A hair clipper head and hair clipper thereof

Abstract

The invention discloses a clipper head, comprising a fixed blade (1) having a fixed front edge, the front edge having a plurality of fixed teeth (111); a movable blade (2) comprising a movable front edge, the movable front edge having a plurality of movable teeth (211), wherein the movable teeth (211) are arranged so that the movable teeth (211) reciprocate laterally relative to the fixed teeth (111) to form a cutting edge; the invention also comprises a blade edge protection cover (3), the blade edge protection cover (3) having a plurality of smooth tooth covers (311), and body hair inlet and outlet grooves (317) are provided between adjacent smooth tooth covers (311); the blade edge protection cover (3) is sleeved on the fixed front edge of the fixed blade (1) and forms a covering non-interference restraining form for the fixed teeth (111) and the movable teeth (211), and the smooth tooth covers (311) correspond to the fixed teeth (111) and the movable teeth (211) one by one inside and outside. The hair clipper based on the hair clipper head will not scratch the skin when trimming body hair with the hair clipper head, and the hair clipper can trim body hair more cleanly.

Description

Technical Field

[0001] The invention relates to a hair clipper head and a hair clipper thereof. Background Art

[0002] A hair clipper is a tool for trimming hair or cutting hair. During operation, a moving blade (also called an inner blade) in a blade head of the hair clipper is attached to a fixed blade (also called an outer blade) of the hair clipper and moves back and forth to trim hair.

[0003] However, in the prior art, the clipping operation with the movement and coordination of the fixed blade and the movable blade has disadvantages: the heads of the fixed blade and the movable blade may scratch the human skin when the fixed blade and the movable blade come into contact with the skin to clip and trim the hair. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a clipper head. A clipper based on the clipper head can trim body hair without scratching the skin, and the clippers can trim body hair more cleanly.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a hair clipper head, comprising a fixed blade, having a fixed front edge, the front edge having a plurality of fixed teeth; a movable blade, comprising a movable front edge, the movable front edge having a plurality of movable teeth, wherein the movable teeth are arranged so that the movable teeth reciprocate laterally relative to the fixed teeth to form a cutting edge; it also comprises a blade protection cover, the blade protection cover has a plurality of smooth tooth covers, and body hair entry and exit grooves are provided between adjacent smooth tooth covers; the blade protection cover is mounted on the fixed front edge of the fixed blade and forms a covering and non-interference restraining form for the fixed teeth and the movable teeth, and its smooth tooth covers correspond one-to-one inside and outside to the fixed teeth and the movable teeth.

[0006] Furthermore, the inner width of the blade protection sleeve gradually narrows along the tip direction of the movable tooth or the fixed tooth and approaches the sum of the thicknesses of the fixed front edge of the fixed blade and the moving front edge of the movable blade, and then decreases synchronously.

[0007] Furthermore, the blade protection cover also includes a front piece and a rear piece; the front piece and the rear piece are arranged at an angle so as to restrain the fixed teeth and the movable teeth, and the lower parts of the two pieces extend to the bottom of the fixed teeth and the bottom of the movable teeth respectively, and the upper parts of the two pieces are smoothly connected into one by a flat section or an arc section, and the smooth tooth cover and the hair inlet and outlet groove are located between the front piece, the rear piece and the connecting section at the upper part of the two pieces.

[0008] Furthermore, the wall thickness of the smooth tooth sleeve is 0.1mm-0.5mm, the thickness of the front piece is 0.1mm-0.5mm, and the thickness of the rear piece is 0.1mm-0.5mm; and the lower end of the rear piece has a bending restraining portion bent toward the front piece.

[0009] Furthermore, the blade protection cover also includes a right piece and a left piece, and the left piece and the right piece are respectively located on the left and right sides of the blade protection cover, and are respectively connected to the front piece and the rear piece. The front piece, the rear piece, the left piece and the right piece form an adaptive movable cavity for the movable blade to move relative to the fixed blade for the clipper operation.

[0010] Furthermore, a moving operation margin w2 is reserved between the right piece and one end of the corresponding moving blade, and a moving operation margin w1 is reserved between the left piece and one end of the corresponding moving blade.

[0011] Furthermore, the maximum width Q1 of the adaptable active cavity is less than 5 mm, and the minimum width Q2 is greater than 1 mm.

[0012] Furthermore, the front piece, the back piece, the left piece and the right piece are an integrated structure.

[0013] Furthermore, the length h1 of the hair entrance and exit groove located on the front piece is less than the length h2 of the movable tooth and greater than half the length h2 of the movable tooth, and the length h3 of the hair entrance and exit groove located on the rear piece is less than one-third of the length h2 of the movable tooth and greater than or equal to one-fifth of the length h2 of the movable tooth; the angle a1 between the lower bottom cut surface of the hair entrance and exit groove and the skin contact surface of the fixed tooth is an obtuse angle or a right angle, and the angle a2 between the upper bottom cut surface of the hair entrance and exit groove and the outer wall inclined surface of the movable tooth is an obtuse angle or a right angle.

[0014] Compared with the prior art, the above structural design has the following advantages:

[0015] A blade protection cover is added, which leaves a hair entry and exit groove for the blade protection cover. In addition, the blade protection cover covers the fixed teeth and the movable teeth in a non-interference and restraining form, forming a new covering type of protection cover. The movable blade is combined with the fixed blade for non-interference and restraint design. When the blade head is used to trim body hair, human skin no longer directly contacts the fixed teeth or the movable teeth of the fixed blade, and the process of trimming hair by the clippers avoids scratching the skin. The blade protection cover has a restraining effect on the fixed teeth and the movable teeth, which, under the premise of meeting the mobile operation, allows the contact surfaces of the two to be infinitely close, making the clippers trim body hair more clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a plan view of the overall structure of the present invention.

[0017] Figure 2 yes Figure 1 AA view.

[0018] Figure 3 yes Figure 1 BB view.

[0019] Figure 4 yes Figure 1 CC view.

[0020] Figure 5 yes Figure 1 Magnified view of part A.

[0021] Figure 6 yes Figure 1 Magnified view of part B.

[0022] Figure 7 yes Figure 2 Magnified view of part C.

[0023] Figure 8 yes Figure 3 Magnified view of part D.

[0024] Fig. 9 yes Figure 4 Magnified view of part E.

[0025] Fig.10 It is a schematic diagram of the overall structure of the knife edge protection cover of the present invention.

[0026] Fig.11 yes Figure 1 Schematic diagram of the back structure.

[0027] Fig.12 yes Figure 1 Stereoscopic diagram.

[0028] As shown in the figure: 1. Fixed blade; 111. Fixed teeth; 2. Moving blade; 211. Moving teeth; 3. Blade protection cover; 311. Smooth tooth cover; 312. Front piece; 313. Back piece; 314. Bending restraint part; 315. Right piece; 316. Left piece; 317. Body hair entering and exiting mesh; 4. Adaptive movable cavity. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0030] Embodiment 1

[0031] This embodiment discloses a hair clipper head, the purpose of which is to use a hair clipper based on the hair clipper head without scratching the skin during the hair clipping process. A further purpose is to design the fixed blade 1 and the movable blade 2 to be infinitely close to each other on the basis of not scratching the skin during the hair clipping process, so as to improve the hair trimming effect and shave the hair more cleanly.

[0032] See Figure 1-Figure 12 As shown, the scissors head includes a fixed blade 1, a movable blade 2 and a blade protection cover 3.

[0033] The structure of the stationary blade 1 is as follows: it has a stationary front edge with a plurality of stationary teeth 111 .

[0034] The structure of the moving blade 2 is as follows: it has a moving front edge, and the moving front edge has a plurality of moving teeth 211.

[0035] During the process of both moving to cut hair, the moving teeth 211 are arranged so that the moving teeth 211 reciprocate laterally relative to the fixed teeth 111 to form a cutting edge.

[0036] The blade protection cover 3 has a plurality of smooth tooth covers 311, and a hair entry and exit groove 317 is formed between adjacent smooth tooth covers 311; the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and covers the fixed teeth 111 and the movable teeth 211 in a non-interfering and restraining manner, and its smooth tooth covers 311 correspond to the fixed teeth 111 and the movable teeth 211 one by one inside and outside.

[0037] Among them, the blade protection cover 3 is set on the fixed front edge of the fixed blade 1 and forms a covering non-interference restraint form for the fixed teeth 111 and the movable teeth 211. The covering non-interference restraint form is divided into three synchronous states in this embodiment, and they are clearly introduced.

[0038] One is: the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and covers the fixed teeth 111 and the movable teeth 211; the smooth tooth cover 311 corresponds to the fixed teeth 111 and the movable teeth 211 one by one inside and outside, and the blade protection cover 3 also includes a front piece 312 and a rear piece 313; the upper parts of the front piece 312 and the rear piece 313 are smoothly connected to each other through a flat section or an arc section, and the lower parts of the two extend to the bottom of the fixed teeth 111 and the bottom of the movable teeth 211 respectively. In the clipper based on the clipper head, the smooth tooth sleeve 311 corresponds to the fixed teeth 111 and the movable teeth 211 inside and outside one by one, and the smooth tooth sleeve 311 forms a covering state for the head tips of the fixed teeth 111 and the movable teeth 211. Therefore, the skin will not be scratched when the head tips of the fixed teeth 111 and the movable teeth 211 are used to trim body hair. That is, when the head tip of the clipper is used to trim body hair, human skin no longer directly contacts the fixed teeth or the movable teeth of the fixed blade, and the skin is avoided from being scratched when the clipper is used to trim hair.

[0039] One is: the blade protection cover 3 is set on the fixed front edge of the fixed blade 1 and forms a non-interference shape with the fixed teeth 111 and the movable teeth 211. The blade protection cover 3 includes a front piece 312, a rear piece 313, a right piece 315 and a left piece 316. The upper parts of the front piece 312 and the rear piece 313 are smoothly connected to each other through a flat section or an arc section. The smooth tooth cover 311 and the hair inlet and outlet groove 317 are located between the front piece 312, the rear piece 313 and the connecting section of the upper parts of the two. The left piece 316 and the right piece 315 are respectively located on the left and right sides of the blade protection cover 3, and are respectively connected to the front piece 312 and the rear piece 313. The front piece 312, the rear piece 313, the left piece 316 and the right piece 315 surround the adaptive activity chamber 4 for the movable blade 2 to move relative to the fixed blade 1. That is, the blade protection cover 3 is added, and the movable blade 2 moves relative to the fixed blade 1. The operation is carried out normally.

[0040] One is: the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and forms a restraining form for the fixed teeth 111 and the movable teeth 211, that is, the inner width of the blade protection cover 3 is gradually narrowed along the tip direction of the movable teeth 211 or the fixed teeth 111 and approaches the sum of the thicknesses of the fixed front edge of the fixed blade 1 and the movable front edge of the movable blade 2, and then decreases synchronously. The design concept of infinitely close proximity between the fixed blade 1 and the movable blade 2 is realized. More specifically, the blade protection cover 3 includes a front piece 312 and a rear piece 313. The front piece 312 and the rear piece 313 are arranged at an angle so as to restrain the fixed teeth 111 and the movable teeth 211, that is, to make the rear piece 313 also infinitely close to the movable blade 2. This angle setting allows the spacing between the front piece 312 and the rear piece 313 to match the thickness of the fixed front edge of the fixed blade 1 and the movable front edge of the movable blade 2, further realizing the design concept of infinitely close proximity between the fixed blade 1 and the movable blade 2. In addition, the tip of the movable tooth 211 and the tip of the fixed tooth 111 remain flush and synchronously approach the smooth tooth cover 311. Such a design can accurately trim hair. At this angle, Figure 8 A3 in the figure indicates that, overall, through the restraint and protection of the blade protection cover 3, the fixed blade 1 and the movable blade 2 are designed to be infinitely close, thereby improving the effect of the clippers in trimming body hair. At the same time, the blade protection cover 3 can block the hair trimming process without scratching the skin.

[0041] In the above three states, the smooth tooth sleeve 311 and the hair inlet and outlet groove 317 are located between the front piece 312, the back piece 313 and the upper connecting section of the two. Furthermore, the length h1 of the hair inlet and outlet groove 317 located in the front piece 312 is less than the length h2 of the moving tooth 211 and is greater than one-half of the length h2 of the moving tooth 211, and the length h3 of the hair inlet and outlet groove 317 located in the back piece 313 is less than one-third of the length h2 of the moving tooth 211 and is greater than or equal to one-fifth of the length h2 of the moving tooth 211; the amount of body hair entering the hair inlet and outlet groove 317 is ensured, and the body hair entering can be trimmed by the trimmer. The angle a1 between the lower bottom cut surface of the hair inlet and outlet groove 317 and the skin contact surface of the fixed tooth 111 is an obtuse angle or a right angle, and the angle a2 between the upper bottom cut surface of the hair inlet and outlet groove 317 and the outer wall inclined surface of the moving tooth 211 is an obtuse angle or a right angle. It is ensured that the angle at which the body hair enters is not affected by the additional blade protection cover 3, that is, the angle at which the hair enters is not interfered with.

[0042] In the above three states, the front plate 312 is welded and fixed to the outer wall of the fixed blade 1 .

[0043] In addition, the maximum width Q1 of the adapted active cavity 4 is less than 5 mm, and the minimum width Q2 is greater than 1 mm. This is a width range design that is adapted to the thickness of the fixed blade 1 and the movable blade 2. Fixed blades 1 and movable blades 2 of different thickness ranges can be selected.

[0044] In addition, the wall thickness of the smooth tooth sleeve 311 is 0.1mm-0.5mm, the thickness of the front piece 312 is 0.1mm-0.5mm; the thickness of the rear piece 313 is 0.1mm-0.5mm. This reasonable wall thickness ensures that the human skin is blocked, and the body hair entering through the hair inlet and outlet grooves 317 of the front piece 312, the hair inlet and outlet grooves 317 of the rear piece 313, and the hair inlet and outlet grooves 317 between the adjacent smooth tooth sleeves 311 are trimmed and repaired, shortening the length of the body hair remaining on the human skin. The remaining body hair is shorter, and the effect of trimming the body hair with the corresponding trimming is more thorough.

[0045] In the specific implementation, since the thickness of the front piece 312 is 0.1mm-0.5mm, the thickness of the rear piece 313 is 0.1mm-0.5mm, and the wall thickness of the smooth tooth sleeve 311 is 0.1mm-0.5mm, the blade protection sleeve 3 is thinner as a whole, and there is a possibility of improving the overall structural strength. In this regard, the lower end of the rear piece 313 is formed with a bent restraining portion 314 bent toward the front piece 312, which improves the structural strength of the front piece 312 of the blade protection sleeve 3 and achieves the purpose of restraint, so that the fixed blade 1 and the movable blade 2 are infinitely close to each other, that is, the attached Figure 3 and attached Figure 4The distance between the bending restraining portion 314 and the moving blade 2 is very small. This distance ensures that the moving operation of the moving blade 2 is not interfered with, and allows the bending restraining portion 314 to be infinitely close to the moving blade 2.

[0046] During the specific implementation, the moving operation of the moving blade 2 is ensured, and the lateral and longitudinal movements of the moving blade 2 are allowed. Even if the lateral and longitudinal movements occur, the blade protection cover 3 structure will not be collided to avoid damage. A moving operation margin w2 is left between the right piece 315 and the corresponding end of the moving blade 2, and a moving operation margin w1 is left between the left piece 316 and the corresponding end of the moving blade 2.

[0047] The structural strength of the overall blade protection cover 3 is further improved. In a specific implementation, the front piece 312, the rear piece 313, the left piece 316 and the right piece 315 are an integrated structure.

[0048] Embodiment 2

[0049] This embodiment discloses a hair clipper, the purpose of which is not to scratch the skin during the hair clipping process. A further purpose is to design the fixed blade 1 and the movable blade 2 to be infinitely close to each other on the basis of not scratching the skin during the hair clipping process, so as to improve the hair trimming effect and shave the hair more cleanly.

[0050] The hair clipper comprises a fixed blade 1, a movable blade 2, a blade protection cover 3 and a power mechanism for cooperating with the hair clipper head.

[0051] See Figure 1-Figure 12 As shown, the scissors head includes a fixed blade 1, a movable blade 2 and a blade protection cover 3.

[0052] The structure of the stationary blade 1 is as follows: it has a stationary front edge with a plurality of stationary teeth 111 .

[0053] The structure of the moving blade 2 is as follows: it has a moving front edge, and the moving front edge has a plurality of moving teeth 211.

[0054] During the process of both moving to cut hair, the moving teeth 211 are arranged so that the moving teeth 211 reciprocate laterally relative to the fixed teeth 111 to form a cutting edge.

[0055] The blade protection cover 3 has a plurality of smooth tooth covers 311, and a hair entry and exit groove 317 is formed between adjacent smooth tooth covers 311; the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and covers the fixed teeth 111 and the movable teeth 211 in a non-interfering and restraining manner, and its smooth tooth covers 311 correspond to the fixed teeth 111 and the movable teeth 211 one by one inside and outside.

[0056] Among them, the blade protection cover 3 is set on the fixed front edge of the fixed blade 1 and forms a covering non-interference restraint form for the fixed teeth 111 and the movable teeth 211. The covering non-interference restraint form is divided into three synchronous states in this embodiment, and they are clearly introduced.

[0057] One is: the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and covers the fixed teeth 111 and the movable teeth 211; the smooth tooth cover 311 corresponds to the fixed teeth 111 and the movable teeth 211 one by one inside and outside, and the blade protection cover 3 also includes a front piece 312 and a rear piece 313; the upper parts of the front piece 312 and the rear piece 313 are smoothly connected to each other through a flat section or an arc section, and the lower parts of the two extend to the bottom of the fixed teeth 111 and the bottom of the movable teeth 211 respectively. In the clipper based on the clipper head, the smooth tooth sleeve 311 corresponds to the fixed teeth 111 and the movable teeth 211 inside and outside one by one, and the smooth tooth sleeve 311 forms a covering state for the head tips of the fixed teeth 111 and the movable teeth 211. Therefore, the skin will not be scratched when the head tips of the fixed teeth 111 and the movable teeth 211 are used to trim body hair. That is, when the head tip of the clipper head is used to trim body hair, the human skin no longer directly contacts the fixed teeth or the movable teeth of the fixed blade, and the skin is avoided from being scratched when the clipper trims hair.

[0058] One is: the blade protection cover 3 is set on the fixed front edge of the fixed blade 1 and forms a non-interference shape with the fixed teeth 111 and the movable teeth 211. The blade protection cover 3 includes a front piece 312, a rear piece 313, a right piece 315 and a left piece 316. The upper parts of the front piece 312 and the rear piece 313 are smoothly connected to each other through a flat section or an arc section. The smooth tooth cover 311 and the hair inlet and outlet groove 317 are located between the front piece 312, the rear piece 313 and the connecting section of the upper parts of the two. The left piece 316 and the right piece 315 are respectively located on the left and right sides of the blade protection cover 3, and are respectively connected to the front piece 312 and the rear piece 313. The front piece 312, the rear piece 313, the left piece 316 and the right piece 315 surround the adaptive activity chamber 4 for the movable blade 2 to move relative to the fixed blade 1. That is, the blade protection cover 3 is added, and the movable blade 2 moves relative to the fixed blade 1. The operation is carried out normally.

[0059] One is: the blade protection cover 3 is mounted on the fixed front edge of the fixed blade 1 and forms a restraining form for the fixed teeth 111 and the movable teeth 211, that is, the inner width of the blade protection cover 3 is gradually narrowed along the tip direction of the movable teeth 211 or the fixed teeth 111 and approaches the sum of the thicknesses of the fixed front edge of the fixed blade 1 and the movable front edge of the movable blade 2, and then decreases synchronously. The design concept of infinitely close proximity between the fixed blade 1 and the movable blade 2 is realized. More specifically, the blade protection cover 3 includes a front piece 312 and a rear piece 313. The front piece 312 and the rear piece 313 are arranged at an angle so as to restrain the fixed teeth 111 and the movable teeth 211, that is, to make the rear piece 313 also infinitely close to the movable blade 2. This angle setting allows the spacing between the front piece 312 and the rear piece 313 to match the thickness of the fixed front edge of the fixed blade 1 and the movable front edge of the movable blade 2, further realizing the design concept of infinitely close proximity between the fixed blade 1 and the movable blade 2. In addition, the tip of the movable tooth 211 and the tip of the fixed tooth 111 remain flush and synchronously approach the smooth tooth cover 311. Such a design can accurately trim hair. At this angle, Figure 8 A3 in the figure indicates that, overall, through the restraint and protection of the blade protection cover 3, the fixed blade 1 and the movable blade 2 are designed to be infinitely close, thereby improving the effect of the clippers in trimming body hair. At the same time, the blade protection cover 3 can block the hair trimming process without scratching the skin.

[0060] In the above three states, the smooth tooth sleeve 311 and the hair inlet and outlet groove 317 are located between the front piece 312, the back piece 313 and the upper connecting section of the two. Furthermore, the length h1 of the hair inlet and outlet groove 317 located in the front piece 312 is less than the length h2 of the moving tooth 211 and is greater than one-half of the length h2 of the moving tooth 211, and the length h3 of the hair inlet and outlet groove 317 located in the back piece 313 is less than one-third of the length h2 of the moving tooth 211 and is greater than or equal to one-fifth of the length h2 of the moving tooth 211; the amount of body hair entering the hair inlet and outlet groove 317 is ensured, and the body hair entering can be trimmed by the trimmer. The angle a1 between the lower bottom cut surface of the hair inlet and outlet groove 317 and the skin contact surface of the fixed tooth 111 is an obtuse angle or a right angle, and the angle a2 between the upper bottom cut surface of the hair inlet and outlet groove 317 and the outer wall inclined surface of the moving tooth 211 is an obtuse angle or a right angle. It is ensured that the angle at which the body hair enters is not affected by the additional blade protection cover 3, that is, the angle at which the hair enters is not interfered with.

[0061] In the above three states, the front plate 312 is welded and fixed to the outer wall of the fixed blade 1 .

[0062] In addition, the maximum width Q1 of the adapted active cavity 4 is less than 5 mm, and the minimum width Q2 is greater than 1 mm. This is a width range design that is adapted to the thickness of the fixed blade 1 and the movable blade 2. Fixed blades 1 and movable blades 2 of different thickness ranges can be selected.

[0063] In addition, the wall thickness of the smooth tooth sleeve 311 is 0.1mm-0.5mm, the thickness of the front piece 312 is 0.1mm-0.5mm; the thickness of the rear piece 313 is 0.1mm-0.5mm. This reasonable wall thickness ensures that the human skin is blocked, and the body hair entering through the hair inlet and outlet grooves 317 of the front piece 312, the hair inlet and outlet grooves 317 of the rear piece 313, and the hair inlet and outlet grooves 317 between the adjacent smooth tooth sleeves 311 are trimmed and repaired, shortening the length of the body hair remaining on the human skin. The remaining body hair is shorter, and the effect of trimming the body hair with the corresponding trimming is more thorough.

[0064] In the specific implementation, since the thickness of the front piece 312 is 0.1mm-0.5mm, the thickness of the rear piece 313 is 0.1mm-0.5mm, and the wall thickness of the smooth tooth sleeve 311 is 0.1mm-0.5mm, the blade protection sleeve 3 is thinner as a whole, and the overall structural strength may be improved. To this end, the lower end of the rear piece 313 is formed with a bent restraining portion 314 bent toward the front piece 312, so as to improve the structural strength of the front piece 312 of the blade protection sleeve 3 and achieve the purpose of restraint, so that the fixed blade 1 and the movable blade 2 are infinitely close to each other. Figure 3 and attached Figure 4 The distance between the bending restraining portion 314 and the moving blade 2 shown in the figure is very small. This distance ensures that the moving operation of the moving blade 2 is not interfered with, and allows the bending restraining portion 314 to be infinitely close to the moving blade 2.

[0065] During the specific implementation, the moving operation of the moving blade 2 is ensured, and the lateral and longitudinal movements of the moving blade 2 are allowed. Even if the lateral and longitudinal movements occur, the blade protection cover 3 structure will not be collided to avoid damage. A moving operation margin w2 is left between the right piece 315 and the corresponding end of the moving blade 2, and a moving operation margin w1 is left between the left piece 316 and the corresponding end of the moving blade 2.

[0066] The structural strength of the overall blade protection cover 3 is further improved. In a specific implementation, the front piece 312, the rear piece 313, the left piece 316 and the right piece 315 are an integrated structure.

[0067] The above is only an explanation of the best embodiment of the present invention, which should not be construed as a limitation on the claims. The present invention is not limited to the above embodiments, and all changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A scissors head, comprising A fixed blade (1) having a fixed front edge with a plurality of fixed teeth (111); The movable blade (2) comprises a movable front edge, wherein the movable front edge has a plurality of movable teeth (211), wherein: The movable tooth (211) is arranged so that the movable tooth (211) reciprocates laterally relative to the fixed tooth (111) to form a cutting edge; The invention is characterized in that: it also comprises a blade protection cover (3), the blade protection cover (3) comprises a plurality of smooth tooth covers (311), and a hair inlet and outlet groove (317) is provided between adjacent smooth tooth covers (311); the blade protection cover (3) is sleeved on the fixed front edge of the fixed blade (1) and forms a covering and non-interference restraining form for the fixed teeth (111) and the movable teeth (211), and the smooth tooth covers (311) correspond to the fixed teeth (111) and the movable teeth (211) one by one inside and outside; The inner width of the blade protection sleeve (3) gradually narrows along the tip direction of the movable tooth (211) or the fixed tooth (111) and approaches the sum of the thicknesses of the fixed front edge of the fixed blade (1) and the movable front edge of the movable blade (2), and then decreases synchronously; The blade protection cover (3) further comprises a front piece (312) and a rear piece (313); the front piece (312) and the rear piece (313) are arranged at an angle so as to restrain the fixed teeth (111) and the movable teeth (211), and the lower parts of the two pieces extend respectively and correspondingly to the lower part of the fixed teeth (111) and the lower part of the movable teeth (211), and the upper parts of the two pieces are smoothly connected to form an integral whole through a flat section or an arc section, and the smooth tooth cover (311) and the hair inlet and outlet groove (317) are located between the part of the front piece (312), the part of the rear piece (313) and the connecting section of the upper parts of the two pieces; The length h1 of the hair inlet and outlet groove (317) located on the front piece (312) is less than the length h2 of the moving tooth (211) and is greater than one-half of the length h2 of the moving tooth (211); the length h3 of the hair inlet and outlet groove (317) located on the rear piece (313) is less than one-third of the length h2 of the moving tooth (211) and is greater than or equal to one-fifth of the length h2 of the moving tooth (211); the included angle a1 between the lower bottom cut surface of the hair inlet and outlet groove (317) and the skin contact surface of the fixed tooth (111) is an obtuse angle or a right angle, and the included angle a2 between the upper bottom cut surface of the hair inlet and outlet groove (317) and the outer wall inclined surface of the moving tooth (211) is an obtuse angle or a right angle; The wall thickness of the smooth tooth sleeve (311) is 0.1 mm-0.5 mm, the thickness of the front plate (312) is 0.1 mm-0.5 mm, and the thickness of the rear plate (313) is 0.1 mm-0.5 mm; and the lower end of the rear plate (313) has a bending restraining portion (314) bent toward the front plate (312).

2. A scissors head according to claim 1, characterized in that: The blade protection cover (3) further comprises a right piece (315) and a left piece (316), wherein the left piece (316) and the right piece (315) are respectively located on the left and right sides of the blade protection cover (3) and are respectively connected to the front piece (312) and the rear piece (313) to form an adaptive movable cavity (4) for the movable blade (2) to move relative to the fixed blade (1) for clipping operations.

3. The scissors head according to claim 2, characterized in that: A moving operation margin w2 is reserved between the right piece (315) and one end of the corresponding moving blade (2), and a moving operation margin w1 is reserved between the left piece (316) and one end of the corresponding moving blade (2).

4. The scissors head according to claim 2, characterized in that: The maximum width Q1 of the adaptable active cavity (4) is less than 5 mm, and the minimum width Q2 is greater than 1 mm.

5. The scissor head according to claim 2, characterized in that: The front piece (312), the back piece (313), the left piece (316) and the right piece (315) are an integrated structure.

6. A hair clipper, characterized in that: The utility model comprises the clipper head as claimed in claim 1 and a power mechanism cooperating with the clipper head.

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