Auxiliary monitoring device for displacement and settlement of foundation pit support

Abstract

The invention relates to a foundation pit support displacement settlement auxiliary monitoring device, and belongs to the technical field of foundation pit support monitoring, the foundation pit support displacement settlement auxiliary monitoring device comprises an inclinometer pipe and an inclinometer, the inclinometer comprises a first section and a plurality of unit sections which are connected in series, a guide semi-ring is slidably arranged in the inclinometer pipe, and the guide semi-ring slides in the length direction of the inclinometer pipe; the guide semi-ring is positioned between the inclinometer pipe and the outer wall of the inclinometer; inclined supporting rods, traction wheels and first motors are arranged on the guide semi-rings, one ends of the inclined supporting rods are fixedly connected with the guide semi-rings, the other ends of the inclined supporting rods are rotationally connected with the traction wheels, the traction wheels abut against the inner walls of the inclined side pipes in a rolling mode, and the first motors are used for driving the traction wheels to rotate; a positioning groove is formed in the first section, the positioning groove is formed in the length direction of the first section and penetrates through the end face of the end, close to the unit sections, of the first section, a positioning block is fixed to the guiding semi-ring, the end of the positioning block is inserted and embedded into the positioning groove and slides in the length direction of the positioning groove, and the cable between the adjacent unit sections is more stretched in the using process.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit support monitoring, and in particular to a foundation pit support displacement and settlement auxiliary monitoring device. Background Art

[0002] At present, the monitoring of displacement and settlement of foundation pit support is of great significance. It can timely detect abnormal changes in the support structure, prevent accidents such as collapse, ensure the safety of construction workers and surrounding buildings, provide data support for the smooth progress of the project, and ensure that the foundation pit and surrounding environment are in a safe and controllable state.

[0003] The foundation pit support monitoring adopts a tandem inclinometer. The interior is composed of high-precision angle sensitive elements and chips, and the exterior is stainless steel components and pulley components. It adopts a 485 bus series setting, a segmented design, and consists of multiple detachable series inclinometer segments and sensors. It can be flexibly assembled on site according to the depth of the inclinometer well. Its sensor has a built-in MEMS three-axis acceleration chip to observe the relative horizontal three-axis inclination angle of slopes, foundation pits, railways, bridges, etc., and it can also be suitable for long-term monitoring of landslide geological activities with the automatic real-time monitoring system. When the inclinometer is used, a hole is drilled at the selected foundation measurement location, the inclinometer tube is lowered into the borehole, and then the assembled tandem inclinometer is lowered into the inclinometer tube.

[0004] In the process of lowering the tandem inclinometer, the later inserted unit sections continuously push downward the earlier inserted unit sections in the inclinometer tube. Since the cables with steel wires between adjacent unit sections are all soft steel wires, there is a defect of cable extrusion between adjacent unit sections. Summary of the invention

[0005] In order to make the cables between adjacent unit sections of the tandem inclinometer more stretched during use and reduce squeezing, the present application provides a foundation pit support displacement and settlement auxiliary monitoring device.

[0006] The present application provides a foundation pit support displacement settlement auxiliary monitoring device that adopts the following technical solutions: A foundation pit support displacement and settlement auxiliary monitoring device comprises an inclinometer tube and an inclinometer located in the inclinometer tube, the inclinometer comprises a first section and a plurality of unit sections arranged in series, a guide semi-ring is slidably arranged in the inclinometer tube, the guide semi-ring slides along the length direction of the inclinometer tube, and the guide semi-ring is located between the inclinometer tube and the outer wall of the inclinometer; an oblique support rod, a traction wheel and a first motor are arranged on the guide semi-ring, one end of the oblique support rod is fixedly connected to the guide semi-ring, and the other end is rotatably connected to the traction wheel, the traction wheel rolls against the inner wall of the oblique side tube, and the first motor is fixed on the guide semi-ring to drive the traction wheel to rotate; a positioning groove is provided on the first section, the positioning groove is provided along the length direction of the first section and penetrates the end face of the first section close to one end of the unit section, a positioning block is fixed on the guide semi-ring towards the side wall of the inclinometer, and the end of the positioning block is inserted into the positioning groove and slides along the length direction of the positioning groove.

[0007] By adopting the above technical solution, when the inclinometer is lowered into the inclinometer tube, the first motor is started, and the first motor drives the traction wheel to rotate, and the traction wheel rolls and abuts against the inner wall of the inclinometer tube, thereby driving the guide semi-ring to slide along the length direction of the inclinometer tube. Since the positioning block on the guide semi-ring is inserted into the positioning groove of the first section, when the guide semi-ring moves, it will drive the first section and subsequent unit sections in series to slide down smoothly through the positioning block. In this process, the guide semi-ring can play a supporting and guiding role, avoiding the cables between adjacent unit sections from being damaged due to mutual squeezing, making the cables more stretched during use, reducing squeezing, and improving the accuracy and stability of the inclinometer monitoring data.

[0008] Optionally, the inclinometer is provided with a centering component, which includes a coil spring, a connecting rod and a rolling ball. Two rolling balls are provided and are distributed at both ends of the connecting rod and correspond to the ends of the connecting rod one by one. The inclinometer is provided with a long hole for accommodating the connecting rod. The connecting rod passes through the long hole. The connecting rod is rotatably connected to the inclinometer and the rotating shaft is located in the long hole. The coil spring is used for rotating the end of the connecting rod out of the long hole; the rolling ball rolls against the inner wall of the inclinometer tube.

[0009] By adopting the above technical solution, when the inclinometer slides down in the inclinometer tube, the coil spring drives the end of the connecting rod to rotate out of the long hole, so that the rolling balls at both ends roll and abut against the inner wall of the inclinometer tube. When the connecting rod is not penetrated by the central axis of the inclinometer at the midpoint, the centering component can leave a distance between the outer wall of the inclinometer and the inner wall of the inclinometer tube to avoid scratching; when the connecting rod is penetrated by the central axis of the inclinometer at the midpoint, the centering component can play a role in centering the inclinometer, ensuring that the inclinometer is always in the center position in the inclinometer tube, avoiding collision or scratching between the inclinometer and the inner wall of the inclinometer tube, further ensuring the stability of the inclinometer lowering process, which is conducive to improving the accuracy of monitoring data, and at the same time can reduce damage to the inclinometer and the inclinometer tube.

[0010] Optionally, the ball is rotatably connected to the connecting rod, and the ball rotates 360° relative to the connecting rod.

[0011] By adopting the above technical solution, the ball can rotate 360° relative to the connecting rod. This enables the rolling ball to better adapt to the shape change of the inner wall of the inclinometer tube when rolling against it, reduces the friction force, and lowers the energy loss. As a result, it ensures that the inclinometer can move more smoothly inside the inclinometer tube, further improving the stability and reliability of the inclinometer during the lowering and working processes.

[0012] Optionally, an identification groove is provided on the outer wall of the unit section. When the identification groove faces the inside of the foundation pit, the positive displacement measured by the unit section is the displacement moving towards the inside of the foundation pit.

[0013] By adopting the above technical solution, during the monitoring process, the staff can intuitively understand the direction of the unit section by observing the position of the identification groove. When the identification groove faces the inside of the foundation pit, the positive displacement measured by the unit section is the displacement moving towards the inside of the foundation pit. This design facilitates the staff to quickly and accurately read and understand the monitoring data, improves the efficiency and accuracy of data interpretation, and helps to make timely and accurate judgments on the displacement and settlement conditions of the foundation pit support.

[0014] Optionally, the identification groove is opened along the length direction of the unit section and penetrates through the end faces at both ends of the unit section. The width of the identification groove is the same as the width of the positioning groove; a position-adjusting half-ring is slidably arranged on the guiding half-ring, and the position-adjusting half-ring slides along the circumferential direction of the inner wall of the inclinometer tube; an adsorption component is provided on the position-adjusting half-ring for forming a temporary connection state with the outer wall of the unit section.

[0015] By adopting the above technical solution, when it is necessary to adjust the direction of the unit section, the position-adjusting half-ring can slide along the circumferential direction of the inner wall of the inclinometer tube on the guiding half-ring. The adsorption component on the position-adjusting half-ring can form a temporary connection state with the outer wall of the unit section, thereby driving the unit section to rotate and realizing the precise adjustment of the direction of the unit section. The design that the identification groove is opened along the length direction of the unit section and penetrates through both ends, and its width is the same as that of the positioning groove, in cooperation with the adjustment function of the position-adjusting half-ring, provides convenient conditions for precisely adjusting the direction of the unit section, enabling the inclinometer to more flexibly adjust the monitoring direction in the face of different monitoring requirements, improving the pertinence and effectiveness of monitoring, and also enabling the guiding half-ring to slide out of the inclinometer tube along the positioning groove and the identification groove after the inclinometer is placed at the designated position.

[0016] Optionally, the inside of the guiding half-ring is hollow, a second motor is fixed on the inner wall of the guiding half-ring, and a gear is fixed on the output end of the second motor; an arc-shaped rack is fixed on the position-adjusting half-ring. Both the arc-shaped rack and the guiding half-ring are arc-shaped and have the same radian. The teeth of the arc-shaped rack penetrate to the inside of the guiding half-ring and are slidably arranged relative to the guiding half-ring, and the gear meshes with the arc-shaped rack.

[0017] By adopting the above technical solution, the second motor is started, and the gear at the output end of the second motor rotates. Since the gear meshes with the arc-shaped rack, and the arc-shaped rack is fixed on the adjustment half-ring, when the gear rotates, it can drive the arc-shaped rack to slide along the inner wall of the guiding half-ring, thereby realizing the precise rotation of the adjustment half-ring along the circumferential direction of the inner wall of the inclinometer tube. This structural design makes the rotation control of the adjustment half-ring more precise and stable, can provide reliable power support for the adjustment of the unit joint direction, and ensure the accuracy and efficiency when adjusting the unit joint direction.

[0018] Optionally, the adsorption assembly includes an electromagnet, a limiting cylinder, and a first spring. The limiting cylinder is fixed on the adjustment half-ring and its open end faces the unit joint. The first spring is located inside the limiting cylinder, and the electromagnet is slidably arranged inside the limiting cylinder. One end of the first spring is fixedly connected to the inner wall of the limiting cylinder, and the other end is fixedly connected to the electromagnet; when the electromagnet is energized, it magnetically adsorbs to the outer wall of the unit joint, and the end of the electromagnet away from the unit joint is located inside the limiting cylinder.

[0019] By adopting the above technical solution, when the electromagnet is energized, the electromagnet generates magnetism and magnetically adsorbs to the outer wall of the unit joint, thereby connecting the adjustment half-ring and the unit joint together. At this time, by rotating the adjustment half-ring, the unit joint can be driven to rotate. The limiting cylinder plays a role in limiting the electromagnet to prevent the electromagnet from moving excessively. The first spring helps the electromagnet to reset when the electromagnet is de-energized, enabling the adsorption assembly to flexibly achieve adsorption and separation from the unit joint, facilitating the adjustment of the unit joint direction. Moreover, this structure is simple and easy to control, and can meet the actual requirements for adjusting the unit joint direction.

[0020] Optionally, the adsorption assembly includes an electric cylinder and a suction cup. The electric cylinder is fixed on the adjustment half-ring, and the piston end of the electric cylinder pushes the suction cup to move in the direction of approaching or departing from the unit joint.

[0021] By adopting the above technical solution, after the electric cylinder is started, its piston end pushes the suction cup to move in the direction of approaching the unit joint. When the suction cup contacts the outer wall of the unit joint, the suction cup can adsorb to the outer wall of the unit joint. By controlling the telescopic movement of the piston end of the electric cylinder, it is convenient to achieve the adsorption and separation of the suction cup and the unit joint, and then drive the unit joint to rotate to adjust its direction. The design of this adsorption assembly has a simple structure and quick action, and can quickly and effectively adjust the unit joint direction to adapt to the requirements of different monitoring scenarios.

[0022] Optionally, a pressure-bearing cap is slidably arranged on the suction cup. The pressure-bearing cap slides in the direction of approaching or departing from the cylinder. A second spring is fixed between the pressure-bearing cap and the suction cup, and the piston end of the electric cylinder is fixedly connected to the pressure-bearing cap.

[0023] By adopting the above technical solution, during the process of the electric cylinder pushing the sucker adsorption unit section, the pressure-bearing cap can slide on the sucker. When the sucker contacts the outer wall of the unit section, if it encounters a certain resistance, the pressure-bearing cap will compress the second spring, playing a buffering role to prevent damage to the piston end of the electric cylinder due to rigid contact. At the same time, it can better ensure the adsorption effect between the sucker and the outer wall of the unit section, making the position-adjusting half-ring drive the unit section to rotate more smoothly and reliably, improving the safety and stability of the operation of adjusting the direction of the unit section.

[0024] Optionally, a pressure sensor and a third spring are arranged on the positioning block. The third spring is fixed between the pressure sensor and the positioning block, and both the third spring and the pressure sensor are located on the side wall of the positioning block facing the tail end of the inclinometer tube.

[0025] By adopting the above technical solution, during the process of the guiding half-ring sliding out of the inclined side tube, if the adjacent unit sections are in a misaligned state, that is, the adjacent identification grooves are not aligned, or the identification groove and the positioning groove are not aligned. As the guiding half-ring moves, the pressure sensor abuts against the end face of the unit section. The pressure sensor can detect the pressure change in real time and convert the pressure signal into an electrical signal for output. When the pressure sensor is under pressure, it is necessary to rotate and adjust the unit section until the pressure sensor is facing the identification groove. The third spring plays a buffering role to reduce the damage to the pressure sensor caused by the instantaneous impact force. The staff can adjust the position of the unit section according to the data fed back by the pressure sensor, judge whether the orientation of the identification groove is correct, which is convenient for subsequent data reading, and also convenient for the guiding half-ring to slide out of the inclined side tube.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated action of the guiding half-ring, the inclined strut, the traction wheel and the first motor, the inclinometer is driven to slide smoothly, effectively avoiding the extrusion of the cables between adjacent unit sections, ensuring the stretching of the cables, and improving the accuracy and stability of the monitoring data of the inclinometer; 2. Utilizing the coil spring, the connecting rod and the rolling ball of the centering component, according to the positional relationship between the connecting rod and the central axis of the inclinometer, the inclinometer is kept at a safe distance from the inner wall of the inclinometer tube or centered, reducing collisions and scratches, improving the accuracy of the monitoring data, and reducing equipment wear; 3. With the designs of the identification groove, the position-adjusting half-ring and the adsorption component, etc., it is convenient for the staff to directly read the displacement direction data, realize the precise adjustment of the direction of the unit section, meet different monitoring requirements, and facilitate the guiding half-ring to slide out of the inclinometer tube, improving the flexibility and convenience of the device in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a schematic structural diagram of the series-connected inclinometers; Figure 3 This is a schematic diagram of the use status of the adjustment half ring; Figure 4 It is a partial structural cross-sectional view when the guide half ring is located in the oblique side tube; Figure 5 It is a schematic diagram of the local structure at the traction wheel; Figure 6 It is a schematic diagram of the adsorption component of the second embodiment.

[0028] In the figure, 1. inclinometer tube; 2. inclinometer; 21. first section; 211. positioning groove; 22. unit section; 221. identification groove; 3. guide semi-ring; 31. diagonal support rod; 32. traction wheel; 33. first motor; 34. positioning block; 35. second motor; 36. gear; 37. slider; 38. notch; 4. centering component; 41. coil spring; 42. connecting rod; 43. ball; 5. long hole; 6. adjustment semi-ring; 61. arc-shaped rack; 7. adsorption component; 71. electromagnet; 72. limit cylinder; 73. first spring; 74. electric cylinder; 75. suction cup; 8. pressure cap; 81. second spring; 9. pressure sensor; 91. third spring. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a foundation pit support displacement and settlement auxiliary monitoring device.

[0031] Example 1: Reference Figure 1 and Figure 2 An auxiliary monitoring device for displacement and settlement of foundation pit support includes an inclinometer tube 1 and an inclinometer 2. The inclinometer 2 needs to be lowered into the inclinometer tube 1 when in use. The inclinometer 2 includes a first section 21 and a unit section 22. A plurality of unit sections 22 are provided. Cables are used to connect the first section 21 and the unit sections 22, and adjacent unit sections 22 in series.

[0032] refer to Figure 2 , Figure 3 and Figure 4 A guide half ring 3 is arranged between the inclinometer 2 and the inclinometer tube 1. The guide half ring 3 is slidably arranged in the inclinometer tube 1 and slides along the length direction of the inclinometer tube 1. A slide groove is opened in the inclinometer tube 1, and the slide groove is opened along the length direction of the inclinometer tube 1. A slider 37 is arranged on the guide half ring 3. One end of the slider 37 is fixedly connected to the circumferential outer wall of the guide half ring 3, and the other end is inserted into the slide groove and slides along the length direction of the slide groove. The slider 37 is T-shaped, that is, the guide half ring 3 cannot be separated from the slide groove in the direction perpendicular to the length of the inclinometer tube 1.

[0033] refer to Figure 3 and Figure 5, the guiding semi-ring 3 is provided with a diagonal brace 31, a traction wheel 32 and a first motor 33. One end of the diagonal brace 31 is fixedly connected to the guiding semi-ring 3, and the other end of the diagonal brace 31 is rotatably connected to the traction wheel 32. The traction wheel 32 is in rolling contact with the inner wall of the inclinometer tube 1. When the inclinometer tube 1 is in a vertical state, the diagonal brace 31 is in a diagonal bracing state below the slider 37. The first motor 33 is fixed on the guiding semi-ring 3, and the first motor 33 drives the traction wheel 32 to rotate. The implementation method can be: a pulley is fixed on the output end of the first motor 33, and a belt is sleeved between the rotating shaft between the traction wheel 32 and the diagonal brace 31 and the pulley. At this time, when the first motor 33 is started, the rotation of the traction wheel 32 is realized through the traction of the pulley and the belt.

[0034] Reference Figure 2 and Figure 3 , the guiding semi-ring 3 is arc-shaped and its radian conforms to the inner wall radian of the inclinometer 2. A positioning block 34 is fixed on the guiding semi-ring 3, and the positioning block 34 is located on the side wall of the guiding semi-ring 3 facing the inclinometer 2. A positioning groove 211 is formed on the first section 21, and the positioning groove 211 is formed along the length direction of the first section 21 and penetrates through the end face of the first section 21 close to the unit section 22. An identification groove 221 is formed on the unit section 22, and the identification groove 221 is formed along the length direction of the unit section 22 and penetrates through the end faces at both ends of the unit section 22. The width of the positioning groove 211 is the same as the width of the identification groove 221. When the identification groove 221 faces the inside of the foundation pit, the positive displacement measured by the unit section 22 is the displacement moving towards the inside of the foundation pit. The end of the positioning block 34 away from the guiding semi-ring 3 is inserted into the positioning groove 211 and slides along the length direction of the positioning groove 211. The guiding semi-ring 3 drags the first section 21 to move deeper into the inclined side tube through the positioning block 34. When it is necessary to take out the guiding semi-ring 3, the positioning block 34 slides out along the positioning groove 211 and the identification groove 221.

[0035] Reference Figure 3 and Figure 4 , a positioning semi-ring 6 is slidably arranged on the guiding semi-ring 3, and the positioning semi-ring 6 slides along the circumferential direction of the inner wall of the inclinometer tube 1; the positioning semi-ring 6 is also arc-shaped in this embodiment, and its radian and shape conform to the guiding semi-ring 3. The inside of the guiding semi-ring 3 is hollow, and a second motor 35 is fixed on the inner wall of the guiding semi-ring 3, and a gear 36 is fixed on the output end of the second motor 35; an arc-shaped rack 61 is fixed on the positioning semi-ring 6, the arc-shaped rack 61 is arc-shaped and has the same radian as the guiding semi-ring 3, the teeth of the arc-shaped rack 61 penetrate into the inside of the guiding semi-ring 3 and are slidably arranged relative to the guiding semi-ring 3, that is, a notch 38 is formed on the guiding semi-ring 3 to facilitate the relative sliding of the arc-shaped rack 61 relative to the guiding semi-ring 3, and the gear 36 meshes with the arc-shaped rack 61, and the gear 36 can be a bevel gear 36.

[0036] Reference Figure 3, an adsorption component 7 is provided on the position-adjusting semi-ring 6, and the adsorption component 7 makes the position-adjusting semi-ring 6 form a temporary connection state with the outer wall of the unit section 22. The adsorption component 7 includes an electromagnet 71, a limiting cylinder 72 and a first spring 73. The limiting cylinder 72 is fixed on the position-adjusting semi-ring 6 and its open end faces the unit section 22. The first spring 73 is located inside the limiting cylinder 72. The electromagnet 71 is slidably arranged inside the limiting cylinder 72. One end of the first spring 73 is fixedly connected to the inner wall of the limiting cylinder 72, and the other end is fixedly connected to the electromagnet 71. When the electromagnet 71 is energized, it is magnetically adsorbed to the outer wall of the unit section 22, and the end of the electromagnet 71 away from the unit section 22 is located inside the limiting cylinder 72.

[0037] Reference Figure 1 and Figure 5 , a pressure sensor 9 and a third spring 91 are provided on the positioning block 34. The third spring 91 is fixed between the pressure sensor 9 and the positioning block 34. Both the third spring 91 and the pressure sensor 9 are located on the side wall of the positioning block 34 facing the tail end of the inclinometer tube 1.

[0038] Reference Figure 3 , a centering component 4 is provided on the inclinometer 2, that is, the centering component 4 can be provided on the first section 21 or on the unit section 22. The centering component 4 includes a torsion spring 41, a connecting rod 42 and a rolling ball 43. There are two rolling balls 43, which are distributed at both ends of the connecting rod 42 and correspond to the ends of the connecting rod 42 one by one. A long strip hole 5 for accommodating the connecting rod 42 is opened on the inclinometer 2. The long strip hole 5 is opened along the length direction of the inclinometer 2. The connecting rod 42 passes through the long strip hole 5. The connecting rod 42 is rotatably connected to the inclinometer 2 and the rotation axis is located inside the long strip hole 5. The torsion spring 41 is located inside the long strip hole 5. One end of the torsion spring 41 is fixedly connected to the inner wall of the long strip hole 5, and the other end is fixedly connected to the rotation axis of the connecting rod 42. The torsion spring 41 applies a rotational force to the rotation axis of the connecting rod 42 to make the end of the connecting rod 42 rotate out of the long strip hole 5. The ball is rotatably connected to the connecting rod 42, and the ball rotates 360 degrees relative to the connecting rod 42. The rolling ball 43 rolls against the inner wall of the inclinometer tube 1. The midpoint of the connecting rod 42 is penetrated by the central axis of the inclinometer 2.

[0039] Embodiment 2: The difference from Embodiment 1 is that: Reference Figure 6 , the adsorption component 7 includes an electric cylinder 74 and a suction cup 75. The electric cylinder 74 is fixed on the position-adjusting semi-ring 6. A pressure-bearing cap 8 is slidably arranged on the suction cup 75. The pressure-bearing cap 8 slides in the direction of approaching or departing from the cylinder. A second spring 81 is fixed between the pressure-bearing cap 8 and the suction cup 75. The piston end of the electric cylinder 74 is fixedly connected to the pressure-bearing cap 8, and the piston end of the electric cylinder 74 pushes the suction cup 75 to move in the direction of approaching or departing from the unit section 22.

[0040] The implementation principle of an auxiliary monitoring device for foundation pit support displacement and settlement in an embodiment of this application is as follows: When monitoring the displacement and settlement of foundation pit support, first install the inclinometer tube 1 in a drilled hole at a selected foundation measurement position. Connect the first section 21 and the unit section 22 in series through a cable. After the series connection is completed, prepare to lower the inclinometer 2. First, place the first section 21 and the guiding half-ring 3. Start the first motor 33, and the first motor 33 drives the traction wheel 32 to rotate, driving the guiding half-ring 3 to slide along the length direction of the inclinometer tube 1. The positioning block 34 on the guiding half-ring 3 is inserted into the positioning groove 211 of the first section 21. When the guiding half-ring 3 moves, it drives the first section 21 and the subsequent series-connected unit sections 22 to slide smoothly together through the positioning block 34. During the sliding process of the inclinometer 2, the centering component 4 plays a role. The coil spring 41 drives the end of the connecting rod 42 to rotate out of the long hole 5, so that the rolling balls 43 at both ends are in rolling contact with the inner wall of the inclinometer tube 1.

[0041] During the process of the guiding half-ring 3 sliding out of the inclinometer tube 1, adjust the orientation of the marking groove 221 on the unit section 22 by the way. If there is a misaligned state between adjacent unit sections 22, the pressure sensor 9 on the positioning block 34 abuts against the end face of the unit section 22. The pressure sensor 9 detects the pressure change in real time and outputs an electrical signal. The staff adjusts the rotation of the unit section 22 according to the signal until the pressure sensor 9 is directly facing the marking groove 221. During this process, the third spring 91 plays a buffering role to reduce the damage to the pressure sensor 9 caused by the impact force. After adjustment, the guiding half-ring 3 slides out of the inclinometer tube 1 along the positioning groove 211 and the marking groove 221. At this time, the inclinometer 2 is in the correct position in the inclinometer tube 1 and the states of all components are good, and the monitoring work of the foundation pit support displacement and settlement can be started. Since during the process of lowering the inclinometer 2, the guiding half-ring 3 effectively avoids the extrusion of the cable between adjacent unit sections 22, ensuring the stretching of the cable.

[0042] If the adsorption component 7 in Embodiment 1 is adopted, that is, the structure composed of the electromagnet 71, the limiting cylinder 72 and the first spring 73, energize the electromagnet 71, and the electromagnet 71 generates magnetism and magnetically adsorbs to the outer wall of the unit section 22. Start the second motor 35, and the gear 36 at the output end of the second motor 35 rotates, driving the arc-shaped rack 61 meshing with it to slide, and then making the positioning half-ring 6 rotate along the circumferential direction of the inner wall of the inclinometer tube 1 to realize the direction adjustment of the unit section 22. After the adjustment is completed, the electromagnet 71 is powered off and reset under the action of the first spring 73, separating from the unit section 22.

[0043] If the adsorption component 7 of the second embodiment is adopted, that is, the structure composed of the electric cylinder 74 and the suction cup 75, when the electric cylinder 74 is started, its piston end pushes the pressure-bearing cap 8 and the suction cup 75 close to the outer wall of the unit section 22, and the suction cup 75 adsorbs on the outer wall of the unit section 22. Then, the second motor 35 is started, and the gear 36 at the output end of the second motor 35 rotates, driving the arc-shaped rack 61 meshing with it to slide, and further enabling the positioning semi-ring 6 to rotate along the circumferential direction of the inner wall of the inclinometer tube 1, so as to realize the direction adjustment of the unit section 22. After the adjustment is completed, the piston end of the electric cylinder 74 retracts, and the suction cup 75 is separated from the unit section 22.

[0044] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A foundation pit support displacement settlement auxiliary monitoring device, comprising an inclinometer tube (1) and an inclinometer (2) located in the inclinometer tube (1), the inclinometer (2) comprising a first section (21) and a plurality of unit sections (22) arranged in series, characterized in that: A guide half ring (3) is slidably arranged in the inclinometer tube (1). The guide half ring (3) slides along the length direction of the inclinometer tube (1). The guide half ring (3) is located between the inclinometer tube (1) and the outer wall of the inclinometer (2). An oblique support rod (31), a traction wheel (32) and a first motor (33) are arranged on the guide half ring (3). One end of the oblique support rod (31) is fixedly connected to the guide half ring (3), and the other end is rotatably connected to the traction wheel (32). The traction wheel (32) rolls against the inner wall of the oblique side tube. A motor (33) is fixed on the guide half ring (3) for driving the traction wheel (32) to rotate; a positioning groove (211) is provided on the first section (21), the positioning groove (211) is provided along the length direction of the first section (21) and penetrates the end surface of the first section (21) close to one end of the unit section (22); a positioning block (34) is fixed on the side wall of the guide half ring (3) facing the inclinometer (2), the end of the positioning block (34) is inserted into the positioning groove (211) and slides along the length direction of the positioning groove (211).

2. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 1 is characterized by: The inclinometer (2) is provided with a centering component (4), the centering component (4) comprising a coil spring (41), a connecting rod (42) and a rolling ball (43), two rolling balls (43) are provided and are distributed at both ends of the connecting rod (42) and correspond to the ends of the connecting rod (42) one by one, the inclinometer (2) is provided with a long hole (5) for receiving the connecting rod (42), the connecting rod (42) passes through the long hole (5), the connecting rod (42) is rotatably connected to the inclinometer (2) and the rotation axis is located in the long hole (5), the coil spring (41) is used for the end of the connecting rod (42) to rotate out of the long hole (5); the rolling ball (43) rolls against the inner wall of the inclinometer tube (1).

3. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 2 is characterized by: The ball is rotatably connected to the connecting rod (42), and the ball rotates 360 degrees relative to the connecting rod (42).

4. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 1 is characterized in that: An identification groove (221) is provided on the outer wall of the unit section (22); when the identification groove (221) faces into the foundation pit, the positive displacement measured by the unit section (22) is the displacement moving toward the foundation pit.

5. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 4 is characterized in that: The identification groove (221) is opened along the length direction of the unit section (22) and penetrates the end surfaces of both ends of the unit section (22), and the width of the identification groove (221) is the same as the width of the positioning groove (211); a positioning semi-ring (6) is slidably arranged on the guide semi-ring (3), and the positioning semi-ring (6) slides along the circumferential direction of the inner wall of the inclinometer tube (1); and an adsorption component (7) is arranged on the positioning semi-ring (6) for forming a temporary connection state with the outer wall of the unit section (22).

6. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 5 is characterized by: The interior of the guide semi-ring (3) is hollow, a second motor (35) is fixed to the inner wall of the guide semi-ring (3), and a gear (36) is fixed to the output end of the second motor (35); an arc-shaped rack (61) is fixed to the positioning semi-ring (6), the arc-shaped rack (61) and the guide semi-ring (3) are both arc-shaped and have the same arc, the teeth of the arc-shaped rack (61) penetrate into the interior of the guide semi-ring (3) and are slidably arranged relative to the guide semi-ring (3), and the gear (36) is meshed with the arc-shaped rack (61).

7. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 5, characterized in that: The adsorption assembly (7) comprises an electromagnet (71), a limiting cylinder (72) and a first spring (73); the limiting cylinder (72) is fixed on the positioning half ring (6) and its open end is arranged toward the unit section (22); the first spring (73) is located in the limiting cylinder (72); the electromagnet (71) is slidably arranged in the limiting cylinder (72); one end of the first spring (73) is fixedly connected to the inner wall of the limiting cylinder (72), and the other end is fixedly connected to the electromagnet (71); when the electromagnet (71) is energized, it is magnetically adsorbed to the outer wall of the unit section (22); and the end of the electromagnet (71) away from the unit section (22) is located in the limiting cylinder (72).

8. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 5, characterized in that: The adsorption assembly (7) comprises an electric cylinder (74) and a suction cup (75); the electric cylinder (74) is fixed on the positioning half ring (6); the piston end of the electric cylinder (74) pushes the suction cup (75) to move in a direction approaching or moving away from the unit segment (22).

9. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 8, characterized in that: A pressure-bearing cap (8) is slidably disposed on the suction cup (75), and the pressure-bearing cap (8) slides in a direction approaching or moving away from the cylinder. A second spring (81) is fixed between the pressure-bearing cap (8) and the suction cup (75), and the piston end of the electric cylinder (74) is fixedly connected to the pressure-bearing cap (8).

10. The foundation pit support displacement and settlement auxiliary monitoring device according to claim 5, characterized in that: The positioning block (34) is provided with a pressure sensor (9) and a third spring (91); the third spring (91) is fixed between the pressure sensor (9) and the positioning block (34); the third spring (91) and the pressure sensor (9) are both located on a side wall of the positioning block (34) facing the rear end of the inclinometer tube (1).

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