Construction foundation pile lifting device with quick loading and unloading function and lifting method

Abstract

The present invention provides a construction pile lifting device and lifting method with quick loading and unloading functions; the lifting device includes a suspension assembly and two sets of positioning clamping mechanisms symmetrically hung on the suspension assembly through a suspension rod or a suspension rope, the positioning clamping mechanism includes a positioning ring and a plurality of clamping support blocks distributed in an annular shape on the inner ring of the positioning ring, each clamping support block is installed on the inner ring surface of the positioning ring through a fixing frame, the fixing frame is fixedly arranged on the inner ring surface of the positioning ring, and the clamping support block is connected to the fixing frame through a second elastic device; an extrusion type pushing mechanism is arranged between each clamping support block and the inner ring surface of the positioning ring, the inner surface of the clamping support block is an arc surface, a first placement groove is provided on the inner arc surface of the clamping support block, and a telescopic support moving assembly is arranged at the first placement groove. The present invention is convenient and quick for clamping and removing the pile, while reducing the degree of damage caused by impact.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and more specifically, to a construction pile hoisting device with a quick loading and unloading function and a method for hoisting piles using the device. Background Art

[0002] Precast piles not only have the characteristics of high strength, small deformation, and stable quality, but also have many advantages such as simple preparation and low cost. Therefore, in the construction process of building foundations, constructors often use precast piles of various structures to reinforce the foundation. When using precast piles, it is necessary to first hoist the precast piles to the designated location and then hammer them into the soil. The precast piles need to be hoisted during the transfer process.

[0003] For example, a Chinese patent (publication number CN103015419B) is about a precast pile lifting device, including a gripper, which includes a first gripper and a second gripper, both of which are arc-shaped; the upper ends of the first gripper and the second gripper are hinged by a connecting shaft, the lower ends are separated from each other, and the arc-shaped openings are arranged relative to each other; a locking mechanism is arranged on the first gripper and the second gripper, and is used to lock and unlock the first gripper and the second gripper. The precast pile lifting device of the present invention adopts an outer tube wall lifting mode. During the lifting process, the gripper is clamped in the standard position for lifting the precast pile for lifting, which not only reduces the damage to the precast pile body during the lifting operation, but also is safer and more reliable.

[0004] During the hoisting process, multiple piles may be stacked, and it is difficult for the hoisting clamping equipment to clamp the piles accurately and smoothly. At the same time, after the piles are clamped and lifted, they may shake due to improper operation or wind speed, or even collide with other piles, causing the piles to be damaged by impact. The shapes of some piles may be irregular due to design requirements, resulting in different positions between the center and the center of gravity of the piles. After clamping, the piles may tilt, affecting the safety performance of the pile transfer process. Therefore, a construction pile fastening device with quick loading and unloading functions and a method of use are needed to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a construction pile foundation lifting device and method with quick loading and unloading functions, which can realize the precise lifting of multiple stacked pile foundations, and after lifting, it can reduce shaking and collision with other pile foundations, avoid damage to the pile foundation, and avoid tilting problems during the pile lifting process due to the pile foundation being the center or the different center of gravity positions.

[0006] To achieve the above-mentioned purpose, the present invention provides a construction pile lifting device with a quick loading and unloading function, the lifting device comprising a suspension assembly and two sets of positioning and clamping mechanisms symmetrically hung on the suspension assembly through a suspension rod or a suspension rope, the positioning and clamping mechanism comprising a positioning ring and a plurality of clamping support blocks distributed in an annular shape on the inner ring of the positioning ring, each clamping support block is mounted on the inner ring surface of the positioning ring through a fixing frame, the fixing frame is fixedly arranged on the inner ring surface of the positioning ring, and the clamping support block is connected to the fixing frame through a second elastic device; an extrusion-type pushing mechanism is arranged between each clamping support block and the inner ring surface of the positioning ring, the inner surface of the clamping support block is an arc-shaped surface, a first placement groove is provided on the inner arc surface of the clamping support block, and a telescopic support moving assembly is provided at the first placement groove;

[0007] The extrusion type pushing mechanism comprises an extrusion ball, a second piston mechanism, a first extrusion block and a second extrusion block, the second piston frame of the second piston mechanism is placed inside the ring body of the positioning ring, the second piston rod thereof extends from the inner ring surface of the positioning ring and is placed between the support block and the positioning ring, the first extrusion block is installed at the end of the second piston rod extending out of the positioning ring, the second extrusion block is arranged on the side of the clamping support block adjacent to the positioning ring, and the first extrusion block and the second extrusion block are in contact with each other, and an extrusion cavity is provided on one side of their contact surfaces, the extrusion ball is placed in the extrusion cavity, and is connected to the pushing mechanism installed on the fixed frame through a cross bar; under the action of the pushing mechanism, the extrusion ball is pressed toward the contact surface of the first extrusion block and the second extrusion block, and the first extrusion block is moved in a direction away from the center of the positioning ring, and the clamping support block is moved in a direction toward the center of the positioning ring;

[0008] The supporting moving assembly includes a first piston mechanism and a supporting wheel. The first piston frame of the first piston mechanism is located in a clamping supporting block above the top surface of the first placement groove, and its first piston rod extends into the first placement groove and is connected to the wheel frame of the supporting wheel; the rodless cavity of the second piston mechanism is connected to the rod cavity of the first piston mechanism, and when the squeezing ball pushes the first squeezing block to move in a direction away from the center of the positioning ring, the supporting wheel is driven by the first piston rod to shrink into the first placement groove.

[0009] Further technical solution of the present invention: the clamping support block is a strip block with an arc-shaped inner wall, and the inner arc surfaces of multiple clamping support blocks are spliced ​​into an annular clamping surface that matches the outer ring surface of the foundation pile to be lifted in the clamped state; one end of each clamping support block extends horizontally out of the positioning ring, and the inner arc surface of the extended part is inclined outward from the center of the positioning ring to form an inclined surface, the inclined surfaces of the multiple clamping support blocks have the same inclination angle, and in the clamped state of the multiple clamping support blocks, they form a trumpet mouth that is larger inside and smaller outside, and the large mouth ends of the trumpet mouths of the two sets of positioning clamping mechanisms are arranged opposite to each other.

[0010] A further technical solution of the present invention: the extrusion type pushing mechanism also includes an extrusion ball positioning and locking mechanism, the positioning and locking mechanism includes a piston positioning mechanism and a positioning groove on the back side of the cross bar, the piston positioning mechanism includes a third piston frame, a third piston plate and a third piston rod, the third piston frame is fixedly connected to the inner wall of the positioning ring through a fixing block, and one end of the third piston rod extends out of the third piston frame and contacts with the back side of the cross bar; the side of the third piston plate adjacent to the rodless cavity of the piston is connected to the inner wall of the third piston frame through a fifth elastic component, the rodless cavity of the third piston frame is connected to the rodless cavity of the second piston frame, and an air valve is provided on the outer surface of the rodless cavity of the third piston frame; when the extrusion ball pushes the first extrusion block to move in a direction away from the center of the positioning ring, the third piston rod is opposite to the positioning groove, and at the same time, pressurizes the rodless cavity of the third piston frame so that the third piston rod is inserted into the positioning groove, and the third piston rod is disengaged from the positioning groove when the air valve is open.

[0011] The better technical solution of the present invention is as follows: connecting frames are symmetrically provided on the upper parts of the two positioning rings, and extension blocks are respectively provided on the left and right sides of the upper part of each positioning ring, the connecting frames are U-shaped or arc-shaped structures, each connecting frame is inverted on the upper part of the positioning ring, and its two ends are respectively fixed on the two extension blocks, and a connecting ring is provided at the center position of each connecting frame, and the suspension assembly is fixedly connected to the connecting rings on the upper parts of the two positioning rings through two suspension rods or suspension ropes; a spirit level is provided on the front side of the connecting frame of each positioning ring.

[0012] The preferred technical solution of the present invention is as follows: the positioning and clamping mechanism also includes a plurality of buffer plates arranged on the outer ring surface of the positioning ring, a third placement groove is provided on the outer ring surface of the positioning ring at a position corresponding to each clamping support block, and each buffer plate is installed in the third placement groove through the buffer mechanism; a second placement groove is provided on the inner ring surface of the positioning ring at a position corresponding to each clamping support block, the buffer mechanism includes a cross plate and a plurality of groups of elastic buffer components, the cross plate is connected to the outer surface of the first extrusion block, each group of elastic buffer components includes a slide rod located in the second placement groove, an intermediate plate located in the third placement groove and a first elastic device, the slide rod is vertically provided on the outer surface of the cross plate, A sliding sleeve is slidably connected to the upper part of the sliding rod, and the sliding sleeve is fixedly installed on the inner wall of the second placement groove. A third elastic component is provided on the outer surface of the sliding rod, and the top end of the third elastic component is fixedly connected to the lower surface of the sliding sleeve, and the bottom end is connected to the fixed rod on the upper surface of the cross plate; an intermediate plate mounting groove is correspondingly provided on the bottom surface of the third placement groove, and the intermediate plate is movably placed in the intermediate plate mounting groove, and the top end of the sliding rod extends into the third placement groove and is fixedly connected to the intermediate plate, and the intermediate plate is connected to the buffer plate through the first elastic device; and when the extrusion ball pushes the first extrusion block to move in a direction away from the center of the positioning ring, the buffer plate is driven to move outward through the buffer mechanism to disengage from the third placement groove.

[0013] The preferred technical solution of the present invention is as follows: each clamping support block is installed on the inner ring surface of the positioning ring through two fixing frames, and the two fixing frames are symmetrically arranged on both sides of the extrusion type pushing mechanism; the first extrusion block and the second extrusion block are both square blocks with an inclined surface on one side, the inclined surfaces of the two extrusion blocks are located on the same side, and the inclined directions are opposite, and an extrusion cavity with an opening toward one of the fixed frames on one side is formed between the inclined surfaces of the two extrusion blocks, and the pushing mechanism is an electric hydraulic rod, which is fixedly installed on the fixing frame located on the opening side of the extrusion cavity.

[0014] A better technical solution of the present invention: two first placement grooves are provided on the inner arc surface of the support block, and a group of supporting movable components are correspondingly arranged in each first placement groove; the second elastic device includes a second telescopic rod, and the two ends of the second telescopic rod are respectively fixedly connected to the opposite surfaces of the fixed frame and the support block, and the outer surface of the second telescopic rod is provided with a fourth elastic component, and the two ends of the fourth elastic component are respectively fixedly connected to the opposite surfaces of the fixed frame and the support block.

[0015] A better technical solution of the present invention: the side of the first piston plate of the first piston mechanism adjacent to the rodless chamber is fixedly connected to the inner wall of the first piston frame through a first elastic component, and the rod chamber of the first piston frame is connected to the rodless chamber of the second piston frame through an air pipe; the rodless chamber of the third piston frame is connected to the rodless chamber of the second piston frame through an air pipe.

[0016] A better technical solution of the present invention: the first elastic device includes a first telescopic rod, one end of the first telescopic rod is fixedly connected to the outer surface of the buffer plate, the other end of the first telescopic rod is fixedly connected to the outer surface of the middle plate, the outer surface of the first telescopic rod is provided with a second elastic component, one end of the second elastic component is fixedly connected to the outer surface of the buffer plate, and the other end of the second elastic component is fixedly connected to the outer surface of the middle plate.

[0017] The present invention also provides a method for lifting a building pile foundation using the above-mentioned building pile lifting device with a quick loading and unloading function, which is characterized by comprising the following steps:

[0018] S1. Hang the construction pile foundation lifting device with quick loading and unloading function on the lifting hook of the lifting equipment through its hanging assembly, lift the construction pile foundation lifting device with quick loading and unloading function to the stacking place of the construction pile foundation through the lifting equipment, and use two sets of positioning and clamping mechanisms to be respectively located at the two ends of the construction pile foundation to be lifted, and then push the positioning ring to move toward the foundation pile. At this time, the inclined position of the clamping support block is inserted into the gap between the foundation pile and its placement position, and then the foundation pile moves to the inside of the positioning ring and contacts the support wheel; control the positioning ring to slide on the surface of the foundation pile, so that when the positioning and clamping mechanisms at both ends are in a horizontal state, the pushing mechanism pushes the extrusion ball to move toward the contact part of the first extrusion block and the second extrusion block, and at the same time drives the first extrusion block to move in the direction away from the center of the positioning ring, and the second extrusion block moves toward the center of the positioning ring;

[0019] S2, the first extrusion block moves in the direction away from the center of the positioning ring, and at the same time drives the second piston plate to move in the second piston frame. At this time, the gas inside the second piston frame is transferred to the first piston frame and the third piston frame. The air pressure inside the first piston frame increases and drives the first piston plate to move away from the foundation pile, so that the support wheel is separated from the foundation pile of the building to be lifted and stored in the first placement groove; the second extrusion block moves toward the center of the positioning ring, thereby pushing the clamping support block to move toward the foundation pile of the building to be lifted, and the inner arc surface of the clamping support block fully contacts with the foundation pile and clamps the foundation pile of the building to be lifted. At the same time, the air pressure inside the third piston frame increases and drives the third piston plate to move. The third piston plate controls the third piston rod to move into the corresponding positioning groove to complete the positioning of the cross bar and the extrusion ball;

[0020] S3. After the positioning of the cross bar and the squeezing ball is completed in step S2, the present invention is lifted by the lifting equipment and transferred to the specified position, and then the gas inside the third piston frame is discharged through the air valve on the third piston frame. At this time, the third elastic component drives the third piston plate and the third piston rod to move, so that the third piston rod is separated from the positioning groove, and then the pushing mechanism is controlled to drive the squeezing ball to move to the original position, and the clamping support block returns to its original position under the action of the second elastic device and is separated from the surface of the building foundation pile to be lifted. At the same time, the support wheel extends out of the first placement groove and contacts the surface of the building foundation pile to be lifted. Finally, the pushing mechanism is controlled to stop working, and then the positioning ring is pushed to separate from the building foundation pile to be lifted.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention directly places the corners of the support block into the placement gap of the foundation pile by setting a positioning ring, a first extrusion block, a second extrusion block, an extrusion ball, a support block, a buffer plate, a sliding rod, a sliding sleeve and a third elastic component. When the electric hydraulic rod drives the extrusion ball to squeeze the first extrusion block and the second extrusion block, the second extrusion block drives the support block to move close to the foundation pile, and at the same time, the first extrusion block controls the buffer plate to move away from the positioning ring through the sliding rod, and controls the support block to complete a tight and comprehensive contact clamping of the foundation pile surface. When the foundation pile is removed, the electric hydraulic rod is directly controlled to drive the extrusion ball to separate from the first extrusion block, and then the fifth elastic component drives the support block to separate from the foundation pile, and then the positioning ring can be removed from the foundation pile surface. The device is convenient and quick for clamping and removing the foundation pile. At the same time, the second elastic component and the buffer plate buffer the collision between the foundation pile and other foundation piles after it is hoisted, thereby reducing the degree of damage caused by the collision.

[0023] 2. The present invention is provided with a level meter, a first piston frame, a first piston plate, a second piston frame, a support wheel, a first piston rod and a second piston rod. When the first extrusion block moves upward, the first extrusion block squeezes and transfers the gas inside the second piston frame to the first piston frame through the second piston rod and the second piston plate, thereby increasing the gas pressure inside the first piston frame. At the same time, the first piston plate drives the first piston rod and the support wheel to move away from the foundation pile, thereby controlling the storage of the support wheel. The support wheel itself supports the foundation pile when the foundation pile is just placed between the support blocks, thereby facilitating the adjustment of the position of the positioning ring on the surface of the foundation pile. At the same time, the position of the device set on the surface of the foundation pile can be adjusted by the level meter, thereby ensuring that the foundation pile is in a horizontal state when hoisted and suspended in the air, thereby avoiding the safety hazard of the foundation pile tilting.

[0024] 3. The present invention sets a second piston frame, a second piston plate, a third piston frame, a third piston plate, a third piston rod and a positioning groove. When the electric hydraulic rod drives the squeezing ball to squeeze the first squeezing block and the second squeezing block, the gas in the second piston frame is squeezed and transferred to the third piston frame, thereby controlling the third piston plate inside the third piston frame, controlling the third piston rod to be inserted into the positioning groove, and positioning the cross bar, thereby avoiding the separation of the squeezing ball from the first squeezing block when the electric hydraulic rod fails, and ensuring that the support block clamps the pile more stably and safely.

[0025] The present invention can solve the problem that multiple piles are stacked during the lifting process, and the lifting clamping equipment is difficult to clamp the piles accurately and smoothly. It can also solve the problem that after the piles are clamped and lifted, they may shake due to improper operation or wind speed, or even collide with other piles, causing the piles to be damaged by impact. It can also solve the problem that due to the irregular shape of the piles, the center and center of gravity of the piles are at different positions, which may cause the piles to tilt after clamping, thereby affecting the safety performance of the pile transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the longitudinal cross-section structure of a single clamping support block in the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the three-dimensional positioning ring of the present invention;

[0029] Figure 4 for Figure 3 A magnified schematic diagram of the middle part;

[0030] Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of a supporting moving assembly of the present invention;

[0031] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of the second piston frame of the present invention;

[0032] Figure 7 This is a schematic diagram of the rear-view stereoscopic structure of the support block of the present invention;

[0033] Figure 8 for Figure 7 The enlarged schematic diagram of the middle B part;

[0034] Fig. 9 It is a schematic diagram of a three-dimensional cross-sectional structure of a support block of the present invention;

[0035] In the figure: 1-positioning ring; 2-extension block; 3-connecting frame; 4-connecting ring; 5-hanging rod or hanging rope; 6-suspension assembly; 7-level; 8-clamping support block; 9-first placement groove; 10-support moving assembly, 101-wheel frame, 102-support wheel, 103-first piston rod, 104-first piston plate, 105-first piston frame, 106-first elastic assembly; 11-second piston frame; 12-second placement groove; 13-second piston plate; 14-second piston rod; 15-first extrusion block; 16-cross plate; 17-sliding rod; 18—sleeve; 19—middle plate; 20—first elastic device, 201—first telescopic rod, 202—second elastic component; 21—buffer plate; 22—third elastic component; 23—third placement slot; 24—second elastic device, 241—second telescopic rod, 242—fourth elastic component; 25—fixed frame; 26—electric hydraulic rod; 27—cross bar; 28—squeezing ball; 29—second squeezing block; 30—third piston frame; 31—third piston plate; 32—third piston rod; 33—fifth elastic component; 34—fixed block; 35—positioning slot. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The embodiment provides a construction pile lifting device with a quick loading and unloading function, such as Figures 1 to 3As shown, the lifting device includes a suspension component 6 and two groups of positioning and clamping mechanisms symmetrically hung on the suspension component 6 through a suspension rod or a suspension rope 5, the positioning and clamping mechanism includes a positioning ring 1 and a plurality of clamping support blocks 8 distributed in a ring shape on the inner ring of the positioning ring 1, the clamping support block 8 is a strip block with an inner wall having an arc-shaped surface, and the inner arc surfaces of the plurality of clamping support blocks 8 are spliced ​​into an annular clamping surface that matches the outer ring surface of the foundation pile to be lifted in the clamped state; one end of each clamping support block 8 extends horizontally out of the positioning ring 1, and the inner arc surface of the extended part is inclined outward from the center of the positioning ring 1 to form an inclined surface, the inclined surfaces of the plurality of clamping support blocks 8 have the same inclination angle, and form a trumpet mouth with a larger inner side and a smaller outer side when the plurality of clamping support blocks 8 are clamped, and the large ends of the trumpet mouths of the two groups of positioning and clamping mechanisms are arranged relatively to facilitate the insertion of the clamping support blocks 8 into the gap at the position where the foundation pile is placed. A connecting frame 3 is symmetrically provided on the upper part of the two positioning rings 1, and an extension block 2 is respectively provided on the left and right sides of the upper part of each positioning ring 1. The connecting frame 3 is a U-shaped or arc-shaped structure. Each connecting frame 3 is inverted on the upper part of the positioning ring 1, and its two ends are respectively fixed on the two extension blocks 2. A connecting ring 4 is provided at the center position of each connecting frame 3, and the suspension assembly 6 is respectively fixedly connected to the connecting rings on the upper parts of the two positioning rings 1 through two suspension rods or suspension ropes 5; a spirit level 7 is provided on the front side of the connecting frame 3 of each positioning ring 1, and the spirit level 7 can be used to observe whether the two positioning rings are in a horizontal state.

[0040] The construction pile lifting device with quick loading and unloading function provided in the embodiment is as follows: Figure 2 and Figure 3 As shown, each clamping support block 8 is installed on the inner ring surface of the positioning ring 1 through two fixing frames 25, and the fixing frames 25 are fixedly arranged on the inner ring surface of the positioning ring 1. The clamping support block 8 is connected to the fixing frames 25 through the second elastic device 24; an extrusion type pushing mechanism is arranged between each clamping support block 8 and the inner ring surface of the positioning ring 1, and the two fixing frames 25 are symmetrically arranged on both sides of the extrusion type pushing mechanism. Figure 2 , Figure 6 , Figure 7 and Fig. 9As shown, the extrusion type pushing mechanism includes an extrusion ball 28, a second piston mechanism, a first extrusion block 15 and a second extrusion block 29. The second piston frame 11 of the second piston mechanism is placed inside the ring body of the positioning ring 1, and its second piston rod 14 extends from the inner ring surface of the positioning ring 1 and is placed between the support block 8 and the positioning ring 1; the first extrusion block 15 is installed at the end of the second piston rod 14 extending out of the positioning ring 1, and the second extrusion block 29 is arranged on the side of the clamping support block 8 adjacent to the positioning ring 1, and the first extrusion block 15 and the second extrusion block 29 are in contact with each other; the first extrusion block 15 and the second extrusion block 29 are both square blocks with an inclined surface on one side, the inclined surfaces of the two extrusion blocks are located on the same side, and the inclined directions are opposite, and an extrusion cavity with an opening facing the fixed frame 25 on one side is formed between the inclined surfaces of the two extrusion blocks, and the extrusion ball 28 It is placed in the extrusion cavity and connected to a pushing mechanism installed on a fixed frame 25 located at the opening side of the extrusion cavity through a cross bar 27. The pushing mechanism is an electric hydraulic rod 26. Under the action of the electric hydraulic rod 26, the extrusion ball 28 is squeezed toward the contact surface of the first extrusion block 15 and the second extrusion block 29, and the first extrusion block 15 is moved away from the center of the positioning ring 1, and the clamping support block 8 is moved toward the center of the positioning ring 1.

[0041] The construction pile lifting device with quick loading and unloading function provided in the embodiment is as follows: Figure 2 and Figure 3 As shown, two first placement grooves 9 are provided on the inner arc surface of the clamping support block 8 , and a telescopic support moving component 10 is provided at each first placement groove 9 . The supporting and moving component 10 includes a first piston mechanism and a supporting wheel 102. The first piston frame 105 of the first piston mechanism is located in the clamping support block 8 above the top surface of the first placement groove 9, and its first piston rod 103 extends into the first placement groove 9 and is connected to the wheel frame 101 of the supporting wheel 102; the first piston plate 104 of the first piston mechanism is fixedly connected to the inner wall of the first piston frame 105 on one side adjacent to the rodless cavity through the first elastic component 106, and the rod cavity of the first piston frame 105 is connected to the rodless cavity of the second piston frame 11 through an air pipe; when the squeezing ball 28 pushes the first squeezing block 15 to move in the direction away from the center of the positioning ring 1, the squeezing block 15 drives the second piston rod 14 to push the second piston plate 13 to move in the second piston frame 11, and during the movement, the air in the rodless cavity of the second piston frame 11 is squeezed to the rod cavity of the first piston frame 105 through the air pipe, thereby pushing the first piston plate 104 to move toward the rodless cavity, thereby using the supporting wheel 102 to shrink into the first placement groove 9. By providing the support wheel 102, when the foundation pile is located in the positioning ring 1, the friction between the foundation pile and the device can be reduced by the support wheel 102, so as to facilitate the control of the positioning ring 1 to move on the surface of the foundation pile.

[0042] The squeezing type pushing mechanism in the embodiment further comprises a squeezing ball positioning and locking mechanism, wherein the positioning and locking mechanism is as follows: Figure 7 and Figure 8 As shown, it includes a piston positioning mechanism and a back positioning groove 35 provided on the cross bar 27, the piston positioning mechanism includes a third piston frame 30, a third piston plate 31 and a third piston rod 32, the third piston frame 30 is fixedly connected to the inner wall of the positioning ring 1 through a fixing block 34, and one end of the third piston rod 32 extending from the third piston frame 30 contacts the back of the cross bar 27; the side of the third piston plate 31 adjacent to the piston rodless cavity is connected to the inner wall of the third piston frame 30 through a fifth elastic component 33, the rodless cavity of the third piston frame 30 is communicated with the rodless cavity of the second piston frame 11, and an air valve is provided on the outer surface of the rodless cavity of the third piston frame 30; when the squeezing ball 28 pushes the first squeezing block 15 to move in a direction away from the center of the positioning ring 1, the third piston rod 32 just moves to a position facing the positioning groove 35, and at the same time, the squeezing block 15 drives the second piston rod 14 to push the second piston plate 13 to move in the second piston frame 11, and during the movement, the air in the rodless cavity of the second piston frame 11 is squeezed to the third piston frame 30 through the air pipe. The rodless chamber of the third piston frame 30 is pushed toward the rod chamber, and during the movement, the third piston rod 32 is inserted into the positioning groove 35 for positioning and locking. When the locking mechanism needs to be released, it is only necessary to open the air valve to discharge the air in the rodless chamber of the third piston frame 30. Under the action of the fifth elastic component 33, the third piston rod 32 is driven to disengage from the positioning groove 35. The fifth elastic component 33 is provided to control the third piston rod 32 to automatically separate from the positioning groove 35 when the internal air pressure of the third piston frame 30 is reduced.

[0043] The construction pile lifting device with quick loading and unloading function provided in the embodiment is as follows: Figure 1As shown in FIG. 4 , the positioning and clamping mechanism further includes a plurality of buffer plates 21 arranged on the outer ring surface of the positioning ring, a third placement groove 23 is provided on the outer ring surface of the positioning ring 1 at a position corresponding to each clamping support block 8, and each buffer plate 21 is installed in the third placement groove 23 through the buffer mechanism; a second placement groove 12 is provided on the inner ring surface of the positioning ring 1 at a position corresponding to each clamping support block 8, the buffer mechanism includes a transverse plate 16 and a plurality of groups of elastic buffer components, the transverse plate 16 is connected to the outer surface of the first extrusion block 15, and each group of elastic buffer components includes a slide bar 17 located in the second placement groove 12, an intermediate plate 19 located in the third placement groove 23 and a first elastic device 20, the slide bar 17 is vertically arranged on the outer surface of the cross plate 16, a sleeve 18 is slidably connected to the upper part of the slide bar 17, the sleeve 18 is fixedly installed on the inner wall of the second placement groove 12, and a third elastic component 22 is arranged on the outer surface of the slide bar 17, the top end of the third elastic component 22 is fixedly connected to the lower surface of the sleeve 18, and the bottom end is connected to the fixed rod on the upper surface of the cross plate 16. By setting the third elastic component 22, after the squeezing ball 28 is separated from the first squeezing block 15, the third elastic component 22 controls the cross plate 16 and the first squeezing block 15 to move downward through the slide bar 17, so as to realize the control of the reset of the second piston plate 13; a corresponding third elastic component 22 is arranged on the bottom surface of the third placement groove 23 The middle plate installation groove, the middle plate 19 is movably placed in the middle plate installation groove, the top end of the slide rod 17 extends into the third placement groove 23 and is fixedly connected to the middle plate 19, and the middle plate 19 is connected to the buffer plate 21 through the first elastic device 20; when the squeezing ball 28 pushes the first squeezing block 15 to move in the direction away from the center of the positioning ring 1, a thrust is given to the cross plate 16, thereby pushing the slide rod 17 to move in the sliding sleeve 18, and pushing the middle plate 19 to move in the middle plate installation groove during the movement, and then the buffer plate 21 is pushed out of the third placement groove 23 through the first elastic device 20, and the collision between the pile and other piles after the pile is lifted is buffered by the buffer plate, thereby reducing the degree of damage caused by the collision.

[0044] like Figure 4 As shown, the first elastic device 20 in the embodiment includes a first telescopic rod 201, one end of the first telescopic rod 201 is fixedly connected to the outer surface of the buffer plate 21, the other end of the first telescopic rod 201 is fixedly connected to the outer surface of the middle plate 19, and the outer surface of the first telescopic rod 201 is provided with a second elastic component 202, one end of the second elastic component 202 is fixedly connected to the outer surface of the buffer plate 21, and the other end of the second elastic component 202 is fixedly connected to the outer surface of the middle plate 19. By providing the first telescopic rod 201 and the second elastic component 202, the first telescopic rod 201 connects and limits the buffer plate 21 and the middle plate 19, so that the buffer plate 21 can move stably relative to the positioning ring 1, and the second elastic component 202 buffers and protects the buffer plate 21 from impact. Fig. 9As shown, the second elastic device 24 includes a second telescopic rod 241, the two ends of which are respectively fixedly connected to the opposite surfaces of the fixing frame 25 and the support block 8, and a fourth elastic component 242 is provided on the outer surface of the second telescopic rod 241, and the two ends of the fourth elastic component 242 are respectively fixedly connected to the opposite surfaces of the fixing frame 25 and the support block 8. The second telescopic rod 241 connects and limits the fixing frame 25 and the support block 8 to ensure that the support block 8 moves stably when under pressure, and after the second extrusion block 29 is separated from the extrusion ball 28, the fourth elastic component 242 can drive the support block 8 to reset.

[0045] Embodiment 2 provides a method for lifting a building pile foundation using the above-mentioned building pile lifting device with a quick loading and unloading function, characterized in that it includes the following steps:

[0046] S1. When it is necessary to position and transfer the prefabricated foundation piles, the construction pile lifting device with the function of quick loading and unloading is hung on the lifting hook of the lifting equipment through its hanging assembly, and the construction pile lifting device with the function of quick loading and unloading is lifted to the stacking place of the construction pile foundation by the lifting equipment, and two sets of positioning and clamping mechanisms are respectively located at the two ends of the building pile foundation to be lifted, firstly, the left and right support blocks 8 are controlled to be placed corresponding to the two ends of the foundation pile, and then the positioning ring 1 is pushed to move toward the foundation pile. At this time, the inclined position of the support block 8 is inserted into the gap between the foundation pile and its placement position, and then the foundation pile moves smoothly into the positioning ring 1 and contacts the support wheel 102, and then the positioning ring 1 is controlled to slide on the surface of the foundation pile. When the level 7 is in a horizontal state, the electric hydraulic rod 26 is controlled to work and drive the squeezing ball 28 to move, and at this time, the squeezing ball 28 drives the squeezing first squeezing block 15 and the second squeezing block 29 to move;

[0047] S2, the first extrusion block 15 moves in the direction away from the center of the positioning ring, and at the same time drives the second piston plate 13 to move in the second piston frame 11. At this time, the internal gas of the second piston frame 11 is transferred to the first piston frame 105 and the third piston frame 30. The internal air pressure of the first piston frame 105 increases and drives the first piston plate 104 to move away from the foundation pile, so that the support wheel is separated from the foundation pile of the building to be hoisted and is received in the first placement groove 9; the second extrusion block 29 moves toward the center of the positioning ring, thereby pushing the clamping support block to move toward the foundation pile of the building to be hoisted, and the inner arc surface of the clamping support block 8 is in full contact with the foundation pile and clamps the foundation pile of the building to be hoisted. At the same time, the internal air pressure of the third piston frame 30 increases and drives the third piston plate 31 to move. The third piston plate 31 controls the third piston rod 32 to move into the corresponding positioning groove 35, completing the positioning of the cross bar 27 and the extrusion ball 28;

[0048] When the squeezing ball 28 is separated from the first squeezing block 15 , the electric hydraulic rod 26 is controlled to stop working, and then the positioning ring 1 is pushed to separate from the pile.

[0049] S3. After the positioning of the cross bar 27 and the squeezing ball 28 is completed in step S2, the present invention is lifted by the lifting equipment and transferred to the specified position, and then the gas inside the third piston frame 30 is discharged through the air valve on the third piston frame 30. At this time, the third elastic component 22 drives the third piston plate 31 and the third piston rod 32 to move, so that the third piston rod 32 is separated from the positioning groove 35. After that, the electric hydraulic rod 26 can be controlled to drive the squeezing ball 28 to move to the original position, and the clamping support block 8 returns to its original position under the action of the second elastic device 24 and is separated from the surface of the building foundation pile to be lifted. At the same time, the support wheel 102 extends out of the first placement groove 9 and contacts the surface of the building foundation pile to be lifted. Finally, the electric hydraulic rod 26 is controlled to stop working, and then the positioning ring is pushed to separate from the building foundation pile to be lifted.

[0050] In summary, the present invention directly places the corner position of the support block 8 into the placement gap of the foundation pile by setting the positioning ring 1, the first extrusion block 15, the second extrusion block 29, the extrusion ball 28, the support block 8, the buffer plate 21, the slide rod 17, the sliding sleeve 18 and the third elastic component 22. When the electric hydraulic rod 26 drives the extrusion ball 28 to squeeze the first extrusion block 15 and the second extrusion block 29, the second extrusion block 29 drives the support block 8 to move close to the foundation pile, and at the same time, the first extrusion block 15 controls the buffer plate 21 to move away from the foundation pile through the slide rod 17. The device moves away from the positioning ring 1, controls the support block 8 to complete a tight and comprehensive contact clamping on the surface of the pile. When the pile is removed, the electric hydraulic rod 26 is directly controlled to drive the squeezing ball 28 to separate from the first squeezing block 15, and then the fifth elastic component 33 drives the support block 8 to separate from the pile. Then the positioning ring 1 can be removed from the surface of the pile. The device is convenient and quick for clamping and removing the pile. At the same time, the second elastic component 202 and the buffer plate 21 buffer the collision between the pile and other piles after the pile is lifted, thereby reducing the degree of damage caused by the collision.

[0051] The present invention is provided with a level meter 7, a first piston frame 105, a first piston plate 104, a second piston frame 11, a support wheel 102, a first piston rod 103 and a second piston rod 14. When the first extrusion block 15 moves upward, the first extrusion block 15 squeezes and transfers the internal gas of the second piston frame 11 to the first piston frame 105 through the second piston rod 14 and the second piston plate 13, thereby increasing the internal air pressure of the first piston frame 105. At the same time, the first piston plate 104 drives the first piston rod 103 and the support wheel 102 to move away from the pile foundation, thereby controlling the storage of the support wheel 102. The support wheel 102 itself supports the pile foundation when the pile foundation is just placed between the support blocks 8, so as to facilitate the adjustment of the position of the positioning ring 1 on the surface of the pile foundation. At the same time, the position of the device set on the surface of the pile foundation can be adjusted by the level meter 7, so as to ensure that the pile foundation is in a horizontal state when it is hoisted and suspended in the air, thereby avoiding the safety hazard of the pile foundation tilting.

[0052] The present invention provides a second piston frame 11, a second piston plate 13, a third piston frame 30, a third piston plate 31, a third piston rod 32 and a positioning groove 35. When the electric hydraulic rod 26 drives the squeezing ball 28 to squeeze the first squeezing block 15 and the second squeezing block 29, the gas in the second piston frame 11 is squeezed and transferred to the third piston frame 30, so as to control the third piston plate 31 inside the third piston frame 30, control the third piston rod 32 to be inserted into the positioning groove 35, and realize the positioning of the cross bar 27, so as to avoid the squeezing ball 28 and the first squeezing block 15 being separated when the electric hydraulic rod 26 fails, and ensure that the clamping process of the support block 8 on the pile is more stable and safe.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction pile lifting device with quick loading and unloading function, characterized in that: The lifting device comprises a suspension component (6) and two groups of positioning and clamping mechanisms symmetrically hung on the suspension component (6) through a suspension rod or a suspension rope (5), the positioning and clamping mechanism comprising a positioning ring (1) and a plurality of clamping support blocks (8) distributed in an annular shape on the inner ring of the positioning ring (1), each clamping support block (8) being mounted on the inner ring surface of the positioning ring (1) through a fixing frame (25), the fixing frame (25) being fixedly arranged on the inner ring surface of the positioning ring (1), the clamping support block (8) being connected to the fixing frame (25) through a second elastic device (24); an extrusion type pushing mechanism is arranged between each clamping support block (8) and the inner ring surface of the positioning ring (1), the inner surface of the clamping support block (8) being an arc surface, a first placement groove (9) being provided on the inner arc surface of the clamping support block (8), and a telescopic support moving component (10) being provided at the first placement groove (9); The squeezing type pushing mechanism comprises a squeezing ball (28), a second piston mechanism, a first squeezing block (15) and a second squeezing block (29); the second piston frame (11) of the second piston mechanism is placed inside the ring body of the positioning ring (1); the second piston rod (14) thereof extends from the inner ring surface of the positioning ring (1) and is placed between the support block (8) and the positioning ring (1); the first squeezing block (15) is installed at the end of the second piston rod (14) extending out of the positioning ring (1); the second squeezing block (29) is arranged at the clamping support block (8) adjacent to the positioning ring (1). On one side, the first extrusion block (15) and the second extrusion block (29) are in contact with each other, and an extrusion cavity is provided on one side of the contact surface thereof, the extrusion ball (28) is placed in the extrusion cavity, and is connected to a pushing mechanism installed on the fixing frame (25) through a cross bar (27); under the action of the pushing mechanism, the extrusion ball (28) is pressed toward the contact surface of the first extrusion block (15) and the second extrusion block (29), and the first extrusion block (15) is moved in a direction away from the center of the positioning ring (1), and the clamping support block (8) is moved in a direction toward the center of the positioning ring (1); The support moving assembly (10) comprises a first piston mechanism and a support wheel (102); the first piston frame (105) of the first piston mechanism is located in a clamping support block (8) above the top surface of the first placement groove (9); its first piston rod (103) extends into the first placement groove (9) and is connected to the wheel frame (101) of the support wheel (102); the rodless cavity of the second piston mechanism is connected to the rod cavity of the first piston mechanism, and when the squeezing ball (28) pushes the first squeezing block (15) to move in a direction away from the center of the positioning ring (1), the support wheel (102) shrinks into the first placement groove (9) driven by the first piston rod (103).

2. A construction pile lifting device with quick loading and unloading function according to claim 1, characterized in that: The clamping support block (8) is a strip block with an arc-shaped inner wall. In the clamped state, the inner arc surfaces of the multiple clamping support blocks (8) are spliced ​​into an annular clamping surface that matches the outer ring surface of the pile to be hoisted; one end of each clamping support block (8) extends horizontally out of the positioning ring (1), and the inner arc surface of the extended portion is inclined outward from the center of the positioning ring (1) to form an inclined surface. The inclined surfaces of the multiple clamping support blocks (8) have the same inclination angle, and in the clamped state, the multiple clamping support blocks (8) form a trumpet mouth that is larger inside and smaller outside, and the large ends of the trumpet mouths of the two sets of positioning clamping mechanisms are arranged opposite to each other.

3. A construction pile lifting device with quick loading and unloading function according to claim 1 or 2, characterized in that: The squeezing type pushing mechanism also includes a squeezing ball positioning and locking mechanism, the positioning and locking mechanism includes a piston positioning mechanism and a back positioning groove (35) provided on the cross bar (27), the piston positioning mechanism includes a third piston frame (30), a third piston plate (31) and a third piston rod (32), the third piston frame (30) is fixedly connected to the inner wall of the positioning ring (1) through a fixing block (34), and one end of the third piston rod (32) extending out of the third piston frame (30) contacts the back side of the cross bar (27); the side of the third piston plate (31) adjacent to the piston rodless cavity is fixedly connected to the third piston frame (30) through a fifth elastic group The component (33) is connected to the inner wall of the third piston frame (30), the rodless chamber of the third piston frame (30) is connected to the rodless chamber of the second piston frame (11), and an air valve is provided on the outer surface of the rodless chamber of the third piston frame (30); when the squeezing ball (28) pushes the first squeezing block (15) to move in a direction away from the center of the positioning ring (1), the third piston rod (32) faces the positioning groove (35), and at the same time, pressurizes the rodless chamber of the third piston frame (30) so that the third piston rod (32) is inserted into the positioning groove (35), and the third piston rod (32) is separated from the positioning groove (35) when the air valve is opened.

4. A construction pile lifting device with quick loading and unloading function according to claim 1 or 2, characterized in that: A connecting frame (3) is symmetrically arranged on the upper part of the two positioning rings (1), and an extension block (2) is respectively arranged on the left and right sides of the upper part of each positioning ring (1); the connecting frame (3) is a U-shaped or arc-shaped structure; each connecting frame (3) is inverted on the upper part of the positioning ring (1), and its two ends are respectively fixed on the two extension blocks (2); a connecting ring (4) is arranged at the center position of each connecting frame (3); the suspension assembly (6) is respectively fixedly connected to the connecting rings on the upper part of the two positioning rings (1) through two suspension rods or suspension ropes (5); and a level (7) is arranged on the front of the connecting frame (3) of each positioning ring (1).

5. A construction pile lifting device with quick loading and unloading function according to claim 1 or 2, characterized in that: The positioning clamping mechanism also includes a plurality of buffer plates (21) arranged on the outer ring surface of the positioning ring, a third placement groove (23) is opened on the outer ring surface of the positioning ring (1) at a position corresponding to each clamping support block (8), and each buffer plate (21) is installed in the third placement groove (23) through the buffer mechanism; a second placement groove (12) is opened on the inner ring surface of the positioning ring (1) at a position corresponding to each clamping support block (8), and the buffer mechanism includes a transverse plate (16) and a plurality of groups of elastic buffer components, the transverse plate (16) is connected to the outer surface of the first extrusion block (15), each group of elastic buffer components includes a slide bar (17) located in the second placement groove (12), an intermediate plate (19) located in the third placement groove (23) and a first elastic device (20), the slide bar (17) is vertically arranged on the outer surface of the transverse plate (16), and is slidably connected to the upper part of the slide bar (17). A sliding sleeve (18) is connected, and the sliding sleeve (18) is fixedly installed on the inner wall of the second placement groove (12). The outer surface of the sliding rod (17) is provided with a third elastic component (22). The top end of the third elastic component (22) is fixedly connected to the lower surface of the sliding sleeve (18), and the bottom end is connected to the fixed rod on the upper surface of the cross plate (16); an intermediate plate installation groove is correspondingly provided on the bottom surface of the third placement groove (23), and the intermediate plate (19) is movably placed in the intermediate plate installation groove. The top end of the sliding rod (17) extends into the third placement groove (23) and is fixedly connected to the intermediate plate (19). The intermediate plate (19) is connected to the buffer plate (21) through the first elastic device (20); and when the squeezing ball (28) pushes the first squeezing block (15) to move in a direction away from the center of the positioning ring (1), the buffer plate (21) is driven to move outward and disengage from the third placement groove (23) through the buffer mechanism.

6. A construction pile lifting device with quick loading and unloading function according to claim 1 or 2, characterized in that: Each clamping support block (8) is mounted on the inner ring surface of the positioning ring (1) via two fixing frames (25), and the two fixing frames (25) are symmetrically arranged on both sides of the extrusion type pushing mechanism; the first extrusion block (15) and the second extrusion block (29) are both square blocks with an inclined surface on one side, the inclined surfaces of the two extrusion blocks are located on the same side and have opposite inclined directions, and an extrusion cavity with an opening toward one of the fixing frames (25) is formed between the inclined surfaces of the two extrusion blocks, and the pushing mechanism is an electric hydraulic rod (26) fixedly mounted on the fixing frame (25) located on the opening side of the extrusion cavity.

7. A construction pile lifting device with quick loading and unloading function according to claim 1 or 2, characterized in that: The inner arc surface of the support block (8) is provided with two first placement grooves (9), and a group of supporting movable components (10) is correspondingly arranged in each first placement groove (9); the second elastic device (24) comprises a second telescopic rod (241), and the two ends of the second telescopic rod (241) are respectively fixedly connected to the opposite surfaces of the fixed frame (25) and the support block (8); the outer surface of the second telescopic rod (241) is provided with a fourth elastic component (242), and the two ends of the fourth elastic component (242) are respectively fixedly connected to the opposite surfaces of the fixed frame (25) and the support block (8).

8. The construction pile lifting device with quick loading and unloading function according to claim 3, characterized in that: The first piston plate (104) of the first piston mechanism is fixedly connected to the inner wall of the first piston frame (105) via a first elastic component (106), and the rod chamber of the first piston frame (105) is connected to the rodless chamber of the second piston frame (11) via an air pipe; the rodless chamber of the third piston frame (30) is connected to the rodless chamber of the second piston frame (11) via an air pipe.

9. The construction pile lifting device with quick loading and unloading function according to claim 5, characterized in that: The first elastic device (20) comprises a first telescopic rod (201), one end of the first telescopic rod (201) is fixedly connected to the outer surface of the buffer plate (21), the other end of the first telescopic rod (201) is fixedly connected to the outer surface of the middle plate (19), and a second elastic component (202) is provided on the outer surface of the first telescopic rod (201), one end of the second elastic component (202) is fixedly connected to the outer surface of the buffer plate (21), and the other end of the second elastic component (202) is fixedly connected to the outer surface of the middle plate (19).

10. A method for lifting a building pile foundation using the building pile lifting device with a quick loading and unloading function according to any one of claims 3 to 9, characterized in that: The following steps are involved: S1. Hang the construction pile foundation lifting device with quick loading and unloading function on the lifting hook of the lifting equipment through its hanging assembly, lift the construction pile foundation lifting device with quick loading and unloading function to the stacking place of the construction pile foundation through the lifting equipment, and use two sets of positioning and clamping mechanisms to be respectively located at the two ends of the construction pile foundation to be lifted, and then push the positioning ring to move toward the foundation pile. At this time, the inclined position of the clamping support block is inserted into the gap between the foundation pile and its placement position, and then the foundation pile moves to the inside of the positioning ring and contacts the support wheel; control the positioning ring to slide on the surface of the foundation pile, so that when the positioning and clamping mechanisms at both ends are in a horizontal state, the pushing mechanism pushes the extrusion ball to move toward the contact part of the first extrusion block and the second extrusion block, and at the same time drives the first extrusion block to move in the direction away from the center of the positioning ring, and the second extrusion block moves toward the center of the positioning ring; S2, the first extrusion block moves in the direction away from the center of the positioning ring, and at the same time drives the second piston plate to move in the second piston frame. At this time, the gas inside the second piston frame is transferred to the first piston frame and the third piston frame. The air pressure inside the first piston frame increases and drives the first piston plate to move away from the foundation pile, so that the support wheel is separated from the foundation pile of the building to be lifted and stored in the first placement groove; the second extrusion block moves toward the center of the positioning ring, thereby pushing the clamping support block to move toward the foundation pile of the building to be lifted, and the inner arc surface of the clamping support block fully contacts with the foundation pile and clamps the foundation pile of the building to be lifted. At the same time, the air pressure inside the third piston frame increases and drives the third piston plate to move. The third piston plate controls the third piston rod to move into the corresponding positioning groove to complete the positioning of the cross bar and the extrusion ball; S3. After the positioning of the cross bar and the squeezing ball is completed in step S2, the present invention is lifted by the lifting equipment and transferred to the specified position, and then the gas inside the third piston frame is discharged through the air valve on the third piston frame. At this time, the third elastic component drives the third piston plate and the third piston rod to move, so that the third piston rod is separated from the positioning groove, and then the pushing mechanism is controlled to drive the squeezing ball to move to the original position, and the clamping support block returns to its original position under the action of the second elastic device and is separated from the surface of the building foundation pile to be lifted. At the same time, the support wheel extends out of the first placement groove and contacts the surface of the building foundation pile to be lifted. Finally, the pushing mechanism is controlled to stop working, and then the positioning ring is pushed to separate from the building foundation pile to be lifted.

Images