Overwater pile foundation lifting device and using method thereof

Abstract

The invention provides an overwater pile foundation lifting device and a using method thereof.The overwater pile foundation lifting device comprises a mounting base capable of being mounted on a pile foundation and a crane mounted on the mounting base, and the mounting base comprises a crane mounting part and a pile foundation butt joint part arranged below the crane mounting part; a fixed opening and closing mechanism used for fixing a crane is arranged on the crane mounting part, the pile foundation butt joint part comprises a fixed insertion sleeve section arranged at the bottom of the mounting base, and a telescopic driving mechanism and a telescopic insertion core section are arranged in the fixed insertion sleeve section; the telescopic inserting core section can be driven by the telescopic driving mechanism to stretch out of or retract into the bottom of the fixed inserting sleeve section, and when the telescopic inserting core section completely retracts into the fixed inserting sleeve section, a cavity capable of being arranged outside the pile foundation in a sleeving mode is formed in the bottom of the telescopic inserting core section. The crane can be directly mounted on an overwater pile foundation through the mounting base, the operation is simple, the hoisting operation can be carried out in all directions, the overwater operation risk is reduced, and the overall hoisting operation safety and the construction efficiency are greatly improved.

Description

Technical Field

[0001] The invention relates to the field of lifting and hoisting operations, and in particular to an above-water pile foundation lifting device and a use method thereof. Background Art

[0002] It is difficult for floating cranes to move within pile groups for water operations, and the efficiency of material transfer is low. There is a lack of lifting equipment for water operations far away from revetments. Long-distance lifting on land has high safety risks and low equipment utilization rate. Although crane ships can ensure safe lifting operations, they require necessary conditions such as barges and shipping docks. For lifting construction such as material turnover and small component installation that do not require high lifting, the rental cost of the lifting equipment is greatly increased. Therefore, an above-water pile foundation lifting device and a method for using the same are proposed to solve the above problems. Summary of the invention

[0003] The main purpose of the present invention is to provide an above-water pile foundation lifting device and a method of using the same. The above-water lifting device is only fixed on the above-water pile foundation, which can meet the lifting and hoisting requirements during water operations, improve work efficiency, make construction safer and more efficient, and solve the difficulties of high safety risks and great construction difficulty in above-water lifting operations.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an above-water pile foundation lifting device and a method of using the same, comprising a mounting base that can be mounted on a pile foundation and a crane mounted on the mounting base, the mounting base comprising a crane mounting portion and a pile foundation docking portion arranged below the crane mounting portion, wherein a fixed opening and closing mechanism for fixing the crane is arranged on the crane mounting portion, and the pile foundation docking portion comprises a fixed sleeve segment arranged at the bottom of the mounting base, a telescopic driving mechanism and a telescopic core segment are arranged in the fixed sleeve segment, the telescopic core segment can be extended or retracted from the bottom of the fixed sleeve segment by the drive of the telescopic driving mechanism, and when the telescopic core segment is fully retracted into the fixed sleeve segment, a cavity that can be sleeved on the outside of the pile foundation is formed at its bottom.

[0005] In a preferred embodiment, a socket is provided at the bottom of the crane which can be inserted into the mounting portion of the crane; The fixed opening and closing mechanism comprises a clamping opening and closing mechanism arranged in the crane installation part and an opening and closing driving mechanism arranged outside the crane installation part, and the opening and closing driving mechanism is used for driving the clamping opening and closing mechanism to clamp the socket.

[0006] In the preferred embodiment, the clamping opening and closing mechanism includes an upper plate and a lower plate fixed inside the crane mounting part, a connecting shaft is arranged between the upper plate and the lower plate, a gear plate is rotatably mounted on the outside of the connecting shaft, a plurality of clamping driving grooves are arranged on the gear plate, a plurality of linear guide grooves matching the clamping guide grooves are arranged through the upper plate, a clamping movable seat is movably arranged in the linear guide groove, and a first transmission rod extending to the corresponding clamping driving groove is arranged at the bottom of the clamping movable seat; The opening and closing drive mechanism includes a mounting ring seat arranged outside the heavy machine mounting part, a first drive device is arranged on the mounting ring seat, an output shaft of the first drive device passes through the mounting ring seat and a transmission gear is installed, and an opening located at the transmission gear is also arranged on the wall surface of the heavy machine mounting part, and the transmission gear passes through the opening and engages with the gear plate.

[0007] In the preferred embodiment, an annular slot is disposed on the outside of the plug socket, and an insert block matching the annular slot is disposed on the top of the clamping movable seat; Stiffening plates are provided on both the upper and lower sides of the mounting ring seat.

[0008] In the preferred embodiment, the fixed sleeve segment is inserted into the bottom of the heavy machine mounting portion, and a plurality of slide grooves are arranged on its inner wall surface, and a plurality of sliders corresponding to the slide grooves are arranged on the outer wall surface of the top of the telescopic core segment, and the sliders slide in cooperation with the corresponding slide grooves.

[0009] In the preferred embodiment, two receiving grooves intersecting with the sliding grooves are further provided on the inner wall surface of the fixed sleeve segment, and the telescopic drive mechanism includes two lifting screws rotatably arranged in the two receiving grooves respectively, and the tops of the two lifting screws are both equipped with driven bevel gears, and the bottom of the fixed opening and closing mechanism is provided with a lifting transmission mechanism that simultaneously drives the two lifting screws to rotate.

[0010] In the preferred embodiment, the lifting transmission mechanism includes a driving motor and a dual-output reducer arranged at the bottom of the fixed opening and closing mechanism. The output shaft of the driving motor is connected to the input shaft of the dual-output reducer. Both output ends of the dual-output reducer are provided with a transmission rod. The other end of the transmission rod is provided with a transmission bevel gear meshing with the corresponding driven bevel gear. Two internal thread blocks are provided on the outer wall surface of the top of the telescopic core section, and the internal thread blocks are threadedly mounted on the outside of the corresponding lifting screw.

[0011] In the preferred embodiment, it further comprises a pile foundation locking mechanism arranged at the bottom of the telescopic insert section; The pile foundation locking mechanism includes a bottom plate arranged at the bottom end of the telescopic core segment, a plurality of first through grooves are arranged on the bottom plate, a linear guide groove is arranged at the bottom of each first through groove, an outer end of the linear guide groove is open, and a second through groove corresponding to the through groove is arranged at the top, an L-shaped locking frame is slidably arranged in the second through groove, limiting grooves are arranged on the relative inner wall surfaces of the second through groove, limiting blocks are arranged on both sides of the front end of the top of the L-shaped locking frame, and the limiting blocks are slidably matched with the matching limiting grooves, a rotating bearing is arranged at the top of the bottom plate, a turntable is rotatably arranged in the rotating bearing, a plurality of movable drive grooves corresponding to the first through grooves are arranged on the turntable, an inner gear ring is arranged at the center of the turntable, a support seat located above the turntable is also arranged inside the telescopic core segment, a second driving device is arranged at the top of the support seat, an output shaft of the second driving device passes through the support seat and a driving gear is arranged, the driving gear is meshed with the inner gear ring, and a second through rod passing through the corresponding second through groove, the first through groove and the movable drive groove is arranged at the top of the L-shaped locking frame.

[0012] In a preferred embodiment, the number and position of the L-shaped locking frames all correspond to the slide grooves, and when the telescopic plug core segment is located in the fixed plug sleeve segment, the L-shaped locking frame can be completely moved into the corresponding slide groove.

[0013] The method includes: S1. According to the type of pile foundation, appropriately adjust the pile foundation docking part at the bottom of the installation base; When the type of pile foundation is a solid pile, the telescopic plug-in section of the pile foundation docking part is retracted into the fixed plug-in section, and at the same time, a cavity that can be sleeved on the outside of the pile foundation is formed at the bottom of the fixed plug-in section, and then the fixed plug-in section of the installation base is aligned with the solid pile through hoisting, so that it slowly falls on the pile foundation; When the pile foundation type is a hollow pile, extend the telescopic core section, and at the same time, through the sections of different diameters of the pile foundation docking part, adapt to the different inner diameters of the hollow piles, and align the pile foundation docking part of the installation base with the hollow pile through hoisting, so that it slowly falls on the pile foundation; S2, then hoisting the crane onto the crane installation part of the adjustment installation base, and fixing it through the crane installation part base; S3. After the crane is firmly installed on the pile foundation, it can proceed to normal operation.

[0014] The present invention provides an above-water pile foundation lifting device and a method for using the same. The crane can be directly installed on the above-water pile foundation by installing a base. The operation is simple, and lifting operations can be performed in all directions, thereby reducing the risks of above-water operations, greatly improving the overall lifting operation safety and construction efficiency, and having good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is the overall structure diagram of the present invention; Figure 2 This is an exploded structural diagram of the mounting base and the connector of the present invention; Figure 3 The present invention Figure 2 Half-section structural diagram of the installation base; Figure 4 The present invention Figure 3 Look at the structural diagram; Figure 5 The present invention Figure 3 Structural diagram of the telescopic core section in the retracted state; Figure 6 The present invention Figure 5 Look at the structural diagram; Figure 7 This is an exploded structural diagram of the fixed opening and closing mechanism of the present invention; Figure 8 This is an exploded structural diagram of the pile foundation butt joint of the present invention; Fig. 9 It is a structural diagram of the telescopic drive mechanism of the present invention; Fig.10 This is an exploded structural diagram of the pile foundation locking mechanism of the present invention; In the figure: pile foundation 1; mounting base 2; heavy machine mounting part 20; mounting ring seat 201; opening 202; stiffening plate 203; pile foundation docking part 21; fixed sleeve segment 210; receiving groove 2101; slide groove 2102; telescopic core segment 211; slider 2110; internal thread block 2111; telescopic drive mechanism 212; lifting screw 2120; driven bevel gear 2121; drive motor 2022; dual output reducer 2023; transmission rod 2024; transmission bevel gear 2025; fixed opening and closing mechanism 22; upper plate 220; connecting shaft 221; lower plate 222; gear plate 223; clamping drive groove 224; linear guide groove 225 ; Clamping movable seat 226; First transmission rod 227; Insert block 228; First driving device 229; Transmission gear 2210; Pile foundation locking mechanism 23; Bottom plate 230; First through groove 231; Linear guide groove 232; Second through groove 234; L-shaped locking frame 235; Limit block 236; Second through rod 237; Limit groove 238; Rotary bearing 239; Turntable 2310; Moving driving groove 2311; Internal gear ring 2312; Support seat 2313; Second driving device 2314; Driving gear 2315; Crane 3; Plug seat 301; Annular slot 302. DETAILED DESCRIPTION

[0016] Example 1 like Figure 1-9As shown, an above-water pile foundation lifting device comprises a mounting base 2 which can be mounted on a pile foundation 1 and a crane 3 mounted on the mounting base 2, wherein the mounting base 2 comprises a crane mounting portion 20 and a pile foundation docking portion 21 arranged below the crane mounting portion 20, wherein both upper and lower ends of the crane mounting portion 20 are open, wherein a fixed opening and closing mechanism 22 for fixing the crane 3 is arranged on the crane mounting portion 20, and the pile foundation docking portion 21 comprises a fixed sleeve segment 210 arranged at the bottom of the mounting base 2, wherein a telescopic driving mechanism 212 and a telescopic core segment 211 are arranged in the fixed sleeve segment 210, and the telescopic core segment 211 can be extended from or retracted into the bottom of the fixed sleeve segment 210 by the drive of the telescopic driving mechanism 212, and when the telescopic core segment 211 is completely retracted into the fixed sleeve segment 210, a cavity which can be sleeved on the outside of the pile foundation 1 is formed at its bottom.

[0017] With such a design, when facing a solid pile, the telescopic core segment 211 can be completely retracted into the fixed sleeve segment 210, and the mounting base 2 can be sleeved on the outside of the solid pile by using the cavity formed at the bottom of the fixed sleeve segment 210 to complete the installation. In addition, when facing a hollow pile, the telescopic core segment 211 can be extended to form three plug-in cores with different diameters with the fixed sleeve segment 210 and the crane mounting part 20, which can cope with hollow piles with different inner diameters and complete the installation by inserting it into the hollow pile.

[0018] It should be noted that the crane 3 in this embodiment is a full-slewing crane.

[0019] In a preferred embodiment, a socket 301 which can be inserted into the crane installation part 20 is provided at the bottom of the crane 3. When docking, the socket 301 is inserted into the crane installation part 20 through the opening at the top.

[0020] The fixed opening and closing mechanism 22 includes a clamping opening and closing mechanism arranged in the crane installation part 20 and an opening and closing driving mechanism arranged outside the crane installation part 20 , and the opening and closing driving mechanism is used to drive the clamping opening and closing mechanism to clamp the socket 301 .

[0021] Furthermore, the clamping opening and closing mechanism includes an upper plate 220 and a lower plate 222 fixed inside the crane mounting part 20, a connecting shaft 221 is arranged between the upper plate 220 and the lower plate 222, and a gear plate 223 is rotatably mounted on the outside of the connecting shaft 221. Specifically, the gear plate 223 is rotatably mounted on the outside of the connecting shaft 221 through a bearing, and a plurality of clamping drive grooves 224 are arranged on the gear plate 223. The clamping drive grooves 224 are arc grooves extending from the outer ring to the inner ring. In the present embodiment, the number of the clamping drive grooves 224 is six, and a plurality of linear guide grooves 225 matching the clamping guide grooves 224 are arranged through the upper plate 220, a clamping movable seat 226 is movably mounted in the linear guide grooves 225, and a first transmission rod 227 extending to the corresponding clamping drive groove 224 is arranged at the bottom of the clamping movable seat 226.

[0022] With such a design, the clamping movable seat 226 can be moved inward or outward by the forward and reverse rotation of the gear plate 223 under the restriction of the linear guide groove 225 and the action of the first transmission rod 227 and the clamping drive groove 224, thereby achieving the function of clamping the socket 301 or releasing the socket 301.

[0023] The opening and closing driving mechanism includes a mounting ring seat 201 arranged on the outside of the heavy machine mounting part 20, and a first driving device 229 is arranged on the mounting ring seat 201. The output shaft of the first driving device 229 passes through the mounting ring seat 201 and is installed with a transmission gear 2210. An opening 202 located at the transmission gear 2210 is also arranged on the wall surface of the heavy machine mounting part 20. The transmission gear 2210 passes through the opening 202 and meshes with the gear plate 223, so that the transmission gear 2210 can rotate under the drive of the first driving device 229, and is rotated through the meshing relationship with the gear plate 223, thereby realizing the above-mentioned function.

[0024] In the preferred embodiment, an annular slot 302 is provided on the outside of the plug-in socket 301, and an insert block 228 adapted to the annular slot 302 is provided on the top of the clamping movable seat 226. The insert block 228 extends inwardly, and its outer side is flush with the outer side of the clamping movable seat 226, so that when clamping, the clamping effect can be further improved by inserting the insert block 228 into the annular slot 302.

[0025] In addition, stiffening plates 203 are provided on both the upper and lower sides of the mounting ring seat 201 to effectively improve the structural strength.

[0026] In the preferred embodiment, the fixed sleeve segment 210 is inserted into the bottom of the heavy machine mounting part 20, and a plurality of slide grooves 2102 are arranged on its inner wall surface. Specifically, the upper and lower ends of the fixed sleeve segment 210 are both open, and the outer diameter of the fixed sleeve segment 210 is adapted to the inner diameter of the heavy machine mounting part 20. The fixed sleeve segment 210 is inserted into the bottom of the heavy machine mounting part 20 and is located below the fixed opening and closing mechanism 22. The outer diameter of the telescopic core segment 211 is adapted to the inner diameter of the fixed sleeve segment 210, and its upper and lower ends are also open. In this embodiment, the number of the slide grooves 2102 is six, and a plurality of sliders 2110 corresponding to the slide grooves 2102 are arranged on the outer wall surface of the top of the telescopic core segment 211. The sliders 2110 slide in cooperation with the corresponding slide grooves 2102, thereby realizing the sliding connection relationship between the telescopic core segment 211 and the fixed sleeve segment 210.

[0027] In the preferred embodiment, two receiving grooves 2101 that are staggered with the slide groove 2102 are also provided on the inner wall surface of the fixed sleeve segment 210. The telescopic drive mechanism 212 includes two lifting screws 2120 that are rotatably arranged in the two receiving grooves 2101 respectively. The lifting screws 2120 are rotatably arranged in the receiving grooves 2101 through bearings arranged up and down. Such a design can avoid affecting the inner diameter of the fixed sleeve segment 210. The tops of the two lifting screws 2120 are both provided with driven bevel gears 2121, and the bottom of the fixed opening and closing mechanism 22 is provided with a lifting transmission mechanism that simultaneously drives the two lifting screws 2120 to rotate.

[0028] Furthermore, the lifting transmission mechanism includes a driving motor 2022 and a dual-output reducer 2023 arranged at the bottom of the fixed opening and closing mechanism 22, specifically arranged at the bottom of the lower plate 222, the output shaft of the driving motor 2022 is connected to the input shaft of the dual-output reducer 2023, and the two output ends of the dual-output reducer 2023 are both provided with a transmission rod 2024, and the other end of the transmission rod 2024 is provided with a transmission bevel gear 2025 meshing with the corresponding driven bevel gear 2121, and two internal thread blocks 2111 are arranged on the outer wall surface of the top of the telescopic core section 211, and the internal thread block 2111 is threadedly mounted on the outside of the corresponding lifting screw 2120.

[0029] With such a design, the two transmission rods 2024 and the transmission bevel gears 2025 thereon can be driven to rotate by the power of the driving motor 2022, and then the corresponding lifting screw 2120 can be driven to rotate by utilizing the meshing relationship with the driven bevel gear 2121, and then the threaded connection relationship with the internal thread block 2111 can be used to drive it and the telescopic core section 211 to be telescoped.

[0030] It should be noted that bearings respectively mounted on the outside of the two transmission rods 2024 are also suspended at the bottom of the lower plate 222 to improve the stability of the transmission rods 2024 during rotation, which is not shown in the figure.

[0031] Example 2 Further illustrate with reference to Example 1, Figure 3-6 , 8, and 10, in this embodiment, it also includes a pile foundation locking mechanism 23 arranged at the bottom of the telescopic core segment 211, which is used to further enhance the connection stability with the pile foundation 1.

[0032] Furthermore, the pile foundation locking mechanism 23 includes a bottom plate 230 arranged at the bottom end of the telescopic plug segment 211, the bottom plate 230 closes the opening at the bottom of the telescopic plug segment 211, and a plurality of first through grooves 231 are arranged on the bottom plate 230. In the present embodiment, the number of the first through grooves 231 is six, and a linear guide groove 232 is arranged at the bottom of each first through groove 231, and the outer end of the linear guide groove 232 is open, and a second through groove 234 corresponding to the through groove 231 is arranged at the top, and an L-shaped locking frame 235 is slidably arranged in the second through groove 234, and the L-shaped locking frame 235 is specifically an inverted L-shape, and limiting grooves 238 are arranged on the relative inner wall surfaces of the second through groove 234, and limiting blocks 236 are arranged on both sides of the top front end of the L-shaped locking frame 235, and the limiting blocks 236 are slidably matched with the matching limiting grooves 238, so that the L-shaped locking frame 235 can slide in the corresponding linear guide groove 232.

[0033] At the same time, a rotating bearing 239 is provided on the top of the bottom plate 230, a rotating disk 2310 is rotatably provided in the rotating bearing 239, a plurality of movable driving grooves 2311 corresponding to the first through groove 231 are provided on the rotating disk 2310, an inner tooth ring 2312 is provided at the center of the rotating disk 2310, specifically, an arc groove extending from the outer ring to the inner ring, a center hole is provided at the center of the rotating disk 2310, and the inner tooth ring 2312 is provided on the inner wall surface of the center hole A support seat 2313 located above the turntable 2310 is also provided inside the telescopic core section 211, and a second driving device 2314 is provided on the top of the support seat 2313. The output shaft of the second driving device 2314 passes through the support seat 2313 and is provided with a driving gear 2315. The driving gear 2315 is meshed with the inner gear ring 2312, so that the driving gear 2315 can drive the inner gear ring 2312 and the turntable 2310 to rotate through the drive of the second driving device 2314.

[0034] In addition, a second through rod 237 is provided on the top of the L-shaped locking frame 235, which passes through the corresponding second through groove 234, the first through groove 231 and the movable driving groove 2311. Through the connection relationship between the second through rod 237 and the movable driving groove 2311, and the connection relationship between the second through rod 237 and the movable driving groove 2311, as well as the connection relationship between the second through rod 237 and the linear guide groove 232, the L-shaped locking frame 235 can be moved outward or inward when the turntable 2310 is rotated forward and reversed. Therefore, when facing a hollow pile, the L-shaped locking frame 235 can be expanded outward so that its outer wall contacts the inner wall of the hollow pile, thereby achieving a clamping effect.

[0035] It should be noted that before the telescopic inserting core section 211 is inserted into the hollow pile, the L-shaped locking frame 235 needs to be moved inward to within the outer diameter range of the telescopic inserting core section 211 .

[0036] Furthermore, the number and position of the L-shaped locking frames 235 all correspond to the slide grooves 2102. When the telescopic core segment 211 is located in the fixed sleeve segment 210, the L-shaped locking frame 235 can be completely moved into the corresponding slide groove 2102. Therefore, when facing a solid pile, the L-shaped locking frame 235 can be moved into the corresponding slide groove 2102 before the solid pile is inserted into the fixed sleeve segment 210. After the solid pile is inserted into the fixed sleeve segment 210, the L-shaped locking frame 235 is moved inward to clamp and fix the solid pile.

[0037] Such a design can further improve the installation strength while appropriately reducing the requirement for the dimensional accuracy between the pile foundation docking portion 21 and the pile foundation 1 , and compensation is achieved through the L-shaped locking frame 235 .

[0038] Example 2 Further illustrate with reference to Examples 1 and 2, Figure 1-10 The present embodiment provides a method for using a water pile foundation lifting device, the method comprising: S1. According to the type of pile foundation 1, appropriately adjust the pile foundation docking portion 21 at the bottom of the mounting base 2; When the type of pile foundation 1 is a solid pile, the telescopic plug-in section 211 of the pile foundation docking portion 21 is retracted into the fixed plug-in section 210, and at the same time, a cavity that can be sleeved in the outer part of the pile foundation 1 is formed at the bottom of the fixed plug-in section 210, and then the fixed plug-in section 210 of the mounting base 2 is hoisted to align with the solid pile, so that it slowly falls on the pile foundation 1; When the pile foundation 1 is a hollow pile, the telescopic core segment 211 is extended, and at the same time, the pile foundation docking portion 21 has segments of different diameters to adapt to different hollow pile inner diameters. The pile foundation docking portion 21 of the mounting base 2 is aligned with the hollow pile by hoisting, so that it slowly falls on the pile foundation 3; S2, then hoisting the crane 3 onto the crane mounting portion 20 of the adjustment mounting base 2, and fixing it via the base of the crane mounting portion 20; S3. After the crane 3 is firmly installed on the pile foundation 3, normal operation can be carried out.

[0039] In addition, when the pile foundation 1 needs to be replaced, the above steps are carried out in reverse to remove it, and then the above steps are repeated on another pile foundation 1.

[0040] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An above-water pile foundation lifting device, characterized in that: The invention comprises a mounting base (2) which can be mounted on a pile foundation (1) and a crane (3) mounted on the mounting base (2); the mounting base (2) comprises a crane mounting portion (20) and a pile foundation docking portion (21) arranged below the crane mounting portion (20); a fixing opening and closing mechanism (22) for fixing the crane (3) is arranged on the crane mounting portion (20); the pile foundation docking portion (21) comprises a fixed plug-in segment (210) arranged at the bottom of the mounting base (2); a telescopic driving mechanism (212) and a telescopic core segment (211) are arranged in the fixed plug-in segment (210); the telescopic core segment (211) can be extended from or retracted into the bottom of the fixed plug-in segment (210) by the drive of the telescopic driving mechanism (212); and when the telescopic core segment (211) is completely retracted into the fixed plug-in segment (210), a cavity is formed at the bottom thereof which can be sleeved onto the outside of the pile foundation (1).

2. The above-water pile foundation lifting device according to claim 1, characterized in that: The bottom of the crane (3) is provided with a socket (301) which can be inserted into the crane mounting portion (20); The fixed opening and closing mechanism (22) comprises a clamping opening and closing mechanism arranged in the crane installation part (20) and an opening and closing driving mechanism arranged outside the crane installation part (20), and the opening and closing driving mechanism is used to drive the clamping opening and closing mechanism to clamp the socket (301).

3. The above-water pile foundation lifting device according to claim 2, characterized in that: The clamping opening and closing mechanism comprises an upper plate (220) and a lower plate (222) fixed inside the crane mounting part (20); a connecting shaft (221) is arranged between the upper plate (220) and the lower plate (222); a gear plate (223) is rotatably mounted on the outside of the connecting shaft (221); a plurality of clamping drive grooves (224) are arranged on the gear plate (223); a plurality of linear guide grooves (225) matching the clamping guide grooves (224) are arranged through the upper plate (220); a clamping movable seat (226) is movably installed in the linear guide groove (225); and a first transmission rod (227) extending into the corresponding clamping drive groove (224) is arranged at the bottom of the clamping movable seat (226); The opening and closing drive mechanism comprises a mounting ring seat (201) arranged outside the heavy machine mounting portion (20); a first drive device (229) is arranged on the mounting ring seat (201); an output shaft of the first drive device (229) passes through the mounting ring seat (201) and is provided with a transmission gear (2210); an opening (202) located at the transmission gear (2210) is also arranged on the wall surface of the heavy machine mounting portion (20); and the transmission gear (2210) passes through the opening (202) and meshes with the gear plate (223).

4. The above-water pile foundation lifting device according to claim 3 is characterized in that: An annular slot (302) is disposed on the outside of the plug-in seat (301), and an insert block (228) adapted to the annular slot (302) is disposed on the top of the clamping movable seat (226); Stiffening plates (203) are provided on both upper and lower sides of the mounting ring seat (201).

5. The above-water pile foundation lifting device according to claim 1, characterized in that: The fixed sleeve segment (210) is plugged into the bottom of the heavy machine mounting portion (20), and a plurality of slide grooves (2102) are arranged on its inner wall surface, and a plurality of sliders (2110) corresponding to the slide grooves (2102) are arranged on the outer wall surface of the top of the telescopic core segment (211), and the sliders (2110) are slidably matched with the corresponding slide grooves (2102).

6. The above-water pile foundation lifting device according to claim 5, characterized in that: Two receiving grooves (2101) intersecting with the slide groove (2102) are also arranged on the inner wall surface of the fixed plug-in segment (210), and the telescopic driving mechanism (212) comprises two lifting screws (2120) rotatably arranged in the two receiving grooves (2101), and the tops of the two lifting screws (2120) are both provided with driven bevel gears (2121), and the bottom of the fixed opening and closing mechanism (22) is provided with a lifting transmission mechanism for driving the two lifting screws (2120) to rotate simultaneously.

7. The above-water pile foundation lifting device according to claim 6, characterized in that: The lifting transmission mechanism comprises a driving motor (2022) and a dual-output reducer (2023) arranged at the bottom of the fixed opening and closing mechanism (22); the output shaft of the driving motor (2022) is connected to the input shaft of the dual-output reducer (2023); both output ends of the dual-output reducer (2023) are provided with a transmission rod (2024); the other end of the transmission rod (2024) is provided with a transmission bevel gear (2025) meshing with a corresponding driven bevel gear (2121); two internal thread blocks (2111) are provided on the outer wall surface of the top of the telescopic plug section (211); the internal thread blocks (2111) are threadedly sleeved on the outside of the corresponding lifting lead screw (2120).

8. The above-water pile foundation lifting device according to any one of claims 1 to 7, characterized in that: It also includes a pile foundation locking mechanism (23) arranged at the bottom of the telescopic insert section (211); The pile foundation locking mechanism (23) comprises a bottom plate (230) arranged at the bottom end of the telescopic plug section (211), the bottom plate (230) is provided with a plurality of first through grooves (231), the bottom of each first through groove (231) is provided with a linear guide groove (232), the outer end of the linear guide groove (232) is open, and the top is provided with a second through groove (234) corresponding to the through groove (231), an L-shaped locking frame (235) is slidably arranged in the second through groove (234), limiting grooves (238) are arranged on the relative inner wall surfaces of the second through groove (234), limiting blocks (236) are arranged on both sides of the front end of the top of the L-shaped locking frame (235), the limiting blocks (236) are slidably matched with the matching limiting grooves (238), and a rotating bearing (239) is arranged on the top of the bottom plate (230), and the rotating bearing (239) ) is rotatably provided with a turntable (2310), the turntable (2310) is provided with a plurality of movable drive slots (2311) corresponding to the first through slots (231), an inner gear ring (2312) is provided at the center of the turntable (2310), a support seat (2313) located above the turntable (2310) is further provided inside the telescopic plug section (211), a second drive device (2314) is provided at the top of the support seat (2313), an output shaft of the second drive device (2314) passes through the support seat (2313) and is provided with a drive gear (2315), the drive gear (2315) is meshed with the inner gear ring (2312), and a second through rod (237) is provided at the top of the L-shaped locking frame (235) and passes through the corresponding second through slots (234), the first through slots (231) and the movable drive slots (2311).

9. The above-water pile foundation lifting device according to claim 8, characterized in that: The number and position of the L-shaped locking frames (235) all correspond to the slide grooves (2102). When the telescopic plug core section (211) is located in the fixed plug sleeve section (210), the L-shaped locking frames (235) can be completely moved into the corresponding slide grooves (2102).

10. A method for using an above-water pile foundation lifting device according to any one of claims 1 to 9, characterized in that: The method includes: S1. According to the type of pile foundation (1), appropriately adjust the pile foundation docking portion (21) at the bottom of the mounting base (2); When the type of the pile foundation (1) is a solid pile, the telescopic plug-in section (211) of the pile foundation docking portion (21) is retracted into the fixed plug-in section (210), and at the same time, a cavity that can be sleeved on the outside of the pile foundation (1) is formed at the bottom of the fixed plug-in section (210), and then the fixed plug-in section (210) of the mounting base (2) is aligned with the solid pile through hoisting, so that it slowly falls onto the pile foundation (1); When the pile foundation (1) is a hollow pile, the telescopic core section (211) is extended, and at the same time, the pile foundation docking section (21) is adapted to different hollow pile inner diameters through sections of different diameters, and the pile foundation docking section (21) of the installation base (2) is aligned with the hollow pile through hoisting, so that it slowly falls onto the pile foundation (3); S2, then hoisting the crane (3) onto the crane mounting portion (20) of the adjustment mounting base (2), and fixing it via the base of the crane mounting portion (20); S3. After the crane (3) is firmly installed on the pile foundation (3), normal operation can be carried out.

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