CN115233679B - Underwater guide frame with high structural strength - Google Patents

Abstract

The invention provides an underwater guide frame with high structural strength, which comprises a frame body, four guide cylinders vertically arranged on the frame body and an anti-sinking mechanism arranged in the middle of the bottom of the frame body, wherein the anti-sinking mechanism is connected with the frame body through a leveling mechanism, the anti-sinking mechanism comprises an anti-sinking plate, the middle part of the anti-sinking plate is provided with a through hole in a penetrating way, a plurality of unidirectional circulation components which circulate unidirectionally from top to bottom are distributed in the anti-sinking plate, and the anti-sinking plate is connected with the leveling mechanism. The unidirectional flow assembly is closed after the underwater guide frame is in a water draining state, so that the strength of the anti-sinking plate is guaranteed, seawater and sediment above the anti-sinking plate can flow downwards through the unidirectional flow assembly when the underwater guide frame is lifted, and therefore the adsorption force and water resistance of the sediment on the anti-sinking plate, which are received when the anti-sinking plate moves upwards, are reduced, and the whole underwater guide frame is conveniently lifted.

Description

An underwater guide frame with high structural strength

Technical field

The present invention relates to the technical field of offshore wind power platform construction equipment, and in particular to an underwater guide frame with high structural strength.

Background technique

With the rapid development of domestic offshore wind power generation, especially high-power wind turbines and deep-water offshore wind farms, the geological conditions in different sea areas vary greatly. The offshore wind turbine foundation must be able to adapt to a variety of complex geology. Therefore, for complex marine geological conditions , it is particularly important to anchor large wind turbines and their supporting structures to the seabed.

When constructing the jacket, the pile legs need to be buried first. However, since the sea depth reaches tens of meters, an underwater guide frame is needed to assist in the correct burial of the pile legs. However, there are still many uneven silts on the seabed, which requires the underwater guide frame to have a leveling function. When driving piles, the frame body will be affected by the impact stress component of the pile hammer. The current anti-sinking plate has difficulties in leveling. While receiving impact stress, it forms a sealing layer with the silt, making it difficult to lift.

In order to solve the above technical problems, a Chinese invention patent with publication number CN114635427A discloses an underwater guide frame, the anti-sinking part of the underwater guide frame is a truncated cone-shaped frame structure, which can have good contact with the silt and at the same time avoid the adsorption of the silt on the anti-sinking part to the greatest extent; the adjustment mechanism makes it more convenient to adjust the angle of the anti-sinking part, which speeds up the adjustment efficiency; the anti-sinking part is more labor-saving when lifting upwards, so that the service life of the anti-sinking part is further extended.

It can be known from the details recorded in the patent application document that the anti-sinking parts of the above-mentioned underwater guide frame are a truncated cone-shaped frame structure with an inward recessed bottom. The anti-sinking parts include connecting rings and multiple connections. The support ring is coaxially arranged. The connecting ring is located at the top. Two adjacent support rings are spaced apart. The support rings are connected by multiple support blocks. The multiple support blocks are arranged radially. One end of the support block is connected to The outer wall of the connecting ring is fixedly connected.

However, in practical applications, it was found that for large underwater guide frames, the anti-sinking parts using this structure have low structural strength and cannot stably bear the impact stress component of the pile hammer during pile driving, and cannot ensure sufficient compression resistance. strength.

Contents of the invention

The purpose of the present invention is to provide an underwater guide frame with high structural strength to solve the technical problems raised in the background art.

In order to achieve the above object, the present invention provides an underwater guide frame with high structural strength, which includes a frame body, four guide tubes arranged vertically on the frame body, and an anti-protection guide frame located at the middle position of the bottom of the frame body. The anti-sinking mechanism is connected to the frame body through a leveling mechanism. The anti-sinking mechanism includes an anti-sinking plate. There is a through hole in the middle of the anti-sinking plate. There are multiple holes distributed in the anti-sinking plate. A one-way circulation component with one-way circulation from top to bottom, and the anti-sinking plate is connected to the leveling mechanism.

Further, the one-way flow assembly includes a limiting cover, a spring base, a baffle and a spring;

The spring base is cylindrical, with an open top and a sealed bottom, and leakage holes are evenly distributed on the circumferential side walls of the spring base;

The spring is arranged vertically in the spring base;

A water hole is provided through the middle part of the limit cover, and the limit cover is connected to the open end of the top of the spring base;

The baffle is movably arranged in the spring base, the baffle is located between the top of the spring and the bottom of the limit cover, and the upper surface of the baffle is movablely attached to the bottom of the limit cover. Seal the water flow holes.

Further, an annular limiting boss is concentrically arranged on the inner wall of the spring base. The limiting boss is located at the bottom of the leak hole. The inner diameter of the limiting boss is smaller than the baffle. diameter; the spring is vertically installed in the limiting boss.

Furthermore, a plurality of drainage convex blocks are distributed on the upper surface of the anti-sinking plate, and the drainage convex blocks are in the shape of a spherical crown.

Further, the leveling mechanism includes four hydraulic cylinders arranged symmetrically in pairs. One end of the hydraulic cylinder is connected with a ball joint at the bottom of the frame body, and the other end is connected with a ball joint on the upper surface of the anti-sinking plate.

The beneficial effects of the present invention are embodied in:

After the underwater guide frame is launched into the water, the one-way flow assembly is in a closed state, ensuring the strength of the anti-sinking plate. When the underwater guide frame is lifted, the seawater and silt above the anti-sinking plate can flow downward through the one-way flow assembly, thus Reduce the adsorption force of silt on the anti-sinking plate and the resistance of water when the anti-sinking plate moves upward, making it easier to lift the entire underwater guide frame.

In addition, the drainage protrusions will guide the seawater and sediment above the anti-sinking plate to fall into the one-way flow component more quickly, further reducing the resistance encountered by the anti-sinking plate when it moves upward.

Finally, the leveling mechanism includes four hydraulic cylinders arranged symmetrically in pairs, and the hydraulic cylinders are spherically connected to the frame and the anti-sinking plate, which can adjust the anti-sinking plate at multiple angles and improve the leveling efficiency.

In summary, the underwater guide frame of the present invention not only greatly improves the leveling efficiency, but also makes the guide frame easier to lift from seawater while ensuring the strength of the anti-sinking plate, which is more in line with actual needs.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic structural diagram of an underwater guide frame with high structural strength provided by an embodiment of the present invention;

FIG2 is a first structural schematic diagram of an anti-sinking plate provided in an embodiment of the present invention;

Figure 3 is a second structural schematic diagram of an anti-sinking plate provided by an embodiment of the present invention;

FIG4 is a schematic diagram of the structure of a one-way flow assembly provided in an embodiment of the present invention;

Figure 5 is a schematic diagram of the installation structure of the hydraulic cylinder provided by the embodiment of the present invention.

Detailed ways

The specific implementation of the present invention will be described in more detail below in conjunction with the schematic diagram. The advantages and features of the present invention will become clearer based on the following description. It should be noted that the drawings are all in a very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

As shown in Figures 1, 2 and 3, the embodiment of the present invention provides an underwater guide frame with high structural strength, including a frame body 1, four guide tubes 2 installed vertically on the frame body 1 and a An anti-sinking mechanism 3 is provided at the middle position of the bottom of the frame 1. The anti-sinking mechanism 3 is connected to the frame 1 through a leveling mechanism. The anti-sinking mechanism 3 includes an anti-sinking plate 4. A through hole 5 is provided in the middle of the anti-sinking plate 4 to prevent A plurality of one-way circulation components 6 that circulate in one direction from top to bottom are distributed in the sinking plate 4, and the anti-sinking plate 4 is connected to the leveling mechanism.

Specifically, as shown in FIG. 4 , the one-way flow assembly 6 includes a limiting cover 7 , a spring base 8 , a baffle 9 and a spring 10 . The spring base 8 is cylindrical, with an open top and a sealed bottom. There are leakage holes 11 evenly distributed on the circumferential side walls of the spring base 8 . The spring 10 is arranged vertically in the spring base 8 . A water hole 12 is provided through the middle of the limit cover 7 , and the limit cover 7 is connected to the open end of the top of the spring base 8 . The baffle 9 is movably arranged in the spring base 8. The baffle 9 is located between the top of the spring 10 and the bottom of the limit cover 7. The upper surface of the baffle 9 and the bottom surface of the limit cover 7 are movable and fit together to seal the water hole 12.

When the underwater guide frame is lifted upward, seawater and silt flow in from the water flow hole 12, and compress the spring 10 downward through the baffle plate 9. After the spring 10 is compressed, the baffle plate 9 breaks away from contact with the bottom surface of the limit cover 7 and moves downward axially along the spring base 8. At this time, the leakage hole 11 is connected with the water flow hole 12, and seawater and silt can flow from the upper surface of the anti-sinking plate 4 to the lower surface.

An annular limiting boss 13 is concentrically provided on the inner wall of the spring base 8 . The limiting boss 13 is located at the bottom of the leak hole 11 . The inner diameter of the limiting boss 13 is smaller than the diameter of the baffle 9 . The spring 10 is vertically inserted into the limiting boss 13 . The limiting boss 13 is used to limit the downward movement of the baffle 9 .

Further, as shown in FIG. 2 , a plurality of drainage convex blocks 14 are distributed on the upper surface of the anti-sinking plate 4 , and the drainage convex blocks 14 are in the shape of a spherical crown.

Specifically, the drainage protrusions 14 include two types, the two types of drainage protrusions 14 are of different sizes, and the two types of drainage protrusions 14 are evenly and symmetrically arranged on the upper surface of the anti-sinking plate 4. The distribution of drainage protrusions 14 of different sizes is related to the distribution of the one-way flow components 6 on the anti-sinking plate. Specifically, at the center where the one-way flow components 6 are densely packed, a large drainage protrusion 14 is used to help water and sediment flow better into the nearby one-way flow components 6; and a relatively small drainage protrusion 14 is used at the surrounding edge of the anti-sinking plate 4.

Since the surface of the drainage convex block 14 presents a smooth spherical crown, the water and sediment on the surface of the drainage convex block 14 will slide down along the surface of the drainage convex block 14 and some of it will fall into the surrounding one-way circulation component 6 , and some directly drop the anti-sinking plate 4, thereby assisting the flow of water and sediment more efficiently.

In this embodiment, the leveling mechanism includes four hydraulic cylinders 15 arranged symmetrically in pairs. As shown in Figure 5, one end of the hydraulic cylinder 15 is spherically connected with the bottom of the frame 1, and the other end is spherically connected with the upper surface of the anti-sinking plate 4. Hinge connection. The four hydraulic cylinders 15 can adjust the anti-sinking plate 4 at multiple angles to improve the leveling efficiency.

In summary, after the underwater guide frame is launched into the water, the one-way flow assembly will be in a closed state, ensuring the strength of the anti-sinking plate. When the underwater guide frame is lifted, the seawater and silt above the anti-sinking plate can pass through the one-way flow assembly to the It flows downward, thereby reducing the adsorption force of silt on the anti-sinking plate and the resistance of water when the anti-sinking plate moves upward, making it easier to lift the entire underwater guide frame.

Moreover, the drainage convex block will guide the seawater and sediment above the anti-sinking plate to fall into the one-way flow assembly faster, further reducing the resistance encountered by the anti-sinking plate when it moves upward.

Finally, the leveling mechanism includes four hydraulic cylinders arranged symmetrically in pairs, and the hydraulic cylinders are spherically connected to the frame and the anti-sinking plate, which can adjust the anti-sinking plate at multiple angles and improve the leveling efficiency.

In summary, the underwater guide frame of the present invention not only greatly improves the leveling efficiency, but also makes the guide frame easier to lift from seawater while ensuring the strength of the anti-sinking plate, which is more in line with actual needs.

The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any person skilled in the technical field who makes any form of equivalent substitution or modification to the technical solutions and technical contents disclosed in the present invention shall not deviate from the technical solutions of the present invention. The contents still fall within the protection scope of the present invention.

Claims (4)

1. The utility model provides a high-structural strength underwater guide frame, is in including support body (1), four vertical settings guide cylinder (2) on support body (1) and be located prevent heavy mechanism (3) that support body (1) bottom intermediate position set up, prevent heavy mechanism (3) through leveling mechanism with support body (1) are connected, its characterized in that: the anti-sinking mechanism (3) comprises an anti-sinking plate (4), a through hole (5) is formed in the middle of the anti-sinking plate (4) in a penetrating mode, a plurality of unidirectional circulation assemblies (6) which circulate unidirectionally from top to bottom are distributed in the anti-sinking plate (4), and the anti-sinking plate (4) is connected with the leveling mechanism;

the unidirectional flow assembly (6) comprises a limit cover (7), a spring base (8), a baffle (9) and a spring (10);

the spring base (8) is cylindrical, the top end of the spring base is open, the bottom end of the spring base is sealed, and drain holes (11) are uniformly distributed on the circumferential side wall of the spring base (8);

the spring (10) is vertically arranged in the spring base (8);

the middle part of the limiting cover (7) is provided with a water flow hole (12) in a penetrating way, and the limiting cover (7) is connected to the open end of the top of the spring base (8);

the baffle (9) is movably arranged in the spring base (8), the baffle (9) is arranged between the top of the spring (10) and the bottom of the limit cover (7), and the upper surface of the baffle (9) is movably attached to the bottom surface of the limit cover (7) so as to seal the water flow hole (12).

2. The underwater guide frame with high structural strength according to claim 1, wherein annular limiting bosses (13) are concentrically arranged on the inner wall of the spring base (8), the limiting bosses (13) are arranged at the bottom of the drain hole (11), and the inner diameter size of the limiting bosses (13) is smaller than the diameter size of the baffle plate (9); the spring (10) vertically penetrates through the limiting boss (13).

3. An underwater guiding frame with high structural strength as in claim 1, characterized in that a plurality of drainage convex blocks (14) are distributed on the upper surface of the anti-sinking plate (4), and the drainage convex blocks (14) are spherical crowns.

4. The underwater guide frame with high structural strength according to claim 1, wherein the leveling mechanism comprises four hydraulic cylinders (15) which are symmetrically arranged in pairs, one end of each hydraulic cylinder (15) is connected with a spherical hinge at the bottom of the frame body (1), and the other end of each hydraulic cylinder is connected with a spherical hinge on the upper surface of the anti-sinking plate (4).