Foundation pit stability level monitoring device

Abstract

The utility model relates to the technical field of foundation pit monitoring, and discloses a foundation pit stability level monitoring device. The foundation pit stability level monitoring device comprises a foundation pit, a leveling support is mounted at the top of the foundation pit, a first platform is fixedly connected to the top of the leveling support, a second platform is fixedly connected to the top end of the first platform, and a mounting frame is fixedly connected to the top of the second platform; the top end of the mounting frame is fixedly connected with a reel, flange ring holes are formed in the first platform and the second platform and located under the reel, a rotating disc is rotatably connected to the surface of the second platform and located above the flange ring holes, and a rotating pipe is slidably connected to the interior of the rotating disc; and the lower end of the rotating pipe is fixedly connected with a flange ring. The device is high in stability, the monitoring angle of the monitoring device can be adjusted, the vertical position of the monitoring device can be adjusted, the applicability is high, and the monitoring efficiency is high.

Description

Technical Field

[0001] The present application belongs to the technical field of foundation pit monitoring technology, and specifically relates to a foundation pit stability level monitoring device. Background Art

[0002] During construction, foundation pits are dug. As the soil within the pit is excavated, the soil on the sidewalls tends to move inward. Horizontal displacement refers to the displacement of the top of the pit wall in a horizontal direction perpendicular to the pit. During construction, horizontal deformation of the soil must be monitored to determine the safety and stability of the support structure and mitigate potential safety hazards.

[0003] For example, the patent with announcement number CN210737622U discloses a foundation pit horizontal displacement monitoring device, which includes a foundation pit, a foundation pit horizontal displacement monitoring module, and a control module. The foundation pit horizontal displacement monitoring module includes a base, a horizontal adjustment mechanism, a vertical adjustment mechanism, and a horizontal displacement detection assembly. The horizontal adjustment mechanism includes a slide rail and a slider. The vertical adjustment mechanism includes a rotating motor, a winding shaft and a wire rope, and a mounting plate. The horizontal displacement detection assembly includes a vertical plate and a first laser ranging sensor, a second laser ranging sensor, and a third laser ranging sensor arranged in sequence from bottom to top. The bottom of the vertical plate is provided with a proximity switch, and the lower portion of the vertical plate is provided with an inclination sensor. The utility model has a simple structure and can provide timely and accurate forecasts so that effective measures can be taken in a timely manner to avoid accidents, providing a guarantee for the effective and safe construction of the foundation pit.

[0004] However, the top of the monitoring device of the foundation pit horizontal displacement monitoring device in this application is connected by a wire rope and lacks other limiting devices. During detection, the wire rope may shake, resulting in errors in the detection data. The detection device is also difficult to adjust the angle and cannot detect all angles of the foundation pit. Utility Model Content

[0005] The purpose of this application is to provide a foundation pit stability horizontal monitoring device to solve the problem that the top of the monitoring device of the above-mentioned foundation pit horizontal displacement monitoring device is connected by a steel wire rope and lacks other limiting devices. During detection, the steel wire rope may shake, resulting in errors in the detection data, and the detection device is difficult to adjust the angle, and cannot detect all angles of the foundation pit.

[0006] The technical scheme adopted by the present application is as follows: a foundation pit stability level monitoring device, comprising a foundation pit, a leveling support is arranged on the top of the foundation pit, a first platform is fixedly connected to the top of the leveling support, a second platform is fixedly connected to the top end of the first platform, a mounting bracket is fixedly connected to the top of the second platform, a winding wheel is fixedly connected to the top end of the mounting bracket, a flange hole is arranged in the interiors of the first platform and the second platform and directly below the winding wheel, a rotating disc is rotatably connected to the surface of the second platform and above the flange hole, a rotating tube is slidably connected to the interior of the rotating disc, a flange is fixedly connected to the lower end of the rotating tube, an extension tube is threadedly connected to the lower end of the rotating tube through the flange, a monitoring tube is arranged on the lower end of the extension tube, a wire holder is rotatably connected to the upper end of the rotating tube, and a steel wire rope is fixedly connected to the interior of the wire holder.

[0007] By adopting the above technical scheme, the interior of the first platform can be provided with a level meter, and the leveling supports at both ends of the first platform are adjusted to keep the first platform horizontally placed above the foundation pit. The interiors of the first platform and the second platform are both provided with flange holes, the inner radius of the flange hole is slightly larger than the outer radius of the flange, and the flange holes are used for limiting the extension tube when the monitoring tube and the extension tube are installed. The rotating disc can rotate on the surface of the second platform, and the rotating disc can be driven to rotate by a motor and a transmission belt. The interior of the rotating disc is provided with an insertion slot for inserting and limiting the rotating tube. The rotating disc is rotated to drive the rotating tube to rotate, and then the extension tube and the monitoring tube at the lower end of the rotating tube are rotated to adjust the angle of the monitoring device. The steel wire rope can be used to pull the rotating tube to move up and down. When the length of the extension tube and the monitoring tube needs to be adjusted, the flanges at both ends of the extension tube can be used to add new extension tubes to lengthen the monitoring device.

[0008] In a preferred embodiment, the side end of the leveling support is threadedly connected with a limiting screw.

[0009] By adopting the above technical scheme, the interior of the leveling support comprises two upper and lower slide rods which can slide, and the slide rods are limited by the limiting screw. The limiting screw can be rotated to release the limitation, and the length of the leveling support at both ends of the first platform can be adjusted.

[0010] In a preferred embodiment, the surface of the second platform is provided with a take-up reel, the surface of the take-up reel is wound with a steel wire rope, and the surface of the winding wheel is slidably connected with the steel wire rope.

[0011] By adopting the above technical scheme, the take-up reel is rotated to wind and unwind the steel wire rope wound on the surface of the take-up reel, so as to control the up and down movement of the rotating tube.

[0012] In a preferred embodiment, the interior of the wire holder is provided with a wire hole.

[0013] By adopting the technical scheme, the wire hole in the terminal block is used for connecting the steel wire rope.

[0014] In a preferred embodiment, the side end of the rotating pipe is fixedly connected with a plug-in rod, the surface of the rotating disc is provided with a plug-in slot, and the inside of the rotating disc is provided with a flange hole.

[0015] By adopting the technical scheme, the flange hole in the rotating disc can be extended through the pipe and the monitoring pipe to move downward, and when the rotating pipe moves downward, the top side end of the rotating pipe is clamped in the plug-in slot in the rotating disc.

[0016] In a preferred embodiment, the lower end of the second platform is fixedly connected with a control console, the top end of the control console is installed with a hydraulic rod, and the top end of the hydraulic rod is fixedly connected with a limiting arc plate.

[0017] By adopting the technical scheme, when the monitoring device and the extension pipe are assembled in the early stage, the limiting arc plate can be used to support the flange at the top of the extension pipe.

[0018] In a preferred embodiment, the bottom of the monitoring pipe is installed with a lower light measuring sensor.

[0019] By adopting the technical scheme, the lower light measuring sensor is used to measure the distance between the monitoring pipe and the bottom of the foundation pit.

[0020] In a preferred embodiment, the side end of the monitoring pipe is installed with a plurality of side light measuring sensors.

[0021] By adopting the technical scheme, the plurality of side light measuring sensors installed at the side end of the monitoring pipe can monitor the inner wall of the foundation pit, and the plurality of side light measuring sensors kept at the same vertical position can monitor the data of the protrusions and depressions of the inner wall at the same position of the foundation pit. The rotating monitoring pipe can monitor each position inside the foundation pit by using the side light measuring sensors.

[0022] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present application are:

[0023] In the present application, the top of the monitoring tube can be first connected to the extension tube and the rotating tube and placed into the interior of the foundation pit through the flange ring hole. The extension tube can be driven downward by retracting and releasing the wire rope, and the flange ring at the top of the extension tube can be placed in the flange ring hole opened inside the second platform to complete the position limiting of the monitoring device, so that the monitoring device can remain stable during operation and will not shake at will. When the length needs to be adjusted, the side end of the extension tube can be clamped by the limiting arc plate at the lower end of the second platform. At this time, the rotating tube at the top of the extension tube can be removed and a new extension length of the extension tube can be added. When the monitoring angle needs to be adjusted, the plug-in rod at the side end of the rotating tube is inserted into the plug-in groove on the surface of the rotating disk. The rotating disk can be rotated to drive the rotating tube to rotate, thereby driving the extension tube and the monitoring tube to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a foundation pit stability level monitoring device in this application;

[0025] Figure 2 This is a schematic diagram of the monitoring device installation platform structure in this application;

[0026] Figure 3 This is a diagram of the rotating tube and some of its adjacent structures in this application;

[0027] Figure 4 This is a diagram of the limiting arc plate and its partial adjacent structure in this application.

[0028] Markings in the figure: 1. Foundation pit; 2. Leveling bracket; 3. Limit screw; 4. First platform; 5. Second platform; 6. Flange ring hole; 7. Extension pipe; 8. Control console; 9. Turntable; 10. Take-up wheel; 11. Mounting frame; 12. Winding wheel; 13. Wire rope; 14. Terminal block; 15. Rotating tube; 16. Flange ring; 17. Monitoring tube; 18. Lower light sensor; 19. Side light sensor; 20. Wire hole; 21. Connecting rod; 22. Connecting slot; 23. Limit arc plate; 24. Hydraulic rod. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] Example:

[0031] Reference Figures 1-4, including foundation pit 1, the top of foundation pit 1 is provided with leveling support 2, the top of leveling support 2 is fixedly connected with first platform 4, the top of first platform 4 is fixedly connected with second platform 5, the top of second platform 5 is fixedly connected with mounting bracket 11, the top of mounting bracket 11 is fixedly connected with winding wheel 12, the inside of first platform 4 and second platform 5 and below winding wheel 12 is provided with flange hole 6, the surface of second platform 5 and above flange hole 6 is rotatably connected with rotating disc 9, the inside of rotating disc 9 is slidably connected with rotating tube 15, the lower end of rotating tube 15 is fixedly connected with flange 16, the lower end of rotating tube 15 is screw-connected with extension tube 7 through flange 16, the lower end of extension tube 7 is provided with monitoring tube 17, the upper end of rotating tube 15 is rotatably connected with wire holder 14, the inside of wire holder 14 is fixedly connected with steel wire rope 13. Leveling support 2 is used for supporting first platform 4, the inside of first platform 4 can be provided with level gauge, and the leveling support 2 at both ends of first platform 4 is adjusted so that first platform 4 is horizontally placed above foundation pit 1. The inside of first platform 4 and second platform 5 is provided with flange hole 6, the inner radius of flange hole 6 is slightly larger than the outer radius of flange 16, and flange 16 at both ends of extension tube 7 is inserted into the inside of flange hole 6 for limiting when monitoring tube 17 and extension tube 7 are installed.

[0032] The rotating disc 9 can rotate on the surface of the second platform 5, and can drive the rotating disc 9 to rotate through a motor and a transmission belt. The rotating disc 9 is internally provided with a plug-in groove 22 for plugging and limiting the rotating pipe 15. The rotating disc 9 can drive the rotating pipe 15 to rotate by rotating the rotating disc 9, and in turn drives the extension pipe 7 and the monitoring pipe 17 at the lower end of the rotating pipe 15 to rotate, so as to adjust the angle of the monitoring device. The steel wire rope 13 can be used to pull the rotating pipe 15 to move up and down. When it is necessary to adjust the length of the extension pipe 7 and the monitoring pipe 17, a new extension pipe 7 can be added to the flange ring 16 at both ends of the extension pipe 7, so as to extend the length of the monitoring device. In use, the top of the monitoring pipe 17 can be connected with the extension pipe 7 and the rotating pipe 15 and passed through the flange hole 6 and put into the inside of the foundation pit 1. The extension pipe 7 is driven to move downward by winding and unwinding the steel wire rope 13, and the flange ring 16 at the top of the extension pipe 7 is placed in the flange hole 6 internally provided in the second platform 5, so as to limit the monitoring device. The monitoring device can be kept stable during work and will not shake randomly. When it is necessary to adjust the length, the side end of the extension pipe 7 can be clamped by the limiting arc plate 23 at the lower end of the second platform 5. At this time, the rotating pipe 15 at the top of the extension pipe 7 can be removed, and the flange ring 16 at the top end of the extension pipe 7 will fall to the top of the limiting arc plate 23 at both sides of the extension pipe 7 and be supported by the limiting arc plate 23. Then, a new extension pipe 7 is added to the flange ring 16, and the uppermost extension pipe 7 is reconnected with the rotating pipe 15. After the limiting of the limiting arc plate 23 is released, the extension pipe 7 is moved downward again. When the plug-in rod 21 at the side end of the rotating pipe 15 is clamped into the plug-in groove 22 on the surface of the rotating disc 9, the rotating disc 9 can be rotated to drive the rotating pipe 15 to rotate, and in turn drive the extension pipe 7 and the monitoring pipe 17 to rotate, so as to adjust the angle of the monitoring device.

[0033] With reference to Figure 1 The side end of the leveling support 2 is threadedly connected with a limiting screw rod 3. The inside of the leveling support 2 comprises two slideable sleeve rods, which are limited by the limiting screw rod 3. The limiting screw rod 3 can be rotated to release the limitation, and the length of the leveling support 2 at both ends of the first platform 4 can be adjusted.

[0034] With reference to Figure 2 The surface of the second platform 5 is provided with a take-up reel 10, and the surface of the take-up reel 10 is wound with a steel wire rope 13. The surface of the winding reel 12 is slidably connected with the steel wire rope 13. The side end of the take-up reel 10 is provided with a motor, which can rotate the take-up reel 10 to wind and unwind the steel wire rope 13 wound on the surface of the take-up reel 10, so as to control the up and down movement of the rotating pipe 15.

[0035] With reference to Figure 3 The inside of the wire holder 14 is provided with a wire hole 20. The wire holder 14 can rotate on the surface of the rotating pipe 15, and the wire hole 20 internally provided in the wire holder 14 is used to connect the steel wire rope 13.

[0036] With reference to Figure 3The side end of the rotating pipe 15 is fixedly connected with a plug-in rod 21, the surface of the rotating disc 9 is provided with a plug-in groove 22, and the inside of the rotating disc 9 is provided with a flange hole 6. The flange hole 6 in the rotating disc 9 can extend the pipe 7 and the monitoring pipe 17 to move downward, and when the rotating pipe 15 moves downward, the top side end of the rotating pipe 15 is clamped in the plug-in groove 22 in the rotating disc 9, at this time, rotating the rotating disc 9 can drive the rotating pipe 15 to rotate.

[0037] With reference to Figure 2 and Figure 4 The lower end of the second platform 5 is fixedly connected with a control console 8, the top end of the control console 8 is installed with a hydraulic rod 24, and the top end of the hydraulic rod 24 is fixedly connected with a limiting arc plate 23. Starting the control console 8 can control the hydraulic rod 24 to drive the limiting arc plate 23 to move left and right, and when assembling the monitoring device and the extension pipe 7 in the early stage, the limiting arc plate 23 can be used to support the flange 16 at the top of the extension pipe 7.

[0038] With reference to Figure 1 The bottom of the monitoring pipe 17 is installed with a lower light measuring sensor 18. The lower light measuring sensor 18 is used to measure the distance between the monitoring pipe 17 and the bottom of the foundation pit, so as to avoid the collision between the bottom of the device and the foundation pit.

[0039] With reference to Figure 1 The side end of the monitoring pipe 17 is installed with a plurality of side light measuring sensors 19. The plurality of side light measuring sensors 19 installed at the side end of the monitoring pipe 17 can monitor the inner wall of the foundation pit, and the plurality of side light measuring sensors 19 kept at the same vertical position can monitor the data of the protrusions and depressions of the inner wall at the same position of the foundation pit. Rotating the monitoring pipe 17 can use the side light measuring sensors 19 to monitor each position inside the foundation pit.

[0040] The implementation principle of the foundation pit stability level monitoring device embodiment of the application is as follows: before use, the first platform 4 can be installed first, and the first platform 4 is adjusted to keep horizontal. In use, the top of the monitoring pipe 17 is connected with the extension pipe 7 and the rotating pipe 15, and is put into the inside of the foundation pit 1 through the flange hole 6, the extension pipe 7 is driven downward by the retractable steel wire rope 13, the flange 16 at the top of the extension pipe 7 is placed in the flange hole 6 opened in the second platform 5, the limiting of the monitoring device is completed, and the monitoring device can keep stable during work and will not shake randomly. When the length needs to be adjusted, the side end of the extension pipe 7 can be clamped by the limiting arc plate 23 at the lower end of the second platform 5, at this time, the rotating pipe 15 at the top of the extension pipe 7 can be removed, and the flange 16 at the top end of the extension pipe 7 will fall to the top of the limiting arc plate 23 on both sides of the extension pipe 7, and is supported by the limiting arc plate 23, then a new extension pipe 7 is added by the flange 16, the uppermost extension pipe 7 is connected with the rotating pipe 15 again, the limiting of the limiting arc plate 23 is released, and then the extension pipe 7 is moved downward. When the plug-in rod 21 at the side end of the rotating pipe 15 is clamped into the plug-in groove 22 on the surface of the rotating disc 9, the rotating disc 9 can be rotated to drive the rotating pipe 15 to rotate, and then the extension pipe 7 and the monitoring pipe 17 are rotated, and the angle of the monitoring device is adjusted. The plurality of side light measurement sensors 19 installed at the side end of the monitoring pipe 17 can monitor the inner wall of the foundation pit, the plurality of side light measurement sensors 19 keep in the same vertical position, and the data of the protrusions and depressions of the inner wall at the same position of the foundation pit can be monitored. The rotating monitoring pipe 17 can monitor each position inside the foundation pit by the side light measurement sensor 19. The device has strong stability, can adjust the monitoring angle of the monitoring device, adjust the up-down position of the monitoring device, has strong applicability, and has high monitoring efficiency.

[0041] The above embodiments are only used to illustrate the technical solutions of the application, but not limit the application; although the application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A device for monitoring the level of stability of a foundation pit (1), characterized in that: The top of the foundation pit (1) is provided with a leveling support (2), the top of the leveling support (2) is fixedly connected with a first platform (4), the top of the first platform (4) is fixedly connected with a second platform (5), the top of the second platform (5) is fixedly connected with a mounting rack (11), the top of the mounting rack (11) is fixedly connected with a winding wheel (12), the inside of the first platform (4) and the second platform (5) and below the winding wheel (12) is provided with a flange hole (6), the surface of the second platform (5) and above the flange hole (6) is rotatably connected with a rotating disc (9), the inside of the rotating disc (9) is slidably connected with a rotating tube (15), the lower end of the rotating tube (15) is fixedly connected with a flange (16), the lower end of the rotating tube (15) is threadedly connected with an extension tube (7) through the flange (16), the lower end of the extension tube (7) is provided with a monitoring tube (17), the upper end of the rotating tube (15) is rotatably connected with a wire holder (14), the inside of the wire holder (14) is fixedly connected with a steel wire rope (13).

2. The device for monitoring the stability of a foundation pit according to claim 1, characterized in that: The side end of the leveling support (2) is threadedly connected with a limiting screw rod (3).

3. The device for monitoring the stability of a foundation pit according to claim 1, characterized in that: The surface of the second platform (5) is provided with a take-up wheel (10), the surface of the take-up wheel (10) is wound with a steel wire rope (13), and the surface of the winding wheel (12) is slidably connected with a steel wire rope (13).

4. The device for monitoring the stability of a foundation pit according to claim 1, characterized in that: The inside of the wire holder (14) is provided with a wire hole (20).

5. The device for monitoring the stability of a foundation pit according to claim 1, wherein: The side end of the rotating tube (15) is fixedly connected with a plug-in rod (21), the surface of the rotating disc (9) is provided with a plug-in groove (22), and the inside of the rotating disc (9) is provided with a flange hole (6).

6. The device for monitoring the stability of a foundation pit according to claim 1, wherein: The lower end of the second platform (5) is fixedly connected with a control console (8), the top of the control console (8) is provided with a hydraulic rod (24), and the top of the hydraulic rod (24) is fixedly connected with a limiting arc plate (23).

7. The device for monitoring the stability of a foundation pit according to claim 1, characterized in that: The bottom of the monitoring tube (17) is provided with a lower light measuring sensor (18).

8. The device for monitoring the stability of a foundation pit according to claim 1, characterized in that: The side end of the monitoring tube (17) is provided with a plurality of side light measuring sensors (19).

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