CN212241134U

CN212241134U - Razor head of blade subassembly and applied this blade subassembly

Info

Publication number: CN212241134U
Application number: CN201922162611.7U
Authority: CN
Inventors: 孙海勇
Original assignee: Yuanhai Medical Technology Co ltd
Current assignee: Yuanhai Medical Technology Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-12-29
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a blade component and razor head using the blade component, comprising a static knife, a moving knife and an elastic supporting component, wherein the static knife is provided with two opposite static knife walls and an installation cavity enclosed by the two static knife walls, an opening is arranged between the two static knife walls, one ends of the two static knife walls are connected to form a shearing part, and the shearing part is provided with a burr inlet to form static knife teeth; the movable knife is positioned in the mounting cavity and reciprocates relative to the static knife, a movable knife tooth part is formed at the position of the movable knife corresponding to the shearing part, and the movable knife tooth part is provided with movable knife teeth; the elastic supporting component is connected with the static knife and has elastic force perpendicular to the moving direction of the moving knife, and the end edge of the moving knife tooth part of the moving knife is constantly attached to the shearing part under the action of the elastic force. Blade subassembly move the permanent subsides of sword tooth portion shear part, the design of this kind of seamless laminating can cut shorter hair under the prerequisite of guaranteeing blade subassembly normal use, and cut effectually, the comfort level is high.

Description

Razor head of blade subassembly and applied this blade subassembly

Technical Field

The utility model relates to a hair cutting device, in particular to a blade component and a shaver head using the blade component.

Background

A blade set, a hair cutting appliance and an associated method of manufacture are disclosed in the patent application No. 201510185524.7. In particular, the blade set comprises a stationary blade and a movable blade, wherein the movable blade can be driven in a reciprocating manner with respect to the stationary blade for cutting hair. The fixed blade comprises an upper fixed blade and a lower fixed blade, a slot is formed between the two fixed blades, and the movable blade is inserted into the slot and driven by a driving mechanism to reciprocate along the slot to form shearing with the fixed blade. In order to achieve a better cutting effect by cutting shorter hairs, a supporting structure (a fixed blade seat) used in cooperation with a fixed blade needs to be arranged to increase the strength of the fixed blade, so that the phenomenon that the moving blade shakes or jumps when the moving blade is used due to the fact that the fixed blade bends and deforms in the direction perpendicular to the moving direction of the moving blade is avoided. In contrast, the fixed blade is formed in an unclosed sheet structure, and the support structure is used for sealing the opening of the sheet structure and enhancing the strength of the fixed blade. Thus arranged, a mounting space is formed between the fixed blade and the supporting structure, and the movable blade is arranged in the mounting space in a reciprocating manner. Due to the high precision required by the razor in cutting, the requirements on the fit of the various elements in the razor blade set are high, and even if the precision required is a few tenths of a millimeter worse, the hair may not be cut and may be pulled or jump. The die opening cost and the difficulty of the manufacturing process are multiplied for each added element. As can be appreciated from the foregoing description of the prior art, none of the existing razor blade sets addresses the problems of the strength, cutting effect, and manufacturing process of the razor at the same time.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a razor tool bit of blade subassembly and applied this blade subassembly, through the great deal of problem of prior art can be solved simultaneously in setting up of blade subassembly.

The utility model discloses a blade subassembly, include:

the fixed cutter is provided with two opposite fixed cutter walls and an installation cavity defined by the two fixed cutter walls, at least one opening is formed between the two fixed cutter walls, one ends of the two fixed cutter walls are connected to form a shearing part, and the shearing part is provided with a burr inlet to form fixed cutter teeth;

the movable knife is positioned in the mounting cavity and reciprocates relative to the static knife, a movable knife tooth part is formed at the position of the movable knife corresponding to the shearing part, and the movable knife tooth part is provided with movable knife teeth;

the elastic supporting component is connected with the static knife or the movable knife and has an elastic force vertical to the moving direction of the movable knife, and the end edge of the movable knife tooth part of the movable knife is constantly attached to the shearing part under the action of the elastic force;

the section of the shearing part in the direction vertical to the moving direction of the movable knife is in an inverted U shape.

Further, two stationary blade walls of the stationary blade are arranged in parallel, and the opening is formed on the side opposite to the cutting portion.

Furthermore, the movable knife is provided with two movable knife walls which are arranged oppositely, and one ends of the two movable knife walls are connected to form the movable knife tooth part.

Furthermore, the two movable blade walls are formed by folding a movable blade body, the movable blade body is provided with a central line parallel to the moving direction of the movable blade, the movable blade body is provided with a plurality of long holes side by side along the central line, and the movable blade teeth are formed between the corresponding long holes after the movable blade is folded along the central line.

Furthermore, each movable cutter tooth is provided with a movable cutter tooth root and a movable cutter tooth end edge which are opposite to each other, one end, far away from the central line, of each movable cutter tooth is the movable cutter tooth root, the cross section of each movable cutter tooth end edge is a cutting surface symmetrically arranged along the central line, and each cutting surface is a triangle inclining towards the movable cutter tooth root from the central line.

Further, the blade assembly further comprises a support, the support is provided with a mounting hole, and the static blade wall extends into the mounting hole and is connected with the elastic supporting assembly.

Furthermore, the blade component also comprises a movable blade fixing frame which is provided with a movable blade fixing hole, the movable blade fixing frame is connected with the elastic supporting component, the movable blade fixing hole extends along the movable blade moving direction, and the movable blade extends into the movable blade fixing hole and reciprocates under the guidance of the movable blade fixing hole.

Further, the blade assembly further comprises a movable blade fixing frame, the movable blade fixing frame is provided with a movable blade fixing hole, the movable blade fixing frame is connected with the support, the movable blade fixing hole is opposite to and communicated with the mounting hole, the movable blade fixing hole extends along the movable blade moving direction, and the movable blade extends into the movable blade fixing hole and moves in a reciprocating mode under the guidance of the movable blade fixing hole.

Furthermore, the elastic support component is connected with the static knife in a limiting manner, so that the static knife is fixed relative to the elastic support component in the direction of moving the movable knife vertically and in the moving direction of the movable knife, the elastic support component is provided with at least one elastic part, and the elastic part presses the movable knife in the direction of moving the movable knife vertically so that the tail end of the movable knife tooth part of the movable knife is abutted against the inner wall of the shearing part of the static knife.

Furthermore, the elastic support assembly is also provided with a support seat, the elastic piece is arranged on one side of the support seat facing the static knife, the support seat is provided with two support walls, and the static knife wall is correspondingly connected with the support walls.

Furthermore, the support is connected with the supporting seat, the outside of the support is provided with a buckle structure at a position corresponding to each supporting wall, and the supporting walls are provided with a connecting structure matched with the buckle structure.

Furthermore, move the sword mount and be located the mounting hole, move the sword mount and set up direction locating part, move the sword mount and have two around move the sword fixed orifices and relative direction lateral wall that sets up, direction locating part is moved the sword fixed orifices protrusion by the direction lateral wall that corresponds.

Furthermore, the section of the static knife teeth and the section of the movable knife teeth along the moving direction of the vertical movable knife are in an inverted U shape, and the fit clearance between the two sides of the U is 0-0.06 mm.

Furthermore, the elastic support component is provided with two elastic pieces, the elastic pieces are arranged at intervals along the moving direction of the movable knife, and the movable knife is provided with a limiting structure which is matched with the elastic pieces to limit the movement of the movable knife.

The utility model also provides a razor tool bit, including adapting unit and as above any blade subassembly, adapting unit interlock move the sword motion.

The beneficial effects of the utility model reside in that: the blade assembly of the utility model utilizes the elastic force of the elastic supporting assembly to ensure that the movable blade tooth part is constantly and tightly attached to the shearing part on the movable blade, and the shearing design of seamless attachment can cut shorter hair on the premise of ensuring the normal use of the blade assembly and has good shearing effect; the seamless connection ensures that the blade component can not cause hair pulling during shaving, and the comfort level is high; the movable knife is folded and formed, a triangular cutting surface is formed at the edge of the tooth end of the movable knife, and the sharpness of the movable knife is improved by the cutting edge formed by the triangle on the cutting surface, so that the hair can be shaved more quickly and accurately; the movable knife fixing frame is arranged to support the movable knife and the static knife, so that the rigidity of the movable knife and the static knife is improved, the movable knife and the static knife are prevented from being deformed due to extrusion during installation and use, the stability of the whole structure is improved, and the assembly and process management and control are facilitated; the support is arranged to further position the static knife and the movable knife in the assembling process, and the support forms a protective support for the peripheries of the static knife and the movable knife in the assembling process, so that the stability of the whole structure is further improved; that is to say, compared with the traditional blade assembly, the blade assembly provided by the utility model has simpler structural design, simpler assembly process and lower manufacturing cost, and can realize better cutting effect; in addition, the U-shaped matching reduces the contact area of the movable cutter and the static cutter under the condition of ensuring seamless connection, thereby reducing the friction between the movable cutter and the static cutter, and the shaver has low temperature rise, small current and longer service life in the working process.

Drawings

Fig. 1 is a perspective view of a razor head according to a first embodiment of the present invention.

Fig. 2 is an exploded perspective view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a sectional view taken along a-a in fig. 3.

Fig. 5 is a schematic structural view of the movable blade before folding.

Fig. 6 is a schematic structural view of the movable blade after being folded.

Fig. 7 is a schematic structural view of a second embodiment of the blade assembly of the present invention.

Fig. 8 is an exploded perspective view of fig. 7.

Fig. 9 is a side view of fig. 7.

Fig. 10 is a sectional view taken along the direction B-B in fig. 9.

Fig. 11 is a sectional view taken along the direction C-C in fig. 10.

Fig. 12 is a sectional view taken along the direction D-D in fig. 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention is further described with reference to the accompanying drawings.

As shown in the attached drawings 1-6, for the first preferred embodiment of the razor head of the blade assembly and the razor head using the blade assembly of the present invention, the following detailed description is made to the present embodiment:

as shown in fig. 1, the razor head includes a blade assembly 1 and a connecting member 2, and the connecting member 2 is connected to a driving source to further move the movable blade. The driving source may be a motor (not shown in the drawings provided by the present invention), and the blade assembly 1 includes a stationary blade 3, a movable blade 4 and an elastic support assembly 5. Specifically, the stationary knife 3 is provided with two opposite stationary knife walls 31 and an installation cavity 32 surrounded by the two stationary knife walls 31, at least one opening is formed between the two stationary knife walls 31 for installing the moving knife 4, one ends of the two stationary knife walls 31 are connected in an arc shape to form a shearing part 33, and the shearing part 33 is provided with a burr 34 and forms a stationary knife tooth 35; the movable knife 4 is positioned in the mounting cavity 32 and reciprocates relative to the fixed knife 3, the movable knife 4 forms a movable knife tooth part 41 at a position corresponding to the shearing part 33, and the movable knife tooth part 41 is provided with movable knife teeth 42; the elastic supporting component 5 is connected with the stationary knife 3, the elastic supporting component 5 is provided with an elastic piece 52, the elastic piece 52 has an elastic force vertical to the moving direction of the movable knife 4, and the end edge of the movable knife tooth part 41 of the movable knife 4 is constantly attached to the arc-shaped end edge of the shearing part 33 under the action of the elastic force. The thickness of the static knife 3 is 0.1-0.8 mm.

Further, the two stationary blade walls 31 of the stationary blade 3 are arranged in parallel, the opening is formed on the side opposite to the cutting portion 33, and the section of the cutting portion 33 in the direction perpendicular to the moving direction of the movable blade 4 is inverted U-shaped. The section of the movable cutter teeth 42 along the direction vertical to the moving direction of the movable cutter 4 is inverted U-shaped. Under the action of the elastic force of the elastic supporting component 5, the arc-shaped part of the movable cutter tooth 42 with the inverted U-shaped section is tightly attached to the shearing part 33 with the inverted U-shaped section, so that the curved surface type hair shaving at the whole U-shaped end part is realized, the applicability is stronger, and the comfort level is higher. The fit clearance between the movable cutter teeth 42 and the two sides of the U of the cutting part 33 is 0-0.06 mm, and due to the clearance arrangement, hair can not be napped due to overlarge gaps when entering normally.

Specifically, the movable blade 4 may be a single sheet-shaped structure, and the movable blade teeth 42 are directly formed at one end of the movable blade that is matched with the cutting portion 33 of the stationary blade 3. In addition, the movable blade 4 may be configured to have two opposite movable blade walls 43, the two movable blade walls 43 are located inside the two stationary blade walls 31, and one end of each of the two movable blade walls 43 is connected to form the movable blade tooth portion 41. The two movable blade walls 43 can be formed by bending a movable blade body 44 in a U shape, and the two movable blade walls 43 are spaced from each other, that is, a gap is formed between the two movable blade walls; it is also possible to fold a movable blade body 44 to form the movable blade, and the two movable blade walls 43 are overlapped with each other, that is, they are attached to each other.

Specifically, as shown in fig. 5 and 6, two movable blade walls 43 are shown to be formed by folding a movable blade body 44: the movable blade body 44 is provided with a central line parallel to the moving direction of the movable blade 4, the movable blade body 44 is provided with a plurality of strip holes 62 in parallel along the central line, and the movable blade teeth 42 are formed between the corresponding strip holes 62 after the movable blade 44 is folded along the central line. Each movable cutter tooth 42 is provided with a movable cutter tooth root part 60 and a movable cutter tooth end edge 61 which are opposite, the movable cutter tooth root part 60 is arranged at one end of the movable cutter tooth 42 far away from the central line, the section of the movable cutter tooth end edge 61 is a cutting surface 45 which is symmetrically arranged along the central line, and the cutting surface 45 is an upright triangle which is inclined from the central line to the movable cutter tooth root part 60. That is to say, the movable blade 4 formed by folding forms a triangular cutting surface 45 at the end edge 61 of the movable blade tooth, and the cutting edge formed by the triangle on the cutting surface 45 can improve the sharpness of the movable blade, so that the hair can be shaved more quickly and accurately.

Further, in order to strengthen the stability of the whole structure and improve the strength of the movable knife 4 and the static knife 3, the blade assembly 1 further comprises a support 21, the support 21 is connected with the elastic supporting assembly 5, the support 21 is provided with a mounting hole 22, and the static knife wall 31 extends into the mounting hole and is connected with the elastic supporting assembly 5. The material of the bracket 21 and the material of the joint of the elastic supporting component 5 and the bracket 21 can be both metal, and the two are formed by welding; or the components are all made of plastic materials and are fixed through hot melting welding; or the bracket 21 is made of non-metal materials such as plastics, and the connecting part of the elastic supporting component 5 and the bracket 21 is made of materials such as metal, alloy and stainless steel, and the two are detachably connected by arranging a connecting structure. In this embodiment, the support 21 is made of plastic, the connection portion between the elastic support component 5 and the support 21 is made of metal material, the support 21 is provided with the protruding buckle 23, and the elastic support component 5 is provided with the hole 57 (or the groove) matched with the buckle 23, so as to realize detachable buckle connection between the two. In practical implementation, the bracket 21 may be provided with a slot or a hole, and the elastic support component 5 may be provided with a structure such as a buckle 23 or a hook leg, which is matched with the slot or the hole.

Specifically, the elastic support assembly 5 further has a support seat 51, the elastic member 52 is mounted on one side of the support seat 51 facing the stationary blade 3, the support seat 51 has two flexible support walls 53, and the stationary blade wall 31 is correspondingly connected to the support walls 53. The stationary blade wall 31 and the corresponding support wall 53 may be welded or snap-fit connected, etc. In this embodiment, the stationary blade wall 31 and the support wall 53 are fixed by welding.

The support 21 is connected with the elastic support assembly 5 through the support seat 51, the outside of the support 21 is provided with a buckle structure at a position corresponding to each support wall 51, and the support walls 51 are provided with a connecting structure matched with the buckle structure. Specifically, as described above, the snap structure may be a protruding snap 23 disposed on the outer side of the bracket, and the connection structure may be a through hole 57 formed in the flexible support wall 53.

In order to increase the rigidity of the stationary knife 3 and the movable knife 4 and prevent the stationary knife 3 and the movable knife 4 from bending and deforming due to the extrusion of external force during installation or use, the blade assembly 1 further comprises a movable knife fixing frame 46, and the movable knife fixing frame 46 comprises a movable knife fixing hole 47. The movable blade fixing frame 46 may be connected to the elastic support assembly 5 or to the support 21. The movable blade fixing hole 47 extends along the moving direction of the movable blade 4, and the movable blade 4 extends into the movable blade fixing hole 47 and reciprocates under the guidance of the movable blade fixing hole 47. Specifically, in the present embodiment, as shown in fig. 2, the movable blade holder 46 is connected to the support 21, and similarly, the movable blade holder and the support may be welded, riveted, fastened, and the like. In this embodiment, the two are detachably connected by a snap connection: the bracket 21 has a side wall 24 surrounding the mounting hole 22, a protrusion 241 is protruded from the inner side of the side wall 24, and the movable blade holder 46 has a connecting hole 461 engaged with the protrusion 25.

The movable blade fixing hole 47 is opposite to and communicated with the mounting hole 22, the movable blade fixing hole 47 extends along the moving direction of the movable blade 4, and the movable blade 4 extends into the movable blade fixing hole 47 and moves in a reciprocating manner under the guidance of the movable blade fixing hole 47.

The movable blade fixing frame 46 is located in the mounting hole 22 of the bracket 21, and the movable blade fixing frame 46 is provided with a guide limiting piece 48 for guiding the movable blade 4 to move. The movable blade holder 46 has two guide sidewalls 49 surrounding the movable blade holder hole 47 and disposed opposite to each other, and the guide stoppers 48 protrude from the corresponding guide sidewalls 49 toward the movable blade holder hole 47. The number of the guide limiting parts 4 is at least two, the two guide limiting parts 48 are respectively positioned on the corresponding guide side walls 49, and the two guide limiting parts 48 can be arranged oppositely or alternatively arranged along the moving direction of the movable knife 4. In the embodiment shown in fig. 2, four wire position-limiting members 48 are provided as an example, and the four guiding position-limiting members 48 are arranged in pairs; similarly, the four guiding position-limiting members 48 may be alternately arranged along the moving direction of the movable blade 4. The movable blade 4 is retained between the guide retainers 48. After the arrangement, the movable knife 4 is more stable in the moving process, the phenomena of shaking and knife jumping cannot occur, and the hair is cut more safely; in addition, after the guide limiting pieces 48 are arranged, the moving knife 4 and the static knife 3 are aligned transversely more accurately, and the size is controlled better.

Through the above description to the embodiment of the utility model discloses, elastic support component 5 makes with 3 spacing connections of quiet sword 3 move the direction that sword 4 removed perpendicularly and along moving the sword 4 moving direction homogeneous phase and fixed relative elastic support component 5. In this embodiment, the elastic support assembly 5 has two elastic members 52 (using springs as elastic members), and the elastic members 52 press the movable blade 4 in a direction perpendicular to the moving direction of the movable blade 4, so that the end of the movable blade tooth portion 41 of the movable blade 4 abuts against the inner wall of the stationary blade cutting portion 33. The inner wall of the static knife cutting part 33 is provided with an arc-shaped wall 34 attached to the movable knife tooth part 41. After the elastic support assembly 5 is fixed relative to the stationary blade 3, the elastic member 52 is compressed to accumulate elastic potential energy, so that the elastic member 52 constantly presses the movable blade 4 in a direction perpendicular to the moving direction of the movable blade 4. The utility model discloses a this kind of "U" type cooperation makes to move sword 4 and close quiet sword 3 under the condition of guaranteeing seamless connection, has reduced area of contact to reduced and moved the friction between sword 4 and the quiet sword 3, the temperature rise of razor in the course of the work is low, the electric current is little, and life is longer.

Referring to fig. 7-12, a second preferred embodiment of the blade assembly of the present invention is different from the first preferred embodiment in that: the bracket 21 and the movable blade holder 46 are removed. That is, the blade assembly includes a stationary blade 3, a movable blade 4 and an elastic supporting assembly 5, the elastic supporting assembly 5 has an elastic supporting assembly body 50 and two elastic members 52 connected to the elastic supporting assembly body 50, and the two elastic members 52 are disposed at intervals along the moving direction of the movable blade 4. Specifically, the elastic supporting assembly body 50 has two fixing walls 54 fixed to the fixed knife 3 in a shielding manner, the fixed knife wall 31 is located between the two fixing walls 54, and the fixed knife wall 31 may be in snap connection with the two fixing walls 54 or directly welded and fixed. In the present embodiment, the two are welded and fixed. The elastic member 52 has an elastic force constantly acting on the movable blade 4 so that the movable blade teeth 42 of the movable blade 4 abut against the inner arc surface of the shearing part 33 of the stationary blade. Specifically, the movable blade 4 has a limiting structure for limiting the reciprocating movement amplitude of the movable blade, and the limiting structure is matched with the two elastic pieces 52 to limit the movement of the movable blade 4. The limiting structure may be a shallow groove or a continuous rib formed at the lower part of the movable blade, or as shown in fig. 8, the limiting structure is at least two limiting walls 54 formed at the bottom of the movable blade 4, the two limiting walls 54 are arranged at intervals along the moving direction of the movable blade 4, and the distance between the two limiting walls 54 is smaller than the distance between the two elastic members 52. Specifically, the elastic members 52 are flexible elastic walls extending toward the movable blade 4, and the ends of the two elastic members 52 elastically abut against the movable blade 4. The elastic element 52 arranged in this way has the function of elastically supporting the movable blade 4, so that the movable blade tooth part 41 is constantly attached to the shearing part of the stationary blade 3 in the direction perpendicular to the moving direction of the movable blade 4, and the moving of the movable blade can be limited. The element has two functions, is simple in structural design, does not need additional parts to be matched and is convenient to assemble.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A blade assembly, comprising:

2. The blade assembly of claim 1, wherein: the two static blade walls of the static blade are arranged in parallel, and the opening is formed on the side opposite to the shearing part.

3. The blade assembly of claim 1, wherein: the movable knife is provided with two movable knife walls which are arranged oppositely, and one ends of the two movable knife walls are connected to form the movable knife tooth part.

4. The blade assembly of claim 3, wherein: the two movable blade walls are formed by folding a movable blade body, the movable blade body is provided with a central line parallel to the moving direction of the movable blade, the movable blade body is provided with a plurality of strip-shaped holes side by side along the central line, and the movable blade teeth are formed between the corresponding strip-shaped holes after the movable blade is folded along the central line.

5. The blade assembly of claim 4, wherein: each movable cutter tooth is provided with a movable cutter tooth root and a movable cutter tooth end edge which are opposite, one end, far away from the central line, of each movable cutter tooth is the movable cutter tooth root, the cross section of each movable cutter tooth end edge is a cutting surface symmetrically arranged along the central line, and each cutting surface is a triangle inclining towards the movable cutter tooth root from the central line.

6. The blade assembly of claim 1, wherein: the blade assembly further comprises a support, the support is provided with a mounting hole, and the static blade wall extends into the mounting hole and is connected with the elastic supporting assembly.

7. The blade assembly of claim 1, wherein: the blade component further comprises a movable blade fixing frame, the movable blade fixing frame is provided with a movable blade fixing hole, the movable blade fixing frame is connected with the elastic supporting component, the movable blade fixing hole extends along the movable blade moving direction, and the movable blade extends into the movable blade fixing hole and reciprocates under the guidance of the movable blade fixing hole.

8. The blade assembly of claim 6, wherein: the blade component further comprises a movable blade fixing frame, the movable blade fixing frame is provided with a movable blade fixing hole, the movable blade fixing frame is connected with the support, the movable blade fixing hole is opposite to and communicated with the mounting hole, the movable blade fixing hole extends along the movable blade moving direction, and the movable blade extends into the movable blade fixing hole and moves in a reciprocating mode under the guidance of the movable blade fixing hole.

9. The blade assembly of any one of claims 1 to 8, wherein: the elastic support component is connected with the static knife in a limiting mode, so that the static knife is fixed relative to the elastic support component in the direction of moving the knife vertically and in the moving direction of the moving knife, the elastic support component is provided with at least one elastic part, and the elastic part presses the moving knife in the direction of moving the knife vertically so that the tail end of the moving knife tooth part of the moving knife abuts against the inner wall of the static knife shearing part.

10. The blade assembly of claim 9, wherein: the elastic support assembly is further provided with a support seat, the elastic piece is installed on one side, facing the static knife, of the support seat, the support seat is provided with two support walls, and the static knife wall is correspondingly connected with the support walls.

11. The blade assembly of claim 10, wherein: the blade assembly further comprises a support, the support is connected with the supporting seat, the positions, corresponding to the supporting walls, of the outer side of the support are provided with buckle structures, and the supporting walls are provided with connecting structures matched with the buckle structures.

12. The blade assembly of claim 7 or 8, wherein: the movable knife fixing frame is located in the mounting hole, the movable knife fixing frame is provided with a guide limiting part, the movable knife fixing frame is provided with two guide side walls which surround the movable knife fixing hole and are arranged oppositely, and the guide limiting part protrudes from the corresponding guide side walls towards the movable knife fixing hole.

13. The blade assembly of claim 1, wherein: the section of the static knife teeth and the section of the movable knife teeth along the moving direction of the vertical movable knife are both in an inverted U shape, and the fit clearance between the two sides of the U shape is 0-0.06 mm.

14. The blade assembly of claim 9, wherein: the elastic support component is provided with two elastic pieces, the elastic pieces are arranged at intervals along the moving direction of the movable knife, and the movable knife is provided with a limiting structure which is matched with the elastic pieces to limit the movement of the movable knife.

15. A razor cartridge characterized by: the blade assembly of any one of claims 1 to 13, comprising a connecting member and the blade assembly, wherein the connecting member is used for linking the moving blade to move.