CN216030962U

CN216030962U - Compound pivoted tool bit subassembly and electric shaver

Info

Publication number: CN216030962U
Application number: CN202122037088.2U
Authority: CN
Inventors: 王瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-03-15
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to a composite rotary cutter head component and an electric shaver, comprising: the knife net component comprises a first knife net and a second knife net, and the second knife net is arranged on the inner side of the first knife net; the driven assembly is connected with the cutter mesh assembly and is used for rotating the cutter mesh assembly; and one end of the transmission assembly is rotatably connected with the driven assembly, the other end of the transmission assembly is used for being connected with an external driving device, and the transmission assembly is used for driving the driven assembly and enabling the first knife net and the second knife net to rotate forwards or reversely. The combined rotating cutter head component provided by the utility model can actively capture beards, has high shaving efficiency, is suitable for the use requirements of different people, and has the advantages of good structure reliability, stable quality and long service life of products.

Description

Compound pivoted tool bit subassembly and electric shaver

Technical Field

The utility model relates to the technical field of shavers, in particular to a cutter head assembly capable of rotating compositely and an electric shaver.

Background

An electric shaver is an electric appliance which utilizes electric power to drive blades to shave beard and temples. The electric shaver consists of a stainless steel mesh enclosure, an inner blade, a micro motor and a shell. The net cover is a fixed outer blade, a plurality of holes are formed in the net cover, beards can extend into the holes, the inner blade is driven to move through the electric energy drive of the micro motor, and the beards extending into the holes are cut off by utilizing the shearing principle.

The traditional electric shaver usually needs a user to contact the mesh with the skin, then the beards are cut off by the inner blade, the beards enter the meshes and are pushed by hands, the shaver is lack of the capability of actively capturing the beards, the beards enter the mesh and are passive and low in efficiency in the face of the condition of beards and hairs of different users, and the capability of capturing the beards is insufficient, so that the efficiency and the effect in the shaving process are not good enough.

SUMMERY OF THE UTILITY MODEL

Therefore, the compound rotating tool bit assembly and the electric shaver are needed to solve the problem of low beard capturing efficiency of the electric shaver.

A compound rotary cutter head assembly comprising: the knife net component comprises a first knife net and a second knife net, and the second knife net is arranged on the inner side of the first knife net; the driven assembly is connected with the cutter mesh assembly and is used for rotating the cutter mesh assembly; and one end of the transmission assembly is rotatably connected with the driven assembly, the other end of the transmission assembly is used for being connected with an external driving device, and the transmission assembly is used for driving the driven assembly and enabling the first knife net and the second knife net to rotate forwards or reversely.

The utility model provides a compound pivoted tool bit subassembly, including cutter mesh subassembly, driven subassembly and transmission assembly, wherein transmission assembly one end and driven subassembly rotatable coupling, the other end is connected with external drive device. Under the rotary driving of the external driving device, the first component of the transmission component is driven to rotate around the shaft, the second component connected with the first component rotates in a periodic half-cycle in the opposite direction under the driving of the first component, and at the moment, the second component of the transmission component transmits driving force to the driven component, so that the driven component rotates in the periodic half-cycle in the opposite direction. At the moment, the driven assembly is connected with the cutter mesh assembly, so that the first cutter mesh and the second cutter mesh of the cutter mesh assembly are driven to periodically rotate in half cycles in opposite directions, and finally the forward and reverse rotation of the first cutter mesh and the second cutter mesh is realized.

Optionally, under the action of the transmission assembly and the driven assembly, the first cutter mesh and the second cutter mesh can continuously rotate in the forward direction, and the first cutter mesh and the second cutter mesh can also continuously rotate in the reverse direction.

The composite rotating cutter head assembly in one implementation further comprises an eccentric wheel, the transmission assembly comprises a first connecting rod, a second connecting rod and a gear assembly, the first connecting rod comprises a first connecting rod body, a first connecting part and a second connecting part, the first connecting part and the second connecting part are oppositely arranged on the first connecting rod body, the first connecting part is connected with the eccentric wheel, and the first connecting part and the eccentric wheel can rotate relatively; the second connecting rod comprises a second connecting rod body, a third connecting part and a fourth connecting part, the fourth connecting part is connected with the second connecting part, the third connecting part is connected with the gear assembly, and the gear assembly is connected with the driven assembly.

Foretell compound pivoted tool bit subassembly, regard as the action wheel through setting up the eccentric wheel, be connected through the eccentric orfice on the eccentric wheel and the first connecting portion on the first connecting rod, thereby drive first connecting rod forward and reverse rotation, the second connecting rod realizes forward and reverse rotation through the mode that fourth connecting portion and second connecting portion are connected, and the gear assembly that drives the third connecting portion with the second connecting rod and be connected rotates, the gear assembly is connected with driven subassembly, thereby the driven subassembly of drive makes forward and reverse rotation, finally make driven subassembly drive rather than the cutting net subassembly of being connected carry out forward and reverse rotation. The composite rotating cutter head assembly with the design is simple in structure and good in reliability. In addition, the transmission assembly carries out forward and reverse pivoted transmission through the form that sets up including first connecting rod and second connecting rod, compares with single connecting rod, can effectively reduce external drive device's rotation torsion requirement, and can alleviate the pressure of driven subassembly to the connecting rod to it is more smooth and easy to make transmission assembly's operation, can also effectively prolong the life of compound pivoted tool bit subassembly.

Optionally, the third connecting portion are the positioning convex column, a rack is arranged on the outer side wall of the positioning convex column, a tooth portion matched with the rack on the outer side wall of the positioning convex column is arranged on the gear assembly, and the second connecting rod is meshed with the tooth portion of the gear assembly through the rack on the outer side wall of the third connecting portion, so that the gear assembly can rotate in the forward direction and the reverse direction.

Optionally, a tooth part is arranged on the driven assembly, and the driven assembly is in meshed connection with the gear assembly, so that the gear assembly drives the driven assembly to rotate in the forward and reverse directions.

In one embodiment, the eccentric wheel is provided with an eccentric hole, the first connecting portion is a first positioning convex column, and the first positioning convex column is connected with the eccentric hole in a clamping manner.

In one embodiment, one of the second connecting portion and the fourth connecting portion is a positioning through hole, the other one is a second positioning boss matched with the positioning through hole, and the first connecting rod and the second connecting rod are connected with the second positioning boss in a clamping manner through the positioning through hole.

In the composite rotating cutter head assembly, the first connecting part is a first positioning convex column and is connected with the eccentric hole of the eccentric wheel in a clamping manner through the first positioning convex column. The first connecting rod and the second connecting rod are connected in a clamping mode through the positioning through hole and the second positioning convex column. The structure enables the first connecting rod and the eccentric wheel and the first connecting rod and the second connecting rod to be mounted more conveniently and rapidly, and the assembly efficiency is improved.

In one embodiment, the driven assembly comprises a first driven member, a second driven member and a limiting shell, the limiting shell comprises a first positioning structure and a second positioning structure, the first positioning structure is connected with the second positioning structure, the second driven member is respectively connected with the first driven member and the first positioning structure, a tooth part is arranged on the first driven member, and the limiting shell is connected with the first knife net of the knife net assembly; the gear assembly comprises a gear set, the gear set comprises a driving gear and two driven gears, the driving gear is connected with the third connecting portion, the driving gear and the driven gears can be respectively meshed with the teeth of the first driven member to be connected, the third connecting portion drives the driving gear to rotate relative to the first driven member, and the driven gear rotates relative to the first driven member.

Foretell compound pivoted tool bit subassembly, driven subassembly can further reduce the drive pressure of transmission subassembly to driven subassembly through setting up to including first follower, second follower and spacing casing to extension transmission subassembly's life. According to the composite rotating cutter head component, the gear component is arranged to serve as the transmission component for driving the cutter net to rotate forward and backward, so that the stressed area of forward and backward rotation of the cutter net can be enlarged on the premise of not obviously enhancing driving power, and a technical basis is provided for enlarging the shaving face of the forward and backward rotation shaver. In addition, the planetary gear assembly can enable the forward and reverse rotation of the shaver net to be more stable, so that the smoothness of the shaver net is improved when the shaver net rotates forward and reverse.

In the composite rotating cutter head assembly, the first driven part is provided with the tooth part, the gear assembly comprises the driving gear and the two driven gears, and the driving gear and the two driven gears are respectively meshed with the tooth part on the first driven part to enable the first driven part to be a planet gear wheel. The driving gear is connected with the third connecting portion of the second connecting rod, the second connecting rod drives the driving gear to rotate under the driving of the eccentric wheel, and the driving gear further drives the first driven piece to rotate and drives the driven gear on the first driven piece to rotate relatively. The driving gear and the two driven gears are designed in a triangular plane shape on the upper layer of the first driven member, and the two driven gears limit the first driven member, so that the first driven member does not generate position deviation in the rotating process.

In the above-described compound rotary cutter head assembly, the gear assembly is designed as a planetary gear set including a driving gear and at least one driven gear. The gear set is designed to be a planetary gear set to realize transmission, has small transmission volume, large bearing capacity and stable work, and can better support the whole body of the cutter head assembly with compound rotation, thereby improving the stability of the cutter head assembly with compound rotation.

In one embodiment, the gear assembly further includes a gear shaft assembly, the gear shaft assembly includes a first gear shaft and a second gear shaft, the third connecting portion is provided with a plugging hole, one end of the first gear shaft is in interference fit with the shaft hole of the driving gear, the other end of the first gear shaft is in interference fit with the plugging hole, the second gear shaft penetrates through the central hole of the driven gear, and the driven gear rotates around the second gear shaft.

The composite rotating cutter head component can enable the forward and reverse rotation of the cutter net to be more stable, so that the smoothness of the cutter net is improved when the shaver net rotates forward and reverse.

In one embodiment, the first driven member includes a first driven member body, the second driven member includes a second driven member body, one of the first driven member body and the second driven member body is provided with a first clamping groove, the other one is provided with a first clamping block matched with the first clamping groove, and the first driven member and the second driven member are connected through the first clamping block and the first clamping groove in a clamping manner.

In the composite rotating cutter head assembly, the first driven piece and the second driven piece are provided with the first clamping groove through one of the first clamping groove and the other clamping groove is connected with the first clamping block in a clamping manner, so that the first driven piece drives the second driven piece to do positive and negative rotation motion. The first driven piece and the second driven piece are simple in assembly structure, and assembly efficiency of the composite rotating cutter head assembly is improved.

In one embodiment, the first positioning structure comprises a side plate and a bottom plate, the side plate is surrounded and connected with one side of the bottom plate, a first through hole is formed in the bottom plate, a third engaging tooth is formed in the bottom plate or the side plate, a fourth engaging tooth matched with the third engaging tooth is formed in the second driven member body, the second driven member is meshed and connected with the first positioning structure through the third engaging tooth and the fourth engaging tooth, and the axis of the second driven member body and the first through hole are coaxially arranged.

In the composite rotating cutter head assembly, the first positioning structure comprises a side plate and a bottom plate, the side plate is connected with one side of the bottom plate, and the bottom plate is further provided with a first through hole, so that a groove with the through hole is formed in the first positioning structure. The lateral plate or the bottom plate is provided with a third engaging tooth, the second driven part body is provided with a fourth engaging tooth, and the second driven part and the first positioning structure are connected in a meshing mode through the third engaging tooth and the fourth engaging tooth, so that the second driven part drives the first positioning structure to do positive and negative rotation movement. In addition, the first positioning structure is provided with a groove with a through hole for placing and positioning the knife net assembly and providing structural support for realizing forward and reverse rotation of the first knife net and the second knife net.

In one embodiment, a second through hole is formed in the second follower body, and the second follower is sleeved outside the first follower through the second through hole; the first driven piece further comprises at least one positioning block, the positioning block is arranged on the first driven piece body, the first clamping groove is formed in the positioning block, the positioning block penetrates through the second through hole, and the cutter mesh component rotates through the transmission connecting piece.

According to the cutter head component with the composite rotation function, the positioning block is arranged on the first driven part body, penetrates through the second through hole and enables the cutter net component to rotate through the transmission connecting piece, and therefore the cutter net component is better supported to rotate.

The compound rotary cutter head component in one embodiment further comprises a third positioning structure, a third through hole is formed in the first cutter net, the third positioning structure is connected with the first cutter net, and the third positioning structure at least partially penetrates through the third through hole; the third positioning structure comprises a third positioning structure body, a fourth through hole is formed in the third positioning structure body, a plurality of convex ribs are arranged on the third positioning structure body, the second cutter mesh comprises a second cutter mesh body, a plurality of second clamping grooves matched with the convex ribs are formed in the second cutter mesh body, the second clamping grooves are formed in the periphery of the second cutter mesh body, and the second cutter mesh penetrates through the fourth through hole and is connected with the convex ribs of the third positioning structure in a clamping mode.

The composite rotating cutter head assembly realizes connection and positioning of the first cutter mesh and the second cutter mesh by arranging the third positioning structure, so that the second cutter mesh can perform forward and reverse rotation movement under the driving of the first cutter mesh. In the structure, the assembly and the positioning of the first knife net and the second knife net are realized through the third positioning structure, so that the assembly and the positioning of the first knife net and the second knife net can be realized, the assembly precision of the knife net component can be improved, and the assembly efficiency of the knife net component can also be improved.

In one embodiment, the second positioning structure includes a bracket body, a fifth through hole is formed in the bracket body, a third clamping groove is formed in one of the side wall of the bracket body and the peripheral side wall of the side plate, a second clamping block matched with the third clamping groove is formed in the other one of the side wall of the bracket body and the peripheral side wall of the side plate, and the second positioning structure and the first positioning structure are connected in a clamping manner through the third clamping groove and the second clamping block; the first blade net comprises a first blade net body and a limiting lug, the third through hole is formed in the first blade net body, the limiting lug is arranged along the peripheral side wall of the first blade net body, and the limiting lug is connected with the third clamping groove in a clamping mode.

The second positioning structure comprises a bracket body, a third clamping groove is formed in one of the bracket body and the first positioning structure, a second clamping block is arranged on the other one of the bracket body and the first positioning structure, and the second positioning structure is connected with the second clamping block in a clamping mode through the third clamping groove, so that the second positioning structure is sleeved on and clamped on the side plate of the first positioning structure. And the peripheral side wall of the first knife net body of the first knife net is also provided with a limiting lug. After the limiting convex block is clamped and connected with the fourth clamping groove, the first blade net is positioned in the first through hole of the first positioning structure. In the structure, the first blade mesh is connected with the third clamping groove on the first positioning structure or the second positioning structure in a clamping manner through the limiting lug on the first blade mesh, so that the first blade mesh is fixedly connected with the first positioning structure or the second positioning structure. Meanwhile, the first positioning structure is connected with the second positioning structure in a clamping connection mode through the third clamping groove and the second clamping block, and therefore the first blade mesh is locked between the first positioning structure and the second positioning structure. Through foretell assembly methods, can realize the monolithic stationary of sword net subassembly to make sword net subassembly rotate along with spacing casing forward and reverse, can also realize in addition that first sword net assembles the accuracy on first location structure or second location structure.

An electric shaver comprising: the first sword, the second move sword, motor and aforementioned arbitrary compound pivoted tool bit subassembly, first blade net is provided with first storage tank, the second blade net is provided with the second storage tank, first move the sword setting in the first storage tank and with the face of shaving of first blade net offsets, the second moves the sword setting in the second storage tank and with the face of shaving of second blade net offsets, the power transmission of motor extremely on the eccentric wheel, through the eccentric wheel with compound pivoted tool bit subassembly the transmission subassembly is connected, and the rethread transmission subassembly transmits power for driven subassembly, and the rethread is from moving the subassembly and is transmitted power for the tool bit net subassembly.

Foretell electric shaver through setting up first sword net and second sword net, carries out positive and negative rotation through aforementioned first sword net of drive assembly drive and second sword net, simple structure, and the assembly degree of difficulty is low, can effectively improve electric shaver's positive and negative rotation reliability.

Drawings

FIG. 1 is a schematic diagram of the overall construction of a compound rotary cutter head assembly according to the present invention;

FIG. 2 is a schematic view of the overall structure of the transmission assembly of the present invention;

FIG. 3 is a schematic structural diagram of the eccentric wheel of the present invention;

FIG. 4 is a schematic view of a first follower according to the present invention;

FIG. 5 is a schematic view of a second follower according to the present invention;

FIG. 6 is a schematic structural view of a first positioning structure according to the present invention;

FIG. 7 is a schematic structural view of a second positioning structure according to the present invention;

FIG. 8 is a schematic structural view of a third positioning structure according to the present invention;

FIG. 9 is a schematic view of a knife net assembly according to the present invention;

FIG. 10 is one of the assembled schematic views of the composite rotary cutter head assembly of the present invention;

FIG. 11 is a second schematic view of the composite rotary cutter head assembly of the present invention shown assembled;

FIG. 12 is an assembled schematic view of a first blade network, a second blade network, a first locating feature, and a second locating feature of the compound rotary cutter head assembly of the present invention;

FIG. 13 is a cross-sectional view of the composite rotary cutter head assembly of the present invention with the first and second blade networks, the first and second indexing features assembled;

fig. 14 is a schematic structural view of a first knife net, a second knife net, a first positioning structure, a second positioning structure, a first movable knife and a second movable knife of the composite rotary knife head assembly according to the present invention.

Wherein, the corresponding relation between the reference signs and the component names is as follows:

1, a knife net component, 11, a first knife net, 111, a first knife net body and 112 limit lugs; 12 a second knife net, 121 a second knife net body, 101 a third through hole, 102 a second clamping groove, 103 a first accommodating groove and 104 a second accommodating groove;

2, a driven assembly, 21 a first follower, 211 a first follower body, 214 a first slot, 215 a positioning block, 22 a second follower, 221 a second follower body, 222 a fourth tooth, 223 a first latch, 23 a limiting shell, 231 a first positioning structure, 2311 a side plate, 2312 a bottom plate, 2313 a third tooth, 2314 a second latch, 232 a second positioning structure, 2321 a bracket body, 201 a first through hole, 202 a second through hole, 203 a fifth through hole and 204 a third slot;

3 transmission assembly, 31 first link, 311 first link body, 312 first connection portion, 313 second connection portion, 32 second link, 321 second link body, 322 third connection portion, 3221 plug hole, 323 fourth connection portion, 33 gear assembly, 331 gear set, 3311 driving gear, 3312 driven gear, 332 gear shaft assembly, 3321 first gear shaft, 3322 second gear shaft;

4 eccentric wheel, 401 eccentric hole;

5, a third positioning structure, 51 a third positioning structure body, 52 convex ribs and 501 a fourth through hole;

61 a first moving blade, 62 a second moving blade.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A composite rotary cutter head assembly and an electric shaver according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 and 11, the present embodiment discloses a composite rotary cutter head assembly comprising: the knife net component 1, the knife net component 1 includes a first knife net 11 and a second knife net 12, the second knife net 12 is arranged at the inner side of the first knife net 11; the driven assembly 2 is connected with the cutter mesh assembly 1, and the driven assembly 2 is used for enabling the cutter mesh assembly 1 to rotate; and one end of the transmission component 3 is rotatably connected with the driven component 2, the other end of the transmission component 3 is used for being connected with an external driving device, and the transmission component 3 is used for driving the driven component 2 and enabling the first knife net 11 and the second knife net 12 to rotate forwards or reversely.

The utility model provides a compound pivoted tool bit subassembly, including cutter mesh subassembly 1, driven subassembly 2 and transmission assembly 3, wherein 3 one end of transmission assembly and driven subassembly 2 rotatable coupling, the other end is connected with external drive device. Under the rotary driving of the external driving device, the first component of the transmission component 3 is driven to rotate around the shaft, the second component connected with the first component rotates in a periodic half-cycle manner in the opposite direction under the driving of the first component, and at the moment, the second component of the transmission component 3 transmits the driving force to the driven component 2, so that the driven component 2 rotates in the periodic half-cycle manner in the opposite direction. At this time, the driven assembly 2 is connected to the cutter net assembly 1, so that the first cutter net 11 and the second cutter net 12 of the cutter net assembly 1 are driven to perform periodic half-cycle rotation in opposite directions, and finally forward and reverse rotation of the first cutter net and the second cutter net is realized.

Alternatively, the first wire cutter 11 and the second wire cutter 12 can continuously rotate in the forward direction and the first wire cutter 11 and the second wire cutter 12 can continuously rotate in the reverse direction under the action of the transmission assembly 3 and the driven assembly 2.

As shown in fig. 1 and 2, in addition to the features of the above-mentioned embodiment, the composite rotary cutter head assembly of the present embodiment further includes an eccentric wheel 4, the transmission assembly 3 includes a first connecting rod 31, a second connecting rod 32 and a gear assembly 33, the first connecting rod 31 includes a first connecting rod body 311, a first connecting portion 312 and a second connecting portion 313, the first connecting portion 312 and the second connecting portion 313 are oppositely disposed on the first connecting rod body 311, the first connecting portion 312 is connected with the eccentric wheel 4, and the first connecting portion 312 and the eccentric wheel 4 are relatively rotatable; the second link 32 includes a second link body 321, a third connecting portion 322, and a fourth connecting portion 323, the fourth connecting portion 323 is connected with the second connecting portion 313, the third connecting portion 322 is connected with the gear assembly 33, and the gear assembly 33 is connected with the driven assembly 2.

The composite rotating cutter head assembly is used as a driving wheel by arranging the eccentric wheel 4, the eccentric hole 401 on the eccentric wheel 4 is connected with the first connecting part 312 on the first connecting rod 31, so that the first connecting rod 31 is driven to rotate in the forward and reverse directions, the second connecting rod 32 is connected with the second connecting part 313 through the fourth connecting part 323 so as to rotate in the forward and reverse directions, the gear assembly 33 connected with the third connecting part 322 of the second connecting rod 32 is driven to rotate, the gear assembly 33 is connected with the driven assembly 2, so that the driven assembly 2 is driven to rotate in the forward and reverse directions, and finally the driven assembly 2 drives the cutter net assembly 1 connected with the driven assembly 2 to rotate in the forward and reverse directions. The composite rotating cutter head assembly with the design is simple in structure and good in reliability. In addition, transmission assembly 3 carries out forward and reverse pivoted transmission through the form that sets up including first connecting rod 31 and second connecting rod 32, compares with single connecting rod, can effectively reduce external drive device's rotation torsion requirement, and can alleviate the pressure of driven subassembly 2 to the connecting rod to it is more smooth and easy to make transmission assembly 3's operation, can also effectively prolong the life of compound pivoted tool bit subassembly.

Optionally, the third connecting portion 322 is a positioning convex pillar, a rack is disposed on an outer side wall of the positioning convex pillar, a tooth portion matched with the rack on the outer side wall of the positioning convex pillar is disposed on the gear assembly 33, and the second connecting rod 32 is meshed with the tooth portion of the gear assembly 33 through the rack on the outer side wall of the third connecting portion 322, so that the gear assembly 33 can rotate forward and backward.

Optionally, a tooth part is arranged on the driven assembly 2, and the driven assembly 2 is in meshed connection with the gear assembly 33, so that the gear assembly 33 drives the driven assembly 2 to rotate in the forward and reverse directions.

As shown in fig. 1 and fig. 3, in the present embodiment, an eccentric hole 401 is further disposed on the eccentric wheel 4, and the first connecting portion 312 is a first positioning convex pillar, and the first positioning convex pillar is connected with the eccentric hole 401 in a snap-fit manner.

As shown in fig. 2, in the present embodiment, one of the second connecting portion 313 and the fourth connecting portion 323 is a positioning through hole, the other one is a second positioning boss matched with the positioning through hole, and the first connecting rod 31 and the second connecting rod 32 are connected to the second positioning boss through the positioning through hole in a snap-fit manner.

In the composite rotating cutter head assembly, the first connecting portion 312 is a first positioning convex pillar, and is connected with the eccentric hole 401 of the eccentric wheel 4 in a clamping manner through the first positioning convex pillar. The first connecting rod 31 and the second connecting rod 32 are connected in a clamping manner through the positioning through hole and the second positioning convex column. The structure enables the first connecting rod 31 and the eccentric wheel 4 and the first connecting rod 31 and the second connecting rod 32 to be mounted more conveniently and quickly, and the assembly efficiency is improved.

As shown in fig. 1, 2 and 10, in the present embodiment, the driven assembly 2 includes a first driven member 21, a second driven member 22 and a limiting housing 23, the limiting housing 23 includes a first positioning structure 231 and a second positioning structure 232, the first positioning structure 231 is connected to the second positioning structure 232, the second driven member 22 is connected to the first driven member 21 and the first positioning structure 231, the first driven member 21 is provided with a first engaging tooth 213, and the limiting housing 23 is connected to the first cutting mesh 11 of the cutting mesh assembly 1; the gear assembly 33 includes a gear set 331, the gear set 331 includes a driving gear 3311 and two driven gears 3312, the driving gear 3311 is connected to a third connecting portion 322, the driving gear 3311 and the driven gears 3312 are respectively engaged with the teeth of the first follower 21, the third connecting portion 322 drives the driving gear 3311 to rotate relative to the first follower 21, and the driven gear 3312 rotates relative to the first follower 21.

In the composite rotary cutter head assembly, the driven assembly 2 comprises the first driven member 21, the second driven member 22 and the limiting shell 23, so that the driving pressure of the transmission assembly 3 on the driven assembly 2 can be further reduced, and the service life of the transmission assembly 3 is prolonged. According to the composite rotating cutter head component, the gear component 33 is arranged to serve as the transmission component 3 for driving the cutter net to rotate forward and backward, so that the stressed area of forward and backward rotation of the cutter net can be enlarged on the premise of not obviously enhancing driving power, and a technical basis is provided for enlarging the shaving face of the forward and backward rotation shaver. In addition, the planetary gear assembly can enable the forward and reverse rotation of the shaver net to be more stable, so that the smoothness of the shaver net is improved when the shaver net rotates forward and reverse.

In the above-mentioned cutter head assembly with compound rotation, the first driven member 21 is provided with a tooth portion, the gear assembly 33 includes a driving gear 3311 and two driven gears 3312, and the driving gear 3311 and the two driven gears 3312 are respectively engaged with the tooth portion of the first driven member 21, so that the first driven member 21 becomes a planetary gear wheel. The driving gear 3311 is connected to the third connecting portion 322 of the second connecting rod 32, and under the driving of the eccentric wheel 4, the second connecting rod 32 drives the driving gear 3311 to rotate, and the driving gear 3311 further drives the first driven member 21 to rotate and drives the driven gear 3312 on the first driven member 21 to rotate relatively. The driving gear 3311 and the two driven gears 3312 are designed in a triangular plane shape on the upper layer of the first follower 21, and the two driven gears 3312 limit the position of the first follower 21, so that the first follower 21 does not shift in the rotation process.

The compound rotary cutter head assembly, described above, the gear assembly is designed as a planetary gear set including a drive gear 3311 and at least one driven gear 3312. The gear assembly 33 is designed to be a planetary gear set to realize transmission, has small transmission volume, large bearing capacity and stable work, and can better support the whole cutter head assembly with compound rotation, thereby improving the stability of the cutter head assembly with compound rotation.

As shown in fig. 1, 2 and 10, the gear assembly 33 further includes a gear shaft assembly 332, the gear shaft assembly 332 includes a first gear shaft 3321 and a second gear shaft 3322, the third connecting portion 322 is provided with an insertion hole 3221, one end of the first gear shaft 3321 is in interference fit with the shaft hole of the driving gear 3311, the other end of the first gear shaft 3321 is in interference fit with the insertion hole 3221, the second gear shaft 3322 penetrates through the central hole of the driven gear 3312, and the driven gear 3312 rotates around the second gear shaft 3322.

As shown in fig. 4 and 5, in the present embodiment, the first follower 21 includes a first follower body 211, the second follower 22 includes a second follower body 221, one of the first follower body 211 and the second follower body 221 is provided with a first engaging groove 214, the other one is provided with a first engaging block 223 adapted to the first engaging groove 214, and the first follower 21 and the second follower 22 are connected by the first engaging block 223 and the first engaging groove 214 in a snap-fit manner.

In the composite rotating cutter head assembly, the first driven member 21 and the second driven member 22 are connected in a clamping manner by the first clamping groove 214 and the first clamping block 223, so that the first driven member 21 drives the second driven member 22 to rotate in the forward and reverse directions. The first driven part 21 and the second driven part 22 are simple in assembly structure, and the assembly efficiency of the cutter head assembly with compound rotation is improved.

As shown in fig. 5 and fig. 6, in the present embodiment, the first positioning structure 231 includes a side plate 2311 and a bottom plate 2312, the side plate 2311 is surrounded and connected with one side of the bottom plate 2312, the bottom plate is provided with a first through hole 201, the bottom plate 2312 or the side plate 2311 is provided with a third engaging tooth 2313, the second driven member body 221 is provided with a fourth engaging tooth 222 adapted to the third engaging tooth 2313, the second driven member 22 is engaged and connected with the first positioning structure 231 through the third engaging tooth 2313 and the fourth engaging tooth 222, and the axis of the second driven member body 221 is coaxial with the first through hole 201.

In the composite rotary cutter head assembly, the first positioning structure 231 comprises the side plate 2311 and the bottom plate 2312, the side plate 2311 is connected with one side of the bottom plate 2312, and the bottom plate 2312 is further provided with the first through hole 201, so that a groove with a through hole is formed in the first positioning structure 231. The side plate 2311 or the bottom plate 2312 is provided with a third engaging tooth 2313, the second driven member body 221 is provided with a fourth engaging tooth 222, and the second driven member 22 is connected with the first positioning structure 231 in a meshing manner through the third engaging tooth 2313 and the fourth engaging tooth 222, so that the second driven member 22 drives the first positioning structure 231 to rotate forward and backward. In addition, the first positioning structure 231 is provided with a groove with a through hole for placing and positioning the knife net assembly 1, and provides structural support for realizing forward and reverse rotation of the first knife net 11 and the second knife net 12.

As shown in fig. 4 and 5, in the present embodiment, the second follower body 221 is provided with a second through hole 202, and the second follower 22 is sleeved outside the first follower 21 through the second through hole 202; the first follower 21 further includes at least one positioning block 215, the positioning block 215 is disposed on the first follower body 211, the positioning block 215 is provided with a first engaging groove 214, and the positioning block 215 passes through the second through hole 202 and rotates the cutter net assembly 1 through the transmission connection member.

In the composite rotary cutter head assembly, the first driven member body 211 is provided with the positioning block 215, and the positioning block 215 passes through the second through hole 202 and rotates the cutter net assembly 1 through the transmission connecting member, so that the cutter net assembly 1 is better supported to rotate.

As shown in fig. 8 and 9, the composite rotary cutter head assembly in the present embodiment further includes a third positioning structure 5, a third through hole 101 is formed in the first blade net 11, the third positioning structure 5 is connected to the first blade net 11, and the third positioning structure 5 at least partially penetrates through the third through hole 101; the third positioning structure 5 includes a third positioning structure body 51, a fourth through hole 501 is formed in the third positioning structure body 51, a plurality of convex ribs 52 are formed in the third positioning structure body 51, the second knife net 12 includes a second knife net body 121, a plurality of second clamping grooves 102 matched with the convex ribs 52 are formed in the second knife net body 121, the second clamping grooves 102 are formed along the periphery of the second knife net body 121, the second knife net 12 penetrates through the fourth through hole 501, and the second clamping grooves 102 are connected with the convex ribs 52 of the third positioning structure 5 in a clamping manner.

The composite rotating cutter head component realizes the connection and positioning of the first cutter mesh 11 and the second cutter mesh 12 by arranging the third positioning structure 5, so that the second cutter mesh 12 can rotate forward and backward under the driving of the first cutter mesh 11. In the structure, the assembly and the positioning of the first knife net 11 and the second knife net 12 are realized through the third positioning structure 5, so that the assembly and the positioning of the first knife net 11 and the second knife net 12 can improve the assembly precision of the knife net component 1 and the assembly efficiency of the knife net component 1.

As shown in fig. 6, 7, and 9, in this embodiment, the second positioning structure 232 includes a bracket body 2321, the bracket body 2321 is provided with a fifth through hole 203, one of a side wall of the bracket body 2321 and a peripheral side wall of the side plate 2311 is provided with a third locking groove 204, the other one is provided with a second locking block 2314 matched with the third locking groove 204, and the second positioning structure 232 and the first positioning structure 231 are connected by the third locking groove 204 and the second locking block 2314 in a locking manner; the first blade net 11 comprises a first blade net body 111 and a limiting bump 112, a third through hole 101 is formed in the first blade net body 111, the limiting bump 112 is arranged along the peripheral side wall of the first blade net body 111, and the limiting bump 112 is connected with a third clamping groove 204 in a clamping mode.

In the composite rotating cutter head assembly, the second positioning structure 232 includes the bracket body 2321, one of the bracket body 2321 and the first positioning structure 231 is provided with the third engaging groove 204, the other one of the bracket body 2321 and the first positioning structure 231 is provided with the second engaging block 2314, and the second positioning structure 232 is connected in a manner of engaging the third engaging groove 204 with the second engaging block 2314, so that the second positioning structure 232 is sleeved and engaged with the side plate 2311 of the first positioning structure 231. The first blade mesh body 111 of the first blade mesh 11 is further provided with a limit bump 112 on the outer peripheral side wall thereof. After the limit protrusion 112 is engaged with the third engaging groove 204, the first blade 11 is positioned in the first through hole 201 of the first positioning structure 231. In the above structure, the first blade mesh 11 is connected with the third slot 204 on the first positioning structure 231 or the second positioning structure 232 through the limiting protrusion 112 on the first blade mesh in a clamping manner, so as to fixedly connect the first blade mesh 11 with the first positioning structure 231 or the second positioning structure 232. Meanwhile, the first positioning structure 231 and the second positioning structure 232 are connected in a clamping connection manner through the third clamping groove 204 and the second clamping block 2314, so that the first blade net 11 is locked between the first positioning structure 231 and the second positioning structure 232. Through the assembly mode, the cutter mesh assembly 1 can be integrally fixed, so that the cutter mesh assembly 1 rotates forwards and reversely along with the limiting shell 23, and the accuracy of the installation and registration of the first cutter mesh 11 on the first positioning structure 231 or the second positioning structure 232 can be realized.

An embodiment of a second aspect of the utility model provides an electric shaver comprising: the first knife blade 61, the second knife blade 62, the motor and the composite rotating knife head component are any one of the above components, the first knife web 11 is provided with a first containing groove 103, the second knife web 12 is provided with a second containing groove 104, the first knife blade 61 is arranged in the first containing groove 103 and is abutted against the shaving surface of the first knife web 11, the second knife blade 62 is arranged in the second containing groove 104 and is abutted against the shaving surface of the second knife web 12, the power of the motor is transmitted to the eccentric wheel 4 and is connected with the transmission component 3 of the composite rotating knife head component through the eccentric wheel 4, the power is transmitted to the driven component 2 through the transmission component 3, and the power is transmitted to the knife web component 1 from the driven component 2.

The electric shaver is provided with the first cutter mesh 11 and the second cutter mesh 12, and the first cutter mesh 11 and the second cutter mesh 12 are driven by the transmission assembly 3 to rotate forward and backward, so that the electric shaver is simple in structure and low in assembly difficulty, and the forward and backward rotation reliability of the electric shaver can be effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A composite rotary cutter head assembly comprising:

the knife net component (1), the knife net component (1) comprises a first knife net (11) and a second knife net (12), and the second knife net (12) is arranged on the inner side of the first knife net (11);

the driven assembly (2), the driven assembly (2) is connected with the cutter net assembly (1), and the driven assembly (2) is used for enabling the cutter net assembly (1) to rotate;

drive assembly (3), drive assembly (3) one end and driven subassembly (2) rotatable coupling, the other end is used for being connected with external drive device, drive assembly (3) are used for the drive driven subassembly (2) and make first sword net (11) with second sword net (12) carry out forward rotation or antiport.

2. Compound rotary cutter head assembly according to claim 1, further comprising an eccentric (4), the transmission assembly (3) comprising a first connecting rod (31), a second connecting rod (32) and a gear assembly (33),

the first connecting rod (31) comprises a first connecting rod body (311), a first connecting part (312) and a second connecting part (313), the first connecting part (312) and the second connecting part (313) are oppositely arranged on the first connecting rod body (311), the first connecting part (312) is connected with the eccentric wheel (4), and the first connecting part (312) and the eccentric wheel (4) can relatively rotate;

the second connecting rod (32) comprises a second connecting rod body (321), a third connecting part (322) and a fourth connecting part (323), the fourth connecting part (323) is connected with the second connecting part (313), the third connecting part (322) is connected with the gear assembly (33), and the gear assembly (33) is connected with the driven assembly (2).

3. The compound rotating cutter head assembly according to claim 2, wherein the eccentric wheel (4) is provided with an eccentric hole (401), and the first connecting portion (312) is a first positioning convex column which is in snap-fit connection with the eccentric hole (401); and/or

One of the second connecting part (313) and the fourth connecting part (323) is a positioning through hole, the other one is a second positioning convex column matched with the positioning through hole, and the first connecting rod (31) and the second connecting rod (32) are connected with the second positioning convex column in a clamping mode through the positioning through hole.

4. The compound rotary cutter head assembly as claimed in claim 2, wherein the driven assembly (2) comprises a first driven member (21), a second driven member (22), a limit housing (23), the limit housing (23) comprises a first positioning structure (231) and a second positioning structure (232), the first positioning structure (231) is connected with the second positioning structure (232), the second driven member (22) is respectively connected with the first driven member (21) and the first positioning structure (231), and the limit housing (23) is connected with the first cutter mesh (11) of the cutter mesh assembly (1);

gear assembly (33) includes gear train (331), gear train (331) includes driving gear (3311) and two driven gear (3312), driving gear (3311) with third connecting portion (322) are connected, driving gear (3311) with driven gear (3312) can respectively with the tooth portion meshing of first follower (21) is connected, third connecting portion (322) drive driving gear (3311) is relative first follower (21) rotates, driven gear (3312) is relative first follower (21) rotates.

5. The compound rotary cutter head assembly as claimed in claim 4, wherein the gear assembly (33) further comprises a gear shaft assembly (332), the gear shaft assembly (332) comprises a first gear shaft (3321) and a second gear shaft (3322), the third connecting portion (322) is provided with a connection hole (3221), one end of the first gear shaft (3321) is in interference fit with the shaft hole of the driving gear (3311), the other end of the first gear shaft is in interference fit with the connection hole (3221), the second gear shaft (3322) penetrates through the central hole of the driven gear (3312), and the driven gear (3312) rotates around the second gear shaft (3322).

6. The compound rotary cutter head assembly according to claim 5, wherein the first follower (21) comprises a first follower body (211), the second follower (22) comprises a second follower body (221), one of the first follower body (211) and the second follower body (221) is provided with a first clamping groove (214), the other one of the first follower body (211) and the second follower body (221) is provided with a first clamping block (223) matched with the first clamping groove (214), and the first follower (21) and the second follower (22) are in clamping connection through the first clamping block (223) and the first clamping groove (214); and/or

The first positioning structure (231) comprises a side plate (2311) and a bottom plate (2312), the side plate (2311) is surrounded and connected with one side of the bottom plate (2312), a first through hole (201) is formed in the bottom plate, a third engaging tooth (2313) is arranged on the bottom plate (2312) or the side plate (2311), a fourth engaging tooth (222) matched with the third engaging tooth (2313) is arranged on the second driven piece body (221), the second driven piece (22) is meshed and connected with the first positioning structure (231) through the third engaging tooth (2313) and the fourth engaging tooth (222), and the axis of the second driven piece body (221) and the first through hole (201) are coaxially arranged.

7. The cutter head assembly with compound rotation as claimed in claim 6, wherein a second through hole (202) is formed in the second follower body (221), and the second follower (22) is sleeved outside the first follower (21) through the second through hole (202);

the first driven piece (21) further comprises at least one positioning block (215), the positioning block (215) is arranged on the first driven piece body (211), the first clamping groove (214) is formed in the positioning block (215), the positioning block (215) penetrates through the second through hole (202), and the cutter mesh assembly (1) is rotated through a transmission connecting piece.

8. The compound rotary cutter head assembly as claimed in claim 6, further comprising a third positioning structure (5), wherein a third through hole (101) is formed in the first cutter mesh (11), the third positioning structure (5) is connected with the first cutter mesh (11), and the third positioning structure (5) at least partially penetrates through the third through hole (101);

third location structure (5) include third location structure body (51), be equipped with fourth perforating hole (501) on third location structure body (51), be equipped with a plurality of protruding muscle (52) on third location structure body (51), second sword net (12) include second sword net body (121), be equipped with on second sword net body (121) a plurality of with second draw-in groove (102) of protruding muscle (52) looks adaptation, second draw-in groove (102) are followed the periphery setting of second sword net body (121), second sword net (12) pass fourth perforating hole (501), and pass through second draw-in groove (102) with protruding muscle (52) block of third location structure (5) is connected.

9. The composite rotary cutter head assembly as claimed in claim 8, wherein the second positioning structure (232) comprises a bracket body (2321), a fifth through hole (203) is formed in the bracket body (2321), a third clamping groove (204) is formed in one of the side wall of the bracket body (2321) and the peripheral side wall of the side plate (2311), a second clamping block (2314) matched with the third clamping groove (204) is formed in the other one of the side wall of the bracket body (2321) and the peripheral side wall of the side plate (2311), and the second positioning structure (232) is in clamping connection with the first positioning structure (231) through the third clamping groove (204) and the second clamping block (2314);

the first knife net (11) comprises a first knife net body (111) and a limiting bump (112), the third through hole (101) is formed in the first knife net body (111), the limiting bump (112) is arranged along the peripheral side wall of the first knife net body (111), and the limiting bump (112) is connected with the third clamping groove (204) in a clamping mode.

10. An electric shaver, characterized in that it comprises a first moving blade (61), a second moving blade (62), a motor and a composite rotating shaver head assembly according to any one of claims 2-9, the first shaver net (11) is provided with a first containing groove (103), the second shaver net (12) is provided with a second containing groove (104), the first moving blade (61) is arranged in the first containing groove (103) and abuts against the shaving surface of the first shaver net (11), the second moving blade (62) is arranged in the second containing groove (104) and abuts against the shaving surface of the second shaver net (12), the power of the motor is transmitted to the eccentric wheel (4), is connected with the transmission assembly (3) of the composite rotating shaver head assembly through the eccentric wheel (4), and is transmitted to the driven assembly (2) through the transmission assembly (3), and then the power is transmitted to the knife net component (1) from the driven component (2).