Stirring drill rod

Abstract

The utility model relates to the technical field of stirring drill rods, and discloses a stirring drill rod which comprises an external supporting rod, the inner side of the external supporting rod is connected with an internal supporting sliding rod in a sliding mode, the side face of the external supporting rod is provided with a side face stirring boss reset assembly, and the side face of the external supporting rod is provided with a side face stirring boss extending assembly. According to the side face stirring boss stretching-out assembly, the drilling speed is increased through the bottom flow dividing assembly, a soil body and cement paste are fully stirred through the side face stirring boss stretching-out assembly, the construction efficiency and the pile body quality are improved, meanwhile, the side face stirring boss stretching-out assembly is arranged on the outer side face of the outer supporting rod, and meanwhile, the side face stirring boss stretching-out assembly is arranged on the outer side face of the outer supporting rod. When the reset sliding assembly and the side face stirring boss reset assembly are not used, the side face stirring boss is folded, damage to the side face stirring boss is avoided, the service life of the stirring drill rod is prolonged, the maintenance cost is reduced, and continuous construction is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of stirring drill rod technology, specifically a stirring drill rod. Background Technology

[0002] Mixing drill rods are crucial in building pile foundation construction; however, existing mixing drill rods have many problems in practical use.

[0003] On the one hand, the complex construction environment poses a severe challenge to mixing drill rods. Geological conditions vary greatly across different regions; for example, some strata contain multiple types of soil, such as silty clay and medium sand, which ordinary mixing drill rods struggle to adapt to, easily leading to drilling and mixing difficulties, affecting pile quality. Simultaneously, variable weather conditions also impact the performance of mixing drill rods, increasing construction difficulty. On the other hand, with the development of the construction industry, the requirements for construction efficiency and quality are increasingly higher. The performance of traditional mixing drill rods can no longer meet these demands. Their slow mixing and drilling speeds lead to extended construction cycles and increased costs; their poor durability, susceptibility to wear and deformation, not only shorten their service life but also cause frequent malfunctions, affecting construction progress; and their insufficient compatibility with new construction equipment limits the improvement of overall construction results. Therefore, we propose a new type of mixing drill rod. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a stirring drill rod that solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] A stirring drill rod includes an external support rod, an internal support slide rod slidably connected to the inner side of the external support rod, a side stirring boss reset assembly and a side stirring boss extension assembly on the side of the external support rod, a bottom diversion assembly at the bottom of the external support rod, and a reset sliding assembly on the inner side of the external support rod.

[0009] Preferably, the external support rod has an internal sliding groove, the side of the external support rod has equidistantly distributed side sliding holes, the inner side of the side sliding holes has equidistantly distributed side rotating holes, the bottom of the external support rod has a side fixing groove, the inner side of the internal sliding groove has equidistantly distributed internal reset sliding grooves, and the bottom of the internal reset sliding groove has an internal spring mounting groove.

[0010] Preferably, the bottom diversion assembly includes a front guide head and a fixed connecting boss. The outer side of the front guide head is provided with equally spaced side diversion slots. The top of the front guide head is fixedly connected to a fixed connecting boss. The inner side of the side fixing slot is fixedly connected to a fixed connecting boss. The bottom of the external support rod is fixedly connected to the front guide head.

[0011] Preferably, the reset sliding assembly includes an internal support slide rod and a bottom support reset spring. The bottom support reset spring is fixedly connected to the inner side of the internal slide groove, and the other end of the bottom support reset spring is fixedly connected to the internal support slide rod. The internal support slide rod is slidably connected to the inner side of the internal slide groove, and the side of the internal support slide rod is fixedly connected to equidistantly distributed internal support bosses.

[0012] Preferably, the side stirring boss extension assembly includes a side stirring boss, an internal support boss, and a rotating support shaft. A side connecting hole is provided on one side of the side stirring boss. Equally spaced reset connecting bosses are fixedly connected to the side of the side stirring boss. A rotating support shaft is rotatably connected to the inner side of the side rotating hole. A rotating support shaft is rotatably connected to the inner side of the reset connecting boss. An internal support boss is slidably connected to the inner side of the side stirring boss.

[0013] Preferably, the side stirring boss reset assembly includes a reset spring and a reset connecting boss. The reset spring is fixedly connected to the inner side of the internal spring mounting groove, and the reset connecting boss is fixedly connected to the outer end of the reset spring. The reset connecting boss is slidably connected to the inner side of the internal reset slide groove.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] A stirring drill rod is provided, which has the following beneficial effects:

[0017] 1. Improved construction efficiency: The front guide head of the bottom diversion component has a side diversion groove, which can effectively disperse soil resistance during drilling, reduce friction during drilling, make it easier for the mixing drill rod to cut into the strata, speed up the drilling speed, thereby shortening the construction time of a single pile, improving the overall construction efficiency, and reducing project costs.

[0018] 2. Enhanced mixing effect: The side mixing boss extension component allows the side mixing boss to extend smoothly, expanding the mixing range during the mixing process. This enables more thorough mixing of the soil and cement slurry in the pile hole, resulting in a more uniform mixture. This helps improve the quality of the pile body and ensures the stability and bearing capacity of the pile foundation.

[0019] 3. Extended service life and convenient maintenance: The reset sliding component and the side mixing boss reset component work together to automatically retract the side mixing boss when the mixing drill rod is not in use, preventing it from being damaged by collisions during transportation and storage, thus extending the service life of the mixing drill rod. At the same time, this design also facilitates the maintenance and upkeep of the mixing drill rod, reduces maintenance costs and downtime, and ensures the continuity of construction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the side stirring boss reset assembly of a portion of the structure in this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the external support rod of a part of the structure in this utility model.

[0025] In the diagram: 1. External support rod; 2. Internal support slide rod; 3. Side stirring boss; 4. Front guide head; 5. Side diversion groove; 6. Internal slide groove; 7. Side sliding hole; 8. Side rotating hole; 9. Internal support boss; 10. Return spring; 11. Rotating support shaft; 12. Side connecting hole; 13. Bottom support return spring; 14. Fixed connection boss; 15. Return connection boss; 16. Side fixing groove; 17. Internal return slide groove; 18. Internal spring mounting groove. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A stirring drill rod includes an outer support rod 1, an inner support slide rod 2 slidably connected to the inner side of the outer support rod 1, a side stirring boss reset assembly and a side stirring boss extension assembly on the side of the outer support rod 1, a bottom diversion assembly at the bottom of the outer support rod 1, and a reset sliding assembly on the inner side of the outer support rod 1.

[0029] Furthermore, the outer support rod 1 has an internal sliding groove 6 inside, and the outer support rod 1 has equidistantly distributed side sliding holes 7 on its side. The side sliding holes 7 have equidistantly distributed side rotating holes 8 inside their respective sides. The outer support rod 1 has a side fixing groove 16 at its bottom. The inner side of the internal sliding groove 6 has equidistantly distributed internal reset sliding grooves 17, and the bottom of the internal reset sliding groove 17 has an internal spring mounting groove 18.

[0030] Furthermore, the bottom diversion assembly includes a front guide head 4 and a fixed connecting boss 14. The front guide head 4 has equidistantly distributed side diversion grooves 5 on its outer side. The top of the front guide head 4 is fixedly connected to the fixed connecting boss 14, and the inner side of the side fixing groove 16 is fixedly connected to the fixed connecting boss 14. The bottom of the external support rod 1 is fixedly connected to the front guide head 4. Through the action of the bottom diversion assembly, the drilling speed of the stirring drill rod is increased.

[0031] Furthermore, the reset sliding assembly includes an internal support slide rod 2 and a bottom support reset spring 13. The bottom support reset spring 13 is fixedly connected to the inner side of the internal slide groove 6, and the other end of the bottom support reset spring 13 is fixedly connected to the internal support slide rod 2. The internal support slide rod 2 is slidably connected to the inner side of the internal slide groove 6, and the side of the internal support slide rod 2 is fixedly connected to equidistantly distributed internal support bosses 9. Through the action of the reset sliding assembly, the stirring drill rod is reset when it is not in use, thereby retracting the side stirring bosses 3 through the action of the side stirring boss reset assembly to avoid damage.

[0032] Furthermore, the side stirring boss extension assembly includes a side stirring boss 3, an internal support boss 9, and a rotating support shaft 11. A side connecting hole 12 is provided on one side of the side stirring boss 3. Equally spaced reset connecting bosses 15 are fixedly connected to the side of the side stirring boss 3. The rotating support shaft 11 is rotatably connected to the inner side of the side rotating hole 8. The rotating support shaft 11 is rotatably connected to the inner side of the reset connecting boss 15. The internal support boss 9 is slidably connected to the inner side of the side stirring boss 3. Through the action of the side stirring boss extension assembly, the side stirring boss 3 is extended to facilitate the stirring work.

[0033] Furthermore, the side stirring boss reset assembly includes a reset spring 10 and a reset connecting boss 15. The reset spring 10 is fixedly connected to the inner side of the internal spring mounting groove 18, and the reset connecting boss 15 is fixedly connected to the outer end of the reset spring 10. The reset connecting boss 15 is slidably connected to the inner side of the internal reset slide groove 17. Through the action of the side stirring boss reset assembly, the side stirring boss 3 is retracted, thus avoiding damage to the external parts.

[0034] Structural Description:

[0035] External support rod 1: As the main support structure of the mixing drill rod, it has an internal sliding groove 6 to provide a sliding track for the internal support slide rod 2 to ensure its stable movement. It has equidistantly distributed side sliding holes 7 and side rotating holes 8 on the side for installing the side mixing boss 3 and allowing it to extend and rotate flexibly. The side fixing groove 16 at the bottom is used to fix the bottom flow-dividing component and enhance the structural stability of the bottom of the drill rod.

[0036] Internal support slide bar 2: It is slidably connected in the internal slide groove 6 of the external support rod 1. The side is fixed with equidistantly distributed internal support protrusions 9, which are connected to the bottom support return spring 13. During the mixing operation, it can overcome the spring force and slide down under the power of the pile driver, driving the internal support protrusions 9 to push the side mixing protrusions 3 to extend. After the operation is completed, it relies on the spring force to return to the original position and retract the side mixing protrusions 3.

[0037] Return spring 10: Installed in the internal spring mounting groove 18, one end is fixed to the bottom of the groove, and the other end is connected to the return connecting boss 15. The return spring 10 is elastic and is stretched when the side stirring boss 3 extends, storing elastic potential energy. When the side stirring boss 3 needs to be reset, the return spring 10 releases the elastic potential energy, pulls the return connecting boss 15, and causes the side stirring boss 3 to rotate around the rotating support shaft 11 and retract into the side sliding hole 7.

[0038] Reset connecting boss 15: It is fixed on the side of the side stirring boss 3, connected to the reset spring 10, and slides in the internal reset slide groove 17. It is the connecting part between the reset spring 10 and the side stirring boss 3, and transmits the tension of the reset spring 10 to the side stirring boss 3 to realize the reset action of the side stirring boss 3.

[0039] Side stirring boss 3: A side connecting hole 12 is provided on one side, which is slidably connected to the internal support boss 9. It slides under the push of the internal support boss 9 through the side connecting hole 12. A reset connecting boss 15 is fixed on the side of the side stirring boss 3, which is used to connect with the reset spring 10 and to rotate and connect with the rotating support shaft 11, so as to realize the functions of extending, stirring and resetting the stirring boss.

[0040] Rotary support shaft 11: Installed in the side rotating hole 8, and rotatably connected to the inner side of the reset connecting boss 15. It provides a rotation center for the side stirring boss 3, so that the side stirring boss 3 can rotate flexibly around it during the extension and retraction process, ensuring the smooth progress of the stirring operation and the normal storage of the side stirring boss 3.

[0041] Front guide head 4: The outer side is provided with equally spaced side diversion grooves 5. These diversion grooves 5 are specially designed in shape and angle. During the drilling process, they can effectively divert the soil to both sides, reduce the resistance of the soil to the drill rod, reduce the friction during drilling, make it easier for the mixing drill rod to cut into the formation, and increase the drilling speed.

[0042] Fixed connection boss 14: Located at the top of the front guide head 4, it is tightly fixed to the side fixing groove 16 at the bottom of the external support rod 1 by welding, bolt connection or other means. It firmly connects the front guide head 4 to the external support rod 1, ensuring the stability of the bottom diversion assembly during operation, so that it can continuously and effectively play the diversion role.

[0043] Internal support slide bar 2: As part of the reset sliding assembly, it is connected to the bottom support reset spring 13 and slides up and down under the action of the spring. During the stirring operation, the internal support slide bar 2 slides down to push the side stirring boss 3 out; after the operation is completed, it slides up to reset by the elastic force of the bottom support reset spring 13, which drives the side stirring boss 3 to retract and completes the reset action of the stirring drill rod.

[0044] Bottom support reset spring 13: One end is fixed inside the inner slide groove 6, and the other end is connected to the inner support slide rod 2. During the operation of the stirring drill rod, the spring is compressed or stretched to store elastic potential energy. When the external force disappears, the spring releases the elastic potential energy to provide an upward reset force for the inner support slide rod 2. It is the core component for realizing the reset function of the stirring drill rod.

[0045] Working principle: When this utility model is needed, the mixing drill rod is connected to the pile driver and begins to work. The front guide head 4 of the bottom diversion component, with its outer side diversion groove 5, disperses soil resistance and reduces friction when it contacts the stratum, allowing the mixing drill rod to cut into the stratum more easily and accelerating the drilling speed. As the drill rod goes deeper, the outer support rod 1 gradually enters the soil layer. When mixing is required, the inner support slide rod 2, under the power of the pile driver, overcomes the elastic force of the bottom support return spring 13 and slides downward along the inner slide groove 6. The inner support boss 9 on the side of the inner support slide rod 2 moves downward accordingly, pushing the side mixing boss 3. The side mixing boss 3 is connected to the inner support through the side connecting hole 12. The side mixing boss 3 slides on the boss 9 and rotates around the rotating support shaft 11, extending out from the side sliding hole 7. At this time, the side mixing boss 3 can fully mix the soil and cement slurry in the pile hole, expand the mixing range, make the two mix more evenly, and improve the quality of the pile body. After the mixing is completed, the external force applied to the internal support slide rod 2 is stopped. The elastic force of the bottom support return spring 13 causes the internal support slide rod 2 to slide upward and return to its original position. The internal support boss 9 drives the side mixing boss 3 to move upward. At the same time, the elastic force of the return spring 10 pushes the return connecting boss 15, so that the side mixing boss 3 rotates around the rotating support shaft 11 and retracts into the side sliding hole 7 to avoid collision damage during transportation and storage, and to facilitate the next use.

[0046] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirring drill rod, comprising an external support rod (1), characterized in that: The inner side of the external support rod (1) is slidably connected to the internal support slide rod (2). The side of the external support rod (1) is provided with a side stirring boss reset assembly. The side of the external support rod (1) is provided with a side stirring boss extension assembly. The bottom of the external support rod (1) is provided with a bottom diversion assembly. The inner side of the external support rod (1) is provided with a reset sliding assembly.

2. The stirring drill rod according to claim 1, characterized in that: The external support rod (1) has an internal sliding groove (6) inside, and the side of the external support rod (1) has equidistantly distributed side sliding holes (7). The side sliding holes (7) have equidistantly distributed side rotating holes (8) inside. The bottom of the external support rod (1) has a side fixing groove (16). The inside of the internal sliding groove (6) has equidistantly distributed internal reset sliding grooves (17). The bottom of the internal reset sliding groove (17) has an internal spring mounting groove (18).

3. A stirring drill rod according to claim 2, characterized in that: The bottom diversion assembly includes a front guide head (4) and a fixed connecting boss (14). The front guide head (4) has equidistantly distributed side diversion slots (5) on its outer side. The front guide head (4) is fixedly connected to the top of the front guide head (4). The fixed connecting boss (14) is fixedly connected to the inner side of the side fixing slot (16). The front guide head (4) is fixedly connected to the bottom of the external support rod (1).

4. A stirring drill rod according to claim 2, characterized in that: The reset sliding assembly includes an internal support slide rod (2) and a bottom support reset spring (13). The bottom support reset spring (13) is fixedly connected to the inner side of the internal slide groove (6). The other end of the bottom support reset spring (13) is fixedly connected to the internal support slide rod (2). The internal support slide rod (2) is slidably connected to the inner side of the internal slide groove (6). The side of the internal support slide rod (2) is fixedly connected to equidistantly distributed internal support bosses (9).

5. A stirring drill rod according to claim 4, characterized in that: The side stirring boss extension assembly includes a side stirring boss (3), an internal support boss (9), and a rotating support shaft (11). A side connecting hole (12) is provided on one side of the side stirring boss (3). Equally spaced reset connecting bosses (15) are fixedly connected to the side of the side stirring boss (3). The rotating support shaft (11) is rotatably connected to the inner side of the side rotating hole (8). The rotating support shaft (11) is rotatably connected to the inner side of the reset connecting boss (15). The internal support boss (9) is slidably connected to the inner side of the side stirring boss (3).

6. A stirring drill rod according to claim 5, characterized in that: The side stirring boss reset assembly includes a reset spring (10) and a reset connecting boss (15). The reset spring (10) is fixedly connected to the inner side of the internal spring mounting groove (18), and the reset connecting boss (15) is fixedly connected to the outer end of the reset spring (10). The reset connecting boss (15) is slidably connected to the inner side of the internal reset slide groove (17).

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