Rotary manicure polishing pen
By simplifying the design of the rotating components, the problems of complex structure and inconvenient operation of rotary grinding heads are solved, achieving low-cost production and reliable grinding head clamping effect, and facilitating the replacement of damaged grinding heads.
Patent Information
- Application Number
- CN202520062172.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-12
AI Technical Summary
Existing rotary grinding heads have complex structures, are inconvenient to operate, and have high production costs.
The design employs a simplified rotating component, including a rotating outer sleeve, an inner rotating sleeve, a rotating cam, and a connecting shaft. The rotating outer sleeve drives the inner rotating sleeve to push the rotating cam, achieving reliable clamping and loosening of the grinding head. Combined with a limit block and a return spring, the operation process is simplified.
It has a simple structure and is easy to operate, which reduces production costs. It also has reliable clamping and can be easily replaced when the grinding head is damaged.
Smart Images
Figure CN223817108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nail filing machines, specifically a rotary nail filing pen. Background Technology
[0002] A nail file is a device used to shape nails. The high-speed rotating file head shapes the nails into a desired form. The file head will wear down after a period of use and needs to be replaced. To avoid injuring the fingers, different files are needed for different areas of the nail.
[0003] Existing grinding heads generally adopt two types: rotary or push-in. The most common type is rotary. However, the existing rotary structure with internal chuck shaft is relatively complex and inconvenient to operate, resulting in high production costs. Therefore, it needs to be improved. Utility Model Content
[0004] The purpose of this invention is to provide a rotary nail polishing pen to solve the problems mentioned in the background art, such as complex structure, inconvenient operation, and high production cost of existing rotary polishing heads.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary nail polishing pen, comprising a polishing body, a motor body, and a rotating assembly. The polishing body includes a polishing head, a polishing head housing, a chuck, an inner fixing sleeve, and a main shaft clamping bushing. The main shaft clamping bushing is disposed inside the polishing head housing. The chuck is inserted into the inner side of the main shaft clamping bushing, and the polishing head is inserted into one end of the chuck. The inner fixing sleeve is connected to the main shaft clamping bushing. The rotating assembly includes a rotating outer sleeve, a main unit fixing sleeve, a rotating cam, and a connecting shaft. A rotating mechanism that rotates with the rotating outer sleeve is fixed inside the rotating outer sleeve. The inner rotating sleeve has a rotating cam inside that can be pushed back and forth after rotation. The rotating cam is sleeved outside the connecting shaft, and a pressure ring, a bearing, and a pressure block are sequentially abutted between one end of the rotating cam and one end face of the inner fixed sleeve. One end of the connecting shaft is detachably connected to the motor body, and the other end of the connecting shaft is inserted into the other end of the chuck. When the outer rotating sleeve rotates to one side, it synchronously drives the inner rotating sleeve to rotate, thereby pushing the rotating cam forward and sequentially pushing the pressure ring, the bearing, the pressure block, and the chuck forward to clamp the main shaft of the grinding head. When the outer rotating sleeve rotates to the other side, it releases the main shaft of the grinding head.
[0006] Preferably, for ease of operation, two limiting blocks are symmetrically arranged on the inner side of the inner rotating sleeve. The rotating cam includes a cam sleeve fitted outside the connecting shaft. Two wave-shaped cam portions are symmetrically arranged on the cam sleeve. The end face of the limiting block is provided with an arc-shaped surface that abuts against the protrusion of the cam portion after rotation.
[0007] Preferably, for limiting the position, the main unit fixing sleeve is provided with two symmetrical limiting through holes, and the cam part is locked in the limiting through holes.
[0008] Preferably, the other end face of the inner fixing sleeve is fitted with a bearing two that is sleeved on the outside of the main shaft clamping bushing.
[0009] Preferably, in order to achieve an anti-slip effect, the outer surface of the grinding head housing is covered with one or more arc-shaped grooves.
[0010] Preferably, in order to achieve an anti-slip effect, the rotating outer sleeve is provided with one or more arc-shaped grooves in a ring.
[0011] Preferably, a return spring is provided between the chuck and the spindle clamping bushing for easy reset.
[0012] Compared with the prior art, the advantages of this utility model are: the whole structure is relatively simple and easy to operate, and each component is relatively simple, thus reducing the production cost. At the same time, the clamping is more reliable. Secondly, since the motor body at the rear and the grinding main component of this structure can be disassembled, if the grinding head falls to the ground and is damaged, the grinding main component can be easily replaced. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a rotary nail polishing pen in Embodiment 1.
[0014] Figure 2 for Figure 1 A cross-sectional view along the AA direction;
[0015] Figure 3 This is a front structural diagram of a rotary nail polishing pen in Embodiment 1.
[0016] Figure 4 for Figure 3 Cross-sectional view along the BB direction;
[0017] Figure 5 This is a schematic diagram of the structure of a rotary nail polishing pen in Example 1 without the main unit fixing sleeve and the inner rotating sleeve;
[0018] Figure 6 This is a schematic diagram of the rotating cam in Example 1;
[0019] Figure 7 This is a schematic diagram of the main unit fixing sleeve in Example 1;
[0020] Figure 8 This is a schematic diagram of the chuck structure in Example 1;
[0021] Figure 9 This is a schematic diagram of the inner rotating sleeve in Example 1.
[0022] In the diagram: Grinding body 1, rotating assembly 2, grinding head 101, spindle 1011, grinding head housing 102, chuck 103, inner fixing sleeve 104, spindle clamping bushing 105, return spring 106, rotating outer sleeve 201, main unit fixing sleeve 202, limiting through hole 2021, rotating cam 203, camshaft sleeve 2031, cam part 2032, connecting shaft 204, pressure ring 205, bearing one 206, pressure block 207, inner rotating sleeve 208, limiting block 2081, arc surface 2082, bearing two 3, arc groove one 4, arc groove two 5, motor body 6. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0024] Please see Figures 1-9This embodiment discloses a rotary nail polishing pen, including a polishing body 1, a motor body 6, and a rotating assembly 2. It should be noted that the motor body 6 is prior art and generally includes a motor housing, a motor motor, a battery, and a motor controller. The motor controller, battery, and motor motor are fixed inside the motor housing, and the motor controller is electrically connected to the motor motor and battery. The polishing body 1 includes a polishing head 101, a polishing head housing 102, a chuck 103, an inner fixing sleeve 104, and a main shaft clamping bushing 105. The grinding head housing 102 is provided with the spindle clamping bushing 105. The chuck 103 is inserted into the inner side of the spindle clamping bushing 105. One end of the chuck 103 is inserted into the grinding head 101. The spindle clamping bushing 105 is connected to the inner fixing sleeve 104. The rotating assembly 2 includes a rotating outer sleeve 201, a main unit fixing sleeve 202, a rotating cam 203, and a connecting shaft 204. An inner rotating sleeve 208 that rotates with the rotating outer sleeve 201 is fixed inside the rotating outer sleeve 201. In this embodiment, the rotating outer sleeve 208... 01 is integrated with the inner rotating sleeve 208. The inner rotating sleeve 208 contains a rotating cam 203 that can move back and forth after rotation. The rotating cam 203 is sleeved around the connecting shaft 204, and a pressure ring 205, a bearing 206, and a pressure block 207 are sequentially abutted between one end of the rotating cam 203 and one end face of the inner fixed sleeve 104. One end of the connecting shaft 204 is detachably connected to the output shaft of the motor inside the motor body 6. In this embodiment, one end of the connecting shaft 204 is inserted into the motor shaft on the motor body 6. The other end is inserted into the other end of the chuck 103. When the rotating outer sleeve 201 rotates to one side, it synchronously drives the inner rotating sleeve 208 to rotate, thereby pushing the rotating cam 203 to move forward, and sequentially pushing the pressure ring 205, bearing 1 206, pressure block 207 and chuck 103 to move forward to clamp the main shaft 1011 of the grinding head 101. When the rotating outer sleeve 201 rotates to the other side, it releases the main shaft 1011 of the grinding head 101. Preferably, the other end face of the inner fixed sleeve 104 is abutted by a bearing 2 3 that is sleeved on the outside of the main shaft clamping bushing 105.
[0025] Preferably, in order to facilitate reset, a reset spring 106 is provided between the chuck 103 and the spindle clamping bushing 105. By providing a reset spring 106, this structure ensures that there is a certain elastic force between the chuck 103 and the spindle clamping bushing 105, the interaction force between the two is stronger, and it is also convenient for subsequent disassembly and quick reset under the action of the spring.
[0026] Preferably, for ease of operation, two limiting blocks 2081 are symmetrically arranged on the inner side of the inner rotating sleeve 208. The rotating cam 203 includes a camshaft sleeve 2031 fitted over the connecting shaft 204. Two wave-shaped cam portions 2032 are symmetrically arranged on the camshaft sleeve 2031. The end face of the limiting block 2081 is provided with an arc-shaped surface 2082 that abuts against the protrusion of the cam portion 2032 after rotation. In this structure, when the rotating outer sleeve 201 rotates, causing the inner rotating sleeve 208 to rotate synchronously, the limiting block 2081 also rotates synchronously. During the rotation, the arc-shaped surface 2082 on the limiting block 2081 will rotate from the concave surface to the convex surface of the cam portion 2032, which will push the entire rotating cam 203 forward. Simultaneously, when the entire host is fixed... When sleeve 202 moves forward, it sequentially pushes pressure ring 205, bearing 206, and pressure block 207, ultimately causing the spindle clamping bushing 105 and chuck 103 to clamp together, locking the spindle 1011 of grinding head 101 and achieving a locking effect. When the outer sleeve 201 is rotated in the opposite direction, the inner rotating sleeve 208 rotates synchronously, and the limiting block 2081 also rotates synchronously. During the rotation, the arc-shaped surface 2082 on the limiting block 2081 will rotate from the convex surface of the cam part 2032 to the concave surface. At this time, the rotating cam 203 moves backward under the action of the return spring 106 to reset, thereby releasing the clamping action and creating a gap between the spindle clamping bushing 105 and chuck 103 to release the grinding head 101, achieving the effect of releasing and taking it out.
[0027] Preferably, for limiting the position, the main unit fixing sleeve 202 is provided with two symmetrical limiting through holes 2021, and the cam part 2032 is engaged in the limiting through holes 2021.
[0028] Preferably, to achieve an anti-slip effect, the outer surface of the grinding head housing 102 is covered with one or more arc-shaped grooves 4, and the rotating outer sleeve 201 is provided with one or more arc-shaped grooves 5 in a ring. In this embodiment, by adding arc-shaped grooves 4 to the outer surface of the grinding head housing 102, the surface of the grinding head housing 102 becomes uneven, which can play an anti-slip role when gripped. At the same time, the multiple arc-shaped grooves 5 on the outer surface of the rotating outer sleeve 201 also increase the friction when gripping the rotating outer sleeve 201, further playing an anti-slip role.
[0029] The specific working principle of this structure is as follows: When the rotating outer sleeve 201 rotates, it drives the inner rotating sleeve 208 to rotate synchronously. The inner rotating sleeve 208 pushes the rotating cam 203 to move forward, and simultaneously the entire main unit fixing sleeve 202 moves forward. At this time, the pressure ring 205, bearing 206, and pressure block 207 are pushed in sequence, ultimately causing the main shaft clamping bushing 105 to press against the chuck 103, thereby locking the main shaft 1011 of the grinding head 101 and achieving a locking effect. This achieves the clamping of the grinding head 101. When the rotating outer sleeve 201 is twisted in the opposite direction again, the inner rotating sleeve 208... When the 8-axis rotates synchronously, the rotating cam 203 moves backward under the action of the return spring 106 to reset, thereby releasing the clamping action and creating a gap between the shaft clamping bushing 105 and the chuck 103 to release the grinding head 101, achieving the effect of releasing and taking it out. Therefore, the whole structure is relatively simple and easy to operate. Moreover, each component is relatively simple, thus reducing the production cost. At the same time, the clamping is more reliable. Secondly, since the motor body at the rear and the grinding main component of this structure can be disassembled, if the grinding head falls to the ground and is damaged, the grinding main component can be easily replaced.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rotary nail polishing pen, comprising a polishing body (1), a motor body (6), and a rotating assembly (2), wherein the polishing body (1) comprises a polishing head (101), a polishing head housing (102), a chuck (103), an inner fixing sleeve (104), and a main shaft clamping bushing (105), characterized in that: The rotating assembly (2) includes a rotating outer sleeve (201), a main unit fixing sleeve (202), a rotating cam (203), and a connecting shaft (204). An inner rotating sleeve (208) is fixed inside the rotating outer sleeve (201) and rotates with the rotating outer sleeve (201). A rotating cam (203) is provided inside the inner rotating sleeve (208) and can be pushed back and forth after rotation. The rotating cam (203) is sleeved outside the connecting shaft (204), and a pressure ring (205), a bearing (206), and a pressure block (207) are sequentially abutted between one end of the rotating cam (203) and one end face of the inner fixing sleeve (104). One end of the connecting shaft (204) is detachably connected to the motor body (6), and the other end of the connecting shaft (204) is inserted into the other end of the chuck (103).
2. The rotary nail polishing pen according to claim 1, characterized in that: The grinding head housing (102) is provided with the spindle clamping bushing (105), the chuck (103) is inserted into the inner side of the spindle clamping bushing (105), the grinding head (101) is inserted into one end of the chuck (103), the inner fixed sleeve (104) is connected to the spindle clamping bushing (105), two limiting blocks (2081) are symmetrically arranged on the inner side of the inner rotating sleeve (208), the rotating cam (203) includes a camshaft sleeve (2031) sleeved outside the connecting shaft (204), two wave-shaped cam portions (2032) are symmetrically arranged on the camshaft sleeve (2031), and the end face of the limiting block (2081) is provided with an arc-shaped surface (2082) that abuts against the protrusion of the cam portion (2032) after rotation.
3. The rotary nail polishing pen according to claim 2, characterized in that: The main unit fixing sleeve (202) is provided with two symmetrical limiting through holes (2021), and the cam part (2032) is locked in the limiting through holes (2021).
4. A rotary nail polishing pen according to claim 1, 2, or 3, characterized in that: The other end face of the inner fixed sleeve (104) is abutted by a bearing 2 (3) that is sleeved on the outside of the main shaft clamping bushing (105).
5. A rotary nail polishing pen according to claim 1, 2, or 3, characterized in that: The outer surface of the grinding head housing (102) is covered with one or more arc-shaped grooves (4).
6. A rotary nail polishing pen according to claim 1, 2, or 3, characterized in that: The rotating outer sleeve (201) is provided with one or more arc-shaped grooves (5) in a ring.
7. A rotary nail polishing pen according to claim 1, 2, or 3, characterized in that: A return spring (106) is provided between the chuck (103) and the spindle clamping bushing (105).