Foundation pit side wall movable monitoring device

Abstract

The utility model discloses a movable monitoring device for a side wall of a foundation pit, which relates to the technical field of foundation pit monitoring and comprises a support frame and a displacement monitoring mechanism mounted at the top of the support frame and used for monitoring displacement of the side wall of the foundation pit, a bottom plate is fixedly arranged at the bottom of the support frame, and a plurality of universal wheels are arranged at the bottom of the bottom plate. And an adjusting mechanism which is used for adjusting the displacement monitoring mechanism to be horizontal and can adjust the height of the device is arranged in the bottom plate. Through the arrangement of the plurality of universal wheels, people can conveniently push the device to move, the device does not need to be carried in the displacement monitoring process of the side wall of a foundation pit, labor is saved, convenience is achieved, people can shake a rocking handle to drive a corresponding threaded rod to rotate, one corner of the bottom plate is lifted, people can conveniently observe the universal level bubble, and the foundation pit side wall displacement monitoring device is convenient to use. And a corresponding rocking handle is rocked to adjust components such as the displacement monitoring mechanism to be horizontal, so that deviation of monitoring data caused by monitoring the side wall of the foundation pit on the uneven ground by the device is avoided, and the monitoring accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit monitoring, in particular to a mobile monitoring device for a foundation pit side wall. Background Art

[0002] Foundation pit refers to the basic space below the ground excavated for the construction of building foundations and basements. It is a typical geotechnical engineering structure and is quite common in civil engineering and transportation engineering. Foundation pit construction is a complex process of excavation and reinforcement of rock and soil. Under normal circumstances, the instability and collapse of foundation pits are mainly manifested in the continuous increase of side wall deformation and resulting in damage. Therefore, monitoring the displacement of the side walls of foundation pits during construction plays a vital role in ensuring safety. The monitoring means of the displacement of the side walls of foundation pits in the prior art mainly adopts inclinometers. On the one hand, this means is relatively expensive. On the other hand, it is necessary to install inclinometers by drilling holes in the soil layer or pre-burying them in the retaining piles. The inclinometer process is often unable to be carried out because the soil body cannot be drilled or the inclinometer is blocked. In the prior art, there is also a total station as a monitoring means for the displacement of the side walls of foundation pits. The equipment is expensive and inconvenient to monitor.

[0003] In this regard, the patent with announcement number CN204286365U discloses "a foundation pit side wall displacement monitoring device, comprising: a support frame, a base placed on the support frame, a vertical frame installed on the base through a first rotating shaft, a transverse frame installed on the vertical frame through a second rotating shaft, and a laser rangefinder fixed on the transverse frame; the utility model can quickly and simultaneously judge the deformation of multiple parts of the foundation pit, which is helpful to analyze the stress characteristics and deformation trends of the foundation pit, and further facilitates a better safety assessment of the foundation pit."

[0004] Regarding the above-mentioned related technologies, the inventor believes that they are placed on the ground through a supporting frame, so people need to lift and carry the device when moving, and there are many monitoring stations on the side walls of the foundation pit, so people need to carry the device back and forth during monitoring, which is laborious and inconvenient, and therefore needs to be improved. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a mobile monitoring device for the side wall of a foundation pit. The specific technical solution is as follows:

[0006] A mobile monitoring device for the side wall of a foundation pit comprises a supporting frame, a displacement monitoring mechanism installed on the top of the supporting frame and used for monitoring the displacement of the side wall of the foundation pit, a bottom plate is fixedly provided at the bottom of the supporting frame, a plurality of universal wheels are provided at the bottom of the bottom plate, an adjusting mechanism for adjusting the displacement monitoring mechanism to a horizontal level and adjusting the height of the device is provided in the bottom plate, the adjusting mechanism comprises a plurality of threaded rods threaded at the corners of the bottom plate, and a crank handle fixedly provided at the top of the threaded rod, the universal wheel is fixedly installed at the bottom of the threaded rod, and a universal level bubble is fixedly provided at the center of the top of the bottom plate.

[0007] By adopting the above technical solution and setting a number of universal wheels, people can push the device to move conveniently, so that the device does not need to be carried during the displacement monitoring of the side wall of the foundation pit, which is labor-saving and convenient.

[0008] Optionally, a plurality of threaded holes are opened at the corners of the base plate, the threaded rods are threadedly connected in the threaded holes of the base plate, a connecting plate is fixedly provided at the bottom end of the threaded rods, and the universal wheel is fixedly mounted on the bottom surface of the connecting plate.

[0009] By adopting the above technical solution, when people shake the handle, the corresponding threaded rod and the universal wheel will be driven to rotate. At this time, under the connection of the threaded hole, a corner of the bottom plate will be raised and lowered.

[0010] Optionally, a lubricating oil groove is provided at the top of the threaded hole for lubricating the connection between the base plate and the threaded rod by adding lubricating oil, and an annular sponge for absorbing oil and continuously lubricating the threaded rod is fixedly provided in the lubricating oil groove of the base plate.

[0011] By adopting the above technical solution, the lubricating oil in the lubricating oil groove can lubricate the connection between the bottom plate and the threaded rod, thereby reducing the resistance of the threaded rod when it rotates.

[0012] Optionally, a plurality of iron plates for covering the lubricating oil grooves are provided on the top of the base plate, and a plurality of magnet blocks magnetically attracted to the iron plates are fixedly provided on the top of the base plate.

[0013] By adopting the above technical solution, the iron plate can cover the lubricating oil groove, making it difficult for foreign matter from the outside to enter the lubricating oil groove and contaminate the lubricating oil.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. Through the setting of several universal wheels, people can push the device to move conveniently, so that the device does not need to be carried during the displacement monitoring process of the side wall of the foundation pit, which is more labor-saving and convenient. People shake the handle to drive the corresponding threaded rod to rotate, thereby raising and lowering a corner of the bottom plate, which is convenient for people to adjust the displacement monitoring mechanism and other components to the level by observing the universal level bubble and shaking the corresponding handle, avoiding the device from monitoring the side wall of the foundation pit on an uneven ground, which may cause deviation in the monitoring data and improve the accuracy of monitoring.

[0016] 2. By shaking the handle, the base plate, displacement monitoring mechanism and other components can also be driven to rise and fall, which is convenient for people to adjust the overall height of the device. The lubricating oil in the lubricating oil tank can lubricate the connection between the base plate and the threaded rod, reducing the resistance of the threaded rod when it rotates. The annular sponge can absorb excess lubricating oil in the lubricating oil tank and slowly apply it to the threaded rod when the threaded rod rotates, which is convenient for continuous lubrication of the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the overall structure of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the support frame and the bottom plate of the utility model;

[0019] Figure 3 It is a top view cross-sectional view of the support frame and the bottom plate of the utility model;

[0020] Figure 4 It is an internal connection diagram of the bottom plate and the threaded rod of the utility model.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. Support frame; 11. Displacement monitoring mechanism; 2. Bottom plate; 21. Threaded hole; 3. Universal wheel; 4. Threaded rod; 41. Crank handle; 42. Connecting plate; 5. Universal level bubble; 6. Lubricating oil tank; 61. Annular sponge; 62. Iron plate; 63. Magnet block. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] The utility model embodiment discloses a mobile monitoring device for the side wall of a foundation pit, referring to Figure 1 , including a supporting frame 1, and a displacement monitoring mechanism 11 installed on the top of the supporting frame 1 and used for monitoring the displacement of the side wall of the foundation pit. The supporting frame 1 and the displacement monitoring mechanism 11 constitute an existing foundation pit side wall displacement monitoring device, which can monitor the displacement of the side wall of the foundation pit. Its internal structure and monitoring principle have been disclosed and will not be elaborated here.

[0024] Reference Figure 1-2A bottom plate 2 is fixedly provided at the bottom of the support frame 1, and a plurality of universal wheels 3 are provided at the bottom of the bottom plate 2. The bottom plate 2 can support the support frame 1 and the displacement monitoring mechanism 11. The universal wheels 3 can be self-locking universal wheels. The universal wheels 3 are convenient for people to push the device to move, so that when people monitor many foundation pit side wall monitoring stations one by one, they do not need to carry the device, but only need to push the device to move.

[0025] Reference Figure 2-4 The bottom plate 2 is provided with an adjustment mechanism for adjusting the displacement monitoring mechanism 11 to a horizontal level and adjusting the height of the device. The adjustment mechanism includes a plurality of threaded rods 4 threaded at the corners of the bottom plate 2, and a crank 41 fixedly arranged at the top of the threaded rod 4. The universal wheel 3 is fixedly installed at the bottom of the threaded rod 4. A plurality of threaded holes 21 are provided at the corners of the bottom plate 2. The threaded rod 4 is threadedly connected in the threaded holes 21 of the bottom plate 2. The bottom plate 2 can connect and limit the threaded rod 4 through the threaded holes 21. A connecting plate 42 is fixedly arranged at the bottom end of the threaded rod 4. The universal wheel 3 is fixedly installed on the bottom surface of the connecting plate 42. The connecting plate 42 can connect the threaded rod 4 and the universal wheel 3.

[0026] When people shake the crank 41 , the corresponding threaded rod 4 and the universal wheel 3 will be driven to rotate. At this time, under the connection of the threaded hole 21 , a corner of the bottom plate 2 will be raised or lowered.

[0027] Reference Figure 2-4 A universal level bubble 5 is fixed at the top center of the base plate 2. People can observe the universal level bubble 5 and shake the corresponding crank 41 to adjust the displacement monitoring mechanism 11 and the supporting frame 1 and other components to a horizontal level. For example, if the left side of the base plate 2 is higher, people can shake the corresponding crank 41 on the left side of the base plate 2 to lower the left side of the base plate 2, thereby leveling the displacement monitoring mechanism 11 and other components. The displacement monitoring mechanism 11 after leveling will not tilt and cause the monitored data to be too large or too small, thereby improving the monitoring accuracy and allowing the device to be used on uneven ground.

[0028] Reference Figure 4 A lubricating oil groove 6 is provided at the top of the threaded hole 21 for lubricating the connection between the base plate 2 and the threaded rod 4 by adding lubricating oil. The lubricating oil in the lubricating oil groove 6 can lubricate the connection between the base plate 2 and the threaded rod 4, thereby reducing the resistance of the threaded rod 4 when rotating.

[0029] Reference Figure 4 An annular sponge 61 for absorbing oil and continuously lubricating the threaded rod 4 is fixedly provided in the lubricating oil groove 6 of the bottom plate 2. The annular sponge 61 is in contact with the outer wall of the threaded rod 4. The annular sponge 61 can absorb excess lubricating oil in the lubricating oil groove 6 and slowly coat the threaded rod 4 when the threaded rod 4 rotates, thereby facilitating continuous lubrication of the threaded rod 4.

[0030] Reference Figure 4 A plurality of iron plates 62 for covering the lubricating oil grooves 6 are provided on the top of the bottom plate 2. The iron plates 62 are fitted and abutted against the top of the bottom plate 2. The iron plates 62 can cover the lubricating oil grooves 6, so that foreign matter is not easy to enter the lubricating oil grooves 6 and contaminate the lubricating oil.

[0031] Reference Figure 4 A plurality of magnet blocks 63 are fixed on the top of the bottom plate 2 and are magnetically attracted to the iron plate 62. The magnet blocks 63 can fix the bottom plate 2 by magnetic attraction, so that when the device moves, the iron plate 62 will not move randomly and collide with the bottom plate 2 to produce noise. People can also pull the bottom plate 2 upward with force to separate the bottom plate 2 from the magnet blocks 63 to add lubricating oil to the lubricating oil tank 6.

[0032] The implementation principle of a mobile monitoring device for the side wall of a foundation pit according to an embodiment of the utility model is as follows:

[0033] When in use, people can push the device to the monitoring site by rolling the universal wheel 3. When the ground at the monitoring site is uneven, people can observe the direction of the bubble in the universal level bubble 5 and shake the corresponding crank 41 to drive the corresponding threaded rod 4 and the universal wheel 3 to rotate. At this time, under the connection of the threaded hole 21, one corner of the bottom plate 2 will be raised and lowered. By shaking the corresponding multiple cranks 41, the displacement monitoring mechanism 11 and other components can be leveled. After leveling, the displacement monitoring mechanism 11 will not tilt and cause the monitored data to be too large or too small, thereby improving the accuracy of monitoring;

[0034] Then people can monitor the displacement of the side wall of the foundation pit through the displacement monitoring mechanism 11;

[0035] When people shake all the cranks 41, they can drive the bottom plate 2, the displacement monitoring mechanism 11 and other components to move up and down, so that people can adjust the overall height of the device.

[0036] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mobile monitoring device for a foundation pit side wall, comprising a support frame (1), and a displacement monitoring mechanism (11) mounted on the top of the support frame (1) and used for monitoring the displacement of the foundation pit side wall, characterized in that: A bottom plate (2) is fixedly provided at the bottom of the support frame (1), a plurality of universal wheels (3) are provided at the bottom of the bottom plate (2), an adjustment mechanism for adjusting the displacement monitoring mechanism (11) to a horizontal level and adjusting the height of the device is provided inside the bottom plate (2), the adjustment mechanism comprising a plurality of threaded rods (4) threaded at the corners of the bottom plate (2), and a crank handle (41) fixedly provided at the top of the threaded rods (4), the universal wheels (3) are fixedly mounted at the bottom of the threaded rods (4), and a universal level bubble (5) is fixedly provided at the center of the top of the bottom plate (2).

2. A mobile monitoring device for the sidewall of a foundation pit according to claim 1, characterized in that: A plurality of threaded holes (21) are provided at the corners of the bottom plate (2), and the threaded rods (4) are threadedly connected in the threaded holes (21) of the bottom plate (2).

3. The mobile monitoring device for the sidewall of a foundation pit according to claim 1, characterized in that: A connecting plate (42) is fixedly provided at the bottom end of the threaded rod (4), and the universal wheel (3) is fixedly mounted on the bottom surface of the connecting plate (42).

4. The mobile monitoring device for the sidewall of a foundation pit according to claim 2, characterized in that: A lubricating oil groove (6) is provided at the top of the threaded hole (21) for lubricating the connection between the bottom plate (2) and the threaded rod (4) by adding lubricating oil.

5. The mobile monitoring device for the sidewall of a foundation pit according to claim 4, characterized in that: An annular sponge (61) for absorbing oil and continuously lubricating the threaded rod (4) is fixedly disposed in the lubricating oil groove (6) of the bottom plate (2).

6. The mobile monitoring device for the sidewall of a foundation pit according to claim 5, characterized in that: A plurality of iron plates (62) for covering the lubricating oil grooves (6) are provided on the top of the bottom plate (2).

7. The mobile monitoring device for the sidewall of a foundation pit according to claim 6, characterized in that: A plurality of magnet blocks (63) that are magnetically attracted to the iron plate (62) are fixedly provided on the top of the bottom plate (2).

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