Foundation settlement detection device

Abstract

The invention belongs to the technical field of foundation settlement detection, and particularly relates to a foundation settlement detection device which comprises a protection pipe, a measuring mark capable of synchronously moving along with a foundation is assembled in the protection pipe, a protection box is fixed to the upper end of the protection pipe, and the upper end of the measuring mark extends into the protection box. A linkage column body is fixed at the upper end of the measuring mark, a positioning sleeve is fixed at the upper end in the protection box, the linkage column body is in sliding connection with the positioning sleeve, and an electric cavity is formed in the upper end in the protection box. By adjusting the distance between the first electrode element and the second electrode element, after the first electrode element is in contact with the second electrode element, the total quantity early warning circuit is converted into a closed state from an open state and informs a worker, automatic monitoring is achieved, hysteresis of settlement information is avoided, and meanwhile the safety of the worker is improved. And the settlement rate of the foundation can be monitored, and the installation cost, the construction difficulty and the maintenance difficulty are reduced.

Description

Technical Field

[0001] The 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 collapse, causing significant economic losses and safety hazards. Therefore, during the construction of construction projects, it is necessary to regularly monitor the total amount of foundation settlement and the settlement rate. Existing foundation settlement detection methods mainly include the following types: leveling, GNSS measurement, etc. The above methods can accurately monitor the total amount of foundation settlement and the settlement rate. However, the above detection methods still have the following problems in the actual detection process: 1. The leveling method uses a level to measure the elevation change of the measuring point arranged on the building foundation relative to the fixed reference point. Although this method is simple and low-cost, it has some obvious shortcomings: first, the leveling method is time-consuming and labor-intensive, requiring professionals to frequently go to the site for measurement, and cannot achieve automatic monitoring; second, the data update frequency is low, and it cannot provide real-time settlement information, and it is slow to respond to sudden foundation changes; 2. GNSS measurement based on electronic technology and network communication, using technologies such as fiber optic sensing, wireless sensor networks, GPS monitoring, etc., can achieve remote and real-time settlement monitoring. However, the installation cost of such systems is high, and continuous power supply is required to ensure the stable operation of sensors and network equipment. Power supply lines and network equipment need to be laid at the construction site, which is difficult to construct and has high maintenance costs, especially in complex terrain or built structures.

[0003] Based on the above problems, this application document proposes a foundation settlement detection device to improve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a foundation settlement detection device. By adjusting the distance between a first electrode element and a 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.

[0005] The technical solution adopted by the present invention is as follows: A foundation settlement detection device comprises a protection tube, wherein a measuring mark capable of synchronously moving with the foundation is installed inside the protection tube, a protection box is fixed to the upper end of the protection tube, and the upper end of the measuring mark extends into the protection 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 protection box, and the linkage column and the positioning sleeve are slidably connected, an electrical cavity is opened at the upper end of the protection 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: A plurality of first warning parts, each of which is assembled between a linkage column and a positioning sleeve, wherein the first warning part comprises a first electrode element and a second electrode element, wherein the first electrode element is assembled on an outer wall of the linkage column, and the second electrode element is assembled on an inner wall of the positioning sleeve, wherein the first electrode element and the circuit board as well as the second electrode element and the circuit board are electrically connected via a wire, and a total amount warning circuit is formed between the first electrode element, the second electrode element and the circuit board located inside the same first warning part; A second warning part, the second warning part is assembled inside the linkage column; Wherein, in the initial state, the total amount warning circuit is in an open state, and when the total amount of foundation settlement reaches the maximum allowable safe value, the total amount warning circuit changes from an open state to a closed state.

[0006] 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.

[0007] In a preferred embodiment, a plurality of avoidance grooves are formed on the side wall of the positioning sleeve, a plurality of scale marks are evenly arranged on the outer side of the positioning sleeve, a first pointer is fixed to one end of the first base close to the scale mark, a second pointer is fixed to 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.

[0008] In a preferred embodiment, the first base and the second base are both made of insulating materials.

[0009] 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, and in the initial state, the rate warning circuit is in a disconnected state.

[0010] In a preferred solution, a distance sensor is fixed to the upper end of the linkage sleeve, the distance sensor is matched with the annular plate, and the distance sensor is electrically connected to the circuit board through a wire.

[0011] 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.

[0012] 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.

[0013] The technical effects achieved by the present invention are: 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 the 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 are in contact, and the total amount warning circuit is changed from an open state to a closed state. A signal is sent through a 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. The staff does not need to frequently detect the total amount of foundation settlement, and automatic monitoring can be achieved, and the hysteresis of settlement information can be effectively avoided. The present invention sets a timing cycle through a circuit board. At the beginning of each timing cycle, a driving element is started and a threaded shaft is driven to rotate. The threaded shaft drives the linkage sleeve and the third electrode element to move. The distance sensor cooperates to enable the device to adjust the distance between the third electrode element and the fourth electrode element according to a preset value. When the settlement amount of the foundation in a timing cycle reaches a preset value, the third electrode element and the fourth electrode element are in contact, and the rate warning circuit is changed 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 monitor the foundation settlement rate, without the need for the staff to frequently go to the site for measurement, thereby reducing the workload of the staff. The present invention converts solar energy into electrical energy through solar panels and stores it in energy storage elements. The energy storage elements provide electrical energy for the operation of the device, and signals are transmitted through antennas. This makes it unnecessary to lay out power supply lines and network equipment on a large scale during use of the device, thereby reducing installation costs, construction difficulty, and maintenance difficulty. At the same time, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure inside the electrical cavity of the present invention; Figure 3 It is a structural schematic diagram of the linkage column and the positioning sleeve of the present invention; Figure 4 The present invention Figure 3 A local enlarged schematic diagram of the middle A; Figure 5 It is a structural cross-sectional view of the linkage column and the positioning sleeve of the present invention; Figure 6 The present invention Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7 It is a structural schematic diagram of the first early warning unit of the present invention; Figure 8 It is a partial structural cross-sectional view of the first warning unit of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the first early warning unit of the present invention; Fig.10 It is a structural schematic diagram of the second early warning unit of the present invention; Fig.11 is a partial structural cross-sectional view of the second early warning unit of the present invention; Fig.12 It is a schematic diagram of the structural explosion of the second early warning unit of the present invention.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 100, protection tube; 101, measuring mark; 102, protection box; 103, linkage column; 104, positioning sleeve; 105, energy storage element; 106, antenna; 107, solar panel; 108, mark foot; 109, guide limit groove; 200, First Early Warning Department; 201, first electrode element; 202, second electrode element; 203, first base; 204, second base; 205, screw; 206, knob; 207, first pointer; 208, second pointer; 300, Second Early Warning Department; 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

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and 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.

[0018] Secondly, the term "one embodiment" or "embodiment" as used 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" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] Please refer to the attached Figures 1 to 6As shown, it is the first embodiment of the present invention, which provides a foundation settlement detection device, including a protection tube 100, the protection tube 100 is equipped with a measuring mark 101 that can move synchronously with the foundation, the upper end of the protection tube 100 is fixed with a protection box 102, and the upper end of the measuring mark 101 extends into the protection box 102, the upper end of the measuring mark 101 is fixed with a linkage column 103, the upper end of the protection box 102 is fixed with a positioning sleeve 104, and the linkage column 103 and the positioning sleeve 104 are slidably connected, the upper end of the protection box 102 is opened with an electrical cavity, the electrical cavity is fixed with an energy storage element 105 and a circuit board (not shown), and the energy storage element 105 and the circuit board are electrically connected, and the lower end of the measuring mark 101 is fixed with a mark foot 108, and also includes: A plurality of first warning parts 200, wherein the plurality of first warning parts 200 are all assembled between the linkage column 103 and the positioning sleeve 104, wherein the first warning part 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, and the first electrode element 201 and the second electrode element 202 are adapted to each other, and the first electrode element 201 and the circuit board as well as the second electrode element 202 and the circuit board are electrically connected through wires, and the first electrode element 201, the second electrode element 202 and the circuit board located in the same first warning part 200 form a total warning circuit, and in the initial state, the first electrode element 201 is located at the upper end of the second electrode element 202; A second warning unit 300, which is assembled inside the linkage column 103; Among them, 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 safe value, the total amount warning circuit changes from an open state to a closed state.

[0021] In this embodiment, drilling is performed 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, until the bedrock. The protection tube 100 is placed inside the borehole until the bottom of the protection tube 100 contacts the foundation, and the insert mark is pressed into the foundation. The protection tube 100 is then lifted up by 0.5 m, and sand is poured into the borehole to complete the installation of the device. When the foundation settles, the foundation drives the solar panel 107 to move downward synchronously. The solar panel 107 is fixedly connected to the measuring mark 101, so that the solar panel 107 drives the measuring mark 101 to move. The measuring mark 101 is fixedly connected to the linkage column 103, so that the measuring mark 101 drives the linkage column 103 to move. The first 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 the staff to monitor the total amount of foundation settlement from time to time, and automatic monitoring can be achieved, and the lag of settlement information can be effectively avoided.

[0022] Next, please refer to Figures 5 to 9 As 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 matched with the plurality of first warning parts 200 one by one, and 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 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. 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 outer side of the knob 206, wherein 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.

[0023] In this embodiment, when installing the device, the knob 206 is rotated according to the maximum safe value allowed for foundation settlement, and the knob 206 drives the screw 205 to rotate through the fixed connection between the knob 206 and the screw 205, and the screw 205 drives the second base 204 to move in the vertical direction through the threaded connection between the screw 205 and the second base 204, and the second base 204 drives the second electrode element 202 to move through the fixed connection between the second base 204 and the second electrode element 202, and then the distance between the first electrode element 201 and the second electrode element 202 is adjusted according to the maximum safe value allowed for foundation settlement, so that the device can be suitable for different construction projects.

[0024] 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).

[0025] Secondly, please also refer to Figure 4 , Figure 7 and Fig. 9 A plurality of avoidance grooves are provided on the side wall of the positioning sleeve 104, and a plurality of scale marks are evenly arranged on the outer side 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.

[0026] 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, and 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).

[0027] 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 by the knob 206 to move inside the guide limit groove 109. 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. The scale mark corresponding to the second pointer 208 and the scale mark corresponding to the first pointer 207 are read, and the distance between the first electrode element 201 and the second electrode element 202 can be calculated, so that the staff can 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.

[0028] Furthermore, since foundation settlement detection is a continuous and long process, during the construction and subsequent commissioning of the building, it is necessary to detect the foundation settlement at different stages, such as the initial settlement stage, the primary consolidation settlement stage, and the secondary consolidation settlement stage. In the present embodiment, multiple first warning units 200 are respectively used to monitor the foundation settlement at different stages. In the multiple first warning units 200, the value of H1 is adjusted according to the allowable amount of foundation settlement at different stages.

[0029] Please refer again Figures 10 to 12 The 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 inside 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 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 a wire. A rate warning circuit is formed among the third electrode element 304, the linkage sleeve 305 and the circuit board. In the initial state, the rate warning circuit is in a disconnected state.

[0030] Here, the material of the annular plate 303 and the linkage sleeve 305 is insulating material, and the driving element 301 is a servo motor. The servo motor has the advantages of high precision, strong stability, good timeliness, etc., and 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.

[0031] Furthermore, the fourth electrode element 306 is an existing mature application, which at least includes a sleeve, a ejector pin and an elastic element. The sleeve is fixed to the lower end of the linkage sleeve 305, and the ejector pin 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 ejector pin. When the daily settlement of the foundation is greater than a preset value, the annular plate 303 drives the third electrode element 304 to squeeze the ejector pin and compress the elastic element, thereby preventing the ejector pin from being squeezed and damaged.

[0032] 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, 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.

[0033] In this embodiment, a timing cycle is set. At the beginning of each timing cycle, the circuit board starts the driving element 301, so that the output end of the driving element 301 rotates. 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. 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 are in contact, the rate warning circuit changes from an open state to a closed state, and sends a signal 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.

[0034] 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.

[0035] Furthermore, in this embodiment, if the third electrode element 304 and the fourth electrode element 306 are not in contact with each other (i.e., the rate warning circuit is still in the disconnected state) when the current timing cycle ends, the next timing cycle is entered; if the third electrode element 304 and the fourth electrode element 306 are in contact with each other (i.e., the rate warning circuit changes from the disconnected state to the closed state) when the current timing cycle has not ended, a signal is sent through the circuit board, and the current timing cycle ends immediately, and the next timing cycle is entered.

[0036] 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 matched with the annular plate 303 , and the distance sensor 307 and the circuit board are electrically connected through a wire.

[0037] 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 a preset value.

[0038] In a specific embodiment, Fig.12 As shown, the cross-sectional shape 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 distance from the upper end of the annular plate 303 to the lower end of the third electrode element 304 in the vertical direction 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 inside 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 inside of the linkage sleeve 305 is recorded as L5, wherein L1, L2, and L4 are fixed values, 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 inside of the third electrode element 304 is detected by the distance sensor 307, and when the distance reaches L5, the driving element 301 is turned off, and at this time, the distance between the third electrode element 304 and the fourth electrode element 306 reaches L3.

[0039] Please refer again Fig.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 matched.

[0040] In this embodiment, the cooperation between the anti-rotation surface and the chamfered surface can prevent the linkage sleeve 305 from rotating relative to the annular plate 303 when the threaded shaft 302 drives 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.

[0041] 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 all electrically connected.

[0042] It should be noted that a remote server is also used in conjunction with the device, and the remote server and antenna 106 are connected via wireless signals, and the remote server exchanges data with the circuit board via the antenna 106 .

[0043] 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 to lay power supply lines and network equipment on a large scale, thereby reducing the installation cost, 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.

[0044] It should be noted that, when the total amount of foundation settlement and the foundation settlement rate of the device are both within a safe range, the circuit board is in a standby state, and other components do not consume electric energy; when the total amount warning circuit is closed, the circuit board changes from the standby state to the working state, and sends a signal through the antenna 106. After the signal is sent, it changes from the working state to the standby state; when the rate warning circuit is closed, the circuit board changes from the standby state to the working state, 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 the working state to the standby state; 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, providing power for the stable operation of the device.

[0045] The working principle of the present invention is: 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 allowable safety value of 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 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. 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 allowable safety value. 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 safe value. There is no need for the staff to detect the total amount of foundation settlement from time to time, and automatic monitoring can be achieved, and the lag of settlement information can be effectively avoided. At the same time, the device consumes less energy, and 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.

[0046] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. A foundation settlement detection device, characterized in that: The invention comprises a protection tube (100), wherein a measuring mark (101) capable of synchronously moving with a foundation is installed inside the protection tube (100), a protection box (102) is fixed to the upper end of the protection tube (100), and the upper end of the measuring mark (101) extends into the interior of the protection 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 protection 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 protection 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 parts (200), wherein the plurality of first warning parts (200) are all assembled between a linkage column (103) and a positioning sleeve (104), wherein the first warning part (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 as well as the second electrode element (202) and the circuit board are electrically connected via wires, and a total amount warning circuit is formed between the first electrode element (201), the second electrode element (202) and the circuit board located inside the same first warning part (200); A second warning part (300), the second warning part (300) being assembled inside the linkage column (103); Wherein, in the initial state, the total amount warning circuit is in an open state, and when the total amount of foundation settlement reaches the maximum allowable safe 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 matched with the plurality of first warning parts (200) one by one, the first warning parts (200) further comprising a first base (203), a second base (204), a screw rod (205) and a knob (206), the first base (203) being fixed to the outer wall of the linkage column (103), and the first electrode element (201) being fixed to the first base ( 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 rod (205) is threadedly connected to the inside of the second base (204), and the screw rod (205) and the positioning sleeve (104) are rotatably connected, and the knob (206) is fixed to the lower end of the screw rod (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 grooves, 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 grooves and extends to the outside of the positioning sleeve (104). The first pointer (207) and the scale mark, as well as the second pointer (208) and the scale mark, are mutually adapted.

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. A foundation settlement detection device according to claim 1, characterized in that: The second warning unit (300) comprises 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 via 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); the linkage sleeve ( The fourth electrode element (306) is fixed to the lower end of the linkage sleeve (305). The third electrode element (304) and the linkage sleeve (305) are corresponding 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.

6. A foundation settlement detection device according to claim 5, 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.

7. A foundation settlement detection device according to claim 5, 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 matched.

8. A 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); the energy storage element (105) and the solar panel (107) as well as the antenna (106) and the circuit board are all electrically connected.

Images