CN212165935U

CN212165935U - Electric tooth brush

Info

Publication number: CN212165935U
Application number: CN201921948042.2U
Authority: CN
Inventors: 田岐保
Original assignee: Emask Shenzhen Technology Co ltd
Current assignee: Emask Shenzhen Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-12-18
Anticipated expiration: 2029-11-11

Abstract

The application discloses electric toothbrush, electric toothbrush includes brush head and brush holder, the brush head includes the base and is fixed in the brush hair of base, brush holder one end is equipped with first fixed part of brush, first fixed part of brush is equipped with first mounting groove, first mounting groove detachably of brush accepts the base, first mounting groove bottom of brush is equipped with dismantles ejecting portion, it will to dismantle ejecting portion supplies outside liftout piece the ejecting separation of base brush first mounting groove. This application realizes the aggregate erection and the dismantlement of brush head and brush holder through setting up detachable brush head to brush head carries out timely change according to the condition of using, avoids the waste and the environmental pollution that the whole change caused from this, has also made things convenient for electric toothbrush's dismantlement maintenance simultaneously.

Description

Electric tooth brush

Technical Field

The application relates to the field of electric toothbrushes, in particular to an electric toothbrush with a detachable brush head.

Background

The electric toothbrush is a toothbrush which can make the brush head generate high-frequency vibration by the quick rotation or vibration of the motor core. The brush head is easily damaged due to long-term work, so that the brush head needs to be frequently replaced by a new one. Because the brush holder and the brush head of the electric toothbrush used at present are arranged integrally, the brush holder and the brush head need to be replaced integrally when the brush head is replaced, and the integral replacement causes waste to resources.

SUMMERY OF THE UTILITY MODEL

The application provides an electric toothbrush, electric toothbrush includes brush head and brush holder, the brush head includes the base and is fixed in the brush hair of base, brush holder one end is equipped with first fixed part, first fixed part of brush is equipped with first mounting groove, first mounting groove detachably of brush accepts the base, first mounting groove bottom of brush is equipped with dismantles ejecting portion, it will to dismantle ejecting portion supplies outside ejecting the piece the ejecting separation of base brush first mounting groove.

The disassembly ejection part is provided with a first through hole, and the penetrating direction of the first through hole faces to the bottom surface of the base.

The brush head fixing part is provided with a first boss and a second boss, the first boss and the second boss are arranged on the inner wall of the brush head mounting groove, the second boss and the first boss are arranged in an axial symmetry mode relative to the extending direction of the brush handle, the brush head fixing part is provided with a push-out surface which passes through the connecting line of the first boss and the second boss and is perpendicular to the bottom surface of the mounting groove, and the first through hole is arranged at the bottom of the mounting groove and is positioned on the push-out surface; the base lateral wall is equipped with first recess, first boss with the second boss with first recess block is connected.

The brush head mounting groove is provided with a first groove, and the first groove is connected with the brush head mounting groove in a clamping manner.

The brush head mounting groove further comprises a first soft rubber layer extending along the circumferential direction of the inner wall of the brush head mounting groove, and the first soft rubber layer is connected with the side wall of the base in a clamping mode.

The base further comprises a second soft adhesive layer extending along the circumferential direction of the side wall of the base, and the second soft adhesive layer is connected with the inner wall of the brush head mounting groove in a clamping mode.

The inner wall of the bottom of the brush head installation groove faces towards one side of the brush head, a first magnetic absorption layer is arranged on the outer wall of the bottom of the base, a second magnetic absorption layer is arranged on the outer wall of the bottom of the base, the first magnetic absorption layer is magnetically absorbed by the second magnetic absorption layer and connected with the second magnetic absorption layer, a second through hole is formed in the first magnetic absorption layer, and the second through hole is opposite to the first through hole.

The outer wall of the bottom of the base is provided with a through column, the through column is opposite to the first through hole, and the through column penetrates through the first through hole.

Wherein, the first mounting groove of brush still includes the third through-hole, the third through-hole run through set up in on the first mounting groove lateral wall of brush, the direction of running through of third through-hole with the extending direction of brush holder is unanimous, the base is equipped with the fourth through-hole, the fourth through-hole set up in on the base lateral wall, the direction of running through of fourth through-hole with the extending direction of brush holder is unanimous, the brush holder passes the third through-hole with the fourth through-hole with the first mounting groove of brush with brush head intercommunication.

The brush head mounting groove comprises a first accommodating cavity, a second accommodating cavity and a connecting piece, the first accommodating cavity is connected with the second accommodating cavity through the connecting piece, and the first accommodating cavity and the second accommodating cavity are combined to form the brush head mounting groove.

The application provides an electric toothbrush, through setting up the first aggregate erection and the dismantlement of brush head and brush holder of realization of detachable to carry out timely change to the brush head according to the condition of using, avoid the waste and the environmental pollution that whole change caused from this.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic perspective view of an electric toothbrush provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic perspective view of a brush head provided by an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a mounting slot for a brushhead provided by an embodiment of the present application;

figure 4 is a schematic perspective view of a brush head provided by an embodiment of the present application;

figure 5 is a schematic perspective view of a brush head provided by an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a mounting slot for a brushhead provided by an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of a mounting slot for a brushhead provided by an embodiment of the present application;

figure 8 is a schematic perspective view of a brush head provided by an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a base provided by an embodiment of the present application;

figure 10 is a schematic perspective view of a brush head provided by an embodiment of the present application;

FIG. 11 is a schematic cross-sectional view of a base provided by an embodiment of the present application;

FIG. 12 is a schematic cross-sectional view of a mounting slot for a brushhead provided by an embodiment of the present application;

FIG. 13 is a schematic perspective view of a brush head and a through post provided by an embodiment of the present application;

figure 14 is a schematic perspective view of a brush head provided by an embodiment of the present application;

FIG. 15 is a schematic perspective view of a mounting slot for a brushhead provided by an embodiment of the present application;

fig. 16 is a schematic perspective view of a first receiving cavity and a second receiving cavity provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The application discloses electric toothbrush 100, please refer to fig. 1, electric toothbrush 100 includes brush head 10 and brush holder 20, brush head 10 includes base 11 and brush hair 12 that is fixed in base 11, brush holder 20 one end is equipped with first fixed part 21, first fixed part 21 is equipped with first mounting groove 22 of brush, first mounting groove 22 detachably accepts base 11 of brushing, first mounting groove 22 bottom of brushing is equipped with dismantlement ejecting portion 221, dismantle ejecting portion 221 supply outside ejecting piece with base 11 is ejecting to break away from brush first mounting groove 22.

Specifically, in this embodiment, the length of the handle 20 is greater than that of the head 10, the head 10 is fixed to the head fixing portion 21 of the handle 20, and the head 10 and the handle 20 are combined to form the electric toothbrush 100. The bristles 12 are arranged on one side of the brush head 10, the arrangement direction of the bristles 12 is perpendicular to the base 11 and the extending direction of the brush holder 20, and the bristles 12 can be made of nylon, polypropylene and the like.

Further, the brush head 10 and the brush handle 20 are detachably connected, the brush head 10 and the brush handle 20 are two independent components, and the two components are combined and connected into the electric toothbrush 100 by adopting a mechanical connection mode or a magnetic connection mode and the like. Utilize brush holder 20 and brush head 10 to dismantle and be connected, conveniently dismantle the maintenance to electric toothbrush 100, guaranteed the life extension of brush holder 20 to conveniently change brush head 10, satisfy diversified operation requirement. The end of the brush handle 20 is a brush head fixing portion 21 for mounting the brush head 10.

More specifically, the brush holder 20 is connected to the brush head 10 through a brush head mounting groove 22 of the brush head fixing portion 21. The brush head fixing portion 21 has a top portion, a bottom portion disposed opposite to the top portion, and a peripheral side wall connected between the top and bottom ends, the brush holder 20 is provided with a brush rod extending from the peripheral side wall, and a motor, a battery, a circuit board, a processor, and the like are disposed in the brush rod. The top of the brush head mounting groove 22 is provided with an opening, and the base of the brush head is accommodated in the brush head mounting groove 22 through the opening. The inner peripheral side wall of the brush head mounting groove 22 is in interference fit with the outer peripheral side wall of the base, so that the brush head 10 can be tightly fixed in the brush head mounting groove 22, and the normal use of the electric toothbrush 100 is realized. It can be understood that the assembly of the brush head 10 and the brush handle 20 is realized by the base 11 being installed in the brush head installation groove 22, and the brush 12 can be partially installed in the brush head installation groove 22 or completely installed outside the brush head installation groove 22, so as to realize the normal brushing function of the electric toothbrush 100. The bottom of the brush head mounting groove 22 is provided with a disassembly liftout part 221 which can separate the brush head 10, when the brush holder 20 and the brush head 10 need to be disassembled, the brush head 10 is ejected out from the brush head mounting groove 22 through the disassembly liftout part 221 by an external liftout piece.

In this embodiment, referring to fig. 1, the detaching and ejecting portion 221 has a first through hole 2211, and a penetrating direction of the first through hole 2211 faces to the bottom surface of the base 11. Specifically, in this embodiment, the first through hole 2211 is disposed through the bottom surface of the brush head mounting groove 22, and the first through hole 2211 faces the bottom of the brush head 10, so that the brush head 10 can be ejected out through the first through hole 2211 by an external ejector. It is understood that the number of the first through holes 2211 is more than one, and the shape of the first through holes 2211 may be, but not limited to, circular and triangular. In other embodiments, the position of the first through hole 2211 may also be a side wall of the brush head mounting groove 22, and at this time, the penetrating direction of the first through hole 2211 is an opening direction toward the brush head mounting groove 22, so that the external ejection member can eject the brush head 10 out of the brush head mounting groove 22.

In this embodiment, referring to fig. 2 to 4, the brush head fixing portion 21 is provided with a first boss 211 and a second boss 212, the first boss 211 and the second boss 212 are disposed on an inner wall of the brush head mounting groove 22, the second boss 212 and the first boss 211 are disposed in an axisymmetric manner with respect to an extending direction of the brush handle 20, the brush head fixing portion 21 is provided with a push-out surface 213 which is connected by the first boss 211 and the second boss 212 and is perpendicular to a bottom surface of the mounting groove 22, and the first through hole 2211 is disposed at a mounting bottom of the brush head 10 and is located on the push-out surface 213; the side wall of the base 11 is provided with a first groove 116, and the first boss 211 and the second boss 212 are connected with the first groove 116 in a clamping manner. Specifically, in this embodiment, the first protrusion 211 may be disposed at any position on the inner wall of the brush head mounting groove 22, the first protrusion 211 is a small protrusion on the inner wall of the brush head mounting groove 22, and the first protrusion 211 may limit the mounting space of the brush head 10 in the brush head mounting groove 22. It can be understood that the shape of the first bosses 211 may be, but is not limited to, circular or rectangular, the number of the first bosses 211 is more than one, and the arrangement of the second bosses 212 is similar to that of the first bosses 211, which is not described herein again. Further, the second protrusion 212 is set according to the position of the first protrusion 211, the position of the second protrusion 212 can be determined by the extending direction of the handle 20, the height of the first protrusion 211 on the inner wall of the head mounting groove 22 is the same as the height of the second protrusion 212 on the inner wall of the head mounting groove 22, and the first protrusion 211 and the second protrusion 212 are symmetrical with respect to the extending direction of the handle 20. It can be understood that the first bosses 211 and the second bosses 212 are a means for fixing the brush head 10, and the first bosses 211 and the second bosses 212 are symmetrically arranged to further enhance the stability of the fixed brush head 10. In other embodiments, the base 11 of the brush head 10 is provided with first grooves 116, the first grooves 116 are arranged on the side wall of the base 11, and the number and size of the first grooves 116 correspond to the first bosses 211 and the second bosses 212; when the brush head 10 is mounted in the brush head mounting groove 22, the first boss 211 and the second boss 212 are clamped into the first groove 116, so that the tight connection between the brush head 10 and the brush head mounting groove 22 is realized.

In other embodiments, the arrangement position of the first through hole 2211 is determined according to the relative positions of the first boss 211 and the second boss 212. In order to determine the position of the first through hole 2211, the ejection surface 213 is virtually arranged, and the ejection surface 213 passes through the connection line of the first boss 211 and the second boss 212 and is perpendicular to the bottom surface of the brush head mounting groove 22. Further, the first through hole 2211 is disposed on a contact line between the ejecting surface 213 and the bottom surface of the brush head mounting groove 22, and the first through hole 2211 passes through the contact line. It can be understood that the first and

second bosses

211 and 212 and the first groove 116 are engaged with each other to fix the brush head 10 and the brush head mounting groove 22, that is, the joint between the first and

second bosses

211 and 212 and the first groove 116 is the region with the maximum engaging force, so that the first through hole 2211 is provided on the contact line between the ejection surface 213 and the brush head mounting groove 22, so that the acting force of the external ejection member can directly act on the region with the maximum engaging force, and the brush head 10 can be better ejected.

In this embodiment, referring to fig. 5 and 6, a third boss 111 is disposed on a side wall of the base 11, a second groove 222 is disposed in the brush head mounting groove 22, and the third boss 111 is connected to the second groove 222 in a snap-fit manner. Specifically, in the present embodiment, the third bosses 111 are disposed on the side wall of the base 11, the shape of the third bosses 111 is not limited to circular or rectangular, and the number of the third bosses 111 is more than one. The second groove 222 is disposed in the brush head mounting groove 22 and is used for being engaged with the third protrusion 111, the number and shape and size of the second groove 222 are matched with the third protrusion 111, and the recess direction of the second groove 222 is that the inner wall of the brush head mounting groove 22 is recessed towards the outer wall of the brush head mounting groove 22. When the brush head 10 is mounted in the brush head mounting groove 22, the third boss 111 is clamped into the second groove 222, so that the brush head 10 is fixedly connected with the brush head mounting groove 22.

In this embodiment, referring to fig. 7, the brush head mounting groove 22 further includes a first soft adhesive layer 223 extending along the circumferential direction of the inner wall of the brush head mounting groove 22, and the first soft adhesive layer 223 is connected with the side wall of the base 11 in a clamping manner. Specifically, in this embodiment, the soft glue layer is made of a soft glue material, and the soft glue layer is made of a material including, but not limited to, polypropylene and polyethylene. The soft adhesive layer has tensile property, can generate deformation under the use of external force, and can generate resilience force towards the outside in order to restore the natural state when being in a compression deformation state, so that the purpose of fixing the brush head 10 can be achieved by utilizing the resilience force. Furthermore, the flexible glue layer can be fixedly connected to the inner wall of the brush head mounting groove 22, and the thickness of the flexible glue layer can enable the brush head 10 to generate resilience force when being mounted to the brush head mounting groove 22 so as to fix the brush head 10. When the brush head 10 is installed, the accommodating space formed by the brush head installation groove 22 and the first soft rubber layer 223 is smaller than the volume of the brush head 10, so that the first soft rubber layer 223 can be extruded in the installation process of the brush head 10, the first soft rubber layer 223 generates deformation and generates resilience force to the brush head 10, and the brush head 10 is fixed in the brush head installation groove 22. It will be appreciated that the first layer of soft glue 223 may provide the best securing effect when it fills the brushhead mounting slot 22. In other embodiments, the first soft adhesive layer 223 may not be fixedly installed in the brush head installation groove 22, and the first soft adhesive layer 223 may be deformed to generate a resilient force for fixing the brush head installation groove 22 and the brush head 10, so that the specification of the first soft adhesive layer 223 may be changed in time according to the size of the brush head 10.

In this embodiment, referring to fig. 8 and 9, the base 11 further includes a second soft adhesive layer 112 extending along the circumferential direction of the sidewall of the base 11, and the second soft adhesive layer 112 is connected to the inner wall of the brush head mounting groove 22 in a clamping manner. The second soft adhesive layer 112 is fixedly connected with the base 11. When the second soft rubber layer 112 is not arranged on the base 11, the brush head 10 can be completely arranged in the brush head mounting groove 22, that is, the area of the bottom part is smaller than the section accommodating area of the brush head mounting groove 22; when the base 11 is provided with the second soft rubber layer 112, the area of the base 11 and the second soft rubber layer 112 is larger than that of the brush head mounting groove 22. The second soft rubber layer 112 is deformed to press the inner wall of the head mounting groove 22 when the head 10 is mounted to the head mounting groove 22.

In this embodiment, referring to fig. 10-12, a first magnetic layer 224 is disposed on a side of the inner wall of the bottom of the brush head mounting groove 22 facing the brush head 10, a second magnetic layer 113 is disposed on an outer wall of the bottom of the base 11, the first magnetic layer 224 is magnetically connected to the second magnetic layer 113, the first magnetic layer 224 is disposed with a second through hole 2241, and the second through hole 2241 is disposed opposite to the first through hole 2211. In the embodiment, the first magnetic layer 224 and the second magnetic layer 113 are made of magnetic materials, and the first magnetic layer 224 and the second magnetic layer 113 can attract each other. The first magnetic layer 224 is fixedly connected to the brush head mounting groove 22, and the first magnetic layer 224 may be distributed over the bottom of the brush head mounting groove 22. The second magnetic layer 113 is provided on the base 11 at a position corresponding to the first magnetic layer 224, and the second magnetic layer 113 is fixedly attached to the bottom. In other embodiments, the first magnetic layer 224 may be mounted on the inner sidewall of the brush head mounting groove 22, and the corresponding second magnetic layer 113 may be mounted on the sidewall of the base 11. Furthermore, the second through hole 2241 penetrates through the first magnetic layer 224, the position of the second through hole 2241 on the first magnetic layer 224 corresponds to the first through hole 2211, the penetrating direction of the second through hole 2241 is consistent with the penetrating direction of the first through hole 2211, that is, the first through hole 2211 and the second through hole 2241 form a communicating channel, and the external fixed component can penetrate through the first channel and the second channel to eject the brush head 10. In other embodiments, the first through holes 2211 may be distributed on the side wall of the brush head mounting groove 22, and the first magnetic layer 224 may be distributed on the inner side wall of the brush head mounting groove 22, where the penetrating direction of the second through holes 2241 is a direction oblique to the opening of the brush head mounting groove 22, and the penetrating direction of the second through holes 2241 is consistent with the penetrating direction of the first through holes 2211.

In this embodiment, referring to fig. 13, a penetrating column 114 is disposed on an outer wall of the bottom of the base 11, the penetrating column 114 is disposed opposite to the first through hole 2211, and the penetrating column 114 penetrates through the first through hole 2211. In this embodiment, the penetrating column 114 may be a solid metal column or a fixed plastic column, and the penetrating column 114 may be perpendicular to the bottom of the base 11. The penetrating column 114 may be a cylinder or a cube, and the sectional area is smaller than the area of the first through hole 2211, that is, the penetrating column 114 may penetrate through the first through hole 2211, and the length of the penetrating column 114 is greater than the thickness of the bottom of the brush head mounting groove 22, so that after the brush head 10 is mounted in the brush head mounting groove 22, the penetrating column 114 may penetrate through the first through hole 2211 to the outside of the brush head mounting groove 22. It will be appreciated that the head 10 may be separated from the head mounting channel 22 using an external force applied to the through-posts 114. In other embodiments, the angle between the through column 114 and the bottom of the base 11 may be smaller than or larger than 90 °, and when the brush head 10 is mounted in the brush head mounting groove 22, the through column 114 completely passes through the first through hole 2211, and then the angle of the brush head 10 is adjusted to complete further mounting, in this embodiment, since the through column 114 and the first through hole 2211 have a clamping effect, the connection between the brush head 10 and the brush head mounting groove 22 is strengthened.

In other embodiments, the penetrating column 114 may also be disposed at the bottom of the brush head mounting groove 22, and at this time, the penetrating column 114 may be inserted into the first through hole 2211, and a blocking member is disposed at the top of an end of the penetrating column 114 in the brush head mounting groove 22, and the blocking member has a diameter longer than that of the first through hole 2211, so as to prevent the penetrating column 114 from completely passing through the brush head mounting groove 22 from the brush head mounting groove 22 through the first through hole 2211. It will be appreciated that the head 10 may be separated from the head mounting channel 22 by pushing the through post 114 in the direction of the head 10.

In this embodiment, referring to fig. 14 and 15, the brush head mounting groove 22 further includes a third through hole 225, the third through hole 225 is disposed through a side wall of the brush head mounting groove 22, a penetrating direction of the third through hole 225 is identical to an extending direction of the brush handle 20, the base 11 is provided with a fourth through hole 115, the fourth through hole 115 is disposed on a side wall of the base 11, a penetrating direction of the fourth through hole 115 is identical to an extending direction of the brush handle 20, and the brush handle 20 is communicated with the brush head mounting groove 22 and the brush head 10 through the third through hole 225 and the fourth through hole 115. In this embodiment, the area of the third through hole 225 may be larger than the maximum cross-sectional area of the handle 20, so that the handle 20 can be freely inserted into the third through hole 225, and the third through hole 225 may be circular or rectangular. The fourth through hole 115 is located on the sidewall of the base 11 and penetrates the entire base 11, and the area of the fourth through hole 115 may be larger than the maximum sectional area of the brush handle 20, so that the brush handle 20 may freely penetrate through the fourth through hole 115. Further, when the brush head 10 is installed in the brush head installation slot 22, the third through hole 225 is opposite to the fourth through hole 115, and the third through hole 225 and the fourth through hole 115 form a channel through which the brush handle 20 can penetrate, that is, the extending direction of the brush handle 20, and the penetrating directions of the third through hole 225 and the fourth through hole 115 are on a uniform plane and have the same direction, and the brush handle 20 can penetrate through the third through hole 225 and the fourth through hole 115 at the same time. It can be understood that when the brush head 10 needs to be disassembled, the brush handle 20 only needs to be pulled out from the brush head 10 and the brush head mounting groove 22, and after the brush head 10 is replaced, the brush handle 20 is inserted into the brush head 10 and the brush head mounting groove 22 through the third through hole 225 and the fourth through hole 115 to complete the assembly. In other embodiments, soft glue may be disposed along the circumferential direction of the hole wall in the fourth through hole 115 to enhance the fixing effect between the brush holder 20 and the brush head 10, and when the brush holder 20 is inserted into the fourth through hole 115, the soft glue may be squeezed, and the soft glue may generate resilience to fix the brush holder 20. Further, the brush handle 20 passes through the third through hole 225 and the fourth through hole 115 and reaches the inner wall of the brush head mounting groove 22 at the other end of the third through hole 225, and then cannot move further, thereby completing the assembly of the electric toothbrush 100.

In this embodiment, referring to fig. 16, the brush head mounting groove 22 includes a first receiving cavity 226, a second receiving cavity 227 and a connecting member, the first receiving cavity 226 is connected to the second receiving cavity 227 through the connecting member, and the first receiving cavity 226 and the second receiving cavity 227 are combined to form the brush head mounting groove 22. Specifically, in this embodiment, the first receiving cavity 226 and the second receiving cavity 227 are cubes with openings on two adjacent sides, the opening directions of the first receiving cavity 226 and the second receiving cavity 227 are opposite, an opening side surface of the first receiving cavity 226 and an opening side surface corresponding to the second receiving cavity 227 are combined and spliced to form the brush head mounting groove 22, and the first receiving cavity 226 and the second receiving cavity 227 are connected and disconnected by a connecting member; the opposite side wall of the first receiving cavity 226 is fixedly connected to the handle 20. Further, the connecting member may be a magnetic member, the magnetic member is disposed on a combined surface of the first accommodating cavity 226 and the second accommodating cavity 227, the first accommodating cavity 226 and the second accommodating cavity 227 are connected by a magnetic function, and the first accommodating cavity 226 and the second accommodating cavity 227 can be separated by an external force. It can be understood that the first receiving cavity 226 and the second receiving cavity 227 are separated before the brush head 10 is assembled with the first receiving cavity 226 and the second receiving cavity 227. The first receiving cavity 226 can be inserted into the brush head 10 from one end of the base 11, while the second receiving cavity 227 can be inserted into the base 11 from the other end of the base 11 opposite to the position where the first receiving cavity 226 is installed, and the first receiving cavity 226 and the second receiving cavity 227 fix the brush head 10 through a connector. It will be appreciated that the brush head 10 can be replaced by removing the first and second receiving

cavities

226, 227.

The application provides an electric toothbrush 100 realizes the aggregate erection and the dismantlement of brush head 10 and brush holder 20 through setting up detachable brush head 10 to brush head 10 carries out timely change according to the condition of using, avoids the waste and the environmental pollution that whole change caused from this, has also made things convenient for electric toothbrush's dismantlement maintenance simultaneously.

In summary, although the present application has been described with reference to preferred embodiments, the present application is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application.

Claims

1. The utility model provides an electric toothbrush, its characterized in that, electric toothbrush includes brush head and brush holder, the brush head includes the base and is fixed in the brush hair of base, brush holder one end is equipped with first fixed part of brush, first fixed part of brush is equipped with first mounting groove, first mounting groove detachably of brush accepts the base, the brush holder is equipped with the brush-holder stud that extends by all lateral walls, set up motor, battery, circuit board, treater in the brush-holder stud, first mounting groove bottom of brush is equipped with dismantles ejecting portion, it supplies outside ejecting piece will to dismantle ejecting portion the base is ejecting to break away from brush head mounting groove.

2. The electric toothbrush according to claim 1, wherein the detaching ejector is provided with a first through hole, and the first through hole penetrates in a direction toward the bottom surface of the base.

3. The electric toothbrush according to claim 2, wherein the brush head fixing portion is provided with a first boss and a second boss, the first boss and the second boss are provided on an inner wall of the brush head mounting groove, the second boss and the first boss are provided axisymmetrically with respect to a direction in which the brush handle extends, the brush head fixing portion is provided with a push-out surface which is perpendicular to a bottom surface of the mounting groove through a line connecting the first boss and the second boss, and the first through hole is provided at the bottom of the mounting groove and is located on the push-out surface; the base lateral wall is equipped with first recess, first boss with the second boss with first recess block is connected.

4. The electric toothbrush of claim 2, wherein the base has a third protrusion on a sidewall thereof, the brush head mounting groove has a second groove, and the third protrusion is engaged with the second groove.

5. The electric toothbrush of claim 2, wherein the brush head mounting groove further comprises a first soft adhesive layer extending circumferentially along an inner wall of the brush head mounting groove, the first soft adhesive layer being in snap fit connection with the base side wall.

6. The powered toothbrush as defined in claim 5, wherein the base further comprises a second layer of flexible glue extending circumferentially along the side wall of the base, the second layer of flexible glue being snap-fit to the interior wall of the mounting channel for the brush head.

7. The electric toothbrush according to claim 2, wherein a first magnetic attraction layer is disposed on the inner wall of the bottom of the brush head mounting groove facing the brush head, a second magnetic attraction layer is disposed on the outer wall of the bottom of the base, the first magnetic attraction layer and the second magnetic attraction layer are magnetically attracted, the first magnetic attraction layer is provided with a second through hole, and the second through hole is opposite to the first through hole.

8. The electric toothbrush according to claim 2, wherein the outer wall of the bottom of the base is provided with a through post, the through post is disposed opposite to the first through hole, and the through post passes through the first through hole.

9. The electric toothbrush according to claim 1, wherein the brush head mounting groove further comprises a third through hole, the third through hole is formed through the side wall of the brush head mounting groove, the third through hole is formed in the same direction as the extending direction of the brush handle, the base is provided with a fourth through hole, the fourth through hole is formed in the side wall of the base, the fourth through hole is formed in the same direction as the extending direction of the brush handle, and the brush handle is communicated with the brush head mounting groove and the brush head through the third through hole and the fourth through hole.

10. The electric toothbrush according to claim 1, wherein the brush head mounting groove comprises a first receiving cavity, a second receiving cavity and a connecting member, the first receiving cavity and the second receiving cavity are connected by the connecting member, and the first receiving cavity and the second receiving cavity are combined to form the brush head mounting groove.