A razor blade
By adopting a cylindrical structure of fixed knife and movable knife, cross or overlapping beard introduction groove design, the problem of insufficient fit between the razor and the skin is solved, and effective removal of longer beards and shaving effect is achieved.
Patent Information
- Application Number
- CN201811342148.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-11-13
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2038-11-13
AI Technical Summary
The existing razor heads do not fit enough when they come into contact with human skin, making it difficult to effectively remove longer beards.
The fixed knife and the movable knife are adopted with a cylindrical structure. The fixed knife is equipped with a first beard introduction groove and the second beard introduction groove is installed on the movable knife. The two cross or overlap, and the movable knife moves back and forth under the drive to remove the beard.
It improves the fit with human skin, can directly remove longer beards, increase the shaving area, and improves the shaving effect.
Smart Images
Figure CN109940667B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a razor blade head. Background Art
[0002] For the existing outer cutter (stationary cutter) and inner cutter (moving cutter) of a razor, both are mostly planar structures. For a razor with planar outer and inner cutters, when shaving, on the one hand, there is room for improvement in the degree of fit when the outer cutter contacts the human facial skin; on the other hand, for longer beards, they need to be cut short with scissors first before they can be cleanly removed by the razor. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a razor blade head that improves the degree of fit when contacting the human skin and can directly remove longer beards.
[0004] To solve the above technical problem, the technical solution provided by the present invention is as follows:
[0005] A razor blade head, which includes a stationary cutter. Its structure includes a stationary cutter body, and the stationary cutter body is composed of at least one cylindrical structure body. On the upper part of the cylindrical structure body that constitutes the stationary cutter body, there are provided a plurality of first beard guiding grooves. The plurality of first beard guiding grooves are spaced along the length direction of the cylindrical structure body, and the trajectory of a single first beard guiding groove extends along the arc section trajectory of the outer wall of the cylindrical structure body; and a moving cutter, its structure includes a moving cutter body, and the moving cutter body is composed of at least one cylindrical structure body. On the upper part of the cylindrical structure body that constitutes the moving cutter body, there are provided a plurality of second beard guiding grooves. The plurality of second beard guiding grooves are spaced along the length direction of the cylindrical structure body, and the trajectory of a single second beard guiding groove extends along the arc section trajectory of the outer wall of the cylindrical structure body; and, the moving cutter composed of the cylindrical structure body is inserted into one end of the cylindrical structure body of the stationary cutter, the first beard guiding grooves and the second beard guiding grooves cross each other. During use, the stationary cutter is fixed, and the moving cutter can reciprocate along its length direction under the drive of the driving member of the razor blade head to remove the beards that enter through the first beard guiding grooves and the second beard guiding grooves.
[0006] To solve the above technical problem, another technical solution provided by the present invention is as follows:
[0007] A razor blade head, which includes a stationary blade. The structure of the stationary blade includes a stationary blade body, and the stationary blade body is composed of at least one cylindrical structure. A plurality of first beard guiding grooves are provided on the cylindrical structure that constitutes the stationary blade body. The plurality of first beard guiding grooves are spaced along the length direction of the cylindrical structure, and the trajectory of a single first beard guiding groove extends along the arc section trajectory of the outer wall of the cylindrical structure; and a moving blade, the structure of which includes a moving blade body. The moving blade body is composed of at least one cylindrical structure. A plurality of second beard guiding grooves are provided on the cylindrical structure that constitutes the moving blade body. The plurality of second beard guiding grooves are spaced along the length direction of the cylindrical structure, and the trajectory of a single second beard guiding groove extends along the arc section trajectory of the outer wall of the cylindrical structure;
[0008] Moreover, the moving blade composed of a cylindrical structure is inserted into one end of the cylindrical structure of the stationary blade, and the first beard guiding groove coincides with the second beard guiding groove. During use, the stationary blade is fixed, and the moving blade can reciprocate along its length direction under the drive of the driving member of the razor blade head to shave off the beards that enter through the first beard guiding groove and the second beard guiding groove.
[0009] With the above structural design, compared with the prior art, it has the following advantages:
[0010] Making the stationary blade body into a cylindrical structure, that is, the outer blade body is a cylindrical structure, is more conducive to contacting with the human skin and improves the fitting degree when contacting with the human skin.
[0011] At the same time, the blade body of the moving blade is also a cylindrical structure, and it is inserted into one end of the cylindrical structure of the stationary blade. After the stationary blade and the moving blade are assembled, the first beard guiding groove of the stationary blade intersects with the second beard guiding groove of the moving blade or the first beard guiding groove coincides with the second beard guiding groove. With the aid of the two cooperating cylindrical structures, the smooth entry of longer beards is realized. During use, the stationary blade is fixed, and the moving blade can reciprocate along its length direction under the drive of the driving member of the razor blade head to shave off the beards that enter through the first beard guiding groove and the second beard guiding groove, achieving a better purification effect on the skin. Brief Description of the Drawings
[0012] Figure 1 It is the overall structural schematic diagram when the present invention adopts a single cylindrical structure.
[0013] Figure 2 is Figure 1 the exploded view of
[0014] Figure 3 is Figure 1 the top view of
[0015] Figure 4 is Figure 3End view of A-A.
[0016] Figure 5 is Figure 4 An enlarged view of part A.
[0017] Figure 6 is Figure 3 End view of B-B.
[0018] Figure 7 It is a schematic structural view of a fixed knife of the present invention.
[0019] Figure 8 is Figure 7 End view of A-A.
[0020] Figure 9 is Figure 8 An enlarged view of part A.
[0021] Figure 10 is Figure 7 End view of B-B.
[0022] Figure 11 is Figure 10 An enlarged view of part B.
[0023] Figure 12 is Figure 7 Stereogram.
[0024] Figure 13 is Figure 7 Schematic bottom view.
[0025] Figure 14 It is a schematic structural view of a moving knife of the present invention.
[0026] Figure 15 is Figure 14 End view of A-A.
[0027] Figure 16 is Figure 14 End view of C-C.
[0028] Figure 17 is Figure 16 An enlarged view of part C.
[0029] Figure 18 is Figure 14 Stereogram.
[0030] Figure 19 is Figure 14 End view of B-B.
[0031] Figure 20 It is a schematic overall structure view when the present invention adopts two cylindrical structures.
[0032] Figure 21 is Figure 20 the exploded view of
[0033] Figure 22 is Figure 20 the top view of
[0034] Figure 23 is Figure 22 the end view of A - A
[0035] Figure 24 is Figure 22 the end view of B - B
[0036] Figure 25 It is the structural schematic diagram of another fixed knife of the present invention.
[0037] Figure 26 is Figure 25 the end view of A - A
[0038] Figure 27 is Figure 26 the enlarged view of part B of
[0039] Figure 28 is Figure 25 the structural schematic diagram of another perspective of the fixed knife shown in
[0040] Figure 29 is Figure 28 the enlarged view of part A of
[0041] Figure 30 is Figure 25 the stereogram of
[0042] Figure 31 It is the structural schematic diagram of another moving knife of the present invention.
[0043] Figure 32 is Figure 31 the end view of A - A
[0044] Figure 33 is Figure 31 the end view of C - C
[0045] Figure 34 is Figure 33 the enlarged view of part C of
[0046] Figure 35 is Figure 31 the stereogram of
[0047] Figure 36 is Figure 31 the end view of B - B
[0048] Figure 37It is a schematic diagram of the overall structure when the present invention adopts three cylindrical structures.
[0049] Figure 38 It is Figure 37 the explosion diagram of.
[0050] Figure 39 It is Figure 37 the top view of.
[0051] Figure 40 It is Figure 39 the A-A view of.
[0052] Figure 41 It is Figure 39 the B-B view of.
[0053] As shown in the figure: 1. Fixed knife; 2. Moving knife; 211. First beard inlet groove; 212. Second beard inlet groove; 311. First left tool rest; 411. First right tool rest; 511. First tool seat; 611. First transmission member; 612. Second transmission member; 613. Third transmission member; 711. First connecting ear; 712. Second connecting ear; 713. Third connecting ear; 714. Fourth connecting ear; 715. Fifth connecting ear; 716. Sixth connecting ear; 811. First connecting pin; 812. Second connecting pin; 813. Third connecting pin; 911. Fixed knife insertion piece; 912. Insertion foot; 913. Moving knife insertion piece; 1011. First fixed knife fixing piece; 1012. Second fixed knife fixing piece. Specific embodiments
[0054] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Embodiment
[0055] This embodiment discloses a razor blade head, as shown in Figures 1 - 19 shown, which includes a fixed knife 1, a moving knife 2, a first left tool rest 311, a first right tool rest 411, a first tool seat 511, a first transmission member 611 and a driving member.
[0056] The fixed knife 1 has a structure including a fixed knife blade body, the fixed knife blade body is composed of a cylindrical structure, the wall thickness of the cylindrical structure constituting the fixed knife 1 is 0.05 - 5 mm, the wall thickness of the cylindrical structure constituting the fixed knife 1 is marked as d1 in Figure 9 , and a plurality of first beard inlet grooves 211 are provided on the upper part of the cylindrical structure constituting the fixed knife blade body, the groove width of the first beard inlet groove 211 is 0.2 - 2 mm, and the groove width of the first beard inlet groove 211 is in Figure 11It is marked by d2 that a plurality of the first whisker introduction grooves 211 are distributed at intervals along the length direction of the cylindrical structure, and the trajectory of a single first whisker introduction groove 211 extends along the arc segment trajectory of the outer wall of the cylindrical structure. The first whisker introduction groove 211 on the side surface of the cylindrical structure provided with the first whisker introduction groove 211 forms an angle a1 with the length direction of the cylindrical structure, and the angle of the angle a1 is 30 - 150 degrees. The angle a1 is marked in Figure 11 and marked out.
[0057] The moving blade 2 has a structure including a moving blade body, and the moving blade body is composed of a cylindrical structure. A plurality of second whisker introduction grooves 212 are provided on the upper part of the cylindrical structure constituting the moving blade body. The groove width of the second whisker introduction groove 212 matches the groove width of the first whisker introduction groove 211, that is, the groove width of the second whisker introduction groove 212 is 0.2 - 2 mm. The groove width of the second whisker introduction groove 212 is marked by d3 in Figure 12 and Figure 19 It is marked by d3 that a plurality of the second whisker introduction grooves 212 are distributed at intervals along the length direction of the cylindrical structure, and the trajectory of a single second whisker introduction groove 212 extends along the arc segment trajectory of the outer wall of the cylindrical structure. The second whisker introduction groove 212 on the side surface of the cylindrical structure provided with the second whisker introduction groove 212 forms an angle a2 with the length direction of the cylindrical structure, and the angle a2 is marked in Figure 19 and marked out.
[0058] Moreover, the bottom of the cylindrical structure of the moving blade 2 has a connecting piece extending along its length direction. A gap for the connecting piece of the moving blade 2 to pass through is provided at the bottom of the cylindrical structure of the fixed blade 1. The gap is marked by B in Figure 7 and Figure 13 The gap of the fixed blade 1 extends along its length direction. The moving blade 2 composed of a cylindrical structure is inserted from one end of the cylindrical structure of the fixed blade 1, and the connecting piece at the bottom of the cylindrical structure of the moving blade 2 passes through the gap at the bottom of the cylindrical structure of the fixed blade 1. The connecting piece at the bottom of the cylindrical structure of the moving blade 2 is marked by A in Figure 2 , Figure 6 , Figure 15 , Figure 17 , Figure 18 and Figure 19 There is a margin for the reciprocating movement of the moving blade 2 between the two ends of the connecting piece of the moving blade 2 and the gap of the fixed blade 1. See Figure 16As shown, the gap between the cylindrical structure forming the fixed blade 1 and the cylindrical structure forming the moving blade 2 installed inside it is 0.02 - 0.2 mm, which is used to ensure that the movement of the moving blade 2 is smoother, and at the same time, the remaining beard will not be too long. After the fixed blade 1 and the moving blade 2 are assembled, the included angle a1 and the included angle a2 match, so that the first beard inlet groove 211 intersects with the second beard inlet groove 212, or the first beard inlet groove 211 coincides with the second beard inlet groove 212 (not shown in the attached drawings).
[0059] During use, the fixed blade 1 is fixed, and the moving blade 2 can reciprocate along its length direction under the drive of the driving member of the razor head to shave off the beards entering through the first beard inlet groove 211 and the second beard inlet groove 212.
[0060] The first left knife rest 311 includes a vertical part and a horizontal part, and the first right knife rest 411 includes a vertical part and a horizontal part; the vertical part of the first left knife rest 311 and the vertical part of the first right knife rest 411 are abutted between the two ends of the cylindrical structure of the fixed blade 1, and the horizontal part of the first left knife rest 311 and the horizontal part of the first right knife rest 411 are plugged and fixed; the bottom of the horizontal part of the first left knife rest 311 has a first connecting ear 711 with a connecting hole, and the bottom of the horizontal part of the first right knife rest 411 has a second connecting ear 712 with a connecting hole; a pair of coaxially arranged and oppositely arranged first connecting pins 811 are provided on the first knife seat 511, one first connecting pin 811 is rotatably connected to the connecting hole of the first connecting ear 711, and the other first connecting pin 811 is rotatably connected to the connecting hole of the second connecting ear 712; after the connecting piece of the moving blade 2 passes through the gap of the cylindrical structure of the fixed blade 1, it is plugged and matched with the part of the upper end of the first transmission member 611 passing through the first knife seat 511 from bottom to top; the driving end of the driving member is connected to the lower end of the first transmission member 611, and the cylindrical structure of the knife 2 is driven to reciprocate along its length direction through the first transmission member 611 for shaving. Embodiment
[0061] This embodiment discloses a razor head, which increases the shaving area at the same time and improves the shaving effect. See Figures 20 - 36 As shown, it includes a fixed blade 1, a moving blade 2, a second left knife rest 312, a second right knife rest 412, a second knife seat 512, a second transmission member 612, a driving member, and a first fixed blade fixing piece 1011.
[0062] The fixed blade 1 has a structure including a fixed blade body, and the fixed blade body is composed of two cylindrical structures. The wall thickness of the cylindrical structure forming the fixed blade 1 is 0.05 - 5 mm, and the wall thickness of the cylindrical structure forming the fixed blade 1 is Figure 27In the figure, it is marked by d1 that several first whisker introduction grooves 211 are provided on the upper part of the cylindrical structure body forming the fixed knife blade body. The groove width of the first whisker introduction groove 211 is 0.2 - 2 mm. The groove width of the first whisker introduction groove 211 is within Figure 29 In the figure, it is marked by d2 that several of the first whisker introduction grooves 211 are distributed at intervals along the length direction of the cylindrical structure body. The track of a single first whisker introduction groove 211 extends along the outer wall arc segment track of the cylindrical structure body. The first whisker introduction groove 211 on the side surface of the cylindrical structure body provided with the first whisker introduction groove 211 forms an angle a1 with the length direction of the cylindrical structure body. The angle of the angle a1 is 30 - 150 degrees. The angle a1 is within Figure 29 is marked in the figure.
[0063] The moving knife 2 has a structure including a moving knife blade body. The moving knife blade body is composed of two cylindrical structure bodies. Several second whisker introduction grooves 212 are provided on the upper part of the cylindrical structure body forming the moving knife blade body. The groove width of the second whisker introduction groove 212 matches the groove width of the first whisker introduction groove 211, that is, the groove width of the second whisker introduction groove 212 is 0.2 - 2 mm. The groove width of the second whisker introduction groove 212 is within Figure 36 In the figure, it is marked by d3 that several of the second whisker introduction grooves 212 are distributed at intervals along the length direction of the cylindrical structure body. The track of a single second whisker introduction groove 212 extends along the outer wall arc segment track of the cylindrical structure body. The second whisker introduction groove 212 on the side surface of the cylindrical structure body provided with the second whisker introduction groove 212 forms an angle a2 with the length direction of the cylindrical structure body. The angle a2 is within Figure 36 is marked in the figure.
[0064] Moreover, the two cylindrical structure bodies of the fixed knife 1 are fixedly connected by a fixed knife insertion piece 911 located between them. The fixed knife insertion piece 911 of the fixed knife 1 has two pairs of the insertion feet 912 extending along its length direction. The two cylindrical structure bodies of the moving knife 2 are fixedly connected by a moving knife insertion piece 913 located between them. The moving knife 2 is inserted into one end of the fixed knife 1 so that the two pairs of the insertion feet 912 are respectively located on the opposite sides of the moving knife insertion piece 913. The moving knife 2 composed of the cylindrical structure body is inserted into one end of the cylindrical structure body of the fixed knife 1. There is a margin for the reciprocating movement of the moving knife 2 between the two pairs of the insertion feet 912 and the moving knife insertion piece 913. After the fixed knife 1 and the moving knife 2 are assembled, the gap between the cylindrical structure body forming the fixed knife 1 and the cylindrical structure body forming the moving knife 2 inserted into its interior is 0.02 - 0.2 mm, so as to ensure that the movement of the moving knife 2 is smoother and at the same time ensure that the remaining whiskers are not too long. This gap is within Figure 24As shown by d4, the first whisker guiding groove 211 intersects with the second whisker guiding groove 212. After the stationary cutter 1 and the movable cutter 2 are assembled, the included angle a1 and the included angle a2 match. After the stationary cutter 1 and the movable cutter 2 are assembled, due to the matching of the included angle a1 and the included angle a2 after the assembly of the stationary cutter 1 and the movable cutter 2, the first whisker guiding groove 211 intersects with its corresponding second whisker guiding groove 212, or the first whisker guiding groove 211 coincides with the second whisker guiding groove 212 (not shown in the attached drawings).
[0065] During use, the stationary cutter 1 is fixed, and the movable cutter 2 can reciprocate along its length direction under the drive of the driving member of the razor blade head to shave off the beards that enter through the first whisker guiding groove 211 and the second whisker guiding groove 212.
[0066] The second left knife holder 312 includes a vertical portion and a horizontal portion, and the second right knife holder 412 includes a vertical portion and a horizontal portion; the vertical portion of the second left knife holder 312 and the vertical portion of the second right knife holder 412 are abutted between the two ends of the cylindrical structure of the stationary cutter 1, and the horizontal portion of the second left knife holder 312 and the horizontal portion of the second right knife holder 412 are inserted and fixed; the bottom of the first stationary cutter fixing piece 1011 is abutted between the horizontal portion of the second left knife holder 312 and the horizontal portion of the second right knife holder 412 and fixed by screws, and the two ends of the first stationary cutter fixing piece 1011 are abutted between the vertical portion of the second left knife holder 312 and the vertical portion of the second right knife holder 412; the bottom of the horizontal portion of the second left knife holder 312 has a third connecting ear 713 with a connecting hole, and the bottom of the horizontal portion of the second right knife holder 412 has a fourth connecting ear 714 with a connecting hole; a pair of second connecting pins 812 that are coaxial and oppositely arranged are provided on the second knife seat 512, one second connecting pin 812 is rotatably connected to the connecting hole of the third connecting ear 713, and the other second connecting pin 812 is rotatably connected to the connecting hole of the fourth connecting ear 714; the lower end of the movable cutter inserting piece 913 of the movable cutter 2 is inserted and matched with the part that penetrates through the second knife seat 512 and the first stationary cutter fixing piece 1011 from the upper end to the lower end of the second transmission member 612; the driving end of the driving member is connected to the lower end of the second transmission member 612, and the two cylindrical structures of the cutter 2 are driven to reciprocate along their length directions by the second transmission member 612 for shaving. Embodiment
[0067] This embodiment discloses a razor blade head, which increases the shaving area at the same time, improves the shaving effect, and improves the effect of the razor blade head fitting the skin through the reasonable arrangement of the stationary cutter, further strengthening the evolution effect of shaving, as shown in Figures 37 - 41 shown. It includes a stationary cutter 1, a movable cutter 2, a third left knife holder 313, a third right knife holder 413, a third knife seat 513, a third transmission member 613, a driving member, and a second stationary cutter fixing piece 1012.
[0068] The fixed blade 1 has a structure including a fixed blade body, and the fixed blade body is composed of three cylindrical structures. The cylindrical structures of the fixed blade are marked with B in Figure 38 The moving blade 2 has a structure including a moving blade body, and the moving blade body is composed of three cylindrical structures. The cylindrical structures of the moving blade are marked with C in Figure 38 and Figure 40 Moreover, each cylindrical structure of the fixed blade is specifically visible in Figures 7 - 13 shown, and each cylindrical structure of the fixed blade is specifically visible in Figures 14 - 19 shown.
[0069] The wall thickness of the cylindrical structure forming the fixed blade 1 is 0.05 - 5 mm, and the wall thickness of the cylindrical structure forming the fixed blade 1 is marked with d1 in Figure 9 On the upper part of the cylindrical structure forming the fixed blade body, a number of first whisker introduction grooves 211 are provided. The groove width of the first whisker introduction grooves 211 is 0.2 - 2 mm, and the groove width of the first whisker introduction grooves 211 is marked with d2 in Figure 11 A number of the first whisker introduction grooves 211 are spaced along the length direction of the cylindrical structure. The trajectory of a single first whisker introduction groove 211 extends along the outer wall arc section trajectory of the cylindrical structure. The first whisker introduction grooves 211 on the side of the cylindrical structure provided with the first whisker introduction grooves 211 form an angle a1 with respect to the length direction of the cylindrical structure, and the angle of this angle a1 is 30 - 150 degrees, and this angle a1 is marked in Figure 11 indicated.
[0070] On the upper part of the cylindrical structure forming the moving blade body, a number of second whisker introduction grooves 212 are provided. The groove width of the second whisker introduction grooves 212 matches the groove width of the first whisker introduction grooves 211, that is, the groove width of the second whisker introduction grooves 212 is 0.2 - 2 mm, and the groove width of the second whisker introduction grooves 212 is marked with d3 in Figure 12 and Figure 19 A number of the second whisker introduction grooves 212 are spaced along the length direction of the cylindrical structure. The trajectory of a single second whisker introduction groove 212 extends along the outer wall arc section trajectory of the cylindrical structure. The second whisker introduction grooves 212 on the side of the cylindrical structure provided with the second whisker introduction grooves 212 form an angle a2 with respect to the length direction of the cylindrical structure, and this angle a2 is marked in Figure 19 indicated.
[0071] The bottom of the cylindrical structure of each moving blade 2 has a connecting piece A extending along its length direction. The bottom of the cylindrical structure of each stationary blade 1 is provided with a gap through which the connecting piece A of its corresponding moving blade 2 passes. The gap on the cylindrical structure of the stationary blade 1 extends along its length direction. The second stationary blade fixing piece 1012 correspondingly forms three installation areas distributed in an umbrella shape. The connecting piece at the bottom of the cylindrical structure of the moving blade 2 passes through the gap at the bottom of the cylindrical structure of its corresponding stationary blade 1. There is a margin for reciprocating movement between the connecting piece A on the cylindrical structure of each moving blade 2 and both ends of its corresponding gap. After the stationary blade 1 and the moving blade 2 are assembled, the three cylindrical structures of the stationary blade 1 are divided into a front cylindrical structure, a middle cylindrical structure, and a rear cylindrical structure distributed in an umbrella shape. The front cylindrical structure and the rear cylindrical structure are at the same horizontal height, and the middle cylindrical structure is higher than the height at which the front cylindrical structure and the rear cylindrical structure are located. The three installation areas of the second stationary blade fixing piece 1012 correspondingly install the front cylindrical structure, the middle cylindrical structure, and the rear cylindrical structure. After the stationary blade 1 and the moving blade 2 are assembled, the gap between the cylindrical structure forming the stationary blade 1 and the cylindrical structure forming the moving blade 2 installed inside it is 0.02 - 0.2 mm, so as to ensure that the movement of the moving blade 2 is smoother, and at the same time, the remaining beard will not be too long. The included angle a1 and the included angle a2 are matched after the stationary blade 1 and the moving blade 2 are assembled. By the matching of the included angle a1 and the included angle a2 after the stationary blade 1 and the moving blade 2 are assembled, the first beard guiding groove 211 intersects with its corresponding second beard guiding groove 212, or the first beard guiding groove 211 coincides with the second beard guiding groove 212 (not shown in the drawings).
[0072] During use, the stationary blade 1 is fixed, and the moving blade 2 can reciprocate along its length direction under the drive of the driving member of the razor blade head to shave off the beards entering through the first beard guiding groove 211 and the second beard guiding groove 212.
[0073] The third left tool holder 313 includes a vertical portion and a horizontal portion, and the third right tool holder 413 includes a vertical portion and a horizontal portion; the vertical portion of the third left tool holder 313 and the vertical portion of the third right tool holder 413 are pressed against the two ends of the three cylindrical structures of the fixed knife 1, and the horizontal portion of the third left tool holder 313 and the horizontal portion of the third right tool holder 413 are plugged and fixed, and the bottom of the second fixed knife fixing plate 1012 is pressed against the horizontal portion of the third left tool holder 313 and the horizontal portion of the third right tool holder 413 and fixed by screws, and the two ends of the second fixed knife fixing plate 1012 are pressed against the vertical portion of the third left tool holder 313 and the vertical portion of the third right tool holder 413; the bottom of the horizontal portion of the third left tool holder 313 has a fifth connecting ear 715 with a connecting hole, and the bottom of the horizontal portion of the third right tool holder 413 has a sixth connecting ear 715 with a connecting hole. Ear 716; A pair of coaxial and relatively arranged third connecting pins 813 are provided on the third knife holder 513, one third connecting pin 813 is rotatably connected to the connecting hole of the fifth connecting ear 715, and the other third connecting pin 813 is rotatably connected to the connecting hole of the sixth connecting ear 716; The upper end of the third transmission member 613 passes through the third knife holder 513 and the second fixed knife fixing plate 1012 from bottom to top, and three slots arranged at intervals are arranged therethrough, and the connecting piece A of the cylindrical structure of each movable knife 2 is correspondingly plugged into and matched with the slot of the third transmission member 613 after correspondingly passing through the gap on the cylindrical structure of its fixed knife 1; The driving end of the driving member is connected to the lower end of the third transmission member 613, and the three cylindrical structures of the knife 2 are driven to reciprocate along its length direction through the third transmission member 613 for shaving. Example
[0074] Based on the razor head disclosed in the first embodiment, the second embodiment, or the third embodiment, beard cutting teeth A are formed between adjacent second beard introduction grooves 212, and the groove wall surface of the second beard introduction groove 212 constitutes the cutting surface of the beard cutting teeth A, and the two opposite cutting surfaces of the beard cutting teeth A form an angle, as shown in FIG. 16, Figure 34 As shown, the angle a3 is greater than 0 degree and less than 150 degrees. Example
[0075] Based on the razor head disclosed in the first embodiment, the second embodiment, or the third embodiment, beard cutting teeth A are formed between adjacent second beard introduction grooves 212, the groove wall surface of the second beard introduction groove 212 constitutes the cutting surface of the beard cutting teeth A, and the two opposite cutting surfaces of the beard cutting teeth A are parallel to each other. Figure 16 As shown, see Figure 34 As shown, the angle a3 is 0 degree.
[0076] The above description is only for the best embodiments of the present invention and 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 razor blade head, characterized in that: It includes a stationary blade (1), the structure of which includes a stationary blade body, and a plurality of first beard guiding grooves (211) are provided on the upper part of the cylindrical structure body constituting the stationary blade body; and a movable blade (2), the structure of which includes a movable blade body, and a plurality of second beard guiding grooves (212) are provided on the upper part of the cylindrical structure body constituting the movable blade body; Moreover, the movable blade (2) constituted by the cylindrical structure body is inserted from one end of the cylindrical structure body of the stationary blade (1), the first beard guiding grooves (211) intersect or overlap with the second beard guiding grooves (212), and during use, the stationary blade (1) is fixed, and the movable blade (2) can reciprocate along its length direction under the drive of the driving member of the razor blade head to shave off the beards entering through the first beard guiding grooves (211) and the second beard guiding grooves (212); A plurality of the first beard guiding grooves (211) are spaced along the length direction of the cylindrical structure body, and the trajectory of a single first beard guiding groove (211) extends along the arc section trajectory of the outer wall of the cylindrical structure body; a plurality of the second beard guiding grooves (212) are spaced along the length direction of the cylindrical structure body, and the trajectory of a single second beard guiding groove (212) extends along the arc section trajectory of the outer wall of the cylindrical structure body; The fixed blade (1) has a fixed blade body formed by a cylindrical structure, and the moving blade (2) has a moving blade body formed by a cylindrical structure. The bottom of the cylindrical structure of the moving blade (2) has a connecting piece extending along its length direction. The bottom of the cylindrical structure of the fixed blade (1) is provided with a slit for the connecting piece of the moving blade (2) to pass through. The slit of the fixed blade (1) extends along its length direction. There is a margin for the reciprocating movement of the moving blade (2) between the two ends of the connecting piece of the moving blade (2) and the slit of the fixed blade (1). The razor head further includes a first left knife holder (311), a first right knife holder (411), a first knife seat (511), a first transmission member (611), and a driving member. The first left knife holder (311) includes a vertical portion and a horizontal portion, and the first right knife holder (411) includes a vertical portion and a horizontal portion. The vertical portion of the first left knife holder (311) and the vertical portion of the first right knife holder (411) are abutted between the two ends of the cylindrical structure of the fixed blade (1), and the horizontal portion of the first left knife holder (311) and the horizontal portion of the first right knife holder (411) are inserted and fixed. The bottom of the horizontal portion of the first left knife holder (311) has a first connecting ear (711) with a connecting hole, and the bottom of the horizontal portion of the first right knife holder (411) has a second connecting ear (712) with a connecting hole. The first knife seat (511) is provided with a pair of first connecting pins (811) that are coaxial and oppositely arranged. One first connecting pin (811) is rotatably connected to the connecting hole of the first connecting ear (711), and the other first connecting pin (811) is rotatably connected to the connecting hole of the second connecting ear (712). After the connecting piece of the moving blade (2) passes through the slit of the cylindrical structure of the fixed blade (1), it is inserted and matched with the upper end portion of the first transmission member (611) that passes through the first knife seat (511) from bottom to top. The driving end of the driving member is connected to the lower end of the first transmission member (611), and the cylindrical structure of the moving blade (2) is driven to reciprocate along its length direction to shave.
2. A razor head, characterized in that: it includes a fixed blade (1), the structure of which includes a fixed blade body, and several first beard guiding grooves (211) are provided on the upper part of the cylindrical structure forming the fixed blade body, and a moving blade (2), the structure of which includes a moving blade body, and several second beard guiding grooves (212) are provided on the upper part of the cylindrical structure forming the moving blade body, Moreover, the moving blade (2) composed of a cylindrical structure is inserted from one end of the cylindrical structure of the fixed blade (1). The first beard inlet groove (211) intersects or coincides with the second beard inlet groove (212). During use, the fixed blade (1) is fixed, and the moving blade (2) can reciprocate along its length direction under the drive of the driving member of the razor head to remove the beards entering through the first beard inlet groove (211) and the second beard inlet groove (212); several of the first beard inlet grooves (211) are spaced along the length direction of the cylindrical structure, and the trajectory of a single first beard inlet groove (211) extends along the arc segment trajectory of the outer wall of the cylindrical structure; several of the second beard inlet grooves (212) are spaced along the length direction of the cylindrical structure, and the trajectory of a single second beard inlet groove (212) extends along the arc segment trajectory of the outer wall of the cylindrical structure; the fixed blade body of the fixed blade (1) is composed of two cylindrical structures, and the two cylindrical structures are fixedly connected by a fixed blade insertion piece (911) located between them. The fixed blade insertion piece (911) of the fixed blade (1) has two pairs of insertion feet (912) extending along its length direction. The moving blade body of the moving blade (2) is composed of two cylindrical structures, and the two cylindrical structures are fixedly connected by a moving blade insertion piece (913) located between them. The moving blade (2) is inserted from one end of the fixed blade (1) such that the two pairs of insertion feet (912) are respectively located on the opposite sides of the moving blade insertion piece (913), and there is a margin for the reciprocating movement of the moving blade (2) between the two pairs of insertion feet (912) and the moving blade insertion piece (913); the razor head further includes a second left knife holder (312), a second right knife holder (412), a second knife seat (512), a second transmission member (612), a driving member, and a first fixed blade fixing piece (1011); the second left knife holder (312) includes a vertical portion and a horizontal portion, and the second right knife holder (412) includes a vertical portion and a horizontal portion; the vertical portion of the second left knife holder (312) and the vertical portion of the second right knife holder (412) abut between the two ends of the cylindrical structure of the fixed blade (1), and the horizontal portion of the second left knife holder (312) and the horizontal portion of the second right knife holder (412) are inserted and fixed. The bottom of the first fixed blade fixing piece (1011) abuts between the horizontal portions of the second left knife holder (312) and the second right knife holder (412) and is fixed by screws. The two ends of the first fixed blade fixing piece (1011) abut between the vertical portions of the second left knife holder (312) and the second right knife holder (412); the bottom of the horizontal portion of the second left knife holder (312) has a third connecting ear (713) with a connecting hole, and the bottom of the horizontal portion of the second right knife holder (412) has a fourth connecting ear (714) with a connecting hole;A pair of second connecting pins (812) that are coaxial and oppositely arranged are provided on the second tool block (512). One second connecting pin (812) is rotatably connected to the connecting hole of the third connecting ear (713), and the other second connecting pin (812) is rotatably connected to the connecting hole of the fourth connecting ear (714); the lower end of the moving tool insertion piece (913) of the moving tool (2) is in plug-in fit with the upper end part of the second transmission member (612) that passes through the second tool block (512) and the first fixed tool piece (1011) from bottom to top; the driving end of the driving member is connected to the lower end of the second transmission member (612), and the two cylindrical structures of the tool (2) are driven by the second transmission member (612) to reciprocate along their length directions for shaving.
3. A razor blade head, characterized in that: it includes a fixed blade (1), the structure of which includes a fixed blade body, and several first beard guiding grooves (211) are provided on the upper part of the cylindrical structure forming the fixed blade body, and a moving blade (2), the structure of which includes a moving blade body, and several second beard guiding grooves (212) are provided on the upper part of the cylindrical structure forming the moving blade body, Moreover, the moving blade (2) composed of a cylindrical structure is inserted from one end of the cylindrical structure of the fixed blade (1). The first beard inlet groove (211) intersects or coincides with the second beard inlet groove (212). During use, the fixed blade (1) is fixed, and the moving blade (2) can reciprocate along its length direction under the drive of the driving member of the razor head to remove the beards entering through the first beard inlet groove (211) and the second beard inlet groove (212). A plurality of the first beard inlet grooves (211) are spaced along the length direction of the cylindrical structure, and the trajectory of a single first beard inlet groove (211) extends along the arc section trajectory of the outer wall of the cylindrical structure. A plurality of the second beard inlet grooves (212) are spaced along the length direction of the cylindrical structure, and the trajectory of a single second beard inlet groove (212) extends along the arc section trajectory of the outer wall of the cylindrical structure. The fixed blade body of the fixed blade (1) is composed of three cylindrical structures, and the movable blade body of the movable blade (2) is composed of three cylindrical structures. The bottom of each cylindrical structure of the movable blade (2) has a connecting piece extending along its length direction. The bottom of each cylindrical structure of the fixed blade (1) is provided with a slit for the connecting piece of the corresponding movable blade (2) to pass through. The slit on the cylindrical structure of the fixed blade (1) extends along its length direction. There is a margin between the connecting piece on the cylindrical structure of each movable blade (2) and the two ends of the corresponding slit for reciprocating movement. The razor head also includes a third left blade holder (313), a third right blade holder (314), and a third right blade holder (315). The third left tool holder (313), the third tool holder (513), the third transmission member (613), the driving member and the second fixed knife fixing plate (1012); the third left tool holder (313) comprises a vertical portion and a horizontal portion, and the third right tool holder (413) comprises a vertical portion and a horizontal portion; the vertical portion of the third left tool holder (313) and the vertical portion of the third right tool holder (413) are abutted between the two ends of the three cylindrical structures of the fixed knife (1), the horizontal portion of the third left tool holder (313) and the horizontal portion of the third right tool holder (413) are plugged and fixed, and the bottom of the second fixed knife fixing plate (1012) is abutted between the horizontal portion of the third left tool holder (313) and the horizontal portion of the third right tool holder (413) The second fixed knife fixing sheet (1012) is fixed between the horizontal parts of the third left knife holder (313) and the vertical parts of the third right knife holder (413) by screws, and the two ends of the second fixed knife fixing sheet (1012) are against the vertical parts of the third left knife holder (313) and the vertical parts of the third right knife holder (413); the bottom of the horizontal part of the third left knife holder (313) has a fifth connecting ear (715) with a connecting hole, and the bottom of the horizontal part of the third right knife holder (413) has a sixth connecting ear (716) with a connecting hole; the third knife holder (513) is provided with a pair of coaxial and oppositely arranged third connecting pins (813), one third connecting pin (813) is rotatably connected to the connecting hole of the fifth connecting ear (715), and the other third connecting pin (813) is rotatably connected to the connecting hole of the fifth connecting ear (715), and the other third connecting pin (813) is rotatably connected to the connecting hole of the fifth connecting ear (715). The third transmission member (613) is rotatably connected to the connection hole of the sixth connection ear (716); the upper end of the third transmission member (613) passes through the third knife seat (513) and the second fixed knife fixing plate (1012) from bottom to top, and three slots arranged at intervals are arranged therethrough, and the connecting piece of the cylindrical structure of each movable knife (2) is plugged into and matched with the slot of the third transmission member (613) one by one after passing through the gap on the cylindrical structure of its fixed knife (1) respectively; the driving end of the driving member is connected to the lower end of the third transmission member (613), and the three cylindrical structures of the knife (2) are driven by the third transmission member (613) to move back and forth along the length direction thereof for shaving.
4. A razor head according to claim 3, characterized in that: The three cylindrical structures of the fixed blade (1) are divided into a front cylindrical structure, a middle cylindrical structure, and a rear cylindrical structure that are distributed in an umbrella shape; the front cylindrical structure and the rear cylindrical structure are at the same horizontal height, and the middle cylindrical structure is higher than the height at which the front cylindrical structure and the rear cylindrical structure are located; the second fixed blade fixing piece (1012) correspondingly forms three installation areas distributed in an umbrella shape, and the three installation areas respectively install the front cylindrical structure, the middle cylindrical structure, and the rear cylindrical structure.
5. A razor blade head according to claim 1 or 2 or 3, characterized in that: The wall thickness of the cylindrical structure constituting the fixed blade (1) is 0.05 - 5 mm; the gap between the cylindrical structure constituting the fixed blade (1) and the cylindrical structure constituting the moving blade (2) installed inside it is 0.02 - 0.2 mm.
6. A razor blade head according to claim 1 or 2 or 3, characterized in that: The groove width of the first beard guiding groove (211) is 0.2 - 2 mm, and the groove width of the second beard guiding groove (212) matches the groove width of the first beard guiding groove (211); the first beard guiding groove (211) on the side surface of the cylindrical structure provided with the first beard guiding groove (211) forms an angle with the length direction of the cylindrical structure, and the angle of this angle is 30 - 150 degrees. The second beard guiding groove (212) on the side surface of the cylindrical structure provided with the second beard guiding groove (212) forms an angle with the length direction of the cylindrical structure, and the two angles match.
7. A razor blade head according to claim 1 or 2 or 3, characterized in that: Beard cutting teeth are formed between adjacent second beard guiding grooves (212), the groove wall surface of the second beard guiding groove (212) constitutes the cutting surface of the beard cutting teeth, and the two opposite cutting surfaces of the beard cutting teeth form an angle, and the angle is 0 - 150 degrees.
8. A razor blade head according to claim 1 or 2 or 3, characterized in that: Beard cutting teeth are formed between adjacent second beard guiding grooves (212), the groove wall surface of the second beard guiding groove (212) constitutes the cutting surface of the beard cutting teeth, and the two opposite cutting surfaces of the beard cutting teeth are parallel to each other.
Citation Information
Patent Citations
Producing method for electric razor and its outer edge
CN1168311A
Shaver head
CN209175784U