Drill tooth-shaped steel pipe
By designing a detachable drill bit-shaped steel pipe, the problem of easy damage to traditional drill barrels and drill bits was solved, enabling flexible adaptation to different soil and rock sampling needs, and improving sampling efficiency and sample quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN RONGGANG STEEL FABRICATION CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-15
Smart Images

Figure CN224244871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe technology, specifically to a drill-tooth shaped steel pipe. Background Technology
[0002] A rock and soil sampling drill bit is a tool used for sampling rocks and soil. It is typically made of steel and features a steel drill rod and drill bit. The drill bit is inserted into the ground by rotating and advancing, and then the sampler is filled with rock or soil samples by rotating and lifting the drill rod. Rock and soil sampling drill bits can be used for sampling in engineering exploration, geological surveys, environmental monitoring, and other fields. However, in the process of rock and soil sampling, the drill bit of traditional drill bits is often limited by its shape and material, and is easily damaged, requiring complete replacement when damaged, thus limiting its practicality. Utility Model Content
[0003] The purpose of this utility model is to provide a solution to the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a drill-tooth shaped steel pipe, comprising a drill-tooth shaped steel pipe body, the drill-tooth shaped steel pipe body comprising an inner pipe body and an outer drill-tooth shaped fixing assembly, the inner pipe body being a cylindrical steel pipe, the outer drill-tooth shaped fixing assembly being detachably installed on the inner pipe body, the outer drill-tooth shaped fixing assembly being provided in several groups, and each group of outer drill-tooth shaped fixing assemblies being evenly distributed in a circumferential shape on the inner pipe body, the outer drill-tooth shaped fixing assembly comprising a connecting reinforcement part and a drill tooth part, the drill tooth part being fixedly installed on the connecting reinforcement part, and a first fixing member and a second fixing member being fixedly installed at both ends of the drill-tooth shaped steel pipe body respectively.
[0005] Preferably, the outer side of the inner tube is provided with a drill tooth fixing groove, and there are several sets of drill tooth fixing grooves, with each set of drill tooth fixing grooves being evenly distributed in a circular shape on the inner tube.
[0006] Preferably, the external drill tooth fixing assembly is movably installed in the drill tooth fixing groove via a connecting reinforcement.
[0007] Preferably, a T-shaped connecting block is provided inside the drill tooth fixing groove, and a T-shaped groove that cooperates with the T-shaped connecting block is provided inside the connecting reinforcement part.
[0008] Preferably, the first and second fixing members are annular structures, and the first and second fixing members are fixedly installed at both ends of the inner tube by bolts. Both ends of the inner tube are provided with threaded fixing holes.
[0009] Preferably, several sets of drill teeth are fixedly arranged along the outside of the connecting reinforcement, and the drill teeth have a trapezoidal structure.
[0010] Preferably, the external drill tooth fixing assembly is located between the first fixing member and the second fixing member, and the two ends of the connecting reinforcement part are in contact with the first fixing member and the second fixing member, respectively.
[0011] Preferably, the diameters of the first and second fixing members are larger than the diameter of the inner tube.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The main body of the drill tooth-shaped steel pipe of this utility model consists of an inner pipe body and an outer drill tooth-shaped fixing component. The outer drill tooth-shaped fixing component is detachably installed on the inner pipe body. This design not only facilitates the replacement of worn drill teeth, but also makes the entire steel pipe more flexible and adaptable, and can meet the sampling needs of soil and rock of different hardness and type. At the same time, the drill tooth fixing groove and the T-shaped connecting block and T-shaped groove cooperation design on the inner pipe body further improve the stability and installation convenience of the outer drill tooth-shaped fixing component.
[0014] 2. The annular structure and bolt fixing method of the first and second fixing parts of this utility model ensure that both ends of the drill tooth-shaped steel pipe body are firmly and reliably fixed, avoiding the problems of loosening and falling off during use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the inner tube body and the outer drill tooth-shaped fixing assembly of this utility model;
[0017] Figure 3 This is a side view of the inner tube body and the outer drill tooth-shaped fixing component of this utility model;
[0018] Figure 4 This is a schematic diagram of the cross-section of the inner tube of this utility model;
[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0020] In the figure: 1. Drill tooth-shaped steel pipe body; 2. Inner pipe body; 3. Outer drill tooth-shaped fixing component; 4. Connecting reinforcement part; 5. Drill tooth part; 6. First fixing part; 7. Second fixing part; 8. Drill tooth fixing groove; 9. T-shaped connecting block; 10. T-shaped groove; 11. Threaded fixing hole. 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] Please see Figure 1-5 This utility model provides a technical solution for a drill-tooth shaped steel pipe: it includes a drill-tooth shaped steel pipe body 1, the drill-tooth shaped steel pipe body 1 includes an inner pipe body 2 and an outer drill-tooth shaped fixing component 3, the inner pipe body 2 is a cylindrical steel pipe, the outer drill-tooth shaped fixing component 3 is detachably installed on the inner pipe body 2, the outer drill-tooth shaped fixing component 3 is provided in several groups, and each group of outer drill-tooth shaped fixing components 3 is evenly distributed in a circumferential shape on the inner pipe body 2, the outer drill-tooth shaped fixing component 3 includes a connecting reinforcing part 4 and a drill-tooth part 5, the drill-tooth part 5 is fixedly installed on the connecting reinforcing part 4, and a first fixing member 6 and a second fixing member 7 are respectively fixedly installed at both ends of the drill-tooth shaped steel pipe body 1.
[0023] Furthermore, the outer side of the inner tube 2 is provided with a drill tooth fixing groove 8, and there are several sets of drill tooth fixing grooves 8, and each set of drill tooth fixing grooves 8 is evenly distributed in a circular shape on the inner tube 2.
[0024] Specifically, the external drill tooth fixing assembly 3 is movably installed in the drill tooth fixing groove 8 via the connecting reinforcement part 4.
[0025] In this embodiment, not only is it easy to replace the worn drill bit 5, but the entire steel pipe is also more flexible and adaptable, and can meet the sampling needs of soil and rock of different hardness and type.
[0026] Furthermore, a T-shaped connecting block 9 is provided inside the drill tooth fixing groove 8, and a T-shaped groove 10 that cooperates with the T-shaped connecting block 9 is provided inside the connecting reinforcement part 4.
[0027] In this embodiment, the design of the drill tooth fixing groove 8 and the T-shaped connecting block 9 and T-shaped groove 10 provided on the inner tube body 2 enables the outer drill tooth fixing component 3 to be stably installed on the inner tube body 2.
[0028] Furthermore, the first fixing member 6 and the second fixing member 7 are circular ring structures. The first fixing member 6 and the second fixing member 7 are fixedly installed at both ends of the inner tube body 2 by bolts. Both ends of the inner tube body 2 are provided with threaded fixing holes 11.
[0029] Specifically, the external drill tooth-shaped fixing component 3 is located between the first fixing member 6 and the second fixing member 7, and the two ends of the connecting reinforcement part 4 are in contact with the first fixing member 6 and the second fixing member 7 respectively. The diameter of the first fixing member 6 and the second fixing member 7 is larger than the diameter of the inner tube body 2.
[0030] In this embodiment, the annular structure of the first fixing member 6 and the bolt fixing method of the second fixing member 7 ensure that both ends of the drill tooth-shaped steel pipe body 1 are firmly and reliably fixed, avoiding the problem of loosening and falling off during use.
[0031] Furthermore, several sets of drill teeth 5 are fixedly arranged along the outside of the connecting reinforcement part 4, and the drill teeth 5 has a trapezoidal structure.
[0032] In this embodiment, the drill bit 5 has a trapezoidal structure, which enhances the cutting ability and makes the sampling process smoother.
[0033] Working Principle: In use, the two ends of the drill-tooth steel pipe body 1 are fixedly installed using the first fixing member 6 and the second fixing member 7. Then, the drill-tooth steel pipe body 1 is inserted into the ground by rotation and advancement. During rotation and advancement, the drill teeth 5 on the outer drill-tooth fixing component 3 cuts and samples the soil or rock. Because the drill teeth 5 have a trapezoidal structure, the cutting ability is enhanced, making the sampling process smoother and the sample quality higher. Simultaneously, the design of the drill tooth fixing groove 8, T-shaped connecting block 9, and T-shaped groove 10 on the inner pipe body 2 ensures that the outer drill-tooth fixing component 3 can be firmly installed on the inner pipe body 2 and is easy to disassemble and replace, improving the flexibility and applicability of the entire steel pipe. Furthermore, the annular structure of the first fixing member 6 and the bolt fixing method of the second fixing member 7 ensure that both ends of the drill-tooth steel pipe body 1 are firmly and reliably secured, avoiding loosening and detachment during use, further improving sampling efficiency and safety.
[0034] In summary, the drill-tooth shaped steel pipe of this utility model has the advantages of simple structure, convenient installation, high sampling efficiency, good sample quality, and long service life. It is widely used in rock and soil sampling work in engineering exploration, geological survey, environmental monitoring and other fields, and has significant economic and social benefits.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] 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 drill-tooth shaped steel pipe, comprising a drill-tooth shaped steel pipe body (1), characterized in that: The main body (1) of the drill-tooth steel pipe includes an inner tube (2) and an outer drill-tooth fixing assembly (3). The inner tube (2) is a cylindrical steel pipe. The outer drill-tooth fixing assembly (3) is detachably installed on the inner tube (2). The outer drill-tooth fixing assembly (3) is provided in several groups, and each group of outer drill-tooth fixing assemblies (3) is evenly distributed in a circular shape on the inner tube (2). The outer drill-tooth fixing assembly (3) includes a connecting reinforcement part (4) and a drill tooth part (5). The drill tooth part (5) is fixedly installed on the connecting reinforcement part (4). The two ends of the main body (1) of the drill-tooth steel pipe are respectively fixedly installed with a first fixing member (6) and a second fixing member (7).
2. The drill-tooth shaped steel pipe according to claim 1, characterized in that, The outer side of the inner tube (2) is provided with a drill tooth fixing groove (8), and there are several sets of drill tooth fixing grooves (8), and each set of drill tooth fixing grooves (8) is evenly distributed in a circular shape on the inner tube (2).
3. A drill-tooth shaped steel pipe according to claim 2, characterized in that, The external drill tooth fixing assembly (3) is movably installed in the drill tooth fixing groove (8) via the connecting reinforcement part (4).
4. A toothed steel pipe according to claim 3, characterized in that, The drill tooth fixing groove (8) is provided with a T-shaped connecting block (9) inside, and the connecting reinforcement part (4) is provided with a T-shaped groove (10) that cooperates with the T-shaped connecting block (9).
5. A toothed steel pipe according to claim 4, characterized in that, The first fixing member (6) and the second fixing member (7) are circular ring structures. The first fixing member (6) and the second fixing member (7) are fixedly installed at both ends of the inner tube body (2) by bolts. Both ends of the inner tube body (2) are provided with threaded fixing holes (11).
6. A drill-tooth shaped steel pipe according to claim 5, characterized in that, The drill teeth (5) are fixedly arranged in several groups along the outside of the connecting reinforcement (4), and the drill teeth (5) has a trapezoidal structure.
7. A toothed steel pipe according to claim 6, characterized in that, The external drill tooth-shaped fixing assembly (3) is located between the first fixing member (6) and the second fixing member (7), and the two ends of the connecting reinforcement part (4) are in contact with the first fixing member (6) and the second fixing member (7) respectively.
8. A drill-tooth shaped steel pipe according to claim 7, characterized in that, The diameters of the first fixing member (6) and the second fixing member (7) are larger than the diameter of the inner tube (2).