CN219568865U - Pile pulling device - Google Patents

Abstract

The utility model provides a pile pulling device. The pile pulling device comprises a supporting frame; the adjusting structure is connected to the inside of the supporting frame in a sliding manner and comprises longitudinal bars, side plates, transverse bars, parking teeth and steering wheels; a parking structure; the side wall of the shock absorption structure is fixed on the side wall of the transverse bar, and the shock absorption structure comprises a supporting plate and a shock absorption outer cylinder; the connecting structure is arranged in the damping outer cylinder and comprises a sleeve, an adjusting ring, a stud, a contact wheel, an adjusting toothed sleeve and a transmission toothed ring; pile pulling structure, pile pulling structure sliding connection in telescopic inside, pile pulling structure includes body, barb and spring pivot. The pile pulling device provided by the utility model has the advantages of enabling the steel sleeve to be aligned quickly and keeping vertical sinking.

Description

Pile pulling device

Technical Field

The utility model relates to the technical field of pile pulling devices, in particular to a pile pulling device.

Background

At present, pile pulling in domestic markets mainly comprises pile pulling by a vibrating hammer water-flushing construction method (short piles within 10 meters in length) and pile pulling by a full-rotation full-sleeve construction method (short piles within 10 meters in length). The pile pulling method of the vibrating hammer water flushing method is commonly applied. In the construction of the water flushing method, a large amount of high-pressure water and high-pressure air are utilized to flush soil around the piles into slurry while the steel sleeve is vibrated by the high-power vibrating hammer, after the soil is flushed, the steel sleeve is pulled out by a pulling machine, and then the piles are poured out.

In the construction process, firstly, a driving and pulling machine is required to lift the steel sleeve to move to the pile top of the pile to be pulled out, and then in the sinking process, the verticality of the steel sleeve is required to be controlled, so that the position of the steel sleeve is maintained in the whole sinking process. The two processes are difficult to operate, so that a beating and pulling machine controller is required to have sufficient experience, otherwise, the deviation or pose of the settlement position of the steel sleeve is very easy to cause, and the construction quality is influenced; and a great deal of construction time is required to be spent on calibrating the position and the perpendicularity of the steel sleeve, and the construction progress is seriously dragged and slowed down.

Therefore, it is necessary to provide a new pile pulling device to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a pile pulling device capable of enabling a steel sleeve to be aligned and to keep vertical sinking.

The pile pulling device provided by the utility model comprises: a support frame; the adjusting structure is slidably connected to the inside of the supporting frame and comprises a longitudinal bar, side plates, a transverse bar, parking teeth and steering wheels, wherein the side walls of the longitudinal bars are sequentially connected in a rotating mode, two ends of the two side plates are symmetrically slidably connected to the inner side wall of the supporting frame, the side wall of the longitudinal bar at the most edge in each group is fixed to the side wall of one side plate, the side walls of the transverse bars are sequentially connected in a rotating mode, two ends of the transverse bars are respectively connected to the inside of the other side of the two side plates in a sliding mode, the parking teeth are arranged on the surfaces of the longitudinal bars and the transverse bars, and eight steering wheels are respectively connected to the inside of the supporting frame in a symmetrical rotating mode; the parking structure is arranged on the outer side wall of the supporting frame; the side wall of the damping structure is fixed on the side wall of the transverse bar, the damping structure comprises a supporting plate and a damping outer cylinder, two opposite sides of the supporting plate are respectively fixed on the side walls of the two transverse bars, the other two sides of the supporting plate are respectively connected inside the other sides of the two side plates in a sliding manner, and the supporting plate is fixed on the top end of the damping outer cylinder; the connecting structure is arranged in the damping outer cylinder, the connecting structure comprises a sleeve, an adjusting ring, studs, abutting wheels, an adjusting toothed sleeve and a transmission toothed ring, the sleeve is arranged in the damping outer cylinder, the adjusting ring is rotationally connected in the top end of the sleeve, each group of four studs symmetrically penetrate through and are in threaded connection with the inner part of the side wall of the sleeve, the two groups of studs vertically symmetrically penetrate through and are in threaded connection with the inner part of the side wall of the sleeve, each abutting wheel is arranged at the bottom end of each stud, each adjusting toothed sleeve corresponds to the outer side wall of each stud respectively, the transmission toothed ring is rotationally connected in the inner part of the sleeve, and the top surface and the bottom surface of the transmission toothed ring are respectively in meshed connection with the upper group and the lower group of adjusting toothed sleeve; pile pulling structure, pile pulling structure sliding connection in telescopic inside, pile pulling structure include body, barb and spring pivot, body sliding connection in telescopic inside, and eight contradict the wheel conflict and rotate connect in the outer wall of body, a plurality of the barb symmetry rotate connect in the inner wall of body, a plurality of the spring pivot respectively with every the barb rotates to be connected, and every the barb passes through the spring pivot with the inner wall of body rotates to be connected.

Preferably, the other ends of the longitudinal strips are slidably connected to the inner side walls of the supporting frame, and the two groups of longitudinal strips are symmetrically slidably connected to two sides of the inner portion of the supporting frame respectively.

Preferably, the cross bars are slidably connected to the inner side walls of the supporting frame, and the cross bars are perpendicular to the longitudinal bars.

Preferably, the cross section of the steering wheel is regular hexagon, and each group of two steering wheels is respectively and correspondingly connected with two plate-shaped objects formed by a plurality of longitudinal bars and two plate-shaped objects formed by a plurality of transverse bars in a rotating way.

Preferably, the parking structure comprises sliding grooves, sliding blocks, screws, side parking feet and parking feet, wherein the four sliding grooves are symmetrically arranged on the four sides of the outer side of the supporting frame respectively, each two sliding blocks are correspondingly and slidingly connected to the inner parts of the four sliding grooves respectively, each screw is in threaded connection with the inner part of each sliding block, each side parking foot is correspondingly and slidingly connected to the inner part of each sliding block, each side parking foot is correspondingly and rotationally connected with each screw, each parking foot is rotationally connected to the bottom of each screw, and the bottom of each parking foot is respectively meshed and connected with the parking teeth on the surfaces of the longitudinal bars and the transverse bars.

Preferably, the damping structure further comprises hydraulic dampers, pistons and supporting wheels, wherein four hydraulic dampers are symmetrically fixed on the outer side wall of the damping outer cylinder, four pistons are respectively correspondingly and slidingly connected in the hydraulic dampers, four pistons are symmetrically fixed on the outer side wall of the sleeve, eight supporting wheels are respectively installed on the bottom surface of each hydraulic damper in groups, and the supporting wheels are slidingly connected in the supporting frame.

Preferably, each adjusting tooth sleeve is rotatably connected to the inside of the sleeve, and the bottom end of the adjusting ring is in meshed connection with the four adjusting tooth sleeves above.

Compared with the related art, the pile pulling device provided by the utility model has the following beneficial effects:

the utility model provides a pile pulling device, which is characterized in that the upper and lower eight abutting wheels simultaneously extrude the outer wall of a pipe body through adjusting a connecting structure, so that the pipe body is vertically positioned at the center of a sleeve, and the vertical sinking of the pipe body can be always kept by utilizing the abutting of the upper and lower four abutting wheels, thereby effectively preventing the pipe body from tilting; then through promoting shock-absorbing structure with connection structure utilizes indulge the strip with the horizontal bar cooperates jointly, realizes fast, accurate and smooth removal the body reaches the purpose of appointed position, shortens the counterpoint time greatly, improves the efficiency of construction. This has the advantage of enabling the steel casing to be quickly aligned and to remain vertically submerged.

Drawings

FIG. 1 is a schematic view of a pile extractor according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the front overall section shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A shown in FIG. 2;

FIG. 4 is an enlarged schematic view of the portion B shown in FIG. 2;

fig. 5 is a schematic structural view of a cross section of the shock absorbing structure and the connecting structure shown in fig. 2.

Reference numerals in the drawings: 1. the device comprises a supporting frame, 2, an adjusting structure, 21, a longitudinal bar, 22, a sideboard, 23, a transverse bar, 24, parking teeth, 25, a steering wheel, 3, a parking structure, 31, a chute, 32, a sliding block, 33, a screw rod, 34, a side parking foot, 35, a parking foot, 4, a damping structure, 41, a supporting plate, 42, a damping outer cylinder, 43, a hydraulic damper, 44, a piston, 45, a supporting wheel, 5, a connecting structure, 51, a sleeve, 52, an adjusting ring, 53, a stud, 54, a collision wheel, 55, an adjusting tooth sleeve, 56, a transmission tooth ring, 6, a pile pulling structure, 61, a pipe body, 62, a barb, 63 and a spring rotating shaft.

Description of the embodiments

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, fig. 1 is a schematic structural diagram of a pile pulling device according to a preferred embodiment of the present utility model; FIG. 2 is a schematic view of the structure of the front overall section shown in FIG. 1; FIG. 3 is an enlarged schematic view of the portion A shown in FIG. 2; FIG. 4 is an enlarged schematic view of the portion B shown in FIG. 2; fig. 5 is a schematic structural view of a cross section of the shock absorbing structure and the connecting structure shown in fig. 2. A pile pulling apparatus comprising: a support frame 1; the adjusting structure 2 is slidably connected to the inside of the supporting frame 1, the adjusting structure 2 comprises longitudinal strips 21, side plates 22, transverse strips 23, parking teeth 24 and steering wheels 25, the side walls of a plurality of the longitudinal strips 21 are sequentially and rotatably connected with each other, two ends of the two side plates 22 are symmetrically and slidably connected to the inner side wall of the supporting frame 1, the side wall of the most marginal longitudinal strip 21 in each group is fixed to the side wall of one side plate 22, the side walls of a plurality of the transverse strips 23 are sequentially and rotatably connected with each other, two ends of a plurality of the transverse strips 23 are respectively and slidably connected to the inner sides of the other side plates 22, the parking teeth 24 are arranged on the surfaces of the longitudinal strips 21 and the transverse strips 23, and eight steering wheels 25 are respectively and symmetrically rotatably connected to the inner sides of the supporting frame 1; the parking structure 3 is arranged on the outer side wall of the support frame 1; a shock-absorbing structure 4, wherein the side wall of the shock-absorbing structure 4 is fixed on the side wall of the cross bar 23, the shock-absorbing structure 4 comprises a supporting plate 41 and a shock-absorbing outer cylinder 42, two opposite sides of the supporting plate 41 are respectively fixed on the side walls of the two cross bars 23, the other two sides of the supporting plate 41 are respectively connected inside the other sides of the two side plates 22 in a sliding manner, and the supporting plate 41 is fixed on the top end of the shock-absorbing outer cylinder 42; the connecting structure 5 is arranged in the damping outer cylinder 42, the connecting structure 5 comprises a sleeve 51, an adjusting ring 52, studs 53, abutting wheels 54, adjusting tooth sleeves 55 and a transmission tooth ring 56, the sleeve 51 is arranged in the damping outer cylinder 42, the adjusting ring 52 is rotationally connected in the top end of the sleeve 51, each group of four studs 53 symmetrically penetrates through and is in threaded connection with the inner side wall of the sleeve 51, two groups of studs 53 vertically symmetrically penetrate through and are in threaded connection with the inner side wall of the sleeve 51, each abutting wheel 54 is arranged at the bottom end of each stud 53, each adjusting tooth sleeve 55 corresponds to the outer side wall of each stud 53, the transmission tooth ring 56 is rotationally connected in the inner side of the sleeve 51, and the top surface and the bottom surface of the transmission tooth ring 56 are respectively meshed with the upper group of adjusting tooth sleeves 55 and the lower group of adjusting tooth sleeves 55; pile pulling structure 6, pile pulling structure 6 sliding connection in the inside of sleeve 51, pile pulling structure 6 includes body 61, barb 62 and spring pivot 63, body 61 sliding connection in the inside of sleeve 51, and eight conflict wheel 54 conflict and rotate connect in the outer wall of body 61, a plurality of barb 62 symmetry rotate connect in the inner wall of body 61, a plurality of spring pivot 63 respectively with every barb 62 rotates to be connected, and every barb 62 passes through spring pivot 63 with the inner wall of body 61 rotates to be connected.

In the implementation process, as shown in fig. 1, the other ends of the longitudinal strips 21 are slidably connected to the inner side wall of the support frame 1, and two groups of the longitudinal strips 21 are symmetrically slidably connected to two sides of the interior of the support frame 1. When the supporting plate 41 is pushed forward and backward, one of the front and rear sides of the longitudinal bar 21 slides out of the supporting frame 1, and the other side of the longitudinal bar 21 slides into the supporting frame 1, so that the damping structure 4 and the connecting structure 5 drive the pipe body 61 to move longitudinally.

In the implementation process, as shown in fig. 1 and 2, a plurality of the cross bars 23 are slidably connected to the inner side wall of the support frame 1, and the cross bars 23 are perpendicular to the cross bars 23. When the supporting plate 41 is pushed left and right, one of the left and right sides of the cross bar 23 slides out of the supporting frame 1, and the other side of the left and right sides of the cross bar 23 slides into the supporting frame 1, so that the shock-absorbing structure 4 and the connecting structure 5 drive the pipe body 61 to move transversely.

In the implementation process, as shown in fig. 2, the cross section of the steering wheel 25 is regular hexagon, and each group of two steering wheels 25 is respectively and correspondingly connected with two plate-shaped objects formed by a plurality of longitudinal bars 21 and two plate-shaped objects formed by a plurality of transverse bars 23 in a rotating manner. The length of each side of the steering wheel 25 is exactly equal to the width of each longitudinal bar 21 and each transverse bar 23, so that the steering wheel 25 is better attached to each longitudinal bar 21 and each transverse bar 23, and the longitudinal bars 21 or the transverse bars 23 are driven to change the sliding direction, so that the longitudinal bars 21 or the transverse bars 23 can freely stretch out and draw back.

In the implementation process, as shown in fig. 1 and 4, the parking structure 3 includes a sliding groove 31, sliding blocks 32, a screw 33, side parking legs 34 and parking legs 35, where four sliding grooves 31 are symmetrically disposed on four sides of the outer side of the supporting frame 1, each two sliding blocks 32 are correspondingly slidably connected to the inner parts of the four sliding grooves 31, each screw 33 is screwed into each sliding block 32, each side parking leg 34 is correspondingly slidably connected to the inner part of each sliding block 32, each side parking leg 34 is correspondingly rotatably connected to each screw 33, each parking leg 35 is rotatably connected to the bottom of each screw 33, and the bottom of each parking leg 35 is respectively engaged with the parking teeth 24 on the surfaces of the longitudinal bars 21 and the transverse bars 23. The parking structure 3 is provided to limit the sliding of the longitudinal bar 21 or the transverse bar 23 by the parking structure 3 after the connecting structure 5 drives the pipe body 61 to move to a proper position, thereby achieving the purpose of locking the shock absorbing structure 4 and the connecting structure 5.

In the specific implementation process, as shown in fig. 2 and 5, the shock absorbing structure 4 further includes hydraulic shock absorbers 43, pistons 44 and supporting wheels 45, four hydraulic shock absorbers 43 are symmetrically fixed on the outer side wall of the shock absorbing outer cylinder 42, four pistons 44 are respectively and correspondingly slidably connected to the inner side of each hydraulic shock absorber 43, four pistons 44 are symmetrically fixed on the outer side wall of the sleeve 51, eight supporting wheels 45 are respectively and integrally mounted on the bottom surface of each hydraulic shock absorber 43, and the supporting wheels 45 are slidably connected to the inner side of the supporting frame 1. The damping effect of the hydraulic damper 43 reduces the influence of vibration generated in the operation of the pipe body 61 on the connecting structure 5, so that the supporting plate 41 is not easy to shake, thereby preventing the position of the supporting plate 41 from shifting and avoiding the pipe body 61 from being incapable of keeping vertical sinking; the supporting wheels 45 play a role in supporting the whole of the shock-absorbing structure 4 and the connecting structure 5, and are more smooth and portable when adjusting the positions of the shock-absorbing structure 4 and the connecting structure 5.

In the specific implementation, as shown in fig. 2 and 3, each of the adjusting tooth sleeves 55 is rotatably connected to the inside of the sleeve 51, and the bottom end of the adjusting ring 52 is engaged with the four upper adjusting tooth sleeves 55. The adjusting ring 52 is rotated to drive the upper four adjusting tooth sleeves 55 to rotate, so that the upper four studs 53 are synchronously driven to slide, and the abutting wheels 54 are driven to press the outer wall of the pipe body 61; simultaneously, the transmission toothed ring 56 is utilized to drive the lower four adjusting toothed sleeves 55 to reversely rotate, the lower four studs 53 are also utilized to drive the abutting wheels 54 to press the outer wall of the pipe body 61, and the pipe body 61 is always vertical through the extrusion of the upper eight abutting wheels 54 and the lower eight abutting wheels 54.

The pile pulling device provided by the utility model has the following working principle:

the support frame 1 is arranged above the pile top of the pile to be removed, the pipe body 61 is lifted by a drawing machine and is inserted into the sleeve 51, the adjusting ring 52 is rotated firstly, the adjusting ring 52 synchronously drives the upper four studs 53 to slide through the adjusting gear sleeve 55 while rotating in the sleeve 51, the upper four studs 53 synchronously drive the abutting wheels 54 to slide towards the sleeve 51, meanwhile, the upper four adjusting gear sleeve 55 drives the driving gear ring 56 to rotate, the driving gear ring 56 synchronously drives the lower four studs 53 to slide, the lower four studs 53 synchronously drive the abutting wheels 54 to slide towards the sleeve 51, the upper eight abutting wheels 54 simultaneously squeeze the outer wall of the pipe body 61, so that the pipe body 61 is gradually and vertically positioned at the central position of the sleeve 51, and finally the pipe body 61 is abutted by the abutting wheels 54 and cannot shake; then pushing the sleeve 51, the connecting structure 5 drives the pipe body 61 to move above the pile top of the pile to be removed, in the process, the connecting structure 5 drives the pipe body 61 to move and simultaneously drives the supporting plate 41 and the damping outer cylinder 42 to move, the damping outer cylinder 42 drives the hydraulic damper 43 to move in the supporting frame 1, the supporting wheel 45 is a universal wheel, the hydraulic damper 43 drives the supporting wheel 45 to roll in the supporting frame 1, the hydraulic structure respectively drives the transverse bar 23 and the side plate 22 to move, when the supporting plate 41 moves forwards and backwards, the two side plates 22 respectively drive the two groups of longitudinal bars 21 to slide, one of the front side and the rear side of the longitudinal bars 21 slides out of the supporting frame 1 (according to the position and the direction of the attached drawing 1, the other side of the longitudinal bars 21 slides into the supporting frame 1 and drives the steering wheel 25 connected with the rotating side of the longitudinal bars to rotate, so that the longitudinal bars 21 drive the steering wheel 25 connected with the rotating side of the rotating wheels to rotate, and the longitudinal bars 21 drive the longitudinal bars 21 to slide, thereby realizing the longitudinal movement of the connecting structure 4 and the connecting structure 5; when the supporting plate 41 moves left and right, two sides of the supporting plate 41 respectively drive two groups of cross bars 23 to slide while sliding inside the side walls of the side plates 22, one of the left and right sides of the cross bars 23 slides out of the supporting frame 1 to drive the steering wheel 25 rotationally connected with the cross bars to rotate, the other side of the cross bars 23 slides into the supporting frame 1 to drive the steering wheel 25 rotationally connected with the steering wheel 25 to rotate, so that the purpose that the shock absorption structure 4 and the connecting structure 5 drive the pipe body 61 to move transversely is achieved, and the longitudinal bars 21 and the cross bars 23 cooperate together to rapidly and accurately move the pipe body 61 to a designated position. After the pipe body 61 moves to a specified position, each sliding block 32 is slid first, the sliding blocks 32 slide in the sliding grooves 31, so that each sliding block 32 slides to a proper position, then the screw rod 33 is rotated, the screw rod 33 drives the side standing feet 34 and the standing feet 35 to slide in the sliding blocks 32 respectively, meanwhile, the side standing feet 34 and the standing feet 35 rotate relative to the screw rod 33, finally, the side standing feet 34 tightly abut against the inner side walls of the sliding grooves 31, so that the friction force between the side standing feet 34 and the sliding grooves 31 is large enough, the sliding blocks 32 cannot slide in the sliding grooves 31, and meanwhile, the bottom surfaces of the standing feet 35 tightly abut against the surfaces of the longitudinal strips 21 and the transverse strips 23 and are in meshed connection with the standing teeth 24 on the surfaces of the longitudinal strips 21 and the transverse strips 23, so that the longitudinal strips 21 and the transverse strips 23 cannot slide, and the purpose of locking the shock absorbing structure 4 and the connecting structure 5 is achieved. The driving and pulling machine drives the pipe body 61 to sink through vibration, the barbs 62 on the inner wall of the pipe body 61 are abutted against the pulling pile, so that the pulling pile is rotated upwards, the spring rotating shaft 63 rotates and is stressed, the barbs 62 are retracted into the inner wall of the pipe body 61, the pipe body 61 is enabled to sink smoothly, and finally the pulling pile is wrapped; in this process, the abutting wheels 54 rotate relative to the surface of the pipe body 61, and the four abutting wheels 54 abut against the outer wall of the pipe body 61, so that the pipe body 61 can always keep vertical sinking, and the pipe body 61 is effectively prevented from tilting, meanwhile, the vibration of the pipe body 61 is transmitted to the sleeve 51 through the abutting wheels 54 and the stud 53, the sleeve 51 drives the piston 44 to slide in the hydraulic damper 43, and the influence of the vibration generated in the operation of the pipe body 61 on the connecting structure 5 is reduced through the damping effect of the hydraulic damper 43, so that the vibration of the supporting plate 41 is not easy to shake, the position deviation of the supporting plate 41 is prevented, and the situation that the pipe body 61 cannot keep vertical sinking is avoided; when the pile is pulled out, the driving pulling machine drives the pipe body 61 to move upwards, the spring rotating shaft 63 in the pipe body reversely rotates to drive the barbs 62 to be unfolded, a plurality of barbs 62 are inserted into the side wall of the pile (because of rough surface of the pile to be pulled out), and the bottom end of the pile to be pulled out is lifted up, so that the pile to be pulled out ascends along with the pipe body 61; at the same time, the abutting wheel 54 rotates relative to the surface of the pipe body 61, and the hydraulic damper 43 continuously weakens the vibration influence of the pipe body 61 until the pipe body 61 is separated from the abutting wheel 54 and is separated from the sleeve 51. The device has the advantages of enabling the steel sleeve to be aligned quickly and keeping vertical sinking.

Compared with the related art, the pile pulling device provided by the utility model has the following beneficial effects:

the utility model provides a pile pulling device, which is characterized in that the upper and lower eight abutting wheels 54 simultaneously extrude the outer wall of a pipe body 61 by adjusting a connecting structure 5, so that the pipe body 61 is vertically positioned in the center of a sleeve 51, and the pipe body 61 can be always kept vertically sinking by utilizing the abutting of the upper and lower four abutting wheels 54, thereby effectively preventing the pipe body 61 from tilting; then through promoting shock-absorbing structure 4 with connection structure 5 utilizes indulge strip 21 with horizontal bar 23 cooperates jointly, realizes quick, accurate and smooth removal body 61 reaches the purpose of appointed position, shortens the counterpoint time greatly, improves the efficiency of construction. This has the advantage of enabling the steel casing to be quickly aligned and to remain vertically submerged.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. A pile pulling apparatus, comprising:

a support (1);

the adjusting structure (2), the adjusting structure (2) is slidably connected to the inside of the supporting frame (1), the adjusting structure (2) comprises longitudinal strips (21), side plates (22), transverse strips (23), parking teeth (24) and steering wheels (25), the side walls of a plurality of the longitudinal strips (21) are sequentially and rotatably connected with each other, two ends of the two side plates (22) are symmetrically and slidably connected to the inner side walls of the supporting frame (1), the side wall of the longitudinal strip (21) at the most edge in each group is fixed to one side wall of the side plates (22), the side walls of a plurality of the transverse strips (23) are sequentially and rotatably connected with each other, two ends of the transverse strips (23) are respectively and slidably connected to the inner sides of the other sides of the two side plates (22), the parking teeth (24) are arranged on the surfaces of the longitudinal strips (21) and the transverse strips (23), and eight steering wheels (25) are respectively and symmetrically and rotatably connected to the inner sides of the supporting frame (1);

the parking structure (3) is arranged on the outer side wall of the supporting frame (1);

the side walls of the shock absorption structures (4) are fixed on the side walls of the transverse bars (23), the shock absorption structures (4) comprise supporting plates (41) and shock absorption outer cylinders (42), two opposite sides of each supporting plate (41) are respectively fixed on the side walls of the two transverse bars (23), the other two sides of each supporting plate (41) are respectively and slidably connected inside the other sides of the two side plates (22), and each supporting plate (41) is fixed on the top end of each shock absorption outer cylinder (42);

the connecting structure (5), the connecting structure (5) is built in the damping outer cylinder (42), the connecting structure (5) comprises a sleeve (51), an adjusting ring (52), studs (53), a collision wheel (54), an adjusting toothed sleeve (55) and a transmission toothed ring (56), the sleeve (51) is built in the damping outer cylinder (42), the adjusting ring (52) is rotationally connected in the top end of the sleeve (51), each group of four studs (53) symmetrically penetrates through and is in threaded connection with the inside of the side wall of the sleeve (51), two groups of studs (53) vertically symmetrically penetrate through and are in threaded connection with the inside of the side wall of the sleeve (51), each collision wheel (54) is mounted at the bottom end of each stud (53), each adjusting toothed sleeve (55) corresponds to the outer side wall of each stud (53), the transmission toothed ring (56) is rotationally connected in the inside of the sleeve (51), and the top surface and the bottom surface of the transmission toothed ring (56) are respectively meshed with the upper and lower groups of adjusting toothed sleeves (55);

pile pulling structure (6), pile pulling structure (6) sliding connection in the inside of sleeve (51), pile pulling structure (6) include body (61), barb (62) and spring pivot (63), body (61) sliding connection in the inside of sleeve (51), and eight contradict wheel (54) contradict and rotate connect in the outer wall of body (61), a plurality of barb (62) symmetry rotate connect in the inner wall of body (61), a plurality of spring pivot (63) respectively with every barb (62) rotate to be connected, and every barb (62) pass through spring pivot (63) with the inner wall of body (61) rotates to be connected.

2. Pile pulling device according to claim 1, characterized in that the other ends of several longitudinal strips (21) are slidingly connected to the inner side wall of the support frame (1), and that two sets of several longitudinal strips (21) are symmetrically slidingly connected to the inner sides of the support frame (1), respectively.

3. Pile extracting device according to claim 2, characterized in that several of the cross bars (23) are slidingly connected to the inner side walls of the supporting frame (1), and that the cross bars (23) are mutually perpendicular to the longitudinal bars (21).

4. A pile extractor according to claim 3, wherein the steering wheels (25) are of regular hexagonal cross section, and each set of two steering wheels (25) is in rotational connection with two plates of longitudinal strips (21) and two plates of transverse strips (23), respectively.

5. Pile pulling device according to claim 4, characterized in that the parking structure (3) comprises sliding grooves (31), sliding blocks (32), screw rods (33), side parking feet (34) and parking feet (35), wherein four sliding grooves (31) are symmetrically arranged on the outer four sides of the supporting frame (1), each two sliding blocks (32) are correspondingly and slidingly connected to the inner parts of the four sliding grooves (31), each screw rod (33) is in threaded connection with the inner part of each sliding block (32), each side parking foot (34) is correspondingly and slidingly connected to the inner part of each sliding block (32), each side parking foot (34) is correspondingly and rotationally connected with each screw rod (33), each parking foot (35) is rotationally connected to the bottom of each screw rod (33), and the bottom of each parking foot (35) is respectively meshed with the parking teeth (24) on the surfaces of the longitudinal strips (21) and the transverse strips (23).

6. Pile pulling device according to claim 1, characterized in that the damping structure (4) further comprises hydraulic dampers (43), pistons (44) and supporting wheels (45), four hydraulic dampers (43) are symmetrically fixed on the outer side wall of the damping outer cylinder (42), four pistons (44) are respectively correspondingly and slidingly connected to the inside of each hydraulic damper (43), four pistons (44) are symmetrically fixed on the outer side wall of the sleeve (51), eight supporting wheels (45) are respectively installed on the bottom surface of each hydraulic damper (43) in groups, and the supporting wheels (45) are slidingly connected to the inside of the supporting frame (1).

7. Pile extracting device according to claim 6, characterized in that each of the adjusting tooth sleeves (55) is rotatably connected to the inside of the sleeve (51), and the bottom end of the adjusting ring (52) is in engagement with the upper four adjusting tooth sleeves (55).