Automatic early warning device of pile body perpendicularity laser deviation rectifying instrument

By using the automatic early warning device of the pile verticality laser correction instrument, the pile foundation deviation is monitored and alarmed in real time, which solves the problem of verticality control in the construction of static pressure prestressed thick-walled reinforced concrete hollow square piles, improves construction efficiency and accuracy, and reduces correction costs.

CN224285925UActive Publication Date: 2026-05-26CHINA THIRD METALLURGICAL GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA THIRD METALLURGICAL GRP
Filing Date
2025-08-12
Publication Date
2026-05-26

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Abstract

The utility model relates to the technical field of constructional engineering pile foundation construction, in particular to an automatic early warning device of a pile body perpendicularity laser deviation rectifying instrument, which comprises an upper mounting ring and a lower mounting ring, a plurality of mounting plates are annularly mounted at the bottom of the upper mounting ring, and mounting blocks are rotatably mounted at the bottoms of the mounting plates. Laser emitters are mounted at the bottom of the mounting block, a plurality of mounting grooves are annularly formed in the top of the lower mounting ring, high-sensitivity light spot sensors are mounted in the mounting grooves, and the positions of the high-sensitivity light spot sensors are in one-to-one correspondence with the positions of the laser emitters. The device can monitor whether the pile foundation is skewed or not in real time in the pile foundation installation process, the situation that pile pulling and re-pressing are needed and cost is increased due to skew installation of the pile foundation is avoided, skew installation of the pile foundation can be avoided, and then the problems that pile pulling and re-pressing are needed and cost is increased due to skew installation of the pile foundation are solved.
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Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology in building engineering, and in particular to an automatic early warning device for a laser correction instrument for pile verticality. Background Technology

[0002] Static pressure prestressed thick-walled reinforced concrete hollow square piles are a type of pile foundation construction method. However, due to the variable actual geological conditions, uneven settlement, difficulty in controlling verticality, and difficulty in improving construction efficiency, the construction of pile foundations is challenging.

[0003] The following are common problems:

[0004] 1. Traditional manual monitoring is inefficient: It relies on intermittent measurements with total station / level instrument, and the pile driving is paused for testing every 3 meters, which reduces efficiency;

[0005] 2. Delay in correction: When deviation is detected, the pile has already penetrated deep into the soil, and correction requires pulling out the pile and re-pressuring, which increases costs;

[0006] 3. Alternating soft and hard strata cause deviation: The existing hydraulic system of the pile driver cannot dynamically respond to changes in soil resistance, resulting in a high rate of deviation in verticality.

[0007] Therefore, in order to solve such problems, an automatic early warning device for pile verticality laser correction instrument is proposed. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic early warning device for a laser correction instrument for pile verticality.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An automatic early warning device for a laser correction instrument for pile verticality includes an upper mounting ring and a lower mounting ring. The bottom of the upper mounting ring is ring-shaped with several mounting plates. The bottom of the mounting plates is rotatably mounted with mounting blocks. The bottom of the mounting blocks is mounted with laser emitters. The top of the lower mounting ring is ring-shaped with several mounting grooves. High-sensitivity light spot sensors are installed in the mounting grooves. The positions of the several high-sensitivity light spot sensors correspond one-to-one with the positions of the several laser emitters.

[0011] The bottom of the upper mounting ring is ring-shaped with several transparent waterproof protective shells, and several laser emitters are respectively located inside several transparent waterproof protective shells;

[0012] The bottom of the upper mounting ring is equipped with a cleaning mechanism for cleaning the transparent waterproof protective shell.

[0013] Preferably, a PLC controller and a central processing unit are installed at the top of the lower mounting ring, and several buzzer alarms are installed at the bottom of the upper mounting ring. Several high-sensitivity light spot sensors are electrically connected to the PLC controller, and the PLC controller is electrically connected to the central processing unit and the several buzzer alarms respectively.

[0014] Preferably, a plurality of rubber posts are installed on the top of the lower mounting ring, and a bending sensor is installed on the outer wall of the rubber posts. A plurality of mounting posts are installed on the outer wall of the upper mounting ring. A sliding sleeve is installed on the end of the mounting post away from the upper mounting ring. The inner diameter of the sliding sleeve is equal to the outer diameter of the rubber post. The rubber post is slidably fitted inside the sliding sleeve. The bending sensor is electrically connected to the PLC controller.

[0015] Preferably, a limiting groove is formed on the outer wall of the rubber column, and the bending sensor is installed in the limiting groove.

[0016] Preferably, the cleaning mechanism includes several annular rings mounted in a ring shape at the bottom of the upper mounting ring, several transparent waterproof protective shells located inside the several annular rings, a cavity opened inside the annular rings, several nozzles connected to the cavity installed on the inner wall of the annular rings, a water tank installed on the outer wall of the annular rings, a water pipe connected to the water tank, the end of the water pipe connected to the cavity, and a water pump installed inside the water pipe.

[0017] Preferably, the water tank contains cleaning fluid, and the water pump is electrically connected to the PLC controller.

[0018] Preferably, a fixing plate is installed at the bottom of the mounting plate, and a servo motor is installed on the side of the fixing plate. The output shaft of the servo motor passes through the fixing plate and is connected to the mounting block.

[0019] Preferably, the output shaft of the servo motor passes through the fixed plate and is connected to a rotating shaft, and the mounting block is fixedly sleeved on the outer wall of the rotating shaft.

[0020] Preferably, the servo motor is electrically connected to the PLC controller.

[0021] Preferably, the top of the upper mounting ring has an annular groove, and a magnetic ring is installed in the annular groove.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. In this invention, if the pile foundation is tilted during installation, the laser emitted by the laser emitter will deflect when it shines on the high-sensitivity spot sensor. When the deflection of the laser shining on the high-sensitivity spot sensor exceeds a preset value, the high-sensitivity spot sensor will transmit a signal to the PLC controller. The PLC controller will then control the buzzer alarm to sound an alarm, thus immediately alerting the staff to the tilting of the pile foundation during installation. This allows for real-time monitoring of whether tilting occurs during pile foundation installation, avoiding the need for later correction and re-pressuring of the pile, which increases costs.

[0024] 2. This utility model utilizes the combined use of rubber columns, bending sensors, and sliding sleeves. When the pile foundation installation becomes skewed, the sliding sleeve also skews simultaneously. The skewed sliding sleeve causes the rubber column, which is slidably fitted inside the sliding sleeve, to also skew. The skewed rubber column can be detected by the bending sensor, which transmits the signal to the PLC controller. The PLC controller can then control the buzzer alarm to trigger an alarm. This dual monitoring of whether skewness occurs during pile foundation installation, with the two monitoring methods working together, improves the accuracy of verticality monitoring during pile foundation installation and reduces the risk of misjudgment.

[0025] 3. In this utility model, a bending sensor is used to detect the angle of the rubber column's tilt, which is the tilt angle of the pile foundation. The tilt angle during the pile foundation installation process can be known in real time, and then transmitted to the PLC controller. The PLC controller can then transmit the signal to the central processing unit, which can calculate and correct the angle based on the tilt angle of the pile foundation. This facilitates the calculation and correction of the tilted pile foundation, improves the efficiency of pile foundation installation, and makes it easier to correct the tilted pile foundation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the layout structure of an automatic early warning device for a laser correction instrument for pile verticality proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the mechanism from the first perspective of an automatic early warning device for a laser correction instrument for pile verticality proposed in this utility model.

[0028] Figure 3 This is a second-view structural schematic diagram of an automatic early warning device for pile verticality laser correction instrument proposed in this utility model.

[0029] Figure 4 This is a schematic diagram showing the connection between the upper mounting ring and the mounting column of an automatic early warning device for a laser correction instrument for pile verticality proposed in this utility model.

[0030] Figure 5 This is a schematic diagram showing the connection between the mounting column and the sliding sleeve of the automatic early warning device for the laser correction instrument for pile verticality proposed in this utility model.

[0031] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0032] Figure 7 This is a schematic diagram showing the connection between the mounting plate and the fixing plate of the automatic early warning device for the laser correction instrument for pile verticality proposed in this utility model.

[0033] Figure 8 This is a schematic diagram showing the connection between the rubber column and the bending sensor of an automatic early warning device for a laser correction instrument for pile verticality proposed in this utility model.

[0034] Figure 9 This is a schematic diagram of the rubber column of an automatic early warning device for a laser correction instrument for pile verticality proposed in this utility model.

[0035] In the diagram: 1. Upper mounting ring; 2. Lower mounting ring; 3. Magnetic ring; 4. Rubber column; 5. Bending sensor; 6. PLC controller; 7. Central processing unit; 8. Mounting slot; 9. High-sensitivity light spot sensor; 10. Mounting column; 11. Sliding sleeve; 12. Buzzer alarm; 13. Ring; 14. Transparent waterproof protective shell; 15. Water tank; 16. Water pipe; 17. Water pump; 18. Nozzle; 19. Mounting plate; 20. Fixing plate; 21. Servo motor; 22. Mounting block; 23. Laser emitter; 24. Limiting slot. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] Reference Figure 1-9 An automatic early warning device for a laser correction instrument for pile verticality includes an upper mounting ring 1 and a lower mounting ring 2. The upper mounting ring 1 has several mounting plates 19 installed in a ring shape at its bottom. Mounting blocks 22 are rotatably installed at the bottom of the mounting plates 19. Laser emitters 23 are installed at the bottom of the mounting blocks 22. The lower mounting ring 2 has several mounting grooves 8 in a ring shape at its top. High-sensitivity light spot sensors 9 are installed in the mounting grooves 8. The positions of the several high-sensitivity light spot sensors 9 correspond one-to-one with the positions of the several laser emitters 23.

[0038] The bottom of the upper mounting ring 1 is ring-shaped with several transparent waterproof protective shells 14, and several laser emitters 23 are respectively located inside the several transparent waterproof protective shells 14. The use of the transparent waterproof protective shells 14 can facilitate the protection of the laser emitters 23, prevent the laser emitters 23 from being corroded by rainwater in rainy weather, and also prevent the laser emitters 23 from being wetted by rainwater, thereby improving the protection of the laser emitters 23.

[0039] The bottom of the upper mounting ring 1 is equipped with a cleaning mechanism for cleaning the transparent waterproof protective shell 14.

[0040] As a technical optimization of this utility model, a PLC controller 6 and a central processing unit 7 are installed on the top of the lower mounting ring 2, and several buzzer alarms 12 are installed on the bottom of the upper mounting ring 1. Several high-sensitivity light spot sensors 9 are electrically connected to the PLC controller 6, and the PLC controller 6 is electrically connected to the central processing unit 7 and several buzzer alarms 12 respectively. The PLC controller 6 and the central processing unit 7 work together to process the signals collected by the high-sensitivity light spot sensors 9 and the bending sensor 5 in real time. When the verticality of the pile foundation is detected to exceed the set range, the buzzer alarms 12 can be controlled to emit an alarm signal immediately, which facilitates more accurate monitoring of the pile foundation offset and provides a reliable basis for subsequent correction operations.

[0041] In one optimized technical solution of this utility model, a plurality of rubber pillars 4 are installed on the top of the mounting ring 2, and a bending sensor 5 is installed on the outer wall of the rubber pillars 4. A plurality of mounting pillars 10 are installed on the outer wall of the upper mounting ring 1. A sliding sleeve 11 is installed at the end of the mounting pillar 10 away from the upper mounting ring 1. The inner diameter of the sliding sleeve 11 is equal to the outer diameter of the rubber pillar 4. The rubber pillar 4 is slidably fitted into the sliding sleeve 11. The bending sensor 5 is electrically connected to the PLC controller 6. A limit groove 24 is formed on the outer wall of the rubber pillar 4, and the bending sensor 5 is installed in the limit groove 24. A bending sensor 5 is installed on the outer wall of the rubber pillar 4, and a plurality of mounting pillars 10 are installed on the outer wall of the upper mounting ring 1. A sliding sleeve 11 is installed at the end of the mounting pillar 10 away from the upper mounting ring 1. The diameter is equal to the outer diameter of the rubber column 4. The rubber column 4 is slidably fitted inside the sliding sleeve 11. With the cooperation of the rubber column 4, the bending sensor 5 and the sliding sleeve 11, when the pile foundation installation is skewed, the sliding sleeve 11 will also skew. After the sliding sleeve 11 skews, it will drive the rubber column 4 slidably fitted inside the sliding sleeve 11 to skew as well. When the rubber column 4 skews, it can be detected by the bending sensor 5, and the bending sensor 5 will transmit the signal to the PLC controller 6. The PLC controller 6 can then control the buzzer alarm 12 to perform alarm processing. In this way, the skewness of the pile foundation installation process is monitored in two ways. The two monitoring methods work together to improve the accuracy of verticality monitoring during the pile foundation installation process and reduce the risk of misjudgment.

[0042] As a technical optimization of this utility model, the cleaning mechanism includes several annular rings 13 mounted in a ring shape at the bottom of the upper mounting ring 1, several transparent waterproof protective shells 14 located inside the several annular rings 13, a cavity opened inside the annular rings 13, several nozzles 18 connected to the cavity installed on the inner wall of the annular rings 13, a water tank 15 installed on the outer wall of the annular rings 13, the water tank 15 being connected to a water pipe 16, the end of the water pipe 16 being connected to the cavity, and a water pump 17 installed inside the water pipe 16; the water tank 15 is filled with cleaning fluid, and the water pump 17 is electrically connected to a PLC controller 6; several transparent waterproof protective shells 14 are installed inside the annular rings 13. The protective shell 14 is located within several annular rings 13, which facilitates the cleaning fluid sprayed from the nozzles 19 to clean the dirt adhering to the surface of the transparent waterproof protective shell 14. The water pump 17 can easily draw the cleaning fluid from the water tank 15 into the water pipe 16, so that the cleaning fluid enters the cavity and is sprayed out through the nozzles 19 to clean the transparent waterproof protective shell 14. The cleaning fluid in the water tank 15 enters the annular cavity through the water pipe 16 and is then sprayed onto the surface of the transparent waterproof protective shell 14 through the nozzles 19, effectively removing stains, ensuring the stability of laser emission and reception, reducing the number of manual maintenance times, and lowering construction costs.

[0043] As a technical optimization of this utility model, a fixing plate 20 is installed at the bottom of the mounting plate 19, and a servo motor 21 is installed on the side of the fixing plate 20. The output shaft of the servo motor 21 passes through the fixing plate 20 and is connected to the mounting block 22. The output shaft of the servo motor 21 passes through the fixing plate 20 and is connected to a rotating shaft. The mounting block 22 is fixedly sleeved on the outer wall of the rotating shaft. The servo motor 21 is electrically connected to the PLC controller 6. An annular groove is opened at the top of the upper mounting ring 1, and a magnetic ring 3 is installed in the annular groove. The mounting block 22 can be driven to rotate by the servo motor 21, thereby adjusting the angle of the laser emitter 23.

[0044] In use, the present invention firstly uses the magnetic ring 3 at the top of the upper mounting ring 1 to magnetically attract the bottom of the pile driver clamp, and then the lower mounting ring 2 is fitted onto the outer wall of the pile foundation, so that the lower mounting ring 2 is concentric with the pile foundation; the upper mounting ring 1 can be quickly attracted and fixed to the bottom of the pile driver clamp by the magnetic ring 3 at the top, without the need for complicated mechanical connections, making installation and disassembly convenient, adaptable to pile drivers of different specifications, and with high overall installation efficiency.

[0045] At this time, the rubber column 10 is slidably sleeved in the sliding sleeve 11, and several rubber columns 10 are kept in a vertical state. The laser emitted by the laser emitter 23 can irradiate the high-sensitivity light spot sensor 9. At this time, the pile foundation is in a vertical state.

[0046] At this time, the pile foundation is installed using a pile driver. If the pile foundation tilts during installation, the laser emitted by the laser emitter 23 will deflect when it hits the high-sensitivity spot sensor 9. When the deflection of the laser hitting the high-sensitivity spot sensor 9 exceeds a preset value, the high-sensitivity spot sensor 9 will transmit a signal to the PLC controller 6. The PLC controller 6 will then control the buzzer alarm 12 to sound an alarm, which will immediately alert the staff to the tilting of the pile foundation during installation. This allows for real-time monitoring of whether tilting occurs during pile foundation installation, avoiding the need for pile removal and re-pressing for correction later, which increases costs.

[0047] Furthermore, by utilizing the combined use of the rubber column 4, bending sensor 5, and sliding sleeve 11, when the pile foundation installation becomes skewed, the sliding sleeve 11 also skews simultaneously. This skewness causes the rubber column 4, which is slidably fitted inside the sliding sleeve 11, to also skew. The bending sensor 5 detects this skewness and transmits the signal to the PLC controller 6. The PLC controller 6 then controls the buzzer alarm 12 to trigger an alarm. This dual monitoring of whether skewness occurs during pile foundation installation, combined with the bending sensor 5, improves the efficiency of the pile foundation installation process. The accuracy of verticality monitoring reduces the risk of misjudgment; and the bending sensor 5 can detect the angle of the rubber column 4's tilt, which is the tilt angle of the pile foundation. The tilt angle during the pile foundation installation process can be known in real time, and then transmitted to the PLC controller 6. The PLC controller 6 can then transmit the signal to the central processing unit 7, which can calculate and correct the angle based on the tilt angle of the pile foundation. This facilitates the calculation and correction of tilted pile foundations, improves the efficiency of pile foundation installation.

[0048] Furthermore, when the surface of the transparent waterproof protective shell 14 is dirty, the dirt on the surface of the transparent waterproof protective shell 14 will affect the laser emission of the laser emitter 23. At this time, the water pump 17 can be started, and the water pump 17 can draw the cleaning fluid in the water tank 15 into the water pipe 16. The cleaning fluid entering the water pipe 16 can enter the cavity opened inside the annular ring 13. The cleaning fluid entering the cavity can be sprayed out through the nozzle 18 to spray and wash the surface of the transparent waterproof protective shell 14, thereby cleaning the dirt on the surface of the transparent waterproof protective shell 14, removing the dirt attached to the surface of the transparent waterproof protective shell 14, and ensuring the cleanliness of the transparent waterproof protective shell 14.

[0049] When it is necessary to adjust the emission angle of the laser emitter 23, the servo motor 21 is started. The output shaft of the servo motor 21 drives the rotating shaft to rotate, which in turn drives the mounting block 22 to rotate. The rotation of the mounting block 22 drives the laser emitter 23 to rotate, thereby adjusting the angle of the laser emitter 23. This makes it convenient to adjust the laser emission angle of the laser emitter 23.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pile body verticality laser deviation correction instrument automatic early warning device, comprising an upper mounting ring (1) and a lower mounting ring (2), characterized in that, The upper mounting ring (1) has several mounting plates (19) installed in a ring shape at the bottom. The mounting plates (19) have mounting blocks (22) installed at the bottom of the mounting blocks (22). The mounting blocks (22) have laser emitters (23) installed at the bottom. The lower mounting ring (2) has several mounting slots (8) opened in a ring shape at the top. High-sensitivity light spot sensors (9) are installed in the mounting slots (8). The positions of the high-sensitivity light spot sensors (9) correspond one-to-one with the positions of the laser emitters (23). The bottom of the upper mounting ring (1) is ring-shaped with several transparent waterproof protective shells (14), and several laser emitters (23) are located inside the several transparent waterproof protective shells (14); The bottom of the upper mounting ring (1) is provided with a cleaning mechanism for cleaning the transparent waterproof protective shell (14).

2. The automatic early warning device for pile verticality laser deviation correction instrument according to claim 1, characterized in that, The lower mounting ring (2) is equipped with a PLC controller (6) and a central processing unit (7) at the top, and a number of buzzer alarms (12) are installed at the bottom of the upper mounting ring (1). A number of high-sensitivity light spot sensors (9) are electrically connected to the PLC controller (6). The PLC controller (6) is electrically connected to the central processing unit (7) and the number of buzzer alarms (12) respectively.

3. The automatic early warning device for pile verticality laser deviation correction instrument according to claim 2, characterized in that, The lower mounting ring (2) has several rubber pillars (4) installed on its top. A bending sensor (5) is installed on the outer wall of the rubber pillar (4). The upper mounting ring (1) has several mounting pillars (10) installed on its outer wall. A sliding sleeve (11) is installed on the end of the mounting pillar (10) away from the upper mounting ring (1). The inner diameter of the sliding sleeve (11) is equal to the outer diameter of the rubber pillar (4). The rubber pillar (4) is slidably fitted inside the sliding sleeve (11). The bending sensor (5) is electrically connected to the PLC controller (6).

4. The automatic early warning device of the pile verticality laser deviation correction instrument according to claim 3, characterized in that, The rubber column (4) has a limiting groove (24) on its outer wall, and the bending sensor (5) is installed in the limiting groove (24).

5. The automatic early warning device for pile verticality laser deviation correction instrument according to claim 1, characterized in that, The cleaning mechanism includes several annular rings (13) mounted in a ring shape at the bottom of the upper mounting ring (1), several transparent waterproof protective shells (14) located in the several annular rings (13), a cavity is opened inside the annular rings (13), several nozzles (18) connected to the cavity are installed on the inner wall of the annular rings (13), a water tank (15) is installed on the outer wall of the annular rings (13), a water pipe (16) is connected to the water tank (15), the end of the water pipe (16) is connected to the cavity, and a water pump (17) is installed in the water pipe (16).

6. The automatic early warning device for pile verticality laser deviation correction instrument according to claim 5, characterized in that, The water tank (15) is filled with cleaning fluid, and the water pump (17) is electrically connected to the PLC controller (6).

7. The automatic early warning device for pile verticality laser deviation correction instrument according to claim 1, characterized in that, The mounting plate (19) has a fixing plate (20) installed at the bottom. A servo motor (21) is installed on the side of the fixing plate (20). The output shaft of the servo motor (21) passes through the fixing plate (20) and is connected to the mounting block (22).

8. The automatic warning device of the pile verticality laser deviation correction instrument according to claim 7, characterized in that, The output shaft of the servo motor (21) passes through the fixed plate (20) and is connected to a rotating shaft. The mounting block (22) is fixedly sleeved on the outer wall of the rotating shaft.

9. The automatic warning device of the pile verticality laser deviation correction instrument according to claim 8, characterized in that, The servo motor (21) is electrically connected to the PLC controller (6).

10. The automatic warning device of the pile verticality laser deviation correction instrument according to claim 1, characterized in that, The top of the upper mounting ring (1) has an annular groove, and a magnetic ring (3) is installed in the annular groove.