Numerical control hoisting mechanism for sinking well

Abstract

This application provides a CNC hoisting mechanism for caissons, relating to the field of caisson assembly, including a lifting mechanism. To address the problem in existing technologies where multiple cutting edge segments and standard segments are assembled into a ring one by one using a method of hoisting and securing each segment individually, resulting in cumbersome assembly procedures and low overall assembly efficiency, this application employs a connecting mechanism. This mechanism drives the standard ring and cutting edge ring to connect as a whole through arc-shaped blocks and limiting posts, reducing the cumbersome procedures of piece-by-piece assembly and improving assembly efficiency. Furthermore, the connecting mechanism solves the problem in existing technologies where misalignment between the standard ring and cutting edge ring leads to low assembly accuracy. It also solves the problem in existing technologies where large gaps between the standard ring and cutting edge ring result in poor waterproofing. Finally, the connecting mechanism addresses the problem in existing technologies where manual cleaning of the connection surface leads to low assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of caisson assembly, and more specifically, to a CNC hoisting mechanism for caissons. Background Technology

[0002] The CNC hoisting mechanism for caissons is a lifting and positioning device specifically designed for large caisson construction scenarios. It uses a CNC system to automatically lift, move, align, and adjust the posture of caisson components, and is used for assembling caisson segments, transferring materials, and correcting deviations during sinking.

[0003] For example, the Chinese invention patent (publication number: CN118309095B) discloses "A prefabricated caisson hoisting mechanism and assembly construction method", the description of which discloses: a cutting edge ring composed of splicing several cutting edge tube segments and a standard ring composed of splicing several standard tube segments. The standard ring is set on the cutting edge ring. Fasteners and connection areas with tenon and mortise structure are provided between adjacent cutting edge tube segments, between adjacent standard tube segments, and between the cutting edge ring and the standard ring. The splicing seams on the cutting edge ring and the standard ring are staggered. Lifting lugs are provided on both the cutting edge tube segments and the standard tube segments. The hoisting mechanism is used to hoist and assemble the cutting edge tube segments and the standard tube segments. However, the above-mentioned prefabricated caisson hoisting mechanism and assembly construction method have some shortcomings in actual use: In the above-mentioned prior art, multiple cutting edge segments and standard segments are set. The cutting edge segments are hoisted one by one by the hoisting mechanism and fixed one by one by fasteners, so that multiple cutting edge segments are spliced ​​into a cutting edge ring. Then, the standard segments are hoisted one by one by the hoisting mechanism and connected to the cutting edge ring, and fixed one by one by fasteners, so that multiple standard segments are assembled into a standard ring, thereby realizing the assembly of the standard ring and the cutting edge ring. The assembly process of this device is cumbersome, resulting in low overall assembly efficiency.

[0004] Therefore, we made improvements and proposed a CNC hoisting mechanism for caissons. Summary of the Invention

[0005] The purpose of this invention is to address the problem that the current method of assembling multiple cutting edge segments and standard segments into a ring by hoisting and fastening them one by one is cumbersome and has low overall assembly efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides a CNC hoisting mechanism for caissons to improve the aforementioned problems.

[0007] The application is as follows: It includes a lifting mechanism, a lifting rope disposed on the lifting mechanism, a standard ring and a cutting edge ring disposed on the outside of the lifting mechanism, and a connecting mechanism disposed on the standard ring and the cutting edge ring; The connecting mechanism includes a first groove on the standard ring, a second groove on the cutting edge ring, a limiting post slidably disposed on the first and second grooves, an arc-shaped block disposed on the limiting post, a first groove on the standard ring, a second groove on the cutting edge ring, lifting rings disposed on the limiting post, the standard ring and the cutting edge ring respectively, and a fixing component disposed on the limiting post.

[0008] As a preferred technical solution of this application, the limiting post is adapted to the first slot and the second slot, and the arc-shaped block is slidably disposed on the first groove and the second groove, and the arc-shaped block is adapted to the first groove and the second groove.

[0009] As a preferred technical solution of this application, both ends of the limiting post are provided with frustum portions, which are adapted to slot one and slot two.

[0010] As a preferred technical solution of this application, the fixing component includes threaded grooves respectively provided on the standard ring and the cutting edge ring, a connecting groove provided on the limiting post, a threaded post threadedly connected to the standard ring, and a driving block provided on the threaded post.

[0011] As a preferred technical solution of this application, the threaded post is slidably disposed on the connecting groove, and the threaded post and the threaded groove are mutually adapted.

[0012] As a preferred technical solution of this application, the arc-shaped block is provided with a cavity, and the arc-shaped block is provided with a spray groove.

[0013] As a preferred technical solution of this application, the cavity and the connecting groove are interconnected, and the ejection groove is inclined.

[0014] As a preferred technical solution of this application, the outer side of the limiting post and the arc-shaped block is provided with an installation groove, and a rubber water-stop ring is provided on the installation groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. In order to solve the problem that the existing technology uses a method of hoisting and fastening multiple cutting edge segments and standard segments one by one to assemble them into a ring, which is cumbersome in terms of assembly process and low overall assembly efficiency, this application sets up a connecting mechanism. The connecting mechanism drives the standard ring and the cutting edge ring to be connected as a whole through the arc block and the limiting column, thereby reducing the cumbersome process of assembling one piece by one and improving the assembly efficiency. 2. By using the connecting mechanism, the standard ring and the cutting edge ring are guided and connected, reducing the time for alignment adjustment between the standard ring and the cutting edge ring, avoiding docking deviation and misalignment, ensuring the concentricity and perpendicularity of the standard ring and the cutting edge ring, improving the assembly accuracy, and solving the problem of low assembly accuracy caused by docking deviation when the standard ring and the cutting edge ring are docked in the existing technology. 3. Through the set connection mechanism, the standard ring and the cutting edge ring are spliced ​​by mortise and tenon joints. The mortise and tenon joints increase the contact area and the threaded fixation of the standard ring and the cutting edge ring, reducing water seepage from the gap between the standard ring and the cutting edge ring, improving the waterproof effect of the standard ring and the cutting edge ring, and solving the problem of low waterproof effect caused by large gaps in the splicing of the standard ring and the cutting edge ring in the existing technology. 4. By using the connecting mechanism, the air blown from the spray groove is used to clean the connection end of the standard ring and the cutting edge ring, reducing the embedding of impurities that may cause uneven splicing gaps. This improves the fit of the connection surfaces of the standard ring and the cutting edge ring, reduces the need for subsequent manual cleaning of the connection ends of the standard ring and the cutting edge ring, and solves the problem of low assembly efficiency caused by manual cleaning of impurities on the mating surface in the prior art. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of the CNC hoisting mechanism for caissons provided in this application; Figure 2 A schematic diagram of the overall structure of the standard ring and cutting edge ring of the CNC hoisting mechanism for caissons provided in this application; Figure 3 A schematic diagram of the overall structure of the limiting column and arc block of the CNC hoisting mechanism for caissons provided in this application; Figure 4 The CNC hoisting mechanism for caissons provided in this application Figure 3 Enlarged structural diagram of area A in the middle; Figure 5 A partial cross-sectional structural schematic diagram of the standard ring and cutting edge ring of the CNC hoisting mechanism for caissons provided in this application; Figure 6 The CNC hoisting mechanism for caissons provided in this application Figure 5 Enlarged structural diagram of area B in the middle; Figure 7 A partial cross-sectional structural schematic diagram of the limiting column and arc block of the CNC hoisting mechanism for caissons provided in this application; Figure 8 A schematic diagram of the internal structure of slot one and slot two of the CNC hoisting mechanism for caissons provided in this application; Figure 9 A schematic diagram of the internal structure of the limiting column and arc block of the CNC hoisting mechanism for caissons provided in this application.

[0017] Marked in the image: 1. Lifting mechanism; 101. Lifting rope; 102. Standard ring; 103. Cutting foot ring; 2. Connecting mechanism; 201. Slot 1; 202. Slot 2; 203. Limiting post; 204. Arc-shaped block; 205. Groove 1; 206. Groove 2; 207. Lifting ring; 208. Frustum; 209. Cavity; 210. Ejection groove; 211. Mounting groove; 212. Rubber waterstop ring; 3. Fixing component; 301. Threaded groove; 302. Connecting groove; 303. Threaded post; 304. Drive block. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0019] As described in the background section, multiple cutting edge segments and standard segments are assembled into a ring one by one by hoisting and fastening them one by one. This method is cumbersome and results in low overall assembly efficiency.

[0020] To solve this technical problem, the present invention provides a CNC hoisting mechanism for caissons, which is applied to caisson assembly.

[0021] For details, please refer to Figure 1 - Figure 9 As shown, the CNC hoisting mechanism for the caisson specifically includes: a lifting mechanism 1, a hoisting rope 101 set on the lifting mechanism 1, a standard ring 102 and a cutting edge ring 103 set on the outside of the lifting mechanism 1, and a connecting mechanism 2 set on the standard ring 102 and the cutting edge ring 103. In the prior art, the lifting mechanism 1 is used to perform multi-point synchronous balanced lifting of the standard ring 102 and the cutting edge ring 103 to realize the docking of the connecting ends of the standard ring 102 and the cutting edge ring 103; The connecting mechanism 2 includes a first groove 201 on the standard ring 102, a second groove 202 on the cutting edge ring 103, a limiting post 203 slidably disposed on the first groove 201 and the second groove 202, an arc-shaped block 204 disposed on the limiting post 203, a first groove 205 disposed on the standard ring 102, a second groove 206 disposed on the cutting edge ring 103, lifting rings 207 disposed on the limiting post 203, the standard ring 102 and the cutting edge ring 103 respectively, and a fixing component 3 disposed on the limiting post 203.

[0022] The CNC hoisting mechanism for caissons provided by this invention addresses the problem in the prior art where multiple cutting edge segments and standard segments are assembled into a ring one by one by hoisting and fastening each piece, resulting in cumbersome assembly procedures and low overall assembly efficiency. This application provides a connecting mechanism 2, which drives the standard ring 102 and the cutting edge ring 103 to be guided and connected by the arc block 204 and the limiting column 203, thereby reducing the cumbersome procedures caused by assembling each piece and improving assembly efficiency. By using the connecting mechanism 2, the standard ring 102 and the cutting edge ring 103 are guided and connected, reducing the time for alignment adjustment between the standard ring 102 and the cutting edge ring 103, avoiding docking deviation and misalignment, ensuring the concentricity and perpendicularity of the standard ring 102 and the cutting edge ring 103, improving the assembly accuracy, and solving the problem in the prior art that docking deviation is easy to occur between the standard ring 102 and the cutting edge ring 103, resulting in low assembly accuracy; The connecting mechanism 2 enables the mortise and tenon joint of the standard ring 102 and the cutting edge ring 103. The mortise and tenon joint increases the contact area and the threaded fixation of the standard ring 102 and the cutting edge ring 103, reducing water seepage through the gap between the standard ring 102 and the cutting edge ring 103, thus improving the waterproof effect of the standard ring 102 and the cutting edge ring 103. This solves the problem of low waterproof effect caused by large gaps in the splicing of the standard ring 102 and the cutting edge ring 103 in the prior art. By using the connecting mechanism 2, the air blown by the spraying groove 210 is used to clean the connecting end of the standard ring 102 and the cutting edge ring 103, reducing the embedding of impurities that cause uneven splicing gaps, improving the fit of the connecting surfaces of the standard ring 102 and the cutting edge ring 103, reducing the subsequent manual cleaning of the connecting end of the standard ring 102 and the cutting edge ring 103, and solving the problem of low assembly efficiency caused by manual cleaning of impurities on the mating surface in the prior art.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the CNC hoisting mechanism for the caisson has a limiting column 203 that is adapted to the first slot 201 and the second slot 202, and an arc-shaped block 204 that is slidably set on the first groove 205 and the second groove 206 respectively, with the arc-shaped block 204 adapted to the first groove 205 and the second groove 206. In use, the lifting rope 101 is fixed to the lifting ring 207 of the cutting edge ring 103. The cutting edge ring 103 is then lifted at multiple points using the lifting mechanism 1 to ensure it is positioned at the designated location in the pit. The lifting rope 101 is then fixed to the lifting ring 207 of the limiting post 203. The limiting post 203 and the arc-shaped block 204 are then lifted at multiple points using the lifting mechanism 1 to ensure they are balanced. The limiting post 203 is then slidably inserted into the second slot 202, and the arc-shaped block 204 is simultaneously slidably inserted into the second groove 206. Inside, the limiting post 203 and the arc-shaped block 204 are fixed on the cutting edge ring 103. The lifting rope 101 is fixed on the lifting ring 207 of the standard ring 102. The standard ring 102 is lifted in a multi-point balanced manner by the lifting mechanism 1. The slot 201 is aligned with the limiting post 203 and lifted vertically downward, so that the slot 201 slides onto the limiting post 203, and the groove 205 slides onto the arc-shaped block 204 simultaneously, realizing the docking of the standard ring 102 and the cutting edge ring 103. Figure 5 As shown, the standard ring 102 is guided by the limiting post 203, enabling precise docking between the standard ring 102 and the cutting edge ring 103. This guiding positioning reduces the time required for alignment adjustment between the standard ring 102 and the cutting edge ring 103, avoiding docking deviations and misalignments, ensuring the concentricity and perpendicularity of the standard ring 102 and the cutting edge ring 103, and improving assembly accuracy. The standard ring 102 and the cutting edge ring 103 are lifted as a whole at multiple points with balanced force, and guided by the arc block 204 and the limiting post 203, reducing the tedious process of piece-by-piece assembly. Simultaneously, multi-point lifting ensures balanced force distribution, preventing unilateral loads from causing the cutting edge ring 103 to skew or deform, thus improving assembly efficiency. Figure 6 As shown, when the arc-shaped block 204 engages with groove one 205 and groove two 206, a mortise and tenon joint is achieved. The interlocking mortise and tenon increases the contact area, reducing water seepage through the gaps between the standard ring 102 and the cutting edge ring 103, thus improving the waterproofing effect of the standard ring 102 and the cutting edge ring 103. Figure 5As shown, the two ends of the standard ring 102 are respectively provided with a slot 201 and a groove 205. The length of the two sets of slots 201 on the standard ring 102 is equal to the length of the limiting post 203, and the length of the two sets of grooves 205 on the standard ring 102 is equal to the length of the arc block 204. When the standard rings 102 are connected, the limiting post 203 and the arc block 204 are hoisted by the lifting mechanism 1. Similarly, the standard rings 102 are accurately connected by the limiting post 203 and the arc block 204. The standard ring 102 and the cutting foot ring 103 are fixed by the fixing component 3. Similarly, the standard rings 102 are fixed by the fixing component 3.

[0027] Furthermore, both ends of the limiting post 203 are provided with a frustum portion 208, which is adapted to the first slot 201 and the second slot 202. The conical surface on the outer side of the frustum 208 reduces the difficulty of docking the limiting post 203 and the first slot 201 and the second slot 202, thereby improving the assembly efficiency of the equipment. Furthermore, the fixing component 3 includes threaded grooves 301 respectively provided on the standard ring 102 and the cutting edge ring 103, a connecting groove 302 provided on the limiting post 203, a threaded post 303 threadedly connected to the standard ring 102, and a driving block 304 provided on the threaded post 303. Furthermore, the threaded post 303 is slidably disposed on the connecting groove 302, and the threaded post 303 and the threaded groove 301 are mutually adapted; When the standard ring 102 is hoisted onto the cutting edge ring 103, the threaded post 303 and the drive block 304 are hoisted simultaneously. The threaded post 303 slides into the connecting groove 302. After the standard ring 102 and the cutting edge ring 103 are aligned, as shown... Figure 4 As shown, the drive block 304 is nut-shaped. The existing tightening equipment drives the drive block 304 to rotate. The rotation of the drive block 304 drives the threaded column 303 to rotate synchronously. The threaded column 303 rotates and slides along the threaded groove 301. The threaded column 303 is fixed in the threaded groove 301, thereby realizing the fixation of the standard ring 102 and the cutting foot ring 103, improving the sealing and waterproof effect of the standard ring 102 and the cutting foot ring 103, and improving the structural stability after the standard ring 102 and the cutting foot ring 103 are connected. Similarly, by rotating the threaded column 303 and fixing it in the threaded groove 301, the standard ring 102 is fixed to the standard ring 102. The connecting mechanism 2 drives the standard ring 102 and the cutting edge ring 103 to be guided and connected by the arc block 204 and the limiting post 203, reducing the tedious process of assembling piece by piece and improving assembly efficiency. The connecting mechanism 2 also drives the standard ring 102 and the cutting edge ring 103 to be guided and connected, reducing the time for alignment adjustment between the standard ring 102 and the cutting edge ring 103, avoiding docking deviation and misalignment, ensuring the concentricity and perpendicularity of the standard ring 102 and the cutting edge ring 103, and improving the assembly accuracy. The connecting mechanism 2 realizes the mortise and tenon splicing of the standard ring 102 and the cutting edge ring 103. The mortise and tenon interlocking increases the contact area and the threaded fixation of the standard ring 102 and the cutting edge ring 103 reduces water seepage in the gaps between the standard ring 102 and the cutting edge ring 103, and improves the waterproof effect of the standard ring 102 and the cutting edge ring 103.

[0028] Example 2 further optimizes the CNC hoisting mechanism for caissons provided in Example 1, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a cavity 209 is provided inside the arc-shaped block 204, and an ejection groove 210 is provided on the arc-shaped block 204. Furthermore, the cavity 209 and the connecting groove 302 are interconnected, and the ejection groove 210 is set at an angle; like Figure 6 As shown, the ejector groove 210 is inclined, and the output end of the ejector groove 210 is aligned with the mating end of the cutting edge ring 103. When the standard ring 102 is hoisted onto the cutting edge ring 103, the retaining groove 201 slides onto the limiting post 203. At this time, the space formed by the retaining groove 201, the ejector groove 210, and the cavity 209 gradually decreases. The air in the retaining groove 201, the ejector groove 210, and the cavity 209 is compressed and discharged from the ejector groove 210. When the standard ring 102 gradually slides and mates with the cutting edge ring 103, the ejector groove 210 is aligned with the limiting post 203. When the air is blown from the spray groove 210, it cleans the connection end of the standard ring 102 and the cutting foot ring 103. In this way, impurities are blown away from the connection end of the standard ring 102 and the cutting foot ring 103, reducing the situation where impurities are embedded and causing uneven splicing gaps. This improves the fit of the connection surface of the standard ring 102 and the cutting foot ring 103 and reduces the subsequent manual cleaning process of the connection end of the standard ring 102 and the cutting foot ring 103. Similarly, the connection end of the standard ring 102 is cleaned in this way. Furthermore, the outer side of the limiting post 203 and the arc block 204 is provided with an installation groove 211, and a rubber waterstop ring 212 is provided on the installation groove 211; The gap between the standard ring 102 and the cutting foot ring 103 is sealed by the rubber water-stop ring 212, which further improves the waterproof effect of the gap between the standard ring 102 and the cutting foot ring 103. Similarly, the gap between the standard ring 102 and the standard ring 103 is sealed by the rubber water-stop ring 212. The air blown by the ejector 210 through the connecting mechanism 2 cleans the connection end of the standard ring 102 and the cutting edge ring 103, reducing the embedding of impurities and causing uneven splicing gaps, thus improving the fit of the connection surfaces of the standard ring 102 and the cutting edge ring 103.

[0029] The usage process of the CNC hoisting mechanism for caissons provided by this invention is as follows: In use, the lifting rope 101 is fixed to the lifting ring 207 of the cutting edge ring 103. The cutting edge ring 103 is then lifted at multiple points using the lifting mechanism 1 to ensure it is positioned at the designated location in the pit. The lifting rope 101 is then fixed to the lifting ring 207 of the limiting post 203. The limiting post 203 and the arc-shaped block 204 are then lifted at multiple points using the lifting mechanism 1 to ensure they are balanced. The frustum 208 of the limiting post 203 is slidably inserted into the slot 202, and the arc-shaped block 204 is simultaneously... The sliding insertion groove 206 is inserted into the standard ring 102, fixing the limiting post 203 and the arc-shaped block 204 onto the cutting edge ring 103. The lifting rope 101 is fixed to the lifting ring 207 of the standard ring 102. The standard ring 102 is lifted in a multi-point balanced manner using the lifting mechanism 1. The slot 201 is aligned with the limiting post 203 and lifted vertically downwards, allowing the slot 201 to slide onto the limiting post 203. At this time, the space formed by the slot 201, the ejection groove 210, and the cavity 209 gradually decreases in size. Small, the air in the slot 201, the ejection slot 210, and the cavity 209 is compressed and discharged from the ejection slot 210. As the standard ring 102 gradually slides and docks with the cutting edge ring 103, the air ejected from the ejection slot 210 cleans the connection end between the standard ring 102 and the cutting edge ring 103. The threaded post 303 slides into the connecting slot 302, and the groove 205 simultaneously slides and assembles on the arc-shaped block 204. After the standard ring 102 and the cutting edge ring 103 are docked, the existing... The tightening device drives the drive block 304 to rotate, and the rotation of the drive block 304 drives the threaded column 303 to rotate synchronously. The threaded column 303 rotates and slides along the threaded groove 301. The threaded column 303 is fixed in the threaded groove 301, thereby realizing the fixation of the standard ring 102 and the cutting foot ring 103. The gap between the standard ring 102 and the cutting foot ring 103 is sealed by the rubber water-stop ring 212. Similarly, the docking of the standard ring 102 and the standard ring 103 is realized in this way.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A CNC hoisting mechanism for caissons, comprising a lifting mechanism (1), a lifting rope (101) disposed on the lifting mechanism (1), a standard ring (102) and a cutting edge ring (103) disposed on the outer side of the lifting mechanism (1), characterized in that, Includes a connecting mechanism (2) disposed on the standard ring (102) and the cutting foot ring (103); The connecting mechanism (2) includes a slot one (201) on the standard ring (102), a slot two (202) on the cutting edge ring (103), a limiting post (203) slidably disposed on the slot one (201) and the slot two (202), an arc block (204) disposed on the limiting post (203), a groove one (205) disposed on the standard ring (102), a groove two (206) disposed on the cutting edge ring (103), lifting rings (207) respectively disposed on the limiting post (203), the standard ring (102) and the cutting edge ring (103), and a fixing component (3) disposed on the limiting post (203).

2. The CNC hoisting mechanism for caissons according to claim 1, characterized in that, The limiting post (203) is adapted to the first slot (201) and the second slot (202), and the arc-shaped block (204) is slidably disposed on the first groove (205) and the second groove (206), respectively.

3. The CNC hoisting mechanism for caissons according to claim 2, characterized in that, Both ends of the limiting post (203) are provided with a frustum (208), which is adapted to the first slot (201) and the second slot (202).

4. The CNC hoisting mechanism for caissons according to claim 3, characterized in that, The fixing component (3) includes threaded grooves (301) respectively provided on the standard ring (102) and the cutting edge ring (103), a connecting groove (302) provided on the limiting post (203), a threaded post (303) threadedly connected to the standard ring (102), and a driving block (304) provided on the threaded post (303).

5. The CNC hoisting mechanism for caissons according to claim 4, characterized in that, The threaded post (303) is slidably disposed on the connecting groove (302), and the threaded post (303) and the threaded groove (301) are adapted to each other.

6. The CNC hoisting mechanism for caissons according to claim 5, characterized in that, The arc-shaped block (204) is provided with a cavity (209), and the arc-shaped block (204) is provided with a spray groove (210).

7. The CNC hoisting mechanism for caissons according to claim 6, characterized in that, The cavity (209) and the connecting groove (302) are interconnected, and the ejection groove (210) is inclined.

8. The CNC hoisting mechanism for caissons according to claim 1, characterized in that, The outer side of the limiting post (203) and the arc block (204) is provided with an installation groove (211), and a rubber waterstop ring (212) is provided on the installation groove (211).

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