (20) is installed on the connecting plate (17), and the L-shaped block (20) is installed in the L-shaped groove (19). The mounting plate (2) is provided with a connecting groove on a side opposite to the connecting plate (17). (21), a side groove (22) facing the connecting groove (21) is provided on the connecting plate (17), a moving block (24) is slidably connected in the side groove (22), a connecting block (32) is fixedly connected to the moving block (24), a first spring (23) is fixedly connected to the end of the moving block (24) opposite to the connecting block (32), the other end of the first spring (23) is fixedly connected to the inner wall of the side groove (22), a pull rope (33) is fixedly connected to the moving block (24), the pull rope (33) passes through the connecting plate (17) and is slidably connected thereto, and a positioning mechanism for positioning the connecting block (32) is installed on the mounting plate (2).

2. The non-contact monitoring device for underwater pile foundation according to claim 1, characterized in that: The chute (15) is a rectangular chute, the slider (16) is a rectangular block, the rectangular block is connected to the rectangular chute in cooperation, and the diameter of the screw (5) is smaller than the diameter of the inscribed circle of the chute (15).

3. The non-contact monitoring device for underwater pile foundation according to claim 1, characterized in that: The four limiting gears (13) are distributed in an annular array in the annular groove (9).

4. The non-contact monitoring device for underwater pile foundation according to claim 1, characterized in that: The positioning mechanism includes a groove body (27) arranged on one side of the mounting plate (2), a clamping rod (26) is provided in the groove body (27), the clamping rod (26) passes through the bottom of the mounting plate (2) and is slidably connected thereto, the upper end of the clamping rod (26) passes through the mounting plate (2) and extends into the connecting groove (21), the clamping rod (26) is slidably arranged between the mounting plate (2), the connecting block (32) is provided with a clamping groove (25), the clamping rod (26) is slidably connected in the clamping groove (25), the bottom of the clamping rod (26) is connected to a pull block (30), and a reset member is installed between the clamping rod (26) and the groove body (27).

5. The non-contact monitoring device for underwater pile foundation according to claim 4, characterized in that: The reset member comprises a fixing ring (28) fixed on the clamping rod (26), a second spring (29) is fixedly connected to the fixing ring (28), and the other end of the second spring (29) is fixedly connected to the inner wall of the groove body (27).

6. The non-contact monitoring device for underwater pile foundation according to claim 5, characterized in that: Four electric push rods (36) are mounted on the mounting ring (1), and electric wheels (37) are mounted on the output ends of the four electric push rods (36).

7. A detection method for a non-contact monitoring device for underwater pile foundations, applied to the non-contact monitoring device for underwater pile foundations according to claim 6, characterized in that: The following steps are involved: S1, the installation ring (1) is placed on the outside of the pile foundation, and the electric push rod (36) is started to make the electric wheel (37) contact the outer wall of the pile foundation. The operation of the electric wheel (37) can realize the installation ring (1) to move up and down on the pile foundation; S2, adjust the sonar (3) and the camera (18), start the motor (14), the motor (14) drives the short rod (12) and the limit gear (13) to rotate, the limit gear (13) rotates to drive the second gear ring (10) to rotate, thereby realizing the rotation of the first gear ring (8), the first gear ring (8) rotates to drive the four transmission gears (7) to rotate, thereby realizing the rotation of the round rod (6), the round rod (6) rotates to drive the slider (16) and the screw (5), under the guidance of the guide rod (31), the mounting plate (2) is driven by the screw (5) to move stably, thereby realizing the adjustment of the position of the sonar (3) and the camera (18), until the sonar (3) and the camera (18) can fully cover the outer wall of the pile foundation, and then stop the motor (14); S3, the electric wheel (37) works to slowly move the mounting ring (1), and the sonar (3) utilizes the propagation and reflection characteristics of sound waves in water, performs data processing through electroacoustic conversion and information processing, and realizes the detection of the shape of the object; the underwater pile foundation is detected by the camera (18) and the sonar (3), and the damage of the underwater pile foundation, as well as the location and degree of damage, can be immediately understood.

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