Damping electric toothbrush with stable structure

Abstract

The invention relates to the field of toothbrushes, in particular to a damping electric toothbrush with a stable structure. The electric toothbrush aims at solving the problem that an existing electric toothbrush is large in vibration. Therefore, the electric toothbrush comprises a toothbrush head and a machine body, and the machine body comprises a shell, a support arranged in the shell, a driving device arranged on the support and a damping assembly. According to the electric toothbrush, the damping assembly is arranged between the support and the shell, vibration and noise transmitted to the shell by the driving device can be effectively reduced, meanwhile, the damping assembly is configured to prevent the support from rotating relative to the shell, and the stability of the electric toothbrush in long-term use is ensured. According to the invention, the technical problems are solved.

Description

Technical Field

[0001] The invention relates to the technical field of toothbrushes, in particular to a shock-absorbing electric toothbrush with a stable structure. Background Art

[0002] As people's living standards improve, more and more people choose to use electric toothbrushes. Electric toothbrushes have excellent cleaning effects and are loved by everyone.

[0003] The existing electric toothbrush includes a body and a toothbrush head. The bracket with a driving device installed in the body is in direct contact with the outer shell of the body, which causes large vibrations transmitted from the driving device to the outer shell. The user feels shaking when holding the electric toothbrush, resulting in a poor user experience of the electric toothbrush. Summary of the invention

[0004] One purpose of the present invention is to solve the problem of large vibration of existing electric toothbrushes.

[0005] In particular, the present invention provides a shock-absorbing electric toothbrush with a stable structure, which comprises a toothbrush head and a body, wherein the body comprises:

[0006] shell;

[0007] A bracket, disposed in the housing;

[0008] A driving device, mounted on the bracket and used to drive the toothbrush head to vibrate;

[0009] The shock absorbing assembly is arranged between the bracket and the housing to reduce the vibration transmitted from the driving device to the housing, and is configured to prevent the bracket from rotating relative to the housing.

[0010] Optionally, the shock absorbing assembly includes a shock absorbing ring arranged at the top of the bracket, a shock absorbing seat arranged at the bottom of the bracket, and a shock absorbing arm arranged at the middle of the top of the bracket;

[0011] The shock absorbing ring, the shock absorbing seat and the shock absorbing arm are in contact with the peripheral wall of the housing.

[0012] Optionally, the shock-absorbing seat includes a seat body, which is sleeved on the bottom of the bracket and circumferentially fixed to the bottom of the bracket, and the outer side surface of the seat body abuts against the inner side surface of the bottom of the shell and is circumferentially fixed to the shell.

[0013] Optionally, one of the outer circumferential surface of the seat body and the inner circumferential surface of the shell is provided with a circle of plum blossom-shaped grooves, and the other is provided with a circle of plum blossom-shaped protrusions, and the plum blossom-shaped protrusions are embedded in the plum blossom-shaped grooves to circumferentially fix the seat body and the shell.

[0014] Optionally, a plurality of inner protrusion structures are provided on the inner side of the seat body;

[0015] A plurality of outer grooves matching the inner protrusions are arranged on the outer surface of the bottom of the bracket, and the inner protrusion structure is embedded in the outer grooves to fix the bracket and the seat body circumferentially.

[0016] Optionally, the shock-absorbing ring abuts against the bracket in the axial direction and the circumferential direction respectively, and the shock-absorbing ring abuts against the outer shell in the axial direction and the circumferential direction respectively.

[0017] Optionally, the shock-absorbing ring is interference-fitted with the bracket and the housing respectively to prevent flash gaps.

[0018] Optionally, a shock absorbing cavity is defined in the shock absorbing arm.

[0019] Optionally, a shock absorbing groove extending in the axial direction is provided in the shell, and the shock absorbing arm is embedded in the shock absorbing groove and abuts against the peripheral surface of the shock absorbing groove.

[0020] Optionally, the ratio of the width of the shock absorbing groove to the width of the hexagram groove is selected from any value between 1 / 5 and 1 / 2;

[0021] The ratio of the width of the shock absorbing groove to the width of the shock absorbing arm is selected from 1.1 to 2.

[0022] The present invention can effectively reduce the vibration and noise transmitted to the shell by the driving device by arranging a shock absorbing component between the bracket and the shell, and at the same time, by configuring the shock absorbing component to prevent the bracket from rotating relative to the shell, the stability of the electric toothbrush during long-term use is ensured.

[0023] Furthermore, by respectively arranging a shock-absorbing ring, a shock-absorbing seat and a shock-absorbing arm at the top, bottom and middle of the bracket, and making at least two of the shock-absorbing ring, the shock-absorbing seat and the shock-absorbing arm abut against the outer shell, the vibration generated at the top, bottom and middle of the bracket can be effectively absorbed and dispersed, thereby effectively reducing the vibration transmitted to the outer shell by the driving device.

[0024] Furthermore, by sleeve-mounting the seat body of the shock-absorbing seat on the bottom of the bracket and circumferentially fixed to the bottom of the bracket, the outer side surface of the seat body abuts against the inner side surface of the bottom of the shell and is circumferentially fixed to the shell.

[0025] Furthermore, by arranging a plurality of inner protrusion structures on the inner side of the seat body, arranging a plurality of outer grooves matching the inner protrusions on the outer surface of the bottom of the bracket, and embedding the inner protrusion structures into the outer grooves, the shock absorbing seat and the bottom of the bracket are circumferentially fixed.

[0026] Furthermore, one of the outer circumferential surface of the seat body and the inner circumferential surface of the shell is provided with a circle of plum blossom-shaped grooves, and the other is provided with a circle of plum blossom-shaped protrusions, and the plum blossom-shaped protrusions are embedded in the plum blossom-shaped grooves, thereby achieving circumferential fixation of the seat body and the shell and improving the tightness of the fit between the seat body and the shell.

[0027] Furthermore, by making the ratio of the width of the shock absorbing groove to the width of the plum blossom groove selected from any value between 1 / 5 and 1 / 2; by making the ratio of the width of the shock absorbing groove to the width of the shock absorbing arm selected from between 1.1 and 2, when the shock absorbing arm is inserted into the shock absorbing groove, it is ensured that the plum blossom protrusion is embedded in the plum blossom groove to prevent interference and failure to install in place.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is an overall structural diagram of a shock-absorbing electric toothbrush with a stable structure provided according to an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 Schematic diagram of the exploded view of the body and brush head of the electric toothbrush;

[0033] Figure 3 yes Figure 2 Sectional view of the middle fuselage along section AA;

[0034] Figure 4 yes Figure 2 Exploded view of the mid-fuselage;

[0035] Figure 5 yes Figure 1 and Figure 2 The first schematic diagram of the middle fuselage after removing the outer shell;

[0036] Figure 6 yes Figure 1 and Figure 2Second schematic diagram of the middle fuselage after removing the outer shell

[0037] Figure 7 yes Figures 4 to 6 A first schematic diagram of the middle main support;

[0038] Figure 8 yes Figures 4 to 6 A second schematic diagram of the middle main support;

[0039] Fig. 9 yes Figures 4 to 6 A first schematic diagram of the middle sub-bracket;

[0040] Fig.10 yes Figures 4 to 6 Second schematic diagram of the middle sub-bracket

[0041] Fig.11 yes Figure 4 A first schematic diagram of a receiving member;

[0042] Fig.12 yes Figure 4 a second schematic diagram of the receiving member;

[0043] Fig.13 yes Figure 4 A schematic diagram of the assembly of the middle receiving part and the main bracket;

[0044] Fig.14 yes Figures 3 to 6 Schematic diagram of the middle shock absorbing ring;

[0045] Fig.15 yes Fig.14 Cross-sectional view of the middle shock-absorbing ring along the BB section;

[0046] Fig.16 Figures 3 to 6 The first schematic diagram of the middle shock mount;

[0047] Fig.17 yes Figures 3 to 6 A second schematic diagram of the middle shock mount;

[0048] Fig.18 yes Figure 4 a first schematic diagram of the middle housing;

[0049] Fig.19 yes Figure 4 a second schematic diagram of the middle housing;

[0050] Fig. 20 yes Fig.19 A cross-sectional view of the middle shell along the CC section;

[0051] Fig.21 yes Figures 1 to 4 A first schematic diagram of the middle top cover;

[0052] Fig. 22 yes Figures 1 to 4 A second schematic diagram of the middle top cover;

[0053] Fig.23 yes Figures 1 to 4 A third schematic diagram of the mid-top cover.

[0054] Description of reference numerals:

[0055] 10. Electric toothbrush;

[0056] 100, body; 200, toothbrush head;

[0057] 110, housing; 111, top opening; 112, housing; 113, plum blossom-shaped protrusion; 114, shock-absorbing groove; 1121, buckle; 1122, anti-rotation protrusion; 115, top cover; 1151, light-transmitting area; 1152, plug-in portion; 11521, slot; 11522, anti-rotation groove; 11523, annular groove; 11524, sealing ring;

[0058] 120, bracket; 121, first receiving cavity; 122, second receiving cavity; 123, hollow tube section; 124, main bracket; 1241, first main connecting part; 1242, second main connecting part; 1243, limiting groove; 1244, fixing protrusion; 125, auxiliary bracket; 1251, first auxiliary connecting part; 1252, second auxiliary connecting part; 1253, counterweight cavity; 126, shock absorbing arm; 1261, shock absorbing cavity; 127, outer groove;

[0059] 130, receiving piece; 131, third receiving chamber; 1311, outer receiving portion; 13111, avoidance opening;

[0060] 1312, internal storage;

[0061] 140, driving device; 150, battery; 160, PCB board;

[0062] 170, shock-absorbing ring; 171, first ring piece; 172, first pipe section; 173, second ring piece; 1731, sealing ring; 174, second pipe section; 175, inner ring pipe;

[0063] 180, shock-absorbing seat; 181, seat body; 1811, plum blossom-shaped groove; 1812, inner protrusion structure; 1813, avoidance gap; 1814, through hole; 1815, seat cavity;

[0064] 190, light emitting element; 1100, light guiding member; 1200, display device; 1300, button; 1400, shock absorbing assembly. DETAILED DESCRIPTION

[0065] It should be noted that in the description of the present invention, the orientations or positional relationships indicated by “top”, “bottom”, “inside”, “outside”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0067] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0068] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the embodiments of the present invention have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0069] Refer to the following Figures 1 to 23 Taking an embodiment as an example, the shock-absorbing electric toothbrush 10 with a stable structure in the present invention is described in detail.

[0070] Reference Figure 1 , 2 As shown, in the embodiment shown, the bottom of the electric toothbrush 10 can be inserted into the charging stand 20 to charge the electric toothbrush 10 through the charging stand 20. The electric toothbrush 10 includes a body 100 and a toothbrush head 200 mounted on a driving shaft of the body 100.

[0071] Reference Figure 3 , 4As shown, in the embodiment shown therein, the body 100 includes a shell 110, a bracket 120 arranged in the shell 110, a receiving member 130 installed on the bracket 120, a driving device 140, a battery 150, a PCB board 160, a shock absorbing assembly 1400, a light emitting element 190, a light guide component 1100, a display device 1200 arranged on the shell 110, and a button 1300.

[0072] The housing 110 has a top opening 111 , and a driving shaft of the driving device 140 passes through the top opening 111 and is drivingly connected to the toothbrush head 200 .

[0073] Among them, an overvoltage detection device (not shown in the figure) is provided on the PCB board 160, and the overvoltage detection device is configured to obtain the deformation signal of the output shaft of the driving device 140 and reduce the operating frequency of the driving device 140 when the deformation signal exceeds the set deformation value, thereby protecting the user from damaging the gums due to excessive brushing pressure. It should be noted that since the overvoltage detection device is a conventional component in the electric toothbrush 10 and is well known to those skilled in the art, it will not be described here in detail.

[0074] Reference Figure 3-6 As shown, in the embodiment shown, the bracket 120 is defined by a first receiving cavity 121 and a second receiving cavity 122 located at the bottom side of the first receiving cavity 121, the receiving member 130 is arranged in the first receiving cavity 121 and has a third receiving cavity 131, the driving device 140 is arranged in the first receiving cavity 121 and the bottom is located in the third receiving cavity 131, and the battery 150 is arranged in the second receiving cavity 122.

[0075] Those skilled in the art will appreciate that by disposing the bracket 120 in the housing 110 and defining a first receiving cavity 121 and a second receiving cavity 122 located at the bottom side of the first receiving cavity 121, and arranging a receiving member 130 having a third receiving cavity 131 in the first receiving cavity 121, and positioning the bottom of the driving device 140 in the third receiving cavity 131, the receiving member 130 can absorb the vibration directly generated by the driving device 140 and the vibration of the bracket 120, thereby reducing the vibration and noise during the operation of the electric toothbrush 10 and improving the user experience of the electric toothbrush 10.

[0076] Continue to refer to Figure 3-6 As shown, by arranging the PCB board 160 on the side of the main bracket 124 away from the auxiliary bracket 125, the bracket 120 is made compact, and the fuselage 100 is made compact, thereby reducing the volume of the fuselage 100. Of course, those skilled in the art can also arrange the PCB board 160 on the side of the main bracket 124 close to the auxiliary bracket 125 as needed.

[0077] Continue to refer to Figure 3-6As shown, in the embodiment shown, the body 100 also includes a display device 1200 installed on the outer shell 110, and the display device 1200 is located on the side of the PCB board 160 away from the main bracket 124. The body 100 also includes a button 1300 installed on the outer shell 110 and located on the bottom side of the display device 1200.

[0078] The display device 1200 is electrically connected to the PCB board 160 .

[0079] In addition, a pressure detection device (not marked in the figure) corresponding to the button 1300 is provided on the PCB board 160, and a pressure-deformable silicone (not marked in the figure) is provided between the pressure detection device and the button 1300. By pressing the button 1300, the pressure-deformable silicone triggers the pressure detection device to generate a control instruction for the electric toothbrush 10.

[0080] Reference Figure 7-10 As shown, in the embodiment shown, the bracket 120 includes a main bracket 124 and a sub-bracket 125 , and the first receiving cavity 121 is defined by the main bracket 124 and the sub-bracket 125 .

[0081] That is to say, the main bracket 124 defines a part of the first receiving cavity 121 , and the auxiliary bracket 125 defines another part of the first receiving cavity 121 , and the two are assembled to form a complete first receiving cavity 121 .

[0082] Those skilled in the art will appreciate that by configuring the bracket 120 to include a main bracket 124 and a sub-bracket 125 , and defining the first receiving cavity 121 by the main bracket 124 and the sub-bracket 125 , installation of the receiving member 130 is facilitated.

[0083] Reference Figure 7-10 As shown, in the embodiment shown, the main bracket 124 is provided with a first main connection portion 1241 at the bottom side of the first receiving cavity 121, and the main bracket 124 is provided with a second main connection portion 1242 at the top side of the first receiving cavity 121. The auxiliary bracket 125 is provided with a first auxiliary connection portion 1251 opposite to the first main connection portion 1241 at the bottom side of the first receiving cavity 121, and the auxiliary bracket 125 is provided with a second auxiliary connection portion 1252 opposite to the second main connection portion 1242 at the top side of the first receiving cavity 121, wherein the main bracket 124 and the auxiliary bracket 125 are connected through the first main connection portion 1241 and the first auxiliary connection portion 1251, and the second main connection portion 1242 and the second auxiliary connection portion 1252 are connected to define the first receiving cavity 121.

[0084] Continue to participate Figure 7-10As shown, the first main connection part 1241 may be provided with two first main threaded holes (not marked in the figure), and the two first main threaded holes are located at the two ends of the top side of the first receiving cavity 121. The second main connection part 1242 is provided with a second main threaded hole (not marked in the figure), and the second main threaded hole is located at the bottom center of the first receiving cavity 121. The first secondary connection part 1251 is provided with two first secondary threaded holes (not marked in the figure), and the two first secondary threaded holes are located at the two ends of the top side of the first receiving cavity 121. The second secondary connection part 1252 is provided with a second secondary threaded hole (not marked in the figure), and the second secondary threaded hole is located at the bottom center of the first receiving cavity 121. Among them, the two first main threaded holes and the two first secondary threaded holes correspond one to one, and the second main threaded hole corresponds to the second secondary threaded hole. The main bracket 124 and the secondary bracket 125 are fixedly connected by a plurality of screws passing through the first main threaded hole, the first secondary threaded hole, the second main threaded hole, and the second secondary threaded hole corresponding to the position.

[0085] Reference Figure 7 , 9 As shown, in the embodiment shown, at least one of the main bracket 124 and the auxiliary bracket 125 is provided with a limiting groove 1243, and at least a portion of the receiving piece 130 is embedded in the limiting groove 1243 to prevent the receiving piece 130 from moving relative to the main bracket 124.

[0086] Continue to refer to Figure 7 , 9 As shown, in the embodiment shown, the main bracket 124 can be provided with a limiting groove 1243, and the auxiliary bracket 125 can be provided with two limiting grooves 1243. After the main bracket 124 and the auxiliary bracket 125 are assembled together, the three limiting grooves 1243 are spaced apart in the axial direction.

[0087] Those skilled in the art can understand that by providing at least one of the main bracket 124 and the auxiliary bracket 125 with a limiting groove 1243 and embedding at least a portion of the receiving piece 130 into the limiting groove 1243, the receiving piece 130 is effectively prevented from moving relative to the main bracket 124.

[0088] Reference Fig.10 As shown, in the embodiment shown, a counterweight cavity 1253 is provided on the outer side of the auxiliary bracket 125, and the counterweight cavity 1253 is used to install a counterweight block.

[0089] from Fig.10 As can be seen in the figure, the counterweight cavity 1253 is a rectangular structure. Of course, those skilled in the art can also set the counterweight cavity 1253 to other shapes, such as circular, elliptical, bar, etc., as needed.

[0090] It will be understood by those skilled in the art that by providing a counterweight cavity 1253 on the outside of the sub-bracket 125, the electric toothbrush 10 can be provided with a counterweight block in the counterweight cavity 1253 as needed to increase the weight of the body 100, thereby improving the texture and feel of the electric toothbrush 10 and making the swing of the toothbrush head 200 more stable during operation.

[0091] Reference Fig.11 , 12 As shown, in the embodiment shown, the third receiving cavity 131 of the receiving member 130 includes an outer receiving portion 1311 and an inner receiving portion 1312 , the cross-section of the outer receiving portion 1311 is larger than the cross-section of the inner receiving portion 1312 , and a portion of the bottom of the driving device 140 is embedded in the inner receiving portion 1312 .

[0092] A person skilled in the art can understand that by making the cross-section of the outer receiving portion 1311 larger than the cross-section of the inner receiving portion 1312, the inner receiving portion 1312 is adapted to the shape of a portion of the bottom of the driving device 140, and then a portion of the bottom of the driving device 140 is embedded in the inner receiving portion 1312, so that the bottom of the driving device 140 can be fixedly disposed in the third receiving cavity 131.

[0093] Reference Figure 11-13 As shown, in the embodiment shown, the side wall of the outer receiving portion 1311 is provided with an avoidance opening 13111, and the avoidance opening 13111 can be a rectangular avoidance opening 13111. The main bracket 124 is provided with a fixing protrusion 1244 matching the avoidance opening 13111, and the fixing protrusion 1244 is embedded in the avoidance opening 13111 to prevent the receiving piece 130 from moving relative to the main bracket 124.

[0094] Those skilled in the art will appreciate that by cooperating the avoidance opening 13111 with the fixing protrusion 1244 , a more stable connection relationship can be formed between the main bracket 124 and the housing 110 , so that the receiving member 130 can be firmly fixed on the main bracket 124 .

[0095] Reference Figure 3-6 As shown, in the embodiment shown, the shock absorbing assembly 1400 is disposed between the bracket 120 and the housing 110 to reduce the vibration transmitted from the driving device 140 to the housing 110 and reduce noise. The shock absorbing assembly 1400 is also configured to prevent the bracket 120 from rotating relative to the housing 110 to ensure the stability of the electric toothbrush 10 during long-term use.

[0096] Continue to refer to Figure 3-6 As shown, in the embodiment shown, the shock absorbing assembly 1400 includes a shock absorbing ring 170 arranged on the top of the bracket 120 and a shock absorbing seat 180 arranged on the bottom of the bracket 120, and the shock absorbing ring 170 and the shock absorbing seat 180 are respectively abutted against the housing 110.

[0097] Continue to refer to Figure 3-6 As shown, in the embodiment shown, the shock absorbing ring 170 is embedded in the top opening 111 of the housing 110 and penetrated by the driving shaft, and the shock absorbing ring 170 is respectively in contact with the housing 110 and the bracket 120 .

[0098] Those skilled in the art will appreciate that by disposing the shock absorbing ring 170 on the top of the bracket 120 and abutting against the housing 110 and the bracket 120, the impact force generated on the top of the driving device 140 can be absorbed and dispersed by the shock absorbing ring 170, thereby effectively reducing the vibration and noise transmitted to the housing 110 by the driving device 140.

[0099] Reference Figure 3-6 As shown in Figures 14 and 15, in the embodiment shown therein, the shock-absorbing ring 170 includes a first ring piece 171, a first tube segment 172 arranged on the bottom side of the first ring piece 171, a second ring piece 173 arranged on the outside of the bottom of the first tube segment 172, and a second tube segment 174 arranged on the bottom side of the second ring piece 173, wherein the first tube segment 172 abuts against the peripheral wall of the top opening 111 of the outer shell 110, and the second ring piece 173 and the second tube segment 174 are located inside the outer shell 110 and at least one of them abuts against the bracket 120.

[0100] Those skilled in the art will appreciate that by making the first tube segment 172 of the shock absorbing ring 170 abut against the peripheral wall of the top opening 111 of the outer shell 110, the shock absorbing ring 170 is abutted against the outer shell 110 in the circumferential direction, and by making at least one of the second ring piece 173 and the second tube segment 174 of the shock absorbing ring 170 abut against the bracket 120, the shock absorbing ring 170 is abutted against the bracket 120 in at least one of the circumferential and axial directions, so that the impact force generated in at least one of the circumferential and axial directions at the top of the driving device 140 can be absorbed and dispersed by the shock absorbing ring 170, so that the vibration and noise transmitted to the outer shell 110 by the driving device 140 can be effectively reduced.

[0101] Continue to refer to Figure 3-6 As shown in , 14 and 15 , in the embodiments shown therein, the second pipe section 174 is sleeved on the outer side of the top of the bracket 120 ; and / or, the second ring piece 173 abuts against the top end of the bracket 120 .

[0102] A person skilled in the art can understand that by sleeve-fitting the second pipe section 174 onto the outer side of the top of the bracket 120, the shock-absorbing ring 170 is in contact with the bracket 120 in the circumferential direction, and by abutting the second ring piece 173 against the top of the bracket 120, the shock-absorbing ring 170 is in contact with the bracket 120 in the axial direction.

[0103] Reference Fig.14 , 15As shown, in the embodiment shown, a sealing ring 1731 is provided on a side of the second ring piece 173 away from the second pipe section 174 , so that the second ring piece 173 abuts against the inner surface of the housing 110 through the sealing ring 1731 .

[0104] Those skilled in the art will appreciate that by making the shock absorbing ring 170 abut against the bracket 120 in the axial direction and the circumferential direction respectively, and making the shock absorbing ring 170 abut against the housing 110 in the axial direction and the circumferential direction respectively, the impact force in various directions generated at the top of the driving device 140 can be effectively absorbed and dispersed by the shock absorbing ring 170, thereby effectively reducing the vibration and noise transmitted to the housing 110 by the driving device 140.

[0105] Reference Figure 3-6 As shown in FIGS. 14 and 15 , in the embodiments shown therein, the shock absorbing ring 170 further includes an inner ring tube 175 extending from the first ring piece 171 to the second tube section 174, and the inner ring tube 175 is sleeved with the driving shaft.

[0106] It is understood by those skilled in the art that by sleeve-engaging the inner ring tube 175 with the drive shaft, the vibration transmitted by the drive shaft to the housing 110 is reduced, thereby reducing noise.

[0107] Continue to refer to Figure 3-6 , 14 and 15, in the embodiments shown therein, a hollow tube section 123 is provided at the top of the bracket 120, an inner ring tube 175 is inserted into the hollow tube section 123, and the inner ring tube 175, the hollow tube section 123 and the first tube section 172 are spaced apart from each other.

[0108] Those skilled in the art will appreciate that by spacing the inner ring tube 175, the hollow tube section 123, and the first tube section 172 apart from each other, the transmission of vibrations between the various parts is effectively reduced, thereby improving the absorption and dispersion of the impact force generated by the shock-absorbing ring 170 on the drive shaft.

[0109] Reference Fig.15 As shown, in the embodiment shown, the bottom end of the inner ring tube 175 extends to the bottom side of the second tube section 174 .

[0110] Those skilled in the art will appreciate that by extending the bottom end of the inner ring tube 175 to the bottom side of the second tube section 174 , the coverage area of ​​the inner ring tube 175 for the drive shaft is increased, thereby further reducing the vibration and noise transmitted to the housing 110 by the drive shaft.

[0111] Reference Fig.15 As shown, in the embodiment shown, the cross section of the outer peripheral surface at the bottom of the inner ring tube 175 gradually increases toward the direction approaching the first ring piece 171 .

[0112] Those skilled in the art will appreciate that by gradually increasing the cross-section of the outer peripheral surface at the bottom of the inner ring tube 175 toward the first ring plate 171 , the fit of the inner ring tube 175 to the drive shaft can be ensured to facilitate installation between the shock-absorbing ring 170 and the drive shaft.

[0113] Furthermore, the shock absorbing ring 170 is interference-fitted with the bracket 120 and the housing 110 respectively to prevent flashing.

[0114] Those skilled in the art will appreciate that by making the shock absorbing ring 170 interference fit with the bracket 120 and the housing 110 respectively, the airtightness between the shock absorbing ring 170 and the bracket 120 and the housing 110 can be ensured, thereby ensuring the shock absorbing effect of the shock absorbing ring 170 .

[0115] Reference Figure 3-6 As shown, in the illustrated embodiment, the shock absorbing seat 180 is disposed at the bottom of the bracket 120 and abuts against the housing 110 .

[0116] Furthermore, the shock absorbing seat 180 is configured to be bowl-shaped and is sleeved on the bottom of the bracket 120 , that is, the bottom end of the bracket 120 is embedded in the shock absorbing seat 180 , and the outer side surface of the shock absorbing seat 180 abuts against the inner side surface of the housing 110 .

[0117] Reference Fig.16 , 17 As shown, in the illustrated embodiment, the shock absorbing seat 180 includes a seat body 181 , and the seat body 181 defines a seat cavity 1815 for accommodating the bottom of the bracket 120 .

[0118] Those skilled in the art will appreciate that by making the shock absorbing seat 180 abut against the bracket 120 in the axial direction and the circumferential direction respectively, and making the shock absorbing seat 180 abut against the outer shell 110 in the axial direction and the circumferential direction respectively, the shock absorbing seat 180 can effectively absorb and disperse the impact forces in various directions generated at the bottom of the driving device 140, thereby reducing the vibration transmitted to the outer shell 110 by the driving device 140 and reducing the noise.

[0119] Reference Figure 4-6 As shown in FIGS. 16 and 17 , in the embodiments shown therein, an avoidance notch 1813 is provided on the peripheral wall of the seat body 181 to facilitate the assembly of the electric toothbrush 10.

[0120] Continue to refer to Figure 4-6 As shown in FIGS. 16 and 17 , the avoidance gap 1813 is rectangular. Those skilled in the art may also set the avoidance gap 1813 to other shapes, such as circular, elliptical, etc., as needed.

[0121] Reference Figure 3-6As shown in FIGS. 16 and 17 , in the embodiments shown therein, the seat body 181 is circumferentially fixed to the bottom of the bracket 120 and the bottom inner side surface of the housing 110 respectively.

[0122] Reference Figure 7 , 8 As shown in Figures 16 and 17, a plurality of inner protrusion structures 1812 are provided on the inner side of the seat body 181, and a plurality of outer grooves 127 matching the inner protrusions are provided on the outer surface of the bottom of the bracket 120, and the inner protrusion structures 1812 are embedded in the outer grooves 127 to circumferentially fix the bracket 120 and the seat body 181.

[0123] Optionally, the inner protrusion structure 1812 extends along the axial direction of the seat body 181 , and the outer groove 127 extends along the axial direction of the bracket 120 .

[0124] Optionally, the number of the plurality of inner protrusion structures 1812 is four, and the number of the plurality of outer grooves 127 is four.

[0125] Reference Figure 16-20 As shown, one of the outer circumference of the seat body 181 and the inner circumference of the shell 110 is provided with a circle of plum blossom-shaped grooves 1811, and the other is provided with a circle of plum blossom-shaped protrusions 113, and the plum blossom-shaped protrusions 113 are embedded in the plum blossom-shaped grooves 1811 to fix the seat body 181 and the shell 110 circumferentially.

[0126] Those skilled in the art will appreciate that by fixing the seat 181 circumferentially to the bottom of the bracket 120 and the bottom inner side of the housing 110 respectively, the bracket 120 can be prevented from rotating relative to the housing 110, thereby ensuring the stability of the electric toothbrush 10 during long-term use.

[0127] Reference Fig.16 , 17 As shown, in the embodiment shown, the bottom wall of the seat body 181 is provided with a through hole 1814 to balance the air pressure inside and outside the seat body 181 , so as to facilitate the installation of the shock absorbing seat 180 at the bottom of the bracket 120 .

[0128] Continue to refer to Fig.16 , 17 As shown, in the embodiment shown, the through hole 1814 is a circular hole; and / or, the diameter of the through hole 1814 ranges from 0.5 mm to 5 mm, for example, 0.5 mm, 0.8 mm, 1 mm, 2 mm, 3 mm, 4.5 mm, 5 mm, etc.

[0129] Those skilled in the art should understand that, in addition to a circular hole, the through hole 1814 can also be an elliptical hole, and the diameter of the through hole 1814 ranges from 0.5 mm to 5 mm, which can ensure that the through hole 1814 plays the maximum role.

[0130] Reference Figure 5-8 As shown, in the embodiment shown, the shock absorbing assembly 1400 also includes a shock absorbing arm 126, which is arranged in the top middle part of the bracket 120. Specifically, the shock absorbing arms 126 are respectively arranged on both sides of the bracket 120, and the shock absorbing arms 126 abut against the peripheral wall of the shell 110.

[0131] Reference Figure 5-8 As shown in FIGS. 18-19 , in the embodiment shown therein, a shock absorbing groove 114 extending in the axial direction is provided in the housing 110 , and the shock absorbing arm 126 is embedded in the shock absorbing groove 114 and abuts against the peripheral surface of the shock absorbing groove 114 .

[0132] Those skilled in the art will appreciate that by providing shock absorbing arms 126 on both sides of the bracket 120 and making the shock absorbing arms 126 abut against the housing 110, the impact force generated by the middle section of the driving device 140 can be effectively absorbed and dispersed, thereby reducing the vibration and noise transmitted to the housing 110 by the driving device 140.

[0133] Although not shown in the figure, the ratio of the width of the shock absorbing groove 114 to the width of the hexagram groove is selected from any value between 1 / 5 and 1 / 2, such as 1 / 5, 1 / 3, 1 / 4, 1 / 2, etc.; the ratio of the width of the shock absorbing groove 114 to the width of the shock absorbing arm 126 is selected from between 1.1 and 2, such as 1.1, 1.3, 1.5, 1.8, 2, etc.

[0134] Those skilled in the art can understand that by selecting the ratio of the width of the shock absorbing groove 114 to the width of the plum blossom groove from any value between 1 / 5 and 1 / 2, and selecting the ratio of the width of the shock absorbing groove 114 to the width of the shock absorbing arm 126 from 1.1 to 2, when the shock absorbing arm 126 is inserted into the shock absorbing groove 114, it can be ensured that the plum blossom protrusion is embedded in the plum blossom groove to prevent interference and failure to install in place.

[0135] Those skilled in the art will appreciate that by combining the shock absorbing ring 170, the shock absorbing seat 180 and the shock absorbing arm 126, the impact force generated by the driving device 140 as a whole can be effectively absorbed and dispersed, thereby reducing the vibration transmitted from the driving device 140 as a whole to the housing 110.

[0136] Reference Figure 7 , 8 As shown, in the illustrated embodiment, a shock absorbing cavity 1261 is defined in the shock absorbing arm 126 .

[0137] Specifically, the shock absorbing arm 126 defines two shock absorbing cavities 1261 along the longitudinal direction.

[0138] It is understood by those skilled in the art that the shock absorbing cavity 1261 can effectively absorb and disperse the impact force from the middle section of the driving device 140 , thereby reducing the vibration and noise transmitted from the driving device 140 to the housing 110 .

[0139] In one embodiment of the present invention, the shock absorbing ring 170 and the shock absorbing seat 180 are both components made of elastic material, and the elastic material can be rubber.

[0140] Those skilled in the art will appreciate that by making the shock absorbing ring 170 and the shock absorbing seat 180 from elastic material, it can be ensured that the impact force generated by the driving device 140 can be further quickly dispersed and absorbed by the shock absorbing ring 170 and the shock absorbing seat, thereby further quickly reducing the vibration transmitted to the housing 110 by the driving device 140.

[0141] Reference Figure 3-6 , 18-23, in the embodiment shown therein, the housing 110 includes a shell 112 and a top cover 115 installed on the top side of the shell 112, the top cover 115 is provided with a light-transmitting area 1151 arranged along its circumference, and the light-emitting element 190 is disposed in the housing 110 and is configured so that the light it emits is transmitted through the light-transmitting area 1151.

[0142] The light emitting element 190 may be ring-shaped, and the light emitting element 190 is sleeved on the outside of the hollow tube section 123 of the bracket 120 .

[0143] Reference Figure 3 , 4 As shown, in the embodiment shown, by arranging the light-transmitting area 1151 along the circumference of the top cover 115, the light-emitting unit is arranged in the housing 110 so that the light emitted by it is transmitted from the light-transmitting area 1151, so that the working state of the electric toothbrush 10 can be visualized and the light-emitting element 190 is protected by the housing 110 and is not easily damaged. At the same time, since the volume of the top cover 115 is small and the cost is low, by arranging the light-transmitting area 1151 on the top cover 115, not only the processing of the top cover 115 is facilitated, but also the cost loss caused by the defective rate is reduced.

[0144] Reference Figure 3 , 4 As shown in FIGS. 21-23 , in the embodiment shown therein, the light-transmitting area 1151 is located on the circumferential surface of the top cover 115 so that the light emitted by the light-emitting element 190 is transmitted outward along the circumferential direction of the top cover 115 .

[0145] Reference Figure 3-6 As shown, in the embodiment shown therein, the light guide member 1100 is disposed between the light-transmitting area 1151 and the light-emitting unit, and the light-emitting unit is mounted on the bracket 120 .

[0146] It will be understood by those skilled in the art that, by mounting the light emitting unit on the bracket 120, the light of the light emitting element 190 is directed toward the top side to the light guide member 1100, and by arranging the light guide member 1100 between the light transmissive area 1151 and the light emitting unit, the light guide member 1100 can guide the light emitted by the light emitting unit to the light transmissive area 1151, thereby increasing the light transmittance of the light transmissive area 1151.

[0147] Reference Figure 21-23 As shown, the light-transmitting area 1151 is set to be ring-shaped, so that the light-emitting element 190 can transmit light in all directions, thereby improving the visualization effect of the working state of the electric toothbrush 10.

[0148] Reference Figure 21-23 As shown, in the embodiment shown, the top cover 115 further includes an inserting portion 1152 located at the bottom side of the light-transmitting area 1151 , and the top cover 115 is inserted into the housing 112 via the inserting portion 1152 .

[0149] Reference Fig.18 , 19 As shown in FIGS. 21-23 , in the embodiment shown therein, the plug-in portion 1152 is provided with a snap-fit ​​structure 11521 ; and a snap-fitting structure 1121 is provided on the shell 112 , and the snap-fitting structure 1121 is snap-fitted with the snap-fitting structure 11521 to fix the top cover 115 to the shell 112 .

[0150] Reference Fig.18 , 19 As shown in Figures 21-23, in the embodiment shown therein, the snap-fit ​​structure 11521 can be set as a snap slot; the snap-fitting structure 1121 can be set as a snap buckle.

[0151] Those skilled in the art can understand that by designing the top cover 115 to be plugged together with the housing 112 through the plug-in portion 1152, the connection method is simple and easy to assemble and disassemble. In addition, by designing the snap-fit ​​structure 11521 as a slot and setting the snap-fit ​​structure 1121 as a buckle, the overall structure of the snap-fit ​​structure 11521 and the snap-fit ​​structure 1121 is simple and low in cost.

[0152] Reference Fig.18 , 19 As shown, in the embodiment shown, two buckles are provided in the housing 112 at positions corresponding to each slot, so that the plug-in portion and the housing 112 are connected by snapping the buckles into the slots.

[0153] Reference Figure 21-23As shown, in the embodiment shown, a stop groove 11522 is further provided on the plug-in portion 1152 , and a stop protrusion 1122 is provided in the shell 112 , and the stop protrusion 1122 is embedded in the stop groove 11522 to prevent the top cover 115 from rotating relative to the shell 112 .

[0154] Continue to refer to Figure 21-23 As shown, in the embodiment shown, two opposite anti-rotation grooves 11522 are provided on the plug-in portion 1152, wherein the width of one anti-rotation groove 11522 is greater than the width of the other anti-rotation groove 11522; two anti-rotation protrusions 1122 parallel in the circumferential direction corresponding to the wide anti-rotation groove 11522 are provided in the shell 112, and a anti-rotation protrusion 1122 corresponding to the narrow anti-rotation groove 11522 is also provided in the shell 112.

[0155] It is understandable to those skilled in the art that, since the anti-rotation structure provided on the plug-in portion 1152 is relatively simple, the anti-rotation cost and reliability between the top cover 115 and the shell 112 are effectively reduced.

[0156] Reference Figure 21-23 As shown, in the embodiment shown, an annular groove 11523 is also provided on the plug-in portion 1152 , and the annular groove 11523 is used to prevent the placement of a sealing ring 11524 so that the top cover 115 is sealed with the shell 112 through the sealing ring 11524 .

[0157] In the description of the present embodiment, the description with reference to the term "an embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0158] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A shock-absorbing electric toothbrush with a stable structure, characterized in that: It comprises a toothbrush head and a body, wherein the body comprises: shell; A bracket, disposed in the housing; A driving device, mounted on the bracket and used to drive the toothbrush head to vibrate; The shock absorbing assembly is arranged between the bracket and the housing to reduce the vibration transmitted from the driving device to the housing, and is configured to prevent the bracket from rotating relative to the housing.

2. The electric toothbrush according to claim 1, characterized in that: The shock absorbing assembly comprises a shock absorbing ring arranged at the top of the bracket, a shock absorbing seat arranged at the bottom of the bracket, and a shock absorbing arm arranged at the middle of the top of the bracket; The shock absorbing ring, the shock absorbing seat and the shock absorbing arm are in contact with the peripheral wall of the housing.

3. The electric toothbrush according to claim 2, characterized in that: The shock-absorbing seat includes a seat body, which is sleeved on the bottom of the bracket and circumferentially fixed to the bottom of the bracket, and the outer side surface of the seat body abuts against the inner side surface of the bottom of the shell and is circumferentially fixed to the shell.

4. The electric toothbrush according to claim 3, characterized in that: One of the outer circumferential surface of the seat body and the inner circumferential surface of the shell is provided with a circle of plum blossom-shaped grooves, and the other is provided with a circle of plum blossom-shaped protrusions, and the plum blossom-shaped protrusions are embedded in the plum blossom-shaped grooves to fix the seat body and the shell circumferentially.

5. The electric toothbrush according to claim 3, characterized in that: A plurality of inner protrusion structures are arranged on the inner side of the seat body; A plurality of outer grooves matching the inner protrusions are arranged on the outer surface of the bottom of the bracket, and the inner protrusion structure is embedded in the outer grooves to fix the bracket and the seat body circumferentially.

6. The electric toothbrush according to claim 2, characterized in that: The damping ring abuts against the bracket in the axial direction and the circumferential direction respectively, and the damping ring abuts against the housing in the axial direction and the circumferential direction respectively.

7. The electric toothbrush according to claim 6, characterized in that: The shock-absorbing ring is interference-fitted with the bracket and the shell respectively to prevent flash cracks.

8. The electric toothbrush according to claim 4, characterized in that A shock absorbing cavity is defined in the shock absorbing arm.

9. The electric toothbrush according to claim 8, characterized in that: The housing is provided with a shock absorbing groove extending in the axial direction, and the shock absorbing arm is embedded in the shock absorbing groove and abuts against the peripheral surface of the shock absorbing groove.

10. The electric toothbrush according to claim 9, characterized in that: The ratio of the width of the damping groove to the width of the hexagram groove is selected from any value between 1 / 5 and 1 / 2; The ratio of the width of the shock absorbing groove to the width of the shock absorbing arm is selected from 1.1 to 2.

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