A laser measuring device for measuring the perpendicularity of a steel casing in a deep water area

Abstract

The application discloses a kind of deep water area steel casing perpendicularity laser measuring equipment, it is related to laser measuring technical field, including lower pipe and upper pipe, the lower pipe, upper pipe one end is movably connected, the lower pipe, upper pipe movably connected one end is respectively provided with lower mounting hole and upper mounting hole, further including operation platform.The perpendicularity of the lower pipe is monitored in real time by laser monitoring mechanism, if the position of the lower pipe deviates, it is corrected, if the position of the lower pipe does not deviate, the lower pipe can be driven into position, in this process, without on-site commander real-time verticality real-time monitoring by level, manpower is saved, monitoring efficiency is also improved, while vibration hammer operator can monitor the perpendicularity of lower pipe or upper pipe by the monitoring data of laser monitoring mechanism, if deviation occurs, it can be timely corrected, both ensure monitoring accuracy, and subsequent correction difficulty can be reduced.

Description

Technical Field

[0001] This invention relates to the field of laser measurement technology, specifically to a laser measurement device for the verticality of steel casings in deep water. Background Technology

[0002] In deep-water construction, due to factors such as high water pressure, complex water flow, and unstable geological conditions, steel casing is a key component in bored pile construction. Its main functions are to protect the borehole wall from collapse, isolate external water flow interference, and provide precise guidance for the lowering of the drill bit and reinforcing cage.

[0003] Currently, steel casings in deep water areas are mainly installed using vibratory hammer piling. First, the center of the pile location is determined through measurement and positioning. Then, a piling vessel or crane is used to hoist the steel casing into place. Finally, the high-frequency vibration generated by the vibratory hammer drives the steel casing into the underwater riverbed to the designed depth. Throughout the piling process, the verticality of the steel casing needs to be monitored in real time. If any deviation exceeds the allowable range, the hammering direction and force are immediately adjusted to correct the deviation.

[0004] In current construction practice, the verticality of steel casings is mainly measured manually, with the most commonly used monitoring tool being a level. Currently, each vibratory hammer operation typically requires at least one on-site supervisor. During the casing's sinking process, the supervisor observes the level's bubble deviation in real time and uses a walkie-talkie to instruct the vibratory hammer operator to adjust the driving direction and force. This monitoring method is not only inefficient but also cannot achieve real-time monitoring. Therefore, by the time the supervisor detects a deviation in the casing's sinking using the level, the casing may have already sunk a considerable distance, significantly increasing the difficulty of correction. Therefore, this application proposes a laser measurement device for the verticality of steel casings in deep water areas to solve the aforementioned problems. Summary of the Invention

[0005] This invention provides a laser measurement device for the verticality of steel casings in deep water areas to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A laser measuring device for the verticality of steel casing in deep water includes a lower pipe and an upper pipe, one end of which is movably connected. The movably connected ends of the lower pipe and upper pipe are respectively provided with a lower mounting hole and an upper mounting hole. The device also includes an operating platform, which is installed in the construction water area. Piling holes are provided on the operating platform, and the lower pipe and upper pipe are driven into the bottom of the water area through the piling holes.

[0007] It also includes a ring-shaped base, on which multiple laser monitoring mechanisms are movably connected, with the multiple laser monitoring mechanisms evenly distributed in pairs on the ring-shaped base.

[0008] The monitoring points of the two laser monitoring mechanisms in pairs are symmetrical about the central axis of the lower tube.

[0009] A further improvement of the technical solution of the present invention is that each of the laser monitoring mechanisms includes a pressure roller, the pressure roller is connected to a telescopic rod, and the telescopic rod is movably connected to the annular base through a movable base.

[0010] Each of the pressure rollers is equipped with a laser detection device, which monitors the distance to the lower tube in real time. When the distances to the lower tube detected by the laser detection devices of multiple laser monitoring mechanisms are all the same, the lower tube is in a vertical state.

[0011] A further improvement of the technical solution of the present invention is that: the external part of the pressure roller is movably connected to a protective cover, and the protective cover is set to open on the side facing the central axis of the piling hole.

[0012] One side of the protective cover is fixedly connected to the output end of the telescopic rod.

[0013] A further improvement of the technical solution of the present invention is that: multiple monitoring holes are evenly opened on the pressure roller, and a laser detection device is installed inside each monitoring hole, with the monitoring end of the laser detection device facing the central axis of the pile hole.

[0014] A further improvement of the technical solution of the present invention is that: the pressure roller is provided with a plurality of triggering components, the triggering components include a plurality of buffer grooves opened on the pressure roller, an elastic block is fixedly connected to the inner wall of each buffer groove, and a trigger ball is movably connected between the inner wall of the buffer groove and the surface of the elastic block.

[0015] When the trigger ball is within the range of the protective cover, the elastic block is in a compressed state, and the trigger ball is movably connected to the inner wall of the protective cover.

[0016] A further improvement of the technical solution of the present invention is that a pressure sensor is fixedly connected to the inner wall of the protective cover.

[0017] The triggering components are configured in a one-to-one correspondence with the laser detection devices.

[0018] A further improvement of the technical solution of the present invention is that: ear plates are fixedly connected to both sides of the telescopic rod, and a sliding column is connected through the ear plates. Both ends of the sliding column are connected to the movable base through the mounting bracket, and a spring is sleeved on the outer surface of one section of the sliding column.

[0019] A further improvement of the technical solution of the present invention is that: a slot is provided on the movable base, and the slot is movably connected to the annular base.

[0020] An annular rack is fixedly connected to the upper surface of the annular base, and a drive gear is movably connected to the inner wall of the slot, the drive gear meshing with the annular rack.

[0021] A further improvement of the technical solution of the present invention is that: the bottom of the annular base is provided with multiple mounting grooves, and each mounting groove has a roller movably connected to its inner wall.

[0022] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: 1. This invention provides a laser measurement device for the verticality of steel casings in deep water. The laser monitoring mechanism monitors the verticality of the lower casing in real time. If the lower casing deviates from its position, it is corrected; if not, it can be driven into place. This process eliminates the need for on-site personnel to monitor verticality in real time using a level, saving manpower and improving monitoring efficiency. Simultaneously, the vibratory hammer operator can monitor the verticality of the lower or upper casing in real time using the data from the laser monitoring mechanism. If a deviation occurs, it can be corrected promptly, ensuring monitoring accuracy and reducing the difficulty of subsequent corrections.

[0023] 2. This invention provides a laser measurement device for the verticality of steel casings in deep water. During the driving of the lower or upper casing, the friction between the lower or upper casing and the pressure roller causes the pressure roller to rotate along the protective cover. When any monitoring hole rotates to the opening of the protective cover, the laser detection device installed in that monitoring hole monitors the distance of the lower or upper casing. As the pressure roller rotates, the laser detection devices in monitoring holes at different positions monitor the distance of the lower or upper casing in sequence. The more monitoring holes there are, the shorter the interval between adjacent monitoring, and the higher the corresponding monitoring accuracy. If the lower or upper casing deviates, it will be detected earlier and corrected as soon as possible. This not only ensures the driving accuracy of the lower and upper casings but also reduces the difficulty of correction.

[0024] 3. This invention provides a laser measurement device for the verticality of steel casings in deep water. When the lower and upper pipes are connected and the lower and upper mounting holes are aligned, the drive device drives the drive gear to rotate, causing the moving base, laser monitoring mechanism, and upper pipe to rotate together. When the upper pipe rotates until the lower and upper mounting holes are aligned, the monitoring data of the laser detection device increases significantly or disappears, indicating that the lower and upper pipes are accurately connected and the lower and upper mounting holes are aligned. They can be connected with bolts. This technical solution can achieve higher connection accuracy between the lower pipe and the lower mounting hole, and the operation is simpler. It eliminates the need for on-site operators to assist and repeatedly communicate with the vibratory hammer operator for adjustments, thus avoiding the problem of low connection efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the lower and upper tubes of the present invention; Figure 3 This is a schematic diagram of the structure of the lower pipe of the present invention installed at the piling hole; Figure 4 This is a schematic diagram of the structure when the lower and upper pipes of the present invention are connected; Figure 5 This is a cross-sectional structural diagram of the pressure roller and protective cover of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A; Figure 7 This is a schematic diagram of the laser monitoring mechanism of the present invention; Figure 8 This is a schematic diagram of the structure when the lower mounting hole and the upper mounting hole are not aligned during the connection of the lower and upper pipes of the present invention. Figure 9 This is a schematic diagram of the structure when the lower mounting hole and the upper mounting hole are aligned during the connection of the lower and upper pipes of the present invention; Figure 10 This is a schematic diagram of the bottom structure of the annular base of the present invention.

[0026] In the diagram: 1. Lower pipe; 2. Lower mounting hole; 3. Upper pipe; 4. Upper mounting hole; 5. Operating platform; 6. Annular base; 7. Mounting groove; 8. Roller; 9. Annular rack; 10. Movable base; 11. Telescopic rod; 12. Protective cover; 13. Pressure roller; 14. Monitoring hole; 15. Laser detection device; 16. Pressure sensor; 17. Buffer groove; 18. Trigger ball; 19. Elastic block; 20. Ear plate; 21. Sliding column; 22. Spring; 23. Mounting bracket; 24. Drive gear; 25. Drive device; 26. Piling hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments: Example

[0028] like Figure 1-10As shown, this invention provides a laser measurement device for the verticality of steel casings in deep water, including a lower tube 1 and an upper tube 3. One end of the lower tube 1 and the upper tube 3 are movably connected, and the movably connected end of the lower tube 1 and the upper tube 3 is respectively provided with a lower mounting hole 2 and an upper mounting hole 4. The steel casing is generally set in multiple sections. In the actual driving process of the steel casing, the lower tube 1 at the bottom is driven into a certain depth first, and then the bottom of the upper tube 3 is sleeved with the top of the lower tube 1, so that the lower mounting hole 2 and the upper mounting hole 4 are aligned. Then the lower tube 1 and the upper tube 3 are connected by bolts, and the driving operation can continue until the entire steel casing is completely driven in. It also includes an operating platform 5, which is the prior art. The operating platform 5 is pre-installed in the water area where the steel casing is to be constructed. The operating platform 5 is provided with a piling hole 26. The lower tube 1 and the upper tube 3 are driven into the bottom of the water area through the piling hole 26. The diameter of the piling hole 26 is relatively large, which facilitates the driving of lower tubes 1 and upper tubes 3 with different diameters.

[0029] It also includes an annular base 6, on which multiple laser monitoring mechanisms are movably connected. The multiple laser monitoring mechanisms are evenly distributed in pairs on the annular base 6, and the multiple laser monitoring mechanisms are evenly distributed along the circumference of the piling hole 26.

[0030] The monitoring points of the two paired laser monitoring mechanisms on the lower tube 1 are symmetrical about the central axis of the lower tube 1.

[0031] During the installation of the steel casing, the lower pipe 1 is first lifted using a lifting device, aligning its central axis with the central axis of the piling hole 26 on the operating platform 5. Then, the lower pipe 1 is gradually driven into the water using a vibratory hammer. During this process, the verticality of the lower pipe 1 is monitored in real time using a laser monitoring mechanism. If the position of the lower pipe 1 deviates, it is corrected; if the position is correct, the lower pipe 1 can be driven into place. This process eliminates the need for on-site personnel to monitor the verticality in real time using a level, saving manpower and improving monitoring efficiency. Simultaneously, the vibratory hammer operator can monitor the verticality of the lower pipe 1 or the upper pipe 3 in real time using the monitoring data from the laser monitoring mechanism. If a deviation occurs, it can be corrected promptly, ensuring monitoring accuracy and reducing the difficulty of subsequent corrections.

[0032] In one specific embodiment, each laser monitoring mechanism includes a pressure roller 13, which is connected to a telescopic rod 11. The telescopic rod 11 is existing technology and can be driven by pneumatic, electric or other methods. The telescopic rod 11 is movably connected to the annular base 6 through a movable base 10.

[0033] Each pressure roller 13 is equipped with a laser detection device 15, which monitors the distance to the lower tube 1 in real time. When the distances monitored by the laser detection devices 15 of multiple laser monitoring mechanisms to the lower tube 1 are all the same, the lower tube 1 is in a vertical state.

[0034] In the initial stage, the distance between the two pressure rollers 13 of the paired laser monitoring mechanisms is greater than the diameter of the piling hole 26. When the bottom of the lower pipe 1 is inserted through the piling hole 26 by the lifting device, multiple telescopic rods 11 extend synchronously and push the pressure rollers 13 towards the central axis of the piling hole 26. At this time, the laser detection device 15 monitors the distance between itself and the lower pipe 1 in real time. If the central axis of the lower pipe 1 does not coincide with the central axis of the piling hole 26, it indicates that the lower pipe 1 is tilted. At this time, the monitoring data of the multiple laser detection devices 15 are... There are differences between them. During the synchronous advancement of multiple pressure rollers 13, one pressure roller 13 will abut against the surface of the lower pipe 1 first. As advancement continues, until all multiple pressure rollers 13 abut against the surface of the lower pipe 1, the data monitored by the laser detection device 15 are all the same, and the multiple pressure rollers 13 do not produce a strong pressure effect on the lower pipe 1, so that the lower pipe 1 can continue to be driven into the water. This operation can save the positioning operation of the pile driving position of the lower pipe 1 in the initial stage, greatly simplify the operation process, and improve the driving efficiency of the lower pipe 1.

[0035] During the insertion of the lower tube 1 and the upper tube 3, multiple pressure rollers 13 will form a multi-directional limiting effect, which can effectively reduce the possibility of the lower tube 1 deviating.

[0036] When the diameters of the lower tube 1 and the upper tube 3 change, the extension length of the output end of the telescopic rod 11 varies, which can monitor the verticality of the lower tube 1 and the upper tube 3 with different diameters, thus improving the applicability of this device.

[0037] This application also includes a PLC control system and other related equipment, which are electrically connected to each of the electrical control devices in this application to ensure the real-time performance and accuracy of control commands and to adapt to the continuous operation requirements of each structure in this application.

[0038] In one specific embodiment, ear plates 20 are fixedly connected to both sides of the telescopic rod 11, and a sliding column 21 is connected through the ear plates 20. Both ends of the sliding column 21 are connected to the movable base 10 through the mounting bracket 23, and a spring 22 is sleeved on the outer surface of one section of the sliding column 21.

[0039] When the lower tube 1 or upper tube 3 deviates during the driving process, the telescopic rod 11 and ear plate 20 will slide along the sliding column 21 through the action of the pressure rollers 13 at different positions, and compress the spring 22, causing it to undergo a certain degree of elastic deformation. At this time, the verticality of the deviated lower tube 1 or upper tube 3 can be adjusted by the active driving action of the multi-directional telescopic rod 11, so that it returns to a vertical state. This ensures that the monitoring data of multiple laser detection devices 15 remain in the same state. This technical solution can achieve the following: based on the monitoring data of the laser detection device 15, the correction operation of the deviated lower tube 1 or upper tube 3 can be automatically completed, avoiding the problem of low on-site correction efficiency caused by the need for on-site operators to communicate and adjust the correction with the vibratory hammer operator.

[0040] In one specific embodiment, a plurality of monitoring holes 14 are evenly provided on the pressure roller 13. Each monitoring hole 14 is equipped with a laser detection device 15. The laser detection device 15 is existing technology and is used to monitor the distance between the lower pipe 1 or the upper pipe 3 in real time. The verticality of the lower pipe 1 or the upper pipe 3 is determined by the change of this distance. The monitoring end of the laser detection device 15 is oriented towards the central axis of the pile hole 26.

[0041] In one specific embodiment, a protective cover 12 is movably connected to the outside of the pressure roller 13, and the protective cover 12 is set with an opening facing the central axis of the piling hole 26.

[0042] A drive structure can be installed on the protective cover 12 so that when the device does not need to perform verticality monitoring, the drive structure drives the pressure roller 13 to rotate, so that the laser detection devices 15 installed in the multiple monitoring holes 14 are all inside the protective cover 12, thus forming a certain protection.

[0043] One side of the protective cover 12 is fixedly connected to the output end of the telescopic rod 11.

[0044] During the insertion of the lower tube 1 or the upper tube 3, the friction between the lower tube 1, the upper tube 3 and the pressure roller 13 causes the pressure roller 13 to rotate along the protective cover 12. When any monitoring hole 14 rotates to the opening of the protective cover 12, the laser detection device 15 installed in the monitoring hole 14 monitors the distance of the lower tube 1 or the upper tube 3. As the pressure roller 13 rotates, the laser detection devices 15 in the monitoring holes 14 at different positions monitor the distance of the lower tube 1 or the upper tube 3 in sequence. The more monitoring holes 14 there are, the shorter the interval between adjacent monitoring, and the higher the monitoring accuracy. If the lower tube 1 or the upper tube 3 deviates, it will be detected earlier and the correction will be carried out as soon as possible. This not only ensures the insertion accuracy of the lower tube 1 and the upper tube 3, but also reduces the difficulty of correction.

[0045] In one specific embodiment, the pressure roller 13 is provided with a plurality of triggering components. The triggering components include a plurality of buffer grooves 17 formed on the pressure roller 13. An elastic block 19 is fixedly connected to the inner wall of each buffer groove 17. A trigger ball 18 is movably connected between the inner wall of the buffer groove 17 and the surface of the elastic block 19.

[0046] When the trigger ball 18 is within the range of the protective cover 12, the elastic block 19 is in a compressed state, and the trigger ball 18 is movably connected to the inner wall of the protective cover 12.

[0047] The trigger ball 18 located in the buffer groove 17 inside the protective cover 12 is squeezed by the inner wall of the protective cover 12, causing the elastic block 19 to undergo elastic deformation. At this time, the trigger ball 18 is movably connected to the inner wall of the protective cover 12. When the pressure roller 13 rotates as the lower tube 1 or the upper tube 3 sinks, the trigger ball 18 at any position will be ejected by the compressed elastic block 19 when it rotates to the outside of the protective cover 12. At this time, the laser detection device 15 installed in the corresponding monitoring hole 14 can perform a distance monitoring of the lower tube 1 or the upper tube 3. After one monitoring, the laser detection device 15 stops working. When the trigger ball 18 does not rotate to the outside of the protective cover 12, the laser detection device 15 corresponding to the trigger ball 18 will not work, thus avoiding the generation of a large amount of useless data when the laser detection device 15 is working continuously, ensuring the accuracy of the monitoring process, and simplifying the data processing difficulty.

[0048] In one specific embodiment, a pressure sensor 16 is fixedly connected to the inner wall of the protective cover 12. The pressure sensor 16 is a prior art technology.

[0049] The triggering components are configured to correspond one-to-one with the laser detection device 15.

[0050] The trigger ball 18 on the trigger assembly is compressed by the elastic block 19 inside the protective cover 12. The trigger ball 18 exerts pressure on the inner wall of the protective cover 12. Therefore, when the trigger ball 18 corresponding to any laser detection device 15 moves to contact the pressure sensor 16, a pressure signal is generated. When the trigger ball 18 moves to the outside of the protective cover 12, the pressure signal on the pressure sensor 16 disappears. At this time, the laser detection device 15 corresponding to the trigger ball 18 can perform a distance monitoring, monitor the distance between multiple laser detection devices 15 and the lower tube 1 or the upper tube 3, and determine whether the lower tube 1 or the upper tube 3 is in a vertical state by the change of the distance.

[0051] In one specific embodiment, the movable base 10 has a slot, which is movably connected to the annular base 6.

[0052] A ring rack 9 is fixedly connected to the upper surface of the ring base 6, and a drive gear 24 is movably connected to the inner wall of the slot. The drive gear 24 meshes with the ring rack 9. A drive device 25 is fixedly connected to one side of the movable base 10. The drive device 25 is existing technology and includes equipment such as a motor and related accessories, used to drive the drive gear 24 to rotate.

[0053] As the lower tube 1 is gradually driven in while maintaining a vertical position, the monitoring data of multiple laser detection devices 15 will remain unchanged until the top of the lower tube 1 moves down to the position where it is connected to the upper tube 3 and reaches the laser detection device 15. At this point, the monitoring data of the laser detection device 15 will decrease slightly. If the laser detection device 15 is not aligned with the lower mounting hole 2 on the lower tube 1, the drive gear 24 can be driven to rotate by the drive device 25, causing the moving base 10 to rotate along the ring rack 9, adjusting the position of the pressure roller 13 so that one of the monitoring holes 14 is aligned with the lower mounting hole 2. Correspondingly, the monitoring data of the laser detection device 15 will increase significantly or disappear. If the laser detection device 15 is aligned with the lower mounting hole 2 on the lower tube 1, the monitoring data of the laser detection device 15 will directly increase significantly or disappear.

[0054] like Figure 8-9 As shown, the driving of the lower tube 1 can be stopped at this point. Then, the upper tube 3 is lifted to the lower tube 1 using a lifting device, so that the bottom of the upper tube 3 is fitted with the top of the lower tube 1. If the upper mounting hole 4 on the upper tube 3 is not aligned with the lower mounting hole 2 on the lower tube 1, the outer wall of the upper tube 3 will block the lower mounting hole 2 on the lower tube 1. That is, when the monitoring data of the laser detection device 15 is consistent with the initial stage after the lower tube 1 and the upper tube 3 are spliced, it indicates that the upper mounting hole 4 on the upper tube 3 is not aligned with the lower mounting hole 2 on the lower tube 1. At this time, the telescopic rod 11 actively pushes the pressure roller 13 closer to the surface of the upper tube 3, and by applying a lateral force, the upper tube 3 is subjected to multiple pressure rollers. With the clamping wheel 13 clamping tightly, the drive gear 24 is driven by the drive device 25 to rotate, causing the moving base 10, the laser monitoring mechanism, and the upper tube 3 to rotate together. When the upper tube 3 rotates until the lower mounting hole 2 and the upper mounting hole 4 are aligned, the monitoring data of the laser detection device 15 increases significantly or disappears, indicating that the lower tube 1 and the upper tube 3 are accurately connected and the lower mounting hole 2 and the upper mounting hole 4 are aligned. They can be connected by bolts. This technical solution can achieve higher connection accuracy between the lower tube 1 and the lower mounting hole 2, and make the operation simpler. It eliminates the need for on-site operators to assist and repeatedly communicate with the vibratory hammer operator to make adjustments, thus avoiding the problem of low connection efficiency.

[0055] In one specific embodiment, the bottom of the annular base 6 is provided with multiple mounting slots 7, and each mounting slot 7 is movably connected to a roller 8 on its inner wall, so as to facilitate moving the device to different positions for use.

Claims

1. A laser measuring device for the verticality of steel casing in deep water, comprising a lower tube (1) and an upper tube (3), wherein one end of the lower tube (1) and the upper tube (3) are movably connected, and the movably connected ends of the lower tube (1) and the upper tube (3) are respectively provided with a lower mounting hole (2) and an upper mounting hole (4), characterized in that: It also includes an operating platform (5), which is installed in the construction water area. The operating platform (5) has a pile hole (26) and the lower pipe (1) and upper pipe (3) are driven into the bottom of the water area through the pile hole (26). It also includes an annular base (6), on which multiple laser monitoring mechanisms are movably connected, and the multiple laser monitoring mechanisms are evenly distributed in pairs on the annular base (6); The monitoring points of the two laser monitoring mechanisms in pairs are symmetrical about the central axis of the lower tube (1).

2. The laser measurement device for the verticality of steel casing in deep water as described in claim 1, characterized in that: Each of the laser monitoring mechanisms includes a pressure roller (13), which is connected to a telescopic rod (11), which is movably connected to an annular base (6) via a movable base (10); Each of the pressure rollers (13) is equipped with a laser detection device (15). The laser detection device (15) monitors the distance to the lower tube (1) in real time. When the distances monitored by the laser detection devices (15) of multiple laser monitoring mechanisms to the lower tube (1) are all the same, the lower tube (1) is in a vertical state.

3. The laser measurement device for the verticality of steel casing in deep water as described in claim 2, characterized in that: The externally connected protective cover (12) of the pressure roller (13) is provided with an opening facing the central axis of the pile hole (26); One side of the protective cover (12) is fixedly connected to the output end of the telescopic rod (11).

4. The laser measurement device for the verticality of steel casing in deep water as described in claim 2, characterized in that: Multiple monitoring holes (14) are evenly provided on the pressure roller (13). Each monitoring hole (14) is equipped with a laser detection device (15). The monitoring end of the laser detection device (15) faces the central axis of the pile hole (26).

5. A laser measurement device for the verticality of steel casing in deep water as described in claim 2, characterized in that: The pressure roller (13) is provided with a plurality of trigger components, the trigger components including a plurality of buffer grooves (17) opened on the pressure roller (13), each buffer groove (17) is fixedly connected to an elastic block (19) on its inner wall, and a trigger ball (18) is movably connected between the inner wall of the buffer groove (17) and the surface of the elastic block (19). When the trigger ball (18) is within the range of the protective cover (12), the elastic block (19) is in a compressed state, and the trigger ball (18) is movably connected to the inner wall of the protective cover (12).

6. The laser measurement device for the verticality of steel casing in deep water as described in claim 5, characterized in that: A pressure sensor (16) is fixedly connected to the inner wall of the protective cover (12). The triggering components are set up one-to-one with the laser detection device (15).

7. The laser measurement device for the verticality of steel casing in deep water as described in claim 2, characterized in that: The telescopic rod (11) is fixedly connected to ear plates (20) on both sides. A sliding column (21) is connected through the ear plates (20). Both ends of the sliding column (21) are connected to the movable base (10) through the mounting bracket (23). A spring (22) is sleeved on the outer surface of one section of the sliding column (21).

8. The laser measurement device for the verticality of steel casing in deep water as described in claim 2, characterized in that: The movable base (10) is provided with a slot, which is movably connected to the annular base (6); An annular rack (9) is fixedly connected to the upper surface of the annular base (6), and a drive gear (24) is movably connected to the inner wall of the slot. The drive gear (24) meshes with the annular rack (9).

9. The laser measurement device for the verticality of steel casing in deep water as described in claim 1, characterized in that: The bottom of the annular base (6) is provided with multiple mounting slots (7), and each mounting slot (7) is movably connected to a roller (8) on its inner wall.

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