A sinking well sinking construction device and a construction method thereof

Abstract

This invention relates to the field of caisson construction technology, and discloses a caisson sinking construction device and its construction method. Addressing the problems of difficulty in adjusting the posture, easy deviation, and poor flexibility of large equipment in traditional caisson construction, a modular device that can be mounted on an excavator is designed, comprising three modules: height adjustment, posture adjustment, and fixing. The caisson is clamped by clamping blocks, and the posture is corrected in real time by rotating the caisson slightly with the help of rollers. Combined with the construction steps of segmented sinking and repositioning clamping, the caisson can sink while rotating, effectively avoiding deviation and improving construction accuracy and efficiency. This device eliminates the need for large fixing equipment, is adaptable to different sites, simplifies the equipment structure, and reduces construction costs.

Description

Technical Field

[0001] This invention relates to the field of caisson construction technology, specifically to a caisson sinking construction device and its construction method. Background Technology

[0002] Caisson construction is widely used in municipal engineering, bridge foundations, underground structures and other fields. Its construction quality and efficiency directly affect the overall project progress and stability.

[0003] Traditional caisson sinking construction often involves manual labor combined with mechanical excavation. During construction, adjusting the caisson's posture is difficult, easily leading to tilting and affecting construction accuracy. Furthermore, traditional caisson clamping and fixing devices are complex, unable to adjust the caisson's posture synchronously during sinking, and have low coordination between clamping and sinking actions, resulting in low construction efficiency. Additionally, existing caisson construction equipment is mostly large, fixed, and lacks flexibility, making it difficult to adapt to the needs of smaller construction sites and unable to cooperate with commonly used construction equipment such as excavators for flexible operation. Therefore, a device and method are needed that can flexibly adjust the caisson's posture and cooperate with excavators for efficient sinking construction to solve these problems. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a caisson sinking construction device and construction method thereof, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a caisson sinking construction device, characterized in that it includes a height adjustment module, the height adjustment module includes two identical working units, which are respectively arranged on the left and right sides of the device, and the height adjustment module includes a mounting frame, a height adjustment component, a sliding support frame and a guide component.

[0006] Furthermore, it also includes a fixing module, which is located in the middle of the device. The fixing module includes two opposing semi-circular clamping blocks, which surround each other to fix the main body of the caisson. T-shaped sliders are provided on the outer sides of both ends of the clamping blocks, and both ends of the clamping blocks are respectively connected to the height adjustment modules on the left and right sides.

[0007] Furthermore, it also includes an attitude adjustment module, which comprises two identical working units, respectively located at the front and rear ends of the device. The attitude adjustment module includes adjustment components and a fixed support frame. Each working unit is provided with two adjustment components. The adjustment components include a power element and a roller driven by the power element. The outer arc surface of the roller contacts the outer arc surface of the clamping block, and the clamping block and the caisson body are rotated by friction to make adjustment.

[0008] Furthermore: the height adjustment component is disposed between the mounting frame and the sliding support frame, the two ends of the sliding support frame are slidably engaged with the mounting frame through guide components, and the inner side of the sliding support frame is provided with a slot.

[0009] Furthermore: the height adjustment component is a hydraulic cylinder, the mounting bracket is an inverted U-shape, the guide component includes a guide rail, a linear slider and a connecting plate, the guide rail is fixedly installed on the inner side of the mounting bracket, the two ends of the sliding support bracket are equipped with linear sliders through the connecting plate, the linear sliders slide with the guide rail, and the sliding support bracket is slidably connected to the mounting bracket through the guide rail and the linear sliders.

[0010] Furthermore, the adjustment component is disposed on the inner side of the fixed support frame, and the adjustment component is slidably engaged with the fixed support frame, with both ends of the fixed support frame being fixedly connected to the mounting frame.

[0011] Furthermore, a strip groove is provided in the middle section of the slot one of the sliding support frame, and sliding arc grooves are provided on both side walls of the slot one, and the sliding arc grooves are connected to the strip grooves.

[0012] Furthermore, the clamping block slides in conjunction with the sliding support frame via a T-shaped slider, a sliding arc groove, and a strip groove.

[0013] Furthermore: the upper surface of the fixed support frame is provided with a sliding groove 1, the opening of the sliding groove 1 extends to the inner side, the inner side of the fixed support frame is provided with a slot 2, the sliding groove 1 extends downward to connect with the slot 2, and the bottom of the slot 2 is provided with a sliding groove 2.

[0014] Furthermore, the attitude adjustment module also includes a second hydraulic cylinder, which is located at the bottom of the second slide groove. The output end of the second hydraulic cylinder faces the outside of the second groove. A push plate is fixedly installed at the output end of the second hydraulic cylinder, and the push plate slides in cooperation with the fixed support frame through the second slide groove.

[0015] Furthermore: the adjustment component includes a rectangular shell, which is disposed at the bottom of the adjustment component. The adjustment component slides with the fixed support frame through the rectangular shell and the slide groove, and the side of the push plate contacts the side of the rectangular shell.

[0016] Furthermore, the adjustment assembly also includes a housing, on which a first rotating shaft and a second rotating shaft are rotatably mounted. The lower ends of the first rotating shaft and the second rotating shaft extend downward out of the housing. A roller is fixedly mounted on a section of the first rotating shaft and the second rotating shaft outside the housing. The outer arc surface of the roller extends out of the side of the housing and contacts the outer arc surface of the clamping block.

[0017] Furthermore: the power element is housed inside the housing, and pulleys are fixedly installed on a section of shaft one and shaft two inside the housing. A pulley is also fixedly installed at the output end of the power element, and power is transmitted between the power element and shaft one and shaft two via belt drive.

[0018] Furthermore: the two clamping blocks are in contact at both ends, and multiple mounting holes are provided on the opposite sides of the two T-shaped sliders. Each mounting hole is provided with a support rod, which slides into two corresponding mounting holes. The length of the support rod is less than twice the depth of the mounting hole.

[0019] Furthermore: the support rod is a cylindrical shape with one end open, and a spring is installed inside the support rod. The initial length of the spring is more than twice the depth of the mounting hole. One end of the spring abuts against the bottom of the cylindrical support rod, and the other end abuts against the bottom of the opposite mounting hole.

[0020] Furthermore, a connecting block is fixedly installed on the outer side of one of the fixed support frames, and the device is connected to the excavator through the connecting block.

[0021] A construction method for a caisson sinking construction device, characterized by comprising the following steps:

[0022] S1: Move the device to the designated location using an excavator, and then the excavator will carry out the excavation of the foundation pit within the suitable location;

[0023] S2: Place the main body of the caisson within the enclosed space of the two clamping blocks;

[0024] S3: Start hydraulic cylinder two, its output end pushes the push plate to slide in slide groove two, the push plate pushes the rectangular shell to slide in slide groove one, at this time the adjustment component moves laterally, the outer arc surface of the roller presses against the outer arc surface of the clamping block and pushes the two clamping blocks closer, the T-shaped slider moves from both sides of the strip groove to the middle position and connects with the sliding arc groove, the support rod is inserted into the mounting hole and squeezes the spring to achieve clamping of the caisson body;

[0025] S4: Start the power unit, drive the drum to rotate through the synchronous belt pulley, and the drum drives the clamping block and the caisson body to rotate slightly in both directions through friction, so as to adjust the posture of the caisson body;

[0026] S5: Start hydraulic cylinder one, its output end drives the sliding support frame to move down smoothly, driving the clamping block and the caisson body to move down synchronously. The adjustment component continues to operate, and the height adjustment module works with the adjustment component to make the caisson body rotate and sink at the same time.

[0027] S6: After the stage sinking is completed, the push plate is retracted by the second hydraulic cylinder, the clamping block is separated by the spring, the first hydraulic cylinder is retracted, the sliding support frame is moved up, and the second hydraulic cylinder is restarted to clamp the clamping block at the upper part of the caisson body.

[0028] S7: The excavator continues to dig downwards through the middle of the caisson body, repeating steps S4-S6 to achieve continuous sinking of the caisson body.

[0029] The present invention has the following beneficial effects:

[0030] 1. It can be mounted on an excavator, making it highly flexible and adaptable to the construction needs of different sites. It does not require large fixed equipment, thus reducing the investment cost of construction equipment.

[0031] 2. The adjustment components of the attitude adjustment module can drive the caisson to rotate slightly during the sinking process, adjust the attitude of the caisson in real time, effectively avoid the caisson from tilting during the sinking process, and improve the accuracy of construction.

[0032] 3. The height adjustment module, attitude adjustment module and fixing module work together to realize the simultaneous clamping, attitude adjustment and sinking operation of the caisson. It can also achieve continuous sinking by segmented sinking and resetting clamping, which greatly improves the efficiency of caisson construction.

[0033] 4. The fixing module adopts a spring-loaded support rod structure, which can automatically separate the clamping block after the clamping force is released. No additional separation drive structure is required, which simplifies the structure of the device and reduces the complexity and maintenance cost of the equipment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is an exploded view of part of the height adjustment module and the fixing module;

[0036] Figure 3 This is a structural cross-sectional view of the sliding support frame in the height adjustment module;

[0037] Figure 4 Exploded view of the attitude adjustment module after removing the top of the fixed support frame section;

[0038] Figure 5 A schematic diagram of the structure after removing part of the housing for adjusting the component;

[0039] Figure 6 This is an exploded view of the structure at the connection point of the two clamping rings of the fixed module;

[0040] Figure 7 A sectional view of the structure at the mounting holes for the fixed module;

[0041] Figure 8 This is a structural diagram illustrating the construction process of this invention.

[0042] Legend:

[0043] 1. Excavator; 2. Connecting block; 3. Height adjustment module; 31. Mounting frame; 32. Sliding support frame; 321. Groove one; 322. Strip groove; 323. Sliding arc groove; 33. Hydraulic cylinder one; 34. Guide assembly; 341. Guide rail; 342. Linear slider; 343. Connecting plate; 4. Attitude adjustment module; 41. Adjustment assembly; 411. Housing; 412. Roller; 413. Power element; 414. Shaft one; 415. Shaft two; 416. Rectangular shell; 42. Fixed support frame; 421. Slide groove one; 422. Groove two; 423. Slide groove two; 43. Hydraulic cylinder two; 44. Push plate; 5. Fixed module; 51. Clamping block; 52. T-shaped slider; 521. Mounting hole; 53. Support rod; 531. Spring; 6. Caisson body. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] Reference Figure 1-8 The present invention provides a caisson sinking construction device, which includes a height adjustment module 3, a posture adjustment module 4 and a fixing module 5, and is also provided with a connecting block 2 for connecting and installing the entire device on an excavator 1 to realize the flexible movement and operation of the device.

[0047] The height adjustment module 3 includes two identical working units, respectively located on the left and right sides of the device. Each working unit includes a mounting frame 31, a hydraulic cylinder 33, a sliding support frame 32, and a guide assembly 34. The mounting frame 31 has an inverted U-shaped structure. The hydraulic cylinder 33 is located between the mounting frame 31 and the sliding support frame 32, and is used to drive the sliding support frame 32 to move up and down. The two ends of the sliding support frame 32 are slidably engaged with the mounting frame 31 through the guide assembly 34. The guide assembly 34 includes a guide rail 341, a linear slider 342, and a connecting plate 343. The guide rail 341 is fixedly installed on the inner side of the mounting frame 31. The two ends of the sliding support frame 32 are equipped with linear sliders 342 through the connecting plate 343. The linear sliders 342 are slidably engaged with the guide rail 341, so that the sliding support frame 32 can slide smoothly up and down along the guide rail 341, ensuring the stability of the sinking process.

[0048] The sliding support frame 32 has a slot 321 on its inner side, a strip groove 322 in the middle section of the slot 321, and sliding arc grooves 323 on both sides of the slot 321. The sliding arc grooves 323 are connected to the strip grooves 322 and are used to cooperate with the T-shaped slider of the fixed module.

[0049] The attitude adjustment module 4 includes two identical working units, respectively located at the front and rear ends of the device. Each working unit includes an adjustment component 41 and a fixed support frame 42. The two ends of the fixed support frame 42 are fixedly connected to the mounting frame 31. Each working unit contains two adjustment components 41. The upper surface of the fixed support frame 42 has a first groove 421, the opening of which extends to the inner side of the fixed support frame 42. The inner side of the fixed support frame 42 has a second slot 422, which extends downward and connects to the second slot 422. The bottom of the second slot 422 has a second groove 423. The attitude adjustment module 4 also includes a second hydraulic cylinder 43, which is located at the bottom of the second groove 423. The output end of the second hydraulic cylinder 43 faces the outside of the second slot 422, and a push plate 44 is fixedly installed at the output end. The push plate 44 slides with the fixed support frame 42 through the second groove 423 and can slide laterally under the drive of the second hydraulic cylinder 43.

[0050] The adjustment component 41 is set on the inner side of the fixed support frame 42. The bottom of the adjustment component 41 is provided with a rectangular shell 416. Through the cooperation of the rectangular shell 416 and the slide groove 421, the adjustment component 41 can slide laterally on the fixed support frame 42. The side of the push plate 44 contacts the side of the rectangular shell 416. When the push plate 44 slides, it can push the adjustment component 41 to move laterally synchronously.

[0051] The adjustment assembly 41 also includes a housing 411, on which a first rotating shaft 414 and a second rotating shaft 415 are rotatably mounted. The tail sections of the two rotating shafts extend downward out of the housing 411, and rollers 412 are fixedly mounted on the tail sections outside the housing 411. The outer arc surface of the rollers 412 extends out of the side of the housing 411 and can contact the outer side of the clamping block. A power element 413 is provided inside the housing 411. The power element 413 is a servo motor. The section of the first rotating shaft 414 and the second rotating shaft 415 inside the housing 411, as well as the output end of the servo motor, are all fixedly mounted with pulleys. Power is transmitted between the three through belt drive. When the servo motor is running, it can synchronously drive the two rotating shafts to rotate through belt drive, thereby driving the two rollers 412 to rotate synchronously. The rollers 412 are made of rubber to obtain greater friction.

[0052] The fixing module 5 is located in the middle of the device and includes two opposing semi-circular clamping blocks 51. The two clamping blocks 51 can form a circular clamping space after being enclosed, which is used to clamp the main body 6 of the caisson. T-shaped sliders 52 are provided on the outer sides of both ends of the clamping blocks 51. The clamping blocks 51 cooperate with the sliding arc grooves 323 and strip grooves 322 of the sliding support frame 32 through the T-shaped sliders 52 to achieve sliding connection with the sliding support frame 32, so that the clamping blocks 51 can slide laterally on the sliding support frame 32 to achieve clamping and separation.

[0053] Two clamping blocks 51 are in contact at both ends. Multiple mounting holes 521 are provided on the sides of the opposing T-shaped sliders 52. Support rods 53 are installed inside the mounting holes 521, and each support rod 53 slides into one of the corresponding mounting holes 521. Each support rod 53 is a cylindrical tube open at one end, containing a spring 531. The initial length of the spring 531 is greater than twice the depth of the mounting hole 521. One end of the spring 531 presses against the bottom of the cylindrical tube, and the other end presses against the bottom of the opposing mounting hole 521. When the two clamping blocks 51 approach and clamp together, the support rod 53 gradually slides into the mounting hole 521, compressing the spring 531. When the pressure on the clamping blocks is released, the elastic force of the spring 531 pushes the support rod 53 out, thereby automatically separating the two clamping blocks 51 without the need for an additional drive structure.

[0054] Example 2

[0055] Based on Example 1, a caisson sinking construction device and its construction method are described below:

[0056] The first step is construction preparation: the device is moved to the designated construction location by excavator 1. Excavator 1 first carries out preliminary foundation pit excavation work at the construction location to prepare a flat construction foundation surface for the sinking of the caisson.

[0057] The second step is caisson positioning: the caisson body 6 is placed within the enclosed space of the two clamping blocks 51 to complete the initial positioning of the caisson, so that the caisson is in the middle position of the two clamping blocks 51.

[0058] The third step is to clamp the caisson: start the second hydraulic cylinder 43, the output end of the second hydraulic cylinder 43 pushes the push plate 44 to slide in the second slide groove 423, the push plate 44 pushes the rectangular shell 416 of the adjustment component 41, and drives the adjustment component 41 to move laterally in the first slide groove 421; the roller 412 of the adjustment component 41 presses against the outer side of the clamping block 51, pushing the two clamping blocks 51 closer to each other, the T-shaped slider 52 moves from both sides of the strip groove 322 to the middle, the support rod 53 is gradually inserted into the opposite mounting hole 521, and the internal spring 531 is squeezed, and finally the two clamping blocks 51 clamp the caisson body 6, completing the fixation of the caisson body 6.

[0059] The fourth step is attitude adjustment: the servo motor in the adjustment component 41 is started, and the first rotating shaft 414 and the second rotating shaft 415 are driven to rotate synchronously through belt drive, which in turn drives the roller 412 to rotate; the roller 412 drives the clamping block 51 and the caisson body 6 to rotate slightly in both directions through friction, thereby adjusting the attitude of the caisson body 6, detecting and correcting the verticality of the caisson body 6, and ensuring that the caisson is in a vertical state.

[0060] Step 5, sinking operation: Start hydraulic cylinder 33. The output end of hydraulic cylinder 33 drives the sliding support frame 32 to move smoothly down along the guide rail 341, driving the clamping block 51 and the caisson body 6 to move down synchronously. Continue to maintain the operation of the servo motor, so that the roller 412 drives the caisson body 6 to rotate continuously in small amplitude, so that the caisson body 6 can sink while rotating, avoiding deviation due to uneven soil resistance during the sinking process, and improving the sinking accuracy. During the sinking process, the roller 412 and the clamping block 51 maintain rolling contact. The roller 412 is passively followed by the servo motor at a low speed to ensure smooth sinking without interference.

[0061] Step 6, Device Reset: After completing a section of sinking operation, retract hydraulic cylinder 2 43, retract push plate 44, release the push on adjustment component 41, and the two clamping blocks 51 automatically separate under the elastic force of internal spring 531; then retract hydraulic cylinder 1 33, drive sliding support frame 32 to move upward, and adjust the height position of the device; then start hydraulic cylinder 2 43 again, drive clamping block 51 to clamp the upper part of caisson body 6, and complete the device reset and re-clamping.

[0062] Step 7, Continued Construction: Excavator 1 continues to excavate the soil downward through the space in the middle of the caisson body 6, repeating the above steps of posture adjustment, sinking, and resetting clamping, gradually realizing the continuous sinking construction of the caisson until the caisson sinks to the designed construction depth, and the sinking operation of the caisson is completed.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A caisson sinking construction device, characterized in that, include: The height adjustment module (3) includes two identical working units, which are respectively set on the left and right sides of the device. The height adjustment module (3) includes a mounting frame (31), a height adjustment component, a sliding support frame (32), and a guide component (34). The fixing module (5) is located in the middle of the device. The fixing module (5) includes two semi-circular clamping blocks (51) arranged opposite each other. The two clamping blocks (51) surround each other to fix the main body of the caisson (6). T-shaped sliders (52) are provided on the outer sides of both ends of the clamping blocks (51). Both ends of the clamping blocks (51) are connected to the height adjustment modules (3) on the left and right sides respectively. The attitude adjustment module (4) includes two identical working units, which are respectively set at the front and rear ends of the device. The attitude adjustment module (4) includes an adjustment component (41) and a fixed support frame (42). Each working unit is provided with two adjustment components (41). The adjustment component (41) includes a power element (413) and a roller (412) driven by the power element (413). The outer arc surface of the roller (412) contacts the outer arc surface of the clamping block (51), and the clamping block (51) and the caisson body (6) are rotated by friction to make adjustment.

2. The caisson sinking construction device according to claim 1, characterized in that: The height adjustment component is disposed between the mounting frame (31) and the sliding support frame (32). The two ends of the sliding support frame (32) are slidably engaged with the mounting frame (31) through the guide component (34). The sliding support frame (32) has a slot (321) on its inner side. The height adjustment component is a hydraulic cylinder (33), the mounting bracket (31) is an inverted U-shape, the guide component (34) includes a guide rail (341), a linear slider (342) and a connecting plate (343), the guide rail (341) is fixedly installed on the inner side of the mounting bracket (31), the two ends of the sliding support bracket (32) are equipped with linear sliders (342) through the connecting plate (343), the linear sliders (342) slide with the guide rail (341), and the sliding support bracket (32) is slidably connected to the mounting bracket (31) through the guide rail (341) and the linear sliders (342).

3. The caisson sinking construction device according to claim 1, characterized in that: The adjustment component (41) is disposed on the inner side of the fixed support frame (42). The adjustment component (41) and the fixed support frame (42) are slidably engaged. Both ends of the fixed support frame (42) are fixedly connected to the mounting frame (31).

4. The caisson sinking construction device according to claim 1, characterized in that: The middle section of the slot one (321) of the sliding support frame (32) is also provided with a strip groove (322), and sliding arc grooves (323) are provided on both sides of the slot one (321). The sliding arc grooves (323) are connected to the strip grooves (322). The clamping block (51) slides in contact with the sliding support frame (32) through the T-shaped slider (52), the sliding arc groove (323) and the strip groove (322).

5. The caisson sinking construction device according to claim 1, characterized in that: The upper surface of the fixed support frame (42) is provided with a sliding groove (421), the opening of the sliding groove (421) extends to the inner side, the side of the fixed support frame (42) facing the inner side is provided with a slot (422), the sliding groove (421) extends downward to connect with the slot (422), and the bottom of the slot (422) is provided with a sliding groove (423). The attitude adjustment module (4) also includes a second hydraulic cylinder (43), which is located at the bottom of the second slide groove (423). The output end of the second hydraulic cylinder (43) faces the outside of the second slot (422). A push plate (44) is fixedly installed on the output end of the second hydraulic cylinder (43). The push plate (44) slides and engages with the fixed support frame (42) through the second slide groove (423).

6. The caisson sinking construction device according to claim 1, characterized in that: The adjustment component (41) includes a rectangular shell (416), which is disposed at the bottom of the adjustment component (41). The adjustment component (41) slides with the fixed support frame (42) through the rectangular shell (416) and the slide groove (421). The side of the push plate (44) contacts the side of the rectangular shell (416).

7. The caisson sinking construction device according to claim 1, characterized in that: The adjustment assembly (41) also includes a housing (411), on which a first rotating shaft (414) and a second rotating shaft (415) are rotatably mounted. The lower ends of the first rotating shaft (414) and the second rotating shaft (415) extend downward out of the housing (411). A roller (412) is fixedly mounted on a section of the first rotating shaft (414) and the second rotating shaft (415) outside the housing (411). The outer arc surface of the roller (412) extends out of the side of the housing (411), and the outer arc surface of the roller (412) contacts the outer arc surface of the clamping block (51). The power element (413) is located inside the housing (411). The first shaft (414) and the second shaft (415) are fixedly mounted with pulleys on a section inside the housing (411). The output end of the power element (413) is also fixedly mounted with pulleys. The power element (413) transmits power to the first shaft (414) and the second shaft (415) through belt drive.

8. The caisson sinking construction device according to claim 1, characterized in that: The two clamping blocks (51) are in contact at both ends, and multiple mounting holes (521) are provided on the opposite sides of the two T-shaped sliders (52). Each mounting hole (521) is provided with a support rod (53). The support rod (53) slides with the two corresponding mounting holes (521) respectively. The length of the support rod (53) is less than twice the depth of the mounting hole (521). The support rod (53) is a cylindrical shape with one end open. A spring (531) is installed inside the support rod (53). The initial length of the spring (531) is more than twice the depth of the mounting hole (521). One end of the spring (531) abuts against the bottom of the cylindrical support rod (53), and the other end abuts against the bottom of the opposite mounting hole (521).

9. A caisson sinking construction device according to claim 1, characterized in that: A connecting block (2) is fixedly installed on the outer side of one of the fixed support frames (42), and the device is connected to the excavator (1) through the connecting block (2).

10. A construction method for a caisson sinking construction device, characterized in that, Includes the following steps: S1: Move the device to the designated location using an excavator (1), and the excavator (1) will carry out the excavation of the foundation pit in the appropriate location; S2: Place the main body of the caisson (6) within the enclosed space of the two clamping blocks (51); S3: Start hydraulic cylinder two (43), its output end pushes push plate (44) to slide in slide groove two (423), push plate (44) pushes rectangular shell (416) to slide in slide groove one (421), at this time the adjustment component (41) moves laterally, the outer arc surface of roller (412) abuts against the outer arc surface of clamping block (51) and pushes the two clamping blocks (51) closer, T-shaped slider (52) moves from both sides of strip groove (322) to the middle position and connects with sliding arc groove (323), support rod (53) is inserted into mounting hole (521) and squeezes spring (531) to achieve clamping of caisson body (6); S4: Start the power element (413), drive the drum (412) to rotate through the synchronous belt pulley, and drive the clamping block (51) and the caisson body (6) to rotate slightly in both directions through friction, so as to adjust the posture of the caisson body (6); S5: Start hydraulic cylinder one (33), its output end drives the sliding support frame (32) to move down smoothly, driving the clamping block (51) and the caisson body (6) to move down synchronously. The adjustment component (41) continues to operate. The height adjustment module (3) cooperates with the adjustment component (41) to realize that the caisson body (6) rotates and sinks at the same time. S6: After the stage sinking is completed, the push plate (44) is retracted by the second hydraulic cylinder (43), the clamping block (51) is separated under the action of the spring (531), the first hydraulic cylinder (33) is retracted, the sliding support frame (32) is moved up, and the second hydraulic cylinder (43) is started again to make the clamping block (51) clamp the upper part of the caisson body (6); S7: The excavator (1) continues to excavate downward through the middle of the caisson body (6), repeating steps S4-S6 to achieve continuous sinking of the caisson body (6).

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