Blade assembly and razor having it

Abstract

This application discloses a razor head assembly and a razor having the same. The razor head assembly includes a drive gear, a driven gear, and a razor head unit. The drive gear is driven by a power source; the driven gear meshes with the drive gear. The razor head unit includes a transmission mechanism and a shaving unit. The transmission mechanism is connected to the driven gear and the shaving unit. The transmission mechanism includes a first transmission mechanism and a second transmission mechanism. The shaving unit includes a first shaving unit and a second shaving unit. The first transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the reciprocating movement of the first shaving unit, and the second transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the rotational movement of the second shaving unit. This application not only achieves the combined function of reciprocating shaving and rotary shaving, but also realizes that a single power source drives two shaving units with different movement modes, effectively solving the problem that existing composite razors require multiple power sources.

Description

Technical Field

[0001] This application relates to the field of small household appliance technology, and in particular to a blade assembly and a shaver. Background Technology

[0002] Electric shavers are common small household appliances, typically employing either reciprocating or rotary shaving techniques. Reciprocating shavers are suitable for shaving long beards and curly hair, while rotary shavers are superior in handling short hair and produce less noise and vibration. To meet diverse shaving needs, hybrid shavers combining both techniques have emerged on the market, aiming for a more comprehensive shaving experience.

[0003] However, existing multi-function shavers typically have some drawbacks. Most multi-function shavers require multiple drive sources to power different types of razors, resulting in complex structures, increased energy consumption, and higher costs. Furthermore, the layout design of existing razor head assemblies is often not compact enough, making it difficult to control the size of the razor head while ensuring the cutting area, resulting in a large overall product size that is inconvenient for users to operate and store. Summary of the Invention

[0004] The purpose of this application is to provide a blade assembly and a razor having the same.

[0005] To achieve at least one of the above-mentioned objectives, one embodiment of this application provides a cutting head assembly, comprising:

[0006] A drive gear, which is driven by a power source;

[0007] Driven gear, which meshes with driving gear;

[0008] The blade head unit includes a transmission mechanism and a shaving unit, wherein the transmission mechanism is connected to the driven gear and the shaving unit;

[0009] The transmission mechanism includes a first transmission mechanism and a second transmission mechanism, and the shaving unit includes a first shaving unit and a second shaving unit. The first transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the reciprocating movement of the first shaving unit, and the second transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the rotational movement of the second shaving unit.

[0010] The blade assembly provided in this application, through the cooperation of the driven gear and the driving gear, and the connection of two transmission mechanisms to the driven gear, converts the rotational power of the driving gear into the driving force for the movement of two shaving units via the driven gear and the transmission mechanism. This not only realizes the combined function of reciprocating shaving and rotary shaving, achieving efficient processing of hair of different lengths and types, but also enables a single power source to drive two shaving units with different movement modes. This effectively solves the problem that existing composite shavers require multiple power sources, reduces noise and vibration, and improves the user's shaving experience.

[0011] As a further improvement of one embodiment of this application, multiple driven gears are provided, and the multiple driven gears are arranged at circumferential intervals along the driving gear. Multiple sets of cutter head units are provided in one-to-one correspondence with the driven gears.

[0012] This layout, with multiple driven gears meshing with the driving gear, integrates multiple shaving head units. Each driven gear synchronously receives the rotational power from the driving gear and performs the shaving action through the corresponding shaving head unit. This achieves synchronous operation of multiple shaving head units driven by a single power source, greatly increasing the coverage area of ​​the shaving head assembly and thus improving shaving efficiency. The multiple driven gears distributed around the driving gear not only avoid interference between the driven gears and the shaving head units, but also, with this circumferential distribution design, result in a compact structure. This expands the shaving area while controlling the size of the shaver head, improving the overall working efficiency of the shaving head assembly, and also balances the vibration during shaver operation, enhancing stability.

[0013] As a further improvement of one embodiment of this application, the first transmission mechanism and the second transmission mechanism are respectively disposed on both sides of the driven gear.

[0014] This design makes full use of the space on both sides of the driven gear and optimizes the overall layout structure. The first transmission mechanism and the second transmission mechanism are located on both sides of the driven gear, which makes the structure of the razor head assembly more compact and reduces the overall structural size of the razor head assembly and the shaver head. On the other hand, it is beneficial for the driven gear to drive the first transmission mechanism and the second transmission mechanism at the same time, reducing mutual interference between the first transmission mechanism and the second transmission mechanism and improving operational stability.

[0015] As a further improvement of one embodiment of this application, the first transmission mechanism includes an eccentric member and a swing member;

[0016] The eccentric component is fixedly connected to the driven gear, and their rotation center lines coincide.

[0017] The oscillating member is connected between the eccentric member and the first shaving unit, and has an offset hole adapted to the eccentric member and a linkage part that cooperates with the first shaving unit. The eccentric member is fitted in the offset hole and converts the rotation of the driven gear into the oscillation of the oscillating member.

[0018] With this configuration, when the driven gear rotates, the eccentric component fixedly connected to it rotates synchronously. Through the cooperation between the eccentric component and the offset hole on the oscillating component, the rotation of the eccentric component can cause the oscillating component to oscillate, thereby causing the linkage to drive the first shaving unit to oscillate back and forth. In this way, the rotational power of the driven gear is converted into the driving force for the reciprocating movement of the first shaving unit.

[0019] As a further improvement of one embodiment of this application, the cutter head unit further includes a cutter head seat, the end of the swing member away from the linkage part is rotatably connected to the cutter head seat, and the eccentric member is disposed between the driven gear and the cutter head seat.

[0020] With this configuration, the oscillating component can rotate around the end connected to the cutter head seat to achieve oscillation. Moreover, the cutter head seat can provide stable support for the oscillating component, and the space between the cutter head seat and the driven gear provides sufficient space for the movement of the eccentric component and the oscillating component, while also avoiding interference from other components on the movement of the eccentric component and the oscillating component.

[0021] As a further improvement of one embodiment of this application, the first shaving unit includes an outer blade holder, a first elastic member, an outer blade, and an inner blade. The swing member is connected to the inner blade. The outer blade holder is connected to the blade head seat. The outer blade is fixedly connected to the outer blade holder, and a space is formed between the two for the inner blade to reciprocate. The first elastic member is connected between the outer blade holder and the inner blade, and the first elastic member supports the inner blade so that the inner blade remains against the outer blade.

[0022] This design allows the inner blade to reciprocate under the influence of the oscillating component. The space between the outer blade and the outer blade holder not only limits the trajectory of the inner blade's reciprocating movement but also protects it. The first elastic element ensures a tight fit between the inner and outer blades, thereby guaranteeing efficient hair cutting.

[0023] As a further improvement of one embodiment of this application, the first shaving unit further includes a second elastic member, the two ends of which are respectively connected to the outer blade holder and the blade head seat.

[0024] With this design, the second elastic element provides flexible support for the outer blade holder. During shaving, this not only increases the contact area and fit between the blade head assembly and the face, enhancing the blade head assembly's adaptability to facial contours and improving shaving comfort, but also cushions the impact of the shaving process, reducing skin irritation.

[0025] As a further improvement of one embodiment of this application, the cutter head assembly further includes a cover, the cover being fixedly connected to the cutter head seat, and the outer cutter holder being slidably engaged with the cover along the deformation direction of the second elastic member.

[0026] This design enhances the mobility of the outer blade holder relative to the casing along the deformation direction of the second elastic element, further improving the flexibility of the blade head to adapt to facial contours and enhancing shaving comfort.

[0027] As a further improvement of one embodiment of this application, the second transmission mechanism includes a transmission member, a transmission shaft, and a gear set. The transmission member is configured to convert the rotational power of the driven gear into the rotational power of the transmission shaft. The axis of the transmission shaft is perpendicular to the rotational center line of the driven gear. The gear set is configured to transmit the rotational power of the transmission shaft to the second shaving unit and convert it into a driving force for the rotational movement of the second shaving unit.

[0028] With this configuration, the driven gear is driven to rotate by the driving gear, and then the power is transmitted to the drive shaft through the transmission component, and then to the second shaving unit through the gear set. This achieves power transmission while changing the direction of rotation, so that the rotation axis of the second shaving unit is perpendicular to the rotation axis of the driven gear, which is beneficial for the second shaving unit to conform to the facial contours for shaving.

[0029] As a further improvement of one embodiment of this application, the transmission component is a bevel gear, which is coaxially sleeved on the outer periphery of the transmission shaft. The driven gear includes a first meshing part and a second meshing part that rotate synchronously. The first meshing part meshes with the driving gear, and the second meshing part meshes with the bevel gear.

[0030] This configuration, through the structural design of the driven gear and transmission components, enables the synchronous rotation of the first and second meshing parts. Furthermore, by using different gears that mesh with the first and second meshing parts, it achieves effective power transmission and rotation direction conversion, making the rotation axis of the transmission shaft perpendicular to the rotation axis of the driven gear.

[0031] As a further improvement of one embodiment of this application, the second transmission mechanism further includes a bracket, and the second shaving unit includes a rotating inner blade and a rotating shaft. The rotating inner blade is disposed on the outer periphery of the rotating shaft and rotates synchronously with the rotating shaft. The rotating shaft and the transmission shaft are both connected to the bracket and are spaced apart from each other. The rotation axis of the rotating shaft is parallel to the rotation axis of the transmission shaft.

[0032] This configuration ensures that the rotating inner blade is parallel to the rotation axis of the drive shaft, and allows for the reasonable arrangement of the positions of the components of the second shaving unit and the second transmission mechanism based on the overall structure and space of the shaving head assembly.

[0033] As a further improvement of one embodiment of this application, the gear set includes a plurality of gears that are sequentially meshed and connected. The gear located at one end of the gear set is sleeved on the drive shaft, and the gear located at the other end of the gear set is sleeved on the rotating shaft of the second shaving unit.

[0034] This configuration allows the rotational power of the drive shaft to be smoothly transmitted to the second shaving unit, ensuring that the rotation axes of the two units are parallel. Furthermore, it allows for the rational arrangement of the number and positional relationship of gears in the gear set based on the overall structure and space of the shaving head assembly, thereby achieving efficient cooperation between the second and first shaving units.

[0035] To achieve at least one of the above-mentioned objectives, one embodiment of this application also provides a razor, including the blade assembly as described above.

[0036] The shaver provided in this application has a blade head assembly that uses a driven gear and a driving gear to connect the driven gear and two transmission mechanisms to the driven gear. This allows the rotational power of the driving gear to be converted into driving force for the movement of two shaving units via the driven gear and transmission mechanisms. This not only achieves a combination of reciprocating and rotary shaving functions, enabling efficient handling of hair of different lengths and types, but also allows a single power source to drive two shaving units with different motion modes. This effectively solves the problem of existing composite shavers requiring multiple power sources, reduces noise and vibration, and improves the user's shaving experience. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural schematic diagram of a razor according to an embodiment of this application;

[0038] Figure 2 This is a partial structural schematic diagram of a razor according to an embodiment of this application;

[0039] Figure 3 yes Figure 2 Top view;

[0040] Figure 4This is a three-dimensional structural schematic diagram of a cutter head unit according to an embodiment of this application;

[0041] Figure 5 yes Figure 4 An explosion diagram;

[0042] Figure 6 This is a partial structural schematic diagram of a transmission mechanism according to an embodiment of this application;

[0043] Figure 7 yes Figure 6 An explosion diagram;

[0044] Figure 8 This is a schematic diagram of the driven gear and eccentric component according to an embodiment of this application.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1000. Shaver; 100. Shaver head assembly; 1. Drive gear; 2. Driven gear; 21. First meshing tooth section; 22. Second meshing tooth section; 3. Shaver head unit; 4. Transmission mechanism; 41. First transmission mechanism; 411. Eccentric component; 4111. Shaft hole; 412. Oscillating component; 4121. Offset hole; 4122. Linkage part; 4123. Fitting hole; 42. Second transmission mechanism; 421. Transmission component; 422. Transmission shaft; 423. Gear set; 4231. Gear; 42 4. Bracket; 4241. Support plate; 4242. Pin; 5. Shaver unit; 51. First shaving unit; 511. Outer blade holder; 512. First elastic element; 513. Outer blade; 514. Inner blade; 515. Second elastic element; 52. Second shaving unit; 521. Rotating inner blade; 522. Rotating shaft; 523. Blade foil; 6. Blade head holder; 61. Protrusion; 62. Pivot; 7. Cover; 71. Opening; 72. Smoothing area; 200. Grip part; 300. Power source. Detailed Implementation

[0047] The present application will now be described in detail with reference to the specific embodiments shown in the accompanying drawings.

[0048] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts are enlarged relative to other structures or parts; therefore, they are only used to illustrate the basic structure of the subject matter of this application.

[0049] It should be understood that although the terms "first," "second," etc., may be used in this document to describe various elements, structures, or parameters, the objects being described should not be limited by these terms. These terms are only used to distinguish these objects from one another.

[0050] See Figure 1, this embodiment provides a razor 1000, which is mainly used to shave beards or hairs on the face, neck and other parts for personal care. Specifically, in this embodiment, the razor 1000 is an electric razor.

[0051] As a trimming tool for beards and hairs, an electric razor drives the cutter head to move through a power source 300 to cut and clean the beards and hairs. Compared with traditional manual razors, it is not only efficient and safe, but also has a better shaving effect and is more convenient to use.

[0052] Refer to Figures 1 to 2 , the razor 1000 includes a cutter head assembly 100, a holding part 200 and a power source 300. The cutter head assembly 100 and the holding part 200 are assembled to form the razor 1000. The power source 300 is arranged in the holding part 200. The power source 300 can specifically adopt a motor or a battery. The power source 300 drives the shaving unit 5 in the cutter head assembly 100 to move reciprocally and / or rotate to achieve shaving.

[0053] Refer to Figures 1 to 3 As shown, the cutter head assembly 100 includes a driving gear 1, a driven gear 2 and a cutter head unit 3.

[0054] The driving gear 1 is driven by the power source 300 to rotate. The driven gear 2 is meshed with the driving gear 1, so that the driving force of the power source 300 can be converted into the rotational power of the driven gear 2.

[0055] The power source 300 preferably adopts a motor, especially a rotor motor. The rotational power generated by the rotor motor drives the output shaft to rotate, thereby driving the driving gear 1 to rotate.

[0056] Refer to Figures 2 to 6 As shown, the cutter head unit 3 includes a transmission mechanism 4 and a shaving unit 5. The transmission mechanism 4 is connected to the driven gear 2 and the shaving unit 5 to transmit the rotational power of the driven gear 2 to the shaving unit 5 to drive the shaving unit 5 to move.

[0057] The transmission mechanism 4 includes a first transmission mechanism 41 and a second transmission mechanism 42. The shaving unit 5 includes a first shaving unit 51 and a second shaving unit 52.

[0058] The first transmission mechanism 41 is arranged to convert the rotational power of the driven gear 2 into the driving force for the first shaving unit 51 to move reciprocally. The second transmission mechanism 42 is arranged to convert the rotational power of the driven gear 2 into the driving force for the second shaving unit 52 to rotate. Through the reciprocal movement of the first shaving unit 51, long beards and curly hairs can be effectively cut off. Through the rotational movement of the second shaving unit 52, short hairs can be rotationally cut.

[0059] Thus, in the cutter head assembly 100 of this embodiment, through the cooperation of the driven gear 2 and the driving gear 1, and the connection of both transmission mechanisms 4 to the driven gear 2, the rotational power of the driving gear 1 is respectively converted into the driving force for the movement of the two shaving units via the driven gear 2 and the transmission mechanisms 4. Not only does it achieve the combined function of reciprocating shaving and rotary shaving, enabling efficient processing of different lengths and types of hair, but it also realizes the driving of two shaving units 5 with different movement modes by a single power source 300, effectively solving the problem of multiple power sources required in the prior art for compound razors, reducing noise and vibration, and enhancing the user's shaving experience.

[0060] As shown Figures 1 to 3 In this embodiment, multiple driven gears 2 are provided, and the multiple driven gears 2 are arranged at intervals along the circumferential direction of the driving gear 1. Multiple groups of cutter head units 3 are provided corresponding to the driven gears 2 one by one.

[0061] Thus, the multiple driven gears 2 are respectively meshed and connected to the driving gear 1, achieving the integrated arrangement of multiple cutter head units 3. Each driven gear 2 can synchronously receive the rotational power of the driving gear 1 and perform shaving actions through the corresponding cutter head unit 3, that is, it realizes the synchronous operation of multiple cutter head units 3 driven by a single power source 300, greatly increasing the coverage area of the cutter head assembly 100, thereby improving the shaving efficiency; the multiple driven gears 2 are distributed around the driving gear 1, not only avoiding mutual interference between the driven gears 2 and the cutter head units 3, but also this circumferential distribution design has a compact structure layout, controlling the head size of the razor 1000 while expanding the shaving area, improving the overall working efficiency of the cutter head assembly 100, and at the same time balancing the vibration of the razor 1000 during operation, enhancing stability.

[0062] In this embodiment, three groups of driven gears 2 and cutter head units 3 are provided corresponding to each other one by one, with a compact structure layout and a reasonable layout, controlling the overall size of the cutter head assembly 100 while ensuring the cutting area. Of course, the specific number of the driven gears 2 and the cutter head units 3 can also be set comprehensively according to actual needs and the volume of the razor 1000, such as two, four, etc.

[0063] Preferably, the multiple driven gears 2 are arranged at equal intervals along the circumferential direction of the driving gear 1, so that the multiple cutter head units 3 can be evenly distributed along the circumferential direction of the driving gear 1, enhancing the uniformity of the shaving area distribution while expanding the shaving area, improving the shaving efficiency, balancing the vibration of each shaving unit 5 during the operation of the razor 1000, and further enhancing the stability of the cutter head assembly 100.

[0064] The first transmission mechanism 41 and the second transmission mechanism 42 are respectively arranged on both sides of the driven gear 2, so that the space on both sides of the driven gear 2 can be fully utilized to optimize the overall layout structure.

[0065] On the one hand, it makes the structure of the cutter head assembly 100 more compact, reducing the overall structural dimensions of the cutter head assembly 100 and the head of the shaver 1000; on the other hand, it is beneficial for the driven gear 2 to drive the first transmission mechanism 41 and the second transmission mechanism 42 simultaneously, reducing the mutual interference between the first transmission mechanism 41 and the second transmission mechanism 42, and improving the running stability.

[0066] When the power source 300 drives the driving gear 1 to rotate, multiple driven gears 2 rotate synchronously. Each driven gear 2 drives the first shaving unit 51 to perform a reciprocating motion and drives the second shaving unit 52 to perform a rotational motion through the first transmission mechanism 41 and the second transmission mechanism 42 on both sides thereof respectively.

[0067] Specifically, the first transmission mechanism 41 and the second transmission mechanism 42 are respectively located on the axial two sides of the driven gear 2.

[0068] Refer Figures 4 to 8 As shown, the first transmission mechanism 41 includes an eccentric member 411 and a swing member 412.

[0069] The eccentric member 411 is fixedly connected to the driven gear 2, and their rotation centerlines coincide. That is to say, the eccentric member 411 and the driven gear 2 rotate synchronously and around the same axis.

[0070] The swing member 412 is connected between the eccentric member 411 and the first shaving unit 51, and the swing member 412 has an offset hole 4121 and a linkage portion 4122. The offset hole 4121 is adapted to the eccentric member 411, and the eccentric member 411 is arranged in the offset hole 4121 in a matching manner. By the rotation of the eccentric member 411 in the offset hole 4121, the rotation of the driven gear 2 can be converted into the swing of the swing member 412. The linkage portion 4122 cooperates with the first shaving unit 51, so as to drive the first shaving unit 51 when the swing member 412 swings.

[0071] When the driven gear 2 rotates, the eccentric member 411 fixedly connected thereto rotates synchronously. Through the cooperation between the eccentric member 411 and the offset hole 4121 on the swing member 412, the rotation of the eccentric member 411 can make the swing member 412 swing, so that the linkage portion 4122 drives the first shaving unit 51 to swing reciprocally. Thus, the rotational power of the driven gear 2 is converted into the driving force for the first shaving unit 51 to move reciprocally.

[0072] Preferably, the eccentric member 411 and the driven gear 2 are integrally provided, so that the processing difficulty can be reduced and the rotation synchronism and coaxiality of the two can be ensured.

[0073] As shown Figures 6 to 7 in FIG. 0, the cutter head unit 3 further includes a cutter head seat 6. One end of the swing member 412 away from the linkage portion 4122 is rotatably connected to the cutter head seat 6, and the eccentric member 411 is disposed between the driven gear 2 and the cutter head seat 6.

[0074] With this arrangement, the swing member 412 can rotate about one end connected to the cutter head seat 6 to achieve swinging, and the cutter head seat 6 can provide a stable support for the swing member 412. Moreover, the space between the cutter head seat 6 and the driven gear 2 provides sufficient space for the movement of the eccentric member 411 and the swing member 412, and also avoids interference from other components to the movement of the eccentric member 411 and the swing member 412.

[0075] As shown Figure 7 in FIG. 1, a protrusion 61 is convexly provided on one side of the cutter head seat 6 facing the first shaving unit 51. One end of the swing member 412 away from the linkage portion 4122 has a mating hole 4123 adapted to the protrusion 61, and the protrusion 61 is mated in the mating hole 4123, so that the swing member 412 can rotate about the protrusion 61 to achieve swinging.

[0076] As shown Figure 7 in FIG. 2, a pivot 62 is also convexly provided on one side of the cutter head seat 6 facing the first shaving unit 51. The eccentric member 411 has a shaft hole 4111 adapted to the pivot 62, and the pivot 62 is mated in the shaft hole 4111, so that the eccentric member 411 and the driven gear 2 can rotate about the pivot 62.

[0077] Preferably, the shaft hole 4111 extends from the eccentric member 411 to the driven gear 2. In other words, both the eccentric member 411 and the driven gear 2 are provided with shaft holes 4111, and the shaft holes 4111 of the two are coaxially arranged and interconnected. Thus, the pivot 62 can pass through the eccentric member 411 and be mated with the driven gear 2 to increase the mating length between the pivot 62 and the driven gear 2 and the eccentric member 411, improve the mating strength, and enhance the structural stability of the cutter head assembly 100.

[0078] As shown Figures 4 to 5 in FIG. 3, the first shaving unit 51 includes an outer cutter holder 511, a first elastic member 512, an outer cutter blade 513 and an inner cutter blade 514. The swing member 412 is connected to the inner cutter blade 514. The outer cutter holder 511 is connected to the cutter head seat 6. The outer cutter blade 513 is fixedly connected to the outer cutter holder 511, and a space for the inner cutter blade 514 to reciprocate is formed therebetween. The space formed between the outer cutter blade 513 and the outer cutter holder 511 not only defines the reciprocating movement track of the inner cutter blade 514, but also plays a role in protecting the inner cutter blade 514. The inner cutter blade 514 can reciprocate relative to the outer cutter blade 513 along with the swing member 412, so as to cut long beards and curly hairs.

[0079] The first elastic member 512 is connected between the outer tool rest 511 and the inner blade 514. The first elastic member 512 supports the inner blade 514 to keep the inner blade 514 in contact with the outer blade 513. Through the elastic support of the inner blade 514 by the first elastic member 512, the inner blade 514 can be kept in close contact with the outer blade 513, thus ensuring efficient cutting of hair.

[0080] Of course, the first elastic member 512 is always in a compressed state, that is to say, the first elastic member 512 always has a compressive deformation amount to ensure that an elastic supporting force is always provided to the inner blade 514.

[0081] Refer Figure 4 As shown, the first shaving unit 51 further includes a second elastic member 515. Two ends of the second elastic member 515 are respectively connected to the outer tool rest 511 and the tool head seat 6. That is, one end of the second elastic member 515 is connected to the outer tool rest 511, and the other end is connected to the tool head seat 6.

[0082] In this way, the second elastic member 515 provides a flexible support for the outer tool rest 511. During the use of the razor 1000, the outer tool rest 511 can compress the second elastic member 515 when fitting the face, so that the outer tool rest 511 approaches the tool head seat 6. This can not only increase the contact area and the fitting degree between the tool head assembly 100 and the face, enhance the adaptability of the tool head assembly 100 to the facial contour, improve the shaving comfort, but also buffer the impact force during the shaving process, reduce the irritation to the skin, and enhance the user experience. When the razor 1000 is not working, the second elastic member 515 drives the outer tool rest 511 to reset under the action of its own elastic restoring force.

[0083] Refer Figure 1 As shown, the tool head assembly 100 further includes a housing 7. The housing 7 is fixedly connected to the tool head seat 6. The outer tool rest 511 and the housing 7 are slidably engaged along the deformation direction of the second elastic member 515.

[0084] In this way, the activity ability of the outer tool rest 511 relative to the housing 7 along the deformation direction of the second elastic member 515 is enhanced. During the use of the razor 1000, the flexibility of the tool head to adapt to the facial contour is further improved, and the shaving comfort is enhanced.

[0085] Specifically, the outer tool rest 511 and the housing 7 can adopt a cooperation structure of a slider and a slide rail to achieve the slidable engagement. One of the slider and the slide rail is arranged on the outer tool rest 511, and the other is arranged on the housing 7. The extending direction of the slide rail is parallel to the deformation direction of the second elastic member 515.

[0086] Of course, the outer tool rest 511 and the housing 7 can also adopt other existing slidable engagement structures to achieve the slidable engagement, which will not be elaborated here.

[0087] Among them, an opening 71 is provided at one end of the housing 7 away from the cutter head seat 6, and a part of each of the first shaving unit 51 and the second shaving unit 52 is exposed in the opening 71. Thus, when the razor 1000 is working, the end of the housing 7 away from the cutter head seat 6 abuts against the skin, and the first shaving unit 51 and the second shaving unit 52 perform shaving; when the outer cutter holder 511 moves relative to the housing 7 along the deformation direction of the second elastic member 515, a part of the outer cutter holder 511 is always exposed in the opening 71 to ensure the shaving effect.

[0088] In addition, a smooth area 72 is provided on the surface of the housing 7 on the side away from the cutter head seat 6, so that the razor 1000 can move more smoothly along the skin, improving the comfort of the user.

[0089] In this embodiment, smooth balls are provided in the smooth area 72 to facilitate improving the smoothness of the movement of the razor 1000 along the skin.

[0090] In other embodiments, the smooth area 72 can also be made of a material with a smaller friction coefficient to improve the smoothness.

[0091] Refer Figures 4 to 5 As shown, the second transmission mechanism 42 includes a transmission member 421, a transmission shaft 422, and a gear set 423. The transmission member 421 is configured to convert the rotational power of the driven gear 2 into the rotational power of the transmission shaft 422. The axis of the transmission shaft 422 is perpendicular to the rotational center line of the driven gear 2. The gear set 423 is configured to transmit the rotational power of the transmission shaft 422 to the second shaving unit 52 and convert it into the driving force for the rotational movement of the second shaving unit 52.

[0092] Thus, the driving gear 1 drives the driven gear 2 to rotate, and then it is transmitted to the transmission shaft 422 through the transmission member 421, and then transmitted to the second shaving unit 52 through the gear set 423. While achieving power transmission, the rotation direction is changed, so that the rotation axis of the second shaving unit 52 is perpendicular to the rotation axis of the driven gear 2, which is beneficial for the second shaving unit 52 to conform to the facial contour for shaving.

[0093] Among them, the first shaving unit 51 and the second shaving unit 52 are arranged side by side at intervals. The rotation axis of the second shaving unit 52 is parallel to the direction of the reciprocating movement of the first shaving unit 51, that is, the rotation axis of the second shaving unit 52 is parallel to the length direction of the first shaving unit 51. Thus, reciprocating shaving and rotational shaving can be performed simultaneously, achieving efficient processing of different lengths and types of hair, and the layout is compact and reasonable, which is beneficial to reducing the overall size of the cutter head assembly 100.

[0094] Refer Figures 4 to 7As shown, in this embodiment, the transmission member 421 is a bevel gear, which is coaxially sleeved on the outer periphery of the transmission shaft 422. The driven gear 2 includes a first toothed portion 21 and a second toothed portion 22 that rotate synchronously. The first toothed portion 21 meshes with the driving gear 1, and the second toothed portion 22 meshes with the bevel gear.

[0095] Through the structural design of the driven gear 2 and the transmission member 421, the synchronous rotation of the first toothed portion 21 and the second toothed portion 22 is achieved. Furthermore, due to the difference in the mating gears 4231 of the first toothed portion 21 and the second toothed portion 22, the effective transmission of power and the conversion of the rotation direction are realized, making the rotation axis of the transmission shaft 422 perpendicular to the rotation axis of the driven gear 2.

[0096] Among them, the driving gear 1 is a spur gear, the first toothed portion 21 is also a spur gear, and the second toothed portion 22 is also a bevel gear.

[0097] Through the meshing of the first toothed portion 21 and the driving gear 1, the rotational power of the driving gear 1 is transmitted to the driven gear 2. Through the meshing of the second toothed portion 22 and the bevel gear, the rotational power of the driven gear 2 is transmitted to the bevel gear. Since the rotation axis of the bevel gear is perpendicular to the driven gear 2, the rotation axis of the transmission shaft 422 coaxially arranged with the bevel gear is perpendicular to the rotation axis of the driving gear 1, realizing the change of the rotation direction.

[0098] The first toothed portion 21 and the second toothed portion 22 are integrally provided, thus ensuring the coaxiality and synchronism of their rotations.

[0099] Among them, the second toothed portion 22 is located on the side of the first toothed portion 21背离偏心件411 (it should be noted that "背离偏心件411" needs to be adjusted according to the actual correct expression in Chinese, assuming it is "away from the eccentric member 411" here). In this way, the space can be reasonably utilized, facilitating the mating of the second toothed portion 22 with the second transmission mechanism 42 and avoiding interference between the second transmission mechanism 42 and the first transmission mechanism 41.

[0100] Refer to Figures 6 to 7 As shown, the second transmission mechanism 42 further includes a bracket 424, and the bracket 424 is fixedly connected to the cutter head seat 6. The transmission shaft transmission shaft 422, the gear set 423, and the second shaving unit 52 are all connected to the bracket 424. In this way, the movement of the second shaving unit 52 and the second transmission mechanism 42 can be made stable.

[0101] In this embodiment, the bracket 424 includes a pair of spaced-apart support plates 4241. The axial two ends of the transmission shaft 422 are respectively connected to the pair of support plates 4241.

[0102] Refer to Figures 4 to 5As shown, the second shaving unit 52 includes a rotating inner blade 521 and a rotating shaft 522. The rotating inner blade 521 is disposed on the outer periphery of the rotating shaft 522 and rotates synchronously with the rotating shaft 522. The rotating shaft 522 and the transmission shaft 422 are both connected to the bracket 424 and are spaced apart. The rotation axis of the rotating shaft 522 is parallel to the rotation axis of the transmission shaft 422.

[0103] With such an arrangement, the rotation axis of the rotating inner blade 521 is parallel to that of the transmission shaft 422, and the positions of components such as the second shaving unit 52 and the second transmission mechanism 42 can be reasonably arranged according to the overall structure and space of the cutter head assembly 100.

[0104] Axial ends of the rotating shaft 522 are respectively connected to a pair of parallel support plates 4241.

[0105] The second shaving unit 52 further includes a cutter net 523. The cutter net 523 is located at least partially on the outer periphery of the rotating inner blade 521. The rotating inner blade 521 is in contact with the cutter net 523, so that short hairs can be cut by the relative rotation of the rotating inner blade 521 with respect to the cutter net 523 and their cooperation.

[0106] The cutter net 523 is fixedly connected to the bracket 424. In this embodiment, the cutter net 523 is arched, and both ends of the cutter net 523 are respectively connected to a pair of support plates 4241.

[0107] Refer Figures 4 to 5 As shown, the gear set 423 includes a plurality of gears 4231. The plurality of gears 4231 are sequentially meshed and connected. A gear 4231a located at one end of the gear set 423 is sleeved on the transmission shaft 422, and a gear 4231b located at the other end of the gear set 423 is sleeved on the rotating shaft 522 of the second shaving unit 52.

[0108] In this way, the rotational power of the transmission shaft 422 can be smoothly transmitted to the second shaving unit 52, and their rotation axes are parallel. The number and positional relationship of the gears in the gear set 423 can also be reasonably set according to the overall structure and space of the cutter head assembly 100, so as to achieve efficient cooperation between the second shaving unit 52 and the first shaving unit 51.

[0109] In this embodiment, the gear set 423 is located on one side of one support plate 4241 away from the other support plate 4241. The transmission shaft 422 and the rotating shaft 522 respectively pass through the support plate 4241 and are connected to the gears 4231 located at both ends of the gear set 423.

[0110] A pin shaft 4242 is further provided on the support plate 4241. The remaining gears in the gear set 423 except the gears at both ends are respectively sleeved on the pin shaft 4242.

[0111] In this embodiment, the multiple gears 4231 are arranged linearly to improve power transmission efficiency. In other embodiments, the number and arrangement of gears in the gear set 423 can also be set according to the distance between the drive shaft 422 and the rotating shaft 522, such as a non-linear arrangement.

[0112] In summary, the blade assembly 100 and the shaver 1000 having it in this application, through the cooperation of the driven gear 2 and the driving gear 1, and the connection of both transmission mechanisms 4 to the driven gear 2, convert the rotational power of the driving gear 1 into the driving force for the movement of the two shaving units 5 via the driven gear 2 and the transmission mechanism 4. This not only realizes the combined function of reciprocating shaving and rotary shaving, achieving efficient processing of hair of different lengths and types, but also realizes that a single power source 300 drives two shaving units 5 with different movement modes. This effectively solves the problem that the composite shaver 1000 in the prior art requires multiple power sources 300, reduces noise and vibration, and improves the user's shaving experience.

[0113] The structure, features and effects of this application have been described in detail above with reference to the embodiments shown in the accompanying drawings. The above description is only a preferred embodiment of this application, but this application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of this application, or modifications to equivalent embodiments with equivalent changes, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this application.

Claims

1. A tool bit assembly comprising: include: A drive gear, which is driven by a power source; Driven gear, which meshes with driving gear; The blade head unit includes a transmission mechanism and a shaving unit, wherein the transmission mechanism is connected to the driven gear and the shaving unit; The transmission mechanism includes a first transmission mechanism and a second transmission mechanism, and the shaving unit includes a first shaving unit and a second shaving unit. The first transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the reciprocating movement of the first shaving unit, and the second transmission mechanism is configured to convert the rotational power of the driven gear into a driving force for the rotational movement of the second shaving unit.

2. The tool bit assembly of claim 1, wherein, Multiple driven gears are provided, and the multiple driven gears are arranged at intervals along the circumference of the driving gear. Multiple sets of cutter head units are provided in one-to-one correspondence with the driven gears.

3. The knife head assembly of claim 1, wherein, The first transmission mechanism and the second transmission mechanism are respectively disposed on both sides of the driven gear.

4. The tool bit assembly of claim 1, wherein, The first transmission mechanism includes an eccentric component and a swinging component; The eccentric component is fixedly connected to the driven gear, and their rotation center lines coincide. The oscillating member is connected between the eccentric member and the first shaving unit, and has an offset hole adapted to the eccentric member and a linkage part that cooperates with the first shaving unit. The eccentric member is fitted in the offset hole and converts the rotation of the driven gear into the oscillation of the oscillating member.

5. The knife head assembly of claim 4, wherein, The cutter head unit also includes a cutter head seat, and the end of the swing member away from the linkage part is rotatably connected to the cutter head seat. The eccentric member is disposed between the driven gear and the cutter head seat.

6. The knife head assembly of claim 5, wherein, The first shaving unit includes an outer blade holder, a first elastic element, an outer blade, and an inner blade. The swinging element is connected to the inner blade. The outer blade holder is connected to the blade head seat. The outer blade is fixedly connected to the outer blade holder, and a space is formed between the two for the inner blade to reciprocate. The first elastic element is connected between the outer blade holder and the inner blade, and the first elastic element supports the inner blade so that the inner blade remains against the outer blade.

7. The knife head assembly of claim 6, wherein, The first shaving unit also includes a second elastic element, the two ends of which are respectively connected to the outer blade holder and the blade head seat.

8. The cutter head assembly according to claim 7, characterized in that, It also includes a cover, which is fixedly connected to the cutter head seat, and the outer cutter holder is slidably engaged with the cover along the deformation direction of the second elastic member.

9. The cutter head assembly according to claim 1, characterized in that, The second transmission mechanism includes a transmission component, a transmission shaft, and a gear set. The transmission component is configured to convert the rotational power of the driven gear into the rotational power of the transmission shaft. The axis of the transmission shaft is perpendicular to the rotational center line of the driven gear. The gear set is configured to transmit the rotational power of the transmission shaft to the second shaving unit and convert it into the driving force for the rotational movement of the second shaving unit.

10. The cutter head assembly according to claim 9, characterized in that, The transmission component is a bevel gear, which is coaxially sleeved on the outer circumference of the transmission shaft. The driven gear includes a first meshing part and a second meshing part that rotate synchronously. The first meshing part meshes with the driving gear, and the second meshing part meshes with the bevel gear.

11. The cutter head assembly according to claim 9, characterized in that, The second transmission mechanism further includes a bracket, and the second shaving unit includes a rotating inner blade and a rotating shaft. The rotating inner blade is disposed on the outer periphery of the rotating shaft and rotates synchronously with the rotating shaft. The rotating shaft and the transmission shaft are both connected to the bracket and are spaced apart from each other. The rotation axis of the rotating shaft is parallel to the rotation axis of the transmission shaft.

12. The cutter head assembly according to claim 9, characterized in that, The gear set includes multiple gears that are sequentially meshed and connected. The gear located at one end of the gear set is sleeved on the drive shaft, and the gear located at the other end of the gear set is sleeved on the rotating shaft of the second shaving unit.

13. A razor, characterized in that, Includes the cutter head assembly as described in any one of claims 1 to 12.

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