CN219345413U

CN219345413U - Transmission assembly and personal care appliance

Info

Publication number: CN219345413U
Application number: CN202223362161.4U
Authority: CN
Inventors: 唐亚东; 周鄂林
Original assignee: Touchbeauty Beauty & Health Shenzhen Co ltd
Current assignee: Touchbeauty Beauty & Health Shenzhen Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-07-14
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a transmission assembly and a personal care appliance, wherein the transmission assembly is used for the personal care appliance, the personal care appliance comprises a host, a driving piece arranged on the host and a function execution module, the transmission assembly comprises an adapter and a driving rod, the adapter comprises a mounting part and a butt convex part convexly arranged on the mounting part, and the mounting part is used for connecting an output shaft of the driving piece; the one end that deviates from the driving piece of adaptor is located to the actuating lever to be used for connecting function execution module, the actuating lever is equipped with the installation round hole and communicates in the drive draw-in groove of installation round hole, and the installation department inserts and locates the installation round hole, and butt convex part butt all is equipped with one in the groove lateral wall of drive draw-in groove and butt convex part at least. The technical scheme of the utility model can realize the improvement of the installation convenience between the driving rod and the adapter of the replaceable function execution module.

Description

Transmission assembly and personal care appliance

Technical Field

The utility model relates to the technical field of nursing products, in particular to a transmission assembly and a personal care appliance.

Background

The personal care electric appliance is an indispensable product in life of people, and is favored by tens of thousands of users in the characteristics of practicality, convenience, smallness and the like. At present, the personal care electrical appliances in the Chinese market break through the original product types pattern mainly comprising an electric shaver and an electric hair dryer, and are increasingly favored by consumers, such as oral care products represented by an electric toothbrush, cosmetic products represented by a eyebrow trimming device, an dehairing device, a nail beautifying device and the like, and facial cosmetic care products represented by a face steaming device, a skin cleaning device, a cosmetic leading-in and leading-out device and the like. Small household appliances of the personal care class featuring high-end, fashionable, and obvious functionality are becoming increasingly a necessity in consumer life, with a non-trivial market potential.

Taking as an example personal care appliances such as electric shavers, electric toothbrushes, epilators, etc. that require built-in motor drives, such personal care appliances typically comprise a detachably connected main unit and a functional head that can be removed for separate cleaning maintenance or for replacement of other functional heads. An adapter is generally sleeved on the motor output shaft of the host machine and is used for being connected with a driving rod in the functional head. The cross-sectional shape of the adapter on the market at present is mostly polygonal such as rectangle, square, and the mounting hole on the actuating lever also configures into rectangular hole, square hole correspondingly to can the mutual butt of edges and corners between adapter and the mounting hole, so that the motor can drive the actuating lever to rotate. When the user installs the function head by oneself, need arris to arris, angle diagonal angle just can install in place between adaptor and the mounting hole, lead to the user to need many times to match the installation and install inconvenient problem.

Disclosure of Invention

The utility model mainly aims to provide a transmission assembly, which aims to improve the installation convenience between a driving rod of a replaceable function execution module and an adapter.

In order to achieve the above object, the present utility model provides a transmission assembly for a personal care appliance, the personal care appliance including a main unit, a driving member disposed on the main unit, and a function executing module, the transmission assembly comprising:

the adapter comprises a mounting part and an abutting convex part which is convexly arranged on the mounting part, and the mounting part is used for connecting an output shaft of the driving part; and

the drive rod is arranged at one end of the adapter, which is away from the drive piece, and is used for connecting the function execution module, the drive rod is provided with a mounting round hole and a drive clamping groove communicated with the mounting round hole, the mounting part is inserted into the mounting round hole, the butt convex part is butt-jointed with the groove side wall of the drive clamping groove, and the drive clamping groove and the butt convex part are at least provided with one.

Optionally, the driving rod is further provided with a guide groove, one end of the guide groove is communicated with the driving clamping groove, and the other end of the guide groove is communicated with the outer end face of the mounting round hole; and in the depth direction of the mounting round hole, the bottom surface of the guide groove rotationally sinks along the circumferential direction of the mounting round hole.

Optionally, the guide way the drive draw-in groove reaches the butt convex part all is equipped with a plurality of and one-to-one setting, and is a plurality of the guide way is followed the circumference interval distribution of installation round hole.

Optionally, the installation part is configured as the cylinder, the outer peripheral face of installation part spacing butt in the pore wall face of installation round hole.

Optionally, the mounting portion is provided with a jack, and the jack is used for inserting and mounting the output shaft of the driving piece.

Optionally, one end of the abutting convex part, which is close to the bottom of the driving clamping groove, is provided with a guiding fillet.

Optionally, the guide groove penetrates through the hole wall surface of the mounting round hole and the outer circumferential surface of the driving rod, and the driving clamping groove penetrates through the hole wall surface of the mounting round hole and the outer circumferential surface of the driving rod.

Optionally, the personal care apparatus further comprises a housing, the transmission assembly further comprises a damper ring for connecting the housing and the driving rod, and the damper ring is sleeved on the outer circumferential surface of the driving rod.

Optionally, the damping ring is arranged in the middle of the driving rod.

Optionally, the shock attenuation ring includes shock attenuation outer lane, shock attenuation inner circle and supports the spoke, support the spoke and connect shock attenuation outer lane with shock attenuation inner circle, shock attenuation inner circle with the actuating lever butt, shock attenuation outer lane with casing butt.

Optionally, the damping ring is used for being fixedly arranged on the shell, and lubricating grease or lubricating liquid is filled between the damping ring and the driving rod.

Optionally, the housing is provided with a receiving groove corresponding to the shock absorbing ring, and the side wall of the shock absorbing ring is abutted to the side wall of the receiving groove.

The utility model also proposes a personal care appliance comprising:

a host;

the driving piece is arranged on the host;

a function execution module; and

any one of the transmission assemblies, wherein the mounting part of the transmission assembly is connected with the output shaft of the driving piece, and the driving rod of the transmission assembly is connected with the function execution module.

Optionally, the personal care appliance further includes a first housing, the function execution module, the first housing and the driving lever are assembled into a whole and form a functional head, the host includes a second housing detachably connected with the first housing, and the driving member is disposed on the second housing.

Optionally, the personal care appliances include a nose hair trimmer, an electric toothbrush, a nail clipper, a eyebrow trimmer, a hair clipper, an epilator, and the like.

According to the technical scheme, the mounting hole on the driving rod is set as the mounting round hole, and no matter what the cross-sectional shape of the mounting part is, as long as the width dimension of the mounting part is smaller than or equal to the diameter of the mounting round hole, the mounting part can be inserted into the mounting round hole at a plurality of angles on the end face of the driving rod, so that a user can more easily assemble the functional head on the host machine when the functional head is automatically mounted. The driving rod is provided with a driving clamping groove communicated with the mounting round hole, the mounting part is provided with a corresponding abutting convex part, and when the mounting part is inserted into the mounting round hole, the abutting convex part is positioned in the driving clamping groove. When the output shaft of the driving piece rotates, the driving clamping groove and the abutting convex part are mutually abutted on the groove side wall of the driving clamping groove, so that the adapter piece can effectively drive the driving rod to move, and the driving rod can rotate along with the output shaft of the motor. And moreover, the driving structure between the adapter and the driving rod cannot be worn out due to long-time work, so that the rejection rate and maintenance times of the personal care electric appliance can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a personal care appliance according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view through the axis of the embodiment shown in FIG. 1;

FIG. 4 is a schematic view of the embodiment of FIG. 1 from another perspective;

FIG. 5 is a schematic view of the transmission assembly and the drive member when assembled;

FIG. 6 is an exploded view of the adapter and drive rod;

fig. 7 is an exploded view of the first housing and the second housing.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Driving piece	50	Damping ring
11	Output shaft	51	Damping outer ring
				20	Function execution module	52	Shock-absorbing inner ring
30	Adapter piece	53	Support spoke
				31	Mounting part	60	Shell body
32	Abutment convex part	61	First shell body
				321	Guiding fillet	611	Accommodating groove
33	Jack (Jack)	612	Leading-in groove
				40	Driving rod	613	Check groove
41	Mounting round hole	614	Non-return convex part
				42	Driving clamping groove	62	Second shell
43	Guide groove	621	Clamping convex part

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

A personal care electric appliance such as an electric shaver, an electric toothbrush, a hair clipper and the like which are required to be provided with a motor driving function part is generally sleeved with an adapter on an output shaft of a motor and is used for being connected with a driving rod in the electric appliance, wherein the driving rod is provided with a mounting hole. The cross-sectional shape of the adapter on the market is mostly polygonal such as rectangle, square, and the mounting hole on the actuating lever is also correspondingly configured into polygonal such as rectangle, square, and this is in order to mutually support the edges and corners between installation department and the mounting hole, makes the motor drive actuating lever motion.

The driving structures having the edges and corners abutting each other between the mounting portion of the adapter and the mounting hole of the driving lever are easily worn away each other in long-time use until the mounting portion and the mounting Kong Dahua are mounted, so that the personal care appliance cannot be used normally. And the driving structure of the mutual butt of edges and corners between adaptor and the actuating lever requires high concentric precision when manufacturing to the actuating lever can transmit kinetic energy betterly, but the part that high accuracy required also can improve if production technology is not up to standard when producing, the rejection rate of product, makes extravagant manufacturing cost.

In view of the above, the present utility model provides a transmission assembly and a personal care appliance having the same, please refer to fig. 1 to 6, which are schematic diagrams of an embodiment of the personal care appliance of the present utility model, wherein the transmission assembly is used for the personal care appliance, and the personal care appliance includes a main machine, a driving member 10 disposed on the main machine, and a function executing module 20, and the transmission assembly comprises:

the adaptor 30 includes a mounting portion 31 and an abutment protrusion 32 protruding from the mounting portion 31, the mounting portion 31 being configured to connect with the output shaft 11 of the driving member 10; and

the driving rod 40 is arranged at one end of the adapter 30, which is far away from the driving piece 10, and is used for connecting the function execution module 20, the driving rod 40 is provided with a mounting round hole 41 and a driving clamping groove 42 communicated with the mounting round hole 41, the mounting part 31 is inserted into the mounting round hole 41, the abutting convex part 32 abuts against the groove side wall of the driving clamping groove 42, and at least one driving clamping groove 42 and at least one abutting convex part 32 are respectively arranged.

In the technical scheme of the utility model, the mounting hole on the driving rod 40 is set as the mounting round hole 41, so long as the width dimension of the mounting part 31 is smaller than or equal to the diameter of the mounting round hole 41, the mounting part 31 can be inserted into the mounting round hole 41 at a plurality of angles on the end surface of the driving rod 40, and a user can more easily assemble the functional head on the host machine when self-installing the functional head. The driving rod 40 is provided with a driving clamping groove 42 communicated with the mounting round hole 41, the mounting part 31 is provided with a corresponding abutting convex part 32, and when the mounting part 31 is inserted into the mounting round hole 41, the abutting convex part 32 is positioned in the driving clamping groove 42. When the output shaft 11 of the driving member 10 rotates, the driving clamping groove 42 and the abutting convex part 32 abut against the groove side wall of the driving clamping groove 42, so that the adaptor 30 can effectively drive the driving rod 40 to move, and the driving rod 40 follows the output shaft 11 of the driving member 10 to rotate. In addition, the driving structure between the adapter 30 and the driving rod 40 is not worn out due to long-time operation, which is beneficial to reducing the rejection rate and maintenance times of the personal care electric appliance. In particular, the driving member 10 may be a motor.

Optionally, the driving rod 40 is further provided with a guide groove 43, one end of the guide groove 43 is communicated with the driving clamping groove 42, and the other end of the guide groove is communicated with the outer end surface of the mounting round hole 41; in the depth direction of the mounting circular hole 41, the bottom surface of the guide groove 43 rotationally sinks in the circumferential direction of the mounting circular hole 41. During the insertion of the mounting portion 31 of the adapter 30 into the mounting circular hole 41 of the drive lever 40, the abutment protrusion 32 slides into the drive card slot 42 along the bottom surface of the guide slot 43. Since one end of the guide groove 43 communicates with the outer end surface of the mounting circular hole 41, the abutment protrusion 32 can fall from a plurality of angle directions and slide along the groove bottom surface of the guide groove 43. When the bottom surface of the guide groove 43 is rotated and sunk along the circumferential direction of the mounting circular hole 41, the hole wall of the mounting circular hole 41 can better enclose the mounting portion 31, so that the driving rod 40 cannot be separated from the adapter 30 due to vibration in the rotation process. In other embodiments, the guide groove 43 may not be provided, the driving slot 42 extends along the circumferential direction of the driving rod 40, and occupies a relatively large central angle (for example, 140 ° to 170 °), so that the abutment protrusion 32 can be smoothly inserted into the driving slot 42 in most of the central angles, thereby improving the installation convenience of the driving rod 40 and the adaptor 30.

Alternatively, the guide grooves 43, the driving clamping groove 42 and the abutting convex portion 32 are all provided with a plurality of guide grooves 43 and are arranged in a one-to-one correspondence manner, and the plurality of guide grooves 43 are distributed at intervals along the circumferential direction of the mounting round hole 41. At least two guide grooves 43 are provided, and a plurality of guide grooves 43 are circumferentially surrounded by the mounting circular hole 41. One guide groove 43 communicates with one drive catch groove 42, i.e. one abutment projection 32 can only slide into the corresponding drive catch groove 42 along the bottom surface of one guide groove 43. In the present embodiment, the guide grooves 43 are provided in two so that the abutment projections 32 can be inserted into the guide grooves 43 at a plurality of angles on the outer end surface of the mounting ring and slid into the driving card grooves 42 along the bottom surfaces of the guide grooves 43. In other embodiments, only one guide groove 43, each of the driving engagement groove 42 and the abutment protrusion 32 is provided, and the groove bottom surface of the guide groove 43 is rotationally sunk in the circumferential direction of the mounting circular hole 41 until the guide groove 43 is annular in the circumferential direction of the mounting circular ring.

Alternatively, the guide groove 43 penetrates the hole wall surface of the mounting circular hole 41 and the outer peripheral surface of the driving lever 40, and the driving clip groove 42 penetrates the hole wall surface of the mounting circular hole 41 and the outer peripheral surface of the driving lever 40. The mounting round hole 41 is communicated with the outer side of the driving rod 40, at this time, the length of the abutting convex part 32 in the radial direction of the driving rod 40 can be prolonged, the abutting area of the abutting convex part 32 and the side wall surface of the driving clamping groove 42 is increased, the abutting convex part 32 is beneficial to applying larger pressure to the side wall surface of the driving clamping groove 42, the abutting stability is enhanced, and the driving structure between the adapter 30 and the driving rod 40 is more stable. On the other hand, the mounting round hole 41 on the driving rod 40 is communicated with the outer side of the driving rod 40, so that the production materials are saved, and the production cost is reduced. In other embodiments, the guide groove 43 is configured as a countersunk groove structure provided on the wall surface of the mounting circular hole 41, which separates the mounting circular hole 41 from the outer peripheral surface of the driving rod 40 near the groove side wall of the outer peripheral surface of the driving rod 40; the drive card slot 42 is configured as a countersunk slot structure provided on the wall surface of the mounting circular hole 41, and its slot side wall near the outer peripheral surface of the drive lever 40 separates the mounting circular hole 41 from the outer peripheral surface of the drive lever 40.

Alternatively, the mounting portion 31 is configured as a cylinder, and the outer peripheral surface of the mounting portion 31 is in limited abutment with the hole wall surface of the mounting circular hole 41. When the adaptor 30 drives the driving rod 40 to rotate, the cylinder is easier to match with the mounting round hole 41 to rotate on the same axis, so that the rotation is more stable, and when the outer peripheral surface of the mounting part 31 is in limiting abutting connection with the hole wall surface of the mounting round hole 41, that is, the diameter of the mounting part 31 is the same as that of the mounting round hole 41, the adaptor 30 can be better matched with the rotating concentric axis in the process of driving the driving rod 40 to rotate, so that the driving rod 40 can better transmit the kinetic energy output by the output shaft 11 of the driving member 10. In other embodiments, the mounting portion 31 may be a polygonal body such as a square, a rectangular parallelepiped, or the like.

Alternatively, the mounting portion 31 is provided with a socket 33, and the socket 33 is configured to be inserted and mounted to the output shaft 11 of the driving member 10. The output head of the driving member 10 drives the adapter member 30 to rotate through the insertion hole 33. In other embodiments, the adapter 30 may be coupled to the output shaft 11 of the driver 10 by welding, glue fastening, or the like.

Optionally, an end of the abutment protrusion 32 near the bottom of the driving card slot 42 is provided with a guiding fillet 321. At this time, the guide rounded 321 is advantageous for the abutment protrusion 32 to slide along the bottom surface of the guide groove 43, and to smoothly slide into the driving engagement groove 42. In other embodiments, the abutment protrusion 32 may also be provided with a guiding ramp or without guiding structure (including guiding fillets, guiding ramps).

Optionally, the personal care apparatus further comprises a housing 60, the transmission assembly further comprises a damper ring 50 for connecting the housing 60 and the driving rod 40, and the damper ring 50 is sleeved on the outer circumferential surface of the driving rod 40. Because the torque at the two ends of the driving rod 40 will change during the rotation of the driving rod 40, the driving rod 40 will vibrate during the rotation, and therefore, the shock absorbing ring 50 is arranged between the driving rod 40 and the housing 60 to reduce the vibration of the driving rod 40, so as to ensure that the driving rod 40 can stably transmit kinetic energy. In other embodiments, the transmission assembly may also be provided without a damping ring 50.

Optionally, a shock ring 50 is provided in the middle of the drive rod 40. When the driving rod 40 vibrates due to the change of the torque at both ends of the driving rod 40, the rotation axis of the driving rod 40 is deviated from the axis of the output shaft 11 of the driving member 10 due to the vibration. When the shock absorbing ring 50 is disposed in the middle of the driving rod 40, the shock absorbing ring 50 counteracts the vibration in the middle of the driving rod 40, thereby reducing the deformation of the middle of the driving rod 40 caused by the torque change at two ends of the driving rod 40, and ensuring that the rotation axis of the driving rod 40 is coaxial with the output shaft 11 of the driving member 10. Meanwhile, the shock-absorbing ring 50 provided in the middle of the driving rod 40 has the function of supporting the driving rod 40, preventing the driving rod 40 from being suspended to rotate. In other embodiments, the shock ring 50 may also be disposed at an end of the driving rod 40 near or away from the adapter 30.

Alternatively, the damper ring 50 includes a damper outer ring 51, a damper inner ring 52, and support spokes 53, the support spokes 53 connect the damper outer ring 51 and the damper inner ring 52, the damper inner ring 52 abuts against the driving rod 40, and the damper outer ring 51 abuts against the housing 60. The structure can effectively buffer the shock from the driving rod 40 to the shock absorbing inner ring 52 through the supporting spokes 53, thereby achieving the shock absorbing effect. And the structure saves production materials and production cost. In other embodiments, the damper ring 50 may also be a direct connection between the damper outer ring 51 and the damper inner ring 52.

Optionally, the damping ring is fixed on the housing 60, and grease or lubricating fluid is filled between the damping ring 50 and the driving rod 40. In this embodiment, in order to reduce the energy lost in the process of transmitting the kinetic energy of the driving rod 40, especially the kinetic energy lost by the friction force between the driving rod 40 and the shock absorbing ring 50, the driving rod 40 is rotated relative to the shock absorbing inner ring 52, and the grease or the lubricating fluid is filled between the shock absorbing inner ring 52 and the driving rod 40, at this time, the driving rod 40 only has a small friction force on the shock absorbing inner ring 52, and the small friction force cannot rotate the shock absorbing ring 50 relative to the housing 60, thereby effectively reducing the kinetic energy lost by the friction force between the driving rod 40 and the shock absorbing ring 50. In other embodiments, the damper ring 50 may be fixedly connected to the driving rod 40 through the damper inner ring 52, the damper outer ring 51 rotates on an abutment surface with the housing 60, and grease or lubricating fluid is filled between the damper outer ring 51 and the housing 60 for reducing friction.

Optionally, the housing 60 is provided with a receiving groove 611 corresponding to the damper ring 50, and a side wall of the damper ring 50 abuts against a side wall of the receiving groove 611. In this embodiment, the shock absorbing ring 50 is slightly deformed to buffer the shock impact from the driving rod 40, and during the deformation of the shock absorbing ring 50, the shock absorbing ring 50 has a tendency to move along the axial direction of the driving rod 40, so the housing 60 is provided with a receiving groove 611 for receiving the shock absorbing ring 50, and the receiving groove 611 also has a function of limiting the movement of the shock absorbing ring 50 in the axial direction of the driving rod 40. Maintaining the dampening ring 50 in a centered position with the drive rod 40 is beneficial in maintaining the rotational axis of the drive rod 40 concentric with the output shaft 11 of the drive member 10. In other embodiments, the housing 60 may not have the receiving groove 611.

Referring to fig. 1 to 5, the present utility model further provides a personal care appliance, which includes:

a host;

a driving element 10 arranged on the host;

a function execution module 20; and

the transmission assembly has the specific structure referring to the above embodiments, and because the personal care appliance adopts all the technical solutions of all the embodiments, the transmission assembly at least has all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein. Wherein, the mounting part 31 of the transmission assembly is connected with the output shaft 11 of the driving member 10, and the driving rod 40 of the transmission assembly is connected with the function execution module 20.

In the personal care appliance, a switch button on a host controls whether the driving element 10 operates, the driving element 10 provides kinetic energy for enabling the function execution module 20 to operate through the output shaft 11, the driving rod 40 transmits the kinetic energy provided by the driving element 10 to the function execution module 20, and the function execution module 20 converts the kinetic energy provided by the driving rod 40 into other energy for realizing the function expected to be realized by the personal care appliance.

Optionally, the personal care appliance further includes a first housing 61, the function execution module 20, the first housing 61 and the driving lever 40 are assembled into one body and form a function head, the main body includes a second housing detachably connected to the first housing 61, and the driving member 10 is provided to the second housing 62. The detachable structure between the functional head and the host is achieved by a detachable connection between the first housing 61 and the second housing 62. The housing 60 of the personal care appliance includes a first housing 61 and a second housing 62, and the damper ring 50 is disposed between the first housing 61 and the driving lever 40. When the functional head is detached from the host, the shock-absorbing ring 50 and the driving rod 40 leave the host together with the functional head, and the adaptor 30 is separated from the driving rod 40 and sleeved on the driving member 10.

Referring to fig. 4, the first housing 61 is provided with an introduction groove 612, a check groove 613 and a check protrusion 614 provided in the check groove 613, wherein the introduction groove 612 is communicated with the check groove 613; the second housing 62 is provided with a locking protrusion 621 corresponding to the check groove 613. When the first housing 61 is axially inserted into the second housing 62, the locking protrusion 621 slides into the guiding groove 612, and then the first housing 61 rotates relative to the second housing 62, so that the locking protrusion 621 slides into the non-return groove 613 from the guiding groove 612, and finally the locking protrusion 621 is abutted by the non-return protrusion 614 and cannot automatically withdraw from the non-return groove 613, so that the first housing 61 is fixedly connected to the second housing 62, and the functional head and the host are assembled.

Alternatively, personal care appliances include, but are not limited to, nose hair trimmers, electric toothbrushes, nail trimmers, eyebrow trimmers, hair clipper balls, epilators, and the like. The hair clipper is an instrument for clipping more than fabric such as hair balls on clothes, and the dehairing device is an instrument for removing body hair on the skin surface of a human body. The personal care appliance can also comprise facial beauty care instruments such as a face steaming device, a skin cleaning instrument, a beauty import export instrument and the like. It should be noted that the functional heads can be provided with a plurality of functional heads, the functional heads can be installed on the same host in an adapting way, and the functions which can be realized by the functional heads include, but are not limited to, tooth brushing, nail beautifying, eyebrow trimming, hair shaving and face beautifying.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A transmission assembly for a personal care appliance, the personal care appliance comprising a host, a driver disposed on the host, and a function execution module, comprising:

2. The transmission assembly of claim 1, wherein the driving rod is further provided with a guide groove, one end of the guide groove is communicated with the driving clamping groove, and the other end of the guide groove is communicated with the outer end surface of the mounting round hole; and in the depth direction of the mounting round hole, the bottom surface of the guide groove rotationally sinks along the circumferential direction of the mounting round hole.

3. The transmission assembly of claim 2, wherein the guide grooves, the driving clamping grooves and the abutting convex parts are all provided with a plurality of guide grooves and are arranged in a one-to-one correspondence manner, and the guide grooves are distributed at intervals along the circumference of the mounting round hole.

4. The transmission assembly of claim 2, wherein the guide groove penetrates a wall surface of the mounting circular hole and an outer circumferential surface of the driving rod, and the driving clamping groove penetrates a wall surface of the mounting circular hole and an outer circumferential surface of the driving rod.

5. The transmission assembly according to claim 1, wherein the mounting portion is configured as a cylinder, and an outer peripheral surface of the mounting portion is in limited abutment with a hole wall surface of the mounting circular hole;

and/or the mounting part is provided with a jack, and the jack is used for inserting and mounting an output shaft of the driving piece;

and/or one end of the abutting convex part, which is close to the bottom of the driving clamping groove, is provided with a guiding fillet.

6. The transmission assembly of claim 1, wherein the personal care appliance further comprises a housing, the transmission assembly further comprising a damper ring for connecting the housing and the drive rod, the damper ring being disposed around the outer circumference of the drive rod.

7. The transmission assembly of claim 6, wherein the shock ring is disposed in the middle of the drive rod; and/or

The damping ring comprises a damping outer ring, a damping inner ring and supporting spokes, wherein the supporting spokes are connected with the damping outer ring and the damping inner ring, the damping inner ring is abutted to the driving rod, and the damping outer ring is abutted to the shell.

8. The transmission assembly of claim 6, wherein the shock ring is fixedly arranged on the shell, and lubricating grease or lubricating fluid is filled between the shock ring and the driving rod;

and/or, the shell is provided with an accommodating groove corresponding to the damping ring, and the side wall of the damping ring is in butt joint with the side wall of the accommodating groove.

9. A personal care appliance, comprising:

a host;

the driving piece is arranged on the host;

a function execution module; and

a transmission assembly as claimed in any one of claims 1 to 8, wherein the mounting portion of the transmission assembly is connected to the output shaft of the driver, and wherein the drive rod of the transmission assembly is connected to the function execution module.

10. The personal care appliance of claim 9, further comprising a first housing, the function execution module, the first housing, and the drive lever being assembled as one body and forming a function head, the host including a second housing detachably connected to the first housing, the drive being provided to the second housing;

and/or the personal care appliance includes a nose hair trimmer, an electric toothbrush, a nail clipper, a eyebrow trimmer, a hair clipper, and an epilator.