A foundation settlement detection device

Abstract

The present invention belongs to the technical field of foundation settlement detection, and specifically relates to a foundation settlement detection device, comprising a protective tube, the interior of which is equipped with a measuring mark capable of synchronously moving with the foundation, a protective box fixed to the upper end of the protective tube, the upper end of the measuring mark extending into the interior of the protective box, a linkage column fixed to the upper end of the measuring mark, a positioning sleeve fixed to the upper end of the interior of the protective box, the linkage column and the positioning sleeve being slidably connected, and an electrical chamber being provided at the upper end of the interior of the protective box. The present invention adjusts the distance between a first electrode element and a second electrode element, so that when the first electrode element and the second electrode element come into contact, a total amount warning circuit changes from an open state to a closed state and notifies a staff member, thereby achieving automatic monitoring and avoiding the lag of settlement information. At the same time, the foundation settlement rate can also be monitored, reducing installation costs, construction difficulty, and maintenance difficulty.

Description

Technical Field

[0001] The present invention belongs to the technical field of foundation settlement detection, and in particular relates to a foundation settlement detection device. Background Art

[0002] In the fields of construction and civil engineering, monitoring the settlement of the foundations of buildings and infrastructure is an important part of ensuring structural safety and preventing catastrophic damage. Foundation settlement refers to the vertical drop in the position of a building or natural ground due to various reasons (such as changes in soil quality, changes in groundwater levels, changes in load, etc.). If the settlement exceeds a certain range, it may cause structural cracks, tilts, or even collapses, resulting in significant economic losses and safety hazards. Therefore, during the construction of a building, it is necessary to regularly monitor the total amount of foundation settlement and the rate of settlement. Existing foundation settlement detection methods mainly include the following types: leveling method, GNSS measurement method, etc. The above methods can accurately monitor the total amount of foundation settlement and the rate of settlement. However, the above detection methods still have the following problems in the actual detection process:

[0003] 1. Leveling uses a level to determine the elevation change of measurement points placed on the building foundation relative to a fixed reference point. Although this method is simple and inexpensive, it has some significant drawbacks: First, leveling is time-consuming and labor-intensive, requiring frequent on-site visits by professionals, and cannot achieve automated monitoring. Second, the data update frequency is low, and it cannot provide real-time settlement information, resulting in a delayed response to sudden foundation changes.

[0004] 2. GNSS measurement methods based on electronics and network communications, utilizing technologies such as fiber optic sensing, wireless sensor networks, and GPS monitoring, can achieve remote, real-time settlement monitoring. However, these systems are expensive to install and require a continuous power supply to ensure stable operation of sensors and network equipment. This requires the installation of power lines and network equipment at the construction site, making installation difficult and maintenance costly, especially in complex terrain or on existing structures.

[0005] Based on the above problems, this application document proposes a foundation settlement detection device to improve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a foundation settlement detection device. By adjusting the distance between the first electrode element and the second electrode element, after the first electrode element and the second electrode element come into contact, the total amount warning circuit is changed from an open state to a closed state and the staff is notified. There is no need for the staff to frequently detect the total amount of foundation settlement, thereby realizing automatic monitoring and avoiding the lag of settlement information. At the same time, through the cooperation of the third electrode element and the fourth electrode element, the foundation settlement rate can also be monitored, reducing the installation cost, construction difficulty and maintenance difficulty.

[0007] The technical solutions adopted by the present invention are as follows:

[0008] A foundation settlement detection device includes a protective tube, wherein a measuring mark capable of synchronously moving with the foundation is mounted inside the protective tube, a protective box is fixed to the upper end of the protective tube, and the upper end of the measuring mark extends into the interior of the protective box, a linkage column is fixed to the upper end of the measuring mark, a positioning sleeve is fixed to the upper end of the interior of the protective box, and the linkage column and the positioning sleeve are slidably connected, an electrical cavity is defined at the upper end of the interior of the protective box, an energy storage element and a circuit board are fixed inside the electrical cavity, and the energy storage element and the circuit board are electrically connected, and further comprises:

[0009] Multiple first warning units, each of which is assembled between a linkage column and a positioning sleeve, each of which includes a first electrode element and a second electrode element, the first electrode element being assembled to an outer wall of the linkage column, and the second electrode element being assembled to an inner wall of the positioning sleeve, the first electrode element and the circuit board being electrically connected as well as the second electrode element and the circuit board via wires, and the first electrode element, the second electrode element, and the circuit board within the same first warning unit forming a total amount warning circuit;

[0010] a second warning part, the second warning part being assembled inside the linkage column;

[0011] In the initial state, the total amount warning circuit is in an open state. When the total amount of foundation settlement reaches the maximum allowable safety value, the total amount warning circuit changes from an open state to a closed state.

[0012] In a preferred embodiment, the inner wall of the positioning sleeve is provided with a plurality of guide limit grooves, and the plurality of guide limit grooves are matched one by one with the plurality of first warning parts. The first warning part also includes a first base, a second base, a screw and a knob. The first base is fixed to the outer wall of the linkage column, and the first electrode element is fixed to one end of the first base close to the positioning sleeve. The second base is slidably connected to the inside of the guide limit groove, the second electrode element is fixed to one end of the second base close to the linkage column, the screw is threadedly connected to the inside of the second base, and the screw and the positioning sleeve are rotatably connected, and the knob is fixed to the lower end of the screw.

[0013] In a preferred embodiment, a plurality of avoidance grooves are provided on the side wall of the positioning sleeve, a plurality of scale marks are evenly arranged on the outside of the positioning sleeve, a first pointer is fixed on one end of the first base close to the scale mark, a second pointer is fixed on one end of the second base close to the scale mark, and one end of the first pointer and the second pointer both pass through the avoidance grooves and extend to the outside of the positioning sleeve, and the first pointer and the scale mark, as well as the second pointer and the scale mark, are adapted to each other.

[0014] In a preferred embodiment, the first base and the second base are both made of insulating materials.

[0015] In a preferred embodiment, the second warning part includes a driving element, a threaded shaft, an annular plate, a third electrode element, a linkage sleeve and a fourth electrode element. The driving element is fixed inside the electrical cavity, and the driving element and the circuit board are electrically connected through a wire. The threaded shaft is fixed to the output end of the driving element, the annular plate is fixed to the upper end of the linkage column, the third electrode element is fixed to the inside of the annular plate, the linkage sleeve is slidably connected to the inside of the third electrode element, and the linkage sleeve and the threaded shaft are threadedly connected. The fourth electrode element is fixed to the lower end of the linkage sleeve. The third electrode element and the linkage sleeve correspond to each other, and the third electrode element and the circuit board, as well as the linkage sleeve and the circuit board, are electrically connected through a wire. The third electrode element, the linkage sleeve and the circuit board form a rate warning circuit. In the initial state, the rate warning circuit is in a disconnected state.

[0016] In a preferred solution, a distance sensor is fixed to the upper end of the linkage sleeve, the distance sensor is adapted to the annular plate, and the distance sensor is electrically connected to the circuit board via a wire.

[0017] In a preferred embodiment, a rotation-stopping surface is provided on the inner wall of the third electrode element, and a chamfered surface is provided on the outer side of the linkage sleeve, and the rotation-stopping surface and the chamfered surface are matched with each other.

[0018] In a preferred embodiment, an antenna and a solar panel are fixed to the upper end of the protective box, and the energy storage element and the solar panel, as well as the antenna and the circuit board are electrically connected.

[0019] The technical effects achieved by the present invention are:

[0020] The present invention adjusts the distance between the first electrode element and the second electrode element according to the maximum safe value allowed for foundation settlement by rotating a screw rod with a knob. When the total amount of foundation settlement reaches the maximum safe value, the first electrode element and the second electrode element come into contact, and the total amount warning circuit switches from an open state to a closed state. A signal is sent through the circuit board to notify the staff, so that the device can automatically send a signal after the total amount of foundation settlement reaches the maximum safe value. There is no need for staff to frequently detect the total amount of foundation settlement, automatic monitoring can be achieved, and the hysteresis of settlement information can be effectively avoided.

[0021] The present invention sets a timing cycle through a circuit board. At the beginning of each timing cycle, a driving element is activated to drive a threaded shaft to rotate. The threaded shaft drives a linkage sleeve and a third electrode element to move. In conjunction with a distance sensor, the device can adjust the distance between the third electrode element and the fourth electrode element according to a preset value. When the settlement of the ground within a timing cycle reaches a preset value, the third electrode element and the fourth electrode element come into contact, the rate warning circuit changes from an open state to a closed state, and a signal is sent through the circuit board to notify staff, so that the device can monitor the foundation settlement rate. This eliminates the need for staff to frequently visit the site for measurements, thereby reducing the workload of staff.

[0022] The present invention converts solar energy into electrical energy through solar panels and stores it inside the energy storage element. The energy storage element provides electrical energy for the operation of the device, and signals are transmitted through the antenna. Therefore, during the use of the device, there is no need to lay power supply lines and network equipment on a large scale, which reduces installation costs, construction difficulty and maintenance difficulty. At the same time, the device also has the advantages of low energy consumption and easy maintenance. It can be used in complex environments, which increases the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 It is a schematic diagram of the structure inside the electrical cavity of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the linkage column and the positioning sleeve of the present invention;

[0026] Figure 4 This invention Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0027] Figure 5 This is a structural cross-sectional view of the linkage column and positioning sleeve of the present invention;

[0028] Figure 6 This invention Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 7 It is a structural diagram of the first early warning unit of the present invention;

[0030] Figure 8 It is a partial structural cross-sectional view of the first warning unit of the present invention;

[0031] Figure 9 This is a schematic diagram of the explosion structure of the first early warning unit of the present invention;

[0032] Figure 10 It is a structural diagram of the second early warning unit of the present invention;

[0033] Figure 11 It is a partial structural cross-sectional view of the second warning unit of the present invention;

[0034] Figure 12 It is a schematic diagram of the explosion structure of the second early warning unit of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 100, protective tube; 101, measuring mark; 102, protective box; 103, linkage column; 104, positioning sleeve; 105, energy storage element; 106, antenna; 107, solar panel; 108, marker foot; 109, guide limit groove;

[0037] 200, First Early Warning Department;

[0038] 201, first electrode element; 202, second electrode element; 203, first base; 204, second base; 205, screw; 206, knob; 207, first pointer; 208, second pointer;

[0039] 300, Second Early Warning Department;

[0040] 301, driving element; 302, threaded shaft; 303, annular plate; 304, third electrode element; 305, linkage sleeve; 306, fourth electrode element; 307, distance sensor. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0044] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0045] Please see the attached Figures 1 to 6 The figure shows a first embodiment of the present invention, which provides a foundation settlement detection device, including a protective tube 100, wherein a measuring mark 101 capable of synchronously moving with the foundation is mounted inside the protective tube 100, a protective box 102 is fixed to the upper end of the protective tube 100, and the upper end of the measuring mark 101 extends into the interior of the protective box 102, a linkage column 103 is fixed to the upper end of the measuring mark 101, a positioning sleeve 104 is fixed to the upper end of the interior of the protective box 102, and the linkage column 103 and the positioning sleeve 104 are slidably connected, an electrical cavity is defined at the upper end of the interior of the protective box 102, an energy storage element 105 and a circuit board (not shown) are fixed inside the electrical cavity, and the energy storage element 105 and the circuit board are electrically connected, a marker foot 108 is fixed to the lower end of the measuring mark 101, and further comprising:

[0046] Multiple first warning units 200, all of which are assembled between the linkage column 103 and the positioning sleeve 104, and the first warning unit 200 includes a first electrode element 201 and a second electrode element 202. The first electrode element 201 is assembled on the outer wall of the linkage column 103, and the second electrode element 202 is assembled on the inner wall of the positioning sleeve 104. The first electrode element 201 and the second electrode element 202 are adapted to each other. The first electrode element 201 and the circuit board, as well as the second electrode element 202 and the circuit board, are electrically connected via wires. The first electrode element 201, the second electrode element 202, and the circuit board located within the same first warning unit 200 constitute a total warning circuit. In the initial state, the first electrode element 201 is located at the upper end of the second electrode element 202.

[0047] The second warning unit 300 is assembled inside the linkage column 103;

[0048] Among them, in the initial state, the total amount warning circuit is in the disconnected state. When the total amount of foundation settlement reaches the maximum allowable safety value, the total amount warning circuit changes from the disconnected state to the closed state.

[0049] In this embodiment, drilling is carried out after the measuring point position is accurately staked out. The drilling depth should pass through the soft soil layer and be greater than the thickness of the foundation compression layer, up to the bedrock. The protective tube 100 is placed inside the borehole until the bottom of the protective tube 100 contacts the foundation, and the inserted marker is pressed into the foundation. The protective tube 100 is then lifted upward by 0.5m, and sand is poured into the borehole to complete the installation of the device. When the foundation settles, the foundation drives the marker foot 108 to move downward synchronously. The marker foot 108 is fixedly connected to the measuring marker 101, so that the marker foot 108 drives the measuring marker 101 to move. The measuring marker 101 is fixedly connected to the linkage column 103, so that the measuring marker 101 drives the linkage column 103 to move. Due to the first The electrode element 201 is assembled on the outer wall of the linkage column 103, and the first electrode element 201 is driven to move downward by the linkage column 103. When the total amount of foundation settlement reaches the maximum allowable safety value, the first electrode element 201 and the second electrode element 202 are in contact, and the total amount warning circuit changes from an open state to a closed state. A signal is sent through the circuit board, and the staff can know that the total amount of foundation settlement has reached the maximum allowable safety value. Through the above-mentioned scheme, the device can automatically send a signal after the total amount of foundation settlement reaches the maximum safety value. There is no need for staff to monitor the total amount of foundation settlement from time to time. Automatic monitoring can be achieved, and the lag of settlement information can be effectively avoided.

[0050] Next, please refer to Figures 5 to 9As shown, the inner wall of the positioning sleeve 104 is provided with a plurality of guide limit grooves 109, and the plurality of guide limit grooves 109 are adapted one by one to the plurality of first warning parts 200. The first warning part 200 further includes a first base 203, a second base 204, a screw 205 and a knob 206. The first base 203 is fixed to the outer wall of the linkage column 103, and the first electrode element 201 is fixed to one end of the first base 203 close to the positioning sleeve 104. The second base 204 is slidably connected to the inside of the guide limit groove 109, and the materials of the first base 203 and the second base 204 are both The second electrode element 202 is made of insulating material, and is fixed to one end of the second base 204 near the linkage column 103. The screw 205 is threadedly connected to the inside of the second base 204, and the screw 205 and the positioning sleeve 104 are rotatably connected. The knob 206 is fixed to the lower end of the screw 205 and is located at the lower end of the positioning sleeve 104. A plurality of anti-slip grooves are evenly arranged on the outside of the knob 206. The maximum safe value allowed for foundation settlement is recorded as H1. In the initial state, the vertical distance between the first electrode element 201 and the second electrode element 202 is recorded as H2, and H1=H2.

[0051] In this embodiment, when installing the device, the knob 206 is rotated according to the maximum safety value allowed for foundation settlement. Through the fixed connection between the knob 206 and the screw 205, the knob 206 drives the screw 205 to rotate. Through the threaded connection between the screw 205 and the second base 204, the screw 205 drives the second base 204 to move in the vertical direction. Through the fixed connection between the second base 204 and the second electrode element 202, the second base 204 drives the second electrode element 202 to move. Then, according to the maximum safety value allowed for foundation settlement, the distance between the first electrode element 201 and the second electrode element 202 is adjusted, so that the device can be applied to different construction projects.

[0052] It should be noted that the maximum allowable safe value of foundation settlement needs to be comprehensively determined based on the building type, building height and geological factors. The specific value can be calculated in accordance with the provisions of the current national standard "Code for Design of Building Foundations" (GB50007-2011).

[0053] Secondly, please also refer to Figure 4 、 Figure 7 and Figure 9The side wall of the positioning sleeve 104 is provided with a plurality of avoidance grooves, and a plurality of scale marks are evenly arranged on the outside of the positioning sleeve 104. A first pointer 207 is fixed to one end of the first base 203 close to the scale mark, and a second pointer 208 is fixed to one end of the second base 204 close to the scale mark. One end of the first pointer 207 and the second pointer 208 both pass through the avoidance grooves and extend to the outside of the positioning sleeve 104, and the first pointer 207 and the scale mark as well as the second pointer 208 and the scale mark are adapted to each other.

[0054] It should be noted that the end of the second base 204 away from the first pointer 207 is in contact with the inner wall of the guide limit groove 109. The guide limit groove 109 can prevent the second base 204 from rotating relative to each other during the movement. At the same time, a gap is reserved between the end of the second base 204 close to the first pointer 207 and the guide limit groove 109, and the first pointer 207 can pass through the gap (that is, when the foundation settles and drives the measuring mark 101, the linkage column 103, the first electrode element 201, the first base 203 and the first pointer 207 to move downward, the second base 204 will not hinder the first pointer 207).

[0055] In this embodiment, after the device is installed, the initial position of the first electrode element 201 can be reflected by the first pointer 207. When the knob 206 is turned to adjust the distance between the first electrode element 201 and the second electrode element 202, the second base 204 is driven to move inside the guide limit groove 109 by the knob 206. The second base 204 and the second pointer 208 are fixedly connected, so that the second base 204 drives the second pointer 208 to move. By reading the scale mark corresponding to the second pointer 208 and the scale mark corresponding to the first pointer 207, the distance between the first electrode element 201 and the second electrode element 202 can be calculated, thereby facilitating the staff to quickly and accurately adjust the distance between the first electrode element 201 and the second electrode element 202 according to the maximum safety value allowed by different foundation settlements.

[0056] Furthermore, since foundation settlement detection is a continuous and long process, during the construction and subsequent commissioning of the building, the foundation settlement needs to be detected at different stages, such as the initial settlement stage, the primary consolidation settlement stage, and the secondary consolidation settlement stage. In this embodiment, multiple first warning units 200 are used to monitor foundation settlement at different stages, and in the multiple first warning units 200, the value of H1 is adjusted according to the allowable amount of foundation settlement at different stages.

[0057] Please refer again Figures 10 to 12The second warning unit 300 includes a driving element 301, a threaded shaft 302, an annular plate 303, a third electrode element 304, a linkage sleeve 305 and a fourth electrode element 306. The driving element 301 is fixed inside the electrical cavity, and the driving element 301 and the circuit board are electrically connected through a wire. The threaded shaft 302 is fixed to the output end of the driving element 301, the annular plate 303 is fixed to the upper end of the linkage column 103, the third electrode element 304 is fixed inside the annular plate 303, and the linkage sleeve 305 is slidable. The fourth electrode element 306 is fixed to the lower end of the interior of the linkage sleeve 305. The third electrode element 304 and the linkage sleeve 305 correspond to each other, and the third electrode element 304 and the circuit board as well as the linkage sleeve 305 and the circuit board are electrically connected through wires. The third electrode element 304, the linkage sleeve 305 and the circuit board form a rate warning circuit. In the initial state, the rate warning circuit is in a disconnected state.

[0058] Here, the material of the annular plate 303 and the linkage sleeve 305 is an insulating material, and the driving element 301 is a servo motor. The servo motor has the advantages of high precision, strong stability, and good timeliness. It can accurately adjust the position of the linkage sleeve 305, thereby achieving the purpose of accurately regulating the distance between the third electrode element 304 and the fourth electrode element 306. Specifically, the servo motor is an existing mature application and will not be further elaborated here.

[0059] Furthermore, the fourth electrode element 306 is an existing mature application, which at least includes a sleeve, a thimble and an elastic element. The sleeve is fixed to the lower end of the linkage sleeve 305, and the thimble is slidably connected to the inside of the sleeve. In the initial state, the elastic element is in a compressed state, and the elastic element is assembled between the sleeve and the thimble. When the daily settlement of the foundation is greater than the preset value, the annular plate 303 drives the third electrode element 304 to squeeze the thimble and compress the elastic element, thereby preventing the thimble from being squeezed and damaged.

[0060] It should be noted that a timing module is integrated in the circuit board, and timing can be performed through the timing module. The unit of each timing cycle can be any one of the following units: hours, days, months, and years, and can also be adjusted according to actual needs. Specifically, in this embodiment, in order to achieve the purpose of monitoring the foundation settlement rate, the unit of the timing cycle is day (i.e. 24 hours), which does not constitute a specific limitation here.

[0061] In this embodiment, a timing cycle is set. At the beginning of each timing cycle, the circuit board activates the driving element 301, causing the output end of the driving element 301 to rotate. The driving element 301 and the threaded shaft 302 are fixedly connected, so that the driving element 301 drives the threaded shaft 302 to rotate. The threaded shaft 302 and the annular plate 303 are threadedly connected, so that the threaded shaft 302 drives the annular plate 303 to move. The linkage sleeve 305 and the fourth electrode element 306 are fixedly connected, so that the linkage sleeve 305 drives the fourth electrode element 306 to move, thereby adjusting the distance between the fourth electrode element 306 and the third electrode element 304. Distance. When the foundation settles, the foundation drives the measuring mark 101 and the linkage column 103 to move. Through the fixed connection between the linkage column 103 and the annular plate 303, the linkage column 103 drives the annular plate 303 to move. Through the fixed connection between the annular plate 303 and the third electrode element 304, the annular plate 303 drives the third electrode element 304 to move downward. When the annular plate 303 and the fourth electrode element 306 come into contact, the rate warning circuit changes from an open state to a closed state, and a signal is sent through the circuit board. The staff can then know that the daily settlement of the foundation has reached the preset value. At the same time, the current timing cycle ends and enters the next timing cycle.

[0062] It should be noted that the daily settlement of the foundation refers to the total amount of foundation settlement within a timing period, and also represents the rate of foundation settlement; the preset value refers to the maximum allowable safe value of the daily settlement of the foundation, and the preset value can be set through the circuit board.

[0063] Furthermore, in this embodiment, if the third electrode element 304 and the fourth electrode element 306 are not in contact when the current timing cycle ends (i.e., the rate warning circuit is still in the disconnected state), the next timing cycle is entered; if the third electrode element 304 and the fourth electrode element 306 are in contact before the current timing cycle ends (i.e., the rate warning circuit changes from the disconnected state to the closed state), a signal is sent through the circuit board, and the current timing cycle ends immediately, and the next timing cycle is entered.

[0064] Please refer again Figures 10 to 12 A distance sensor 307 is fixed to the upper end of the linkage sleeve 305 . The distance sensor 307 is adapted to the annular plate 303 , and the distance sensor 307 is electrically connected to the circuit board through a wire.

[0065] In this embodiment, at the beginning of each timing cycle, the position of the annular plate 303 is monitored by the distance sensor 307, and the position of the linkage sleeve 305 is adjusted according to the position of the annular plate 303, thereby adjusting the distance between the third electrode element 304 and the fourth electrode element 306, so that at the beginning of each timing cycle, the distance between the third electrode element 304 and the fourth electrode element 306 is equal to the preset value.

[0066] In a specific embodiment, Figure 12 As shown, the cross-section of the linkage sleeve 305 is an I-shape. The maximum movable stroke of the linkage sleeve 305 inside the annular plate 303 is recorded as L1, the vertical distance from the upper end of the annular plate 303 to the lower end of the third electrode element 304 is recorded as L2, the maximum safety value (i.e., the preset value) allowed by the foundation within a timing cycle is recorded as L3, the distance from the upper end of the fourth electrode element 306 to the lower end of the interior of the linkage sleeve 305 is recorded as L4, and the distance from the upper end of the third electrode element 304 to the upper end of the interior of the linkage sleeve 305 is recorded as L5. Among them, L1, L2, and L4 are fixed values, and L3 needs to be set according to the detection standard, L5=L1-L2-L3-L4. The distance between the upper end of the annular plate 303 and the upper end of the interior of the third electrode element 304 is detected by the distance sensor 307. When the distance reaches L5, the driving element 301 is turned off. At this time, the distance between the third electrode element 304 and the fourth electrode element 306 reaches L3.

[0067] Please refer again Figure 12 The inner wall of the third electrode element 304 is provided with a rotation-stopping surface, and the outer side of the linkage sleeve 305 is provided with a chamfered surface, and the rotation-stopping surface and the chamfered surface are adapted to each other.

[0068] In this embodiment, the cooperation of the anti-rotation surface and the chamfered surface can prevent the linkage sleeve 305 from rotating relative to the annular plate 303 during the process of the threaded shaft 302 driving the linkage sleeve 305 to move, causing the third electrode element 304 and the fourth electrode element 306 to be misaligned and unable to contact.

[0069] Please refer again Figure 1 and Figure 2 As shown, an antenna 106 and a solar panel 107 are fixed to the upper end of the protective box 102 , and the energy storage element 105 and the solar panel 107 as well as the antenna 106 and the circuit board are electrically connected.

[0070] It should be noted that a remote server is also used in conjunction with the device, and the remote server and the antenna 106 are connected via wireless signals, and the remote server exchanges data with the circuit board via the antenna 106 .

[0071] In this embodiment, the solar panel 107 is provided to convert solar energy into electrical energy and store it inside the energy storage element 105, thereby providing electrical energy for the operation of the device; the antenna 106 is provided to transmit the signal sent by the circuit board to the remote service end, without the need for large-scale layout of power supply lines and network equipment, thereby reducing installation costs, construction difficulty and maintenance difficulty. At the same time, the first early warning unit 200 and the second early warning unit 300 are both provided on the ground. The device also has the advantages of low energy consumption and easy maintenance, and can be used in complex environments, thereby increasing the scope of application of the device.

[0072] It should be noted that when the total amount of foundation settlement and the foundation settlement rate of this device are both within a safe range, the circuit board is in standby mode and other components do not consume electrical energy; when the total amount warning circuit is closed, the circuit board changes from standby mode to working mode, and sends a signal through the antenna 106. After the signal is sent, it changes from working mode to standby mode; when the rate warning circuit is closed, the circuit board changes from standby mode to working mode, and sends a signal through the antenna 106. The timing module enters the next timing cycle and starts the driving element 301 to adjust the distance between the third electrode element 304 and the fourth electrode element 306. After the adjustment is completed, it changes from working mode to standby mode; in the above process, the power consumption is relatively small, and the power converted by the solar panel 107 and stored in the energy storage element 105 can meet the power consumption of the device and provide power for the stable operation of the device.

[0073] The working principle of the present invention is:

[0074] After the device is installed at the measuring point, when monitoring the total amount of foundation settlement, the knob 206 is turned to adjust the distance between the first electrode element 201 and the second electrode element 202 according to the maximum safety value allowed for the foundation settlement. When the foundation settles, the foundation drives the solar panel 107 to move downward synchronously, so that the solar panel 107 drives the measuring mark 101, the linkage column 103 and the first electrode element 201 to move downward synchronously. When the total amount of foundation settlement reaches the maximum safety value allowed, the first electrode element 201 and the second electrode element 202 are in contact, and the total amount warning circuit changes from an open state to a closed state. The circuit board sends a signal through the antenna 106, and the staff can know that the total amount of foundation settlement has reached the maximum safety value allowed. When monitoring the foundation settlement rate, the preset value and timing cycle are set by the circuit board to start the drive. Element 301 adjusts the distance between the third electrode element 304 and the fourth electrode element 306 according to the preset value. Within a single timing cycle, if the foundation settlement rate reaches the preset value, the third electrode element 304 and the fourth electrode element 306 are in contact, and the rate warning circuit changes from an open state to a closed state. The circuit board sends a signal through the antenna 106, and the staff can know that the foundation settlement rate has reached the maximum allowable safety value. There is no need for the staff to detect the total amount of foundation settlement from time to time. Automatic monitoring can be achieved and the lag of settlement information can be effectively avoided. At the same time, the device consumes less energy. The solar panel 107 converts solar energy into electrical energy and stores it in the energy storage element 105, which can meet the power demand of the device operation, so that the device does not need to lay power supply lines and network equipment on a large scale, reducing construction costs and maintenance difficulties.

[0075] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A foundation settlement detection device, characterized in that: The invention comprises a protective tube (100), wherein a measuring mark (101) capable of synchronously moving with the foundation is assembled inside the protective tube (100), a protective box (102) is fixed to the upper end of the protective tube (100), and the upper end of the measuring mark (101) extends into the interior of the protective box (102), a linkage column (103) is fixed to the upper end of the measuring mark (101), a positioning sleeve (104) is fixed to the upper end of the interior of the protective box (102), and the linkage column (103) and the positioning sleeve (104) are slidably connected, an electrical cavity is opened at the upper end of the interior of the protective box (102), an energy storage element (105) and a circuit board are fixed inside the electrical cavity, and the energy storage element (105) and the circuit board are electrically connected, and further comprises: A plurality of first warning units (200), wherein the plurality of first warning units (200) are all assembled between the linkage column (103) and the positioning sleeve (104), wherein the first warning unit (200) comprises a first electrode element (201) and a second electrode element (202), wherein the first electrode element (201) is assembled on the outer wall of the linkage column (103), and the second electrode element (202) is assembled on the inner wall of the positioning sleeve (104), wherein the first electrode element (201) and the circuit board, and the second electrode element (202) and the circuit board are electrically connected via a wire, and the first electrode element (201), the second electrode element (202) and the circuit board located within the same first warning unit (200) form a total warning circuit, and the plurality of first warning units (200) are respectively used to monitor foundation settlement at different stages; The second warning part (300) is assembled inside the linkage column (103). The second warning part (300) includes a driving element (301), a threaded shaft (302), an annular plate (303), a third electrode element (304), a linkage sleeve (305) and a fourth electrode element (306). The driving element (301) is fixed inside the electrical cavity, and the driving element (301) and the circuit board are electrically connected through a wire. The threaded shaft (302) is fixed to the output end of the driving element (301), the annular plate (303) is fixed to the upper end inside the linkage column (103), the third electrode element (304) is fixed inside the annular plate (303), and the linkage sleeve (305) slides The fourth electrode element (306) is fixed to the lower end of the interior of the linkage sleeve (305), the third electrode element (304) and the linkage sleeve (305) correspond to each other, and the third electrode element (304) and the circuit board, as well as the linkage sleeve (305) and the circuit board, are electrically connected via wires. The third electrode element (304), the linkage sleeve (305) and the circuit board form a rate warning circuit. In an initial state, the rate warning circuit is in an off state. If the third electrode element (304) and the fourth electrode element (306) are in contact, the current timing cycle ends immediately and enters the next timing cycle. In the initial state, the total amount warning circuit is in an open state. When the total amount of foundation settlement reaches the maximum allowable safety value, the total amount warning circuit changes from an open state to a closed state.

2. A foundation settlement detection device according to claim 1, characterized in that: The inner wall of the positioning sleeve (104) is provided with a plurality of guide limit grooves (109), and the plurality of guide limit grooves (109) are adapted to the plurality of first warning parts (200) one by one. The first warning part (200) further comprises a first base (203), a second base (204), a screw (205) and a knob (206). The first base (203) is fixed to the outer wall of the linkage column (103), and the first electrode element (201) is fixed to the first base ( 203) is close to one end of the positioning sleeve (104), the second base (204) is slidably connected to the inside of the guide limit groove (109), the second electrode element (202) is fixed to one end of the second base (204) close to the linkage column (103), the screw (205) is threadedly connected to the inside of the second base (204), and the screw (205) and the positioning sleeve (104) are rotatably connected, and the knob (206) is fixed to the lower end of the screw (205).

3. A foundation settlement detection device according to claim 2, characterized in that: The side wall of the positioning sleeve (104) is provided with a plurality of avoidance slots, and the outer side of the positioning sleeve (104) is evenly provided with a plurality of scale marks. A first pointer (207) is fixed to one end of the first base (203) close to the scale mark, and a second pointer (208) is fixed to one end of the second base (204) close to the scale mark. One end of each of the first pointer (207) and the second pointer (208) passes through the avoidance slots and extends to the outside of the positioning sleeve (104), and the first pointer (207) and the scale mark, as well as the second pointer (208) and the scale mark, are adapted to each other.

4. A foundation settlement detection device according to claim 2, characterized in that: The first base (203) and the second base (204) are both made of insulating materials.

5. The foundation settlement detection device according to claim 1, characterized in that: A distance sensor (307) is fixed to the upper end of the linkage sleeve (305), the distance sensor (307) is adapted to the annular plate (303), and the distance sensor (307) is electrically connected to the circuit board via a wire.

6. The foundation settlement detection device according to claim 1, characterized in that: The inner wall of the third electrode element (304) is provided with a rotation-stopping surface, and the outer side of the linkage sleeve (305) is provided with a chamfered surface, and the rotation-stopping surface and the chamfered surface are adapted to each other.

7. The foundation settlement detection device according to claim 1, characterized in that: An antenna (106) and a solar panel (107) are fixed to the upper end of the protection box (102), and the energy storage element (105) and the solar panel (107) as well as the antenna (106) and the circuit board are all electrically connected.

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