Anti-scour device and anti-scour method for steel pipe pile

Abstract

The invention relates to the technical field of underwater buildings, and discloses a steel pipe pile anti-scour device and an anti-scour method.The steel pipe pile anti-scour device comprises two steel pipe columns and an anti-scour sleeve, gravity generated at the joint of the two steel pipe columns enables the anti-scour sleeve to be bent from the middle end, and the anti-scour sleeve gradually gets close to the steel pipe columns in the bending process, so that the anti-scour sleeve is bent. An anti-scouring sleeve drives a fixing shell to approach to the steel pipe column, the fixing shell drives a rotating rod to move, the rotating rod drives a sliding block to slide along the outer wall of a sliding groove through limiting of the sliding groove in a bent plate, the sliding block drives the fixing rod to move, the fixing rod drives a filter plate to move, and the filter plate drives a protective annular plate to move; the protective ring plate drives the flexible filter screen to move, and the flexible filter screen is in contact with the space between the steel pipe column and the anti-scouring sleeve in the moving process, so that impurities entering the steel pipe column and the anti-scouring sleeve are cleaned, and the anti-scouring effect of the steel pipe column is improved.

Description

Technical Field

[0001] The invention relates to the technical field of underwater construction, in particular to a steel pipe pile anti-scouring device and an anti-scouring method. Background Art

[0002] Steel pipe piles are widely used in marine and offshore projects such as cross-sea bridges, port terminals, offshore oil platforms and offshore wind turbines due to their high bearing capacity, good flexibility and fast construction speed, and have developed into an important foundation form for hydraulic structures. However, steel pipe piles often encounter many problems during use. Affected by ocean waves, currents, tides and other factors, steel pipe piles hinder the flow of seawater. The water on the upstream side flows downward, the flow rate accelerates, and a horseshoe-shaped vortex is formed; the tail vortex is formed due to the circumferential flow of seawater on the dorsifluctuation side. When the seabed surface is mainly sandy soil, the horseshoe-shaped vortex and the tail vortex cause the soil around the pile to surge, sand excavation occurs, and a large scour pit is formed. The formation of the scour pit reduces the depth of the pile into the soil, the friction resistance on the pile side and the resistance of the soil on the pile side are lost, and ultimately the horizontal and vertical bearing capacity of the pile foundation is reduced, affecting the installation stability.

[0003] Existing scour protection usually involves setting up a wrapped anti-scour cover to protect two butted steel pipe columns from scour. The anti-scour cover and the steel pipe columns are placed horizontally at the bottom of the riverbed. However, during the long-term flow of water, the scouring of the water will make the soil at the bottom of the anti-scour cover soft. At this time, the butt joint of the two steel pipe columns will sink, causing the anti-scour cover to bend, affecting the anti-scour effect of the anti-scour cover on the steel pipe columns. Summary of the invention

[0004] The object of the present invention is to provide a steel pipe pile anti-scouring device and an anti-scouring method to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention relates to a steel pipe pile anti-scour device and an anti-scour method, comprising a steel pipe column and an anti-scour sleeve, wherein two steel pipe columns are provided, the two steel pipe columns are arranged inside the anti-scour sleeve, eight bent rods are fixedly connected to the two sides of the anti-scour sleeve respectively, and an anti-scour stabilizing mechanism is also included, the anti-scour stabilizing mechanism comprises a bent plate fixedly connected to one end of the bent rod away from the anti-scour sleeve, a sliding groove is provided on one side of the bent plate, a sliding block is slidably connected to the inner wall of the sliding groove, one end of the sliding block is rotatably connected to a rotating rod, the end of the rotating rod away from the sliding block is rotatably connected to a fixed shell, the side wall of the fixed shell is fixedly connected to the inner wall of the anti-scour sleeve, and the side wall of the sliding block is provided with a filtering component.

[0007] Furthermore, the filter assembly includes a fixing rod fixedly connected to one side of the slider, an end of the fixing rod away from the slider is fixedly connected to a return spring, and an end of the return spring away from the fixing rod is fixedly connected to one side of the inner wall of the slide groove.

[0008] Furthermore, a filter plate is fixedly connected to a side wall at one end of the fixing rod, a protective ring plate is fixedly connected to an outer wall of the filter plate, and an outer wall of the protective ring plate is slidably connected to an inner wall of the anti-scour sleeve.

[0009] Furthermore, a flexible filter screen is fixedly connected to one end of the protective ring plate, four scrapers are fixedly connected to the inner wall of the filter plate, and the side of the scraper away from the filter plate is slidably connected to the outer wall of the steel pipe column.

[0010] Furthermore, an auxiliary component is provided on the side wall of the scraper, which includes a rotating plate rotatably connected to one side of the scraper, an end of the rotating plate away from the scraper is rotatably connected to a concave strip, two ends of one side of the concave strip are respectively fixedly connected to two arc rods, and a rubber block is fixedly connected to the side wall of one end of the arc rod.

[0011] Furthermore, a support assembly is provided on the side wall of the slider, and the support assembly includes a cross bar fixedly connected to a side of the slider away from the fixed rod, and one end of the cross bar penetrates the bent plate and extends to the outside of the bent plate.

[0012] Furthermore, one end of the cross bar away from the slider is fixedly connected to a circular ring plate, a round rod is fixedly connected to the center of one side of the circular ring plate, one end of the round rod away from the circular ring plate is fixedly connected to a support plate, and one side of the support plate away from the round rod is slidably connected to the inner wall of the anti-scour sleeve.

[0013] Furthermore, the side wall of the bent plate is provided with an impact assembly, which includes a sliding rod penetrating through and slidably connected to the side wall of the bent plate, and one end of the sliding rod is fixedly connected to the square plate.

[0014] Furthermore, a spring is fixedly connected to one side of the square plate close to the sliding rod, one end of the spring is fixedly connected to the side wall of the bent plate, and a rubber ball is fixedly connected to one end of the sliding rod away from the square plate.

[0015] An anti-scouring method for a steel pipe pile anti-scouring device comprises the following steps:

[0016] Step 1: The staff will butt the ends of the two steel pipe columns together. In this process, the ends of the two steel pipe columns will be inserted into the anti-scour sleeve, and then the steel pipe column and the anti-scour sleeve will be laid together. During the long working process, the scouring of water flow may loosen the soil at the bottom of the anti-scour sleeve;

[0017] Step 2: At this time, the gravity generated at the connection between the two steel pipe columns will cause the anti-scour sleeve to bend from the middle end. During the bending process, the anti-scour sleeve will gradually approach the steel pipe column. The anti-scour sleeve drives the fixed shell to approach the steel pipe column, and the fixed shell drives the rotating rod to move;

[0018] Step 3: Limited by the slide groove at the bent plate, the rotating rod drives the slider to slide along the outer wall of the slide groove, the slider drives the fixed rod to move, the fixed rod drives the filter plate to move, and the filter plate drives the protective ring plate to move;

[0019] Step 4: The protective ring plate drives the flexible filter to move. During the movement of the flexible filter, it will come into contact with the space between the steel pipe column and the anti-scour sleeve. During the movement of the filter plate, the filter plate drives the scraper to move, and the scraper will come into contact with the outer wall of the steel pipe column.

[0020] The present invention has the following beneficial effects:

[0021] (1) In the present invention, the staff connects the ends of the two steel pipe columns, inserts the ends of the two steel pipe columns into the interior of the anti-scour sleeve during this process, and then lays the steel pipe column together with the anti-scour sleeve. During the long-term working process, the scouring of water flow may loosen the soil at the bottom of the anti-scour sleeve. At this time, the gravity generated at the connection between the two steel pipe columns will cause the anti-scour sleeve to bend from the middle end. During the bending process, the anti-scour sleeve will gradually approach the steel pipe column. The anti-scour sleeve drives the fixed shell to approach the steel pipe column, and the fixed shell drives the rotating rod to move. The rotating rod is limited by the slide groove at the bending plate, and the sliding block is driven by the rotating rod along the outer wall of the slide groove. The slider drives the fixed rod to move, the fixed rod drives the filter plate to move, the filter plate drives the protective ring plate to move, the protective ring plate drives the flexible filter to move, and during the movement of the flexible filter, it will contact the space between the steel pipe column and the anti-scouring sleeve, thereby cleaning the impurities entering the steel pipe column and the anti-scouring sleeve, improving the anti-scouring effect of the steel pipe column, and during the movement of the filter plate, the filter plate drives the scraper to move, and during the movement of the scraper, it will contact the outer wall of the steel pipe column, scraping off the rust blocks that may be generated on the outer wall of the steel pipe column, preventing the rust blocks from hindering the operation of the device, and improving the operation effect of the device.

[0022] (2) According to the present invention, when the two scrapers move away from each other, the scrapers drive the rotating plate to move, the rotating plate drives the concave strip to approach the steel pipe column, the concave strip drives the arc rod to move, and the arc rod drives the rubber block to move. During the movement of the rotating rod, the entire rotating rod will gradually move toward the anti-scouring sleeve, and at the same time, the rubber block will contact the middle end side wall of the rotating rod during the movement. The rubber block squeezes the rotating rod, causing the rotating rod to rotate around the fixed shell. During the rotation of the rotating rod, the slider is driven to approach the joint of the two steel pipe columns, the slider drives the cross bar to move, the cross bar drives the annular plate to move, the annular plate drives the round rod to move, and the round rod drives the support plate to move. During the movement of the multiple support plates, the multiple support plates will gradually approach the middle end inner wall of the anti-scouring sleeve, thereby supporting the inner wall of the anti-scouring sleeve, so that the anti-scouring sleeve no longer performs bending movement, thereby improving the anti-scouring effect of the anti-scouring sleeve on the steel pipe column.

[0023] (3) According to the present invention, when the two flexible filter screens move away from each other, the flexible filter screens will contact the side wall of the rubber ball, and the flexible filter screen will squeeze the rubber ball, so that the rubber ball drives the sliding rod to move, the sliding rod drives the square plate to move, the square plate drives the spring to move, the spring elastically deforms, and when the spring is stretched, it elastically resets, the spring drives the square plate to move toward the bent plate, the sliding rod drives the rubber ball to move, and the rubber ball collides with the flexible filter screen during the movement, squeezing the flexible filter screen, the flexible filter screen drives the protective ring plate to move, the protective ring plate drives the filter plate to move, the filter plate drives the fixed rod to move, the fixed rod drives the slider to move, and the slider drives the support plate in the support assembly to move closer to the middle end of the inner wall of the anti-scouring sleeve, thereby improving the stability of the support plate supporting the anti-scouring sleeve, and laterally improving the anti-scouring effect of the anti-scouring sleeve on the steel pipe column.

[0024] (4) In the present invention, when the two flexible filter screens move away from each other, the flexible filter screens filter impurities in the water flow. During this process, the impurities will be stuck in the filter holes of the flexible filter screens. When the two flexible filter screens move closer to each other, the flexible filter screens will impact the clean water between the steel pipe column and the anti-scouring sleeve. The impact of the water flow will flush the filter holes of the flexible filter screen, thereby preventing impurities from being stuck in the filter holes of the flexible filter screen, thereby improving the filtering effect of the flexible filter screen on the water flow.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall side structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the steel pipe column of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the anti-scour sleeve of the present invention;

[0030] Figure 4 It is a schematic diagram of the side structure of the arc rod of the present invention;

[0031] Figure 5 It is a schematic diagram of the side structure of the flexible filter screen of the present invention;

[0032] Figure 6 For the present invention Figure 2 A magnified view of middle;

[0033] Figure 7 For the present invention Figure 4 Enlarged view of middle B;

[0034] Figure 8 For the present invention Figure 5 Enlarged view of middle C;

[0035] Fig. 9 It is a schematic diagram of the flow of the anti-scour method of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] In the figure: 1. steel pipe column; 2. anti-scour sleeve; 3. bent rod; 4. anti-scour stabilizing mechanism; 41. bent plate; 42. slide groove; 43. slider; 44. rotating rod; 49. fixed shell; 45. filter assembly; 46. auxiliary assembly; 47. support assembly; 48. impact assembly; 451. fixed rod; 452. filter plate; 453. protective ring plate; 454. flexible filter screen; 455. scraper; 456. return spring; 461. rotating plate; 462. concave strip; 463. arc rod; 464. rubber block; 471. cross bar; 472. circular ring plate; 473. round rod; 474. support plate; 481. sliding rod; 482. square plate; 483. spring; 484. rubber ball. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1, please refer to Figure 1 - Fig. 9 As shown, the present invention is a steel pipe pile anti-scour device and anti-scour method, comprising a steel pipe column 1 and an anti-scour sleeve 2, wherein two steel pipe columns 1 are provided, and the two steel pipe columns 1 are arranged inside the anti-scour sleeve 2, and eight bent rods 3 are fixedly connected to the two sides of the anti-scour sleeve 2 respectively, and further comprising;

[0040] The anti-scour stabilizing mechanism 4 includes a bent plate 41 fixedly connected to the end of the bent rod 3 away from the anti-scour sleeve 2, a slide groove 42 is provided on one side of the bent plate 41, a slider 43 is slidably connected to the inner wall of the slide groove 42, one end of the slider 43 is rotatably connected to a rotating rod 44, and the end of the rotating rod 44 away from the slider 43 is rotatably connected to a fixed shell 49, the side wall of the fixed shell 49 is fixedly connected to the inner wall of the anti-scour sleeve 2, and the side wall of the slider 43 is provided with a filter assembly 45.

[0041] The filter assembly 45 includes a fixed rod 451 fixedly connected to one side of the slider 43, and the end of the fixed rod 451 away from the slider 43 is fixedly connected to a return spring 456. The purpose of this setting is to reset. The end of the return spring 456 away from the fixed rod 451 is fixedly connected to one side of the inner wall of the slide groove 42.

[0042] A filter plate 452 is fixedly connected to the side wall of one end of the fixed rod 451, and a protective ring plate 453 is fixedly connected to the outer wall of the filter plate 452. The purpose of this arrangement is to prevent impurities in the water from entering the area between the steel pipe column 1 and the anti-scour sleeve. The outer wall of the protective ring plate 453 is slidably connected to the inner wall of the anti-scour sleeve 2.

[0043] One end of the protective ring plate 453 is fixedly connected with a flexible filter screen 454. The material of the flexible filter screen 454 is flexible and will undergo slight deformation. The deformation amplitude is small. The gravity generated at the connection between the two steel pipe columns 1 will cause the anti-scour sleeve 2 to bend from the middle end. During the bending process, the anti-scour sleeve 2 will gradually approach the steel pipe column 1. The anti-scour sleeve 2 drives the fixed shell 49 to approach the steel pipe column 1. The fixed shell 49 drives the rotating rod 44 to move. Limited by the slide groove 42 at the bent plate 41, the rotating rod 44 drives the slider 43 to slide along the outer wall of the slide groove 42. The slider 43 drives the fixed rod 451 to move, the fixed rod 451 drives the filter plate 452 to move, and the filter plate 452 drives the protective ring plate 453 to move. Plate 453 drives the flexible filter screen 454 to move. During the movement of the flexible filter screen 454, it will contact the space between the steel pipe column 1 and the anti-scouring sleeve 2, so as to clean the impurities entering the steel pipe column 1 and the anti-scouring sleeve 2, thereby improving the anti-scouring effect of the steel pipe column. Four scrapers 455 are fixedly connected to the inner wall of the filter plate 452 around each other. The scraper 455 is slidably connected to the outer wall of the steel pipe column 1 on the side away from the filter plate 452. During the movement of the filter plate 452, the filter plate 452 drives the scraper 455 to move. During the movement of the scraper 455, it will contact the outer wall of the steel pipe column 1, scrape off the rust blocks that may be generated on the outer wall of the steel pipe column 1, prevent the rust blocks from hindering the operation of the device, and improve the operation effect of the device.

[0044] In embodiment 2, the side wall of the scraper 455 is provided with an auxiliary component 46, and the auxiliary component 46 includes a rotating plate 461 rotatably connected to one side of the scraper 455, and the end of the rotating plate 461 away from the scraper 455 is rotatably connected to a concave strip 462, and two ends of one side of the concave strip 462 are respectively fixedly connected to two arc rods 463, and one end of the side wall of the arc rod 463 is fixedly connected to a rubber block 464.

[0045] A support assembly 47 is disposed on the side wall of the slider 43 . The support assembly 47 includes a cross bar 471 fixedly connected to a side of the slider 43 away from the fixing rod 451 . One end of the cross bar 471 passes through the bent plate 41 and extends to the outside of the bent plate 41 .

[0046] One end of the cross bar 471 away from the slider 43 is fixedly connected to a circular ring plate 472, a round rod 473 is fixedly connected to the center of one side of the circular ring plate 472, one end of the round rod 473 away from the circular ring plate 472 is fixedly connected to a support plate 474, and one side of the support plate 474 away from the round rod 473 is slidably connected to the inner wall of the anti-scour sleeve 2.

[0047] The side wall of the bent plate 41 is provided with an impact assembly 48 , which includes a sliding rod 481 penetrating through and slidably connected to the side wall of the bent plate 41 , and one end of the sliding rod 481 is fixedly connected to a square plate 482 .

[0048] A spring 483 is fixedly connected to one side of the square plate 482 close to the sliding rod 481, and one end of the spring 483 is fixedly connected to the side wall of the curved plate 41. A rubber ball 484 is fixedly connected to the end of the sliding rod 481 away from the square plate 482. When the spring 483 is stretched, it is elastically reset, and the spring 483 drives the square plate 482 to move toward the curved plate 41, and the sliding rod 481 drives the rubber ball 484 to move. During the movement, the rubber ball 484 collides with the flexible filter screen 454, squeezing the flexible filter screen 454, and the flexible filter screen 454 drives the protective ring plate 453 to move, and the protective ring plate 453 drives the filter plate 452 to move, and the filter plate 452 drives the fixed rod 451 to move, and the fixed rod 451 drives the slider 43 to move, and the slider 43 drives the support plate 474 in the support assembly 47 to approach the middle end of the inner wall of the anti-scouring sleeve 2, thereby improving the stability of the support plate 474 supporting the anti-scouring sleeve 2.

[0049] An anti-scouring method for a steel pipe pile anti-scouring device comprises the following steps:

[0050] Step 1: The staff connects the ends of the two steel pipe columns 1. In this process, the ends of the two steel pipe columns 1 are inserted into the anti-scour sleeve 2, and then the steel pipe column 1 and the anti-scour sleeve 2 are laid together. During the long working process, the scouring of water flow may loosen the soil at the bottom of the anti-scour sleeve 2;

[0051] Step 2: At this time, the gravity generated at the connection of the two steel pipe columns 1 will cause the anti-scour sleeve 2 to bend from the middle end. During the bending process, the anti-scour sleeve 2 will gradually get closer to the steel pipe column 1. The anti-scour sleeve 2 drives the fixed shell 49 to get closer to the steel pipe column 1, and the fixed shell 49 drives the rotating rod 44 to move;

[0052] Step 3: Limited by the slide groove 42 at the bent plate 41, the rotating rod 44 drives the slider 43 to slide along the outer wall of the slide groove 42, the slider 43 drives the fixed rod 451 to move, the fixed rod 451 drives the filter plate 452 to move, and the filter plate 452 drives the protective ring plate 453 to move;

[0053] Step 4: The protective ring plate 453 drives the flexible filter screen 454 to move. During the movement of the flexible filter screen 454, it will contact the space between the steel pipe column 1 and the anti-scour sleeve 2. During the movement of the filter plate 452, the filter plate 452 drives the scraper 455 to move. During the movement of the scraper 455, it will contact the outer wall of the steel pipe column 1.

[0054] During use, the staff connects the ends of the two steel pipe columns 1, inserts the ends of the two steel pipe columns 1 into the anti-scour sleeve 2 during this process, and then lays the steel pipe column 1 together with the anti-scour sleeve 2. During a long period of work, the scouring of water flow may loosen the soil at the bottom of the anti-scour sleeve 2. At this time, the gravity generated at the connection between the two steel pipe columns 1 will cause the anti-scour sleeve 2 to bend from the middle end. During the bending process, the anti-scour sleeve 2 will gradually approach the steel pipe column 1. The anti-scour sleeve 2 drives the fixed shell 49 to approach the steel pipe column 1, and the fixed shell 49 drives the rotating rod 44 to move. Limited by the slide groove 42 at the bending plate 41, the rotating rod 44 drives the slider 43 to slide along the outer wall of the slide groove 42, and the slider 43 drives The movable fixed rod 451 moves, the fixed rod 451 drives the filter plate 452 to move, the filter plate 452 drives the protective ring plate 453 to move, the protective ring plate 453 drives the flexible filter screen 454 to move, and during the movement of the flexible filter screen 454, it will contact the space between the steel pipe column 1 and the anti-scouring sleeve 2, so as to clean the impurities entering the steel pipe column 1 and the anti-scouring sleeve 2, thereby improving the anti-scouring effect of the steel pipe column, and during the movement of the filter plate 452, the filter plate 452 drives the scraper 455 to move, and during the movement of the scraper 455, it will contact the outer wall of the steel pipe column 1, scrape off the rust blocks that may be generated on the outer wall of the steel pipe column 1, prevent the rust blocks from hindering the operation of the device, and improve the operation effect of the device.

[0055] When the two scrapers 455 move away from each other, the scrapers 455 drive the rotating plate 461 to move, the rotating plate 461 drives the concave strip 462 to approach the steel pipe column 1, the concave strip 462 drives the arc rod 463 to move, and the arc rod 463 drives the rubber block 464 to move. As the rotating rod 44 moves, the entire rotating rod 44 will gradually move toward the anti-scouring sleeve 2. At the same time, the rubber block 464 will contact the middle end side wall of the rotating rod 44 during the movement, and the rubber block 464 will squeeze the rotating rod 44, so that the rotating rod 44 surrounds the fixed shell 4 9 is rotated, and the rotating rod 44 drives the slider 43 to approach the joint of the two steel pipe columns 1 during the rotation process, and the slider 43 drives the cross bar 471 to move, the cross bar 471 drives the annular plate 472 to move, the annular plate 472 drives the round rod 473 to move, and the round rod 473 drives the support plate 474 to move. During the movement of multiple support plates 474, they will gradually approach the middle end inner wall of the anti-scour sleeve 2, thereby supporting the inner wall of the anti-scour sleeve 2, so that the anti-scour sleeve 2 no longer performs bending movement, thereby improving the anti-scour effect of the anti-scour sleeve 2 on the steel pipe column 1.

[0056] When the two flexible screens 454 move away from each other, the flexible screen 454 will come into contact with the side wall of the rubber ball 484, and the flexible screen 454 will squeeze the rubber ball 484, so that the rubber ball 484 drives the sliding rod 481 to move, the sliding rod 481 drives the square plate 482 to move, the square plate 482 drives the spring 483 to move, and the spring 483 elastically deforms. When the spring 483 is stretched, it elastically resets, and the spring 483 drives the square plate 482 to move toward the bent plate 41, and the sliding rod 481 drives the rubber ball 484 to move. During the movement of 84, it collides with the flexible filter screen 454, squeezes the flexible filter screen 454, and the flexible filter screen 454 drives the protective ring plate 453 to move, the protective ring plate 453 drives the filter plate 452 to move, the filter plate 452 drives the fixed rod 451 to move, the fixed rod 451 drives the slider 43 to move, and the slider 43 drives the support plate 474 in the support assembly 47 to move closer to the middle end of the inner wall of the anti-scour sleeve 2, thereby improving the stability of the support plate 474 supporting the anti-scour sleeve 2, and laterally improving the anti-scour effect of the anti-scour sleeve 2 on the steel pipe column 1.

[0057] When the two flexible filter screens 454 move away from each other, the flexible filter screens 454 filter impurities in the water flow. During this process, the impurities will be stuck in the filter holes of the flexible filter screens 454. When the two flexible filter screens 454 move closer to each other, the flexible filter screens 454 will impact the clean water between the steel pipe column 1 and the anti-scour sleeve 2. The impact of the water flow will flush the filter holes of the flexible filter screen 454, thereby preventing impurities from being stuck in the filter holes of the flexible filter screen 454, thereby improving the filtering effect of the flexible filter screen 454 on the water flow.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steel pipe pile anti-scour device, characterized in that: It comprises a steel pipe column (1) and an anti-scour sleeve (2), wherein two steel pipe columns (1) are provided, and the two steel pipe columns (1) are arranged inside the anti-scour sleeve (2), and eight bent rods (3) are fixedly connected to both sides of the anti-scour sleeve (2), and further comprises: An anti-scour stabilizing mechanism (4), the anti-scour stabilizing mechanism (4) comprising a bent plate (41) fixedly connected to one end of a bent rod (3) away from the anti-scour sleeve (2), a slide groove (42) being provided on one side of the bent plate (41), a slider (43) being slidably connected to the inner wall of the slide groove (42), one end of the slider (43) being rotatably connected to a rotating rod (44), the end of the rotating rod (44) away from the slider (43) being rotatably connected to a fixed shell (49), the side wall of the fixed shell (49) being fixedly connected to the inner wall of the anti-scour sleeve (2), and a filter assembly (45) being provided on the side wall of the slider (43).

2. The anti-scouring device for steel pipe piles according to claim 1, characterized in that: The filter assembly (45) comprises a fixing rod (451) fixedly connected to one side of the slider (43); one end of the fixing rod (451) away from the slider (43) is fixedly connected to a return spring (456); and one end of the return spring (456) away from the fixing rod (451) is fixedly connected to one side of the inner wall of the slide groove (42).

3. The anti-scouring device for steel pipe piles according to claim 2, characterized in that: A filter plate (452) is fixedly connected to a side wall at one end of the fixing rod (451), a protective ring plate (453) is fixedly connected to an outer wall of the filter plate (452), and an outer wall of the protective ring plate (453) is slidably connected to an inner wall of the anti-scour sleeve (2).

4. The anti-scouring device for steel pipe piles according to claim 3, characterized in that: One end of the protective ring plate (453) is fixedly connected to a flexible filter screen (454), and four scrapers (455) are fixedly connected to the inner wall of the filter plate (452) on all sides thereof. The scrapers (455) are slidably connected to the outer wall of the steel pipe column (1) on a side away from the filter plate (452).

5. The anti-scouring device for steel pipe piles according to claim 4, characterized in that: The side wall of the scraper (455) is provided with an auxiliary component (46), and the auxiliary component (46) includes a rotating plate (461) rotatably connected to one side of the scraper (455), and one end of the rotating plate (461) away from the scraper (455) is rotatably connected to a concave strip (462), and two ends of one side of the concave strip (462) are respectively fixedly connected to two arc-shaped rods (463), and one end of the side wall of the arc-shaped rod (463) is fixedly connected to a rubber block (464).

6. The anti-scouring device for steel pipe piles according to claim 5, characterized in that: A support assembly (47) is provided on the side wall of the slider (43), and the support assembly (47) comprises a cross bar (471) fixedly connected to a side of the slider (43) away from the fixed rod (451), and one end of the cross bar (471) penetrates the bent plate (41) and extends to the outside of the bent plate (41).

7. The anti-scouring device for steel pipe piles according to claim 6, characterized in that: The end of the cross bar (471) away from the slider (43) is fixedly connected to a circular plate (472), the center of one side of the circular plate (472) is fixedly connected to a round rod (473), the end of the round rod (473) away from the circular plate (472) is fixedly connected to a support plate (474), and the side of the support plate (474) away from the round rod (473) is slidably connected to the inner wall of the anti-scour sleeve (2).

8. The anti-scouring device for steel pipe piles according to claim 7, characterized in that: The side wall of the bent plate (41) is provided with an impact assembly (48), and the impact assembly (48) comprises a sliding rod (481) penetrating through and slidably connected to the side wall of the bent plate (41), and one end of the sliding rod (481) is fixedly connected to a square plate (482).

9. The anti-scouring device for steel pipe piles according to claim 8, characterized in that: A spring (483) is fixedly connected to one side of the square plate (482) close to the sliding rod (481), one end of the spring (483) is fixedly connected to the side wall of the bent plate (41), and a rubber ball (484) is fixedly connected to one end of the sliding rod (481) away from the square plate (482).

10. An anti-scouring method for a steel pipe pile anti-scouring device, using the steel pipe pile anti-scouring device according to claim 9, characterized in that: The following steps are included: Step 1: The staff connects the ends of the two steel pipe columns (1) together. During this process, the ends of the two steel pipe columns (1) are inserted into the interior of the anti-scour sleeve (2). The steel pipe columns (1) and the anti-scour sleeve (2) are then laid together. During the long working process, the scouring of water flow may loosen the soil at the bottom of the anti-scour sleeve (2); Step 2: At this time, the gravity generated at the connection of the two steel pipe columns (1) causes the anti-scour sleeve (2) to bend from the middle end. During the bending process, the anti-scour sleeve (2) gradually moves closer to the steel pipe column (1). The anti-scour sleeve (2) drives the fixed shell (49) to move closer to the steel pipe column (1), and the fixed shell (49) drives the rotating rod (44) to move; Step 3: limited by the slide groove (42) at the bent plate (41), the rotating rod (44) drives the slider (43) to slide along the outer wall of the slide groove (42), the slider (43) drives the fixed rod (451) to move, the fixed rod (451) drives the filter plate (452) to move, and the filter plate (452) drives the protective ring plate (453) to move; Step 4: The protective ring plate (453) drives the flexible filter screen (454) to move. During the movement of the flexible filter screen (454), it will come into contact with the space between the steel pipe column (1) and the anti-scouring sleeve (2). During the movement of the filter plate (452), the filter plate (452) drives the scraper (455) to move. During the movement of the scraper (455), it will come into contact with the outer wall of the steel pipe column (1).

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