Drill bit with chipping collecting function

Abstract

The invention relates to the technical field of drill bits, in particular to a drill bit with a scrap collecting function, which comprises a drill bit body, a rotating structure and a fixing structure, the drill bit body is rotatably sleeved with a guide pipe through the rotating structure, and the axial end face of the guide pipe is fixedly connected with a telescopic cover; the guide pipe and the telescopic cover can cover the drill bit body, a dust collection bottle is detachably connected to the guide pipe through a fixing structure, a dust outlet communicated with an inner cavity of the dust collection bottle is formed in the inner wall face of the guide pipe, and the inner wall face of the guide pipe is obliquely arranged and used for guiding chippings generated during drilling to the dust outlet. The inner wall of the guide pipe is obliquely designed and is communicated with the dust collection bottle, and chippings can be naturally guided to the dust outlet and collected in the dust collection bottle by means of airflow or gravity during drilling, so that the working environment is improved, the cleaning burden is reduced, and the use safety and convenience are improved.

Description

Technical Field

[0001] This application relates to the field of drill bits, and more particularly to a drill bit with a function of collecting cuttings. Background Technology

[0002] Drill bits are used in electric drills to drill holes in materials such as wood, metal, plastic, brick walls, etc. by rotating them.

[0003] When a drill bit drills, it produces debris on the object being drilled. This debris can fly everywhere and be easily inhaled by the user, posing a health hazard. Furthermore, the debris is difficult to clean up and requires considerable manpower. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a drill bit with a debris collection function, capable of collecting debris generated during drilling.

[0005] This application provides a drill bit with a debris collection function, which adopts the following technical solution: A drill bit with a debris collection function includes a drill bit body, a rotating structure, and a fixed structure. A guide tube is rotatably mounted on the drill bit body via the rotating structure. A telescopic cover is fixedly connected to the axial end face of the guide tube. The guide tube and the telescopic cover can cover the drill bit body. A dust collection bottle is detachably connected to the guide tube via the fixed structure. A dust outlet is formed on the inner wall of the guide tube, communicating with the inner cavity of the dust collection bottle. The inner wall of the guide tube is inclined to guide the debris generated during drilling to the dust outlet.

[0006] By adopting the above technical solution, a guide tube and a telescopic cover are installed on the drill bit body, which can effectively cover the drill bit working area and prevent debris from splashing during drilling. The telescopic cover can extend and retract to adapt to the changes in the distance between the drill bit seat and the surface of the drilled object as the drill bit gradually inserts into the drilled object during drilling. The inclined inner wall of the guide tube is designed to connect with the dust collection bottle, which can use the airflow or gravity during drilling to naturally guide the debris to the dust outlet and collect it in the dust collection bottle, thereby improving the working environment, reducing the cleaning burden, and improving the safety and convenience of use. In addition, the dust collection bottle can be detachably connected to the guide tube, making it easy to remove the dust collection bottle for cleaning.

[0007] Optionally, the fixing structure includes a locking block and a slot for inserting the locking block, wherein the locking block is disposed on the dust collection bottle and the slot is opened on the guide tube; or the locking block is disposed on the guide tube and the slot is opened on the dust collection bottle.

[0008] By adopting the above technical solution, compared with bolt connection, the use of the combination of the card block and the card slot to achieve detachable connection between the dust collection bottle and the guide tube is not only simple in structure and easy to assemble, but also makes it easy for users to quickly disassemble, clean or replace the dust collection bottle, thus enhancing the practicality and maintenance convenience of the product.

[0009] Optionally, it also includes a fixing plate on the outer peripheral surface of the guide tube, the slot is formed on the fixing plate, the block can slide along the axial direction of the guide tube on the dust collection bottle, the fixing structure also includes a limiting groove and a limiting block on the dust collection bottle, the outer peripheral surface of the guide tube is provided with a limiting member, the limiting member includes a limiting part, the limiting groove is formed on the limiting part, the fixing plate and the limiting member are arranged along the axial direction of the guide tube, when the dust collection bottle is in the dust collection state, the block is inserted into the slot, and the limiting block is inserted into the limiting groove.

[0010] By adopting the above technical solution, a fixing plate, a limiting block, and a limiting groove are added to the existing locking block and locking groove. In the actual installation process, the limiting block can be inserted into the limiting groove first, and then the locking block can be slid to insert into the locking groove. This allows the dust collection bottle to be stably installed through multiple positioning methods in the dust collection state, effectively preventing loosening or falling off due to vibration during operation, and improving the reliability and stability of the dust collection component. The locking block is slidably set on the dust collection bottle, which can solve the interference problem caused by fixing both sides of the dust collection bottle.

[0011] Optionally, the dust outlet is for the mouth of the dust collection bottle to be inserted, the limiting member is rotatably disposed on the outer circumferential surface of the guide tube around the central axis of the guide tube, the limiting groove is opened on one of the two surfaces of the limiting part arranged radially along the guide tube, and the limiting groove penetrates the two surfaces of the limiting part arranged axially along the guide tube.

[0012] By adopting the above technical solution, when installing the dust collection bottle, the bottle opening is first inserted into the dust outlet for initial positioning, then the locking block is slid into the insertion slot, and finally the positioning component is rotated until the positioning block is inserted into the positioning slot, thereby completing the fixing of the dust collection bottle. The positioning component is designed to rotate around the axis of the guide tube, and the opening direction and penetration form of the positioning slot are limited, which facilitates the quick alignment and locking of the dust collection bottle by rotating the positioning component during installation, improving the flexibility and efficiency of assembly. Inserting the bottle opening into the dust outlet can limit the position of the dust collection bottle and improve the ability to receive debris, preventing debris leakage.

[0013] Optionally, the fixing structure further includes a slot on the fixing plate, wherein when the dust collection bottle is in the storage state, the bottle mouth of the dust collection bottle is inserted into the limiting slot and the bottom of the dust collection bottle is inserted into the slot.

[0014] By adopting the above technical solution, when the dust collection bottle is not in use, it can be removed for cleaning. Then, the dust collection bottle can be laid horizontally so that the bottle mouth is inserted into the limiting groove and the bottle bottom is inserted into the slot, thus fixing the dust collection bottle in a stored state on the guide tube. The slot is provided so that when the dust collection bottle is not in use, the bottle mouth can be inserted into the limiting groove and the bottle bottom can be used to cooperate with the slot to achieve storage and fixation. This not only saves space but also prevents the dust collection bottle from being lost or damaged, improving the overall integrity and portability of the product.

[0015] Optionally, the limiting member can slide along the axial direction of the guide tube, and a connecting ear is rotatably provided on the outer circumferential surface of the guide tube. The rotation axis of the connecting ear extends radially along the guide tube. The connecting ear includes a rotating end and a connecting end. The rotation axis of the connecting ear is located on the rotating end, and a connecting hole is provided on the connecting end. When the dust collection bottle is in the dust collection state, the connecting ear rotates until the connecting end is located on the side of the rotating end away from the limiting member. The connecting ear is used for fixed connection with the electric drill base. The limiting member slides to abut against the rotating end. When the dust collection bottle is in the storage state, the connecting ear rotates until the connecting end is located on the side of the rotating end close to the limiting member. The limiting member slides to abut against the connecting end.

[0016] By adopting the above technical solution, when the dust collection bottle is in the dust collection state, the connecting ear rotates to the side of the rotating end away from the limiting member. The connecting ear is fixedly connected to the drill base through the bolt assembly and connecting hole. The limiting member slides to abut against the rotating end. When the dust collection bottle is in the storage state, the connecting ear rotates to the side of the rotating end close to the limiting member. The limiting member slides to abut against the connecting end. Through the combined design of the sliding limiting member and the rotating connecting ear, the dust collection bottle can be stably fixed in different states (dust collection and storage) by adjusting the position of the connecting ear and the limiting member, which enhances the adaptability and multifunctionality of the structure.

[0017] Optionally, a sleeve is rotatably provided on the dust collection bottle, the rotation axis of the sleeve extends radially along the dust collection bottle, the locking block is slidably disposed in the inner cavity of the sleeve, and a storage groove is provided on the outer circumferential surface of the guide tube. When the dust collection bottle is in the storage state, the sleeve rotates until its central axis is parallel to the central axis of the dust collection bottle, and the sleeve is inserted into the storage groove.

[0018] By adopting the above technical solution, a rotatable sleeve and storage slot are set up so that the sleeve can be rotated to be parallel to the bottle body and embedded in the storage slot when the dust collection bottle is stored, which effectively reduces the overall volume, makes it easy to store and carry, and maintains a compact structure.

[0019] Optionally, an elastic element is provided between the locking block and the sleeve to allow the locking block to slide to the end of the sleeve's inner cavity.

[0020] By adopting the above technical solution, an elastic element is set between the locking block and the sleeve, so that the locking block extends automatically in its natural state, which facilitates quick engagement with the slot, improves the convenience of assembly and the reliability of connection, and avoids the problem of not locking due to human negligence.

[0021] Optionally, the distance between the end face of the limiting block away from the dust collection bottle and the outer surface of the dust collection bottle is equal to the distance between the end face of the fixing plate away from the guide tube and the outer peripheral surface of the guide tube.

[0022] By adopting the above technical solution, the distance between the end face of the limiting block and the outer surface of the dust collection bottle is limited to the distance between the end face of the fixed plate and the outer circumference of the guide tube. This ensures that when the dust collection bottle is in the storage state, the fixed plate and the limiting block together support the guide tube, preventing the guide tube from rolling randomly on the placement surface.

[0023] Optionally, the limiting member includes a sleeve portion fixedly connected to the limiting part, the sleeve portion being slidably sleeved on the outer peripheral surface of the guide tube, and a cleaning sponge being provided on the inner wall of the sleeve portion.

[0024] By adopting the above technical solution, a cleaning sponge is installed on the inner wall of the assembly, which can automatically clean the outer surface of the limiting component as it slides along the guide tube, preventing the accumulation of dust or debris from affecting the smoothness of sliding and maintaining the reliability and ease of maintenance of the structure for long-term use.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The guide tube has an inclined inner wall design and is connected to the dust collection bottle. It can use the airflow or gravity during drilling to naturally guide the debris to the dust outlet and collect it in the dust collection bottle, thereby improving the working environment, reducing the cleaning burden, and improving the safety and convenience of use. 2. The design of the combination of sliding limiting parts and rotating connecting ears allows the dust collection bottle to be stably fixed in different states (dust collection and storage) by adjusting the position of the connecting ears and limiting parts, which enhances the adaptability and versatility of the structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the dust collection bottle in the dust collection state of this application.

[0027] Figure 2 yes Figure 1 A cross-sectional view along the axial direction of the guide tube.

[0028] Figure 3 This is a structural diagram of the dust collection bottle in its stored state.

[0029] Explanation of reference numerals in the attached drawings: 1. Drill bit body; 2. Rotating structure; 21. Annular protrusion; 22. Annular groove; 3. Fixing structure; 31. Locking block; 32. Locking groove; 33. Limiting groove; 34. Limiting block; 35. Slot; 4. Guide tube; 41. Dust outlet; 42. Storage slot; 5. Telescopic cover; 6. Dust collection bottle; 7. Fixing plate; 8. Limiting component; 81. Limiting part; 82. Fitting part; 9. Connecting ear; 91. Rotating end; 92. Connecting end; 921. Connecting hole; 100. Sleeve; 110. Elastic component. Detailed Implementation

[0030] The following combination Figures 1-3 This application will be described in further detail.

[0031] This application discloses a drill bit with a debris collection function. (Refer to...) Figure 1 and Figure 2 A drill bit with a debris collection function includes a drill bit body 1, a rotating structure 2, a fixing structure 3, a guide tube 4, a telescopic cover 5, and a dust collection bottle 6. The guide tube 4 is rotatably connected to the drill bit body 1 via the rotating structure 2. The telescopic cover 5 is fixedly connected to the axial end face of the guide tube 4 away from the drill bit body 1. The guide tube 4 and the telescopic cover 5 can cover the drill bit body 1. The dust collection bottle 6 is detachably connected to the guide tube 4 via the fixing structure 3. A dust outlet 41, communicating with the inner cavity of the dust collection bottle 6, is opened on the inner wall of the guide tube 4. The inner wall of the guide tube 4 is inclined to guide the debris generated during drilling to the dust outlet 41. This structural design effectively covers the working area of ​​the drill bit body 1, preventing debris from splashing during drilling. It also allows the airflow or gravity during drilling to naturally guide the debris to the dust outlet 41 and collect it in the dust collection bottle 6, thereby improving the working environment, reducing cleaning burden, enhancing safety and convenience, and facilitating the removal and cleaning of the dust collection bottle 6.

[0032] Reference Figure 1 The drill bit body 1 is usually a straight shank drill bit with a cylindrical shank for easy clamping by the drill chuck. The drill bit body 1 is mostly made of high-speed steel or carbon steel.

[0033] Reference Figure 1 and Figure 2The telescopic cover 5 is generally made of elastic materials, such as rubber or silicone, possessing good elasticity and flexibility. It can adopt a corrugated tube structure, extending and retracting as the drill bit body 1 is inserted during drilling, adapting to changes in the distance between the drill bit and the surface of the object being drilled. One end of the telescopic cover 5 is fixedly connected to the axial end face of the guide tube 4 by glue or clips, while the other end can fit tightly against the surface of the object being drilled during use, preventing debris from splashing out from the side. In actual use, the telescopic cover 5 is compressed, and the air pressure inside the telescopic cover 5, carrying dust and debris, is discharged through the guide tube 4 and the dust outlet 41 into the dust collection bottle 6.

[0034] Reference Figure 2 The guide tube 4 is typically made of metal or high-strength plastic, possessing a certain strength and wear resistance. Its inner wall is inclined, meaning the size of the inner opening of the guide tube 4 increases in the direction away from the telescopic cover 5. This design utilizes gravity and the airflow generated during drilling to naturally guide debris to the dust outlet 41. The dust outlet 41 is located on the inner wall of the tube and communicates with the inner cavity of the dust collection bottle 6, used to discharge debris into the dust collection bottle 6.

[0035] Reference Figure 1 A connecting ear 9 is rotatably mounted on the outer circumferential surface of the guide tube 4, and the axis of rotation of the connecting ear 9 extends radially along the guide tube 4. There are two connecting ears 9, which are symmetrically distributed on both sides of the radial direction of the guide tube 4. The connecting ear 9 includes a rotating end 91 and a connecting end 92. The axis of rotation of the connecting ear 9 is located on the rotating end 91, and a connecting hole 921 is provided on the connecting end 92. When the dust collection bottle 6 is in the dust collection state, the connecting ear 9 can rotate to the side of the connecting end 92 away from the limiting member 8 on the rotating end 91. The connecting ear 9 is fixedly connected to the electric drill base by bolt assembly and connecting hole 921.

[0036] Reference Figure 2 The rotating structure 2 includes an annular protrusion 21 integrally formed on the circumferential sidewall of the drill bit body 1 and an annular groove 22 formed on the inner wall of the guide tube 4 for the annular protrusion 21 to be inserted, thereby enabling the guide tube 4 to rotate relative to the drill bit body 1. In this embodiment, the guide tube 4 is set as two independent tube bodies (not shown in the figure), and the two tube bodies are detachably connected by bolts, so that the annular protrusion 21 can be inserted into the annular groove 22, and the guide tube 4 can also be removed from the drill bit body 1.

[0037] Reference Figure 2The dust collection bottle 6 is typically made of transparent plastic to allow users to easily observe the debris collection process. Its shape can be cylindrical, square, etc.; in this embodiment, the dust collection bottle 6 is cylindrical. The opening of the dust collection bottle 6 is smaller than the body, and the opening can be inserted into the dust outlet 41. In other embodiments, the opening of the dust collection bottle 6 may not be inserted into the dust outlet 41.

[0038] Reference Figure 2 The fixing structure 3 includes a locking block 31 and a locking groove 32. The dust collection bottle 6 and the guide tube 4 are detachably connected by the engagement of the locking block 31 and the locking groove 32. Compared with bolt connection, this method is simple in structure and convenient to assemble. In other embodiments, the dust collection bottle 6 can be detachably connected to the guide tube 4 by bolt assembly.

[0039] Reference Figure 1 and Figure 2 A sleeve 100 is rotatably mounted on the outer surface of the dust collection bottle 6, and the rotation axis of the sleeve 100 extends radially along the dust collection bottle 6. A locking block 31 is slidably mounted in the inner cavity of the sleeve 100 along its axial direction. An elastic element 110, which is a compression spring, connects the locking block 31 to the inner wall of the sleeve 100. This elastic element pushes the locking block 31 to slide until its end extends out of the sleeve 100, allowing the locking block 31 to automatically extend in its natural state for quick engagement with the locking slot 32. In other embodiments, the elastic element 110 can also be a tension spring.

[0040] Reference Figure 1 and Figure 2 A fixing plate 7 is fixedly connected to the outer circumferential surface of the guide tube 4, and a slot 32 is formed on the fixing plate 7. The fixing plate 7 can be connected to the guide tube 4 by welding or integral molding. Its function is to provide a position for the slot 32 to facilitate the connection between the dust collection bottle 6 and the guide tube 4.

[0041] In other embodiments, the locking block 31 in the fixing structure 3 is disposed on the guide tube 4, and the locking groove 32 is formed on the dust collection bottle 6. This also enables a detachable connection between the dust collection bottle 6 and the guide tube 4, and the structure is simple and easy to assemble, allowing users to quickly disassemble, clean or replace the dust collection bottle 6, thus enhancing the practicality and maintenance convenience of the product.

[0042] Reference Figure 1The fixing structure 3 also includes a limiting groove 33 and a limiting block 34 that can be inserted into the limiting groove 33. The limiting block 34 is cylindrical. The limiting block 34 is fixedly connected to the outer peripheral surface of the dust collection bottle 6 by welding or integral molding. A limiting member 8 is rotatably mounted on the guide tube 4, and the rotation axis of the limiting member 8 extends along the axial direction of the guide tube 4. The limiting member 8 includes a limiting part 81, and a limiting groove 33 is formed on the limiting part 81. The limiting groove 33 is formed on one of the two surfaces of the limiting part 81 arranged radially along the guide tube 4, and the limiting groove 33 penetrates both surfaces of the limiting part 81 arranged axially along the guide tube 4. The limiting groove 33 is an arc-shaped groove, so that the rotation path of the limiting groove 33 and the limiting block 34 relative to the limiting member 8 is matched, preventing interference between the limiting member 8 and the limiting block 34 when rotating. In other embodiments, the limiting groove 33 can also be a strip groove, in which case the size of the limiting groove 33 is slightly larger than the size of the limiting block 34.

[0043] Reference Figure 1 The limiting member 8 also includes a sleeve portion 82, which is sleeved on the outer peripheral surface of the guide tube 4 and can slide along the axial direction of the guide tube 4. The sleeve portion 82 can abut against the rotating end 91 of the connecting ear 9.

[0044] When the drill bit body 1 is working, the mouth of the dust collection bottle 6 is inserted into the dust outlet 41 to limit the dust collection bottle 6 in the radial direction. Then, the locking block 31 is inserted into the locking groove 32, and the limiting member 8 is slid until the sleeve part 82 abuts against the rotating end 91 of the connecting ear 9. The limiting member 8 is rotated until the limiting block 34 is inserted into the limiting groove 33 to limit the dust collection bottle 6 in the axial direction and prevent the dust collection bottle 6 from rotating around the central axis, thereby fixing the dust collection bottle 6 relatively on the guide tube 4 and keeping the dust collection bottle 6 in the dust collection state.

[0045] Reference Figure 1 and Figure 3 The fixing plate 7 is also provided with a slot 35 for the bottom of the dust collection bottle 6 to be inserted, and the slot 32 is provided on the bottom wall of the slot 35.

[0046] Reference Figure 2 and Figure 3 The outer circumferential surface of the guide tube 4 is also provided with a storage groove 42 for the sleeve 100 to be inserted.

[0047] When the drill bit body 1 is not working, remove the dust collection bottle 6 for cleaning. After cleaning, rotate the sleeve 100 until its central axis is parallel to the central axis of the dust collection bottle 6, press the locking block 31 back into the sleeve 100, insert the sleeve 100 into the storage groove 42, insert the bottom of the dust collection bottle 6 into the slot 35, slide the limiting member 8 towards the telescopic cover 5, and rotate the connecting ear 9 180° so that the connecting end 92 of the connecting ear 9 abuts against the fitting part 82 of the limiting member 8. Rotate the limiting member 8 until the mouth of the dust collection bottle 6 is inserted into the limiting groove 33, thereby fixing the dust collection bottle 6 relatively on the guide tube 4, so that the dust collection bottle 6 is kept in the storage state.

[0048] Reference Figure 3 The distance between the end face of the limiting block 34 away from the dust collection bottle 6 and the outer surface of the dust collection bottle 6 is equal to the distance between the end face of the fixing plate 7 away from the guide tube 4 and the outer peripheral surface of the guide tube 4. In this way, when the dust collection bottle 6 is in the storage state, the fixing plate 7 and the limiting block 34 together support the guide tube 4.

[0049] Reference Figure 3 A cleaning sponge (not shown in the figure) is attached to the inner wall of the fitting part 82. The cleaning sponge can automatically clean the outer surface of the limiting part 8 as it slides along the guide tube 4, preventing the accumulation of dust or debris from affecting the smoothness of sliding.

[0050] The implementation principle of a drill bit with a debris collection function in this application embodiment is as follows: When drilling with an electric drill, the guide tube 4 is installed on the drill bit body 1, and the connecting lug 9 is fixedly connected to the drill base. The telescopic cover 5 fits against the surface of the object being drilled. As the drill bit body 1 rotates and penetrates deeper, the generated debris is blocked by the guide tube 4 and the telescopic cover 5, preventing it from splashing everywhere. Because the inner wall of the guide tube 4 is inclined, the debris will naturally move towards the dust outlet 41 under the action of gravity and airflow, and then enter the dust collection bottle 6 through the dust outlet 41. When the dust collection bottle 6 needs to be cleaned, it is removed from the guide tube 4 by the fixing structure 3, and then reinstalled after cleaning. When storing the dust collection bottle 6, the sleeve 100 is rotated until its central axis is parallel to the central axis of the dust collection bottle 6 and inserted into the storage groove 42. At the same time, the bottle mouth of the dust collection bottle 6 is inserted into the limiting groove 33, and the bottle bottom is inserted into the slot 35, thereby realizing the storage and fixation of the dust collection bottle 6. This design effectively solves the problems of flying debris and difficult cleaning when drilling with traditional electric drills, improving work efficiency and safety, and making it easy to carry and store.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drill bit having a debris collection function, characterized by: The utility model relates to a drill bit, including drill bit body (1), rotating structure (2) and fixed structure (3), the drill bit body (1) is rotated and is provided with guide pipe (4) through rotating structure (2), the axial end surface of guide pipe (4) is fixedly connected with telescopic cover (5), guide pipe (4) and telescopic cover (5) can cover drill bit body (1), the inner wall surface of guide pipe (4) is opened dust outlet (41) with the inner chamber intercommunication of dust collecting bottle (6), the inner wall surface of guide pipe (4) is inclined and sets up for guiding the drill hole and produces the scrap to dust outlet (41) place.

2. The drill bit having a debris collection function according to claim 1, wherein: The fixed structure (3) includes a clamping block (31) and a clamping groove (32) for inserting the clamping block (31), the clamping block (31) is arranged on the dust collecting bottle (6), and the clamping groove (32) is arranged on the guide pipe (4); or the clamping block (31) is arranged on the guide pipe (4), and the clamping groove (32) is arranged on the dust collecting bottle (6).

3. The drill bit of claim 2, wherein: Further comprising a fixing plate (7) arranged on the outer circumferential surface of the guide pipe (4), the clamping groove (32) is arranged on the fixing plate (7), the clamping block (31) can be arranged on the dust collecting bottle (6) in the axial sliding mode of the guide pipe (4), the fixed structure (3) further comprises a limiting groove (33) and a limiting block (34) arranged on the dust collecting bottle (6), the outer circumferential surface of the guide pipe (4) is provided with a limiting member (8), the limiting member (8) comprises a limiting portion (81), the limiting groove (33) is arranged on the limiting portion (81), and the fixing plate (7) and the limiting member (8) are arranged in the axial direction of the guide pipe (4), when the dust collecting bottle (6) is in a dust collecting state, the clamping block (31) is inserted into the clamping groove (32), and the limiting block (34) is inserted into the limiting groove (33).

4. The drill bit of claim 3, wherein: The dust outlet (41) is used for inserting the bottle opening of the dust collecting bottle (6), the limiting member (8) is arranged on the outer circumferential surface of the guide pipe (4) in a rotating mode around the central axis of the guide pipe (4), the limiting groove (33) is arranged on one of the two surfaces of the limiting portion (81) arranged in the radial direction of the guide pipe (4), and the limiting groove (33) penetrates the two surfaces of the limiting portion (81) arranged in the axial direction of the guide pipe (4).

5. The drill bit of claim 4, wherein: The fixed structure (3) further comprises a slot (35) arranged on the fixing plate (7), when the dust collecting bottle (6) is in a storage state, the bottle opening of the dust collecting bottle (6) is inserted into the limiting groove (33), and the bottle bottom of the dust collecting bottle (6) is inserted into the slot (35).

6. The drill bit of claim 5, wherein: The limiting piece (8) can slide along the axial direction of the guide tube (4), a connecting lug (9) is further arranged on the outer peripheral surface of the guide tube (4) and can rotate, the rotating axis of the connecting lug (9) extends along the radial direction of the guide tube (4), the connecting lug (9) comprises a rotating end (91) and a connecting end (92), the rotating axis of the connecting lug (9) is located on the rotating end (91), a connecting hole (921) is formed on the connecting end (92), when the dust collecting bottle (6) is in the dust collecting state, the connecting lug (9) is rotated to the position that the connecting end (92) is located on the side of the rotating end (91) far away from the limiting piece (8), the connecting lug (9) is used for being fixedly connected with the electric drill seat, and the limiting piece (8) is slid to abut against the rotating end (91); when the dust collecting bottle (6) is in the storage state, the connecting lug (9) is rotated to the position that the connecting end (92) is located on the side of the rotating end (91) close to the limiting piece (8), and the limiting piece (8) is slid to abut against the connecting end (92).

7. The drill bit of claim 5, wherein: A sleeve (100) is arranged on the dust collecting bottle (6) and can rotate, the rotating axis of the sleeve (100) extends along the radial direction of the dust collecting bottle (6), the clamping block (31) is slidably arranged in the inner cavity of the sleeve (100), and a storage groove (42) is formed on the outer peripheral surface of the guide tube (4); when the dust collecting bottle (6) is in the storage state, the sleeve (100) is rotated to the position that the central axis is parallel to the central axis of the dust collecting bottle (6), and the sleeve (100) is inserted into the storage groove (42).

8. The drill bit of claim 7, wherein: An elastic member (110) is arranged between the clamping block (31) and the sleeve (100) and is used for sliding the clamping block (31) to the position that the end portion of the clamping block (31) extends out of the inner cavity of the sleeve (100).

9. The drill bit of claim 5, wherein: The distance between the end face of the limiting block (34) far away from the dust collecting bottle (6) and the outer surface of the dust collecting bottle (6) is equal to the distance between the end face of the fixed plate (7) far away from the guide tube (4) and the outer peripheral surface of the guide tube (4).

10. The drill bit of claim 6, wherein: The limiting piece (8) comprises a sleeving part (82) fixedly connected with a limiting part (81), the sleeving part (82) is slidably sleeved on the outer peripheral surface of the guide tube (4), and a cleaning sponge is arranged on the inner wall of the sleeving part (82).

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