A standard section structure for a three-axis mixing pile drill rod and admixture pipeline with full drive

CN224769372UActive Publication Date: 2026-09-18SHANGHAI TIE NENG CONSTR ENG CO LTD
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Patent Information

Application Number
CN202522727422.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-09-18
Estimated Expiration
2035-12-23

AI Technical Summary

Technical Problem

[0003]目前传统三轴搅拌桩增加外加剂通道时,由于外加剂管道本身没有动力,管道弯曲会导致外加剂流动不畅,甚至堵塞管道

Benefits of technology

[0012] 1) This utility model forms a fully driven structure through transmission gears, which enables the admixture pipeline and the three-axis mixing drill rod to be drilled together, ensuring that the admixture pipeline can reach the predetermined position smoothly and avoiding delays in construction progress due to pipeline bending and drilling difficulties. No matter how the pile length changes, this structure can effectively deliver the admixture to the designated position, increasing the flexibility and versatility of construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a fully driven standard section structure for a triaxial mixing pile drill rod and admixture pipeline. The triaxial mixing drill rod and admixture pipeline are spaced apart, and the triaxial mixing drill rod is connected to the admixture pipeline via gears. A steel outer shell is fitted in the middle of the standard section structure, and the gears are located inside the steel outer shell. The beneficial effects of this utility model are: the fully driven structure formed by the transmission gears allows the admixture pipeline and the triaxial mixing drill rod to be drilled together, ensuring that the admixture pipeline can smoothly reach the predetermined position and avoiding delays in construction progress due to pipeline bending and drilling difficulties. Regardless of the pile length, this structure can effectively deliver the admixture to the designated position, increasing the flexibility and versatility of construction; the spaced arrangement of the triaxial mixing drill rod and admixture pipeline allows the admixture to be evenly distributed in all parts of the mixing pile, thereby improving the overall quality of the mixing pile.
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Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to a standard section structure for a three-axis mixing pile drill rod and admixture pipeline with full drive. Background Technology

[0002] In modern civil engineering construction, foundation treatment is a crucial step. With the continuous expansion of building scale and the increasing demands of engineering projects, traditional foundation treatment methods are gradually becoming insufficient to meet complex engineering needs, leading to the development of triaxial mixing pile technology. As a novel foundation reinforcement and cutoff wall technology, triaxial mixing pile technology can effectively improve the strength and stability of the foundation and is suitable for adverse geological conditions such as soft soil foundations. During construction, it causes minimal disturbance to the surrounding soil, reducing its impact on the surrounding environment.

[0003] Currently, when adding admixture channels to traditional three-axis mixing piles, the admixture pipes themselves lack power, and pipe bending can lead to poor admixture flow or even blockage. Furthermore, if the admixture pipes cannot reach the designed depth, it will prevent the accurate addition of admixtures according to design requirements, causing the mixing pile performance to fall short of expectations and affecting the structural stability and safety of the entire project.

[0004] Therefore, there is an urgent need for a new type of triaxial mixing pile drill rod and admixture pipeline to overcome the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a standard section structure for the fully driven three-axis mixing pile drill rod and admixture pipeline.

[0006] This type of standard section structure features a fully driven three-axis mixing pile drill rod and admixture pipeline. The three-axis mixing drill rod and admixture pipeline are spaced apart. The three-axis mixing drill rod is connected to the admixture pipeline via gears. The standard section structure is fitted with a steel outer shell in the middle, and the gears are located inside the steel outer shell.

[0007] The gears include a three-axis stirring drill rod drive gear and an admixture pipeline drive gear, which are connected by a transmission gear.

[0008] Preferably, three-axis stirring drill rod drive teeth are fixed on the three-axis stirring drill rods on both sides, and admixture pipe drive teeth are fixed on the admixture pipes. Adjacent admixture pipe drive teeth and three-axis stirring drill rod drive teeth are connected by transmission gears.

[0009] Preferably, the transmission gear shaft is provided with a transmission gear center shaft, and the upper and lower ends of the transmission gear center shaft are fixed to the upper and lower inner walls of the steel housing, respectively.

[0010] Preferably, the triaxial stirring drill rod and the admixture pipeline are arranged in a straight line, and the upper and lower ends of the triaxial stirring drill rod and the admixture pipeline are at the same height.

[0011] The beneficial effects of this utility model are:

[0012] 1) This utility model forms a fully driven structure through transmission gears, which enables the admixture pipeline and the three-axis mixing drill rod to be drilled together, ensuring that the admixture pipeline can reach the predetermined position smoothly and avoiding delays in construction progress due to pipeline bending and drilling difficulties. No matter how the pile length changes, this structure can effectively deliver the admixture to the designated position, increasing the flexibility and versatility of construction.

[0013] 2) This utility model sets the triaxial mixing drill rod and the admixture pipeline at intervals, which enables the admixture to be evenly distributed in various parts of the mixing pile, thereby improving the overall quality of the mixing pile. Stable and accurate addition of admixture helps to improve the consistency of the performance of the mixing pile and ensure the reliability of the project quality. Attached Figure Description

[0014] Figure 1 Structural diagram of a standard section of a three-axis mixing pile drill rod and admixture pipeline with full drive;

[0015] Figure 2 Top view of the standard section structure of the three-axis mixing pile drill rod and admixture pipeline with full drive;

[0016] Figure 3 This is a front view of the standard section structure of the three-axis mixing pile drill rod and admixture pipeline with full drive.

[0017] Explanation of reference numerals in the attached drawings: 1. Triaxial stirring drill rod; 2. Reinforced connecting flange of triaxial stirring drill rod; 3. Additive pipeline; 4. Reinforced connecting flange of additive pipeline; 5. Drive gear of triaxial stirring drill rod; 6. Transmission gear; 7. Drive gear of additive pipeline; 8. Central shaft of transmission gear; 9. Steel outer shell. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0019] This type of three-axis mixing pile drill rod and admixture pipeline fully driven standard section structure has three-axis mixing drill rod 1 and admixture pipeline 3 set at intervals, arranged in a straight line, and the upper and lower ends of the three-axis mixing drill rod 1 and admixture pipeline 3 are at the same height.

[0020] The upper and lower ends of the triaxial mixing drill rod 1 are equipped with reinforced connecting flanges 2. A reinforcing structure is provided at the connection point with the triaxial mixing drill rod 1 to ensure overall strength and prevent problems such as detachment during construction. The reinforced connecting flanges 2 of the triaxial mixing pile drill rod 1 are provided with bolt holes for easy connection with traditional triaxial mixing drill rods 1, increasing overall flexibility.

[0021] Similarly, both ends of the admixture pipeline 3 are provided with admixture pipeline reinforced connecting flanges 4. A reinforcing structure is provided at the connection between the admixture pipeline reinforced connecting flange 4 and the admixture pipeline 3. The admixture pipeline reinforced connecting flange 4 is provided with bolt holes to facilitate interconnection with the admixture pipeline 4 and increase overall flexibility.

[0022] The three-axis stirring drill rod 1 is connected to the admixture pipe 3 via gears. The standard section structure is fitted with a steel outer shell 9 in the middle. The gears are located inside the steel outer shell 9. The steel outer shell 9 protects the entire transmission system and extends the service life and durability of the overall structure.

[0023] The gear includes a three-axis stirring drill rod drive gear 5 and an admixture pipeline drive gear 7. The three-axis stirring drill rod drive gear 5 is located in the middle of the three-axis stirring drill rod 1 and is made of high-strength steel to increase overall durability. The admixture pipeline drive gear is located in the middle of the admixture pipeline 3. The admixture pipeline drive gear 7 and the three-axis stirring drill rod drive gear 5 are connected by a transmission gear 6. Driven by the three-axis stirring drill rod 1, the transmission gear 6 transmits the rotational torque to the admixture pipeline 3, causing it to also rotate.

[0024] Specifically, the three-axis stirring drill rod 1 has no gear on the stirring drill rod in the middle, and three-axis stirring drill rod drive teeth 5 are fixed on the three-axis stirring drill rods 1 on both sides respectively. The admixture pipeline drive teeth 7 are fixed on the admixture pipeline 3. The adjacent admixture pipeline drive teeth 7 and the three-axis stirring drill rod drive teeth 5 are connected by transmission gears 6.

[0025] A central shaft 8 is inserted through the shaft of the transmission gear 6, and the upper and lower ends of the central shaft 8 are fixed to the upper and lower inner walls of the steel housing 9, respectively. The position of the steel housing 9 is controlled by the central shaft 8, the triaxial stirring drill rod 1, and the additive pipeline 3, so that it will not rotate due to the rotation of the triaxial stirring drill rod 1 and the additive pipeline 3.

Claims

1. A triaxial mixing pile drill rod and admixture pipeline full-drive standard joint structure, characterized in that, The three-axis stirring drill rod and the admixture pipeline are arranged at intervals. The three-axis stirring drill rod is connected to the admixture pipeline through gears. The standard section structure is fitted with a steel shell in the middle, and the gear is located inside the steel shell. The gears include a three-axis stirring drill rod drive gear and an admixture pipeline drive gear, which are connected by a transmission gear.

2. The triaxial mixing pile drill rod and admixture pipeline full-drive standard joint structure according to claim 1, characterized in that, Three-axis stirring drill rod drive teeth are fixed on the three-axis stirring drill rods located on both sides, and admixture pipe drive teeth are fixed on the admixture pipes. Adjacent admixture pipe drive teeth and three-axis stirring drill rod drive teeth are connected by transmission gears.

3. The standard section structure of the three-axis mixing pile drill rod and admixture pipeline with full drive as described in claim 1, characterized in that, The transmission gear shaft is fitted with a transmission gear center shaft, and the upper and lower ends of the transmission gear center shaft are fixed to the upper and lower inner walls of the steel housing, respectively.

4. The standard section structure of the three-axis mixing pile drill rod and admixture pipeline with full drive as described in claim 1, characterized in that, The three-axis stirring drill rod and the admixture pipeline are arranged in a straight line, with the upper and lower ends of the three-axis stirring drill rod and the admixture pipeline at the same height.