A water piling platform

Abstract

The invention relates to the technical field of water platforms, and in particular to a water piling platform; during the initial drilling operation, it is not necessary to limit the hull, the structure is scientific and simple, and while ensuring the normal operation of the pile hole drilling operation, the overall volume of the hull is reduced, and the pile hole drilling efficiency is effectively improved; the platform comprises a hull, a pile hole drilling mechanism installed at the bow of the hull, and a steering propulsion mechanism installed at the stern of the hull, the pile hole drilling mechanism comprises a frame, a drill barrel, two guide members fixedly installed in the drill barrel, and two lifting drive assemblies for moving the two guide members up and down; the steering propulsion mechanism comprises a hydraulic rotary cylinder fixedly installed on the hull, a propeller propeller installed at the bottom output end of the hydraulic rotary cylinder, and a hydraulic pump station providing power for the hydraulic rotary cylinder; the lifting drive assembly comprises a mounting frame fixedly installed on the frame, two engaging drive members slidably installed on the mounting frame, and a threaded rod rotatably installed on the mounting frame.

Description

Technical Field

[0001] The invention relates to the technical field of water platforms, in particular to an water piling platform. Background Art

[0002] As we all know, pile-driving boats are engineering boats used for driving and pulling foundation piles for hydraulic structures. The boat type is a steel box-type structure; pile-driving boats can operate in coastal areas, rivers, and lakes at a certain depth.

[0003] For example, a Chinese invention patent discloses an offshore pile-driving ship (publication number CN117755436A), which includes: a pile-driving ship body, a lifting drive mechanism is fixedly installed at the four corners of the top of the pile-driving ship body, a lifting support mechanism is movably installed inside the lifting drive mechanism, a water pumping mechanism is fixedly installed on one side of the lifting drive mechanism, a water flow conveying mechanism is installed inside the lifting support mechanism, a mud flushing mechanism is arranged at the bottom of the lifting support mechanism, and a diversion support mechanism is fixedly installed on the surface of the mud flushing mechanism. The offshore pile-driving ship can generate a high-speed water flow through the water pumping mechanism during support, and use the water flow conveying mechanism to convey it to the mud flushing mechanism for discharge, and then the diversion support mechanism guides the silt downward to flush and clean it, so as to ensure that the relatively soft silt foundation is cleaned before support, so as to facilitate obtaining a relatively stable foundation as support, and ensure the stability of the pile-driving ship during pile driving.

[0004] However, when the inventor implemented this device, he found the following defects: the hull is firmly limited during the pile hole operation by means of the lifting and supporting mechanisms around the hull; the structure is complex, and at least four groups of positioning holes need to be drilled, which undoubtedly increases the difficulty of the drilling operation; in order to ensure the stability of the hull during the drilling operation, the hull often needs to be enlarged, resulting in an increase in the production cost of the equipment; the efficiency of the pile hole drilling operation needs to be further improved. Summary of the invention

[0005] Technical issues solved

[0006] In view of the deficiencies in the prior art, the present invention provides an above-water piling platform which does not require limiting the hull during the initial drilling operation, has a scientific and simple structure, ensures the normal progress of the pile hole drilling operation, reduces the overall volume of the hull, and effectively improves the pile hole drilling efficiency.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an above-water piling platform, comprising a hull, a pile hole drilling mechanism installed at the bow of the hull, and a steering propulsion mechanism installed at the stern of the hull, wherein the pile hole drilling mechanism comprises a frame, a drill barrel, two guide members fixedly installed in the drill barrel, and two lifting drive assemblies for moving the two guide members up and down; the steering propulsion mechanism comprises a hydraulic rotary cylinder fixedly installed on the hull, a propeller propeller installed at the bottom output end of the hydraulic rotary cylinder, and a hydraulic pump station for providing power for the hydraulic rotary cylinder; further, when performing the preliminary drilling operation of the pile hole, the propeller propeller is arranged perpendicular to the vertical center plane passing through the line between the bow and the stern of the hull; the guide member can be a guide column or a guide tube.

[0009] Preferably, the lifting drive assembly includes a mounting frame fixedly mounted on the frame, two engaging drive members slidably mounted on the mounting frame, and a threaded rod rotatably mounted on the mounting frame, the engaging drive member includes a slide, an engaging wheel rotatably mounted on the slide, and a first rotary driver fixedly mounted on the slide and providing power for the rotation of the engaging wheel, the threaded rod is threadedly connected to the slide; further, there are at least two groups of engaging wheels on the same slide, the first rotary driver provides power for the rotation of at least one group of engaging wheels, the first rotary driver is preferably a hydraulic motor, and an electric motor or other driver with an equivalent rotary driving effect may also be used; the engaging wheel fits with the outer wall of the guide member; the threads on the threaded rod at the contact points with the two slides are interlocked with each other; the threaded rod can be rotationally adjusted by a hand wheel or other driver with a rotary driving effect on the threaded rod.

[0010] Preferably, a deep hole drilling mechanism is installed on the frame, and the deep hole drilling mechanism includes a lifting seat slidably installed on the frame, a spiral drill rod rotatably installed on the lifting seat, a second rotary drive that provides power for the rotation of the spiral drill rod, and a lifting drive that provides power for the lifting seat to slide up and down; further, the first rotary drive is preferably a hydraulic motor, and a drive with an equivalent rotary drive effect such as an electric motor can also be used; the lifting drive is preferably a hydraulic cylinder, a fixed pulley and a wire rope, the fixed pulley is rotatably installed on the frame, the wire rope passes around the fixed pulley, the output end of the hydraulic cylinder is connected to the lifting seat through the wire rope, and other drives that can drive the lifting seat to slide up and down to provide power can also be used; the lifting seat is preferably a cast iron seat with a certain mass, and a counterweight block can also be detachably installed on the lifting seat, and the spiral drill rod and the second rotary drive can be detachably installed on the lifting seat by bolts.

[0011] Preferably, an internal support clamp is fixedly installed in the drill barrel, and the internal support clamp includes an internal support frame and multiple internal support parts. A straightening guide channel is provided in the middle portion of the internal support frame, and multiple internal support parts are evenly distributed around the circumference of the internal support frame. The internal support parts include an internal support arm, an articulated connecting rod and a telescopic cylinder hingedly installed on the inner support frame, one end of the articulated connecting rod is hinged to the internal support arm, and the other end of the articulated connecting rod is hinged to the inner support frame. The telescopic cylinder is hingedly installed on the inner support frame, and the output end of the telescopic cylinder is hinged to the rotating connection of the articulated connecting rod. A through opening allowing the inner support arm to pass through is provided on the drill barrel; further, the telescopic cylinder is preferably a hydraulic cylinder.

[0012] Preferably, a gear is fixedly mounted on the end of the inner support arm.

[0013] Preferably, the guide member extends into the bottom of the drill tube, and the guide member includes a plurality of pipe sections that are detachably connected end to end; further, the pipe sections are connected end to end via threads or detachable connectors.

[0014] Preferably, it also includes a plastic tube and a slag suction pump, wherein the slag suction pump is fixedly mounted on the hull, the input end of the plastic tube extends into the bottom of the drill tube through a pipe joint, and the output end of the plastic tube is connected to the input end of the slag suction pump.

[0015] Preferably, a cantilever crane is installed at the stern of the hull, and an anchor is installed on the cantilever crane.

[0016] Preferably, a steering paddle is fixedly mounted on the bottom of the propeller thruster.

[0017] Beneficial Effects

[0018] Compared with the prior art, the present invention provides an above-water pile driving platform, which has the following beneficial effects: the above-water pile driving platform drives two guide members and a drill barrel to move downward through a lifting drive assembly until the bottom of the drill barrel contacts a location to be piled, drives a propeller propeller to rotate through a hydraulic rotary cylinder until the propeller propeller is perpendicular to a vertical center plane passing through a line between a bow and a stern of a hull, starts the propeller propeller, and causes the propeller propeller to drive the hull to rotate around the center axis of the drill barrel, the drill barrel feeds downward during the rotation process, and performs a pile hole drilling operation on the seabed or riverbed, and the hull is used as a driving force lever for the drill barrel, so that the drill barrel can be pushed and adjusted with more effort, during which the hull and the drill barrel rotate synchronously, and the two tend to a relatively static state, which can improve the stability during the pile hole drilling process, and the hull does not need to be set too large to achieve stable drilling of the pile hole, and the hull does not need to be limited during the preliminary drilling operation, and the structure is scientific and simple, which ensures that the pile hole drilling operation is carried out normally while reducing the overall volume of the hull, and effectively improves the pile hole drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a front plan view structural schematic diagram of the present invention;

[0021] Figure 3 The present invention Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0022] Figure 4 The present invention Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0023] Figure 5 It is a right-side plan view structural schematic diagram of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner support clamp of the present invention;

[0025] Figure 7 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 8 The present invention Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0027] Fig. 9 The present invention Figure 3 A schematic diagram of the partially enlarged structure at C in the middle;

[0028] Fig.10 The present invention Figure 4 The schematic diagram of the local enlarged structure at D in the middle;

[0029] Fig.11 The present invention Figure 5 The schematic diagram of the local enlarged structure at E in the middle;

[0030] Markings in the attached drawings: 1. hull; 2. frame; 3. drill tube; 4. guide member; 5. hydraulic rotary cylinder; 6. propeller thruster; 7. hydraulic pump station; 8. mounting frame; 9. threaded rod; 10. slide; 11. engaging wheel; 12. first rotary drive; 13. lifting seat; 14. auger drill rod; 15. second rotary drive; 16. lifting drive; 17. inner support frame; 18. straightening guide channel; 19. inner support arm; 20. articulated connecting rod; 21. telescopic cylinder; 22. through port; 23. gear; 24. plastic pipe; 25. slag suction pump; 26. cantilever crane; 27. anchor; 28. steering paddle. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] As described in the background technology, an above-water piling platform realizes stable positioning of the hull during pile hole operation through lifting and supporting mechanisms around the hull; the structure is complex, and at least four groups of positioning holes need to be drilled, which undoubtedly increases the difficulty of the drilling operation; in order to ensure the stability of the hull during the drilling operation, the hull often needs to be enlarged, resulting in an increase in the production cost of the equipment; the efficiency of the pile hole drilling operation needs to be further improved.

[0035] In order to solve this technical problem, the present invention provides an above-water piling platform, which is applied to above-water piling operations.

[0036] Example 1, please refer to Figure 1-11 The present invention discloses an above-water pile driving platform, which specifically comprises: a hull 1, a pile hole drilling mechanism installed at the bow of the hull 1, and a steering propulsion mechanism installed at the stern of the hull 1, wherein the pile hole drilling mechanism comprises a frame 2, a drill tube 3, two guide members 4 fixedly installed in the drill tube 3, and two lifting drive assemblies for moving the two guide members 4 up and down; the steering propulsion mechanism comprises a hydraulic rotary cylinder 5 fixedly installed on the hull 1, a propeller propeller 6 installed at the bottom output end of the hydraulic rotary cylinder 5, and a hydraulic pump station 7 for providing power to the hydraulic rotary cylinder 5; further, when performing the initial drilling operation of the pile hole, the propeller propeller 6 is arranged perpendicular to the vertical center plane between the bow and the stern of the hull 1; the guide member 4 can be a guide column or a guide tube;

[0037] The lifting drive assembly includes a mounting frame 8 fixedly mounted on the frame 2, two engaging drive members slidably mounted on the mounting frame 8, and a threaded rod 9 rotatably mounted on the mounting frame 8. The engaging drive member includes a slide 10, an engaging wheel 11 rotatably mounted on the slide 10, and a first rotary driver 12 fixedly mounted on the slide 10 and providing power for the rotation of the engaging wheel 11. The threaded rod 9 is threadedly connected to the slide 10; further, there are at least two groups of engaging wheels 11 on the same slide 10, and the first rotary driver 12 provides power for the rotation of at least one group of engaging wheels 11. The first rotary driver 12 is preferably a hydraulic motor, which is powered by a hydraulic pump station 7, and a driver such as an electric motor with an equivalent rotational drive effect can also be used; the engaging wheel 11 fits with the outer wall of the guide member 4; the threads on the threaded rod 9 at the contact points with the two slides 10 are interlocked with each other; the threaded rod 9 can be rotationally adjusted by a hand wheel or other driver having a rotational drive effect on the threaded rod 9.

[0038] By rotating the threaded rod 9, the two slides 10 are brought closer to each other until the two corresponding engagement wheels 11 tightly engage the guide member 4. By starting the first rotary driver 12, the guide member 4 and the drill tube 3 can be driven to move up and down. When the pile hole drilling is completed, the guide member 4 can be detached from the lifting drive assembly to facilitate the installation of the prefabricated pile into the formed pile hole.

[0039] The above-water pile driving platform provided by the present invention drives two guide members 4 and the drill tube 3 to move downward through the lifting drive assembly until the bottom of the drill tube 3 contacts the place to be piled, and drives the propeller propeller 6 to rotate through the hydraulic rotary cylinder 5 until the propeller propeller 6 is perpendicular to the vertical center plane of the line between the bow and the stern of the hull 1, and starts the propeller propeller 6, so that the propeller propeller 6 drives the hull 1 to rotate around the central axis of the drill tube 3, and the drill tube 3 is fed downward during the rotation process to perform pile hole drilling operations on the seabed or riverbed. The hull 1 is used as a driving force lever of the drill tube 3, and the drill tube 3 can be pushed and adjusted more labor-savingly. During this process, the hull 1 and the drill tube 3 rotate synchronously, and the two tend to a relatively static state, which can improve the stability during the pile hole drilling process. The hull 1 does not need to be set too large to achieve stable drilling of the pile hole. There is no need to limit the hull 1 during the preliminary drilling operation. The structure is scientific and simple, and while ensuring the normal operation of the pile hole drilling operation, the overall volume of the hull 1 is reduced, and the pile hole drilling efficiency is effectively improved.

[0040] It should be noted that the technical solution of the above embodiment is suitable for pile hole construction in a rock layer riverbed with a large hole diameter and a small depth (or other geological riverbeds with relatively hard texture).

[0041] Embodiment 2 further optimizes the above-water piling platform provided in Embodiment 1. Specifically, Figure 4As shown, a deep hole drilling mechanism is installed on the frame 2, and the deep hole drilling mechanism includes a lifting seat 13 slidably installed on the frame 2, a spiral drill rod 14 rotatably installed on the lifting seat 13, a second rotary driver 15 providing power for the rotation of the spiral drill rod 14, and a lifting driver 16 providing power for the lifting seat 13 to slide up and down; further, the first rotary driver 12 is preferably a hydraulic motor, and a driver with an equivalent rotary drive effect such as an electric motor can also be used; the lifting driver 16 is preferably a hydraulic cylinder, a fixed pulley and a wire rope, the fixed pulley is rotatably installed on the frame 2, the wire rope passes around the fixed pulley, the output end of the hydraulic cylinder is connected to the lifting seat 13 through the wire rope, and other drivers that can drive the lifting seat 13 to slide up and down to provide power can also be used; the lifting seat 13 is preferably a solid cast iron seat with a certain mass, and a counterweight block can also be detachably installed on the lifting seat 13, and the spiral drill rod 14 and the second rotary driver 15 can be detachably installed on the lifting seat 13 by bolts, etc.;

[0042] An internal support clamp is fixedly installed in the drill barrel 3, and the internal support clamp includes an internal support frame 17 and multiple internal support members. A straightening guide channel 18 is provided in the middle of the internal support frame 17, and multiple internal support members are evenly distributed around the internal support frame 17. The internal support members include an internal support arm 19, an articulated connecting rod 20 and a telescopic cylinder 21 hingedly installed on the internal support frame 17. One end of the articulated connecting rod 20 is hinged to the internal support arm 19, and the other end of the articulated connecting rod 20 is hinged to the internal support frame 17. The telescopic cylinder 21 is hingedly installed on the internal support frame 17, and the output end of the telescopic cylinder 21 is hinged to the rotating connection of the articulated connecting rod 20. A through hole 22 is provided on the drill barrel 3 to allow the internal support arm 19 to pass through; further, the telescopic cylinder 21 is preferably a hydraulic cylinder; the straightening guide channel 18 is consistent with the shape of the auger rod 14; the straightening guide channel 18 can have a good straightening effect on the auger rod 14, so that the auger rod 14 is in a vertical state during operation.

[0043] The above-water pile driving platform provided in this embodiment starts the second rotary driver 15 to rotate the auger rod 14, and the lifting driver 16 drives the lifting seat 13 to move downward, so that the auger rod 14 performs a drilling operation on a pile hole with a small borehole diameter and a large depth; after the pile hole is drilled, the prefabricated pile can be inserted into the pile hole in a vertical state, at which time the auger rod 14 is removed, and the prefabricated pile is driven into the pile hole by the impact force of the lifting seat 13 moving downward; after the drill tube 3 reaches the drilling depth, the output end of the telescopic cylinder 21 is extended, and the hinged connection The rod 20 props up the inner support arm 19 until the end of the inner support arm 19 is in close contact with the inner wall of the pile hole, so that the drill tube 3 is fixed in the formed pile hole. At this time, the hull 1 is in a stationary state. During the operation of the spiral drill rod 14, under the action of the inner support clamp, the drill tube 3 and the hull 1 can be effectively prevented from moving, thereby ensuring the stability of the spiral drill rod 14 during operation, so as to ensure the dimensional accuracy of the formed pile hole; the precast pile enters the pile hole in a vertical state after being straightened by the straightening guide channel 18, which plays a positive role in the verticality of the hammering of the precast pile.

[0044] Specifically, a gear wheel 23 is fixedly installed at the end of the inner support arm 19; the gear wheel 23 can increase the friction between the inner support arm 19 and the formed pile hole to improve the clamping stability between the inner support clamp and the formed pile hole; during the operation of the drill tube 3, the inner support arm 19 can be propped up to allow the gear wheel 23 to cut an annular groove on the inner wall of the pile hole, and the formed annular groove can limit the gear wheel 23 to prevent the drill tube 3 from moving up and down along the formed pile hole; further ensuring the stability of the drill tube 3, providing protection for the subsequent precise operation of the spiral drill rod 14.

[0045] Specifically, the guide member 4 extends into the bottom of the drill tube 3, and the guide member 4 includes a plurality of pipe sections that are detachably connected end to end; further, the pipe sections are connected end to end by threads or detachable connectors; the number of pipe sections can be adaptively adjusted according to the drilling depth requirement of the pile hole, thereby adaptively adjusting the drilling depth of the drill tube 3.

[0046] Specifically, it also includes a plastic tube 24 and a slag suction pump 25. The slag suction pump 25 is fixedly installed on the hull 1. The input end of the plastic tube 24 extends into the bottom of the drill barrel 3 through a pipe joint, and the output end of the plastic tube 24 is connected to the input end of the slag suction pump 25. The debris generated during the operation of the drill barrel 3 and the spiral drill rod 14 enters the slag suction pump 25 through the plastic tube 24, and the debris is sucked out by the slag suction pump 25 to reduce the amount of debris around the drill barrel 3 and the spiral drill rod 14, reduce the rotational resistance of the drill barrel 3 and the spiral drill rod 14, and improve the drilling efficiency of the pile hole.

[0047] Specifically, a cantilever crane 26 is installed at the stern of the hull 1, and an anchor 27 is installed on the cantilever crane 26; the cantilever crane 26 can be used to hoist the precast piles onto the hull 1; when the drill tube 3 is drilled into place, the boom of the cantilever crane 26 is extended, and the anchor 27 sinks to the bottom of the water, and then the cantilever crane 26 is retracted until the anchor 27 is completely anchored to the bottom of the water. Under the anchoring action of the anchor 27, the stern of the hull 1 can be prevented from rotating around the central axis of the drill tube 3, further improving the stability of the hull 1, and providing protection for the subsequent pile hole depth drilling operation and precast pile driving operation.

[0048] Specifically, a steering paddle 28 is fixedly installed at the bottom of the propeller propeller 6; the steering paddle 28 rotates synchronously during the rotation of the propeller propeller 6, so as to more accurately control and adjust the travel direction of the hull 1.

[0049] The use process of the above-water pile driving platform provided by the present invention is as follows: the hull 1 is moved to the place where the pile is to be driven, and the two guide members 4 and the drill tube 3 are driven downward by the lifting drive assembly until the bottom of the drill tube 3 contacts the place where the pile is to be driven, and the propeller propeller 6 is driven to rotate by the hydraulic rotary cylinder 5 until the propeller propeller 6 is perpendicular to the vertical center plane of the line between the bow and the stern of the hull 1, and the propeller propeller 6 is started to drive the hull 1 to rotate around the central axis of the drill tube 3. The drill tube 3 is fed downward during the rotation process to perform pile hole drilling operations on the seabed or riverbed. When the drill After the tube 3 is drilled into place, if the pile hole needs to be further deepened, the drill tube 3 can be fixed by the inner support clamp, and the stern of the hull 1 can be fixed and limited by the cantilever crane 26 and the anchor 27. By starting the second rotary driver 15, the auger rod 14 is rotated, and the lifting driver 16 drives the lifting seat 13 to move downward, so that the auger rod 14 can drill the pile hole with a small hole diameter and a large depth; after the pile hole is drilled, the prefabricated pile can be inserted into the pile hole in a vertical state. At this time, the auger rod 14 is removed, and the prefabricated pile is driven into the pile hole by the impact force of the lifting seat 13 moving downward.

[0050] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. An above-water piling platform, characterized in that: It comprises a hull (1), a pile hole drilling mechanism installed at the bow of the hull (1), and a steering propulsion mechanism installed at the stern of the hull (1); The pile hole drilling mechanism comprises a frame (2), a drill tube (3), two guide members (4) fixedly installed in the drill tube (3), and two lifting drive assemblies for moving the two guide members (4) up and down; the steering propulsion mechanism comprises a hydraulic rotary cylinder (5) fixedly installed on the hull (1), a propeller propeller (6) installed at the bottom output end of the hydraulic rotary cylinder (5), and a hydraulic pump station (7) for providing power to the hydraulic rotary cylinder (5); The lifting drive assembly comprises a mounting frame (8) fixedly mounted on the frame (2), two engaging drive members slidably mounted on the mounting frame (8), and a threaded rod (9) rotatably mounted on the mounting frame (8); the engaging drive member comprises a slide frame (10), an engaging wheel (11) rotatably mounted on the slide frame (10), and a first rotary driver (12) fixedly mounted on the slide frame (10) and providing power for the engagement wheel (11) to rotate; the threaded rod (9) is threadedly connected to the slide frame (10); A deep hole drilling mechanism is installed on the frame (2), and the deep hole drilling mechanism comprises a lifting seat (13) slidably installed on the frame (2) up and down, a spiral drill rod (14) rotatably installed on the lifting seat (13), a second rotary driver (15) providing power for the rotation of the spiral drill rod (14), and a lifting driver (16) providing power for the lifting seat (13) to slide up and down; An internal support clamp is fixedly installed in the drill tube (3), and the internal support clamp includes an internal support frame (17) and a plurality of internal support members. A straightening guide channel (18) is provided in the middle of the internal support frame (17), and the plurality of internal support members are evenly distributed around the inner support frame (17). The internal support members include an internal support arm (19) hingedly installed on the inner support frame (17), an articulated connecting rod (20) and a telescopic cylinder (21). One end of the articulated connecting rod (20) is hingedly connected to the internal support arm (19), and the other end of the articulated connecting rod (20) is hingedly connected to the inner support frame (17). The telescopic cylinder (21) is hingedly installed on the inner support frame (17), and the output end of the telescopic cylinder (21) is hingedly connected to the rotating connection of the articulated connecting rod (20). The drill tube (3) is provided with a through hole (22) for allowing the inner support arm (19) to pass through.

2. The above-water piling platform according to claim 1, characterized in that: A gear (23) is fixedly mounted on the end of the inner support arm (19).

3. The above-water piling platform according to claim 1, characterized in that: The guide member (4) extends into the bottom of the drill tube (3), and the guide member (4) comprises a plurality of pipe sections which are detachably connected end to end.

4. The above-water piling platform according to claim 3, characterized in that: It also comprises a plastic tube (24) and a slag suction pump (25), wherein the slag suction pump (25) is fixedly mounted on the hull (1), the input end of the plastic tube (24) extends into the bottom of the drill tube (3) through a pipe joint, and the output end of the plastic tube (24) is connected to the input end of the slag suction pump (25).

5. The above-water piling platform according to claim 1, characterized in that: A cantilever crane (26) is installed at the stern of the hull (1), and an anchor (27) is installed on the cantilever crane (26).

6. The above-water piling platform according to claim 1, characterized in that: A steering paddle (28) is fixedly mounted on the bottom of the propeller thruster (6).

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