Pile pulling device with components convenient to replace

Abstract

The pile pulling device solves the problems that an existing pile pulling device is complex in structure, assemblies are inconvenient to replace, and the pile pulling device is difficult to adapt to ground piles of different thicknesses. According to the pile pulling device with the assembly convenient to replace, by arranging the first connecting part, the second connecting part and the third connecting part which are convenient to disassemble, connection among the power piece, the connecting rod, the clamping block and the connecting block is achieved, and the connecting rod, the clamping block and the connecting block are convenient to replace so as to adapt to ground piles of different sizes.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering equipment, in particular to a pile pulling device which is convenient for replacing components. Background Art

[0002] A pile is primarily a rod-shaped structure that is inserted into an object to achieve fixation and is widely used in the civil engineering industry. Some piles do not need to be removed after being driven into an object and primarily serve as connecting structures to secure the object they are connected to. Other piles, however, need to be removed directly after being driven into an object, with the portion of the pile that is driven into the object forming a hole for other operations. Pile removal is primarily achieved through the use of a locking sleeve in conjunction with a power source. For example, patent publication number CN216108495U discloses a top-supporting device and pile puller for pile extraction. This patent utilizes a cylinder as the power source, coupled with a tightening table to achieve the pile extraction process. However, the thickness of the piles extracted in this patent is largely determined by the size of the tightening unit, which is closely linked to the size of the tightening table. Furthermore, the tight connection between the two makes replacement difficult, resulting in a narrow range of applicable pile thicknesses. Consequently, a single device is difficult to adapt to piles of varying sizes. Therefore, a pile extraction device with easily replaceable components is needed. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a ground pile and a pile pulling device.

[0004] In order to solve the above problems, the present invention adopts the following solutions:

[0005] The lifting mechanism is a kind of lifting mechanism that is easy to replace components, including a power piece for lifting and lowering, and a clamping piece; wherein the clamping piece is arranged at the lifting end of the power piece; the clamping piece comprises two symmetrically arranged clamping blocks, a connecting rod and a connecting block; there are two power pieces in total, and the two power pieces are respectively connected to the two clamping blocks through a connecting rod, one end of the connecting rod is rotatably connected to the first connecting part on the power piece, and the other end of the connecting rod is rotatably connected to the second connecting part on the clamping block; the clamping block is located obliquely above the lifting end of the power piece; a connecting block is also provided between the two clamping blocks, a sliding hole is provided on the connecting block, and a third connecting part that slides with the sliding hole is respectively provided on the two clamping blocks, and the two blocks are slidably engaged with the connecting block through the third connecting part; the structures of the first connecting part, the second connecting part and the third connecting part are consistent, and they all include a connecting column and a connecting head for limiting the connecting rod, and the connecting head is detachably connected to the connecting column.

[0006] Furthermore, the sliding hole provided on the connecting block is a waist-shaped hole or a strip-shaped hole.

[0007] Furthermore, the connecting block is arranged below the clamping block, or above the clamping block.

[0008] Furthermore, two connecting rods are respectively provided on both sides of the clamping block, and the other ends of the two connecting rods are respectively connected to the two sides of the lifting end of the power component.

[0009] Furthermore, both ends of the connecting rod are respectively provided with connection holes for connecting the power member and the clamping block, and the connection holes are round holes, waist-shaped holes or strip-shaped holes.

[0010] Furthermore, it also includes a base plate; the base plate is located at the bottom of the power member, and the power member is fixedly connected to the base plate; a through hole for passing the ground pile is provided on the base plate.

[0011] Furthermore, an arc-shaped notch is provided on one side of the clamping blocks where they are close to each other, for clamping the ground piles.

[0012] Furthermore, anti-slip grooves are provided in the recess of the clamping block for increasing the clamping friction force.

[0013] Furthermore, the anti-slip pattern is a grid pattern, a wave pattern or an array of arc-shaped protrusions.

[0014] Furthermore, the power part is a pneumatic cylinder or an oil cylinder or a combination of a motor and a lead screw.

[0015] The beneficial effects of the utility model are:

[0016] The power member, connecting rod, clamping block and connecting block are connected by providing a first connecting portion, a second connecting portion and a third connecting portion that are easy to disassemble, so that the connecting rod, clamping block and connecting block can be easily replaced to adapt to piles of different sizes.

[0017] By providing a notch on the clamping block, it can better fit the outer side of the cylindrical pile, making it easier to clamp and pull out the pile;

[0018] Anti-slip grooves are provided on the notch of the clamping block to increase the clamping friction of the clamping block on the ground pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the pile pulling device of Example 1;

[0020] Figure 2 This is an exploded view of the overall structure of the pile pulling device of Example 1;

[0021] Figure 3 The overall structure of the pile pulling device of Example 1 is shown in FIG. Figure 2 ;

[0022] Figure 4 Schematic diagram of the relationship between the clamping block and the connecting block in Example 1;

[0023] Description of the accompanying drawings: power part 1, first connecting part 11, clamping part 2, clamping block 21, notch 211, anti-slip groove 212, connecting rod 22, connecting hole 221, connecting block 23, sliding hole 231, inclined surface 232, second connecting part 24, connecting head 241, connecting column 242, third connecting part 25, bottom plate 3. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the figures only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0026] Example 1:

[0027] like Figures 1 to 4As shown, a pile pulling device that is easy to replace components includes a power member 1 for lifting and lowering, and also includes a clamping member 2; wherein the clamping member 2 is arranged at the lifting end of the power member 1; the clamping member 2 includes two symmetrically arranged clamping blocks 21, a connecting rod 22 and a connecting block 23; there are two power members 1, and the two power members 1 are connected to the two clamping blocks 21 through the connecting rod 22 respectively, one end of the connecting rod 22 is rotatably connected to the first connecting part 11 on the power member 1, and the other end of the connecting rod 22 is rotatably connected to the second connecting part 24 on the clamping block 21; the clamping block 21 is located obliquely above the lifting end of the power member 1; between the two blocks A connecting block 23 is also provided between the clamping blocks 21, and a sliding hole 231 is provided on the connecting block 23. The two clamping blocks 21 are respectively provided with a third connecting part 25 that slides with the sliding hole 231, and the two blocks slide with the connecting block 23 through the third connecting part 25; the first connecting part 11, the second connecting part 24 and the third connecting part 25 have the same structure, all of which include a connecting column 242 and a connecting head 241 for limiting the connecting rod 22. The connecting head 241 and the connecting column 242 are detachably connected. In this case, a threaded connection is adopted between the connecting column 242 and the connecting head 241. The clamping block 21 in the clamping member 2 is subjected to the effect of gravity and is subjected to a vertical downward force. Due to the restriction of the connecting rod 22, the clamping block 21 will move closer to the ground pile when it moves downward to achieve clamping. When the lifting end of the power member 1 rises, since the clamping block 21 is located obliquely above the power member 1, the force transmitted to the clamping block 21 by the power member 1 through the connecting rod 22 can be decomposed into a transverse clamping force and a longitudinal pile-pulling force, so that the clamping block 21 further clamps the ground pile, thereby clamping the pile body and lifting the pile body upward at the same time. In addition, the pile pulling device of this embodiment has a simple structure, and the connecting heads 241 of the first connecting part 11, the second connecting part 24 and the third connecting part 25 are all detachable, which makes it easy to replace the connecting rod 22, the connecting block 23 and the clamping block 21 to adapt to ground piles of different sizes.

[0028] The sliding hole 231 provided on the connecting block 23 is a waist-shaped hole or a strip-shaped hole; the connecting block 23 is provided below the clamping block 21, or above the clamping block 21; in this example, the connecting block 23 is provided below the clamping block 21, and inclined surfaces 232 are provided on both sides of the connecting block 23, respectively. The inclined surfaces 232 are inclined downward toward the edge of the connecting block 23, and sliding holes 231 are provided on the inclined surfaces 232 on both sides, so that when the clamping block 21 slides on the connecting block 23, it can slide along the inclined surfaces 232, making the movement of the clamping block 21 on the connecting block 23 smoother and reducing the occurrence of the clamping block 21 getting stuck.

[0029] Two connecting rods 22 are provided on both sides of the clamping block 21, and the other ends of the two connecting rods 22 are connected to the two sides of the lifting end of the power member 1. The two ends of the connecting rod 22 are respectively provided with connecting holes 221 for connecting the power member 1 and the clamping block 21. The connecting holes 221 are round holes, waist-shaped holes, or bar-shaped holes. In this example, the two ends of the connecting rod 22 are respectively provided with waist-shaped holes as the connecting holes 221, wherein the waist-shaped holes can ensure that the connecting rod 22 rotates smoothly around the connecting column 242, and when the power member 1 rises, it can also better adjust the angle between the connecting rod 22 and the clamping block 21, so that the upward lifting force is better transmitted to the clamping block 21.

[0030] The clamping blocks 21 are provided with arcuate notches 211 on the adjacent sides, designed to better fit the outer surface of the cylindrical pile, facilitating gripping and lifting. Anti-slip grooves 212 are provided within these notches 211 to increase gripping friction. These grooves 212 may take the form of a grid, wavy pattern, or an array of arc-shaped protrusions. The specific shape of these grooves is not shown in the accompanying drawings.

[0031] It also includes a base plate 3; the base plate 3 is located at the bottom of the power member 1, and the power member 1 is fixedly connected to the base plate 3; a through hole for passing the ground pile is provided on the base plate 3; the base plate 3 can better support the pile pulling device to prevent it from tilting, causing the pile pulling direction to be skewed, and increasing the difficulty of pile pulling.

[0032] The power part 1 is a combination of an air cylinder or an oil cylinder or a motor and a lead screw. In this example, an oil cylinder is used, which can move upward more stably and with greater force.

[0033] In order to prevent the connection between the connecting column and the connecting head from loosening, the connecting head can be provided with two nuts, which are clamped together by the two nuts to prevent the nuts from falling out of the connecting column due to shaking during the pile pulling process. It should be noted that in some other embodiments, other detachable connection methods can be adopted between the connecting column and the connecting head, such as pin connection, that is, a pin connection hole is provided at the end of the connecting column, and the connecting head adopts a pin connection column, which is inserted into the pin connection hole to achieve pin connection, and at the same time forms a limit for the connecting rod to prevent the connecting rod from falling out of the connecting column.

[0034] During implementation, the connection between the power part 1, the connecting rod 22, the clamping block 21 and the connecting block 23 is realized by providing a first connecting part 11, a second connecting part 24 and a third connecting part 25 that are easy to disassemble, so as to facilitate the replacement of the connecting rod 22, the clamping block 21 and the connecting block 23 to adapt to ground piles of different sizes; by providing a notch 211 on the clamping block 21, it better fits the outer side of the cylindrical ground pile, making it convenient to clamp and pull up the ground pile; by providing an anti-slip groove 212 at the notch 211 of the clamping block 21, the clamping friction of the clamping block 21 on the ground pile is increased.

[0035] The above description is merely a specific example of the present invention and does not constitute any limitation thereto. It is obvious that those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and details without departing from the principles and structure of the present invention. However, such modifications and changes based on the concept of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A pile pulling device that is easy to replace components, comprising a power member (1) for lifting and lowering, characterized in that: The invention also includes a clamping member (2); wherein the clamping member (2) is arranged at the lifting end of the power member (1); the clamping member (2) includes two symmetrically arranged clamping blocks (21), a connecting rod (22) and a connecting block (23); there are two power members (1), and the two power members (1) are respectively connected to the two clamping blocks (21) through the connecting rod (22); one end of the connecting rod (22) is rotatably connected to the first connecting portion (11) on the power member (1), and the other end of the connecting rod (22) is rotatably connected to the second connecting portion (24) on the clamping block (21); the clamping block (21) is located obliquely above the lifting end of the power member (1); between the two A connecting block (23) is further provided between the block clamps (21), a sliding hole (231) is provided on the connecting block (23), and a third connecting portion (25) that is slidably engaged with the sliding hole (231) is provided on each of the two clamps (21), and the two blocks are slidably engaged with the connecting block (23) via the third connecting portion (25). The first connecting portion (11), the second connecting portion (24) and the third connecting portion (25) have the same structure, and all include a connecting column (242) and a connecting head (241) for limiting the connecting rod (22), and the connecting head (241) is detachably connected to the connecting column (242).

2. A pile pulling device that is easy to replace components according to claim 1, characterized in that: The sliding hole (231) provided on the connecting block (23) is a waist-shaped hole or a strip-shaped hole.

3. A pile pulling device that is easy to replace components according to claim 2, characterized in that: The connecting block (23) is arranged below the clamping block (21), or above the clamping block (21).

4. The pile pulling device for facilitating component replacement according to claim 1, characterized in that: Two connecting rods (22) are respectively provided on both sides of the clamping block (21), and the other ends of the two connecting rods (22) are respectively connected to the two sides of the lifting end of the power member (1).

5. A pile pulling device that is easy to replace components according to claim 4, characterized in that: Both ends of the connecting rod (22) are respectively provided with connection holes (221) for connecting the power member (1) and the clamping block (21); the connection holes (221) are circular holes, waist-shaped holes or strip-shaped holes.

6. The pile pulling device for facilitating component replacement according to claim 1, characterized in that: It also includes a bottom plate (5); the bottom plate (5) is located at the bottom of the power member (1), and the power member (1) is fixedly connected to the bottom plate (5); and a through hole for passing a ground pile is provided on the bottom plate (5).

7. The pile pulling device for facilitating component replacement according to claim 1, characterized in that: An arc-shaped notch (211) is provided on one side of the clamping blocks (21) where the clamping blocks (21) are close to each other, and is used to clamp the ground pile.

8. The pile pulling device for facilitating component replacement according to claim 7, characterized in that: Anti-slip grooves (212) for increasing clamping friction are provided in the notch (211) of the clamping block (21).

9. The pile pulling device for facilitating component replacement according to claim 8, characterized in that: The anti-slip pattern (212) is a grid pattern, a wave pattern, or an array of arc-shaped convex points.

10. A pile pulling device for facilitating component replacement according to any one of claims 1 to 9, characterized in that: The power part (1) is a combination of an air cylinder or an oil cylinder or a motor and a lead screw.

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