A root-knotted and firmly planted pile for wind farms with high bearing capacity

Abstract

The present invention relates to the technical field of foundation piles for wind farms, and specifically relates to a root knot disk pile for wind farms with high bearing capacity. It mainly aims at the problem that before the reinforcement is connected to the disk, it is necessary to additionally install a threaded head at the end of the reinforcement, resulting in a relatively high workload for the preliminary material preparation work. It includes a fixing frame, and at least two fixing rings are fixedly connected to the fixing frame. The fixing rings are provided with circumferentially distributed mounting holes, and uniformly distributed fixing blocks are fixedly connected in the mounting holes. The mounting holes are slidably connected with threaded steel, and the fixing blocks are used to limit the transverse ribs on the threaded steel. The present invention uses the mounting holes and the fixing blocks to fix the threaded steel instead of the traditional threaded bolts, without the need to additionally install a threaded head for the threaded steel, saving the workload and working time of the preliminary preparation work during the installation of the root knot disk pile, and increasing the speed of assembling the fixing ring and the threaded steel together, thereby increasing the speed of wind farm construction.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation piles for wind farms, and particularly to a root knot and coiled pile for wind farms with high bearing capacity. Background Art

[0002] Wind power generation equipment is huge in size, so it usually requires firmly installed foundation piles. Among them, the root knot and coiled pile is a kind of wind power foundation pile with high bearing capacity. The existing root knot and coiled piles are usually cast with reinforced concrete, and before casting, it is necessary to use steel bars (usually ribbed steel bars with strong bonding force with concrete) to piece together the overall framework of the root knot and coiled pile. There are usually multiple discs in the middle of the existing root knot and coiled piles for connecting steel bars from all directions. The ends of the steel bars connected to the discs need to be welded with threaded heads in advance. The steel bars are connected to the threaded holes on the discs through the threaded heads at the ends, thereby improving the comprehensive mechanical properties of the overall steel bar framework. However, since the threaded heads need to be welded manually at the ends of each steel bar in sequence, this will undoubtedly increase the workload of the preliminary material preparation work, resulting in the installation steps of the overall framework not being concise enough and affecting the overall progress of wind farm construction. Summary of the Invention

[0003] In order to overcome the drawback that before the existing steel bars are connected to the discs, it is necessary to additionally install threaded heads at the ends of the steel bars, resulting in a relatively high workload of the preliminary material preparation work, the present invention provides a root knot and coiled pile for wind farms with high bearing capacity.

[0004] The technical solution is as follows: A root knot and coiled pile for wind farms with high bearing capacity includes a fixing frame, and at least two fixing rings are fixedly connected to the fixing frame. The fixing rings are provided with circumferentially distributed mounting holes, and evenly distributed fixing blocks are fixedly connected in the mounting holes. The mounting holes are slidably connected with ribbed steel bars. The fixing blocks are used to limit the transverse ribs on the ribbed steel bars. A fixing mechanism for fixing adjacent ribbed steel bars on adjacent fixing rings is arranged in the fixing rings, and an anchoring mechanism for increasing the bearing capacity of the fixing rings is arranged on the ribbed steel bars.

[0005] Further explanation, the fixing mechanism includes an extrusion ring, the extrusion ring is slidably connected in the fixing ring, the extrusion ring is provided with circumferentially evenly distributed extrusion grooves, the extrusion grooves are aligned with the adjacent ribbed steel bars, and a driving component is arranged on the extrusion ring.

[0006] Further explanation, the extrusion groove is composed of a horizontal groove, an inclined groove and a vertical groove, and the horizontal groove, the inclined groove and the vertical groove are respectively used to extrude the ribbed steel bars in different bending states.

[0007] Further explanation: The driving component includes a threaded rod, which is rotatably connected to the extrusion ring. The fixed ring is fixedly connected with a mounting rod, and the mounting rod is equipped with a reduction box. The threaded rod is detachably connected to the output shaft of the reduction box. The threaded rod is threadedly connected to the fixed ring, and the input shaft of the reduction box is fixedly connected with a driving interface.

[0008] Further explanation: The anchoring mechanism includes a number of anchor rods, and all the anchor rods cross each other in pairs. The anchor rods are installed between the deformed steel bars, and the anchor rods are provided with friction components for increasing the friction between themselves and the hole wall.

[0009] Further explanation: The anchoring mechanism includes a number of anchor rods, and all the anchor rods cross each other in pairs. The anchor rods are installed between the deformed steel bars, and the anchor rods are provided with friction components for increasing the friction between themselves and the hole wall.

[0010] Further explanation: A semi-circular ring is fixedly connected to the intersection of the anchor rod and the adjacent anchor rod, and the adjacent two semi-circular rings limit each other.

[0011] Further explanation: The friction component includes a number of circumferentially distributed auxiliary fixing parts. The angle between the auxiliary fixing part and the axis of the anchor rod is less than 90°, and the auxiliary fixing part is inclined upward. The auxiliary fixing part includes a flexible part and a fixing part. The flexible part is located at the contact between the auxiliary fixing part and the anchor rod, and the fixing part is used to provide a supporting force to the flexible part.

[0012] Further explanation: It further includes a locking component arranged on the extrusion ring. The locking component is used to assist the extrusion ring in locking the deformed steel bar bent to the vertical state. The locking component includes a locking ring, which is rotatably connected inside the extrusion ring. The locking ring is fixedly connected with circumferentially evenly distributed limiting parts, and the limiting parts are used to limit the bent deformed steel bar. The locking ring is fixedly connected with an operating rod.

[0013] Further explanation: The fixed ring is fixedly connected with circumferentially evenly distributed guide blocks, and the guide blocks are used to limit the minimum bending radian of the adjacent deformed steel bars.

[0014] The beneficial effects of the present invention are as follows: The present invention uses the installation hole and the fixed clamping block to fix the deformed steel bar instead of the traditional threaded bolt, without the need to additionally install a threaded head for the deformed steel bar, saving the workload and working time of the preliminary preparation work during the installation of the root knot pile, and increasing the speed of assembling the fixed ring and the deformed steel bar, thereby increasing the speed of wind farm construction.

[0015] The present invention squeezes the deformed ribbed steel through a squeezing ring, thereby locking and fixing the ribbed steel, improving the fixing efficiency of the ribbed steel, increasing the connection strength between the ribbed steel and the fixing ring, and further increasing the overall stability of the root knot pile.

[0016] The present invention installs a semi-circular ring and an auxiliary fixing member on the anchor rod, increases the connection strength between the anchor rod and the underground rock, improves the anti-pulling ability of the device, and further improves the bearing capacity of the device.

[0017] The present invention further fixes the deformed ribbed steel through a limiting member, thereby reducing the working difficulty of the staff when assembling the ribbed steel. At the same time, the guiding block is used to guide the deformation of the ribbed steel, so that the deformed ribbed steel still maintains its own mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the fixing ring, ribbed steel and squeezing ring of the present invention;

[0020] Figure 3 is a sectional view of the fixing ring of the present invention;

[0021] Figure 4 is a three-dimensional structural schematic diagram of the fixing ring, mounting hole and fixing block of the present invention;

[0022] Figure 5 is a sectional view of the three-dimensional structure of the fixing ring and the squeezing ring of the present invention;

[0023] Figure 6 is a three-dimensional structural schematic diagram of the ribbed steel and the locking ring of the present invention;

[0024] Figure 7 is a three-dimensional structural schematic diagram of the squeezing ring, squeezing groove and fixing block of the present invention;

[0025] Figure 8 is a sectional view of the three-dimensional structure of the squeezing ring and the locking ring of the present invention;

[0026] Figure 9 is of the present invention Figure 1 The enlarged view at A in;

[0027] Figure 10 is a three-dimensional structural schematic diagram of the anchor rod, semi-circular ring and auxiliary fixing member of the present invention;

[0028] Figure 11 is a three-dimensional structural schematic diagram of the anchor rod, auxiliary fixing member and flexible part of the present invention.

[0029] Reference numerals: 1: fixing frame, 2: fixing ring, 21: mounting hole, 22: fixing block, 3: deformed steel bar, 4: extrusion ring, 41: extrusion groove, 411: horizontal groove, 412: inclined groove, 413: vertical groove, 42: fixing block, 5: threaded rod, 51: mounting rod, 6: reduction box, 61: driving interface, 7: locking ring, 71: limiting member, 72: operating rod, 73: guiding block, 8: anchor rod, 81: semi-circular ring, 9: auxiliary fixing member, 91: flexible part, 92: fixing part. Detailed implementation manners

[0030] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the present invention to those skilled in the art.

[0031] A root knot and coiled pile for a wind farm with high bearing capacity, as Figures 1-6 shown, includes a fixing frame 1, the fixing frame 1 is fixedly connected with at least two fixing rings 2, the fixing rings 2 are provided with circumferentially distributed mounting holes 21, uniformly distributed fixing blocks 22 are fixedly connected in the mounting holes 21, a deformed steel bar 3 is slidably connected in the mounting holes 21, the fixing blocks 22 are used for limiting the transverse ribs on the deformed steel bar 3, and a fixing mechanism for fixing adjacent deformed steel bars 3 on adjacent fixing rings 2 is arranged in the fixing rings 2, and an anchoring mechanism for increasing the bearing capacity of the fixing rings 2 is arranged on the deformed steel bar 3.

[0032] In the above solution, aiming at the problem that before connecting the existing steel bars to the disc, it is necessary to additionally install a threaded head at the end of the steel bar, resulting in a relatively high workload for the preliminary preparation of materials. In this solution, deformed steel bars without longitudinal ribs are mainly used. The fixing ring 2 can be a complete ring or can be spliced by two mutually fixedly connected semi-rings. The fixing ring 2 and the fixing frame 1 can be pre-assembled or assembled on site. The diameter of the mounting hole 21 is larger than the maximum outer diameter of the deformed steel bar 3 (i.e., the diameter including the threaded section). The fixing blocks 22 in the mounting hole 21 are divided into two rows up and down. The distance between the two rows of fixing blocks 22 in the vertical direction is equal to the minimum outer diameter of the deformed steel bar 3, and the distance between adjacent two fixing blocks 22 on the same horizontal plane is equal to the width of the transverse rib on the deformed steel bar 3. The fixing blocks 22 in the mounting hole 21 are used to limit the adjacent deformed steel bars 3 from being pulled out of the mounting hole 21 by force, and are mainly used for pre-fixing the end of the deformed steel bar 3.

[0033] Further explanation, as Figures 3-5 、 Figure 7 and Figure 8As shown, the fixing mechanism includes a pressing ring 4. The pressing ring 4 is slidably connected within the fixing ring 2. The pressing ring 4 is provided with circumferentially uniformly distributed pressing grooves 41. The pressing grooves 41 are aligned with the adjacent threaded steel bars 3. A driving assembly is provided on the pressing ring 4.

[0034] Further explanation, as Figure 7 and Figure 8 shown, the pressing groove 41 is composed of a horizontal groove 411, an inclined groove 412, and a vertical groove 413. The horizontal groove 411, the inclined groove 412, and the vertical groove 413 are respectively used to press the threaded steel bars 3 in different bending states.

[0035] Further explanation, as Figure 5 shown, uniformly distributed fixing blocks 42 are provided within the horizontal groove 411 of the pressing groove 41. The fixing blocks 42 are in pressing contact with the adjacent threaded steel bars 3.

[0036] In the above solution, it aims to propose a specific fixing mechanism for fixing the ends of adjacent threaded steel bars 3 on adjacent fixing rings 2. The number of pressing grooves 41 on the pressing ring 4 is equal to the number of mounting holes 21 on the adjacent fixing ring 2, and the pressing grooves 41 and the mounting holes 21 correspond one by one. In the initial state, as Figure 5 and Figure 6 shown, the pressing ring 4 is located above the adjacent mounting holes 21. The arrangement pattern of the fixing blocks 42 within the pressing grooves 41 is the same as the arrangement pattern of the upper row of fixing blocks 22 within the adjacent mounting holes 21. Therefore, when the transverse ribs on the threaded steel bar 3 can be inserted between two adjacent fixing blocks 22 within the mounting hole 21, the transverse ribs on the threaded steel bar 3 are synchronously inserted between two adjacent fixing blocks 42 on the adjacent pressing groove 41. The fixing blocks 42 are used to directly press the ends of the threaded steel bars 3, increasing the force-bearing area between the two when the pressing ring 4 presses the ends of the threaded steel bars 3 and causes them to bend. The horizontal groove 411 of the pressing groove 41 is used to press the ends of the horizontally placed threaded steel bars 3. The inclined groove 412 of the pressing groove 41 is used to press the ends of the inclined threaded steel bars 3. The vertical groove 413 of the pressing groove 41 is used to press the ends of the threaded steel bars 3 to the vertical state and fix the threaded steel bars 3.

[0037] Further explanation, as Figure 7 and Figure 8 shown, the driving assembly includes a threaded rod 5. The threaded rod 5 is rotatably connected to the pressing ring 4. The fixing ring 2 is fixedly connected with a mounting rod 51. A reduction gearbox 6 is installed on the mounting rod 51. The threaded rod 5 is detachably connected to the output shaft of the reduction gearbox 6. The threaded rod 5 is threadedly connected to the fixing ring 2. The input shaft of the reduction gearbox 6 is fixedly connected with a driving interface 61.

[0038] In the above solution, the speed reducer 6 in the drive assembly can be detached from the mounting rod 51, and two drive assemblies are provided on one fixing ring 2. Therefore, at least two speed reducers 6 are required for two fixing rings 2. The speed reducer 6 is a high-ratio speed reducer 6, which can be a gear speed reducer 6 or a worm and worm gear speed reducer 6. The drive interface 61 is a universal interface and can be connected to an external hydraulic motor or a high-torque device to provide power for bending the end of the threaded steel 3 downward through the external power. In this solution, a hydraulic motor is used to provide power (not shown in the figure). After use, both the speed reducer 6 and the hydraulic motor that provides power to it need to be removed from the fixing ring 2, thereby saving the device cost and improving the economic benefits of this device.

[0039] The working process is as follows: Before the staff prepares to install this device, first place the fixing frame 1 and the fixing ring 2 in the exact middle of the site. Subsequently, the staff prepares to insert multiple threaded steels 3 into the fixing ring 2 in sequence. First, the staff rotates the two rows of transverse ribs on the threaded steel 3 to the horizontal state, and then directly inserts the end of the threaded steel 3 into one mounting hole 21. When the threaded steel 3 is inserted to the inside of the extrusion ring 4, the staff stops inserting the threaded steel 3 and controls the rotation of the threaded steel 3. At this time, if the gap between the transverse rib on the threaded steel 3 and the adjacent two fixing blocks 22 is aligned, the staff rotates the threaded steel 3 by 90°, so that the transverse rib on it is screwed into the gaps between all the fixing blocks 22 on the mounting hole 21. The transverse rib on the threaded steel 3 located below the horizontal groove 411 of the extrusion groove 41 is simultaneously screwed into the gap between the adjacent two fixing blocks 42. The threaded steel 3 is fixed by the fixing blocks 22. When the threaded steel 3 is subjected to a force dragging it out of the mounting hole 21, it cannot slide out of the mounting hole 21.

[0040] If when the staff rotates the threaded steel 3, the transverse rib on the threaded steel 3 is not aligned with the gap between the adjacent two fixing blocks 22, at this time, because the transverse rib on the threaded steel 3 is squeezed by the adjacent fixing blocks 22 and cannot be rotated, the staff controls the threaded steel 3 to move forward and backward an appropriate distance and then repeats the above operation until the threaded steel 3 is rotated by 90°, and the fixing blocks 22 complete the fixation of the end of the threaded steel 3.

[0041] The staff repeats the above steps until the ends of all the ribbed steel bars 3 are inserted into the corresponding mounting holes 21 on the lower fixing ring 2. Subsequently, the staff installs the two speed reducers 6 on the two mounting rods 51 respectively, and then installs the two hydraulic motors on the two drive interfaces 61. The staff starts the two hydraulic motors simultaneously. The two hydraulic motors drive the adjacent drive interfaces 61 to rotate respectively. The speed reducer 6 transmits the power of its upper drive interface 61 to the threaded rod 5. The threaded rod 5 starts to rotate under force. During the rotation of the threaded rod 5, it moves downward through the thread and squeezes the extrusion ring 4 to move downward together. The extrusion ring 4 restricts the left-right swing of the end of the ribbed steel bar 3 through the extrusion groove 41 on it, and at the same time drives the extrusion groove 41 to squeeze the end of the ribbed steel bar 3 downward together.

[0042] When the material of the ribbed steel bar 3 used is relatively hard and has good resistance to bending, the ribbed steel bar 3 only undergoes slight deformation. At this time, during the downward movement of the extrusion ring 4, it locks and fixes the end of the ribbed steel bar 3 by squeezing the end of the ribbed steel bar 3.

[0043] When the anti-bending performance of the ribbed steel bar 3 used is weak, the end of the ribbed steel bar 3 is squeezed by the extrusion ring 4 and the extrusion groove 41 and gradually bends downward. During the deformation process of the end of the ribbed steel bar 3, the end of the ribbed steel bar 3 is gradually bent to an inclined state. At this time, the contact area between the end of the ribbed steel bar 3 and the horizontal groove 411 of the adjacent extrusion groove 41 on the extrusion ring 4 gradually decreases, but the contact area between the end of the ribbed steel bar 3 and the inclined groove 412 gradually increases. At this time, the inclined groove 412 squeezes the end of the ribbed steel bar 3 to continue to bend downward until the end of the ribbed steel bar 3 is bent by 90°. At this time, the end of the ribbed steel bar 3 enters the adjacent vertical groove 413. The staff turns off the hydraulic motor and removes the speed reducer 6 and the hydraulic motor from the mounting rod 51. At this time, the end of the ribbed steel bar 3 is limited by the adjacent vertical groove 413 and the mounting hole 21 and is completely locked in the fixing ring 2. When pouring cement, the fixing ring 2 and the surrounding ribbed steel bars 3 will form a firm meridian, thereby providing a more firm physical property to the cement base.

[0044] After the staff locks the ends of the lower fixing ring 2 and the surrounding ribbed steel bars 3, the ribbed steel bars 3 at other positions and in the upper fixing ring 2 are installed, and the ribbed steel bars 3 are gradually spliced into Figure 1 the shape shown, and the upper fixing ring 2 and the ends of the adjacent ribbed steel bars 3 are locked and fixed together according to the same steps. After completing the above steps, the staff reserves the holes required for the anchoring mechanism in the ribbed steel bars 3, and then pours cement into the area where the ribbed steel bars 3 are located. At the same time, the cement is cured according to the existing procedure. When the cement dries and becomes firm, the staff installs the anchoring mechanism into the reserved holes to complete the overall installation of this device.

[0045] Further explanation, as Figure 1 、 Figure 9 andFigure 10 As shown in the figure, the anchoring mechanism includes a number of anchor rods 8. All the anchor rods 8 cross each other in pairs. The anchor rods 8 are installed between the deformed steel bars 3, and the anchor rods 8 are provided with friction components for increasing the friction between themselves and the hole wall.

[0046] Further explanation, as Figure 9 and Figure 10 shown in the figure, a semi-circular ring 81 is fixedly connected at the intersection of the anchor rod 8 and the adjacent anchor rod 8, and the adjacent two semi-circular rings 81 limit each other.

[0047] Further explanation, as Figures 9-11 shown in the figure, the friction component includes a number of auxiliary fixing parts 9 distributed circumferentially. The included angle between the auxiliary fixing parts 9 and the axis of the anchor rod 8 is less than 90°, and the auxiliary fixing parts 9 are inclined upward. The auxiliary fixing parts 9 include a flexible part 91 and a fixing part 92. The flexible part 91 is located at the contact part between the auxiliary fixing part 9 and the anchor rod 8, and the fixing part 92 is used to provide a supporting force to the flexible part 91.

[0048] In the above solution, the number of groups of the anchor rods 8 is determined according to the actual situation. For example, when a larger root knot disk anchor pile of a wind power equipment needs to be made, more groups of anchor rods 8 need to be buried in the root knot disk anchor pile to increase the firmness of the root knot disk anchor pile; the semi-circular ring 81 is inclined relative to the anchor rod 8, and in the above solution, the holes reserved in the cement correspond to the required anchor rods 8 one by one. The anchor rods 8 in the same group cross each other at the same height from the ground. The flexible part 91 is made of flexible metal material (such as aluminum alloy material), and the fixing part 92 and the side of the auxiliary fixing part 9 away from the flexible part 91 are made of hard metal material (such as hard steel material).

[0049] The working process is as follows: After the cement dries, the staff uses a drilling device to drill downward through the reserved holes to facilitate inserting the anchor rods 8 into the ground. When the staff finishes drilling all the holes, the staff starts to insert the anchor rods 8 into the drill holes. Taking the components in Figure 10 as an example, when the staff inserts the anchor rod 8, the semi-circular ring 81 on the anchor rod 8 is rotated to the side away from the anchor rods 8 in the same group to avoid the collision of the two semi-circular rings 81. Then the staff inserts the two anchor rods 8 into the two drill holes respectively and makes the heights of the two anchor rods 8 protruding from the reserved holes in the cement equal. Then the staff rotates the two anchor rods 8. The rotation directions of the two anchor rods 8 are both counterclockwise (viewed from top to bottom). The anchor rod 8 drives the semi-circular ring 81 to rotate together. The two semi-circular rings 81 gradually cross each other after rotating half a circle, connecting the two anchor rods 8 together. At this time, the staff stops rotating the anchor rod 8.

[0050] When the staff inserts the anchor rod 8, the auxiliary fixing member 9, the flexible part 91 and the fixing part 92 on the anchor rod 8 do not contact the hole wall. However, at this time, the gap between the side of the auxiliary fixing member 9 far from the adjacent flexible part 91 and the hole wall is the smallest. After the staff stops rotating the anchor rod 8, the staff injects cement into the drill hole, and the cement flows deep into the drill hole. At this time, the auxiliary fixing member 9 and the flexible part 91 are driven by the cement and gradually bend downward. The auxiliary fixing member 9 contacts the hole wall and gradually moves downward under the drive of the flexible part 91 until the auxiliary fixing member 9 and the flexible part 91 contact the fixing part 92. The auxiliary fixing member 9 and the flexible part 91 stop deforming and moving under the support of the fixing part 92, and the auxiliary fixing member 9 abuts against the hole wall. When the drill hole is filled with cement, the auxiliary fixing member 9 abuts against the hole wall, increasing the friction and extrusion force between the cement and the hole wall, thereby increasing the firmness between the anchor rod 8 and the hole wall and increasing the anti-pulling ability of the device.

[0051] When the device is in use and the wind power equipment is affected by strong winds or even impacts and is subjected to an upward pulling force, at this time, because the semi-circular rings 81 between the two connected anchor rods 8 are fixed together, the strong wind needs to overcome not only the fixing force between the auxiliary fixing member 9 and the hole wall but also the fixing force between the two anchor rods 8, thereby increasing the fixing force of the anchor rod 8 on the device and further increasing the overall bearing capacity of the root knot and coiled pile.

[0052] Further explanation, as Figures 4-6 and Figure 8 shown, it also includes a locking component arranged on the extrusion ring 4. The locking component is used to assist the extrusion ring 4 in locking the deformed steel bar 3 bent to the vertical state. The locking component includes a locking ring 7. The locking ring 7 is rotatably connected inside the extrusion ring 4. The locking ring 7 is fixedly connected with circumferentially uniformly distributed limiting members 71. The limiting members 71 are used to limit the bent deformed steel bar 3, and the locking ring 7 is fixedly connected with an operating rod 72.

[0053] Further explanation, as Figures 4-6 shown, the fixing ring 2 is fixedly connected with circumferentially uniformly distributed guide blocks 73. The guide blocks 73 are used to limit the minimum bending radian of the adjacent deformed steel bars 3.

[0054] In the above solution, the limiting member 71 is made of a flexible material. By squeezing the limiting member 71 into the gap between the end of the deformed steel bar 3 in the vertical state and the extrusion groove 41, the limiting member 71 fixes the upper side of the bent part of the deformed steel bar 3, preventing the end of the deformed steel bar 3 from shaking under force and increasing the difficulty for the staff to assemble the end of the deformed steel bar 3.

[0055] The working process is as follows: when the end of the deformed rib steel 3 is squeezed and bent, the end of the deformed rib steel 3 is limited by the guide block 73 and bends downward along the outer side of the guide block 73. The arc of the deformation of the end of the deformed rib steel 3 is restricted by the guide block 73 to prevent the arc of the bent part of the deformed rib steel 3 from being too small when the deformed rib steel 3 is bent, thus affecting its own mechanical properties. When the deformed rib steel 3 is bent, when the deformed rib steel 3 is limited by the adjacent vertical groove 413 and the mounting hole 21, since there is always a certain gap (in a state of not being completely in contact) between the upper part of the bent part of the end of the deformed rib steel 3 and the vertical groove 413, when the staff uses other deformed rib steels 3 to fix the outside of the deformed rib steel 3 connected to the fixing ring 2, the deformed rib steel 3 in the fixing ring 2 is easily shaken by the external force, which is not conducive to the staff to operate the deformed rib steel 3. Therefore, after the end of the deformed rib steel 3 is bent, the staff rotates the operating rod 72, so that the operating rod 72 drives the locking ring 7 and the limiting member 71 to rotate together. The limiting member 71 is gradually squeezed into the gap between the upper side of the deformed rib steel 3 and the extrusion groove 41 to limit the deformed rib steel 3 connected to the fixing ring 2 more stably. Then the staff loosens the operating rod 72 and proceeds to install other deformed rib steels 3.

[0056] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.

Claims

1. A root-knotted and coiled pile for a wind farm with high bearing capacity, characterized in that, It includes a fixing frame (1), at least two fixing rings (2) are fixedly connected to the fixing frame (1), the fixing rings (2) are provided with circumferentially distributed mounting holes (21), uniformly distributed fixing blocks (22) are fixedly connected in the mounting holes (21), a deformed steel bar (3) is slidably connected in the mounting holes (21), the fixing blocks (22) are used to limit the transverse ribs on the deformed steel bar (3), a fixing mechanism for fixing adjacent deformed steel bars (3) to itself is arranged in the fixing ring (2), and an anchoring mechanism for increasing the bearing capacity of the fixing ring (2) is arranged on the deformed steel bar (3); The fixing mechanism includes an extrusion ring (4), the extrusion ring (4) is slidably connected in the fixing ring (2), the extrusion ring (4) is provided with circumferentially uniformly distributed extrusion grooves (41), the extrusion grooves (41) are aligned with the adjacent deformed steel bars (3), and a driving component is arranged on the extrusion ring (4); The extrusion groove (41) is composed of a horizontal groove (411), an inclined groove (412) and a vertical groove (413), and the horizontal groove (411), the inclined groove (412) and the vertical groove (413) are respectively used to extrude the deformed steel bars (3) in different bending states.

2. The root knot and coiled pile for a wind farm with high bearing capacity according to claim 1, characterized in that, Uniformly distributed fixing blocks (42) are arranged in the horizontal groove (411) of the extrusion groove (41), and the fixing blocks (42) are in extrusion contact with the adjacent deformed steel bars (3).

3. The root knot and coiled pile for a wind farm with high bearing capacity according to claim 1, characterized in that, The driving component includes a threaded rod (5), the threaded rod (5) is rotatably connected to the extrusion ring (4), a mounting rod (51) is fixedly connected to the fixing ring (2), a speed reducer (6) is installed on the mounting rod (51), the threaded rod (5) is detachably connected to the output shaft of the speed reducer (6), the threaded rod (5) is threadedly connected to the fixing ring (2), and a driving interface (61) is fixedly connected to the input shaft of the speed reducer (6).

4. The root knot and coiled pile for a wind farm with high bearing capacity according to claim 2, characterized in that, The anchoring mechanism includes a number of anchor rods (8), all the anchor rods (8) cross each other in pairs, the anchor rods (8) are installed between the deformed steel bars (3), and a friction component for increasing the friction between itself and the hole wall is arranged on the anchor rods (8).

5. A root-knotted and coiled pile for a wind farm with high bearing capacity according to claim 4, characterized in that, A semi-circular ring (81) is fixedly connected to the intersection of the anchor rod (8) and the adjacent anchor rod (8), and the adjacent two semi-circular rings (81) limit each other.

6. The root knot and coiled pile for a wind farm with high bearing capacity according to claim 5, characterized in that, The friction component includes a number of circumferentially distributed auxiliary fixing parts (9), the included angle between the auxiliary fixing parts (9) and the axis of the anchor rod (8) is less than 90°, and the auxiliary fixing parts (9) are inclined upward. The auxiliary fixing parts (9) include a flexible part (91) and a fixing part (92), the flexible part (91) is located at the contact position between the auxiliary fixing part (9) and the anchor rod (8), and the fixing part (92) is used to provide a supporting force to the flexible part (91).

7. A root-knotted and coiled pile for a wind farm with high bearing capacity according to claim 3, characterized in that, It further includes a locking component disposed on the extrusion ring (4). The locking component is used to assist the extrusion ring (4) in locking the deformed steel bar (3) bent to the vertical state. The locking component includes a locking ring (7). The locking ring (7) is rotatably connected inside the extrusion ring (4). The locking ring (7) is fixedly connected with limiting members (71) evenly distributed circumferentially. The limiting members (71) are used to limit the deformed steel bar (3). The locking ring (7) is fixedly connected with an operating rod (72).

8. A root-knotted and coiled pile for a wind farm with high bearing capacity according to claim 7, characterized in that, The fixed ring (2) is fixedly connected with guiding blocks (73) evenly distributed circumferentially. The guiding blocks (73) are used to limit the minimum bending radian of adjacent deformed steel bars (3).

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