Offshore wind power implantable rock-socketed steel pipe pile side wall grouting automatic connecting device

Abstract

The utility model discloses an offshore wind power implantable rock-socketed steel pipe pile side wall grouting automatic connecting device which comprises a male head structure, a female head structure, a pushing structure and at least two sets of locking structures, the first end of the female head structure is connected with the pushing structure, and the two sets of locking structures are evenly distributed in the circumferential direction of the female head structure; the second end of the female head structure is connected with the first end of the male head structure. Automatic butt joint and locking of the insertion pipe and the prefabricated grouting pipeline are achieved, diving operation of manual pipeline connection and release in the prior art is omitted, the construction safety risk is reduced, the construction efficiency is improved, and a foundation is laid for grouting construction of the side wall of the high-quality implantable rock-socketed steel pipe pile.

Description

Technical Field

[0001] This application belongs to the field of offshore wind power technology, specifically relating to an automatic connection device for grouting the sidewall of an embedded rock-socketed steel pipe pile for offshore wind power. Background Technology

[0002] In the construction of offshore wind farms, the stability and safety of the foundation are key technical aspects. Taking a certain wind farm as an example, the water depth reaches 28 meters and the overburden thickness is about 10 meters. The widely used driven pile foundations are difficult to meet the design requirements. For this type of wind farm project, embedded rock-socketed steel pipe piles are generally used for the foundation.

[0003] Currently, grouting of the sidewalls of embedded rock-socketed steel pipe piles generally employs either the precast pipeline method or the pipe insertion method, which has several drawbacks. For example, when using the precast pipeline method, the bottom layer of precast pipelines can only serve as a sealing concrete layer. Once the sealing concrete reaches a certain strength, the upper layer of precast pipelines needs to be replaced for grouting. When the mud concentration inside the steel casing is high, the mud needs to be diluted and replaced after the steel pipe pile is installed to meet the requirements of underwater operations, but this also increases the risk of borehole collapse and reduces grouting efficiency. When using the pipe insertion method, if a pre-cast concrete scheme is adopted within the pile, for rock-socketed piles with a risk of floating during grouting, the pipe insertion method cannot control the process of rapid setting grouting at the bottom. The rock wall section and the steel casing section need to be grouted in layers, resulting in low construction efficiency.

[0004] Therefore, there is an urgent need to propose an automatic connection device for grouting the sidewall of embedded rock-socketed steel pipe piles for offshore wind power, which can provide a basis for combining the prefabricated pipeline method and the pipe insertion method, so as to reduce the operational risks in the grouting construction process, simplify the construction process, and improve the construction efficiency. Utility Model Content

[0005] In view of the shortcomings or deficiencies of the prior art, the technical problem to be solved by this application is to provide an automatic connection device for grouting the sidewall of an embedded rock-socketed steel pipe pile for offshore wind power.

[0006] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0007] This application proposes an automatic connection device for grouting the sidewall of an embedded rock-socketed steel pipe pile for offshore wind power, comprising: a male head structure, a female head structure, a pushing structure, and at least two sets of locking structures. The first end of the female head structure is connected to the pushing structure, and the two sets of locking structures are evenly distributed around the circumference of the female head structure. The second end of the female head structure is connected to the first end of the male head structure.

[0008] Optionally, the above-described automatic connection device further includes a guide structure connected to the first end of the male connector structure.

[0009] Optionally, in the above-described automatic connection device, the guiding structure includes a guide rope and a hook, the hook being disposed at the first end of the male head structure, and the guide rope being connected to the hook.

[0010] Optionally, in the above-described automatic connection device, the locking structure includes a locking rod, a rotating member, and an elastic member. The rotating member is disposed in the middle of the locking rod and connected to the female head structure, and the elastic member connects the locking rod and the female head structure.

[0011] Optionally, in the above-mentioned automatic connection device, the locking rod includes: a rod body, an arc portion, and a locking portion. The arc portion is disposed in the middle of the rod body, and the convex side of the arc portion faces the female head structure. The locking portion is disposed at the end of the rod body, and the locking portion is configured to cooperate with the slot of the male head structure.

[0012] Optionally, in the above-described automatic connection device, the rotating component includes a pin and a connecting rod, wherein the pin connects one end of the connecting rod to the locking rod, and the other end of the connecting rod is connected to the female head structure.

[0013] Optionally, in the above-described automatic connection device, the elastic element includes a spring.

[0014] Optionally, in the above-described automatic connection device, the pushing structure includes a hollow jack.

[0015] Optionally, the above-mentioned automatic connection device further includes a control module connected to the push structure.

[0016] Optionally, the above-mentioned automatic connection device further includes: a displacement sensor disposed within the locking structure, and the displacement sensor is also connected to the control module.

[0017] Compared with the prior art, this application has the following technical effects:

[0018] This application enables automatic docking and locking of the inserted pipe and the precast grouting pipeline, eliminating the need for underwater operations for manual pipeline connection and disconnection in existing technologies, reducing construction safety risks, improving construction efficiency, and laying the foundation for high-quality embedded rock-socketed steel pipe pile sidewall grouting construction. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 : A cross-sectional schematic diagram of the male and female heads separated in one embodiment of this application;

[0021] Figure 2 A cross-sectional schematic diagram of the male and female heads locking together in one embodiment of this application;

[0022] In the diagram: 1. Male head structure; 2. Female head structure; 3. Locking rod; 4. Pin; 5. Connecting rod; 6. Spring; 7. Rod body; 8. Arc part; 9. Snap-fit ​​part; 10. Slot; 11. Guide rope; 12. Hollow jack; 13. Insertion tube; 14. Prefabricated pipeline. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figure 1 and Figure 2 As shown, one embodiment of this application proposes an automatic connection device for grouting the sidewall of an embedded rock-socketed steel pipe pile for offshore wind power, comprising: a male head structure 1, a female head structure 2, a pushing structure, and at least two sets of locking structures. The first end of the female head structure 2 is connected to the pushing structure, and the two sets of locking structures are evenly distributed in the circumferential direction of the female head structure 2. The second end of the female head structure 2 is connected to the first end of the male head structure 1.

[0025] In this embodiment, the automatic connection device is used in the grouting operation of the side wall of the embedded rock-socketed steel pipe pile for offshore wind power. Specifically, the male head structure 1 is fixedly connected to the prefabricated pipeline 14, and the female head structure 2 is fixedly connected to the insertion pipe 13. The pushing structure is sleeved on the insertion pipe 13. In this embodiment, four sets of locking structures are set and evenly distributed on the outer surface of the female head structure 2. Of course, those skilled in the art can also increase or decrease the number of locking structures according to actual needs.

[0026] In this embodiment, multiple prefabricated pipelines 14 with male head structures 1 are pre-installed on the steel pipe pile. The steel pipe pile is lowered into the rock-embedded hole, and an insert pipe 13 equipped with a female head structure 2 and a pushing structure is lowered in, allowing the female head structure 2 to align with the male head structure 1. The pushing structure pushes the locking structure to lock the female head structure 2 and the male head structure 1, achieving automatic docking and locking of the insert pipe 13 with the prefabricated grouting pipelines. This eliminates the need for underwater operations for manual pipeline connection and disconnection in existing technologies, reducing construction safety risks and improving construction efficiency. This embodiment combines the prefabricated pipeline method with the insert pipe method in grouting, changing the insertion of the pipe from the outer side of the pile to the inner side. The automatic connection device proposed in this embodiment lays the foundation for low-risk, high-efficiency, and high-quality sidewall grouting construction of embedded rock-embedded steel pipe piles.

[0027] Optionally, the male connector structure 1 and / or the female connector structure 2 are made of alloy steel to ensure high strength, rigidity, and corrosion resistance, adapt to the locking force requirements under high-pressure working conditions of the grouting pipeline, and ensure that the automatic connection device has a long service life.

[0028] The automatic connection device also includes a guide structure, which is connected to the first end of the male connector 1. When the cannula 13 is lowered, the guide structure can pass through the cannula 13 to guide the lowering path of the cannula 13 and align with the male connector 1.

[0029] Specifically, the guiding structure includes a guide rope 11 and a hook. The hook is disposed at the first end of the male head structure 1, and the guide rope 11 is connected to the hook so that the guide rope 11 can be connected to or disconnected from the male head structure 1.

[0030] Optionally, the guide rope 11 is made of 6mm to 8mm galvanized steel wire rope with a breaking strength of 15kN to 30kN, which gives the guide rope 11 a certain degree of corrosion resistance.

[0031] Optionally, the total breaking force at the connection between the guide rope 11 and the hook is 5kN to 10kN to ensure that the guide rope 11 separates from the hook after the insertion tube 13 and the prefabricated pipeline 14 are locked, and the guide rope 11 will not break.

[0032] In this embodiment, after the male head structure 1 and the female head structure 2 are engaged and locked, a breaking force of 10kN is applied, causing the guide rope 11 to separate from the male head structure 1 with the hook.

[0033] Optionally, the pushing structure includes, but is not limited to, the hollow jack 12.

[0034] In this embodiment, the inner surface of the hollow jack 12 is fixedly connected to the insertion tube 13, allowing the outer ring structure of the hollow jack 12 to move relative to the insertion tube 13, thereby achieving the function of pushing the locking structure. Of course, those skilled in the art can also choose other pushing structures that can move axially relative to the insertion tube 13 and push the locking structure.

[0035] Optionally, the locking structure includes: a locking rod 3, a rotating member, and an elastic member. The rotating member is disposed in the middle of the locking rod 3 and connected to the female head structure 2. The elastic member connects the locking rod 3 and the female head structure 2.

[0036] In this embodiment, a rotating component connects the locking rod 3 and the female head structure 2, allowing the locking rod 3 to rotate around its center point, enabling one end to move closer to the female head structure 2 and the other end to move away from it, or vice versa. Additionally, an elastic component connects the locking rod 3 and the female head structure 2. This elastic component includes, but is not limited to, a spring 6. The spring 6, in conjunction with the pushing structure, controls the movement of the locking rod 3 relative to the female head structure 2.

[0037] Optionally, the locking lever 3 includes: a lever body 7, an arc portion 8, and a locking portion 9. The arc portion 8 is disposed in the middle of the lever body 7, and the convex side of the arc portion 8 is disposed towards the female head structure 2. The locking portion 9 is disposed at the end of the lever body 7, and the locking portion 9 is configured to cooperate with the slot 10 of the male head structure 1.

[0038] In this embodiment, the middle part of the rod body 7 is provided with an arc portion 8 facing the female head structure 2 to guide the pushing structure to push the rod body 7. The end of the rod body 7 that connects with the male head structure 1 is provided with a snap-fit ​​portion 9 to engage with the snap-fit ​​groove 10 of the male head structure 1.

[0039] Specifically, the male head structure 1 has a slot 10 for connecting with the snap-fit ​​part 9 in the circumferential direction.

[0040] Optionally, the rotating component includes a pin 4 and a connecting rod 5. The pin 4 connects one end of the connecting rod 5 to the locking rod 3, and the other end of the connecting rod 5 connects to the female head structure 2, so as to realize that the locking rod 3 rotates relative to the female head structure 2.

[0041] Optionally, the automatic connection device further includes a control module connected to the push structure.

[0042] In this embodiment, the control module includes a hydraulic pump and a displacement display. The hydraulic pump is connected to the hollow jack 12 to control the start and stop of the hollow jack 12. The displacement display is connected to the displacement sensor mentioned below to obtain the displacement of the locking rod 3.

[0043] Optionally, the control module includes, but is not limited to, a microcontroller.

[0044] Optionally, the automatic connection device further includes a displacement sensor disposed within the locking structure, and the displacement sensor is also connected to the control module.

[0045] In this embodiment, a displacement sensor is disposed in the spring 6 to detect the displacement of the locking lever 3. The displacement sensor is also electrically connected to the control module to feed back the displacement data to the control module.

[0046] In the description of this application, unless otherwise expressly 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 application according to the specific circumstances.

[0047] In this application, unless otherwise expressly 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.

[0048] 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 this application. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0049] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. The preferred embodiments have been described in detail. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the claims of this application.

Claims

1. An automatic connection device for grouting the sidewall of an embedded rock-socketed steel pipe pile for offshore wind power, characterized in that, include: The device includes a male connector structure, a female connector structure, a push structure, and at least two sets of locking structures. The first end of the female connector structure is connected to the push structure. The two sets of locking structures are evenly distributed around the circumference of the female connector structure. The second end of the female connector structure is connected to the first end of the male connector structure.

2. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 1, characterized in that, Also includes: A guiding structure is connected to the first end of the male connector structure.

3. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 2, characterized in that, The guiding structure includes a guide rope and a hook, the hook being disposed at the first end of the male head structure, and the guide rope being connected to the hook.

4. The automatic connection device for sidewall grouting of embedded rock-socketed steel pipe piles for offshore wind power according to any one of claims 1 to 3, characterized in that, The locking structure includes a locking rod, a rotating component, and an elastic component. The rotating component is disposed in the middle of the locking rod and connected to the female head structure. The elastic component connects the locking rod and the female head structure.

5. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 4, characterized in that, The locking lever includes a lever body, an arc portion, and a locking portion. The arc portion is located in the middle of the lever body, with its convex side facing the female head structure. The locking portion is located at the end of the lever body and is configured to cooperate with the slot of the male head structure.

6. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 4, characterized in that, The rotating component includes a pin and a connecting rod. The pin connects one end of the connecting rod to the locking rod, and the other end of the connecting rod connects to the female head structure.

7. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 4, characterized in that, The elastic element includes: a spring.

8. The automatic connection device for sidewall grouting of embedded rock-socketed steel pipe piles for offshore wind power according to any one of claims 1 to 3, characterized in that, The propulsion structure includes a hollow jack.

9. The automatic connection device for sidewall grouting of embedded rock-socketed steel pipe piles for offshore wind power according to any one of claims 1 to 3, characterized in that, Also includes: A control module, which is connected to the push structure.

10. The automatic connection device for sidewall grouting of offshore wind power embedded rock-socketed steel pipe piles according to claim 9, characterized in that, Also includes: A displacement sensor is disposed within the locking structure and is also connected to the control module.

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