Deep foundation pit monitoring device

Abstract

An electric push rod is arranged between the upper end face of a transverse partition plate and a vertical partition plate, a lifting plate is arranged on a piston rod of the electric push rod, a rotating shaft is rotationally connected to the center of the upper end face of the lifting plate, a gear is arranged on the rotating shaft, a rack meshed with the gear is arranged on one side of the gear, and a transmission rod is arranged on the back face of the rack. A first motor is arranged on the rear side of the upper end face of the lifting plate, a cam is arranged at the output end of the first motor, a mounting plate is arranged at the upper end of a rotating shaft, a camera is arranged on the upper end face of the mounting plate, and perpendicularity monitoring sensors are arranged on the left side and the right side of the camera. A water level monitoring device is arranged between the vertical partition plate and the box body, an advancing driving device and a controller are arranged at the lower end in the box body, and an advancing device is arranged on the lower end face of the box body. The utility model has the advantages that the position can be flexibly adjusted, the monitoring range is large, and the omnibearing monitoring function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering monitoring, in particular to a deep foundation pit monitoring device. Background Art

[0002] Deep foundation pit refers to a project with an excavation depth of more than 5 meters, or a project with a depth of less than 5 meters but with particularly complex geological conditions, surrounding environment and underground pipelines. At present, in the monitoring of deep foundation pits, the main items to be measured are vertical displacement, horizontal displacement, deep horizontal displacement, anchor or support axial force, groundwater level, etc.; regarding the monitoring method of vertical displacement and horizontal displacement, the main method currently used is to drill holes to bury monitoring points, and surveying professionals set up instruments such as total stations, precision levels or inclinometers, manually measure data at various points, and then import the measured data into the computer system. After calculation and analysis, the data is reported to relevant units; this method requires a lot of manpower and time costs, and the surveyors work along the edge of the foundation pit, which poses a great risk to personal safety. Because the measured values ​​cannot be calculated in the first time, they often cannot promptly reflect the abnormal changes in the foundation pit project during the construction process. If the risk development speed exceeds a certain time, the foundation pit will be in danger; although some companies have developed automatic monitoring equipment, such as those based on real-time differential positioning (Rea The UAV technology for foundation pit monitoring based on l-Time Kinematic (RTK) technology uses coordinate system data to monitor the displacement of the foundation pit. Its shortcomings are mainly in two aspects. First, the frequency of UAV data collection for the foundation pit is still in a manually set state, which cannot meet the requirements of real-time feedback data. Second, the well-known RTK measurement technology can basically reach the centimeter level. Compared with the millimeter-level accuracy required for foundation pit monitoring, the error is relatively large and it is difficult to meet the monitoring accuracy requirements. Some companies also use displacement sensors to measure the relative displacement size of the foundation pit. The size measured by the displacement sensor is the relative displacement size, and the displacement situation of the deep foundation pit is quite complicated. Point A and point B may both have displacement at the same time. The displacement line involved is long and the displacement surface is wide. Therefore, the measurement data collected by the displacement sensor for the foundation pit is difficult to reflect the actual situation of the foundation pit deformation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a deep foundation pit monitoring device with flexible position adjustment and large monitoring range in view of the above problems.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a deep foundation pit monitoring device, including a box body, a camera and a verticality monitoring sensor, a transverse partition is provided at the lower end of the box body, a vertical partition is symmetrically provided on the upper end surface of the transverse partition, an electric push rod is provided between the vertical partitions on the upper end surface of the transverse partition, a lifting plate is provided on the piston rod of the electric push rod, a rotating shaft is rotatably connected to the upper end surface of the lifting plate, a gear is provided on the rotating shaft, a rack meshing with the gear is provided on one side of the gear, a transmission rod is provided on the back of the rack, a support block is provided on the upper end surface of the lifting plate, and the transmission rod slides with the support block A transmission plate is provided at the rear end of the transmission rod, a spring is provided between the transmission plate and the support block, a motor is provided on the rear side of the upper end surface of the lifting plate, a cam is provided on the output end of the motor, the cam is fitted with the transmission plate, the upper end of the rotating shaft is exposed from the box body, a mounting plate is provided at the upper end of the rotating shaft, a camera is provided on the upper end surface of the mounting plate, verticality monitoring sensors are provided on the left and right sides of the camera, a water level monitoring device is provided between the vertical partition and the box body, a traveling drive device and a controller are provided at the lower end of the box body, a traveling device is provided on the lower end surface of the box body, and the traveling drive device drives the traveling device.

[0005] Compared with the prior art, the advantages of the utility model are: the deep foundation pit monitoring device, the travel drive device drives the travel device to move, and adjusts the position of the entire device, so that the monitoring range is wide; the travel drive device drives the travel device to move, so that the device moves to the deep foundation pit, and the water level of the foundation pit point is monitored by the water level monitoring device; when the motor rotates, the rotating shaft is driven to reciprocate within a certain range, so that the camera and the verticality monitoring sensor swing back and forth, the direction of the camera and the verticality monitoring sensor is not fixed, and the monitoring range is further improved.

[0006] As an improvement, the water level monitoring device includes a water level detection barrel and a water level sensor. The water level detection barrel is connected to the water level sensor through a feeding pipe. A floating ball is provided on the feeding pipe. An exposure hole is provided at the front of the box body corresponding to the position of the water level sensor. When the floating ball is opened, the fire extinguishing material in the water level detection barrel is sprayed out through the feeding pipe and the water level sensor to extinguish the fire.

[0007] As an improvement, the travel drive device includes a second motor and a first synchronous wheel. The second motor is symmetrically arranged on the inner surface of the lower end face of the box body. The output end of the second motor is provided with a first synchronous wheel. The travel device includes a roller and a universal wheel. The front end of the lower end face of the box body is provided with a universal wheel. The rear end of the lower end face of the box body is symmetrically provided with rollers. The roller is provided with a second synchronous wheel. The second synchronous wheel is connected to the first synchronous wheel through a synchronous belt. The second motor drives the first synchronous wheel to rotate. The first synchronous wheel drives the second synchronous wheel to rotate through the synchronous belt. The second synchronous wheel drives the roller to rotate, thereby driving the device.

[0008] As an improvement, the spring is sleeved on a transmission rod, and the transmission rod guides the expansion and contraction direction of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0010] Figure 2 It is a top view of the lifting plate of the utility model.

[0011] Figure numerals: 1. box body, 2. camera, 3. verticality monitoring sensor, 4. horizontal partition, 5. vertical partition, 6. electric push rod, 7. lifting plate, 8. rotating shaft, 9. gear, 10. rack, 11. transmission rod, 12. support block, 13. transmission plate, 14. spring, 15. motor 1, 16. cam, 17. mounting plate, 18. controller, 19. water level detection barrel, 20. water level sensor, 21. feeding pipe, 22. float, 23. motor 2, 24. synchronous wheel 1, 25. roller, 26. universal wheel, 27. synchronous wheel 2. DETAILED DESCRIPTION

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Combined with Figure 1 The travel drive device includes a second motor 23 and a synchronous wheel 24. The second motor 23 is symmetrically arranged on the inner surface of the lower end surface of the box body 1. The output end of the second motor 23 is provided with a synchronous wheel 24. The travel device includes a roller 25 and a universal wheel 26. The front end of the lower end surface of the box body 1 is provided with a universal wheel 26. The rear end of the lower end surface of the box body 1 is symmetrically provided with rollers 25. The roller 25 is provided with a synchronous wheel 27. The synchronous wheel 27 is connected to the synchronous wheel 24 through a synchronous belt.

[0014] The second motor 23 drives the first synchronous wheel 24 to rotate, the first synchronous wheel 24 drives the second synchronous wheel 27 to rotate through the synchronous belt, and the second synchronous wheel 27 drives the roller 25 to rotate to drive the device. When the device needs to turn, the two second motors 23 can be rotated in the opposite direction.

[0015] Combined with Figure 1 The water level monitoring device includes a water level detection barrel 19 and a water level sensor 20. The water level detection barrel 19 is connected to the water level sensor 20 through a feeding pipe 21. A float 22 is provided on the feeding pipe 21. An exposure hole is provided on the front of the box body 1 at a position corresponding to the position of the water level sensor 20.

[0016] The device is moved to a deep foundation pit, and the water level of the foundation pit point is monitored by a water level monitoring device;

[0017] Combined with Figure 1-2, an electric push rod 6 is provided between the vertical partitions 5 on the upper end surface of the horizontal partition 4, and a lifting plate 7 is provided on the piston rod of the electric push rod 6. The upper end surface of the lifting plate 7 is rotatably connected with a rotating shaft 8, and a gear 9 is provided on the rotating shaft 8. A rack 10 meshing with the gear 9 is provided on one side, and a transmission rod 11 is provided on the back of the rack 10. A support block 12 is provided on the upper end surface of the lifting plate 7, and the transmission rod 11 is slidably connected with the support block 12. A transmission plate 13 is provided at the rear end of the transmission rod 11, and a spring 14 is provided between the transmission plate 13 and the support block 12. A motor 15 is provided on the rear side of the upper end surface of the lifting plate 7, and a cam 16 is provided on the output end of the motor 15, and the cam 16 is fitted with the transmission plate 13. The upper end of the rotating shaft 8 is exposed from the box body 1, and a mounting plate 17 is provided on the upper end of the rotating shaft 8. A camera 2 is provided on the upper end surface of the mounting plate 17, and verticality monitoring sensors 3 are provided on the left and right sides of the camera 2.

[0018] The motor 15 rotates, driving the cam 16 to rotate. The cam 16 drives the rack 10 to reciprocate through the transmission plate 13 and the transmission rod 11. The rack 10 drives the gear 9 to reciprocate. The gear 9 drives the shaft 8 to reciprocate within a certain range, so that the camera 2 and the verticality monitoring sensor 3 swing back and forth. The orientation of the camera 2 and the verticality monitoring sensor 3 is not fixed, further improving the monitoring range. The piston rod of the electric push rod 6 is extended and retracted to adjust the height of the camera 2 and the verticality monitoring sensor 3 to improve the detection range.

[0019] The utility model and its implementation methods are described, and such description is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A deep foundation pit monitoring device, comprising a housing (1), a camera (2) and a verticality monitoring sensor (3), characterized in that: A transverse partition (4) is provided at the lower end of the box body (1), and a vertical partition (5) is symmetrically provided on the upper end surface of the transverse partition (4). An electric push rod (6) is provided between the upper end surface of the transverse partition (4) and the vertical partition (5). A lifting plate (7) is provided on the piston rod of the electric push rod (6), and a rotating shaft (8) is rotatably connected to the center of the upper end surface of the lifting plate (7). A gear (9) is provided on the rotating shaft (8), and a rack (10) meshing with the gear (9) is provided on one side of the gear (9), and a transmission rod (11) is provided on the back of the rack (10). A support block (12) is provided on the upper end surface of the lifting plate (7), and the transmission rod (11) is slidably connected to the support block (12). A transmission plate (13) is provided at the rear end of the transmission rod (11), and the transmission plate (13) A spring (14) is provided between the lifting plate (7) and the supporting block (12); a motor (15) is provided on the rear side of the upper end surface of the lifting plate (7); a cam (16) is provided on the output end of the motor (15); the cam (16) is fitted with the transmission plate (13); the upper end of the rotating shaft (8) is exposed from the box body (1); a mounting plate (17) is provided on the upper end of the rotating shaft (8); a camera (2) is provided on the upper end surface of the mounting plate (17); verticality monitoring sensors (3) are provided on the left and right sides of the camera (2); a water level monitoring device is provided between the vertical partition (5) and the box body (1); a travel drive device and a controller (18) are provided at the lower end of the box body (1); a travel device is provided on the lower end surface of the box body (1); and the travel drive device drives the travel device.

2. A deep foundation pit monitoring device according to claim 1, characterized in that: The water level monitoring device comprises a water level detection barrel (19) and a water level sensor (20); the water level detection barrel (19) is connected to the water level sensor (20) via a feeding pipe (21); a floating ball (22) is provided on the feeding pipe (21); and an exposure hole is provided on the front of the box (1) at a position corresponding to the position of the water level sensor (20).

3. A deep foundation pit monitoring device according to claim 1, characterized in that: The travel drive device comprises a second motor (23) and a first synchronous wheel (24); the second motor (23) is symmetrically arranged on the inner surface of the lower end surface of the housing (1); the first synchronous wheel (24) is arranged on the output end of the second motor (23); the travel device comprises a roller (25) and a universal wheel (26); the universal wheel (26) is arranged on the front end of the lower end surface of the housing (1); the roller (25) is symmetrically arranged on the rear end of the lower end surface of the housing (1); the second synchronous wheel (27) is arranged on the roller (25); the second synchronous wheel (27) is connected to the first synchronous wheel (24) through a synchronous belt.

4. A deep foundation pit monitoring device according to claim 1, characterized in that: The spring (14) is sleeved on the transmission rod (11).

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