Guide tool bit and vibrissa trimmer

Abstract

The utility model discloses a guide tool bit and a vibrissa trimmer, and belongs to the technical field of vibrissa trimmers. The fixed cutter is provided with a collecting cavity, the fixed cutter is provided with a plurality of guide comb teeth and a plurality of guide grooves, the guide comb teeth are in a turbine shape, the guide grooves communicate with the collecting cavity, the guide comb teeth and the guide grooves are arrayed in the circumferential direction of the fixed cutter at intervals, and each guide groove extends to the side wall from the end face of the fixed cutter; the guide groove extends in the chordwise direction on the end face of the fixed cutter, and an included angle is formed between the groove wall of the guide groove and the axial direction of the fixed cutter. The movable cutter mechanism comprises two movable cutters which are arranged in the collecting cavity in a central symmetry mode, the two movable cutters are rotationally connected with the multiple guide comb teeth, and the two movable cutters and the multiple guide comb teeth are alternately connected in an abutting mode so that the hair located in the guide groove can be sheared and trimmed in a crossed mode. According to the utility model, vibrissae or other hairs can be accurately guided to a trimming position, so that the hair trimming accuracy is ensured, and the hair trimming quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nose hair trimmers, in particular to a guide blade head and a nose hair trimmer. Background Art

[0002] A nose hair trimmer is an electric device specifically used for trimming nose hair. It usually consists of a small handle and a built-in trimming blade. It is used to safely and accurately trim overly long or messy nose hair to keep the nose neat and hygienic.

[0003] In the prior art, nose hair trimmers lack clear positioning guidance, and the trimming blades cannot accurately guide the nose hair or hair to the optimal trimming position. Therefore, it is easy to deviate from the desired trimming area during the process of trimming the nose hair, thereby limiting the trimming accuracy and making it difficult to control the trimming length. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a guide blade head and a nose hair trimmer, which can guide the hair to the best trimming position and improve the quality of hair trimming.

[0005] According to the first aspect of the present invention, the guide cutter head includes a fixed cutter having a collection chamber; a plurality of guide comb teeth, each of which is turbine-shaped; a plurality of guide grooves, each of which is connected to the collection chamber, each of which extends from the end face of the fixed cutter to the side wall, and the guide groove extends along the chord direction on the end face of the fixed cutter, and the plurality of guide comb teeth and the plurality of guide grooves are arranged in an array spaced apart along the circumference of the fixed cutter.

[0006] The nose hair trimmer according to the embodiment of the utility model has at least the following beneficial effects: a plurality of guide comb teeth and a plurality of guide grooves are arranged at intervals along the circumferential direction on the edge of the fixed knife, the plurality of guide comb teeth and the plurality of guide grooves are arranged in a circular array, each guide groove extends downward from the upper end surface of the fixed knife to the side wall of the fixed knife to form an L-shaped groove body, wherein the groove section located on the end surface of the fixed knife extends along the chord direction, the guide groove is an inclined groove arranged obliquely, and the inclined guide groove accurately guides the nose hair or other hair to the optimal trimming position, thereby ensuring the accuracy of hair trimming and improving the quality of hair trimming.

[0007] According to some embodiments of the utility model, a first bending portion and a second bending portion are provided on the guide comb teeth, the first bending portion protrudes toward the side of the fixed knife away from the collecting chamber, the second bending portion is provided at the lower end of the first bending portion and smoothly transitions with the first bending portion, and the second bending portion protrudes toward the side of the fixed knife adjacent to the movable knife.

[0008] According to some embodiments of the present invention, the width of the guide groove gradually decreases along the depth direction of the guide groove.

[0009] The nose hair trimmer according to the first aspect of the utility model comprises a guide blade head and a shell; a movable blade mechanism, which is coaxially arranged with a fixed blade and rotatably connected to the fixed blade, and comprises two movable blades symmetrically arranged in a collection chamber, both movable blades are rotatably connected to a plurality of guide comb teeth, and the two movable blades are rotated around the axial direction of the fixed blade so that the two movable blades alternately abut against the plurality of guide comb teeth to form a cross-cutting mechanism for trimming the hair in the guide groove.

[0010] According to some embodiments of the utility model, each guide comb tooth is provided with a first cutting edge, the first cutting edge is located at one end of the fixed knife side wall close to the collecting chamber, at least one movable knife is provided with a second cutting edge at one end close to the fixed knife side wall, the second cutting edge is rotated around the axial direction of the fixed knife, and the second cutting edge alternately abuts against multiple first cutting edges to form cross shear.

[0011] According to some embodiments of the utility model, a third cutting edge is provided on each guide comb tooth, and the third cutting edge is located at one end of the fixed knife end face close to the collecting chamber. A fourth cutting edge is provided at one end of at least one movable knife close to the fixed knife end face, and the fourth cutting edge is rotated around the axial direction of the fixed knife, and the third cutting edge alternately abuts against multiple fourth cutting edges to form cross shear.

[0012] According to some embodiments of the utility model, one end of the second cutting edge is connected to the moving knife through a first folding portion, and the first folding portion protrudes in a rotation direction away from the moving knife. One end of the fourth cutting edge is connected to the moving knife through a second folding portion, and the second folding portion protrudes in a rotation direction away from the moving knife.

[0013] According to some embodiments of the utility model, two positioning members are further provided on the movable knife, the two positioning members and the fourth cutting edge are located at the same end of the movable knife, the two positioning members are flush with the fourth cutting edge at one end away from the movable knife, the two positioning members are both in contact with the end face of the fixed knife, and the positioning members are used to limit the position of the fourth cutting edge so that the fourth cutting edge can be stably in contact with the third cutting edge.

[0014] According to some embodiments of the utility model, the moving knife mechanism also includes: a moving knife bracket, the moving knife bracket is coaxially arranged with the shell and rotatably connected, and the two moving knives are movably arranged on the moving knife bracket; a first compression spring, the first compression spring is arranged between the two moving knives, and the first compression spring applies pressure in the direction of the moving knife approaching the fixed knife to push the moving knife so that the second cutting edge is stably abutted against the first cutting edge; a second compression spring, one end of the second compression spring is connected to the moving knife bracket, and the other end is connected to the two moving knives, the second compression spring is located at the end of the moving knife opposite to the end face of the fixed knife, and the second compression spring applies pressure in the direction of the moving knife approaching the fixed knife to push the moving knife so that the fourth cutting edge is stably abutted against the third cutting edge.

[0015] According to some embodiments of the utility model, the movable knife includes a first panel, a second panel and a bending panel, the first panel is rotatably connected to the shell, the second panel is located on one side of the first panel, the first panel, the second panel and the bending panel all extend along the axial direction of the shell, one end of the second panel is smoothly connected to the first panel through the bending panel, the first panel and the second panel are selectively provided with a second cutting edge and a fourth cutting edge, one of the positioning pieces is provided on the first panel, and the other positioning piece is provided on the second panel, and the two positioning pieces and the fourth cutting edge are located at the same end of the first panel.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic structural diagram of a nose hair trimmer according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Explosion diagram in ;

[0020] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle moving knife;

[0021] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle fixed knife;

[0022] Figure 5 yes Figure 4 Cross-sectional view in

[0023] Figure 6 yes Figure 3 A schematic diagram of the structure of the second cutting edge and the fourth cutting edge;

[0024] Figure 7 yes Figure 2 Structural diagram of the middle moving knife mechanism;

[0025] Figure 8 yes Figure 6 Cross-sectional view in

[0026] Fig. 9 yes Figure 8 Schematic diagram of the connection between the fixed blade and the power bracket;

[0027] Fig.10 yes Figure 2 Schematic diagram of the structure of the driving mechanism.

[0028] Reference numerals:

[0029] Housing 100;

[0030] Fixed blade 200, collecting chamber 210, guide comb teeth 220, first cutting edge 221, third cutting edge 222, guide groove 230, first bending portion 240, second bending portion 250, second stopper 260, and clearance groove 270;

[0031] Moving knife mechanism 300, moving knife 310, second cutting edge 311, first folding portion 3111, fourth cutting edge 312, second folding portion 3121, positioning member 313, first panel 314, second panel 315, bending panel 316, first pin hole 317, moving knife bracket 320, first limiting member 321, second pin hole 322, pin member 323, through groove 324, first compression spring 330, second compression spring 340, compression spring bracket 350, limiting protrusion 360;

[0032] The driving mechanism 400 , the first transmission bracket 410 , the eccentric shaft 411 , the first buckling portion 412 , the first positioning portion 413 , the second transmission bracket 420 , the third compression spring 421 , the second buckling portion 422 , and the second positioning portion 423 . DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] refer to Figures 1 to 10 A nose hair trimmer according to an embodiment of the present utility model is described.

[0038] like Figures 1 to 10 As shown, the nose hair trimmer according to the embodiment of the utility model includes a housing 100; a fixed knife 200, which is coaxially arranged on the housing 100, and is fixedly connected to the housing 100, and the fixed knife 200 has a collecting chamber 210, and a plurality of guide comb teeth 220 and a plurality of guide grooves 230 are arranged on the fixed knife 200, and the plurality of guide grooves 230 are all connected to the collecting chamber 210, and the plurality of guide comb teeth 220 and the plurality of guide grooves 230 are arranged in an array spaced apart along the circumference of the fixed knife 200, and each guide groove 230 extends from the end face of the fixed knife 200 to the side wall, and the guide groove 230 extends along the chord direction at the end face of the fixed knife 200, and the angle between the groove wall of the guide groove 230 and the axial direction of the fixed knife 200 is α, and α satisfies: α≠0° The movable knife mechanism 300 is coaxially arranged with the fixed knife 200, and is rotatably connected with the fixed knife 200. The movable knife mechanism 300 includes two movable knives 310 centrally symmetrically arranged in the collecting chamber 210, and the two movable knives 310 are rotatably connected with the plurality of guide comb teeth 220. The two movable knives 310 are rotated around the axial direction of the fixed knife 200 so that the two movable knives 310 alternately abut against the plurality of guide comb teeth 220 to form a cross shearing and trimming of the hair located in the guide groove 230; the driving mechanism 400 is arranged on the housing 100, and the driving mechanism 400 is connected with the movable knife mechanism 300, and the driving mechanism 400 is used to drive the movable knife mechanism 300 to rotate in the housing 100.

[0039] like Figure 1 and Figure 2As shown, the housing 100 is axially centered in the vertical direction, the fixed knife 200 is fixedly arranged on the housing 100, and the interior of the fixed knife 200 is enclosed to form a collecting chamber 210. Specifically, the upper end surface of the fixed knife 200 is horizontally arranged, and the edge of the fixed knife 200 is provided with a plurality of guide comb teeth 220 and a plurality of guide grooves 230 at intervals along the circumferential direction, and the plurality of guide comb teeth 220 and the plurality of guide grooves 230 are in a circumferential array. Among them, each guide groove 230 extends downward from the upper end surface of the fixed knife 200 to the side wall of the fixed knife 200 to form an L-shaped groove body, and the groove section located at the end surface of the fixed knife 200 extends along the chord direction, and the groove wall of the guide groove 230 has an angle α with the axial direction of the fixed knife 200, and α satisfies: α≠0°, that is, the guide groove 230 is an inclined groove arranged obliquely. Two movable knives 310 are arranged in the collection chamber 210. The two movable knives 310 are symmetrical about the axis center of the housing 100. The two movable knives 310 are both rotatably connected to the housing 100, that is, the two movable knives 310 are both rotatably connected to the fixed knife 200, and the end of each movable knife 310 abuts against the inner wall of the fixed knife 200. Therefore, when the movable knives 310 are rotated around the axis direction of the fixed knife 200, the two movable knives 310 abut against the plurality of guide comb teeth 220 alternately, and the two move in parallel and form a cross shear, and the guide groove 230 accurately guides the nose hair or other hair to the best trimming position, thereby ensuring the accuracy of hair trimming and improving the hair trimming quality.

[0040] Specifically, when in use, the movable knife 310 rotates along the extension direction of the multiple guide grooves 230 on the upper end surface of the fixed knife 200. In the present specific embodiment, the extension direction of the guide grooves 230 is offset to the right of the end surface diameter of the fixed knife 200, that is, the opening ends of the multiple guide grooves 230 are radially arranged clockwise, so the movable knife 310 rotates clockwise.

[0041] Specifically, the width of the guide groove 230 gradually decreases along the depth direction of the guide groove 230. Figure 4 As shown, the guide grooves 230 are radially arranged on the periphery of the fixed knife 200, and the guide grooves 230 have an angle with the axial direction of the fixed knife 200. The rotation directions of the multiple guide grooves 230 are the same, and the horizontal width of each guide groove 230 gradually increases along the extension direction of the guide groove 230 toward the opening to expand the hair receiving area and improve the efficiency of hair trimming.

[0042] Specifically, the fixed knife 200 is detachably connected to the housing 100 via a threaded structure, so when trimming is completed, the fixed knife 200 can be rotated and detached to clear the hair in the collection chamber 210.

[0043] In some specific implementations of the utility model, each guide comb tooth 220 is provided with a first cutting edge 221, and the first cutting edge 221 is located at one end of the side wall of the fixed knife 200 close to the collecting chamber 210. At least one movable knife 310 is provided with a second cutting edge 311 at one end close to the side wall of the fixed knife 200. The second cutting edge 311 is rotated around the axial direction of the fixed knife 200, and the second cutting edge 311 alternately abuts against multiple first cutting edges 221 to form cross shear.

[0044] In some specific implementations of the utility model, each guide comb tooth 220 is provided with a third cutting edge 222, and the third cutting edge 222 is located at one end of the end face of the fixed knife 200 close to the collecting chamber 210. At least one movable knife 310 is provided with a fourth cutting edge 312 at one end close to the end face of the fixed knife 200. The fourth cutting edge 312 is rotated around the axial direction of the fixed knife 200, and the third cutting edge 222 and multiple fourth cutting edges 312 are alternately abutted to form cross shear.

[0045] like Figure 3 As shown, the two movable knives 310 are symmetrical to each other. Taking the movable knife 310 on the right side as an example, the right end of the movable knife 310 is provided with a second cutting edge 311, and the upper end of the movable knife 310 is provided with a fourth cutting edge 312. Figure 4 and Figure 5 As shown, the guide comb teeth 220 are provided with a first cutting edge 221 and a third cutting edge 222, the first cutting edge 221 is located on the inner side wall of the fixed knife 200, and the third cutting edge 222 is located on the inner wall of the end face of the fixed knife 200. It should be noted that the inner side wall of the fixed knife 200 and the inner wall of the end face of the fixed knife 200 are both the cavity wall of the collecting cavity 210. Specifically, the first cutting edge 221 corresponds to all the third cutting edges 222, and the first cutting edge 221 can alternately abut against all the third cutting edges 222. Similarly, the second cutting edge 311 corresponds to all the fourth cutting edges 312, and the second cutting edge 311 can alternately abut against all the fourth cutting edges 312. Therefore, when rotating along the axis of the fixed knife 200 and along the extension direction of the multiple guide grooves 230, the second cutting edges 311 on the two movable knives 310 move parallel to all the first cutting edges 221 and abut alternately, and the fourth cutting edges 312 on the two movable knives 310 move parallel to all the third cutting edges 222 and abut alternately, and the first cutting edges 221 and the third cutting edges 222, the second cutting edges 311 and the fourth cutting edges 312 form an L-shaped trimming area, which can trim the hair on the side of the fixed knife 200 and near the end face of the fixed knife 200 at the same time, so as to expand the trimming range and improve the efficiency of hair trimming.

[0046] Of course, one of the movable knives 310 on the left and right sides can be provided with a second cutting edge 311, and the other can be provided with a fourth cutting edge 312. Then, when rotating along the axis of the fixed knife 200 and along the extension direction of the multiple guide grooves 230, the second cutting edge 311 on one of the movable knives 310 moves parallel to and alternately abuts against all the first cutting edges 221, and the fourth cutting edge 312 on the other movable knife 310 moves parallel to and alternately abuts against all the third cutting edges 222. The first cutting edge 221 and the third cutting edge 222, the second cutting edge 311 and the fourth cutting edge 312 can also form an L-shaped trimming area to trim the hair on the side of the fixed knife 200 and near the end face of the fixed knife 200.

[0047] In some specific implementations of the present utility model, one end of the second cutting edge 311 is connected to the movable knife 310 through a first folding portion 3111, and the first folding portion 3111 protrudes in a rotation direction away from the movable knife 310. One end of the fourth cutting edge 312 is connected to the movable knife 310 through a second folding portion 3121, and the second folding portion 3121 protrudes in a rotation direction away from the movable knife 310.

[0048] like Figure 6 As shown, the cross-sections of the second cutting edge 311 and the fourth cutting edge 312 are both acute angles, the second cutting edge 311 is inclined forward to the left through the first folding portion 3111, and the fourth cutting edge 312 is inclined forward to the left through the second folding portion 3121, and the inclination direction of the second cutting edge 311 and the fourth cutting edge 312 is consistent with the rotation direction of the movable knife 310. When the second cutting edge 311 and the fourth cutting edge 312 are inclined forward in the shearing direction, they will contact and cut the hair at a smaller angle, which helps to guide the blade to perform precise and smooth cutting in the material, reduce the resistance and extrusion of the material, so that the blade can penetrate the hair more easily, reduce the pulling on the hair, and reduce the damage to the nasal cavity caused by hair trimming.

[0049] In some specific implementations of the utility model, two positioning members 313 are further provided on the movable knife 310. The two positioning members 313 and the fourth cutting edge 312 are located at the same end of the movable knife 310. The ends of the two positioning members 313 away from the movable knife 310 are flush with the fourth cutting edge 312. The two positioning members 313 are both in contact with the end face of the fixed knife 200. The positioning members 313 are used to limit the position of the fourth cutting edge 312.

[0050] like Figure 6As shown, the movable knife 310 is in a U-shape. Specifically, the movable knife 310 has a first panel 314, a second panel 315 and a bending panel 316, wherein the first panel 314 is located at the front side of the second panel 315, the first panel 314 and the second panel 315 are connected by the bending panel 316 at the left end, the second cutting edge 311 is arranged at the right end of the second panel 315, and the fourth cutting edge 312 is arranged at the upper end of the second panel 315. A positioning member 313 is arranged at the upper end of the first panel 314, and a positioning member 313 is arranged at the upper end of the second panel 315. The two positioning members 313 are flush with the fourth cutting edge 312, and further, the two positioning members 313 correspond to each other. Thus, the two positioning members 313 and the fourth cutting edge 312 form a triangular positioning and abut against the inner wall of the end face of the fixed knife 200, so as to ensure that the movable knife 310 can stably abut against the third cutting edge 222 during the rotation process, and cooperate with each other to form a cross shear.

[0051] In some specific implementations of the utility model, a first bending portion 240 and a second bending portion 250 are provided on the guide comb tooth 220, and the first bending portion 240 protrudes toward the side of the fixed knife 200 away from the movable knife 310, and the second bending portion 250 is provided at the lower end of the first bending portion 240 and smoothly transitions with the first bending portion 240, and the second bending portion 250 protrudes toward the side of the fixed knife 200 adjacent to the movable knife 310.

[0052] like Figure 4 and Figure 5 As shown, the first bending parts 240 on the plurality of guide comb teeth 220 protrude radially outward, and the second bending parts 250 on the plurality of guide comb teeth 220 are recessed radially inward, and the first bending parts 240 and the second bending parts 250 smoothly transition to form an annularly protruding curved surface structure. The protruding annular structure can realize the concentration of the trimming area, so that the guide groove 230 can better capture the hair, thereby ensuring an accurate and uniform trimming effect.

[0053] In some specific implementations of the present utility model, the moving knife mechanism 300 also includes: a moving knife bracket 320, the moving knife bracket 320 is coaxially arranged with the shell 100 and rotatably connected, and the two moving knives 310 are movably arranged on the moving knife bracket 320; a first compression spring 330, the first compression spring 330 is arranged between the two moving knives 310, the first compression spring 330 applies pressure in the direction of the moving knife 310 approaching the fixed knife 200 to push the moving knife 310 so that the second cutting edge 311 is stably abutted with the first cutting edge 221; a second compression spring 340, one end of the second compression spring 340 is connected to the moving knife bracket 320, and the other end is connected to the two moving knives 310, the second compression spring 340 is located at the end of the moving knife 310 opposite to the end face of the fixed knife 200, the second compression spring 340 applies pressure in the direction of the moving knife 310 approaching the fixed knife 200 to push the moving knife 310 so that the fourth cutting edge 312 is stably abutted with the third cutting edge 222.

[0054] In some specific implementations of the present invention, a first stopper 321 is provided on the movable knife support 320, and a second stopper 260 is provided on the fixed knife 200. The first stopper 321 is rotatably connected with the second stopper 260, and the first stopper 321 cooperates with the second stopper 260 to limit the rotation range of the movable knife 310. Figure 8 and Fig. 9 As shown, the first stopper 321 is a groove disposed on the top of the moving knife support 320, and the second stopper 260 is a protrusion disposed on the inner wall of the end surface of the fixed knife 200. The protrusion and the groove correspond to each other. When the moving knife 310 rotates, the groove rotates around the protrusion, thereby controlling the movement range of the moving knife support 320, avoiding collision and conflict between structures, and improving the safety and reliability between structures. Of course, the first stopper 321 can also be a protrusion, and the second stopper 260 can also be a groove. Then, when the moving knife 310 rotates, the protrusion rotates in the groove, which can also limit the movement range of the moving knife support 320.

[0055] It should be noted that if Figure 6 As shown, the movable knife 310 is provided with a clearance groove 270, which extends from the first panel 314 along the bent panel 316 to the second panel 315, and the second panel 315 is provided with a limiting protrusion 360, which is located in the clearance groove 270 and extends in a direction away from the second cutting edge 311. The lower end of the clearance groove 270 is provided with a first pin hole 317, which penetrates the first panel 314 and the second panel 315 in the front-to-back direction, and the movable knife bracket 320 is provided with a second pin hole 322, which corresponds to the first pin hole 317, and is provided with a pin 323 that can be simultaneously penetrated in the first pin hole 317 and the second pin hole 322.

[0056] like Figure 7 and Figure 8 As shown, the movable knife bracket 320 is coaxially arranged with the housing 100 and is rotatably connected, wherein the movable knife bracket 320 is provided with a vertically arranged through slot 324 in the left-right direction, and the two movable knives 310 are centrally symmetrically arranged in the through slot 324, and the second cutting edge 311 and the fourth cutting edge 312 both extend outward in a direction away from the movable knife bracket 320. It should be noted that the two limiting protrusions 360 on the two movable knives 310 are arranged opposite to each other, and the two ends of the first compression spring 330 are respectively sleeved on the two relative limiting protrusions 360, and the pin 323 passes through the first pin hole 317 and the second pin hole 322, so that the two movable knives 310 are movably connected to the movable knife bracket 320.

[0057] Specifically, in order to provide appropriate clearance and movable space to ensure smooth movement and flexibility of the movable knife 310 , the horizontal dimensions of the first pin hole 317 and the second pin hole 322 are both larger than the horizontal dimension of the pin member 323 .

[0058] In some specific implementations of the utility model, the driving mechanism 400 includes: a main machine, which is arranged on the shell 100; a first transmission bracket 410, which is transmission-connected to the main machine via an eccentric shaft 411; a second transmission bracket 420, which is connected to the first transmission bracket 410 via a third compression spring 421, and the second transmission bracket 420 is connected to the movable knife bracket 320.

[0059] like Figure 8 and Fig.10 As shown, the mainframe, the first bracket, the second bracket and the movable knife bracket 320 are arranged in sequence from bottom to top, wherein the first bracket and the mainframe are connected by the eccentric shaft 411, and the second bracket and the first bracket are connected by the third compression spring 421 arranged axially, and the third compression spring 421 applies pressure to the second bracket to ensure the correct position between the first bracket and the second bracket. It should be noted that a compression spring bracket 350 is arranged on the movable knife bracket 320, and the compression spring bracket 350 is located at the lower end of the movable knife 310. The second compression spring 340 is inserted into the movable knife bracket 320, and one end thereof abuts against the compression spring bracket 350, and the other end abuts against the second bracket. The second compression spring 340 applies upward pressure to the two movable knives 310, so that the second cutting edge 311 and the fourth cutting edge 312 abut against each other, so as to realize the trimming function of the top of the fixed knife 200.

[0060] Specifically, the side wall of the first bracket is provided with a plurality of first buckling parts 412 along the circumferential direction, and the side wall of the second bracket is provided with a plurality of second buckling parts 422 along the circumferential direction. The number of the second buckling parts 422 is the same as the number of the first buckling parts 412. Each first buckling part 412 is provided with a corresponding second buckling part 422. The first buckling parts 412 and the second buckling parts 422 cooperate with each other to fix the first bracket and the second bracket to each other. Figure 8 As shown, in this specific embodiment, the first buckling portion 412 and the second buckling portion 422 are a through hole and a buckle claw. It is conceivable that the first buckling portion 412 and the second buckling portion 422 can also be a buckle claw and a through hole.

[0061] Specifically, the side wall of the first bracket is provided with a plurality of first positioning portions 413 along the circumferential direction, and the side wall of the second bracket is provided with a plurality of second positioning portions 423 along the circumferential direction. The number of the second positioning portions 423 is the same as the number of the first positioning portions 413. Each first positioning portion 413 is provided with a corresponding second positioning portion 423. The first positioning portions 413 and the second positioning portions 423 cooperate with each other to guide the first bracket and the second bracket to buckle smoothly. Figure 8 As shown, in this specific embodiment, the first positioning portion 413 is a strip groove opening upward, and the second positioning portion 423 is a convex ridge arranged along the axial direction. When the convex ridge enters the corresponding strip groove, the corresponding buckle claw and through hole can be smoothly and accurately buckled.

[0062] In some specific implementations of the utility model, the fixed knife 200 is fixedly arranged on the housing 100, and the fixed knife 200 is detachably connected to the housing 100 through a threaded structure, and the interior of the fixed knife 200 encloses a collecting chamber 210. The upper end surface of the fixed knife 200 is arranged horizontally, and the edge of the fixed knife 200 is provided with a plurality of guide comb teeth 220 and a plurality of guide grooves 230 at intervals along the circumferential direction, and all the guide grooves 230 are connected to the collecting chamber 210. The plurality of guide comb teeth 220 and the plurality of guide grooves 230 are arranged in a circumferential array, and each guide groove 230 extends downward from the upper end surface of the fixed knife 200 to the side wall of the fixed knife 200 to form an L-shaped groove body, and the extension direction of the guide groove 230 is offset to the right of the diameter of the end surface of the fixed knife 200, and the open ends of all the guide grooves 230 are arranged radially clockwise. Two movable knives 310 are arranged in the collecting chamber 210, and the two movable knives 310 are symmetrical about the axial center of the shell 100. A second cutting edge 311 is arranged on the side end of the movable knife 310, and a fourth cutting edge 312 is arranged on the top end. A first cutting edge 221 is arranged on the inner side wall of the fixed knife 200, and a third cutting edge 222 is arranged on the inner wall of the end face of the fixed knife 200. The first cutting edge 221 corresponds to all the third cutting edges 222, and the first cutting edge 221 can alternately abut against all the third cutting edges 222. Similarly, the second cutting edge 311 corresponds to all the fourth cutting edges 312, and the second cutting edge 311 can alternately abut against all the fourth cutting edges 312. When rotating along the axis of the fixed knife 200 and along the extension direction of the multiple guide grooves 230, the second cutting edge 311 on the two movable knives 310 moves parallel to all the first cutting edges 221 and abuts alternately, the fourth cutting edge 312 on the two movable knives 310 moves parallel to all the third cutting edges 222 and abuts alternately, the first cutting edge 221 and the third cutting edge 222, the second cutting edge 311 and the fourth cutting edge 312 form an L-shaped trimming area, the first cutting edge 221 and the third cutting edge 222 move parallel to each other and form a cross shear, the second cutting edge 311 and the fourth cutting edge 312 move parallel to each other and form a cross shear, the guide groove 230 accurately guides the nose hair or other hair to the optimal trimming position, ensures the accuracy of hair trimming, realizes the trimming function of the top and side of the fixed knife 200, and improves the hair trimming quality and efficiency.

[0063] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A guide cutter head, characterized in that: include: A fixed knife (200), wherein the fixed knife (200) has a collecting chamber (210); A plurality of guide comb teeth (220), wherein the plurality of guide comb teeth (220) are in a turbine shape; A plurality of guide grooves (230), each of the guide grooves (230) is connected to the collecting chamber (210), each of the guide grooves (230) extends from the end surface of the fixed knife (200) to the side wall, the guide groove (230) extends along the chord direction at the end surface of the fixed knife (200), and the plurality of guide comb teeth (220) and the plurality of guide grooves (230) are arranged in an array spaced apart along the circumference of the fixed knife (200).

2. The guide cutter head according to claim 1, characterized in that: The guide comb teeth (220) are provided with a first bending portion (240) and a second bending portion (250); the first bending portion (240) protrudes toward a side of the fixed knife (200) away from the collecting chamber (210); the second bending portion (250) is arranged at a lower end of the first bending portion (240) and smoothly transitions with the first bending portion (240); the second bending portion (250) protrudes toward a side of the fixed knife (200) adjacent to the movable knife (310).

3. The guide cutter head according to claim 1, characterized in that: The width of the guide groove (230) gradually decreases along the depth direction of the guide groove (230).

4. A nose hair trimmer, characterized in that: A guide cutter head comprising any one of claims 1 to 3, and Housing (100); A movable knife mechanism (300) is coaxially arranged with the fixed knife (200), the movable knife mechanism (300) is rotatably connected to the fixed knife (200), the movable knife mechanism (300) comprises two movable knives (310) symmetrically arranged in the collecting chamber (210), the two movable knives (310) are both rotatably connected to the plurality of guide comb teeth (220), and the two movable knives (310) are rotated around the axial direction of the fixed knife (200) so that the two movable knives (310) alternately abut against the plurality of guide comb teeth (220), so as to form a cross shearing mode to trim the hair located in the guide groove (230).

5. The nose hair trimmer according to claim 4, characterized in that: Each of the guide comb teeth (220) is provided with a first cutting edge (221), and the first cutting edge (221) is located at one end of the side wall of the fixed knife (200) close to the collecting chamber (210). At least one of the movable knives (310) is provided with a second cutting edge (311) at one end close to the side wall of the fixed knife (200), and the second cutting edge (311) is rotated around the axial direction of the fixed knife (200), and the second cutting edge (311) and the plurality of the first cutting edges (221) are alternately abutted to form cross shearing.

6. The nose hair trimmer according to claim 5, characterized in that: Each of the guide comb teeth (220) is provided with a third cutting edge (222), and the third cutting edge (222) is located at one end of the end face of the fixed knife (200) close to the collecting chamber (210). At least one of the movable knives (310) is provided with a fourth cutting edge (312) at one end close to the end face of the fixed knife (200), and when the fourth cutting edge (312) is rotated around the axial direction of the fixed knife (200), the third cutting edge (222) and the plurality of fourth cutting edges (312) are alternately abutted to form cross shearing.

7. The nose hair trimmer according to claim 6, characterized in that: One end of the second cutting edge (311) is connected to the movable knife (310) via a first folding portion (3111), and the first folding portion (3111) protrudes in a rotation direction away from the movable knife (310); one end of the fourth cutting edge (312) is connected to the movable knife (310) via a second folding portion (3121), and the second folding portion (3121) protrudes in a rotation direction away from the movable knife (310).

8. The nose hair trimmer according to claim 6, characterized in that: The movable knife (310) is also provided with two positioning members (313), the two positioning members (313) and the fourth cutting edge (312) are located at the same end of the movable knife (310), the ends of the two positioning members (313) away from the movable knife (310) are flush with the fourth cutting edge (312), the two positioning members (313) are both in contact with the end surface of the fixed knife (200), and the positioning members (313) are used to limit the position of the fourth cutting edge (312) so that the fourth cutting edge (312) is in stable contact with the third cutting edge (222).

9. The nose hair trimmer according to claim 8, characterized in that: The moving knife mechanism (300) further comprises: A movable knife support (320), the movable knife support (320) being coaxially arranged with the housing (100) and rotatably connected, and the two movable knives (310) are movably arranged on the movable knife support (320); a first compression spring (330), the first compression spring (330) being arranged between the two movable knives (310), the first compression spring (330) applying pressure in a direction in which the movable knife (310) approaches the fixed knife (200) to push the movable knife (310) so that the second cutting edge (311) is in stable contact with the first cutting edge (221); A second compression spring (340), one end of the second compression spring (340) is connected to the movable knife bracket (320), and the other end is connected to the two movable knives (310), the second compression spring (340) is located at the end of the movable knife (310) opposite to the end surface of the fixed knife (200), the second compression spring (340) applies pressure in the direction of the movable knife (310) approaching the fixed knife (200) to push the movable knife (310) so that the fourth cutting edge (312) is stably abutted against the third cutting edge (222).

10. The nose hair trimmer according to claim 8, characterized in that: The movable knife (310) comprises a first panel (314), a second panel (315) and a bending panel (316); the first panel (314) is rotatably connected to the shell (100); the second panel (315) is located on one side of the first panel (314); the first panel (314), the second panel (315) and the bending panel (316) all extend along the axial direction of the shell (100); one end of the second panel (315) is smoothly connected to the first panel (314) through the bending panel (316); the first panel (314) and the second panel (315) are selectively provided with the second cutting edge (311) and the fourth cutting edge (312); one of the positioning members (313) is provided on the first panel (314), and the other positioning member (313) is provided on the second panel (315); the two positioning members (313) and the fourth cutting edge (312) are located at the same end of the first panel (314).

Images