Turnover type pile shoe for stabilizing pile leg

Abstract

The utility model discloses a turnover type pile shoe for stabilizing a pile leg, the pile shoe is provided with a plurality of shoe feet and an assembly seat, the shoe feet are circumferentially arranged at the lower end of the pile leg, each shoe foot is provided with a connecting end and a turnover end, the assembly seat is arranged at the connecting end of each shoe foot, the connecting end of each shoe foot is movably connected with the lower end of the pile leg through the assembly seat, and the turnover end of each shoe foot is connected with the lower end of the pile leg. The overturning end of the shoe foot extends in the direction away from the pile leg. When the pile leg is installed, the overturning end of the shoe foot makes contact with the seabed firstly, and the overturning end is overturned outwards along with gradual sinking of the pile leg till the shoe foot is perpendicular to the pile leg; when the pile leg is lifted, the overturning end is overturned downwards to the position under the lower end of the pile leg under the action of self weight along with gradual rising of the pile leg. The structure is simple, installation and maintenance are easy, the manufacturing cost is low, the contact area between the pile leg and the seabed is increased, the positioning and installation stability of the pile leg on the seabed is improved, and the pile leg is safe and convenient to hoist.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering equipment, in particular to a flip-up pile shoe for stabilizing pile legs. Background Art

[0002] During the construction of marine engineering projects, the deployment and installation of pile legs usually do not require special treatment. However, when the seabed has steep slopes or other uneven areas, if the pile legs are not positioned properly, they are prone to slipping, which may cause the work platform or hull to slip or even capsize, posing a safety risk.

[0003] In the prior art, pile legs are provided with pile-fixing devices, which enable the legs to be securely positioned at the seabed piling position. For example, the Chinese invention patent with publication number CN102704454B, entitled "A Pile-Fixing Device and Method for a Self-Elevating and Self-Propelled Vessel," discloses a pile-fixing device comprising a fixed lug plate and a sliding frame. The fixed lug plate is fixed to the pile leg, and the sliding frame is disposed below the fixed lug plate. The sliding frame is movably connected to the fixed lug plate via a connecting rod. The fixed lug plate is connected to the connecting rod via multiple revolute pairs. The fixed lug plate is provided with multiple limit slots corresponding to the revolute pairs to limit the swing of the connecting rod. Sliding slots are symmetrically arranged 180 degrees at the lower end of the pile leg. The sliding frame can slide along the sliding slots symmetrically distributed along the outer edge of the pile leg. Multiple pin holes are equidistantly disposed within the sliding slots, which allow the depth of the pile leg inserted into the mud to be adjusted. Square gaskets and square toothed blocks are bolted to the lower surfaces of both ends of the sliding frame. The sliding frame can be adjusted to suit different seabed environments by manufacturing square gaskets of different sizes and specifications.

[0004] Although the pile fixing device in the prior art can basically position the pile legs at the designated position on the seabed, it still has the following defects:

[0005] 1. The existing pile fixing device is composed of many components such as connecting rod structure, slide groove, limit groove and gasket. The overall structure is relatively complex. If used in the submarine environment for a long time, the failure rate is high and the maintenance cost is high.

[0006] 2. The existing pile fixing device mainly contacts the seabed when the sliding frame descends. However, the contact area between the sliding frame and the seabed is limited, and the positioning stability of the pile legs is not ideal. In addition, a gasket needs to be placed at the bottom of the sliding frame, which is cumbersome to operate.

[0007] 3. Since the fixed ear plates, connecting rod structure and sliding frame are all externally arranged on the outside of the pile legs, the pile fixing device is likely to collide with nearby objects when lifting the pile legs, which increases the construction safety risk. In addition, setting the pile fixing device on the outside of the pile legs is equivalent to increasing the contact area between the pile legs and water, and the pile legs are subjected to greater water pressure when pulling out. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the present invention aims to provide a flip-up pile shoe for stabilizing pile legs.

[0009] The purpose of the utility model is achieved by adopting the following technical solution: a flip-up pile shoe for stabilizing a pile leg, the pile shoe having a shoe foot and an assembly seat, the shoe foot having a plurality of shoe feet, the plurality of shoe feet being circumferentially arranged at the lower end of the pile leg, the shoe foot having a connecting end and a flip-up end, the assembly seat being arranged at the connecting end of the shoe foot, the connecting end of the shoe foot being movably connected to the lower end of the pile leg through the assembly seat, and the flip-up end of the shoe foot extending in a direction away from the pile leg;

[0010] The flip end of the boot foot extends away from the pile leg. When the flip end of the boot foot contacts the seabed, it flips outward as the pile leg gradually sinks until the boot foot and the pile leg are perpendicular to each other; and when the boot foot gradually rises with the pile leg, the flip end is flipped downward to just below the lower end of the pile leg due to the weight of the boot foot.

[0011] Furthermore, the assembly seat is integrally formed and arranged on the surface of the connecting end of the boot foot, and the assembly seat is composed of two vertical plates that are parallel and arranged on the surface of the connecting end at a distance, and an assembly groove is formed between the two vertical plates; the connecting end of the boot foot extends into the pile hole of the pile leg, and the inner hole wall of the pile leg is provided with an assembly block, and the assembly block is embedded in the assembly groove of the assembly seat and is movably connected to each other through a rotating shaft.

[0012] Furthermore, a limiting portion is provided at the end proximal to the assembly slot of the assembly block, and when the flip end of the boot foot flips downward to just below the pile leg, the bottom of the assembly slot fits into the limiting portion of the assembly block.

[0013] Furthermore, the end of the flip end of the boot foot is set to be arc-shaped, and the width of the flip end of the boot foot is greater than the width of the connecting end, so that the width of the boot foot is gradually narrowed from the flip end to the connecting end.

[0014] Furthermore, when the flip end of the shoe foot is unfolded and perpendicular to the pile leg, the end radius of the flip end is greater than twice the outer surface radius of the pile leg.

[0015] Furthermore, a reinforcing rib is provided on the boot foot, and the reinforcing rib stands on the surface of the boot foot and extends from the connecting end to the flipping end of the boot foot; a limiting opening is provided at the lower end of the pile leg, and when the flipping end of the boot foot is flipped upward to be perpendicular to the pile leg, the upper edge of the reinforcing rib is embedded in the limiting opening of the pile leg.

[0016] Furthermore, the reinforcement ribs are provided in two pieces and are correspondingly provided on the left and right sides of the assembly seat, and the two reinforcement ribs are correspondingly extended along the length direction of the two sides of the boot foot.

[0017] Furthermore, there are two assembly seats, the reinforcement rib is arranged in the middle of the boot foot, and the two assembly seats are arranged on the left and right sides of the reinforcement rib.

[0018] Furthermore, a right-angle support portion is provided between the reinforcing rib and the side of the boot foot, and the lower end of the pile leg has a bottom plate extending toward the middle of the pile hole. When the flip end of the boot foot flips upward to be perpendicular to the pile leg, the right-angle support portion supports the bottom plate.

[0019] Furthermore, the bottom plate is arranged on the inner wall of the pile leg, and a plurality of bottom plates are provided and arranged equidistantly along the circumference of the inner wall of the pile leg, and two adjacent bottom plates are correspondingly supported on the right-angle support parts on the left and right sides of the boot foot.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the embodiment of the present application provides a flip-up pile shoe. When the pile shoe is installed at the lower end of the pile leg, the connecting end of the shoe foot is movably connected to the pile leg through the assembly seat, and the flip end of the shoe foot can be flipped up and down with the connection between the assembly seat and the pile leg as the center point. The structure is simple, easy to install and maintain, and components such as connecting rods, slide grooves and limit grooves used in the past are saved, thereby reducing the manufacturing cost of the pile shoe.

[0021] When the pile leg is lowered to the seabed for installation, as the pile leg gradually sinks, the flip end first contacts the seabed and flips outward along the seabed until the boot foot and the pile leg are perpendicular to each other. Several boot feet are spread out around the pile leg, and the lower end of the pile leg and the boot foot are upright on the seabed, thereby increasing the contact area between the pile leg and the seabed and improving the stability of the pile leg's positioning and installation on the seabed, without the need for pads as in the past;

[0022] When lifting the pile leg, as the pile leg gradually rises, the boot foot is affected by its own weight and the flip end flips downward to just below the lower end of the pile leg. Compared with the previous implementation method of setting a pile fixing device on the outside of the pile leg, there are no redundant parts around the pile leg, and the construction process is safer; and in the lifting direction, only the pile leg itself is in contact with water, so there is no need to bear excessive water pressure when lifting the pile leg, thereby reducing the lifting pressure of the pile leg and improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a preferred embodiment of the present invention in which a pile shoe is installed on a pile leg;

[0024] Figure 2 This is a top view of a preferred embodiment of the present invention in which a pile shoe is installed on a pile leg;

[0025] Figure 3 for Figure 2 Stereoscopic cross-sectional view after cutting in the AA direction;

[0026] Figure 4 for Figure 3A magnified schematic diagram of point B in the middle;

[0027] Figure 5 This is a plan view of a preferred embodiment of the present invention in which the pile shoe is installed on the pile leg in a stowed state;

[0028] Figure 6 This is a plan view of a preferred embodiment of the present invention in which the pile shoe is installed on the pile leg in an expanded state.

[0029] In the picture:

[0030] 1. Pile boots;

[0031] 10. Boot foot; 101. Connecting end; 102. Flip end; 103. Right-angle support;

[0032] 11. Assembly seat; 110. Vertical plate; 111. Assembly groove; 1110. Groove bottom;

[0033] 12. Strengthening ribs;

[0034] 13. Rotating shaft;

[0035] 2. Pile leg; 21. Limit opening; 22. Assembly block; 220. Limiting part; 23. Bottom plate. DETAILED DESCRIPTION

[0036] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0037] like Figure 1-6 As shown, a flip-up pile shoe 1 for stabilizing a pile leg 2 comprises a shoe foot 10, an assembly seat 11, and a reinforcing rib 12. The shoe foot 10 comprises a plurality of shoe feet 10. In use, the shoe feet 10 are circumferentially arranged at the lower end of the pile leg 2. The shoe foot 10 comprises a connecting end 101 and a flip-up end 102. The flip-up end 102 of the shoe foot 10 is arc-shaped. When the flip-up ends 102 of the shoe foot 10 are flipped to be perpendicular to the pile leg 2, the flip-up ends 102 present a plurality of equally spaced circular edges.

[0038] The width of the flip end 102 of the boot foot 10 is greater than the width of the connecting end 101, so that the width of the boot foot 10 is gradually narrowed from the flip end 102 to the connecting end 101. The shape of the entire boot foot 10 is roughly in the shape of a figure eight. Since the connecting end 101 of the boot foot 10 is movably connected to the lower end of the pile leg 2, the flip end 102 is flipped outward and unfolded. This figure eight design of the boot foot 10 is more stable when installed on the pile leg 2.

[0039] In addition, the flip end 102 of the boot foot 10 is unfolded and perpendicular to the pile leg 2, that is, when the boot foot 10 and the pile leg 2 are at a 90-degree perpendicular relationship, and because the end of the flip end 102 is set to be arc-shaped, the end radius R1 of the flip end 102 is greater than twice the outer surface radius R2 of the pile leg 2. By increasing the length of the boot foot 10, the contact area between the pile leg 2 and the seabed is increased, and the positioning and installation stability of the pile leg 2 on the seabed is further improved.

[0040] The assembly seat 11 is integrally formed and arranged on the surface of the connecting end 101 of the boot foot 10. The assembly seat 11 is composed of two parallel vertical plates 110 arranged on the surface of the connecting end 101 at a distance, so that an assembly groove 111 is formed between the two vertical plates 110, and an axial hole is opened at the upper end of the two vertical plates 110.

[0041] When the shoe foot 10 is installed, the connecting end 101 of the shoe foot 10 extends into the pile hole of the pile leg 2. An assembly block 22 is provided on the inner hole wall of the pile leg 2. The assembly block 22 also has an axial hole. The assembly block 22 is embedded in the assembly groove 111 of the assembly seat 11, and the axial holes of the two are coaxially aligned. Then, the assembly block 22 is movably connected to each other via the rotating shaft 13, thereby realizing the movable connection between the connecting end 101 of the shoe foot 10 and the pile leg 2. The flip end 102 of the shoe foot 10 extends away from the pile leg 2, and the shoe foot 10 flips up and down at the lower end of the pile leg 2 with the rotating shaft 13 as the center.

[0042] Usually, the up and down flipping angle range of the boot foot 10 is set to 90 degrees. Therefore, a right-angled limiting portion 220 is provided at the end close to the assembly block 22 and the assembly groove 111. When the flipping end 102 of the boot foot 10 flips downward to the bottom of the pile leg 2, that is, the boot foot 10 flips downward to a vertical position, the bottom 1110 of the assembly groove 111 is fitted into the limiting portion 220 of the assembly block 22, thereby preventing the boot foot 10 from continuing to flip in the other direction, thereby limiting the extreme angle of the boot foot 10 flipping downward.

[0043] The reinforcing rib 12 is disposed on the surface of the boot foot 10 and extends from the connection end 101 of the boot foot 10 to the turning end 102. One end of the reinforcing rib 12 is flush with the connection end 101 of the boot foot 10, and the other end of the reinforcing rib 12 does not extend to the end of the turning end 102. The side height of the end of the reinforcing rib 12 extending to the connection end 101 is higher than the side height of the end of the reinforcing rib 12 extending to the turning end 102. The above design of the reinforcing rib 12 can reduce the weight of the turning end 102 of the boot foot 10 and reduce the underwater pressure on the turning end 102 of the boot foot 10, thereby improving the turning flexibility of the turning end 102 of the boot foot 10.

[0044] A limiting opening 21 is provided at the lower end of the pile leg 2, and the limiting opening 21 is opened upward from the lower end of the pile leg 2. When the flip end 102 of the boot foot 10 flips upward to be perpendicular to the pile leg 2, the upper edge of the reinforcing rib 12 is embedded in the limiting opening 21 of the pile leg 2, which can not only limit the maximum angle of the boot foot 10 flipping upward, but also stabilize the reinforcing rib 12 on the boot foot 10 through the limiting opening 21 of the pile leg 2, thereby improving the stability between the boot foot 10 and the pile leg 2 when the boot foot 10 is unfolded for use.

[0045] In the embodiment of the present application, two reinforcing ribs 12 are provided on each of the boot feet 10, and the two reinforcing ribs 12 are correspondingly provided on the left and right sides of the assembly seat 11, and the two reinforcing ribs 12 are correspondingly extended along the length directions of the two sides of the boot foot 10, so that the structural strength of the boot foot 10 and the stability of the connection structure with the pile leg 2 are improved through the arrangement of the reinforcing ribs 12.

[0046] Alternatively, two assembly seats 11 are provided, and the reinforcing rib 12 is provided in the middle of the boot foot 10, and the reinforcing rib 12 extends from the connecting end 101 of the boot foot 10 to the flipping end 102. The two assembly seats 11 are provided on the left and right sides of the reinforcing rib 12. By increasing the connection between the assembly seat 11 and the pile leg 2, the stability between the boot foot 10 and the pile leg 2 when it is unfolded for use can be improved.

[0047] A right-angled brace 103 is provided between the reinforcing rib 12 and the side of the shoe leg 10. The lower end of the pile leg 2 has a bottom plate 23 extending toward the center of the pile hole. This bottom plate 23 is located on the inner wall of the pile leg 2. Several bottom plates 23 are provided and are evenly spaced along the inner wall of the pile leg 2. When the flip end 102 of the shoe leg 10 flips upward to be perpendicular to the pile leg 2, the bottom plate 23 of the pile leg 2 can press down on the right-angled brace 103. In other words, two adjacent bottom plates 23 support the right-angled brace 103 on the left and right sides of the shoe leg 10, thereby strengthening the right-angle coordination between the shoe leg 10 and the pile leg 2.

[0048] In this way, the embodiment of the present application provides a flip-up pile shoe 1. When the pile shoe 1 is installed at the lower end of the pile leg 2, the connecting end 101 of the shoe foot 10 is movably connected to the pile leg 2 through the assembly seat 11, and the flipping end 102 of the shoe foot 10 can be flipped up and down with the connection between the assembly seat 11 and the pile leg 2 as the center point. It has a simple structure and is easy to install and maintain, saving components such as connecting rods, slide grooves and limit grooves used in the past, thereby reducing the manufacturing cost of the pile shoe 1.

[0049] When the pile leg 2 is lowered and installed on the seabed, as the pile leg 2 gradually sinks, the flip end 102 first contacts the seabed and flips outward along the seabed until the boot foot 10 and the pile leg 2 are perpendicular to each other. At this time, several boot feet 10 are spread out around the pile leg 2, and the lower end of the pile leg 2 and the boot foot 10 are upright on the seabed, thereby increasing the contact area between the pile leg 2 and the seabed, and improving the stability of the pile leg 2 in positioning and installation on the seabed, without the need for gaskets as before.

[0050] When lifting the pile leg 2, as the pile leg 2 gradually rises, the boot foot 10 and the pile leg 2 are both separated from the seabed, and then the boot foot 10 is acted upon by its own weight, and the flip end 102 flips downward to just below the lower end of the pile leg 2. Compared with the previous implementation method of setting a pile fixing device on the outside of the pile leg 2, there are no redundant parts and structures around the pile leg 2, the lifting process of the pile leg 2 is smoother, and the construction process is safer; and in the lifting direction, only the pile leg 2 itself is in contact with the water, and there is no need to bear excessive water pressure when lifting the pile leg 2, thereby reducing the lifting pressure of the pile leg 2 and improving construction efficiency and quality.

[0051] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A flip-up pile shoe for stabilizing pile legs, characterized in that: The pile shoe has a shoe foot and an assembly seat. There are a plurality of shoe feet, which are circumferentially arranged at the lower end of the pile leg. The shoe foot has a connecting end and a flip end. The assembly seat is arranged at the connecting end of the shoe foot, and the connecting end of the shoe foot is movably connected to the lower end of the pile leg through the assembly seat. The flip end of the boot foot extends away from the pile leg. When the flip end of the boot foot contacts the seabed, it flips outward as the pile leg gradually sinks until the boot foot and the pile leg are perpendicular to each other; and when the boot foot gradually rises with the pile leg, the flip end is flipped downward to just below the lower end of the pile leg due to the weight of the boot foot.

2. The flip-up pile shoe for stabilizing pile legs according to claim 1, characterized in that: The assembly seat is integrally formed and arranged on the surface of the connecting end of the boot foot. The assembly seat is composed of two vertical plates that are parallel and arranged on the surface of the connecting end at a distance, and an assembly groove is formed between the two vertical plates; the connecting end of the boot foot extends into the pile hole of the pile leg, and the inner hole wall of the pile leg is provided with an assembly block, which is embedded in the assembly groove of the assembly seat and is movably connected to each other through a rotating shaft.

3. The flip-up pile shoe for stabilizing pile legs according to claim 2, characterized in that: A limiting portion is provided at the end adjacent to the assembly block and the assembly groove. When the flip end of the boot foot flips downward to just below the pile leg, the bottom of the assembly groove fits into the limiting portion of the assembly block.

4. The flip-up pile shoe for stabilizing pile legs according to claim 1, characterized in that: The end of the flip end of the boot foot is set to be arc-shaped, and the width of the flip end of the boot foot is greater than the width of the connecting end, so that the width of the boot foot is gradually narrowed from the flip end to the connecting end.

5. The flip-up pile shoe for stabilizing pile legs according to claim 4, characterized in that: When the flip end of the shoe foot is unfolded and perpendicular to the pile leg, the end radius of the flip end is greater than twice the outer surface radius of the pile leg.

6. The flip-up pile shoe for stabilizing pile legs according to any one of claims 1 to 5, characterized in that: The boot foot is provided with a reinforcing rib, which stands on the side of the boot foot and extends from the connecting end to the flipping end of the boot foot; a limiting opening is provided at the lower end of the pile leg, and when the flipping end of the boot foot is flipped upward to be perpendicular to the pile leg, the upper edge of the reinforcing rib is embedded in the limiting opening of the pile leg.

7. The flip-up pile shoe for stabilizing pile legs according to claim 6, characterized in that: The reinforcing ribs are provided in two pieces and are correspondingly provided on the left and right sides of the assembly seat, and the two reinforcing ribs are correspondingly extended along the length direction of the two sides of the boot foot.

8. The flip-up pile shoe for stabilizing pile legs according to claim 6, characterized in that: There are two assembly seats, the reinforcement rib is arranged in the middle of the boot foot, and the two assembly seats are arranged on the left and right sides of the reinforcement rib.

9. The flip-up pile shoe for stabilizing pile legs according to claim 6, characterized in that: A right-angle support portion is provided between the reinforcing rib and the side of the boot foot, and the lower end of the pile leg has a bottom plate extending toward the middle of the pile hole. When the flip end of the boot foot flips upward to be perpendicular to the pile leg, the right-angle support portion supports the bottom plate.

10. The flip-up pile shoe for stabilizing pile legs according to claim 9, characterized in that: The bottom plate is arranged on the inner wall of the pile leg. Several bottom plates are arranged equidistantly along the inner wall of the pile leg. Two adjacent bottom plates are correspondingly supported on the right-angle support parts on the left and right sides of the boot foot.

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