CN211433435U - Electric toothbrush without handle - Google Patents

Abstract

The utility model belongs to the field of electric toothbrushes, in particular to a handle-free electric toothbrush, which comprises a brush head and a power device, wherein the position of the brush head can be changed by a tongue in an oral cavity, the power device drives the brush head to carry out tooth brushing motion, the power device comprises a driving motor, and the driving motor is hermetically arranged in the brush head and is in driving connection with the brush head; the driving motor is a vibration motor or a rotating motor; the power device also comprises a power line, one end of the power line is connected with the driving motor arranged in the brush head, the other end of the power line is provided with a power plug, and the power plug is detachably connected with an external power supply. The utility model discloses a no handle electric toothbrush is by a power device that can be in the oral cavity by the brush head of tongue relocation and drive brush head implementation brushing motion, and the user is convenient for put the toothbrush into the mouth, need not hand-hold toothbrush brush holder during brushing teeth, reduces the tired degree when brushing teeth.

Description

Electric toothbrush without handle

Technical Field

The utility model belongs to the toothbrush field, concretely relates to electric toothbrush.

Background

The toothbrush is an oral cavity protective article, and toothpaste is coated on a brush, and then all parts of teeth are repeatedly brushed. The electric toothbrush makes the brush head generate high-frequency vibration through the quick rotation or vibration of the motor core, instantly decomposes the toothpaste into fine foam and deeply cleans teeth slits, and meanwhile, the vibration of the bristles can promote the blood circulation of the oral cavity and has a massage effect on gum tissues.

The existing electric toothbrushes on the market at present comprise pulse water washing, sound wave, ultrasonic wave and electric spraying toothbrushes which are all toothbrushes with handles. In addition, the conventional electric toothbrush is provided with a driving device in a traditional toothbrush mode, and meanwhile, each tooth needs to be cleaned in a way of holding the toothbrush by hand, so that the problems of long cleaning time, uneven stress on the teeth, inconvenience in use and fatigue of a user during tooth brushing are caused.

Later, there was a tooth cleaner which did not have a handle, but was constructed such that a tooth cover structure is integrally fitted over the teeth, and which brushed teeth by vibrating up and down. The device is large in size, and because the teeth are different in shape and can only vibrate on the teeth in the oral cavity, the teeth cannot be controlled by the tongue to move transversely in the oral cavity, the teeth are easy to be stressed unevenly, dead corners exist in cleaning, the teeth are easy to hurt, and the tooth brushing experience is poor.

SUMMERY OF THE UTILITY MODEL

Based on this, to prior art, the utility model aims to solve the technical problem that a no handle electric toothbrush who facilitates use is provided.

The technical scheme of the utility model is that:

a handle-less electric toothbrush includes a brush head which can be changed in position by the tongue in the mouth and a power device for driving the brush head to perform a brushing motion.

Preferably, the power device comprises a drive motor, and the drive motor is hermetically arranged in the brush head and is in drive connection with the brush head.

Preferably, the driving motor is a vibration motor or a rotating motor.

Preferably, the power device further comprises a power line, one end of the power line is connected with the driving motor arranged in the brush head, and the other end of the power line is connected with the power supply.

Above-mentioned scheme is preferred, and the power sets up with the brush head separately, and the power cord can be dismantled with the power and be connected.

Preferably, the power supply is a charger or a battery or a power adapter for converting an ac power supply into a low-voltage dc power supply.

Above-mentioned scheme is preferred, is provided with motor switch and speed governing switch on the electric wire.

Above-mentioned scheme is preferred, and the brush head includes brush body and brush hair, and driving motor is provided with a sealed shell, and brush body detachably cover is established on the sealed shell of driving motor.

Preferably, the brush body has a port formed at a side thereof, the port is disposed at the power input side, and a sealing plug is disposed thereon, the sealing plug having a through hole formed therein.

Preferably, the side part of the vibration motor is further provided with a supporting piece, one end of the supporting piece is supported on the side surface of the vibration motor, and the other end of the supporting piece extends out of the through hole and is connected with the power line 1; the power cord cooperating with the through hole forms a sealed joint, a slot is formed in the joint, and the end side of the support piece extending out of the interface is inserted into the slot and forms interference fit with the slot.

Preferably, the power device comprises a vibration motor and a power line, the vibration motor is arranged in the brush head, and the power line is arranged outside the brush head.

Preferably, the power device comprises a driving motor which is arranged in the oral cavity when the power device and the brush head are arranged together to work, and a power line and a power plug which are arranged outside the oral cavity and are separated from the brush head.

Preferably, the power device comprises a driving motor which is arranged in the oral cavity when the power device and the brush head are arranged together to work, a power source which is arranged outside the oral cavity and separated from the brush head, and a power wire connected between the power source and the motor.

Preferably, the power device comprises an electrode which is arranged with the brush head and is positioned in the oral cavity when working, a low-voltage power adapter which is arranged with the brush head and is positioned outside the oral cavity when working, and a power line connected between the low-voltage power adapter and the electrode.

Compared with the prior art, the utility model discloses a no handle electric toothbrush can brush any one position of tooth when clean tooth, consequently can reach the purpose of cleaning tooth comprehensively just the utility model discloses a no handle electric toothbrush can be implemented the power device of the motion of brushing teeth by the brush head and the drive brush head of tongue relocation position in the oral cavity by one, the user is convenient for put the toothbrush into the mouth, needn't hand-held toothbrush brush holder when brushing teeth, avoid because the hand-held toothbrush dynamics is inhomogeneous, reduce the tired degree when brushing teeth simultaneously, avoid the injury to tooth and gum, brush the head can be controlled by the tongue in the oral cavity and remove in the mouth in addition, brush the head and set up two-sided brush hair, improve the efficiency of brushing teeth, also clean easily. The toothbrush without the handle can be externally connected with a direct current power supply, the power supply can be a portable power supply used in daily life, and the toothbrush is convenient for a user to carry, and can also be externally connected with an alternating current power supply, so that the toothbrush is convenient for the user to use at home. In addition, the toothbrush without the handle can be further provided with a built-in power supply to provide power for the driving device of the toothbrush without the handle, and a user only needs to put the toothbrush without the handle with the toothpaste into the mouth when using the toothbrush without hindering the user from carrying out other activities, so that the user who brushes the teeth early can feel more relaxed tooth brushing experience.

Drawings

In order to make the content of the present invention more clearly understood, the following description of the present invention in further detail is made according to the embodiments of the present invention with reference to the accompanying drawings, but the exemplary embodiments of the present invention and the description thereof are used for explaining the present invention, and do not constitute an undue limitation to the present invention, wherein:

FIG. 1 is a schematic view showing the entire structure of an embodiment 1 of the electric toothbrush of the present invention;

FIG. 2 is a transverse sectional view of a brush head portion according to embodiment 1 of the present invention;

FIG. 3 is a perspective view of an embodiment of a brush head according to embodiment 1 of the present invention;

fig. 4 is a transverse cross-sectional view of a brush head (with the internal motor and associated support seal structure removed) according to example 1 of the present invention;

fig. 5 is a schematic perspective view of an embodiment of a vibration motor according to embodiment 1 of the present invention;

FIG. 6 is a schematic view of the internal structure of the vibration motor shown in FIG. 5 disposed in the brush head according to the present invention;

fig. 7 is an exploded view of embodiment 1 of the present invention;

fig. 8 is a schematic view of the embodiment 2 of the present invention using a charger as a power source;

fig. 9 is a schematic view of embodiment 3 with a power adapter according to the present invention;

fig. 10 is a schematic view of an embodiment of the present invention in which a power line is provided with a locking plate according to embodiment 1;

fig. 11 is a schematic structural view of an embodiment 4 of a rotating electrical machine according to the present invention;

FIG. 12 is a schematic view of the internal structure of the brush head of the present invention with a rotating motor disposed therein;

FIG. 13 is a transverse sectional view of the brush head of the present invention with a rotary motor disposed therein;

FIG. 14 is a cross-sectional view of the brush head of the present invention with a rotating motor disposed therein;

FIG. 15 shows an embodiment 5 of the present invention in which the motor is not changed to the oscillating electrode;

the reference numbers in the figures denote:

1-a brush head;

11-bristles; 12-a brush body; 13-a cavity; 131-brush body port; 132-brush body port sealing plug; 1321-brush body through hole;

2-a power plant;

21 driving a motor; 211-a vibration motor; 212-a rotating electrical machine; 23-sealing the housing; 24-waterproof press sleeve; 251-motor upper mounting frame; 252-a motor lower mounting rack; 253-a support; 2530-wiring holes; 26-waterproof adhesive tape; a motor lead 27;

221-power line sealing joint; 2211-slot of power line sealing joint;

23-a sealing ring;

231-a first sealing ring; 232-a second sealing ring;

3-a power line; a controller 312; 31-a motor switch; 32-a speed regulating switch; a chucking plate 33; a power cord sealing fitting 34; a power cord plug 35; plug 36

4-charger baby;

5-a power adapter;

a 51 transformation circuit; 512-a primary winding; 51a primary winding first terminal;

513 — a secondary winding; 513 a-secondary winding first terminal; 513 b-secondary winding second terminal; 53-feedback control circuit; 54-output voltage controller; 213-oscillating electrode.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, 8, 9, 11 and 15, the electric toothbrush of the present invention has no handle, and the electric toothbrush has a simple structure including a brush head capable of being changed in position by the tongue in the oral cavity and a power device for driving the brush head to perform the brushing motion.

Because the utility model cancels the brush holder and the operation of holding the brush holder by hands, the driving motor is directly arranged in the brush head, and the brush head is driven by putting the brush head into the oral cavity during tooth brushing. The position of the brush head can be changed through the tongue in the oral cavity, on one hand, the toothbrush can continuously have the function of cleaning teeth, and on the other hand, a user can free hands during tooth brushing without holding the toothbrush handle with hands, so that the toothbrush is more convenient, and the fatigue strength during tooth brushing is reduced. In addition, except that the driving motor provides power, the user can also utilize the tongue to enable the brush head to change the position in the oral cavity, and the position of the brush head and the tooth brushing time are controlled according to the experience of the user, so that the discomfort that the brush handle needs to move back and forth violently in the oral cavity of the user is avoided, and the damage to the teeth of the human body due to improper tooth brushing operation is also avoided. Meanwhile, the brush head can be controlled by the tongue, so that the tooth brushing experience of people is comfortable, the fun is increased, and the toothbrush is particularly suitable for children who do not want to brush teeth and are not easy to brush teeth.

The following description of the invention is given by way of exemplary embodiments.

Example 1

As shown in figures 1-7, the electric toothbrush of this embodiment comprises a brush head 1 which can be changed in position by the tongue in the mouth and a power unit 2 which drives the brush head to perform a brushing motion.

The power device 2 comprises a driving motor 21, in this embodiment a vibration motor 211, hermetically disposed in the inner cavity of the brush head, and for supplying power to the vibration motor, the power device further comprises a power line connected to the driving motor, wherein one end of the power line is connected to the vibration motor 211, and the other end of the power line is connected to a power source 22 (not shown in the example of fig. 1). The specific power supply can be a dry battery, a charger or a household power supply. For convenient control, set up switch and speed governing button on the power cord and need brush teeth when, with the power cord connection power, control vibrating motor 211 starts, brush head 2 begins the slight vibration in the oral cavity and realizes brushing teeth, and simultaneously, this application still creatively designs it to can also make the brush head can the shift position in the oral cavity with the help of the tongue, perhaps through the intraoral position of power cord adjustment brush head, realizes the complete abundant cleanness of tooth.

The power cord provides the "route" that electric power passed through for whole no handle toothbrush, adopts power cord 1 to compare to the brush holder of having the handle toothbrush thin, and during the user used puts the no handle toothbrush into the mouth, can also utilize the power cord to assist the user and control the brush head, can prevent that the user from swallowing the mistake pharynx when brushing teeth simultaneously.

Further, as shown in fig. 1, the brush head 2 includes bristles 11 and a brush body 12, and the driving motor 11 is hermetically disposed in a cavity 13 of the brush body, wherein:

brush head 1: in order to better clean teeth in all directions by the brush head, the bristles are preferably arranged on the whole outer surface of the brush body, and the bristles are radially arranged on the outer peripheral surface. Specific brush hair arrangement mode, brush hair material, brush hair shape, brush hair size can select to promote oral cavity comfort level and be favorable to brushing the tooth again according to user and the in-service use demand of difference, the utility model discloses do not injecing this, as long as can that technical staff in the field can realize.

The brush body 12: the shape of the brush body can be similar to a spherical capsule shape, also can be similar to a long capsule shape, and any other shapes which can improve the experience and are beneficial to arranging the motor. The brush body is similar to a capsule shape, so that the brush body can be conveniently placed in an oral cavity, a user can conveniently move the toothbrush by using the tongue under the condition of ensuring the safety inside the oral cavity, and the damage of the brush hair close to one end of the teeth to the teeth and the gum can be avoided. Facilitating more comprehensive cleaning of teeth.

The brush body and the bristles are preferably non-toxic and have some flexibility and elasticity, such as non-toxic silicone material, as they need to be placed in the mouth. The electric toothbrush without handle provided by the utility model needs to put the brush body into the oral cavity when in use, and the use of the nontoxic silica gel material can provide better use safety and help the teeth and the oral cavity to be prevented from being injured.

The problem that the brush head can not be shared by a plurality of people but the motor can be reused is considered in the embodiment, in order to realize the reuse of the motor and save the cost, the utility model discloses ingenious design the brush head. As shown in figures 2 and 3, the brush head and the shell 23 of the internal sealing motor form a detachable structure, when the original used brush head needs to be replaced and detached, the original used brush head is detached from the brush body and replaced by a new brush head, which is very simple and convenient.

Further preferably, the driving motor can be a waterproof motor directly, or the motor and the wire are directly assembled together, or the tail part of the motor is soldered.

For further promoting brush head sealing effect, supporting effect, the electric connection effect, this embodiment is optimized as follows:

the brush body has one closed end and the other end with one port 131 for the motor to be inserted, and the port is set in the power source side and has sealed brush body port plug 132 with one through hole 1321 for installing power source wire and fastener.

Preferably, the brush body defines an interior chamber 13, and the interior chamber motor 211 is mounted within the brush body interior chamber on a motor mounting bracket comprising an upper mounting bracket 251 and a lower mounting bracket 252 which snap together. In addition, the side of the motor is further provided with a support 253, one end of which is supported on the side of the motor, and the other end of which extends out of the through hole 1321 for connecting with the power line 1. The power cord, which mates with the through hole 1321, forms a sealed connector 211, which preferably has a slot 2111 formed therein, so that the end side of the support member 27 extending out of the interface is inserted into the slot and forms an interference fit therewith, to avoid a void at the interface of the power cord and the brush body, into which saliva can short-circuit the motor. In addition, to facilitate wiring, a wiring hole 2530 is formed in the supporting member 253, and a power cord passes through the wiring hole to be electrically connected to the motor. Preferably, this embodiment support piece selects a reducing cavity metal post, and the major diameter side matches with the brush body internal diameter, and minor diameter side matches with power cord sealing joint, and the cavity forms the walking hole that link up in the post, and the power cord passes through cylindrical cavity and is connected with the motor.

Optionally, the brush port sealing plug 132 and the power line sealing connector 211 may be separately inserted and matched together, or may be integrally formed by injection molding.

In order to further prevent saliva from entering the brush body cavity for accommodating the motor when the brush head brushes teeth in the oral cavity, a first sealing ring 231 is arranged between the outer circumferential surface of the brush head body sealing plug 132 and the brush body through hole 1321 to be used as a first-stage seal, a second sealing ring 232 is arranged between the inner circumferential surface of the brush body port sealing plug 132 and the outer circumferential surface of the support member 27, and the second sealing ring 232 is tightly matched with the outer circumferential surface of the support member to form a second-stage seal.

So, during the use, when with sealed end cap and power cord sealing joint sealing connection, the power cord electricity connects and is connected with the motor electricity. Therefore, the phenomenon that saliva in the oral cavity causes short circuit to a driving motor in the toothbrush when teeth are brushed can be avoided, the use of the whole toothbrush is influenced, and the safety of a user is ensured.

Further, it can be optimized that three seals are formed in the inner cavity of the brush head body of the fixed motor, according to the above sealing sequence, a sealing shell 23 serving as the third seal is arranged from outside to inside, part of the sealing shell forms a third-stage seal, inwards, a fourth-stage seal is formed for a waterproof pressing sleeve 24, inwards, and a waterproof adhesive tape 26 is arranged between the matching surfaces of the upper frame and the lower frame of the fixed driving motor to form a fifth-stage seal. This five-stage seal has greatly avoided the motor when the oral cavity is used in the oral cavity saliva get into the internal portion of brush and cause the harm to driving motor or circuit, improves the use the utility model discloses the security of brush head. The motor frame comprises an upper part and a lower part, namely an upper frame 251 and a lower frame 252, which are buckled together and arranged in a waterproof pressing sleeve 24, then arranged in a motor sealing shell 23 and finally integrally arranged in the brush head. Thus achieving multi-layer sealing protection.

Preferably, the vibration motor power supply voltage is 1V to 6V, more preferably 2V to 5V, and still more preferably 3.7V.

Preferably, the power cord 1 is provided with a controller 312, and the controller has a motor switch 31 and a speed regulating switch 32. Set up motor switch 31 on the power cord 1, can control whether the motor works in the oral cavity, convenient to use person is to the start-up control of motor, and different crowds can carry out driving motor's frequency of vibration according to the self condition, provide better experience of brushing teeth and feel. Preferably, as shown in fig. 10, the power supply may further include a clamping plate 33, so as to facilitate hand-holding, and adjust the actual working length of the power line to prevent the whole power line from vibrating or rotating along with the motor.

When teeth are brushed, the driving motor 211 is started, as shown in fig. 1, the brush head 1 is driven to slightly vibrate in the oral cavity, and the position of the brush head in the oral cavity can be moved by the tongue, or the position of the brush head in the oral cavity can be adjusted by a power line, so that teeth at various positions can be cleaned.

Example 2:

as shown in fig. 8, the driving motor is also a vibration motor 211, and the power device is matched with a charger baby 4, i.e. the power line is connected with the charger baby. Under the condition, the power supply is particularly suitable for occasions where the power supply is inconvenient to use.

Of course, because the voltage and the current needed by the person during tooth brushing are small, the charger baby of the embodiment has a low voltage and a small current value. The specific adapter is the prior art in the field, such as a mobile phone charger, and how to obtain low voltage and low current is well known to those skilled in the art and is not described herein. When teeth are brushed, the driving motor 211 is started, as shown in fig. 1, the brush head 1 is driven to slightly vibrate in the oral cavity, and the position of the brush head in the oral cavity can be moved by the tongue, or the position of the brush head in the oral cavity can be adjusted by a power line, so that teeth at various positions can be cleaned.

Example 3:

in addition to these self-contained power supplies, it is also possible to provide a power plug with a power adapter 5, as shown in fig. 9, i.e. the power cord is connected to the power supply via the adapter. Since the voltage and current required by a person during brushing are small, the present embodiment can convert a higher voltage into a lower voltage and a lower current value by using an adapter. The specific adapter is the prior art in the field, such as a power adapter of a mobile phone, and how to obtain a low voltage and a low current is well known to those skilled in the art and will not be described herein. When teeth are brushed, the driving motor 11 is started, as shown in fig. 1, the brush head 2 is driven to slightly vibrate in the oral cavity, and the position of the brush head in the oral cavity can be moved by the tongue, or the position of the brush head in the oral cavity is adjusted by the power cord, so that teeth at various positions can be cleaned.

Other components can be designed in the same structural shape as in embodiment 1.

Therefore, a user can simply insert the power plug into the electric power adapting socket, and the adapter converts alternating current into low-voltage direct current, so that power supply is easily realized. Therefore, the toothbrush can be conveniently used in families or hotels by utilizing the power adapter, and the range of the using environment of the handle-free electric toothbrush of the utility model is enlarged. In conclusion, the power supply can meet the use requirements of users under different use environments.

The supply modes of the power supplies can be correspondingly assembled according to the use occasions and the requirements of users.

Example 4:

the utility model discloses a vibrating motor also can change into the rotating electrical machines.

When the rotating motor 212 shown in fig. 11-14 is installed in the brush head body, the end of the rotating motor not near the power input end is rotatably disposed on the end wall of the brush body 12, and at this time, an axial protrusion is formed on the end wall and a shaft hole is formed for the motor shaft to be supported and rotated.

Other structures may employ the structures of embodiments 1-5.

Example 5:

of course, in addition to the dc power supply, an alternating current may be selected, preferably a pulsed low voltage dc, and further preferably, the motor is eliminated and replaced directly with an oscillating electrode, which is fixed with the brush head, preferably hermetically disposed in the cavity of the brush head body, and drives the brush head to vibrate when vibrating. The electrode can be packaged and isolated in the brush head, and the electrode is made to vibrate electromagnetically to drive the brush head to vibrate and clean teeth.

As shown in fig. 15, a transformer circuit 51 is provided in the adapter, which can implement not only low-voltage ac but also low-voltage dc depending on the power source connected. In which primary winding 512 is coupled to secondary winding 513. A first terminal of the primary winding of the secondary winding 513 is connected to the first terminal 51a of the primary winding through a feedback control circuit 53, and a second terminal 513b of the secondary winding is for outputting low voltage static electricity or low voltage vibration. A lower voltage is obtained because the secondary winding converts the current developed at the terminals back to the primary winding 512. If a pulse voltage is adopted, the output of the secondary winding can obtain low-voltage low-frequency vibration. Preferably, the feedback control circuit 53 may be a variable resistor.

Therefore, the motor can be omitted, the oscillation of the brush head is realized by directly utilizing the oscillation of the electrode, the efficient tooth cleaning effect is further realized, the cost is reduced, the structure is simpler, and the electrode arranged in the brush head body is equivalent to a power device.

Example 6:

of course, in addition to the above-mentioned separate arrangement of the power source and the driving motor, the electric toothbrush without handle may also be powered by a lithium battery (suitable for miniaturization), and the whole device is arranged in the oral cavity by arranging the power source and the driving motor together. At this moment, the brush head is provided with the power switch, and the power switch is turned on during use, so that the toothbrush can be used conveniently, but the power switch is also packaged in the brush head to be turned on by pressure. It is also desirable to have a swallow prevention means, such as a lead wire on the head similar to the power cord of the previous embodiment, to prevent inadvertent swallowing during brushing.

No matter which kind of drive mode is adopted, above-mentioned scheme all can be preferred, and the brush head includes brush body and brush hair, and the brush hair setting is on the brush body, and the brush body is the main part in the brush head, and there is the inner chamber in the brush body, directly sets up power device in the cavity of the brush body, and realization that can be convenient does not have the handle and brushes teeth.

Of course, the present invention is not limited to the above embodiments, and it is within the scope of the present invention that the electric toothbrush is a handle-free electric toothbrush, and the electric toothbrush includes a brush head that can be changed in position by the tongue in the oral cavity and a power device for driving the brush head to perform a brushing motion.

Example 7:

the embodiment of the using method of the electric toothbrush without handle of the above embodiments 1-6 of the utility model is as follows:

(1) the charging plug formula:

firstly, taking out the brush head, connecting the charging plug with a household power supply, then squeezing toothpaste out of the brush head after the brush head is sufficiently wetted, directly putting the brush head into an inlet, then turning on a power switch, adjusting the vibration frequency of the toothbrush according to the self condition through a speed adjusting switch to clean teeth, moving the brush head with a tongue to clean all teeth in the oral cavity, finally taking out the brush head, turning off the power switch or pulling out the charging plug, and cleaning the brush head.

(2) The self-powered mode is as follows:

firstly, take out the brush head, connect charging wire and DC power supply (such as dry battery, treasured that charges etc. and then squeeze toothpaste out after will brushing the head abundant wet water, directly put into the mouth with the brush head, later turn on switch to through speed governing switch regulation toothbrush vibration frequency clean tooth according to self condition, remove the whole teeth in brush head cleaning oral cavity with the tongue, take out the brush head at last, close switch, and wash the brush head.

From the above description, it can be seen that the power supply of the electric toothbrush without handle of the present invention has better configuration, simple structure, no longer having a handle, more convenient use, more uniform and comfortable stress when cleaning teeth, and better experience for users; the brush head is provided with double-sided brush hair to improve the tooth brushing efficiency. Furthermore, the utility model discloses a handless toothbrush reduces and uses tired sense, prevents to cause the injury to tooth and gum, still is favorable to cultivateing child's custom of using the handless toothbrush, liberates both hands when brushing teeth, and the user can carry out other activities when brushing teeth, has better brushing teeth and experiences the sense.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A handle-less electric toothbrush comprising a brushhead which is resiliently positionable by the tongue within the mouth of the mouth and a power means for driving the brushhead to effect a brushing motion, said power means comprising a drive motor sealingly disposed within the brushhead and drivingly connected thereto; the driving motor is a vibration motor or a rotating motor; the power device also comprises a power line, one end of the power line is connected with the driving motor arranged in the brush head, the other end of the power line is provided with a power plug, and the power plug is detachably connected with an external power supply.

2. The handle-less electric toothbrush of claim 1, wherein: the external power supply is a charger or a battery or a power adapter which converts an alternating current power supply into low-voltage direct current power supply.

3. The handle-less electric toothbrush of claim 2, wherein: and a motor switch and a speed regulation switch are arranged on the power line.

4. The handle-less electric toothbrush of claim 3, wherein: the brush head comprises a brush body and brush hair, the driving motor is provided with a sealing shell, and the brush body is detachably sleeved on the sealing shell of the driving motor.

5. The handle-less electric toothbrush of claim 4, wherein: a port is formed on the side part of the brush body, the port is arranged on the input side of the power supply, a sealing plug is arranged on the port, and a through hole is formed in the sealing plug; the power line matched with the through hole forms a power line sealing joint, and the brush body port sealing plug and the power line sealing joint are in split splicing fit together.

6. The handle-less electric toothbrush of claim 5, wherein: the side part of the driving motor is also provided with a supporting piece, one end of the supporting piece is supported on the side surface of the vibration motor, and the other end of the supporting piece extends out of the through hole and is connected with the power line 1; the end side of the support piece extending out of the interface is inserted into the slot and forms interference fit with the slot.

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