Rechargeable electric hand drill
By designing a combination structure of dustproof sleeve and protective sleeve in the drill, using mounting rings, springs, anti-deposition components and electromagnets, the problem of dust and debris accumulation in the drill is solved, and the drilling process is realized Effective collection and protection in the system improves working accuracy and safety.
Patent Information
- Application Number
- CN202421090462.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
When drilling metal workpieces with a flash drill, a large amount of dust and debris are generated on the working surface of the drill bit, which can easily cause harm to the operators, and dust and debris accumulate in the dust collecting cover, hindering the normal operation of the drill bit.
A rechargeable electric drill is designed, adopting a combination structure of dustproof sleeve and protective sleeve. By installing rings, springs, anti-deposition components and electromagnets, the dustproof sleeve moves left and right and rotation to ensure that it is connected with The drill bit is in close contact, collects metal debris, and drives the electromagnet to rotate simultaneously through the drive assembly to adsorb and rotate the metal debris to avoid accumulation.
Effectively prevent metal debris from accumulating in one place, ensure the normal operation of the drill bit, improve drilling accuracy and safety, and reduce the harm to the operators.
Smart Images
Figure CN222288884U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hand electric drills, in particular to a rechargeable hand electric drill. Background Art
[0002] A hand drill is a small, portable drilling tool consisting of a small motor, a control switch, a drill chuck and a drill bit. A hand drill is a drilling tool powered by an AC power supply or a DC battery and is a type of handheld power tool.
[0003] When using a hand drill to drill a metal workpiece, a large amount of dust and debris is often generated on the working surface of the drill bit, which can easily cause harm to the operator. For example, Chinese patent CN215903774U discloses a dust-collecting hand drill, which collects all the dust generated during the drilling process into a dust hood. As the drill bit is inserted into the dust hood, the compression spring keeps the dust hood in close contact with the contact surface, thereby achieving a good dust collection effect. However, after the dust enters the dust hood, it falls on the inner bottom wall of the dust hood due to gravity. As the debris continues to accumulate, too much dust and debris may accumulate on the inner bottom wall of the dust hood, hindering the drilling work of the drill bit. Therefore, we propose a rechargeable hand drill. Utility Model Content
[0004] The utility model aims to provide a rechargeable hand electric drill, which can conveniently collect metal debris and prevent the metal debris from piling up too much in one place to hinder the normal operation of the drill bit.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a rechargeable hand drill, comprising a hand drill body, a drill bit rotatably connected to the hand drill body, and a dustproof component installed on the hand drill body, the dustproof component comprising a protective sleeve installed on the outside of the hand drill body, a mounting ring sliding left and right on the inner wall of the protective sleeve, and a dustproof sleeve rotatably connected to the right side of the mounting ring and extending to the outside of the protective sleeve, a spring is connected between the mounting ring and the inner wall of the protective sleeve, an anti-slip positioning component with one end connected to the protective sleeve is installed on the mounting ring, an electromagnet is installed on the inner wall of the dustproof sleeve, and a driving component for driving the dustproof sleeve to rotate is installed on the protective sleeve.
[0006] By adopting the above technical solution, when the drill bit is drilling a metal workpiece, the dustproof sleeve can be moved left and right and rotated around the protective sleeve through the mounting ring. When the drill bit is positioned before drilling, the protective sleeve is connected to the dustproof sleeve by the anti-slip positioning assembly so that the drill bit extends to the outside of the protective sleeve, which is convenient for positioning the drilling position to avoid deviation. After positioning, the connection between the protective sleeve and the dustproof sleeve is released so that the right side of the protective sleeve is flush with the drill bit. Then, as the drilling depth of the drill bit increases, the dustproof sleeve squeezes the spring to retract the dustproof sleeve into the inside of the protective sleeve, so that the dustproof sleeve is always in close contact with the processing surface, which is convenient for collecting metal debris. At the same time, the driving assembly drives the dustproof sleeve to rotate, so that the electromagnet in the dustproof sleeve rotates synchronously, driving the metal debris adsorbed on the electromagnet to rotate, avoiding excessive debris accumulated on the bottom wall of the dustproof sleeve affecting the normal operation of the drill bit.
[0007] The utility model is further configured as follows: the anti-dropping positioning assembly comprises a rotating ring rotatably connected to the outside of the mounting ring and a limiting column mounted on the rotating ring and extending to the top of the protective sleeve.
[0008] The utility model is further configured as follows: the anti-dropping positioning component further comprises a rectangular strip hole and an arc strip hole provided on the inner top wall of the protective sleeve, and the rectangular strip hole and the arc strip hole are connected to each other.
[0009] By adopting the above technical scheme, the dustproof sleeve can be moved left and right and rotated around the protective sleeve through the mounting ring. When positioning the drilling position of the drill bit before drilling, the limit column is squeezed to the left to move in the rectangular bar hole, and the spring is compressed. When the limit column moves to the arc-shaped bar hole, the rotating ring is rotated to clamp the limit column in the arc-shaped bar hole. At this time, the dustproof sleeve is retracted into the inside of the protective sleeve, and the drill bit extends to the outside of the protective sleeve, which is convenient for positioning the drilling position and avoiding deviation. After determining the position and starting to drill, the rotating ring is rotated in the reverse direction, and the limit column moves from the arc-shaped bar hole to the rectangular bar hole. Then the spring is reset to make the dustproof sleeve move right to be flush with the right end of the drill bit, and metal debris is collected during the drilling process.
[0010] The utility model is further configured as follows: the distance between the front and rear sides of the inner wall of the rectangular strip hole is equal to the distance between the left and right sides of the inner wall of the arc-shaped strip hole.
[0011] By adopting the above technical solution, the limiting column can be stuck in the arc-shaped bar hole when it moves from the rectangular bar hole to the arc-shaped bar hole.
[0012] The utility model is further configured as follows: the width of the rotating ring is smaller than the width of the mounting ring; a sliding block having one end movably connected to the inner bottom wall of the protective sleeve is installed at the bottom of the mounting ring.
[0013] By adopting the above technical solution, the width of the rotating ring is relatively small, so as to reserve an installation position for the slider on the installation ring, and the slider improves the stability of the connection between the installation ring and the protective sleeve.
[0014] The utility model is further configured as follows: a plurality of electromagnets are provided and are distributed in an annular shape with equal distances on the dustproof sleeve.
[0015] By adopting the above technical solution, when the dustproof sleeve rotates, the multiple electromagnets inside it can absorb the collected metal debris to prevent excessive accumulation of metal debris in a certain place.
[0016] The utility model is further configured as follows: the driving assembly comprises a mounting frame mounted on the protective sleeve, a driving motor mounted on the mounting frame, and a gear connected to an output shaft of the driving motor.
[0017] The utility model is further configured as follows: the driving assembly further comprises a plurality of ridges mounted on the outside of the dustproof sleeve, and the ridges are meshed with gears.
[0018] By adopting the above technical solution, during the drilling process, the driving motor starts to drive the gear to rotate, and the gear engages with the convex ridge on the outside of the dustproof sleeve, so that the dustproof sleeve can also rotate while moving left and right, so that the electromagnet in the dustproof sleeve rotates synchronously, driving the metal debris adsorbed on the electromagnet to rotate, thereby avoiding excessive debris accumulation on the bottom wall of the dustproof sleeve that affects the normal operation of the drill bit.
[0019] The utility model is further configured as follows: the distance from the outer side of the convex edge to the outer side of the dustproof sleeve is smaller than the distance from the outer side wall of the dustproof sleeve to the inner side wall of the protective sleeve.
[0020] By adopting the above technical solution, the convex edge will not affect the movement of the dustproof sleeve into the protective sleeve.
[0021] The utility model is further configured as follows: a protective sleeve is installed on the hand electric drill body, and the exterior of the protective sleeve is designed to increase resistance.
[0022] By adopting the above technical solution, the protective cover protects the hands of the operator, and the resistance-enhanced design makes it easier for the operator to work by holding the machine.
[0023] The beneficial effects of the utility model are:
[0024] 1. The dustproof sleeve of the rechargeable electric hand drill can be moved left and right and rotated around the protective sleeve through the mounting ring. When the drill bit is positioned before drilling, the protective sleeve is connected to the dustproof sleeve by an anti-slip positioning assembly so that the drill bit extends to the outside of the protective sleeve, which is convenient for positioning the drilling position and avoids deviation.
[0025] 2. During the drilling process of the rechargeable electric hand drill, as the drilling depth of the drill bit increases, the dustproof sleeve squeezes the spring to retract the dustproof sleeve into the inside of the protective sleeve, so that the dustproof sleeve is always in close contact with the processing surface, which is convenient for collecting metal debris. At the same time, the driving component drives the dustproof sleeve to rotate, so that the electromagnet in the dustproof sleeve rotates synchronously, driving the metal debris adsorbed on the electromagnet to rotate, thereby avoiding excessive debris accumulated on the bottom wall of the dustproof sleeve affecting the normal operation of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0027] Figure 1 It is a schematic diagram of the structure of the utility model;
[0028] Figure 2 It is a schematic cross-sectional structure diagram of the connection between the protective sleeve and the dustproof sleeve of the utility model;
[0029] Figure 3 It is a top view of the connection structure of the protective sleeve and the dustproof sleeve of the utility model.
[0030] In the figure, 1. hand drill body; 2. protective sleeve; 3. mounting ring; 4. dustproof sleeve; 5. spring; 6. rotating ring; 7. limit column; 8. rectangular bar hole; 9. arc bar hole; 10. slider; 11. drill bit; 12. electromagnet; 13. mounting bracket; 14. drive motor; 15. gear; 16. ridge; 17. protective sleeve. DETAILED DESCRIPTION
[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] See also Figure 1-3The utility model provides a rechargeable hand drill, comprising a hand drill body 1, a drill bit 11 rotatably connected to the hand drill body 1, and a dustproof component installed on the hand drill body 1, the dustproof component comprising a protective sleeve 2 installed on the outside of the hand drill body 1, a mounting ring 3 sliding left and right on the inner wall of the protective sleeve 2, and a dustproof sleeve 4 rotatably connected to the right side of the mounting ring 3 and extending to the outside of the protective sleeve 2, a spring 5 is connected between the mounting ring 3 and the inner wall of the protective sleeve 2, an anti-drop positioning component with one end connected to the protective sleeve 2 is installed on the mounting ring 3, an electromagnet 12 is installed on the inner wall of the dustproof sleeve 4, and a driving component for driving the dustproof sleeve 4 to rotate is installed on the protective sleeve 2.
[0033] When the drill bit 11 is drilling a metal workpiece, the dustproof sleeve 4 can be moved left and right and rotated around the protective sleeve 2 through the mounting ring 3. When the drill bit 11 is positioned before drilling, the protective sleeve 2 is connected to the dustproof sleeve 4 by the anti-slip positioning component so that the drill bit 11 extends to the outside of the protective sleeve 2, which is convenient for positioning the drilling position to avoid deviation. After positioning, the connection between the protective sleeve 2 and the dustproof sleeve 4 is released, so that the right side of the protective sleeve 2 is flush with the drill bit 11, and then as the drilling depth of the drill bit 11 increases, the dustproof sleeve 4 squeezes the spring 5 so that the dustproof sleeve 4 is retracted into the inside of the protective sleeve 2, so that the dustproof sleeve 4 is always in close contact with the processing surface, which is convenient for collecting metal debris. At the same time, the driving component drives the dustproof sleeve 4 to rotate, so that the electromagnet 12 in the dustproof sleeve 4 rotates synchronously, driving the metal debris adsorbed on the electromagnet 12 to rotate, and avoiding excessive debris accumulated on the bottom wall of the dustproof sleeve 4 affecting the normal operation of the drill bit 11.
[0034] The anti-slip positioning assembly includes a rotating ring 6 rotatably connected to the outside of the mounting ring 3 and a limiting column 7 installed on the rotating ring 6 and extending to the top of the protective sleeve 2. The anti-slip positioning assembly also includes a rectangular bar hole 8 and an arcuate bar hole 9 opened on the inner top wall of the protective sleeve 2, and the rectangular bar hole 8 and the arcuate bar hole 9 are connected to each other.
[0035] The dust-proof sleeve 4 is able to move left and right and rotate around the protective sleeve 2 through the mounting ring 3. When positioning the drilling position of the drill bit 11 before drilling, the limit column 7 is squeezed to the left to move in the rectangular bar hole 8, and the spring 5 is compressed. When the limit column 7 moves to the arc-shaped bar hole 9, the rotating ring 6 is rotated to clamp the limit column 7 in the arc-shaped bar hole 9. At this time, the dust-proof sleeve 4 is retracted into the interior of the protective sleeve 2, and the drill bit 11 extends to the outside of the protective sleeve 2, which is convenient for positioning the drilling position and avoiding deviation. After determining the position and starting to drill, the rotating ring 6 is rotated in the reverse direction, and the limit column 7 moves from the arc-shaped bar hole 9 to the rectangular bar hole 8. Then the spring 5 is reset to make the dust-proof sleeve 4 move right to be flush with the right end of the drill bit 11, and metal debris is collected during the drilling process.
[0036] The distance between the front and rear sides of the inner wall of the rectangular bar hole 8 is equal to the distance between the left and right sides of the inner wall of the arcuate bar hole 9, so that the limiting column 7 can be stuck in the arcuate bar hole 9 when it moves from the rectangular bar hole 8 to the arcuate bar hole 9.
[0037] The width of the rotating ring 6 is smaller than that of the mounting ring 3. A slider 10 is installed at the bottom of the mounting ring 3 and one end of the slider 10 is movably connected to the inner bottom wall of the protective sleeve 2. The smaller width of the rotating ring 6 reserves an installation position for the slider 10 on the mounting ring 3. The slider 10 improves the stability of the connection between the mounting ring 3 and the protective sleeve 2.
[0038] There are multiple electromagnets 12 and they are distributed in a circular shape at equal distances on the dustproof sleeve 4. When the dustproof sleeve 4 rotates, the multiple electromagnets 12 inside it can absorb the collected metal debris to prevent the metal debris from accumulating too much in one place.
[0039] The drive assembly includes a mounting frame 13 mounted on the protective sleeve 2, a drive motor 14 mounted on the mounting frame 13, and a gear 15 connected to the output shaft of the drive motor 14. The drive assembly also includes a plurality of ridges 16 mounted on the outside of the dustproof sleeve 4, and the ridges 16 are meshed with the gear 15.
[0040] During the drilling process, the driving motor 14 starts to drive the gear 15 to rotate, and the gear 15 engages with the convex ridge 16 on the outside of the dustproof sleeve 4, so that the dustproof sleeve 4 can also rotate while moving left and right, so that the electromagnet 12 in the dustproof sleeve 4 rotates synchronously, driving the metal debris adsorbed on the electromagnet 12 to rotate, thereby preventing excessive debris from accumulating on the bottom wall of the dustproof sleeve 4 and affecting the normal operation of the drill bit 11.
[0041] The distance from the outer side of the ridge 16 to the outer side of the dust sleeve 4 is smaller than the distance between the outer wall of the dust sleeve 4 and the inner wall of the protective sleeve 2 , so that the ridge 16 will not affect the movement of the dust sleeve 4 into the protective sleeve 2 .
[0042] A protective sleeve 17 is installed on the hand electric drill body 1. The outer portion of the protective sleeve 17 is designed to increase resistance. The protective sleeve 17 protects the hands of the operator. The increased resistance design makes it easier for the operator to hold the machine to work.
Claims
1. A rechargeable hand drill, comprising a hand drill body (1), a drill bit (11) rotatably connected to the hand drill body (1), and a dustproof component mounted on the hand drill body (1), characterized in that: The dustproof component comprises a protective sleeve (2) mounted on the outside of the hand drill body (1), a mounting ring (3) sliding left and right on the inner wall of the protective sleeve (2), and a dustproof sleeve (4) rotatably connected to the right side of the mounting ring (3) and extending to the outside of the protective sleeve (2); a spring (5) is connected between the mounting ring (3) and the inner wall of the protective sleeve (2); an anti-slip positioning component having one end connected to the protective sleeve (2) is mounted on the mounting ring (3); an electromagnet (12) is mounted on the inner wall of the dustproof sleeve (4); and a driving component for driving the dustproof sleeve (4) to rotate is mounted on the protective sleeve (2).
2. A rechargeable hand drill according to claim 1, characterized in that: The anti-drop positioning assembly comprises a rotating ring (6) rotatably connected to the outside of the mounting ring (3) and a limiting column (7) mounted on the rotating ring (6) and extending to the top of the protective sleeve (2).
3. A rechargeable hand drill according to claim 2, characterized in that: The anti-drop positioning component also includes a rectangular strip hole (8) and an arc-shaped strip hole (9) formed on the inner top wall of the protective sleeve (2), and the rectangular strip hole (8) and the arc-shaped strip hole (9) are connected to each other.
4. A rechargeable hand drill according to claim 3, characterized in that: The distance between the front and rear sides of the inner wall of the rectangular strip hole (8) is equal to the distance between the left and right sides of the inner wall of the arc-shaped strip hole (9).
5. A rechargeable hand drill according to claim 4, characterized in that: The width of the rotating ring (6) is smaller than the width of the mounting ring (3), and a sliding block (10) is mounted at the bottom of the mounting ring (3), one end of which is movably connected to the inner bottom wall of the protective sleeve (2).
6. A rechargeable hand drill according to claim 5, characterized in that: The electromagnets (12) are provided in plurality and are distributed in an annular manner and at equal distances on the dustproof sleeve (4).
7. A rechargeable hand drill according to claim 6, characterized in that: The driving assembly comprises a mounting frame (13) mounted on the protective sleeve (2), a driving motor (14) mounted on the mounting frame (13), and a gear (15) connected to an output shaft of the driving motor (14).
8. A rechargeable hand drill according to claim 7, characterized in that: The driving assembly further comprises a plurality of ridges (16) mounted on the outside of the dustproof sleeve (4), and the ridges (16) are meshed with the gears (15).
9. A rechargeable hand drill according to claim 8, characterized in that: The distance from the outer side of the convex ridge (16) to the outer side of the dustproof sleeve (4) is smaller than the distance between the outer side wall of the dustproof sleeve (4) and the inner side wall of the protective sleeve (2).
10. The rechargeable hand drill according to claim 9, characterized in that: A protective sleeve (17) is installed on the hand electric drill body (1), and the exterior of the protective sleeve (17) is designed to increase resistance.