Fixing and repairing device for civil construction engineering pile foundation

Abstract

The invention relates to the technical field of pile foundation repairing, in particular to a civil construction engineering pile foundation fixing and repairing device which comprises an n-shaped bottom frame and two limiting frames of L-shaped structures, pulley blocks are arranged at the positions, located at the four corners, of the bottom of the bottom frame, and the two limiting frames are fixedly installed on the two sides of the front end of the bottom frame correspondingly. The two sets of limiting frames are in mirror symmetry relative to the central axis of the bottom frame, vertical grooves are formed in the opposite faces of the two sets of L-shaped limiting frames, sliding plates are slidably connected to the bottom ends of the interiors of the vertical grooves, the opposite faces of the two sets of sliding plates extend to the outer walls of the vertical grooves and are fixedly provided with rectangular through frames respectively, and a double-shaft ring is movably connected between the two sets of through frames in a sleeved mode. On the basis of adaptive limiting and clamping of the pile foundation, pretreatment cleaning before repairing is conducted on defect areas, with different heights and directions, of the surface of the pile foundation conveniently, so that defect cracking positions are fully exposed to be prepared for repairing treatment, and the fixing and repairing efficiency of the pile foundation is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation repair, in particular to a pile foundation fixing and repairing device for civil engineering projects. Background Art

[0002] Pile foundation is an important part of building structure, which is responsible for transferring building load. However, pile foundation often needs to be repaired due to various reasons. Common problems of pile foundation include pile fracture, cracking and void. Common repair methods for the above problems are to wrap the pile with reinforced concrete and drill holes and grouting.

[0003] In the process of pile foundation repair, since an indefinite amount of concrete waste is easily attached to the surface of the pile body during construction, cracks and voids on the surface of the pile foundation are forced to be covered, reducing the normal progress of repair work such as grouting on the surface of the pile foundation. At the same time, since the pile foundation itself is relatively high, it is time-consuming and laborious to remove some of the concrete waste attached to high places and scattered in various directions, which also reduces the efficiency of pile foundation repair.

[0004] In view of the technical defects in this aspect, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to facilitate the pre-treatment and cleaning of defective areas at different heights and orientations on the surface of the pile foundation before repair on the basis of adaptive limit clamping of the pile foundation, so that the defective cracking positions can be fully exposed for preparation for repair treatment, thereby effectively improving the fixing and repair efficiency of the pile foundation.

[0006] The purpose of the present invention can be achieved by the following technical scheme: a pile foundation fixing and repairing device for civil engineering and construction engineering, comprising a bottom frame in the shape of a Chinese character "J" and two groups of limit frames in an L-shaped structure, wherein pulley blocks are arranged at four groups of corners at the bottom of the bottom frame, and the two groups of limit frames are respectively fixedly installed at the two sides of the front end of the bottom frame, and the two groups of limit frames are mirror-symmetrical with respect to the central axis of the bottom frame;

[0007] The two groups of L-shaped limit frames are provided with vertical grooves on the opposite sides, and a slide plate is slidably connected to the bottom end of the vertical groove. The two groups of slide plates extend to the outer wall of the vertical groove and are respectively fixed with rectangular through frames. A double-axis ring is movably sleeved between the two groups of through frames. Limit gears are arranged inside each group of through frames and on both sides of the double-axis ring. The top surface of each group of limit gears is rotatably connected to the inner wall of the top of the through frame through a rotating shaft. The top of one group of rotating shafts extends to the outside of the through frame and is provided with a motor.

[0008] Furthermore, tooth groove groups are equidistantly arranged in the middle section of the ring groove on the outer ring surface of the double-axis ring, and the tooth groove groups are meshed with two groups of limiting gears. Several groups of narrow-top and wide-bottom abutment columns are equidistantly fixedly installed on the ring frame on the top surface of the double-axis ring, one group of which is provided with a pile surface cleaning assembly on one side of the front end face of the through frame through an L-shaped connecting rod, and a lifting assembly is provided inside each group of the limiting frames and on one side of the slide.

[0009] Furthermore, an insert tube is provided through the centers of the opposite surfaces of the two groups of through frames, and one end of the insert tube extends to the interior of the through frame and abuts against the inner wall of the double-axis ring, a resist tube is provided through the interior of the insert tube, a spring damping shock absorber is provided between one end of the resist tube and the inner wall of the insert tube, and the other end of the resist tube extends to the outside of the insert tube and is fixedly installed with a scraper strip.

[0010] Furthermore, the pile surface cleaning component is sleeved and installed at the front end of the double-axis ring, and the pile surface cleaning component includes two groups of fixed rings, and the two groups of fixed rings are fixedly installed at the end position of the L-shaped connecting rod close to the double-axis ring. A rotating cylinder is sleeved between the two groups of fixed rings, and the two groups of rotating cylinders are respectively sleeved at the front and rear end centers of the double-axis ring. A plurality of groups of conical grooves are equidistantly arranged on the inner wall of the rotating cylinder, and the conical grooves are adapted to the abutment columns.

[0011] Furthermore, a plurality of groups of inclined shovel blades are arranged on the outside of the rotating cylinder at equal distances between the two groups of fixed rings, and the ends of the shovel blades away from the rotating cylinder are arranged in an oblique surface. Sliding shafts are fixedly installed at the middle sections of both sides of the shovel blades, and one end of the sliding shaft is slidably connected to the inside of an arc groove arranged on the inner ring wall of the fixed ring.

[0012] Furthermore, the two groups of lifting assemblies are mirror-symmetrical about the central axis of the double-axis ring, and the lifting assembly includes a concave card frame, and an L-shaped lifting rod is rotatably connected to the top of the concave card frame through a rotating shaft, one end of the L-shaped lifting rod is hinged to the corresponding side of the skateboard, and a round shaft 1 is fixedly installed on the front end surface of the L-shaped lifting rod and away from the skateboard. The outside of the round shaft 1 is sleeved with a vertical frame, and the round shaft 1 is slidably connected to the top of the inner groove of the vertical frame. A long board is fixedly installed on the bottom of the vertical frame, and one end of the long board passes through the inside of the concave card frame, and a round shaft 2 is fixedly installed on the bottom surface of the other end.

[0013] Furthermore, the second circular shaft is movably connected to a movable plate, and the movable plate is slidably connected to the surface of the limit frame and is located on one side of the concave card frame. The surface of the movable plate is provided with a limit groove of a Z-shaped structure, and the second circular shaft is slidably connected inside the limit groove. The rear ends of the two groups of movable plates are jointly fixedly installed with a concave push frame, and a cylinder is provided at the center of the rear end of the concave push frame through a push rod, and the cylinder is fixedly installed at the center of the top surface of the bottom frame through a machine base.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention is to cooperate with a limit frame, a through frame, a double-axis ring and a pile surface cleaning component, the double-axis ring is sleeved on the outside of the pile foundation, the motor drives the limit gear and the double-axis ring to rotate, and the abutment column cooperates with the conical slot to realize the self-rotation of the rotating drum, so that a plurality of groups of shovel blades alternately operate to fully scrape the defective area on the surface of the pile foundation, so as to remove the concrete waste residue in the defective area, force the pile foundation defects to be fully exposed and facilitate accurate repair, and improve the efficiency of pile foundation repair;

[0016] At the same time, the end of the shovel blade is adaptively adjusted according to the protruding thickness of the pile foundation surface. The greater the thickness of the waste residue, the greater the lifting amplitude of the end of the shovel blade. The sliding shaft slides obliquely downward along the inside of the arc groove until the end of the shovel blade adapts to the surface of the pile foundation, which is beneficial to improve the cleaning effect of the pile surface.

[0017] 2. The present invention also sets a lifting assembly, and cooperates with the slide plate, the through frame and the pile surface cleaning assembly. The cylinder pulls the concave push frame and the two sets of movable plates backward, and the circular shaft 2 slides along the inside of the limiting groove. The circular shaft 2 pushes the long plate to move into the concave clamping frame due to the pressure of the tortuous inner wall of the limiting groove. The vertical frame moves synchronously with the long plate, forcing the end of the L-shaped lifting rod to be lifted up, and the circular shaft 1 slides along the inner groove of the vertical frame. The other end of the L-shaped lifting rod pulls the slide plate, the through frame and the double-axis ring to lift them up. Therefore, the pile surface cleaning assembly is lifted upward until it is aligned with the defective area at a higher position, further improving the cleaning effect of the pile foundation and the subsequent repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a plan view schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a cross-sectional view of the combination of the slide plate, the through frame and the double-axis ring of the present invention;

[0022] Figure 4 It is a partial schematic diagram of the combination of the double-axis ring and the rotating drum of the present invention;

[0023] Figure 5 It is a side cross-sectional view of the combination of the fixed collar, the rotating drum and the pile foundation cleaning assembly of the present invention;

[0024] Figure 6 A top view of the present invention as a whole;

[0025] Figure 7 It is a three-dimensional schematic diagram of the combination of the limit frame and the lifting assembly of the present invention.

[0026] In the figure: 1, bottom frame; 2, limit frame; 201, vertical slot; 202, slide plate; 3, through frame; 301, insert tube; 302, resist tube; 303, spring damping shock absorber; 304, scraper; 4, double-axis ring; 401, tooth groove group; 402, resist column; 5, limit gear; 501, motor; 6, L-shaped connecting rod; 7, pile surface cleaning assembly; 71, fixed collar; 72, rotating drum; 73, conical slot; 74, shovel blade; 75, sliding shaft; 76, arc slot; 8, lifting assembly; 81, concave card frame; 82, L-shaped lifting rod; 83, circular shaft one; 84, vertical frame; 85, long board; 86, circular shaft two; 87, movable board; 88, limit slot; 89, concave push frame; 810, cylinder. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0028] Example 1: Please refer to Figure 1 - Figure 7 As shown, a pile foundation fixing and repairing device for civil engineering and construction engineering comprises a bottom frame 1 in the shape of a Chinese character "J" and two sets of limit frames 2 in an L-shaped structure, and pulley blocks are arranged at four sets of corners at the bottom of the bottom frame 1, and the two sets of limit frames 2 are respectively fixedly installed at both sides of the front end of the bottom frame 1, and the two sets of limit frames 2 are mirror-symmetrical with respect to the central axis of the bottom frame 1;

[0029] The two groups of L-shaped limit frames 2 have vertical grooves 201 on their opposite sides, and the bottom of the vertical grooves 201 is slidably connected with a slide plate 202. The two groups of slide plates 202 have opposite sides extending to the outer wall of the vertical grooves 201 and are respectively fixed with rectangular through frames 3. A double-axis ring 4 is movably sleeved between the two groups of through frames 3. Limit gears 5 are arranged inside each group of through frames 3 and on both sides of the double-axis ring 4. The top surface of each group of limit gears 5 is rotatably connected to the inner wall of the top of the through frame 3 through a rotating shaft. The top of one group of rotating shafts extends to the outside of the through frame 3 and is provided with a motor 501.

[0030] A tooth groove group 401 is equidistantly arranged at the middle ring groove of the outer ring surface of the double-axis ring ring 4, and the tooth groove group 401 is meshed with two groups of limit gears 5. A plurality of groups of upper narrow and lower wide abutment columns 402 are equidistantly fixedly installed at the ring frame on the top surface of the double-axis ring ring 4; a pile surface cleaning component 7 is arranged at one side of the front end surface of one group of through frames 3 through an L-shaped connecting rod 6. First, the double-axis ring ring 4 is sleeved on the outside of the pile foundation, and the two groups of through frames 3 are respectively located on both sides of the pile foundation. By rotating the bottom frame 1, the pile surface cleaning component 7 is rotated to the surface defect of the pile foundation;

[0031] The pile surface cleaning assembly 7 is sleeved and installed at the front end of the double-axis ring 4. The pile surface cleaning assembly 7 includes two sets of fixed collars 71. The two sets of fixed collars 71 are fixedly installed at the end position of the L-shaped connecting rod 6 close to the double-axis ring 4. A rotating cylinder 72 is sleeved between the two sets of fixed collars 71. The two sets of rotating cylinders 72 are sleeved at the front and rear end centers of the double-axis ring 4 respectively. A plurality of sets of conical grooves 73 are arranged at equal distances on the inner wall of the rotating cylinder 72, and the conical grooves 73 are adapted to the abutment column 402.

[0032] A plurality of inclined shovel blades 74 are arranged at equal distances between the two sets of fixed collars 71 on the outside of the rotating cylinder 72, and the ends of the shovel blades 74 away from the rotating cylinder 72 are arranged with beveled surfaces. Sliding shafts 75 are fixedly installed at the middle sections of both sides of the shovel blades 74, and one end of the sliding shaft 75 is slidably connected to the inside of the arc groove 76 arranged on the inner ring wall of the fixed collar 71.

[0033] Then the motor 501 is started, and one of the groups of limit gears 5 is driven to rotate, and the limit gear 5 is meshed with the double-axis ring 4 to realize self-rotation, and the double-axis ring 4 is successively rotated into the inside of the rotating drum 72, and a number of support columns 402 rotate with the double-axis ring 4, and mesh with the conical groove 73 to realize the rotation of the rotating drum 72, and a number of groups of shovel blades 74 rotate with the rotating drum 72, and the tip of the shovel blade 74 is used to scrape and remove the concrete slag on the surface of the pile foundation, and the end of the shovel blade 74 is adaptively adjusted according to the protruding thickness of the pile foundation surface. The greater the thickness of the waste slag, the greater the amplitude of the warping of the end of the shovel blade 74, and the sliding shaft 75 slides obliquely downward along the inside of the arc groove 76 until the end of the shovel blade 74 adapts to the surface of the pile foundation, thereby improving the cleaning efficiency of the pile foundation surface.

[0034] Example 2: Please refer to Figure 3 As shown, an insert tube 301 is provided through the center of the opposite surfaces of the two sets of through frames 3, and one end of the insert tube 301 extends to the inside of the through frame 3 and abuts against the inner wall of the double-axis ring 4, and a resisting tube 302 is provided through the inside of the insert tube 301, and a spring damping shock absorber 303 is provided between one end of the resisting tube 302 and the inner wall of the insert tube 301, and the other end of the resisting tube 302 extends to the outside of the insert tube 301 and is fixedly installed with a scraper strip 304;

[0035] Before cleaning the pile foundation, the two groups of through frames 3 are respectively located on the pile body, and the spacing between the two groups of scraping strips 304 is adjusted according to the diameter of the pile foundation. The larger the outer diameter of the pile foundation, the more the two groups of scraping strips 304 are pressed against the through frames 3, and the push tube 302 is pushed into the inside of the insert tube 301 until the push tube 302 cannot move. At this time, the two groups of scraping strips 304 are pressed against the two sides of the pile foundation respectively, so as to strengthen the connection between the double-axis ring 4 and the surface of the pile foundation, and strengthen the limit fixation of the pile foundation, so as to assist the efficient operation of the pile surface cleaning component 7;

[0036] At the same time, when the bottom frame 1 is rotated and adjusted, the two groups of scraping strips 304 rotate along the surface of the pile body, and are convenient for further scraping and cleaning the waste residue in the defective area, accelerating the falling of the waste residue and keeping the surface of the pile foundation clean, so as to fully expose the defective area.

[0037] Example 3: Please refer to Figure 6 - Figure 7 As shown, a lifting assembly 8 is provided inside each set of limit frames 2 and on one side of the slide plate 202. The two sets of lifting assemblies 8 are mirror-symmetrical about the central axis of the double-axis ring 4. The lifting assembly 8 includes a concave clamping frame 81, and an L-shaped lifting rod 82 is rotatably connected to the top of the concave clamping frame 81 through a rotating shaft. One end of the L-shaped lifting rod 82 is hinged to the corresponding side of the slide plate 202.

[0038] A round shaft 83 is fixedly installed on the front end face of the L-shaped lifting rod 82 and at one end away from the slide plate 202. A vertical frame 84 is sleeved on the outside of the round shaft 83, and the round shaft 83 is slidably connected to the top of the inner groove of the vertical frame 84. A long plate 85 is fixedly installed on the bottom of the vertical frame 84, and one end of the long plate 85 passes through the inside of the concave card frame 81, and a round shaft 2 86 is fixedly installed on the bottom surface of the other end. The round shaft 2 86 is movably connected to a movable plate 87, and the movable plate 87 is slidably connected to the surface of the limit frame 2 and is located on one side of the concave card frame 81. A Z-shaped limit groove 88 is provided on the surface of the movable plate 87, and the round shaft 2 86 is slidably connected inside the limit groove 88. A concave push frame 89 is fixedly installed on the rear ends of the two groups of movable plates 87, and a cylinder 810 is provided at the center of the rear end of the concave push frame 89 through a push rod, and the cylinder 810 is fixedly installed at the center of the top surface of the bottom frame 1 through a machine base;

[0039] When adjusting the position of the pile surface cleaning assembly 7, firstly, the cylinder 810 is started, which uses the push rod to pull the concave push frame 89 and the two sets of movable plates 87 to slide backward, and the two sets of movable plates 87 and the two sets of long plates 85 move relative to each other, and the circular shaft 86 slides along the inner part of the limiting groove 88. The circular shaft 86 pushes the long plate 85 to move inside the concave clamping frame 81 due to the pressure of the tortuous inner wall of the limiting groove 88, and the vertical frame 84 moves synchronously with the long plate 85, forcing the end of the L-shaped lifting rod 82 to be lifted, and the circular shaft 1 83 slides along the inner groove of the vertical frame 84, and the other end of the L-shaped lifting rod 82 pulls the slide plate 202, the through frame 3 and the double-axis ring 4 to lift upward, thereby lifting the pile surface cleaning assembly 7 upward until it is aligned with the defective area at a higher position, further improving the cleaning effect of the pile foundation and the subsequent repair efficiency;

[0040] On the contrary, if the two sets of movable plates 87 are pushed forward, the second round shaft 86 will slide in the opposite direction along the inner limit groove 88, and the L-shaped lifting rod 82 will flip in the opposite direction. At the same time, the slide plate 202, the through frame 3 and the double-axis ring 4 will sink downward.

[0041] This structure can adjust the height and position of the pile surface cleaning assembly 7 according to the height of the defective area on the pile foundation surface, thereby achieving cleaning of defective areas at different heights, further improving the practicability of the device.

[0042] When the present invention is used, the double-axis ring 4 is first sleeved on the outside of the pile foundation, and the two groups of through frames 3 are respectively located on both sides of the pile foundation. The spacing between the two groups of scraping strips 304 is adjusted according to the diameter of the pile foundation. The larger the outer diameter of the pile foundation, the more the two groups of scraping strips 304 are resisted by the through frame 3, and the resisting tube 302 is pushed to be inserted into the inserting tube 301 until the resisting tube 302 cannot be moved. Then, the pile surface cleaning component 7 is rotated to the defect on the surface of the pile foundation by rotating the bottom frame 1.

[0043] Then, the motor 501 is started, and one of the limit gears 5 is driven to rotate, and the limit gear 5 is meshed with the double-axis ring 4 to realize self-rotation, and the double-axis ring 4 is successively rotated into the inside of the rotating drum 72, and a plurality of abutting columns 402 rotate with the double-axis ring 4, and mesh with the conical slot 73 to realize the rotation of the rotating drum 72, and a plurality of groups of shovel blades 74 rotate with the rotating drum 72, and the tip of the shovel blades 74 is used to scrape and remove the concrete slag on the surface of the pile foundation. After the preliminary cleaning is completed, the bottom frame 1 is rotated, and the two groups of scraping strips 304 rotate along the surface of the pile body, and it is convenient to further scrape and clean the rubble in the defective area;

[0044] Furthermore, according to the height of the defective area on the pile foundation surface, the height and position of the pile surface cleaning component 7 are adjusted, and the cylinder 810 is started. The push rod is used to pull the concave push frame 89 and the two sets of movable plates 87 backward, and the two sets of movable plates 87 and the two sets of long plates 85 move relative to each other, and the circular shaft 86 slides along the inside of the limiting groove 88. The circular shaft 86 pushes the long plate 85 to move into the concave clamping frame 81 due to the pressure from the tortuous inner wall of the limiting groove 88, and the vertical frame 84 moves synchronously with the long plate 85, forcing the end of the L-shaped lifting rod 82 to be pressed and warped, and the circular shaft 1 83 slides along the inner groove of the vertical frame 84, and the other end of the L-shaped lifting rod 82 pulls the slide plate 202, the through frame 3 and the double-axis ring 4 to lift up, thereby lifting the pile surface cleaning component 7 upward until it is aligned with the defective area at a higher position, and then repeating the above cleaning steps.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. 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 pile foundation fixing and repairing device for civil engineering, comprising a bottom frame (1) in the shape of a Chinese character "J" and two groups of limit frames (2) in an L-shaped structure, wherein pulley blocks are arranged at four groups of corners at the bottom of the bottom frame (1), and the two groups of limit frames (2) are respectively fixedly mounted at two sides of the front end of the bottom frame (1), and the two groups of limit frames (2) are mirror-symmetrical with respect to the central axis of the bottom frame (1), characterized in that: The two groups of L-shaped limit frames (2) are provided with vertical grooves (201) on opposite sides, and the bottom end of the vertical groove (201) is slidably connected with a slide plate (202). The two groups of slide plates (202) are extended to the outer wall of the vertical groove (201) and are respectively fixed with rectangular through frames (3). The two groups of through frames (3) are movably sleeved with a double-axis ring (4). A limit gear (5) is provided inside each group of the through frames (3) and at both sides of the double-axis ring (4). The top surface of each group of the limit gears (5) is rotatably connected to the top inner wall of the through frame (3) through a rotating shaft. The top of one group of the rotating shafts extends to the outside of the through frame (3) and is provided with a motor (501).

2. A device for fixing and repairing pile foundations in civil engineering and construction engineering according to claim 1, characterized in that: A tooth groove group (401) is equidistantly arranged at the middle ring groove of the outer ring surface of the double-axis ring (4), and the tooth groove group (401) is meshed with two groups of limit gears (5). A plurality of groups of upper narrow and lower wide support columns (402) are equidistantly fixedly installed at the ring frame on the top surface of the double-axis ring (4). A pile surface cleaning assembly (7) is arranged at one side of the front end surface of the two groups of through frames (3) through an L-shaped connecting rod (6). A lifting assembly (8) is arranged inside each group of limit frames (2) and located on one side of the slide plate (202).

3. A device for fixing and repairing pile foundations in civil engineering and construction engineering according to claim 2, characterized in that: An insert tube (301) is provided through the centers of the opposite surfaces of the two groups of through frames (3), and one end of the insert tube (301) extends to the inside of the through frame (3) and abuts against the inner wall of the double-axis ring (4), and a resisting tube (302) is provided through the inside of the insert tube (301), a spring damping shock absorber (303) is provided between one end of the resisting tube (302) and the inner wall of the insert tube (301), and the other end of the resisting tube (302) extends to the outside of the insert tube (301) and is fixedly installed with a scraper strip (304).

4. According to a pile foundation fixing and repairing device for civil engineering projects as described in claim 2, the pile surface cleaning component (7) is sleeved and installed at the front end of the double-axis ring (4), and the pile surface cleaning component (7) includes two groups of fixed rings (71), and the two groups of fixed rings (71) are fixedly installed at the end position of the L-shaped connecting rod (6) close to one side of the double-axis ring (4), and a rotating cylinder (72) is sleeved between the two groups of fixed rings (71), and the two groups of rotating cylinders (72) are respectively sleeved at the front and rear end centers of the double-axis ring (4), and the inner wall of the rotating cylinder (72) is equidistantly provided with a plurality of groups of conical grooves (73), and the conical grooves (73) are adapted to the abutment column (402).

5. A device for fixing and repairing pile foundations in civil engineering and construction engineering according to claim 4, characterized in that: A plurality of groups of inclined shovel blades (74) are arranged outside the rotating cylinder (72) and are equidistantly intersected between the two groups of fixed collars (71), and one end of the shovel blade (74) away from the rotating cylinder (72) is arranged in an oblique section. A sliding shaft (75) is fixedly installed at the middle section of both sides of the shovel blade (74), and one end of the sliding shaft (75) is slidably connected to the inside of an arc groove (76) arranged on the inner ring wall of the fixed collar (71).

6. A device for fixing and repairing pile foundations in civil engineering and construction engineering according to claim 2, characterized in that: The two groups of lifting assemblies (8) are mirror-symmetrical about the central axis of the double-axis ring (4). The lifting assemblies (8) include a concave card frame (81), and an L-shaped lifting rod (82) is rotatably connected to the top of the concave card frame (81) through a rotating shaft. One end of the L-shaped lifting rod (82) is hinged to the corresponding side of the slide plate (202), and a round shaft 1 (83) is fixedly installed on the front end surface of the L-shaped lifting rod (82) and away from the slide plate (202). The outer part of the round shaft 1 (83) is sleeved with a vertical frame (84), and the round shaft 1 (83) is slidably connected to the top of the inner groove of the vertical frame (84). A long plate (85) is fixedly installed at the bottom of the vertical frame (84), and one end of the long plate (85) passes through the inside of the concave card frame (81), and a round shaft 2 (86) is fixedly installed on the bottom surface of the other end.

7. A device for fixing and repairing pile foundations in civil engineering and construction according to claim 6, characterized in that: The second circular shaft (86) is movably connected with a movable plate (87), and the movable plate (87) is slidably connected to the surface of the limit frame (2) and is located at one side of the concave clamping frame (81). The surface of the movable plate (87) is provided with a limit groove (88) of a Z-shaped structure, and the second circular shaft (86) is slidably connected inside the limit groove (88). The rear ends of the two groups of movable plates (87) are commonly fixedly installed with a concave push frame (89), and a cylinder (810) is provided at the center of the rear end of the concave push frame (89) through a push rod, and the cylinder (810) is fixedly installed at the center of the top surface of the bottom frame (1) through a machine base.

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