CN211381918U - Electric tooth brush - Google Patents

Abstract

The embodiment of the utility model provides an electric toothbrush, it includes brush holder and the brush head of being connected with the brush holder, is equipped with the brush hair on the brush head, is equipped with the control panel in the brush holder, electric toothbrush still includes: the micro motor is arranged in the brush handle through the damping component or the matching of the damping component and the hard connecting piece, wherein the contact area of the hard connecting piece and the inner cavity wall of the brush handle is smaller than the preset contact area so as to prevent the vibration of the micro motor from being transmitted to the brush handle; the first end of the vibration transmission shaft is fixedly connected in the brush head, and the second end of the vibration transmission shaft extends into the brush handle to be indirectly connected with the micro motor so as to transmit the vibration of the micro motor to the brush head. The electric toothbrush provided by the embodiment of the utility model can prevent the vibration of the micro motor from being transmitted to the brush handle; meanwhile, the vibration of the micro motor is effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration intensity of the brush head is improved, and the cleaning effect of tooth brushing is enhanced; meanwhile, the brush head can be made smaller, so that the toothbrush is more attractive in appearance and more convenient to use.

Description

Electric tooth brush

Technical Field

The utility model belongs to the technical field of little household electrical appliances, especially, relate to an electric toothbrush.

Background

The electric toothbrush who uses the coreless motor now, its coreless motor has two kinds of installation fixed knot to construct, one kind is that direct mount is close to the inside of brushing first position at toothbrush handle top, one kind is installed in brushing first, the fixed mode of these two kinds of installation of current all has not enough place, the fixed mode of first kind installation, the vibrations very big partly of coreless motor production are given the handle, user experience feels hand quilt shake numb, but the vibrations intensity of brush head is weak, clean effect is poor. In the second mounting and fixing mode, the hollow cup motor is arranged in the brush head part, so that the brush head of the brush head part is large in overall dimension and not attractive in appearance; moreover, the structure has more parts and is inconvenient to produce and manufacture, and in the using process, the hollow cup motor drives the brush head part to vibrate at high frequency, so that the sealing ring at the joint of the brush head and the brush handle is sealed and leaked, and the parts in the brush head and the handle are easy to corrode.

Chinese patent No. CN 209464114U discloses an electric toothbrush, which comprises a toothbrush head body, a toothbrush handle, a transmission rod with a cavity, and a micro motor, wherein the micro motor is disposed in the cavity of the transmission rod, and the transmission rod is disposed in the toothbrush head body, so that the toothbrush head body has a larger external dimension due to the arrangement of the micro motor therein, which is inconvenient to use, and a rubber ring disposed between the toothbrush head body and the toothbrush handle is easy to leak, which affects an electric control component in the toothbrush handle, and has a safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, an object of the present invention is to provide an electric toothbrush that guides the vibration of a micro motor to be transmitted to a brush head and blocks the vibration from being transmitted to a brush holder.

The embodiment of the utility model provides an electric toothbrush, its include the brush holder and with the brush head that the brush holder is connected, the brush head is kept away from the one end of brush holder is equipped with the brush hair, be equipped with the control panel of installing on the inner core support in the brush holder, electric toothbrush still includes:

the micro motor is arranged in the brush handle through a damping component or the damping component is matched with a hard connecting piece, wherein the contact area of the hard connecting piece and the inner cavity wall of the brush handle is smaller than a preset contact area so as to prevent the vibration of the micro motor from being transmitted to the brush handle;

the first end of the vibration transmission shaft is connected into the brush head, and the second end of the vibration transmission shaft extends into the brush handle and is indirectly connected with the micro motor so as to transmit the vibration of the micro motor to the brush head.

The electric toothbrush of the embodiment of the utility model can prevent the vibration generated by the micro motor from being transmitted to the brush handle, reduce the vibration of the hand holding the brush handle and improve the comfort of the user; meanwhile, the vibration of the micro motor is effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration strength of the brush head with the bristles is improved, and the cleaning effect is enhanced. And the micro motor is arranged in the brush handle, so that the brush head is not thick, the appearance is attractive, and the use is convenient.

In some embodiments, the electric toothbrush further comprises a mounting member disposed within an end of the handle connected to the head and forming an annular space between the handle and the inner chamber wall, the shock absorbing assembly comprising a first shock absorbing member disposed within the annular space for resiliently connecting the handle to the mounting member;

the two ends of the mounting component along the length direction of the brush handle are respectively provided with a first mounting hole and a second mounting hole, and the micro motor is partially arranged in the first mounting hole and is tightly matched with the hole wall of the first mounting hole; and the second end of the vibration transmission shaft is arranged in the second mounting hole and is tightly matched with the hole wall of the second mounting hole.

The arrangement of the mounting part is convenient for the micro motor to be in a suspension shape, the mounting stability of the micro motor is ensured, and the vibration is transmitted to the brush handle as little as possible.

In some embodiments, the first shock absorbing member includes a shock absorbing ring and at least two shock absorbing arms connected to the shock absorbing ring, the shock absorbing ring is sleeved on the mounting member and attached to the inner cavity wall of the brush handle, and the shock absorbing arms are sandwiched between the outer wall of the mounting member and the inner cavity wall of the brush handle. Structural design is ingenious, and first shock attenuation piece both had played the effect of shock insulation and support, and the cushion ring still plays sealed effect simultaneously.

In some embodiments, a bracket is arranged on the inner core support, and the tail part of the micro motor is arranged in the bracket;

the damping assembly further comprises a second damping piece arranged between the tail of the micro motor and the bracket, and the second damping piece covers at least part of the side wall of the tail of the micro motor. The vibrations that have produced through the second shock attenuation piece separation micro motor pass through the inner core support and pass to the control panel on the inner core support and with the brush holder that inner core support direct contact is connected to improve electric toothbrush's use comfort, and protect the electronic components in the brush holder.

In some embodiments, the hard attachment is a plurality of hard tabs; the hard sheets are arranged around the same periphery of the mounting part, one end of each hard sheet is connected with the inner cavity wall of the brush handle, and the other end of each hard sheet is connected with the outer wall of the mounting part. The hard sheet has a simple structure, is convenient to process, can ensure a smaller contact area, and can ensure that the mounting part is stably arranged in the brush handle.

In some embodiments, the handle, the mounting member and the rigid sheet are integrally formed, and are made of rigid plastic. The one-time injection molding processing is convenient, and the working procedures are simplified.

In some embodiments, an annular groove is formed in a section of the vibration transmission shaft located in the brush head, and an annular protrusion embedded in the annular groove is formed in the brush head to limit the axial movement of the brush head on the vibration transmission shaft, so that the connection stability is enhanced.

In some embodiments, a section of the shock conducting shaft within the brush head is at least partially a flat shaft to limit rotation of the brush head on the shock conducting shaft.

In some embodiments, a through hole for communicating the first mounting hole and the second mounting hole is provided between the first mounting hole and the second mounting hole, and the through hole has a smaller diameter than the first mounting hole and the second mounting hole. The through hole is convenient for exhaust during installation and is assembled.

In some embodiments, the first shock absorbing member and the button on the brush handle are integrally formed, and both are made of soft rubber; and/or the vibration transmission shaft is made of a hard material. The structure can be simplified by integral forming, and one-time injection molding processing is convenient; the hard metal is convenient to obtain and can ensure the effective conduction of vibration.

Compared with the prior art, the electric toothbrush provided by the embodiment of the utility model can prevent the vibration of the micro motor from being transmitted to the brush handle; the vibration of the micro motor can be effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration strength of the brush head is improved, and the cleaning effect is enhanced; the brush head can be made thin and small, so that the toothbrush has more beautiful appearance and more convenient use.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic structural view of an electric toothbrush according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 2.

Fig. 4 is an exploded view of the electric toothbrush according to the embodiment of the present invention.

Fig. 5 is a schematic view of the internal structure of the electric toothbrush according to the embodiment of the present invention.

Fig. 6 is a schematic view of the structure of the handle of the electric toothbrush of the embodiment of the present invention.

Fig. 7 is a sectional view taken along line C-C in fig. 6.

Fig. 8 is a sectional view taken along line D-D in fig. 7.

Fig. 9 is a perspective cross-sectional view of a handle of an electric toothbrush in accordance with an embodiment of the present invention.

Fig. 10 is a schematic perspective view of a first shock absorbing member and a button of an electric toothbrush according to an embodiment of the present invention.

Fig. 11 is a perspective view of a second shock absorber in a handle of an electric toothbrush according to an embodiment of the present invention.

Figure 12 is a front view of a second dampener in the handle of an electric toothbrush according to an embodiment of the present invention.

Reference numerals:

1-a brush head; 2-brush hair; 3-brush handle; 4-a cavity; 5-control panel; 6-inner core support; 7-a bracket; 8-a micro motor; 9-a vibration transmission shaft; 10-an annular groove; 11-flat shaft; 12-a mounting member; 13-annular spacing; 14-a first damping member; 15-a shock-absorbing ring; 16-a shock absorbing arm; 17-a second damping member; 18-a base pad; 19-side pad; 20-clearance; 21-hard connections; 22-through holes; 23-a button; 24-a negative spring; 25-positive spring plate; 26-a battery; 27-tail cap.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 to 9, an embodiment of the present invention provides an electric toothbrush, which includes a brush handle 3 and a brush head 1 connected to the brush handle 3, wherein a brush bristle 2 is disposed at an end of the brush head 1 away from the brush handle 3, a cavity 4 is disposed in the brush handle 3, the cavity 4 penetrates through to an end of the brush handle 3 for connecting to the brush head 1, and an inner core support 6 and a control board 5 mounted on the inner core support 6 are disposed in the cavity 4; the electric toothbrush also comprises a micro motor 8 and a vibration conduction shaft 9, wherein the micro motor 8 is arranged in the brush handle 3 through a damping component or the matching of the damping component and a hard connecting piece 21, wherein the contact area between the hard connecting piece 21 and the inner cavity wall of the brush handle 3 is smaller than a preset contact area so as to prevent the vibration of the micro motor 8 from being transmitted to the brush handle 3; the first end of the vibration transmission shaft 9 is used for extending into the brush head 1 so that the brush head 1 is connected to the brush holder 3 through the vibration transmission shaft 9, and the second end of the vibration transmission shaft 9 extends into the brush holder 3 and is indirectly and fixedly connected with the micro motor 8 so as to transmit the vibration of the micro motor 8 to the brush head 1.

The embodiment of the utility model arranges the micro motor 8 in the containing cavity 4 of the brush holder 3 through the damping component or the matching of the damping component and the hard connecting piece 21, so as to prevent the vibration generated by the micro motor 8 from being transmitted to the brush holder 3 as much as possible, reduce the vibration of the hand holding the brush holder 3 and improve the comfort of the user; simultaneously, the vibration of the micro motor 8 is effectively transmitted to the brush head 1 through the vibration transmission shaft 9, so that the vibration strength of the brush head 1 provided with the brush hairs 2 is improved, and the cleaning effect is enhanced. And the micro motor 8 is arranged in the brush handle 3, so that the brush head 1 is not thick, the appearance is attractive, and the use is convenient.

It should be noted that one end of the brush head 1, at which the bristles 2 are arranged, is defined as a front end, and the end of the brush head 1, which is connected with the brush handle 3, is a rear end; the front end is the end of the brush holder 3 connected with the brush head 1, the rear end is the other end of the brush holder 3, and the front and rear positions of other parts are consistent with the front and rear positions of the brush head 1 and the brush holder 3.

In order to stably mount the micro-motor 8 in the handle 3 and transmit the vibration to the handle 3 as little as possible, in some embodiments, as shown in fig. 2 to 5 and 7 to 9, the electric toothbrush further includes a mounting part 12, the mounting part 12 is disposed in the cavity 4 and is close to the toothbrush head 1, the mounting part 12 forms an annular space 13 with a cavity wall of the cavity 4 (the cavity wall of the cavity 4 is an inner cavity wall of the handle 3), and the shock-absorbing assembly includes a first shock-absorbing member 14 disposed in the annular space 13 and elastically connecting the handle 3 and the mounting part 12; the two ends of the mounting part 12 along the length direction of the brush handle 3 are respectively provided with a first mounting hole and a second mounting hole, the micro motor 8 is partially arranged in the first mounting hole, the front end part of the micro motor 8 is arranged in the first mounting hole, and the outer wall of the micro motor 8 is tightly matched with the hole wall of the first mounting hole; the micro motor 8 in the embodiment is cylindrical, and the front end of the micro motor is provided with an eccentric wheel for generating vibration; the first mounting hole and the second mounting hole are both cylindrical holes; the second end (i.e. the rear end) of the vibration transmission shaft 9 is installed in the second installation hole, and the outer wall of the vibration transmission shaft 9 is tightly matched with the hole wall of the second installation hole, so that the vibration generated by the micro motor 8 is transmitted to the brush head 1 through the installation part 12 and the vibration transmission shaft 9.

In some embodiments, as shown in fig. 10 in combination with fig. 2, 3, 7 and 9, the first shock absorbing member 14 includes a shock absorbing ring 15 and at least two shock absorbing arms 16 connected to the shock absorbing ring 15, the shock absorbing ring 15 is sleeved on the mounting member 12 and attached to the inner cavity wall of the handle 3, and the shock absorbing arms 16 are sandwiched between the outer wall of the mounting member 12 and the inner cavity wall of the handle 3. In this embodiment, the mounting member 12 is cylindrical in shape, and the front end thereof protrudes beyond the front end of the handle 3 to extend into the head 1 when connected to the head 1, thereby enhancing the connection strength; the shock absorption ring 15 is sleeved on the mounting part 12 and is positioned at the port of the containing cavity 4 of the brush holder 3 and is flush with the front end face of the brush holder 3, the shock absorption ring 15 has the effect of supporting and isolating shock, and simultaneously has the function of a sealing ring to prevent external dust or water and the like from entering the containing cavity 4 of the brush holder 3; the inner surface and the outer surface of the damping arm 16 are both cambered surfaces so as to be matched and attached with the outer surface of the mounting part 12 and the cambered surface of the cavity wall of the cavity 4 respectively. The length and number of the shock absorbing arms 16 are not limited, and in order to enhance the stability of the mounting member 12 and reduce the cost as much as possible, the number of the shock absorbing arms 16 is two in the present embodiment, and the rear end of the shock absorbing arm 16 extends to be close to the rear end of the mounting member 12.

In some embodiments, as shown in fig. 4 and 5, a bracket 7 is arranged on the core support 6, and the tail part of the micro motor 8 is arranged in the bracket 7; the shock absorption assembly further comprises a second shock absorption member 17 arranged between the tail part of the micro motor 8 and the bracket 7, and the second shock absorption member 17 covers at least part of the side wall of the tail part of the micro motor 8. As shown in fig. 11 and 12 in conjunction with fig. 2 to 5, the second shock absorbing member 17 includes a bottom pad 18 for blocking the micro motor 8 from being directly connected to the bracket 7 and a side pad 19 extending from the bottom pad 18 toward the body of the micro motor 8, the inner side of the side pad 19 is attached to the body of the micro motor 8, and the outer side of the side pad 19 is attached to the bracket 7; the second shock absorbing member 17 blocks the vibration generated by the micro motor 8 from being transmitted to the control board 5 on the inner core support 6 and the brush holder 3 directly contacted and connected with the inner core support 6 through the inner core support 6, so that the use comfort of the electric toothbrush is improved, and electronic components in the brush holder 3 are protected.

As shown in fig. 11, the side pads 19 of the present embodiment are provided in two pairs, and a gap 20 is formed between each pair, so that the assembling stability of the micro-motor 8 is ensured, and other requirements such as circuit wiring can be met.

The utility model discloses electric toothbrush makes the similar floated installing of micro motor 8 in brush holder 3 under first damper, second damper and stereoplasm connecting piece 21's cooperation to keep apart with brush holder 3, blocked the vibrations of its production and to brush holder 3's conduction, can not appear the phenomenon that user's hand vibrations are too big or hand anesthesia in making its use, use and experience the preferred. The electric toothbrush has the advantages of ingenious design, reasonable structure, strong stability, convenient processing and manufacturing and convenient popularization and application.

It should be understood that the contact area of the hard connecting member 21 with the cavity wall is smaller than the predetermined contact area, which means that the predetermined contact area should be in contact with a smaller area, so that the vibration generated by the micro-motor 8 is transmitted to the brush holder 3 as little as possible, and the vibration generated by the micro-motor is prevented from being lost, for example, the contact manner of the hard connecting member 21 with the cavity wall is point contact or line contact.

In some embodiments, as shown in fig. 9, the hard connecting pieces 21 are hard sheets, the number of the hard connecting pieces 21 can be one or more, and the sheet-shaped hard connecting pieces 21 are in contact with the cavity wall, namely, in a line contact manner; when there are a plurality of hard sheets, the hard sheets are arranged around the same circumference of the mounting member 12, one end of the hard sheet is connected with the inner cavity wall of the brush holder 3, and the other end is connected with the outer wall of the mounting member 12. The structure not only ensures the connection between the mounting part 12 and the brush holder 3, but also prevents the vibration of the micro motor 8 from being transmitted to the brush holder 3 because the connection contact area is small.

Furthermore, for the convenience of processing, the brush handle 3, the mounting part 12 and the hard sheet are of an integral structure, and the materials of the integral structure are all hard plastics. The embodiment shows two hard sheets, which are uniformly distributed on the mounting member 12.

In some embodiments, as shown in fig. 2 to 9, an annular groove 10 is formed on a section of the vibration transmission shaft 9 located in the brush head 1, and an annular protrusion for being embedded in the annular groove 10 is formed on the brush head 1 to limit the movement of the brush head 1 in the axial direction of the vibration transmission shaft 9 when the brush head 1 is mounted on the brush handle 3, so as to ensure the stability of the connection between the brush head 1 and the vibration transmission shaft 9.

Further, with reference to fig. 5, at least a portion of the section of the vibration transmission shaft 9 located in the brush head 1 is a flat shaft 11 to limit the brush head 1 from rotating on the vibration transmission shaft 9, so as to stably limit the brush head 1 on the vibration transmission shaft 9, so as to effectively transmit the vibration of the micro motor 8 to the brush head 1, thereby improving the vibration strength of the brush head 1 and improving the tooth cleaning effect.

The vibration transmission shaft 9 is not limited to be made of any material as long as it can effectively transmit the vibration of the micro motor 8, and it is preferable to use a hard material, such as a stainless steel material or a hard plastic material, to ensure the vibration transmission effect, and it is also possible to use a hard metal alloy material.

In some embodiments, as shown in fig. 3, a through hole 22 for communicating the first mounting hole and the second mounting hole is provided between the first mounting hole and the second mounting hole, and the aperture of the through hole 22 is smaller than the aperture of the first mounting hole and the aperture of the second mounting hole. The through hole 22 may be used for exhausting air when being installed, so that the installation is convenient and smooth.

In some embodiments, for manufacturing convenience, the damping arm 16 of the first damping member 14 and the button 23 on the handle 3 are integrally formed by a connecting member, and both are made of soft rubber, so that the first damping member and the second damping member can be conveniently molded by one-time injection, and the purpose of saving parts is achieved.

With continuing to combine with fig. 2 to 5, components and parts ensuring normal use of the electric toothbrush, such as a negative spring 24, a positive elastic sheet 25, a battery 26, etc., are further arranged in the brush handle 3, for the installation and the disassembly of the battery 26, a detachable tail cover 27 is arranged at the tail end of the brush handle 3, and the tail cover 27 and the tail end of the brush handle 3 can be detachably connected through a connection mode, such as a thread or a buckle, etc.

The utility model discloses electric toothbrush passes through damper with micro motor 8 and 3 separations of brush holder to with the help of vibrations conduction axle 9 simultaneously, with the vibrations separation that micro motor 8 produced to the conduction of brush holder 3, and pass to brush head 1 through vibrations conduction axle 9, effectively utilize micro motor 8's vibrations, reduced the vibrations of user's hand, and the vibrations of brush head 1 are stronger, have improved the clean effect of tooth.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims (10)

1. The utility model provides an electric toothbrush, including the brush holder and with the brush head that the brush holder is connected, the brush head is kept away from the one end of brush holder is equipped with the brush hair, be equipped with the control panel of installing on the inner core support in the brush holder, its characterized in that, electric toothbrush still includes:

the micro motor is arranged in the brush handle through a damping component or the damping component is matched with a hard connecting piece, wherein the contact area of the hard connecting piece and the inner cavity wall of the brush handle is smaller than a preset contact area so as to prevent the vibration of the micro motor from being transmitted to the brush handle;

the first end of the vibration transmission shaft is connected into the brush head, and the second end of the vibration transmission shaft extends into the brush handle and is indirectly connected with the micro motor so as to transmit the vibration of the micro motor to the brush head.

2. The powered toothbrush as defined in claim 1, further comprising a mounting member disposed within an end of the handle connected to the head and forming an annular space with an inner chamber wall of the handle, the shock absorbing assembly including a first shock absorbing member disposed within the annular space for resiliently connecting the handle to the mounting member;

the two ends of the mounting component along the length direction of the brush handle are respectively provided with a first mounting hole and a second mounting hole, and the micro motor is partially arranged in the first mounting hole and is tightly matched with the hole wall of the first mounting hole; and the second end of the vibration transmission shaft is arranged in the second mounting hole and is tightly matched with the hole wall of the second mounting hole.

3. The powered toothbrush as defined in claim 2, wherein the first shock absorber includes a shock absorbing ring and at least two shock absorbing arms connected to the shock absorbing ring, the shock absorbing ring is sleeved on the mounting member and attached to the inner cavity wall of the handle, and the shock absorbing arms are sandwiched between the outer wall of the mounting member and the inner cavity wall of the handle.

4. The electric toothbrush according to claim 2, wherein a bracket is provided on the core support, and a tail of the micro motor is disposed in the bracket;

the damping assembly further comprises a second damping piece arranged between the tail of the micro motor and the bracket, and the second damping piece covers at least part of the side wall of the tail of the micro motor.

5. The electric toothbrush of claim 2, wherein the hard attachment is a hard tab; the number of the hard sheets is one or more, when the number of the hard sheets is multiple, the hard sheets are arranged around the same periphery of the mounting part, one end of each hard sheet is connected with the inner cavity wall of the brush handle, and the other end of each hard sheet is connected with the outer wall of the mounting part.

6. The powered toothbrush as defined in claim 5, wherein the handle, the attachment member and the rigid sheet are integrally formed of a rigid plastic.

7. The electric toothbrush of claim 1, wherein the shock conducting shaft has an annular groove on a section thereof inside the brush head, and the brush head has an annular protrusion for fitting into the annular groove to limit axial play of the brush head on the shock conducting shaft.

8. The powered toothbrush as defined in claim 1, wherein a section of the shock conducting shaft within the brushhead is at least partially a flat shaft to limit rotation of the brushhead on the shock conducting shaft.

9. The electric toothbrush according to claim 2, wherein a through hole for communicating the first mounting hole and the second mounting hole is provided between the first mounting hole and the second mounting hole, and the through hole has a smaller diameter than the first mounting hole and the second mounting hole.

10. The electric toothbrush of claim 3, wherein the first shock absorbing member and the button on the handle are integrally formed and both made of soft plastic; and/or

The vibration transmission shaft is made of hard materials.

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