Large-blade spiral ground pile

The assembly and convenient replacement of helical piles are achieved through fastening bolts and bolt connections, which solves the problem of high costs when the helical blades are damaged, and allows for pile length adjustment, thereby improving construction efficiency and the adaptability of the piles.

CN223963922UActive Publication Date: 2026-03-03SICHUAN LUFU XINNENG METAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing helical piles require complete replacement when the helical blades are damaged, increasing usage costs. Furthermore, the pile length is fixed and cannot be adjusted according to terrain.

Method used

By using fastening bolts, fixing bolts and connecting rings, as well as assembly bolts and assembly rings, the top rod, first rod, second rod and spiral soil-breaking pile can be assembled together, making it easy to replace damaged parts, and the pile length can be adjusted by inserting different numbers of first rods or second rods.

Benefits of technology

It reduces the cost of use, improves the flexibility and adaptability of ground piles, allows for adjustment of pile length according to terrain needs, enhances the contact area with the soil, distributes load evenly, and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223963922U_ABST
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Abstract

The utility model discloses a large-blade spiral ground pile, and particularly relates to the technical field of spiral ground piles, which comprises a spiral ground pile main body, the spiral ground pile body comprises a top rod, a first rod, a second rod and a spiral ground breaking pile which are sequentially distributed from top to bottom, large spiral pieces are installed outside the first rod and the second rod, and connecting rings are installed inside the top end of the first rod and the top end of the second rod. Through the connection of the fastening bolt, the fixing bolt and the connecting ring and the connection of the assembling bolt and the assembling ring, the combined assembly of the top rod, the first rod, the second rod and the spiral ground breaking pile can be realized, meanwhile, the effect of conveniently replacing the damaged top rod, the damaged first rod, the damaged second rod and the damaged spiral ground breaking pile can be realized, the use cost is reduced, and the use effect is improved. And by means of inserting connection of the first rods and the second rods, the first rods or the second rods of different numbers can be assembled through the fastening bolts, and therefore the length of the spiral ground pile body can be flexibly combined according to the terrain requirement.
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Description

Technical Field

[0001] This utility model relates to the field of spiral ground pile technology, and more specifically to a large-blade spiral ground pile. Background Technology

[0002] A helical pile is a type of pile structure that penetrates deep into the soil. Typically made of steel, it resembles a screw in shape, with a helical texture or blades on its surface. Helical piles rely on rotational torque to drive the pile into the soil. During this process, the helical blades cut and compress the soil, causing soil particles to move outwards, forming a cylindrical cavity along which the pile gradually penetrates the soil. Due to the special shape of the helical blades, a downward pulling force is generated during driving, helping the pile overcome soil resistance and successfully penetrate the soil layer. Compared to traditional foundation types such as cast-in-place piles and driven piles, helical piles offer faster construction speeds. Their installation process is relatively simple, requiring no large construction equipment or complex techniques, allowing for the installation of a large number of piles in a short time, effectively shortening the construction period. They are widely used in the foundations of various buildings, such as residential, commercial, and industrial plants. Especially in areas with poor geological conditions or strict settlement requirements, helical piles provide stable foundation support, ensuring the safe use of buildings.

[0003] As shown in the prior art published in CN215211124U, although this prior art uses helical blades to guide the pile into the soil layer, and the conical structure of the pile can effectively reduce the soil's resistance force, thus facilitating the pile's penetration into the soil layer and achieving a stable connection between the pile and the soil, this prior art requires the entire pile to be replaced when the helical blades are damaged, which increases the cost of use. Furthermore, this technical solution limits the pile length, preventing it from being adjusted according to terrain, thus presenting certain limitations. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a large-blade helical pile. Through the connection of fastening bolts, fixing bolts, and connecting rings, and the connection of assembly bolts and assembly rings, the top rod, first rod, second rod, and helical soil-breaking pile can be assembled in combination. This also allows for convenient replacement of damaged top rods, first rods, second rods, and helical soil-breaking piles, reducing operating costs. Furthermore, by inserting the first and second rods, different numbers of first or second rods can be assembled using fastening bolts. This allows for flexible combination of the length of the helical pile body according to terrain requirements, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-blade helical ground pile, comprising a helical ground pile body;

[0006] The main body of the spiral pile includes a top rod, a first rod, a second rod, and a spiral soil-breaking pile distributed from top to bottom. Large spiral blades are installed on the outside of the first rod and the second rod. Connecting rings are installed inside the top of the first rod and the top of the second rod. The top of the connecting ring on the second rod extends to the bottom of the first rod, and the top of the connecting ring on the first rod extends to the bottom of the top rod.

[0007] In a preferred embodiment, the bottom end of the first rod is provided with a plurality of fastening bolts, and the fastening bolts pass through the first rod and extend into the connecting ring located on the second rod, wherein the fastening bolts are threadedly connected to the connecting ring.

[0008] In a preferred embodiment, an assembly ring is installed at the top of the spiral soil-breaking pile, and the top of the assembly ring extends into the interior of the bottom end of the second rod.

[0009] The second rod has multiple spaced mounting bolts on its bottom outer side. The mounting bolts pass through the second rod and extend into the mounting ring. The mounting bolts are threadedly connected to the mounting ring.

[0010] In a preferred embodiment, the bottom end of the top rod is provided with a plurality of spaced fixing bolts, and the fixing bolts pass through the top rod and extend into the connecting ring located on the first rod, and the fixing bolts are threadedly connected to the connecting ring.

[0011] In a preferred embodiment, a fixing ring is installed on the outside of the top end of the top rod, and a plurality of spaced fixing holes are provided on the outside of the fixing ring.

[0012] In a preferred embodiment, a plurality of spaced reinforcing rods are installed at the bottom of the fixing ring, and the bottom ends of the reinforcing rods are fixed together with the top rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] By connecting the fastening bolts, fixing bolts, and connecting rings, and by connecting the assembly bolts and assembly rings, the top rod, the first rod, the second rod, and the spiral ground-breaking pile can be assembled together. At the same time, this also enables the convenient replacement of damaged top rods, the first rod, the second rod, and the spiral ground-breaking pile, reducing the cost of use. Furthermore, by inserting the first rod and the second rod, different numbers of the first rod or the second rod can be assembled by fastening the bolts, so that the length of the spiral ground pile body can be flexibly combined according to the terrain requirements. Attached Figure Description

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

[0016] Figure 2 This is an exploded view of the top rod of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of section B;

[0019] Figure 5 This is the front view of the first rod of this utility model.

[0020] The attached diagram is labeled as follows: 1. Top rod; 2. First rod; 3. Second rod; 4. Spiral soil-breaking pile; 5. Connecting ring; 6. Fastening bolt; 7. Assembly ring; 8. Assembly bolt; 9. Fixing bolt; 10. Fixing ring; 11. Fixing hole; 12. Reinforcing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Refer to the instruction manual appendix Figure 1-5 This utility model provides a large-blade helical ground pile, including a helical ground pile body;

[0023] The main body of the spiral pile includes a top rod 1, a first rod 2, a second rod 3, and a spiral breaking pile 4 arranged sequentially from top to bottom. Large spiral blades 13 are installed on the outside of the first rod 2 and the second rod 3. Connecting rings 5 ​​are installed inside the top of the first rod 2 and the top of the second rod 3. The top of the connecting ring 5 on the second rod 3 extends to the bottom of the first rod 2. The top of the connecting ring 5 on the first rod 2 extends to the bottom of the top rod 1. Multiple fastening bolts 6 are provided on the outside of the bottom of the first rod 2. The fastening bolts 6 penetrate the first rod 2 and extend into the connecting ring 5 on the second rod 3. The fastening bolts 6 are threadedly connected to the connecting ring 5.

[0024] In use, workers can connect the first rod 2 and the second rod 3 by tightening the bolt 6 to the connecting ring 5 on the second rod 3, thus achieving the effect of assembling the first rod 2 and the second rod 3 together. Alternatively, if the large spiral blade 13 on the first rod 2 or the second rod 3 is damaged, the first rod 2 and the second rod 3 can be disassembled by removing the bolt 6, allowing for convenient disassembly and replacement / maintenance. Furthermore, the insertion of the first rod 2 and the second rod 3 allows workers to assemble different numbers of the first rod 2 or the second rod 3 using the bolt 6, enabling flexible combinations of the length of the spiral pile body according to terrain requirements, thereby improving the practicality of this invention. Since both the first rod 2 and the second rod 3 are equipped with large spiral blades 13, the contact area between the spiral pile body and the soil can be effectively increased, distributing the load more evenly over a larger area of ​​soil, reducing pressure per unit area, effectively preventing foundation instability caused by excessive local pressure, and also allowing for faster drilling into the soil, thus shortening the construction period and improving work efficiency.

[0025] To improve the efficiency of the initial drilling of the helical pile body into the soil, it is necessary to improve the soil breaking effect of the helical pile body, such as... Figure 1 and 2 As shown, the top of the spiral soil-breaking pile 4 is equipped with an assembly ring 7, the top of which extends to the inside of the bottom end of the second rod 3. Multiple spaced assembly bolts 8 are provided on the outside of the bottom end of the second rod 3. The assembly bolts 8 penetrate the second rod 3 and extend into the assembly ring 7. The assembly bolts 8 are threadedly connected to the assembly ring 7. Workers hold the spiral soil-breaking pile 4 and place the assembly ring 7 inside the second rod 3. The assembly ring 7 is then fixed using the assembly bolts 8, thus connecting the spiral soil-breaking pile 4 to the second rod 3. Subsequently, the spiral soil-breaking pile 4 is used to drill into the soil, improving the initial soil-breaking efficiency of the spiral pile body.

[0026] To facilitate the support of the equipment by the helical pile body, it is necessary to connect it to the equipment via a top rod 1, such as... Figure 1 and 2As shown, the bottom of the top rod 1 is provided with a plurality of spaced fixing bolts 9, which penetrate the top rod 1 and extend into the connecting ring 5 located on the first rod 2. The fixing bolts 9 are threadedly connected to the connecting ring 5. The top of the top rod 1 is provided with a fixing ring 10, and the fixing ring 10 is provided with a plurality of spaced fixing holes 11. The bottom of the fixing ring 10 is provided with a plurality of spaced reinforcing rods 12, and the bottom ends of the reinforcing rods 12 are fixed together with the top rod 1. The operator fits the top rod 1 onto the outside of the connecting ring 5 on the first rod 2, and then the top rod 1 is assembled and installed on the outside of the first rod 2 by means of the connection between the fixing bolts 9 and the connecting ring 5. Subsequently, the fixing ring 10 is connected to the equipment by the three fixing holes 11, so as to achieve the effect of the helical pile body supporting the equipment. At the same time, the fixing ring 10 is supported by the reinforcing rods 12 to ensure the stability of the fixing ring 10.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large blade screw pile characterised in that: The screw pile body comprises a top rod (1), a first rod (2), a second rod (3) and a screw soil breaking pile (4) arranged in sequence from top to bottom, large screw blades (13) are mounted on the outer part of the first rod (2) and the second rod (3), an adapter ring (5) is mounted on the inner part of the top end of the first rod (2) and the second rod (3), the top end of the adapter ring (5) on the second rod (3) extends to the inner part of the bottom end of the first rod (2), and the top end of the adapter ring (5) on the first rod (2) extends to the inner part of the bottom end of the top rod (1). A plurality of fastening bolts (6) are arranged on the outer part of the bottom end of the first rod (2), the fastening bolts (6) extend through the first rod (2) and into the inner part of the adapter ring (5) on the second rod (3), and the fastening bolts (6) are threadedly connected with the adapter ring (5).

2. A large blade screw pile according to claim 1, wherein: An assembly ring (7) is mounted on the top end of the screw soil breaking pile (4), and the top end of the assembly ring (7) extends to the inner part of the bottom end of the second rod (3).

3. A large blade screw pile according to claim 1, wherein: A plurality of assembly bolts (8) are arranged on the outer part of the bottom end of the second rod (3) at intervals, the assembly bolts (8) extend through the second rod (3) and into the inner part of the assembly ring (7), and the assembly bolts (8) are threadedly connected with the assembly ring (7). A plurality of fixing bolts (9) are arranged on the outer part of the bottom end of the top rod (1) at intervals, the fixing bolts (9) extend through the top rod (1) and into the inner part of the adapter ring (5) on the first rod (2), and the fixing bolts (9) are threadedly connected with the adapter ring (5).

4. A large blade screw pile according to claim 1, wherein: A fixing ring (10) is mounted on the outer part of the top end of the top rod (1), and a plurality of fixing holes (11) are arranged on the outer part of the fixing ring (10) at intervals.

5. A large blade screw pile according to claim 1, wherein: A plurality of reinforcing rods (12) are arranged on the bottom part of the fixing ring (10) at intervals, and the bottom ends of the reinforcing rods (12) are fixed with the top rod (1).

6. A large blade screw pile according to claim 5, wherein: ​

Citation Information

Patent Citations

  • A type of ground pile

    CN215211124U