CN114607154B - Foundation bolt precision adjusting device and method - Google Patents

Abstract

The invention provides a precise adjusting device and a precise adjusting method for a foundation bolt, which comprise an installation part and four supporting leg assemblies; the mounting part is provided with a through hole for bolting a foundation bolt; the four supporting leg assemblies are respectively positioned on four corners of the mounting part; the supporting leg assembly comprises a fixing piece and a telescopic rod which is telescopic along the Z-axis direction; one end of the telescopic rod is fixedly connected with the mounting part, and the other end of the telescopic rod is rotatably connected with the fixing part through a first spherical pair; the mounting part comprises a rectangular frame and a positioning box, and the through hole is formed in the positioning box; the rectangular frames are respectively fixedly connected with the telescopic rods; the positioning box is connected with the rectangular frame through the connecting assembly and moves along with the rectangular frame; and the four sides of the rectangular frame are respectively provided with a supporting component, and the supporting components are positioned below the positioning box and abut against the positioning box and are used for correcting the inclination of the positioning box. The invention can improve the positioning precision of the foundation bolt and is suitable for non-horizontal plane positioning.

Description

Foundation bolt precision adjusting device and method

Technical Field

The invention relates to the field of installation and positioning of foundation bolts, in particular to a foundation bolt precision adjusting device and method.

Background

The anchor bolt comprises a bent J-shaped or L-shaped end and a threaded end for fixing the mechanical member to the concrete foundation. When the anchor bolt is used, one end of the anchor bolt, which is J-shaped or L-shaped, is embedded into a concrete foundation through pouring concrete, so that the threaded end is exposed out of the surface of the concrete foundation, and a mechanical component is fixed by utilizing the threaded end. The foundation bolt needs to be positioned before concrete pouring, and the defect of low positioning accuracy exists in the prior art.

The invention patent with the application number of 202110155984.0 discloses a fixing device for an anchor bolt and a positioning method for the anchor bolt, and the fixing device comprises a supporting plate and a plurality of supporting legs, wherein a positioning hole for the anchor bolt to penetrate through is formed in the supporting plate, one end of each supporting leg is connected with the ground, the other end of each supporting leg is detachably connected with the supporting plate, and a fixing assembly for fixing the anchor bolt is arranged in each positioning hole. The scheme disclosed by the patent can not adjust the angle in the positioning process of the foundation bolt, so that the positioning accuracy is low and the foundation bolt is not suitable for non-horizontal positioning.

Disclosure of Invention

The invention provides a precise adjusting device and method for an anchor bolt, and aims to solve the problems that the angle cannot be adjusted in the anchor bolt positioning process and the anchor bolt is difficult to be suitable for non-horizontal plane positioning.

A precise adjusting device for a foundation bolt comprises a mounting part and four supporting leg assemblies; the mounting part is provided with a through hole for bolting a foundation bolt; the four supporting leg assemblies are respectively positioned on four corners of the mounting part; the supporting leg assembly comprises a fixing piece and a telescopic rod which is telescopic along the Z-axis direction; one end of the telescopic rod is fixedly connected with the mounting part, and the other end of the telescopic rod is rotatably connected with the fixing part through a first spherical pair; the mounting part comprises a rectangular frame and a positioning box, and the through hole is formed in the positioning box; the rectangular frames are respectively fixedly connected with the telescopic rods; the positioning box is connected with the rectangular frame through the connecting assembly and moves along with the rectangular frame; and the four sides of the rectangular frame are respectively provided with a supporting component, and the supporting components are positioned below the positioning box and abut against the positioning box and are used for correcting the inclination of the positioning box.

Furthermore, the connecting assembly comprises two sliding tables, sliding rods, a first threaded rod, a second threaded rod, sliding blocks and fixing blocks which are symmetrically arranged; the sliding table is fixedly connected with the rectangular frame; two ends of the sliding rod are respectively connected with the two sliding tables in a moving mode along the Y-axis direction; one end of the first threaded rod is rotatably connected with the sliding rod, and the other end of the first threaded rod is in threaded connection with the sliding block; the sliding block is movably connected with the sliding rod along the X-axis direction and is fixedly connected with the positioning box; the second threaded rod extends along the Y-axis direction, one end of the second threaded rod is rotatably connected with the rectangular frame, and the other end of the second threaded rod is in threaded connection with the fixed block; the fixed block is fixedly connected with the sliding rod.

Furthermore, sliding grooves extending along the X-axis direction are formed in two sides of the sliding rod; the sliding block is connected with a moving shaft; the moving shaft is movably arranged in the sliding groove along the X-axis direction.

Furthermore, two ends of the sliding rod are respectively provided with a first clamping groove with a downward opening; the first clamping groove is clamped with the sliding table and moves along the Y-axis direction.

Furthermore, a second clamping groove with an upward opening is formed in the connecting end of the sliding rod and the first threaded rod, and the first threaded rod is rotatably arranged in the second clamping groove; the first threaded rod further comprises a bolt head and a clamping ring, wherein the bolt head and the clamping ring are respectively located on two sides of the second clamping groove and used for limiting relative movement of the first threaded rod and the second clamping groove.

Further, the positioning box comprises a top plate and a bottom plate; the top plate is connected with the bottom plate through a connecting piece, and an accommodating space for accommodating the connecting assembly is formed; the top plate is provided with a first through hole penetrating along the Z-axis direction; the bottom plate is provided with a second through hole aligned with the first through hole; and the foundation bolt sequentially penetrates through the second through hole and the first through hole and then is bolted with the top plate.

Further, the device comprises four foundation bolts; the four foundation bolts are respectively positioned on four corners of the mounting part.

Further, the supporting component comprises a connecting plate and a ball head adjusting bolt; the connecting plate is fixedly connected with the rectangular frame and is provided with a threaded hole penetrating along the Z-axis direction; the ball head adjusting bolt comprises a threaded rod body and a supporting block, and the threaded rod body penetrates through a threaded hole to be in threaded connection with the connecting plate; the supporting block is rotatably connected with the adjusting bolt through a second spherical pair and abuts against the positioning box.

Furthermore, the telescopic rod comprises a sleeve, a first rod body and a second rod body; the first rod body and the second rod body are respectively in threaded connection with two ends of the sleeve and move relatively when the sleeve is rotated.

A method for installing an anchor bolt by using the anchor bolt fine adjustment device, which comprises the following steps:

fixing the landing leg assembly at the installation position of the foundation bolt;

adjusting the Z-axis height, the X-axis deflection angle, the Y-axis deflection angle and the three-dimensional deflection angle of the foundation bolt;

after the adjustment is finished, fixing the foundation bolt and the reinforcement cage, and pouring the foundation bolt after the adjusting device is detached;

the step of adjusting the height of the Z axis comprises the step of synchronously adjusting the lengths of four supporting leg assemblies;

the step of adjusting the X-axis deflection angle comprises the step of symmetrically dividing the four supporting leg assemblies into two groups along the X axis; extending one of the leg assemblies and shortening the other leg assembly;

the Y-axis deflection angle adjustment comprises the steps that four supporting leg assemblies are symmetrically divided into two groups along the Y axis; extending one of the leg assemblies and shortening the other leg assembly;

adjusting the three-dimensional deflection angle includes lengthening or shortening one leg assembly and shortening or lengthening the other three leg assemblies.

Has the advantages that: 1. according to the precise adjusting device for the foundation bolt, provided by the invention, the X-axis deflection angle, the Y-axis deflection angle and the three-dimensional arbitrary deflection angle of the foundation bolt can be adjusted by adjusting the lengths of different leg assemblies, so that the positioning precision of the foundation bolt is improved; and when the ground is a non-horizontal plane, the length of different landing leg assemblies is adjusted to enable the foundation bolt to be perpendicular to the horizontal plane, and then angle adjustment is carried out, so that the foundation bolt can complete positioning of the non-horizontal plane.

2. According to the precise adjusting device for the foundation bolt, provided by the invention, the relative position between the positioning box and the rectangular frame can be adjusted by rotating the first threaded rod and the second threaded rod, so that the horizontal position of the foundation bolt is finely adjusted, the moving amount of the horizontal position of the foundation bolt in the angle adjusting process is compensated, and the positioning precision of the foundation bolt is further ensured.

3. According to the precise adjusting device for the foundation bolts, the positioning box is supported through the supporting assembly, the stability of the foundation bolts in the positioning process is guaranteed, the inclination of the positioning box can be corrected by adjusting the relative positions of the ball head adjusting bolts and the connecting plate, the manufacturing error of the device is compensated, the surface of the positioning box is parallel to the surface of the rectangular frame, and the accuracy of subsequent foundation bolt positioning is further guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of a foundation bolt fine adjustment device according to the present invention;

FIG. 2 is a schematic view of the foundation bolt fine adjustment device shown in FIG. 1 with a top plate hidden;

FIG. 3 is a schematic view of the foundation bolt fine adjustment apparatus shown in FIG. 1 with the positioning box hidden;

FIG. 4 is a schematic axial cross-sectional view of a ball stud according to the present invention;

FIG. 5 is an axial cross-sectional structural view of the leg assembly of the present invention;

FIG. 6 is a schematic view of the precise adjusting device for foundation bolts in the invention when the precise adjusting device is positioned on the reverse inclined surface.

Reference numerals are as follows: 1. a leg assembly; 2. a foundation bolt; 3. a rectangular frame; 4. a positioning box; 5. a support assembly; 6. a connecting assembly;

11. a fixing member; 12. a telescopic rod; 13. first spherical pair

121. A sleeve; 122. a first rod body; 123. a second rod body;

21. a nut;

31. a fixing plate; 32. a third card slot;

41. a top plate; 42. a base plate; 43. a connecting member; 44. a first through hole; 45. a second through hole;

431. a first plate body; 432. a second plate body;

51. a connecting plate; 52. a ball head adjusting bolt;

521. a threaded rod body; 522. a supporting block; 523. a second spherical pair;

61. a sliding table; 62. a slide bar; 63. a first threaded rod; 64. a second threaded rod; 65. a slider; 66. a fixed block;

621. a sliding groove; 622. a first card slot; 623. a second card slot;

631. a bolt head; 632. a snap ring.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1, the present embodiment provides a precise adjusting device for a foundation bolt, which comprises a mounting part and four leg assemblies 1; the mounting part is provided with a through hole for bolting the foundation bolt 2; the mounting part is of a rectangular structure, and four leg assemblies 1 are respectively mounted on four corners of the mounting part; the supporting leg assembly 1 comprises a fixing piece 11 and a telescopic rod 12 which extends and retracts along the Z-axis direction; one end of the telescopic rod 12 is fixedly connected with the mounting part, and the other end is rotatably connected with the fixing part 11 through a first spherical pair 13. When the foundation bolt 2 is positioned, the threaded end of the foundation bolt 2 penetrates through the through hole along the bottom end of the mounting part and extends out of the top part, and then the nut 21 is locked to the extending end, so that the foundation bolt 2 is fixed on the mounting part; then be fixed in rag bolt 2's mounted position with landing leg subassembly 1, thereby adjust rag bolt 2's angle through adjusting the length of each landing leg subassembly 1, make rag bolt 2 accurate positioning. When the installation position of the foundation bolt 2 is an inclined plane, the leg assembly 1 is fixed on the inclined plane, then the length of each leg assembly 1 is adjusted to enable the foundation bolt 2 to be vertical to the horizontal plane, and then the angle is adjusted. When the installation position is a reverse slope, that is, the fixing surface of the leg assembly 1 is located below the installation position of the foundation bolt 2, the positioning box 4 may be turned over until the J-shaped or L-shaped end of the foundation bolt 2 faces upward, and the foundation bolt 2 is adjusted to be perpendicular to the horizontal plane and then adjusted in angle, as specifically shown in fig. 6. The foundation bolt 2 precision adjusting device provided by the invention not only can adjust the positioning angle, but also can be suitable for positioning when the foundation bolt 2 is installed at different installation positions, and the application range is wide.

Specifically, the fixing member 11 may be a triangular claw structure, and the triangular claw structure may be inserted into the ground to be stably fixed to the adjusting device.

With continued reference to fig. 1, the mounting portion includes a rectangular frame 3 and a positioning box 4; four corners of the rectangular frame 3 are respectively welded with the corresponding telescopic rods 12; the positioning box 4 is connected with the rectangular frame 3 through the connecting assembly 6, so that the positioning box 4 moves along with the rectangular frame 3, and the positioning adjustment of the foundation bolts 2 is realized; the foundation bolts 2 are installed in a box structure, so that the stability of the foundation bolts 2 can be ensured, and the positioning accuracy is further ensured; referring to fig. 3, four sides of the rectangular frame 3 are respectively provided with a supporting component 5, the supporting components 5 are located below the positioning box 4 and abut against the positioning box 4, the positioning box 4 is supported by the supporting components 5, and the inclination of the positioning box 4 is corrected, so that the surface of the positioning box 4 is parallel to the surface of the rectangular frame 3, and the positioning accuracy is further ensured.

Specifically, referring to fig. 2, the connecting assembly 6 includes two sliding tables 61, a sliding rod 62, a first threaded rod 63, a second threaded rod 64, a sliding block 65, and a fixed block 66, which are symmetrically arranged; the two sliding tables 61 are respectively welded with two symmetrical side edges of the rectangular frame 3; two ends of the sliding rod 62 are movably connected with the two sliding tables 61 respectively, and the moving direction is the Y-axis direction; one end of the first threaded rod 63 is rotatably connected with the sliding rod 62, the other end of the first threaded rod is in threaded connection with the sliding block 65, the sliding block 65 is welded with the positioning box 4, and the positioning box 4 is driven to move along the X-axis direction relative to the rectangular frame 3 by rotating the first threaded rod 63; two sides of the sliding rod 62 are provided with sliding grooves 621 extending along the X-axis direction; a moving shaft is connected to the sliding block 65; the moving shaft is movably arranged in the sliding groove 621 along the X-axis direction, so that the sliding block 65 is connected with the sliding rod 62 and moves along the X-axis direction relative to the sliding rod 62; the second threaded rod 64 extends along the Y-axis direction, one end of which is rotatably connected with the rectangular frame 3, and the other end of which is in threaded connection with a fixed block 66; the fixed block 66 is fixedly connected with the sliding rod 62; the positioning box 4 is driven to move in the Y-axis direction with respect to the rectangular frame 3 by rotating the second threaded rod 64.

In the angle positioning adjustment process of the foundation bolt 2, the foundation bolt 2 generates small offset in the directions of an X axis, a Y axis and a Z axis, the positioning box 4 is driven to move in the directions of the X axis and the Y axis relative to the rectangular frame 3 by rotating the first threaded rod 63 and the second threaded rod 64, so that the offset of the foundation bolt 2 in the directions of the X axis and the Y axis is compensated, the height of each landing leg assembly 1 is synchronously adjusted to compensate the offset in the direction of the Z axis, and the positioning accuracy of the foundation bolt 2 is further ensured.

Specifically, two ends of the sliding rod 62 are respectively provided with a first clamping groove 622 with a downward opening; the first engaging groove 622 is engaged with the sliding table 61 and moves in the Y-axis direction. A second clamping groove 623 with an upward opening is formed at the connecting end of the sliding rod 62 and the first threaded rod 63, and the first threaded rod 63 is rotatably arranged in the second clamping groove 623; the first threaded rod 63 further includes a bolt head 631 and a snap ring 632, and the bolt head 631 and the snap ring 632 are respectively located on two sides of the second snap groove 623 and are used for limiting relative movement between the first threaded rod 63 and the second snap groove 623. Correspondingly, a fixing plate 31 is further welded to the side edge of the rectangular frame 3 adjacent to the sliding table 61, and a third clamping groove 32 with an upward opening is formed in the fixing plate 31; second threaded rod 64 is rotatably disposed within third slot 32 and is restrained from relative movement with respect to third slot 32 by bolt head 631 and snap ring 632. In the process of dismounting and mounting the positioning box 4 and the rectangular frame 3, only the threaded rod and the sliding table 61 need to be separated from or clamped with the corresponding clamping groove, so that the operation is convenient and fast; when the threaded rod is rotated, the threaded rod can be rotated only by clamping the corresponding snap ring 632.

Specifically, referring to fig. 1 and 2, the positioning box 4 includes a top plate 41 and a bottom plate 42; the top plate 41 and the bottom plate 42 are welded through a connecting piece 43, and an accommodating space for accommodating the connecting assembly 6 is formed; a first through hole 44 penetrating along the Z-axis direction is formed in the top plate 41; the bottom plate 42 is provided with a second through hole 45 aligned with the first through hole 44; the foundation bolt 2 sequentially passes through the second through hole 45 and the first through hole 44 and then is bolted with the top plate 41. The foundation bolt 2 is fixed through the first through hole 44 and the second through hole 45 on the top plate 41 and the bottom plate 42, so that the foundation bolt 2 is prevented from shaking, and the stability of the foundation bolt 2 in the positioning process is ensured; and a receiving space for receiving the connecting assembly 6 is formed between the top plate 41 and the bottom plate 42, so that the adjusting device is more compact.

Specifically, as shown in fig. 2, the connecting piece 43 includes a first plate 431 and a second plate 432 connected to each other and arranged at 90 °; the connecting member 43 is located at a corner position of the top plate 41, and the first plate 431 and the second plate 432 are respectively welded to different sides of the top plate 41 or the bottom plate 42. The connection stability between the bottom plate 42 and the top plate 41 is ensured.

Specifically, a cross center line is provided on the upper surface of the top plate 41 with the center thereof being set as a reference, and the positioning of the anchor bolt 2 is adjusted with the cross center line being set as a reference.

Specifically, referring to fig. 3, the support assembly 5 includes a connecting plate 51 and a ball stud 52; the connecting plate 51 is welded with the rectangular frame 3 and extends towards the center of the rectangular frame 3; a threaded hole penetrating along the Z-axis direction is formed in the connecting plate 51; referring to fig. 4, the ball-end adjusting bolt 52 includes a threaded rod 521 and a support block 522, the threaded rod 521 passes through the threaded hole to be in threaded connection with the connecting plate 51, and the support block 522 is rotatably connected with the adjusting bolt through a second spherical pair 523 and abuts against the positioning box 4. The relative position between the ball stud 52 and the connecting plate 51 on the Z-axis can be adjusted by rotating the threaded rod 521, and the relative inclination between the positioning box 4 and the rectangular frame 3 can be adjusted by adjusting each ball stud 52, so that the surface of the positioning box 4 is parallel to the surface of the rectangular frame 3.

The precision adjusting device of foundation bolt 2 that this embodiment provided can adopt simple steel pipe, the steel sheet material is makeed, there may be the error in the manufacturing process and lead to the surface of location box 4 and rectangular frame 3's surface nonparallel, can compensate the preparation error through adjusting bulb adjusting bolt 52, make the surface of location box 4 and rectangular frame 3's surface keep parallel, thereby guarantee the precision of follow-up location result, because supporting shoe 522 passes through second spherical pair 523 and adjusting bolt and is rotated and be connected, make and to keep the contact of supporting shoe 522 and 4 bottom surfaces of location box in the accommodation process all the time, guarantee the support to location box 4. After the adjusting device can be manufactured by adopting simple steel pipes and steel plate materials, although certain manufacturing errors exist, the adjusting device is convenient to manufacture and low in cost, and the manufacturing errors are supplemented by adjusting the ball head adjusting bolts 52, so that the positioning accuracy of the foundation bolts 2 is also ensured.

Specifically, referring to fig. 5, the telescopic rod 12 includes a sleeve 121, a first rod 122 and a second rod 123; the first rod body 122 and the second rod body 123 are respectively in threaded connection with two ends of the sleeve 121, and the first rod body 122 and the second rod body 123 move relatively when the sleeve 121 is rotated through the rotation direction of the threads, so that the telescopic effect is achieved.

Example 2

The embodiment provides a method for installing an anchor bolt by using the anchor bolt precision adjusting device in the embodiment 1, which comprises the following steps:

firstly, fixing a leg assembly 1 at the installation position of an anchor bolt 2;

secondly, adjusting the Z-axis height, the X-axis deflection angle, the Y-axis deflection angle and the three-dimensional deflection angle of the foundation bolt 2;

thirdly, fixing the foundation bolt 2 and the reinforcement cage after the adjustment is finished, and pouring the foundation bolt 2 after the adjusting device is detached;

the Z-axis height adjustment comprises the synchronous adjustment of the lengths of the four leg assemblies 1;

the Y-axis deflection angle adjustment comprises the steps that four supporting leg assemblies 1 are symmetrically divided into two groups along the Y axis; extending one group of leg assemblies 1 and shortening the other group of leg assemblies 1;

the adjustment of the three-dimensional deflection angle includes lengthening or shortening one leg assembly 1 and shortening or lengthening the other three leg assemblies 1.

Specifically, the positioning box 4 is mounted in the rectangular frame 3 before the first step is performed, and the manufacturing error of the adjustment device is compensated by making the surface of the positioning box 4 parallel to the surface of the rectangular frame 3 by the ball stud 52.

Specifically, after the adjustment of the Z-axis height, the X-axis deflection angle, the Y-axis deflection angle, and the three-dimensional deflection angle in the second step is completed, the X-axis and Y-axis deflections of the anchor bolt 2 are compensated by rotating the first threaded rod 63 and the second threaded rod 64, the Z-axis deflections of the four telescopic rods 12 are compensated by synchronously adjusting, and the positioning accuracy of the anchor bolt 2 is further improved.

Specifically, when the installation position of the anchor bolt 2 is an inclined plane or a reverse inclined plane, the length of each leg assembly 1 is adjusted before the second step is performed, so that the anchor bolt 2 is perpendicular to the horizontal plane, and then the height adjustment and the angle adjustment of the second step are performed, so that the positioning adjustment precision is further ensured.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.

Claims (8)

1. A precise adjusting device for a foundation bolt is characterized by comprising an installation part and four leg assemblies; the mounting part is provided with a through hole for bolting a foundation bolt; the four supporting leg assemblies are respectively positioned on four corners of the mounting part; the supporting leg assembly comprises a fixing piece and a telescopic rod which is telescopic along the Z-axis direction; one end of the telescopic rod is fixedly connected with the mounting part, and the other end of the telescopic rod is rotatably connected with the fixing part through a first spherical pair; the mounting part comprises a rectangular frame and a positioning box, and the through hole is formed in the positioning box; the rectangular frames are respectively fixedly connected with the telescopic rods; the positioning box is connected with the rectangular frame through the connecting assembly and moves along with the rectangular frame; the four sides of the rectangular frame are respectively provided with a supporting component, and the supporting components are positioned below the positioning box and abut against the positioning box and are used for correcting the inclination of the positioning box;

the positioning box comprises a top plate and a bottom plate; the top plate is connected with the bottom plate through a connecting piece, and an accommodating space for accommodating the connecting assembly is formed; a first through hole penetrating along the Z-axis direction is formed in the top plate; the bottom plate is provided with a second through hole aligned with the first through hole; the foundation bolt sequentially penetrates through the second through hole and the first through hole and then is bolted with the top plate;

the supporting component comprises a connecting plate and a ball head adjusting bolt; the connecting plate is fixedly connected with the rectangular frame and is provided with a threaded hole penetrating along the Z-axis direction; the ball head adjusting bolt comprises a threaded rod body and a supporting block, and the threaded rod body penetrates through a threaded hole to be in threaded connection with the connecting plate; the supporting block is rotatably connected with the adjusting bolt through a second spherical pair and abuts against the positioning box.

2. The precise adjusting device for the foundation bolt according to claim 1, wherein the connecting assembly comprises two sliding tables, a sliding rod, a first threaded rod, a second threaded rod, a sliding block and a fixed block which are symmetrically arranged; the sliding table is fixedly connected with the rectangular frame; two ends of the sliding rod are respectively connected with the two sliding tables in a moving mode along the Y-axis direction; one end of the first threaded rod is rotatably connected with the sliding rod, and the other end of the first threaded rod is in threaded connection with the sliding block; the sliding block is movably connected with the sliding rod along the X-axis direction and is fixedly connected with the positioning box; the second threaded rod extends along the Y-axis direction, one end of the second threaded rod is rotatably connected with the rectangular frame, and the other end of the second threaded rod is in threaded connection with the fixed block; the fixed block is fixedly connected with the sliding rod.

3. The precise adjusting device for the foundation bolt according to claim 2, wherein sliding grooves extending along the X-axis direction are formed on two sides of the sliding rod; the sliding block is connected with a moving shaft; the moving shaft is movably arranged in the sliding groove along the X-axis direction.

4. The precise adjusting device for the foundation bolt according to claim 2, wherein two ends of the sliding rod are respectively provided with a first clamping groove with a downward opening; the first clamping groove is clamped with the sliding table and moves along the Y-axis direction.

5. The precise adjusting device for the foundation bolt according to claim 2, wherein a second locking groove with an upward opening is formed at the connecting end of the sliding rod and the first threaded rod, and the first threaded rod is rotatably arranged in the second locking groove; the first threaded rod further comprises a bolt head and a clamping ring, wherein the bolt head and the clamping ring are respectively located on two sides of the second clamping groove and used for limiting relative movement of the first threaded rod and the second clamping groove.

6. The foundation bolt fine adjustment device according to claim 1, comprising four foundation bolts; the four anchor bolts are respectively positioned at four corners of the mounting part.

7. The precise adjusting device for the foundation bolt as claimed in claim 1, wherein the telescopic rod comprises a sleeve, a first rod body and a second rod body; the first rod body and the second rod body are respectively in threaded connection with two ends of the sleeve and move relatively when the sleeve is rotated.

8. A method for installing an anchor bolt using the anchor bolt fine adjustment apparatus as claimed in any one of claims 1 to 7, comprising the steps of:

fixing the landing leg assembly at the installation position of the foundation bolt;

adjusting the Z-axis height, the X-axis deflection angle, the Y-axis deflection angle and the three-dimensional deflection angle of the foundation bolt;

after the adjustment is finished, fixing the foundation bolt and the reinforcement cage, and pouring the foundation bolt after the adjusting device is detached;

adjusting the Z-axis height comprises synchronously adjusting the lengths of the four leg assemblies;

adjusting the X-axis deflection angle comprises symmetrically dividing the four leg assemblies into two groups along the X-axis; extending one of the leg assemblies and shortening the other leg assembly;

adjusting the Y-axis deflection angle comprises symmetrically dividing the four leg assemblies into two groups along the Y-axis; extending one of the leg assemblies and shortening the other leg assembly;

adjusting the three-dimensional deflection angle includes lengthening or shortening one leg assembly and shortening or lengthening the other three leg assemblies.

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