CN217525464U

CN217525464U - Electric toothbrush with conveniently replaced brush head

Info

Publication number: CN217525464U
Application number: CN202221397254.8U
Authority: CN
Inventors: 范永能
Original assignee: Ningbo Jianjie Daily & Cosmetics Co ltd
Current assignee: Ningbo Jianjie Daily & Cosmetics Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-04
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a conveniently change electric toothbrush of brush head, including brush holder and brush head, the top of brush holder is provided with the connecting rod, and the root of brush head is formed with the installation department, offers on the installation department terminal surface to be used for connecting rod male spread groove, its characterized in that: the clamping device is characterized in that two clamping blocks are oppositely arranged on the outer side wall of the connecting rod, a pressing strip protruding outwards extends from the lower portion of one clamping block on the outer side wall of the connecting rod, insertion grooves used for inserting the clamping blocks are oppositely arranged on the groove walls of the connection grooves, connection holes communicated with the bottoms of the insertion grooves and used for limiting the clamping blocks are oppositely arranged on the groove walls of the connection grooves, and pressing grooves matched with the pressing strip are formed beside one insertion groove on the groove walls of the connection grooves. The utility model provides an electric toothbrush of brush head is conveniently changed, is convenient for realize the convenient change of brush head, can also avoid the brush head to appear slightly rocking simultaneously.

Description

Electric toothbrush with conveniently replaced brush head

Technical Field

The utility model relates to an electric toothbrush with a brush head convenient to replace.

Background

The movable toothbrush makes the brush head generate high-frequency vibration through the quick rotation or vibration of the motor core, instantaneously decomposes the toothpaste into fine foam to deeply clean slits between teeth, and simultaneously, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massage effect on gum tissues.

Electric toothbrushes on the market at present are various and have two main types: rotatory and vibration, the circular brush head of toothbrush motor drive of rotation type is rotatory, reinforced friction effect when carrying out ordinary action of brushing teeth, there is an electrically driven vibrating motor inside the toothbrush of vibration type, can let the brush head produce the high-frequency oscillation of perpendicular to brush holder direction, but these electric toothbrush all have the problem that is difficult to change the brush head mostly for the user is when the brush head is changed to needs, wastes time and energy, delays time.

Therefore, the Chinese utility model with the current publication number of CN210811683U discloses 'an electric toothbrush convenient for replacing brush head', which comprises a handle, the left side movable mounting of the handle has one end to run through and extend to the button inside the handle, the right side fixed mounting of the button has a circuit board located inside the handle, the inner chamber of the handle and the right side fixed mounting who is located the circuit board have a battery box, the left and right sides of the battery box and the inside that is located the handle all have a secondary coil fixedly mounted. The utility model discloses a structure convenient to brush head is changed, though can more play the purpose of quick replacement brush head, but, at the installation back of brush head, slight rocking appears in the brush head easily, lacks the effect of cramping to the kelly.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to prior art's current situation, provide an electric toothbrush who conveniently changes brush head, be convenient for realize the convenient change of brush head, can also avoid the brush head to appear slightly rocking simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a conveniently change electric toothbrush of brush head, includes brush holder and brush head, and the top of brush holder is provided with the connecting rod, and the root of brush head is formed with the installation department, offers on the installation department terminal surface to be used for connecting rod male spread groove, its characterized in that: the clamping device is characterized in that two clamping blocks are oppositely arranged on the outer side wall of the connecting rod, a pressing strip protruding outwards extends from the lower portion of one clamping block on the outer side wall of the connecting rod, insertion grooves used for inserting the clamping blocks are oppositely arranged on the groove walls of the connection grooves, connection holes communicated with the bottoms of the insertion grooves and used for limiting the clamping blocks are oppositely arranged on the groove walls of the connection grooves, and pressing grooves matched with the pressing strip are formed beside one insertion groove on the groove walls of the connection grooves.

As an improvement, the size of the brush head mounting part is smaller than that of the outer side wall of the bottom of the brush head.

And the connecting rod is provided with a sealing sleeve outside, and the sealing sleeve is arranged outside the mounting part of the brush head.

And the inner side wall of the sealing sleeve is provided with an annular groove, and the lower end of the mounting part is provided with a clamping table clamped into the annular groove.

And in the improvement, an inclined platform is formed at the edge of the inner side wall of the upper end of the sealing sleeve.

And the lower end of the sealing sleeve is screwed on the outer wall of the connecting rod, and the upper end of the sealing sleeve is screwed on the outer side wall of the bottom of the brush head.

And the outer wall of the upper end of the connecting rod is conical.

And the outer wall of the upper end of the connecting rod is provided with a strip-shaped guide groove, and the root of the brush head is provided with a reference block corresponding to the strip-shaped guide groove.

Compared with the prior art, the utility model has the advantages of: during the installation, will brush two last insertion grooves of head and aim at two fixture blocks on the connecting rod and insert to the end, later, rotate the brush head, in the fixture block goes into the connecting hole along insertion groove tank bottom card, realize spacing to the axial of brushing the head, meanwhile, the layering on the connecting rod outer wall compresses tightly in the indent on the connecting groove cell wall, the radial compressing action of layering for brush head installation department keeps cramping the state, when realizing brushing first quick replacement, can also avoid brushing the head and appear slight rocking.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention showing an electric toothbrush with a replaceable brush head;

FIG. 2 is a schematic exploded view of FIG. 1;

FIG. 3 is a partially exploded cross-sectional view of an electric toothbrush with an embodiment of the present invention in which the head is easily replaced;

FIG. 4 is a partially assembled cross-sectional view of an electric toothbrush with an easily replaceable head according to an embodiment of the present invention;

FIG. 5 is a schematic view of the brush head according to the embodiment of the present invention;

fig. 6 is a schematic view of the structure of fig. 5 in another direction.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, the electric toothbrush with a conveniently replaced brush head in the present embodiment comprises a brush handle 1, a brush head 2 and a sealing sleeve 3.

The top of the brush holder 1 is provided with a connecting rod 11, the root of the brush head 2 is formed with a mounting part 21, a connecting groove 210 used for inserting the connecting rod 11 is arranged on the end surface of the mounting part 21, two clamping blocks 111 are oppositely arranged on the outer side wall of the connecting rod 11, a pressing strip 112 protruding outwards is extended from the lower part of one of the clamping blocks 111 on the outer side wall of the connecting rod 11, an insertion groove 211 used for inserting the clamping block 111 is oppositely arranged on the groove wall of the connecting groove 210, a connecting hole 212 communicated with the bottom of the insertion groove 211 and used for limiting the clamping block 111 is oppositely arranged on the groove wall of the connecting groove 210, and a pressing groove 213 matched with the pressing strip 112 is formed beside one of the insertion grooves 211 on the groove wall of the connecting groove 210.

Further, in order to protect the quick-release structure between the brush head 2 and the brush handle 1, the size of the mounting part 21 of the brush head 2 is smaller than that of the outer side wall of the bottom of the brush head 2. Meanwhile, a sealing sleeve 3 is arranged outside the connecting rod 11, and the sealing sleeve 3 is arranged outside the mounting part 21 of the brush head.

In addition, in the embodiment of the utility model, can also be with 3 lower extremes of seal cover revolve fit on the connecting rod 11 outer wall, 3 upper ends of seal cover revolve fit on 2 bottom lateral walls of brush head. When brush head 2 installs, earlier with seal cover 3 to 1 direction rotary motion of brush holder, seal cover 3 keeps away from connecting rod 11, inserts the connection back at installation department 21, and seal cover 3 is the reverse rotation again for the upper end of seal cover 3 and the root of brush head 2 are screwed and are connected simultaneously.

Alternatively, in the embodiment of the present invention, as shown in fig. 3, an annular groove 31 is formed on the inner side wall of the sealing sleeve 3, and a clamping table 214 for clamping into the annular groove 31 is formed at the lower end of the mounting portion 21. After the brush head 2 is arranged on the brush handle 1, the clamping table 214 on the installation part 21 is also clamped into the annular groove 31 of the sealing sleeve 3, so that the movement of the brush head 2 is further limited, and the connection stability of the brush head 2 is improved.

In addition, in order to facilitate the engagement of the engaging portion 21 and the engaging portion 214 when the brush head 2 is attached, an inclined portion 32 is formed on the edge of the inner side wall at the upper end of the sealing sleeve 3. Meanwhile, the outer wall of the upper end of the connecting rod 11 can be designed to be conical. A strip-shaped guide groove is formed on the outer wall of the upper end of the connecting rod 11, and a reference block corresponding to the strip-shaped guide groove is formed at the root of the brush head 2. When the mounting part 21 is inserted, the correct angle insertion of the brush head 2 can be realized only by aligning the reference block with the strip-shaped guide groove.

In conclusion, during installation, the two insertion grooves 211 on the brush head 2 are aligned with the two clamping blocks 111 on the connecting rod 11 and inserted to the bottom, then the brush head 2 is rotated, the clamping blocks 111 are clamped into the connecting holes 212 along the bottoms of the insertion grooves 211, so that axial limiting of the brush head 2 is realized, meanwhile, the pressing strips 112 on the outer wall of the connecting rod 11 are pressed in the pressing grooves 213 on the groove walls of the connecting grooves 210, and the radial pressing effect of the pressing strips 112 enables the installation part of the brush head 2 to be in a tightening state, so that the brush head 2 can be rapidly replaced, and fine shaking of the brush head 2 can be avoided.

Claims

1. The utility model provides a conveniently change electric toothbrush of brush head, includes brush holder (1) and brush head (2), the top of brush holder (1) is provided with connecting rod (11), and the root of brush head (2) is formed with installation department (21), offers on installation department (21) terminal surface to be used for connecting rod (11) male spread groove (210), its characterized in that: two clamping blocks (111) are oppositely arranged on the outer side wall of the connecting rod (11), a pressing strip (112) protruding outwards extends from the lower portion of one clamping block (111) on the outer side wall of the connecting rod (11), insertion grooves (211) used for inserting the clamping blocks (111) are oppositely arranged on the groove walls of the connecting grooves (210), connecting holes (212) communicated with the groove bottoms of the insertion grooves (211) and used for limiting the clamping blocks (111) are oppositely arranged on the groove walls of the connecting grooves (210), and pressing grooves (213) matched with the pressing strips are formed beside one insertion groove (211) on the groove walls of the connecting grooves (210).

2. The electric toothbrush facilitating replacement of a brush head according to claim 1, wherein: the size of the mounting part (21) of the brush head (2) is smaller than that of the outer side wall of the bottom of the brush head (2).

3. The electric toothbrush facilitating replacement of a brush head according to claim 2, wherein: the outside of connecting rod (11) is provided with seal cover (3), and seal cover (3) set up outside installation department (21) of brush head (2).

4. The electric toothbrush facilitating replacement of a brush head according to claim 3, wherein: an annular groove (31) is formed in the inner side wall of the sealing sleeve (3), and a clamping table (214) used for being clamped into the annular groove (31) is formed at the lower end of the mounting portion (21).

5. The electric toothbrush facilitating replacement of a brush head according to claim 4, wherein: an inclined platform (32) is formed on the edge of the inner side wall of the upper end of the sealing sleeve (3).

6. The electric toothbrush facilitating replacement of a brush head according to claim 3, wherein: the lower end of the sealing sleeve (3) is screwed on the outer wall of the connecting rod (11), and the upper end of the sealing sleeve (3) is screwed on the outer side wall of the bottom of the brush head (2).

7. The electric toothbrush facilitating replacement of a brush head according to claim 1, wherein: the outer wall of the upper end of the connecting rod (11) is conical.

8. The electric toothbrush facilitating replacement of a brush head according to claim 7, wherein: a strip-shaped guide groove is formed in the outer wall of the upper end of the connecting rod (11), and a reference block corresponding to the strip-shaped guide groove is formed at the root of the brush head (2).