Overwater movable multifunctional ship

By utilizing the hydraulic positioning pile system of a mobile multi-functional vessel on water, a combination structure of pressure plate, piston block, and anchor claw is used to achieve multi-angle deployment and three-dimensional anchoring of the anchor claw. This solves the problem of insufficient anchoring force of hydraulic positioning piles in complex underwater geological conditions and rapid current environments, ensuring the stability of the vessel's position and the safety of construction.

CN121799550APending Publication Date: 2026-04-07HUNAN ZHONGYUAN AVIATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-20
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The hydraulic positioning piles of existing mobile multi-functional vessels have insufficient anchoring force in complex underwater geological conditions and rapid currents, leading to the problem of easy vessel drift.

Method used

A multi-functional, mobile vessel designed for water use employs a hydraulic positioning pile system. After the pile is inserted into the soil, a combination of pressure plate, piston block, push block, and anchor claws enables the anchor claws to unfold at multiple angles and achieve three-dimensional anchoring, thereby enhancing the anchoring force. Combined with a water flow sensing mechanism, the unfolding angle of the anchor claws is adjusted to form a three-dimensional anchoring network, overcoming the internal shear force and mechanical interlocking force of the soil.

Benefits of technology

It can obtain stable anchoring force under any geological conditions, ensuring accurate ship positioning and avoiding instability caused by soft or hard seabed, thus improving the safety and efficiency of construction.

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Abstract

The invention relates to the technical field of water equipment, in particular to a water movable multifunctional ship which comprises a ship body and a hydraulic gauge pile installed on the ship body, the hydraulic gauge pile comprises a pile body used for being inserted into a soil body, and a pressing plate located above a pile tip of the pile body is installed on the surface of the pile body in a sliding mode. After the pile body is inserted into a soil body and touches the bottom, the pressing plate slides upwards along the surface of the pile body under the counter-acting force of the soil body. After the pile body is inserted into a riverbed and the pressing plate touches the bottom, the pile body slides upwards under the counter-acting force, the wedge-shaped pushing block is driven by the connecting rod and the piston block to stretch out, the anchor flukes are pushed to penetrate into the soil body downwards, and foundation anchoring is achieved. In addition, after the ship body is fixed, water flow impacts the baffle, and the sliding pipe is pushed to move upwards through the wedge-shaped effect of the lifting block and the cross rod; furthermore, the unfolding angle of the anchor flukes is further enlarged through the connecting rods, and it is guaranteed that the most basic anchoring force can be obtained under any geological condition.
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Description

Technical Field

[0001] This invention relates to the field of watercraft technology, specifically to a mobile multi-functional boat. Background Technology

[0002] When mobile multi-functional vessels (such as dredgers, floating crane vessels, and piling vessels) are engaged in water construction and operations, their primary technical requirement is to maintain a precise position under environmental interference such as wind, waves, and currents. To achieve this goal, these vessels are generally equipped with hydraulic positioning pile systems. The core function of this system is to vertically insert a huge pile from the hull into the bottom of the water and use the interaction force between the pile and the bottom soil to anchor the vessel in the working position, thereby replacing the traditional anchoring system and achieving rapid and accurate positioning.

[0003] However, the hydraulic positioning piles of existing mobile multi-functional boats are too dependent on the underwater soil conditions. In soft, silty riverbeds, although the anchor claws can extend, they are difficult to obtain sufficient gripping force and are prone to failure due to hull swaying or water erosion. This causes the pile and the anchor claws to slip in the soft mud, resulting in the boat drifting. Conversely, on hard or uneven bottoms (such as hard clay or reefs), the anchor claws may not be able to penetrate effectively or can only obtain single-point, unstable support, which also affects the positioning accuracy and may even be damaged due to stress concentration.

[0004] Therefore, a mobile multi-functional boat is proposed to solve the problems mentioned above. Summary of the Invention

[0005] Technical problems to be solved To address the aforementioned shortcomings of existing technologies, this invention provides a mobile multi-functional boat that can solve the problems of insufficient anchoring force and easy drifting of existing hydraulic positioning piles in complex underwater geological and rapid current environments.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: This invention provides a mobile multi-functional vessel that can quickly and easily switch between different equipment, such as excavators, drilling rigs, and cranes, according to the needs of water infrastructure projects. The multi-functional vessel includes a hull and hydraulic positioning piles installed on the hull. The hydraulic positioning piles include a pile body for insertion into the soil. A pressure plate is slidably installed on the surface of the pile body above its tip. After the pile body is inserted into the soil and touches the bottom, the pressure plate slides upward along the surface of the pile body under the reaction force of the soil. The pile body is provided with an inner cavity, and a piston block is slidably arranged in the inner cavity. The piston block is connected to the pressure plate so that it is driven to move upward when sliding on the pressure plate. A pressure chamber is formed in the inner cavity above the piston block. The side wall of the pile body is provided with an opening that communicates with the pressure chamber. A push block is slidably installed at the opening. The push block is configured to extend outward after the medium in the pressure chamber is squeezed by the piston block. A sliding platform is slidably installed on the surface of the pile. Several anchor claws are rotatably connected to the sliding platform. The push block cooperates with the sliding platform so that when the push block extends outward, it drives the sliding platform to slide downward along the surface of the pile with the anchor claws, and causes the anchor claws to unfold outward.

[0007] Furthermore, a fixed tube is connected to the upper surface of the pressure plate, and a sliding tube is slidably sleeved on the surface of the fixed tube. The sliding tube and the slide table are connected by a connecting rod. When the connecting rod slides down the slide table and slides up the sliding tube, it adjusts the unfolding angle of the anchor claw.

[0008] Furthermore, the surface of the pressure plate is also provided with a water flow sensing mechanism for sensing the impact force of the water flow, and is connected to the slide tube to drive the slide tube to slide upward along the surface of the fixed tube under the action of the water flow impact force, thereby increasing the unfolding angle of the anchor claw through the connecting rod.

[0009] Furthermore, the water flow sensing mechanism also includes a sleeve disposed on the surface of the pressure plate and a push rod that moves elastically within the sleeve. A baffle is provided at the end of the push rod and facing upstream of the water flow. A lifting block is provided on the push rod, and a crossbar is connected to the slide tube. When the push rod moves under the thrust of the water flow, the lifting block acts on the crossbar to lift the slide tube.

[0010] Furthermore, a protruding plate is fixed to the surface of the pile body, a first spring is provided between the protruding plate and the slide table, and a sealing cover surrounding the first spring is also provided between the protruding plate and the slide table.

[0011] Furthermore, the piston block is connected to the pressure plate via a connecting rod, and the surface of the pile body is provided with a sliding groove for the connecting rod to slide.

[0012] Furthermore, drainage holes are provided on the surface of the anchor claw.

[0013] Furthermore, the anchor claw is provided with an installation groove corresponding to the position of the drainage hole. A first claw spike is rotatably connected in the installation groove via a torsion spring shaft. The first claw spike is configured to seal the lower opening of the drainage hole under normal conditions and to expand outward against the torque of the torsion spring shaft under the pressure of the soil-water mixture.

[0014] Furthermore, a first gear is connected to the torsion spring shaft, and a second gear that meshes with the first gear is rotatably connected in the mounting groove. A second claw is connected to the second gear. The unfolding movement of the first claw is driven by the meshing transmission between the first gear and the second gear, which drives the second claw to unfold synchronously.

[0015] Furthermore, the push block is a wedge-shaped block with an inclined surface on its outer surface, and the inner surface of the slide table abuts against the inclined surface.

[0016] Beneficial effects The technical solution provided by this invention has the following advantages compared with the prior art: In this invention, when the pile is inserted into the riverbed, the pressure plate slides upward under the reaction force after touching the bottom. The wedge-shaped pusher is driven to extend through the connecting rod and piston block, pushing the anchor claw downward into the soil to achieve foundation anchoring. After the hull is fixed, the water flow impacts the baffle, and the wedge-shaped action of the lifting block and the crossbar pushes the sliding tube upward. Then, the connecting rod further increases the unfolding angle of the anchor claw, ensuring that the most basic anchoring force can be obtained under any geological conditions.

[0017] Furthermore, by opening drainage holes on the surface of the anchor claw, soil-water mixtures are allowed to pass through. In the mounting groove on the side of the drainage hole, there is a first claw connected by a torsion spring shaft. The first gear is coaxial with the torsion spring shaft and meshes with the second gear to drive the second claw. The second gear is equipped with the second claw. When the soil-water pressure pushes the first claw to unfold, the second claw unfolds synchronously in the opposite direction through the gear set linkage. The porous structure generates a soil anchoring effect, and the linked claws form a three-dimensional anchoring network. The pull-out resistance mechanism is upgraded from relying on surface friction to overcoming the internal shear force of the soil and the mechanical biting force of the claws. The anchoring capacity is increased by orders of magnitude. Moreover, the extent of claw unfolding is triggered by the actual soil pressure. It can fully unfold in extremely soft soil to obtain the maximum gripping force, and in hard soil, it serves as a supplementary safety measure, realizing intelligent adjustment of the anchoring force. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the multi-functional ship structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the pile structure in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the pile in an embodiment of the present invention; Figure 4 This is a schematic diagram of the external structure of the pile in an embodiment of the present invention; Figure 5 This is a schematic diagram of the anchor claw structure in an embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of the internal structure of the anchor claw in an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the internal structure of the anchor claw in an embodiment of the present invention.

[0020] The labels in the diagram represent: 1. Hull; 2. Hydraulic positioning pile; 3. Pile body; 301. Inner cavity; 302. Piston block; 303. Pressure chamber; 304. Push block; 305. Connecting rod; 306. Slide groove; 307. Protruding plate; 308. First spring; 309. Sealing cover; 4. Pressure plate; 5. Slide table; 6. Anchor claw; 601. Drainage hole; 602. Mounting groove; 603. Torsion spring shaft; 604. First claw spike; 605. First gear; 606. Second gear; 607. Second claw spike; 7. Fixing tube; 8. Slide tube; 9. Connecting rod; 10. Sleeve; 11. Second spring; 12. Push rod; 13. Baffle; 14. Lifting block; 15. Crossbar. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example: Please refer to the appendix. Figure 1-7 This solution proposes a mobile multi-functional vessel for waterborne operations. The core advantage of this vessel is that it can quickly and easily switch between different equipment, such as excavators, drilling rigs, and cranes, according to the needs of waterborne infrastructure projects.

[0027] Through standardized interfaces and integrated support systems, various land-based engineering equipment can be quickly adapted and integrated at ports or designated anchorages to meet rapidly changing construction needs, enabling immediate switching of functional roles. For example, in waterway dredging and waterway improvement, it can be equipped with long-arm excavators and grab dredgers for river dredging, lake management, and port maintenance dredging. In bridge and wharf construction, it can be equipped with hydraulic pile drivers for pile foundation construction; and large crawler cranes for the installation of precast bridge piers and steel box girders. This allows one multi-functional vessel to replace multiple traditional single-function engineering vessels, significantly reducing vessel purchase, maintenance, and labor costs. Furthermore, the rapid functional conversion capability avoids delays caused by waiting for vessels with specific functions, achieving seamless integration of the construction process.

[0028] Multiple hydraulic positioning piles 2 are installed on the hull 1 to achieve rapid, accurate and stable positioning of the hull 1, which is a prerequisite for the safe and efficient operation of the mobile multi-functional vessel.

[0029] Specifically, the hydraulic positioning pile 2 is equipped with a pile body 3 for insertion into the soil. When the hull 1 moves to the designated working position, under the action of hydraulic pressure, the pile body 3 slides vertically down from the hydraulic positioning pile 2 and inserts into the soil below. The hull 1 is fixed by its own weight pressing down and the surface friction and end bearing capacity generated after the pile tip penetrates the soil.

[0030] However, in soft geological conditions, such as silt, the soil provides little friction and high compressibility, making it easy for pile 3 to sink continuously or slip laterally. Especially in turbulent water flow, the water flow generates a huge horizontal thrust on the hull 1, which is borne entirely by a single pile. The soft soil has a weak lateral constraint on the pile, which can easily lead to pile tilting and ship drift. This causes the hull 1 to be unable to maintain a precise static position, resulting in swaying and drifting, which seriously affects the quality of operations such as precise excavation, hoisting, and measurement.

[0031] The difference is that a pressure plate 4 is slidably installed on the surface of the pile body 3 above the pile tip. When the pile body 3 is inserted into the soil to a certain depth, the pressure plate 4 will also abut against the soil and slide upward along the surface of the pile body 3 under the action of reaction force. After the pile body 3 is inserted to a certain depth, the pressure plate 4 will contact the ground and start the entire anchoring process under the reaction force of the soil. This ensures that the system will only be activated after the pile body 3 is in place, avoiding malfunction.

[0032] The pile body 3 has an inner cavity 301, and a piston block 302 is slidably installed inside the inner cavity 301. A pressure chamber 303 is located above the piston block 302 inside the inner cavity 301. The pressure chamber 303 is filled with a medium. At the same time, the surface of the pile body 3 has a sliding groove 306 that communicates with the inner cavity 301. A push block 304 is connected to the lower end of the piston block 302. The other end of the push block 304 passes through the sliding groove 306 and is connected to the pressure plate 4.

[0033] When the pressure plate 4 slides upward on the surface of the pile body 3, it will push the piston block 302 to slide upward in the inner cavity 301 through the connecting rod 305, thereby causing the piston block 302 to squeeze the medium in the pressure chamber 303.

[0034] The surface of the pile body 3 is also provided with an opening that is connected to the pressure chamber 303, and a pusher block 304 is slidably installed in the opening.

[0035] When the medium in the pressure chamber 303 is squeezed, the pusher block 304 will slide horizontally outward from the opening under the pressure.

[0036] The surface of the pile body 3 is provided with a protruding plate 307, and a slide 5 is connected to the protruding plate 307 by a first spring 308. The slide 5 is slidably installed on the surface of the pile body 3, and multiple sets of anchor claws 6 distributed in an equidistant circle are rotatably connected to the slide 5. When the slide 5 is not affected by external force, it will be lifted upward under the elastic force of the first spring 308, thereby causing the slide 5 to drive the anchor claws 6 away from the pile tip position of the pile body 3.

[0037] The push block 304 is trapezoidal in shape and its outer surface is inclined. The inner surface of the slide 5 abuts against the outer inclined surface of the push block 304. When the push block 304 slides outward under the pressure inside the piston block 302, it will push the slide 5 to slide vertically downward on the surface of the pile body 3 and squeeze the first spring 308, further causing the anchor claw 6 to slide downward on the surface of the pile body 3, so that the anchor claw 6 can be inserted into the outside of the fixed point below the pile body 3. This avoids the pile tip of the pile body 3 from hitting the slope or reef crevices on uneven water bottoms, forming an unstable fulcrum, which is easy to slip off with a little external force.

[0038] By pushing the anchor claw 6 to the outside of the fixed point below the pile body 3, the lever arm of the anchoring system is significantly increased. When the hull 1 is subjected to horizontal forces such as wind, waves, and water flow, the resulting overturning moment needs to be balanced by the soil reaction force at the anchor claw 6 position. The farther the anchor claw 6 is from the pile tip, the longer the lever arm, and the smaller the soil reaction force required to balance the same moment. The system is naturally more stable, which directly solves the problem of unstable single-point support formed by the pile tip on slopes or reefs.

[0039] A sealing cover 309 is also connected between the slide 5 and the convex plate 307, and the sealing cover 309 is wrapped around the outside of the first spring 308.

[0040] The working environment for hydraulic positioning piles 2 is extremely harsh. When the pile body 3 is inserted into the bottom of the water, especially in soft silt or sandy riverbeds, the muddy water rich in abrasive particles will try to penetrate every crevice. Without the sealing cover 309, this mud and sand will directly enter the sliding track between the slide table 5 and the surface of the pile body 3, and accumulate around the first spring 308. When the first spring 308 is compressed and extended, the mud and sand will act as an abrasive, aggravating wear, which may eventually lead to the slide table 5 being obstructed, the spring being stuck and unable to reset, or even the entire anchor claw unfolding mechanism failing.

[0041] It should be noted that a fixing pipe 7 is fixedly connected to the upper surface of the pressure plate 4. The fixing pipe 7 covers the outer surface of the sliding groove 306 and is used to seal the inner cavity 301. The surface of the fixing pipe 7 is slidably installed with the sliding pipe 8. When the pressure plate 4 slides upward on the surface of the pile body 3, it will simultaneously push the fixing pipe 7 and the sliding pipe 8 to slide upward on the surface of the pile body 3. The upper end of the sliding pipe 8 is rotatably connected to several sets of equidistantly distributed circumferential connecting rods 9. The number of connecting rods 9 is matched with the number of anchor claws 6, and the upper end of each set of connecting rods 9 is rotatably connected to the corresponding anchor claw 6. Then, when the pressure plate 4 slides along the surface of the pile body 3 and the sliding table 5 slides down the surface of the pile body 3, the connecting rods 9 will push the anchor claws 6 to rotate outward on the sliding table 5, so that the multiple sets of anchor claws 6 installed on the sliding table 5 will simultaneously unfold outward. When the anchor claws 6 are not unfolded, the pile body 3 is mainly fixed by the friction between the pile side and the soil and the end bearing force of the pile end. In soft geological conditions, both of these forces are very limited. When the multiple sets of anchor claws 6 installed on the sliding platform 5 deploy simultaneously, an inverted cone-shaped anchoring zone is formed on the outer side of the pile 3. That is, as the anchor claws 6 extend downwards and to both sides, they penetrate deeper into the undisturbed soil around the pile. At this point, any force attempting to pull the hull 1 away from its original position, such as water flow or waves, needs to overcome the shear force of a large area of ​​soil above the anchor claws 6. This is equivalent to installing several barbs on the pile 3, distributing the force to a larger volume of soil.

[0042] In response to the horizontal thrust caused by water flow and waves, the deployed anchor claws 6 provide resistance far exceeding the friction of the pile body 3. At the same time, in response to the up-and-down movement of the hull 1 caused by waves, the anchor claws 6 can effectively prevent the positioning pile from being pulled out of the riverbed.

[0043] It is worth noting that the surface of the pressure plate 4 is also connected to the sleeve 10, and the sleeve 10 is slidably installed with the push rod 12 through the second spring 11. The other end of the push rod 12 is connected to the baffle 13.

[0044] After the hull 1 moves to the working position, the baffle 13 installed on the adjusting plate 4 is oriented towards the upstream position of the water flow. After the pile 3 is inserted into the soil and the anchor claw 6 is deployed to achieve fixation, its anchoring force is still insufficient under the impact of the rapid current. The pile 3 may be loosened or even pulled out, causing the hull position to drift. By oriented the baffle 13 towards the impact direction of the water flow, the baffle 13 pushes the push rod 12 to slide in the sleeve 10 under the pressure of the water flow, and squeezes the second spring 11.

[0045] The surface of the push rod 12 is also connected to a lifting block 14, which is triangular in shape with its inclined surface facing the slide tube 8. The surface of the slide tube 8 is connected to a crossbar 15, which is located in the sliding path of the lifting block 14. When the baffle 13 is displaced under the impact of the water flow, the lifting block 14 will slide towards the crossbar 15, further causing the crossbar 15 to abut against the inclined surface of the lifting block 14. As the sliding distance of the lifting block 14 increases, it will push the slide tube 8 to slide upward on the surface of the fixed tube 7, further causing the connecting rod 9 to apply a secondary unfolding force to the anchor claw 6, thereby increasing the unfolding angle of the anchor claw 6. In the case of rapid water flow but hard soil and difficulty in penetrating the pile body 3, the power provided by the water flow can be directly converted into greater downward pressure and unfolding force through the connecting rod 9. A larger unfolding angle means that a larger area of ​​soil can be disturbed and compressed, forming a more effective inverted cone-shaped anchoring zone and maximizing the anchoring force.

[0046] Furthermore, the greater the water flow, the greater the tension on the hull 1, and the greater the water pressure on the baffle 13. This, in turn, causes the anchor claw 6 to unfold more fully and lock more tightly through the connecting rod 9, thus forming a positive feedback adaptive stabilization mechanism.

[0047] It is worth mentioning that in extremely soft mud or sand, the efficiency of the anchor claw 6 in shearing the soil when it is deployed is not high. By providing multiple sets of drainage holes 601 on the surface of the anchor claw 6, some soil is forced to pass through the drainage holes when the anchor claw 6 is deployed. When the soil passes through the drainage holes 601, one or more compressed and compacted soil units will be formed inside and behind the drainage holes 601, which will generate greater viscous force and deformation resistance.

[0048] At this point, the force resisting the pullout of the anchor claw 6 mainly comes from the shear strength inside the soil that needs to be overcome to drag the entire soil unit. The shear strength of the soil is usually much greater than the interfacial friction between the smooth surface of the anchor claw and the soil. This is equivalent to creating several solid anchor points in the soft mud, which increases the pullout resistance by an order of magnitude.

[0049] More specifically: An anchor claw 6 is also provided with an installation groove 602 on the side of each set of drainage holes 601. The first claw spike 604 is rotatably connected to the installation groove 602 through the torsion spring shaft 603. Under the elastic force of the torsion spring inside the torsion spring shaft 603, the first claw spike 604 will seal the lower opening of the drainage hole 601. When the anchor claw 6 is unfolded, when water and soil pass through the drainage hole 601, they will push the first claw spike 604 connected to the torsion spring shaft 603 to rotate under the pressure. This will cause the first claw spike 604 to overcome the elastic force of the torsion spring inside the torsion spring shaft 603 and unfold under the pressure. At the same time, as the anchor claw 6 unfolds, it is inserted into the soil.

[0050] A first gear 605 is also connected to the torsion spring shaft 603, and a second gear 606 is rotatably connected in the mounting groove 602. The second gear 606 and the first gear 605 are meshed together, and a second claw 607 is connected to the surface of the second gear 606. The second claw 607 is located on the other side of the drain hole 601. When the first claw 604 unfolds under pressure, it will drive the first gear 605 to rotate through the torsion spring shaft 603. Furthermore, the first gear 605 meshes with the second gear 606 to drive the second claw 607 to rotate, so that the second claw 607 unfolds synchronously.

[0051] By extending the first claw 604 and the second claw 607 simultaneously from the inner and outer sides of the drainage hole 601 and biting deeply into the surrounding soil, a three-dimensional interlock with the soil is achieved. When pulling out the anchor claw 6, what needs to be overcome is no longer the friction force, but the shear force of the soil above the multiple claws and the force that will break the claws themselves. The resistance increases exponentially, greatly enhancing the pull-out resistance.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile multi-functional boat, comprising a hull (1) and a hydraulic positioning pile (2) installed on the hull (1), wherein the hydraulic positioning pile (2) includes a pile body (3) for insertion into the soil, characterized in that: A pressure plate (4) is slidably installed on the surface of the pile body (3) above its tip. After the pile body (3) is inserted into the soil and touches the bottom, the pressure plate (4) slides upward along the surface of the pile body (3) under the reaction force of the soil. The pile body (3) is provided with an inner cavity (301), and a piston block (302) is slidably arranged in the inner cavity (301). The piston block (302) is connected to the pressure plate (4) so ​​as to be driven to move upward when the pressure plate (4) slides up. A pressure chamber (303) is formed in the inner cavity (301) above the piston block (302). The side wall of the pile body (3) is provided with an opening that communicates with the pressure chamber (303). A push block (304) is slidably installed at the opening. The push block (304) is configured to extend outward after the medium in the pressure chamber (303) is squeezed by the piston block (302). A sliding platform (5) is slidably installed on the surface of the pile body (3). Several anchor claws (6) are rotatably connected on the sliding platform (5). The push block (304) cooperates with the sliding platform (5) to drive the sliding platform (5) to slide down along the surface of the pile body (3) with the anchor claws (6) when the push block (304) extends outward, and to make the anchor claws (6) unfold outward.

2. The multi-functional mobile boat according to claim 1, characterized in that, The upper surface of the pressure plate (4) is connected to a fixed tube (7), and a sliding tube (8) is slidably sleeved on the surface of the fixed tube (7). The sliding tube (8) is connected to the slide table (5) by a connecting rod (9). When the connecting rod (9) slides down the slide table (5) and slides up the sliding tube (8), it adjusts the unfolding angle of the anchor claw (6).

3. A mobile multi-functional boat according to claim 2, characterized in that, The surface of the pressure plate (4) is also provided with a water flow sensing mechanism for sensing the impact force of the water flow, and the pressure plate (4) is connected to the slide tube (8) in a transmission manner so as to drive the slide tube (8) to slide upward along the surface of the fixed tube (7) under the action of the water flow impact force, thereby increasing the unfolding angle of the anchor claw (6) through the connecting rod (9).

4. A mobile multi-functional boat according to claim 3, characterized in that, The water flow sensing mechanism also includes a sleeve (10) disposed on the surface of the pressure plate (4) and a push rod (12) that moves elastically within the sleeve (10). A baffle (13) is provided at the end of the push rod (12) facing upstream of the water flow. A lifting block (14) is provided on the push rod (12). A crossbar (15) is connected to the slide tube (8). When the push rod (12) moves under the thrust of the water flow, the lifting block (14) acts on the crossbar (15) to lift the slide tube (8).

5. A mobile multi-functional boat according to claim 1, characterized in that, A protruding plate (307) is fixed on the surface of the pile body (3), and a first spring (308) is provided between the protruding plate (307) and the slide (5). A sealing cover (309) surrounding the first spring (308) is also provided between the protruding plate (307) and the slide (5).

6. A mobile multi-functional boat according to claim 1, characterized in that, The piston block (302) is connected to the pressure plate (4) via a connecting rod (305), and the surface of the pile body (3) is provided with a sliding groove (306) for the connecting rod (305) to slide.

7. A mobile multi-functional boat according to claim 1, characterized in that, The surface of the anchor claw (6) is provided with drainage holes (601).

8. A mobile multi-functional boat according to claim 7, characterized in that, The anchor claw (6) is provided with an installation groove (602) corresponding to the position of the drainage hole (601). A first claw spike (604) is rotatably connected in the installation groove (602) through a torsion spring shaft (603). The first claw spike (604) is configured to seal the lower opening of the drainage hole (601) under normal conditions and to expand outward under the pressure of the soil-water mixture to overcome the torque of the torsion spring shaft (603).

9. A mobile multi-functional boat according to claim 8, characterized in that, A first gear (605) is connected to the torsion spring shaft (603), and a second gear (606) that meshes with the first gear (605) is rotatably connected in the mounting groove (602). A second claw (607) is connected to the second gear (606). The unfolding movement of the first claw (604) is driven by the meshing transmission between the first gear (605) and the second gear (606), which drives the second claw (607) to unfold synchronously.

10. A mobile multi-functional boat for waterborne use according to claim 1, characterized in that, The push block (304) is a wedge-shaped block with an inclined surface on its outer surface, and the inner surface of the slide (5) abuts against the inclined surface.