A floating head structure and a shaver

Abstract

The present application relates to a floating cutter head structure, comprising a first ring blade, a second ring blade, a first cutting cover ring, a second cutting cover ring, the first cutting cover ring and the second cutting cover ring are arranged with the same center and are independent of each other, and the first cutting cover ring is located in the annular center of the second cutting cover ring; further comprising a first floating support assembly and a second floating support assembly for providing elastic support to the first ring blade and the second ring blade respectively; under the elastic support of the first floating support assembly, the first ring blade and the first cutting cover ring float together, under the elastic support of the second floating support assembly, the second ring blade and the second cutting cover ring float together, the floating of the first ring blade and the second ring blade is independent of each other, and the floating of the first cutting cover ring and the second cutting cover ring is also independent of each other. The first cutting cover ring and the second cutting cover ring can be independently adjusted in angle and height during shaving, so as to be more fitted to the facial skin and improve the shaving efficiency.

Description

Technical Field

[0001] This invention relates to the field of razor cutting tools, and particularly to a floating head structure and a razor. Background Technology

[0002] In a floating-head shaver, the shaver head is floatingly connected to the shaver frame, with a spring or slat in the middle of the frame allowing the shaver head to float up and down. Each shaver head includes a cutting unit that contacts the skin, but the shaving efficiency of a single cutting unit is relatively low.

[0003] Therefore, floating-head shavers on the market generally have multiple floating heads, thus integrating multiple cutting units. For example, a Chinese utility model patent with application number 200920058813.0 (publication number CN201436156U) discloses a floating-head shaver, including a shaver head and a shaver head fixing plate. The shaver head includes one or more sets of independent shaver head assemblies. The shaver head fixing plate is fixedly equipped with elastic components corresponding to the number of shaver head assemblies. Each shaver head assembly is directly mounted on the upper end of the corresponding elastic component, forming a floating connection with the shaver head fixing plate. Each shaver head assembly floats independently, allowing each shaver head surface to contact the skin at any angle during shaving, achieving a multi-angle close shave and resulting in a better and more comfortable shaving effect. Similarly, Chinese invention patent application number 201010179079.0 (publication number CN101830004A) discloses a floating head structure for an electric shaver, wherein there are two or more floating heads, and the blade pressure plates of the two or more floating heads are connected together or integrally formed. The outer blade shell of each group of floating heads is independent of each other. This structure enables each head to float independently and without affecting each other in all directions.

[0004] However, the multiple cutting units of the aforementioned multi-blade floating shaver are spatially far apart. When in contact with a large area of ​​the face, the multiple cutting units can achieve multi-angle contact. However, when the area of ​​the face in contact with the multi-blade floating shaver is small or the angle of contact with the face is special, only one cutting unit can contact the skin, and the shaving efficiency is still low. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a floating head structure that can better conform to facial skin and has higher shaving efficiency, in light of the current state of the technology.

[0006] The second technical problem to be solved by the present invention is to provide a razor with higher shaving efficiency in light of the current state of the prior art.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is as follows: the floating cutter head structure includes a first ring blade, a second ring blade, a first cutting cover ring covering the first ring blade, and a second cutting cover ring covering the second ring blade, characterized in that: the first cutting cover ring and the second cutting cover ring are arranged concentrically and are independent of each other, and the first cutting cover ring is located at the annular center of the second cutting cover ring.

[0008] It also includes a first floating support assembly that provides elastic support for the first ring blade and a second floating support assembly that provides elastic support for the second ring blade;

[0009] Under the elastic support of the first floating support assembly, the first ring blade and the first cutting cover ring float together. Under the elastic support of the second floating support assembly, the second ring blade and the second cutting cover ring float together. Furthermore, the floating of the first ring blade and the second ring blade are independent of each other, and the floating of the first cutting cover ring and the second cutting cover ring are also independent of each other.

[0010] To ensure that the first cutting cover ring remains at the annular center of the second cutting cover ring during floating, at least two guide grooves are equidistantly arranged along the outer periphery of the first cutting cover ring. The inner periphery of the second cutting cover ring is provided with guide pins corresponding to the positions and number of the guide grooves, with the guide pins pointing axially downwards. While the first and second cutting cover rings float independently, the first cutting cover ring can move up and down along the guide pins.

[0011] The outer periphery of the first cutting cover ring is further provided with an annular stop, which is located below the inner periphery of the second cutting cover ring. The diameter of the annular stop is larger than the diameter of the inner periphery of the second cutting cover ring. The annular stop prevents the first cutting cover ring from detaching upward from the second cutting cover ring.

[0012] Furthermore, the first ring blade includes a first annular support plate and a ring of first cutting feet distributed on the first annular support plate;

[0013] The second ring blade includes a second annular support plate and a ring of second cutting edges distributed around the outer periphery of the second annular support plate;

[0014] The first ring blade is located within the accommodating cavity formed by the second annular support plate and the second cutting foot. Independently floating first and second ring blades are respectively provided below the first and second cutting cover rings. Since the first cutting cover ring is located at the annular center of the second cutting cover ring, correspondingly, the inner ring formed by the first cutting foot is also located at the center of the outer ring formed by the second cutting foot.

[0015] Furthermore, the first blade foot is provided with a W-shaped blade, and the second blade foot is provided with an arc-shaped blade. The W-shaped blade and the arc-shaped blade are respectively adapted to the first cutting cover ring and the second cutting cover ring. The W-shaped blade and the blade on the first cutting cover ring can form multiple scissor cuts, and the arc-shaped blade and the blade on the second cutting cover ring provide greater comfort for the user when shaving.

[0016] To achieve the floating of the first ring blade, a first floating support assembly is connected to the first annular support plate. The first floating support assembly includes a first upper cover plate, a first spring, and a first hook. The first upper cover plate has at least two first connecting holes. The first hook includes a first base plate and a number of first hooks on the first base plate equal to the number of first connecting holes. The first annular support plate is connected to the first upper cover plate. The first hooks hook into the first connecting holes. The first spring is placed between the first base plate and the first upper cover plate to adjust the height of the first upper cover plate.

[0017] To achieve the floating of the second ring blade, a second floating support assembly is connected to the second annular support plate. The second floating support assembly includes a second upper cover plate, a second spring, and a second hook. The second upper cover plate has at least two second connecting holes. The second hook includes a second base plate and a second hook on the second base plate, which has the same number of hooks as the second connecting holes. The second annular support plate is connected to the second upper cover plate. The second hooks hook into the second connecting holes. The second spring is placed between the second base plate and the second upper cover plate to adjust the height of the second upper cover plate.

[0018] Furthermore, a first mounting plate extends inward from the inner edge of the first annular support plate, and the first mounting plate is connected to the first upper cover plate; a second mounting plate extends inward from the inner edge of the second annular support plate, and the second mounting plate is connected to the second upper cover plate, with a clearance transmission hole at the center of the second mounting plate; the first base plate of the first hook is placed on the upper surface of the second upper cover plate, and the first hook of the first hook passes through the clearance transmission hole. The first floating support assembly passes through the clearance transmission hole on the second mounting plate, allowing the first and second annular support plates to fit tightly together after the first and second floating support assemblies are installed, making the overall structure more compact and stable.

[0019] In order to transmit the rotation of the second ring blade to the first ring blade, the edge of the clearance transmission hole is formed with a notch corresponding to the number and position of the first hook. The notch locks the first hook, so that the rotation of the second ring blade drives the first hook and the first ring blade to rotate in sequence.

[0020] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: the shaver is characterized by: the application of the above-mentioned floating head structure.

[0021] Compared with the prior art, the advantages of the present invention are as follows: through the design of the first floating support component and the second floating support component, the first ring blade and the first cutting cover ring, and the second ring blade and the second cutting cover ring are respectively provided with freely floating elastic support, and the two sets of floating actions are relatively independent. In practical applications, the first cutting cover ring and the second cutting cover ring can independently adjust their angle and height, thereby better conforming to the facial skin, improving shaving efficiency, and achieving better shaving results; especially when the facial area contacted by the razor is small or the angle of contact with the face is special, the first cutting cover ring and the second cutting cover ring can also contact the skin simultaneously. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a razor according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the base according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the floating cutter head structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the floating cutter head structure from another angle according to an embodiment of the present invention;

[0026] Figure 5 This is an exploded view of the floating cutter head structure according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the first and second cutting cover rings according to an embodiment of the present invention;

[0028] Figure 7 This is a cross-sectional view of the first and second cutting cover rings according to an embodiment of the present invention. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-7 The above is a preferred embodiment of a floating cutter head structure of the present invention. The floating cutter head structure 200 includes a first cutting cover ring 1, a second cutting cover ring 2, a first ring blade 3 adapted to the first cutting cover ring 1, a second ring blade 4 adapted to the second cutting cover ring 2, a first floating support assembly 5 for floating the first ring blade 3, and a second floating support assembly for floating the second ring blade 4.

[0031] When the razor is in use, the first cutting ring 1 and the second cutting ring 2 come into contact with the skin. The first cutting ring 1 and the second cutting ring 2 are concentric, and the first cutting ring 1 is located at the center of the ring of the second cutting ring 2. Figure 3 As shown.

[0032] like Figure 6 , 7 As shown, the first cutting cover ring 1 is provided with a first ring blade 10; the outer periphery of the first cutting cover ring 1 is bent downward along the axial direction to form a first bent portion 13, and the first bent portion 13 is bent outward along the radial direction to form an annular retaining edge 12. Four guide grooves 11 are provided at equal intervals along the circumference on the annular retaining edge 12 of the first cutting cover ring 1; a downward limiting post 14 is provided at the bottom center of the first cutting cover ring 1. In addition, the second cutting cover ring 2 is provided with a second ring blade 20; an outer ring wall 22 extends downward along the outer periphery of the second cutting cover ring 2, and an inner ring wall 23 extends downward along the inner periphery of the second cutting cover ring 2. The second cutting cover ring 2, the outer ring wall 22 and the inner ring wall 23 together form an annular cavity 2a; a guide pin 21 corresponding to the position and number of the guide grooves 11 is provided on the inner ring wall 23, and the guide pin 21 extends downward along the axial direction.

[0033] like Figure 7 As shown, the annular retaining edge 12 is located below the inner ring wall 23 of the second cutting cover ring 2, and the diameter of the annular retaining edge 12 is larger than the diameter of the inner ring wall 23 of the second cutting cover ring 2; the guide pin 21 on the inner ring wall 23 is engaged with the guide groove 11 on the annular retaining edge 12. When the first cutting cover ring 1 and the second cutting cover ring 2 float independently, the first cutting cover ring 1 floats up and down along the guide pin 21, and due to the limiting effect of the inner ring wall 23 on the annular retaining edge 12, the first cutting cover ring 1 will not fall off during the floating process.

[0034] like Figure 5 As shown, the first ring blade 3 includes a first annular support plate 31 and a ring of first cutting feet 32 ​​mounted on the first annular support plate 31. The first cutting feet 32 ​​are provided with W-shaped cutting edges 33. A first mounting plate 34 extends inward from the inner edge of the first annular support plate 31. Similarly, the second ring blade 4 includes a second annular support plate 41 and a ring of second cutting feet 42 mounted on the outer periphery of the second annular support plate 41. The second cutting feet 42 are provided with arc-shaped cutting edges 43. A second mounting plate 44 extends inward from the inner edge of the second annular support plate 41. In addition, the second annular support plate 41 is provided with a perforation hole 411. The center of the second mounting plate 44 is provided with a clearance transmission hole 441. The edge of the clearance transmission hole 441 is formed with three notches 442. The second mounting plate 44 is also provided with a third connecting hole 443 surrounding the clearance transmission hole 441.

[0035] The first ring blade 3 is located in the cavity 4a formed by the second annular support plate 41 and the second blade foot 42. The first ring blade 3 and the second ring blade 4 are arranged concentrically. The aforementioned arc-shaped blade 43 is housed in the annular cavity 2a. The W-shaped blade 33 and the arc-shaped blade 43 cooperate with the first ring blade 10 and the second ring blade 20 respectively to form a scissor difference for cutting hair.

[0036] like Figure 4 , 5 As shown, the first floating support assembly 5 includes a first upper cover plate 51, a first spring 52, and a first hook 53. The first upper cover plate 51 has three first connecting holes 511 evenly spaced circumferentially. The upper surface of the first upper cover plate 51 has a limiting hole 512 at its center, which mates with the upper limit post 14 of the first cutting cover ring 1. The first hook 53 includes a first base plate 531 and three first hooks 532 arranged upwards along the outer periphery of the first base plate 531. During installation, the first mounting plate 34 is first snapped onto the first upper cover plate 51. Then, the first spring 52 is placed on the first base plate 531. The three first hooks 532 of the first hook 53 hook the three first connecting holes 511 respectively, thus placing the first spring 52 between the first base plate 531 and the first upper cover plate 51. The height of the first upper cover plate 51 relative to the first base plate 531 is adjusted by the first spring 52. In other words, the height of the first ring blade 3 is adjusted by the first spring 52.

[0037] like Figure 4 , 5 As shown, the second floating support assembly includes a second upper cover plate 61, a second spring 62, and a second hook 63. The second upper cover plate 61 has four second connecting holes 611, and a mounting platform 612 is provided at the center of the upper surface of the second upper cover plate 61. The second hook 63 includes a second base plate 631 and four second hooks 632 arranged upward along the outer periphery of the second base plate 631. During installation, the second mounting plate 44 is first connected to the second upper cover plate 61 through the third connecting hole 443. Then, the second spring 62 is placed on the second base plate 631, and the four second hooks 632 are hooked into the four second connecting holes 611 respectively, so that the second spring 62 is positioned between the second base plate 631 and the second upper cover plate 61. The height of the second upper cover plate 61 relative to the second base plate 631 is adjusted by the second spring 62. That is, the height of the second ring blade 4 is adjusted by the second spring 62. In addition, the bottom surface of the second base plate 631 is provided with positioning holes 633.

[0038] The entire floating cutter head structure 200 installation process is as follows:

[0039] Step 1: First, snap the first mounting plate 34 into the first upper cover plate 51, then place the first spring 52 on the first base plate 531, and then use the three first hooks 532 of the first hook 53 to hook the three first connecting holes 511 respectively.

[0040] Step 2: First, connect the second mounting plate 44 to the second upper cover plate 61 through the third connecting hole 443. Then, place the second spring 62 on the second base plate 631. Then, use the four second hooks 632 to hook the four second connecting holes 611 respectively.

[0041] Step 3: Place the first base plate 531 of the first hook 53 through the clearance transmission hole 441 on the second mounting plate 44 onto the mounting platform 612 of the second upper cover plate 61, and at the same time, insert the three first hooks 532 into the three notches 442 of the clearance transmission hole 441 respectively.

[0042] Step 4: Cover the first cutting ring 1 on the first cutter foot 32. The limiting post 14 at the bottom center of the first cutting ring 1 is engaged with the limiting hole 512 at the center of the upper surface of the first upper cover plate 51. Cover the second cutting ring 2 on the second cutter foot 42. The second cutter foot 42 is housed in the annular cavity 2a. At the same time, the guide pin 21 is engaged in the guide groove 11.

[0043] This invention also protects a shaver that utilizes the aforementioned floating head structure 200. The shaver includes a shaver body 100, which has a connection port for connecting to the floating head structure 200. A positioning block 101 is provided within the connection port, and the positioning block 101 cooperates with a positioning hole 633, such as... Figure 1 , 2 As shown. When the razor is in use, the positioning block 101 sequentially drives the second hook 63, the second upper cover plate 61, and the second ring blade 4 to rotate. Then, the three notches 442 on the second ring blade 4 drive the three first hooks 532 of the first hook 53 to rotate, thereby sequentially driving the first upper cover plate 51 and the first ring blade 3 to rotate. The floating of the first ring blade 3 and the second ring blade 4 is respectively achieved by the first floating support assembly 5 and the second floating support assembly. The first ring blade 3 and the second ring blade 4 respectively drive the first cutting cover ring 1 and the second cutting cover ring 2 to float. During shaving, the first ring blade 3 and the second ring blade 4 can tilt at different angles or float at different heights according to the shape of the facial bones, so that the first cutting cover ring 1 and the second cutting cover ring 2 can fit the facial skin more closely and improve shaving efficiency.

Claims

1. A floating cutter head structure, comprising a first ring blade (3), a second ring blade (4), a first cutting cover ring (1) covering the first ring blade (3), and a second cutting cover ring (2) covering the second ring blade (4), characterized in that: The first cutting cover ring (1) and the second cutting cover ring (2) are arranged at the same center and are independent of each other, and the first cutting cover ring (1) is located at the center of the second cutting cover ring (2). It also includes a first floating support assembly (5) that provides elastic support for the first ring blade (3) and a second floating support assembly that provides elastic support for the second ring blade (4); Under the elastic support of the first floating support assembly (5), the first ring blade (3) and the first cutting cover ring (1) float together. Under the elastic support of the second floating support assembly, the second ring blade (4) and the second cutting cover ring (2) float together. Furthermore, the floating of the first ring blade (3) and the second ring blade (4) are independent of each other, and the floating of the first cutting cover ring (1) and the second cutting cover ring (2) are also independent of each other. The first ring blade (3) includes a first annular support plate (31) and a ring of first cutting feet (32) distributed on the first annular support plate (31); The second ring blade (4) includes a second annular support plate (41) and a ring of second blade feet (42) distributed around the outer periphery of the second annular support plate (41); The first ring blade (3) is located in the accommodating cavity (4a) formed by the second annular support plate (41) and the second blade foot (42); A first floating support assembly (5) is connected to the first annular support plate (31). The first floating support assembly (5) includes a first upper cover plate (51), a first spring (52), and a first hook (53). The first upper cover plate (51) has at least two first connecting holes (511). The first hook (53) includes a first base plate (531) and first hooks (532) arranged on the first base plate (531) in the same number as the first connecting holes (511). The first annular support plate (31) is connected to the first upper cover plate (51). The first hooks (532) hook the first connecting holes (511). The first spring (52) is placed between the first base plate (531) and the first upper cover plate (51) to adjust the height of the first upper cover plate (51). A second floating support assembly is connected to the second annular support plate (41). The second floating support assembly includes a second upper cover plate (61), a second spring (62), and a second hook (63). The second upper cover plate (61) has at least two second connecting holes (611). The second hook (63) includes a second base plate (631) and a number of second hooks (632) on the second base plate (631) that are the same as the number of second connecting holes (611). The second annular support plate (41) is connected to the second upper cover plate (61). The second hooks (632) hook the second connecting holes (611). The second spring (62) is placed between the second base plate (631) and the second upper cover plate (61) to adjust the height of the second upper cover plate (61).

2. The floating cutter head structure according to claim 1, characterized in that: The outer periphery of the first cutting cover ring (1) is provided with at least two guide grooves (11) at equal intervals, and the inner periphery of the second cutting cover ring (2) is provided with guide pins (21) corresponding to the position and number of the guide grooves (11), and the guide pins (21) are axially downward.

3. The floating cutter head structure according to claim 2, characterized in that: The outer periphery of the first cutting cover ring (1) is also provided with an annular stop (12), which is located below the inner periphery of the second cutting cover ring (2). The diameter of the annular stop (12) is larger than the diameter of the inner periphery of the second cutting cover ring (2).

4. The floating cutter head structure according to claim 1, characterized in that: The first cutting foot (32) is provided with a W-shaped cutting edge (33), and the second cutting foot (42) is provided with an arc-shaped cutting edge (43). The W-shaped cutting edge (33) and the arc-shaped cutting edge (43) are respectively adapted to the first cutting cover ring (1) and the second cutting cover ring (2).

5. The floating cutter head structure according to claim 1, characterized in that: The inner edge of the first annular support plate (31) extends inward to form a first mounting plate (34), which is connected to the first upper cover plate (51). The inner edge of the second annular support plate (41) extends inward to form a second mounting plate (44), which is connected to the second upper cover plate (61). The center of the second mounting plate (44) is provided with a clearance transmission hole (441). The first base plate (531) of the first hook (53) is placed on the upper surface of the second upper cover plate (61), and the first hook (532) of the first hook (53) passes through the clearance transmission hole (441).

6. The floating cutter head structure according to claim 5, characterized in that: The edge of the clearance transmission hole (441) is formed with a notch (442) corresponding to the number and position of the first hook (532). The notch (442) locks the first hook (532), so that the second ring blade (4) rotates while driving the first hook (532) and the first ring blade (3) to rotate in sequence.

7. A razor, characterized in that: The razor is equipped with a floating head structure as described in any one of claims 1 to 6.

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