Blade assembly

Abstract

A blade assembly comprises a static cutter and a movable cutter, and hair can enter the blade assembly conveniently by arranging a tooth groove of the static cutter to be of a through structure, so that the cutting efficiency is improved. Meanwhile, the design of the U-shaped opening of the tooth groove of the movable cutter is matched with the arrangement of the check block, hair which is not cut completely can be blocked, the hair which is not cut completely is prevented from being brought out, and therefore the galling phenomenon is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair cutting device technical field, concretely relates to a blade assembly. BACKGROUND

[0002] In prior art, the static blade tooth groove in U-shaped blade assembly is mostly non-through structure, which will affect the hair feeding, and the dynamic blade tooth groove is mostly through structure, the through dynamic blade tooth groove is easy to cause the hair not to be cut completely and be taken out, thereby producing the hair pulling phenomenon. SUMMARY

[0003] Therefore, the utility model provides a kind of blade assembly.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of blade assembly, including static blade and dynamic blade, the outer surface of dynamic blade under the action of external force always keeps adhering with the inner surface of static blade;It is equipped with several static blade tooth grooves of interval arrangement on static blade, and static blade tooth is formed between adjacent static blade tooth grooves;From the static blade two sides any side, each static blade tooth groove is through the front and two side walls of static blade and forms U-shaped opening, and static blade tooth groove depth is less than static blade two side wall height;It is equipped with several dynamic blade tooth grooves of interval arrangement on dynamic blade, and dynamic blade tooth is formed between adjacent dynamic blade tooth grooves, from the dynamic blade two side walls any side, each dynamic blade tooth groove is through the front and two side walls of dynamic blade and forms U-shaped opening, and it is equipped with the stopper connecting the two sides of dynamic blade tooth groove at the U-shaped opening of dynamic blade tooth groove, and the stopper in each dynamic blade tooth groove is on the same and / or different axis.

[0006] Preferably, the dynamic blade tooth includes two end teeth arranged at the two ends of the dynamic blade and intermediate teeth arranged at equal intervals between the end teeth, the stopper extends from the center position of one end tooth to the center position of the other end tooth in a straight line structure, and the part of the stopper between the two end teeth is connected to the center position of the intermediate teeth.

[0007] Preferably, the stopper separates the intermediate teeth into two side teeth arranged symmetrically, and a side tooth groove is formed in the side teeth.

[0008] Preferably, the stoppers in adjacent dynamic blade tooth grooves are arranged in a staggered structure.

[0009] Preferably, the outer surface of the dynamic blade tooth is provided with a continuous and through surface tooth groove, and the surface tooth groove extends from the center of the dynamic blade tooth to both sides.

[0010] Preferably, the dynamic blade tooth groove is arranged in a non-linear shape.

[0011] Preferably, there is a maximum distance L1 between the two side walls of the movable blade teeth, and the maximum distance L1 between the two side walls of the movable blade teeth is greater than the maximum width L2*1.2 of the movable blade tooth grooves between adjacent movable blade teeth.

[0012] Preferably, there is a maximum distance L3 between the two side walls of the movable blade teeth, and the size of L3 is 0.25-1 mm. The width of the movable blade tooth groove between adjacent movable blade teeth is L4, and the size of L4 is 0.3-1 mm.

[0013] Preferably, the shape of the static blade tooth groove is a straight line.

[0014] Preferably, the movable knife has a movable knife tooth portion, and the stationary knife has a stationary knife tooth portion, and both the movable knife tooth portion and the stationary knife tooth portion are arc surfaces or plane surfaces.

[0015] The beneficial effect of the present invention is that by configuring the static blade slots as a through structure, hair can be easily entered, thereby improving cutting efficiency. At the same time, the U-shaped opening design of the movable blade slots, combined with the provision of a stopper, can block uncut hairs, preventing uncut hairs from being dragged out and causing hair pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Attachment Figure 2 For attachment Figure 1 Structural decomposition diagram;

[0019] Attachment Figure 3 A schematic diagram of a movable knife structure in another embodiment;

[0020] Attachment Figure 4 For attachment Figure 1 Enlarged view of point A in the middle;

[0021] Attachment Figure 5 For attachment Figure 3 Enlarged view of point B in the middle;

[0022] Attachment Figure 6 For attachment Figure 2 Enlarged view of point C in the middle;

[0023] Attachment Figure 7The schematic view of the S-shaped structure of the moving blade tooth groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The utility model will be further described below with reference to the drawings in the description.

[0026] The utility model provides the following technical scheme:

[0027] As shown in the accompanying Figures 1-7 The utility model discloses a blade assembly which comprises a static blade 2 and a moving blade 1, the outer surface of the moving blade 1 keeps adhering to the inner surface of the static blade 2 under the action of external force, a plurality of static blade tooth grooves 8 are arranged on the static blade 2, and the static blade teeth 6 are formed between adjacent static blade tooth grooves 8, each static blade tooth groove 8 forms a U-shaped opening shape through the front face and the two side walls of the static blade 2 from any side of the two sides of the static blade 2, and the depth of the static blade tooth groove 8 is less than the height of the two side walls of the static blade 2, a plurality of moving blade tooth grooves 13 are arranged on the moving blade 1, the moving blade teeth 15 are formed between adjacent moving blade tooth grooves 13, each moving blade tooth groove 13 forms a U-shaped opening shape through the front face and the two side walls of the moving blade 1 from any side of the two side walls of the moving blade 1, and the blocking piece 7 connecting the two sides of the moving blade tooth groove 13 is arranged at the U-shaped opening of the moving blade tooth groove 13, and the blocking pieces 7 in each moving blade tooth groove 13 are on the same and / or different axes. Specifically, in the design, the static blade tooth groove 8 is arranged as a through structure, so that the hair can enter conveniently, and the cutting efficiency is improved. Meanwhile, the U-shaped opening design of the moving blade tooth groove 13 is matched with the arrangement of the blocking piece 7, so that the hair which has not been cut completely can be blocked, the hair which has not been cut completely is prevented from being taken out, and the hair pulling phenomenon is prevented.

[0028] Further, with reference to the accompanying Figure 6As shown, the moving cutter teeth 15 include two end teeth 9 arranged at both ends of the moving cutter 1 and intermediate teeth 10 arranged at equal intervals between the end teeth 9, and the stopper 7 extends in a straight line structure from the center of one end tooth 9 to the center of the other end tooth 9, and the part of the stopper 7 between the two end teeth 9 is connected to the center of the intermediate teeth 10. Specifically, in this embodiment, the stopper 7 extends in a straight line structure from the center of one end tooth 9 to the center of the other end tooth 9, which structure enables the stopper 7 to effectively block the hair during the movement of the moving cutter 1, ensuring that the hair will not be taken out when being cut. In addition, the stopper 7 is connected to the center of the intermediate teeth 10, which makes the structure of the entire moving cutter teeth 15 more stable and improves the service life of the blade assembly.

[0029] Further, the stopper 7 separates the intermediate teeth 10 into two symmetrical side teeth 11, and the side teeth 11 are provided with side tooth grooves 12. Specifically, in this embodiment, when the stopper 7 extends in a straight line structure from the center of one end tooth 9 to the center of the other end tooth 9, the stopper 7 separates the intermediate teeth 10 to form side teeth 11, so that each side tooth 11 has an independent side tooth groove 12. Such design not only enhances the blocking effect of hair, but also guides the hair to smoothly enter the cutting area during cutting, reducing the entanglement and pulling of hair, thereby improving the comfort and efficiency of shaving. In addition, the symmetrical arrangement of the side teeth 11 ensures the balance during shaving, making the shaver more stable during work, reducing vibration, and improving the user's experience.

[0030] Referring to the drawings Figure 3 and the drawings Figure 5 As shown, the stoppers 7 in the adjacent moving cutter tooth grooves 13 are arranged in an interlaced structure. Specifically, in this embodiment, the interlaced stoppers 7 can make the hair enter at different positions, and the staggered cutting reduces the torque requirement of the machine.

[0031] The outer surface of the moving cutter teeth 15 is provided with continuous surface tooth grooves 14, which are formed by extending from the center of the moving cutter teeth 15 to both sides. Specifically, when the stoppers are arranged in an interlaced structure in the adjacent moving cutter tooth grooves 13, the outer surface of the moving cutter teeth 15 is provided with continuous surface tooth grooves 14, which can further improve the cutting efficiency of the shaver and reduce the irritation to the skin. The design of the surface tooth grooves 14 enables the hair to be more smoothly guided into the cutting area of the moving cutter teeth 15 during the work of the shaver, thereby reducing the discomfort during shaving. In addition, the continuous and through characteristics of the surface tooth grooves 14 also help to improve the durability of the blade, as it can reduce the friction between the hair and the blade, reducing wear and tear.

[0032] Further, the shape of the moving blade tooth groove 13 is non-linear. In this embodiment, the shape of the moving blade tooth groove 13 can be S, V, or partially or completely blocked, so that when the hair passes through the tooth groove, it is not smooth, slows down or hinders the hair, so that the moving blade has enough time to cut the hair.

[0033] Further, the moving blade tooth 15 has a maximum distance L1 between the two side walls, and the maximum width of the moving blade tooth groove 13 between adjacent moving blade teeth 15 is L2, and the maximum distance L1 between the two side walls of the moving blade tooth is greater than the maximum width L2*1.2 of the moving blade tooth groove between adjacent moving blade teeth. Specifically, in this embodiment, when the moving blade tooth groove 13 is a special-shaped structure, the corresponding moving blade tooth 15 is also a special-shaped structure, and the L1 of the special-shaped moving blade tooth is greater than L2*1.2, which ensures that when the hair passes through the L2 groove, it will be actively blocked by L1, and the passing time will be lengthened, so that the moving blade has enough time to cut the hair.

[0034] Further, the moving blade tooth 15 has a maximum distance L3 between the two side walls, and the L3 size is 0.25-1mm, and the width of the moving blade tooth groove 13 between adjacent moving blade teeth 15 is L4, and the size of L4 is 0.3-1mm. Specifically, in this embodiment, when the moving blade tooth 15 is a special-shaped structure, the maximum distance L3 between the two side walls is 0.25-1mm, and the width L4 of the moving blade tooth groove 13 between adjacent moving blade teeth 15 is 0.3-1mm. Such design ensures that in the special-shaped moving blade tooth 15, L3 and L4 maintain a certain proportional relationship, so that when the hair passes through the L4 groove, it can be effectively blocked by the structure of L3, thereby prolonging the residence time of the hair in the tooth groove. In this way, the moving blade tooth 15 has more time to cut the hair, improving the efficiency and comfort of shaving.

[0035] The shape of the static blade tooth groove 8 is linear, which is beneficial for hair introduction and does not slow down or hinder any hair entering the static blade groove, improving the efficiency of hair introduction, and the linear static blade tooth groove 8 can provide uniform cutting force, ensuring the stability and efficiency of the cutting process. In addition, the linear static blade tooth groove 8 is easy to process during manufacturing, reducing production costs.

[0036] Further, the moving blade 1 has a moving blade tooth portion 4, and the static blade 2 has a static blade tooth portion 4, both of which are arc surfaces or flat surfaces. Specifically, in the present embodiment, when the moving blade tooth portion 4 and the static blade tooth portion 5 are designed as arc surfaces, their surfaces can form a certain curvature, which helps to reduce friction and irritation to the skin during shaving. The arc-shaped moving blade tooth portion 4 can better fit the surface of the skin, making the contact during shaving smoother, thereby improving the comfort of shaving. At the same time, the arc-shaped static blade tooth portion 5 can guide the hair smoothly into the static blade tooth groove 8, reducing the bending and breaking of the hair, and ensuring the uniformity of the shaving effect. In addition, the moving blade tooth portion 4 and the static blade tooth portion 5 can also be designed as flat surfaces, which are simple in structure, easy to manufacture and maintain. In the flat design, the moving blade tooth portion 4 and the static blade tooth portion 5 can maintain a certain angle to ensure the cutting efficiency during shaving. The flat static blade tooth portion 5 can provide stable support to ensure the stability of the hair when being cut, thereby improving the efficiency and effect of shaving.

[0037] Reference is made to the accompanying drawings that form a part of this disclosure Figure 7 In other embodiments, the moving blade tooth groove 13 is shaped as an S-shape, which can block the hair when cutting, so that the hair cannot pass through the tooth groove smoothly when being cut, slowing down or hindering the hair, so that the moving blade has enough time to cut the hair.

[0038] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application shall not be limited to the embodiments shown herein, but shall conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blade assembly comprising a stationary blade (2) and a movable blade (1), characterized in that: The outer surface of the movable knife (1) always keeps in contact with the inner surface of the stationary knife (2) under the action of external force; a plurality of stationary knife tooth grooves (8) arranged at intervals are provided on the stationary knife (2), and stationary knife teeth (6) are formed between adjacent stationary knife tooth grooves (8); when viewed from either side of the stationary knife (2), each stationary knife tooth groove (8) passes through the front and two side walls of the stationary knife (2) to form a U-shaped opening, and the depth of the stationary knife tooth groove (8) is less than the height of the two side walls of the stationary knife (2); a plurality of stationary knife tooth grooves (8) are provided on the movable knife (1) to form a U-shaped opening; A plurality of movable blade tooth grooves (13) are arranged at intervals, and movable blade teeth (15) are formed between adjacent movable blade tooth grooves (13). When viewed from either side of the two side walls of the movable blade (1), each movable blade tooth groove (13) passes through the front face and the two side walls of the movable blade (1) to form a U-shaped opening. A stopper (7) connecting the two sides of the movable blade tooth groove (13) is provided at the U-shaped opening of the movable blade tooth groove (13). The stopper (7) in each movable blade tooth groove (13) is located on the same and / or different axes.

2. The blade assembly according to claim 1, wherein: The movable blade teeth (15) include two end teeth (9) arranged at both ends of the movable blade (1) and intermediate teeth (10) arranged between the end teeth (9) at equal intervals. The stopper (7) is in a straight line structure extending from the center position of the end teeth (9) on one side toward the center position of the end teeth (9) on the other side. The portion of the stopper (7) located between the end teeth (9) on both sides is connected to the center position of the intermediate teeth (10).

3. The blade assembly according to claim 2, wherein: The stopper (7) separates the middle tooth (10) into two symmetrically arranged side teeth (11), and the side teeth (11) are provided with side tooth grooves (12).

4. The blade assembly according to claim 1, wherein: The stoppers (7) in adjacent movable blade tooth grooves (13) are arranged in a staggered structure.

5. The blade assembly according to claim 4, wherein: The outer surface of the movable blade tooth (15) is provided with a continuous surface tooth groove (14), and the surface tooth groove (14) is formed by extending from the center of the movable blade tooth (15) toward both sides.

6. The blade assembly according to claim 1, wherein: The shape of the movable blade tooth groove (13) is non-linear.

7. The blade assembly according to claim 4, wherein: There is a maximum distance L1 between the two side walls of the movable blade teeth (15), the maximum width of the movable blade tooth groove (13) between adjacent movable blade teeth (15) is L2, and the maximum distance L1 between the two side walls of the movable blade teeth (15) is greater than the maximum width L2*1.2 of the movable blade tooth groove (13) between adjacent movable blade teeth (15).

8. The blade assembly according to claim 4, wherein: There is a maximum distance L3 between the two side walls of the movable blade teeth (15), and the size of L3 is 0.25-1 mm. The width of the movable blade tooth groove (13) between adjacent movable blade teeth (15) is L4, and the size of L4 is 0.3-1 mm.

9. The blade assembly according to claim 1, wherein: The shape of the static blade tooth groove (8) is arranged in a straight line.

10. The blade assembly according to claim 1, wherein: The movable knife (1) has a movable knife tooth portion (4), and the stationary knife (2) has a stationary knife tooth portion (5). Both the movable knife tooth portion (4) and the stationary knife tooth portion (5) are arc surfaces or plane surfaces.

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