Static load uplift pile head physical anchoring device

By combining the trapezoidal block with the anchoring base, the risk of pile foundation floating and pull-out under tensile force is solved, the installation process is simplified, and construction efficiency and stability are improved.

CN224092479UActive Publication Date: 2026-04-07SUZHOU WUJIANG BINHU DETECTION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing pile head physical anchoring devices are susceptible to tensile forces during construction and long-term use, which can lead to the risk of pile floating or being pulled out of the soil. Moreover, installation is complex and labor-intensive, affecting construction efficiency.

Method used

The design incorporates a combination of a trapezoidal block, slot, locking block, chamber, spring, limiting plate, limiting block, limiting groove, mounting hole, and fixing column. The pile head body is fixed to the anchoring base through simple alignment and insertion operations, and the stability is improved by the threaded connection of the rotating block and bolts.

Benefits of technology

It effectively prevents pile foundation floating, simplifies the installation process, improves construction efficiency, and enhances the stability and pull-out resistance of the pile head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a static load uplift pile head physical anchoring device, which relates to the technical field of building construction, and comprises an anchoring base body and a pile head body, the middle part of the anchoring base body is provided with an insertion hole, the surface of the insertion hole is provided with a circular groove, the circular groove is internally provided with four fixing columns, and the fixing columns are fixedly connected with the pile head body. A mounting block is mounted on the outer side of the bottom of the pile head body, four through holes are formed in the mounting block, one end of each fixing column penetrates through the corresponding through hole and extends to the outside of the mounting block, and the surface of the pile head body is sleeved with a set of table-shaped blocks. According to the device, the table-shaped blocks, the clamping grooves, the clamping blocks, the cavities, the springs, the limiting plates, the limiting blocks, the limiting grooves, the mounting holes and the fixing columns are used in cooperation, the table-shaped blocks achieve the anti-drawing effect, floating of a pile foundation can be effectively prevented, meanwhile, workers can fix the pile head body through simple alignment and insertion operation, complexity of the mounting link is reduced, and the working efficiency is improved. And the working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and more specifically, it relates to a static load anti-uplift pile head physical anchoring device. Background Technology

[0002] Uplift piles are widely used in anti-buoyancy applications for large basements, uplift resistance for tall buildings, uplift resistance for offshore dock platforms, anchor pile foundations for suspension and cable-stayed bridges, pile foundations for large dock floor slabs, and anchor pile foundations in static load test piles. They are piles driven to counteract the buoyancy force exerted on the structure by water in the soil when the underground structure of a building is below the surrounding soil water level.

[0003] Based on the above, the inventors have discovered the following problems: Current pile head physical anchoring devices not only need to withstand the load during the construction phase, but also need to remain stable during long-term use. However, due to the effects of time and load, the pile foundation may be subjected to upward tensile or pull-out forces, such as groundwater pressure, soil buoyancy, or other structural loads, which may lead to the risk of the pile foundation floating or being pulled out of the soil layer. At the same time, the assembly of the above-mentioned overall structure is relatively cumbersome and laborious, which is not conducive to reducing construction difficulty or improving construction efficiency.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a static load anti-pull-out pile head physical anchoring device in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effect of this utility model of a static load anti-pull-out pile head physical anchoring device are achieved by the following specific technical means:

[0006] A static load-resistant pile head physical anchoring device includes an anchoring base and a pile head body. The anchoring base has a central insertion hole with a circular groove on its surface. Four fixing posts are installed inside the circular groove. An installation block is installed on the outer bottom of the pile head body, with four through holes inside the installation block. One end of each fixing post passes through a through hole and extends to the outside of the installation block. A set of frustum-shaped blocks is fitted onto the surface of the pile head body, with the frustum-shaped blocks located on top of the installation blocks. Four installation holes are formed at the bottom of the frustum-shaped blocks, matching the fixing posts. An installation assembly is installed inside the frustum-shaped blocks, and the installation assembly is connected to the fixing posts.

[0007] Furthermore, one of the frustum-shaped blocks has a slot on one side, and the other frustum-shaped block has a block on one side, the block matching the slot.

[0008] Furthermore, the mounting assembly includes several chambers formed inside the frustum-shaped block, with springs installed inside the chambers. A limiting plate is installed on one side of the spring, and a limiting block is installed on one side of the limiting plate. One end of the limiting block extends into the interior of the mounting hole. A set of limiting grooves is formed on both sides of the fixing column, and the limiting grooves match the limiting blocks.

[0009] Furthermore, a rotating block is fitted onto the surface of the pile head body, the rotating block has an internal thread, and threaded holes are provided on both sides of the rotating block. A set of frustum-shaped blocks has threaded holes provided inside, and bolts are installed inside the threaded holes.

[0010] Furthermore, the rotating block is threadedly connected to the pile head body.

[0011] Furthermore, the mounting block matches the circular groove, and the insertion hole matches the pile head body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By using a combination of a trapezoidal block, a slot, a locking block, a chamber, a spring, a limiting plate, a limiting block, a limiting groove, a mounting hole, and a fixing post, when the pile head body is inserted into the insertion hole and the mounting block is locked into the circular groove, the mounting hole on the trapezoidal block is aligned with the fixing post. During the alignment process, the limiting block is subjected to force inside the chamber. With the cooperation of the spring, the limiting plate drives the limiting block to move into the chamber. When it moves to the position of the limiting groove, the limiting block is locked into the limiting groove. By following the above operation, the other half of the trapezoidal block can be installed, thus fixing the pile head body to the anchoring base. Through the above design, the trapezoidal block plays a role in resisting pull-out, which can effectively prevent the pile foundation from floating. At the same time, workers can complete the fixing of the pile head body through simple alignment and insertion operations, reducing the complexity of the installation process and improving work efficiency.

[0014] After the truncated block is installed, rotate the rotating block until it fits against the truncated block. Then, pass the bolts through threaded hole one and threaded hole two in sequence and tighten them. This design helps to improve the stability of the pile head body and effectively prevents the truncated block from detaching, further improving the pull-out resistance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a static load anti-pull-out pile head physical anchoring device according to this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of a static load anti-pull-out pile head physical anchoring device according to this utility model.

[0017] Figure 3This is a schematic diagram of the internal structure of a table-shaped block of a static load anti-pull-out pile head physical anchoring device according to this utility model.

[0018] Figure 4 This is a schematic diagram of the bottom plane of the table-shaped block of a static load anti-pull-out pile head physical anchoring device according to this utility model.

[0019] Figure 5 This utility model relates to a static load anti-pull-out pile head physical anchoring device. Figure 4 Enlarged diagram of point A in the middle.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Anchorage base; 2. Pile head body; 3. Insertion hole; 4. Circular groove; 5. Fixing column; 6. Mounting block; 7. Through hole; 8. Frustum block; 9. Mounting hole; 10. Slot; 11. Slot block; 12. Chamber; 13. Spring; 14. Limiting plate; 15. Limiting block; 16. Limiting groove; 17. Rotating block; 18. Internal thread; 19. Bolt; 20. Threaded hole two. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 5As shown:

[0027] This utility model provides a static load anti-pull-out pile head physical anchoring device, including an anchoring base 1 and a pile head body 2. The anchoring base 1 has an insertion hole 3 in the middle, and a circular groove 4 is formed on the surface of the insertion hole 3. Four fixing columns 5 are installed inside the circular groove 4. An installation block 6 is installed on the outer bottom of the pile head body 2. The installation block 6 has four through holes 7 inside. One end of the fixing column 5 passes through the through hole 7 and extends to the outside of the installation block 6. A set of frustum blocks 8 is fitted on the surface of the pile head body 2. The frustum blocks 8 are located on top of the installation block 6. The bottom of the frustum blocks 8 has four installation holes 9, which match the fixing columns 5. An installation component is installed inside the frustum blocks 8, and the installation component is connected to the fixing columns 5.

[0028] One of the frustum blocks 8 has a slot 10 on one side, and the other frustum block 8 has a block 11 installed on one side, the block 11 matching the slot 10.

[0029] The installation assembly includes several chambers 12 formed inside the frustum-shaped block 8. A spring 13 is installed inside each chamber 12. A limiting plate 14 is installed on one side of each spring 13, and a limiting block 15 is installed on one side of each limiting plate 14. One end of the limiting block 15 extends into the mounting hole 9. A set of limiting grooves 16 are formed on both sides of the fixing post 5. The limiting grooves 16 match the limiting blocks 15. Through the coordinated use of the frustum-shaped block 8, the slot 10, the locking block 11, the chambers 12, the spring 13, the limiting plate 14, the limiting block 15, the limiting grooves 16, the mounting hole 9, and the fixing post 5, when the pile head body 2 is inserted into the insertion hole 3 and the mounting block 6 is engaged in the circular groove 4... Align the mounting hole 9 on the trapezoidal block 8 with the fixing column 5. During the alignment process, the limiting block 15 is forced into the cavity 12. With the cooperation of the spring 13, the limiting plate 14 drives the limiting block 15 to move into the cavity 12. When it moves to the position of the limiting groove 16, the limiting block 15 is inserted into the limiting groove 16. By following the above operation, the other half of the trapezoidal block 8 can be installed, and the pile head body 2 can be fixed to the anchoring base 1. Through the above design, the trapezoidal block 8 plays a role in resisting pull-out, which can effectively prevent the pile foundation from floating. At the same time, workers can complete the fixing of the pile head body 2 through simple alignment and insertion operations, reducing the complexity of the installation process and improving work efficiency.

[0030] The pile head body 2 is fitted with a rotating block 17, which has an internal thread 18. The rotating block 17 has threaded holes on both sides. A set of frustum blocks 8 has threaded holes 20 inside. Bolts 19 are installed inside the threaded holes 1 and 20. After the frustum blocks 8 are installed, the rotating block 17 is rotated until it fits against the frustum blocks 8. Then the bolts 19 are passed through the threaded holes 1 and 20 in sequence and tightened. This design helps to improve the stability of the pile head body 2 and effectively prevents the frustum blocks 8 from detaching, further improving the pull-out resistance.

[0031] The rotating block 17 is threadedly connected to the pile head body 2.

[0032] The mounting block 6 is matched with the circular groove 4, and the insertion hole 3 is matched with the pile head body 2.

[0033] The specific usage and function of this embodiment are as follows:

[0034] Before using this utility model, first confirm the integrity of the device. First, place the anchoring base 1 in the dug pit, then insert the pile head body 2 into the insertion hole 3. Simultaneously, the mounting block 6 is inserted into the circular groove 4. Since one end of the fixing post 5 passes through the through hole 7 and extends to the outside of the mounting block 6, the trapezoidal block 8 can be secured to the external fixing post 5. During alignment, the limiting block 15 is forced into the cavity 12. With the cooperation of the spring 13, the limiting plate 14 drives the limiting block 15 to move into the cavity 12. When it reaches the position of the limiting groove 16, the limiting block 15 is engaged in the limiting groove 16. Following the above operations, the other half of the trapezoidal block 8 can be installed, thus securing the pile head. The main body 2 is fixed to the anchoring base 1. Then, the rotating block 17 is rotated until it fits against the trapezoidal block 8. Then, the bolts 19 are passed through the threaded hole 1 and the threaded hole 20 in sequence and tightened. After installation, concrete is poured into the pit to completely cover the pile head body 2, the anchoring base 1, the mounting block 6, the trapezoidal block 8 and the rotating block 17. Thus, the anchoring of the pile head body 2 is completed. Through the above design, the trapezoidal block 8 plays a role in resisting pull-out and can effectively prevent the pile foundation from floating. At the same time, workers can complete the fixing of the pile head body 2 through simple alignment and insertion operations, which reduces the complexity of the installation process and improves work efficiency.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A static load-resistant pull-out pile head physical anchoring device, comprising an anchoring base (1) and a pile head body (2), characterized in that: The anchoring base (1) has an insertion hole (3) in the middle, and a circular groove (4) is formed on the surface of the insertion hole (3). Four fixing posts (5) are installed inside the circular groove (4). An installation block (6) is installed on the bottom outer side of the pile head body (2). Four through holes (7) are formed inside the installation block (6). One end of the fixing post (5) passes through the through hole (7) and extends to the outside of the installation block (6). A set of frustum blocks (8) is fitted on the surface of the pile head body (2). The frustum blocks (8) are located on the top of the installation block (6). Four installation holes (9) are formed at the bottom of the frustum blocks (8). The installation holes (9) match the fixing posts (5). An installation component is installed inside the frustum blocks (8). The installation component is connected to the fixing posts (5).

2. The static load pull-out pile head physical anchoring device as described in claim 1, characterized in that: One of the frustum blocks (8) has a slot (10) on one side, and the other frustum block (8) has a block (11) installed on one side, the block (11) matching the slot (10).

3. The static load pull-out pile head physical anchoring device as described in claim 2, characterized in that: The mounting assembly includes several chambers (12) formed inside the frustum block (8). A spring (13) is installed inside the chamber (12). A limiting plate (14) is installed on one side of the spring (13). A limiting block (15) is installed on one side of the limiting plate (14). One end of the limiting block (15) extends into the interior of the mounting hole (9). A set of limiting grooves (16) are formed on both sides of the fixing post (5). The limiting grooves (16) match the limiting blocks (15).

4. The static load pull-out pile head physical anchoring device as described in claim 3, characterized in that: The surface of the pile head body (2) is fitted with a rotating block (17), the rotating block (17) is provided with an internal thread (18), the rotating block (17) is provided with a threaded hole on both sides, and a set of the frustum blocks (8) is provided with a threaded hole (20), and bolts (19) are installed inside the threaded hole and the threaded hole (20).

5. The static load pull-out pile head physical anchoring device as described in claim 4, characterized in that: The rotating block (17) is threadedly connected to the pile head body (2).

6. The static load pull-out pile head physical anchoring device as described in claim 5, characterized in that: The mounting block (6) matches the circular groove (4), and the insertion hole (3) matches the pile head body (2).