CN216365362U

CN216365362U - High stability electric toothbrush actuating mechanism

Info

Publication number: CN216365362U
Application number: CN202121844761.7U
Authority: CN
Inventors: 邢骁
Original assignee: Beisheng Ningbo Electric Appliance Co ltd
Current assignee: Beisheng Ningbo Electric Appliance Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-04-26
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to a high-stability electric toothbrush driving mechanism, which comprises a driving mechanism; the driving mechanism comprises a driving motor, an output shaft arranged at the output end of the driving motor and a handle; the output shaft is in interference fit with a special-shaped sealing piece and is arranged in the handle, and the special-shaped sealing piece comprises a supporting ring which can be supported on the end face of the handle and a connecting part which protrudes upwards from the supporting ring; an embedded part which is integrally formed with the connecting part is arranged in the connecting part; the special-shaped sealing element is in interference fit with the output shaft through the embedding part, and a gap is formed between the outer wall of the embedding part and the inner wall of the connecting part; the special-shaped sealing element is fixedly arranged on the end cover of the driving motor through a supporting ring to realize sealing and shock absorption; by adopting the self-designed special-shaped sealing piece, the stability of the output shaft in the reciprocating rotation of plus and minus 15 degrees is ensured by the interference fit mode, the relative displacement is avoided, and the risk of water inflow is avoided.

Description

High stability electric toothbrush actuating mechanism

Technical Field

The utility model relates to the field of electric toothbrushes, in particular to a high-stability electric toothbrush driving mechanism.

Background

Electric toothbrushes typically include a hand-held drive mechanism, a head removably mounted to the hand-held drive mechanism; the handheld driving mechanism comprises a driving motor, a motor shaft and the like, at present, most parts of the handheld driving mechanism are only provided with a metal or plastic hoop on a sealing piece at the matching position of a motor output shaft and the sealing piece, however, the metal or plastic hoop is used at the matching position of the motor output shaft and the sealing piece, the sealing effect is poor, the resonance of the handheld driving mechanism is obvious, and the service life and the user experience are influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the utility model provides a high-stability electric toothbrush driving mechanism, which solves the problems that the electric toothbrush generally comprises a handheld driving mechanism and a toothbrush head detachably arranged and fixed on the handheld driving mechanism; the handheld driving mechanism comprises a driving motor, a motor shaft and the like, at present, most of the handheld driving mechanism only needs to be provided with a metal or plastic hoop on a sealing piece at the matching position of a motor output shaft and the sealing piece, however, the metal or plastic hoop is used at the matching position of the motor output shaft and the sealing piece, the sealing effect is poor, the handheld driving mechanism has obvious resonance, and the service life and the user experience are influenced

To a problem of (a).

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model relates to a high-stability electric toothbrush driving mechanism, which comprises a driving mechanism; the driving mechanism comprises a driving motor, an output shaft arranged at the output end of the driving motor and a handle; the output shaft is in interference fit with a special-shaped sealing piece and is arranged in the handle, wherein the special-shaped sealing piece comprises a supporting ring which can be supported on the end face of the handle and a connecting part which protrudes upwards from the supporting ring; an embedded part which is integrally formed with the connecting part is arranged in the connecting part; the special-shaped sealing element is in interference fit with the output shaft through the embedding part, and a gap is formed between the outer wall of the embedding part and the inner wall of the connecting part.

Preferably, the device also comprises a frame; the driving motor is arranged in a motor mounting seat of the rack in a matched manner through a shockproof ring sleeve and is in interference fit; the handle is sleeved outside the rack and the driving motor from bottom to top and is matched with the special-shaped sealing piece.

Preferably, the wireless charging device further comprises a power supply component which is arranged in the frame and is used for supplying power, a wireless charging component which is arranged in the frame and is positioned at the tail end of the power supply component, a control component for controlling the on/off of the frame, and a switch button which is arranged on the handle and is used for controlling the control component.

Preferably, the output shaft includes a first portion and a second portion connected to the first portion; the first part is positioned in the driving mechanism, the second part is positioned outside the second part, a clamping groove which surrounds the second part in a circle is formed in the second part, and the special-shaped sealing element is matched at the matching position of the first part and the second part.

Preferably, the power supply assembly is a storable battery; the storable battery card is clamped into the rack and is fixed through the anti-falling bulges.

Preferably, the control assembly comprises a control circuit board fixedly arranged on the frame and a switch button which is arranged on the handle in a matching manner and can control the control circuit board.

Preferably, the wireless charging assembly is arranged in a wireless charging mounting seat at the tail end of the rack in a matching manner; the handle sets up the wireless subassembly sealing connection that charges that has the sealing washer with wireless mount pad cooperation department of charging.

Preferably, the tail end of the rack is provided with a group of elastic buckles integrally formed with the rack; the tail end of the elastic buckle is respectively provided with an outer convex block and an inner convex block; the frame passes through outer lug and the inside elastic connection of handle, and it can fix through interior lug the wireless subassembly that charges is in the wireless mount pad that charges.

(III) advantageous effects

Compared with the prior art, the utility model has the following beneficial effects:

by adopting the self-designed special-shaped sealing piece, the stability of the output shaft in the reciprocating rotation of plus and minus 15 degrees is ensured in an interference fit mode, relative displacement is avoided, and the risk of water inflow is avoided; on the other hand, the interference fit mode can play a role in shock absorption; particularly, the interference combination mode enables the matching surface with the output shaft to be longer, and the combination force with the output shaft is increased.

Drawings

FIG. 1 is a perspective view of a high stability electric toothbrush drive mechanism according to the present invention;

FIG. 2 is a front view of the driving mechanism of the high stability electric toothbrush of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the structure of the driving motor and the output shaft of the driving mechanism of the high stability electric toothbrush according to the present invention;

FIG. 5 is a sectional view taken in the direction B-B in FIG. 4;

FIG. 6 is a perspective view of a profiled seal of a high stability electric toothbrush drive mechanism according to the present invention;

FIG. 7 is a schematic view of a profiled seal in a high stability electric toothbrush drive mechanism according to the present invention;

FIG. 8 is a cross-sectional view taken in the direction of C-C in FIG. 7;

fig. 9 is a front view schematically illustrating the structure of the housing of the driving mechanism of the high stability electric toothbrush according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

This embodiment is explained with reference to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, and fig. 9; wherein, fig. 1 is a schematic perspective view of a driving mechanism of a high stability electric toothbrush according to the present invention; FIG. 2 is a front view of the driving mechanism of the high stability electric toothbrush of the present invention; FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2; FIG. 4 is a schematic view of the structure of the driving motor and the output shaft of the driving mechanism of the high stability electric toothbrush according to the present invention; FIG. 5 is a sectional view taken in the direction B-B in FIG. 4; FIG. 6 is a perspective view of a profiled seal of a high stability electric toothbrush drive mechanism according to the present invention; FIG. 7 is a schematic view of a profiled seal in a high stability electric toothbrush drive mechanism according to the present invention; FIG. 8 is a cross-sectional view taken in the direction of C-C in FIG. 7; fig. 9 is a front view schematically illustrating the structure of the housing of the driving mechanism of the high stability electric toothbrush according to the present invention.

Referring to fig. 1, 2, 3, 6, 7 and 8, fig. 1 is a perspective view illustrating a driving mechanism of a high stability electric toothbrush according to the present invention; FIG. 2 is a front view of the driving mechanism of the high stability electric toothbrush of the present invention; FIG. 3 is a sectional view taken along the line A-A of FIG. 2, and FIG. 6 is a perspective view of a profiled seal of a high stability electric toothbrush drive mechanism according to the present invention; FIG. 7 is a schematic view of a profiled seal in a high stability electric toothbrush drive mechanism according to the present invention; FIG. 8 is a cross-sectional view taken in the direction of C-C in FIG. 7; the utility model relates to a high-stability electric toothbrush driving mechanism, which comprises a driving mechanism 2 capable of generating kinetic energy; the driving mechanism 2 mainly provides power for the brush head assembly, so that the brush head assembly can effectively clean teeth in the oral cavity; the driving mechanism 2 is in interference fit with the output shaft 20 through a special-shaped sealing piece 5; wherein, the special-shaped sealing element 5 comprises a supporting ring 50 which can be supported on the end surface of the driving mechanism 2, and a connecting part 51 which is raised upwards from the supporting ring 50; an embedded part 52 which is integrally formed with the connecting part 51 is arranged in the connecting part; the special-shaped sealing element 5 is in interference fit with the output shaft 20 through the embedding part 52, a gap is formed between the outer wall of the embedding part 52 and the inner wall of the connecting part 51, and the interference fit mode ensures the stability of the output shaft during the positive and negative 15-degree reciprocating rotation, does not generate relative displacement and avoids the risk of water inflow; on the other hand, the interference fit mode can play a role in shock absorption; particularly, the interference combination mode enables the matching surface of the special-shaped sealing element 5 to be longer, the combination force with the output shaft is increased, the connection part of the special-shaped sealing element 5 is thin and is bent, the deformation is absorbed, the traction force is small, and the deformation can be easily absorbed; the special-shaped seal 5 is fixedly arranged on an end cover of the driving motor 22 through a support ring 50 to realize sealing and shock absorption.

Referring to fig. 4 and 5, fig. 4 is a schematic structural view of a driving motor and an output shaft in a driving mechanism of a high stability electric toothbrush according to the present invention; FIG. 5 is a sectional view taken in the direction B-B in FIG. 4; the output shaft 20 comprises a first portion 201 and a second portion 202 connected to the first portion 201; the first part 201 is located inside the driving mechanism 2, the second part 202 is located outside the second part 202, a clamping groove 2021 is formed on the second part 202 and surrounds the second part, and the special-shaped sealing element 5 is matched at the matching position of the first part 201 and the second part 202.

Referring to fig. 2 and 3, fig. 2 is a front view schematically illustrating a driving mechanism of a high stability electric toothbrush according to the present invention; FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2; the driving mechanism 2 comprises a frame 21, a driving motor 22 and a handle 23; the driving motor 22 is arranged in a motor mounting seat of the frame 21 in a matching way through a shockproof ring sleeve 221 and is in interference fit; the handle 23 is sleeved outside the rack 21 and the driving motor 22 from bottom to top and is matched with the special-shaped sealing piece 5, and the power supply assembly 3 is a storable battery; the storable battery card is clamped into the rack 21 and is fixed through a plurality of anti-falling bulges 31; the control assembly 7 comprises a control circuit board fixedly arranged on the frame 21 and a switch button 6 which is arranged on the handle 23 in a matching way and can control the control circuit board; the wireless charging assembly 4 is arranged in a wireless charging mounting seat 210 at the tail end of the rack 21 in a matching manner; the wireless charging assembly 4 with the sealing ring 41 is arranged at the matching position of the handle 23 and the wireless charging mounting seat 210 and is in sealing connection, and the situation that the wireless charging assembly 4 is short-circuited can be avoided through the design of the sealing ring 41.

Referring to fig. 3 and 9, fig. 3 is a sectional view taken along the direction a-a in fig. 2, and fig. 9 is a front view schematically illustrating a frame of a driving mechanism of a high stability electric toothbrush according to the present invention, wherein a set of elastic buckles 211 is integrally formed at the end of the frame 21; the tail end of the elastic buckle 211 is provided with an outer convex block 2111 and an inner convex block 2112 respectively; the frame 21 is elastically connected with the inside of the handle 23 through the outer convex block 2111, and the wireless charging assembly 4 can be fixed in the wireless charging mounting seat 210 through the inner convex block 2112.

The electric toothbrush generally comprises a handheld driving mechanism and a toothbrush head detachably arranged and fixed on the handheld driving mechanism; the handheld driving mechanism comprises a driving motor, a motor shaft and the like, most of the existing handheld driving mechanisms only use a metal or plastic hoop on a sealing piece at the matching position of a motor output shaft and the sealing piece, but the metal or plastic hoop is used at the matching position of the motor output shaft and the sealing piece, so that the sealing effect is poor, the resonance of the handheld driving mechanism is obvious, and the service life and the user experience are influenced; by adopting the self-designed special-shaped sealing piece, the stability of the output shaft in the reciprocating rotation of plus and minus 15 degrees is ensured in an interference fit mode, relative displacement is avoided, and the risk of water inflow is avoided; on the other hand, the interference fit mode can play a role in shock absorption; particularly, the interference combination mode enables the matching surface with the output shaft to be longer, and the combination force with the output shaft is increased.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.

Claims

1. The utility model provides a high stability electric toothbrush actuating mechanism which characterized in that: it comprises a driving mechanism (2); the driving mechanism (2) comprises a driving motor (22), an output shaft (20) arranged at the output end of the driving motor (22) and a handle (23); the output shaft (20) is in interference fit with the special-shaped sealing piece (5) and is arranged in the handle (23), the special-shaped sealing piece (5) comprises a supporting ring (50) which can be supported on the end surface of the handle (23), and a connecting part (51) which protrudes upwards from the supporting ring (50); an embedded part (52) which is integrally formed with the connecting part (51) is arranged in the connecting part; the special-shaped sealing element (5) is in interference fit with the output shaft (20) through an embedding part (52), and a gap is formed between the outer wall of the embedding part (52) and the inner wall of the connecting part (51); the special-shaped sealing piece (5) is fixedly arranged on an end cover of the driving motor (22) through a supporting ring (50) to realize sealing and shock absorption.

2. A high stability electric toothbrush drive mechanism as claimed in claim 1, wherein: also comprises a frame (21); the driving motor (22) is arranged in a motor mounting seat of the frame (21) in a matched mode through a shockproof ring sleeve (221) and is in interference fit; the handle (23) is sleeved outside the rack (21) and the driving motor (22) from bottom to top and is matched with the special-shaped sealing piece (5).

3. A high stability electric toothbrush drive mechanism as claimed in claim 2, wherein: the wireless charging device is characterized by further comprising a power supply assembly (3) which is arranged in the rack (21) and used for providing electric energy, a wireless charging assembly (4) which is arranged in the rack (21) and located at the tail end of the power supply assembly (3), a control assembly (7) used for controlling the on/off of the rack (21), and a switch button (6) which is arranged on the handle (23) and used for controlling the control assembly (7).

4. The high stability electric toothbrush drive mechanism of claim 3, wherein: the output shaft (20) comprises a first portion (201) and a second portion (202) connected to the first portion (201); the first part (201) is positioned inside the driving mechanism (2), the second part (202) is positioned outside the second part (202), and a clamping groove (2021) which surrounds the second part (202) in a circle is formed in the second part; the profiled seal (5) is fitted at the fitting of the first portion (201) and the second portion (202).

5. The high stability electric toothbrush drive mechanism of claim 4, wherein: the power supply assembly (3) is a storable battery; the storable battery card is inserted into the frame (21) and is fixed by a plurality of anti-falling bulges (31).

6. The high stability electric toothbrush drive mechanism of claim 5, wherein: the control assembly (7) comprises a control circuit board fixedly arranged on the frame (21) and a switch button (6) which is arranged on the handle (23) in a matching way and can control the control circuit board.

7. The high stability electric toothbrush drive mechanism of claim 6, wherein: the wireless charging assembly (4) is arranged in a wireless charging mounting seat (210) at the tail end of the rack (21) in a matching manner; the wireless charging assembly (4) with a sealing ring (41) is arranged at the matching position of the handle (23) and the wireless charging mounting seat (210) in a sealing connection mode.

8. The high stability electric toothbrush drive mechanism of claim 7, wherein: the tail end of the frame (21) is provided with a group of elastic buckles (211) which are integrally formed with the frame; the tail end of the elastic buckle (211) is respectively provided with an outer convex block (2111) and an inner convex block (2112); the frame (21) is elastically connected with the interior of the handle (23) through an outer lug (2111), and the wireless charging assembly (4) can be fixed in the wireless charging mounting seat (210) through an inner lug (2112).