A device and method for detecting settlement of foundation pit of pier cap.

Abstract

This invention belongs to the technical field of pier foundation pit settlement detection equipment, and more particularly to a pier foundation pit settlement detection device, including a transverse movement mechanism. The transverse movement mechanism includes a threaded block, and a hollow box is fixedly installed on the lower surface of the threaded block. A settlement monitor is installed on the hollow box. The settlement monitor includes a pressure sensor fixedly installed on the top wall of the hollow box and a data collector fixedly installed on the front of the hollow box. The data collector and the pressure sensor are electrically connected by wires. This invention, by setting up a cleaning component, allows the roller to rotate during the rolling process, causing the shaft rod to rotate in conjunction with the bevel gear and the bevel gear to rotate the plug rod. This, combined with the single-groove pulley and the double-groove pulley, causes the rotating rod to rotate the rotating disk, achieving the cleaning of the pit surface by the brush bristles. This avoids inaccurate detection results caused by the rolling pressure of stones and other debris, greatly improving the final settlement detection accuracy.

Description

Technical Field

[0001] This invention relates to the technical field of pier foundation pit settlement detection equipment, and in particular to a pier foundation pit settlement detection device and detection method. Background Technology

[0002] In the field of civil engineering and building structure monitoring, the settlement of pier foundation pits directly affects the overall stability and long-term safety of buildings. Therefore, accurate and efficient settlement detection technology is of great significance for preventing structural failure and ensuring public safety. However, traditional pier foundation pit settlement detection methods face many challenges in practical applications, specifically in the following aspects:

[0003] 1. Significant interference from debris: The construction site environment of the foundation pit is complex, and the surface of the pit is often covered with debris such as stones, soil, and debris. During the rolling process of the settlement detection device's rollers, this debris can not only directly hinder the smooth movement of the rollers, but also cause uneven force distribution, leading to deviations in the settlement detection data. Traditional detection devices lack efficient debris removal mechanisms, making it difficult to remove these debris in real time and effectively during the detection process, thus seriously affecting the accuracy and reliability of settlement detection.

[0004] 2. Dust Contamination and Wear Issues: During foundation pit inspection operations, dust on the pit surface is easily stirred up by the rolling rollers and enters the inspection device with the airflow, especially precision components such as guide rails and guide blocks. Dust accumulation not only increases the friction of these components, leading to decreased inspection accuracy, but may also accelerate wear and shorten the lifespan of the inspection device. Furthermore, the tiny particles in the dust may damage sensitive elements such as sensors, further affecting the accuracy of the inspection results.

[0005] 3. Increased friction leading to detection errors: As the detection device is used for an extended period, key components such as the guide groove and guide block gradually wear down due to long-term friction, resulting in increased friction. This not only increases energy consumption during the detection process but may also affect the stability of the detection data due to changes in friction, making it difficult to guarantee the accuracy of settlement detection results. Traditional detection devices often lack effective lubrication mechanisms, making it difficult to lubricate the guide groove and guide block in a timely and effective manner, thus exacerbating this problem. To address this, we provide a pier foundation pit settlement detection device and detection method. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes a pier foundation pit settlement detection device and method, which more accurately solves the problems mentioned in the background art.

[0007] This invention is achieved through the following technical solution:

[0008] The invention proposes a settlement detection device for a foundation pit of a pier, including a transverse movement mechanism. The transverse movement mechanism includes a threaded block, and a hollow box is fixedly installed on the lower surface of the threaded block. A settlement monitor is installed on the hollow box.

[0009] The settlement monitor includes a pressure sensor fixedly installed on the top wall of a hollow box and a data collector fixedly installed on the front of the hollow box. The data collector and the pressure sensor are electrically connected via wires. A spring is fixedly connected to the lower end of the pressure sensor, and a movable plate is fixedly welded to the lower end of the spring. A vertical rod is fixedly connected to the lower surface of the movable plate, and an n-shaped block is fixedly installed at the lower end of the vertical rod. A shaft rod is rotatably connected to the n-shaped block via a bearing, and a roller is fixedly installed around the shaft rod, with the roller inside the n-shaped block. A guide slide is connected between the hollow box and the movable plate. A cleaning component is installed on the n-shaped block. A blowing component is connected to the front and back of the hollow box. A lubrication mechanism is installed on the side of the hollow box.

[0010] The guide slide includes a guide slide groove 1 vertically opened on the inner side wall of the hollow box and a guide slide block 2 fixedly installed at both ends of the movable plate, and the guide slide block 2 is slidably connected to the inner wall of the guide slide groove 1.

[0011] The cleaning assembly includes a horizontal plate fixedly mounted on the upper surface of an n-shaped block. The horizontal plate is rotatably connected to a rotating rod via a bearing. A rotating disk is fixedly connected to the lower end of the rotating rod. Soft brush bristles are fixedly mounted on the lower surface of the rotating disk.

[0012] The hollow box body has fixed blocks welded to both the front and back sides. The fixed blocks are rotatably connected to the shaft rod two via bearings. A hollow sleeve rod is fixedly sleeved around the lower end of the shaft rod two. A plug-in rod is inserted into the inner wall of the hollow sleeve rod. A strip-shaped through groove is vertically opened around the hollow sleeve rod. A guide slider one is fixedly connected around the plug-in rod, and the guide slider one is slidably connected at the inner wall of the strip-shaped through groove. A spring two is fixedly connected to the upper end of the plug-in rod, and the upper end of the spring two is fixedly connected to the lower end of the shaft rod two.

[0013] A transmission structure is connected between the shaft rod, the rotating rod, and the plug rod.

[0014] Furthermore, the blowing component includes mounting holes on the front and back of the hollow box. A cross plate is fixedly installed on the inner wall of the mounting hole. A shaft rod three is rotatably connected to the center of the cross plate via a bearing. An exhaust fan is fixedly installed at one end of the shaft rod three to introduce outside air into the interior of the hollow box and form a downward airflow. A transmission structure two is connected between the shaft rod two and the shaft rod three.

[0015] Furthermore, the lubrication mechanism includes a placement box fixedly installed on the side of the hollow box and an oil outlet channel opened on the side of the hollow box, with one end of the oil outlet channel communicating with one end of the placement box and the other end communicating with the end wall of the guide groove.

[0016] The placement box contains a sponge block for absorbing lubricating oil. A push plate is slidably connected to the inner wall of the placement box for pushing the sponge block. A push-pull rod is inserted into the end of the placement box, and one end of the push-pull rod is fixedly connected to the surface of the push plate. A triangular plate is fixedly installed at the other end of the push-pull rod. A pushing component for pushing the triangular plate is installed around the shaft rod.

[0017] Furthermore, the transmission structure includes a bevel gear one fixedly installed at one end of the shaft rotating rod and a bevel gear two fixedly installed at the lower end of the plug rod, and the bevel gear two meshes with the bevel gear one. A single-groove pulley is fixedly connected to the upper end of the rotating rod, and a double-groove pulley is fixedly installed around the periphery of the plug rod. A linkage belt is wound around the periphery of the single-groove pulley and the double-groove pulley.

[0018] Furthermore, the transmission structure two includes a bevel gear three fixedly installed at the end of the shaft rod three and a bevel gear four fixedly installed at the upper end of the shaft rod two, and the bevel gear four meshes with the bevel gear three.

[0019] Furthermore, the pushing assembly includes a threaded groove formed on the periphery of the shaft rotating rod two. The shaft rotating rod two is threadedly sleeved with a threaded block two through the threaded groove. Both ends of the threaded block two are fixedly connected to a connecting frame. The end of the connecting frame is fixedly connected to a triangular plate two, which is located directly below the triangular plate one. A guide slide two is connected between the hollow box and the threaded block two.

[0020] Furthermore, the transverse movement mechanism also includes a fixed frame, the surface of which has a rectangular groove. A servo motor is fixedly installed at one end of the fixed frame. A threaded rod is rotatably connected to the inside of the rectangular groove via a bearing, and one end of the threaded rod is fixedly connected to the output end of the servo motor. A threaded block is threadedly sleeved around the threaded rod and slidably connected to the inner wall of the rectangular groove. A hydraulic telescopic rod is fixedly installed below one end of the fixed frame, and a mounting base is fixedly installed at the lower end of the hydraulic telescopic rod.

[0021] Furthermore, a filter screen is fixedly connected to the inner wall of the mounting hole to prevent dust in the outside air from entering the interior of the hollow box.

[0022] The upper surface of the placement box is provided with an oil injection hole for adding lubricating oil into the interior of the placement box. The inner wall of the oil injection hole is connected to a sealing cap.

[0023] Furthermore, the guide slide 2 includes a guide slide groove 2 vertically opened on the front and back of the hollow box body and a guide slide plate fixedly connected to the surface of the threaded block 2 opposite to the hollow box body, and the guide slide plate is slidably connected to the inner wall of the guide slide groove 2 to prevent the threaded block 2 from rotating with the shaft rod 2.

[0024] Furthermore, a detection method for a pier foundation pit settlement detection device is also provided, comprising the following steps:

[0025] a. The lateral movement mechanism is driven by a servo motor on the fixed frame to rotate the threaded rod. The threaded rod is threadedly connected to the threaded block, which allows the threaded block to slide horizontally in the rectangular groove, thus realizing the lateral movement function. At the same time, the hydraulic telescopic rod can adjust the height of the entire device, and the mounting base is used for stable support.

[0026] b. When the device is placed above the pit, the settlement of the pit will cause the movable plate to move downward through the uprights, n-shaped blocks and rollers; the movement of the movable plate will compress spring one, and the degree of deformation of spring one will be sensed by the pressure sensor and converted into an electrical signal. The data collector collects these signals and processes them to monitor the settlement.

[0027] c. The movable plate slides in the guide groove on the inner side wall of the hollow box through the guide sliders at both ends, ensuring that the movable plate moves stably and smoothly; when the roller rotates, it drives the rotating rod to rotate through the transmission structure, which in turn causes the rotating disk and brush bristles to rotate, cleaning the dirt and impurities on the roller.

[0028] d. The exhaust fan rotates on the cross plate via shaft rod three, drawing outside air into the hollow box and creating a downward airflow, which helps to dissipate heat and keep the interior clean; the rotation of shaft rod three is linked to shaft rod two via transmission structure two.

[0029] e. When the shaft rotates, the threaded connection between the threaded groove and the threaded block moves along the shaft. This, in turn, pushes the lower triangle plate and the push-pull rod through the connecting frame and triangle plate 2. The push plate moves accordingly, pushing the sponge block to release lubricating oil. The lubricating oil enters the guide groove 1 through the oil outlet channel, lubricating the contact surface between the guide block 2 and the guide groove 1.

[0030] The beneficial effects of this invention are:

[0031] This invention, by setting up a cleaning component, enables the roller to rotate during rolling, causing the shaft rod one, in conjunction with bevel gear one and bevel gear two, to drive the plug rod to rotate. This, in conjunction with single-groove and double-groove pulleys, causes the rotating rod to drive the rotating disk to rotate, thus achieving the cleaning of the pit surface by the brush bristles. This avoids inaccurate test results caused by the roller's rolling pressure due to stones and other debris, and significantly improves the final settlement detection accuracy.

[0032] This invention incorporates a blowing component that, during the rotation of the plug-in rod, coordinates with the strip-shaped through groove and guide slider one to cause the hollow sleeve rod to drive the shaft rotating rod two to rotate synchronously. This, in conjunction with bevel gears three and four, enables the shaft rotating rod three to drive the exhaust fan to rotate. At this point, air enters the hollow box through the mounting hole, effectively preventing dust from the pit surface from being stirred up and entering the hollow box. This avoids increased friction on the guide groove one and guide slider two due to dust, further improving the accuracy of settlement detection. Furthermore, the inclusion of a filter ensures that the air entering the hollow box from the outside is free of dust and other impurities.

[0033] This invention, by setting up a lubrication mechanism, allows the threaded block two to move up and down during the rotation of the shaft rod two in conjunction with the opening of the threaded groove. After the threaded block two moves up to a certain position, the triangular plate two pushes the triangular plate one. Then, under the design of the inclined surface, the triangular plate one drives the push-pull rod to move, thereby realizing the compression of the sponge block by the push plate. This allows the lubricating oil in the sponge block to be introduced into the inner wall of the guide groove one through the oil outlet channel, realizing the lubrication of the guide groove one and the guide block two. This reduces the friction between the guide groove one and the guide block two, and once again avoids the inaccuracy of settlement detection caused by friction. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a hollow box body according to an embodiment of the present invention;

[0035] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the present invention;

[0036] Figure 3 This is a cross-sectional view of the connection structure between the hollow box and the settlement monitor according to an embodiment of the present invention;

[0037] Figure 4 This is a cross-sectional view of the hollow box body according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of a partial structural connection between a hollow sleeve rod and a plug rod according to an embodiment of the present invention;

[0039] Figure 6 This is one embodiment of the present invention. Figure 1 Enlarged view of the structure at point A in the middle;

[0040] Figure 7 This is one embodiment of the present invention. Figure 1 Enlarged view of the structure at point B;

[0041] Figure 8 This is one embodiment of the present invention. Figure 4 Enlarged view of the structure at point C.

[0042] In the diagram: 1. Threaded block one; 2. Hollow box; 3. Pressure sensor; 4. Data collector; 5. Spring one; 6. Movable plate; 7. Vertical support rod; 8. N-shaped block; 9. Shaft rotation rod one; 10. Roller; 11. Horizontal extension plate; 12. Rotating rod; 13. Rotating disk; 14. Soft brush bristles; 15. Fixing block; 16. Shaft rotation rod two; 17. Hollow sleeve rod; 18. Insertion rod; 19. Bevel gear one; 20. Bevel gear two; 21. Strip groove; 22. Guide slider one; 23. Spring two; 24. Single groove pulley; 25. Double groove pulley; 26. Linkage belt; 27. Mounting hole; 28. Cross 29. Plate; 30. Shaft Rotor 3; 31. Exhaust Fan; 32. Bevel Gear 3; 33. Bevel Gear 4; 34. Guide Slide 1; 35. Guide Slide 2; 36. Placement Box; 37. Oil Outlet Channel; 38. Sponge Block; 39. Push Plate; 40. Push-Pull Rod; 41. Triangle Plate 1; 42. Threaded Groove; 43. Threaded Block 2; 44. Connecting Frame; 45. Triangle Plate 2; 46. Guide Slide Plate 2; 47. Oil Injection Hole; 48. Sealing Cover; 49. Filter Screen; 50. Fixing Frame; 51. Rectangular Groove; 52. Servo Motor; 53. Threaded Rod; 54. Hydraulic Telescopic Rod; 55. Mounting Base. Detailed Implementation

[0043] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0044] like Figures 1-8 As shown in the figure, an embodiment of the present invention proposes a settlement detection device for a foundation pit of a pier. The core of this device is a transverse movement mechanism. The transverse movement mechanism is mainly composed of a threaded block 1. A hollow box 2 is fixedly connected to the lower surface of the threaded block 1, and a settlement monitor is installed inside the hollow box 2. The settlement monitor consists of a pressure sensor 3 and a data collector 4, which are electrically connected by wires. The pressure sensor 3 is connected to a movable plate 6 via a spring 5. The movable plate 6 is connected to a rotating shaft 9 via a support rod 7 and an n-shaped block 8. A roller 10 is mounted on the rotating shaft 9. To ensure the smooth movement of the movable plate 6, a guide slide is provided between the hollow box 2 and the movable plate 6, including a guide slide groove 33 and a guide slide block 34. The n-shaped block 8 is also equipped with a cleaning assembly, which consists of a transverse extension plate 11, a rotating rod 12, a rotating disk 13, and a brush bristle 14. The hollow box 2 has a blower component connected to its front and back sides, consisting of a mounting hole 27, a cross plate 28, a shaft rotating rod 29, and an exhaust fan 30. In addition, a lubrication mechanism is installed on the side of the hollow box 2, including a housing 35, an oil outlet channel 36, and a sponge block 37. Through these structures, accurate monitoring of the pier foundation pit settlement is achieved, while ensuring the cleanliness of the roller 10 and the lubrication of the guide groove 33, thus improving detection accuracy and stability.

[0045] Furthermore, the blowing component is connected to the shaft rotating rod 29 via the cross plate 28 inside the mounting hole 27. One end of the shaft rotating rod 29 is equipped with an exhaust fan 30. The shaft rotating rod 26 and the shaft rotating rod 29 are connected by a transmission structure 2, namely bevel gear 31 and bevel gear 4, so that the rotation of the shaft rotating rod 26 can drive the exhaust fan 30 to rotate, forming a downward airflow, which helps to dissipate heat and keep the interior clean. The setting of the blowing component effectively prevents dust from the pit surface from being blown into the hollow box 2, ensuring the accuracy of settlement monitoring.

[0046] Furthermore, the lubrication mechanism consists of a housing 35, an oil outlet channel 36, a sponge block 37, a pushing plate 38, and a push-pull rod 39. One end of the push-pull rod 39 is connected to the pushing plate 38, and the other end is fixed with a triangular plate 40. The rotation of the shaft rod 16 pushes the triangular plate 40 through the pushing assembly, which includes a threaded groove 41, a threaded block 42, a connecting frame 43, and a triangular plate 44. This, in turn, drives the pushing plate 38 to push the sponge block 37, releasing lubricating oil to the oil outlet channel 36, lubricating the guide groove 33 and the guide slider 34. The lubrication mechanism reduces the friction between the guide groove 33 and the guide slider 34, further improving the accuracy of settlement detection.

[0047] Furthermore, the transmission structure includes a bevel gear 19, a bevel gear 20, a single-groove pulley 24, a double-groove pulley 25, and a linkage belt 26. The rotation of the shaft rod 9 drives the insertion rod 18 to rotate through the meshing of the bevel gear 19 and the bevel gear 20. At the same time, the double-groove pulley 25 on the insertion rod 18 is connected to the single-groove pulley 24 on the rotating rod 12 through the linkage belt 26, thereby realizing the rotation of the rotating rod 12, which in turn drives the cleaning roller 10 of the brush bristles 14. The transmission structure allows the roller 10 to clean itself automatically during the rolling process, avoiding inaccurate test results caused by stones and other debris.

[0048] Furthermore, the transmission structure two consists of bevel gear three 31 and bevel gear four 32, which mesh together, so that the rotation of shaft rod two 16 can drive shaft rod three 29 to rotate, thereby realizing the rotation of the induced draft fan 30; the setting of the transmission structure two realizes the linkage between shaft rod two 16 and shaft rod three 29, providing a power source for the blowing component.

[0049] Furthermore, the pushing assembly consists of a threaded groove 41, a threaded block 42, a connecting frame 43, and a triangular plate 44. The rotation of the shaft rod 16 drives the threaded block 42 to move through the threaded connection between the threaded groove 41 and the threaded block 42, which in turn pushes the lower triangular plate 40 and the push-pull rod 39 through the connecting frame 43 and the triangular plate 44, thereby releasing the lubricating oil. The pushing assembly realizes the linkage between the rotation of the shaft rod 16 and the release of the lubricating oil, providing a power source for the lubrication mechanism.

[0050] Furthermore, other components of the lateral movement mechanism are described, including a fixed frame 50, a rectangular groove 51, a servo motor 52, a threaded rod 53, a hydraulic telescopic rod 54, and a mounting base 55. The servo motor 52 drives the threaded rod 53 to rotate, causing the threaded block 1 to slide horizontally within the rectangular groove 51, thus achieving the lateral movement function. The hydraulic telescopic rod 54 adjusts the height of the entire device, and the mounting base 55 provides stable support. The lateral movement mechanism allows the device to move flexibly above the foundation pit, facilitating settlement monitoring.

[0051] Furthermore, a description has been added regarding the filter screen 49 on the inner wall of the mounting hole 27 and the oil filling hole 47 and sealing cap 48 at the upper end of the housing 35. The filter screen 49 is used to prevent dust from the outside air from entering the hollow housing 2, while the oil filling hole 47 and sealing cap 48 are used to add lubricating oil to the housing 35; the inclusion of the filter screen 49, oil filling hole 47, and sealing cap 48 further improves the stability and practicality of the device.

[0052] Furthermore, the structure and working principle of the second guide slide are described. The second guide slide consists of the second guide slide groove 45 and the second guide slide plate 46, which are used to prevent the second threaded block 42 from moving with the rotation of the second shaft rod 16; the setting of the second guide slide ensures the stability of the second threaded block 42 during the movement process, and provides a guarantee for the normal operation of the lubrication mechanism.

[0053] Furthermore, a detection method for a pier foundation pit settlement detection device is provided, including steps such as the movement of the lateral movement mechanism, data acquisition by the settlement monitor, the cleaning process of the cleaning component, the heat dissipation and cleaning function of the blowing component, and the lubrication process of the lubrication mechanism. The specific steps are as follows:

[0054] a. The lateral movement mechanism drives the threaded rod 53 to rotate via the servo motor 52, thereby realizing the lateral movement function of the device; at the same time, the hydraulic telescopic rod 54 adjusts the height of the device.

[0055] b. When the device is placed above the pit, the settlement of the pit causes the movable plate 6 to move downward via the roller 10, compressing the spring 5. The pressure sensor 3 senses the deformation and converts it into an electrical signal. The data collector 4 collects and processes these signals.

[0056] c. The movable plate 6 slides in the guide groove 33 via the guide slider 2 34. At the same time, the rotation of the roller 10 drives the rotating rod 12 to rotate through the transmission structure 1, so as to clean the roller 10 with the brush bristles 14.

[0057] d. The shaft rotating rod 29 rotates in conjunction with the shaft rotating rod 16 through the transmission structure 2, driving the exhaust fan 30 to rotate and drawing outside air into the hollow box 2, forming a downward airflow.

[0058] e. The rotation of shaft rod 16 pushes triangle plate 40 and push-pull rod 39 through push assembly, thereby releasing lubricating oil and lubricating guide groove 33.

[0059] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

Claims

1. A device for detecting settlement of a foundation pit of a pier, comprising a transverse movement mechanism, characterized in that, The transverse movement mechanism includes a threaded block (1), and a hollow box (2) is fixedly installed on the lower end surface of the threaded block (1). A settlement monitor is installed on the hollow box (2). The settlement monitor includes a pressure sensor (3) fixedly installed on the top wall inside the hollow box (2) and a data collector (4) fixedly installed on the front of the hollow box (2). The data collector (4) and the pressure sensor (3) are electrically connected by wires. A spring (5) is fixedly connected to the lower end of the pressure sensor (3). A movable plate (6) is fixedly welded to the lower end of the spring (5). A vertical rod (7) is fixedly connected to the lower surface of the movable plate (6). An n-shaped block (8) is fixedly installed at the lower end. The n-shaped block (8) is rotatably connected to a shaft rod (9) via a bearing. A roller (10) is fixedly installed on the periphery of the shaft rod (9), and the roller (10) is located inside the n-shaped block (8). A guide slide is connected between the hollow box (2) and the movable plate (6). A cleaning component is installed on the n-shaped block (8). A blower is connected to the front and back of the hollow box (2). A lubrication mechanism is installed on the side of the hollow box (2). The guide slide includes a guide slide groove 1 (33) vertically opened on the inner side wall of the hollow box (2) and a guide slide block 2 (34) fixedly installed at both ends of the movable plate (6), and the guide slide block 2 (34) is slidably connected to the inner wall of the guide slide groove 1 (33); The cleaning assembly includes a horizontal plate (11) fixedly mounted on the upper surface of the n-shaped block (8), the horizontal plate (11) being rotatably connected to a rotating rod (12) via a bearing, the lower end of the rotating rod (12) being fixedly connected to a rotating disk (13), and the lower surface of the rotating disk (13) being fixedly mounted with brush bristles (14). The hollow box (2) has fixed blocks (15) welded on both sides. The fixed blocks (15) are rotatably connected to the shaft rod two (16) through bearings. The lower end of the shaft rod two (16) is fixedly sleeved with a hollow sleeve rod (17). The inner wall of the hollow sleeve rod (17) is inserted with a plug rod (18). The hollow sleeve rod (17) has a vertically opened strip-shaped through groove (21) on its outer periphery. The plug rod (18) is fixedly connected with a guide slider one (22), and the guide slider one (22) is slidably connected at the inner wall of the strip-shaped through groove (21). The upper end of the plug rod (18) is fixedly connected with a spring two (23), and the upper end of the spring two (23) is fixedly connected to the lower end of the shaft rod two (16). A transmission structure is connected between the shaft rotating rod (9), the rotating rod (12), and the plug rod (18); The transmission structure includes a bevel gear 1 (19) fixedly installed at the end of the shaft rotating rod 1 (9) and a bevel gear 2 (20) fixedly installed at the lower end of the plug rod (18), and the bevel gear 2 (20) meshes with the bevel gear 1 (19). A single groove pulley (24) is fixedly connected to the upper end of the rotating rod (12), and a double groove pulley (25) is fixedly installed on the periphery of the plug rod (18). A linkage belt (26) is wound around the periphery of the single groove pulley (24) and the double groove pulley (25). The transverse mechanism also includes a fixed frame (50), on the surface of which a rectangular groove (51) is provided. A servo motor (52) is fixedly installed at one end of the fixed frame (50). A threaded rod (53) is rotatably connected inside the rectangular groove (51) through a bearing. One end of the threaded rod (53) is fixedly connected to the output end of the servo motor (52). The threaded block (1) is threaded around the threaded rod (53) and slidably connected to the inner wall of the rectangular groove (51). A hydraulic telescopic rod (54) is fixedly installed below one end of the fixed frame (50). A mounting base (55) is fixedly installed at the lower end of the hydraulic telescopic rod (54).

2. The pier foundation pit settlement detection device according to claim 1, characterized in that, The blowing component includes mounting holes (27) on the front and back of the hollow box (2). A cross plate (28) is fixedly installed on the inner wall of the mounting hole (27). A shaft rod three (29) is rotatably connected to the center of the cross plate (28) through a bearing. A fan (30) is fixedly installed at one end of the shaft rod three (29) to introduce outside air into the interior of the hollow box (2) and form a downward airflow. A transmission structure two is connected between the shaft rod two (16) and the shaft rod three (29).

3. The pier foundation pit settlement detection device according to claim 2, characterized in that, The lubrication mechanism includes a placement box (35) fixedly installed on the side of the hollow box (2) and an oil outlet channel (36) opened on the side of the hollow box (2), with one end of the oil outlet channel (36) communicating with one end of the placement box (35) and the other end communicating with the end wall of the guide groove (33). The placement box (35) contains a sponge block (37) for absorbing lubricating oil. A push plate (38) is slidably connected to the inner wall of the placement box (35) for pushing the sponge block (37). A push-pull rod (39) is inserted into the end of the placement box (35), and one end of the push-pull rod (39) is fixedly connected to the surface of the push plate (38). A triangular plate (40) is fixedly installed at the other end of the push-pull rod (39). A pushing component for pushing the triangular plate (40) is installed on the periphery of the shaft rotating rod (16).

4. The pier foundation pit settlement detection device according to claim 3, characterized in that, The transmission structure 2 includes a bevel gear 3 (31) fixedly installed at the end of the shaft rotating rod 3 (29) and a bevel gear 4 (32) fixedly installed at the upper end of the shaft rotating rod 2 (16), and the bevel gear 4 (32) meshes with the bevel gear 3 (31).

5. The pier foundation pit settlement detection device according to claim 4, characterized in that, The pushing assembly includes a threaded groove (41) on the periphery of the shaft rotating rod two (16). The shaft rotating rod two (16) is threadedly connected to a threaded block two (42) through the threaded groove (41). Both ends of the threaded block two (42) are fixedly connected to a connecting frame (43). The end of the connecting frame (43) is fixedly connected to a triangular plate two (44) and is located directly below the triangular plate one (40). A guide slide two is connected between the hollow box body (2) and the threaded block two (42).

6. The pier foundation pit settlement detection device according to claim 5, characterized in that, A filter screen (49) is fixedly connected to the inner wall of the mounting hole (27) to prevent dust in the outside air from entering the interior of the hollow box (2); The upper surface of the placement box (35) is provided with an oil injection hole (47) for adding lubricating oil into the interior of the placement box (35). The inner wall of the oil injection hole (47) is connected to a sealing cap (48).

7. The pier foundation pit settlement detection device according to claim 6, characterized in that, The guide slide includes a guide slide groove (45) vertically opened on the front and back of the hollow box (2) and a guide slide plate (46) fixedly connected to the surface of the threaded block (42) relative to the hollow box (2). The guide slide plate (46) is slidably connected to the inner wall of the guide slide groove (45) to prevent the threaded block (42) from rotating with the shaft rod (16).

8. A detection method for a pier foundation pit settlement detection device, comprising the pier foundation pit settlement detection device according to claim 7, characterized in that, Includes the following steps: a. The transverse mechanism drives the threaded rod (53) to rotate via the servo motor (52) on the fixed frame (50). The threaded rod (53) is threadedly connected to the threaded block (1), so that the threaded block (1) slides horizontally in the rectangular groove (51) to achieve the transverse function. At the same time, the hydraulic telescopic rod (54) can adjust the height of the entire device, and the mounting base (55) is used for stable support. b. When the device is placed above the pit, the settlement of the pit will cause the movable plate (6) to move downward through the upright rod (7), the n-shaped block (8) and the roller (10); the degree of deformation of the spring (5) is sensed by the pressure sensor (3) and converted into an electrical signal. The data collector (4) collects and processes these signals to monitor the settlement. c. The movable plate (6) slides in the guide groove (33) on the inner side wall of the hollow box (2) through the guide sliders (34) at both ends, ensuring that the movable plate (6) moves stably and smoothly; when the roller (10) rotates, it drives the rotating rod (12) to rotate through the transmission structure, thereby causing the rotating disk (13) and the brush bristles (14) to rotate, cleaning the dirt and impurities on the roller (10); d. The exhaust fan (30) rotates on the cross plate (28) via the shaft rotating rod three (29), drawing outside air into the hollow box (2) to form a top-down airflow, which helps to dissipate heat and keep the interior clean; the rotation of the shaft rotating rod three (29) is linked with the shaft rotating rod two (16) through the transmission structure two; e. When the shaft rod 2 (16) rotates, the threaded connection between the threaded groove (41) and the threaded block 2 (42) causes the threaded block 2 (42) to move along the shaft rod 2 (16), and then pushes the triangular plate 1 (40) and the push-pull rod (39) through the connecting frame (43) and the triangular plate 2 (44). The push plate (38) moves accordingly, and pushes the sponge block (37) to release lubricating oil. The lubricating oil enters the guide groove 1 (33) through the oil outlet channel (36) to lubricate the contact surface of the guide block 2 (34) and the guide groove 1 (33).

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