Integrated retractable dust cover and electric drill bit

Abstract

This disclosure provides an integrated retractable dust cover, comprising: a retractable cover body, a connecting seat, and a bearing. The retractable cover body is composed of multiple sequentially connected crests and troughs, forming a corrugated structure. One end of the retractable cover body can extend and retract along the drill bit direction of an electric drill bit, and the other end of the retractable cover body is connected to the connecting seat. A mounting through hole for fitting the drill bit is provided at the center of the bottom surface of the connecting seat. The outer ring of the bearing is embedded in the mounting through hole, and the inner ring of the bearing is used to fit the drill bit. The retractable cover body and the connecting seat are integrally molded. The integrated retractable dust cover, through its integral molding design, forms a seamless overall structure, ensuring dust protection and reducing malfunctions caused by loose components, thereby ensuring operational safety.

Description

Technical Field

[0001] This disclosure relates to the technical field of drilling apparatus, and in particular to an integrated retractable dust cover and an electric drill bit. Background Technology

[0002] In industries such as construction and decoration, furniture manufacturing, and pipe installation, construction workers generate a large amount of dust when drilling holes in materials such as walls, wood panels, or plaster ceilings. This dust not only pollutes the home environment but can also harm the health of construction workers. When large cement particles are scattered by the high-speed rotating drill bit, they can also pose safety hazards. Therefore, it is necessary to use dust covers to collect the dust generated during drilling.

[0003] However, most existing dust covers adopt a split structure, where the cover body and the cover through which the drill bit is inserted are connected by threads, clips, or other means. Gaps exist at the connection points of split dust covers, allowing dust to leak easily and affecting the dust protection effect. Furthermore, the connection structure is prone to loosening during operation due to vibration and friction, causing the dust cover to fall off, increasing construction difficulty and safety hazards. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an integrated retractable dust cover and electric drill bit that is simple in structure, robust, and highly safe.

[0005] Integrated retractable dust cover and electric drill bit.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] An integrated retractable dust cover for electric drill bits includes: a retractable cover body, a connecting seat, and a bearing.

[0008] The retractable cover is composed of multiple wave crests and troughs connected in sequence to form a corrugated structure. One end of the retractable cover can extend and retract along the drill bit direction of the electric drill bit, and the other end of the retractable cover is connected to the connecting seat.

[0009] The bottom center of the connecting seat is provided with a mounting through hole for fitting the drill bit, the outer ring of the bearing is embedded in the mounting through hole, and the inner ring of the bearing is used to fit the drill bit.

[0010] The retractable cover and the connecting seat are integrally formed.

[0011] In one embodiment, the integrated retractable dust cover is a transparent nylon dust cover.

[0012] In one embodiment, an annular protrusion is coaxially provided on the side of the mounting through hole away from the cover, and the outer ring of the bearing is embedded in the inner hole of the annular protrusion. The annular protrusion and the connecting seat are integrally formed.

[0013] In one embodiment, an annular boss extends from one end of the mounting through hole near the retractable cover, and the annular boss is disposed along the periphery of the mounting through hole.

[0014] In one embodiment, the annular boss and the connecting seat are integrally formed.

[0015] In one embodiment, the bottom surface of the connector is provided with a plurality of annular protrusions on the side opposite to the cover, the annular protrusions being coaxially arranged with the mounting through hole, and the diameter of the annular protrusions being larger than that of the mounting through hole.

[0016] In one embodiment, the annular protrusion and the connecting seat are integrally formed.

[0017] In one embodiment, the diameter of the connector is smaller than the diameter of the cover.

[0018] In one embodiment, an arc transition portion is provided between the connecting seat and the retractable cover.

[0019] This disclosure also provides an electric drill bit, comprising: a body, a drill bit, and an integrated retractable dust cover as described in any of the above embodiments. The body is provided with a drill bit clamp, and one end of the drill bit passes through the mounting through hole of the integrated retractable dust cover and is fixedly connected to the drill bit clamp, thereby connecting the integrated retractable dust cover to the electric drill bit.

[0020] Compared with the prior art, this disclosure has at least the following advantages:

[0021] 1. The aforementioned integrated retractable dust cover, with its retractable cover body and connecting base molded as a single unit, eliminates gaps at the connection points, ensuring effective dust protection. Simultaneously, the integrated design simplifies installation, improves construction efficiency, reduces the failure rate caused by loose connecting parts, and ensures operational safety.

[0022] 2. The integrated retractable dust cover features a corrugated structure design, enabling it to extend and retract. Its structure is similar to a spring, deforming under external force to ensure smooth drilling operations. As the drill bit penetrates deeper, the retractable cover folds accordingly, preventing it from becoming too long and affecting construction efficiency. Furthermore, one end of the retractable cover always remains in contact with the working surface, effectively preventing dust from escaping.

[0023] 3. The integrated retractable dust cover has a through hole in the center of the connecting seat and a bearing is embedded therein for drilling bits or hole openers to be inserted, so that the integrated retractable dust cover remains stationary when the hole opener or drill bit is rotating. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an integrated retractable dust cover according to one embodiment;

[0026] Figure 2 for Figure 1 A cross-sectional view of the integrated retractable dust cover shown;

[0027] Figure 3 for Figure 2 A partial enlarged view of the sectional view shown;

[0028] Figure 4 for Figure 1 The diagram shows the structure of the integrated retractable dust cover in another state. Detailed Implementation

[0029] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0033] Please see Figures 1 to 4 This is an embodiment of the present invention, a one-piece retractable dust cover 10 for use with electric drill bits. It includes a retractable cover body 100, a connecting seat 200, and a bearing 300. The retractable cover body 100 is composed of multiple sequentially connected crests 110 and troughs 120, forming a corrugated structure. One end of the retractable cover body 100 can extend and retract along the direction of the electric drill bit, and the other end of the retractable cover body 100 is connected to the connecting seat 200. The bottom center of the connecting seat 200 is provided with a mounting through hole 210 for fitting the drill bit 21. The outer ring of the bearing 300 is embedded in the mounting through hole 210, and the inner ring of the bearing 300 is used to fit the drill bit. The retractable cover body 100 and the connecting seat 200 are integrally formed.

[0034] In this embodiment, the integrated telescopic dust cover 10, with its telescopic cover body 100 and connecting seat 200 being integrally molded, avoids gaps at the connection point, ensuring dustproof performance. Simultaneously, the integral design simplifies installation, improves construction efficiency, and avoids safety issues caused by loose connecting parts, ensuring operational safety. Furthermore, the telescopic cover body 100 of the integrated telescopic dust cover 10 adopts a corrugated structure design, enabling its telescopic function. Its structure is similar to a spring, deforming under external force to ensure smooth drilling operations. As the drill bit 21 penetrates deeper, the telescopic cover body 100 folds accordingly, preventing excessive length and ensuring efficient construction. Moreover, one end of the telescopic cover body 100 always remains in contact with the working surface, effectively preventing dust spillage. Meanwhile, the integrated retractable dust cover 10 has an installation through hole 210 in the center of the connecting seat 200 and a bearing 300 embedded therein, which is used to pass through the drill bit 21 or the hole opener 22, ensuring that the integrated retractable dust cover 10 remains stationary when the hole opener 22 or the drill bit 21 rotates.

[0035] Furthermore, the integrated retractable dust cover 10 is a transparent nylon dust cover, which not only gives it good wear resistance and impact resistance, but also extends its service life. In addition, the transparent integrated retractable dust cover 10 allows construction personnel to observe the construction situation in real time, promptly identify and handle problems, and improve drilling accuracy and safety.

[0036] like Figures 1 to 3 As shown, in one embodiment, an annular protrusion 211 is coaxially provided on the side of the mounting through hole 210 away from the retractable cover 100, and the outer ring of the bearing 300 is embedded in the inner hole of the annular protrusion 211. The annular protrusion 211 and the connecting seat 200 are integrally formed.

[0037] Understandably, an annular protrusion 211 is provided on the bottom surface of the connecting seat 200, away from the retractable cover 100, for mounting the bearing 300. This means the bearing 300 is mounted on the outside of the retractable cover 100, thereby reducing the thickness of the connecting seat 200 and preventing the formation of a protrusion on the inside, facilitating the installation of other auxiliary tools such as the hole opener 22. Furthermore, the integrated molding process simplifies the production process, strengthens the structure, prevents loosening due to vibration and wear, and extends the equipment's service life.

[0038] like Figures 1 to 3 As shown, in one embodiment, an annular boss 212 extends from one end of the mounting through hole 210 near the retractable cover 100, and the annular boss 212 is disposed along the periphery of the mounting through hole 210.

[0039] like Figures 1 to 3 As shown, in one embodiment, the annular boss 212 and the connecting seat 200 are integrally formed.

[0040] Understandably, the annular boss 212 is formed on the bottom side of the connecting seat 200 facing the retractable cover 100 and extends outward from the periphery of the mounting through hole 210. This enhances the structural stability of the mounting through hole 210, prevents deformation or damage caused by external forces, avoids displacement of drilling tools such as the drill bit 21, and improves drilling accuracy and operational safety. Simultaneously, the annular boss 212 is integrally formed with the connecting seat 200, enhancing the rigidity of the overall structure, preventing malfunctions caused by loose connecting parts, and further improving construction efficiency and safety.

[0041] It should be noted that the integrated retractable dust cover 10 can also be equipped with a sealing baffle or sealing ring on the annular boss 212 to prevent dust from entering the bearing 300.

[0042] like Figures 1 to 4As shown, in one embodiment, the bottom surface of the connecting seat 200 is provided with a plurality of annular protrusions 213 on the side opposite to the retractable cover 100. The annular protrusions 213 are coaxially arranged with the mounting through hole 210, and the diameter of the annular protrusions 213 is larger than that of the mounting through hole 210.

[0043] like Figures 1 to 4 As shown, in one embodiment, the annular protrusion 213 and the connecting seat 200 are integrally formed.

[0044] Specifically, in this embodiment, there are three annular protrusions 213. All three annular protrusions 213 are coaxially arranged with the mounting through hole 210 and are evenly spaced. By providing the annular protrusions 213 on the side of the connecting seat 200 facing the drill bit 21, the pressure during drilling can be dispersed, reducing direct impact on the bottom surface and preventing cracks or deformation of the bottom surface of the connecting seat 200 during drilling, further improving the safety and reliability of the drilling operation. Furthermore, the annular protrusions 213 and the connecting seat 200 are integrally formed, which improves the stability of the overall structure, simplifies the assembly process, and prevents the annular protrusions 213 from falling off or shifting, thus affecting the dispersion effect.

[0045] like Figures 1 to 4 As shown, in one embodiment, the diameter of the connecting seat 200 is smaller than the diameter of the telescopic cover 100. It is understood that the end of the telescopic cover 100 near the connecting seat 200 extends towards the connecting seat 200 to connect with it. This prevents the force exerted by the construction personnel from being directly applied to the telescopic structure of the telescopic cover 100, ensuring the stability of the telescopic cover 100 during use. It also ensures that the telescopic cover 100 is evenly stressed and extends, reducing deformation or damage to the telescopic cover 100 caused by uneven local stress, thereby affecting drilling accuracy and efficiency.

[0046] It should be noted that the connecting seat 200 is not foldable to prevent deformation of the connecting seat 200 due to external forces during drilling, which could cause the drill bit 21 to deviate from its predetermined position, affecting drilling accuracy and operational safety.

[0047] like Figures 1 to 4 As shown, in one embodiment, an arc transition portion 214 is provided between the connecting seat 200 and the retractable cover 100. Specifically, in this embodiment, the arc transition portion 214 between the connecting seat 200 and the retractable cover 100 is a concave arc, which smoothly connects the retractable cover 100 and the connecting seat 200, reduces stress concentration, prevents breakage at the connection between the retractable cover 100 and the connecting seat 200, improves the stability and safety of drilling operations, and extends the service life of the integrated retractable dust cover 10.

[0048] This disclosure also provides an electric drill bit comprising: a body, a drill bit 21, and an integrated retractable dust cover 10 as described in any of the above embodiments. The body is provided with a drill bit clamp, and one end of the drill bit 21 passes through the mounting through hole 210 of the integrated retractable dust cover 10 and is fixedly connected to the drill bit clamp, thereby connecting the integrated retractable dust cover 10 to the electric drill bit.

[0049] In this embodiment, the electric drill bit is equipped with an integrated retractable dust cover 10. During drilling operations, one end of the integrated retractable dust cover 10 abuts against the working surface, preventing the spread of dust during drilling, thus avoiding pollution of the working environment and ensuring the health and safety of the construction personnel. Furthermore, the transparent integrated retractable dust cover 10 facilitates observation by the construction personnel without affecting drilling accuracy and efficiency. Further, the integrated retractable dust cover 10 has a bearing 300 installed in the mounting through hole 210. The drill bit passes through the bearing 300, and the integrated retractable dust cover 10 does not rotate when the drill bit rotates.

[0050] Compared with the prior art, this disclosure has at least the following advantages:

[0051] The aforementioned integrated retractable dust cover, with its retractable cover body and connecting base molded as a single unit, eliminates gaps at the connection points, ensuring effective dust protection. Simultaneously, the integrated design simplifies installation, improves construction efficiency, reduces the failure rate caused by loose connecting parts, and ensures operational safety.

[0052] 2. The integrated retractable dust cover features a corrugated structure design, enabling it to extend and retract. Its structure is similar to a spring, deforming under external force to ensure smooth drilling operations. As the drill bit penetrates deeper, the retractable cover folds accordingly, preventing it from becoming too long and affecting construction efficiency. Furthermore, one end of the retractable cover always remains in contact with the working surface, effectively preventing dust from escaping.

[0053] 3. The integrated retractable dust cover has a through hole in the center of the connecting seat and a bearing is embedded therein for drilling bits or hole openers to be inserted, so that the integrated retractable dust cover remains stationary when the hole opener or drill bit is rotating.

[0054] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An integrated retractable dust cover, characterized in that, The integrated retractable dust cover includes: a retractable cover body, a connecting seat, and a bearing; The retractable cover is composed of multiple wave crests and troughs connected in sequence to form a corrugated structure. One end of the retractable cover can extend and retract along the drill bit direction of the electric drill bit, and the other end of the retractable cover is connected to the connecting seat. The bottom surface of the connecting seat is provided with a mounting through hole, the outer ring of the bearing is embedded in the mounting through hole, and the inner ring of the bearing is used to fit the drill bit. The retractable cover and the connecting seat are integrally formed.

2. The integrated retractable dust cover according to claim 1, characterized in that, The integrated retractable dust cover is a transparent nylon dust cover.

3. The integrated retractable dust cover according to claim 1, characterized in that, The mounting through hole is coaxially provided with an annular protrusion on the side opposite to the cover body. The outer ring of the bearing is embedded in the inner hole of the annular protrusion. The annular protrusion and the connecting seat are integrally formed.

4. The integrated retractable dust cover according to claim 1, characterized in that, An annular boss extends from one end of the mounting through hole near the retractable cover, and the annular boss is arranged along the periphery of the mounting through hole.

5. The integrated retractable dust cover according to claim 4, characterized in that, The annular boss and the connecting seat are integrally formed.

6. The integrated retractable dust cover according to claim 1, characterized in that, The bottom surface of the connector is provided with a plurality of annular protrusions on the side opposite to the cover. The annular protrusions are coaxially arranged with the mounting through hole, and the diameter of the annular protrusions is larger than that of the mounting through hole.

7. The integrated retractable dust cover according to claim 6, characterized in that, The annular protrusion and the connecting seat are integrally formed.

8. The integrated retractable dust cover according to claim 1, characterized in that, The diameter of the connecting seat is smaller than the diameter of the retractable cover.

9. The integrated retractable dust cover according to claim 1, characterized in that, An arc transition section is provided between the connecting seat and the retractable cover.

10. An electric drill bit, characterized in that, include: The machine body, the drill bit, and the integrated retractable dust cover according to any one of claims 1-9; the machine body is provided with a drill bit clamp, one end of the drill bit passes through the mounting through hole of the integrated retractable dust cover and is fixedly connected to the drill bit clamp, so that the integrated retractable dust cover is connected to the electric drill bit.

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