Base assembly for electric toothbrush and electric toothbrush

Abstract

The present application discloses a base assembly for an electric toothbrush and an electric toothbrush. The electric toothbrush is placed on a placement body by means of a base assembly. The base assembly for the electric toothbrush comprises: a base, wherein a charging port is arranged in the middle of the base; and a base cover, arranged at the bottom of the base, wherein the projection of the base on the base cover does not extend beyond the edge of the base cover, and the base cover can move relative to the base so as to selectively open and close the charging port. The base cover is a metal base cover, and the base cover is provided with a support part suitable for providing support at the placement body.

Description

Base assembly for electric toothbrush and electric toothbrush

[0001] The present application claims priority to the Chinese patent application No. 202421024246.8, filed on May 11, 2024, and entitled "Base assembly for electric toothbrush and electric toothbrush", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of oral cleaning, in particular to a base assembly for electric toothbrush and electric toothbrush. BACKGROUND

[0003] In the related art, the electric toothbrush has a charging interface, which is arranged on the base. After the toothbrush is used, the toothbrush is usually placed vertically on the table top. There are often water stains on the table top, and there are usually residual water stains on the toothbrush. Under the action of gravity, the water stains will flow downward to the base, causing the base to mildew.

[0004] SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a base assembly for electric toothbrush, which can avoid mildewing and bacterial growth of the bottom cover, can prevent deformation, and can also play a supporting and strengthening role, so that the bottom cover can be more stable in cooperation with the placement body of the electric toothbrush.

[0006] The present application further provides an electric toothbrush.

[0007] According to the base assembly for electric toothbrush of the first aspect of the present application, the electric toothbrush is placed on the placement body through the base assembly. The base assembly comprises: a base, the middle part of the base having a charging port; a bottom cover arranged at the bottom of the base, the projection of the base not exceeding the edge of the bottom cover, the bottom cover being movable relative to the base to selectively open and close the charging port, the bottom cover being provided with a support portion adapted to be supported on the placement body.

[0008] Therefore, the base assembly for electric toothbrush can avoid mildewing and bacterial growth of the bottom cover, can prevent deformation, and can also play a supporting and strengthening role, so that the bottom cover can be more stable in cooperation with the placement body of the electric toothbrush.

[0009] According to some embodiments of the present application, the support portion is the bottom surface of the bottom cover.

[0010] According to some embodiments of the present application, the base is formed with a plug-in slot, the charging port is arranged at the bottom of the plug-in slot, the bottom cover is formed with a plug-in protrusion, and the plug-in protrusion is plug-in matched with the plug-in slot.

[0011] According to some embodiments of the present application, the plug-in slot and the plug-in protrusion are interference matched; or the inner circumferential wall of the plug-in slot is arranged with a first clamping part, the outer circumferential wall of the plug-in protrusion is arranged with a second clamping part, and the first clamping part and the second clamping part are clamped matched.

[0012] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises:

[0013] A first elastic sealing member is arranged at the inner circumferential wall of the plug-in slot, and the plug-in protrusion is sealing matched with the first elastic sealing member.

[0014] According to some embodiments of the present application, one end of the first elastic sealing member corresponding to the slot opening of the plug-in slot is arranged with a guide surface, and the guide surface is used for guiding the plug-in protrusion.

[0015] According to some embodiments of the present application, the guide surface is configured as a tapered surface with a cross-sectional area decreasing in the direction adjacent to the bottom of the plug-in slot.

[0016] According to some embodiments of the present application, the inner circumferential wall of the first elastic sealing member is formed with an inwardly protruding sealing part, and the outer circumferential wall of the plug-in protrusion is in contact with the sealing part.

[0017] According to some embodiments of the present application, the plug-in protrusion is formed with an outwardly protruding buckling part, and the buckling part is clamped matched with the sealing part.

[0018] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises: a second elastic sealing member arranged at the outer circumferential wall of the base, and the second elastic sealing member is used for sealing matched with the handle shell of the electric toothbrush.

[0019] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises: an elastic buffer member arranged at the bottom surface of the base and arranged around the slot opening of the plug-in slot.

[0020] According to some embodiments of the present application, the first elastic sealing member, the second elastic sealing member and the elastic buffer member are integrally formed; or the first elastic sealing member and the second elastic sealing member are connected through a connecting member, and the elastic buffer member is integrally formed with the base.

[0021] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises a second elastic seal disposed on the outer circumferential wall of the base, the elastic seal being configured to sealingly engage with the handle shell of the electric toothbrush.

[0022] According to some embodiments of the present application, the inner circumferential wall of the second elastic seal is provided with a first limiting portion, and the outer circumferential wall of the base is provided with a second limiting portion, the first limiting portion being in limiting engagement with the second limiting portion in the thickness direction of the base.

[0023] According to some embodiments of the present application, the first limiting portion is configured as a limiting flange, and the second limiting portion is configured as a limiting ring groove, the limiting flange being engaged in the limiting ring groove.

[0024] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises a third elastic seal disposed on the outer circumferential wall of the base and located on the side of the second elastic seal away from the bottom cover.

[0025] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises an elastic buffer disposed on the bottom surface of the base.

[0026] According to some embodiments of the present application, the bottom cover is provided with a handgrip position.

[0027] According to some embodiments of the present application, the handgrip position is configured as a handgrip notch extending along the edge of the bottom cover.

[0028] According to some embodiments of the present application, the base assembly for the electric toothbrush further comprises a sealing plug sealingly engaged with the charging port.

[0029] According to some embodiments of the present application, the sealing plug is connected to the top of the bottom cover.

[0030] According to some embodiments of the present application, the top of the bottom cover is formed with a mounting groove, and the sealing plug comprises a mounting portion disposed in the mounting groove, and a plug body connected to the mounting portion and sealingly engaged with the charging port.

[0031] According to some embodiments of the present application, the base is provided with a through hole, and the sealing plug further comprises a fixing portion, one end of the fixing portion being connected to the mounting portion, and the other end of the fixing portion being disposed in the through hole, the other end of the fixing portion being movable relative to the through hole, or the fixing portion being deformable.

[0032] According to some embodiments of the present application, the fixing portion is a draw pin, and / or the through hole is a blind hole.

[0033] According to some embodiments of the present application, the base is formed with a plug-in slot, the charging port is arranged at the bottom of the plug-in slot, the bottom cover is formed with a plug-in protrusion, the plug-in protrusion is plugged into the plug-in slot, and a gap is left between the bottom of the plug-in slot and the top of the plug-in protrusion.

[0034] According to some embodiments of the present application, the bottom surface of the bottom cover is smoothly transitioned at the edge.

[0035] According to some embodiments of the present application, the bottom cover is a metal bottom cover.

[0036] According to some embodiments of the present application, the base has a fitting surface in contact with the bottom cover, and the fitting surface is arranged around the charging port.

[0037] The electric toothbrush according to the second aspect of the present application comprises the base assembly for the electric toothbrush.

[0038] According to some embodiments of the present application, the electric toothbrush further comprises a handle shell, and the handle shell comprises:

[0039] a shell, an inner shell arranged at the inner circumferential wall of the shell, the bottom of the inner shell being higher than the bottom of the shell, and the inner circumferential wall of the inner shell and the inner circumferential wall of the shell lower than the inner circumferential wall of the inner shell being sealingly matched with the base.

[0040] According to some embodiments of the present application, the electric toothbrush further comprises a second elastic sealing member arranged at the outer circumferential wall of the base, the second elastic sealing member being sealingly matched with the inner circumferential wall of the shell lower than the inner shell, and a third elastic sealing member arranged at the outer circumferential wall of the base and located at the side of the second elastic member away from the bottom cover, the third elastic sealing member being sealingly matched with the inner circumferential wall of the inner shell.

[0041] According to some embodiments of the present application, the inner circumferential wall of the inner shell is provided with a third clamping part, the outer circumferential wall of the base is provided with a fourth clamping part, and the third clamping part is clamped and matched with the fourth clamping part.

[0042] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0043] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0044] Fig. 1 is a structural schematic diagram of an electric toothbrush containing a base assembly according to an embodiment of the present application;

[0045] Fig. 2 is a sectional view of the base assembly according to an embodiment of the present application;

[0046] Fig. 3 is a structural schematic diagram of the base assembly containing a second elastic sealing member according to an embodiment of the present application;

[0047] Fig. 4 is a structural schematic diagram of the bottom cover containing a hand holding position according to an embodiment of the present application;

[0048] Fig. 5 is a structural schematic diagram of the bottom cover according to an embodiment of the present application;

[0049] Fig. 6 is a structural schematic diagram of the sealing plug containing a plug body according to an embodiment of the present application;

[0050] Fig. 7 is an isometric view of the sealing plug according to an embodiment of the present application;

[0051] Fig. 8 is a structural schematic diagram of the insertion slot containing a first elastic sealing member according to an embodiment of the present application;

[0052] Fig. 9 is a structural schematic diagram of the sealing plug located in the insertion slot according to an embodiment of the present application;

[0053] Fig. 10 is a structural schematic diagram of the base containing a charging port according to an embodiment of the present application;

[0054] Fig. 11 is a structural schematic diagram of the base assembly containing a third elastic sealing member according to an embodiment of the present application;

[0055] Fig. 12 is an exploded view of the buffer and the bottom cover according to an embodiment of the present application;

[0056] Fig. 13 is an exploded view of the sealing plug and the bottom cover according to an embodiment of the present application.

[0057] Reference signs: 200, electric toothbrush; 100, base assembly; 10, base; 11, charging port; 12, insertion slot; 13, second limiting portion; 14, through hole; 20, bottom cover; 21, support portion; 22, insertion protrusion; 222, buckling portion; 23, hand holding position; 24, installation slot; 30, first elastic sealing member; 31, sealing portion; 40, guide surface; 50, second elastic sealing member; 51, first limiting portion; 60, elastic buffer; 70, sealing plug; 71, installation portion; 72, plug body; 73, fixing portion; 80, handle shell; 81, outer shell; 82, inner shell; 90, third elastic sealing member. DETAILED DESCRIPTION

[0058] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0059] The base assembly 100 of the electric toothbrush 200 according to the embodiments of the present application is described below with reference to FIGS. 1-13.

[0060] As shown in FIGS. 1 and 2, the base assembly 100 of the electric toothbrush 200 according to the embodiments of the first aspect of the present application, the electric toothbrush 200 is placed on a placement body through the base assembly 100, the base assembly 100 comprises a base 10 and a bottom cover 20, the middle part of the base 10 is provided with a charging port 11, the bottom cover 20 is arranged on the bottom of the base 10, the projection of the base 10 on the bottom cover 20 does not exceed the edge of the bottom cover 20, the bottom cover 20 can move relative to the base 10, so as to selectively open and close the charging port 11, the bottom cover 20 is provided with a supporting part 21, the supporting part 21 is adapted to be supported on the placement body of the electric toothbrush 200.

[0061] For example, the middle part of the base 10 of the electric toothbrush 200 is provided with the charging port 11, which can play a role in protecting the charging port 11, and can also make the position of the base 10 prone to mold away from the charging port 11, so as to avoid the failure of the charging port 11 and reduce the influence on the charging port 11. The bottom cover 20 is connected to the bottom of the base 10, which plays a role in closing the base 10 and can prevent water stains from flowing to the inside of the base 10 due to splashing. The projection of the base 10 on the bottom cover 20 does not exceed the edge of the bottom cover 20, which can further improve the sealing performance of the base assembly 100, and the bottom cover 20 can fully seal the base 10, so as to avoid mold and bacterial growth on the bottom of the base 10 and the outer edge thereof. In addition, under the action of external force, the bottom cover 20 can slide relative to the base 10, which has the advantages of labor-saving disassembly and installation. Moreover, the charging port 11 is selectively opened and closed, that is, when charging is needed, the bottom cover 20 is disassembled, which can facilitate the opening of the charging port 11, and after the charging is completed, the bottom cover 20 is installed, and the bottom cover 20 further closes the charging port 11, so as to improve the waterproof performance of the electric toothbrush 200.

[0062] Further, the bottom cover 20 is provided with the supporting part 21, the supporting part 21 can play a role in supporting and strengthening, and can also increase the contact area of the bottom cover 20 and the placement body, the placement body can be a toothbrush jar or a washstand, so as to make the base assembly 100 placed more stably, and also to avoid being placed on the washstand.

[0063] Therefore, the base assembly 100 of the electric toothbrush 200 can avoid mold and bacterial growth of the bottom cover 20, can prevent deformation, and can also play a role in supporting and strengthening, so as to make the cooperation of the bottom cover 20 and the placement body of the electric toothbrush 200 more stable.

[0064] According to some embodiments of the present application, as shown in FIGS. 4 and 5, the supporting part 21 is the bottom surface of the bottom cover 20.

[0065] The bottom surface of the support portion 21 extends to the outer edge of the base 10, so that the gravity of the entire electric toothbrush 200 is transmitted from the center of the bottom surface of the bottom cover 20 to the outside, and then to the placement body, thereby reducing the stress on the bottom cover 20. The middle part of the bottom surface of the support portion 21 is disc-shaped, which can further increase the contact area between the bottom surface of the bottom cover 20 and the placement body, thereby further reducing the stress on the bottom cover 20. Moreover, the edge of the bottom surface of the bottom cover 20 is inwardly bent, which can naturally transition the bottom surface of the bottom cover 20 to the handle shell 80. The bottom surface is used as the support portion 21, which not only has a supporting and reinforcing effect, but also improves the stability of the cooperation between the bottom cover 20 and the placement body of the electric toothbrush 200.

[0066] According to some embodiments of the present application, as shown in FIGS. 5 and 10, the base 10 is formed with a plug-in groove 12, and the charging port 11 is arranged at the groove bottom of the plug-in groove 12. The bottom cover 20 is formed with a plug-in protrusion 22, and the plug-in protrusion 22 is plug-in matched with the plug-in groove 12.

[0067] The base 10 is provided with the plug-in groove 12, which can facilitate the plug-in protrusion 22 to extend into the plug-in groove 12 to close the plug-in groove 12, thereby preventing water from flowing to the charging port 11. Moreover, the plug-in matching method is simple and convenient, which can further facilitate the cooperation between the base 10 and the bottom cover 20.

[0068] According to some embodiments of the present application, the plug-in groove 12 is interference matched with the plug-in protrusion 22, or the inner circumferential wall of the plug-in groove 12 is provided with a first clamping portion, and the outer circumferential wall of the plug-in protrusion 22 is provided with a second clamping portion, and the first clamping portion and the second clamping portion are clamped and matched.

[0069] For example, when the plug-in groove 12 is interference matched with the plug-in protrusion 22, the plug-in groove 12 and the plug-in protrusion 22 can be more tightly and stably connected, which can improve the sealing performance of the base assembly 100. When the outer circumferential wall of the plug-in protrusion 22 is provided with the second clamping portion, the second clamping portion can be provided as a clamping protrusion. Correspondingly, the inner circumferential wall of the plug-in groove 12 is provided with the first clamping portion, which can be provided as a clamping groove. In this way, the clamping protrusion and the clamping groove are clamped and matched, thereby facilitating the installation and disassembly of the bottom cover 20 and the base 10.

[0070] According to some embodiments of the present application, as shown in FIG. 2, the base assembly 100 of the electric toothbrush 200 further comprises a first elastic sealing member 30, which is arranged at the inner circumferential wall of the plug-in groove 12, and the plug-in protrusion 22 is sealingly matched with the first elastic sealing member 30.

[0071] The first elastic sealing member 30 is elastically deformable and is located between the plug protrusion 22 and the inner circumferential wall of the plug slot 12, so that the plug protrusion 22 and the first elastic sealing member 30 are more tightly sealed.

[0072] According to some embodiments of the present application, as shown in FIG. 2, one end of the first elastic sealing member 30 corresponding to the slot of the plug slot 12 is provided with a guide surface 40, which is used to guide the plug protrusion 22.

[0073] The guide surface 40 can be provided as a guide inclined surface, which can guide the insertion of the plug protrusion 22, so that the plug protrusion 22 can be easily inserted into the plug slot 12, and interference between the plug protrusion 22 and the slot of the plug slot 12 can be avoided.

[0074] According to some embodiments of the present application, as shown in FIG. 2, the guide surface 40 is configured as a tapered surface with a decreasing cross-sectional area in the direction adjacent to the bottom of the plug slot 12. Thus, when the plug protrusion 22 starts to enter the plug slot 12, it is relatively labor-saving. As the plug protrusion 22 is inserted, the plug protrusion 22 and the inner circumferential wall of the plug slot 12 are gradually matched more and more tightly, so that the bottom cover 20 can be prevented from falling off.

[0075] According to some embodiments of the present application, as shown in FIG. 2, the inner circumferential wall of the first elastic sealing member 30 is formed with a sealing portion 31 protruding inwardly, and the outer circumferential wall of the plug protrusion 22 is in contact with the sealing portion 31.

[0076] The sealing portion 31 cooperates with the outer circumferential wall of the plug protrusion 22 to ensure the sealing between the plug protrusion 22 and the sealing portion 31, so that water can be prevented from flowing into the plug slot 12. The sealing portion 31 can be a ring-shaped sealing protrusion.

[0077] According to some embodiments of the present application, the plug protrusion 22 is formed with a buckling portion 222 protruding outwardly, and the buckling portion 222 is in clamping cooperation with the sealing portion 31.

[0078] The buckling portion 222 can be provided as a protrusion, and correspondingly, the sealing portion 31 can be a ring-shaped sealing protrusion. The protrusion extends into the upper side of the sealing protrusion, and the two are clamped and cooperated, so that the installation and disassembly of the plug protrusion 22 and the sealing portion 31 can be facilitated, and a sealing effect can be achieved.

[0079] According to some embodiments of the present application, as shown in FIG. 2, the base assembly 100 of the electric toothbrush 200 further comprises a second elastic sealing member 50, which is provided on the outer circumferential wall of the base 10 and is used to be in sealing cooperation with the handle shell 80 of the electric toothbrush 200.

[0080] The second elastic sealing member 50 is arranged between the handle shell 80 and the outer peripheral wall of the base 10, so that the connection between the outer peripheral wall of the base 10 and the handle shell 80 is more compact, and the sealing and waterproof effects are further achieved.

[0081] According to some embodiments of the present application, as shown in FIG. 2, the base assembly 100 of the electric toothbrush 200 further comprises an elastic buffer 60, which is arranged on the bottom surface of the base 10 and surrounds the slot of the insertion slot 12.

[0082] The elastic buffer 60 is a buffer pad, which can reduce noise when the bottom cover 20 is sealed with the charging port 11, and has a buffering effect when the handle is clamped. When the electric toothbrush 200 is placed vertically on the table, the elastic buffer 60 also has a buffering effect, so that the internal parts of the electric toothbrush 200 are not damaged.

[0083] According to some embodiments of the present application, the first elastic sealing member 30, the second elastic sealing member 50 and the elastic buffer 60 are integrally formed, or the first elastic sealing member 30 and the second elastic sealing member 50 are connected by a connecting member, and the elastic buffer 60 is integrally formed with the base 10.

[0084] When the first elastic sealing member 30, the second elastic sealing member 50 and the elastic buffer 60 are integrally formed, the number of parts is reduced, the assembly process is reduced, time is saved, the installation efficiency is improved, and the gap between the parts is reduced, so that the sealing and waterproof performance of the base 10 is not affected.

[0085] According to some embodiments of the present application, the base assembly 100 of the electric toothbrush 200 further comprises a second elastic sealing member 50, which is arranged on the outer peripheral wall of the base 10. The elastic sealing member is used for sealing cooperation with the handle shell 80 of the electric toothbrush 200, so that the outer peripheral wall of the base 10 and the handle shell 80 are more tightly sealed.

[0086] According to some embodiments of the present application, as shown in FIG. 3, the inner peripheral wall of the second elastic sealing member 50 is provided with a first limiting portion 51, and the outer peripheral wall of the base 10 is provided with a second limiting portion 13. The first limiting portion 51 and the first limiting portion 51 are limited and cooperated in the thickness direction of the base 10.

[0087] The first limiting portion 51 is arranged protruding towards the outer peripheral wall of the base 10, and the first limiting portion 51 and the second limiting portion 13 are limited and cooperated, so that the first limiting portion 51 and the second limiting portion 13 are prevented from moving in the axial direction of the electric toothbrush 200.

[0088] According to some embodiments of the present application, as shown in FIG. 3, the first limiting part 51 is configured as a limiting flange, and the second limiting part 13 is configured as a limiting ring groove, and the limiting flange is matched with the limiting ring groove.

[0089] Exemplarily, the limiting flange is located in the limiting ring groove, so that the movement of the first limiting part 51 relative to the second limiting part 13 along the axial direction of the electric toothbrush 200 is limited, thereby ensuring the accuracy of the installation position between the base 10 and the second elastic sealing member 50.

[0090] According to some embodiments of the present application, as shown in FIG. 3, the base assembly 100 of the electric toothbrush 200 further comprises a third elastic sealing member 90, which is arranged on the outer peripheral wall of the base 10, and the third elastic sealing member 90 is located on the side of the second elastic sealing member away from the bottom cover 20.

[0091] Among them, the third elastic sealing member 90 is located between the outer peripheral wall of the base 10 and the inner shell 82, so as to avoid water stains flowing into the base 10 from the gap between the outer peripheral wall of the base 10 and the inner shell 82, and the third elastic sealing member 90 can be arranged as a sealing ring, which deforms under the extrusion between the outer peripheral wall of the base 10 and the inner shell 82, thereby improving the sealing between the outer peripheral wall of the base 10 and the inner shell 82.

[0092] According to some embodiments of the present application, as shown in FIG. 2 and FIG. 12, the base assembly 100 of the electric toothbrush 200 further comprises an elastic buffer 60, which is arranged on the bottom surface of the base 10, thereby playing a role in reducing noise, and also realizing the soft connection of the parts on the bottom surface of the base 10 and the bottom cover 20, thereby avoiding the bottom surface of the base 10 from being impacted and worn.

[0093] Further, the elastic buffer 60 is arranged at the metal bottom cover 20, which can ensure that the structure of the elastic buffer 60 does not deform, and also can ensure that the connection of the elastic buffer 60 and the base 10 is more stable.

[0094] According to some embodiments of the present application, as shown in FIG. 4 and FIG. 5, the bottom cover 20 is provided with a hand holding position 23, and the hand holding position 23 is arranged, thereby facilitating the installation and disassembly of the bottom cover 20.

[0095] According to some embodiments of the present application, as shown in FIG. 5, the hand holding position 23 is configured as a hand holding notch, and the hand holding notch extends along the edge of the bottom cover 20.

[0096] Exemplarily, the edge of the bottom cover 20 is provided with the hand holding notch, so that the hand or tool can be inserted, thereby facilitating disassembly.

[0097] According to some embodiments of the present application, as shown in FIG. 2 and FIG. 6, the base assembly 100 of the electric toothbrush 200 further comprises a sealing plug 70, which is in sealing cooperation with the charging port 11.

[0098] The sealing plug 70 can extend into the charging port 11, so as to close the charging port 11, and thus the sealing property of the charging port 11 can be further ensured.

[0099] According to some embodiments of the present application, the sealing plug 70 is connected to the top of the bottom cover 20. In this way, the space between the bottom cover 20 and the charging port 11 can be sealed, and thus the sealing property between the bottom cover 20 and the charging port 11 can be ensured.

[0100] According to some embodiments of the present application, as shown in FIG. 5 and FIG. 6, the top of the bottom cover 20 is formed with a mounting groove 24, and the sealing plug 70 comprises a mounting portion 71 and a plug body 72, the mounting portion 71 is arranged in the mounting groove 24, and the plug body 72 is connected to the mounting portion 71 and is in sealing cooperation with the charging port 11.

[0101] The mounting groove 24 can accommodate the mounting portion 71, so that the length of the electric toothbrush 200 as a whole can be reduced by reasonably utilizing the space, and the plug body 72 is connected to the top of the mounting portion 71, and the shape of the plug body 72 corresponds to the shape of the charging port 11, so that the plug body 72 can be more tightly cooperated with the charging port 11, and thus the entry of water stains can be prevented, and short circuit at the charging port 11 can also be avoided.

[0102] According to some embodiments of the present application, as shown in FIG. 3 and FIG. 6, the base 10 is provided with a through hole 14, and the sealing plug 70 further comprises a fixing portion 73, one end of the fixing portion 73 is connected to the mounting portion 71, and the other end of the fixing portion 73 is arranged in the through hole 14, and the other end of the fixing portion 73 is movable relative to the through hole 14, or the fixing portion 73 is deformable.

[0103] The base 10 is provided with the through hole 14, so that the fixing portion 73 can be conveniently arranged, the other end of the fixing portion 73 is movable relative to the through hole 14, or the fixing portion 73 is deformable, so that the fixing portion 73 can be conveniently slid relative to the through hole 14, and thus the sealing plug 70 can be conveniently disassembled.

[0104] According to some embodiments of the present application, as shown in FIG. 6, the fixing portion 73 is a pull nail, and / or the through hole 14 is a blind hole. In this way, the pull nail extends into the blind hole, so that water can be prevented from entering from the through hole 14, and the sealing plug 70 can be pulled to the base 10 by the pull nail, so that the sealing plug 70 is not easy to be lost.

[0105] According to some embodiments of the present application, as shown in FIG. 10, the base 10 is formed with a plug slot 12, the charging port 11 is arranged at the bottom of the plug slot 12, the bottom cover 20 is formed with a plug protrusion 22, the plug protrusion 22 is plugged with the plug slot 12, and a gap is left between the bottom of the plug slot 12 and the top of the plug protrusion 22.

[0106] The plug protrusion 22 is arranged separately from the bottom of the plug slot 12 to form the gap, which allows the pull pin to be folded at least once in the space, thereby shortening the length of the via hole 14, expanding the movement range of the sealing plug 70, and avoiding the length of the via hole 14 affecting the overall length of the bottom cover 20, which is not suitable for being too long, otherwise it is easy to interfere with the movement of the core, or the overall length of the machine body is too long.

[0107] According to some embodiments of the present application, as shown in FIG. 4, the bottom surface edge of the bottom cover 20 is smoothly transitioned. In this way, stress concentration can be avoided at the bottom surface edge of the bottom cover 20, and collision can also be prevented at the bottom surface edge of the bottom cover 20, thereby prolonging the service life of the bottom cover 20.

[0108] According to some embodiments of the present application, as shown in FIG. 4 and FIG. 5, the bottom cover 20 is a metal bottom cover. In this way, mold and bacterial growth of the bottom cover 20 can be avoided, and the metal bottom cover 20 has high strength, thereby preventing deformation.

[0109] According to some embodiments of the present application, the base 10 has a contact surface in contact with the bottom cover 20, and the contact surface is arranged around the charging port 11.

[0110] In this way, the outer edge of the metal bottom cover 20 is tightly attached to the outer edge of the base 10, thereby further improving the sealing performance of the bottom of the base 10, further reducing the influence on the charging port 11, and further preventing mold growth at the bottom of the base 10. Since the metal bottom cover 20 has the effect of preventing mold growth, mold growth at the bottom of the electric toothbrush 200 can also be avoided.

[0111] According to the electric toothbrush 200 of the second aspect of the present application, the electric toothbrush 200 comprises the base assembly 100 of the electric toothbrush 200 of the above-mentioned embodiments.

[0112] According to some embodiments of the present application, as shown in FIG. 2, the electric toothbrush 200 further comprises a handle shell 80, and the handle shell 80 comprises an outer shell 81 and an inner shell 82, the inner shell 82 is arranged on the inner peripheral wall of the outer shell 81, the bottom of the inner shell 82 is higher than the bottom of the outer shell 81, and the inner peripheral wall of the inner shell 82 and the inner peripheral wall of the part of the outer shell 81 lower than the inner shell 82 are respectively sealed with the base 10.

[0113] The inner shell 82 is arranged on the inner circumferential wall of the outer shell 81, so that the strength of the handle shell 80 as a whole can be further improved. The bottom of the inner shell 82 is higher than the bottom of the outer shell 81, so that installation space can be provided for the bottom cover 20 and the sealing plug 70. Moreover, the inner circumferential wall of the inner shell 82 and the inner circumferential wall of the portion of the outer shell 81 that is lower than the inner shell 82 are respectively in sealing fit with the base 10, so that the sealing performance between the base 10 and the inner circumferential wall of the inner shell 82 and the inner circumferential wall of the portion of the outer shell 81 that is lower than the inner shell 82 can be improved.

[0114] According to some embodiments of the present application, as shown in FIG. 3 and FIG. 11, the electric toothbrush 200 further comprises a second elastic sealing member 50 and a third elastic sealing member 90. The second elastic sealing member 50 is arranged on the outer circumferential wall of the base 10, and is in sealing fit with the inner circumferential wall of the portion of the outer shell 81 that is lower than the inner shell 82. The third elastic sealing member 90 is arranged on the outer circumferential wall of the base 10, and is located on the side of the second elastic member that is away from the bottom cover 20. The third elastic sealing member 90 is in sealing fit with the inner circumferential wall of the inner shell 82.

[0115] The arrangement of the second elastic sealing member 50 and the third elastic sealing member 90 can achieve multiple sealing of the base 10 with the outer shell 81 and the inner shell 82. Moreover, the second elastic sealing member 50 and the third elastic sealing member 90 can be high-temperature-resistant sealing members, so that the service life thereof can be improved, and the demand of the electric toothbrush 200 in different scenarios can be met.

[0116] According to some embodiments of the present application, the inner circumferential wall of the inner shell 82 is provided with a third clamping portion, and the outer circumferential wall of the base 10 is provided with a fourth clamping portion. The third clamping portion and the fourth clamping portion are in clamping fit, so that the installation and dismounting of the inner shell 82 with the base 10 can be facilitated.

[0117] In the description of the present application, it should be understood that the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0118] In the description of the application, reference has been made to descriptive terms such as "one embodiment", "some embodiments", "an embodiment", "exemplary embodiment", "specific example", or "some examples" etc. It is emphasized that these terms are not intended to mean that a particular feature, structure, material or characteristic was included in at least one embodiment or example. Rather, such terms are used merely for the purpose of providing an example or examples in conjunction with which the particular feature, structure, material or characteristic is described.

[0119] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application. The scope of the application is to be limited only by the claims and their equivalents.

Claims

1. A base assembly for an electric toothbrush, the electric toothbrush being placed on a placement body through the base assembly, the base assembly comprising: a base, a middle portion of the base having a charging port; and a bottom cover, the bottom cover being arranged at a bottom portion of the base, a projection of the base not exceeding an edge of the bottom cover, the bottom cover being movable relative to the base to selectively open and close the charging port, the bottom cover being provided with a support portion, the support portion being adapted to be supported on the placement body.

2. The base assembly for an electric toothbrush of claim 1, wherein, The support portion is a bottom surface of the bottom cover.

3. The base assembly for an electric toothbrush of claim 1, wherein, The base is formed with a plug-in slot, the charging port being arranged at a slot bottom of the plug-in slot, the bottom cover being formed with a plug-in protrusion, the plug-in protrusion being plug-in matched with the plug-in slot.

4. The base assembly for an electric toothbrush of claim 3, wherein, Further comprising: a first elastic sealing member, the first elastic sealing member being arranged at an inner circumferential wall of the plug-in slot, the plug-in protrusion being sealing matched with the first elastic sealing member.

5. The base assembly for an electric toothbrush of claim 4, wherein, An end of the first elastic sealing member corresponding to a slot opening of the plug-in slot is provided with a guide surface, the guide surface being arranged to guide the plug-in protrusion.

6. The base assembly for an electric toothbrush of claim 5, wherein, The guide surface is configured as a tapered surface with a cross-sectional area decreasing in a direction adjacent to the slot bottom of the plug-in slot.

7. The base assembly for an electric toothbrush of claim 4, wherein, An inner circumferential wall of the first elastic sealing member is formed with a sealing portion protruding inward, an outer circumferential wall of the plug-in protrusion being in contact with the sealing portion.

8. The base assembly for an electric toothbrush of claim 7, wherein, The plug-in protrusion is formed with a buckling portion protruding outward, the buckling portion being snap matched with the sealing portion.

9. The base assembly for an electric toothbrush of claim 4, wherein, Further comprising: a second elastic sealing member, the second elastic sealing member being arranged at an outer circumferential wall of the base, the second elastic sealing member being arranged to be sealing matched with a handle shell of the electric toothbrush.

10. The base assembly for an electric toothbrush of claim 9, wherein, Further comprising: an elastic buffer member, the elastic buffer member being arranged at a bottom surface of the base and around the slot opening of the plug-in slot.

11. The base assembly for an electric toothbrush of claim 1, wherein, Further comprising: a second elastic sealing member, the second elastic sealing member being arranged at an outer circumferential wall of the base, the second elastic sealing member being arranged to be sealing matched with a handle shell of the electric toothbrush.

12. The base assembly for an electric toothbrush of claim 11, wherein, An inner circumferential wall of the second elastic sealing member is provided with a first limiting portion, an outer circumferential wall of the base being provided with a second limiting portion, the first limiting portion being limiting matched with the first limiting portion in a thickness direction of the base.

13. The base assembly for an electric toothbrush of claim 12, wherein, The first limiting portion is configured as a limiting flange, the second limiting portion is configured as a limiting ring groove, the limiting flange being matched in the limiting ring groove.

14. The base assembly for an electric toothbrush of claim 12, wherein, Further comprising: a third elastic sealing member, the third elastic sealing member being arranged at the outer circumferential wall of the base and being located at a side of the second elastic member away from the bottom cover.

15. The base assembly for an electric toothbrush of claim 1, wherein, Further comprising: a sealing plug, the sealing plug being connected to a top portion of the bottom cover, the sealing plug being sealing matched with the charging port.

16. The base assembly for an electric toothbrush of claim 15, wherein, The top portion of the bottom cover is formed with a mounting slot, the sealing plug comprising: a mounting portion, the mounting portion being arranged at the mounting slot; a plug body, the plug body being connected to the mounting portion, the plug body being sealing matched with the charging port.

17. The base assembly for an electric toothbrush of claim 16, wherein, The base is provided with a through hole, the sealing plug further comprising: a fixing portion, one end of the fixing portion being connected with the mounting portion, the other end of the fixing portion being arranged at the through hole, the other end of the fixing portion being movable relative to the through hole, or the fixing portion being deformable.

18. The base assembly for an electric toothbrush of claim 17, wherein, The base is formed with a plug-in slot, the charging port is arranged at the bottom of the plug-in slot, the bottom cover is formed with a plug-in protrusion, the plug-in protrusion is plugged with the plug-in slot, and a gap is left between the bottom of the plug-in slot and the top of the plug-in protrusion.

19. An electric toothbrush comprising: A base assembly for an electric toothbrush according to any one of claims 1-18.

20. The electrically powered toothbrush of claim 19 wherein, Also included is a handle shell, the handle shell including: An outer shell; An inner shell arranged at an inner peripheral wall of the outer shell, a bottom of the inner shell being higher than a bottom of the outer shell, and an inner peripheral wall of the inner shell and an inner peripheral wall of the outer shell lower than the inner shell being respectively sealed with the base.

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