Pile foundation pulling-out device for civil engineering

Abstract

The utility model relates to the technical field of pile pulling equipment, in particular to a pile foundation pulling device for civil engineering, which comprises a supporting assembly, the supporting assembly comprises a base, the horizontal end of the base is fixedly connected with a gradienter and a first hydraulic cylinder, and the outer wall of the top end of the first hydraulic cylinder is fixedly connected with a positioning support lug. The top end of the base is fixedly connected with a positioning plate; and the two clamping assemblies are arranged on the positioning plate and the positioning supporting lugs correspondingly, each clamping assembly comprises a bottom plate, and the bottom plates are fixedly connected with the positioning supporting lugs and the positioning plate correspondingly. Through the arrangement of the hinged displacement clamping plate in the clamping assembly, the adaptive diameter adjusting range of the clamping assembly can be effectively matched according to the length of the hinged rod, so that the adaptability of clamping and positioning of the clamping assembly is greatly improved, the clamping and positioning requirements of tubular piles with different diameters are met, the diameter adaptive range is wider, meanwhile, the extrusion area is larger, and the clamping assembly is suitable for large-scale popularization and application. And the clamping friction force can be improved, so that the pile pulling stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile pulling equipment, in particular to a pile foundation pulling device for civil engineering. Background Art

[0002] A hydraulic pile puller is a mechanical device that uses the power of a hydraulic cylinder to pull pipe pile foundations out of the ground. It is one of the commonly used equipment in civil engineering. The working principle of a hydraulic pile puller is to use the power of the hydraulic system and the lifting force of the hydraulic cylinder to achieve the pile pulling operation.

[0003] When the existing hydraulic pile puller performs the pile pulling operation of the pipe pile, it mainly clamps the pipe pile through the clamping assembly and then cooperates with the jacking of the jacking assembly to lift and pull out the pipe pile. However, the traditional hydraulic clamping assembly mainly achieves adaptability to different diameters through the conical surface clamping block, and its adaptable diameter range is relatively low. At the same time, the contact area with the pipe pile is small. Since the clamping surface of the clamping block presents a conical structure, the contact area of ​​the clamping part is small, thereby reducing the friction force squeezed with the pipe pile, thereby reducing the stability of the pile pulling. Utility Model Content

[0004] The purpose of the utility model is to provide a pile foundation extraction device for civil engineering, so as to solve the problem proposed in the above background technology that the clamping surface of the clamping block presents a conical structure, so that the contact surface of the clamping part is small, thereby reducing the friction force squeezed with the pipe pile, thereby reducing the stability of the pile extraction.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a pile foundation extraction device for civil engineering, comprising:

[0006] A support assembly, the support assembly comprising a base, a level and a first hydraulic cylinder are fixedly connected to the horizontal end of the base, a positioning lug is fixedly connected to the top outer wall of the first hydraulic cylinder, and a positioning plate is fixedly connected to the top of the base;

[0007] Two groups of clamping assemblies, the two groups of clamping assemblies are respectively arranged on the positioning plate and the positioning support ear, and the clamping assemblies include a base plate, the base plate is fixedly connected to the positioning support ear and the positioning plate respectively, a second hydraulic cylinder is fixedly connected to the top of the base plate, the other end of the second hydraulic cylinder is fixed to a top plate, the surfaces of the base plate and the top plate are both fixedly connected to a first hinge seat, the other end of the first hinge seat is hinged to a hinge rod, the other end of the hinge rod is hinged to a second hinge seat, and the outer wall of the second hinge seat is fixedly connected to the clamping plate.

[0008] Preferably, the base is in a U-shaped structure, and a group of first hydraulic cylinders are fixedly connected to the centers of the horizontal ends on both sides of the base, and the first hydraulic cylinders and positioning ears are symmetrically distributed on both sides of the upper clamping assembly.

[0009] Preferably, a circular ring is opened at the center of the positioning plate, and the inner diameter of the circular ring is larger than the inner diameter of the bottom plate. The bottom plate and the positioning plate are located on the same axis, and the two groups of clamping components are coaxially distributed.

[0010] Preferably, each group of the clamping assemblies is provided with no less than two second hydraulic cylinders, and the second hydraulic cylinders are evenly distributed in a circumference between the bottom plate and the top plate.

[0011] Preferably, the first hydraulic cylinder is used for lifting and displacing the positioning lug and the upper clamping assembly, and the second hydraulic cylinder is used for lifting and displacing the top plate.

[0012] Preferably, the height of the clamping plate is greater than the height of the second hinge seat, and both ends of the clamping plate are arc-shaped structures.

[0013] Preferably, the outer wall of the clamping plate away from the second hinged seat is a non-slip toothed structure, and six groups of clamping plates are evenly arranged on the circumference of each group of the clamping components, and the clamping plates are used for extrusion positioning of the outer wall of the pile foundation.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model, through the arrangement of the displacement clamping plate in the clamping assembly, enables the adaptation diameter adjustment range to be effectively adapted according to the length of the hinged rod, thereby greatly improving the adaptability of its clamping positioning, meeting the clamping positioning of pipe piles of different diameters, and having a higher diameter adaptation range. At the same time, its extrusion area is larger, which can improve its clamping friction force, thereby improving its pile pulling stability, and through the distribution arrangement of the upper and lower clamping assemblies, after the upper clamping assembly performs the pile pulling operation, the clamping positioning of the lower clamping assembly can avoid the sagging of the pipe pile during the resetting process of the upper clamping assembly, thereby ensuring its high efficiency in pile pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the appearance of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the clamping assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the clamping plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the distribution structure of the upper clamping assembly of the utility model;

[0019] Figure 5 It is a schematic diagram of the overall structure of the support assembly of the utility model.

[0020] In the figure: 1. Support assembly; 11. Base; 12. Level; 13. First hydraulic cylinder; 14. Positioning lug; 15. Positioning plate; 2. Clamping assembly; 21. Bottom plate; 22. Second hydraulic cylinder; 23. Top plate; 24. First articulated seat; 25. Articulated rod; 26. Second articulated seat; 27. Clamping plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an embodiment: a pile foundation extraction device for civil engineering, comprising:

[0023] A support assembly 1, the support assembly 1 includes a base 11, the horizontal end of the base 11 is fixedly connected with a spirit level 12 and a first hydraulic cylinder 13, the spirit level 12 is a common measuring tool for measuring small angles, and is used in the machinery industry and instrument manufacturing to measure the inclination angle relative to the horizontal position, the flatness and straightness of the guide rails of machine tool equipment, the horizontal position and vertical position of the equipment installation, etc., and the top outer wall of the first hydraulic cylinder 13 is fixedly connected with a positioning lug 14, and the top of the base 11 is fixedly connected with a positioning plate 15; two groups of clamping assemblies 2, the two groups of clamping assemblies 2 are respectively arranged on the positioning plate 15 and the positioning lug 14, and the clamping assembly 2 includes a bottom plate 21, the bottom plate 21 is fixedly connected with the positioning lug 14 and the positioning plate 15, and the second hydraulic cylinder 22 is fixedly connected to the top of the bottom plate 21, and the other end of the second hydraulic cylinder 22 is fixed with a top plate 23, the surfaces of the bottom plate 21 and the top plate 23 are fixedly connected with a first hinge seat 24, the other end of the first hinge seat 24 is hinged with a hinge rod 25, the other end of the hinge rod 25 is hinged with a second hinge seat 26, and the outer wall of the second hinge seat 26 is fixedly connected with a clamping plate 27. Through the setting of the clamping assembly 2, under the jacking of the second hydraulic cylinder 22, the position adjustment of the top plate 23 is realized, and then the hinge rod 25 is driven to rotate, so as to realize the position adjustment of the second hinge seat 26 and the clamping plate 27, and then the pipe piles of different diameters are clamped and positioned, and at the same time, the jacking of the first hydraulic cylinder 13 is cooperated, so that the upper clamping assembly 2 performs the pile pulling operation on the pipe pile. After the pile pulling is completed, the pipe pile is first clamped and positioned by the lower clamping assembly 2, and then the upper clamping assembly 2 is reset and descended, which avoids the secondary sinking of the pipe pile and ensures the high efficiency of the pile pulling.

[0024] Furthermore, the base 11 has a U-shaped structure, and a group of first hydraulic cylinders 13 are fixedly connected to the centers of the horizontal ends on both sides of the base 11. The first hydraulic cylinder 13 and the positioning ears 14 are symmetrically distributed on both sides of the upper clamping assembly 2. A circular ring is opened in the center of the positioning plate 15, and the inner diameter of the circular ring is larger than the inner diameter of the bottom plate 21. The bottom plate 21 and the positioning plate 15 are on the same axis. The two groups of clamping assemblies 2 are coaxially distributed and arranged coaxially to ensure the stability of clamping and pulling out the pipe piles. When in use, the device is sleeved on the outside of the pipe pile, and a horizontal support plate is arranged at the bottom of the base 11 to provide good supporting force.

[0025] Furthermore, each group of clamping assemblies 2 is provided with no less than two second hydraulic cylinders 22, and the second hydraulic cylinders 22 are evenly distributed in a circle between the bottom plate 21 and the top plate 23. The first hydraulic cylinder 13 is used for the lifting displacement of the positioning lug 14 and the upper clamping assembly 2, and the second hydraulic cylinder 22 is used for the lifting displacement of the top plate 23. The outside of each second articulated seat 26 is hinged with two articulated rods 25. The height of the clamping plate 27 is greater than the height of the second articulated seat 26, and both ends of the clamping plate 27 are arc-shaped structures. By setting the arc-shaped structure of the clamping plate 27, it can better adapt to the outer wall of the pipe pile for clamping.

[0026] Furthermore, the outer wall of the clamping plate 27 away from the second hinged seat 26 has an anti-slip tooth structure, and six groups of clamping plates 27 are evenly arranged on the circumference of each group of clamping components 2. The clamping plates 27 are used for extrusion positioning of the outer wall of the pile foundation. The setting of the anti-slip tooth structure can increase the friction force of contact with the pipe pile and further improve the stability of pile pulling.

[0027] Working principle: The first hydraulic cylinder 13 and the second hydraulic cylinder 22 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. When the present invention is in use, the device is first placed and positioned, and then the second hydraulic cylinder 22 is lifted or lowered by the driving of the upper clamping assembly 2, driving the top plate 23 to move, thereby driving the second hinged seat 26 and the clamping plate 27 to move through the hinge connection of the hinged rod 25, completing the clamping and positioning of the outer wall of the pipe pile, and then the upper clamping assembly 2 is driven upward by the lifting of the first hydraulic cylinder 13 to realize the pile pulling operation. After the pipe pile is clamped and positioned by the driving of the lower clamping assembly 2, the clamping of the upper clamping assembly 2 is released and then the pile is lowered and reset. After the upper clamping assembly 2 is clamped, the clamping of the lower clamping assembly 2 is first released, and then the pile pulling operation is performed. Repeating the above work can achieve stable and efficient pile pulling of the pipe pile.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pile extraction device for civil engineering, characterized in that: include: A support assembly (1), the support assembly (1) comprising a base (11), a level gauge (12) and a first hydraulic cylinder (13) being fixedly connected to a horizontal end of the base (11), a positioning lug (14) being fixedly connected to an outer wall of a top end of the first hydraulic cylinder (13), and a positioning plate (15) being fixedly connected to a top end of the base (11); Two groups of clamping assemblies (2), the two groups of clamping assemblies (2) are respectively arranged on the positioning plate (15) and the positioning lug (14), and the clamping assemblies (2) include a bottom plate (21), the bottom plate (21) is respectively fixedly connected to the positioning lug (14) and the positioning plate (15), a second hydraulic cylinder (22) is fixedly connected above the bottom plate (21), a top plate (23) is fixedly connected to the other end of the second hydraulic cylinder (22), a first hinge seat (24) is fixedly connected to the surface of the bottom plate (21) and the top plate (23), a hinge rod (25) is hinged to the other end of the first hinge seat (24), a second hinge seat (26) is hinged to the other end of the hinge rod (25), and a clamping plate (27) is fixedly connected to the outer wall of the second hinge seat (26).

2. A pile foundation extraction device for civil engineering according to claim 1, characterized in that: The base (11) is in a U-shaped structure, and a group of first hydraulic cylinders (13) are fixedly connected to the centers of the horizontal ends on both sides of the base (11), and the first hydraulic cylinders (13) and the positioning ears (14) are symmetrically distributed on both sides of the upper clamping assembly (2).

3. A pile foundation extraction device for civil engineering according to claim 1, characterized in that: A circular ring is provided at the center of the positioning plate (15), and the inner diameter of the circular ring is greater than the inner diameter of the bottom plate (21). The bottom plate (21) and the positioning plate (15) are located on the same axis, and the two groups of clamping components (2) are coaxially distributed.

4. A pile foundation extraction device for civil engineering according to claim 1, characterized in that: Each group of the clamping components (2) is provided with no less than two second hydraulic cylinders (22), and the second hydraulic cylinders (22) are evenly distributed in a circumferential manner between the bottom plate (21) and the top plate (23).

5. The pile foundation extraction device for civil engineering according to claim 1, characterized in that: The first hydraulic cylinder (13) is used for lifting and displacing the positioning support ear (14) and the upper clamping assembly (2), and the second hydraulic cylinder (22) is used for lifting and displacing the top plate (23).

6. A pile foundation extraction device for civil engineering according to claim 1, characterized in that: The height of the clamping plate (27) is greater than the height of the second hinge seat (26), and both ends of the clamping plate (27) are in an arc-shaped structure.

7. A pile foundation extraction device for civil engineering according to claim 6, characterized in that: The outer wall of the clamping plate (27) away from the second hinge seat (26) is an anti-slip tooth structure, and six groups of clamping plates (27) are evenly arranged on the circumference of each group of the clamping components (2). The clamping plates (27) are used for squeezing and positioning the outer wall of the pile foundation.

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