Intelligent construction site foundation pit displacement monitoring device

Abstract

The invention relates to the field of foundation pit displacement monitoring, and discloses an intelligent construction site foundation pit displacement monitoring device which comprises at least two fixed benchmarks installed on the same horizontal plane around a foundation pit; the plurality of measurement and observation points are installed on the inner wall of the foundation pit, the fixed benchmark is used for measuring the distance between the fixed benchmark and the measurement and observation points, and the distance change of the measurement and observation points relative to the fixed benchmark is displacement. According to the invention, at least two fixed benchmarks are arranged, and each fixed benchmark is provided with a detection mechanism, so that the settlement and displacement conditions of the fixed benchmarks can be monitored in real time, when the fixed benchmarks are settled or displaced, the liquid level in the liquid storage tank changes correspondingly, and an angle sensor and a second distance sensor are triggered to carry out accurate measurement; and the first angle sensor and the second angle sensor can respectively detect the rotation angles of the floating plate on the X axis and the Y axis, so that comprehensive monitoring on the inclination direction of the fixed benchmark is realized.

Description

Technical Field

[0001] The present invention relates to the field of foundation pit displacement monitoring, and particularly to a smart construction site foundation pit displacement monitoring device. Background Art

[0002] The displacement monitoring of the construction site foundation pit is an important link to ensure the safety of foundation pit construction; the foundation pit displacement monitoring mainly includes two aspects: horizontal displacement monitoring and vertical displacement monitoring. The horizontal displacement monitoring is used to measure the horizontal movement of the foundation pit support structure or the surrounding soil mass, while the vertical displacement monitoring focuses on the settlement of the foundation pit and the surrounding ground.

[0003] In the vertical displacement monitoring, a leveling instrument is used to measure the elevation change of the observation point relative to a fixed leveling point, so as to determine its vertical displacement. At the vertical displacement monitoring operation site, if the surrounding area of the reference point of the fixed leveling subsides, the position of the fixed leveling point will also shift. At this time, if the fixed leveling point is used to measure the observation point, the elevation change value of the observation point relative to the fixed leveling point is inaccurate.

[0004] The existing monitoring devices cannot effectively monitor the settlement and displacement of the fixed leveling point. Once the fixed leveling point settles or shifts, the monitoring data based on this point will deviate, resulting in inaccurate evaluation of the foundation pit displacement and affecting the accurate judgment of the foundation pit displacement by the monitoring device. If the fixed leveling point tilts or shifts, the displacement data collected by the monitoring device will also be interfered, and it cannot truly reflect the displacement situation of the foundation pit, bringing potential risks to the construction safety and quality control of the construction site foundation pit. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a smart construction site foundation pit displacement monitoring device, which solves the problems that the existing monitoring devices cannot effectively monitor the settlement and displacement of the fixed leveling point. Once the fixed leveling point settles or shifts, the monitoring data based on this point will deviate, resulting in inaccurate evaluation of the foundation pit displacement and affecting the accurate judgment of the foundation pit displacement by the monitoring device. If the fixed leveling point tilts or shifts, the displacement data collected by the monitoring device will also be interfered, and it cannot truly reflect the displacement situation of the foundation pit.

[0007] (2) Technical Solutions

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0009] An intelligent construction site foundation pit displacement monitoring device, comprising: at least two fixed leveling points installed on the same horizontal plane around the foundation pit; several measurement observation points installed on the inner wall of the foundation pit, the fixed leveling points being used to measure the distance to the measurement observation points, and the change in the distance of the measurement observation points relative to the fixed leveling points being the displacement amount; at least two detection mechanisms installed in the fixed leveling points, the detection mechanisms being used to detect the displacement change of the fixed leveling points; each detection mechanism including: a liquid storage tank filled with liquid inside, two adjacent liquid storage tanks being connected by a water pipe, and the liquid volume in each liquid storage tank being the same; a floating ball floating on the liquid surface of the liquid storage tank for moving when the liquid level changes; a second distance sensor installed on the top of the liquid storage tank for detecting the distance to the floating ball; a floating plate installed on the floating ball, the floating plate fitting on the liquid surface of the liquid storage tank, and the floating plate being used to drive the floating plate to rotate on the floating ball when the liquid surface tilts; a first angle sensor and a second angle sensor are arranged inside the floating ball, both the first angle sensor and the second angle sensor being connected to the floating plate, the first angle sensor being used to detect the rotation angle of the floating plate on the X-axis, and the second angle sensor being used to detect the rotation angle of the floating plate on the Y-axis.

[0010] Further, the liquid storage tank includes: a ventilation pipe installed on the liquid storage tank, two adjacent liquid storage tanks being connected by the ventilation pipe; a guide rod installed on the bottom wall of the liquid storage tank, the floating ball being sleeved on the guide rod, and the guide rod being used to limit the moving position of the floating ball.

[0011] Further, the floating ball includes: a moving groove opened on the surface of the floating ball; a moving seat installed in the moving groove, the floating plate being connected to the moving seat, and both the first angle sensor and the second angle sensor being installed in the moving seat. When the floating plate rotates along the Y-axis of the floating ball, the floating plate drives the moving seat to move in the moving groove.

[0012] Furthermore, the floating ball further includes: a rotation detection seat installed on the moving seat, the moving seat being connected to the floating plate through the rotation detection seat, and the detection axis of the first angle sensor being connected to the rotation detection seat; a rack installed on the inner wall of the moving groove; a large gear installed on the moving seat, the large gear meshing with the rack; a small gear installed on the moving seat, the small gear being connected to the large gear, and the detection axis of the second angle sensor being connected to the small gear.

[0013] Furthermore, the detection mechanism further includes: a data acquisition module, the first angle sensor and the second angle sensor being connected to the data acquisition module, and the data acquisition module being used to acquire sensor data; a communication module connected to the data acquisition module, the communication module being used to transmit data; a server module, the server module being connected to the communication module through the Internet.

[0014] Further, the fixed leveling point includes: a base installed around the foundation pit; an X-axis adjustment seat installed on the base, and the X-axis adjustment seat is used to adjust the angle of the detection mechanism; a Y-axis adjustment seat installed on the X-axis adjustment seat, and the Y-axis adjustment seat is used to adjust the angle of the detection mechanism; a Z-axis adjustment seat installed on the Y-axis adjustment seat, the detection mechanism is installed inside the Z-axis adjustment seat, and the Z-axis adjustment seat is used to adjust the height of the detection mechanism.

[0015] Furthermore, the Z-axis adjustment seat includes: a top plate installed on the top of the Z-axis adjustment seat; a first distance sensor installed on the top plate, and the first distance sensor is used to monitor the distance from the measurement observation point.

[0016] Furthermore, the base includes: a first X-axis gear installed inside the base, and the first X-axis gear is connected to the X-axis adjustment seat; a second X-axis gear installed inside the base, the second X-axis gear is connected to the first X-axis gear, and the diameter of the second X-axis gear is smaller than that of the first X-axis gear; a first power source installed on the base, and the power shaft of the first power source is connected to the second X-axis gear.

[0017] Furthermore, the X-axis adjustment seat includes: a rotating seat installed inside the X-axis adjustment seat, and the Y-axis adjustment seat is connected to the X-axis adjustment seat through the rotating seat; a first Y-axis gear installed on the rotating seat; a second Y-axis gear installed inside the X-axis adjustment seat, the second Y-axis gear is connected to the first Y-axis gear, and the diameter of the second Y-axis gear is smaller than that of the first Y-axis gear; a second power source installed on the X-axis adjustment seat, and the power shaft of the second power source is connected to the second Y-axis gear.

[0018] Furthermore, the Y-axis adjustment seat includes: a lead screw, one end is connected inside the Y-axis adjustment seat, and the other end is connected to the bottom end of the Z-axis adjustment seat; a third power source installed inside the Y-axis adjustment seat, and the power shaft of the third power source is connected to the lead screw.

[0019] (III) Beneficial effects

[0020] The present invention provides a displacement monitoring device for the foundation pit of an intelligent construction site. Compared with the prior art, it has the following beneficial effects:

[0021] 1. By setting at least two fixed leveling points and installing a detection mechanism on each fixed leveling point, using the principle of the communicating vessel and the mechanical transmission mechanism of the floating ball and the floating plate, the settlement and displacement of the fixed leveling point can be monitored in real time. When the fixed leveling point undergoes settlement or displacement, the liquid level in the liquid storage tank will change accordingly, and the floating ball and the floating plate will move accordingly, triggering the angle sensor and the second distance sensor for accurate measurement to ensure the accuracy of the monitoring data.

[0022] 2. The liquid storage tanks are connected through a ventilation pipe to form a communicating vessel system, which can effectively resist external interferences such as foundation settlement and ground deformation, maintain the stability of the liquid level, and thus reflect the stability of the fixed leveling point. The floating ball is sleeved on the guide rod, which limits the moving position of the floating ball and prevents measurement errors caused by the shaking or deviation of the floating ball.

[0023] 3. A first angle sensor and a second angle sensor are arranged inside the floating ball, which can respectively detect the rotation angles of the floating plate on the X-axis and Y-axis, so as to realize the comprehensive monitoring of the inclination direction of the fixed leveling point. Through data analysis, it can accurately judge whether the fixed leveling point has tilted or deviated, as well as the direction and degree of the tilt or deviation.

[0024] 4. By real-time monitoring and accurately measuring the settlement, displacement, tilt or deviation of the fixed leveling point, potential safety hazards can be discovered and warned in time, providing a strong guarantee for the construction safety and quality control of the foundation pit of the construction site. The X-axis adjustment seat, Y-axis adjustment seat and Z-axis adjustment seat in the fixed leveling point can conveniently adjust the angle and height of the detection mechanism to repair the errors caused by settlement, displacement, tilt or deviation. Description of the Drawings

[0025] Figure 1 It is a three-dimensional structure schematic diagram proposed by the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the fixed leveling point proposed by the present invention.

[0027] Figure 3 It is a schematic diagram of the structure of the liquid storage tank, water pipe and ventilation pipe proposed by the present invention.

[0028] Figure 4 It is an enlarged sectional view of the base part proposed by the present invention.

[0029] Figure 5 It is an enlarged sectional view of the X-axis adjustment seat part proposed by the present invention.

[0030] Figure 6 It is a sectional structure schematic diagram of the Y-axis adjustment seat and Z-axis adjustment seat proposed by the present invention.

[0031] Figure 7 It is a sectional structure schematic diagram of the liquid storage tank proposed by the present invention.

[0032] Figure 8 It is a sectional structure schematic diagram of the floating ball and the floating plate proposed by the present invention.

[0033] Figure 9 It is an enlarged sectional view of the floating ball, the floating plate and the moving seat part proposed by the present invention.

[0034] Figure 10Structural schematic diagram of the rotation detection base, first angle sensor, rack, large gear, small gear and second angle sensor proposed by the present invention.

[0035] The reference numerals in the figure are:

[0036] 100, fixed leveling point;

[0037] 200, base; 201, first X-axis gear; 202, second X-axis gear; 203, first power source;

[0038] 300, X-axis adjustment seat; 301, rotating seat; 302, first Y-axis gear; 303, second Y-axis gear; 304, second power source;

[0039] 400, Y-axis adjustment seat; 401, third power source; 402, lead screw;

[0040] 500, Z-axis adjustment seat; 501, top plate; 502, first distance sensor;

[0041] 600, detection mechanism; 601, liquid storage tank; 602, water pipe; 603, ventilation pipe; 604, second distance sensor; 605, floating ball; 606, floating plate; 607, guide rod; 608, moving groove; 609, moving seat; 610, rotation detection base; 611, first angle sensor; 612, rack; 613, large gear; 614, small gear; 615, second angle sensor;

[0042] 700, measurement observation point. Detailed implementation manners

[0043] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the protection scope of the present invention.

[0044] The following illustrates the implementation manners of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0045] Embodiment 1

[0046] Refer to Figures 1 - 10, a displacement monitoring device for a smart construction site foundation pit, comprising: at least two fixed level points 100 installed on the same horizontal plane around the foundation pit; several measurement observation points 700 installed on the inner wall of the foundation pit. The fixed level points 100 are used to measure the distance to the measurement observation points 700, and the change in the distance of the measurement observation points 700 relative to the fixed level points 100 is the displacement amount; at least two detection mechanisms 600, the detection mechanisms 600 are installed in the fixed level points 100, and the detection mechanisms 600 are used to detect the displacement change of the fixed level points 100; each detection mechanism 600 includes: a liquid storage tank 601 filled with liquid inside. Two adjacent liquid storage tanks 601 are connected by a water pipe 602, and the liquid volume in each liquid storage tank 601 is the same. The stability of the fixed level point 100 is reflected by the stability of the liquid level. When the liquid level changes, it means that the fixed level point 100 may have displaced. When the bottoms of two containers are connected and the liquid in the containers is the same kind of liquid and the liquid does not flow, the liquid surfaces in each container will remain at the same level. In a static state, the pressure on the same horizontal plane is equal. When the bottom areas of two or more containers are connected, their liquid surfaces will naturally adjust to the same horizontal plane to maintain pressure balance. In the application of the liquid storage tank 601 in this solution, when multiple liquid storage tanks 601 are connected by a ventilation pipe 603, they form a communicating vessel system. If one of the liquid storage tanks 601 undergoes a displacement change due to reasons such as foundation settlement or ground deformation, then its position relative to other liquid storage tanks 601 will change. Due to the action of the communicating vessel principle, the liquid level in this liquid storage tank 601 will also rise or fall accordingly to balance with the liquid levels of other liquid storage tanks 601. This change in the liquid level can be used as a basis for monitoring displacement; a floating ball 605 floating on the liquid surface of the liquid storage tank 601, used to move when the liquid level changes. When the liquid level changes, the position of the floating ball 605 also changes relatively, and the second distance sensor 604 can then monitor the change in the distance of the floating ball 605, thereby detecting the displacement of the fixed level point 100; a second distance sensor 604 installed on the top of the liquid storage tank 601, and the second distance sensor 604 is used to detect the distance to the floating ball 605;The floating plate 606 is installed on the floating ball 605. The floating plate 606 fits on the liquid surface of the liquid storage tank 601. When the liquid level is tilted, the tilt of the liquid level will drive the floating plate 606 to rotate on the floating ball 605. The floating plate 606 can fit on the liquid surface because it is affected by the buoyancy of the liquid. Buoyancy is the force generated by the pressure difference between the upward and downward pressures of a fluid on an object immersed in it. When the weight of the floating plate 606 is less than the weight of the liquid it displaces, the floating plate 606 will float on the liquid surface. When the liquid level is tilted, since the floating plate 606 is still affected by the buoyancy, it will maintain a state parallel to the liquid surface. Since the floating plate 606 and the floating ball 605 are connected together, when the liquid level is tilted, the floating plate 606 will be affected by a torque, which will cause the floating plate 606 to rotate around a certain axis on the floating ball 605; A first angle sensor 611 and a second angle sensor 615 are arranged in the floating ball 605. Both the first angle sensor 611 and the second angle sensor 615 are connected to the floating plate 606. The first angle sensor 611 is used to detect the rotation angle of the floating plate 606 on the X-axis, and the second angle sensor 615 is used to detect the rotation angle of the floating plate 606 on the Y-axis.;

[0047] The liquid storage tank 601 includes: a vent pipe 603, which is installed on the liquid storage tank 601, and two adjacent liquid storage tanks 601 are connected through the vent pipe 603; a guide rod 607, which is installed on the bottom wall of the liquid storage tank 601, and the floating ball 605 is sleeved on the guide rod 607. The guide rod 607 is used to limit the moving position of the floating ball 605.

[0048] The floating ball 605 includes: a moving groove 608 formed on the surface of the floating ball 605; a moving seat 609 installed in the moving groove 608, the floating plate 606 is connected to the moving seat 609, the first angle sensor 611 and the second angle sensor 615 are both installed in the moving seat 609, when the floating plate 606 rotates along the Y-axis of the floating ball 605, the floating plate 606 drives the moving seat 609 to move in the moving groove 608; a rotation detection seat 610 installed on the moving seat 609, the moving seat 609 is connected to the floating plate 606 through the rotation detection seat 610, and the detection axis of the first angle sensor 611 is connected to the rotation detection seat 610; a rack 612 installed on the inner wall of the moving groove 608; a large gear 613 installed on the moving seat 609, the large gear 613 meshes with the rack 612; a small gear 614 installed on the moving seat 609, the small gear 614 is connected to the large gear 613, and the detection axis of the second angle sensor 615 is connected to the small gear 614. When the fixed benchmark point 100 tilts left and right, the rotation of the floating plate 606 will drive the rotation detection seat 610 to rotate, and the first angle sensor 611 detects the rotation angle of the rotation detection seat 610 to determine the tilt of the fixed benchmark point 100. When the fixed benchmark point 100 tilts forward and backward, the floating plate 606 drives the moving seat 609 to move in the moving groove 608, the moving seat 609 drives the large gear 613 to move, the large gear 613 rotates on the rack 612, the large gear 613 drives the small gear 614 to rotate, and the second angle sensor 615 detects the rotation angle of the small gear 614 to determine the tilt of the fixed benchmark point 100.

[0049] The fixed benchmark point 100 includes: a base 200 installed around the foundation pit; an X-axis adjustment seat 300 installed on the base 200, and the X-axis adjustment seat 300 is used to adjust the angle of the detection mechanism 600; a Y-axis adjustment seat 400 installed on the X-axis adjustment seat 300, and the Y-axis adjustment seat 400 is used to adjust the angle of the detection mechanism 600; a Z-axis adjustment seat 500 installed on the Y-axis adjustment seat 400, the detection mechanism 600 is installed in the Z-axis adjustment seat 500, and the Z-axis adjustment seat 500 is used to adjust the height of the detection mechanism 600.

[0050] The Z-axis adjustment seat 500 includes: a top plate 501 installed on the top of the Z-axis adjustment seat 500; a first distance sensor 502 installed on the top plate 501, and the first distance sensor 502 is used to monitor the distance from the measurement observation point 700.

[0051] The base 200 includes: a first X-axis gear 201 installed inside the base 200, and the first X-axis gear 201 is connected to the X-axis adjustment seat 300; a second X-axis gear 202 installed inside the base 200, the second X-axis gear 202 is connected to the first X-axis gear 201, and the diameter of the second X-axis gear 202 is smaller than that of the first X-axis gear 201; a first power source 203 installed on the base 200, the power shaft of the first power source 203 is connected to the second X-axis gear 202, the first power source 203 drives the second X-axis gear 202 to rotate, and the second X-axis gear 202 drives the first X-axis gear 201 and the X-axis adjustment seat 300 to rotate, so as to adjust the angle of the fixed leveling point 100 to repair the inclination of the fixed leveling point 100.

[0052] The X-axis adjustment seat 300 includes: a rotating seat 301 installed inside the X-axis adjustment seat 300, and the Y-axis adjustment seat 400 is connected to the X-axis adjustment seat 300 through the rotating seat 301; a first Y-axis gear 302 installed on the rotating seat 301; a second Y-axis gear 303 installed inside the X-axis adjustment seat 300, the second Y-axis gear 303 is connected to the first Y-axis gear 302, and the diameter of the second Y-axis gear 303 is smaller than that of the first Y-axis gear 302; a second power source 304 installed on the X-axis adjustment seat 300, the power shaft of the second power source 304 is connected to the second Y-axis gear 303, the second power source 304 drives the second Y-axis gear 303 to rotate, and the second Y-axis gear 303 drives the first Y-axis gear 302 and the rotating seat 301 to rotate, and the rotating seat 301 drives the Y-axis adjustment seat 400 to rotate, so as to adjust the angle of the fixed leveling point 100 to repair the inclination of the fixed leveling point 100.

[0053] The Y-axis adjustment seat 400 includes: a lead screw 402, one end of which is connected inside the Y-axis adjustment seat 400, and the other end is connected to the bottom end of the Z-axis adjustment seat 500; a third power source 401 installed inside the Y-axis adjustment seat 400, the power shaft of the third power source 401 is connected to the lead screw 402, the third power source 401 drives the lead screw 402 to rotate, and the lead screw 402 drives the Z-axis adjustment seat 500 to move up and down in the Y-axis adjustment seat 400 to repair the height of the detection mechanism 600 and the first distance sensor 502.

[0054] Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 lies in that the detection mechanism 600 further includes: a data acquisition module, the first angle sensor 611 and the second angle sensor 615 are connected to the data acquisition module, and the data acquisition module is used to acquire sensor data; the data acquisition module is also connected to the first distance sensor 502 and the second distance sensor 604. Sensors are usually connected to the data acquisition module in a wired or wireless manner. Wired connection usually uses a dedicated cable or data line to directly transmit the output signal of the sensor to the data acquisition device. Wireless connection uses wireless communication technologies such as Bluetooth, Wi-Fi, LoRa, etc. to wirelessly transmit the data of the sensor to the data acquisition module. The analog signal or digital signal output by the sensor is converted into a digital signal through the analog-to-digital conversion (ADC) function of the data acquisition device for subsequent processing; a communication module, connected to the data acquisition module, and the communication module is used to transmit data. The connection between the data acquisition device and the communication module is usually also in a wired or wireless manner. Wired connection may use an Ethernet interface, a serial port (RS-232 / RS-485), etc. to transmit the data in the data acquisition device to the communication module. Wireless connection may use wireless communication technologies such as Wi-Fi, 4G / 5G, etc. to transmit the data to the cloud or a mobile terminal. The data acquisition device sends the processed data to the cloud server or a specified mobile terminal through the communication module; a server module, the server module is connected to the communication module through the Internet, and the communication module establishes a connection with the server module through the Internet. Usually, standard network communication protocols (such as TCP / IP) and encryption technologies (such as HTTPS) are used to ensure the security and reliability of data transmission. Once the communication module establishes a connection with the server module, it can upload the data transmitted by the data acquisition module to the cloud server. The cloud server receives and stores these data for subsequent analysis and processing; each sensor captures the foundation pit displacement data and transmits the data to the data acquisition module. The data acquisition module performs preliminary processing on the received data and transmits the data to the communication module in a wired or wireless manner. The communication module transmits the data to the server module while ensuring the security and reliability of data transmission. The server module receives and stores the data for subsequent analysis and processing. The user on the mobile terminal accesses the data on the cloud server through a mobile application to achieve real-time monitoring and early warning functions.

[0056] During use, install the base 200 around the foundation pit, and successively install the X-axis adjustment base 300, Y-axis adjustment base 400, and Z-axis adjustment base 500 on the base 200. Ensure that each component is firmly connected. Install the detection mechanism 600 inside the Z-axis adjustment base 500, including a liquid storage tank 601, a floating ball 605, a floating plate 606, an angle sensor, etc., to ensure that the floating ball 605 can move smoothly on the guide rod 607 and the floating plate 606 can fit on the liquid surface. Install the first distance sensor 502 on the top plate 501 of the Z-axis adjustment base 500 to monitor the distance from the measurement observation point 700. By adjusting the X-axis adjustment base 300, Y-axis adjustment base 400, and Z-axis adjustment base 500, ensure that all fixed leveling points 100 are on the same horizontal plane, and calibrate the initial angles of the first angle sensor 611 and the second angle sensor 615. Each sensor (including the angle sensor, the first distance sensor 502, and the second distance sensor 604) starts to capture the foundation pit displacement data. The data acquisition module receives the data from the sensors and performs preliminary processing, such as analog-to-digital conversion (ADC), etc. The data acquisition module transmits the data to the communication module by wired or wireless means. The communication module then transmits the data to the server module and stores it on the cloud server. The server module receives the data from the communication module and stores it. The server further analyzes the received data, such as calculating the displacement amount, judging the tilt angle, etc. If the analysis result shows that the foundation pit displacement exceeds the preset threshold, the server will trigger an early warning or alarm mechanism and notify relevant personnel through a mobile terminal or other means. The user on the mobile terminal can access the data on the cloud server through a mobile application to realize real-time monitoring of the foundation pit displacement situation. If it is found that the fixed leveling point 100 has displacement or tilt, it can be repaired by adjusting the angles and heights of the X-axis adjustment base 300, Y-axis adjustment base 400, and Z-axis adjustment base 500. After the adjustment is completed, data acquisition, transmission, analysis, and processing are carried out again to ensure that the foundation pit displacement situation is effectively monitored and controlled. Regularly check and maintain the system to ensure that all sensors, data acquisition modules, communication modules, and server modules are working properly. Regularly back up the data on the cloud server to prevent data loss or damage. Upgrade and optimize the system according to actual needs and technological development to improve the stability and accuracy of the system.

[0057] In summary, compared with the prior art, the following beneficial effects are achieved:

[0058] By setting at least two fixed leveling points 100 and installing a detection mechanism 600 on each fixed leveling point 100, and utilizing the communicating vessel principle and the mechanical transmission mechanism of the float 605 and the floating plate 606, the settlement and displacement of the fixed leveling points 100 can be monitored in real time. When the fixed leveling point 100 settles or displaces, the liquid level in the liquid storage tank 601 will change accordingly, and the float 605 and the floating plate 606 will move accordingly, triggering the angle sensor and the second distance sensor 604 to perform precise measurement, thereby ensuring the accuracy of the monitoring data.

[0059] The liquid storage tanks 601 are connected by ventilation pipes 603 to form a communicating system, which can effectively resist external interference, such as foundation settlement, ground deformation, etc., maintain the stability of the liquid level, and then reflect the stability of the fixed level point 100. The float 605 is mounted on the guide rod 607, which limits the moving position of the float 605 and prevents measurement errors caused by shaking or deviation of the float 605.

[0060] The float 605 is provided with a first angle sensor 611 and a second angle sensor 615, which can respectively detect the rotation angles of the float 606 on the X-axis and the Y-axis, thereby realizing comprehensive monitoring of the inclination direction of the fixed level point 100. Through data analysis, it is possible to accurately determine whether the fixed level point 100 is tilted or offset, as well as the direction and degree of the tilt or offset.

[0061] By real-time monitoring and precise measurement of the settlement, displacement, inclination or offset of the fixed leveling point 100, potential safety hazards can be discovered and warned in time, providing strong protection for the safety and quality control of the foundation pit construction on the construction site. The X-axis adjustment seat 300, Y-axis adjustment seat 400 and Z-axis adjustment seat 500 in the fixed leveling point 100 can easily adjust the angle and height of the detection mechanism 600 to repair errors caused by settlement, displacement, inclination or offset.

[0062] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. A smart construction site foundation pit displacement monitoring device, characterized in that: include: At least two fixed level points (100) installed on the same level around the foundation pit; A plurality of measurement observation points (700) are installed on the inner wall of the foundation pit, the fixed level point (100) is used to measure the distance from the measurement observation point (700), and the change in the distance of the measurement observation point (700) relative to the fixed level point (100) is the displacement; at least two detection mechanisms (600), the detection mechanisms (600) being installed in the fixed leveling point (100), and the detection mechanisms (600) being used to detect displacement changes of the fixed leveling point (100); Each of the detection mechanisms (600) comprises: A liquid storage tank (601), wherein the liquid storage tank (601) is filled with liquid, two adjacent liquid storage tanks (601) are connected via a water pipe (602), and the amount of liquid in each liquid storage tank (601) is the same; A float (605) floats on the surface of the liquid in the liquid storage tank (601) and is used to move when the liquid level changes; A second distance sensor (604) is installed on the top of the liquid storage tank (601), and the second distance sensor (604) is used to detect the distance from the floating ball (605); A floating plate (606) is mounted on the floating ball (605). The floating plate (606) is attached to the liquid surface of the liquid storage tank (601). When the liquid surface is tilted, the tilt of the liquid surface will drive the floating plate (606) to rotate on the floating ball (605). A first angle sensor (611) and a second angle sensor (615) are arranged in the floating ball (605); the first angle sensor (611) and the second angle sensor (615) are both connected to the floating plate (606); the first angle sensor (611) is used to detect the rotation angle of the floating plate (606) on the X axis; and the second angle sensor (615) is used to detect the rotation angle of the floating plate (606) on the Y axis.

2. The intelligent construction site foundation pit displacement monitoring device according to claim 1 is characterized in that: The liquid storage tank (601) comprises: A vent pipe (603) is installed on the liquid storage tank (601), and two adjacent liquid storage tanks (601) are connected through the vent pipe (603); The guide rod (607) is installed on the bottom wall of the liquid storage tank (601), and the float (605) is sleeved on the guide rod (607). The guide rod (607) is used to limit the moving position of the float (605).

3. The intelligent construction site foundation pit displacement monitoring device according to claim 1 is characterized in that: The floating ball (605) comprises: A movable groove (608) is provided on the surface of the floating ball (605); The movable seat (609) is installed in the movable groove (608), the floating plate (606) is connected to the movable seat (609), the first angle sensor (611) and the second angle sensor (615) are both installed in the movable seat (609), and when the floating plate (606) rotates along the Y-axis of the floating ball (605), the floating plate (606) drives the movable seat (609) to move in the movable groove (608).

4. The intelligent construction site foundation pit displacement monitoring device according to claim 3 is characterized in that: The floating ball (605) further comprises: A rotation detection seat (610) is mounted on the movable seat (609); the movable seat (609) is connected to the floating plate (606) via the rotation detection seat (610); and the detection axis of the first angle sensor (611) is connected to the rotation detection seat (610); A rack (612) mounted on the inner wall of the movable groove (608); A large gear (613) is mounted on the movable seat (609), and the large gear (613) is meshed with the rack (612); A small gear (614) is installed on the movable seat (609), the small gear (614) is connected to the large gear (613), and the detection shaft of the second angle sensor (615) is connected to the small gear (614).

5. The intelligent construction site foundation pit displacement monitoring device according to claim 4 is characterized in that: The detection mechanism (600) further includes: A data acquisition module, the first angle sensor (611) and the second angle sensor (615) are connected to the data acquisition module, and the data acquisition module is used to collect sensor data; A communication module, connected to the data acquisition module, and used for transmitting data; The server module is connected to the communication module via the Internet.

6. The intelligent construction site foundation pit displacement monitoring device according to claim 1 is characterized in that: The fixed level point (100) comprises: A base (200) is installed around the foundation pit; An X-axis adjustment seat (300) is installed on the base (200), and the X-axis adjustment seat (300) is used to adjust the angle of the detection mechanism (600); A Y-axis adjustment seat (400) is installed on the X-axis adjustment seat (300), and the Y-axis adjustment seat (400) is used to adjust the angle of the detection mechanism (600); The Z-axis adjustment seat (500) is mounted on the Y-axis adjustment seat (400), and the detection mechanism (600) is mounted in the Z-axis adjustment seat (500). The Z-axis adjustment seat (500) is used to adjust the height of the detection mechanism (600).

7. The intelligent construction site foundation pit displacement monitoring device according to claim 6 is characterized in that: The Z-axis adjustment seat (500) comprises: A top plate (501) mounted on the top of the Z-axis adjustment seat (500); A first distance sensor (502) is installed on the top plate (501), and the first distance sensor (502) is used to monitor and measure the distance between the observation point (700).

8. The intelligent construction site foundation pit displacement monitoring device according to claim 6 is characterized in that: The base (200) comprises: A first X-axis gear (201) is installed in the base (200), and the first X-axis gear (201) is connected to the X-axis adjustment seat (300); A second X-axis gear (202) is installed in the base (200), the second X-axis gear (202) is connected to the first X-axis gear (201), and the diameter of the second X-axis gear (202) is smaller than that of the first X-axis gear (201); The first power source (203) is installed on the base (200), and the power shaft of the first power source (203) is connected to the second X-axis gear (202).

9. The intelligent construction site foundation pit displacement monitoring device according to claim 6, characterized in that: The X-axis adjustment seat (300) comprises: A rotating seat (301) is installed in the X-axis adjustment seat (300), and the Y-axis adjustment seat (400) is connected to the X-axis adjustment seat (300) via the rotating seat (301); A first Y-axis gear (302) is mounted on the rotating base (301); A second Y-axis gear (303) is installed in the X-axis adjustment seat (300), the second Y-axis gear (303) is connected to the first Y-axis gear (302), and the diameter of the second Y-axis gear (303) is smaller than that of the first Y-axis gear (302); The second power source (304) is installed on the X-axis adjustment seat (300), and the power shaft of the second power source (304) is connected to the second Y-axis gear (303).

10. The intelligent construction site foundation pit displacement monitoring device according to claim 6, characterized in that: The Y-axis adjustment seat (400) comprises: A screw rod (402), one end of which is connected to the Y-axis adjustment seat (400), and the other end of which is connected to the bottom end of the Z-axis adjustment seat (500); The third power source (401) is installed in the Y-axis adjustment seat (400), and the power shaft of the third power source (401) is connected to the screw rod (402).

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