CN115363801A - General nursing subassembly of electric toothbrush - Google Patents

Abstract

The invention discloses a universal nursing component for an electric toothbrush, which comprises an electric toothbrush handle, a connecting piece and a nursing piece which are sequentially connected, wherein the nursing piece comprises a connecting rod and a nursing part, the bottom end of the connecting rod is provided with a connecting groove, the connecting piece is detachably connected in the connecting groove, a steering limiting bulge is arranged in the connecting groove, the connecting piece is provided with a steering limiting concave table matched with the steering limiting bulge, one end of the connecting piece, which is far away from the connecting groove, is provided with a connecting cavity, the peripheral surface of the connecting piece is provided with a first abutting hole communicated with the connecting cavity, and a first abutting sheet is arranged in the first abutting hole. This application is through seting up the spread groove on nursing the piece and can dismantle the connecting piece of connection, through establishing the connecting piece into the structure that can be connected with different electric toothbrush handles, the connecting piece is as nursing the pivot of being connected of piece and electric toothbrush handle when using, can connect nursing the piece on different electric toothbrush handles, and the convenience is changed the use to nursing the piece, effectively solves the toothbrush head and changes the restricted problem.

Description

General nursing subassembly of electric toothbrush

Technical Field

The invention belongs to the field of electric toothbrushes, and particularly relates to a universal nursing component for an electric toothbrush.

Background

Electric toothbrush generally comprises electric toothbrush handle and removable toothbrush head, electric toothbrush handle generally includes handheld part and the actuating lever that is located handheld part, the actuating lever takes irregular cylinder for upper portion, the brush head is kept away from the one end of brush hair and is equipped with the recess with actuating lever looks adaptation, along with electric toothbrush's development, come out more and more electric toothbrush brand on the market, but because the difference of brand and model and producer are for the benefit maximize, different electric toothbrush all have own dedicated toothbrush head, the customer can only purchase the toothbrush head that the producer produced the high price when needing to change the toothbrush head, the user of service has received very big restriction when changing the toothbrush head, but the shape of actuating lever has the change on the electric toothbrush handle, but wholly still keep having the cylinder or the crooked irregular cylinder of semicircle for upper portion, the inventor is through studying and designing a general nursing subassembly of electric toothbrush to the actuating lever on electric toothbrush handle between different brands and the model, make things convenient for the user to change the toothbrush head, needn't confine to electric toothbrush dedicated toothbrush head, and then solve the problem that the user of receiving very big restriction when changing the toothbrush head.

Patent with application number CN201821036918.1 proposes toothbrush head and electric toothbrush, proposes in this patent to adopt softened moulding portion to make the last actuating lever of electric toothbrush get into, forms fixedly to last actuating lever of electric toothbrush after moulding portion solidification, but this technical scheme need heat up the toothbrush head when using and changing and cool down the back and can change or use, and the operation is inconvenient.

The patent with the application number of CN201320342323.X provides a universal electric toothbrush brush head, which comprises a brush head body, wherein the brush head body consists of a brush head, a brush head plug, a spring and a decorative ring, the upper part of the brush head is an inner cavity body, a limiting groove is concavely arranged outside the inner cavity body, and the decorative ring is arranged in the limiting groove; one side of the brush head plug body is provided with a spring clamping groove, the other side of the brush head plug body is provided with an inward-bent clamping hook, the spring is arranged on the spring clamping groove, and the brush head plug is inserted into the inner cavity of the brush head. The utility model discloses a brush head stopper will brush the head and realize the interference hookup with the main part, has solved the great problem that leads to toothbrush brush head and the connection of machine spindle to appear becoming flexible, droing of the great wearing and tearing that electric toothbrush exists for a long time always, improves the suitability, the durability of electric toothbrush brush head, reduction in production and use cost. However, in the patent, the structure is complicated, the process is complicated in the production process, and a customer is easy to damage during replacement due to the complicated structure.

Disclosure of Invention

The invention aims to solve the technical problem of providing a universal nursing component for an electric toothbrush, which solves the problem that the replacement of the toothbrush head is limited at present.

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a general nursing subassembly of electric toothbrush, install connecting piece and nursing piece on the electric toothbrush handle of electric toothbrush in proper order including electric toothbrush handle, the quantity of nursing piece is one at least, nursing piece includes connecting rod and nursing portion, nursing portion sets up on the connecting rod, the connecting rod bottom is provided with the spread groove, the connection can be dismantled in the spread groove, be provided with in the spread groove and turn to spacing arch, be equipped with on the connecting piece and turn to spacing concave station that turns to of spacing protruding looks adaptation, the one end that the spread groove was kept away from to the connecting piece is equipped with the connection chamber, the connecting piece outer peripheral face is provided with the first butt hole with the connection chamber intercommunication, be provided with first butt piece in the first butt hole, the connection chamber is used for linking to each other with the electric toothbrush handle.

Further, the nursing part comprises bristles, and the nursing part is arranged on one side of the upper end of the connecting rod.

Further, the nursing part comprises a massage head.

Further, turn to spacing concave station orientation and turn to spacing bellied one side and be provided with the second butt hole that communicates with the connection chamber, the downthehole second butt piece that is provided with of second butt, first butt hole and the setting of just misplacing of second butt hole symmetry, first butt hole is located second butt hole below.

Furthermore, the outer peripheral surface of the connecting piece is provided with a clamping bulge in a surrounding manner, and a clamping groove matched with the clamping bulge is arranged in the connecting groove.

Further, first butt hole extends to the screens arch, and one side that the connection chamber was kept away from to first butt piece is provided with the butt arch with draw-in groove looks adaptation.

Furthermore, one end of the connecting cavity, which is far away from the connecting groove, is provided with at least one deformation groove, and the deformation groove is communicated with the connecting cavity.

Furthermore, one end of the connecting piece, which is far away from the connecting groove, is provided with a base.

Furthermore, the base is provided with at least one circle of clamping tables, and the connecting grooves are internally provided with annular grooves matched with the clamping tables and/or the base.

Furthermore, turn to spacing protruding orientation and turn to one side of spacing concave station and nursing portion bottom parallel arrangement.

The invention has the following remarkable beneficial effects:

1. the invention relates to a general nursing component for an electric toothbrush, which comprises an electric toothbrush handle, and a connecting piece and a nursing piece which are sequentially arranged on the electric toothbrush handle, wherein the nursing piece comprises a connecting rod and a nursing part, the nursing part comprises bristles, the bottom end of the connecting rod is provided with a connecting groove, the connecting piece is detachably connected in the connecting groove, a steering limiting bulge is arranged in the connecting groove, the connecting piece is provided with a steering limiting concave table matched with the steering limiting bulge, one end of the connecting piece, which is far away from the connecting groove, is provided with a connecting cavity, the peripheral surface of the connecting piece is provided with a first abutting hole communicated with the connecting cavity, and the first abutting hole is internally provided with a first abutting piece. This application is through seting up the spread groove on nursing the piece and can dismantle the connecting piece of connection, through establishing the connecting piece into the structure that can be connected with different electric toothbrush handles, the connecting piece is as nursing the centre of connection of piece and electric toothbrush handle when using, can connect the connecting piece on different electric toothbrush handles, and the convenience is changed the use to nursing the piece, effectively solves the toothbrush head and changes the restricted problem.

2. In order to increase the connection inseparable degree of connecting piece and nursing piece, turn to spacing concave station orientation turn to spacing bellied one side be equipped with connect the second butt hole of chamber intercommunication and establish the downthehole second butt piece in second butt, the setting through second butt hole and second butt piece can make actuating lever and second butt piece on the electric toothbrush handle produce the butt when electric toothbrush handle is connected with the connecting piece, and then make second butt piece produce the butt to the spread groove inner wall, further increase and connect the inseparable degree between connecting piece and the spread groove.

3. First butt hole and the setting of second butt hole symmetry and dislocation can carry out the butt of different positions to the actuating lever on the electric toothbrush handle, and the position in first butt hole and second butt hole cooperatees and to form the effort of interlock form, and the increase is fixed to the actuating lever on the electric toothbrush, makes things convenient for the nursing piece along with the actuating lever is together vibrated on the electric toothbrush handle.

4. The setting up of screens arch and draw-in groove can make the connecting piece joint in the spread groove, increases the fastening degree between connecting piece and the nursing piece, avoids in the use because the rotation of nursing piece makes the butt power between connecting piece and the spread groove lose the effect and lead to the connecting piece to break away from the condition emergence of spread groove.

5. First butt hole extends to the protruding department of screens and is equipped with on the first butt piece with the bellied setting of butt of draw-in groove looks adaptation, the protruding and draw-in groove between connection fastening degree of increase screens that can be further.

6. When electric toothbrush used and production, in order to prevent that the actuating lever of nursing piece on electric toothbrush handle from producing and rotating to lead to nursing one not hard up, turn to spacing arch and the brush hair bottom parallel of nursing portion when for the brush hair and can make things convenient for production or user of service to find the basic point of nursing one installation, conveniently produce and use.

7. The one end of keeping away from the spread groove in connecting the chamber is equivalent to offering the opening in offering of the deformation groove, and the setting in deformation groove can conveniently take place deformation at the connecting piece when the actuating lever gets into and connects the chamber to make the connecting piece get into nursing piece more easily and get into better parcel abnormal shape actuating lever in back.

8. Because the shape of electric toothbrush handle is different, in order to make nursing piece and electric toothbrush handle carry out better connection, the one end of keeping away from the spread groove at the connecting piece is equipped with the base, comes to pack the clearance between nursing piece and the electric toothbrush handle through setting up of base, can avoid water stain to cause the influence to electric toothbrush's work when increasing the aesthetic property.

9. The annular groove in screens platform and the spread groove that is equipped with on the base can increase the area of contact of connecting piece and spread groove on the one hand, and on the other hand prevents to have water stain direct refluence to advance between connecting piece and the spread groove when increasing the aesthetic property.

10. The nursing part can be provided with bristles or massage heads, so that the application range of the electric toothbrush can be enlarged, the functions of the electric toothbrush are increased, and users can brush teeth or massage by replacing different nursing parts of the nursing part.

Drawings

FIG. 1 is a schematic cross-sectional view of a general electric toothbrush care assembly according to embodiment 1 of the present invention;

FIG. 2 is a schematic cross-sectional view of a toothbrush head in a universal toothbrush care assembly according to example 1 of the present invention;

FIG. 3 is a cross-sectional view of a connector of the electric toothbrush universal nursing assembly in accordance with embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view of a connector of the electric toothbrush universal care assembly in accordance with embodiment 2 of the present invention;

FIG. 5 is a schematic cross-sectional view of a general care assembly for an electric toothbrush in accordance with embodiment 3 of the present invention;

FIG. 6 is an enlarged schematic view of a general electric toothbrush care assembly of FIG. 5 in accordance with embodiment 3 of the present invention;

FIG. 7 is a cross-sectional schematic view of a general care assembly for an electric toothbrush in accordance with embodiment 4 of the present invention;

FIG. 8 is a cross-sectional view of a connection member of a general care assembly for an electric toothbrush in accordance with embodiment 4 of the present invention;

FIG. 9 is a schematic bottom view of a connector of the universal toothbrush care assembly of embodiment 5 of the present invention;

FIG. 10 is a schematic view of a portion of the attachment of a link member to a toothbrush head in a universal treatment assembly for an electric toothbrush in accordance with example 6 of the present invention;

FIG. 11 is a cross-sectional view showing the structure of the connection member of the electric toothbrush universal nursing assembly in accordance with embodiment 6 of the present invention;

FIG. 12 is a partial schematic view of the attachment member to the head of the electric toothbrush in a universal treatment assembly of an embodiment 7 of the present invention;

FIG. 13 is a front view of a general electric toothbrush care assembly in accordance with embodiment 1 of the present invention;

FIG. 14 is a schematic front view showing a spherical structure of a nursing portion of the electric toothbrush universal nursing assembly in accordance with the embodiment 8 of the present invention;

FIG. 15 is a schematic front view of a convex spherical body as a nursing part of the electric toothbrush universal nursing assembly in accordance with the embodiment 8 of the present invention;

FIG. 16 is a front view of a flat body of a disposable part of a universal cleaning assembly for an electric toothbrush in accordance with an embodiment 8 of the present invention.

In the attached drawings, 1-an electric toothbrush handle, 101-a connecting rod, 102-a nursing part, 2-a connecting piece, 4-a connecting groove, 5-a turning limiting protrusion, 6-a turning limiting concave platform, 7-a connecting cavity, 8-a first butting hole, 9-a first butting piece, 10-a second butting hole, 11-a second butting piece, 12-a clamping protrusion, 13-a clamping groove, 14-a butting protrusion, 15-a deformation groove, 16-a base, 17-a clamping platform and 18-an annular groove.

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Example 1

As shown in figures 1, 2, 3 and 13, a general nursing component for electric toothbrushes comprises an electric toothbrush handle 1, a connecting part 2 and a nursing part are sequentially arranged on the electric toothbrush handle 1, the nursing part comprises a connecting rod 101 and a nursing part 102 arranged on the connecting rod 101, the nursing part 102 comprises bristles in the embodiment, the nursing part 102 is arranged on one side of the upper part of the connecting rod 101 in the embodiment, the bottom end of the connecting rod 101 is inwards recessed and provided with a connecting groove 4, the inner side wall of the connecting groove 4 is provided with a semi-cylindrical steering limit bulge 5, the connecting part 2 is detachably connected in the connecting groove 4 in an inserting way, the bottom end of the connecting part 2 is matched with the bottom end of the connecting groove 4, the connecting part 2 is formed by plastic injection molding and has certain deformation, a steering limit concave platform 6 matched with the steering limit bulge 5 is arranged on the connecting part 2, one end of the connecting part 2 far away from the connecting groove 4 is provided with a connecting cavity 7 connected with a driving rod on the electric toothbrush handle 1, the connection cavity 7 can be a through hole penetrating the connection element 2, the connection cavity 7 can also be closed at one open end, in this embodiment, the upper end of the bottom end of the connection cavity 7 is closed, the outer peripheral surface of the connection element 2 is provided with a first abutting hole 8 communicated with the connection cavity 7, a first abutting sheet 9 is arranged in the first abutting hole 8, the first abutting hole 8 is positioned below the steering limit concave table 6, one side of the steering limit concave table 6 facing the steering limit bulge 5 is provided with a second abutting hole 10 communicated with the connection cavity 7, the first abutting hole 8 and the second abutting hole 10 are symmetrically and staggeredly arranged, the first abutting hole 8 is positioned below the second abutting hole 10, a second abutting sheet 11 is arranged in the second abutting hole 10, when the driving rod enters the connection element 2 on the electric toothbrush handle 1, the driving rod can abut against the first abutting sheet 9, the second abutting sheet 11 abuts against the inner wall of the connecting cavity 7, the first abutting sheet 9 and the second abutting sheet 11 can reversely abut against the inner wall of the connecting groove 4 when abutting is carried out to increase the friction force between the connecting piece 2 and the connecting groove 4, so that the connection tightness between the connecting piece 2 and the nursing piece is increased, the driving rod abuts against the inner wall of the connecting cavity 7 to expand the connecting piece 2 to change the diameter of the connecting piece 2, and the connection tightness among the electric toothbrush handle 1, the connecting piece 2 and the nursing piece is increased through the deformation of the connecting piece 2; when the electric toothbrush is used, the driving rod on the electric toothbrush handle 1 can rotate or vibrate in a reciprocating mode within a certain angle, so that a rotating basic point of a nursing part can be conveniently determined by arranging the steering limiting protrusion 5 in parallel to the bottom ends of the bristles, and the rotating angle of the nursing part can be conveniently determined for use by a person; after the nursing piece is connected through connecting piece 2 and electronic toothbrush handle 1, because electronic toothbrush handle 1's shape is different, there is the clearance between nursing piece and the electronic toothbrush handle 1, it fills to be equipped with base 16 through the one end of keeping away from spread groove 4 at connecting piece 2 to the clearance between nursing piece and the electronic toothbrush handle 1, it needs to notice that base 16 does not meet with electronic toothbrush handle 1 completely but leaves certain movable gap and make nursing piece move under the drive of electronic toothbrush handle 1, base 16 is preferred loudspeaker form, on the one hand, setting up of base 16 can fill the clearance and play the guard action, base 16 can make things convenient for water stain to flow away along base 16 for loudspeaker form and can not get into between toothbrush head and the electronic toothbrush handle 1 and cause the damage to electronic toothbrush handle 1.

When using, at first insert connecting piece 2 in spread groove 4, owing to turn to the setting of spacing arch 5, connecting piece 2 can't rotate in spread groove 4 after turning to spacing concave station 6 and turning to spacing arch 5 and cooperate, insert the drive rod in connecting chamber 7 on the electronic toothbrush handle 1, because the drive rod upper end is semicircle form on the electronic toothbrush handle 1, so the drive rod upper end can directly get into after getting into connecting chamber 7 and turn to spacing concave station 6 and connect the space between the 7 inner walls of chamber, this moment because first butt joint piece 9, second butt joint piece 11 and connecting piece 2 have the setting of certain deformation, the drive rod outside can be to first butt joint piece 9, second butt joint piece 11 and connecting chamber 7 produce certain butt effect, first butt joint piece 9 and second butt joint piece 11 can produce the butt with spread groove 4 inner wall and increase the drive rod after receiving the butt of drive rod, the frictional force between connecting piece 2 and the toothbrush head, the position setting of first butt joint piece 9 and second butt joint piece 11 can produce certain butt force effect to drive rod 4 inner walls and increase the drive rod and the basal seat of the mouth of a person who is connected the mouth of a kitchen sink to the drive rod, connecting piece 2 and the mouth of a kitchen sink is connected to the mouth of a kitchen.

To sum up, this application is connected with connecting piece 2 through seting up spread groove 4 on nursing the piece and can dismantling, through establishing connecting piece 2 into the structure that can be connected with different electric toothbrush handle 1, connecting piece 2 is as the connection maincenter of nursing piece and electric toothbrush handle 1 when using, can connect nursing the piece on different electric toothbrush handle 1, conveniently change the use to nursing the piece, need not to look for the special toothbrush head with this brand looks adaptation, the restricted problem of present toothbrush head change has effectively been solved.

Example 2

As shown in fig. 4, the present embodiment has substantially the same structure as embodiment 1, and as another embodiment of the present embodiment, the present embodiment is different from embodiment 1 in that the second abutting hole 10 is located below the steering limiting concave table 6, and the second abutting hole 10 is located below the steering limiting concave table 6 and can be engaged with the first abutting piece 9 to abut against the driving rod on the same side to generate an abutting effect on the driving rod.

Example 3

As shown in fig. 5 and fig. 6, this embodiment is roughly the same as the structure of embodiment 1, this embodiment is further optimized on the basis of embodiment 1, connecting piece 2 outer peripheral face lower part is provided with the protruding screens of round 12, the protruding screens 12 is located first butt hole 8 below, protruding screens 12 is the snap ring of encircleing at connecting piece 2 outer peripheral face in this embodiment, draw-in groove 13 with the protruding 12 looks adaptations of screens is seted up in spread groove 4, through the joint of protruding screens 12 with draw-in groove 13 after connecting piece 2 gets into spread groove 4, can be more firm fix connecting piece 2 in spread groove 4, increase the firm degree between connecting piece 2 and the toothbrush head.

Example 4

As shown in fig. 7 and 8, the structure of the present embodiment is substantially the same as that of embodiment 3, and the present embodiment is further optimized based on embodiment 3, in the present embodiment, the opening of the first abutting hole 8 extends to the position of the clamping protrusion 12, one end of the first abutting sheet 9 is fixedly connected to the inner wall of the first abutting hole 8, the other end of the first abutting sheet 9 is a free end and extends to the position of the clamping protrusion 12, one side of the other end of the first abutting sheet 9, which is far away from the connecting cavity 7, is provided with an abutting protrusion 14 adapted to the clamping groove 13, the abutting protrusion 14 can abut against the clamping groove 13 by abutting the driving rod on the first abutting sheet 9 on the electric toothbrush handle 11, and the connecting fastening degree between the electric toothbrush handle 11, the connecting piece 2 and the toothbrush head is further increased.

Example 5

As shown in fig. 9, the structure of this embodiment in embodiment 4 is substantially the same, this embodiment is further optimized on the basis of embodiment 4, at least one deformation groove 15 has been seted up to the one end that connecting groove 4 was kept away from to connecting chamber 7, the quantity in this embodiment deformation groove 15 is two, two deformation grooves 15 all are linked together with connecting chamber 7, it can make things convenient for the actuating lever to take place deformation when entering connecting chamber 7, make things convenient for the actuating lever to get into inside connecting chamber 7 to set up deformation groove 15 through keeping away from connecting groove 4 one end at connecting chamber 7.

Example 6

As shown in fig. 10 and fig. 11, the structure of the present embodiment is substantially the same as that of the embodiment 5, the present embodiment is further optimized on the basis of the embodiment 5, at least one circle of the locking platform 17 is disposed on the base 16, the connecting groove 4 is internally provided with an annular groove 18 adapted to the locking platform 17, on one hand, the locking platform 17 and the annular groove 18 can increase the contact area between the connecting element 2 and the connecting groove 4, so as to facilitate the connection with the connecting element 2, and on the other hand, the aesthetic property is increased, and simultaneously, water stains are prevented from directly flowing back between the connecting element 2 and the connecting groove 4.

Example 7

As shown in fig. 12, this embodiment is substantially the same as the embodiment 5, and this embodiment provides another embodiment based on the embodiment 5, in this embodiment, the connecting groove 44 at the bottom end of the toothbrush head 1 is provided with an annular groove 1818 matching with the retaining platform 1717 and the base 1616, the annular groove 1818 matching with the retaining platform 1717 and the base 1616 can include the base 1616 and the retaining platform 1717, and the bottom end of the base 1616 is flush with the bottom end of the toothbrush head 1, so as to adapt to different electric toothbrush handles 11.

Example 8

As shown in fig. 14, 15 and 16, this embodiment has substantially the same structure as that of embodiment 6 or 7, and as another embodiment of the present application, this embodiment is different from embodiment 6 or 7 in that, in order to increase the function of the electric toothbrush handle 1, the nursing part 102 may further include a massage head, the massage head includes a ball, a flat body, or a ball with a protrusion on the surface, and the nursing member is driven by the electric toothbrush handle 1 to vibrate or rotate, so as to drive the nursing part 102 in the nursing member to massage and relax the skin, thereby increasing the function of the electric toothbrush and expanding the application range of the electric toothbrush.

At present, the technical scheme of the application has been subjected to pilot plant test, namely small-scale experiment before large-scale mass production of products; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been started.

Claims (10)

1. A general nursing assembly for electric toothbrushes, comprising an electric toothbrush handle (1), characterized in that: connecting piece (2) and nursing piece have set gradually on electric toothbrush handle (1), the quantity of nursing piece is one at least, nursing piece includes connecting rod (101) and nursing portion (102), nursing portion (102) set up on connecting rod (101), the connecting rod bottom is provided with spread groove (4), connecting piece (2) can be dismantled and connect in spread groove (4), be provided with in spread groove (4) and turn to spacing arch (5), be equipped with on connecting piece (2) with turn to spacing concave station (6) of turning to of spacing arch (5) looks adaptation, connecting piece (2) are kept away from the one end of spread groove (4) is equipped with connection chamber (7), connecting piece (2) outer peripheral face be provided with connect first butt hole (8) of chamber (7) intercommunication, be provided with first butt piece (9) in first butt hole (8), connect chamber (7) be used for with electric toothbrush handle (1) links to each other.

2. An electric toothbrush universal care assembly according to claim 1, wherein: the nursing part (102) comprises bristles, and the nursing part (102) is arranged on one side of the upper end of the connecting rod (102).

3. An electric toothbrush universal care assembly according to claim 1, wherein: the care section (102) includes a massage head.

4. An electric toothbrush universal care assembly according to claim 2 or 3, wherein: turn to spacing concave station (6) orientation turn to one side of spacing arch (5) be provided with connect second butt hole (10) of chamber (7) intercommunication, be provided with second butt piece (11) in second butt hole (10). The first abutting-joint hole (8) and the second abutting-joint hole (10) are symmetrically arranged in a staggered mode, and the first abutting-joint hole (8) is located below the second abutting-joint hole (10).

5. An electric toothbrush universal care assembly according to claim 4, wherein: the outer peripheral surface of the connecting piece (2) is provided with clamping bulges (12) in a surrounding manner, and clamping grooves (13) matched with the clamping bulges (12) are arranged in the connecting grooves (4).

6. An electric toothbrush universal care assembly according to claim 5, wherein: first butt hole (8) extend to screens arch (12), first butt piece (9) keep away from connect one side of chamber (7) be provided with the butt arch (14) of draw-in groove (13) looks adaptation.

7. An electric toothbrush universal care assembly according to claim 6, wherein: one end of the connecting cavity (7) far away from the connecting groove (4) is provided with at least one deformation groove (15), and the deformation groove (15) is communicated with the connecting cavity (7).

8. An electric toothbrush universal care assembly according to claim 7, wherein: one end of the connecting piece (2) far away from the connecting groove (4) is provided with a base (16).

9. The electric toothbrush universal care assembly of claim 8, wherein: the base (16) is provided with at least one ring of clamping table (17), and the connecting groove (4) is internally provided with an annular groove (18) matched with the clamping table (17) and/or the base (16).

10. An electric toothbrush universal care assembly according to claim 2, wherein: the side, facing the steering limit concave table (6), of the steering limit bulge (5) is parallel to the bottom end of the nursing part (102).

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