A settlement monitoring device for building foundations

Abstract

This invention discloses a settlement monitoring device for building foundations, relating to the field of foundation monitoring technology. It includes a mounting plate assembly with a height adjustment component, a settlement component, a numerical amplification component, and a snap-fit ​​component on its top surface. The mounting plate assembly includes a base plate and four threaded rods. The bottom of the height adjustment component is connected to the top surface of the base plate, and the height adjustment component is used to adjust the vertical height of the settlement component. The top of the height adjustment component is connected to the bottom of the settlement component, and the outer periphery of the settlement component is connected to the bottom of the numerical amplification component. The numerical amplification component is used to convert the settlement value of the settlement component into a visual value for display. This invention incorporates an amplification structure that can achieve ultra-high magnification of displacement, adapting to the monitoring requirements of high precision and minimal settlement, making minute settlement displacements clearer. Furthermore, the simultaneous operation of two amplification structures in the device reduces errors and improves overall measurement accuracy.

Description

Technical Field

[0001] This invention relates to the field of foundation monitoring technology, and in particular to a settlement monitoring device for building foundations. Background Technology

[0002] A building foundation settlement monitoring device is a complete set of equipment designed to ensure the safety of buildings and foundations. It uses sensors, mechanical structures, or measuring instruments to collect real-time / periodic data on vertical displacement (settlement) of the foundation, and then transmits, records, and analyzes this data. Because lifting and angle adjustment are inconvenient, devices with multi-directional adjustments are also available. For example, Chinese utility model application CN221034856U discloses a foundation settlement monitoring device for building engineering, comprising an instrument body, an angle adjustment mechanism, a translation mechanism, and a lifting mechanism. The angle adjustment mechanism drives and connects to the instrument body, and is used to adjust the shooting angle of the instrument body along the horizontal plane. The translation mechanism drives and connects to the angle adjustment mechanism, and is used to drive the angle adjustment mechanism laterally along the horizontal plane, causing the angle adjustment mechanism to move the instrument body horizontally. The lifting mechanism drives and connects to the translation mechanism, and is used to drive the translation mechanism vertically, causing the translation mechanism to move the instrument body vertically. This utility model proposes a technical solution that combines an angle adjustment mechanism, a translation mechanism, and a lifting mechanism to achieve multi-directional adjustment of the instrument's main shooting angle, improving the flexibility of vertical, horizontal, and angle adjustments and ensuring monitoring accuracy. However, current settlement monitoring devices for building foundations have the following drawbacks: Current settlement monitoring devices for building foundations, while capable of multi-directional adjustment, suffer from insufficient precision in amplifying minute settlements, lack of graded early warning and extreme value locking functions, and are prone to problems such as large measurement errors, overtravel damage, data rebound distortion, and untimely safety warnings, making it difficult to meet the high-precision and high-reliability engineering monitoring requirements.

[0003] Therefore, it is necessary to propose a settlement monitoring device for building foundations to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a settlement monitoring device for building foundations to solve the problems of insufficient amplification accuracy of small settlement, lack of graded early warning and extreme value locking functions, easy occurrence of large measurement errors, overtravel damage, data rebound distortion, and untimely safety warnings, which make it difficult to meet the requirements of high-precision and high-reliability engineering monitoring.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a settlement monitoring device for building foundations, comprising an installation plate assembly, wherein the top surface of the installation plate assembly is provided with a height adjustment component, a settlement component, a numerical amplification component, and a snap-fit ​​component; the installation plate assembly includes a base plate and four threaded rods; the bottom of the height adjustment component is connected to the top surface of the base plate, and the height adjustment component is used to adjust the vertical height of the settlement component; the top of the height adjustment component is connected to the bottom of the settlement component; the outer periphery of the settlement component is connected to the bottom of the numerical amplification component, and the numerical amplification component is used to convert the settlement value of the settlement component into a visual value for display; the top of the settlement component is connected to the top of the snap-fit ​​component. The settling component is equipped with a locking component, which is used to lock the settling display value of the settling component; The settlement assembly includes a pneumatic rod, a limiting buckle, and a long column. The pneumatic rod has a cylinder and a piston rod, with the piston rod located at the top of the cylinder. Limiting components are provided on both sides of the locking assembly for locking and fixing the locking assembly. A locking component is provided inside the locking assembly for locking the piston rod of the pneumatic rod. The limiting buckle is fixed to the fixing seat at the top of the pneumatic rod by bolts. A connecting rod is fixedly connected to the bottom of the outer wall of the limiting buckle for transmitting settlement displacement. The base plate has threaded holes at all four corners, and the threaded rod is threadedly connected to the corresponding threaded hole. The bottom end of the threaded rod has a tapered structure.

[0006] Preferably, the numerical amplification component includes a connecting block, a semicircular plate, and a first rotating column. The connecting block is fixedly connected to the outer wall of the cylinder of the pneumatic rod, the semicircular plate is fixedly connected to the top of the connecting block, the middle part of the first rotating column is rotatably disposed in the middle of the semicircular plate, a short rod and a long rod are fixedly connected to the outer periphery of the first rotating column, the short rod and the long rod are distributed at an angle of 10 degrees with the axis of the first rotating column as the center, the free end of the connecting rod is engaged with the top surface of the short rod by a one-way pushing fit, a circular groove is opened at the bottom of the semicircular plate, a pointer is rotatably disposed inside the circular groove, a tension spring is fixedly connected to one end of the long rod, and one end of the tension spring is fixedly connected to the side wall of the connecting block.

[0007] Preferably, the surface of the semicircular plate and the inside of the circular groove are provided with graduations. The length of the long rod is a geometric multiple of the length of the short rod. A second rotating column and a third rotating column are rotatably arranged inside the semicircular plate. The end of the third rotating column is fixedly connected to a pointer. A second gear is fixedly connected to the outer periphery of the second rotating column. A third gear is fixedly connected to the outer periphery of the third rotating column. A first gear is fixedly connected to the outer periphery of the first rotating column. The first gear, the second gear, and the third gear are all located inside the semicircular plate. The first gear, the second gear, and the third gear are sequentially meshed and connected. The first gear, the second gear, and the third gear constitute a multi-stage amplification mechanism. The first gear, the second gear, and the third gear have a geometric multiple transmission relationship.

[0008] Preferably, the locking assembly includes a ratchet, a pawl, and two third springs. The ratchet is rotatably disposed inside the semicircular plate and is fixedly sleeved on one end of the first rotating post. A square groove is provided on the back of the semicircular plate, and the pawl is slidably disposed inside the square groove. The pawl engages with the ratchet. The top ends of the two third springs are fixedly connected to the bottom surface of the pawl, and the bottom ends of the third springs are fixedly connected to the bottom surface of the square groove. A control plate is fixedly connected to one bottom side of the pawl, and the control plate is slidably connected to the square groove.

[0009] Preferably, the snap-fit ​​assembly includes two vertical plates, a first limiting block, and two second limiting blocks. The two vertical plates are respectively fixedly disposed on both sides of the top surface of the base plate, and the two second limiting blocks are respectively fixedly connected to both sides of the first limiting block. The second limiting blocks are slidably connected to the corresponding vertical plates. A circular hole is provided through the middle of the first limiting block, and the piston rod of the pneumatic rod is located in the circular hole. An elastic circular scraper is fixedly connected to the top of the inner wall of the circular hole, and the elastic circular scraper is in contact with the outer periphery of the piston rod of the pneumatic rod.

[0010] Preferably, the locking assembly includes a first square cavity, two locking blocks, and two arc-shaped brake pads. The first square cavity is located inside the first limiting block and communicates with a circular hole. The two locking blocks are slidably disposed on both sides of the first square cavity. Each of the two locking blocks has an arc-shaped groove on the side closest to each other. The arc-shaped brake pads are fixedly connected to the corresponding arc-shaped grooves and are used to lock the piston rod of the pneumatic rod. The tops of the two locking blocks at their opposite ends are both arc-shaped. The first square cavity contains a plurality of first springs, and the two ends of the plurality of first springs are fixedly connected to the side walls of the two locking blocks respectively.

[0011] Preferably, the top of the vertical plate has a plurality of through holes evenly distributed through it. The limiting component includes a second square cavity, a square insert block, and a square opening. The second square cavity is opened inside the corresponding second limiting block. The square opening is distributed through the second square cavity. The second square cavity and the square opening are connected. The vertical plate is slidably connected to the corresponding square opening. The square insert block is slidably disposed inside the second square cavity. The second square cavity passes through the square opening and is inserted into any corresponding through hole. A plurality of second springs are fixedly connected to one side of the square insert block. One end of the plurality of second springs is fixedly connected to the side wall of the corresponding second square cavity. A pull rod is fixedly connected to the middle of one side of the square insert block. The pull rod is slidably connected to the second limiting block.

[0012] Preferably, a square plate is fixedly connected to the top of the piston rod of the pneumatic rod, and plug-in parts are fixedly connected to the bottom surfaces of both sides of the square plate. The vertical cross-section of the plug-in parts is triangular. Through holes are opened on both sides of the first limiting block. The through holes communicate with the first square cavity. The plug-in parts pass through the through holes and make movable contact with the corresponding locking blocks. Connecting plates are fixedly connected to both sides of the square plate. A first alarm button and a second alarm button are respectively installed on both sides of the top surface of the first limiting block. The first alarm button and the second alarm button make movable contact with the bottom surface of the corresponding connecting plate.

[0013] Preferably, two elongated columns are evenly arranged on both sides of the inner wall of the limiting buckle, and the top two sides of the limiting buckle and the elongated columns are elastic. A damping end cap is fixedly connected to the top of the cylinder of the pneumatic rod. The damping end cap is slidably connected to the piston rod of the pneumatic rod. The damping end cap is used to increase the movement resistance of the piston rod.

[0014] Preferably, the height adjustment assembly includes a cylindrical base, a lead screw, and a sliding column. The cylindrical base is fixedly connected to the center of the top surface of the base plate. A circular groove is formed in the center of the top surface of the cylindrical base. The sliding column is slidably disposed inside the circular groove. The top end of the sliding column is fixedly connected to the bottom end of the pneumatic rod. Limiting grooves are formed on both sides of the circular groove. Limiting rods matching the circular groove are fixedly connected to both sides of the sliding column and are slidably connected to the circular groove. A lead screw is rotatably disposed on the bottom surface of the circular groove. A cylindrical cavity is formed inside the sliding column. A limiting piece is slidably disposed inside the cylindrical cavity. A threaded hole is formed at the bottom of the sliding column. The lead screw is engaged with the threaded hole. The top end of the lead screw is fixedly connected to the bottom surface of the limiting piece. A first bevel gear and a second bevel gear are provided at the bottom of the cylindrical base. The bottom end of the lead screw is fixedly connected to the first bevel gear. An adjusting rod is rotatably disposed on one side of the cylindrical base. The end of the adjusting rod is fixedly connected to the second bevel gear. The first bevel gear and the second bevel gear are meshed together.

[0015] The technical effects and advantages of this invention are as follows: The invention includes an amplification structure that can achieve ultra-high magnification of displacement, adapting to the monitoring requirements of high precision and minimal settlement, making minute settlement displacements clearer. Furthermore, the two amplification structures in the device operate simultaneously, reducing errors and improving overall measurement accuracy. The present invention is equipped with a snap-fit ​​component and a locking component. When the settling component settles to the limit position, it can not only fix the settlement value and provide safety protection, but also effectively prevent the settling component from being damaged due to overload impact or excessive stroke, significantly extend the service life of the device, and ensure that the device can operate stably for a long time under complex working conditions. The invention also includes a first alarm button and a second alarm button. When the settlement component settles, the linkage of the components can issue different levels of early warning information. The operators can use the early warning information to immediately grasp the safety status of the foundation settlement, take targeted measures according to the grade, effectively prevent structural safety risks, and ensure the safety of engineering construction and use. The invention also includes a locking component. When the device is removed, the locking component will lock the value, and the value will not change, thus avoiding value distortion caused by rebound. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 This is a schematic cross-sectional view of the lower half of the structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the upper part of the structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the limiting component and the snap-fit ​​component of the present invention.

[0020] Figure 5 This is a cross-sectional view of the limiting component and a schematic diagram of the snap-fit ​​component of the present invention.

[0021] Figure 6 This is a schematic diagram of the settling component of the present invention.

[0022] Figure 7 This is a schematic diagram of the numerical amplification component of the present invention.

[0023] Figure 8 This is a front cross-sectional view of the numerical amplification component of the present invention.

[0024] Figure 9 This is a cross-sectional view of the back of the numerical amplification component and a schematic diagram of the locking component of the present invention.

[0025] Figure 10 For the present invention Figure 9 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Mounting plate assembly; 11. Base plate; 12. Threaded insert rod 2. Height adjustment assembly; 21. Cylindrical base; 22. Lead screw; 23. Sliding column; 24. Limiting piece; 25. Cylindrical cavity; 26. First bevel gear; 27. Adjusting rod; 28. Second bevel gear 3. Settlement assembly; 31. Pneumatic strut; 32. Limiting buckle; 33. Long column; 34. Connecting rod; 35. Square plate; 36. Connector; 37. Connecting plate; 38. Damping end cap 4. Numerical amplification component; 41. Connecting block; 42. Semicircular plate; 43. First rotating column; 44. Short rod; 45. Long rod; 46. Circular groove; 47. Pointer; 48. Tension spring; 49. First gear; 410. Second gear; 411. Second rotating column; 412. Third rotating column; 413. Third gear 5. Snap-fit ​​assembly; 51. Vertical plate; 52. First limiting block; 53. Second limiting block; 54. Insertion hole; 55. Circular hole; 56. Elastic circular scraper; 57. First alarm button; 58. Second alarm button; 59. Through hole 6. Locking assembly; 61. First square cavity; 62. Locking block; 63. Arc-shaped brake pad; 64. First spring 7. Limiting component; 71. Second square cavity; 72. Square insert; 73. Square opening; 74. Pull rod; 75. Second spring 8. Locking assembly; 81. Ratchet; 82. Pad; 83. Third spring; 84. Control panel; 85. Square slot. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. In the description of this invention, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] This invention provides, for example Figures 1-10The device shown is a settlement monitoring device for building foundations, comprising a mounting plate assembly 1. The top surface of the mounting plate assembly 1 is provided with a height adjustment component 2, a settlement component 3, a numerical amplification component 4, and a snap-fit ​​component 5. The mounting plate assembly 1 includes a base plate 11 and four threaded rods 12. The bottom of the height adjustment component 2 is connected to the top surface of the base plate 11, and the height adjustment component 2 is used to adjust the vertical height of the settlement component 3. The top of the height adjustment component 2 is connected to the bottom of the settlement component 3. The outer periphery of the settlement component 3 is connected to the bottom of the numerical amplification component 4, and the numerical amplification component 4 is used to convert the settlement value of the settlement component 3 into a visual value for display. The top of the settling component 3 is connected to the top of the snap-fit ​​component 5. During monitoring, a monitoring rod is installed on the foundation. The device is placed below the monitoring rod. The staff uses the mounting plate component 1 to connect the device to the installation location. The height of the settling component 3 is adjusted using the height adjustment component 2. The height adjustment of the settling component 3 is convenient to adapt to monitoring rods of different heights. The top of the settling component 3 contacts the outer periphery of the bottom of the monitoring rod. During observation, the pressure of settlement causes the settling component 3 to move downward. The vertical displacement of the settling component 3 drives the numerical amplification component 4 to perform an indication action. The numerical amplification component 4 displays the settlement value.

[0029] It should be noted that threaded holes are provided at all four corners of the base plate 11, and the threaded rod 12 is threadedly connected to the corresponding threaded holes. The bottom end of the threaded rod 12 has a tapered structure. When the device needs to be installed, the mounting plate assembly 1 is placed at the location where it needs to be installed. The tapered design of the bottom end of the threaded rod 12 allows for better insertion into the ground. A liquid level can also be installed on the top surface of the base plate 11, or the device can be judged to be level by an external leveling structure. When the threaded rod 12 is inserted into the ground and the device is not level, the top of the threaded rod 12 can be rotated using a wrench or other external parts. The engagement of the threaded rod 12 with the threaded hole on the base plate 11 completes the adjustment of the base plate 11, ensuring that the mounting plate assembly 1 is in a level position and guaranteeing the installation accuracy of the device.

[0030] In this invention, the height adjustment component 2 includes a cylindrical base 21, a lead screw 22, and a sliding column 23. The cylindrical base 21 is fixedly connected to the center of the top surface of the base plate 11. A circular groove is formed in the center of the top surface of the cylindrical base 21. The sliding column 23 is slidably disposed inside the circular groove. The top end of the sliding column 23 is fixedly connected to the bottom end of the pneumatic rod 31. Limiting grooves are formed on both sides of the circular groove. Limiting rods matching the circular groove are fixedly connected to both sides of the sliding column 23. The limiting rods are slidably connected to the circular groove. The lead screw 22 is rotatably disposed on the bottom surface of the circular groove. A cylindrical cavity 25 is formed inside the sliding column 23. A limiting piece 24 is slidably disposed inside the cylindrical cavity 25. A threaded hole is formed at the bottom of the sliding column 23. The lead screw 22 is connected to the threaded hole. The top end of the lead screw 22 is fixedly connected to the bottom surface of the limiting piece 24. A first bevel gear 2 is provided at the bottom of the cylindrical base 21. The bottom end of the lead screw 22 is fixedly connected to the first bevel gear 26. An adjusting rod 27 is rotatably provided on one side of the cylindrical base 21. The end of the adjusting rod 27 is fixedly connected to the second bevel gear 28. The first bevel gear 26 and the second bevel gear 28 are meshed together. When the height of the settling component 3 needs to be adjusted, the adjusting rod 27 is rotated. The rotation of the adjusting rod 27 drives the second bevel gear 28 to rotate. The rotation of the second bevel gear 28 drives the first bevel gear 26 to rotate. The rotation of the first bevel gear 26 drives the lead screw 22 to rotate. The rotation of the lead screw 22 drives the sliding column 23 to move. The sliding column 23 moves in the circular groove inside the cylindrical base 21. When the sliding column 23 moves, the limiting piece 24 moves in the cylindrical cavity 25. The limiting piece 24 limits the sliding column 23. The movement of the sliding column 23 moves the pneumatic rod 31 to the specified height.

[0031] Furthermore, the settling component 3 is equipped with a locking component 8, which is used to lock the settlement display value of the settling component 3. During settlement, the locking component 8 will not affect the value change of the device. After the device is removed, the locking component 8 will lock the value and the value will not change, thus avoiding value distortion caused by rebound.

[0032] In this invention, the settling assembly 3 includes a pneumatic rod 31, a limiting buckle 32, and a long column 33. The pneumatic rod 31 is provided with a cylinder and a piston rod. The piston rod is located at the top of the cylinder. Limiting components 7 are provided on both sides of the locking assembly 5. The limiting components 7 are used for locking and fixing the locking assembly 5. A locking component 6 is provided inside the locking assembly 5. The locking component 6 is used to lock the piston rod of the pneumatic rod 31. The limiting buckle 32 is fixed to the fixing seat at the top of the pneumatic rod 31 by bolts. A connecting rod 34 is fixedly connected to the bottom of the outer wall of the limiting buckle 32. The connecting rod 34 is used to transmit the settlement displacement. The piston rod of the pneumatic rod 31 has a limit structure between it and the cylinder. The limit structure ensures that the piston rod will not rotate. During the monitoring process, the settlement of the monitoring rod causes the piston rod to move on the cylinder. When the piston rod settles to the limit position, the cooperation of the components causes the locking assembly 6 to lock the piston rod, which facilitates the retention of the maximum settlement of the foundation and prevents the numerical rebound distortion. It can not only fix the settlement value and provide safety protection, but also effectively prevent the settlement assembly 3 from being damaged due to overload impact and excessive stroke, significantly extend the service life of the device, and ensure that the device can operate stably for a long time under complex working conditions.

[0033] It should be noted that two elongated posts 33 are evenly arranged on both sides of the inner wall of the limiting buckle 32. The top sides of the limiting buckle 32 and the elongated posts 33 are all elastic. The top of the cylinder of the pneumatic rod 31 is fixedly connected to a damping end cap 38. The damping end cap 38 is slidably connected to the piston rod of the pneumatic rod 31. The damping end cap 38 is used to increase the movement resistance of the piston rod. The elastic setting of the top of the limiting buckle 32 can adapt to different monitoring rods. The elastic setting of the elongated posts 33 can firmly clamp the monitoring rod, ensuring that it only moves up and down during settlement and does not sway left and right, avoiding jamming and false alarms. The setting of the damping end cap 38 can increase the movement resistance of the piston rod, which can not only effectively buffer instantaneous impact, but also eliminate shaking and inertia during movement, making the overall operation more stable and reliable. At the same time, the damping structure of the damping end cap 38 can provide a moderate locking force. The damping end cap 38 also has a dustproof effect, preventing dust from entering the cylinder of the pneumatic rod 31 during use, thereby affecting the use of the pneumatic rod 31.

[0034] It should also be noted that the settling component 3 maintains a certain height under normal conditions. After the device is used, the high-pressure gas inside the cylinder pushes the piston rod to automatically reset, so that the device returns to its initial position. The device can be reused without manual intervention.

[0035] In this invention, the numerical amplification component 4 includes a connecting block 41, a semi-circular plate 42, and a first rotating column 43. The connecting block 41 is fixedly connected to the outer wall of the cylinder of the pneumatic rod 31. The semi-circular plate 42 is fixedly connected to the top of the connecting block 41. The first rotating column 43 is rotatably disposed in the middle of the semi-circular plate 42. A short rod 44 and a long rod 45 are fixedly connected to the outer periphery of the first rotating column 43. The short rod 44 and the long rod 45 are distributed at a 120-degree angle with the axis of the first rotating column 43 as the center. The free end of the connecting rod 34 and the top surface of the short rod 44 are engaged by a one-way pushing fit. A circular groove 46 is opened at the bottom of the semi-circular plate 42. A pointer 47 is rotatably disposed inside the circular groove 46. A tension spring 48 is fixedly connected to one end of the long rod 45. One end of the tension spring 48 is fixedly connected to the side wall of the connecting block 41. The connecting block 41 is installed on the outer wall of the cylinder of the pneumatic rod 31. When the settling component 3 is adjusting its height, the numerical amplification component 4 will also change its height accordingly. During the settling process, the cooperation between the settling component 3 and the component causes the connecting rod 34 to move downward. The connecting rod 34 drives the short rod 44 to move downward. The short rod 44 drives the first rotating column 43 to rotate. The rotation of the first rotating column 43 drives the long rod 45 to rotate. The cooperation between the long rod 45 and the connecting block 41 stretches the tension spring 48. When the device returns to its original position, the tension spring 48 uses its tension to pull the long rod 45 back to its initial position to ensure subsequent reuse. At the same time, the pointer 47 also rotates in the circular groove 46.

[0036] It should be noted that the tension spring 48 is made of high elasticity and high fatigue strength stainless steel / alloy spring, which is fatigue-resistant, corrosion-resistant, and can withstand tens of thousands of repeated compressions. It does not lose elasticity over long-term use, ensuring a constant restoring force.

[0037] It should also be noted that the surface of the semicircular plate 42 and the inside of the circular groove 46 are both provided with scales. The length of the long rod 45 is a geometric multiple of the length of the short rod 44. A second rotating column 411 and a third rotating column 412 are rotatably arranged inside the semicircular plate 42. The end of the third rotating column 412 is fixedly connected to the pointer 47. A second gear 410 is fixedly connected to the outer periphery of the second rotating column 411, and a third gear 413 is fixedly connected to the outer periphery of the third rotating column 412. A first gear 49 is fixedly connected to the outer periphery of the first rotating column 43. The first gear 49, the second gear 410, and the third gear 413 are all located inside the semicircular plate 42. The first gear 49, the second gear 410, and the third gear 413 are sequentially meshed and connected. The first gear 49, the second gear 410, and the third gear 413 constitute a multi-stage amplification mechanism. The first gear 49, the second gear 410, and the third gear 413 have a geometric multiple transmission relationship. The scales on grooves 42 and 46 facilitate observation of settlement values ​​by staff. When the first rotating column 43 rotates, it drives the first gear 49 to rotate, which in turn drives the second gear 410 to rotate. The second gear 410 then drives the second rotating column 411 to rotate, which in turn drives the third gear 413 to rotate. The third gear 413 then drives the third rotating column 412 to rotate. The length of the long rod 45 is a geometric multiple of the length of the short rod 44. Utilizing the lever principle, single-stage amplification is achieved through the length ratio. The first gear 49, the second gear 410, and the third gear 413 are in a geometric multiple transmission relationship. Through the step-by-step geometric multiple transmission of multiple transmission components, ultra-high magnification of displacement can be achieved, adapting to the monitoring needs of high precision and minimal settlement. This makes minute settlement displacements clearer and more intuitive. The simultaneous operation of the two amplification structures reduces errors and improves overall measurement accuracy.

[0038] It should also be noted that the locking assembly 8 includes a ratchet 81, a pawl 82, and two third springs 83. The ratchet 81 is rotatably disposed inside the semicircular plate 42 and is fixedly sleeved on one end of the first rotating post 43. A square groove 85 is provided on the back of the semicircular plate 42, and the pawl 82 is slidably disposed inside the square groove 85, engaging with the ratchet 81. The top ends of the two third springs 83 are fixedly connected to the bottom surface of the pawl 82, and the bottom ends of the third springs 83 are fixedly connected to the bottom surface of the square groove 85. A control plate 84 is fixedly connected to one side of the bottom of the pawl 82, and the control plate 84 is slidably connected to the square groove 85. As the first rotating column 43 rotates, it drives the ratchet 81 to rotate. The ratchet 81 rotates, and its teeth press the pawl 82 downward. The pawl 82 cooperates with the third spring 83 to compress the third spring 83. When the first rotating column 43 stops rotating, the third spring 83 uses its elasticity to restore the pawl 82 to its original position. The pawl 82 is engaged with the teeth of the ratchet 81, fixing the first rotating column 43 and ensuring that the settlement value does not change. When it is necessary to restore the device to its original position, the control plate 84 is pressed down, and the control plate 84 moves away from the pawl 82. At this time, the ratchet 81 and the first rotating column 43 can rotate freely, and the device can return to its initial state.

[0039] In this invention, the snap-fit ​​assembly 5 includes two vertical plates 51, a first limiting block 52, and two second limiting blocks 53. The two vertical plates 51 are respectively fixedly disposed on both sides of the top surface of the base plate 11. The two second limiting blocks 53 are respectively fixedly connected to both sides of the first limiting block 52. The second limiting blocks 53 are slidably connected to the corresponding vertical plates 51. A circular hole 55 is provided through the middle of the first limiting block 52. The piston rod of the pneumatic rod 31 is located in the circular hole 55. An elastic circular scraper 56 is fixedly connected to the top of the inner wall of the circular hole 55. The elastic circular scraper 56 contacts the outer periphery of the piston rod of the pneumatic rod 31. The settling component 3 can be limited by adjusting the snap-fit ​​component 5 to prevent impact damage caused by overtravel of the settling component 3, protect internal components, ensure safe and reliable measurement, and extend the service life of the device. In use, the second limit block 53 is slidable and slides on the vertical plate 51. The sliding of the second limit block 53 drives the first limit block 52 to move. The first limit block 52 limits the stroke of the piston rod of the pneumatic rod 31. When the piston rod moves, the elastic ring scraper 56 contacts the piston rod and cleans the impurities on the outer circumference of the piston rod, ensuring the smooth operation of the piston rod.

[0040] Furthermore, a square plate 35 is fixedly connected to the top of the piston rod of the pneumatic rod 31. Insertion pieces 36 are fixedly connected to the bottom surfaces of both sides of the square plate 35. The vertical cross-section of the insertion piece 36 is triangular. Through holes 59 are opened on both sides of the first limiting block 52, communicating with the first square cavity 61. The insertion piece 36 passes through the through holes 59 and makes movable contact with the corresponding locking block 62. Connecting plates 37 are fixedly connected to both sides of the square plate 35. A first alarm button 57 and a second alarm button 58 are respectively installed on both sides of the top surface of the first limiting block 52. The first alarm button 57 and the second alarm button 58 make movable contact with the bottom surface of the corresponding connecting plate 37. When the piston rod moves, it drives the square plate 35 to move, and the movement of the square plate 35 drives the insertion piece 36 to move. 6. The connector 36 is inserted into the first square cavity 61 through the through hole 59 and contacts the locking block 62. The connector 36 presses the locking block 62 inward. When the square plate 35 moves, the square plate 35 also drives the connecting plate 37 to move. After the connecting plate 37 moves down a certain distance, it contacts the first alarm button 57. The first alarm button 57 is triggered when pressed down, issuing a first-level warning (such as a slight settlement warning) to remind the staff to pay attention to the settlement trend. When the settlement continues to increase and exceeds the threshold of the first alarm button 57, the connecting plate 37 continues to move down and presses the second alarm button 58. At this time, the device triggers a second-level warning (such as an over-limit alarm), indicating that there is a safety risk and that reinforcement or disposal measures need to be taken immediately.

[0041] It should be noted that both the first alarm button 57 and the second alarm button 58 have contacts at their bottoms, which are connected to the signal acquisition and transmission module via wires. The signal acquisition and transmission module wirelessly sends the alarm trigger signal to a computer or mobile terminal to achieve remote alarm and real-time monitoring. The above structure is a mature technology in the prior art, which is not shown in the figure and will not be described in detail here.

[0042] It should also be noted that the locking assembly 6 includes a first square cavity 61, two locking blocks 62, and two arc-shaped brake pads 63. The first square cavity 61 is located inside the first limiting block 52 and communicates with the circular hole 55. The two locking blocks 62 are slidably disposed on both sides of the first square cavity 61. Each of the two locking blocks 62 has an arc-shaped groove on the side closest to each other. The arc-shaped brake pads 63 are fixedly connected to the corresponding arc-shaped grooves and are used to lock the piston rod of the pneumatic rod 31. The tops of the two locking blocks 62 at the ends furthest from each other are arc-shaped. Multiple first springs 64 are disposed inside the first square cavity 61. The two ends of the multiple first springs 64 are fixedly connected to the side walls of the two locking blocks 62 respectively. When the locking blocks 62 move inward, the locking blocks 62 drive the arc-shaped brake pads 63 to move. The two locking blocks 62 simultaneously compress the first springs 64. When the arc-shaped brake pads 63 contact the outer wall of the piston rod, the piston rod is locked.

[0043] Furthermore, the top of the vertical plate 51 is uniformly provided with multiple insertion holes 54. The limiting component 7 includes a second square cavity 71, a square insertion block 72, and a square opening 73. The second square cavity 71 is opened inside the corresponding second limiting block 53. The square opening 73 is provided through the second square cavity 71 and communicates with the square opening 73. The vertical plate 51 is slidably connected to the corresponding square opening 73. The square insertion block 72 is slidably disposed inside the second square cavity 71. The second square cavity 71 passes through the square opening 73 and is inserted into any corresponding insertion hole 54. Multiple second springs 75 are fixedly connected to one side of the square insertion block 72. One end of each second spring 75 is fixedly connected to the side wall of the corresponding second square cavity 71. A pull rod 74 is fixedly connected in the middle, and the pull rod 74 is slidably connected to the second limiting block 53. When the second limiting block 53 needs to be adjusted, the pull rod 74 is pulled outward. A handle is installed at the end of the pull rod 74, and the operator can pull the pull rod 74 out through the handle. The movement of the pull rod 74 drives the square insert 72 to move in the second square cavity 71. The cooperation between the square insert 72 and the second square cavity 71 compresses the second spring 75. When the square insert 72 moves into the second square cavity 71 and away from the insertion hole 54, the second limiting block 53 can be moved normally. After moving to the appropriate position, the handle is released, and the second spring 75 uses its elasticity to restore the square insert 72 to its original position. The square insert 72 is inserted into the corresponding insertion hole 54 to complete the fixation of the second limiting block 53.

Claims

1. A settlement monitoring device for building foundations, comprising a mounting plate assembly (1), characterized in that: The mounting plate assembly (1) is provided with a height adjustment assembly (2), a settlement assembly (3), a numerical amplification assembly (4) and a snap-fit ​​assembly (5) on its top surface. The mounting plate assembly (1) includes a base plate (11) and four threaded rods (12). The bottom of the height adjustment assembly (2) is connected to the top surface of the base plate (11). The height adjustment assembly (2) is used to adjust the vertical height of the settlement assembly (3). The top of the height adjustment assembly (2) is connected to the bottom of the settlement assembly (3). The outer periphery of the settlement assembly (3) is connected to the bottom of the numerical amplification assembly (4). The numerical amplification assembly (4) is used to convert the settlement value of the settlement assembly (3) into a visual value for display. The top of the settlement assembly (3) is connected to the top of the snap-fit ​​assembly (5). The settling component (3) is provided with a locking component (8), which is used to lock the settling display value of the settling component (3); The settling assembly (3) includes a pneumatic rod (31), a limiting buckle (32), and a long column (33). The pneumatic rod (31) is provided with a cylinder and a piston rod. The piston rod is located at the top of the cylinder. The locking assembly (5) is provided with limiting assemblies (7) on both sides. The limiting assemblies (7) are used for locking and fixing the locking assembly (5). The locking assembly (5) is provided with a locking assembly (6) inside. The locking assembly (6) is used to lock the piston rod of the pneumatic rod (31). The limiting buckle (32) is fixed to the fixing seat at the top of the pneumatic rod (31) by bolts. A connecting rod (34) is fixedly connected to the bottom of the outer wall of the limiting buckle (32). The connecting rod (34) is used to transmit the settlement displacement. The base plate (11) has threaded holes at all four corners, and the threaded rod (12) is threadedly connected to the corresponding threaded hole. The bottom end of the threaded rod (12) is a tapered structure.

2. The settlement monitoring device for building foundations according to claim 1, characterized in that: The numerical amplification component (4) includes a connecting block (41), a semicircular plate (42), and a first rotating column (43). The connecting block (41) is fixedly connected to the outer wall of the cylinder of the pneumatic rod (31). The semicircular plate (42) is fixedly connected to the top of the connecting block (41). The first rotating column (43) is rotatably disposed in the middle of the semicircular plate (42). A short rod (44) and a long rod (45) are fixedly connected to the outer periphery of the first rotating column (43). The short rod (44) The connecting rod (34) and the long rod (45) are distributed at a 120-degree angle with the axis of the first rotating column (43). The free end of the connecting rod (34) and the top surface of the short rod (44) are engaged by a one-way push. The bottom of the semi-circular plate (42) is provided with a circular groove (46). A pointer (47) is rotatably installed inside the circular groove (46). A tension spring (48) is fixedly connected to one end of the long rod (45). One end of the tension spring (48) is fixedly connected to the side wall of the connecting block (41).

3. A settlement monitoring device for building foundations according to claim 2, characterized in that: The surface of the semicircular plate (42) and the inside of the circular groove (46) are both provided with graduations. The length of the long rod (45) is a geometric multiple of the length of the short rod (44). A second rotating column (411) and a third rotating column (412) are rotatably arranged inside the semicircular plate (42). The end of the third rotating column (412) is fixedly connected to the pointer (47). A second gear (410) is fixedly connected to the outer periphery of the second rotating column (411), and a third gear (413) is fixedly connected to the outer periphery of the third rotating column (412). The first rotating... A first gear (49) is fixedly connected to the outer periphery of the column (43). The first gear (49), the second gear (410) and the third gear (413) are all located inside the semi-circular plate (42). The first gear (49), the second gear (410) and the third gear (413) are meshed and connected in sequence. The first gear (49), the second gear (410) and the third gear (413) constitute a multi-stage amplification mechanism. The first gear (49), the second gear (410) and the third gear (413) have a geometric multiple transmission relationship.

4. A settlement monitoring device for building foundations according to claim 2, characterized in that: The locking assembly (8) includes a ratchet (81), a pawl (82), and two third springs (83). The ratchet (81) is rotatably disposed inside the semicircular plate (42). The ratchet (81) is fixedly sleeved on one end of the first rotating column (43). A square groove (85) is provided on the back of the semicircular plate (42). The pawl (82) is slidably disposed inside the square groove (85). The pawl (82) is engaged with the ratchet (81). The top ends of the two third springs (83) are fixedly connected to the bottom surface of the pawl (82). The bottom ends of the third springs (83) are fixedly connected to the bottom surface of the square groove (85). A control plate (84) is fixedly connected to the bottom of one side of the pawl (82). The control plate (84) is slidably connected to the square groove (85).

5. A settlement monitoring device for building foundations according to claim 1, characterized in that: The snap-fit ​​assembly (5) includes two vertical plates (51), a first limiting block (52), and two second limiting blocks (53). The two vertical plates (51) are respectively fixedly installed on both sides of the top surface of the base plate (11). The two second limiting blocks (53) are respectively fixedly connected to both sides of the first limiting block (52). The second limiting blocks (53) are slidably connected to the corresponding vertical plates (51). A circular hole (55) is provided in the middle of the first limiting block (52). The piston rod of the pneumatic rod (31) is located in the circular hole (55). An elastic circular scraper (56) is fixedly connected to the top of the inner wall of the circular hole (55). The elastic circular scraper (56) is in contact with the outer periphery of the piston rod of the pneumatic rod (31).

6. A settlement monitoring device for building foundations according to claim 5, characterized in that: The locking assembly (6) includes a first square cavity (61), two locking blocks (62) and two arc-shaped brake pads (63). The first square cavity (61) is opened inside the first limiting block (52) and is connected to the round hole (55). The two locking blocks (62) are slidably disposed on both sides of the first square cavity (61). The two locking blocks (62) are provided with arc-shaped grooves on the side closer to each other. The arc-shaped brake pads (63) are fixedly connected in the corresponding arc-shaped grooves. The arc-shaped brake pads (63) are used to lock the piston rod of the pneumatic rod (31). The tops of the two locking blocks (62) at the ends away from each other are arc-shaped. The first square cavity (61) is provided with a plurality of first springs (64). The two ends of the plurality of first springs (64) are fixedly connected to the side walls of the two locking blocks (62) respectively.

7. A settlement monitoring device for building foundations according to claim 5, characterized in that: The top of the vertical plate (51) is uniformly provided with multiple insertion holes (54). The limiting component (7) includes a second square cavity (71), a square insertion block (72), and a square opening (73). The second square cavity (71) is opened inside the corresponding second limiting block (53). The square opening (73) is provided through the second square cavity (71). The second square cavity (71) and the square opening (73) are connected. The vertical plate (51) is slidably connected to the corresponding square opening (73). The square insert (72) is slidably disposed inside the second square cavity (71). The second square cavity (71) passes through the square opening (73) and is inserted into the corresponding arbitrary insertion hole (54). A plurality of second springs (75) are fixedly connected to one side of the square insert (72). One end of the plurality of second springs (75) is fixedly connected to the side wall of the corresponding second square cavity (71). A pull rod (74) is fixedly connected to the middle of one side of the square insert (72). The pull rod (74) is slidably connected to the second limiting block (53).

8. A settlement monitoring device for building foundations according to claim 6, characterized in that: A square plate (35) is fixedly connected to the top of the piston rod of the pneumatic rod (31). A connector (36) is fixedly connected to the bottom surface of both sides of the square plate (35). The vertical section of the connector (36) is triangular. Through holes (59) are opened on both sides of the first limiting block (52). The through holes (59) are connected to the first square cavity (61). The connector (36) passes through the through holes (59) and is in contact with the corresponding locking block (62). A connecting plate (37) is fixedly connected to both sides of the square plate (35). A first alarm button (57) and a second alarm button (58) are respectively installed on both sides of the top surface of the first limiting block (52). The first alarm button (57) and the second alarm button (58) are in contact with the bottom surface of the corresponding connecting plate (37).

9. A settlement monitoring device for building foundations according to claim 1, characterized in that: Two long strips (33) are evenly arranged on both sides of the inner wall of the limiting buckle (32). The top two sides of the limiting buckle (32) and the long strips (33) are elastic. The top of the cylinder of the pneumatic rod (31) is fixedly connected to a damping end cap (38). The damping end cap (38) is slidably connected to the piston rod of the pneumatic rod (31). The damping end cap (38) is used to increase the movement resistance of the piston rod.

10. A settlement monitoring device for building foundations according to claim 1, characterized in that: The height adjustment assembly (2) includes a cylindrical base (21), a lead screw (22), and a sliding column (23). The cylindrical base (21) is fixedly connected to the middle of the top surface of the base plate (11). A circular groove is provided in the middle of the top surface of the cylindrical base (21). The sliding column (23) is slidably disposed inside the circular groove. The top end of the sliding column (23) is fixedly connected to the bottom end of the pneumatic rod (31). Limiting grooves are provided on both sides of the circular groove. Limiting rods matching the circular groove are fixedly connected on both sides of the sliding column (23). The limiting rods are slidably connected to the circular groove. The lead screw (22) is rotatably disposed on the bottom surface of the circular groove. A cylindrical part is provided inside the sliding column (23). Cavity (25), a limiting piece (24) is slidably arranged inside the cylindrical cavity (25), a thread hole is opened at the bottom of the sliding column (23), the thread rod (22) is connected to the thread hole, the top of the thread rod (22) is fixedly connected to the bottom surface of the limiting piece (24), the bottom of the cylindrical base (21) is provided with a first bevel gear (26) and a second bevel gear (28), the bottom end of the thread rod (22) is fixedly connected to the first bevel gear (26), an adjusting rod (27) is rotatably arranged on one side of the cylindrical base (21), the end of the adjusting rod (27) is fixedly connected to the second bevel gear (28), and the first bevel gear (26) and the second bevel gear (28) are meshed.

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