High-low cutter with double-cutter-head structure

Abstract

According to the high-low cutter with the double-cutter-head structure, the blade cutter assembly and the U-shaped cutter assembly are installed on the two sides of the cutter holder respectively, and the installation height of the blade cutter assembly is lower than that of the U-shaped cutter assembly. By means of the design, in the using process of the high-low knife, according to different cutting requirements, the blade knife assembly can be selected to conduct fine cutting, or the U-shaped knife assembly can be used for conducting rapid and large-range cutting. In addition, the movable cutter is formed by combining a plurality of sheet-shaped blades, a certain gap exists between every two adjacent blades, and due to the design, the cutting resistance can be reduced, and the cutting efficiency can be improved. Due to the bent shape of the U-shaped knife, the U-shaped knife can better adapt to cutting objects in complex shapes, and cutting flexibility and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair cutting equipment technical field, concretely relates to a high and low knife with double cutter head structure. BACKGROUND

[0002] In prior art, two groups of blades on double-head shaving razor are usually in the same horizontal plane, and the structures of the two groups of blades are same, which leads to that different parts of hair cannot be adaptively trimmed according to thickness and density in the using process under different using requirements. SUMMARY

[0003] Therefore, the utility model provides a high and low knife with double cutter head structure.

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

[0005] A high and low knife with double cutter head structure, comprising a cutter seat, at least two cutter head assemblies are arranged on the cutter seat, wherein the moving cutter in one group of cutter head assemblies is combined by a plurality of sheet-shaped blade knives, the moving cutter in the other group of cutter head assemblies is a U-shaped knife which is integral and curved in U shape, the two cutter head assemblies are fixed or axially up and down displaceable mounted in the cutter seat, and the highest points of the two cutter head assemblies are in different horizontal lines in the initial state, so that a height difference is formed between the two cutter head assemblies.

[0006] Preferably, the cutter seat has a low position part and at least one high position part with a height higher than the low position part, the cutter head assembly with the moving cutter combined by a plurality of sheet-shaped blade knives is a blade knife assembly, the cutter head assembly with the moving cutter being a U-shaped knife which is integral and curved in U shape is a U-shaped knife assembly, the blade knife assembly is arranged on the high position part, and the U-shaped knife assembly is arranged on the low position part.

[0007] Preferably, the blade knife assembly comprises a blade knife and a blade knife holder, a high position mounting groove is formed in the high position part, the blade knife holder is fixed in the high position mounting groove, a plurality of blade knives are arranged on the blade knife holder at equal intervals, and the height difference between the high position part and the low position part is not greater than the radius of the blade knife.

[0008] Preferably, the thickness of the blade knife is less than or equal to 0.3mm.

[0009] Preferably, the U-shaped knife assembly comprises a U-shaped knife holder and a U-shaped blade, a low position mounting groove is formed in the low position part, the U-shaped knife holder is fixed in the low position mounting groove, and the U-shaped blade is detachably arranged on the U-shaped knife holder.

[0010] Preferably, the U-shaped blade has a blade tooth part and a tool holder connecting part on both sides of the blade tooth part, the two ends of the blade tooth part are connected with the corresponding tool holder connecting part, a plurality of equidistantly arranged long feed grooves are arranged on the blade tooth part, the adjacent long feed grooves form a moving blade tooth, arc-shaped long blades are arranged on the opposite two side walls of the long feed groove, short feed grooves are arranged at the two ends of the moving blade tooth, and arc-shaped short blades are arranged on the opposite two side walls of the short feed groove.

[0011] Preferably, arc-shaped cutting openings are further arranged between the bottom ends of the arc-shaped long blades and the arc-shaped short blades, the arc-shaped cutting openings are arranged at the bottom of the long feed groove and the short feed groove respectively, and the arc-shaped cutting opening of the long feed groove is lower than that of the short feed groove.

[0012] Preferably, a hollow groove is arranged on the short feed groove close to the tool holder connecting part, and a supporting leg is formed between the hollow groove and the adjacent long feed groove.

[0013] Preferably, the moving blade tooth has an outer surface and an inner surface, and two inclined side surfaces connecting the outer surface and the inner surface, and the included angle between the inclined side surface and the outer surface is 15-75°.

[0014] Preferably, the height difference between the two tool head assemblies is less than or equal to the diameter of the blade knife.

[0015] The beneficial effects of the utility model lie in that the blade seat is respectively provided with the blade knife assembly and the U-shaped knife assembly on both sides, and the installation height of the blade knife assembly is lower than that of the U-shaped knife assembly. Such design enables the high-low knife to select the blade knife assembly for fine cutting or the U-shaped knife assembly for rapid and large-range cutting according to different cutting requirements during use. In addition, the moving blade is composed of a plurality of blade knives in a sheet shape, and there is a certain gap between each blade knife. Such design can reduce the cutting resistance and improve the cutting efficiency. The curved shape of the U-shaped knife can better adapt to the cutting object with a complex shape, and improve the flexibility and accuracy of cutting. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] ATTACHMENT Figure 1 It is a structural schematic diagram of the utility model;

[0018] ATTACHMENT Figure 2 It is an attachment Figure 1 It is a structural exploded schematic diagram;

[0019] Appendix Figure 3 This is a schematic diagram of the U-shaped blade structure;

[0020] Appendix Figure 4 This is a schematic diagram of another embodiment of the U-shaped blade. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] This utility model provides the following technical solution:

[0024] As attached Figures 1-4 As shown, this utility model discloses a high-low blade with a dual-blade structure, including a blade holder 1. At least two blade assemblies are mounted on the blade holder 1. One set of blade assemblies has a moving blade composed of multiple blades in a sheet-like shape, while the other set has a moving blade that is a single piece bent into a U-shape. The two blade assemblies are fixedly or axially movable within the blade holder, and initially, the highest points of the two blade assemblies are on different horizontal lines, creating a height difference between them. Specifically, in this design, the blade assembly and the U-shaped blade assembly are respectively mounted on both sides of the blade holder 1, with the blade assembly installed at a lower height than the U-shaped blade assembly. This design allows the high-low blade to select either the blade assembly for fine cutting or the U-shaped blade assembly for rapid, wide-area cutting, depending on the specific cutting requirements. Furthermore, the moving blade, composed of multiple blades in a sheet-like shape, has a certain gap between each blade, which reduces cutting resistance and improves cutting efficiency. The U-shaped blade, due to its curved shape, is better able to adapt to cutting objects with complex shapes, improving cutting flexibility and accuracy.

[0025] Two said cutter head assemblies are fixed or axially displaced in the cutter seat, and in the initial state, the highest points of the two cutter head assemblies are at different levels, so that a height difference is formed between the two cutter head assemblies. Such a structural design not only meets the diversified cutting needs, but also improves the convenience and practicality of operation. In actual operation, the user can flexibly select to use the blade cutter assembly or the U-shaped cutter assembly according to the size, shape and required cutting accuracy of the cutting object. When fine cutting is required, the blade cutter assembly with a lower installation height can be selected. The multi-blade combination design of the blade cutter assembly makes the cutting surface more flat and the cutting accuracy higher. When rapid and large-scale cutting is required, the U-shaped cutter assembly with a higher installation height can be selected. The curved shape of the U-shaped cutter assembly can better adapt to cutting objects of complex shapes, improving cutting efficiency. In addition, the height difference between the two cutter head assemblies also makes the high-low cutter more stable during use, avoiding the problem of unstable cutting caused by irregular shapes of the cutting object.

[0026] Further, the cutter seat 1 has a low part 2 and at least one high part 3 with a height higher than the low part 2. The cutter head assembly with the moving cutter formed by a plurality of blade-shaped blade cutters is a blade cutter assembly 4, and the cutter head assembly with the moving cutter being an integral and curved U-shaped U-shaped cutter is a U-shaped cutter assembly 5. The blade cutter assembly 4 is arranged on the high part 3, and the U-shaped cutter assembly 5 is arranged on the low part 2. Specifically, in this embodiment, the U-shaped cutter assembly 5 on the low part 2 and the blade cutter assembly 4 on the high part 3 are combined, which can not only solve the problem of higher efficiency when there are more hairs, but also ensure that when there are fewer hairs or fine shaving is required, the blade cutter assembly 4 can be used for detailed processing. The design of the low part 2 makes the U-shaped cutter assembly 5 closer to the skin, especially when dealing with hard-to-reach areas such as underarms and groin, it can provide better fit and shaving effect. The blade cutter assembly 4 on the high part 3 can be more flexibly adjusted in angle during use, which is convenient for processing hair on flat areas such as face and arms. At the same time, the design of multiple blade cutters can also reduce skin irritation and improve comfort. Such high-low design not only improves the efficiency of shaving, but also meets the shaving needs of different groups of people and different parts.

[0027] Further, the blade cutter assembly 4 includes a blade cutter 41 and a blade cutter holder 42. The high part 3 is provided with a high installation slot 6, and the blade cutter holder is fixed in the high installation slot 6. A plurality of blade cutters are arranged at equal intervals on the blade cutter holder. Specifically, in this embodiment, the design of the high installation slot 6 makes the blade cutter assembly 4 firmly installed on the high part 3, which is not easy to loosen or fall off, ensuring the safety and stability of use. At the same time, the equally spaced blade cutters can ensure the uniformity of the shaving effect, avoiding the problems of missed shaving or repeated shaving, and improving the efficiency and comfort of shaving.

[0028] The height difference between the high part 3 and the low part 2 is not greater than the radius of the blade 41. In this embodiment, such a design can ensure that in use, whether the high part or the low part of the blade assembly can effectively contact the skin, achieving a comprehensive shaving effect. At the same time, the limitation that the height difference is not greater than the radius of the blade also avoids the problem of uneven shaving or skin scratching caused by too large height difference during use, further improving the safety and comfort of use.

[0029] Further, the thickness of the blade 41 is less than or equal to 0.3mm. Specifically, in this embodiment, the thickness of the blade 41 can be controlled within 0.3mm, preferably 0.1-0.15mm, within the same length range, the blade can realize more blade quantity, and then the blade itself is thin, which greatly reduces the invalid cutting occupied area.

[0030] Further, the U-shaped knife assembly 5 includes a U-shaped knife holder 51 and a U-shaped knife blade 52, a low installation slot 7 is provided on the low part 2, the U-shaped knife holder 51 is fixed in the low installation slot 7, and the U-shaped knife blade 52 is detachably arranged on the U-shaped knife holder 51. Specifically, in this embodiment, the design of the low installation slot 7 enables the U-shaped knife assembly 5 to be stably installed on the low part 2, ensuring that it will not shake or deviate during use, further improving the safety and stability of use. At the same time, the detachable arrangement of the U-shaped knife blade 52 not only facilitates the user's cleaning and maintenance, but also allows the user to replace different specifications or wear degrees of the blade according to actual needs, thereby prolonging the service life of the entire device and maintaining the best shaving effect.

[0031] Further, the U-shaped blade 52 has a blade tooth part 521 and a tool holder connecting part 8 on both sides of the blade tooth part 521, the two ends of the blade tooth part 521 are connected with the corresponding tool holder connecting part 8, a plurality of equally spaced long hair grooves 9 are arranged on the blade tooth part 521, the adjacent long hair grooves 9 form a moving blade tooth 10, arc-shaped long blades 11 are arranged on the opposite side walls of the long hair grooves 9, short hair grooves 12 are arranged at both ends of the moving blade tooth 10, and arc-shaped short blades 13 are arranged on the opposite side walls of the short hair grooves 12. Specifically, in this example, the design of the long hair grooves 9 helps the hair to smoothly enter the inside of the blade, and the arc-shaped long blades 11 can more efficiently cut the hair, reducing the resistance and energy consumption during cutting. The adjacent moving blade tooth 10 further improves the cutting accuracy and efficiency through the cooperation of the short hair grooves 12 and the arc-shaped short blades 13. This design not only makes the U-shaped blade 52 more smooth during shaving, reduces the pulling sensation of the hair, but also significantly improves the shaving effect and the comfort of the user. At the same time, the stable connection of the blade tooth part 521 and the tool holder connecting part 8 ensures that the blade will not deform or loosen during use, further improving the overall performance and stability of the device.

[0032] Further, the arc-shaped long blades 11 and the arc-shaped short blades 13 are further provided with arc-shaped cutting ports 14 between the bottom ends, the arc-shaped cutting ports 14 are respectively arranged at the bottom of the long hair grooves 9 and the short hair grooves 12, and the arc-shaped cutting port 14 of the long hair groove 9 is lower than that of the short hair groove 12. Specifically, in this embodiment, the design of the arc-shaped cutting port 14 further enhances the cutting ability of the blade. The arc-shaped cutting port 14 at the bottom of the long hair groove 9 is relatively low in position, which helps to preliminarily cut the hair through the arc-shaped long blades 11 when the hair enters the long hair groove 9, and then the hair slides down to the arc-shaped cutting port 14 for more detailed cutting. The arc-shaped cutting port 14 at the bottom of the short hair groove 12 is relatively high in position, which mainly further trims the hair after the hair is cut between the moving blade teeth 10, ensuring that the cut hair is smoother. The design of the double arc-shaped cutting ports 14 not only improves the cutting efficiency, but also makes the shaving effect more uniform and delicate.

[0033] Further, the short hair groove 12 is provided with a hollow groove 15 near the tool holder connecting part 8, and the hollow groove 15 forms a supporting leg between the adjacent long hair groove 9. Specifically, in this embodiment, through the supporting leg formed between the hollow groove 15 and the adjacent long hair groove 9, the blade can better fit the skin contour during shaving, especially when dealing with complex facial curves, such as under the chin and neck area. This design not only enhances the stability of the blade, reduces the sliding during shaving, but also improves the shaving experience of the user, making the shaving process more comfortable and smooth. At the same time, the hollow groove 15 also helps to reduce the overall weight of the blade, making the shaver more lightweight and easy to operate during use.

[0034] Further, the moving cutter tooth 10 has an outer surface and an inner surface, and two inclined side surfaces connecting the outer surface and the inner surface, and the angle between the inclined side surface and the outer surface is 15-75°. Specifically, in the embodiment, the angle of the inclined side surface of the moving cutter tooth 10 ranges between 15-75°, which makes the inclined side surface more sharp, and can cut the hair more effectively, and improve the cutting efficiency; the design of the inclined side surface also helps to reduce the friction resistance during shaving, so that the shaving process is more smooth, and the irritation and discomfort of the skin is reduced.

[0035] Further, the height difference between the two cutter head assemblies is less than or equal to the diameter of the blade. Specifically, in the embodiment, the height difference between the two cutter head assemblies is controlled within the diameter of the blade. When using the shaver, the two cutter head assemblies can work cooperatively, seamlessly connect, cover each corner of the face, and even the difficult-to-reach areas can be finely processed. The strict control of the height difference not only improves the comprehensiveness and efficiency of shaving, but also further enhances the comfort of shaving, and avoids the skin compression caused by the imbalance between the cutter head assemblies.

[0036] The above description of the 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 will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-low knife with double blade head structure, comprising a knife holder (1), characterized in that: The knife seat (1) is provided with at least two knife head assemblies, wherein the moving knife in one of the knife head assemblies is combined by a plurality of sheet-shaped sheet knives, the moving knife in the other knife head assembly is an integral U-shaped knife which is bent into a U shape, the two knife head assemblies are fixed or axially upwardly and downwardly displaceable mounted in the knife seat, and the highest points of the two knife head assemblies are at different levels in the initial state, so that a height difference is formed between the two knife head assemblies.

2. The high-low knife with a double blade head structure according to claim 1, characterized in that: The knife seat (1) has a low part (2) and at least one high part (3) which is higher than the low part (2), the knife head assembly with the moving knife combined by a plurality of sheet-shaped sheet knives is a sheet knife assembly (4), the knife head assembly with the moving knife being an integral U-shaped knife is a U-shaped knife assembly (5), the sheet knife assembly (4) is arranged on the high part (3), and the U-shaped knife assembly (5) is arranged on the low part (2).

3. The high-low knife with a dual blade head structure according to claim 2, wherein: The sheet knife assembly (4) comprises a sheet knife (41) and a sheet knife holder (42), a high installation groove (6) is formed in the high part (3), the sheet knife holder is fixed in the high installation groove (6), a plurality of knife blades are arranged on the sheet knife holder at equal intervals, and the height difference between the high part (3) and the low part (2) is not greater than the radius of the sheet knife (41).

4. The high-low knife with a double blade head structure according to claim 3, characterized in that: The thickness of the sheet knife is less than or equal to 0.3 mm.

5. The high-low knife with dual blade heads of claim 2, wherein: The U-shaped knife assembly (5) comprises a U-shaped knife holder (51) and a U-shaped knife blade (52), a low installation groove (7) is formed in the low part (2), the U-shaped knife holder (51) is fixed in the low installation groove (7), and the U-shaped knife blade (52) is detachably arranged on the U-shaped knife holder (51).

6. The high-low knife with dual blade heads of claim 5, wherein: The U-shaped knife blade (52) has a knife tooth part (521) and a holder connecting part (8) located on both sides of the knife tooth part (521), both ends of the knife tooth part (521) are connected with the corresponding holder connecting part (8), a plurality of long feed grooves (9) are formed in the knife tooth part (521) at equal intervals, the moving knife teeth (10) are formed between adjacent long feed grooves (9), arc-shaped long blades (11) are arranged on the opposite side walls of the long feed grooves (9), short feed grooves (12) are arranged at both ends of the moving knife teeth (10), and arc-shaped short blades (13) are arranged on the opposite side walls of the short feed grooves (12).

7. The high-low knife with dual blade heads of claim 6, wherein: Arc-shaped cutting openings (14) are further arranged between the bottom ends of the arc-shaped long blades (11) and the arc-shaped short blades (13), the arc-shaped cutting openings (14) are respectively arranged at the bottom of the long feed grooves (9) and the short feed grooves (12), and the arc-shaped cutting opening (14) of the long feed groove (9) is lower than the arc-shaped cutting opening (14) of the short feed groove (12).

8. The high-low knife with dual blade heads of claim 6, wherein: The short feed groove (12) is provided with a hollow groove (15) in the direction close to the holder connecting part (8), and the hollow groove (15) and the adjacent long feed groove (9) form a supporting leg.

9. The high-low knife with dual blade heads of claim 6, wherein: The moving knife tooth (10) has an outer surface, an inner surface and two inclined side surfaces connecting the outer surface and the inner surface, and the included angle between the inclined side surface and the outer surface is 15-75°.

10. The high-low knife with dual blade heads of claim 1, wherein: The height difference between the two knife head assemblies is less than or equal to the diameter of the sheet knife.

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