Nail trimmer

Abstract

The utility model relates to a fingernail trimmer which comprises an outer shell, a nail clipper body, a nail clipper body, a nail clipper body, a nail clipper body and a nail clipper body. The grinding mechanism comprises a grinding head, a connecting piece and a grinding motor, the grinding motor is arranged in the mounting cavity, the connecting piece is arranged on an output shaft of the grinding motor, the connecting piece is exposed through the first opening, the grinding head is located outside the mounting cavity and located above the connecting piece, and the grinding head is detachably connected with the connecting piece; the connecting piece is used for driving the grinding head to rotate under driving of the grinding motor. According to the nail trimmer, the connecting piece is arranged on the output shaft of the polishing motor and can be connected and separated from the polishing head, the connecting piece and the polishing head can be firmly installed to ensure that the polishing head can be effectively driven to rotate, and when a user applies external force, the connecting piece and the polishing head can be easily separated; therefore, a user can conveniently replace grinding heads with different thicknesses at any time according to needs, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty tools, in particular to a nail trimmer. Background Art

[0002] Trimming nails is an indispensable beauty item in people's daily life. Traditional nail clippers utilize the lever principle. Users cut nails by pressing the end of the pliers forcefully, making the sharp front part cut the nails. Repeating such operations is laborious and troublesome. Thus, electric nail trimmers came into being. Electric nail trimmers generally use an internal motor to drive a cutter head to rotate rapidly through multiple gears to shear nails, and are equipped with a grinding component that can be used for multiple functions such as grinding, exfoliating, and repairing nail surfaces. Compared with traditional scissors and nail clippers, electric nail trimmers are more and more favored by consumers due to advantages such as being easy to use, highly efficient and labor-saving, and novel in shape.

[0003] However, to better meet the different grinding effect requirements of users, electric nail trimmers often need to be provided with multiple grinding components of different thicknesses. Therefore, it is easy to make the device structure complex, and the volume and weight also increase accordingly, causing inconvenience to users. Summary of the Utility Model

[0004] Based on this, in view of the problem that some electric nail trimmers in the prior art are provided with multiple grinding components of different thicknesses, which easily makes the device structure complex, and the volume and weight also increase accordingly, causing inconvenience to users, it is necessary to provide a nail trimmer.

[0005] A nail trimmer includes: a housing body, the housing body is provided with an installation cavity, and a first opening is provided at the top of the installation cavity; a grinding mechanism, the grinding mechanism includes a grinding head, a connecting member, and a grinding motor, the grinding motor is arranged in the installation cavity, the connecting member is arranged on the output shaft of the grinding motor, the connecting member is exposed through the first opening, the grinding head is located outside the installation cavity and above the connecting member, the grinding head is detachably connected to the connecting member, and the connecting member is used to drive the grinding head to rotate under the drive of the grinding motor.

[0006] The present application provides a nail trimmer. A connecting member is arranged on the output shaft of the grinding motor and can be connected and separated from the grinding head. The connecting member and the grinding head can be firmly installed to ensure that the grinding head can be effectively driven to rotate. When an external force is applied by the user, the connecting member and the grinding head can be easily separated. Thus, it is convenient for the user to replace different thickness grinding heads at any time according to needs. The operation is convenient. Compared with the traditional grinding head directly arranged on the grinding motor, it can effectively avoid the wear of the motor output shaft after multiple dismountings, which may lead to the loosening of the cooperation between the grinding head and the grinding motor and affect the use.

[0007] In one embodiment, a jack is provided at one end of the grinding head close to the connecting member, and the connecting member is adaptively inserted into the jack. By adopting the above structure, the jack can form a positioning function, and the grinding head can be quickly connected to the connecting member by aligning the jack with the connecting member and inserting it.

[0008] In one embodiment, a limiting portion is formed inward at one end of the inner peripheral wall of the jack close to the grinding motor, and the side of the limiting portion away from the grinding motor abuts against the connecting member. By adopting the above structure, the limiting portion can further form a limiting and supporting function, effectively ensuring that the grinding head and the connecting member can be firmly installed when connected and are not easily loosened accidentally.

[0009] In one embodiment, an inclined surface is formed on one side of the limiting portion close to the grinding motor. Through the setting of the inclined surface, when the connecting member is inserted into the jack, the vertical thrust of the connecting member is converted into a force that drives the limiting portion to elastically deform and open outward, thereby ensuring that the connecting member is inserted smoothly without jamming.

[0010] In one embodiment, a groove is provided on the peripheral wall of the jack along the axial direction, a limiting rib is provided on the bottom wall of the groove, and the limiting portion is provided on one side of the limiting rib close to the grinding motor. By adopting the above structure, when the limiting portion is pushed by the connecting member, it is easier to drive the limiting rib to elastically deform, making the limiting portion more likely to displace outward, thereby making the operation more labor-saving and more convenient for the user to install, disassemble and replace the grinding head.

[0011] In one embodiment, the number of the limiting portions is multiple, and the multiple limiting portions are arranged at intervals along the circumferential direction of the jack.

[0012] In one embodiment, a clamping groove is formed on the peripheral wall of the jack, a clamping block is formed on the peripheral wall of the connecting member, and the clamping block is clamped in the clamping groove. By respectively forming a matching clamping groove and clamping connection on the peripheral wall of the jack and the peripheral wall of the connecting member, the clamping block can cooperate with the clamping groove to form a limiting function, so that the connecting member can effectively drive the grinding head to rotate when the grinding mechanism works, and the grinding head is prevented from rotating self.

[0013] In one embodiment, the number of the clamping blocks is multiple, the multiple clamping blocks are arranged at intervals along the circumferential direction of the connecting member, and the number of the clamping grooves is the same as that of the clamping blocks and is arranged in one-to-one correspondence.

[0014] In one embodiment, the grinding head includes a nail grinding wheel and a connecting seat, the nail grinding wheel is arranged on the top of the connecting seat, the connecting seat is detachably connected to the connecting member, the connecting seat and / or the connecting member is made of an elastic material, and the connecting seat and the connecting member are in interference fit. Thereby, it can be ensured that the connecting seat and the connecting member can be tightly connected and are not easily loosened.

[0015] In one embodiment, it further includes a nail clipping mechanism. The nail clipping mechanism includes a cutter head and a nail clipping motor. The cutter head and the nail clipping motor are arranged in the installation cavity. The nail clipping motor is in transmission connection with the cutter head to drive the cutter head to rotate. A second opening is provided at the top of the installation cavity, and a part of the cutter head can be exposed through the second opening. By adopting the above structure, a nail clipping motor and a cutter head are arranged in the installation cavity. When the nail clipping motor is started, it can drive the cutter head to rotate. The cutter head is provided with multiple cutting edges. As the cutter head rotates, the cutting edges chip the nails. Thus, the user only needs to insert the nail near the cutter head through the second opening to automatically clip the nails.

[0016] In one embodiment, the nail clipping mechanism further includes a protective shell. The protective shell is arranged in the installation cavity. The protective shell is provided with an installation hole, and the cutter head is rotatably arranged in the installation hole. A third opening communicating with the installation hole is provided on one side of the protective shell facing the second opening to expose the cutter head. By arranging the protective shell to wrap the cutter head, the direct exposure of the cutter head can be reduced, and the risk of the hand being scratched by the cutting edge during assembly can be reduced, so as to facilitate the rapid assembly of the nail clipping mechanism.

[0017] In one embodiment, the third opening and / or the second opening is arc-shaped. By designing the third opening or the second opening to be an arc shape closer to the shape of the nail, the nail can be inserted more conveniently and the horizontal movement of the nail can be restricted to match the nail curvature, making it safer to use.

[0018] In one embodiment, the cross-sectional area of the third opening is smaller than that of the second opening. This can further limit the exposed area of the cutter head and reduce the risks of accidental skin scratches and cutter head damage.

[0019] In one embodiment, the nail clipping mechanism further includes bearings. The number of bearings is two. The two bearings are respectively sleeved on the rotating shafts at the opposite ends of the cutter head, and the outer peripheral walls of the bearings are connected to the inner wall of the installation hole. By arranging the bearings, the cutter head can be stably arranged in the protective shell, and the frictional resistance received during the movement of the cutter head can be reduced, which is beneficial to reducing cutter head wear and noise.

[0020] In one embodiment, the nail clipping mechanism further includes an installation housing. The installation housing is arranged on the outer shell, and at least part of the installation housing is located in the installation cavity. The protective shell is arranged on the installation housing. By arranging the installation housing, a positioning function can be formed, so that the protective shell and the cutter head can be quickly and stably arranged in the installation cavity.

[0021] In one embodiment, the cutter head is spiral-shaped. The spiral cutter head has multiple cutting edges, which can increase the chipping force of the cutter head and improve the cutting efficiency.

[0022] In one embodiment, the nail trimming mechanism further includes a gear assembly. The input end of the gear assembly is in transmission connection with the nail trimming motor, and the output end of the gear assembly is in transmission connection with the cutter head. By adopting a gear assembly, the transmission between any two spatial axes such as parallel axes, intersecting axes, and staggered axes can be realized. Thus, designers can conveniently arrange the cutter head and the nail trimming motor as needed. Moreover, the transmission is accurate, efficient, the structure is compact, and the work is reliable. In addition, using the gear assembly for transmission can also achieve speed reduction, torque increase, and power output direction change.

[0023] In one embodiment, the gear assembly is rotatably arranged on the mounting housing, and the gear assembly is distributed along the height direction.

[0024] In one embodiment, the outer housing includes a first housing and a second housing. The first housing is detachably arranged on the second housing, and the first housing and the second housing enclose to form the mounting cavity and the first opening. By forming the detachable first housing and second housing, it is very convenient for installers to arrange the grinding mechanism and the nail trimming mechanism in the mounting cavity.

[0025] In one embodiment, the outer housing further includes a third housing. The third housing is detachably arranged on the first housing and the second housing. The third housing is provided with a fourth opening, and the fourth opening is arranged opposite to the first opening. By arranging the third housing, it can ensure that the first housing and the second housing are tightly connected and not prone to loosening.

[0026] In one embodiment, it further includes a top cover. The top cover is detachably arranged on the side of the outer housing where the first opening is formed. By arranging the top cover, a protective effect can be formed to reduce the risk of damage to the grinding head due to collision. At the same time, it is beneficial for the grinding head to keep clean and hygienic. Description of the Drawings

[0027] Figure 1 is the first exploded view of a nail trimmer in one embodiment;

[0028] Figure 2 is the sectional view of a nail trimmer in one embodiment;

[0029] Figure 3 is the second exploded view of a nail trimmer in one embodiment;

[0030] Figure 4 is the exploded view of a grinding mechanism in one embodiment;

[0031] Figure 5 is the exploded view of a nail trimming mechanism in one embodiment.

[0032] Among them, the corresponding relationship between the reference signs and the component names is as follows:

[0033] 1 outer housing, 101 installation cavity, 102 first opening, 103 second opening, 104 fourth opening, 11 first housing, 12 second housing, 13 third housing;

[0034] 2 grinding mechanism, 201 jack, 21 grinding head, 211 nail grinding wheel, 212 connecting seat, 2121 limiting part, 2122 limiting rib, 22 connecting piece, 23 grinding motor;

[0035] 3 nail clipping mechanism, 301 third opening, 31 cutter head, 32 nail clipping motor, 33 protective shell, 34 bearing, 35 installation housing, 36 gear assembly;

[0036] 4 top cover. Detailed implementation manners

[0037] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0039] The following describes a nail trimmer according to some embodiments of the present invention with reference to the drawings.

[0040] As Figures 1 to 4 shown, this embodiment discloses a nail trimmer, including: an outer housing 1, the outer housing 1 is provided with an installation cavity 101, and the top of the installation cavity 101 is provided with a first opening 102; a grinding mechanism 2, the grinding mechanism 2 includes a grinding head 21, a connecting piece 22 and a grinding motor 23, the grinding motor 23 is arranged in the installation cavity 101, the connecting piece 22 is arranged on the output shaft of the grinding motor 23, the connecting piece 22 is exposed through the first opening 102, the grinding head 21 is located outside the installation cavity 101 and above the connecting piece 22, and the grinding head 21 is detachably connected to the connecting piece 22, and the connecting piece 22 is used to drive the grinding head 21 to rotate under the drive of the grinding motor 23.

[0041] The present application provides a nail trimmer. A connecting member 22 is provided on the output shaft of the grinding motor 23 and can be connected to and separated from the grinding head 21. The connecting member 22 and the grinding head 21 can be firmly installed to ensure that the grinding head 21 can be effectively driven to rotate. When an external force is applied by the user, the connecting member 22 and the grinding head 21 can be easily separated, so that the user can conveniently replace the grinding heads 21 with different thicknesses at any time according to needs, and the operation is convenient. Compared with the traditional structure where the grinding head 21 is directly arranged on the grinding motor 23, it can effectively avoid the wear of the motor output shaft after multiple disassembly, which may cause the loosening of the cooperation between the grinding head 21 and the grinding motor 23 and affect the use.

[0042] As Figure 2 and Figure 4 shown, in addition to the features of the above embodiments, the present embodiment further defines that: a jack 201 is provided at one end of the grinding head 21 close to the connecting member 22, and the connecting member 22 is adaptively inserted into the jack 201. By adopting the above structure, the jack 201 can form a positioning function, and the grinding head 21 and the connecting member 22 can be quickly connected by aligning the jack 201 with the connecting member 22 and inserting it.

[0043] As Figure 2 and Figure 4 shown, in addition to the features of the above embodiments, the present embodiment further defines that: a limiting portion 2121 is formed on the inner peripheral wall of the jack 201 close to the grinding motor 23 and extends inward. The side of the limiting portion 2121 away from the grinding motor 23 abuts against the connecting member 22. By adopting the above structure, the limiting portion 2121 can further form a limiting and supporting function, effectively ensuring that the grinding head 21 and the connecting member 22 can be firmly installed when connected and are not likely to accidentally become loose.

[0044] As Figure 2 and Figure 4 shown, in addition to the features of the above embodiments, the present embodiment further defines that: a slope is formed on the side of the limiting portion 2121 close to the grinding motor 23. Through the setting of the slope, when the connecting member 22 is inserted into the jack 201, the vertical thrust of the connecting member 22 is converted into a force that drives the limiting portion 2121 to elastically deform and open outward, thereby ensuring that the insertion of the connecting member 22 is smooth without blockage.

[0045] As Figure 4 shown, in addition to the features of the above embodiments, the present embodiment further defines that: a groove is provided on the peripheral wall of the jack 201 in the axial direction, a limiting rib 2122 is provided on the bottom wall of the groove, and the limiting portion 2121 is provided on the side of the limiting rib 2122 close to the grinding motor 23. By adopting the above structure, when the limiting portion 2121 is pushed by the connecting member 22, it is easier to drive the limiting rib 2122 to elastically deform and make the limiting portion 2121 more likely to displace outward, thereby making the operation more labor-saving and more convenient for the user to install, disassemble and replace the grinding head 21.

[0046] As Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that the number of the limiting portions 2121 is multiple, and the multiple limiting portions 2121 are arranged at intervals along the circumferential direction of the jack 201.

[0047] In addition to the features of the above embodiments, this embodiment further defines that a clamping groove is formed in the peripheral wall of the jack 201, a clamping block is formed on the peripheral wall of the connecting member 22, and the clamping block is clamped in the clamping groove. By respectively forming a matching clamping groove and clamping connection on the peripheral wall of the jack 201 and the peripheral wall of the connecting member 22, the clamping block can cooperate with the clamping groove to form a limiting effect, so that when the grinding mechanism 2 works, the connecting member 22 can effectively drive the grinding head 21 to rotate, and the grinding head 21 is prevented from rotating by itself.

[0048] In addition to the features of the above embodiments, this embodiment further defines that the number of the clamping blocks is multiple, the multiple clamping blocks are arranged at intervals along the circumferential direction of the connecting member 22, and the number of the clamping grooves is the same as that of the clamping blocks and is arranged in one-to-one correspondence.

[0049] As Figure 2 and Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that the grinding head 21 includes a nail grinding wheel 211 and a connecting seat 212, the nail grinding wheel 211 is arranged on the top of the connecting seat 212, the connecting seat 212 is detachably connected to the connecting member 22, the connecting seat 212 and / or the connecting member 22 are made of an elastic material, and the connecting seat 212 is in interference fit with the connecting member 22. Thereby, it can be ensured that the connecting seat 212 and the connecting member 22 can be tightly connected and are not easily loosened.

[0050] As Figure 2 、 Figure 3 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that it further includes a nail clipping mechanism 3, the nail clipping mechanism 3 includes a cutter head 31 and a nail clipping motor 32, the cutter head 31 and the nail clipping motor 32 are arranged in the installation cavity 101, the nail clipping motor 32 is in transmission connection with the cutter head 31 to drive the cutter head 31 to rotate, a second opening 103 is provided at the top of the installation cavity 101, and a part of the cutter head 31 can be exposed through the second opening 103. By adopting the above structure, the nail clipping motor 32 and the cutter head 31 are arranged in the installation cavity 101. When the nail clipping motor 32 is started, the cutter head 31 can be driven to rotate. The cutter head 31 is provided with a plurality of blades. As the cutter head 31 rotates, the blades cut the nails. Thus, the user only needs to extend the nail near the cutter head 31 through the second opening 103 to automatically clip the nails.

[0051] As Figure 2 、 Figure 3 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further defines that: the nail clipping mechanism 3 further includes a protective shell 33. The protective shell 33 is disposed in the installation cavity 101. The protective shell 33 is provided with an installation hole, and the cutter head 31 is rotatably disposed in the installation hole. The side of the protective shell 33 facing the second opening 103 is provided with a third opening 301 communicating with the installation hole to expose the cutter head 31. By providing the protective shell 33 to wrap the cutter head 31, the direct exposure of the cutter head 31 can be reduced, and the risk of the hand being scratched by the blade during assembly can be lowered, so as to facilitate the rapid assembly of the nail clipping mechanism 3.

[0052] As Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the third opening 301 and / or the second opening 103 is arc-shaped. By designing the third opening 301 or the second opening 103 to be an arc shape closer to the shape of the nail, the nail can be inserted more conveniently in cooperation with the nail curvature and the horizontal movement of the nail can be restricted, making it safer to use.

[0053] As Figure 1 shown, in addition to the features of the above embodiments, this embodiment further defines that: the cross-sectional area of the third opening 301 is smaller than the cross-sectional area of the second opening 103. Thereby, the exposed area of the cutter head 31 can be further restricted, and the risks of accidental skin scratches and damage to the cutter head 31 can be reduced.

[0054] As Figure 2 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the nail clipping mechanism 3 further includes bearings 34. The number of bearings 34 is two. The two bearings 34 are respectively sleeved on the rotating shafts at the opposite ends of the cutter head 31, and the outer peripheral wall of the bearing 34 is connected to the inner wall of the installation hole. By providing the bearings 34, the cutter head 31 can be stably disposed in the protective shell 33, and the frictional resistance received during the movement of the cutter head 31 can be reduced, which is beneficial to reducing the wear of the cutter head 31 and lowering the noise.

[0055] As Figure 2 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the nail clipping mechanism 3 further includes an installation housing 35. The installation housing 35 is disposed on the outer shell. At least part of the installation housing 35 is located in the installation cavity 101, and the protective shell 33 is disposed on the installation housing 35. By providing the installation housing 35, a positioning function can be formed, so as to facilitate the protective shell 33 and the cutter head 31 to be quickly and stably disposed in the installation cavity 101.

[0056] As Figure 2 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the cutter head 31 is spiral-shaped. The spiral cutter head 31 has multiple cutting edges, which can increase the chip cutting force of the cutter head 31 and the cutting efficiency is higher.

[0057] As Figure 2 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the nail clipping mechanism 3 further includes a gear assembly 36. The input end of the gear assembly 36 is drivingly connected to the nail clipping motor 32, and the output end of the gear assembly 36 is drivingly connected to the cutter head 31. By adopting the gear assembly 36, the transmission between any two spatial axes such as parallel axes, intersecting axes, and staggered axes can be realized. Thus, designers can conveniently arrange the cutter head 31 and the nail clipping motor 32 as needed. Moreover, the transmission is accurate, efficient, the structure is compact, and the work is reliable. In addition, using the gear assembly 36 for transmission can also realize speed reduction, torque increase, and power output direction change.

[0058] As Figure 2 shown, in addition to the features of the above embodiments, this embodiment further defines that: the gear assembly 36 is rotatably arranged on the mounting housing 35, and the gear assembly 36 is distributed along the height direction.

[0059] As Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that: the outer housing 1 includes a first housing 11 and a second housing 12. The first housing 11 is detachably arranged on the second housing 12, and the first housing 11 and the second housing 12 enclose an installation cavity 101 and a first opening 102. By forming the detachable first housing 11 and second housing 12, it is greatly convenient for installers to arrange the grinding mechanism 2 and the nail clipping mechanism 3 in the installation cavity 101.

[0060] As Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that: the outer housing 1 further includes a third housing 13. The third housing 13 is detachably arranged on the first housing 11 and the second housing 12. The third housing 13 is provided with a fourth opening 104, and the fourth opening 104 is arranged opposite to the first opening 102. By providing the third housing 13, it can be ensured that the first housing 11 and the second housing 12 are tightly connected and not prone to loosening.

[0061] As Figure 1 shown, in addition to the features of the above embodiments, this embodiment further defines that: it further includes a top cover 4. The top cover 4 is detachably arranged on the side of the outer housing 1 where the first opening 102 is opened. By providing the top cover 4, a protective effect can be formed to reduce the risk of damage to the grinding head 21 due to collision. At the same time, it is beneficial for the grinding head 21 to keep clean and hygienic.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0063] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A nail trimmer, characterized in that, Comprising: An outer housing (1), the outer housing (1) is provided with an installation cavity (101), and a first opening (102) is provided at the top of the installation cavity (101); A polishing mechanism (2), the polishing mechanism (2) includes a polishing head (21), a connecting member (22) and a polishing motor (23), the polishing motor (23) is disposed in the installation cavity (101), the connecting member (22) is disposed on the output shaft of the polishing motor (23), the connecting member (22) is exposed through the first opening (102), the polishing head (21) is located outside the installation cavity (101) and above the connecting member (22), the polishing head (21) is detachably connected to the connecting member (22), and the connecting member (22) is used to drive the polishing head (21) to rotate under the drive of the polishing motor (23).

2. The nail trimmer according to claim 1, characterized in that, One end of the polishing head (21) close to the connecting member (22) is provided with a jack (201), and the connecting member (22) is adaptively inserted into the jack (201).

3. The nail trimmer according to claim 2, characterized in that, An inner peripheral wall of the jack (201) forms a limiting portion (2121) inwardly near the polishing motor (23), and one side of the limiting portion (2121) away from the polishing motor (23) abuts against the connecting member (22).

4. The nail trimmer according to claim 3, wherein One side of the limiting portion (2121) close to the polishing motor (23) forms an inclined surface; and / or A groove is provided on the peripheral wall of the jack (201) in the axial direction, a limiting rib (2122) is provided on the bottom wall of the groove, and the limiting portion (2121) is provided on one side of the limiting rib (2122) close to the polishing motor (23); and / or The number of the limiting portions (2121) is multiple, and the multiple limiting portions (2121) are arranged at intervals in the circumferential direction of the jack (201).

5. The nail trimmer according to claim 2, wherein A clamping groove is provided on the peripheral wall of the jack (201), a clamping block is formed on the peripheral wall of the connecting member (22), and the clamping block is clamped in the clamping groove; and / or The polishing head (21) includes a nail grinding wheel (211) and a connecting seat (212), the nail grinding wheel (211) is disposed on the top of the connecting seat (212), the connecting seat (212) is detachably connected to the connecting member (22), the connecting seat (212) and / or the connecting member (22) is made of an elastic material, and the connecting seat (212) is in interference fit with the connecting member (22).

6. The nail trimmer according to claim 1, characterized in that, It further includes a nail cutting mechanism (3), the nail cutting mechanism (3) includes a cutter head (31) and a nail cutting motor (32), the cutter head (31) and the nail cutting motor (32) are disposed in the installation cavity (101), the nail cutting motor (32) is in transmission connection with the cutter head (31) to drive the cutter head (31) to rotate, a second opening (103) is provided at the top of the installation cavity (101), and a part of the cutter head (31) can be exposed through the second opening (103).

7. The nail trimmer according to claim 6, wherein, The nail clipping mechanism (3) further includes a protective shell (33). The protective shell (33) is disposed in the installation cavity (101). The protective shell (33) is provided with an installation hole, and the cutter head (31) is rotatably disposed in the installation hole. A third opening (301) communicating with the installation hole is provided on one side of the protective shell (33) facing the second opening (103) to expose the cutter head (31).

8. The nail trimmer according to claim 7, wherein the third opening (301) and / or the second opening (103) is arc-shaped; and / or the cross-sectional area of the third opening (301) is smaller than the cross-sectional area of the second opening (103); and / or the nail clipping mechanism (3) further includes bearings (34). The number of the bearings (34) is two. The two bearings (34) are respectively sleeved on the rotating shafts at opposite ends of the cutter head (31), and the outer peripheral walls of the bearings (34) are connected to the inner wall of the installation hole; and / or the nail clipping mechanism (3) further includes an installation housing (35). The installation housing (35) is disposed on the outer shell. At least a part of the installation housing (35) is located in the installation cavity (101), and the protective shell (33) is disposed on the installation housing (35).

9. The nail trimmer according to claim 6, wherein the cutter head (31) is spiral; and / or the nail clipping mechanism (3) further includes a gear assembly (36). The input end of the gear assembly (36) is in transmission connection with the nail clipping motor (32), and the output end of the gear assembly (36) is in transmission connection with the cutter head (31).

10. The nail trimmer according to any one of claims 1 to 9, wherein the outer shell (1) includes a first shell (11) and a second shell (12). The first shell (11) is detachably disposed on the second shell (12). The first shell (11) and the second shell (12) enclose to form the installation cavity (101) and the first opening (102); and / or it further includes a top cover (4). The top cover (4) is detachably disposed on one side of the outer shell (1) where the first opening (102) is provided.

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