Waterproof assembly applied to electric toothbrush
By designing a flip-up sealing component and sealing ring structure on the electric toothbrush, the problem of water easily entering the charging port in humid environments is solved, achieving better waterproof performance and ensuring the normal use of the electric toothbrush.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ANDA LOTUS CONVERTING
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-17
AI Technical Summary
The charging port of existing electric toothbrushes is prone to water ingress in humid environments, which can lead to damage to the charging port and internal short circuits, affecting normal use.
A waterproof component was designed, including a flip-up closure component and a sealing ring structure. Through the cooperation of a movable plate and a spring, the charging port is automatically closed and sealed to prevent moisture from entering.
The improved waterproofing of the electric toothbrush reduces the risk of damage to the charging port, ensuring normal operation of the device.
Smart Images

Figure CN224126102U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electric toothbrush technology, and more particularly to a waterproof component used in electric toothbrushes. Background Technology
[0002] As people's living standards improve, electric toothbrushes have become a common tool for oral hygiene. Because they are often used in humid environments, such as the washbasin, and come into direct contact with water during brushing, the waterproof performance of electric toothbrushes is crucial.
[0003] Currently, most electric toothbrushes have their charging ports located at the bottom, and many only use a rubber pad inserted into the port for protection. In actual use, the charging port is susceptible to water ingress in humid environments, leading to damage and even, in severe cases, short circuits within the toothbrush, affecting its normal operation. Therefore, this invention proposes a waterproof component for electric toothbrushes. Utility Model Content
[0004] In view of the above problems, this application provides a waterproof component for electric toothbrushes to solve the problem of insufficient waterproof effect at the charging port of existing electric toothbrushes.
[0005] This application provides a waterproof component for an electric toothbrush, including a housing, a main unit installed inside the housing, a brush head extending from the top of the main unit and mounted thereon, a button mounted on the side wall of the housing, an annular plate fixedly connected to the bottom surface of the housing, a base plate disposed at the center of the bottom surface of the annular plate, a charging port mounted on one side of the base plate, and flip-close components disposed on both sides of the base plate.
[0006] In some embodiments, the flip-close assembly includes a fixed shell. Two fixed shells are symmetrically fixedly connected to the top surface of the annular plate. A movable plate is movably connected to the inner cavity of each fixed shell. The bottom surface of the movable plate passes through the annular plate and is movably connected to a side tube. The side tube is fixedly connected to the bottom plate. A vertical hole is opened at the center of the top surface of the movable plate. The vertical hole communicates with the side tube. A vertical tube is movably connected inside the vertical hole. The top end of the vertical tube passes through the top surface of the fixed shell and is fixedly connected to the fixed shell. A spring is sleeved on the vertical tube. One end of the spring is fixedly connected to the top surface of the inner cavity of the fixed shell, and the other end of the spring is fixedly connected to the top surface of the movable plate.
[0007] In some embodiments, the annular plates are provided with through grooves at the fixed shell locations, and a first sealing ring is fixedly connected in each through groove, with the movable plate passing through the through groove.
[0008] In some embodiments, an elastic sealing ring is fixedly connected to the inner cavity of the vertical tube near the top end, and the outer diameter of the elastic sealing ring is the same as the inner diameter of the vertical tube.
[0009] In some embodiments, the outer diameter of the base plate is larger than the inner diameter of the annular plate, and a second sealing ring is fixedly connected to both the upper and lower side walls of the base plate. A sealing groove matching the second sealing ring is formed on the bottom surface of the annular plate.
[0010] In some embodiments, a support plate is fixedly connected to the bottom surface of the annular plate, the support plate being circular and having the same outer diameter as the annular plate.
[0011] In some embodiments, a leather pad is fixedly connected to the bottom surface of the support plate, and the leather pad is arranged in a circular shape.
[0012] With the above solution, the base plate can be pulled during use, causing the movable plate to move within the fixed shell. The movable plate then stretches the spring. When the base plate moves away from the annular plate by a certain distance, rotating the base plate around the side tube releases the base plate. Under the action of the spring, the base plate can be pressed tightly against the bottom surface of the annular plate. At this time, if the charging port faces downwards, it is convenient for charging. If the charging port faces upwards, it can be sealed inside the shell cavity, reducing the amount of water entering the charging port and improving the waterproof effect of the electric toothbrush, resulting in better performance.
[0013] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this application;
[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the outer shell of this application;
[0017] Figure 3 This is a three-dimensional structural diagram of the annular plate in this application;
[0018] Figure 4 For the purposes of this application Figure 2Enlarged view of point A;
[0019] Figure 5 This is a schematic diagram of the three-dimensional structure on the base plate of this application.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Outer shell; 2. Main unit; 3. Brush head; 4. Button; 5. Circular plate; 6. Base plate; 7. Charging port; 8. Flip-up sealing assembly; 9. Fixed shell; 10. Movable plate; 11. Side tube; 12. Vertical hole; 13. Vertical tube; 14. Spring; 15. First sealing ring; 16. Elastic sealing ring; 17. Second sealing ring; 18. Sealing groove; 19. Support plate; 20. Leather pad. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0023] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and drawings of this application are intended to cover without excluding other terms. The words "a" or "an" do not exclude the presence of multiples. Unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple sets" means two or more (including two sets).
[0024] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do 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, they should not be construed as limitations on this application.
[0025] Furthermore, descriptions of directions used to explain the operation and construction of the components in this embodiment, such as height, are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.
[0026] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. In addition to referring to a physical connection, "connection" or "linkage" in circuit structures can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] To facilitate understanding of the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0028] like Figure 1-5 As shown, this application embodiment provides a waterproof component for an electric toothbrush, including a housing 1, a main unit 2 installed inside the housing 1, a brush head 3 extending from the top of the main unit 2 out of the housing 1, and a button 4 installed on the side wall of the housing 1.
[0029] In the technical solution of this embodiment, the main unit 2 can be started by the button 4, and the main unit 2 drives the brush head 3 to move. The brushing operation can be realized by the brush head 3, thus realizing the function of an electric toothbrush.
[0030] An annular plate 5 is fixedly connected to the bottom surface of the outer shell 1. A base plate 6 is provided at the center of the bottom surface of the annular plate 5. The outer diameter of the base plate 6 is larger than the inner diameter of the annular plate 5. A second sealing ring 17 is fixedly connected to the upper and lower side walls of the base plate 6. A sealing groove 18 matching the second sealing ring 17 is provided on the bottom surface of the annular plate 5.
[0031] In the technical solution of this embodiment, by inserting the second sealing ring 17 into the sealing groove 18, the sealing performance between the bottom plate 6 and the annular plate 5 can be effectively improved, thereby enhancing the waterproof effect.
[0032] Furthermore, a support plate 19 is fixedly connected to the bottom surface of the annular plate 5. The support plate 19 is annular and its outer diameter is the same as that of the annular plate 5. A leather pad 20 is fixedly connected to the bottom surface of the support plate 19. The leather pad 20 is annular and can effectively improve the stability of the electric toothbrush.
[0033] A charging port 7 is installed on one side of the base plate 6. A flip-close assembly 8 is provided on both sides of the base plate 6. The flip-close assembly 8 includes a fixed shell 9. Two fixed shells 9 are symmetrically fixedly connected to the top surface of the annular plate 5. A movable plate 10 is movably connected to the inner cavity of each fixed shell 9. The bottom surface of the movable plate 10 passes through the annular plate 5 and is movably connected to a side tube 11. The side tube 11 is fixedly connected to the base plate 6. A vertical hole 12 is opened in the center of the top surface of the movable plate 10. The vertical hole 12 is connected to the side tube 11. A vertical tube 13 is movably connected in the vertical hole 12. The top end of the vertical tube 13 passes through the top surface of the fixed shell 9 and is fixedly connected to the fixed shell 9. A spring 14 is sleeved on the vertical tube 13. One end of the spring 14 is fixedly connected to the top surface of the inner cavity of the fixed shell 9, and the other end of the spring 14 is fixedly connected to the top surface of the movable plate 10.
[0034] In the technical solution of this embodiment, during use, the base plate 6 can be pulled, which can drive the movable plate 10 to move within the fixed shell 9. The movable plate 10 can also drive the spring 14 to stretch. When the base plate 6 is a certain distance away from the annular plate 5, the base plate 6 can be released by rotating it around the side tube 11. Under the action of the spring 14, the base plate 6 can be pressed tightly against the bottom surface of the annular plate 5. At this time, if the charging port 7 is facing down, it is convenient to charge and use. If the charging port 7 is facing up, the charging port 7 can be sealed in the inner cavity of the outer shell 1, reducing the amount of water entering the charging port 7 and improving the waterproof effect of the electric toothbrush, resulting in a better performance.
[0035] Furthermore, the annular plate 5 is provided with through grooves at the fixed shell 9, and the first sealing ring 15 is fixedly connected in each through groove. The movable plate 10 is provided through the through groove, which can effectively improve the sealing between the movable plate 10 and the annular plate 5.
[0036] Furthermore, an elastic sealing ring 16 is fixedly connected to the inner cavity of the vertical tube 13 near the top. The outer diameter of the elastic sealing ring 16 is the same as the inner diameter of the vertical tube 13. One end of the charging wire is connected to the main unit 2, and the other end of the wire passes through the vertical tube 13, the vertical hole 12 and the side tube 11 in sequence, so that the wire is connected to the charging port 7. This enables the main unit 1 to be charged through the charging port 7, and reduces the amount of water entering the inner cavity of the outer shell 1, thus improving the waterproof effect.
[0037] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0038] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A waterproof component for use in electric toothbrushes, characterized in that, Includes a housing (1), inside which a main unit (2) is installed, the top of the main unit (2) extends out of the housing (1) and is equipped with a brush head (3), a button (4) is installed on the side wall of the housing (1), an annular plate (5) is fixedly connected to the bottom surface of the housing (1), a base plate (6) is provided at the center of the bottom surface of the annular plate (5), a charging port (7) is installed on one side of the base plate (6), and a flip-close assembly (8) is provided on both sides of the base plate (6); The flip-close assembly (8) includes a fixed shell (9). Two fixed shells (9) are symmetrically fixedly connected to the top surface of the annular plate (5). Movable plates (10) are movably connected to the inner cavity of each fixed shell (9). The bottom surface of the movable plate (10) passes through the annular plate (5) and is movably connected to a side tube (11). The side tube (11) is fixedly connected to the bottom plate (6). A vertical hole (12) is opened in the center of the top surface of the movable plate (10). The vertical hole (12) is connected to the side tube (11). A vertical tube (13) is movably connected inside the vertical hole (12). The top end of the vertical tube (13) passes through the top surface of the fixed shell (9) and is fixedly connected to the fixed shell (9). A spring (14) is sleeved on the vertical tube (13). One end of the spring (14) is fixedly connected to the top surface of the inner cavity of the fixed shell (9), and the other end of the spring (14) is fixedly connected to the top surface of the movable plate (10).
2. The waterproof assembly for use in an electric toothbrush according to claim 1, wherein The annular plate (5) is provided with a through groove at the fixed shell (9), and a first sealing ring (15) is fixedly connected in the through groove. The movable plate (10) is provided through the through groove.
3. The waterproof assembly for use in an electric toothbrush according to claim 1, wherein An elastic sealing ring (16) is fixedly connected to the inner cavity of the vertical tube (13) near the top end. The outer diameter of the elastic sealing ring (16) is the same as the inner diameter of the vertical tube (13).
4. The waterproof assembly for use in an electric toothbrush according to claim 1, wherein The outer diameter of the base plate (6) is larger than the inner diameter of the annular plate (5). The upper and lower side walls of the base plate (6) are fixedly connected with second sealing rings (17). The bottom surface of the annular plate (5) is provided with a sealing groove (18) that matches the second sealing ring (17).
5. The waterproof assembly for use in an electric toothbrush according to claim 1, wherein A support plate (19) is fixedly connected to the bottom surface of the annular plate (5). The support plate (19) is circular and its outer diameter is the same as that of the annular plate (5).
6. The waterproof assembly for use in an electric toothbrush according to claim 5, wherein A leather pad (20) is fixedly connected to the bottom surface of the support plate (19), and the leather pad (20) is arranged in a circular shape.