CN113338348A - Foundation pile anti-scouring device for ocean currents - Google Patents

Abstract

The invention provides a foundation pile anti-scouring device for ocean currents, which comprises a foundation pile with a low bearing platform, wherein the foundation pile comprises a bearing platform and a pile rod, the top of the bearing platform is higher than the surface of a seabed and is of a round platform structure, and the pile rod extends upwards along the middle of the bearing platform and is connected with a streamline protection pier component; streamlined protection mound subassembly includes streamlined protection mound, fin, streamlined protection mound cover is located on the stake pole, streamlined protection mound rear end is connected with moves the pole, move the tailstock that pole external connection has, it is a plurality of the fin sets firmly on the tailstock outer wall. The streamline-shaped protection pier is sleeved on the pile rod of the power generation pile and is in an oval shape, the tail wing is connected with the pile rod through the moving rod, the streamline-shaped protection pier, the moving rod and the tail wing are combined into an asymmetric structure, the adjusting device can rotate along with the direction of ocean current, and turbulence is reduced to reduce scouring.

Description

Foundation pile anti-scouring device for ocean currents

Technical Field

The invention relates to the technical field of foundation pile anti-scouring, in particular to a foundation pile anti-scouring device for ocean currents.

Background

Under the large background that the petroleum coal energy consumption in the world is getting larger and the global living environment is getting worse, the wind power generation, especially the offshore wind power generation, as the renewable clean energy has the advantages of abundant resources, high electricity generation utilization hours, no land occupation, power grid close to high-load seaside areas, suitability for large-scale development and the like, and is more and more paid high attention by countries in the world.

In recent years, the global wind power generation industry develops very rapidly, the development prospect is considerable, the wind power generation technology is very important for all countries, the installed capacity of a wind turbine generator is continuously improved, and even under the large background of global economic decline, the increase rate of the integral wind power accumulation increment in the manufacturing industry is still far ahead.

In view of the current development, the offshore wind power foundation can be divided into 5 basic types from the structural form, namely a single-column structure, a three-leg structure, a four-leg structure, a gravity structure and a floating structure. The first three belong to pile foundation structures. The maximum water depth of the applied pile foundations is typically around 80 m. Gravity type structures and floating structures are rarely adopted at present because the cost of the gravity type structures is too high, although the water depth of the floating structures can reach 900m, the water depth of wind power plants in the world is basically within 45m, and the large-scale use of the floating structures needs a quite long period of time. Therefore, at present and for some time later, the foundation structures for the application and research of offshore wind power generation should be mainly pile foundations. Therefore, the main research object of the offshore wind power foundation is the pile foundation.

The proportion of damage of the generator set due to the supporting structure mainly based on the foundation is the largest and reaches 18%, so that the bearing property of the pile foundation supporting structure system under the action of periodic loads such as wind, waves and the like is researched. The tower, the pile foundation and the seabed foundation are regarded as a system, namely a pile foundation supporting structure system, and the structural optimization, the dynamic response and the fatigue problem of the structural system under the action of various loads on the sea are mainly researched. The single pile is convenient to install and does not need to clean up the seabed, but it needs to prevent the sea current from scouring the seabed. After the single pile is built, ocean currents can wash the single pile and form a horseshoe vortex or a tail vortex behind the single pile to roll away silt of the single pile, the single pile cannot be installed on a returning bed made of boulders, and the silt on the seabed is low in viscosity, so that a washing pit is easily formed on the periphery of the single pile to reduce the stability of a single pile structure. Therefore, it is necessary to consider reducing the formation of the horseshoe vortex or the wake vortex or changing the formation position of the wake vortex, and to reinforce the stability of the single pile.

Therefore, the anti-scouring device for the foundation pile for ocean current is designed. The research can provide guidance and basis for the accelerated development of offshore wind power generation and economic and safe operation of the offshore wind power generation in China, and has important theoretical significance and practical value.

Disclosure of Invention

The object of the present invention is to provide an anti-scour arrangement for foundation piles against ocean currents that solves the problems mentioned in the background of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a foundation pile anti-scouring device for ocean currents comprises a foundation pile of a low bearing platform and a streamline protective pier assembly;

the foundation pile comprises a bearing platform and a pile rod, wherein the top of the bearing platform is higher than the surface of the seabed and is arranged in a circular truncated cone structure, and the pile rod is in a cylindrical structure and extends upwards along the middle part of the bearing platform;

streamlined protection mound subassembly includes streamlined protection mound, fin, streamlined protection mound cover is located on the stake pole and is connected the rotation rather than, streamlined protection mound rear end middle part is connected with moves the pole, it has the tailstock that is round platform type structure to move pole external connection, and is a plurality of the fin is the equidistant tailstock that sets firmly on the tailstock outer wall of annular.

Preferably, streamlined protection mound is inside hollow structure setting, streamlined protection mound is inside to be provided with the balancing weight keeping away from fin one end, the stake pole is in the cover is equipped with and can realize pivoted pressure pipe on the inside outer wall of streamlined protection mound, the pressure pipe leans on fin one side to be equipped with drive mechanism.

Preferably, the pressure pipe is integrally divided into two parts, an insertion groove is formed in the top of the pressure pipe located below, a limiting ring matched with the insertion groove is arranged at the bottom end of the pressure pipe located above, the bottom end of the insertion groove is annular and is uniformly embedded with a plurality of balls, the limiting ring extends into the insertion groove and is rotatably connected with the insertion groove, and the pressure pipe located below downwards penetrates through the streamline protection pier and extends to the position below the streamline protection pier.

Preferably, drive mechanism includes the pivot that sets up along the horizontal direction, the gear has been cup jointed at the pivot middle part, is located the top the pressure pipe is close to the vertical spout of having seted up in fin one side, the inside slidable elastic toothed plate that inlays of spout, the gear is connected with the elastic toothed plate meshing.

Preferably, the mutual symmetry in both sides of gear is provided with two bevel gear dish A, bevel gear dish A cover is located in the pivot and is connected rather than rotating, bevel gear dish A inboard is equipped with cup joints fixed ratchet, two with the pivot ratchet parallel arrangement, be equipped with a ratchet meshing's auxiliary tooth on the bevel gear dish A inner wall.

Preferably, drive mechanism still includes the connecting rod, the connecting rod sets up in pivot one side perpendicularly, connecting rod one end is fixed with bevel gear dish B, bevel gear dish B meshes with two bevel gear dish A simultaneously, connecting rod one end is passed and is moved the pole middle part and extend to the tailstock inside and be connected fixedly with the tailstock, the connecting rod with move the pole and rotate and be connected.

Preferably, the device also comprises an anti-impact base component;

the anti-impact base component comprises an anti-impact base and a buffer frame;

the utility model discloses a pile pole, including fender base, buffer frame, pressure pipe, cushion base, cushion frame, cushion base top surface and cushion frame, the fender base sets up in the cushion frame top surface, the stake pole passes the fender base and extends to its top, the fender base top surface is the slope structure setting, fender base one end is connected with the buffer frame, the buffer frame is the setting of inside hollow rectangle structure, buffer frame top surface and the contact of streamlined protection mound bottom surface, it is provided with the connecting pipe to dash the base top surface for the position of stake pole outer wall, the connecting pipe upwards is connected fixedly with streamlined protection mound bottom surface, there is the clearance in connecting pipe inner wall and stake pole, is located the below the pressure pipe along the clearance downwardly extending passes the fender base and contacts and fixes in the cushion frame top surface.

Preferably, the inside staggered distribution of buffer frame has a plurality of bracing pieces, every the bracing piece is equidistant to have set gradually a plurality of four leaf rotor plates, and is adjacent four adjacent leaf rotor plates on the bracing piece all staggered distribution set up, buffer frame and bracing piece vertically both ends all communicate with the outside.

Compared with the prior art, the invention provides an anti-scouring device for foundation piles aiming at ocean currents, which has the following beneficial effects:

(1) the invention provides an anti-scouring device for foundation piles of ocean currents, which provides an improved design for the problem that a marine power generation pile is subjected to the scouring action of the ocean currents to generate a scouring pit and influence the bearing capacity and the stability of the marine power generation pile, wherein the anti-scouring device comprises a streamline protection pier and an empennage, the streamline protection pier is sleeved on a pile rod of the power generation pile, the streamline protection pier is in an oval shape in a overlooking state, the radian of two end parts in the long axis direction of the streamline protection pier is smaller than the diameter of the pile rod, one end of the streamline protection pier is connected with the empennage through a movable rod, the anti-scouring structure is an asymmetric structure through the combination of the streamline protection pier, the movable rod and the empennage, the center of gravity is fixed on the pile rod, when the ocean current scouring process is carried out, one end part generating larger resistance to the water flow can rotate along the water, and because the end part of the streamline protection pier is smaller than the diameter of the pile rod and is arranged in an arc surface, the occurrence of turbulence can be reduced, therefore, the scouring is reduced, the streamline protective pier can be changed along with the direction of ocean current, water flow can always smoothly bypass the pile, and meanwhile, the water flow direction can be clearly displayed. The streamline protective pier designed by the invention can change along with the direction of ocean current, and the direction adjusting device reduces turbulence so as to reduce scouring.

(2) The tail wing has the streamline and radian design, the rotation of the tail wing can be realized under the condition of rapid water flow, in addition, the rotation of the tail wing is transmitted to the streamline protective pier through the connecting rod, and the connecting rod rotates in a single direction through the mutual connection and matching of the bevel gear disc A, the bevel gear disc B, the auxiliary teeth and the ratchet wheel before the tail wing is connected with the elastic toothed plate, and the downward force of the pressure pipe is realized through the downward meshing power of the elastic toothed plate so as to achieve the effect of stabilizing the bearing platform.

(3) The anti-impact base is directly contacted with the bearing platform and connected with the buffer frame, the top anti-impact base is cut into the inclined plane, a large amount of ocean currents flowing on the anti-impact base can be received, in addition, the buffer frame is internally provided with the plurality of fixed supporting rods and the four-blade rotating plates, the plurality of supporting rods and the four-blade rotating plates are arranged in a staggered mode, the number of the four-blade rotating plates is greatly increased, the four-blade rotating plates can rotate around the supporting rods, vortex generation of circulating water flow is avoided, in addition, the ocean currents flowing out of the buffer frame can form convection with wake vortex possibly generated on the rear side of the pile rod, and the formation of a flushing pit is reduced.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic diagram of the overall top view structure of the present invention;

FIG. 3 is a schematic view of the overall split structure of the present invention;

FIG. 4 is a schematic top view of the protective pier top section and the streamlined protective pier assembly of the present invention;

FIG. 5 is a schematic side sectional view of the protection pier and a structure of partial assembly disassembly according to the present invention;

FIG. 6 is a schematic diagram of a structure of the present invention showing a related structure of a rotating shaft and a disassembled related component;

fig. 7 is a schematic view of the disassembly structure of the components related to the side section of the impact-proof base and the top section of the buffer frame.

Description of the figure numbers: 1. foundation piles; 2. a bearing platform; 3. a pile rod; 4. a streamlined protective pier assembly; 401. Streamline protective piers; 402. a tail wing; 403. a tailstock; 404. a balancing weight; 405. a pressure pipe; 406. inserting grooves; 407. a limiting ring; 408. a ball bearing; 409. a rotating shaft; 410. a gear; 411. a chute; 412. an elastic toothed plate; 413. a bevel gear disc A; 414. a ratchet wheel; 415. Secondary teeth; 416. a connecting rod; 417. a bevel gear disc B; 418. a moving bar; 5. an anti-impingement base assembly; 501. an impact-resistant base; 502. a buffer frame; 503. a connecting pipe; 504. a support bar; 505. four rotating plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-3, an anti-scour apparatus for foundation piles for ocean currents comprises a low-platform foundation pile 1 and a streamlined protection pier assembly 4;

the foundation pile 1 comprises a bearing platform 2 and a pile rod 3, wherein the top of the bearing platform 2 is higher than the surface of the seabed and is arranged in a circular truncated cone structure, and the pile rod 3 is in a cylindrical structure and extends upwards along the middle part of the bearing platform 2;

streamlined protection mound subassembly 4 includes streamlined protection mound 401, fin 402, and streamlined protection mound 401 cover is located on stake pole 3 and is connected the rotation rather than, and streamlined protection mound 401 rear end middle part is connected with moves pole 418, moves pole 418 external connection and has the tailstock 403 that is round platform type structure, and a plurality of fin 402 are the equidistant tailstock 403 outer wall that sets firmly of annular.

The invention provides an anti-scouring device for foundation piles by ocean currents, and provides an improved design for solving the problem that a marine power generation pile is scoured by ocean currents to generate a scouring pit and influence the bearing capacity and stability of the marine power generation pile. Wherein, including streamlined protection mound subassembly 4, this subassembly has included streamlined protection mound 401 and fin 402, streamlined protection mound 401 cover is established on the stake pole 3 of power generation stake, streamlined protection mound 401 is oval shape under overlooking the state, two tip sizes on its streamlined protection mound 401 major axis direction are less than stake pole 3 diameter size, and be connected with fin 402 through moving pole 418 in this wherein one end, this scour prevention structure is through streamlined protection mound 401, move pole 418, the combination of fin 402 becomes the structure of an asymmetric shape, the gravity center point is fixed in on stake pole 3, when ocean current scouring process, the one end that produces great resistance to rivers just can be followed the water and rotate, because this tip of streamlined protection mound 401 is less than stake pole 3 diameters and for the cambered surface setting, can reduce the appearance of torrent, thereby reduce and erode. The streamline protective pier 401 designed by the invention can change along with the direction of ocean current, and the direction adjusting device reduces turbulence so as to reduce scouring.

According to the invention, the empennage 402, the moving rod 418 and the streamline protection pier 401 are matched to form a water flow direction indicator rotating around the pile rod 3, so that the formation of wake vortexes can be reduced by relieving water flow, and the observation and analysis of ocean current directions can be carried out.

In the invention, the rear end of the moving rod 418 is also connected with a circular truncated cone-shaped tailstock 403 for bearing the empennage 402, the empennages 402 are uniformly distributed and fixed on the tailstock 403 in an annular shape, wherein the tailstock 403 is rotatably connected with the moving rod 418, the streamline radian is increased when the empennage 402 is designed, and the direction of the extending moving rod 418 is in a state of being thin at the front and wide at the back, so that the rotation of the empennage 402 and the tailstock 403 can be realized under the condition of rapid and rapid water flow, in addition, the empennage 402 rotates at the side far away from the pile rod 3, and the flushing effect which is far smaller than the flushing effect generated by the water flow impacting the streamline protection pier 401 and the pile rod 3 is realized.

The long-axis distance of the streamline protection pier 401 is more than 3 times of the diameter of the pile rod 3, the end-axis distance of the streamline protection pier 401 is about 1.3-1.5 times of the diameter of the pile rod 3, the moving rod 418 and the tail fin 402 are shown for convenient observation, and the streamline protection pier can be prolonged and expanded in practical use.

Example 2:

referring to FIGS. 4-6, the embodiment 1 is different from the above embodiments; streamlined protection mound 401 is inside hollow structure setting, and streamlined protection mound 401 is inside to be provided with balancing weight 404 keeping away from fin 402 one end, and pile bar 3 overlaps on the inside outer wall of streamlined protection mound 401 to be equipped with can realize pivoted pressure pipe 405, and pressure pipe 405 leans on fin 402 one side to be equipped with drive mechanism.

The pressure pipe 405 is integrally divided into two parts, the top of the pressure pipe 405 below is provided with an insertion groove 406, the bottom end of the pressure pipe 405 above is provided with a limit ring 407 adapted to the insertion groove 406, the bottom end of the insertion groove 406 is annular and is uniformly embedded with a plurality of balls 408, the limit ring 407 extends into the insertion groove 406 and is rotatably connected with the insertion groove 406, and the pressure pipe 405 below downwards penetrates through the streamline-shaped protection pier 401 and extends to the lower part of the streamline-shaped protection pier.

In the invention, the interior of the streamline protection pier 401 is designed to be hollow, the balancing weight 404 and the transmission mechanism are added in the streamline protection pier 401, the balancing weight 404 is used for ensuring the quality and stability of the streamline protection pier 401, and the transmission mechanism conducts kinetic energy generated by the rotation of the tail fin 402. After the interior of the streamline-shaped protection pier 401 is hollow, a pressure pipe 405 is arranged around a pile rod 3 on the streamline-shaped protection pier 401, wherein the pressure pipe 405 extends downwards and is fixedly connected with a bearing platform 2, the pressure pipe 405 is rotatably connected with the pile rod 3, the pressure pipe 405 can rotate conveniently without affecting the bearing platform 2, the pressure pipe 405 is divided into two parts, the pressure pipe 405 positioned above the pressure pipe penetrates through the streamline-shaped protection pier 401 to extend to the lower part of the streamline-shaped protection pier 401 and is fixedly connected with the streamline-shaped protection pier, the upper pressure pipe 405 and the lower pressure pipe 405 are connected through the matching rotation of a limiting ring 407 and an insertion groove 406, the limiting ring 407 is in contact with a ball 408 in the insertion groove 406 after being inserted into the insertion groove 406, the embedded ball 408 can rotate by itself, and the friction force of the limiting ring 407 and the insertion groove 406 in rotating connection is reduced.

Example 3:

referring to FIGS. 4-6, the embodiment 1-2 is different therefrom; the transmission mechanism comprises a rotating shaft 409 which is vertical to the streamline protection pier 401 along the horizontal direction, a gear 410 is sleeved in the middle of the rotating shaft 409, a pressure pipe 405 located above is vertically provided with a sliding groove 411 close to one side of the tail wing 402, a slidable elastic toothed plate 412 is embedded in the sliding groove 411, and the gear 410 is meshed with the elastic toothed plate 412.

Two bevel gear discs A413 are symmetrically arranged on the left side and the right side of the gear 410, the bevel gear discs A413 are sleeved on the rotating shaft 409 and are in rotating connection with the rotating shaft 409, ratchet wheels 414 fixedly sleeved with the rotating shaft 409 are arranged on the inner sides of the bevel gear discs A413, the two ratchet wheels 414 are arranged in parallel, and an auxiliary tooth 415 meshed with the ratchet wheels 414 is arranged on the inner walls of the bevel gear discs A413.

The transmission mechanism further comprises a connecting rod 416, the connecting rod 416 is vertically arranged on one side of the rotating shaft 409, a bevel gear disk B417 is fixed at one end of the connecting rod 416, the bevel gear disk B417 is meshed with two bevel gear disks A413 at the same time, one end of the connecting rod 416 penetrates through the middle of the moving rod 418 to extend into the tailstock 403 and is fixedly connected with the tailstock 403, and the connecting rod 416 is rotatably connected with the moving rod 418.

The transmission mechanism of the invention is that a hole is formed in the inner part of a moving rod 418, a connecting rod 416 penetrates through the hole, one end of the connecting rod 416 extends into the inner part of a tailstock 403 and is fixedly connected with the tailstock 403, the other end of the connecting rod 416 extends into the inner part of a streamline protection pier 401 and is fixedly provided with a bevel gear disc B417, bearings are connected between the connecting rod 416 and the tail seat when the connecting rod 416 is rotatably connected in the inner part of the moving rod 418, the friction force of the rotary connection of the connecting rod 416 and the tail seat is reduced, and the position of the connecting rod 416 extending into the streamline protection pier 401 is suspended and is supported by the bearing support to increase the stability.

The invention is provided with a rotating shaft 409 vertical to a connecting rod 416, two mutually symmetrical bevel gear discs A413 are connected on the rotating shaft 409 in a sliding way, a ratchet wheel 414 fixed with the rotating shaft 409 is arranged at the inner side of the bevel gear disc A413, one side of the bevel gear disc A413 close to the ratchet wheel 414 is connected with a fixed U-shaped groove, a spring A is arranged in the U-shaped groove and is connected with an auxiliary tooth 415 through the spring A, so that the auxiliary tooth 415 is movably arranged, the unidirectional meshing with the ratchet wheel 414 can be realized, the reverse mutual rotating contact matching can be controlled, the two ratchet wheels 414 are arranged in a central symmetrical structure, a bevel gear disc B417 is simultaneously meshed with the two bevel gear discs A413, the rotating shaft 409 is stable and immovable in the process that the bevel gear disc B417 drives the two bevel gear discs A413 to synchronously rotate, one of the auxiliary tooth 415 is meshed with the ratchet wheel 414, the rotation of the ratchet wheel 414 can be realized, and the rotating shaft 409 can be realized, and because two ratchet wheels 414 are arranged in parallel, bevel gear discs a413 rotate in opposite directions in the rotating process, and two secondary teeth 415 also rotate in opposite directions, so that only one secondary tooth 415 is meshed with the ratchet wheels 414 no matter how the connecting rod 416 rotates, the rotating shaft 409 only rotates in a single direction, and the rotating shaft 409 is sleeved with a gear 410 which can be meshed with the elastic toothed plate 412.

The tail wing 402 of the invention has the design of streamline and radian, can realize autorotation under the condition of water flow rapidness, in addition, the rotation of the tail wing 402 is transmitted to the streamline protective pier 401 through the connecting rod 416, and the connecting rod 416 rotates unidirectionally through the mutual connection and matching of the bevel gear disc A413, the bevel gear disc B417, the auxiliary tooth 415 and the ratchet 414 before being connected with the elastic toothed plate 412, and the downward meshing power of the elastic toothed plate 412 is always kept.

According to the invention, the part of the pressure pipe 405, which is positioned above and is right opposite to the gear 410, is cut into a flat rectangular surface, a limit sliding groove for clamping the elastic toothed plate 412 is formed in the position, the elastic toothed plate 412 can slide up and down along the limit sliding groove, the specific sliding of the elastic toothed plate 412 is acted by the force of the gear 410, wherein the elastic toothed plate 412 comprises a toothed plate and two racks, the racks are arranged on the upper side and the lower side of the toothed plate, the width of the racks is also larger than that of the toothed plate, two sliding rods extend out of the racks along the two sides of the toothed plate in the direction towards the toothed plate, the toothed plate is externally provided with a limit seat through which the sliding rods can pass and realize sliding, the outer wall of each sliding rod is provided with a spring B, and the two ends of the spring B are respectively connected to the limit seat and the racks, so that the toothed plate and the racks are movably connected, after the gear 410 is meshed with the elastic toothed plate 412, the gear 412 slides down to the bottom end of the limit sliding groove, and the gear 410 is repeatedly meshed with the racks to ensure that the mechanical transmission is effectively carried out.

Example 4:

referring to FIG. 7, the embodiment 1-3 is different; also comprises an anti-impact base component 5;

the anti-impact base component 5 comprises an anti-impact base 501 and a buffer frame 502;

scour protection base 501 sets up in 2 top surfaces of cushion cap, stake pole 3 passes scour protection base 501 and extends to its top, scour protection base 501 top surface is the slope structure setting, scour protection base 501 one end is connected with buffer frame 502, buffer frame 502 is the setting of inside hollow rectangle structure, buffer frame 502 top surface and the contact of streamlined protection mound 401 bottom surface, scour protection base 501 top surface is provided with connecting pipe 503 for the position of 3 outer walls of stake pole, connecting pipe 503 upwards is connected fixedly with streamlined protection mound 401 bottom surface, there is the clearance connecting pipe 503 inner wall and stake pole 3, pressure pipe 405 that is located the below extends downwards along the clearance and passes scour protection base 501 in the contact of 2 top surfaces of cushion cap and fix.

A plurality of supporting rods 504 are distributed in the buffer frame 502 in a staggered mode, a plurality of four-blade rotating plates 505 are sequentially and equidistantly arranged on each supporting rod 504 in a rotating mode, the four adjacent rotating plates 505 on the adjacent supporting rods 504 are all distributed in a staggered mode, and two ends, perpendicular to the supporting rods 504, of the buffer frame 502 are communicated with the outside.

In the invention, the streamline protection pier 401 is not arranged on the top surface of the bearing platform 2, the streamline protection pier 401 is moved upwards to enable the whole streamline protection pier component 4 to have more utilized space for arranging the empennage 402 and the moving rod 418, and the streamline protection pier 401 is more convenient to turn, so that the impact-proof base component 5 is additionally arranged between the streamline protection pier 401 and the bearing platform 2.

The scour protection base 501 on the scour protection base component 5 is directly contacted with the bearing platform 2 and is connected with the buffer frame 502 along the direction parallel to the moving rod 418, the scour protection base 501 cuts the top surface to form an inclined surface, the scour protection base 501 is lower than the buffer frame 502, ocean current flows along the inclined surface of the scour protection base 501 and flows into the buffer frame 502 after impacting the pile rod 3, the top surface of the buffer frame 502 is contacted with the bottom surface of the streamline protection pier 401 to largely receive the ocean current flowing on the scour protection base 501, in addition, a plurality of fixed support rods 504 are erected in the buffer frame 502, a plurality of four-blade rotating plates 505 are sequentially arranged on the support rods 504 and are arranged in a staggered mode, the four-blade rotating plates 505 on the adjacent support rods 504 are also arranged in a staggered mode, the arrangement quantity of the four-blade rotating plates 505 is increased, the four-blade rotating plates 505 can rotate around the support rods 504, the four-blade rotating plates 505 receive the ocean current and rotate freely, vortex is prevented from being generated by the circulating water flow, and in addition, convection can be formed between the ocean current flowing out of the buffer frame 502 and the possible wake vortex generated at the rear side of the pile rod 3, so that the formation of a flushing pit is reduced.

The top surface of the impact-proof base 501 is provided with a connecting pipe 503 around the outer side of the pile rod 3, the top end of the connecting pipe 503 is fixed with the streamline-shaped protective pier 401, the impact-proof base component 5 can be rotated together in the rotation process of the streamline-shaped protective pier 401, and the inclined surface of the impact-proof base 501 is ensured to be just opposite to the ocean current direction.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (8)

1. The utility model provides a foundation pile anti-scour device to ocean current which characterized in that: comprises a foundation pile (1) with a low bearing platform and a streamline protective pier component (4);

the foundation pile (1) comprises a bearing platform (2) and a pile rod (3), wherein the top of the bearing platform (2) is higher than the surface of the seabed and is arranged in a circular truncated cone structure, and the pile rod (3) is in a cylindrical structure and extends upwards along the middle of the bearing platform (2);

streamlined protection mound subassembly (4) are including streamlined protection mound (401), fin (402), streamlined protection mound (401) cover is located on stake pole (3) and is connected the rotation rather than, streamlined protection mound (401) rear end middle part is connected with moves pole (418), move pole (418) external connection and have tailstock (403) that are round platform type structure, it is a plurality of fin (402) are equidistant the annular and set firmly on tailstock (403) outer wall.

2. An anti-scour apparatus for foundation piles for ocean currents, according to claim 1, wherein: streamlined protection mound (401) are inside hollow structure setting, streamlined protection mound (401) are inside to be provided with balancing weight (404) keeping away from fin (402) one end, stake pole (3) are in the cover is equipped with on the inside outer wall of streamlined protection mound (401) and can realize pivoted pressure pipe (405), pressure pipe (405) are leaned on fin (402) one side and are equipped with drive mechanism.

3. An anti-scour apparatus for foundation piles for ocean currents as claimed in claim 2, wherein: the pressure pipe (405) is integrally divided into two parts, an insertion groove (406) is arranged at the top of the pressure pipe (405) located below, a limiting ring (407) matched with the insertion groove (406) is arranged at the bottom end of the pressure pipe (405) located above, a plurality of balls (408) are uniformly embedded at the bottom end of the insertion groove (406) in an annular shape, the limiting ring (407) extends into the insertion groove (406) and is rotatably connected with the insertion groove, and the pressure pipe (405) located below downwards penetrates through the streamline protection pier (401) and extends to the lower side of the streamline protection pier.

4. An anti-scour apparatus for foundation piles for ocean currents as claimed in claim 2, wherein: drive mechanism includes pivot (409) that sets up along the horizontal direction, gear (410) have been cup jointed in pivot (409) middle part, are located the top pressure pipe (405) are close to fin (402) one side and have vertically seted up spout (411), the inside slidable elastic toothed plate (412) that is equipped with of spout (411) inlay, gear (410) are connected with elastic toothed plate (412) meshing.

5. An anti-scour apparatus for foundation piles for ocean currents according to claim 4, wherein: the mutual symmetry in both sides of gear (410) is provided with two bevel gear dish A (413), bevel gear dish A (413) cover is located pivot (409) and is connected rather than rotating, bevel gear dish A (413) inboard is equipped with and cup joints fixed ratchet (414), two with pivot (409) ratchet (414) parallel arrangement, be equipped with a ratchet (414) meshed auxiliary tooth (415) on bevel gear dish A (413) the inner wall.

6. An anti-scour apparatus for foundation piles for ocean currents according to claim 4, wherein: the transmission mechanism further comprises a connecting rod (416), the connecting rod (416) is vertically arranged on one side of the rotating shaft (409), a bevel gear disc B (417) is fixed to one end of the connecting rod (416), the bevel gear disc B (417) is meshed with two bevel gear discs A (413) at the same time, one end of the connecting rod (416) penetrates through the middle of the moving rod (418) to extend to the inside of the tailstock (403) and is fixedly connected with the tailstock (403), and the connecting rod (416) is rotatably connected with the moving rod (418).

7. An anti-scour foundation pile for ocean currents as claimed in claim 5, wherein: also comprises an anti-impact base component (5);

the anti-impact base assembly (5) comprises an anti-impact base (501) and a buffer frame (502);

the anti-impact base (501) is arranged on the top surface of the bearing platform (2), the pile rod (3) passes through the anti-impact base (501) and extends to the upper part of the anti-impact base, the top surface of the anti-impact base (501) is arranged in an inclined structure, one end of the anti-impact base (501) is connected with the buffer frame (502), the buffer frame (502) is arranged in a hollow rectangular structure, the top surface of the buffer frame (502) is contacted with the bottom surface of the streamline protective pier (401), a connecting pipe (503) is arranged at the position of the top surface of the punching base (501) relative to the outer wall of the pile rod (3), the connecting pipe (503) is upwards connected and fixed with the bottom surface of the streamline protective pier (401), a gap exists between the inner wall of the connecting pipe (503) and the pile rod (3), and the pressure pipe (405) located below extends downwards along the gap and penetrates through the anti-impact base (501) to be contacted and fixed on the top surface of the bearing platform (2).

8. An anti-scour foundation pile for ocean currents as claimed in claim 6, wherein: the buffer rack (502) is internally distributed with a plurality of supporting rods (504) in a staggered manner, each supporting rod (504) is sequentially provided with a plurality of four-blade rotating plates (505) at equal intervals, the adjacent four-blade rotating plates (505) on the supporting rods (504) are arranged in a staggered manner, and two ends, perpendicular to the supporting rods (504), of the buffer rack (502) are communicated with the outside.

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