Multifunctional combined drill bit for foundation engineering

Abstract

The utility model relates to the technical field of multifunctional combined drill bits, and discloses a multifunctional combined drill bit for foundation engineering, which comprises a drill cylinder, the front end of the drill cylinder is fixedly connected with a drill bit, the outer wall of the front end of the drill cylinder is provided with clamping grooves at equal intervals, and one side of the interior of each clamping groove is communicated with a limiting groove. A plurality of limiting holes are formed in the front side of the drilling barrel at equal intervals, buckles are slidably connected to the interiors of the multiple limiting grooves correspondingly, the outer walls of the multiple buckles are fixedly connected with the same connecting ring, a plurality of first limiting bolts are rotatably connected to the outer wall of the connecting ring at equal intervals, and reserved holes are formed in one sides of the multiple buckles correspondingly. A plurality of sliding grooves are formed in the front side of the connecting ring at equal intervals. According to the drill bit, the clamping buckle slides to the limiting groove in the clamping groove to fix the drill bit, the cutting knife is installed by inserting the sliding block and rotating the fixing bolt and the limiting ring, the cutting knife is installed and replaced, the drilling efficiency is improved, and the service life of the drill bit is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of multifunctional combined drill bit technology, and in particular to a multifunctional combined drill bit for foundation engineering. Background Technology

[0002] A multi-functional combination drill bit is a drill bit with multiple functions that has important uses in many scenarios. In some complex working environments, it is necessary to drill holes in different materials. When using a single-function drill bit, it is necessary to change the drill bit every time a different material is encountered. However, a multi-functional combination drill bit can adapt to a variety of materials, eliminating the need for frequent tool changes and saving a lot of time.

[0003] A search revealed Chinese patent publication number CN203531753U, which relates to a multifunctional combined drill bit. The water pipe connector is located at the rear end of the drill bit body; the drill head is located at the front end of the drill bit body; the front nozzle is located inside the drill head and is connected to a main channel located inside the drill bit body; side nozzles are located on the outer circumference of the drill bit body and are connected to secondary channels; a channel reversing device adjusts the water pressure to open or close a one-way baffle in the main channel, thereby controlling the connection or blockage between the secondary channel and the water pipe connector; a reamer is also included. Multiple drill bits are evenly distributed on the outer circumference of the drill bit body. This utility model allows for hole enlargement using a reamer during drilling. Additionally, high-pressure water jets from the front nozzles can flush away the soil drilled into the drill bit head during drilling. When drilling reaches the upper part of the enlarged head, the water pressure is increased, and a one-way baffle blocks the main channel. High-pressure water jets are then ejected through the side nozzles to enlarge the hole and form the enlarged head. However, in actual use, when encountering soil where high-pressure water jets cannot be used for flushing, the use of the drill bit is limited, requiring equipment replacement and increasing operating costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-functional combined drill bit for basic engineering, which aims to improve the problem of increased operating costs caused by the need to replace equipment when encountering soil that cannot be scourned with high-pressure water.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional combined drill bit for foundation engineering, comprising a drill barrel, a drill bit fixedly connected to the front end of the drill barrel, slots equidistantly formed on the outer wall of the front end of the drill barrel, one side of each of the slots being connected to a limiting groove, multiple limiting holes equidistantly formed on the front side of the drill barrel, buckles slidably connected inside each of the multiple limiting grooves, a common connecting ring fixedly connected to the outer wall of each of the multiple buckles, multiple limiting bolts rotatably connected to the outer wall of the connecting ring, a reserved hole on one side of each of the multiple buckles, multiple sliding grooves equidistantly formed on the front side of the connecting ring, sliding blocks slidably connected inside each of the multiple sliding grooves, a common ring fixedly connected to the front side of each of the multiple sliding blocks, a fixing bolt rotatably connected to the outer side of each of the multiple sliding blocks, a cutting blade fixedly connected to the front side of the ring, and an installation mechanism provided at the rear end of the drill barrel.

[0006] The above technical solution involves: firstly, inserting the rear end of the drill bit into the front end of the drill barrel to ensure close contact between the drill bit and the drill barrel; then, pushing the connecting ring forward along the outer wall of the front end of the drill barrel. At this time, the connecting ring causes multiple clips to slide within the slots. When the clips slide to the limiting slot position, the drill bit is fixed to the drill barrel. Next, by rotating the limiting bolt, it passes through the pre-drilled hole and is tightened, further enhancing the connection stability between the clips and the drill barrel. At this point, multiple sliding blocks are inserted into the sliding groove, and simultaneously, multiple fixing bolts are rotated. The fixing bolts pass through the ring and the corresponding sliding blocks in sequence, limiting the ring. The cutting blade is installed around the drill bit, and when the drill bit rotates, it drives the cutting blade to rotate, facilitating soil cutting. The cutting head can be replaced according to different soil types to improve drilling efficiency and drill bit lifespan.

[0007] As a further description of the above technical solution:

[0008] The installation mechanism includes a base, the front side of which is fixedly connected to the rear end of the drill barrel. Multiple movable slots are equidistantly provided on the rear side of the base. Movable blocks are slidably connected inside the multiple movable slots. Arcs are fixedly connected to the rear side of the multiple movable blocks. Limiting bolts are rotatably connected to one side of each of the multiple movable blocks. Threaded grooves are fixedly connected to the outer side of each of the multiple limiting bolts.

[0009] Through the above technical solution: when installing the drill bit onto the relevant equipment, firstly, place the connecting part of the equipment in the space formed by the arc. Then, according to the size of the connecting part, rotate the second limiting bolt. Since the second limiting bolt is rotatably connected to the moving block, when the second limiting bolt rotates, its outer thread groove interacts with the inner wall structure of the moving groove, causing the moving block to slide in the moving groove, thereby achieving precise adjustment of the inner diameter of the arc. When the inner diameter of the arc is adjusted to a suitable size, it fits tightly against the connecting part of the equipment, completing the connection between the installation mechanism and the equipment.

[0010] As a further description of the above technical solution:

[0011] Multiple fixing blocks are fixedly connected at equal intervals to the outer wall of the rear end of the drill barrel. Each fixing block is rotatably connected to a fixing bolt two at its front side. The rear ends of each fixing bolt two pass through the fixing block and are rotatably connected to the front side of the base.

[0012] The above technical solution can firmly fix the drill barrel and the base together, preventing loosening or relative displacement between the drill barrel and the base during drill bit operation.

[0013] As a further description of the above technical solution:

[0014] Each of the multiple movable slots has a sliding groove on both sides inside, and each of the multiple movable blocks has a slider fixedly connected to both sides. The multiple sliders are slidably connected inside the corresponding sliding grooves.

[0015] The above technical solution allows the slider to slide within the groove, ensuring that the moving block can only move in a predetermined direction, thus preventing the moving block from shifting or wobbling during movement.

[0016] As a further description of the above technical solution:

[0017] Each of the two limiting bolts has a washer slidably connected to its outer wall, and one side of each washer is in contact with the outer wall of the base.

[0018] Through the above technical solution: the gasket mainly serves to increase friction and provide protection. When the second limiting bolt is tightened, the gasket fits tightly against the outer wall of the base, increasing the friction between the second limiting bolt and the base.

[0019] As a further description of the above technical solution:

[0020] One end of each of the multiple limiting bolts passes through the connecting ring and is rotatably connected inside the reserved hole, and the size of the limiting bolt matches that of the reserved hole.

[0021] The above technical solution further fixes the position of the buckle. After the buckle fixes the drill bit to the drill barrel, tightening the limiting bolt one can make the buckle more firmly locked in the limiting groove, thus enhancing the stability of the connection between the drill bit and the drill barrel.

[0022] As a further description of the above technical solution:

[0023] One end of each of the multiple limiting bolts 2 passes through the corresponding moving groove, and one end of each of the multiple limiting bolts 2 rotates to the outside of the corresponding slider.

[0024] The above technical solution enables the limiting bolt two to effectively drive the slider, thereby moving the moving block.

[0025] As a further description of the above technical solution:

[0026] The threads of the plurality of threaded grooves are matched, and the plurality of threaded grooves are all threadedly connected to the external interface.

[0027] The above technical solution ensures that the threads between the threaded grooves are matched and all are connected to the external interface threads, making it easy for the installation mechanism to connect with other external equipment or components.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the connecting ring is pushed to drive the buckle to slide in the slot to the limiting groove to fix the drill bit. The limiting bolt is rotated to enhance the connection stability. The sliding block is inserted and the fixing bolt is rotated to install the limiting ring to install the cutting tool. This makes the drill bit and the drill barrel firmly connected and the cutting tool easy to install and flexibly replace, thereby improving drilling efficiency and drill bit service life.

[0030] 2. In this utility model, by placing the equipment connection part in the arc space, rotating the limiting bolt two according to the size of the connection part, and using its rotational connection relationship with the moving block, as well as the interaction between the threaded groove and the inner wall structure of the moving groove, the moving block is driven to slide in the moving groove. The precise adjustment of the inner diameter of the arc, and then after adjusting to the appropriate size, the arc is tightly fitted to the connection part, thus completing the connection between the installation mechanism and the equipment. Attached Figure Description

[0031] Figure 1 A perspective view of a multi-functional combined drill bit for basic engineering proposed in this utility model;

[0032] Figure 2 This utility model provides a structural breakdown diagram of a multifunctional combined drill bit for basic engineering applications.

[0033] Figure 3Rear view of the structure of a multifunctional combined drill bit for basic engineering proposed in this utility model;

[0034] Figure 4 A disassembled diagram of the connecting ring structure of a multifunctional combined drill bit for basic engineering proposed in this utility model;

[0035] Figure 5 This is a breakdown diagram of the drill barrel structure of a multifunctional combined drill bit for basic engineering proposed in this utility model.

[0036] Legend:

[0037] 1. Drill barrel; 2. Mounting mechanism; 201. Base; 202. Moving groove; 203. Moving block; 204. Arc; 205. Limiting bolt II; 206. Threaded groove; 3. Drill bit; 4. Slot; 5. Limiting groove; 6. Limiting hole; 7. Buckle; 8. Connecting ring; 9. Limiting bolt I; 10. Reserved hole; 11. Sliding groove; 12. Sliding block; 13. Circular ring; 14. Fixing bolt I; 15. Cutting tool; 16. Fixing block; 17. Fixing bolt II; 18. Sliding groove; 19. Sliding block; 20. Shim. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a multi-functional combined drill bit for foundation engineering, including a drill barrel 1. The drill barrel 1 serves as the main structure of the entire drill bit, providing a mounting base for other components. A drill bit 3 is fixedly connected to the front end of the drill barrel 1, and the drill bit 3 can directly cut and drill into the foundation material. The outer wall of the front end of the drill barrel 1 has evenly spaced slots 4 for accommodating latches 7 and providing them with sliding tracks. One side of each slot 4 is connected to a limiting groove 5, which allows the latches 7 to be locked in a specific position, thus enabling the drill bit 3 to... The drill barrel 1 has multiple equidistant limiting holes 6 on its front side. These limiting holes 6 may be used for other auxiliary positioning or connection operations. Each of the multiple limiting grooves 5 has a slidably connected buckle 7. The buckle 7 secures the drill bit 3 by sliding within the groove 4 and the limiting groove 5. The outer walls of each of the multiple buckles 7 are fixedly connected to the same connecting ring 8. The connecting ring 8 allows for convenient unified operation of the multiple buckles 7. The outer wall of the connecting ring 8 is equidistantly rotatably connected to multiple limiting bolts 9. These limiting bolts 9 further tighten the position of the buckles 7. Each side has a pre-drilled hole 10, which mates with a limiting bolt 9 to enhance the stability of the buckle 7. Multiple sliding grooves 11 are equidistantly spaced on the front side of the connecting ring 8, providing sliding space for the sliding block 12. Sliding blocks 12 are slidably connected inside the multiple sliding grooves 11, allowing them to move within the grooves. The front of each sliding block 12 is fixedly connected to the same ring 13, which drives related components to move in tandem. Fixing bolts 14 are rotatably connected to the outer sides of each sliding block 12. The fixing bolt 14 can lock the position of the sliding block 12. The cutting blade 15 is fixedly connected to the front side of the ring 13. The cutting blade 15 can assist the drill bit 3 in cutting operations. The rear end of the drill barrel 1 is provided with the mounting mechanism 2, which is used to connect the drill bit to other equipment. One end of each of the multiple limiting bolts 9 passes through the connecting ring 8 and is rotatably connected inside the reserved hole 10. The size of the limiting bolts 9 matches the size of the reserved hole 10. This matching can ensure that the limiting bolts 9 rotate accurately in the reserved hole 10 and play a fastening role.

[0040] Specifically, firstly, the rear end of the drill bit 3 is inserted into the front end of the drill barrel 1, ensuring close contact between the drill bit 3 and the drill barrel 1. Then, the connecting ring 8 is pushed forward along the outer wall of the front end of the drill barrel 1. At this time, the connecting ring 8 causes multiple clips 7 to slide within the slots 4. When the clips 7 slide to the position of the limiting slot 5, the drill bit 3 is fixed to the drill barrel 1. Next, by rotating the limiting bolt 9, it is passed through the pre-drilled hole 10 and tightened, further enhancing the connection stability between the clips 7 and the drill barrel 1. At this time, multiple sliding blocks 12 are inserted into the sliding groove 11, and simultaneously, multiple fixing bolts 14 are rotated to fix the screws. Bolt 14 passes through the ring 13 and the corresponding sliding block 12 in sequence, limiting the ring 13. The cutting head 15 is installed around the drill bit 3. When the drill bit 3 rotates, it drives the cutting head 15 to rotate, which facilitates the cutting of the soil and allows the drill bit 3 to drill in. The cutting head 15 can be replaced according to different soil types to improve drilling efficiency and the service life of the drill bit 3. The position of the buckle 7 is further fixed. After the buckle 7 fixes the drill bit 3 on the drill barrel 1, tightening the limiting bolt 9 can make the buckle 7 more firmly locked in the limiting groove 5, which enhances the stability of the connection between the drill bit 3 and the drill barrel 1.

[0041] Reference Figure 3 and Figure 5 The mounting mechanism 2 includes a base 201, which serves as the foundation of the mounting mechanism 2 and connects the drill barrel 1 to other components. The front of the base 201 is fixedly connected to the rear end of the drill barrel 1, achieving the initial connection between the drill barrel 1 and the mounting mechanism 2. Multiple movable slots 202 are equidistantly provided on the rear side of the base 201, providing sliding tracks and space for movable blocks 203. Movable blocks 203 are slidably connected inside the multiple movable slots 202, allowing them to move flexibly within the slots and adjust their positions. Arcs 204 are fixedly connected to the rear side of the multiple movable blocks 203, changing their inner diameter through the movement of the movable blocks 203 to accommodate different connection requirements. Limit bolts 202 are rotatably connected to one side of each of the multiple movable blocks 203. 5. The second limit bolt 205 can drive the movement of the moving block 203 by rotation. The outer sides of the multiple second limit bolts 205 are all fixedly connected with threaded grooves 206. The threads between the threaded grooves 206 match, so that the multiple second limit bolts 205 can work together when rotating. The multiple threaded grooves 206 are all threadedly connected to the external interface, which facilitates a stable threaded connection between the installation mechanism 2 and the external equipment. One end of the multiple second limit bolts 205 passes through the corresponding moving groove 202, so that the second limit bolts 205 can pass through the moving groove 202 to effectively operate the moving block 203. One end of the multiple second limit bolts 205 rotates to connect to the outer side of the corresponding slider 19. This connection method can ensure that the second limit bolts 205 can accurately drive the slider 19 and the moving block 203 connected to it to adjust the position.

[0042] Specifically, when installing the drill bit onto the relevant equipment, firstly, the connecting part of the equipment is placed in the space formed by the arc 204. Then, according to the size of the connecting part, the limiting bolt 205 is rotated. Since the limiting bolt 205 is rotatably connected to the moving block 203, when the limiting bolt 205 rotates, its outer thread groove 206 interacts with the inner wall structure of the moving groove 202, causing the moving block 203 to slide in the moving groove 202, thereby achieving precise adjustment of the inner diameter of the arc 204. When the inner diameter of the arc 204 is adjusted to a suitable size, it fits tightly against the connecting part of the equipment, completing the connection between the installation mechanism and the equipment. This allows the limiting bolt 205 to effectively drive the slider 19, thereby moving the moving block 203.

[0043] Reference Figure 1 , Figure 4 and Figure 5 Multiple fixing blocks 16 are equidistantly fixed to the outer wall of the rear end of the drill barrel 1. The fixing blocks 16 provide installation positions for the fixing bolts 17. The front sides of each fixing block 16 are rotatably connected to the fixing bolts 17, which can rotate around the fixing blocks 16 for subsequent connection operations. The rear ends of each fixing bolt 17 penetrate the fixing blocks 16 and are rotatably connected to the front side of the base 201. This connection through the fixing blocks 16 enhances the stability of the connection between the drill barrel 1 and the base 201. Multiple sliding grooves 202 have sliding channels 18 on both sides inside, providing a guide path for the sliding block 19. Both sides of each movable block 203 are fixedly connected to sliders 19. The sliders 19 are connected to the movable block 203 and can drive the movable block 203 to slide in the slide groove 18. Multiple sliders 19 are slidably connected inside the corresponding slide groove 18 to ensure that the movable block 203 does not deviate during movement. Multiple limit bolts 205 are slidably connected to the outer wall of each limit bolt 205. The shims 20 can slide on the limit bolts 205 to adjust their position. One side of each shim 20 is in contact with the outer wall of the base 201. After contact, it can increase friction and protect the outer wall of the base 201, preventing the limit bolts 205 from loosening and causing damage to the base 201.

[0044] Specifically, by tightening the fixing bolt 17, the drill barrel 1 and the base 201 can be firmly fixed together, preventing loosening or relative displacement between the drill barrel 1 and the base 201 during the operation of the drill bit. The slider 19 slides in the groove 18, so that the moving block 203 can only move in the predetermined direction, avoiding deviation or shaking of the moving block 203 during the movement. When the limiting bolt 205 is tightened, the washer 20 fits tightly against the outer wall of the base 201, increasing the friction between the limiting bolt 205 and the base 201, preventing the limiting bolt 205 from loosening due to vibration during operation.

[0045] Working principle: When using the multi-functional combination drill bit, first insert the rear end of the drill bit 3 into the front end of the drill barrel 1, making the drill bit 3 in close contact with the drill barrel 1. Then, push the connecting ring 8 forward along the outer wall of the front end of the drill barrel 1. At this time, the connecting ring 8 drives multiple clips 7 to slide in the slot 4. When the clips 7 slide to the position of the limiting slot 5, the drill bit 3 is fixed on the drill barrel 1. Next, by rotating the limiting bolt 9, it is made to pass through the reserved hole 10 and tightened, further enhancing the connection stability between the clips 7 and the drill barrel 1. At this time, multiple sliding blocks 12 are inserted into the sliding groove 11. At the same time, multiple fixing bolts 14 are rotated. The fixing bolts 14 pass through the ring 13 and the corresponding sliding block 12 in sequence, limiting the ring 13. The cutting tool 15 is installed around the drill bit 3. When the drill bit 3 rotates, it drives the cutting tool. The cutting head 15 rotates, facilitating the cutting of the soil and allowing the drill bit 3 to penetrate. The cutting head 15 can be replaced according to different soil types to improve drilling efficiency and extend the service life of the drill bit 3. When installing the drill bit onto the relevant equipment, the connecting part of the equipment is first placed in the space formed by the arc 204. Then, according to the size of the connecting part, the limiting bolt 205 is rotated. Since the limiting bolt 205 is rotatably connected to the moving block 203, when the limiting bolt 205 rotates, its outer thread groove 206 interacts with the inner wall structure of the moving groove 202, causing the moving block 203 to slide within the moving groove 202. This achieves precise adjustment of the inner diameter of the arc 204. Once the inner diameter of the arc 204 is adjusted to the appropriate size, it fits tightly against the connecting part of the equipment, completing the connection between the installation mechanism and the equipment.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multi-functional combined drill bit for foundation engineering, comprising a drill cylinder (1), characterized in that: The front end of the drill cylinder (1) is fixedly connected with a drill bit (3), equidistantly arranged on the outer wall of the front end of the drill cylinder (1) are clamping grooves (4), the interiors of a plurality of the clamping grooves (4) are communicated with limiting grooves (5) on one side, equidistantly arranged on the front side of the drill cylinder (1) are a plurality of limiting holes (6), the interiors of a plurality of the limiting grooves (5) are slidably connected with buckles (7), the outer walls of a plurality of the buckles (7) are fixedly connected with the same connecting ring (8), equidistantly arranged on the outer wall of the connecting ring (8) are a plurality of limiting bolts (9), one side of a plurality of the buckles (7) is provided with a reserved hole (10), equidistantly arranged on the front side of the connecting ring (8) are a plurality of sliding grooves (11), the interiors of a plurality of the sliding grooves (11) are slidably connected with sliding blocks (12), the front sides of a plurality of the sliding blocks (12) are fixedly connected with the same circular ring (13), the outer sides of a plurality of the sliding blocks (12) are rotatably connected with fixed bolts (14), the front side of the circular ring (13) is fixedly connected with a cutting tool (15), and the rear end of the drill cylinder (1) is provided with a mounting mechanism (2).

2. A multi-functional combined drill bit for foundation engineering according to claim 1, characterized in that: The mounting mechanism (2) comprises a base (201), the front side of the base (201) is fixedly connected with the rear end of the drill cylinder (1), equidistantly arranged on the rear side of the base (201) are a plurality of moving grooves (202), the interiors of a plurality of the moving grooves (202) are slidably connected with moving blocks (203), the rear sides of a plurality of the moving blocks (203) are fixedly connected with circular arcs (204), one side of a plurality of the moving blocks (203) is rotatably connected with limiting bolts (205), and the outer sides of a plurality of the limiting bolts (205) are fixedly connected with threaded grooves (206).

3. The multi-functional combined drill bit for foundation engineering according to claim 1, characterized in that: Equidistantly arranged on the outer wall of the rear end of the drill cylinder (1) are a plurality of fixed blocks (16), the front sides of a plurality of the fixed blocks (16) are rotatably connected with fixed bolts (17), and the rear ends of a plurality of the fixed bolts (17) penetrate through the fixed blocks (16) and are rotatably connected with the front side of the base (201).

4. The multi-functional combined drill bit for foundation engineering according to claim 2, characterized in that: The interiors of both sides of a plurality of the moving grooves (202) are provided with sliding grooves (18), the two sides of a plurality of the moving blocks (203) are fixedly connected with sliding blocks (19), and a plurality of the sliding blocks (19) are slidably connected in the interiors of corresponding sliding grooves (18) respectively.

5. The multi-functional combined drill bit for foundation engineering according to claim 2, characterized in that: The outer walls of a plurality of the limiting bolts (205) are slidably connected with gaskets (20), and one side of a plurality of the gaskets (20) is attached to the outer wall of the base (201).

6. The multi-functional combined drill bit for foundation engineering according to claim 1, characterized in that: One end of a plurality of the limiting bolts (9) penetrates through the connecting ring (8) and is rotatably connected in the interior of the reserved hole (10), and the limiting bolts (9) and the reserved hole (10) are matched in size.

7. The multi-functional combined drill bit for foundation engineering according to claim 2, characterized in that: One end of a plurality of the limiting bolts (205) penetrates through the corresponding moving grooves (202), and one end of a plurality of the limiting bolts (205) is rotatable to the outer side of the corresponding sliding block (19).

8. The multi-functional combined drill bit for foundation engineering according to claim 2, characterized in that: The threads between a plurality of the threaded grooves (206) are matched, and a plurality of the threaded grooves (206) are threadedly connected with external interfaces.

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