Electric toothbrush with multiple damping functions

Abstract

The utility model relates to the field of toothbrushes, in particular to an electric toothbrush with multiple damping functions. 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. By arranging the damping assembly between the support and the shell, vibration and noise transmitted to the shell by the driving device can be effectively reduced, and the use experience of a user on the electric toothbrush is improved. According to the utility model, the technical problems are solved.

Description

Technical Field

[0001] This utility model relates to the field of toothbrushes, and in particular to an electric toothbrush with multiple shock absorption functions. Background Technology

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

[0003] Existing electric toothbrushes consist of a body and a brush head. The bracket inside the body, which houses the drive unit, is in direct contact with the outer shell of the body. This results in significant vibration transmitted from the drive unit to the outer shell, causing the toothbrush to vibrate in the hand and leading to a poor user experience. Utility Model Content

[0004] One objective of this invention is to solve the problem of excessive vibration in existing electric toothbrushes.

[0005] Specifically, this utility model provides an electric toothbrush with multiple shock absorption functions, comprising a toothbrush head and a body, wherein the body includes:

[0006] shell;

[0007] The bracket is disposed within the housing;

[0008] A drive unit, mounted on the bracket, is used to drive the toothbrush head to vibrate;

[0009] A shock-absorbing assembly is disposed between the bracket and the housing to reduce the vibration transmitted from the drive device to the housing.

[0010] Optionally, the shock absorption assembly includes a shock absorption ring disposed at the top of the bracket and a shock absorption seat disposed at the bottom of the bracket, wherein the shock absorption ring and the shock absorption seat respectively abut against the outer shell.

[0011] Optionally, the shock-absorbing ring abuts against the bracket in the axial and circumferential directions, respectively, and the shock-absorbing ring abuts against the outer shell in the axial and circumferential directions, respectively.

[0012] Optionally, the shock-absorbing ring is interference-fitted with both the bracket and the housing to prevent gaps from forming.

[0013] Optionally, the shock absorber abuts against the bracket in the axial and circumferential directions, respectively, and the shock absorber abuts against the outer shell in the axial and circumferential directions, respectively.

[0014] Optionally, the shock absorber is configured as a bowl shape, with the bottom end of the bracket embedded in the shock absorber, and the outer side of the shock absorber abutting against the inner side of the outer shell.

[0015] Optionally, shock-absorbing arms are provided on both sides of the bracket, and the shock-absorbing arms abut against the peripheral wall of the outer shell.

[0016] Optionally, the shock-absorbing arm is located between the shock-absorbing ring and the shock-absorbing seat; and / or,

[0017] The shock-absorbing arm has a defined shock-absorbing cavity.

[0018] Optionally, the drive device is located between the damping ring and the damping seat, and close to the damping ring; and / or,

[0019] The fuselage also includes a battery, which is disposed between the shock-absorbing ring and the shock-absorbing base, and close to the shock-absorbing base.

[0020] Optionally, both the shock-absorbing ring and the shock-absorbing seat are components made of elastic material.

[0021] This invention effectively reduces the vibration and noise transmitted from the drive unit to the outer shell by setting a shock-absorbing component between the bracket and the outer shell, thereby improving the user's experience with the electric toothbrush.

[0022] Furthermore, by setting damping rings and damping seats at the top and bottom of the bracket respectively, and making the damping rings and damping seats contact the housing respectively, the vibrations generated at the top and bottom of the bracket can be absorbed and dispersed by the damping rings and damping seats, which can effectively reduce the vibration and noise transmitted to the housing by the drive device.

[0023] Furthermore, by having the damping ring abut against the bracket in both the axial and circumferential directions, and the damping ring abut against the outer casing in both the axial and circumferential directions, and by having the damping seat abut against the bracket in both the axial and circumferential directions, and the damping seat abut against the outer casing in both the axial and circumferential directions, vibrations generated in various directions at the top and bottom of the drive device can be absorbed and dispersed by the damping ring and the damping seat, effectively reducing the vibration and noise transmitted from the drive device to the outer casing.

[0024] Furthermore, by making the damping ring interference fit with the bracket and the housing respectively, gaps between the damping ring and the housing and the bracket can be avoided, thus ensuring the damping effect of the damping ring.

[0025] Furthermore, by setting up shock-absorbing arms on both sides of the bracket to absorb and disperse the vibration and impact force, the vibration and noise transmitted from the drive unit to the housing can be effectively reduced.

[0026] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below.

[0027] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0028] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0029] Figure 1 This is an overall structural diagram of an electric toothbrush with multiple shock absorption functions according to an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 An exploded view of the body and brush head of a Chinese electric toothbrush;

[0031] Figure 3 yes Figure 2 A sectional view of the mid-fuselage along section AA;

[0032] Figure 4 yes Figure 2 Exploded view of the mid-fuselage;

[0033] Figure 5 yes Figure 1 and Figure 2 First schematic diagram of the fuselage after the outer shell has been removed;

[0034] Figure 6 yes Figure 1 and Figure 2 Second schematic diagram of the fuselage after the outer shell has been removed

[0035] Figure 7 yes Figures 4 to 6 First schematic diagram of the main support structure;

[0036] Figure 8 yes Figures 4 to 6 Second schematic diagram of the main support structure;

[0037] Figure 9 yes Figures 4 to 6 First schematic diagram of the middle auxiliary stent;

[0038] Figure 10 yes Figures 4 to 6 Second schematic diagram of the middle and auxiliary stent

[0039] Figure 11 yes Figure 4 First schematic diagram of the containment component;

[0040] Figure 12 yes Figure 4 Second schematic diagram of the middle containment component;

[0041] Figure 13 yes Figure 4 A schematic diagram of the assembly of the middle housing component and the main support frame;

[0042] Figure 14 yes Figures 3 to 6 Schematic diagram of the middle damping ring;

[0043] Figure 15 yes Figure 14 Cross-sectional view of the middle damping ring along section BB;

[0044] Figure 16 yes Figures 3 to 6 First schematic diagram of the middle shock absorber seat;

[0045] Figure 17 yes Figures 3 to 6 Second schematic diagram of the middle shock absorber seat;

[0046] Figure 18 yes Figure 4 First schematic diagram of the middle shell;

[0047] Figure 19 yes Figure 4 Second schematic diagram of the middle shell;

[0048] Figure 20 yes Figure 19 Cross-sectional view of the middle shell along section CC;

[0049] Figure 21 yes Figures 1 to 4 First schematic diagram of the top cover;

[0050] Figure 22 yes Figures 1 to 4 Second schematic diagram of the top cover;

[0051] Figure 23 yes Figures 1 to 4 The third schematic diagram of the top cover.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10. Electric toothbrush;

[0054] 100. Body; 200. Toothbrush head;

[0055] 110. Outer shell; 111. Top opening; 112. Shell; 113. Plum blossom-shaped protrusion; 114. Shock-absorbing groove; 1121. Snap-fit; 1122. Anti-rotation protrusion; 115. Top cover; 1151. Light-transmitting area; 1152. Insertion part; 11521. Slot; 11522. Anti-rotation groove; 11523. Annular groove; 11524. Sealing ring;

[0056] 120. Support; 121. First receiving cavity; 122. Second receiving cavity; 123. Hollow tube section; 124. Main support; 1241. First main connecting part; 1242. Second main connecting part; 1243. Limiting groove; 1244. Fixing protrusion; 125. Secondary support; 1251. First secondary connecting part; 1252. Second secondary connecting part; 1253. Counterweight cavity; 126. Shock-absorbing arm; 1261. Shock-absorbing cavity; 127. External groove;

[0057] 130. Containment component; 131. Third containment cavity; 1311. Outer containment section; 13111. Clearance opening;

[0058] 1312. Internal Containment Department;

[0059] 140. Drive unit; 150. Battery; 160. PCB board;

[0060] 170. Shock-absorbing ring; 171. First ring plate; 172. First pipe section; 173. Second ring plate; 1731. Sealing ring; 174. Second pipe section; 175. Inner ring pipe;

[0061] 180. Shock absorber seat; 181. Seat body; 1811. Plum blossom-shaped groove; 1812. Inner protrusion structure; 1813. Avoidance notch; 1814. Through hole; 1815. Seat cavity;

[0062] 190. Light-emitting element; 1100. Light guide component; 1200. Display device; 1300. Button; 1400. Shock-absorbing component. Detailed Implementation

[0063] It should be noted that in the description of this utility model, the orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0064] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," etc., may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0065] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] Unless otherwise specified, all terms (including technical and scientific terms) used in the description of the embodiments of this utility model shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0067] The following reference Figures 1 to 23 The electric toothbrush 10 with multiple shock absorption functions of this utility model will be described in detail using one embodiment as an example.

[0068] Reference Figure 1 , 2 As shown, in the illustrated embodiment, the bottom of the electric toothbrush 10 can be inserted into the charging base 20 to charge the electric toothbrush 10 via the charging base 20. The electric toothbrush 10 includes a body 100 and a toothbrush head 200 mounted on a drive shaft of the body 100.

[0069] Reference Figure 3 , 4 As shown, in the embodiment shown, the body 100 includes a housing 110, a bracket 120 disposed within the housing 110, a housing 130 mounted on the bracket 120, a drive device 140, a battery 150, a PCB board 160, a shock-absorbing assembly 1400, a light-emitting element 190, a light guide member 1100, a display device 1200 disposed on the housing 110, and buttons 1300.

[0070] The housing 110 has a top opening 111, through which the drive shaft of the drive unit 140 passes and is driven to connect with the toothbrush head 200.

[0071] The PCB board 160 is equipped with an overpressure detection device (not shown in the figure). The overpressure detection device is configured to acquire the deformation signal of the output shaft of the drive device 140 and reduce the operating frequency of the drive device 140 when the deformation signal exceeds a set deformation value, thereby protecting the user from gum damage due to excessive brushing pressure. It should be noted that since the overpressure detection device is a conventional component of the electric toothbrush 10 and is well known to those skilled in the art, it will not be described in detail here.

[0072] Reference Figure 3-6 As shown, in the illustrated embodiment, the bracket 120 defines 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 disposed in the first receiving cavity 121 and has a third receiving cavity 131, the drive device 140 is disposed in the first receiving cavity 121 and its bottom is located in the third receiving cavity 131, and the battery 150 is disposed in the second receiving cavity 122.

[0073] Those skilled in the art will understand that by placing the bracket 120 within the housing 110 and defining a first receiving cavity 121 and a second receiving cavity 122 located at the bottom of the first receiving cavity 121, and arranging a receiving member 130 having a third receiving cavity 131 within the first receiving cavity 121, and placing the bottom of the drive device 140 within the third receiving cavity 131, the receiving member 130 can absorb the vibration directly generated by the drive 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's experience with the electric toothbrush 10.

[0074] Continue to refer to Figure 3-6 As shown, by placing the PCB board 160 on the side of the main support 124 away from the secondary support 125, the support 120 becomes more compact, which in turn makes the body 100 more compact and reduces its size. Of course, those skilled in the art can also place the PCB board 160 on the side of the main support 124 closer to the secondary support 125 as needed.

[0075] Continue to refer to Figure 3-6 As shown, in the embodiment shown, the body 100 also includes a display device 1200 mounted on the housing 110, the display device 1200 being located on the side of the PCB board 160 away from the main bracket 124, and the body 100 also includes a button 1300 mounted on the housing 110 and located on the bottom side of the display device 1200.

[0076] The display device 1200 is electrically connected to the PCB board 160.

[0077] In addition, a pressure detection device (not marked in the figure) corresponding to the button 1300 is provided on the PCB board 160. A pressure deformation silicone (not marked in the figure) is provided between the pressure detection device and the button 1300. By pressing the button 1300, the pressure deformation silicone triggers the pressure detection device to generate control commands for the electric toothbrush 10.

[0078] Reference Figure 7-10 As shown, in the illustrated embodiment, the support 120 includes a main support 124 and a secondary support 125, and the first receiving cavity 121 is defined by the main support 124 and the secondary support 125 together.

[0079] In other words, the main support 124 defines a part of the first receiving cavity 121, and the secondary support 125 defines another part of the first receiving cavity 121. When the two are assembled, they form a complete first receiving cavity 121.

[0080] Those skilled in the art will understand that by setting the bracket 120 as the main bracket 124 and the auxiliary bracket 125, and by defining the first receiving cavity 121 together by the main bracket 124 and the auxiliary bracket 125, the installation of the receiving member 130 is facilitated.

[0081] Reference Figure 7-10 As shown in the embodiment, the main support 124 has a first main connecting portion 1241 on the bottom side of the first receiving cavity 121, and a second main connecting portion 1242 on the top side of the first receiving cavity 121. The auxiliary support 125 has a first auxiliary connecting portion 1251 on the bottom side of the first receiving cavity 121 opposite to the first main connecting portion 1241, and a second auxiliary connecting portion 1252 on the top side of the first receiving cavity 121 opposite to the second main connecting portion 1242. The main support 124 and the auxiliary support 125 are connected through the first main connecting portion 1241 and the first auxiliary connecting portion 1251, and are also connected through the second main connecting portion 1242 and the second auxiliary connecting portion 1252 to define the first receiving cavity 121.

[0082] Continue to participate Figure 7-10As shown, the first main connecting portion 1241 may be provided with two first main threaded holes (not marked in the figure), which are located at both ends of the top side of the first receiving cavity 121. The second main connecting portion 1242 is provided with one second main threaded hole (not marked in the figure), which is located at the center of the bottom side of the first receiving cavity 121. The first auxiliary connecting portion 1251 is provided with two first auxiliary threaded holes (not marked in the figure), which are located at both ends of the top side of the first receiving cavity 121. The second auxiliary connecting portion 1252 is provided with one second auxiliary threaded hole (not marked in the figure), which is located at the center of the bottom side of the first receiving cavity 121. The two first main threaded holes and the two first auxiliary threaded holes correspond one-to-one, and the second main threaded holes and the second auxiliary threaded holes correspond to each other. The main bracket 124 and the auxiliary bracket 125 are fixedly connected by multiple screws passing through the corresponding first main threaded holes, first auxiliary threaded holes, second main threaded holes, and second auxiliary threaded holes.

[0083] Reference Figure 7 , 9 As shown, in the illustrated embodiment, at least one of the main support 124 and the secondary support 125 is provided with a limiting groove 1243, and at least a portion of the receiving member 130 is embedded in the limiting groove 1243 to prevent the receiving member 130 from moving relative to the main support 124.

[0084] Continue to refer to Figure 7 , 9 As shown in the embodiment, the main support 124 may be provided with one limiting groove 1243, and the secondary support 125 may be provided with two limiting grooves 1243. After the main support 124 and the secondary support 125 are assembled together, the three limiting grooves 1243 are distributed axially at intervals.

[0085] Those skilled in the art will understand that by providing a limiting groove 1243 in at least one of the main support 124 and the secondary support 125, and embedding at least a portion of the receiving member 130 into the limiting groove 1243, movement of the receiving member 130 relative to the main support 124 is effectively prevented.

[0086] Reference Figure 10 As shown in the embodiment, a counterweight cavity 1253 is provided on the outer side of the sub-support 125, which is used to install counterweight blocks.

[0087] from Figure 10 As can be seen, the counterweight cavity 1253 has a rectangular structure. Of course, those skilled in the art can also set the counterweight cavity 1253 to other shapes as needed, such as circular, elliptical, or strip-shaped.

[0088] Those skilled in the art will understand that by providing a counterweight cavity 1253 on the outside of the sub-support 125, the electric toothbrush 10 can install a counterweight block in the counterweight cavity 1253 as needed, increasing the weight of the body 100, thereby improving the texture and feel of the electric toothbrush 10, and making the swing amplitude of the toothbrush head 200 more stable during operation.

[0089] Reference Figure 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.

[0090] Those skilled in the art will 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 drive device 140, thereby allowing a portion of the bottom of the drive device 140 to be embedded in the inner receiving portion 1312, so that the bottom of the drive device 140 can be fixedly disposed in the third receiving cavity 131.

[0091] Reference Figure 11-13 As shown in the embodiment, the side wall of the outer receiving portion 1311 is provided with a clearance opening 13111, which may be a rectangular clearance opening 13111. The main support 124 is provided with a fixing protrusion 1244 that matches the clearance opening 13111. The fixing protrusion 1244 is embedded in the clearance opening 13111 to prevent the receiving member 130 from moving relative to the main support 124.

[0092] Those skilled in the art will understand that by engaging the clearance opening 13111 with the fixing protrusion 1244, a more stable connection can be formed between the main support 124 and the housing 110, thereby securing the housing 130 firmly to the main support 124.

[0093] Reference Figure 3-6 As shown, in the illustrated embodiment, a shock-absorbing component 1400 is disposed between the support 120 and the housing 110 to reduce vibrations transmitted from the drive unit 140 to the housing 110 and to reduce noise. The shock-absorbing component 1400 is also configured to prevent rotation of the support 120 relative to the housing 110, ensuring the stability of the electric toothbrush 10 during prolonged use.

[0094] Continue to refer to Figure 3-6 As shown in the embodiment, the shock absorption assembly 1400 includes a shock absorption ring 170 disposed on the top of the bracket 120 and a shock absorption seat 180 disposed on the bottom of the bracket 120, the shock absorption ring 170 and the shock absorption seat 180 respectively abutting against the housing 110.

[0095] 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 is penetrated by the drive shaft, and the shock-absorbing ring 170 abuts against the housing 110 and the bracket 120 respectively.

[0096] Those skilled in the art will understand that by placing the shock-absorbing ring 170 on top of the bracket 120 and abutting against the housing 110 and the bracket 120, the impact force generated on the top of the drive device 140 can be absorbed and dispersed by the shock-absorbing ring 170, which can effectively reduce the vibration and noise transmitted from the drive device 140 to the housing 110.

[0097] Reference Figure 3-6 As shown in 14 and 15, in the embodiments shown therein, the shock-absorbing ring 170 includes a first ring plate 171, a first tube segment 172 disposed on the bottom side of the first ring plate 171, a second ring plate 173 disposed on the outer side of the bottom of the first tube segment 172, and a second tube segment 174 disposed on the bottom side of the second ring plate 173. The first tube segment 172 abuts against the peripheral wall of the top opening 111 of the housing 110, and the second ring plate 173 and the second tube segment 174 are located inside the housing 110 and at least one of them abuts against the bracket 120.

[0098] Those skilled in the art will understand that by abutting the first tube segment 172 of the shock-absorbing ring 170 against the peripheral wall of the top opening 111 of the housing 110, the shock-absorbing ring 170 abuts against the housing 110 in the circumferential direction. By abutting at least one of the second ring plate 173 and the second tube segment 174 of the shock-absorbing ring 170 against the bracket 120, the shock-absorbing ring 170 abuts against the bracket 120 in at least one direction in the circumferential and axial directions. This allows the shock-absorbing ring 170 to absorb and disperse the impact force generated at least one direction in the circumferential and axial directions at the top of the drive device 140, thereby effectively reducing the vibration and noise transmitted from the drive device 140 to the housing 110.

[0099] Continue to refer to Figure 3-6 As shown in 14 and 15, in the embodiments shown therein, the second tube segment 174 is sleeved on the outside of the top of the bracket 120; and / or, the second annular piece 173 abuts against the top of the bracket 120.

[0100] Those skilled in the art will understand that by fitting the second pipe segment 174 onto the outer side of the top of the bracket 120, the damping ring 170 abuts against the bracket 120 in the circumferential direction, and by abutting the second ring plate 173 against the top of the bracket 120, the damping ring 170 abuts against the bracket 120 in the axial direction.

[0101] Reference Figure 14 , 15As shown in the embodiment, a sealing ring 1731 is provided on the 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.

[0102] Those skilled in the art will understand that by having the shock-absorbing ring 170 abut against the bracket 120 in the axial and circumferential directions respectively, and by having the shock-absorbing ring 170 abut against the housing 110 in the axial and circumferential directions respectively, the impact forces generated at the top of the drive device 140 in various directions can be effectively absorbed and dispersed by the shock-absorbing ring 170, thereby effectively reducing the vibration and noise transmitted from the drive device 140 to the housing 110.

[0103] Reference Figure 3-6 As shown in 14 and 15, in the embodiments shown therein, the damping ring 170 further includes an inner ring tube 175 extending from the first ring plate 171 to the second tube segment 174, and the inner ring tube 175 is sleeved with the drive shaft.

[0104] Those skilled in the art will understand that by connecting the inner ring tube 175 to the drive shaft, the vibration transmitted from the drive shaft to the housing 110 is reduced, thus reducing noise.

[0105] Continue to refer to Figure 3-6 As shown in 14 and 15, in the embodiments shown therein, a hollow tube segment 123 is provided at the top of the support 120, an inner ring tube 175 is inserted into the hollow tube segment 123, and the inner ring tube 175, the hollow tube segment 123, and the first tube segment 172 are all spaced apart from each other.

[0106] Those skilled in the art will understand that by having intervals between the inner ring pipe 175, the hollow pipe section 123, and the first pipe section 172, the transmission of vibration between the various parts is effectively reduced, thereby improving the absorption and dispersion effect of the damping ring 170 on the impact force generated by the drive shaft.

[0107] Reference Figure 15 As shown, in the illustrated embodiment, the bottom end of the inner ring pipe 175 extends to the bottom side of the second pipe segment 174.

[0108] Those skilled in the art will understand that by extending the bottom end of the inner ring tube 175 to the bottom side of the second tube segment 174, the coverage area of ​​the inner ring tube 175 over the drive shaft is increased, thereby further reducing the vibration and noise transmitted from the drive shaft to the housing 110.

[0109] Reference Figure 15 As shown, in the embodiment shown, the cross-section of the outer peripheral surface of the bottom of the inner ring tube 175 gradually increases towards the direction of the first ring plate 171.

[0110] Those skilled in the art will understand that by gradually increasing the cross-section of the outer peripheral surface of the bottom of the inner ring tube 175 toward the direction of the first ring plate 171, the fit of the inner ring tube 175 to the drive shaft can be ensured, so as to facilitate the installation between the damping ring 170 and the drive shaft.

[0111] Furthermore, the shock-absorbing ring 170 is interference-fitted with the bracket 120 and the housing 110 respectively to prevent gaps from forming.

[0112] Those skilled in the art will understand 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.

[0113] Reference Figure 3-6 As shown, in the illustrated embodiment, the shock absorber 180 is disposed at the bottom of the bracket 120 and abuts against the housing 110.

[0114] Furthermore, the shock absorber 180 is configured as a bowl shape, and the shock absorber 180 is sleeved on the bottom of the bracket 120, that is, the bottom end of the bracket 120 is embedded in the shock absorber 180, and the outer side of the shock absorber 180 abuts against the inner side of the outer shell 110.

[0115] Reference Figure 16 , 17 As shown, in the illustrated embodiment, the shock absorber 180 includes a seat body 181 that defines a seat cavity 1815 for receiving the bottom of the support 120.

[0116] Those skilled in the art will understand that by having the shock absorber 180 abut against the bracket 120 in the axial and circumferential directions respectively, and by having the shock absorber 180 abut against the housing 110 in the axial and circumferential directions respectively, the shock absorber 180 can effectively absorb and disperse the impact forces generated at the bottom of the drive device 140 in various directions, thereby reducing the vibration transmitted from the drive device 140 to the housing 110 and reducing noise.

[0117] Reference Figure 4-6 As shown in 16 and 17, in the embodiments shown, the peripheral wall of the seat 181 is provided with an avoidance notch 1813, which facilitates the assembly of the electric toothbrush 10.

[0118] Continue to refer to Figure 4-6 As shown in Figures 16 and 17, the clearance notch 1813 is rectangular. Those skilled in the art can also set the clearance notch 1813 to other shapes as needed, such as circular or elliptical.

[0119] Reference Figure 3-6As shown in 16 and 17, in the embodiments shown therein, the base 181 is circumferentially fixed to the bottom of the bracket 120 and the bottom inner side of the outer shell 110, respectively.

[0120] Reference Figure 7 , 8 As shown in Figures 16 and 17, the inner side of the base 181 is provided with a plurality of inner protrusions 1812, and the outer surface of the bottom of the bracket 120 is provided with a plurality of outer grooves 127 that match the inner protrusions. The inner protrusions 1812 are embedded in the outer grooves 127 to fix the bracket 120 and the base 181 circumferentially.

[0121] Optionally, the inner protrusion 1812 extends axially along the seat 181, and the outer groove 127 extends axially along the bracket 120.

[0122] Optionally, there are four internal protrusions 1812 and four external grooves 127.

[0123] Reference Figure 16-20 As shown, one of the outer peripheral surface of the base 181 and the inner peripheral surface of the outer 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. The plum blossom-shaped protrusions 113 are embedded in the plum blossom-shaped grooves 1811 to fix the base 181 and the outer shell 110 circumferentially.

[0124] Those skilled in the art will understand that by circumferentially fixing the base 181 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.

[0125] Reference Figure 16 , 17 As shown in the embodiment, the bottom wall of the seat 181 is provided with a through hole 1814 to balance the air pressure on the inner and outer sides of the seat 181, so as to facilitate the installation of the shock absorber seat 180 at the bottom of the bracket 120.

[0126] Continue to refer to Figure 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 is in the range of 0.5mm to 5mm, for example 0.5mm, 0.8mm, 1mm, 2mm, 3mm, 4.5mm, 5mm, etc.

[0127] Those skilled in the art should understand that, in addition to being circular, the through hole 1814 can also be elliptical, and the diameter of the through hole 1814 is in the range of 0.5mm to 5mm, which can ensure that the through hole 1814 plays its maximum role.

[0128] Reference Figure 5-8 As shown, in the embodiment shown, the shock absorption assembly 1400 further includes a shock absorption arm 126, which is disposed at the top center of the bracket 120. Specifically, shock absorption arms 126 are respectively disposed on both sides of the bracket 120, and the shock absorption arms 126 abut against the peripheral wall of the outer shell 110.

[0129] Reference Figure 5-8 As shown in Figures 18-19, in the embodiment shown, a shock-absorbing groove 114 extending axially is provided inside the housing 110, and a shock-absorbing arm 126 is embedded in the shock-absorbing groove 114 and abuts against the circumferential surface of the shock-absorbing groove 114.

[0130] Those skilled in the art will understand that by providing shock-absorbing arms 126 on both sides of the bracket 120 and having the shock-absorbing arms 126 abut against the housing 110, the impact force generated in the middle section of the drive device 140 can be effectively absorbed and dispersed, thereby reducing the vibration and noise transmitted from the drive device 140 to the housing 110.

[0131] Although not shown in the figure, the ratio of the width of the damping groove 114 to the width of the plum blossom 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 damping groove 114 to the width of the damping arm 126 is selected from between 1.1 and 2, such as 1.1, 1.3, 1.5, 1.8, 2, etc.

[0132] Those skilled in the art will understand that by selecting the ratio of the width of the damping 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 damping groove 114 to the width of the damping arm 126 from between 1.1 and 2, it is ensured that the plum blossom protrusion is embedded in the plum blossom groove while the damping arm 126 is inserted into the damping groove 114, thus preventing interference and failure to install in place.

[0133] Those skilled in the art will understand 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 drive device 140 as a whole can be effectively absorbed and dispersed, thereby reducing the vibration transmitted from the drive device 140 as a whole to the housing 110.

[0134] Reference Figure 7 , 8 As shown, in the illustrated embodiment, a damping cavity 1261 is defined within the damping arm 126.

[0135] Specifically, the shock absorber arm 126 defines two shock absorber cavities 1261 along the longitudinal direction.

[0136] Those skilled in the art will understand that the shock-absorbing cavity 1261 can effectively absorb and disperse the impact force from the middle section of the drive unit 140, thereby reducing the vibration and noise transmitted from the drive unit 140 to the housing 110.

[0137] In one embodiment of this utility model, both the shock-absorbing ring 170 and the shock-absorbing seat 180 are components made of elastic material, which may be rubber.

[0138] Those skilled in the art will understand that by making the shock-absorbing ring 170 and the shock-absorbing base 180 made of elastic material, it can be ensured that the impact force generated by the drive device 140 can be further dispersed and absorbed by the shock-absorbing ring 170 and the shock-absorbing base, thereby further reducing the vibration transmitted from the drive device 140 to the housing 110.

[0139] Reference Figure 3-6 As shown in 18-23, in the embodiments shown therein, the housing 110 includes a housing 112 and a top cover 115 mounted on the top side of the housing 112. The top cover 115 is provided with a light-transmitting area 1151 arranged circumferentially thereon. The light-emitting element 190 is disposed in the housing 110 and configured such that the light emitted by it is transmitted through the light-transmitting area 1151.

[0140] The light-emitting element 190 can be ring-shaped and is sleeved on the outside of the hollow tube segment 123 of the support 120.

[0141] Reference Figure 3 , 4 As shown in the embodiment, by arranging a light-transmitting area 1151 around the top cover 115, the light-emitting unit is placed inside the housing 110, allowing the light emitted to pass through the light-transmitting area 1151. This makes the working status of the electric toothbrush 10 visible, while the light-emitting element 190 is protected by the housing 110 and is not easily damaged. Furthermore, because the top cover 115 is small in size and low in cost, placing the light-transmitting area 1151 on the top cover 115 not only facilitates the processing of the top cover 115 but also reduces the cost losses caused by defect rates.

[0142] Reference Figure 3 , 4 As shown in Figures 21-23, in the embodiments 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.

[0143] Reference Figure 3-6 As shown in the embodiment, 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.

[0144] Those skilled in the art will understand that by mounting the light-emitting unit on the bracket 120, the light from the light-emitting element 190 is directed upwards to the light guide member 1100. By placing the light guide member 1100 between the light-transmitting 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-transmitting area 1151, thereby increasing the amount of light transmitted through the light-transmitting area 1151.

[0145] Reference Figure 21-23 As shown, the light-transmitting area 1151 is set as a ring, which allows the light-emitting element 190 to transmit light in all directions, improving the visualization effect of the working status of the electric toothbrush 10.

[0146] Reference Figure 21-23 As shown, in the embodiment shown, the top cover 115 further includes a plug portion 1152 located on the bottom side of the light-transmitting area 1151, and the top cover 115 is plugged into the housing 112 through the plug portion 1152.

[0147] Reference Figure 18 , 19 As shown in Figures 21-23, in the embodiments shown, the plug-in portion 1152 is provided with a snap-fit ​​structure 11521; and the housing 112 is provided with a snap-fit ​​engagement structure 1121, which snaps into the snap-fit ​​structure 11521 to fix the top cover 115 to the housing 112.

[0148] Reference Figure 18 , 19 As shown in Figures 21-23, in the embodiments shown, the snap-fit ​​structure 11521 can be configured as a slot; the snap-fit ​​engagement structure 1121 can be configured as a buckle.

[0149] Those skilled in the art will understand that by designing the top cover 115 to be inserted into the housing 112 via the insertion part 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 the snap-fit ​​mating structure 1121 as a buckle, the overall structure of the snap-fit ​​structure 11521 and the snap-fit ​​mating structure 1121 is simple and low in cost.

[0150] Reference Figure 18 , 19 As shown in the embodiment, two snap fasteners are provided inside the housing 112 corresponding to the position of each slot, so that the plug-in part and the housing 112 are connected by snap fasteners into the slots.

[0151] Reference Figure 21-23As shown in the embodiment, the insertion part 1152 is also provided with an anti-rotation groove 11522, and the housing 112 is provided with an anti-rotation protrusion 1122. The anti-rotation protrusion 1122 is embedded in the anti-rotation groove 11522 to prevent the top cover 115 from rotating relative to the housing 112.

[0152] Continue to refer to Figure 21-23 As shown in the embodiment, the insertion part 1152 is provided with two opposing anti-rotation grooves 11522, one of which has a wider width than the other; the housing 112 is provided with two anti-rotation protrusions 1122 that are parallel in the circumferential direction and correspond to the wide anti-rotation groove 11522, and the housing 112 is also provided with one anti-rotation protrusion 1122 that corresponds to the narrow anti-rotation groove 11522.

[0153] Those skilled in the art will understand that, since the anti-rotation structure provided in the plug part 1152 is relatively simple, it effectively reduces the cost and reliability of the anti-rotation between the top cover 115 and the housing 112.

[0154] Reference Figure 21-23 As shown in the embodiment, the insertion part 1152 is also provided with an annular groove 11523, which is used to prevent the placement of the sealing ring 11524 so that the top cover 115 is sealed to the housing 112 through the sealing ring 11524.

[0155] In the description of this embodiment, the reference to the term "an embodiment" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0156] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of 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 such other variations or modifications.

Claims

1. An electric toothbrush with multiple shock absorption functions, characterized in that, Includes a toothbrush head and a body, the body comprising: shell; The bracket is disposed within the housing; A drive unit, mounted on the bracket, is used to drive the toothbrush head to vibrate; A shock-absorbing assembly is disposed between the bracket and the housing to reduce the vibration transmitted from the drive device to the housing; The shock absorption assembly includes a shock absorption ring disposed at the top of the bracket and a shock absorption seat disposed at the bottom of the bracket, wherein the shock absorption ring and the shock absorption seat respectively abut against the outer shell.

2. The electric toothbrush according to claim 1, characterized in that, The shock-absorbing ring abuts against the bracket in the axial and circumferential directions, respectively, and the shock-absorbing ring abuts against the outer shell in the axial and circumferential directions, respectively.

3. The electric toothbrush according to claim 2, characterized in that, The shock-absorbing ring is interference-fitted with the bracket and the outer shell respectively to prevent gaps from forming.

4. The electric toothbrush according to claim 1, characterized in that, The shock absorber abuts against the bracket in the axial and circumferential directions, respectively, and the shock absorber abuts against the outer shell in the axial and circumferential directions, respectively.

5. The electric toothbrush according to claim 4, characterized in that, The shock absorber is configured as a bowl shape, with the bottom end of the bracket embedded in the shock absorber, and the outer side of the shock absorber abutting against the inner side of the outer shell.

6. The electric toothbrush according to claim 1, characterized in that, Shock-absorbing arms are provided on both sides of the bracket, and the shock-absorbing arms abut against the peripheral wall of the outer shell.

7. The electric toothbrush according to claim 6, characterized in that, The damping arm is located between the damping ring and the damping seat; and / or The shock-absorbing arm has a defined shock-absorbing cavity.

8. The electric toothbrush according to claim 1, characterized in that, The drive device is located between the damping ring and the damping seat, and is close to the damping ring.

9. The electric toothbrush according to claim 1, characterized in that, The fuselage also includes a battery, which is disposed between the shock-absorbing ring and the shock-absorbing base, and close to the shock-absorbing base.

10. The electric toothbrush according to claim 1, characterized in that, Both the damping ring and the damping seat are components made of elastic material.

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