CN214394282U

CN214394282U - Nose hair trimmer head assembly

Info

Publication number: CN214394282U
Application number: CN202120083218.3U
Authority: CN
Inventors: 黄好平; 李剑勇; 陈兴荣
Original assignee: Tianjin Xumei Technology Co ltd
Current assignee: Xumei Intelligent Technology Jiangsu Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-10-15
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to a vibrissa clipping machine tool bit subassembly. The nose hair trimmer tool bit component of the utility model comprises an inner knife piece, an outer cover and an inner knife connecting piece connected with the outer cover; the inner cutter piece is provided with an inner cutter disc, the inner cutter connecting piece is provided with a first limiting body and a second limiting body, and the inner cutter disc is positioned between the first limiting body and the second limiting body; when overlooking, the inner cutter head and the first limiting body and the second limiting body are overlapped. The utility model can ensure that the relative position between the inner cutter and the outer cover is approximately stable, thereby ensuring the stable shaving effect; the cost is reduced, and the tool bit assembly is convenient to disassemble and assemble; facilitating assembly of the cutter head assembly.

Description

Nose hair trimmer head assembly

Technical Field

The utility model relates to a personal care instrument technical field, in particular to vibrissa clipping machine tool bit subassembly.

Background

The traditional nose hair trimmer comprises a cutter head component, an adjusting component, a rotating piece and a main body provided with a driving device; the cutter head component comprises an inner cutter piece and an outer cover. The main body is in linear sliding connection with the adjusting component; the adjusting component is provided with a turning protrusion, the rotating part is provided with a turning groove, the turning protrusion is embedded into the turning groove, and the turning groove is formed by moving along the rotating axis of the rotating part along with the rotation of the rotating part. The dustcoat is connected with adjusting part, and the rotating member embedding main part realizes articulating.

In summary, the prior art has at least the following technical problems,

first, only the cover varies with the height of the adjustment assembly, resulting in a varying and unstable shaving effect with the height of the adjustment assembly.

Second, the cleaning of the cutter head assembly is relatively cumbersome.

Third, the swivel is embedded in the body to allow articulation, resulting in inconvenient assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve or alleviate the above-mentioned first technical problem.

The tool bit assembly of the vibrissa trimmer comprises an inner tool piece, an outer cover and an inner tool connecting piece connected with the outer cover; the inner cutter piece is provided with an inner cutter disc, the inner cutter connecting piece is provided with a first limiting body and a second limiting body, and the inner cutter disc is positioned between the first limiting body and the second limiting body; when overlooking, the inner cutter head and the first limiting body and the second limiting body are overlapped.

The utility model discloses the function of realization does, at the in-process that the tool bit subassembly goes up and down, and first spacing body, the spacing body of second offset with interior cutter head respectively for interior cutter, dustcoat are in step in roughly.

The utility model discloses the effect that reaches does, can ensure that the relative position between interior cutter, the dustcoat is roughly stable to it is stable to ensure to shave the hair effect.

According to a further technical scheme, the tool bit assembly further comprises a fixing piece, the fixing piece is embedded into the inner cutter connecting piece and is fixedly connected with the inner cutter connecting piece or is in threaded connection with the inner cutter connecting piece, and the second limiting body is a fixing piece.

Facilitating assembly of the cutter head assembly.

According to a further technical scheme, the fixing piece is magnetic and is annular when viewed from the top.

The cost is reduced, and the tool bit assembly is convenient to detach and mount.

According to a further technical scheme, the cutter head component further comprises a positioning piece which is respectively abutted against the inner wall of the top end of the fixing piece and the inner cutter connecting piece.

The positioning when the fixing piece is assembled is convenient.

According to the further technical scheme, the inner cutter head is circular when viewed from the top, and the inner wall of the positioning piece is approximately attached to the outer wall of the inner cutter head.

The shaking amplitude of the inner cutter during rotation can be reduced, and the stability of the shaving effect is ensured.

According to the technical scheme, the bottom end of the outer cover extends outwards to form an outer cover fixing edge, the outer cover fixing edge is abutted to the inner wall of the top end of the inner cutter connecting piece, the outer cover fixing edge is a first limiting body, the whole thickness of the inner cutter head is smaller than the distance between the first limiting body and the second limiting body.

The outer cover can slightly lift along with the inner cutter, and further the stable shaving effect is ensured.

According to a further technical scheme, at least three disk bulges uniformly distributed around the rotating axis of the inner cutter piece are fixedly arranged on the top end face of the inner cutter head; the section of the disc bulge is reduced from the inner cutter disc to the direction far away from the inner cutter disc.

The inner cutter can be ensured to rotate smoothly, and the friction force applied to the outer cover is small and the outer cover is not easy to rotate.

According to a further technical scheme, the outer cover fixing edge is respectively abutted against the inner wall of the top end of the inner cutter connecting piece and the positioning piece.

Facilitating assembly of the cutter head assembly.

In conclusion, the utility model can achieve the following technical effects,

1, the relative position between the inner cutter and the outer housing is substantially stabilized, thereby ensuring a stable shaving effect.

2, the cutter head component is convenient to detach and mount while the cost is reduced.

3, the assembly of the cutter head assembly is facilitated.

Drawings

Fig. 1 is an exploded perspective view of a nose hair trimmer according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a nose hair trimmer according to an embodiment of the present invention.

Fig. 3 is an exploded perspective view of a nose hair trimmer according to an embodiment of the present invention.

Fig. 4 is a partially cut-away schematic view of a carrier 42 according to an embodiment of the invention.

Fig. 5 is a perspective view of the inner blade 11 according to an embodiment of the present invention.

Fig. 6 is a schematic top view of a nose hair trimmer according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view of section one SEC 1.

Fig. 8 is a schematic diagram of profile two SEC 2.

Section one SEC 1; section two SEC 2; a cutter head component 1; the inner cutter 11; an inner cutter disc 111; a disc protrusion 112; an inner blade 119; a housing 12; a cover fixing rim 123; pores 129 are penetrated; an inner cutter attachment 13; a first stopper 131; a second stopper 132; a fixing member 133; a positioning member 134; an adjusting component 2; an adjusting member 21; an adjustment buckle 212; adjusting the limiting body 213; a bit connector 22; the bit attachment outer edge 221; the adjustment catch groove 222; the adjustment limiting groove 223; a linear slider 29; a rotating member 3; a mounting groove 31; an exposed portion 38; the anti-slip projections 39; a main body 4; a drive device 41; a rotary output 411; a carrier 42; mounting a buckle 421; a resilient groove 422; a toggle groove 423; mounting arms 424; a rotating groove 425; the pad-up 428; a linear slide slot 429; a direction changing structure 8; a direction-changing protrusion 81; a turning groove 82; a decorative shell 9; a main body case 91; a top shell 92.

Detailed Description

The following description will be made in conjunction with the accompanying drawings.

As a specific embodiment, the nose hair trimmer of the embodiment of the present invention includes a cutter head assembly 1 and a main body 4 provided with a driving device 41. The driving device 41 is a device that outputs rotational power, and is typically a motor or the like.

The cutter head component 1 is connected with the main body 4 in a lifting way.

Generally, the nose hair trimmer of the embodiment of the present invention further includes an adjusting assembly 2 and a rotating member 3 hinged to the main body 4; adjusting part 2 is connected with tool bit subassembly 1, adjusting part 2 and 4 sharp sliding connection of main part, and adjusting part 2, rotating member 3 pass through diversion structure 8 and connect. The direction changing structure 8 is a conventional structure capable of changing the rotational motion into a linear motion, for example, the direction changing structure 8 includes a direction changing protrusion 81 and a direction changing groove 82, and the direction changing groove 82 is a groove formed by moving along the rotational axis of the rotating member 3 along with the rotation of the rotating member 3; the direction-changing protrusion 81 is embedded into the direction-changing groove 82, one of the direction-changing protrusion 81 and the direction-changing groove 82 is arranged on the adjusting component 2, and the other one is arranged on the rotating component 3; so that when the rotating member 3 is rotated, the adjusting assembly 2 drives the cutter head assembly 1 connected with the adjusting assembly to ascend and descend. The cutter head assembly 1 and the main body 4 can be connected in a lifting manner in other manners, for example, the cutter head assembly 1 and the main body 4 are connected in a linear sliding manner through a linear bearing or other conventional linear sliding manners.

The cutter head component 1 comprises an inner cutter 11, an outer cover 12 and an inner cutter connecting piece 13 connected with the outer cover 12; the inner knife element 11 is connected to the rotary output of the drive 41 (i.e. the rotary output 411) in a linear sliding manner.

Normally, the outer cover 12 is fixedly connected with the inner knife connecting piece 13; the two can also realize the synchronous movement by the conventional connection mode such as detachable connection, hinge joint and the like.

Typically, the inner cutter 11 is provided with an inner cutting edge 119 that substantially abuts the outer envelope 12; the outer cover 12 is provided with a through hole 129 for allowing hairs (not shown) such as nose hair to pass through the outer cover 12, and the inner blade 11 rotates the inner blade 119 to cut the hairs such as nose hair passing through the through hole 129.

Typically, the rotary output 411 is embedded in the inner knife 11, so that the inner knife 11 is linearly slidably connected with the rotary output of the drive device 41. Typically, the rotary output 411 is non-circular in cross-section to transmit rotary power.

The inner cutter 11 is provided with an inner cutter disc 111, the inner cutter connecting piece 13 is provided with a first limiting body 131 and a second limiting body 132, and the inner cutter disc 111 is positioned between the first limiting body 131 and the second limiting body 132; in a plan view, there are overlapping portions between the inner cutter 111 and the first stopper 131 and between the second stopper 132.

The working principle is that when the extending height of the cutter head component 1 needs to be adjusted (generally, the height of the cutter head component 1 extending from the adjusting component 2 is submitted), the cutter head component 1 can be moved (generally, the movement is realized by rotating the rotating piece 3) relative to the main body 4.

In the process of lifting the cutter head component 1, the first limiting body 131 and the second limiting body 132 are respectively abutted against the inner cutter head 111, so that the inner cutter 11 and the outer cover 12 are lifted approximately synchronously; it is ensured that the relative position between the inner cutter member 11 and the outer housing 12 is substantially stable and that the shaving effect is stable and does not vary due to the height of the adjustment head assembly 1.

Preferably, the inner cutter deck 111 is substantially circular in plan view.

Preferably, the first stopper 131 and the second stopper 132 are both annular in plan view.

Further, the entire thickness (thickness including the thickness provided with the disk protrusion 112 described later) of the inner cutter wheel 111 is smaller than the distance between the first stopper 131 and the second stopper 132. The inner cutter disc 111 is in contact with only one of the first stopper 131 and the second stopper 132, and thus the smooth rotation of the inner cutter 11 can be ensured.

Further, a disc protrusion 112 is fixedly arranged on the top end face and/or the bottom end face of the inner cutter disc 111; the cross section of the disc protrusion 112 is reduced from the inner cutter disc 111 to a direction away from the inner cutter disc 111. Typically, the top or bottom of the cross-section of the disc protrusion 112 is semi-circular. The contact surface of the disc protrusion 112 with the first stopper 131 and/or the second stopper 132 can be reduced, so that smooth rotation of the inner cutter 11 can be ensured.

Preferably, the disc projection 112 is provided on the top end surface of the inner cutter disc 111, and the rotary output end 411 is fitted into the inner cutter 11. When the cutter head assembly 1 is detached and cleaned and then mounted on the main body 4 again, and the inner cutter 11 is inserted into the rotary output end 411, the friction force of the rotary output end 411 on the inner cutter 11 causes the inner cutter 11 to move upwards relative to the inner cutter connecting piece 13, so that the disc protrusion 112 on the top end face of the inner cutter disc 111 abuts against the first limiting body 131; at this time, the contact surface between the disc protrusion 112 of the top end surface of the inner cutter disc 111 and the first stopper 131 is small, and smooth start and rotation of the inner cutter 11 can be ensured.

Preferably, the disk protrusions 112 are two or more and are uniformly distributed around the rotational axis of the inner cutter 11. The inner cutter 11 can be ensured to be stable and not to be skewed when rotating.

Preferably, the disk protrusion 112 is generally bar-shaped or circular in plan view.

As a specific embodiment, the nose hair trimmer of the embodiment of the present invention comprises a cutter head assembly 1, an adjusting assembly 2 and a main body 4 provided with a driving device 41.

The cutter head component 1 comprises an inner cutter 11, an outer cover 12 and an inner cutter connecting piece 13 connected with the outer cover 12; the inner knife element 11 is connected to the rotary output of the drive 41, i.e. the rotary output 411.

The adjusting component 2 is connected with the main body 4 in a lifting limiting way, and the inner cutter connecting piece 13 is connected with the adjusting component 2 in a magnetic attraction way; the lifting ground is in limit connection, that is, the adjusting component 2 can change position in the height direction relative to the main body 4 (can rotate or move at the same time), but the adjusting component 2 and the main body 4 cannot be detached due to the limit position relative to the main body 4. For example, the adjusting component 2 is provided with a bolt, the main body 4 is provided with a long hole, the bolt is inserted into the long hole, the bolt can move in the long hole to be lifted, but the bolt is limited in position between the adjusting component 2 and the main body 4 when being abutted by the inner wall of the long hole. For example, the adjusting assembly 2 is in threaded connection with the main body 4, and the adjusting assembly 2 can be rotated to enable the adjusting assembly 2 to be lifted relative to the main body 4; the screw threads of the adjusting component 2 and the main body 4 are abutted to limit the position between the adjusting component 2 and the main body 4.

Generally, the main body 4 is provided with a linear slide groove 429, and the adjusting assembly 2 is provided with a linear slide block 29 inserted into the linear slide groove 429, so that the adjusting assembly 2 is linearly slidably connected with the main body 4; the main part 4 is articulated to have the rotating member 3, and one of adjusting part 2, rotating member 3 is provided with diversion arch 81, and another is provided with diversion groove 82, and diversion arch 81 imbeds diversion groove 82, and diversion groove 82 is along with the rotation of rotating member 3 and to the groove that forms along the rotatory axial lead removal of rotating member 3, and during rotatory rotating member 3, adjusting part 2 drives the tool bit subassembly 1 lift rather than magnetism is inhaled and is connected.

The working principle is that when the outer cover 12 needs to be cleaned and maintained, the outer cover 12 and the inner knife connecting piece 13 are moved to enable the outer cover 12 and the inner knife connecting piece 13 to be far away from the main body 4, and the outer cover 12 can be detached from the main body 4 by overcoming the magnetic attraction between the inner knife connecting piece 13 and the adjusting component 2; the housing 12 can now be cleaned easily.

After the outer cover 12 is cleaned and maintained, the outer cover 12 and the inner knife connecting piece 13 are moved to enable the inner knife connecting piece 13 to be close to the main body 4 until the inner knife connecting piece 13 is magnetically connected with the adjusting component 2, and the outer cover 12 and the inner knife connecting piece 13 can be conveniently reset at the moment.

It can be seen from the above that the housing 12 can be conveniently disassembled and reset, which is convenient for cleaning and maintenance of the housing 12.

Preferably, the adjusting assembly 2 comprises an adjusting piece 21 and a cutter head connecting piece 22 in limit connection with the adjusting piece 21; the inner cutter connecting piece 13 is magnetically connected with the cutter head connecting piece 22. The cutter head connecting piece 22 can be made of conventional materials which can be adsorbed by magnets and are low in cost such as iron steel, and the adjusting piece 21 can be made of light-weight plastics and the like, so that the light weight and the half cost are reduced.

As an embodiment, the bit connector 22 includes a bit connecting outer edge 221 that shields the top end of the adjuster 21 in a plan view; the side wall of the cutter head connecting piece 22 is provided with an adjusting buckle groove 222, the side wall of the adjusting piece 21 is provided with an adjusting buckle 212, and the adjusting buckle 212 is abutted against the adjusting buckle groove 222. Facilitating assembly of the adjustment assembly 2.

Preferably, the bit connector 22 is made of metal, and the side wall of the bit connector 22 abuts against the inner wall of the top end of the adjusting member 21. The portion of the inner cutter 11 remote from the drive means 41 is typically subjected to a large amount of wobble during rotation, with the possibility of contact with the adjustment member 21 causing wear of the inner wall of the adjustment member 21. The metal is generally more wear-resistant, enabling to ensure wear resistance of the top portion of the inner wall of the adjustment member 21, while ensuring a lower cost.

Further, the side wall of the tool bit connecting piece 22 is provided with an adjusting limiting groove 223, the adjusting piece 21 is provided with an adjusting limiting body 213, the adjusting limiting body 213 is inserted into the adjusting limiting groove 223, and the bottom end of the tool bit connecting piece 22 is lower than the top end of the adjusting limiting body 213 when the adjusting buckle 212 is inserted into the adjusting buckle groove 222. If the adjustment limiting body 213 and the adjustment limiting groove 223 are dislocated, the adjustment limiting body 213 abuts against the bottom end of the cutter head connecting piece 22, at this time, an obvious gap exists between the cutter head connecting outer edge 221 and the adjusting piece 21, it can be known that the installation between the adjusting piece 21 and the cutter head connecting piece 22 is not in place, the adjustment buckle 212 is not inserted into the adjustment buckle groove 222, and an operator can adjust the adjustment, so that the situation that the installation between the adjusting piece 21 and the cutter head connecting piece 22 is not in place can be eliminated or reduced.

Preferably, the inner cutter 11 is provided with an inner cutter disc 111, the inner cutter connecting piece 13 is provided with a first limiting body 131 and a second limiting body 132, and the inner cutter disc 111 is positioned between the first limiting body 131 and the second limiting body 132; in a plan view, there are overlapping portions between the inner cutter disc 111 and the first stopper 131 and between the second stopper 132, and the inner cutter 11 is detachably connected to a rotation output end (i.e., the rotation output end 411) of the driving device 41. The inner cutter 11 and the outer cover 12 can be integrated and integrally disassembled and assembled, and cleaning and maintenance are facilitated.

As a specific embodiment, the vibrissa trimmer of the embodiment of the present invention comprises a cutter head assembly 1, an adjusting assembly 2, a rotating member 3 and a main body 4 provided with a driving device 41 and a carrier 42; the cutter head assembly 1 is connected to the output of the drive device 41.

The adjusting component 2 is connected with the main body 4 in a linear sliding mode, and the adjusting component 2 is connected with the rotating piece 3 in a rotating and turning mode. The adjusting component 2 and the rotating component 3 are connected in a rotating and turning way through the turning structure 8. The direction changing structure 8 is a conventional structure capable of changing the rotational motion into a linear motion, for example, the direction changing structure 8 includes a direction changing protrusion 81 and a direction changing groove 82, and the direction changing groove 82 is a groove formed by moving along the rotational axis of the rotating member 3 along with the rotation of the rotating member 3; the direction-changing protrusion 81 is embedded into the direction-changing groove 82, one of the direction-changing protrusion 81 and the direction-changing groove 82 is arranged on the adjusting component 2, and the other one is arranged on the rotating component 3; so that when the rotating member 3 is rotated, the adjusting assembly 2 drives the cutter head assembly 1 connected with the adjusting assembly to ascend and descend.

The cutter head component 1 is connected with the adjusting component 2.

The rotating member 3 is provided with a circumferential mounting groove 31 (i.e. the central line of the mounting groove 31 is an arc formed by the intersection of the horizontal plane and the cylindrical rotating member 3), the carrier 42 is provided with at least two elastic mounting buckles 421, and the mounting buckles 421 respectively abut against the side walls of the mounting groove 31, so that the rotating member 3 is hinged to the carrier 42.

The theory of operation does, with rotating member 3 axial displacement during the equipment, until installation buckle 421 blocks into mounting groove 31, can make rotating member 3 and carrier 42 articulated, the equipment of the rotating member 3 of being convenient for. Typically, the top end surface of the mounting buckle 421 is a slope (inclined with respect to the horizontal plane), and the bottom end surface is a horizontal plane.

Further, the carrier 42 is provided with a rotation groove 425 recessed (and facing into the carrier 42 with respect to the outer surface of the carrier 42), the rotary member 3 is inserted into the rotation groove 425, and the mounting buckle 421 is provided in the rotation groove 425.

Further, the bottom wall of the rotating groove 425 is provided with a pad 428, and the bottom end surface of the mounting buckle 421 abuts against the bottom end surface of the mounting groove 31 (when the rotating member 3 is moved axially, the bottom end surface of the rotating member 3 abuts against the pad 428 and then is elastically deformed, so that the mounting buckle 421 is clamped into the mounting groove 31, and the bottom end surface of the mounting buckle 421 abuts against the bottom end surface of the mounting groove 31. The installation buckle 421 makes the rotating member 3 generate a downward movement tendency, so that the bottom end surface of the rotating member 3 and the pad 428 have a small contact surface and a small friction force while the rotating member 3 is prevented from shaking up and down relative to the main body 4, thereby ensuring that the rotating member 3 can smoothly rotate.

Preferably, the carrier 42 has elasticity, and the upper end and/or the lower end of the mounting buckle 421 is provided with an elastic groove 422. The elastic force provided by the mounting hooks 421 (the parts of the carrier 42 corresponding to the space between the elastic grooves 422 or the upper/lower parts of the elastic grooves 422 can be elastically deformed greatly) can be ensured, and the hinge strength of the rotary member 3 can be ensured.

Further, the upper end and the lower end of the mounting buckle 421 are provided with a penetrating elastic groove 422, and one side of the mounting buckle 421 is provided with a penetrating toggle groove 423. Can form installation arm 424, insert the one end of installation arm 424 from stirring groove 423 with screwdriver etc to prizing installation arm 424, removing from mounting groove 31 until installation buckle 421, slightly crooked rotating member 3 makes other installation buckle 421 follow mounting groove 31 and removes the back, can dismantle rotating member 3, otherwise can conveniently install change rotating member 3, the dismantlement of rotating member 3 of being convenient for, change.

Preferably, the rotating member 3 has elasticity, the carrier 42 is provided with a linear sliding groove 429, and the adjusting assembly 2 is provided with a linear sliding block 29 inserted into the linear sliding groove 429, so that the adjusting assembly 2 is linearly slidably connected with the main body 4; the adjusting assembly 2 is provided with a direction-changing protrusion 81, the rotating member 3 is provided with a direction-changing groove 82, the direction-changing protrusion 81 is embedded in the direction-changing groove 82, and the direction-changing groove 82 is a groove formed by moving along the rotating axis of the rotating member 3 along with the rotation of the rotating member 3. The adjusting component 2 and the rotating component 3 can be preassembled into a whole and then assembled on the carrier 42 together, which is beneficial to mass production and improves the production efficiency.

Further, the part of the rotating member 3 exposed from the mounting groove 31 is an exposed part 38, the cutter head assembly 1 is magnetically connected with the adjusting assembly 2 and is inserted into the rotating output end of the driving device 41, and the inner wall of the exposed part 38 is approximately attached to the side wall of the cutter head assembly 1. Firstly, the cutter head component 1 is inserted into the exposed part 38, and the cutter head component 1 is adsorbed on the adjusting component 2 by magnetic force, so that the cutter head component 1 is conveniently connected with the adjusting component 2.

Further, the part of the rotary member 3 exposed from the mounting groove 31 is an exposed part 38, and an outer side wall of the exposed part 38 is provided with a skidproof protrusion 39. Rotation of the rotary member 3 is facilitated.

As a specific embodiment, the cutter head assembly 1 of the embodiment of the present invention includes an inner cutter 11, an outer cover 12, and an inner cutter connecting member 13 connected to the outer cover 12; the inner cutter 11 is provided with an inner cutter disc 111, the inner cutter connecting piece 13 is provided with a first limiting body 131 and a second limiting body 132, and the inner cutter disc 111 is positioned between the first limiting body 131 and the second limiting body 132; in a plan view, there are overlapping portions between the inner cutter 111 and the first stopper 131 and between the second stopper 132.

It is ensured that the relative position between the inner cutter 11 and the outer cover 12 is substantially stabilized and thus that the shaving effect is stabilized.

Further, the cutter head assembly 1 further includes a fixing member 133, the fixing member 133 is embedded in the inner cutter connecting member 13 and is fixedly connected or threadedly connected with the inner cutter connecting member 13, and the second position-limiting body 132 is the fixing member 133. Generally, the fixing member 133 and the inner blade connecting member 13 are fixedly connected by means of interference fit (the outer wall of the fixing member 133 and the inner wall of the inner blade connecting member 13 are in interference fit), and the strength of the fixed connection between the fixing member 133 and the inner blade connecting member 13 can be enhanced by means of glue adhesion. Facilitating assembly of the cutter head assembly 1.

Preferably, the fixing member 133 has magnetism and is annular as a whole in a plan view. The annular magnet is a standard component, so that the cost is reduced, and the tool bit assembly 1 is convenient to detach and mount.

Further, the cutter head assembly 1 further comprises a positioning member 134, and the positioning member 134 abuts against the fixing member 133 and the inner wall of the top end of the inner cutter connecting member 13, respectively. Positioning when the fixing member 133 is assembled is facilitated; the stator 133 is prevented from being excessively close to the inner cutter disc 111 to press the inner cutter disc 111.

Preferably, the inner cutter 111 is circular in plan view, and the inner wall of the spacer 134 substantially abuts against the outer wall of the inner cutter 111. The shaking amplitude of the inner cutter 11 during rotation can be reduced, and the stable shaving effect is ensured.

Further, the bottom end of the outer cover 12 extends outward to form an outer cover fixing edge 123, the outer cover fixing edge 123 abuts against the inner wall of the top end of the inner cutter connecting piece 13, the outer cover fixing edge 123 is a first limiting body 131, the overall thickness of the inner cutter head 111 is smaller than the distance between the first limiting body 131 and the second limiting body 132. The outer cover 12 can slightly lift along with the inner cutter 11 (the outer cover 12 can realize the difference of the rotating speed with the inner cutter 11 by means of the friction force with the human body, and can realize the linear sliding connection with the inner cutter connecting piece 13 by means of the bulge inserted into the top wall of the inner cutter connecting piece 13), thereby further ensuring the stable shaving effect.

Further, the top end face of the inner cutter disc 111 is fixedly provided with at least three disc protrusions 112 uniformly distributed around the rotation axis of the inner cutter 11; the cross section of the disc protrusion 112 is reduced from the inner cutter disc 111 to a direction away from the inner cutter disc 111. Typically, the top or bottom of the cross-section of the disc protrusion 112 is semi-circular. The contact surface of the disc protrusion 112 with the housing fixing rim 123 can be reduced, so that smooth rotation of the inner cutter 11 can be ensured, and at the same time, the housing 12 can be ensured to receive less friction force and to be less prone to rotation.

As an embodiment (not shown in the drawings), the housing fixing edge 123 abuts against the inner wall of the top end of the inner blade connecting member 13 and the positioning member 134 (an embodiment, not shown in the drawings, in which the housing fixing edge 123 abuts against the top end of the positioning member 134), so that the housing 12 is fixedly connected with the inner blade connecting member 13. During assembly, the outer cover 12 penetrates through the inner cutter connecting piece 13, and then the inner cutter 11, the positioning piece 134 and the fixing piece 133 are sequentially arranged, so that the cutter head assembly 1 can be conveniently assembled.

As used in the present invention, the term: first, second, etc. do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

As used in the present invention, the term: one, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

As in the present invention, the term indicating orientation or position is used: top, bottom, side, longitudinal, lateral, middle, center, outer, inner, horizontal, vertical, left, right, above, below, and the like are intended to reflect relative positions, not absolute positions.

The term as used in the present invention: approximate, whole, approximate, close, etc., are words of definition that specify the presence of stated features but allow for certain deviations. The amount of tolerance for a certain deviation may vary depending on the particular context; for example, the specific context in which deviations from size may be relied upon includes, but is not limited to, national standards for dimensional tolerances.

Claims

1. The nose hair trimmer cutter head component comprises an inner cutter (11), an outer cover (12) and an inner cutter connecting piece (13) connected with the outer cover (12);

the inner cutter is characterized in that the inner cutter (11) is provided with an inner cutter head (111), the inner cutter connecting piece (13) is provided with a first limiting body (131) and a second limiting body (132), and the inner cutter head (111) is positioned between the first limiting body (131) and the second limiting body (132); in a plan view, there are overlapping portions between the inner cutter (111) and the first stopper (131) and between the second stoppers (132).

2. The nose hair trimmer head assembly according to claim 1, wherein the head assembly (1) further comprises a fixing member (133), the fixing member (133) is embedded in the inner cutter connecting member (13) and is fixedly connected or threadedly connected with the inner cutter connecting member (13), and the second position limiting body (132) is the fixing member (133).

3. The nose hair trimmer head assembly of claim 1, wherein the securing member (133) is magnetic and generally annular in shape when viewed from above.

4. The nose hair trimmer head assembly according to claim 2, wherein the head assembly (1) further comprises a positioning member (134), the positioning member (134) abutting against the fixing member (133) and the inner wall of the top end of the inner cutter connecting member (13), respectively.

5. The nose hair trimmer head assembly of claim 1, wherein the inner cutter disc (111) is circular in plan view and the inner wall of the positioning member (134) substantially conforms to the outer wall of the inner cutter disc (111).

6. The nose hair trimmer head component according to claim 4, wherein the bottom end of the outer cover (12) extends outwards to form an outer cover fixing edge (123), the outer cover fixing edge (123) abuts against the inner wall of the top end of the inner cutter connecting piece (13), the outer cover fixing edge (123) is a first limiting body (131), and the overall thickness of the inner cutter head (111) is smaller than the distance between the first limiting body (131) and the second limiting body (132).

7. The nose hair trimmer head assembly of claim 6, wherein the top end surface of the inner cutter head (111) is fixedly provided with at least three disk protrusions (112) uniformly distributed around the rotational axis of the inner cutter member (11); the section of the disc bulge (112) is reduced from the inner cutter disc (111) to the direction far away from the inner cutter disc (111).

8. The nose hair trimmer head assembly of claim 6, wherein the outer guard retaining rim (123) abuts against the inner wall of the top end of the inner blade attachment member (13) and the positioning member (134), respectively.