CN117064585A - Swing assembly and electric toothbrush - Google Patents

Abstract

The application provides a swinging assembly and an electric toothbrush, wherein the swinging assembly comprises a driving mechanism, an eccentric assembly connected with the driving mechanism and a reciprocating mechanism in swinging fit with the eccentric assembly; the reciprocating mechanism includes: the device comprises an n-shaped frame, a swinging rod connected with the closed end of the n-shaped frame and a connecting rod connected with the swinging rod, wherein a connecting part is arranged at one end of the connecting rod, which is far away from the swinging rod; one end of the swinging rod, which is far away from the n-shaped frame, is provided with a positioning shaft; an eccentric component is sleeved at the open end of the n-shaped frame; the eccentric assembly includes: the rotating wheel is connected with the output shaft of the driving mechanism and eccentrically rotates to be positioned at a first setting position and a second setting position. In the application, the rotating wheel drives the n-shaped frame to swing back and forth in an eccentric rotation mode, so that the whole structure is simple, and the swinging mode is reliable. In addition, the application also comprises an electric toothbrush which is reasonably arranged, is assembled and positioned with the swinging component, effectively reduces the manufacturing cost and the processing difficulty, and prolongs the service life of the electric toothbrush.

Description

Swing assembly and electric toothbrush

Technical Field

The application relates to the technical field of electric toothbrushes, in particular to a swinging assembly and an electric toothbrush.

Background

The electric toothbrush is through the quick rotation or the vibration of motor core, makes the brush head produce high frequency vibration, breaks down toothpaste into the microfoam in the twinkling of an eye, and deep cleaning interdental, simultaneously, the tremble of brush hair can promote the blood circulation in oral cavity, has the massage effect to gum tissue, divides in principle, sways subassembly and electric toothbrush and has two main types: rotation and vibration. The rotating toothbrush has the advantages that the principle is simple, namely, the motor drives the round brush head to rotate, the friction effect is enhanced while the common tooth brushing action is executed, the rotating toothbrush has large strength, the tooth surface is clean, the tooth gap is relatively weak in cleaning, but the abrasion to teeth is large, and long-term use is not recommended.

In the process of cleaning the tooth gaps, the rotating type only cleans the tooth surfaces, but in oral health, deep cleaning of the tooth gaps is particularly important; in the prior art, electric operation for cleaning the slits between teeth cannot be realized, the hand-held electric toothbrush is still adopted to move up and down to clean the slits between teeth, and the phenomenon that foreign matters which are clean with the slits between teeth are deepened in the rotating or vibrating process is not beneficial to cleaning the slits between teeth, so that the operation is very inconvenient, and the user experience effect is poor.

And the swing mode of the existing electric toothbrush is complex in integral structure, a plurality of parts are easy to damage when being assembled and assembled to swing up and down, machining and production difficulties are high while manufacturing cost is increased, the integral layout is unreasonable, occupied space of a swing assembly is large, and the integral use effect and the service life are reduced after any part of the parts is damaged.

Disclosure of Invention

The application provides a swinging assembly and an electric toothbrush, which enable the whole swinging assembly to have a simple structure through an eccentric rotation mode, realize the reliable reciprocating up-and-down swinging of the electric toothbrush, have reasonable whole layout and simple installation and positioning modes, reduce the manufacturing cost and the processing difficulty, and improve the whole experience effect and the service life.

In a first aspect, the present application provides a wobble assembly comprising a drive mechanism, an eccentric assembly coupled to the drive mechanism, and a reciprocator in wobble fit with the eccentric assembly; wherein,

the reciprocating mechanism includes: the device comprises an n-shaped frame, a swinging rod connected with the closed end of the n-shaped frame and a connecting rod connected with the swinging rod, wherein a connecting part is arranged at one end of the connecting rod, which is far away from the swinging rod;

one end of the swinging rod, which is far away from the n-shaped frame, is provided with a positioning shaft;

the open end of the n-shaped frame is sleeved on the outer ring of the eccentric assembly;

the eccentric assembly includes: a rotating wheel which is connected with an output shaft of the driving mechanism and eccentrically rotates at a first setting position and a second setting position;

when the rotating wheel eccentrically rotates to be located at the first set position, the n-shaped frame drives the swinging rod to swing towards a first direction, and the connecting rod faces towards a second direction;

when the rotating wheel eccentrically rotates to be located at the second set position, the n-shaped frame drives the swinging rod to swing towards the second direction, and the connecting rod faces towards the first direction.

According to the application, the rotating wheel is driven to eccentrically rotate by the driving mechanism, the rotating wheel drives the swinging rod to reciprocally swing in the eccentric rotation process, the axis formed by the positioning shaft enables the direction of the connecting rod to be opposite to the swinging direction of the swinging rod, a relatively simple and reliable reciprocal swinging mode is formed, and the connecting part of the connecting rod can be detachably and fixedly connected with the corresponding part. The whole swinging component has fewer parts and stable and reliable reciprocating swinging mode.

In a specific embodiment, the driving mechanism is a driving motor, and the rotating wheel is a circular wheel or an eccentric cam;

when the rotating wheel is a round wheel, an output shaft of the driving motor is eccentrically connected with the round wheel;

when the rotating wheel is an eccentric cam, an output shaft of the driving motor is connected with the circle center of the eccentric cam. Through making the runner eccentric rotation, contact with n shape frame in the rotation in-process, drive n shape frame under eccentric action and swing to realize the motion of whole stable reciprocating swing.

In a specific embodiment, the n-shaped frame has two inner walls facing each other, the runner being spaced from the second inner wall by a gap of 2mm to 4mm when the runner is in contact with the first inner wall. A certain gap exists between the n-shaped frame and the rotating wheel, so that smooth rotation of the rotating wheel is ensured, and the swinging property of the n-shaped frame is stabilized.

In a specific embodiment, the swing rod is connected to a middle position of the closed end of the n-shaped frame, and the connecting rod is fixedly connected to the swing rod. Realize the whole synchronous swing, the locating shaft is as the axle center makes reciprocating swing effect better.

In a second aspect, an electric toothbrush comprises a toothbrush body fitted with a rocking assembly as described in the first aspect; wherein,

the toothbrush body includes: the brush comprises a holding part, a connecting rod part rotationally connected to the holding part, and a brush head assembly arranged at one end of the connecting rod part far away from the holding part;

a telescopic waterproof sleeve is arranged at the joint of the hand holding part and the connecting rod part;

the hand holding part comprises a split upper shell and a split lower shell, and a cavity for accommodating the swinging assembly is formed after the upper shell and the lower shell are mutually buckled;

the lower shell is internally provided with an assembly groove for fixing the driving mechanism, a yielding groove for accommodating the n-shaped frame to swing and an installation cavity for being assembled on the swinging rod;

the positioning shaft penetrates through the swinging rod and is then connected in the mounting cavity;

the upper shell and the lower shell have the same structure;

the connecting part of the connecting rod extends out of the top of the upper shell and the top of the lower shell and is fixedly connected with the connecting rod part in a detachable mode.

According to the application, through reasonably arranging the internal space of the hand holding part, the positioning driving mechanism of the assembly groove, the avoidance rotating wheel of the abdicating groove, the positioning n-shaped frame, the installation cavity, the swinging rod and the assembly positioning shaft are contained, so that the distribution positioning is reasonable, and the occupied space is reduced; and the swing mode has fewer parts, and the upper shell and the lower shell have the same structure, so that the molding process is simplified, the whole manufacturing process is concise, the manufacturing cost of the electric toothbrush is reduced, the higher firm usability is ensured, and the service life of the electric toothbrush is prolonged.

In a specific embodiment, a battery assembly electrically connected to the driving mechanism is assembled in the cavity, and a battery slot for fixing the battery assembly is formed in the lower housing. Providing a reliable power supply.

In a specific embodiment, an arc-shaped limit groove for positioning the output shaft of the driving mechanism is formed in the lower shell. The circumferential rotation performance of the output shaft of the driving mechanism is reliable, and the limiting effect is good.

In a specific embodiment, the lower housing is internally provided with a plurality of reinforcing blocks in opposition. The upper shell and the lower shell are arranged in a mirror image mode, the reinforcing block enhances the overall strength, and the anti-falling performance is improved.

In a specific embodiment, the upper housing and the lower housing are connected by a bolt or a snap. The connection mode is simple and convenient, and has higher connection stability.

In a specific embodiment, when the n-shaped frame drives the swing rod to swing in a first direction,

the connecting rod drives the connecting part and the bristle assembly to swing towards a second direction;

when the n-shaped frame drives the swinging rod to swing towards the second direction,

the connecting rod drives the connecting part and the bristle assembly to swing towards the first direction. Realize the reciprocal swing effect of high frequency, thereby the brush hair subassembly forms the effect of reciprocating motion from top to bottom, carries out the degree of depth to the tooth clearance and cleans, possesses advantage with low costs, the high effect of experiencing.

Drawings

Fig. 1 is a schematic structural diagram of a swing assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of an n-shaped frame according to an embodiment of the present application;

FIG. 3 is a schematic view of an electric toothbrush according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of an electric toothbrush provided in an embodiment of the present application;

fig. 5 is a schematic view illustrating an internal structure of a hand grip according to an embodiment of the present application.

Reference numerals and signs

The device comprises a driving motor-10, a rotating wheel-11, an n-shaped frame-20, a swinging rod-21, a connecting rod-22, a connecting part-23, a positioning shaft-30 and a battery component-40;

the toothbrush comprises a toothbrush body-100, a lower shell-110, a battery groove-111, an assembly groove-112, a yielding groove-113, a mounting cavity-114, a reinforcing block-115, an arc-shaped limiting groove-116, an upper shell-120, a hand holding part-130, a telescopic waterproof sleeve-140, a connecting rod part-150 and a brush head assembly-160.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings.

It is noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should be taken in a general sense as understood by one of ordinary skill in the art to which the present disclosure pertains. The use of the terms "first," "second," and the like in one or more embodiments of the present description does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In order to facilitate understanding of the swing assembly and the electric toothbrush provided by the embodiment of the application, application scenes of the swing assembly and the electric toothbrush are described first, and the swing assembly and the electric toothbrush are mainly used in the technical field of electric toothbrushes. In the process of cleaning the tooth gaps, the rotating type only cleans the tooth surfaces, but in oral health, deep cleaning of the tooth gaps is particularly important; in the prior art, electric operation for cleaning the slits between teeth cannot be realized, the hand-held electric toothbrush is still adopted to move up and down to clean the slits between teeth, and the phenomenon that foreign matters which are clean with the slits between teeth are deepened in the rotating or vibrating process is not beneficial to cleaning the slits between teeth, so that the operation is very inconvenient, and the user experience effect is poor. And the swing mode of the existing electric toothbrush is complex in integral structure, a plurality of parts are easy to damage when being assembled and swing up and down, machining and production difficulties are high while manufacturing cost is increased, the integral layout is unreasonable, occupied space of a swing assembly is large, and the integral service life is reduced after any part of the parts is damaged. In view of the above, the application provides the swinging assembly and the electric toothbrush, and the whole swinging assembly is simple in structure through an eccentric rotation mode, the electric toothbrush can swing up and down in a reciprocating manner reliably, the electric toothbrush is reasonable in whole layout, the installation and positioning modes are concise, the manufacturing cost and the processing difficulty are reduced, and the whole experience effect and the service life are improved.

Referring to fig. 1, fig. 1 is a schematic structural view of a swing assembly. The swing assembly provided by the embodiment of the application comprises: a driving mechanism; the driving mechanism is used as a main driving piece in the application, and after the driving mechanism is fixed, an output shaft of the driving mechanism drives the eccentric assembly to perform eccentric operation. Thereby achieving the effect of realizing reciprocating swing under the action of the driving mechanism.

Specifically, the driving mechanism is a driving motor 10, and when the driving mechanism is applied to the electric toothbrush, the rotating speed of the driving motor 10 is between 500r/min and 1000 r/min. And in other embodiments of the present application, the rotation speed of the driving motor 10 can be adjusted, and the rotation speed of the driving motor 10 is selected through the speed adjusting knob, so that a higher experience effect is realized when the electric toothbrush is applied.

The swinging assembly also comprises an eccentric assembly connected with the driving mechanism and a reciprocating mechanism in swinging fit with the eccentric assembly; in the swing assembly of the application, the eccentric assembly is driven by the driving motor 10 to generate eccentric rotation, and then the reciprocating mechanism is driven to do reciprocating swing under the action of the eccentric rotation. Specifically, the eccentric assembly includes: the turning wheel 11, which is connected to the output shaft of the drive mechanism and is eccentrically turned in a first setting position and a second setting position. The wheel 11 may be a circular wheel or an eccentric cam. When the rotating wheel 11 is a round wheel body, the output shaft of the driving motor 10 is eccentrically connected with the rotating wheel 11, so that the rotating wheel 11 is driven to eccentrically rotate when the output shaft of the driving motor 10 circumferentially rotates, and the effect of driving the reciprocating mechanism to reciprocate is achieved. When the rotating wheel 11 is an eccentric cam, the output shaft of the driving motor 10 is connected with the circle center of the rotating wheel 11, and when the output shaft of the driving motor 10 rotates circumferentially, the eccentric protruding part of the rotating wheel 11 drives the reciprocating mechanism to swing reciprocally.

As shown in connection with fig. 2, the reciprocator comprises an n-shaped frame 20; the open end of the n-shaped frame 20 is sleeved on the outer ring of the eccentric assembly. Thus, it can be seen that the opposite inner walls of the n-shaped frame 20 are in contact with the runner 11, whether the runner 11 is a circular wheel or an eccentric cam. The n-shaped frame 20 has two inner walls facing each other, and when the runner 11 contacts the first inner wall, the runner 11 is spaced from the second inner wall by a gap of 2mm to 4 mm. In the embodiment of the application, the preferable gap is 3mm, so that a certain gap exists between the n-shaped frame 20 and the rotating wheel 11, smooth rotation of the rotating wheel 11 is ensured, and the swinging property of the n-shaped frame 20 is stabilized. By eccentrically rotating the rotating wheel 11, the rotating wheel is contacted with the n-shaped frame 20 in the rotating process, and the n-shaped frame 20 is driven to swing under the eccentric action, so that the overall stable reciprocating swing motion is realized.

The reciprocating mechanism further comprises a swinging rod 21 connected with the closed end of the n-shaped frame 20 and a connecting rod 22 connected with the swinging rod 21, the swinging rod 21 is connected with the middle position of the closed end of the n-shaped frame 20, and one end of the swinging rod 21 far away from the n-shaped frame 20 is provided with a positioning shaft 30; the positioning shaft 30 serves as an axis of the reciprocating swing. The connecting rod 22 is fixedly connected with the swinging rod 21 in a welding mode. The whole synchronous swing is realized, and the positioning shaft 30 is used as the axle center to ensure better reciprocating swing effect. The end of the connecting rod 22 away from the swinging rod 21 is provided with a connecting part 23; the detachable fixed connection of other components of the electric toothbrush can be realized by means of the provided connection 23.

As can be seen from the above structure, when the rotating wheel 11 eccentrically rotates to be located at the first set position, the n-shaped frame 20 drives the swinging rod 21 to swing in the first direction, and the connecting rod 22 faces the second direction; illustratively, when the first direction is defined as upward and the second direction is defined as downward, the eccentric rotating wheel 11 swings upward along with the swinging rod 21 when being driven in contact with the upward inner wall of the n-shaped frame 20, and the connecting rod 22 far from the swinging rod 21 swings downward under the action of the positioning shaft 30.

Similarly, when the rotating wheel 11 eccentrically rotates to be located at the second setting position, the n-shaped frame 20 drives the swinging rod 21 to swing in the second direction, and the connecting rod 22 faces the first direction. When the eccentric rotating wheel 11 is driven in contact with the downward inner wall of the n-shaped frame 20, the swinging rod 21 swings downwards, and the connecting rod 22 far away from the swinging rod 21 swings upwards under the action of the positioning shaft 30.

In the application, the rotating wheel 11 is driven by the driving mechanism to eccentrically rotate, the rotating wheel 11 drives the swinging rod 21 to reciprocally swing in the eccentric rotation process, the axis formed by the positioning shaft 30 enables the direction of the connecting rod 22 to be opposite to the swinging direction of the swinging rod 21, a relatively simple and reliable reciprocal swinging mode is formed, and the connecting part 23 of the connecting rod 22 can be detachably and fixedly connected with a corresponding part. The whole swinging component has fewer parts and stable and reliable reciprocating swinging mode.

In addition, as shown in fig. 3, there is provided an electric toothbrush comprising a toothbrush body 100 equipped with a swing assembly. The toothbrush body 100 has the effect of reciprocating up and down, so that the teeth gaps are deeply cleaned, the operation is simple and convenient, the user experience is enhanced, and the teeth are ensured to be cleaned comprehensively

Specifically, the toothbrush body 100 includes: the brush head assembly comprises a holding part 130, a connecting rod part 150 rotatably connected to the holding part 130, and a brush head assembly 160 arranged at one end of the connecting rod part 150 far away from the holding part 130. The brush head assembly 160 in embodiments of the present application may be conventional bristles or powered bristles. When the bristle assembly is a common bristle, the bristle assembly and the connecting rod portion 150 are integrally formed, after the bristle assembly is used for a long time to generate the bristle, the bristle assembly and the connecting rod portion 150 can be directly replaced, the connecting portion 23 of the connecting rod 22 is detached in a replacing mode, and the connecting portion 23 can be in threaded connection. When the brush hair component is a power brush hair, the brush hair component comprises a vibration module and brush hair, the toothpaste on the brush hair is decomposed into fine foam under the action of the vibration module, tooth gaps are deeply cleaned, and meanwhile, the vibration of the brush hair can promote the blood circulation of an oral cavity and has a massaging effect on gum tissues. The bristles may be detachably replaced. Therefore, the toothbrush body 100 according to the present application is designed to meet the market demands of low-cost and medium-cost electric toothbrushes according to different market demands, and will not be described herein in detail.

In order to enhance the waterproof performance, a stretchable waterproof jacket 140 is provided at the junction between the grip 130 and the link 150. The connecting rod portion 150 and the hand holding portion 130 are arranged in a split mode, the hand holding portion 130 is provided with a swinging assembly, and eccentric reciprocating swinging generated by the swinging assembly drives the connecting rod portion 150 to reciprocate up and down, so that the connecting rod portion 150 drives the bristle assembly to swing up and down, and deep cleaning of tooth gaps is guaranteed. The telescopic waterproof sleeve 140 arranged at the joint of the hand holding part 130 and the connecting rod part 150 can effectively avoid the damage of the swing assembly caused by the wash water entering the hand holding part 130 when the connecting rod part 150 swings. The telescopic waterproof sleeve 140 is a conical rubber sleeve body, and a plurality of folds are arranged on the conical rubber sleeve body. Through with the open end suit of flexible waterproof jacket 140 on holding portion 130, the awl end of flexible waterproof jacket 140 then closely overlaps on connecting rod portion 150 to make cylindrical connecting rod portion 150 when taking place the swing phenomenon, the fold on the flexible waterproof jacket 140 corresponds the flexible, forms sealedly to connecting rod portion 150 and holding portion 130 all the time, effectively prevents to hold the inside swing subassembly of portion 130 and cause the injury.

The hand holding part 130 comprises a split upper shell 120 and a split lower shell 110, and the upper shell 120 and the lower shell 110 are mutually buckled to form a cavity for accommodating the swinging assembly; specifically, the upper case 120 and the lower case 110 are both molded by injection molding, and knock-out holes may be reserved on the upper case 120 or the lower case 110 for installing a start switch for connecting the swing assembly. The inner structures of the upper and lower cases 120 and 110 are the same, so that the reduced mold opening process realizes higher versatility, and shows reasonable layout and low cost characteristics.

In combination with the description of fig. 4 and 5, when the swing assembly is installed and reasonably positioned in the cavity, the present application only details the inner space of the lower housing 110, the upper housing 120 and the lower housing 110 are disposed in mirror images, and the upper housing 120 and the lower housing 110 are connected by bolts or buckles, so as to realize a detachable stable connection relationship, thereby facilitating maintenance and replacement after the damage of the internal parts. It should be understood that the upper housing 120 and the lower housing 110 have the same structure, but in terms of bolting or snapping, the openings or snapping are arranged to cooperate with each other, which are well known to those skilled in the art, and will not be described herein in detail.

The swing assembly of the application has fewer parts and reasonable installation and positioning. Specifically, the lower case 110 is internally provided with an assembly groove 112 for fixing the driving mechanism, a relief groove 113 for accommodating the swing of the n-shaped bracket 20, and an installation cavity 114 for assembly on the swing lever 21. The fitting groove 112 is used to fix the driving motor 10 so that less vibration is generated during the starting of the driving motor 10. Meanwhile, in order to secure rotational stability of the output shaft of the driving motor 10 and reduce vibration brought during rotation, an arc-shaped limit groove 116 for positioning the output shaft of the driving mechanism is formed in the inside of the lower housing 110. The circumferential rotation performance of the output shaft of the driving mechanism is reliable, and the limiting effect is good.

The relief groove 113 is formed to avoid the n-shaped frame 20 to swing reciprocally, and the installation cavity 114 is formed to avoid the swing rod 21 to swing similarly. Thereby realizing the purposes that the assembly groove 112 positions the driving motor 10, the abdication groove 113 positions the rotating wheel 11, the n-shaped frame 20 and the installation cavity 114 to accommodate the swinging rod 21 and the assembly positioning shaft 30, forming reasonable distribution and positioning, reducing occupied space and enhancing the overall structural strength.

The positioning shaft 30 penetrates through the swinging rod 21 and is connected in the mounting cavity 114; the positioning shaft 30 can be rotationally connected with the swinging rod 21 and fixedly connected with the lower shell 110 to form axial rotation. Or, the positioning shaft 30 is fixedly connected with the swing rod 21, and is rotatably connected with the lower housing 110 to form an axial rotation.

Meanwhile, in order to secure power supply, a battery assembly 40 electrically connected to the driving mechanism is mounted inside the cavity, and a battery groove 111 for fixing the battery assembly 40 is opened inside the lower case 110. Providing a reliable power supply. And a charging socket to which the battery pack 40 is connected is mounted at the grip 130, thereby securing the use effect.

The connecting portion 23 of the connecting rod 22 in the present application is detachably and fixedly connected to the connecting rod portion 150 after extending out of the top of the upper and lower cases 120 and 110. The detachable fixed connection mode can adopt threaded connection or buckle connection, thereby ensuring convenient replacement and maintenance. Meanwhile, in order to enhance the overall strength of the toothbrush body, a plurality of reinforcing blocks 115 are oppositely provided inside the lower case 110. The upper and lower cases 110 and 120 are mirror images of each other, and the reinforcing block 115 enhances the overall strength and improves the anti-falling performance.

Therefore, when the n-shaped frame 20 drives the swinging rod 21 to swing towards the first direction, the connecting rod 22 drives the connecting rod part 150 and the bristle assembly to swing towards the second direction; for example, when the first direction is defined as upward and the second direction is defined as downward, the n-shaped frame 20 moves upward under the eccentric driving, and then drives the swinging rod 21 to swing upward, and the connecting rod 22 drives the connecting rod portion 150 and the bristle assembly to swing downward in a state that the positioning shaft 30 is used as the axis.

When the n-shaped frame 20 drives the swinging rod 21 to swing towards the second direction, the connecting rod 22 drives the connecting part 23 and the bristle assembly to swing towards the first direction. Under the eccentric driving action, the n-shaped frame 20 moves downwards, and then drives the swinging rod 21 to swing downwards, so that the connecting rod 22 drives the connecting rod part 150 and the bristle assembly to swing upwards under the condition that the positioning shaft 30 is used as the axis. Thereby realize the reciprocal swing effect of high frequency, thereby the brush hair subassembly forms the effect of reciprocating motion from top to bottom, carries out the deep cleaning to the tooth gap, possesses low cost, high advantage of experiencing the effect.

According to the application, through reasonably arranging the internal space of the hand holding part 130, the assembly groove 112 positions the driving mechanism, the yielding groove 113 avoids the rotating wheel 11 and the positioning n-shaped frame 20, the installation cavity 114 accommodates the swinging rod 21 and the assembly positioning shaft 30, so that the distribution and the positioning are reasonable, and the occupied space is reduced; and the swing mode has fewer parts, and the upper shell 120 and the lower shell 110 have the same structure, so that the molding process is simplified, the whole manufacturing process is concise, the manufacturing cost of the electric toothbrush is reduced, the higher firm usability is ensured, and the service life of the electric toothbrush is prolonged.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present disclosure, the steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments of the present description as above, which are not provided in details for the sake of brevity.

Additionally, well-known power/ground connections to integrated circuits and other components may or may not be shown in the drawings provided to simplify the illustration and discussion, and so as not to obscure one or more embodiments of the present description. Furthermore, the apparatus may be shown in block diagram form in order to avoid obscuring the one or more embodiments of the present description, and also in view of the fact that specifics with respect to implementation of such block diagram apparatus are highly dependent upon the platform within which the one or more embodiments of the present description are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuit arrangements) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that one or more embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

The present disclosure is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments of the disclosure, are therefore intended to be included within the scope of the disclosure.

The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. A wobble assembly, comprising: the device comprises a driving mechanism, an eccentric assembly connected with the driving mechanism and a reciprocating mechanism in swinging fit with the eccentric assembly; wherein,

the reciprocating mechanism includes: the device comprises an n-shaped frame, a swinging rod connected with the closed end of the n-shaped frame and a connecting rod connected with the swinging rod, wherein a connecting part is arranged at one end of the connecting rod, which is far away from the swinging rod;

one end of the swinging rod, which is far away from the n-shaped frame, is provided with a positioning shaft;

the open end of the n-shaped frame is sleeved on the outer ring of the eccentric assembly;

the eccentric assembly includes: a rotating wheel which is connected with an output shaft of the driving mechanism and eccentrically rotates at a first setting position and a second setting position;

when the rotating wheel eccentrically rotates to be located at the first set position, the n-shaped frame drives the swinging rod to swing towards a first direction, and the connecting rod faces towards a second direction;

when the rotating wheel eccentrically rotates to be located at the second set position, the n-shaped frame drives the swinging rod to swing towards the second direction, and the connecting rod faces towards the first direction.

2. The wobble assembly of claim 1, wherein the drive mechanism is a drive motor and the runner is a circular wheel or an eccentric cam;

when the rotating wheel is a round wheel, an output shaft of the driving motor is eccentrically connected with the round wheel;

when the rotating wheel is an eccentric cam, an output shaft of the driving motor is connected with the circle center of the eccentric cam.

3. The wobble assembly of claim 2, wherein the n-shaped frame has two inner walls facing each other, the runner being spaced from the second inner wall by a gap of 2mm to 4mm when the runner is in contact with the first inner wall.

4. The swing assembly of claim 1, wherein said swing rod is connected to an intermediate location of a closed end of said n-shaped frame and said connecting rod is fixedly connected to said swing rod.

5. An electric toothbrush comprising a toothbrush body fitted with a rocking assembly according to any one of claims 1 to 4; wherein,

the toothbrush body includes: the brush comprises a holding part, a connecting rod part rotationally connected to the holding part, and a brush head assembly arranged at one end of the connecting rod part far away from the holding part;

a telescopic waterproof sleeve is arranged at the joint of the hand holding part and the connecting rod part;

the hand holding part comprises a split upper shell and a split lower shell, and a cavity for accommodating the swinging assembly is formed after the upper shell and the lower shell are mutually buckled;

the lower shell is internally provided with an assembly groove for fixing the driving mechanism, a yielding groove for accommodating the n-shaped frame to swing and an installation cavity for being assembled on the swinging rod;

the positioning shaft penetrates through the swinging rod and is then connected in the mounting cavity;

the upper shell and the lower shell have the same structure;

the connecting part of the connecting rod extends out of the top of the upper shell and the top of the lower shell and is fixedly connected with the connecting rod part in a detachable mode.

6. The electric toothbrush according to claim 5, wherein a battery pack electrically connected to the driving mechanism is mounted in the cavity, and a battery groove for fixing the battery pack is formed in the lower case.

7. The electric toothbrush according to claim 5, wherein the lower housing is internally provided with an arcuate limit slot for locating an output shaft of the drive mechanism.

8. The electric toothbrush according to claim 5, wherein the lower housing is provided with a plurality of reinforcing blocks oppositely disposed inside.

9. The electric toothbrush of claim 5, wherein the upper housing and the lower housing are connected by a bolt connection or a snap connection.

10. The electric toothbrush according to claim 5, wherein when the n-shaped frame swings the swing lever in a first direction,

the connecting rod drives the connecting rod part and the bristle assembly to swing towards a second direction;

when the n-shaped frame drives the swinging rod to swing towards the second direction,

the connecting rod drives the connecting rod part and the bristle assembly to swing towards the first direction.