Novel nail grinding device

Abstract

The utility model relates to a novel nail grinding device which comprises a machine shell and further comprises a driver, a fan and a grinding head which are arranged in the machine shell. An eccentric transmission assembly for converting eccentric circular motion into linear reciprocating motion is arranged between the fan and the grinding head; the output end of the driver is in transmission connection with the fan; the grinding head is in transmission connection with the fan through the eccentric transmission assembly; the output end of the driver drives the fan to rotate, the fan drives the grinding head to do linear reciprocating motion through the eccentric transmission assembly, and grinding dust generated in the nail grinding work process of the grinding head is stored in the machine shell under the suction effect of the fan. The driver drives the fan, the top end of the fan drives the grinding head to reciprocate through the eccentric transmission assembly, the nail grinding function is achieved, the double-face nail grinding effect is further achieved, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of nail grinding, in particular to a novel nail grinding device. Background Art

[0002] Existing nail grinders are usually rotary grinding devices with only a single-sided nail grinding structure, which cannot achieve fine grinding and coarse grinding. For example, Chinese Patent No. ZL202011565699.8 discloses a nail grinder, which includes a shell, the shell is provided with a cavity and a through hole connected to the cavity; a nail grinding component, the nail grinding component is provided with a grinding head, and the grinding head is passed through the through hole; and a driving component, the driving component is provided in the cavity, and the driving component is connected to the nail grinding component to drive the grinding head to rotate. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of nail grinding device, which can achieve a double-sided nail grinding effect by changing the rotating grinding head into a linear reciprocating motion to grind the nails, with a fine nail grinding surface and a coarse nail grinding surface to meet the needs of users.

[0004] The purpose of this utility model is achieved in this way:

[0005] A new nail grinding device includes a housing, a driver, a fan and a grinding head arranged in the housing;

[0006] An eccentric transmission assembly for converting eccentric circular motion into linear reciprocating motion is provided between the fan and the grinding head;

[0007] The output end of the driver is connected to the fan transmission, and the grinding head is connected to the fan transmission through an eccentric transmission assembly;

[0008] The output end of the driver drives the fan to rotate, and the fan drives the grinding head to perform linear reciprocating motion through the eccentric transmission assembly. The grinding chips generated by the grinding head during the nail grinding process are stored in the casing under the suction action of the fan.

[0009] The fan is driven by the driver, and the top of the fan drives the grinding head to reciprocate through the eccentric transmission assembly to realize the nail grinding function, further achieving a double-sided nail grinding effect to meet user needs.

[0010] The housing includes a bottom cover which is detachably mounted on the housing. The bottom cover is provided with a collecting chamber, the grinding head is located above the fan, and the collecting chamber of the bottom cover is located below the fan.

[0011] The fan drives the air flow above the air flow grinding head into the collection chamber below, forming a negative pressure above the grinding head so that the grinding chips are stored in the collection chamber below under the suction action of the fan.

[0012] The bottom cover for collecting grinding debris is detachably mounted on the casing, making it easy for users to disassemble and clean the bottom cover on the casing.

[0013] The fan rotates and blows air toward the collection chamber below. The air flows to the outside through the gap in the bottom cover, and at the same time, negative pressure is formed at the grinding head position above the fan, which can suck down the dust ground by the grinding head and store it in the collection chamber in the bottom cover.

[0014] The housing is provided with a suction channel, which includes a bottom cover for storing grinding debris. The suction channel has an air inlet connected to the outside air, and the bottom cover has an exhaust port connected to the outside air and the suction channel. Under the action of the fan, grinding debris follows the airflow along the suction channel into the bottom cover, and the airflow is discharged outside the bottom cover through the exhaust port. The bottom cover is provided with a gap forming the exhaust port to prevent dust from being discharged with the airflow.

[0015] The housing includes an upper cover, which covers the grinding head. The upper cover is provided with a nail grinding groove which is connected to the outside air and is arranged corresponding to the nail grinding surface of the grinding head. The nail grinding groove serves as the air inlet end of the suction channel.

[0016] The nail grinding grooves include a fine nail grinding groove provided on one side of the upper cover, and a coarse nail grinding groove provided on the other side of the upper cover;

[0017] One side of the grinding head is provided with a fine grinding surface, and the other side of the grinding head is provided with a coarse grinding surface. The fine grinding surface is arranged correspondingly to the fine grinding groove, and the coarse grinding surface is arranged correspondingly to the coarse grinding groove.

[0018] The grinding head is provided with nail grinding surfaces with different roughness on both sides through mechanical processing to form a coarse nail grinding surface and a fine nail grinding surface.

[0019] Users can choose the corresponding nail grinding groove and nail grinding surface according to their own needs.

[0020] The eccentric transmission assembly includes an eccentric transmission shaft arranged on the fan, and a connecting piece arranged in the casing for linear reciprocating motion. The eccentric transmission shaft is connected to the connecting piece, and the grinding head is provided with a connecting shaft connected to the connecting piece.

[0021] The connecting piece is provided with an arc-shaped protrusion at the position where it slides with the inner side of the casing. The connecting piece forms point contact, line contact or surface contact with the inner side of the casing through the arc-shaped protrusion, reducing the contact area between the connecting piece and the inside of the casing, thereby reducing the friction resistance of the reciprocating sliding of the connecting piece.

[0022] An upper cover bracket and a supporting part are provided in the casing, and the upper cover bracket and the connecting piece are supported on the supporting part. Two spaced-apart limit blocks are provided on the supporting part, and a limit groove is provided on the upper cover bracket. The connecting piece is limitedly installed between the two limit blocks, and one end of the connecting piece is inserted into the limit groove and is connected to the grinding head transmission. During the rotation of the fan, the connecting piece is limited and slides back and forth in the limit groove and drives the grinding head to move.

[0023] The housing comprises a left housing and a right housing, wherein a mounting cavity for mounting a driver, a fan and a grinding head is formed between the left housing and the right housing;

[0024] The housing further comprises a lower cover bracket, the lower cover bracket being provided with a battery compartment, the battery compartment being provided with a power module for driving the drive, the battery compartment being provided with a switch cover, the switch cover being detachably mounted on the battery compartment so as to detachably mount the power module on the battery compartment;

[0025] The power module is a battery. By adopting the battery as power supply, the user can also perform nail polishing outdoors.

[0026] The casing includes a bottom cover that covers the battery compartment of the lower cover bracket. The bottom cover is provided with an avoidance opening corresponding to the switch cover. The switch cover extends out of the avoidance opening of the bottom cover. The bottom cover is detachably connected to the lower cover bracket, which facilitates the removal and installation of the switch cover of the battery compartment from the bottom of the bottom cover to replace and install the battery.

[0027] The beneficial effects of the utility model are as follows:

[0028] By replacing the rotating grinding head with a linear reciprocating motion for nail polishing, it achieves a dual-sided polishing effect, with both a fine and a coarse polishing side, meeting user needs. By using a battery to power the driver, the nail polisher eliminates the need for a power cord, allowing users to polish their nails outdoors. A clearance opening on the bottom cover, corresponding to the switch cover, allows for easy removal of the battery compartment switch cover from the bottom of the bottom cover for battery replacement and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a nail grinder according to one embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the assembly and decomposition structure of a nail grinder according to one embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of a nail grinder according to one embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of the exploded structure of the grinding head and driver assembly according to one embodiment of the present invention.

[0033] Figure 5 This is a schematic diagram of the exploded structure of the grinding head, eccentric transmission assembly and fan assembly according to one embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the upper cover of an embodiment of the present utility model.

[0035] Figure 7 This is a schematic diagram of the three-dimensional structure of a grinding head according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] See also Figure 1-Figure 7 A novel nail grinding device includes a housing 1, a driver 2, a fan 3 and a grinding head 4 arranged in the housing 1;

[0038] An eccentric transmission assembly 5 for converting eccentric circular motion into linear reciprocating motion is provided between the fan 3 and the grinding head 4;

[0039] The output end of the driver 2 is connected to the fan 3 through transmission, and the grinding head 4 is connected to the fan 3 through an eccentric transmission assembly 5;

[0040] The output end of the driver 2 drives the fan 3 to rotate, and the fan 3 drives the grinding head 4 to perform linear reciprocating motion through the eccentric transmission assembly 5. The grinding chips generated by the grinding head 4 during the nail grinding process are stored in the housing 1 under the suction action of the fan 3.

[0041] The housing 1 includes a bottom cover 6, which is detachably mounted on the housing 1. The bottom cover 6 is provided with a collecting chamber 7. The grinding head 4 is located above the fan 3, and the collecting chamber 7 of the bottom cover 6 is located below the fan 3.

[0042] The fan 3 drives the air flow above the air flow grinding head 4 into the collecting chamber 7 below, forming a negative pressure above the grinding head 4 so that the grinding chips are stored in the collecting chamber 7 below under the suction action of the fan 3.

[0043] A suction channel 9 is provided in the casing 1, and the casing 1 includes a bottom cover 6 for storing grinding chips. The air inlet end of the suction channel 9 is connected to the outside air, and the bottom cover 6 is provided with an exhaust end 10 connecting the outside air and the suction channel 9; under the suction action of the fan 3, the grinding chips follow the airflow along the suction channel 9 into the bottom cover 6, and the airflow is discharged from the bottom cover 6 along the exhaust end 10.

[0044] The housing 1 includes an upper cover 8 , which covers the grinding head 4 . The upper cover 8 is provided with a nail grinding groove connected to the outside air and arranged corresponding to the nail grinding surface of the grinding head 4 . The nail grinding groove serves as the air inlet end of the suction channel 9 .

[0045] The nail grinding grooves include a fine nail grinding groove 11 provided on one side of the upper cover 8 and a coarse nail grinding groove 12 provided on the other side of the upper cover 8;

[0046] In this embodiment, the grinding head 4 forms a ladder-shaped three-dimensional structure and is provided with a double-sided nail grinding structure.

[0047] One side of the grinding head 4 is provided with a fine grinding surface 13 , and the other side of the grinding head 4 is provided with a coarse grinding surface 14 . The fine grinding surface 13 is arranged corresponding to the fine grinding groove 11 , and the coarse grinding surface 14 is arranged corresponding to the coarse grinding groove 12 .

[0048] The eccentric transmission assembly 5 includes an eccentric transmission shaft 15 arranged on the fan 3, and a connecting member 16 arranged in the housing 1 for linear reciprocating motion. The eccentric transmission shaft 15 is connected to the connecting member 16, and the grinding head 4 is provided with a connecting shaft 17 connected to the connecting member 16.

[0049] In this embodiment, a square transmission hole for inserting the connecting shaft 17 is provided on the top of the connecting member 16 , and a flat hole (D-shaped hole) for inserting the eccentric transmission shaft 15 is provided on the bottom of the connecting member 16 .

[0050] The connecting member 16 is provided with an arc-shaped protrusion 18 at a position corresponding to the sliding fit with the inner side of the housing 1 , and the connecting member 16 forms point contact, line contact or surface contact with the inner side of the housing 1 through the arc-shaped protrusion 18 .

[0051] An upper cover bracket 19 and a supporting portion 20 are provided in the casing 1. The upper cover bracket 19 and the connecting member 16 are supported on the supporting portion 20. Two spaced-apart limit blocks 21 are provided on the supporting portion 20. A limit groove 22 is provided on the upper cover bracket 19. The connecting member 16 is limitedly installed between the two limit blocks 21, and one end of the connecting member 16 is inserted into the limit groove 22 and is transmission-connected to the grinding head 4. During the rotation of the fan 3, the connecting member 16 is limitedly slid back and forth in the limit groove 22 and drives the grinding head 4 to move.

[0052] The housing 1 includes a left housing 23 and a right housing 24 , wherein a mounting cavity for mounting the driver 2 , the fan 3 and the grinding head 4 is formed between the left housing 23 and the right housing 24 ;

[0053] The housing 1 further includes a lower cover bracket 25, which is provided with a battery compartment 26. The battery compartment 26 is provided with a power module 27 for the driver 2 to move. The battery compartment 26 is provided with a switch cover 28. The switch cover 28 is detachably mounted on the battery compartment 26 to detachably mount the power module 27 on the battery compartment 26.

[0054] The power module 27 is a battery.

[0055] The housing 1 includes a bottom cover 6 covering a lower cover bracket 25 and a battery compartment 26 . The bottom cover 6 has an escape opening 29 corresponding to the switch cover 28 . The switch cover 28 extends out of the escape opening 29 of the bottom cover 6 . The bottom cover 6 is detachably connected to the lower cover bracket 25 .

[0056] In this embodiment, the switch cover 28 can be detachably mounted on the battery compartment 26 by means of threads or snaps.

[0057] In this embodiment, a buckle and a buckle hole are provided between the left shell 23 and the right shell 24. When the buckle and the buckle hole are engaged, the left shell 23 and the right shell 24 are fixedly connected. When the buckle and the buckle hole are separated, the left shell 23 and the right shell 24 are disassembled and separated, which is convenient for opening the inside of the nail grinder and disassembling and replacing the driver 2 later.

[0058] In this embodiment, the driver 2 is a motor, and a protective cover 30 covering the motor shell is provided in the casing 1. The motor limiter is installed in the protective cover 30. Positioning blocks positioned on the inner side of the casing 1 are provided on both sides of the protective cover 30 to prevent the motor from moving left and right in the casing 1 during operation.

[0059] In this embodiment, the driving shaft of the driver 2 passes through the protective cover 30 and is inserted into the fan 3 .

[0060] In this embodiment, the lower cover bracket 25 is fixed to the bottom of the left shell 23 and the right shell 24 by snapping.

[0061] In this embodiment, the lower cover bracket 25 and the bottom cover 6 are fixedly connected by a threaded detachable connection.

[0062] In this embodiment, a chip drop opening 31 is provided on the upper cover bracket 19 to connect the suction channel 9 and the collecting chamber 7 of the bottom cover 6 .

[0063] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A new nail grinder, comprising a housing (1), characterized in that: It also includes a driver (2), a fan (3) and a grinding head (4) arranged in the housing (1); An eccentric transmission assembly (5) for converting eccentric circular motion into linear reciprocating motion is provided between the fan (3) and the grinding head (4); The output end of the driver (2) is connected to the fan (3) in a transmission manner, and the grinding head (4) is connected to the fan (3) in a transmission manner via an eccentric transmission assembly (5); The output end of the driver (2) drives the fan (3) to rotate, and the fan (3) drives the grinding head (4) to perform linear reciprocating motion through the eccentric transmission assembly (5). Grinding chips generated by the grinding head (4) during the nail grinding process are stored in the housing (1) under the suction action of the fan (3).

2. The new nail grinder according to claim 1, characterized in that: The housing (1) includes a bottom cover (6), which is detachably mounted on the housing (1). The bottom cover (6) is provided with a collecting chamber (7), the grinding head (4) is located above the fan (3), and the collecting chamber (7) of the bottom cover (6) is located below the fan (3); The fan (3) drives the air flow above the airflow grinding head (4) into the collection chamber (7) below, forming a negative pressure above the grinding head (4) so ​​that the grinding chips are stored in the collection chamber (7) below under the suction action of the fan (3).

3. The new nail grinder according to claim 1, characterized in that: The housing (1) is provided with a suction channel (9), and the housing (1) includes a bottom cover (6) for storing grinding chips. The air inlet end of the suction channel (9) is connected to the outside air, and the bottom cover (6) is provided with an exhaust end (10) that connects the outside air and the suction channel (9); the grinding chips follow the air flow along the suction channel (9) under the suction action of the fan (3) and enter the bottom cover (6), and the air flow is discharged from the bottom cover (6) along the exhaust end (10).

4. The new nail grinder according to claim 3, characterized in that: The housing (1) includes an upper cover (8), which covers the grinding head (4). The upper cover (8) is provided with a nail grinding groove connected to the outside air and arranged corresponding to the nail grinding surface of the grinding head (4). The nail grinding groove serves as an air inlet end of the suction channel (9).

5. The new nail grinder according to claim 4, characterized in that: The nail grinding groove comprises a fine nail grinding groove (11) provided on one side of the upper cover (8), and a coarse nail grinding groove (12) provided on the other side of the upper cover (8); One side of the grinding head (4) is provided with a fine nail grinding surface (13), and the other side of the grinding head (4) is provided with a coarse nail grinding surface (14). The fine nail grinding surface (13) is arranged correspondingly to the fine nail grinding groove (11), and the coarse nail grinding surface (14) is arranged correspondingly to the coarse nail grinding groove (12).

6. The new nail grinder according to claim 1, characterized in that: The eccentric transmission assembly (5) includes an eccentric transmission shaft (15) arranged on the fan (3), and a connecting member (16) arranged in a linear reciprocating motion in the housing (1), the eccentric transmission shaft (15) is connected to the connecting member (16), and the grinding head (4) is provided with a connecting shaft (17) connected to the connecting member (16).

7. The new nail grinder according to claim 6, characterized in that: The connecting member (16) is provided with an arc-shaped protrusion (18) at a position where it slides with the inner side of the housing (1), and the connecting member (16) forms point contact, line contact or surface contact with the inner side of the housing (1) through the arc-shaped protrusion (18).

8. The new nail grinder according to claim 6, characterized in that: The housing (1) is provided with an upper cover bracket (19) and a supporting portion (20), the upper cover bracket (19) and the connecting member (16) are supported on the supporting portion (20), two spaced-apart limiting blocks (21) are provided on the supporting portion (20), a limiting groove (22) is provided on the upper cover bracket (19), the connecting member (16) is limitedly installed between the two limiting blocks (21), and one end of the connecting member (16) is inserted into the limiting groove (22) and is transmission-connected to the grinding head (4), and the connecting member (16) is limitedly slid back and forth in the limiting groove (22) during the rotation of the fan (3) and drives the grinding head (4) to move.

9. The new nail grinder according to claim 1, characterized in that: The housing (1) comprises a left housing (23) and a right housing (24), wherein a mounting cavity for mounting a driver (2), a fan (3) and a grinding head (4) is formed between the left housing (23) and the right housing (24); The housing (1) further comprises a lower cover bracket (25), the lower cover bracket (25) being provided with a battery compartment (26), the battery compartment (26) being provided with a power module (27) for moving the driver (2), a switch cover (28) being provided on the battery compartment (26), the switch cover (28) being detachably mounted on the battery compartment (26) so as to detachably mount the power module (27) on the battery compartment (26); The power module (27) is a battery.

10. The new nail grinder according to claim 9, characterized in that: The housing (1) includes a bottom cover (6) covering a lower cover bracket (25) and a battery compartment (26); the bottom cover (6) is provided with an escape opening (29) corresponding to the switch cover (28); the switch cover (28) extends out of the escape opening (29) of the bottom cover (6); and the bottom cover (6) is detachably connected to the lower cover bracket (25).

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