CN220446521U - Blade assembly, hair trimmer head and hair trimmer - Google Patents

Abstract

The embodiment of the application discloses a blade assembly and a hair trimmer cutter head, wherein the blade assembly comprises a movable cutter, a fixed cutter bracket and a supporting spring piece, the movable cutter can reciprocate along a preset direction, and the movable cutter is provided with a shearing blade; the fixed knife is provided with a shearing opening, and the shearing opening is used for allowing the object to be sheared to extend into and be matched with the shearing blade so as to cut the object to be sheared; the fixed knife bracket comprises a plastic part and a supporting frame which are connected with each other, and the fixed knife is fixedly connected with the supporting frame; the supporting elastic sheet comprises a connecting part and an elastic pre-pressing part which are connected with each other, the connecting part is fixedly connected with the movable cutter, the elastic pre-pressing part is positioned between the movable cutter and the plastic piece, the elastic pre-pressing part can be connected with the plastic piece in a reciprocating manner along a preset direction, and the movable cutter is elastically pre-pressed to be attached to the fixed cutter. According to the utility model, the supporting spring piece of the blade assembly is in sliding connection with the plastic piece of the fixed blade bracket, so that friction can be effectively reduced, and temperature rise is reduced.

Description

Blade assembly, hair trimmer head and hair trimmer

Technical Field

The present application relates to the field of hair cutting technology, and in particular to a blade assembly, a hair trimmer head and a hair trimmer.

Background

There are a wide variety of hair trimmers in life, such as shavers, hair clippers, hair trimmers, and the like. The hair trimmer has one or more cutter heads, which may be identical or different in structure. Generally, the hair trimmer cutter head comprises a fixed cutter, a movable cutter, a fixed cutter support, a movable cutter support and an elastic support, wherein the fixed cutter is fixedly arranged on the fixed cutter support, the movable cutter is fixedly arranged on the movable cutter support, and the movable cutter is driven by a driving mechanism to reciprocate along a preset direction so as to be matched with the fixed cutter to realize cutting of beard waiting for a cut object.

In the related art, in order to guarantee shearing precision, the movable knife is closely attached to the fixed knife at any time, and one or more elastic supporting pieces are arranged, so that the lower end of each elastic supporting piece is fixedly connected with the fixed knife support, and the upper end of each elastic supporting piece is elastically abutted to the movable knife, so that the movable knife is elastically pressed against the attached movable knife. Therefore, although the elastic supporting piece can push the movable cutter to be attached to the movable cutter, the elastic supporting piece and the movable cutter are made of metal, the movable cutter moves in a reciprocating manner during working and rubs with the elastic supporting piece at high frequency, a large amount of heat is generated, the movable cutter and the fixed cutter are easy to bend and deform, hair clamping is easy to occur, and meanwhile, the use comfort of a user can be influenced due to excessively high temperature rise. In addition, the high frequency friction between the movable knife and the elastic support member can increase the energy consumption of the driving mechanism, so that the power consumption rate can be increased.

The foregoing is merely provided to facilitate an understanding of the principles of the utility model and is not admitted to be prior art.

Disclosure of Invention

In view of the above, the present utility model provides a blade assembly for solving the technical problem that the friction force between the elastic support member and the movable blade of the hair trimmer head is too large.

In order to achieve the above purpose, the blade assembly provided by the utility model comprises a movable blade, a fixed blade bracket and a supporting spring piece;

the movable cutter can reciprocate along a preset direction and is provided with a shearing blade;

the fixed knife is provided with a shearing opening, and the shearing opening is used for allowing an object to be sheared to extend into and be matched with the shearing blade so as to cut the object to be sheared;

the fixed knife bracket comprises a plastic piece and a supporting frame which are connected with each other, and the fixed knife is fixedly connected with the supporting frame;

the supporting elastic sheet comprises a connecting part and an elastic pre-pressing part which are connected with each other, the connecting part is fixedly connected with the movable cutter, the elastic pre-pressing part is positioned between the movable cutter and the plastic piece, the elastic pre-pressing part can be connected with the plastic piece in a reciprocating manner along a preset direction, and the movable cutter is elastically pre-pressed until the movable cutter is attached to the fixed cutter.

In an embodiment, the elastic pre-pressing part is an elastic cantilever extending downwards from the connecting part and away from the connecting part in an inclined way; the plastic piece is positioned below the movable knife, and the lower end of the elastic cantilever is slidably connected with the plastic piece along a preset direction.

In an embodiment, an arc pushing surface extending along the preset direction is formed at the lower end of the elastic cantilever, and the arc pushing surface abuts against the top surface of the plastic piece.

In an embodiment, at least one elastic cantilever is connected to each of two ends of the connecting portion in the preset direction; the two ends of the support frame in the preset direction are fixedly connected with one plastic piece respectively; the connecting part is fixedly connected to the middle part of the movable knife in the preset direction; the arc pushing surface of the elastic cantilever is correspondingly abutted to the top surface of the plastic piece.

In an embodiment, the supporting frame is made of metal, and the plastic piece is welded to the supporting frame.

In an embodiment, the support frame includes two opposite side plates and a cantilever beam connected to the bottoms of the two side plates, and the side plates extend along the preset direction; the plastic piece comprises a sliding connection main body and a first hot melting column connected to the bottom wall of the sliding connection main body; the cantilever beam is provided with a via hole corresponding to the first hot-melt column, and the first hot-melt column is adaptively welded in the via hole so as to fixedly connect the plastic piece and the support frame; the support spring piece is slidably connected with the sliding connection main body.

In an embodiment, the blade assembly further comprises a decoration fixedly connected to two ends of the fixed blade along the preset direction, a positioning column is arranged on the decoration, and a positioning hole matched with the positioning column is formed in the sliding connection main body.

The utility model also provides a hair trimmer cutter head, which comprises a cutting unit, a blade assembly and a shell, wherein the blade assembly and the shell are arranged on the shell, and the blade assembly and the cutting unit are arranged at the mounting opening.

In an embodiment, the hair trimmer cutter head further comprises a filling member mounted at the mounting opening and surrounding the periphery of the blade assembly to fill a gap between the blade assembly and the periphery of the mounting opening; the plastic part of the blade assembly at least partially extends out of the support frame to be fixedly connected with the filling part.

In an embodiment, the bottom wall of the plastic part is provided with a second hot-melt column, the filling part is provided with a hot-melt hole corresponding to the second hot-melt column, and the second hot-melt column extends out of the supporting frame to be installed in the hot-melt hole in an adapting mode.

In one embodiment, a plurality of the shear cuts are formed on the side edge of the stationary knife; the filling piece is provided with a plurality of comb teeth corresponding to the plurality of shear cuts, a carding gap is formed between every two adjacent comb teeth, and each carding gap is opposite to at least one shear cut.

The utility model also proposes a hair trimmer comprising a drive mechanism and a hair trimmer head according to any of the preceding claims, the drive shaft of the drive mechanism being drivingly connected to the cutting unit and the movable blade of the blade assembly.

According to the blade assembly of the hair trimmer, the movable blade is elastically preloaded to be attached to the fixed blade through the supporting elastic sheet, so that the movable blade can be tightly attached to the fixed blade when the movable blade moves back and forth along the preset direction, the cutting precision of the blade assembly can be ensured, and the situation of hair blocking and the like can be effectively avoided. By making the stationary knife holder comprise a plastic part and a supporting part; the supporting spring plate comprises a connecting part and an elastic pre-pressing part which are connected with each other, the connecting part of the supporting spring plate is fixedly connected with the movable knife, and the elastic pre-pressing part of the supporting spring plate can be connected with the plastic piece in a reciprocating manner along a preset direction. Compared with the mode of fixedly connecting the supporting elastic sheet with the fixed cutter support, the elastic pre-pressing part of the supporting elastic sheet is in sliding connection with the movable cutter, so that the elastic pre-pressing part of the supporting elastic sheet is in sliding connection with the plastic part of the fixed cutter support, mutual friction of metal materials is avoided, noise can be reduced on one hand, friction force can be effectively reduced on the other hand, reciprocating movement of the movable cutter is smoother, temperature rise caused by reciprocating friction of the supporting elastic sheet is reduced, bending deformation of the fixed cutter due to overhigh temperature rise is avoided, energy consumption of a driving mechanism can be reduced, and the power consumption rate of the whole machine is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a schematic view of an embodiment of a blade assembly of the present utility model;

FIG. 2 is an exploded view of the blade assembly of FIG. 1;

FIG. 3 is a schematic view of an embodiment of a plastic part of the blade assembly of the present utility model;

FIG. 4 is a schematic view of an embodiment of a supporting spring of the blade assembly of the present utility model;

FIG. 5 is a schematic view of an embodiment of a hair trimmer head of the present utility model;

FIG. 6 is a schematic view of an assembly of a blade assembly and a filler of the hair trimmer cutter head of FIG. 5;

FIG. 7 is a cross-sectional view of the structure of FIG. 6 taken at an angle;

fig. 8 is a schematic view of an exploded construction of the hair trimmer cutter head of fig. 6.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						10	Hair trimmer cutter head	134	First hot-melt column	150	Decoration piece
100	Blade assembly	135	Second hot-melt column	151	Positioning column
						110	Movable knife	136	Supporting frame	200	Cutting unit
111	Shearing blade	137	Side plate	300	Shell body
						120	Fixed knife	138	Cantilever beam	310	Mounting opening
121	Shear cut	139	Via hole	400	Filling member
						130	Fixed knife support	140	Supporting spring plate	410	Comb teeth
131	Plastic piece	141	Connecting part	420	Carding gap
						132	Sliding connection main body	142	Elastic pre-pressing part	430	Hot melt hole
133	Positioning hole	143	Arc pushing surface

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The present utility model proposes a blade assembly for a hair trimmer.

In the embodiment of the present utility model, referring to fig. 1 to 4, the blade assembly 100 includes a movable blade 110, a fixed blade 120, a fixed blade bracket 130 and a supporting spring 140. The movable blade 110 is reciprocally movable in a predetermined direction, and the movable blade 110 has a shearing blade 111. The stationary knife 120 has a cutting opening 121, and the cutting opening 121 is used for allowing the object to be cut to extend into and cooperate with the cutting blade 111 to cut the object to be cut. The stationary knife holder 130 comprises a plastic member 131 and a support frame 136 connected to each other, and the stationary knife 120 is fixedly connected to the support frame 136. The supporting spring 140 includes a connecting portion 141 and an elastic pre-pressing portion 142, the connecting portion 141 is fixedly connected to the movable blade 110, the elastic pre-pressing portion 142 is located between the movable blade 110 and the plastic member 131, and the elastic pre-pressing portion 142 is reciprocally movably connected to the plastic member 131 along a predetermined direction and elastically pre-presses the movable blade 110 to the attaching fixed blade 120.

In this embodiment, the moving blade 110 and the fixed blade 120 may have various structures, which may be selected and designed according to practical requirements, and are not particularly limited herein. For example, a plurality of cutting blades 111 may be disposed on two opposite long sides of the movable blade 110, a plurality of cutting slits 121 may be disposed on the fixed blade 120 corresponding to the plurality of cutting blades 111, and when a cut object such as hair extends into the cutting blades 111 through the cutting slits 121, the movable blade 110 reciprocates along a predetermined direction relative to the fixed blade 120, and the cutting blades 111 of the movable blade 110 cooperate with the cutting slits 121 of the fixed blade 120 to cut the cut object.

The stationary knife holder 130 is used to provide support and mounting for the stationary knife 120. The plastic member 131 may be made of nylon, ABS, or other plastic materials. The supporting frame 136 may be made of metal or other materials, which is not particularly limited herein. The plastic piece 131 and the supporting frame 136 can be integrally formed or can be formed in a split mode, and when the plastic piece 131 and the supporting piece are formed in a split mode, the plastic piece 131 and the supporting piece can be fixedly connected through hot melting, screws and the like. There are many structures of the plastic member 131 and the supporting frame 136, the supporting frame 136 is used for fixing and supporting the fixed knife 120, and the plastic member 131 is used for providing support for the supporting spring 140.

The supporting spring 140 may be a sheet metal part, and the supporting spring 140 may be made of other materials with certain structural strength and elasticity. The shape and structure of the connection portion 141 may be varied, for example, the connection portion 141 may be rectangular, bar-shaped, circular, oval, ring-shaped, etc., and is not particularly limited herein. The connecting portion 141 may be fixedly connected to the movable blade 110 by welding or the like. In order to improve the structural strength, the connection portion 141 and the elastic pre-pressing portion 142 are integrally formed. Through set up between working of plastics 131 and moving sword 110 and support shell fragment 140 to with moving sword 110 elasticity pre-compaction to laminating stationary knife 120, can make moving sword 110 can be closely laminated with stationary knife 120 all the time, and then guarantee hair trimmer's shearing precision and pruning effect, avoid appearing the condition such as card hair.

The elastic pre-pressing portion 142 is located between the movable blade 110 and the plastic member 131, and the elastic pre-pressing portion 142 protrudes toward the plastic member 131 with respect to the connecting portion 141. Specifically, the elastic pre-pressing portion 142 may include one or more of an elastic arm, an arc-shaped protrusion. The elastic pre-pressing portion 142 can be reciprocally connected to the plastic member 131 along a predetermined direction, so that the elastic pre-pressing portion 142 can be directly abutted against the top surface of the plastic member 131, and a chute along the predetermined direction can be formed on the top surface, the side surface or other positions of the plastic member 131, such that one end of the elastic pre-pressing portion 142 facing away from the movable blade 110 is slidably mounted in the chute.

According to the blade assembly 100 of the hair trimmer, the movable blade 110 is elastically preloaded and attached to the fixed blade 120 through the supporting elastic sheet 140, so that the movable blade 110 can be tightly attached to the fixed blade 120 when moving back and forth along the preset direction, the cutting precision of the blade assembly 100 can be ensured, and the situation of hair blocking and the like can be effectively avoided. And by having the stationary blade holder 130 include a plastic member 131 and a supporting member; the supporting spring plate 140 includes a connecting portion 141 and an elastic pre-pressing portion 142 that are connected to each other, the connecting portion 141 of the supporting spring plate 140 is fixedly connected to the moving blade 110, and the elastic pre-pressing portion 142 of the supporting spring plate 140 is reciprocally movably connected to the plastic member 131 along a predetermined direction. Compared with the mode that the supporting elastic sheet 140 is fixedly connected with the fixed cutter bracket 130, the elastic pre-pressing part 142 of the supporting elastic sheet 140 is in sliding connection with the movable cutter 110, so that the elastic pre-pressing part 142 of the supporting elastic sheet 140 is in sliding connection with the plastic part 131 of the fixed cutter bracket 130, mutual friction of metal materials is avoided, noise can be reduced on one hand, friction force can be effectively reduced on the other hand, reciprocating movement of the movable cutter 110 is smoother, temperature rise caused by reciprocating friction of the supporting elastic sheet 140 is reduced, bending deformation of the fixed cutter 120 due to overhigh temperature rise is avoided, use comfort of a user is improved, energy consumption of a driving mechanism can be reduced, and power consumption rate of the whole machine is reduced.

In one embodiment, as shown in fig. 2, 4 and 7, the elastic pre-pressing portion 142 is an elastic cantilever extending downward from the connecting portion 141 and inclined away from the connecting portion 141; the plastic member 131 is located below the movable blade 110, and the lower end of the elastic cantilever is slidably connected to the plastic member 131 along a predetermined direction.

In the present embodiment, the elastic pre-pressing portion 142 is an elastic cantilever extending obliquely downward from the connecting portion 141, so that the structure is simple and reliable, and the molding is easy. It will be appreciated that the angle between the bottom surface of the resilient cantilever and the bottom surface of the connecting portion 141 is obtuse. The angle between the elastic cantilever and the connecting portion 141 can be adaptively adjusted and designed according to the distance between the movable blade 110 and the plastic member 131, which is not particularly limited herein. The lower extreme of elastic cantilever is the free end for the lower extreme of elastic cantilever is connected in the working of plastics 131 along predetermineeing the direction slidable, and when guaranteeing to support shell fragment 140 top to push and compress tightly movable knife 110 and stationary knife 120, the slip of the elastic cantilever of slope setting on working of plastics 131 is more smooth and steady reliable.

Further, the lower end of the elastic cantilever is formed with an arc pushing surface 143 extending along a preset direction in a bending manner, and the arc pushing surface 143 abuts against the top surface of the plastic part 131.

In this embodiment, when the movable blade 110 reciprocates along the preset direction, the arc pushing surface 143 can provide a guiding function for the movable blade 110, so that the elastic cantilever slides more smoothly and is free from the sliding of the elastic cantilever in the preset direction relative to the plastic member 131. The elastic cantilever is abutted against the top surface of the plastic part 131 through the arc pushing surface 143, so that the contact friction area between the elastic cantilever and the plastic part 131 can be effectively reduced, the friction force is further reduced, the reciprocating movement of the movable knife 110 is smoother, the friction area between the elastic cantilever and the plastic part 131 is reduced, the energy consumption of the driving mechanism can be reduced, and the power consumption rate of the whole machine is further reduced.

In an embodiment, referring to fig. 2, 4, 7 and 8, at least one elastic cantilever is connected to each of two ends of the connecting portion 141 in a predetermined direction; two ends of the supporting frame 136 in the preset direction are fixedly connected with a plastic piece 131 respectively; the connecting part 141 is fixedly connected to the middle part of the movable blade 110 in a preset direction; the arc pushing surface 143 of the elastic cantilever correspondingly abuts against the top surface of the plastic part 131.

In this embodiment, the connection portion 141 may specifically extend in a strip shape along a predetermined direction. The two ends of the connecting portion 141 in the preset direction are respectively connected with an elastic cantilever, and then the two ends of the moving blade 110 in the length direction are pushed to be attached to the fixed blade 120 through the elastic cantilevers, so that the stress of the moving blade 110 in the length direction is more uniform, and the situation that the moving blade 110 and the fixed blade 120 are blocked due to partial non-attachment is avoided. The arc pushing surfaces 143 of the two elastic cantilevers are slidably abutted against the top surfaces of the two plastic pieces 131, so that the friction force of the supporting elastic sheet 140 is further reduced. The two ends of the supporting frame 136 in the preset direction are respectively and fixedly connected with a plastic part 131, the connecting part 141 is fixedly connected to the middle part of the movable knife 110 in the preset direction, and then the two plastic parts 131 are respectively arranged at the two ends of the connecting part 141. It will be appreciated that the connecting portion 141 is fixed in the middle of the movable blade 110 in a predetermined direction, and that the drive shaft of the drive mechanism of the hair trimmer is typically connected to the middle of the movable blade 110. By providing two separate plastic pieces 131 slidably connected with the two elastic cantilevers of the supporting spring 140, respectively, the plastic pieces 131 of the stationary knife holder 130 can be prevented from interfering with the driving shaft of the driving mechanism.

In one embodiment, the supporting frame 136 is made of metal, and the plastic member 131 is welded to the supporting frame 136. The support 136 may be made of stainless steel, alloy, or other metal material. The supporting frame 136 is made of metal, so that the overall structural strength of the fixed cutter support 130 is higher than that of the plastic supporting frame 136, and the shearing precision of the whole cutter head assembly is prevented from being influenced by deformation of the fixed cutter support 130. The plastic piece 131 is welded to the supporting frame 136, and the connection mode is simple and reliable and is not easy to fall off.

Further, as shown in fig. 1 to 3 and 7, the supporting frame 136 includes two opposite side plates 137 and a cantilever beam 138 connecting the bottoms of the two side plates 137, and the side plates 137 extend along a predetermined direction; the plastic member 131 includes a sliding main body 132 and a first heat-melting column 134 connected to the bottom wall of the sliding main body 132; the cantilever beam 138 is provided with a via hole 139 corresponding to the first hot-melt column 134, and the first hot-melt column 134 is adaptively welded in the via hole 139 so as to fixedly connect the plastic piece 131 and the support frame 136; the support spring 140 is slidably connected to the sliding body 132.

In the present embodiment, the number of the suspension beams 138 can be adaptively adjusted according to the number of the plastic members 131, for example, when two plastic members 131 are provided, one suspension beam 138 is also provided at each end of the support frame 136 in the preset direction. Through making plastic part 131 include first butt fusion post, offer via 139 on hanging beam 138, when the assembly, plastic part 131 can be installed on hanging beam 138 through the assembly preset position of first butt fusion post and via 139 earlier, later through with first butt fusion post hot melt connect in via 139, this connected mode is simple swift, assembly efficiency is high.

In an embodiment, referring to fig. 1, 2, and 6 to 8, the blade assembly 100 further includes a decoration member 150 fixedly connected to two ends of the fixed blade 120 along a predetermined direction, a positioning post 151 is disposed on the decoration member 150, and a positioning hole 133 adapted to the positioning post 151 is formed on the sliding main body 132.

In this embodiment, the ornamental piece 150 is used to block the end of the entire blade assembly 100, so that the blade assembly 100 is more neat and beautiful overall. The structure and shape of the ornamental piece 150 may be varied and is not particularly limited herein, as long as it is capable of shielding the ends of the blade assembly 100 without affecting the shearing of the blade assembly 100. The fixed knife 120 and the decoration 150 can be fixedly connected by scarfing, welding and the like. Through setting up reference column 151 on decoration 150, set up locating hole 133 on slip main part 132, on the one hand can advance the location to the installation of decoration 150, promote the assembly accuracy of decoration 150, on the other hand working of plastics 131 and decoration 150 locate mode for slip main part 132 presss from both sides and establishes between decoration 150 and cantilever beam 138, can effectively avoid working of plastics 131 to drop, guarantees product quality.

The present utility model also proposes a hair trimmer cutter head 10, as shown in fig. 5 to 8, the hair trimmer cutter head 10 includes a cutting unit 200, a housing 300 and a blade assembly 100, the housing 300 is provided with a mounting opening 310, the blade assembly 100 and the cutting unit 200 are mounted at the mounting opening 310, the specific structure of the blade assembly 100 refers to the above embodiment, and since the hair trimmer cutter head 10 adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are not repeated herein.

Specifically, the blade assembly 100 and the cutting unit 200 are mounted side by side at the mounting opening 310, and the cutting unit 200 can shear the object to be sheared independently of the blade assembly 100. The number of the cutting units 200 and the blade assemblies 100 may be set to one, or may be set to two or more, and may be selected and designed according to actual needs, without being limited thereto. The structure of the cutting unit 200 may be the same as or different from that of the blade assembly 100. In actual use, the blade assembly 100 is made to cut longer hairs such as long hairs and the cutting unit 200 is made to cut shorter hairs such as short hairs. In this way, the user can choose to use different cutting units 200 according to different needs, without carrying and purchasing two hair trimmers with different functions separately, greatly improving the user experience. In the case where the cutting unit 200 is used to cut hair such as short hair, the specific structure of the cutting unit 200 may refer to the existing design, and is not particularly limited herein.

Further, the hair trimmer cutter head 10 further comprises a filler 400, the filler 400 being mounted at the mounting opening 310 and being arranged around the periphery of the blade assembly 100 to fill the gap between the blade assembly 100 and the periphery of the mounting opening 310; the plastic member 131 of the blade assembly 100 extends at least partially out of the support bracket 136 to fixedly attach to the filler member 400.

In this embodiment, the filling member 400 may be in a strip shape, and the filling member 400 may be in other shapes. The packing 400 may block the gap between the blade assembly 100 and the mounting port 310 to prevent dust and the like from entering the housing 300 from the mounting port 310, thereby improving the protection effect of the internal structure of the hair trimmer cutter head 10 and, in addition, improving the external appearance integrity of the hair trimmer cutter head 10. By making the plastic member 131 of the blade assembly 100 extend out of the supporting frame 136 at least partially to be fixedly connected with the filling member 400, so that the plastic member 131 is simultaneously fixed with different components of the blade assembly 100, the installation stability of the plastic member 131 can be further improved, and the plastic member 131 is prevented from falling off after long-term use.

Further, as shown in fig. 7 and 8, the bottom wall of the plastic part 131 is provided with a second heat-melting column 135, the filling part 400 is provided with a heat-melting hole 430 corresponding to the second heat-melting column 135, and the second heat-melting column 135 extends out of the supporting frame 136 to be mounted in the heat-melting hole 430 in an adapting manner.

In this embodiment, by providing the second welding post on the bottom wall of the plastic part 131, and providing the hot-melt hole 430 at the position of the filling part 400 corresponding to the second hot-melt post 135, when assembling, the whole blade assembly 100 is pre-positioned and mounted on the filling part 400 through the assembly of the second hot-melt post 135 and the hot-melt hole 430, and then the second welding post is connected in the hot-melt hole 430 in a hot-melt manner, so that the fixed mounting of the whole blade assembly 100 and the filling part 400 can be realized. The blade assembly 100 is fixedly connected with the filling member 400 through the second hot-melt column 135 of the plastic member 131, and other connecting structures are not required to be additionally arranged to connect the blade assembly 100 and the filling member 400, so that the whole assembly mode is simple and rapid, and the assembly effect is high.

In an embodiment, referring to fig. 5 and 6, a plurality of cutouts 121 are formed on the side edge of the stationary blade 120; the filling member 400 is provided with a plurality of comb teeth 410 corresponding to the plurality of shear cuts 121, and comb gaps 420 are formed between adjacent comb teeth 410, and each comb gap 420 is opposite to at least one shear cut 121.

In this embodiment, one combing gap 420 is opposite to at least one shear cut 121, and the width of the combing gap 420 may be made larger than the width of the shear cut 121. Taking the beard as the object to be sheared, the beard can be dispersed into a plurality of strands by the comb teeth 410 of the filling member 400 before the beard is sheared, so that the beard entering each shearing opening 121 of the fixed cutter 120 is more uniform, the beard is prevented from being sheared by partial shearing teeth, and the shearing difficulty of the other shearing teeth is higher. Optionally, in addition, each comb gap 420 is opposite at least two shear cuts 121. Thus, the beard after being primarily dispersed by the comb teeth 410 can be secondarily dispersed by the cutting teeth when entering the cutting slits 121, thereby being dispersed into more smaller beard bundles; the amount of beard entering each of the cutouts 121 can be made more uniform, so that the cutting effect on beard can be further improved.

The present utility model also proposes a hair trimmer comprising a driving mechanism and a hair trimmer head 10, the specific structure of the hair trimmer head 10 refers to the above embodiment, and since the hair trimmer adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein. The hair trimmer may be a shaver, a hair clipper, a hair trimmer, or the like. The driving mechanism can be a driving motor, and the specific structure and type of the driving motor can refer to the existing design, and are not described herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. A blade assembly for a hair trimmer, the blade assembly comprising:

the movable cutter can reciprocate along a preset direction and is provided with a shearing blade;

the fixed knife is provided with a shearing opening, and the shearing opening is used for enabling an object to be sheared to extend into and be matched with the shearing blade so as to cut the object to be sheared;

the fixed knife support comprises a plastic piece and a support frame which are connected with each other, and the fixed knife is fixedly connected with the support frame; and

the elastic pre-pressing part is positioned between the movable cutter and the plastic piece, can be connected with the plastic piece in a reciprocating manner along a preset direction, and is used for elastically pre-pressing the movable cutter to be attached to the fixed cutter.

2. The blade assembly of claim 1, wherein the resilient pre-load portion is a resilient cantilever extending obliquely downward from and away from the connecting portion; the plastic piece is positioned below the movable knife, and the lower end of the elastic cantilever is slidably connected with the plastic piece along a preset direction.

3. The blade assembly of claim 2, wherein the lower end of the resilient cantilever is formed with an arcuate pushing surface extending in a curved manner along the predetermined direction, the arcuate pushing surface abutting the top surface of the plastic member.

4. A blade assembly according to claim 3, wherein the connecting portion has at least one of the elastic cantilevers connected to each of both ends thereof in the predetermined direction; the two ends of the support frame in the preset direction are fixedly connected with one plastic piece respectively; the connecting part is fixedly connected to the middle part of the movable knife in the preset direction; the arc pushing surface of the elastic cantilever is correspondingly abutted to the top surface of the plastic piece.

5. The blade assembly of any one of claims 1 to 4, wherein the support frame is of a metallic material and the plastic member is welded to the support frame.

6. The blade assembly of claim 5, wherein the support frame comprises two oppositely disposed side plates and a cantilever beam connecting the bottoms of the two side plates, the side plates extending in the predetermined direction; the plastic piece comprises a sliding connection main body and a first hot melting column connected to the bottom wall of the sliding connection main body; the cantilever beam is provided with a via hole corresponding to the first hot-melt column, and the first hot-melt column is adaptively welded in the via hole so as to fixedly connect the plastic piece and the support frame; the support spring piece is slidably connected with the sliding connection main body.

7. The blade assembly of claim 6, further comprising a decorative piece fixedly connected to two ends of the fixed blade along a preset direction, wherein a positioning column is arranged on the decorative piece, and a positioning hole matched with the positioning column is formed in the sliding main body.

8. A hair trimmer cutter head comprising a cutting unit, a blade assembly according to any one of claims 1 to 7 and a housing, said housing having a mounting opening, said blade assembly and said cutting unit being mounted at said mounting opening.

9. A hair trimmer cutter head according to claim 8 wherein said hair trimmer cutter head further comprises a filler member mounted at said mounting opening and circumferentially disposed about said blade assembly to fill a gap between said blade assembly and a periphery of said mounting opening; the plastic part of the blade assembly at least partially extends out of the supporting frame of the blade assembly to be fixedly connected with the filling part.

10. A hair trimmer cutter head according to claim 9 wherein said plastic member has a second heat stake on a bottom wall thereof, said filler member having heat stake holes corresponding to said second heat stake, said second heat stake extending out of said support frame for fitting within said heat stake holes.

11. A hair trimmer cutter head according to claim 9 or claim 10 wherein a plurality of cutouts are provided in the side edges of the stationary blade of the blade assembly; the filling piece is provided with a plurality of comb teeth corresponding to the plurality of shear cuts, a carding gap is formed between every two adjacent comb teeth, and each carding gap is opposite to at least one shear cut.

12. A hair trimmer according to any one of claims 8-11 comprising a drive mechanism and a hair trimmer head, the drive shaft of said drive mechanism being drivingly connected to the cutting unit and the movable blade of said blade assembly.