Novel nail grinding device with grinding wheel assembled with exhaust structure

Abstract

The utility model provides a novel nail grinding device with a grinding wheel assembly exhaust structure, which relates to the technical field of nail grinding devices and comprises a grinding cover, a central grinding wheel is arranged in the grinding cover, a grinding wheel fixing seat is arranged in the grinding cover, an LED lamp PCBA (printed circuit board assembly) board is arranged on one side of the grinding wheel fixing seat, and a front cover is arranged in the LED lamp PCBA board. The exhaust structure for assembling the novel grinding wheel is adopted, so that internal air can be effectively exhausted, air pressure resistance in the assembling process is reduced, assembling operation is smoother, the grinding wheel can be installed without excessive force, and meanwhile, due to the existence of the exhaust system, the internal pressure is in a more stable state after the grinding wheel is assembled. The problems of looseness, displacement and the like of the center grinding wheel caused by the change of internal pressure are reduced, so that the assembling reliability of the center grinding wheel is improved; the stable assembly state can ensure that the grinding wheel always keeps the correct position and angle in the using process, the stability and consistency of the nail grinding effect are ensured, and the service life of the nail grinding device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of armor grinding technology, and in particular to an armor grinding device with a novel grinding wheel assembly and exhaust structure. Background Technology

[0002] According to Chinese Patent No. CN108497676A, a novel nail grinder is disclosed, comprising a body that conforms to an ergonomic design. The upper end of the body is provided with a connector, and the upper end of the connector is provided with a main grinding head. The front end of the connector is also provided with a spare grinding head mounting slot, in which a spare grinding head is mounted. Sound insulation cotton is also provided inside the connector. A switch is provided on the front surface of the body, and a battery cover is provided at the rear end, integrating the spare grinding head directly onto the body, making it more convenient to carry and use.

[0003] The aforementioned prior art and related documents have the following technical problems:

[0004] 1. Due to the lack of an exhaust system, the assembly process cannot guarantee proper assembly and there is a risk of ejection, resulting in no quality assurance; the operation violates the Industrial Engineering (IE) method, requiring a lot of force for assembly, leading to low production efficiency and a high risk of workplace injuries; when disassembling and assembling the grinding wheel assembly, the presence of compressed gas makes assembly difficult and prone to incomplete assembly, leading to safety risks for users. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel grinding wheel assembly with an exhaust structure for armor grinding.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a novel grinding wheel assembly with an exhaust structure for an armor grinder, comprising a grinding cover, a control PCBA, a main PCBA board, and a 390 motor. The grinding cover contains a central grinding wheel and a grinding wheel mounting base. An LED light PCBA board is located on one side of the grinding wheel mounting base. A front cover is located inside the LED light PCBA board. A motor wire is located at the bottom of the 390 motor. A right-side body is located on one side of the motor wire. A spotlight wire is located on one side of the right-side body. A lithium battery is located at the bottom of the main PCBA board. A tail cover is located on one side of the lithium battery. A screw is located at the bottom of the tail cover. A left-side body is located on one side of the main PCBA board. A decorative panel is located on the top of the left-side body. A rotary switch is located on the top of the control PCBA board. A switch cover is located on the top of the rotary switch. A switch spring is located on the top of the switch cover. An LED light switch button is located on the top of the switch cover.

[0007] Preferably, the front cover has a hexagonal copper shaft inside, and the hexagonal copper shaft is positioned and connected to the front cover.

[0008] Preferably, a 390 motor is provided on one side of the hexagonal copper shaft, and the hexagonal copper shaft and the 390 motor are engaged.

[0009] Preferably, the top of the 390 motor is provided with a control PCBA, and the 390 motor and the control PCBA are connected by a snap-fit.

[0010] Preferably, a main PCBA board is provided on one side of the 390 motor, and the 390 motor is electrically connected to the main PCBA board.

[0011] Preferably, the main PCBA board has a lens on its top, and the main PCBA board and the lens are connected by a positioning connection.

[0012] Preferably, the top of the lens is provided with a 5P ribbon cable, and the 5P ribbon cable is snapped into the lens.

[0013] Beneficial effects

[0014] In this invention, the novel exhaust structure in the grinding wheel assembly effectively removes internal air, reducing air pressure resistance during assembly and making the assembly operation smoother. The grinding wheel can be installed without excessive force. Simultaneously, the exhaust system ensures a more stable internal pressure after assembly. This reduces problems such as loosening or displacement of the central grinding wheel due to internal pressure changes, thereby improving the reliability of the central grinding wheel assembly. The stable assembly ensures that the grinding wheel maintains the correct position and angle during use, guaranteeing the stability and consistency of the grinding effect and extending the service life of the grinding tool.

[0015] In this invention, a grinding wheel fixing seat is provided on one side of the central grinding wheel. The grinding wheel fixing seat is pressed into the grinding wheel using an interference fit, which provides a strong connection force and ensures that there is no relative displacement between the grinding wheel fixing seat and the grinding wheel during the operation of the armor grinder. This ensures the stability of the armor grinding operation. Even under high-speed rotation and certain pressure, this tight connection can effectively prevent the grinding wheel from separating from the fixing seat, improving the reliability of the armor grinder. The press-fit and non-removable design avoids damage to components due to accidental loosening or improper disassembly.

[0016] In this invention, a grinding wheel fixing seat is provided on one side of the hexagonal copper shaft. The hexagonal copper shaft and the grinding wheel fixing seat are fitted with a very small clearance, ensuring both a tight connection and interchangeability. When it is necessary to replace the center grinding wheel or maintain the armor grinder, the hexagonal copper shaft can be easily separated from the grinding wheel fixing seat. This interchangeability makes the maintenance and repair of the armor grinder more convenient and reduces operating costs. The clearance needs to be very small, close to zero, to minimize the shaking of the grinding wheel during operation. Stable rotation of the grinding wheel is crucial for the armor grinding effect; the small clearance fit ensures that the grinding wheel remains stable during high-speed rotation, improving the precision and quality of the armor grinding. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 Isometric view of the internal components of this utility model;

[0019] Figure 3 This is a cross-sectional view of the internal components of this utility model;

[0020] Figure 4 This is a front view of the internal components of this utility model;

[0021] Figure 5 This is a bottom view of the internal components of this utility model.

[0022] Legend:

[0023] 1. Grinding cover; 2. Center grinding wheel; 3. Grinding wheel mounting base; 4. LED light PCBA board; 5. Front cover; 6. Hexagonal copper shaft; 7. 390 motor; 8. Control PCBA; 9. LED light switch button; 10. Switch spring; 11. Switch cover plate; 12. Rotary switch; 13. Body decorative piece; 14. Left body; 15. Screw; 16. Tail cover; 17. Lithium battery; 18. Main PCBA board; 19. Lens; 20. 5P ribbon cable; 21. Motor wire; 22. Right body; 23. Spotlight wire. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0027] Reference Figure 1-4 A novel grinding wheel assembly with an exhaust structure for armor grinding includes a grinding cover 1, a control PCBA 8, a main PCBA board 18, and a 390 motor 7. The grinding cover 1 houses a central grinding wheel 2 and a grinding wheel mounting base 3. An LED light PCBA board 4 is mounted on one side of the grinding wheel mounting base 3. A front cover 5 is located inside the LED light PCBA board 4. A hexagonal copper shaft 6 is located inside the front cover 5 and is positioned to the front cover 5. A 390 motor 7 is mounted on one side of the hexagonal copper shaft 6 and is engaged with the 390 motor 7. The control PCBA 8 is mounted on the top of the 390 motor 7 and is snapped to the top. The main PCBA board 18 is located on one side of the 390 motor 7 and is electrically connected to the 390 motor 7. The top of PCBA 8 is equipped with a lens 19, and the main PCBA board 18 and the lens 19 are connected by positioning. The top of the lens 19 is equipped with a 5P ribbon cable 20, and the 5P ribbon cable 20 is snapped into the lens 19. The bottom of the 390 motor 7 is equipped with a motor wire 21. The right body 22 is located on one side of the motor wire 21. The spotlight wire 23 is located on one side of the right body 22. The bottom of the main PCBA board 18 is equipped with a lithium battery 17. The tail cover 16 is located on one side of the lithium battery 17. The bottom of the tail cover 16 is equipped with a screw 15. The left body 14 is located on one side of the main PCBA board 18. The top of the left body 14 is equipped with a body decorative piece 13. The top of the control PCBA 8 is equipped with a rotary switch 12. The top of the rotary switch 12 is equipped with a switch cover 11. The top of the switch cover 11 is equipped with a switch spring 10. The top of the switch cover 11 is equipped with an LED light switch button 9.

[0028] The new grinding wheel assembly with an exhaust structure effectively removes internal air, reducing air pressure resistance during assembly and making the assembly operation smoother. The grinding wheel can be installed without excessive force. Simultaneously, the exhaust system ensures a more stable internal pressure after assembly. This reduces problems such as loosening or displacement of the central grinding wheel 2 caused by internal pressure changes, thus improving the reliability of the central grinding wheel 2 assembly. A stable assembly ensures the grinding wheel maintains the correct position and angle during use, guaranteeing the stability and consistency of the grinding effect and extending the service life of the grinding machine. An exhaust system is designed on the grinding wheel fixing seat 3 to discharge compressed air generated when the grinding wheel fixing seat 3 is pressed into the grinding wheel through the exhaust port. A grinding wheel fixing seat 3 is located on one side of the central grinding wheel 2, and is press-fitted into the central grinding wheel 2 using an interference fit, providing strong connection force and ensuring... During operation, there is no relative displacement between the grinding wheel fixing seat 3 and the central grinding wheel 2, ensuring the stability of the grinding operation. Even under high-speed rotation and certain pressure, this tight connection effectively prevents the central grinding wheel 2 from separating from the grinding wheel fixing seat 3, improving the reliability of the grinding machine. The press-fit and non-removable design avoids damage to components due to accidental loosening or improper disassembly. The grinding wheel fixing seat 3 is located on one side of the hexagonal copper shaft 6, allowing for a very small clearance fit between the hexagonal copper shaft 6 and the grinding wheel fixing seat 3. This ensures both tightness and replaceability. When it is necessary to replace the central grinding wheel 2 or maintain the grinding machine, the hexagonal copper shaft 6 can be easily separated from the grinding wheel fixing seat 3. This replaceability makes maintenance and repair of the grinding machine more convenient and reduces operating costs. The clearance needs to be very small, close to zero, to minimize the shaking of the grinding wheel during operation. Stable rotation of the grinding wheel is crucial for the grinding effect; a small clearance fit ensures that the grinding wheel remains stable during high-speed rotation, improving the precision and quality of the grinding. Specific Implementation Example 2:

[0030] Reference Figure 1-4 This system incorporates a vacuum tube installed inside the center of the filing cover 1. During nail filing, a large amount of nail clippings and dust are generated. The vacuum tube effectively sucks in these clippings and dust, preventing them from scattering into the surrounding environment and keeping the work area clean. Whether used at home or in a professional nail salon, this reduces cleaning workload and improves the overall cleanliness of the environment.

[0031] In summary:

[0032] 1. The new type of grinding wheel assembly exhaust structure effectively removes internal air, reducing air pressure resistance during assembly and making the assembly operation smoother. The grinding wheel can be installed without excessive force. Simultaneously, the exhaust system ensures a more stable internal pressure after assembly. This reduces problems such as loosening or displacement of the central grinding wheel 2 caused by internal pressure changes, thus improving the reliability of the central grinding wheel 2 assembly. A stable assembly state ensures that the grinding wheel maintains the correct position and angle during use, guaranteeing the stability and consistency of the grinding effect and extending the service life of the grinding machine. An exhaust system is designed on the grinding wheel fixing seat 3 to discharge the compressed air generated when the grinding wheel fixing seat 3 is pressed into the grinding wheel through the exhaust port.

[0033] 2. A grinding wheel fixing seat 3 is provided on one side of the central grinding wheel 2. The grinding wheel fixing seat 3 is pressed into the central grinding wheel 2 by an interference fit, which can provide a strong connection force and ensure that there is no relative displacement between the grinding wheel fixing seat 3 and the central grinding wheel 2 during the operation of the armor grinder. This achieves the stability of the armor grinding operation. Even under high-speed rotation and certain pressure, this tight connection can effectively prevent the central grinding wheel 2 and the grinding wheel fixing seat 3 from separating, improving the reliability of the armor grinder. The press-fit and non-removable design avoids damage to components due to accidental loosening or improper disassembly.

[0034] 3. A grinding wheel fixing seat 3 is provided on one side of the hexagonal copper shaft 6, achieving a very small clearance fit between the hexagonal copper shaft 6 and the grinding wheel fixing seat 3. This ensures both a tight connection and interchangeability. When it is necessary to replace the center grinding wheel 2 or maintain the armor grinder, the hexagonal copper shaft 6 can be easily separated from the grinding wheel fixing seat 3. This interchangeability makes the maintenance and repair of the armor grinder more convenient and reduces operating costs. The clearance needs to be very small, close to zero, to minimize the shaking of the grinding wheel during operation. Stable rotation of the grinding wheel is crucial for the armor grinding effect; a small clearance fit ensures that the grinding wheel remains stable during high-speed rotation.

[0035] Improve the precision and quality of armor grinding.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel grinding wheel assembly with an exhaust structure for armor grinding, comprising a grinding cover (1), a control PCBA (8), a main PCBA board (18), and a 390 motor (7), characterized in that: The grinding cover (1) has a central grinding wheel (2) inside, a grinding wheel fixing seat (3) inside, an LED light PCBA board (4) on one side of the grinding wheel fixing seat (3), a front cover (5) inside the LED light PCBA board (4), a motor wire (21) at the bottom of the 390 motor (7), a right body (22) on one side of the motor wire (21), a spotlight wire (23) on one side of the right body (22), and a lithium battery (17) at the bottom of the main PCBA board (18). The lithium battery (17) has a tail cover (16) on one side, and a screw (15) is provided at the bottom of the tail cover (16). The main PCBA board (18) has a left body (14) on one side, and a body decoration piece (13) is provided on the top of the left body (14). The control PCBA (8) has a rotary switch (12) on the top, and a switch cover (11) is provided on the top of the rotary switch (12). A switch spring (10) is provided on the top of the switch cover (11), and an LED light switch button (9) is provided on the top of the switch cover (11).

2. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 1, characterized in that: The front cover (5) is provided with a hexagonal copper shaft (6) inside, and the hexagonal copper shaft (6) is positioned and connected to the front cover (5).

3. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 2, characterized in that: A 390 motor (7) is provided on one side of the hexagonal copper shaft (6), and the hexagonal copper shaft (6) and the 390 motor (7) are engaged.

4. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 3, characterized in that: The top of the 390 motor (7) is provided with a control PCBA (8), and the 390 motor (7) and the control PCBA (8) are connected by a snap-fit.

5. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 3, characterized in that: The 390 motor (7) has a main PCBA board (18) on one side, and the main PCBA board (18) is electrically connected to the 390 motor (7).

6. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 5, characterized in that: The main PCBA board (18) has a lens (19) on its top, and the main PCBA board (18) and the lens (19) are connected by positioning.

7. The armor grinder with a novel grinding wheel assembly and exhaust structure according to claim 6, characterized in that: The top of the lens (19) is provided with a 5P ribbon cable (20), and the 5P ribbon cable (20) is snapped into the lens (19).

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