CN208677625U - Electric toothbrush and its waterproof sealing structure - Google Patents
Electric toothbrush and its waterproof sealing structure Download PDFInfo
- Publication number
- CN208677625U CN208677625U CN201820175800.0U CN201820175800U CN208677625U CN 208677625 U CN208677625 U CN 208677625U CN 201820175800 U CN201820175800 U CN 201820175800U CN 208677625 U CN208677625 U CN 208677625U
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- drive shaft
- waterproof sealing
- electric toothbrush
- handle portion
- sealing structure
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Abstract
The utility model discloses a kind of electric toothbrush and its waterproof sealing structure, the waterproof sealing structure includes the waterproof sealing component for connecting the electrodynamic element of electric toothbrush and stretching out the drive shaft of the power toothbrush handle portion opening, the handle portion opening inner side being arranged in and is a tight fit in the drive shaft；The waterproof sealing component includes the sealing shroud with central through hole, and the drive shaft passes through the central through hole and stretches out the opening, and mutually matched concaveconvex structure is equipped between the inner wall of the central through hole and the outer peripheral surface of the drive shaft.In the electric toothbrush of the utility model, the cooperation that the sealing shroud and drive shaft of waterproof sealing component pass through concaveconvex structure, so that mating surface is not moved towards on longitudinal profile between the two for straight line, waterproof seal between the two is improved, it is further provided the waterproof performance of electric toothbrush.
Description
Technical field
The utility model relates to electric toothbrush technology field more particularly to a kind of electric toothbrush and its waterproof sealing structures.
Background technique
Electric toothbrush is increasingly had been favored by people due to the advantages that its frequency is high, cleaning effect is good and easy to use.
Electric toothbrush includes the shell that can be used as handle, electric assembly, waterproof jacket and brush head substantially.Brush head cooperates in one end of shell
On, electric assembly is mounted in shell, and the aperture that drive shaft stretches out shell one end cooperates in brush head, output power to brush
Head, waterproof jacket are embedded between the aperture and drive shaft of shell, play waterproof action.
In existing electric toothbrush, the inner hole wall surface of waterproof jacket directly cooperates on the outer peripheral surface of drive shaft or waterproof
Set be directly to and axis has step, then tensed by spring fastening, and the assembling of spring is difficult.In longitudinal sectional drawing, the two
Mating surface is straight line trend, and leakproofness so between the two is not high, and outside moisture enters shell readily along the face of fitting a straight line
In, influence the normal operation of internal electric part.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of waterproof of electric toothbrush for improving waterproof seal
Sealing structure and electric toothbrush with the sealing structure.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of waterproof sealing of electric toothbrush
Structure, the waterproof sealing structure include connecting the electrodynamic element of electric toothbrush and stretching out the power toothbrush handle portion to be open
Drive shaft, the waterproof sealing component that the handle portion opening inner side is set and is a tight fit in the drive shaft；The waterproof
Seal assembly includes the sealing shroud with central through hole, and the drive shaft passes through the central through hole and stretches out the opening, described
Mutually matched concaveconvex structure is equipped between the inner wall of central through hole and the outer peripheral surface of the drive shaft.
Preferably, the concaveconvex structure includes the annular groove being at least arranged in together on the drive shaft outer peripheral surface, at least
One bulge loop being correspondingly arranged on the central through hole inner wall.
Preferably, the concaveconvex structure include at least one be arranged on the drive shaft outer peripheral surface bulge loop, at least one
Road is correspondingly arranged at the annular groove on the central through hole inner wall.
Preferably, the sealing shroud includes the first canister portion for being a tight fit in the drive shaft periphery and first canister portion
Connect and is spaced the second canister portion for being coated on the first canister portion periphery；The interior bone of first canister portion forms the center
Through-hole.
Preferably, the sealing shroud further includes interconnecting piece, and the interconnecting piece is connected to first canister portion and the second canister portion
One end between.
Preferably, the other end bending of second canister portion extends to form the positioning region for being engaged on electrodynamic element.
The utility model also provides a kind of electric toothbrush, is equipped with the handle portion of opening including one end, is arranged in the handle
Electrodynamic element, cooperation waterproof described in the brush head and any of the above item on one end that the handle portion has opening in portion
Sealing structure；
Electrodynamic element described in the driving axis connection of the waterproof sealing structure and the opening for stretching out the handle portion, tight fit
In the brush head；The waterproof sealing component of the waterproof sealing structure is arranged in the handle portion opening inner side and is a tight fit in
On the drive shaft periphery.
Preferably, the electric toothbrush further includes the battery core being arranged in the handle portion, the battery core with it is described electronic
Unit electrical connection.
Preferably, the part that the drive shaft stretches out the handle portion forms output shaft；The brush head is equipped with described in confession
Output shaft grafting duct therein；
The opposite end in the ends of the output shaft and the duct is interference fitted, the position of the output shaft
The axial direction part clearance fit of axial direction part and the duct between both ends.
Preferably, the axial direction part in the duct is equipped at least one protrusion, and the axial direction part correspondence of the output shaft is set
It is fluted；The protrusion engaging is in the groove；And/or
The axial direction part of the output shaft is equipped with first step portion, and the axial direction part in the duct is correspondingly provided with second step
Portion；The first step portion and second step portion male-female engagement.
The utility model has the beneficial effects that the sealing shroud and drive shaft of waterproof sealing component be by the cooperation of concaveconvex structure,
So that mating surface is not moved towards on longitudinal profile between the two for straight line, waterproof seal between the two is improved, is further mentioned
For the waterproof performance of electric toothbrush.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the schematic diagram of the section structure of the electric toothbrush of an embodiment of the present invention；
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the electric toothbrush of an embodiment of the present invention, including handle portion 1, electrodynamic element 2, brush head 3, drive
Moving axis 10 and waterproof sealing component 20.Handle portion 1 is hollow, and one end has opening；Electrodynamic element 2 is arranged in handle portion 1, drives
Moving axis 10 connects electrodynamic element 2 and stretches out the opening of handle portion 1, the setting of waterproof sealing component 20 1 opening inner side of handle portion simultaneously
It is a tight fit in drive shaft 10.Waterproof sealing component 20 and drive shaft 10 are formed together waterproof sealing structure 4, by handle portion 1
Opening sealing, plays the role of waterproof.
In conjunction with Fig. 1,2, waterproof sealing component 20 includes the sealing shroud 21 with central through hole, and drive shaft 10 is logical across center
The opening of hole stretching handle portion 1.The generally elastic material of sealing shroud 21 is made, such as silica gel.The inner wall of central through hole and driving
Mutually matched concaveconvex structure is equipped between the outer peripheral surface of axis 10, so that mating surface is in longitudinal direction between sealing shroud 21 and drive shaft 10
It is not moved towards on section for straight line, improves waterproof seal between the two.
In the present embodiment, concaveconvex structure includes the annular groove 51 being at least arranged in together on 10 outer peripheral surface of drive shaft, at least
One bulge loop 52 being correspondingly arranged on 21 central through hole inner wall of sealing shroud.When drive shaft 10 passes through central through hole, central through hole
Inner wall and 10 outer peripheral surface of drive shaft while abut against, bulge loop 52 is correspondingly embedded in annular groove 51, forms male-female engagement.
In other embodiments, the setting position of annular groove 51 and bulge loop 52 can be interchanged, it may be assumed that the setting of bulge loop 52 is driving
On 10 outer peripheral surface of axis, annular groove 51 is correspondingly arranged on central through hole inner wall.
Specifically, sealing shroud 21 can be single layer structure or double-layer structure.In double-layer structure, sealing shroud 21 may include close-fitting
Close 10 periphery of drive shaft the first canister portion 211, connect with the first canister portion 211 and be spaced that be coated on the first canister portion 211 peripheral
Second canister portion 212；The interior bone of first canister portion 211 forms central through hole.First canister portion 211 and the second canister portion 212 pass through court
Connect to one end of 1 open outer side of handle portion, further, sealing shroud 21 further includes by the first canister portion 211 and the second canister portion 212 1
Hold the interconnecting piece 213 to connect.Interconnecting piece 213 is located at 1 opening of handle portion, generally annular slab structure, and parallel sealing is being open
Place.
Further, the other end of the second canister portion 212 has extended to form positioning region 214 by bending, can in handle portion 1
It is fastened on 1 periphery of electrodynamic element, is located between electrodynamic element 2 and opening so that sealing shroud 21 is sustainable.
In electric toothbrush, the cooperation of brush head 3 has one end of opening in handle portion 1, and drive shaft 10 stretches out opening for handle portion 1
Mouth is a tight fit in brush head 3, and brush head 3 is connect with handle portion 1, and is transferred a driving force to entirely when electrodynamic element 2 works
Brush head 20 realizes the vibration of brush head 30.
Electric toothbrush further includes the battery core 5 being arranged in handle portion 1, and battery core 5 is electrically connected with electrodynamic element 2, is electronic list
Member 2 is powered.In handle portion 1, electrodynamic element 2 is located at side of the electrodynamic element 2 far from brush head 3 close to brush head 3, battery core 5.Driving
Axis 10 can be integrally attached on electrodynamic element 2, and sealing shroud 21 can abut far from one end that handle portion 1 is open and be supported in electrodynamic element
On 2.
The part that drive shaft 10 stretches out handle portion 1 forms output shaft 30；Brush head 3 is equipped with for 30 grafting of output shaft wherein
Duct 40.Specifically, output shaft 30 includes opposite both ends 31,32 and the axis that is connected between both ends 31,32
To section 33.Accordingly, duct 40 is also including opposite end 41,42 and the axial direction part 43 being connected between both ends 41,42.Output shaft
The both ends 31,32 in portion 30 and the both ends 41,42 in duct 40 are interference fitted, the axial direction part 33 of output shaft 30 and the axis in duct 40
To 43 clearance fit of section, the tight fit of output shaft 30 and duct 40 is realized.
During fabrication, it only needs so that the size (diameter etc.) at the both ends 31,32 of output shaft 30 is slightly larger than 40 liang of duct
The internal diameter at end 41,42, the size (diameter etc.) of 30 axial direction part 33 of output shaft are less than the axial direction part 43 in duct 40.
Cooperate to reinforce output shaft 30 and stablizing for duct 40, the non axial flat face in the side of output shaft 30, hole
The shape in road 40 and output shaft 30 are consistent, inner wall also non axial flat face.
Alternatively, the axial direction part 43 in duct 40 can be equipped at least one protrusion 44, the axial direction part 33 of output shaft 30
It is correspondingly provided with groove 34, protrusion 44 is fastened in groove 34, is formed in without limitation 30 relative opening of output shaft under enough external force
The position limiting structure that road 40 moves axially.
Protrusion 44 is preferably arc-shaped protrusions, convenient for forming cooperation with the relative movement of groove 34 or being detached from.
Alternatively, the axial direction part 33 of output shaft 30 can be equipped with first step portion 35, and the axial direction part 43 in duct 40 is corresponding
Equipped with second step portion 45,45 male-female engagement of first step portion 35 and second step portion is also formed in without limiting under enough external force
The position limiting structure of 30 opposite cell 40 of output shaft axial movement.
In the present embodiment, as shown in Fig. 2, groove 34 and first step portion 35 are located at the opposite of 30 axial direction part 33 of output shaft
Two sides.
Output shaft 30 is greater than the straight of the other end 32 far from handle portion 1 close to the diameter of the one end 31 of handle portion 1
Diameter passes in and out duct 40 convenient for output shaft 30.The diameter of 30 axial direction part 33 of output shaft can be connected in the trend being gradually reduced
Between end 31 and end 32.
In the electric toothbrush of the utility model, structure composition, electrodynamic element 2 (including motor etc.) and battery core 5 of brush head 3 etc.
Part can be implemented by using the prior art.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of waterproof sealing structure of electric toothbrush, which is characterized in that the waterproof sealing structure (4) includes connection electric tooth
The electrodynamic element (2) of brush simultaneously stretches out the drive shaft (10) of power toothbrush handle portion (1) opening, is arranged in the handle portion
(1) opening inner side and the waterproof sealing component (20) being a tight fit on the drive shaft (10)；The waterproof sealing component (20)
Including the sealing shroud (21) with central through hole, the drive shaft (10) passes through the central through hole and stretches out the handle portion (1)
Opening is equipped with mutually matched concaveconvex structure between the inner wall of the central through hole and the outer peripheral surface of the drive shaft (10).
2. waterproof sealing structure according to claim 1, which is characterized in that the concaveconvex structure includes at least being arranged together
Annular groove (51) on the drive shaft (10) outer peripheral surface, at least one be correspondingly arranged at it is convex on the central through hole inner wall
Ring (52).
3. waterproof sealing structure according to claim 1, which is characterized in that the concaveconvex structure includes at least one setting
Bulge loop (52) on the drive shaft (10) outer peripheral surface, the annular being at least correspondingly arranged at together on the central through hole inner wall
Slot (51).
4. waterproof sealing structure according to claim 1, which is characterized in that the sealing shroud (21) includes being a tight fit in institute
State that first canister portion (211) of drive shaft (10) periphery, connecting and be spaced with first canister portion (211) is coated on described first
The second canister portion (212) of portion (211) periphery；The interior bone of first canister portion (211) forms the central through hole.
5. waterproof sealing structure according to claim 4, which is characterized in that the sealing shroud (21) further includes interconnecting piece
(213), the interconnecting piece (213) is connected between first canister portion (211) and one end of the second canister portion (212).
6. waterproof sealing structure according to claim 5, which is characterized in that the other end of second canister portion (212) is curved
Folding extends to form the positioning region (214) for being engaged on electrodynamic element (2).
7. a kind of electric toothbrush, which is characterized in that be equipped with the handle portion (1) of opening including one end, be arranged in the handle portion (1)
Brush head (3) and claim 1-6 of the interior electrodynamic element (2), cooperation on one end that the handle portion (1) has opening are appointed
Waterproof sealing structure (4) described in one；
The drive shaft (10) of the waterproof sealing structure (4) connects the electrodynamic element (2) and stretches out opening for the handle portion (1)
Mouthful, it is a tight fit in the brush head (3)；The waterproof sealing component (20) of the waterproof sealing structure (4) is arranged in the handle
Portion's (1) opening inner side is simultaneously a tight fit on the drive shaft (10) periphery.
8. electric toothbrush according to claim 7, which is characterized in that the electric toothbrush further includes being arranged in the handle
Battery core (5) in portion (1), the battery core (5) are electrically connected with the electrodynamic element (2).
9. electric toothbrush according to claim 7, which is characterized in that the drive shaft (10) stretches out the handle portion (1)
Part formed output shaft (30)；The brush head (3), which is equipped with, supplies the output shaft (30) grafting duct therein (40)；
The ends (31,32) of the output shaft (30) and opposite end (the 41,42) interference of the duct (40) are matched
It closes, the axial direction part of the axial direction part (33) and the duct (40) between both ends (31,32) of the output shaft (30)
(43) clearance fit.
10. electric toothbrush according to claim 9, which is characterized in that the axial direction part (43) of the duct (40) is equipped with extremely
A few protrusion (44), the axial direction part (33) of the output shaft (30) are correspondingly provided with groove (34)；The protrusion (44)
It is fastened in the groove (34)；And/or
The axial direction part (33) of the output shaft (30) is equipped with first step portion (35), and the axial direction part (43) of the duct (40) is right
Second step portion (45) should be equipped with；The first step portion (35) and second step portion (45) male-female engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175800.0U CN208677625U (en) | 2018-01-31 | 2018-01-31 | Electric toothbrush and its waterproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175800.0U CN208677625U (en) | 2018-01-31 | 2018-01-31 | Electric toothbrush and its waterproof sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208677625U true CN208677625U (en) | 2019-04-02 |
Family
ID=65875150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820175800.0U Active CN208677625U (en) | 2018-01-31 | 2018-01-31 | Electric toothbrush and its waterproof sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208677625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037820A (en) * | 2019-04-26 | 2019-07-23 | 胡斐凡 | A kind of Handleset and electric toothbrush |
| CN113208761A (en) * | 2021-05-08 | 2021-08-06 | 广东小天才科技有限公司 | Main unit assembly and electric toothbrush |
-
2018
- 2018-01-31 CN CN201820175800.0U patent/CN208677625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037820A (en) * | 2019-04-26 | 2019-07-23 | 胡斐凡 | A kind of Handleset and electric toothbrush |
| CN113208761A (en) * | 2021-05-08 | 2021-08-06 | 广东小天才科技有限公司 | Main unit assembly and electric toothbrush |
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| GR01 | Patent grant |