A diaphragm wall sediment thickness high-precision monitoring device and a monitoring method

Abstract

This invention belongs to the field of engineering measurement technology, specifically a high-precision monitoring device and method for diaphragm wall sediment thickness. It includes a detector body with a suspension and lowering mechanism on its upper surface. The suspension and lowering mechanism includes a mounting base. The device supports the detector body on both sides within the trench, ensuring stable lowering. This high-precision monitoring device and method for diaphragm wall sediment thickness, through the suspension and lowering mechanism, enables precise positioning and lowering of trenches of varying widths. This not only improves the stability of the detector body during lowering but also reduces the labor required for manual lowering and facilitates storage and portability.

Description

Technical Field

[0001] This invention relates to the field of engineering measurement technology, and in particular to a high-precision monitoring device and method for monitoring the thickness of sediment in diaphragm walls. Background Technology

[0002] Diaphragm walls, also known as underground continuous walls, are foundation engineering projects where a trenching machine excavates a long, narrow trench along the perimeter of the deep excavation project, using slurry wall support. After cleaning the trench, a reinforcing cage is placed inside, and underwater concrete is poured using a tremie pipe method to form a unit trench segment. This process is repeated segment by segment to build a continuous reinforced concrete wall underground, serving as a water-cutting, seepage-proof, load-bearing, and water-retaining structure. After the trench is completed, sediment may be present inside, affecting the construction quality of the diaphragm wall. Design and construction specifications strictly stipulate that the thickness of sediment at the trench end must not exceed 50mm, and some projects even require zero sediment. Therefore, after the trench is completed, the thickness of sediment inside the trench needs to be monitored.

[0003] Most existing sediment thickness monitoring instruments are manually suspended by a wire, which is then extended to lower the instrument to the bottom of the tank. Because the instrument is manually lowered by alternating pulling and releasing the wire with both hands, it is easy for the instrument to sway during the lowering process. This not only affects the stability of the instrument during lowering but also requires a lot of labor. Furthermore, due to the buoyancy of the water, the instrument is prone to tilting or falling over after entering the tank, resulting in inaccurate sediment monitoring results. Summary of the Invention

[0004] The existing methods for manually suspending and lowering sediment thickness detection instruments via wires suffer from poor stability, require significant labor, and are susceptible to tilting and tipping over due to water buoyancy, leading to inaccurate monitoring results. To address these issues, this invention proposes a high-precision sediment thickness monitoring device and method for diaphragm walls.

[0005] The present invention proposes a high-precision monitoring device for sediment thickness of diaphragm wall, including a detector body. The upper surface of the detector body is provided with a suspension and lowering mechanism, which includes a mounting base. The detector body is supported on both sides of the tank by the suspension and lowering mechanism to achieve stable lowering of the detector body.

[0006] An angle adjustment mechanism is provided on the outer surface of the detector body. The angle adjustment mechanism includes a drive box and is located below the suspension and lowering mechanism. Rotation adjustment is achieved through the angle adjustment mechanism.

[0007] The outer surface of the detector body is provided with a balance adjustment mechanism, which includes a propeller. The balance adjustment mechanism is located on one side of the angle adjustment mechanism, and the balance adjustment mechanism is used to adjust the balance of the tilted detector body.

[0008] Preferably, a protective shell is fixedly connected to the upper surface of the detector body, and a clamp is fixedly sleeved on the outer surface of the detector body. Multiple drive boxes are arranged in a circular array with the outer surface axis of the clamp as the center of symmetry. One side surface of the drive box is fixedly connected to the outer surface of the clamp. An extended telescopic probe is provided on the lower surface of the detector body. A through groove is opened on the upper surface of the mounting base. A guide wheel is hinged to the inner wall of the through groove by a pin. A symmetrically distributed support block is hinged to the inner wall of the mounting base by a pin. One side surface of one of the support blocks has symmetrically distributed positioning holes, and the interior of the other support block has a movable cavity.

[0009] Preferably, the inner top wall of the movable cavity is provided with a first limiting hole and a second limiting hole, the inner bottom wall of the movable cavity is provided with a stroke groove, the inner wall of the movable cavity is slidably sleeved with a limiting block, one side surface of the limiting block is fixedly connected with a symmetrically distributed positioning rod, one end of the positioning rod penetrates and extends to one side surface of another support block, one end of the positioning rod is movably inserted into the inner wall of the positioning hole, the inside of the limiting block is provided with an installation cavity, and the inner wall of the installation cavity is movably sleeved with a limiting ring.

[0010] Preferably, a limiting rod is fixedly sleeved on the inner wall of the limiting ring. One end of the limiting rod passes through and extends to the upper surface of the limiting block. One end of the limiting rod is movably inserted into the inner wall of the first limiting hole. The other end of the limiting rod passes through and runs through a groove, extending to the lower surface of another support block. A pull ring is fixedly connected to the other end of the limiting rod. A return spring is movably sleeved on the outer surface of the limiting rod. One end of the return spring is fixedly connected to the lower surface of the limiting ring.

[0011] Preferably, the other end of the reset spring is fixedly connected to the inner bottom wall of the mounting cavity, a receiving groove is formed on the other side surface of the support block, a guide block is movably sleeved on the inner wall of the receiving groove, a lead screw is fixedly connected to one side surface of the guide block, one end of the lead screw passes through and extends to the other side surface of the support block, a support plate is fixedly connected to one end of the lead screw, the cross-section of the support plate is L-shaped, an annular groove is formed on the other side surface of the support block, and a limiting slider distributed in an annular array is slidably sleeved on the inner wall of the annular groove.

[0012] Preferably, one end of the limiting slider is fixedly connected to a threaded ring, the inner wall of the threaded ring is threadedly sleeved with the outer surface of the lead screw, and the outer surface of the threaded ring is fixedly connected to a handle arranged in a ring array. The other side surface of the drive box is provided with a mounting hole, the inner wall of the mounting hole is fixedly sleeved with a positioning sleeve, the inner wall of the positioning sleeve is provided with a positioning groove, and the inner wall of the positioning groove is slidably connected to a guide slider arranged in a ring array. The inner surfaces of the multiple guide sliders are all fixedly connected with adjusting tubes, and the outer surface of the adjusting tubes is rotatably sleeved with the inner wall of the positioning sleeve.

[0013] Preferably, one end of the adjusting tube is fixedly connected to an adjusting block, and the outer surface of the other end of the adjusting tube is fixedly sleeved with a turbine. A first servo motor is fixedly installed on the front inner wall of the drive box. The output shaft of the first servo motor is fixedly installed with a worm gear through a coupling. The outer surface of the worm gear meshes with the tooth surface of the turbine. The balance adjusting mechanism also includes a transmission rod. The outer surface of the transmission rod is installed with the inner wall of the adjusting tube through a bearing. One end of the transmission rod passes through and extends into the interior of the drive box. A first bevel gear is fixedly sleeved on one end of the transmission rod.

[0014] Preferably, the other end of the transmission rod passes through and extends into the interior of the adjusting block, and a second bevel gear is fixedly sleeved on the outer surface of the other end of the transmission rod. A second servo motor is fixedly installed on the inner bottom wall of the drive box, and a rotating shaft is fixedly installed on the output shaft of the second servo motor through a coupling. A third bevel gear is fixedly sleeved on the outer surface of one end of the rotating shaft, and the tooth surface of the third bevel gear meshes with the tooth surface of the first bevel gear. A rotating rod is installed on the upper surface of the adjusting block through a sealed bearing.

[0015] Preferably, a fourth bevel gear is fixedly sleeved on the outer surface of one end of the rotating rod, and the tooth surface of the fourth bevel gear meshes with the tooth surface of the second bevel gear. The other end of the rotating rod is fixedly connected to the lower surface of the propeller. Fixed rods that are symmetrically distributed are fixedly connected to both sides of the adjusting block, and a protective ring is fixedly connected to one end of each of the two fixed rods.

[0016] Preferably, a monitoring method for a high-precision monitoring device for sediment thickness in diaphragm walls is provided. The specific monitoring method is as follows: Step 1, by rotating the threaded ring clockwise with the handle, the rotation of the threaded ring causes the lead screw to extend outward through the cooperation of the guide block, thereby driving the support plate to move. After moving to a suitable length, it is placed at both ends of the diaphragm wall trench. The threaded ring is rotated again to make the support plate abut against the inner walls of both sides of the diaphragm wall trench. At this time, one end of the wire on the pre-prepared winding frame is passed around the inner wall of the guide wheel and installed with the detector body. After installation, the wire is extended by rotating the winding frame. The extension of the wire is stably lowered by the positioning and conveying of the guide wheel.

[0017] Step two: When the detector body tilts during lowering, the angle balancer inside the protective shell determines the tilt direction and controls the corresponding second servo motor to work according to the tilt direction. The second servo motor drives the third bevel gear to rotate through the rotating shaft. The rotation of the third bevel gear drives the transmission rod to rotate through the meshing first bevel gear. The rotation of the transmission rod drives the second bevel gear to rotate. The rotation of the second bevel gear drives the rotating rod to rotate through the meshing fourth bevel gear. The rotation of the rotating rod drives the propeller to rotate. The rotation of the propeller, in conjunction with the water, restores the balance of the detector body.

[0018] Step 3: When the detector body is lowered and tilts between the two drive boxes, the two adjacent propellers rotate, and the first servo motor drives the worm gear to rotate. The rotation of the worm gear drives the regulating tube to rotate through the meshing turbine. The rotation of the regulating tube is stably adjusted by the cooperation of the positioning slide and the guide slider. At the same time, it drives the regulating block to rotate. The rotation of the regulating block drives the propeller to adjust the angle through the rotating rod, thereby realizing the corresponding water flow thrust to restore the balance of the detector body. When the detector body is lowered to the bottom of the tank, the extended telescopic probe is extended to monitor the sediment and the monitoring information is fed back in real time through the wire.

[0019] Step four: After monitoring is complete, rotate the threaded ring counterclockwise by the handle to retract the lead screw into the storage slot. The retraction of the lead screw causes the support plate to detach from the sides of the groove connecting the wall and the ground, thus completing the disassembly. At this time, pull the pull ring downwards to move the limiting rod. The limiting rod retracts through the limiting ring and the return spring. At the same time, one end of the limiting rod disengages from the first limiting hole. Pull the pull ring horizontally again to move the limiting rod and the limiting block within the moving cavity, thereby moving the positioning rod. One end of the positioning rod disengages from the positioning hole to cancel the limiting. After moving a certain distance, release the pull ring. The return spring, through the limiting ring, moves the limiting rod back to its original position, causing one end of the limiting rod to insert into the second limiting hole for limiting and fixing. At this time, the two support blocks are flipped and folded by the pin, making them easy to store and carry.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. By setting up a suspension and lowering mechanism, the device can be positioned and lowered into trenches of different widths. This not only improves the stability of the detector body during lowering but also reduces the labor required for manual lowering and facilitates storage and carrying.

[0022] 2. By setting up a balance adjustment mechanism, the propulsive force of the water flow when the propeller rotates can correct the tilt of the detector body, allowing it to fall smoothly to the bottom of the tank for monitoring, thereby improving the accuracy of the monitoring results.

[0023] 3. By setting an angle adjustment mechanism, the water flow propulsion angle during propeller correction can be adjusted, thereby achieving faster correction of the detector body and improving monitoring efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0025] Figure 2 A three-dimensional view of the detector body structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0026] Figure 3 A three-dimensional view of the support block structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0027] Figure 4 A three-dimensional view of a limiting block structure for a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0028] Figure 5 A three-dimensional diagram of a threaded ring structure for a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0029] Figure 6 A three-dimensional view of the drive box structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0030] Figure 7 A three-dimensional view of the adjusting block structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0031] Figure 8 A three-dimensional diagram of the regulating pipe structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall;

[0032] Figure 9 This is a three-dimensional diagram of the positioning sleeve structure of a high-precision monitoring device and method for monitoring the thickness of sediment in a diaphragm wall.

[0033] In the diagram: 1. Detector body; 2. Mounting base; 21. Guide wheel; 22. Support block; 23. Positioning hole; 24. Moving cavity; 25. Stroke groove; 26. Limiting block; 27. Positioning rod; 28. Limiting ring; 29. ​​Limiting rod; 210. Pull ring; 211. Return spring; 212. Storage groove; 213. Guide block; 214. Lead screw; 215. Support plate; 216. Limiting slider; 217. Threaded ring; 3. Drive box; 31. Fixed... 32. Positioning sleeve; 33. Positioning slide; 34. Guide slider; 35. Adjusting tube; 36. Adjusting block; 37. Turbine; 38. First servo motor; 49. Worm gear; 40. Propeller; 41. Transmission rod; 42. First bevel gear; 43. Second bevel gear; 44. Second servo motor; 45. Third bevel gear; 46. Rotating rod; 47. Fourth bevel gear; 48. Fixed rod; 49. Protective ring; 5. Protective shell; 6. Clamp; 7. Extended telescopic probe. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1

[0036] Reference Figures 1-9 A high-precision monitoring device for sediment thickness of diaphragm wall includes a detector body 1. The upper surface of the detector body 1 is provided with a suspension and lowering mechanism. The suspension and lowering mechanism includes a mounting base 2. The detector body 1 is supported on both sides of the tank by the suspension and lowering mechanism to achieve stable lowering of the detector body 1.

[0037] An angle adjustment mechanism is provided on the outer surface of the detector body 1. The angle adjustment mechanism includes a drive box 3. The angle adjustment mechanism is located below the suspension and lowering mechanism. Rotation adjustment is achieved through the angle adjustment mechanism.

[0038] The outer surface of the detector body 1 is provided with a balance adjustment mechanism, which includes a propeller 4. The balance adjustment mechanism is located on one side of the angle adjustment mechanism, and the balance adjustment mechanism is used to adjust the balance of the tilted detector body 1.

[0039] Furthermore, in order to achieve balance monitoring, a protective shell 5 is fixedly connected to the upper surface of the detector body 1, and an angle balancer is installed inside the protective shell 5. A clamp 6 is fixedly sleeved on the outer surface of the detector body 1. Multiple drive boxes 3 are arranged in a ring array with the outer surface axis of the clamp 6 as the center of symmetry. One side surface of the drive box 3 is fixedly connected to the outer surface of the clamp 6. An extended telescopic probe 7 is provided on the lower surface of the detector body 1. A through groove is opened on the upper surface of the mounting base 2. A guide wheel 21 is hinged to the inner wall of the through groove by a pin. The guide wheel 21 plays the role of rolling support for the lowering of the wire. A symmetrically distributed support block 22 is hinged to the inner wall of the mounting base 2 by a pin. One side surface of one support block 22 is provided with a symmetrically distributed positioning hole 23, and the interior of the other support block 22 is provided with a movable cavity 24.

[0040] Furthermore, in order to achieve limiting support, the inner top wall of the movable cavity 24 is provided with a first limiting hole and a second limiting hole, and the inner bottom wall of the movable cavity 24 is provided with a stroke groove 25. The inner wall of the movable cavity 24 is slidably sleeved with a limiting block 26. A positioning rod 27 is fixedly connected to one side surface of the limiting block 26. One end of the positioning rod 27 passes through and extends to one side surface of another support block 22. One end of the positioning rod 27 is movably inserted into the inner wall of the positioning hole 23. The cooperation between the positioning rod 27 and the positioning hole 23 plays the role of limiting and fixing the two support blocks 22. The inside of the limiting block 26 is provided with an installation cavity, and the inner wall of the installation cavity is movably sleeved with a limiting ring 28.

[0041] Furthermore, in order to achieve elastic reset movement, a limit rod 29 is fixedly sleeved on the inner wall of the limit ring 28. The limit ring 28 serves to limit the vertical movement of the limit rod 29. One end of the limit rod 29 passes through and extends to the upper surface of the limit block 26. One end of the limit rod 29 is movably inserted into the inner wall of the first limit hole. The other end of the limit rod 29 passes through and extends to the lower surface of another support block 22 via the stroke groove 25. The stroke groove 25 serves to limit the lateral movement of the limit rod 29. A pull ring 210 is fixedly connected to the other end of the limit rod 29. A reset spring 211 is movably sleeved on the outer surface of the limit rod 29. One end of the reset spring 211 is fixedly connected to the lower surface of the limit ring 28. The reset function of the reset spring 211 drives the limit rod 29 to reset movement through the limit ring 28.

[0042] Furthermore, to facilitate storage and carrying, the other end of the return spring 211 is fixedly connected to the inner bottom wall of the mounting cavity. A storage groove 212 is provided on the other side surface of the support block 22. A guide block 213 is movably sleeved on the inner wall of the storage groove 212. A lead screw 214 is fixedly connected to one side surface of the guide block 213. The storage groove 212 serves to store the lead screw 214 for easy carrying. One end of the lead screw 214 passes through and extends to the other side surface of the support block 22. A support plate 215 is fixedly connected to one end of the lead screw 214. The support plate 215 extends out through the cooperation of the lead screw 214 and serves to limit and support the inner side of the groove. The cross-section of the support plate 215 is L-shaped. An annular groove is provided on the other side surface of the support block 22. A limit slider 216 distributed in an annular array is slidably sleeved on the inner wall of the annular groove.

[0043] Furthermore, to facilitate telescopic support, a threaded ring 217 is fixedly connected to one end of the limiting slider 216. The limiting slider 216 cooperates with the threaded ring 217 to perform positioning rotation. The inner wall of the threaded ring 217 is threadedly sleeved with the outer surface of the lead screw 214. A handle arranged in a ring array is fixedly connected to the outer surface of the threaded ring 217. The handle facilitates the rotation of the threaded ring 217, which in turn drives the lead screw 214 to perform telescopic movement. An installation hole is provided on the other side surface of the drive box 3. A positioning sleeve 31 is fixedly sleeved on the inner wall of the installation hole. A positioning groove 32 is provided on the inner wall of the positioning sleeve 31. A guide slider 33 arranged in a ring array is slidably connected to the inner wall of the positioning groove 32. An adjusting tube 34 is fixedly connected to the inner surface of each of the multiple guide sliders 33. The positioning sleeve 31, through the cooperation of the positioning groove 32 and the guide slider 33, enables the adjusting tube 34 to be positioned and rotated for adjustment. The outer surface of the adjusting tube 34 is rotatably sleeved with the inner wall of the positioning sleeve 31.

[0044] By setting up a suspension and lowering mechanism, the device can be positioned and lowered into trenches of different widths. This not only improves the stability of the detector body 1 during lowering, but also reduces the labor required for manual lowering by staff, and facilitates storage and carrying.

[0045] Furthermore, to achieve angle adjustment, one end of the adjusting tube 34 is fixedly connected to an adjusting block 35. Rotation of the adjusting tube 34 drives the adjusting block 35 to rotate and adjust. A worm gear 36 is fixedly sleeved on the outer surface of the other end of the adjusting tube 34. A first servo motor 37 is fixedly installed on the front inner wall of the drive box 3. The output shaft of the first servo motor 37 is fixedly installed with a worm gear 38 via a coupling. The first servo motor 37 drives the worm gear 38 to rotate. The rotation of the worm gear 38, through the meshing worm gear 36, drives the adjusting tube 34 to rotate and adjust. The characteristics of the worm gear 38 and the turbine 36 prevent the turbine 36 and the regulating tube 34 from rotating on their own after the first servo motor 37 stops. The outer surface of the worm gear 38 meshes with the tooth surface of the turbine 36. The balance adjustment mechanism also includes a transmission rod 41. The outer surface of the transmission rod 41 is installed on the inner wall of the regulating tube 34 through a bearing. The transmission rod 41 is positioned and rotated within the regulating tube 34 through the bearing. One end of the transmission rod 41 passes through and extends into the interior of the drive box 3. The first bevel gear 42 is fixedly sleeved on one end of the transmission rod 41.

[0046] By setting an angle adjustment mechanism, the water flow propulsion angle of the propeller 4 can be adjusted during correction, thereby achieving faster correction of the detector body 1 and improving monitoring efficiency.

[0047] Furthermore, to achieve gear transmission, the other end of the transmission rod 41 passes through and extends into the interior of the adjusting block 35. A second bevel gear 43 is fixedly sleeved on the outer surface of the other end of the transmission rod 41. A second servo motor 44 is fixedly installed on the inner bottom wall of the drive box 3. A rotating shaft is fixedly installed on the output shaft of the second servo motor 44 through a coupling. A third bevel gear 45 is fixedly sleeved on the outer surface of one end of the rotating shaft. The tooth surface of the third bevel gear 45 meshes with the tooth surface of the first bevel gear 42. A rotating rod 46 is installed on the upper surface of the adjusting block 35 through a sealed bearing. The second servo motor 44 drives the third bevel gear 45 to rotate through the rotating shaft. The third bevel gear 45 drives the transmission rod 41 to rotate through the meshing first bevel gear 42, thereby driving the second bevel gear 43 at the other end to rotate.

[0048] Furthermore, to achieve automated balance adjustment, a fourth bevel gear 47 is fixedly sleeved on the outer surface of one end of the rotating rod 46. The tooth surface of the fourth bevel gear 47 meshes with the tooth surface of the second bevel gear 43. The other end of the rotating rod 46 is fixedly connected to the lower surface of the propeller 4. The rotation of the second bevel gear 43 drives the rotating rod 46 to rotate through the meshing fourth bevel gear 47, thereby driving the propeller 4 to rotate. The rotation of the propeller 4 generates the propulsion force of the water flow for balance adjustment, so as to achieve stable descent. Fixed rods 48 are fixedly connected to both sides of the adjusting block 35 in a symmetrically distributed manner. A protective ring 49 is fixedly connected to one end of each of the two fixed rods 48. The fixed rods 48 support and fix the protective rings 49, and the protective rings 49 protect the outside of the propeller 4 to prevent collisions.

[0049] By setting up a balance adjustment mechanism, the propulsive force of the water flow when the propeller 4 rotates can correct the tilt of the detector body 1, so that it can fall smoothly into the bottom of the tank for monitoring, thereby improving the accuracy of the monitoring results.

[0050] Example 2

[0051] Reference Figures 1-9 A monitoring method for a high-precision monitoring device for sediment thickness in diaphragm walls, the specific monitoring method is as follows: Step 1, rotate the threaded ring 217 clockwise by the handle. The rotation of the threaded ring 217 causes the lead screw 214 to extend outward through the cooperation of the guide block 213, thereby driving the support plate 215 to move. After moving to a suitable length, it is placed at both ends of the diaphragm wall trench. Rotate the threaded ring 217 again to make the support plate 215 abut against the inner walls on both sides of the diaphragm wall trench. At this time, one end of the wire on the pre-prepared winding frame is passed around the inner wall of the guide wheel 21 and installed with the detector body 1. After installation, the wire is extended by rotating the winding frame. The extension of the wire is stably lowered by the positioning and conveying of the guide wheel 21.

[0052] Step two: When the detector body 1 tilts during lowering, the angle balancer inside the protective shell 5 determines the tilt direction and controls the corresponding second servo motor 44 to work according to the tilt direction. The second servo motor 44 drives the third bevel gear 45 to rotate through the rotating shaft. The rotation of the third bevel gear 45 drives the transmission rod 41 to rotate through the meshing first bevel gear 42. The rotation of the transmission rod 41 drives the second bevel gear 43 to rotate. The rotation of the second bevel gear 43 drives the rotating rod 46 to rotate through the meshing fourth bevel gear 47. The rotation of the rotating rod 46 drives the propeller 4 to rotate. The rotation of the propeller 4 restores the balance of the detector body 1 through the cooperation of the water body.

[0053] Step 3: When the detector body 1 is lowered and tilts between the two drive boxes 3, the two adjacent propellers 4 rotate. At the same time, the first servo motor 37 drives the worm gear 38 to rotate. The rotation of the worm gear 38 drives the regulating tube 34 to rotate through the meshing turbine 36. The rotation of the regulating tube 34 is stably adjusted by the cooperation of the positioning slide groove 32 and the guide slider 33. At the same time, it drives the regulating block 35 to rotate. The rotation of the regulating block 35 drives the propeller 4 to adjust the angle through the rotating rod 46, thereby realizing the corresponding water flow thrust to restore the balance of the detector body 1. When the detector body 1 is lowered to the bottom of the tank, the extended telescopic probe 7 is extended to monitor the sediment and the monitoring information is fed back in real time through the wire.

[0054] Step four: After monitoring is complete, rotate the threaded ring 217 counterclockwise to retract the lead screw 214 into the receiving groove 212. The retraction of the lead screw 214 causes the support plate 215 to detach from both sides of the wall-connected groove, thus completing the disassembly. At this time, pull the pull ring 210 downward to move the limiting rod 29. The limiting rod 29 retracts through the limiting ring 28, causing the return spring 211 to retract. At the same time, one end of the limiting rod 29 disengages from the first limiting hole. Pull the pull ring 210 horizontally again to move the limiting rod... 29 drives the limiting block 26 to move within the moving cavity 24, thereby driving the positioning rod 27 to move, causing one end of the positioning rod 27 to disengage from the positioning hole 23 and cancel the limiting. After moving a certain distance, the pull ring 210 is released, and the limiting rod 29 is driven to reset and move through the limiting ring 28 by the reset action of the reset spring 211, so that one end of the limiting rod 29 is inserted into the second limiting hole for limiting and fixing. At this time, the two support blocks 22 are flipped and folded by the cooperation of the pin, so as to facilitate storage and carrying.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision monitoring device for sediment thickness in diaphragm walls, comprising a detector body (1), characterized in that: The upper surface of the detector body (1) is provided with a suspension and lowering mechanism, which includes a mounting base (2). The suspension and lowering mechanism supports the detector body (1) on both sides of the groove to achieve the stable lowering of the detector body (1). An angle adjustment mechanism is provided on the outer surface of the detector body (1). The angle adjustment mechanism includes a drive box (3). The angle adjustment mechanism is located below the suspension and lowering mechanism. Rotation adjustment is achieved through the angle adjustment mechanism. The outer surface of the detector body (1) is provided with a balance adjustment mechanism, which includes a propeller (4). The balance adjustment mechanism is located on one side of the angle adjustment mechanism. The balance adjustment mechanism is used to adjust the balance of the tilted detector body (1). The upper surface of the detector body (1) is fixedly connected to a protective shell (5), and the outer surface of the detector body (1) is fixedly fitted with a clamp (6). Multiple drive boxes (3) are arranged in a ring array with the outer surface axis of the clamp (6) as the center of symmetry. One side surface of the drive box (3) is fixedly connected to the outer surface of the clamp (6). An extended telescopic probe (7) is provided on the lower surface of the detector body (1). A through groove is opened on the upper surface of the mounting base (2). A guide wheel (21) is hinged to the inner wall of the through groove by a pin. A symmetrically distributed support block (22) is hinged to the inner wall of the mounting base (2) by a pin. One side surface of one of the support blocks (22) is provided with a symmetrically distributed positioning hole (23), and the interior of the other support block (22) is provided with a movable cavity (24). The inner top wall of the movable cavity (24) is provided with a first limiting hole and a second limiting hole, and the inner bottom wall of the movable cavity (24) is provided with a stroke groove (25). The inner wall of the movable cavity (24) is slidably sleeved with a limiting block (26). A positioning rod (27) is fixedly connected to one side surface of the limiting block (26) in a symmetrical arrangement. One end of the positioning rod (27) passes through and extends to one side surface of another support block (22). One end of the positioning rod (27) is movably inserted into the inner wall of the positioning hole (23). The inside of the limiting block (26) is provided with an installation cavity. The inner wall of the installation cavity is movably sleeved with a limiting ring (28). A limiting rod (29) is fixedly sleeved on the inner wall of the limiting ring (28). One end of the limiting rod (29) passes through and extends to the upper surface of the limiting block (26). One end of the limiting rod (29) is movably inserted into the inner wall of the first limiting hole. The other end of the limiting rod (29) passes through and runs through the groove (25) and extends to the lower surface of another support block (22). A pull ring (210) is fixedly connected to the other end of the limiting rod (29). A return spring (211) is movably sleeved on the outer surface of the limiting rod (29). One end of the return spring (211) is fixedly connected to the lower surface of the limiting ring (28). The other end of the reset spring (211) is fixedly connected to the inner bottom wall of the mounting cavity. A storage groove (212) is provided on the other side surface of the support block (22). A guide block (213) is movably sleeved on the inner wall of the storage groove (212). A lead screw (214) is fixedly connected to one side surface of the guide block (213). One end of the lead screw (214) passes through and extends to the other side surface of the support block (22). A support plate (215) is fixedly connected to one end of the lead screw (214). The cross-section of the support plate (215) is L-shaped. An annular groove is provided on the other side surface of the support block (22). A limiting slider (216) arranged in an annular array is slidably sleeved on the inner wall of the annular groove. One end of the limiting slider (216) is fixedly connected to a threaded ring (217). The inner wall of the threaded ring (217) is threadedly sleeved with the outer surface of the lead screw (214). The outer surface of the threaded ring (217) is fixedly connected to a handle arranged in a ring array. The other side surface of the drive box (3) is provided with an installation hole. The inner wall of the installation hole is fixedly sleeved with a positioning sleeve (31). The inner wall of the positioning sleeve (31) is provided with a positioning groove (32). The inner wall of the positioning groove (32) is slidably connected to a guide slider (33) arranged in a ring array. The inner surface of each of the multiple guide sliders (33) is fixedly connected to an adjusting tube (34). The outer surface of the adjusting tube (34) is rotatably sleeved with the inner wall of the positioning sleeve (31). One end of the regulating tube (34) is fixedly connected to the regulating block (35), and the outer surface of the other end of the regulating tube (34) is fixedly sleeved with a turbine (36). The front inner wall of the drive box (3) is fixedly installed with a first servo motor (37). The output shaft of the first servo motor (37) is fixedly installed with a worm gear (38) through a coupling. The outer surface of the worm gear (38) meshes with the tooth surface of the turbine (36). The balance adjustment mechanism also includes a transmission rod (41). The outer surface of the transmission rod (41) is installed with the inner wall of the regulating tube (34) through a bearing. One end of the transmission rod (41) penetrates and extends into the interior of the drive box (3). One end of the transmission rod (41) is fixedly sleeved with a first bevel gear (42). The other end of the transmission rod (41) passes through and extends into the interior of the adjusting block (35). A second bevel gear (43) is fixedly sleeved on the outer surface of the other end of the transmission rod (41). A second servo motor (44) is fixedly installed on the inner bottom wall of the drive box (3). A rotating shaft is fixedly installed on the output shaft of the second servo motor (44) through a coupling. A third bevel gear (45) is fixedly sleeved on the outer surface of one end of the rotating shaft. The tooth surface of the third bevel gear (45) meshes with the tooth surface of the first bevel gear (42). A rotating rod (46) is installed on the upper surface of the adjusting block (35) through a sealed bearing. A fourth bevel gear (47) is fixedly sleeved on the outer surface of one end of the rotating rod (46). The tooth surface of the fourth bevel gear (47) meshes with the tooth surface of the second bevel gear (43). The other end of the rotating rod (46) is fixedly connected to the lower surface of the propeller (4). Fixed rods (48) are fixedly connected to both sides of the adjusting block (35) in a symmetrical arrangement. A protective ring (49) is fixedly connected to one end of each of the two fixed rods (48).

2. The monitoring method of the high-precision monitoring device for sediment thickness of diaphragm wall according to claim 1 is as follows: Step 1, by rotating the threaded ring (217) clockwise by the handle, the rotation of the threaded ring (217) causes the screw (214) to extend outward through the cooperation of the guide block (213), thereby driving the support plate (215) to move. After moving to a suitable length, it is placed at both ends of the diaphragm wall groove. The threaded ring (217) is rotated again so that the support plate (215) is pressed against the inner wall on both sides of the diaphragm wall groove. At this time, one end of the wire on the pre-prepared winding frame is passed around the inner wall of the guide wheel (21) and installed with the detector body (1). After installation, the wire is extended by rotating the winding frame. The extension of the wire is delivered by the positioning of the guide wheel (21) so that the detector body (1) is stably lowered. Step 2: When the detector body (1) tilts during lowering, the tilt direction is determined by the angle balancer inside the protective shell (5), and the corresponding second servo motor (44) is controlled to work according to the tilt direction. The second servo motor (44) drives the third bevel gear (45) to rotate through the rotating shaft. The rotation of the third bevel gear (45) drives the transmission rod (41) to rotate through the meshing first bevel gear (42). The rotation of the transmission rod (41) drives the second bevel gear (43) to rotate. The rotation of the second bevel gear (43) drives the rotating rod (46) to rotate through the meshing fourth bevel gear (47). The rotation of the rotating rod (46) drives the propeller (4) to rotate. The rotation of the propeller (4) restores the balance of the detector body (1) through the cooperation of the water body. Step 3: When the detector body (1) is lowered and tilts between the two drive boxes (3), the two adjacent propellers (4) rotate. At the same time, the first servo motor (37) drives the worm (38) to rotate. The rotation of the worm (38) drives the regulating tube (34) to rotate through the meshing turbine (36). The rotation of the regulating tube (34) is stably adjusted by the cooperation of the positioning slide (32) and the guide slider (33). At the same time, it drives the regulating block (35) to rotate. The rotation of the regulating block (35) drives the propeller (4) to adjust the angle through the rotating rod (46), thereby realizing the corresponding water flow thrust to restore the balance of the detector body (1). When the detector body (1) is lowered to the bottom of the tank, the sediment is monitored by the extension of the extended telescopic probe (7) and the monitoring information is fed back in real time through the wire. Step four: After monitoring is completed, rotate the threaded ring (217) counterclockwise by the handle to retract the lead screw (214) into the receiving groove (212). The retraction of the lead screw (214) causes the support plate (215) to detach from both sides of the wall-connected groove, thus completing the disassembly. At this time, pull the pull ring (210) downward to move the limiting rod (29). The limiting rod (29) retracts through the limiting ring (28) and drives the return spring (211). At the same time, one end of the limiting rod (29) disengages from the first limiting hole. Pull the pull ring (210) horizontally again to move the limiting rod. (29) Drive the limiting block (26) to move in the moving cavity (24), thereby driving the positioning rod (27) to move, so that one end of the positioning rod (27) is disengaged from the positioning hole (23) to cancel the limit. After moving to a certain distance, release the pull ring (210). Through the reset action of the reset spring (211), the limiting ring (28) drives the limiting rod (29) to reset and move, so that one end of the limiting rod (29) is inserted into the second limiting hole for limiting and fixing. At this time, through the cooperation of the pin, the two support blocks (22) are flipped and folded, so as to facilitate storage and carrying.

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