Shaver and tool bit device thereof

Abstract

The invention belongs to the field of shavers, and particularly relates to a shaver and a tool bit device thereof. Comprising a cutter head base, at least one cutter set detachably installed on a driving shell, a static cutter assembly arranged on the cutter head base and provided with a static cutter frame and a static blade fixed to the static cutter frame, a movable cutter assembly and a movable blade which comprises a movable cutter holder, fixed to the movable cutter holder and movably arranged on the inner side of the static blade. Wherein the static knife rest is arranged on the knife head base and is provided with a pair of guide parts which are oppositely arranged in the length direction, and static knife fixing parts used for fixing the static knife blade are integrally formed on the opposite sides of the pair of guide parts. The static knife rest is provided with the pair of guide parts which are oppositely arranged in the length direction, and the static knife fixing parts are integrally formed on the opposite sides of the pair of guide parts, so that the static blade can be directly mounted and fixed on the static knife fixing parts, and a mounting piece or a connecting piece does not need to be additionally arranged between the static knife rest and the static blade.

Description

Technical Field

[0001] The invention belongs to the field of shavers, in particular to a shaver and a cutter head device thereof. Background Art

[0002] Traditional razors are mainly divided into manual razors and electric razors. Compared with manual razors, electric razors are driven by electricity, which is more labor-saving and has a better cleaning effect. Therefore, electric razors are more popular at present. Most of the existing electric razor head assemblies are provided with two inner and outer blades or an inner blade and an outer blade net. When in use, the outer blade or the outer blade net of the electric razor rolls along the face, and the blades of the inner and outer blades are rubbed against each other or the blade edge of the inner blade rubs against the surface of the outer blade net, thereby cutting off the beard and achieving shaving. Among them, since the outer blade is mainly in contact with the skin, it can also be called a static blade, and the inner blade needs to swing in the length direction relative to the outer blade, and it can also be called a dynamic blade.

[0003] In order to make the outer blade fit the face better, the outer blade is usually set to float, that is, a static blade holder is movably set on the blade head seat, and then the outer blade is installed on the static blade holder, so that the outer blade can move up and down along the height direction of the blade head seat. When installing the outer blade of the razor currently on the market, it is necessary to first fix the outer blade on a special mounting frame, and then fix the mounting frame to the static blade holder. The installation is very cumbersome, and the structure is complex and easy to increase the weight of the razor, and the user experience is not good. Summary of the invention

[0004] The object of the present invention is to provide a razor and a cutter head device thereof, wherein a stationary blade can be directly mounted on a stationary blade holder.

[0005] The object of the present invention is achieved in that:

[0006] The present invention proposes a blade device of a razor, which has the following characteristics, including: a blade base, which is detachably mounted on a driving housing, at least one blade group, which is arranged on the blade base and has: a stationary blade assembly, which includes a stationary blade holder and a stationary blade fixed on the stationary blade holder, and a movable blade assembly, which includes a movable blade holder and a movable blade fixed on the movable blade holder and movably arranged on the inner side of the stationary blade; wherein the stationary blade holder is arranged on the blade base and has a pair of guide parts which are arranged opposite to each other in the length direction, and a stationary blade fixing part for fixing the stationary blade is integrally formed on opposite sides of the pair of guide parts.

[0007] The blade device of the electric shaver proposed by the present invention may also have the following characteristics: the interior of the stationary blade fixing part is hollow to form an accommodating space for accommodating the movable blade assembly, and a movable blade mounting part for mounting the movable blade holder is formed at the bottom of the stationary blade fixing part.

[0008] The blade head device of the electric shaver proposed in the present invention may also have such a feature, wherein the movable blade mounting portion comprises: a mounting frame, a mounting plate, which is separately or integrally arranged on the mounting frame, the movable blade assembly further comprises a movable blade spring, an upper spring seat for mounting the upper end of the movable blade spring is provided on the side of the movable blade seat facing the mounting plate, and a lower spring seat for mounting the lower end of the movable blade spring is provided on the mounting plate.

[0009] The blade device of the electric shaver proposed in the present invention may also have such a feature, wherein the mounting frame has: a pair of transverse clamping edges, which are arranged along the length direction of the accommodating space, and a longitudinal clamping edge, which is arranged along the width direction of the accommodating space and connected to the pair of transverse clamping edges, and the pair of transverse clamping edges and the longitudinal clamping edges enclose a mounting area for mounting the mounting plate.

[0010] The blade device of the electric shaver proposed in the present invention can also have the following characteristics: a longitudinal clamping edge is provided and is located at one end of a pair of transverse clamping edges; an upper limit groove opening upward is formed at one end of the transverse clamping edge close to the longitudinal clamping edge; a lower limit groove opening downward is formed at one end of the transverse clamping edge away from the longitudinal clamping edge; an upper limit buckle edge and a lower limit buckle edge respectively matching the upper limit groove and the lower limit groove are provided on the mounting plate.

[0011] The blade device of the electric shaver proposed in the present invention may also have such a feature, wherein a pointed limiting tip is formed at one end of the transverse clamping edge away from the longitudinal clamping edge, and a limiting notch for inserting the limiting tip is provided on one side of the lower limiting buckle edge on the mounting plate.

[0012] The cutter head device of the electric shaver proposed by the present invention may also have the following characteristics: a limiting groove is provided on the upper surface or the lower surface of the longitudinal clamping edge, and a limiting convex edge cooperating with the limiting groove is provided on the mounting plate.

[0013] The blade device of the electric shaver proposed in the present invention can also have such a feature, wherein a pair of longitudinal clamping edges are provided, respectively located at the two ends of a pair of transverse clamping edges, and the longitudinal clamping edges and the transverse clamping edges are both provided with downwardly recessed limit slots, and the mounting plate is provided with limit convex edges cooperating with the limit slots all around.

[0014] The blade head device of the electric shaver proposed by the present invention can also have the following characteristics: the stationary blade fixing part is V-shaped, having two upper ends and a bottom end connecting the two upper ends, the stationary blade is fixed on the upper end, and the moving blade seat is movably arranged on the bottom end through the moving blade spring.

[0015] The present invention also proposes a shaver having the following characteristics, including: a reciprocating drive device having a drive housing, and a cutter head device installed on the reciprocating drive device and working under the drive of the reciprocating drive device, wherein the cutter head device is the cutter head device of the shaver as described above.

[0016] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0017] The razor and its blade head device proposed in the present invention have a pair of guide parts that are arranged opposite to each other in the length direction of the static blade holder, and the static blade fixing parts are integrally formed on the opposite sides of the pair of guide parts, so that the static blade can be directly installed and fixed on the static blade fixing part, and there is no need to set up additional mounting parts or connecting parts between the static blade holder and the static blade. This simplifies the structure, reduces the installation and disassembly steps, is more convenient, and is conducive to miniaturization and lightweight of the overall structure, thereby improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the shaver of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the knife set of the present invention installed on the knife head base.

[0020] Figure 3 It is a cross-sectional view of the first knife group of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the static tool holder of the first tool group of the present invention installed on the tool head base.

[0022] Figure 5 It is a cross-sectional view of the static tool holder of the first tool group of the present invention installed on the tool head base.

[0023] Figure 6 It is a structural exploded view of the first knife group of the present invention.

[0024] Figure 7 It is a schematic diagram of the bottom structure of the first structure of the movable knife mounting part of the first knife group of the present invention.

[0025] Figure 8 It is a first structural schematic diagram of the first knife assembly installation frame of the present invention.

[0026] Fig. 9 It is a first structural schematic diagram of the first knife assembly mounting plate of the present invention.

[0027] Fig.10 It is a third structural schematic diagram of the first knife assembly installation frame of the present invention.

[0028] Fig.11 It is a third structural schematic diagram of the first knife assembly mounting plate of the present invention.

[0029] Fig.12 It is a structural schematic diagram of the movable knife assembly of the second knife group of the present invention.

[0030] Fig.13 It is a structural exploded view of the second knife group of the present invention.

[0031] Fig.14 It is a schematic structural diagram of the third knife group of the present invention.

[0032] Fig.15 It is a structural exploded view of the third knife group of the present invention.

[0033] Fig.16 It is a schematic diagram of placing the driving device of the present invention on the wireless charging module.

[0034] Fig.17 Schematic diagram of the driving module of the present invention.

[0035] Fig.18 It is a cross-sectional view of the driving device of the present invention.

[0036] Fig.19 It is an exploded schematic diagram of the installation structure of the movable knife seat and the driving module of the present invention.

[0037] Fig. 20 It is a schematic diagram of the installation structure of the power module of the present invention.

[0038] Fig.21 It is a schematic diagram of the installation structure of the return spring of the present invention.

[0039] Fig. 22 It is a schematic diagram of the structure of the pulling roller in Example 2 of the present invention.

[0040] Fig.23 It is a schematic diagram of the installation structure of the pulling roller in Example 2 of the present invention.

[0041] Fig.24 It is an exploded view of the installation structure of the pulling roller in Example 2 of the present invention.

[0042] Meanings of the symbols in the figure: reciprocating drive device 1, drive housing 11, cutter head device 2, cutter head base 21, guide groove 211, blocking edge 2111, limit blocking edge 212, cutter head cover 23, cutter group 3, first cutter group 3a, second cutter group 3b, third cutter group 3c, fourth cutter group 3d, fifth cutter group 3e, stationary cutter holder 31, first stationary cutter holder 31a, second stationary cutter holder 31b, guide portion 310, guide strip 3101, limit stopper 3102, roller mounting hole 311, stationary cutter fixing portion 313, connecting plate 3131, support platform 3132, buckle structure 3133, accommodating space 314, movable cutter mounting portion 315, lower spring mounting seat 31 51. Installation frame 316. Installation area 3160. Horizontal clamping edge 3161. Upper limit groove 31611. Lower limit groove 31612. Limiting tip 31613. Longitudinal clamping edge 3162. Installation plate 317. Lower spring seat 3171. Upper limit buckle edge 3172. Lower limit buckle edge 3173. Limiting notch 3174. Limiting convex edge 3175. Stationary blade 32. Moving blade seat 33. Upper spring seat 331. Upper spring mounting seat 333. Moving blade 34. Moving blade spring 35. Guide spring 36. Moving blade spring 37. Moving blade spring 38. Lifting roller 4. Roller body 40. Protrusion 41. Flange 411. Concave edge 412. Concave portion 42. Roller mounting end 43. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with specific embodiments:

[0044] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of the embodiments of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "before" and "after" quoted in the embodiments of this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantially changing the technical content.

[0045] When an element is referred to as being “connected,” “disposed,” or “mounted” to another element, it may be directly connected to the other element or may be indirectly connected, disposed, or mounted to the other element via an intervening element.

[0046] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] Embodiment 1:

[0048] This embodiment provides a shaver, which includes a driving device 1 and a cutter head device 2. The driving device 1 has a driving housing 11 disposed outside, and a driving module for driving the cutter head device 2 to work and a power module for supplying power to the driving module are arranged inside the driving housing 11. The cutter head device 2 is detachably mounted on the driving device 1 and works under the drive of the driving device 1.

[0049] like Figure 1 and Figure 2 As shown, the cutter head device 2 has a cutter head base 21 and at least one cutter group 3. The cutter head base 21 is detachably mounted on the drive housing 11, and a cutter head cover 23 matching the drive housing 11 is provided on the outside of the cutter head base 21. The cutter group 3 is movably arranged on the cutter head base 21.

[0050] <Knife set installation>

[0051] In this embodiment, if Figure 1 As shown, there are five knife groups 3, which are distributed along the front-to-back direction of the knife head base 21, namely the first knife group 3a, the second knife group 3b, the third knife group 3c, the fourth knife group 3d and the fifth knife group 3e from front to back. The two knife groups located on the outermost sides of the five knife groups (i.e., the first knife group 3a and the fifth knife group 3e) are fine scissor groups, which can be used to trim shorter hair; the knife group located in the middle (i.e., the third knife group 3c) is a trimming knife group, which can be used to trim longer hair; the remaining two knife groups located on the second outer sides (i.e., the second knife group 3b and the fourth knife group 3d) are also fine scissor groups, which can be used to trim shorter hair. Figure 2-Figure 4As shown, each knife assembly has a stationary knife assembly and a movable knife assembly, and the movable knife assembly is movably arranged inside the stationary knife assembly, the stationary knife assembly has a stationary blade 32 and a guide portion 31, and the movable knife assembly has a movable knife holder 33 and a movable blade 34. The stationary knife holder 31 is movably arranged on the cutter head base 21 (specifically, the stationary knife holder 31 can move in the height direction relative to the cutter head base 21), and the movable blade 34 is movably arranged inside the stationary blade 32, and can reciprocate along its own length direction relative to the stationary blade 32. When in use, the stationary blade 32 contacts the skin and moves along the skin driven by the user's hand, and can also float up and down along the height direction of the cutter head base 21 with the stationary knife holder 31; the movable blade 34 mainly plays a cutting role, and can move up and down along the height direction with the stationary blade 32 inside the stationary blade 32, and the movable blade 34 and the stationary blade 32 are almost kept in a state of contact, and the movable blade 34 can cooperate with the stationary blade 32 to cut the beard when reciprocating along its own length direction.

[0052] like Figure 4 and Figure 5 As shown, the stationary tool holder 31 can be installed on the tool head base 21 in a floating manner along the height direction of the tool head base 21, and the specific installation structure between the two is as follows: the guide portion 310 of the stationary tool holder 31 is located on the outer side of the tool head base 21 to form a vertically arranged guide strip 3101, and the outer side of the tool head base 21 is correspondingly provided with a guide groove 211, and the bottom of the guide groove 211 is provided with a blocking edge 2111 for blocking the bottom end of the guide strip 3101, and the guide strip 3101 is inserted into the guide groove 211 from top to bottom, and When the guide strip 3101 moves to the lower end and abuts against the blocking edge 2111, the guide part 310 moves to the lowest position; the guide part 310 is located on the inner side of the cutter head base 21 to form a limited stopper 3102, and the inner side of the cutter head base 21 is provided with a limited stopper edge 212 corresponding to the limited stopper 3102. The limited stopper 3102 is located below the limited stopper edge 212, and the limited stopper edge 212 is used to limit the travel of the guide part 310. When the two are in contact, the guide part 310 moves to the highest position. The guide part 310 is located on the inner side of the cutter head base 21 and is further provided with a guide spring 36 between the cutter head base 21. One end of the guide spring 36 abuts against the cutter head base 21, and the other end abuts against the guide part 310, which is used to support and reset the guide part 310.

[0053] A stationary blade fixing portion 313 for fixing the stationary blade 32 is integrally formed on opposite sides of a pair of guide portions 310 (the side of the guide portion 310 facing the other guide portion 310). The stationary blade 32 is directly fixed on the stationary blade fixing portion 313 without the need for additional installation through a connecting part or an installation part. On the one hand, the structure can be simplified to facilitate lightweighting. On the other hand, the installation of the stationary blade 32 and the guide portion 310 is more compact, which facilitates the synchronous floating of the guide portion 310 and the stationary blade 32.

[0054] In the first knife group 3a and the fifth knife group 3e of this embodiment, the first knife group 3a and the fifth knife group 3e have the same structure, and their specific structures are as follows: Figure 6 As shown, the static blade fixing part 313 is an integrated structure connecting the two guide parts 310. The static blade fixing part 313 has a pair of connecting plates 3131 connecting the two guide parts 310. The outer sides of the two connecting plates 3131 are provided with a plurality of fixing heads. The static blade 32 is a curved sheet structure, and a plurality of fixing holes matching the fixing heads are provided at its edge. The static blade 32 is fixed by connecting the fixing holes and the fixing heads. The static blade fixing part 313 is located on the opposite side of the pair of guide parts 310 and has a support platform 3132 protruding from the guide part 310, which is used to support the two end edges of the static blade 32. In this embodiment, the static blade 32 adopts an installation structure directly fixed on the static blade holder 31, and no other connection structure is required. The structure is simple, and the installation and disassembly are convenient and quick, and it can be conducive to the development of miniaturization and lightweight products.

[0055] like Figure 4 and Figure 6 As shown, the inner sides of the two connecting plates 3131 are hollowed out to form a receiving space 314 for receiving the moving knife assembly (the receiving space 314 can also be formed by hollowing out the interior of the stationary knife fixing portion 313), and the bottoms of both ends of the stationary knife fixing portion 313 are respectively formed with moving knife mounting portions 315 for mounting the moving knife seat 33, and the two moving knife mounting portions 315 are symmetrically arranged. Figure 3 , Figure 6 As shown, the movable knife mounting portion 315 comprises a mounting frame 316, a mounting plate 317 and a movable knife spring 35. In this embodiment, the mounting plate 317 is detachably mounted on the mounting frame 316. The movable knife spring 35 is pressed between the movable knife seat 33 and the mounting plate 317 to support the movable knife seat 33 and enable the movable blade 34 on the movable knife seat 33 to always move close to the stationary blade 32. At the same time, the elastic coefficient of the guide spring 36 is smaller than the elastic coefficient of the movable knife spring 35, so that the movable blade 34 on the movable knife seat 33 can always be close to the stationary blade 32, thereby improving the shearing effect. The mounting structure of the movable knife spring 35 is as follows: an upper spring seat 331 for mounting the upper end of the movable knife spring 35 is provided on the side of the movable knife seat 33 facing the mounting plate 317, and a lower spring seat 3171 for mounting the lower end of the movable knife spring 35 is provided on the mounting plate 317. The upper and lower ends of the movable knife spring 35 are respectively sleeved on the upper spring seat 331 and the lower spring seat 3171.

[0056] Since the mounting frame 316 and the mounting plate 317 of the present embodiment are detachable mounting structures, when installing the stationary knife assembly and the moving knife assembly, first fix the stationary knife blade 32 and the moving knife blade 34 on the stationary knife fixing portion 313 and the top of the moving knife seat 33 respectively, then insert the upper end of the moving knife spring 35 into the upper spring seat 331, and then install the moving knife seat 33 with the moving knife blade 34 and the moving knife spring 35 from bottom to top along the mounting frame 316 into the accommodating space 314, and then install the mounting plate 317 on the mounting frame 316 (at the same time, the lower end of the moving knife spring 35 is mounted on the lower spring seat 3171), and the combined installation of the stationary knife assembly and the moving knife assembly can be completed, which is very convenient and quick.

[0057] In this embodiment, the detachable structure between the mounting frame 316 and the mounting plate 317 provides the following four modes:

[0058] The first type: Figure 6-Figure 9 As shown, the mounting frame 316 has a pair of transverse clamping edges 3161 arranged along the length direction of the accommodation space 314 and a longitudinal clamping edge 3162 arranged along the width direction of the accommodation space 314, and the longitudinal clamping edge 3162 connects the pair of transverse clamping edges 3161, and the pair of transverse clamping edges 3161 and the longitudinal clamping edge 3162 enclose a mounting area 3160 for mounting the mounting plate 317, and the mounting area 3160 is a rectangular area with one side open. An upper limit groove 31611 opening upward is formed at one end of the transverse clamping edge 3161 close to the longitudinal clamping edge 3162, and a lower limit groove 31612 opening downward is formed at one end of the transverse clamping edge 3161 away from the longitudinal clamping edge 3162, and an upper limit buckle edge 3172 and a lower limit buckle edge 3173 matching the upper limit groove 31611 and the lower limit groove 31612 are provided on the mounting plate 317. A pointed limiting tip 31613 is formed at one end of the transverse clamping edge 3161 away from the longitudinal clamping edge 3162, and a limiting notch 3174 is provided on the side of the lower limiting buckle edge 3173 on the mounting plate 317 for the limiting tip 31613 to be inserted. A limiting groove 31621 is provided on the upper surface of the longitudinal clamping edge 3162, and a limiting convex edge 3175 is provided on the mounting plate 317 to cooperate with the limiting groove 31621, that is, the limiting convex edge 3175 is buckled on the upper part of the limiting groove 31621. In order to facilitate the insertion of the mounting plate 317, the outer sides of the upper limiting buckle edge 3172 and the limiting convex edge 3175 can be set to an arc or inclined surface, so that they have a guiding function, making it easier to insert the mounting plate 317. When installing this type of installation structure, the installation plate 317 can be inserted into the opening side of the installation area 3160 at an angle, and when disassembling, it only needs to press down slightly on the lower limit buckle edge 3173 to remove it, which makes disassembly and assembly very convenient.

[0059] The second type: is basically the same as the first type mentioned above, except that a limiting groove is provided on the lower surface of the longitudinal clamping edge 3162, and a limiting convex edge cooperating with the limiting groove is provided on the mounting plate 317. The protruding direction of the limiting convex edge is opposite to that of the first type mentioned above, and needs to be buckled in the lower part of the limiting groove.

[0060] The third type: Fig.10 and Fig.11 As shown, the mounting frame 316 has a pair of transverse clamping edges 3161 arranged along the length direction of the accommodating space 314 and a pair of longitudinal clamping edges 3162 arranged along the width direction of the accommodating space 314, and the pair of longitudinal clamping edges 3162 are respectively connected to the two ends of the pair of transverse clamping edges, and the pair of transverse clamping edges 3161 and the pair of longitudinal clamping edges 3162 are enclosed to form an installation area for installing the mounting plate 317, and the installation area is a rectangular area closed on all sides.

[0061] A pair of longitudinal clamping edges 3162 are each provided with an upper limit clamping groove 31622 that is concave downwards, and the mounting plate 317 is a cross-shaped plate. The mounting plate 317 is provided with upper limit clamping blocks 3175 that protrude upwards and cooperate with the upper limit clamping groove 31622 along both longitudinal sides; a pair of transverse clamping edges 3161 are provided with lower limit clamping grooves 31614 that are concave upwards at the bottom, and the mounting plate 317 is provided with limit edges 3176 that can be buckled in the lower limit clamping grooves 31614 along both transverse sides, wherein the lower limit clamping grooves 31614 are designed as follows Fig.10 The dovetail groove shown can further enhance the connection firmness between the mounting frame 316 and the mounting plate 317. In addition, in order to facilitate the buckling of the mounting plate 317, the outer side of the upper limit block 3175 can be set to an arc or an inclined surface to provide a guiding effect, making it easier to insert the mounting plate.

[0062] The fourth type is basically the same as the third type, except that a pair of longitudinal edges 3162 and a pair of transverse edges 3161 are provided with downwardly recessed mounting slots, the mounting plate is rectangular, and there are limit convex edges on all sides that match the mounting slots. When installing, the rectangular plate can be directly buckled into the mounting area from bottom to top. In order to facilitate the buckling of the mounting plate 317, the outer side of the limit convex edges on all sides can be set into an arc or inclined surface to provide a guiding function, making it easier to insert the mounting plate. Compared with the above three methods, although this method has a simple structure, it is slightly more difficult to disassemble after installation, and it is not easy to remove the mounting plate.

[0063] In the second knife group 3b and the fourth knife group 3d of this embodiment, the second knife group 3b and the fourth knife group 3d have the same structure, and their specific structures are as follows: Figure 12-13As shown, the static blade fixing part 313 is an integrated structure connecting the two guide parts 310. The static blade fixing part 313 has a pair of connecting plates 3131 connecting the two guide parts 310. The outer sides of the two connecting plates 3131 are provided with a plurality of fixing heads. The static blade 32 is a curved sheet structure, and a plurality of fixing holes matching the fixing heads are provided at its edge. The static blade 32 is fixed by connecting the fixing holes and the fixing heads. The static blade fixing part 313 is located on the opposite side of the pair of guide parts 310 and has a support platform 3132 protruding from the guide part 310, which is used to support the two end edges of the static blade 32. In this embodiment, the static blade 32 adopts an installation structure directly fixed on the static blade holder 31, and no other connection structure is required. The structure is simple, and the installation and disassembly are convenient and quick, and it can be conducive to the development of miniaturization and lightweight products.

[0064] The inner sides of the two connecting plates 3131 are hollowed out to form a receiving space 314 for receiving the moving knife assembly (the receiving space 314 may be formed by hollowing out the interior of the stationary knife fixing portion 313). The moving knife seat 33 is fixed to the moving blade 34 by a snap-fit ​​structure, and a moving knife spring 37 is provided in the middle of the moving knife seat 33. One end of the moving knife spring 37 is provided on the moving knife seat 33, and the other end is provided on the reciprocating drive device 1 to support the moving knife seat 33. It can be seen that the installation structure of the second knife group 3b and the fourth knife group 3d is different from the installation structure of the first knife group 3a and the fifth knife group 3e, but both structures are for allowing the moving knife assembly to move relative to the stationary knife assembly. Therefore, the two structures can be replaced according to actual needs, or all knife groups adopt the same installation structure.

[0065] In the third knife group 3c of the present embodiment, the structure of the third knife group 3c is different from the structures of the first knife group 3a, the second knife group 3b, the fourth knife group 3d and the fifth knife group 3e. The specific structure is as follows: Fig.14 and Fig.15As shown, the static knife assembly has two static knife holders 31 symmetrically arranged along the length direction. The two static knife holders 31 have the same structure and both have a guide portion 310. Symmetric static knife fixing portions 313 are formed on the opposite sides of the two guide portions 310. The static knife blade 32 is clamped on the static knife fixing portion 313 through a snap-fit ​​structure, and the static knife blade 32 is mounted above the two static knife holders 31. The static knife fixing portion 313 is V-shaped, that is, the entire outer shape is V-shaped, and the V-shape has two upper ends located at both ends of the upper part, and the two upper ends are provided with a snap-fit ​​structure 313 for clamping the static knife blade 32. 3. The V-shaped bottom horizontally connects the bottom ends of the two upper ends to form a moving knife mounting portion 315, on which a lower spring mounting seat 3151 is provided. The two ends of the moving knife seat 33 are provided with upper spring mounting seats 333 at the lowest part of the bottom of the moving knife mounting portion 315. The upper and lower ends of the moving knife spring 38 are respectively sleeved on the upper spring mounting seat 333 and the lower spring mounting seat 3151 to support the moving knife seat 33. Thus, the moving knife seat 33 is installed above the moving knife mounting portion 315 through the moving knife spring 38, and the moving blade 34 is fixed on the moving knife seat 33 through the buckle structure. When installing this structure, it is necessary to first install the moving knife assembly on the static knife holder 31, and then install the static blade 32 on the outer side of the moving blade 34. It can be seen that the installation structure of the third knife group 3c is different from the installation structures of the other knife groups mentioned above, but these three knife group structures are all for allowing the movable knife assembly to move relative to the stationary knife assembly. Therefore, these three structures can be replaced according to actual needs, or all knife groups can adopt the same installation structure.

[0066] <Drive device>

[0067] The driving device 1 is a reciprocating driving device, which has a driving housing 11, a driving module and a power module. The driving module and the power module are both installed inside the driving housing, and the outer end of the driving module extends out of the driving housing 11 to be linked with the knife holder device 2, thereby driving the knife group 3 on the knife holder device 2 to work. The driving housing 11 is also provided with a switch button 12 and a charging port 15, and a wireless charging module 16 can also be configured. Fig.16 As shown, when charging, the driving device 1 or the entire shaver can be directly placed on the wireless charging module 16 for charging. The driving housing 11 is a shell-like structure with a hollow interior, and an opening is provided at the top, and a cover plate 13 is provided at the opening.

[0068] like Fig.17 and Fig.18As shown, the driving module mainly includes a driving body 5 installed inside the driving housing 11, a driving seat A6 and at least one driving member A60. The driving body 5 contains at least one output seat A51. The driving seat A6 is separately arranged on the output seat A51. The driving member A60 is integrally formed on the driving seat A6 and is used to connect to the moving knife seat 33 of the moving knife assembly. Under the action of the driving body 5, the moving knife seat 33 can reciprocate in the left and right directions. The driving member A connected to the moving knife seat is formed integrally with the driving seat A. The material can be plastic or metal. The integral arrangement makes the structure more compact and firm, and facilitates disassembly and assembly, simplifies the structure, and is conducive to the development of miniaturization and lightweight.

[0069] A first mounting portion 52 is formed on the output seat A51, and a second mounting portion 61 is formed on the drive seat A6. The first mounting portion 52 and the second mounting portion 61 are fixed together by a fixing member 62. A mounting groove A63 is formed on the side of the second mounting portion 61 facing away from the first mounting portion 52. The driving member A60 includes a pair of driving rods A64 symmetrically arranged on both sides of the mounting groove A63. The upper ends of the pair of driving rods A64 can be inserted into the same moving knife seat 33, thereby achieving connection with the moving knife seat 33. A supporting spring A65 for supporting the moving knife seat 33 is installed in the mounting groove A63. The lower end of the supporting spring A65 is installed in the mounting groove A63, and a spring fixing sheet 651 is fixed on the upper end. The spring fixing sheet 651 can be installed in the moving knife seat 33.

[0070] The reciprocating drive device 1 also has a driving component C, which is a driving rod C66 (an integrally formed structure in the attached figure) that is integrally formed on the driving seat A6 or separately clamped on the driving seat A6, and there are two driving rods C66, which are arranged on the front and rear sides of the mounting groove A63 along the front and rear directions, and can be used to connect a movable knife seat 33 respectively.

[0071] The driving body 5 further comprises at least one output seat B53, and the reciprocating driving device 1 further comprises a driving seat B7 and a driving member B70, wherein the driving seat B7 is integrally arranged on the output seat B53, and the driving member B70 is integrally formed on the side of the driving seat B7 away from the output seat B53. A mounting groove B71 is formed on the side of the driving seat B7 facing away from the first mounting portion 52, and the driving member B70 comprises a pair of driving rods B72 symmetrically arranged on both sides of the mounting groove B71, and a supporting spring B73 for supporting the moving knife seat 33 is installed in the mounting groove B71. The lower end of the supporting spring B73 is arranged in the mounting groove B71, and the upper end is provided with a spring fixing sheet 731, and the spring fixing sheet 731 can be installed in the moving knife seat 33. The reciprocating driving device 1 further comprises a driving member D, which is a driving rod D74 integrally formed on the driving seat B7 or separately clamped on the driving seat B7 (in the figure, the driving rod D74 is installed on the driving seat B7 in a split clamping manner).

[0072] Specifically, Fig.19 As shown, the number of the knife groups 3 is 5, and these 5 knife groups have 5 movable knife seats arranged in parallel along the front-to-back direction of the knife head base 21, which are respectively the first movable knife seat 33a, the second movable knife seat 33b, the third movable knife seat 33c, the fourth movable knife seat 33d and the fifth movable knife seat 33e from front to back. The driving seat A6 is arranged at the rear side in the front-to-back direction and cooperates with 3 of the 5 movable knife seats, which are the fifth movable knife seat 33e, the fourth movable knife seat 33d and the third movable knife seat 33c arranged from back to front in the front-to-back direction. The driving seat B7 is arranged at the front side in the front-to-back direction and cooperates with the other 2 movable knife seats of the 5 movable knife seats, which are the second movable knife seat 33b and the first movable knife seat 33a arranged from back to front in the front-to-back direction.

[0073] A pair of driving rods C66 are provided on the driving seat A6, which are arranged on the front and rear sides of the supporting spring A65 along the front-rear direction. The driving rod C66 located on the front side is connected to the third moving knife seat 33c, and the driving rod C66 located on the rear side is connected to the fifth moving knife seat 33e; the pair of driving rods A64 are commonly connected to the fourth moving knife seat 33d. At the same time, the supporting spring A65 between the pair of driving rods A64 is fixed to the middle part of the fourth moving knife seat 33d through the spring fixing sheet 651, so as to support the fourth moving knife seat 33d.

[0074] A driving rod D74 is provided on the driving seat B7 and is arranged in front of the supporting spring B73 in the front-rear direction. The driving rod D74 is connected to the first moving knife seat 33a. The pair of driving rods B72 are connected to the second moving knife seat 33b. At the same time, the supporting spring B73 between the pair of driving rods B72 is fixed to the middle part of the second moving knife seat 33b through the spring fixing sheet 731, so as to support the second moving knife seat 33b.

[0075] The driving body 5 also includes a coil 54, a vibration frame 55 and a return spring 56. The coil 54 is installed in the driving housing 11. The vibration frame 55 is arranged outside the coil 54 and is installed with a first vibration part 551 and a second vibration part 552 which are integrally arranged at one end and separated from each other at the other end. The first vibration part 551 is arranged at the front side in the front-to-back direction and fixed to the output seat A51 by screws; the second vibration part 552 is arranged at the rear side in the front-to-back direction and fixed to the output seat B53 by screws. The first vibration part 551 and the second vibration part 552 are both located above the coil 54, and permanent magnets are fixed to the first vibration part 551 and the second vibration part 552 on the side facing the coil 54.

[0076] like Fig. 20As shown, the battery module has a battery 81 and a controller 82. A mounting frame 14 is installed inside the driving housing 11. The battery 81 is detachably mounted on both sides of the mounting frame 14. The controller 82 is installed at the bottom of the mounting frame 14. The mounting frame 14 is hollow inside. The coil 54, the vibration frame 55 and the return spring of the driving body 5 are all installed inside the frame 14. Fig.21 As shown, there are four reset springs 56, which are respectively pressed between the two ends of the first vibration part 551 and the inner wall of the mounting frame 14, and between the two ends of the second vibration part 552 and the inner wall of the mounting frame 14, so as to facilitate the reset of the first vibration part 551 and the second vibration part 552. After power is turned on, the first vibration part 551 and the second vibration part 552 on the vibration frame 55 vibrate back and forth in the left and right directions through the principle of electromagnetic induction, thereby prompting each movable knife seat to move left and right to achieve a shaving effect. The method of resetting by using a reset spring is not only simple in structure and easy to install, but also has a good reset effect and low cost.

[0077] The reciprocating drive device 1 and the cutter head device 2 can be detachably installed by setting a magnetic block, that is, a first magnetic block is provided in the driving shell 11 of the reciprocating drive device 1, and a second magnetic block 22 is provided on the cutter head base 21. The first magnetic block and the second magnetic block 22 attract each other, and the magnetic disassembly and assembly structure is simple and convenient.

[0078] Embodiment 2:

[0079] This embodiment is based on the above embodiment 1. Figure 1 As shown, the cutter head device 2 is also provided with a lifting roller 4 between two adjacent cutter groups 3, and the lifting roller 4 is installed on the cutter group 3. Fig. 22 As shown, the lifting roller 4 has a roller body 40 and a roller mounting end 43. The roller body 40 is provided with at least two convex parts 41 distributed along the axial direction, and two adjacent convex parts 41 are connected by a concave part 42. The roller mounting end 43 is located at two ends of the roller body 40 along the length direction, and is used to mount the roller body 40 on the knife group 3. When the lifting roller 4 rolls on the skin, the skin is lifted under the action of the convex part 41 and the concave part 42.

[0080] In this embodiment, if Fig. 22As shown in (a), there are two convex parts 41 and one concave part 42, and the concave part 42 is located between two adjacent convex parts 41. In the process of contacting with the face, the most protruding part in the middle of the convex part 41 forms a supporting section for pressing the skin, and the two sides of the supporting section form a lifting section for squeezing the facial skin. The lifting sections on the opposite sides of the two convex parts 41 are connected by a smooth transition or connected by a straight line to form the concave part 42. The diameter of the lifting sections on both sides of the supporting section decreases as the distance from the supporting section increases, that is, the entire convex part 41 is a shuttle-shaped rotating body structure with an outer diameter gradually decreasing from the middle to both sides. The surface of the convex part 41 of this structure is smooth. When in contact with the skin, on the one hand, it can reduce friction and make it easier to cooperate with the knife group for shaving; on the other hand, it can stretch the skin more smoothly, causing the skin to be tightened.

[0081] In actual situations, if Fig. 22 As shown in (b), three convex parts 41 may be provided, and there are two corresponding concave parts 42. Only when at least two convex parts 41 are provided, a concave part 42 can be formed between two convex parts 41, and when the two convex parts 41 are in contact with the skin, the skin on both sides can be squeezed and pulled toward the middle, so that the skin at the position of the concave part 42 can also be tightened.

[0082] In another embodiment, the abutment section 411 and the lifting section 412 may have a clear dividing line. In this case, the cross-sectional outer contour shape of the abutment section 411 may be an arc convex outwardly, an execution shape parallel to the axis, or other shapes, and its main function is to roll on the skin surface to reduce the friction of the shaver; the cross-sectional outer contour shape of the lifting section 412 may be one or more of an inclined straight line, an outward convex arc, and an inward concave arc, and its main function is to lift the skin; the recess 42 may be directly formed by the lifting sections 412 on the opposite sides of the two connected protrusions 41, or it may be formed by the lifting sections 412 on the opposite sides of the two connected protrusions 41 and a transition section located between the two lifting sections 412, that is, the transition section is located at the bottom of the recess 42, and its cross-sectional outer contour shape may also be one or more of a horizontal straight line, an outward convex arc, an inward concave arc, and a wave.

[0083] In this embodiment, the roller mounting end 43 of the lifting roller 4 is mounted on the static blade holder 31 and is located on one side of the static blade 32, so that the lifting roller 4 can move along the height direction with the static blade 32. Specifically, when in use, when the knife group 3 contacts the protruding parts on the skin such as the mandible and the Adam's apple, the knife group 3 moves along the height direction of the knife head base 21 relative to the knife head base 21, and the lifting roller 4 moves along the height direction of the knife head base 21 in coordination with the movement of the knife group 3. The lifting roller 4 is mounted on the knife head base 21 through the static blade holder 31, and the static blade holder 31 has a pair of guide portions 310 arranged opposite to each other in the length direction, and the pair of guide portions 310 protrude toward the same side to form a protruding portion, and roller mounting holes 311 for inserting two roller mounting ends 43 are opened on opposite sides of the pair of protruding portions, and the roller mounting ends 43 are columnar, and the two ends are inserted into the roller mounting holes 311 located on both sides during installation. That is to say, the lifting roller 4 is directly mounted on the static blade holder 31, and no additional connection structure is required, which simplifies the structure, saves costs, and makes the structure more compact and simple, and is easy to install, which is conducive to the lightweight and miniaturization of the electric shaver. A convex ring 44 protruding from the roller mounting end 43 is provided between the roller body 40 and the roller mounting end 43. The convex ring 44 can form positioning and limiting when the roller mounting end 43 cooperates with the roller mounting hole 311, and can also enhance the stability of the structural installation.

[0084] The two knife groups 3 are respectively the first knife group 3a located at the front side and the second knife group 3b located at the rear side. The roller mounting end 43 can be mounted on the static knife frame 31 of the first knife group 3a or the second knife group 3b. For example, the roller mounting end 43 can be mounted on the front side of the static knife frame 31 of the first knife group 3a; the roller mounting end 43 can be mounted on the rear side of the static knife frame 31 of the first knife group 3a (i.e., the front side of the static knife frame 31 of the second knife group 3b), and can also be mounted on the rear side of the static knife frame 31 of the second knife group 3b. Figure 5 As shown, the roller mounting end 43 is mounted on the front side of the static blade holder 31 of the second blade assembly 3b, the guide portion 310 of the static blade holder 31 of the second blade assembly 3b protrudes forward to open a roller mounting hole 311, and then the roller mounting end 43 is inserted into the roller mounting hole 311 to achieve installation. The lifting roller 4 floats following the static blade holder 31 of the blade assembly 3 on which it is installed.

[0085] When the lifting roller 4 is located between the first blade group 3a and the second blade group 3b, during operation, when a protruding part is encountered on the skin, the first blade group 3a will first float along the skin, and the lifting roller 4 and the second blade group 3b will then float following the first blade group 3b. At this time, the rotation of the lifting roller 4 is not easily hindered, and a transition is formed between the first blade group 3a and the second blade group 3b, so that the blade group can move more smoothly on the skin. In addition, when the first blade group 3a on the front side contacts the skin, the lifting roller 4 also contacts the skin subsequently. The lifting roller 4 can reduce the friction between the blade group and the skin, so that the blade head device 2 of the electric shaver can move further smoothly on the skin.

[0086] The technical effects of the above embodiments are as follows:

[0087] The razor and its blade head device proposed in the above embodiment, since the static blade holder has a pair of guiding parts arranged opposite to each other in the length direction, and the static blade fixing parts are integrally formed on the opposite sides of the pair of guiding parts, the static blade can be directly installed and fixed on the static blade fixing part, and there is no need to set up additional mounting parts or connecting parts between the static blade holder and the static blade, which simplifies the structure, reduces the installation and disassembly steps, is more convenient, and is conducive to the miniaturization and lightweight of the overall structure, thereby improving the user experience.

[0088] Furthermore, in the above-mentioned cutter head device, a moving knife fixing part is also provided at the bottom of the stationary knife fixing part, and the moving knife holder is installed on the moving knife fixing part through a moving knife spring and is placed inside the stationary knife blade, wherein the moving knife fixing part can be a separate mounting frame and mounting plate connecting structure, which is convenient for placing the moving knife holder and the moving knife blade into the accommodating space in the stationary knife fixing part from bottom to top during installation, thereby simplifying the knife group installation steps and improving the installation and disassembly efficiency.

[0089] Furthermore, in the reciprocating drive device of the above-mentioned shaver, since the drive seat and the drive member are integrally formed, the structure of the drive device is greatly simplified, which not only makes disassembly and assembly more convenient, but also meets the requirements of miniaturization and lightweight of the shaver, greatly improving the user experience; at the same time, the vibration frame of the driving body is reset by a reset spring, which not only has a simple structure and low cost, but also is easy to install and has a good reset effect, thereby improving work efficiency.

[0090] Furthermore, in the above-mentioned blade head device, since a lifting roller is additionally provided, and the lifting roller contains at least two convex parts, and two adjacent convex parts are connected by a concave part, when the user uses the razor, when the blade head rolls along the facial contour, the lifting roller will also contact the face and roll on the skin, reducing the friction resistance of the blade group during the rolling process. After the convex part of the lifting roller contacts the skin, it will press and stretch the skin, and the skin in the concave part between the two adjacent convex parts will also have a squeezing and lifting effect, realizing a massage function; at the same time, the stretched skin will make it easier to spread the beard, making it easier for the blade group to cut the beard, improving the cleanliness of the beard and reducing the risk of allergies. At the same time, the skin can also achieve the purpose of wrinkle resistance and firmness after being stretched.

[0091] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A razor head device, mounted on a reciprocating drive device (1) of the razor, characterized in that: include: The cutter head base (21) is detachably mounted on the drive housing (11). At least one knife group (3) is arranged on the knife head base (21) and comprises: The static knife assembly comprises a static knife holder (31) and a static knife blade (32) fixed on the static knife holder (31). A movable blade assembly comprises a movable blade seat (33) and a movable blade (34) fixed on the movable blade seat (33) and movably arranged on the inner side of the stationary blade (32); The stationary blade holder (31) is arranged on the blade head base (21) and has a pair of guide parts (310) arranged opposite to each other in the length direction, and stationary blade fixing parts (313) for fixing the stationary blade (32) are integrally formed on opposite sides of the pair of guide parts (310).

2. The razor head device according to claim 1, characterized in that: The interior of the stationary knife fixing portion (313) is hollow to form an accommodating space (314) for accommodating the moving knife assembly, and a moving knife mounting portion (315) for mounting the moving knife seat (33) is formed at the bottom of the stationary knife fixing portion (313).

3. The razor head device according to claim 2, characterized in that: in, The movable knife mounting portion (315) comprises: Mounting frame (316), The mounting plate (317) is separately or integrally arranged on the mounting frame (316). The movable knife assembly also has a movable knife spring (35); an upper spring seat (331) for mounting the upper end of the movable knife spring (35) is provided on the side of the movable knife seat (33) facing the mounting plate (317); and a lower spring seat (3171) for mounting the lower end of the movable knife spring (35) is provided on the mounting plate (317).

4. The razor head device according to claim 3, characterized in that: in, The installation frame (316) has: A pair of transverse clamping edges (3161) are arranged along the length direction of the accommodation space (314), A longitudinal clamping edge (3162) is arranged along the width direction of the accommodation space (314) and connects the pair of transverse clamping edges (3161). The pair of transverse clamping edges (3161) and the longitudinal clamping edges (3162) enclose and form a mounting area for mounting the mounting plate (317).

5. The razor head device according to claim 4, characterized in that: The longitudinal clamping edge (3162) is provided with one and is located at one end of the pair of transverse clamping edges (3161); an upper limit groove (31611) opening upward is formed at one end of the transverse clamping edge (3161) close to the longitudinal clamping edge (3162); and a lower limit groove (31612) opening downward is formed at one end of the transverse clamping edge (3161) away from the longitudinal clamping edge (3162). The mounting plate (317) is provided with an upper limit buckle edge (3172) and a lower limit buckle edge (3173) which respectively match the upper limit groove (31611) and the lower limit groove (31612).

6. The razor head device according to claim 5, characterized in that: in, A pointed limiting tip (31613) is formed at one end of the transverse clamping edge (3161) away from the longitudinal clamping edge (3162), and a limiting notch (3174) for inserting the limiting tip (31613) is provided on one side of the lower limiting buckle edge (3173) on the mounting plate (317).

7. The shaver head device according to claim 5 or 6, characterized in that: in, A limiting groove (31621) is provided on the upper surface or the lower surface of the longitudinal clamping edge (3162), and a limiting convex edge (3175) cooperating with the limiting groove (31621) is provided on the mounting plate (317).

8. The razor head device according to claim 4, characterized in that: in, A pair of longitudinal clamping edges (3162) are provided, respectively located at the two ends of the pair of transverse clamping edges (3161); the longitudinal clamping edge (3162) and the transverse clamping edge (3161) are both provided with downwardly recessed limiting clamping grooves, and the mounting plate (317) is provided with limiting convex edges cooperating with the limiting clamping grooves around the four sides.

9. The razor head device according to claim 1, characterized in that: The stationary knife fixing portion (313) is V-shaped, having two upper ends and a bottom end connecting the two upper ends, the stationary knife blade (32) is fixed on the upper end, and the moving knife seat is movably arranged on the bottom end through a moving knife spring.

10. A razor, characterized in that: include: A reciprocating drive device (1) having a drive housing (11), The cutter head device (2) is mounted on the reciprocating drive device (1) and works under the drive of the reciprocating drive device (1). Wherein, the cutter head device (2) is a cutter head device of a shaver as described in any one of claims 1 to 9.

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