Anti-sinking type foundation pile

By designing anti-sinking foundation piles and utilizing the compression mechanism of conical outer piles, inner piles, and auxiliary side piles, the problem of increased friction in soft soil layers caused by traditional pile driving is solved, thereby improving pile driving efficiency and stability and ensuring the safety of building structures.

CN117364821BActive Publication Date: 2026-05-05GUBAO SECURITY TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUBAO SECURITY TECH (SHANGHAI) CO LTD
Filing Date
2023-10-25
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional piling methods are prone to soil movement in soft soil layers, increasing friction and affecting piling efficiency and stability.

Method used

A sinking-resistant foundation pile is designed, which adopts a conical outer pile, inner pile and auxiliary side pile structure. The contact area between the outer pile and the soil is reduced by the cooperation of the squeezing mechanism and the clamping block, and the friction is enhanced by the rotation of the side pile body and the soil breaking block.

Benefits of technology

It improves piling efficiency, reduces friction, enhances the stability of the foundation piles in the soil, and ensures the safety and stability of the building structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117364821B_ABST
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Abstract

This invention relates to the field of foundation pile technology and discloses an anti-sinking foundation pile, including an outer pile. The lower end of the outer pile is designed to be conical, and the upper section of the outer pile is cylindrical. An inner groove is opened at the upper end of the outer pile, and an inner pile is placed in the inner groove. A movable groove is opened on the side of the outer pile, and an auxiliary side pile is movably installed in the movable groove. The side of the auxiliary side pile is conical and inclined, and the inner pile is embedded in the inner groove. When the first locking block is embedded in the second locking groove, it acts on the inner pile, and the inner pile pushes the outer pile to move downward. The soil is squeezed by the outer pile and the main body of the side pile, so that the soil moves towards the outside of the outer pile. The effect of pile driving is achieved by utilizing the squeezing effect of the outer pile and the main body of the side pile. The main body of the side pile squeezes the soil outside the outer pile to the outside, so that the soil through which the outer pile passes cannot completely contact the outside of the outer pile, thereby reducing the contact area between the pile pit and the outside of the outer pile, reducing the friction between the outer pile and the pile pit, thereby facilitating the downward movement of the outer pile and promoting the pile driving efficiency.
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Description

Technical Field

[0001] This invention relates to the field of foundation pile technology, specifically to an anti-sinking foundation pile. Background Technology

[0002] When constructing large or high-rise buildings, if the ground is not strong enough or the soil is soft, it is often necessary to use foundation piles driven into the ground, commonly known as piling. This is to transfer the load of the upper building to the soil bearing layer or a harder ground to increase the safety and stability of the building structure.

[0003] Traditional piling involves driving six studs together in a plum blossom pattern to form the main pillar. Numerous outward-extending branches surround the main pillar. Once the main pillar is driven into the soil, a pit is formed. The friction between the pit and the main pillar is used to secure it. However, during piling, the soil is compressed by the main pillar and moves outward, remaining in constant contact with it. This causes the friction to gradually increase with the driving depth, making piling difficult. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an anti-sinking foundation pile.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-sinking foundation pile, comprising an outer pile, the lower end of which is designed to be conical, the upper section of which is cylindrical, an inner groove being formed at the upper end of the outer pile, an inner pile being placed in the inner groove, a movable groove being formed on the side of the outer pile, an auxiliary side pile being movably installed in the movable groove, the side of the auxiliary side pile being conical and inclined, and a compression mechanism being installed between the auxiliary side pile and the inner pile on the side of the auxiliary side pile near the inner groove.

[0008] Preferably, the auxiliary side pile includes a side pile body, which is designed as an inverted triangular block with a pointed cone at the lower end. A soil-breaking block is fixedly installed on the outside of the side pile body. The soil-breaking block is a tetrahedron with two inclined sides.

[0009] Preferably, a block is fixedly installed on the upper end of the side pile body and the soil-breaking block, a cylindrical block is fixedly installed on the block, the cylindrical block is a semi-cylinder, and a shaft is fixedly installed at the connection between the cylindrical block and the shaft.

[0010] Preferably, the upper end of the movable groove is designed as an arc groove, which is adapted to the shape of the cylindrical block. The arc groove partially surrounds the cylindrical block. The side pile body, block one, and cylindrical block are located outside the outer pile on the side away from the inner groove. Rotating grooves are opened on both sides of the movable groove. Shaft one is engaged in the rotating groove, and the side pile body, the soil breaking block, block one, and cylindrical block are installed in the movable groove through shaft one.

[0011] Preferably, the extrusion mechanism includes an extrusion block, which is fixedly installed on the side of the extrusion block and the block one near the inner groove. The extrusion block contacts the movable groove with an arc groove. The extrusion block is designed as a trapezoid. The upper end of the extrusion block extending into the inner groove is inclined. The slot one extends through the middle of the extrusion block to the bottom of the inner groove.

[0012] Preferably, a first locking block is fixedly installed on the inner pile. The size of the first locking block is adapted to the first locking slot and the second locking slot. Second locking blocks are fixedly installed on both sides of the first locking block. The number of the combination of the first locking block and the two second locking blocks on the inner pile is the same as the number of the first locking slot. The number of the first locking slot is the same as the number of the movable slot.

[0013] Preferably, the number of card slots two is the same as that of card slot one, and card slots two and card slot one are arranged alternately on the inner groove.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides an anti-sinking foundation pile, which has the following beneficial effects:

[0016] 1. This anti-sinking foundation pile embeds the inner pile into the inner trench. When the first locking block is embedded in the second locking slot, it acts on the inner pile, pushing the outer pile downwards. The soil is squeezed by the outer pile and the main body of the side pile, causing the soil to move towards the outside of the outer pile. The squeezing effect of the outer pile and the main body of the side pile achieves the piling effect. Moreover, by utilizing the shape design of the main body of the side pile, the main body of the side pile squeezes the soil outside the outer pile outwards, so that the soil passing through the outer pile cannot fully contact the outside of the outer pile, thereby reducing the contact area between the pile pit and the outside of the outer pile, reducing the friction between the outer pile and the pile pit, thus facilitating the downward movement of the outer pile and promoting piling efficiency.

[0017] 2. After the anti-sinking foundation pile is driven, the first locking block is moved out of the second locking slot, and then the first locking block is embedded into the first locking slot. After acting on the inner pile, the second locking block comes into contact with the compression block. After the second locking block compresses the compression block, the auxiliary side pile rotates in the movable groove around the first axis, so that the lower end of the side pile body and the soil breaking block comes into contact with the soil of the outer pile pit and embeds into the soil. Then the first locking block is embedded into the second locking slot and acts on the inner pile. At this time, the outer pile continues to move downward. The force exerted on the side pile body and the soil block is applied to the soil along the side pile body and the soil block, causing the side pile body and the soil block to continue to embed into the soil. The side pile body and the soil block rotate around the first axis. By utilizing the effect of the side pile body and the soil block embedding into the soil outside the pile pit of the outer pile, the force exerted on the entire device by the pile pit is no longer along the axis of the outer pile, thereby increasing the friction between the entire device and the pile pit, thus ensuring the stability of the entire device in the pile pit.

[0018] 3. This anti-sinking foundation pile, when the side pile body and the soil-breaking block rotate around axis one, utilizes the shape design of the side pile body to facilitate the soil-breaking block to separate the soil in the pile pit, thereby better embedding the side pile body and the soil-breaking block into the soil. The friction between the side pile body and the soil-breaking block and the soil promotes the stability of the entire device in the pile pit.

[0019] 4. This anti-sinking foundation pile utilizes the installation position design of the inner groove and cylindrical block, as well as the fixed connection between the extrusion block and the cylindrical block, so that the main body of the side pile and the soil-breaking block rotate around the first axis towards the outside of the outer pile, but cannot rotate towards the inside of the outer pile. This ensures that the soil-breaking block can achieve the effect of assisting in soil breaking when the outer pile moves downward. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the auxiliary side pile structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the auxiliary side pile structure of the present invention;

[0023] Figure 4 This is a top view of the external pile of the present invention.

[0024] In the diagram: 10. Outer pile; 11. Movable groove; 12. Inner groove; 13. Slot 1; 14. Slot 2; 15. Inner pile; 16. Block 1; 17. Block 2; 18. Arc groove; 19. Turning groove; 20. Auxiliary side pile; 21. Side pile body; 22. Breaking block; 23. Block 1; 24. Cylindrical block; 25. Shaft 1; 26. Extrusion block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-3 An anti-sinking foundation pile includes an outer pile 10, the lower end of which is designed to be conical and the upper section of which is cylindrical. An inner groove 12 is provided at the upper end of the outer pile 10, and an inner pile 15 is placed in the inner groove 12. A movable groove 11 is provided on the side of the outer pile 10, and an auxiliary side pile 20 is movably installed in the movable groove 11. The side of the auxiliary side pile 20 is conical and inclined. A pressing mechanism is installed between the auxiliary side pile 20 and the inner pile 15 on the side of the auxiliary side pile 20 near the inner groove 12.

[0027] The auxiliary side pile 20 includes a side pile body 21, which is designed as an inverted triangular block. The lower end of the side pile body 21 is cone-shaped. A soil-breaking block 22 is fixedly installed on the outside of the side pile body 21. The soil-breaking block 22 is a tetrahedron, and the two sides of the soil-breaking block 22 are inclined.

[0028] A block 23 is fixedly installed on the upper end of the side pile body 21 and the soil-breaking block 22. A cylindrical block 24 is fixedly installed on the block 23. The cylindrical block 24 is a semi-cylinder. A shaft 25 is fixedly installed at the connection between the cylindrical block 24 and the shaft 25.

[0029] The upper end of the movable groove 11 is designed as an arc groove 18, which is adapted to the shape of the cylindrical block 24. The arc groove 18 partially surrounds the cylindrical block 24. The side pile body 21, block 1 23 and cylindrical block 24 are located outside the outer pile 10 on the side away from the inner groove 12. Rotating grooves 19 are opened on both sides of the movable groove 11. The shaft 1 25 is engaged in the rotating groove 19 and the side pile body 21, the soil breaking block 22, block 1 23 and cylindrical block 24 are installed in the movable groove 11 through the shaft 1 25.

[0030] The extrusion mechanism includes an extrusion block 26, which is fixedly installed on the side of the extrusion block 22 and block 23 near the inner groove 12. The extrusion block 26 contacts the movable groove 11 with an arc groove 18. The extrusion block 26 is designed as a trapezoid. The upper end of the extrusion block 26 extending into the inner groove 12 is inclined. The slot 13 extends through the middle of the extrusion block 26 to the bottom of the inner groove 12.

[0031] A locking block 16 is fixedly installed on the inner pile 15. The size of the locking block 16 is adapted to the locking groove 13 and the locking groove 14. Locking blocks 27 are fixedly installed on both sides of the locking block 16. The number of the combination of the locking block 16 and the two locking blocks 27 on the inner pile 15 is the same as the number of the locking groove 13. The number of the locking groove 13 is the same as the number of the movable groove 11.

[0032] The number of card slots 2 14 is the same as that of card slots 1 13, and card slots 2 14 and card slots 1 13 are arranged alternately on the inner groove 12.

[0033] In use, the inner pile 15 is embedded into the inner groove 12. When the first locking block 16 is embedded into the second locking groove 14, it acts on the inner pile 15, pushing the outer pile 10 downward. The soil is squeezed by the outer pile 10 and the side pile body 21, causing the soil to move towards the outside of the outer pile 10. The squeezing effect of the outer pile 10 and the side pile body 21 achieves the piling effect. Moreover, by utilizing the shape design of the side pile body 21, the side pile body 21 can hold the outer soil of the outer pile 10. The soil is squeezed outwards, preventing the soil through which the outer pile 10 passes from fully contacting the outside of the outer pile 10. This reduces the contact area between the pile pit and the outside of the outer pile 10, decreasing the friction between the outer pile 10 and the pile pit. This facilitates the downward movement of the outer pile 10 and improves pile driving efficiency. After pile driving is completed, the first locking block 16 is moved out of the second locking slot 14, and then the first locking block 16 is embedded into the first locking slot 13. After acting on the inner pile 15, the second locking block 17 contacts the squeezing block 26, locking... After block 27 squeezes block 26, the auxiliary side pile 20 rotates within the movable groove 11 around shaft 25. This causes the lower ends of the side pile body 21 and the soil-breaking block 22 to come into contact with the soil in the outer pile pit of the outer pile 10 and embed themselves into the soil. Then, block 16 is embedded into the slot 24, acting on the inner pile 15. At this time, the outer pile 10 continues to move downward, while the side pile body 21 and the soil-breaking block 22, due to the force they receive, move along the side pile body 21 and the soil-breaking block. 22 acts on the soil, causing the side pile body 21 and the soil-breaking block 22 to continue to embed into the soil, and causing the side pile body 21 and the soil-breaking block 22 to rotate around the axis 25. Utilizing the effect of the side pile body 21 and the soil-breaking block 22 embedding into the soil of the outer pile 10, the force exerted on the entire device by the pile pit is no longer along the axis of the outer pile 10, thereby increasing the friction between the entire device and the pile pit, thus ensuring the stability of the entire device in the pile pit.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of anti-sinking foundation pile, comprising an outer pile (10), characterized in that: The lower end of the outer pile (10) is designed to be conical, and the upper part of the outer pile (10) is cylindrical. The upper end of the outer pile (10) is provided with an inner groove (12), and an inner pile (15) is placed in the inner groove (12). The side of the outer pile (10) is provided with a movable groove (11), and an auxiliary side pile (20) is movably installed in the movable groove (11). The side of the auxiliary side pile (20) is conical and inclined. An extrusion mechanism is installed between the auxiliary side pile (20) and the inner pile (15) on the side of the auxiliary side pile (20) near the inner groove (12). The auxiliary side pile (20) includes a side pile body (21), the side pile body (21) is designed as an inverted triangular block, the lower end of the side pile body (21) is a pointed cone, and a soil breaking block (22) is fixedly installed on the outside of the side pile body (21). The soil breaking block (22) is a tetrahedron, and the two sides of the soil breaking block (22) are inclined. Block 1 (23) is fixedly installed on the upper end of the side pile body (21) and the soil breaking block (22). A cylindrical block (24) is fixedly installed on the block 1 (23). The cylindrical block (24) is a semi-cylinder. A shaft 1 (25) is fixedly installed at the connection between the cylindrical block (24) and the block 1 (23). The upper end of the movable groove (11) is designed as an arc groove (18), which is adapted to the shape of the cylindrical block (24). The arc groove (18) partially surrounds the cylindrical block (24). The side pile body (21), block one (23) and cylindrical block (24) are located outside the outer pile (10) on the side away from the inner groove (12). Rotating grooves (19) are opened on both sides of the movable groove (11). The shaft one (25) is engaged in the rotating groove (19) and the side pile body (21), the soil breaking block (22), block one (23) and cylindrical block (24) are installed in the movable groove (11) through the shaft one (25). The extrusion mechanism includes an extrusion block (26), which is fixedly installed on the side of the extrusion block (22) and block one (23) near the inner groove (12). The extrusion block (26) is in contact with the movable groove (11) with an arc groove (18). The extrusion block (26) is designed as a trapezoid. The upper end of the extrusion block (26) extending into the inner groove (12) is inclined. The slot one (13) extends through the middle position of the extrusion block (26) to the bottom of the inner groove (12).

2. The anti-sinking foundation pile according to claim 1, characterized in that: A first locking block (16) is fixedly installed on the inner pile (15). The size of the first locking block (16) is adapted to the first locking slot (13) and the second locking slot (14). The second locking block (17) is fixedly installed on both sides of the first locking block (16). The number of the combination of the first locking block (16) and the two second locking blocks (17) on the inner pile (15) is the same as the number of the first locking slot (13). The number of the first locking slot (13) is the same as the number of the movable slot (11). The number of the second locking slot (14) is the same as the number of the first locking slot (13). The second locking slot (14) and the first locking slot (13) are arranged alternately on the inner slot (12).

Citation Information

Patent Citations

  • Compressive bearing capacity pile foundation structure

    CN212612587U

  • Tubular pile anti-settlement structure

    CN219315828U