Oral care device

Abstract

The application discloses an oral care device, which comprises a base unit, the base unit comprising a main housing, a knob structure and a first seal, wherein the knob structure comprises a rotation sensing component and a rotation adjusting component, the rotation adjusting component has an internal cavity, the rotation sensing component has a first part and a second part which can rotate relative to each other, the first part is connected with the main housing, the second part is connected with the rotation adjusting component, and a gap channel is formed between the rotation adjusting component and the main housing to communicate the internal cavity with the external environment; the first seal is arranged in the gap channel to block the communication between the internal cavity and the external environment, and the main housing has an annular barrier which is arranged around the rotation sensing component and extends upward into the gap channel. The technical scheme provided by the application can realize the sealing effect between the knob structure and the main housing, improve the rotation resistance of the knob structure and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of oral hygiene technology, and in particular to an oral care device. Background Technology

[0002] In related technologies, water flossers use a knob to open and close the base station unit, and / or use the knob to adjust the gear to achieve different water flow impact effects. At the same time, in order to prevent external water vapor from damaging the electronic components inside the knob, an O-ring is usually set between the knob and the main housing to block water vapor.

[0003] However, during prolonged rotation, individual O-rings are prone to deformation and wear, leading to seal failure and affecting moisture barrier. Using multiple O-rings increases the resistance to relative rotation between the knob and the main housing, requiring users to apply greater force to turn the knob, thus impacting the user experience. Utility Model Content

[0004] The purpose of this application is to provide an oral care device that can achieve a sealing effect between the knob and the main housing while improving the rotational resistance of the knob and enhancing the user experience.

[0005] To achieve the above objectives, this application provides an oral care device, which includes at least a base station unit. The base station unit includes a main housing, a knob structure, and a first seal. The knob structure is configured to open and close the base station unit and / or adjust the fluid output pressure of the base station unit. The knob structure includes a rotation sensing component and a rotation adjustment component. The rotation adjustment component has an internal chamber for at least partially accommodating the rotation sensing component. The rotation sensing component has a first portion and a second portion that are rotatable relative to each other. The first portion is connected to the main housing, and the second portion is connected to the rotation adjustment component. A gap channel is formed between the rotation adjustment component and the main housing, communicating between the internal chamber and the external environment. The first seal is disposed within the gap channel to prevent communication between the internal chamber and the external environment. The main housing has an annular blocking component that surrounds the rotation sensing component and extends upward into the gap channel.

[0006] The technical solution provided in this application, by setting a first seal within the gap channel formed between the rotating adjustment component and the main housing, blocks the communication between the internal chamber and the external environment, reducing the possibility of moisture and / or liquid from the external environment entering the internal chamber through the gap channel and damaging the electronic components inside the internal chamber. Simultaneously, the main housing has an annular blocking component that surrounds the rotating sensing component and extends upward into the gap channel. This annular blocking component reduces the flow area of ​​the gap channel at its location. When moisture / liquid flows along the gap channel into the internal chamber, it is at least partially blocked by the annular blocking component, further reducing the possibility of moisture and / or liquid from the external environment entering the internal chamber through the gap channel and damaging the electronic components inside the internal chamber, thus improving the service life of the oral care device.

[0007] Based on the same inventive concept, this application also provides an oral care device, which includes at least a base station unit. The base station unit includes a main housing, a knob structure, and a first seal. The knob structure is configured to open and close the base station unit and / or adjust the fluid output pressure of the base station unit. The knob structure includes a rotation sensing component and a rotation adjusting component. The rotation adjusting component has a built-in chamber for at least partially accommodating the rotation sensing component. The rotation sensing component has a first portion and a second portion that are rotatable relative to each other. The first portion is connected to the main housing, and the second portion is connected to the rotation adjusting component. The first seal is located between the rotation adjusting component and the main housing. The first seal has a mounting ring portion and a sealing ring portion located inside the mounting ring portion. The mounting ring portion is disposed on the main housing. The outer wall surface of the mounting ring portion has at least two annular protrusions. The at least two annular protrusions are spaced apart along the direction of the mounting ring portion and contact the main housing. The sealing ring portion has at least two sealing lips, and the at least two sealing lips contact the rotation adjusting component.

[0008] Based on the same inventive concept, this application also provides a sealing member having a mounting ring portion and a sealing ring portion located inside the mounting ring portion. The bottom surface of the mounting ring portion is provided with an annular second groove. The outer wall surface of the mounting ring portion is provided with at least two annular protrusions, which protrude outwards. The sealing ring portion is located on the inner wall surface of the mounting ring portion and has at least two sealing lips that extend inwards. Alternatively, the inner wall surface of the mounting ring portion is provided with at least two annular protrusions, which protrude inwards. The sealing ring portion is located on the outer wall surface of the mounting ring portion and has at least two sealing lips that extend outwards. The annular protrusions are used to contact one of the rotating adjustment component and the main housing in the base station unit, and the sealing lips are used to contact the other of the rotating adjustment component and the main housing in the base station unit. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of an oral care device in one embodiment provided in this application; Figure 2 This is a half-sectional schematic diagram of a base station unit in one embodiment provided in this application; Figure 3 This is a partial cross-sectional schematic diagram of a base station unit in one embodiment provided in this application; Figure 4 yes Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the structure of the rotation sensing component in one embodiment provided in this application; Figure 6 This is a half-sectional schematic diagram of the first sealing element in one embodiment provided in this application; Figure 7 This is an exploded view of a portion of the base station unit structure in one embodiment provided in this application; Figure 8 This is an exploded view of another part of the base station unit structure in one embodiment provided in this application.

[0011] Explanation of reference numerals in the attached figures: 1000, Base station unit; 2000, Oral cleaner; 100. Main housing; 110. Annular blocking component; 112. Annular support component; 120. Box body; 130. Cover body; 140. Support shaft; 200. Knob structure; 210. Rotation sensing component; 211. First part; 212. Second part; 220. Rotation adjustment component; 221. Built-in chamber; 2211. First chamber; 2212. Second chamber; 222. First groove; 223. Bottom shell; 224. Outer shell; 230. Display component; 300, First seal; 310, Mounting ring; 311, Annular protrusion; 312, Second groove; 320, Sealing ring; 321, Sealing lip; 400. Second seal; 500, pressure plate; 600. Third sealing element. Detailed Implementation

[0012] In the relevant technical field, oral hygiene devices typically include a base station unit and an oral cleaner. The base station unit provides water flow to the oral cleaner to achieve oral cleaning through water jet impact. The main housing of the base station unit usually has a rotary knob for adjustment, allowing the base station unit to be turned on and off, and / or different settings to achieve diverse water jet impact effects.

[0013] To protect the internal electronic components of the knob (such as the control board and display components) and the electronic components inside the base station unit connected to the knob from moisture, an O-ring is usually installed between the knob and the main housing to form a waterproof barrier. However, O-rings may deform and wear during prolonged use, potentially reducing their sealing performance and thus affecting their ability to block moisture. Adding multiple O-rings to enhance the seal, while theoretically improving sealing, also increases the friction between the knob and the main housing during rotation. This requires the user to apply more force when rotating the knob, reducing ease of use and negatively impacting the user experience.

[0014] To address this issue, the inventors of this application have incorporated an annular blocking element on the main housing, extending upwards into the knob. This creates an upwardly arched area in the gap between the knob and the main housing. When moisture flows into the knob through this gap, it impacts and is blocked by the annular blocking element, reducing further moisture penetration and improving the moisture barrier effect. Simultaneously, this does not increase the rotational resistance between the knob and the main housing support, facilitating user adjustment and enhancing the user experience. Furthermore, this application replaces the existing O-ring seal with a seal ring featuring multiple sealing lips, providing a multi-layered seal and further improving the sealing effect. The seal with multiple sealing lips also reduces the contact force with the knob, further decreasing the rotational resistance between the knob and the main housing support.

[0015] Furthermore, the knobs used only have adjustment functions and lack the ability to display the current adjustment status in real time. This design limitation means that users cannot directly see the specific position of the knob or the selected setting, making it difficult to intuitively understand the device's operating mode. This lack of transparency may cause inconvenience for users, as they need to rely on memory or try different settings to achieve the desired water flow impact, which undoubtedly affects the intuitiveness and satisfaction of using the product.

[0016] To this end, this application further integrates a display function, such as a digital display screen or indicator light, into the knob to intuitively show the user the current adjustment status. This improvement allows users to clearly see the selected gear or setting, thus enabling more convenient and accurate control of the water flosser's operation, enhancing user-product interaction, and improving user satisfaction.

[0017] 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 some embodiments of this application, but not all embodiments.

[0018] This application provides an oral care device, which may include a base station unit 1000. The base station unit 1000 can be used as a water supply module to provide rinsing liquid to an oral cleaner 2000. The base station unit 1000 may also be equipped with an adjustment structure to adjust the water flow impact effect. Alternatively, the base station unit 1000 can also be used as a charging module to charge the oral cleaner 2000. The oral cleaner 2000 interacts with the user's mouth, providing water flow impact and / or bristle movement to clean the user's mouth.

[0019] Please see also Figures 1 to 5 In one feasible implementation, the base station unit 1000 may include a main housing 100, which serves as the main body of the base station unit 1000. The main housing 100 can provide support and / or protection for other components of the base station unit 1000 except for the main housing 100. The main housing 100 can also provide support or support for the oral cleaner 2000.

[0020] In this embodiment, the base station unit 1000 may further include a knob structure 200. The knob structure 200 serves as an adjustment structure for opening and closing the liquid supply and / or adjusting the water flow impact effect. Specifically, the knob structure 200 may include a rotation sensing component 210 and a rotation adjustment component 220. The rotation adjustment component 220 has a built-in chamber 221 for at least partially accommodating the rotation sensing component 210. That is, the rotation sensing component 210 is built into the built-in chamber 221 of the rotation adjustment component 220, preventing the rotation sensing component 210 from being directly exposed and effectively reducing the possibility of damage to the rotation sensing component 210. The rotation sensing component 210 has a first part 211 and a second part 212 that are rotatable relative to each other. The first part 211 is connected to the main housing 100 and can be fixed relative to the main housing 100. The second part 212 is connected to the rotary adjustment component 220. When the rotary adjustment component 220 rotates, it drives the second part 212 to rotate relative to the first part 211. Thus, the rotary sensing component 210 can detect the rotation angle of the rotary adjustment component 220 based on the relative rotation angle of the second part 212 relative to the first part 211, thereby controlling the liquid supply opening and closing and / or the water flow impact effect.

[0021] In practical applications, the base station unit 1000 may further include a liquid storage unit, a power assembly for transporting liquid from the liquid storage unit to the oral cleaner 2000, and a control board for controlling the power assembly. The rotation sensing component 210 and the power assembly are electrically connected to the control board. The power assembly provides power for drawing liquid from the liquid storage unit and discharging it to the oral cleaner 2000. The rotation sensing component 210 detects rotation information (e.g., angle, speed) from the user's operation of the rotation adjustment component 220 and converts this information into an electrical signal, which is then fed back to the control board. The control board then controls the start / stop of the power assembly and / or the drainage volume based on the electrical signal. The rotation sensing component 210 may be a rotary encoder, and the power assembly may be a water pump.

[0022] Since the rotation adjustment component 220 is connected to the main housing 100 via the rotation sensing component 210, there is an assembly gap between the rotation adjustment component 220 and the main housing 100. Correspondingly, a gap channel is formed between the rotation adjustment component 220 and the main housing 100, connecting the internal chamber 221 to the external environment. This means that moisture and / or liquids from the external environment can enter the internal chamber 221 through the gap channel, potentially damaging the electronic components (such as the rotation sensing component 210, display components, etc.) located within the internal chamber 221. Therefore, the base station unit 1000 may further include a first sealing element 300 disposed within the gap channel, thereby preventing communication between the internal chamber 221 and the external environment and reducing the possibility of moisture and / or liquids from the external environment entering the internal chamber 221 through the gap channel and damaging the electronic components within the internal chamber 221. Meanwhile, the main housing 100 has an annular blocking member 110, which surrounds the rotation sensing component 210 and extends upward into the gap channel. In this way, the annular blocking member 110 can reduce the flow area of ​​the gap channel at the annular blocking member 110. When water vapor / liquid flows along the gap channel into the built-in chamber 221, the water vapor and / or liquid is at least partially blocked by the annular blocking member 110, thereby further reducing the possibility that water vapor and / or liquid in the external environment may enter the built-in chamber 221 through the gap channel and damage the electronic components in the built-in chamber 221, and improving the service life of the oral care device.

[0023] In practical applications, the knob structure 200 can be installed on the top of the main housing 100, with the axes of the knob structure 200 and the annular stop 110 perpendicular to the horizontal plane, thus facilitating user adjustment. The knob structure 200 can also be installed on the side of the main housing 100, but the axes of the knob structure 200 and the annular stop 110 should also be approximately perpendicular to the horizontal plane to avoid affecting the blocking effect of the annular stop 110 on water vapor and / or liquid.

[0024] The aforementioned control board can be installed within the cavity formed by the main housing 100. Correspondingly, the main housing 100 can be provided with a clearance hole connecting the internal cavity 221 and the cavity formed by the main housing 100, allowing the wiring harness connecting the control board to the electronic components within the internal cavity 221 to pass through the clearance hole into the main housing 100. Thus, it can be understood that the aforementioned first seal 300 and annular barrier 110 can also prevent moisture from the external environment from entering the main housing 100, thereby reducing the risk of damage to the electronic components within the main housing 100.

[0025] like Figure 3 and Figure 4As shown, in one feasible embodiment, the bottom surface of the rotary adjustment component 220 is provided with a first groove 222 that is annular and recessed inward, and the annular blocking member 110 extends into the first groove 222. Thus, the annular blocking member 110 not only reduces the flow area of ​​the gap channel at the location of the annular blocking member 110, but also changes the path of the gap channel, that is, changes the flow path of water vapor and / or liquid from the external environment to the internal chamber 221 (e.g., Figure 4 (as indicated by the arrow direction), thereby further increasing the probability of water vapor colliding with the annular barrier 110, improving the blocking effect on water vapor, and further increasing the height of the annular barrier 110, increasing the difficulty for liquid to enter the internal chamber 221, and improving the blocking effect on liquid.

[0026] Along the direction of the gap channel, such as Figure 3 As shown, the first seal 300 can be located between the annular barrier 110 and the internal chamber 221. That is, when water vapor and / or liquid from the external environment move into the internal chamber 221 through the gap channel, the water vapor and / or liquid will first pass through the annular barrier 110 and then through the first seal 300.

[0027] Of course, the annular barrier 110 can also be located between the first seal 300 and the inner chamber 221 along the gap channel direction. That is, when water vapor and / or liquid in the external environment moves into the inner chamber 221 through the gap channel, the water vapor and / or liquid will first pass through the first seal 300 and then through the annular barrier 110.

[0028] However, considering that when water vapor and / or liquid in the external environment move sequentially through the first seal 300 into the inner chamber 221, when water vapor and / or liquid pass through the first seal 300, the water vapor and / or liquid will be sealed between the first seal 300 and the inner chamber 221, thus causing evaporation into the inner chamber 221. This makes the blocking effect of the annular barrier 110 negligible. Therefore, this application preferably uses the first seal 300 located between the annular barrier 110 and the inner chamber 221.

[0029] Regarding the specific structure of the first seal 300 mentioned above, this application provides three feasible embodiments for reference.

[0030] In Example 1, the first sealing element 300 can be an O-ring. In practical applications, the main housing 100 or the rotary adjustment component 220 forms an annular sealing ring receiving groove. The O-ring is pre-installed in the sealing ring receiving groove, and when the rotary adjustment component 220 is connected to the main housing 100, the O-ring abuts between the rotary adjustment component 220 and the main housing 100.

[0031] In embodiment 2, the first sealing element 300 can be a Y-ring or a K-ring. The Y-ring or K-ring is installed on the main housing 100, and the two sealing lips of the Y-ring or K-ring abut against the rotary adjustment component 220.

[0032] Example 3, as follows Figure 3 and Figure 6 As shown, the first seal 300 has a mounting ring portion 310 and a sealing ring portion 320. The sealing ring portion 320 has at least two sealing lips 321, which contact the rotation adjustment member 220 or the main housing 100, and the contact positions of the at least two sealing lips 321 with the rotation adjustment member 220 or the main housing 100 are spaced apart along the axis of the first seal 300.

[0033] When at least two sealing lips 321 are in contact with the main housing 100, the mounting ring 310 can be disposed on the rotary adjustment component 220. The inner wall surface of the mounting ring 310 has at least two annular protrusions 311, which are spaced apart along the axial direction of the mounting ring 310 and contact the rotary adjustment component 220, thereby forming a multiple seal between the first sealing member 300 and the rotary adjustment component 220. The sealing ring 320 is located on the outer wall surface of the mounting ring 310, so that at least two sealing lips 321 can form a multiple seal between the first sealing member 300 and the main housing 100. Thus, a single first sealing member 300 can achieve multi-layer sealing of the gap channel, improving the sealing effect.

[0034] When at least two sealing lips 321 are in contact with the rotary adjustment component 220, the mounting ring portion 310 can be disposed on the main housing 100. The outer wall surface of the mounting ring portion 310 is provided with at least two annular protrusions 311, which are spaced apart along the axial direction of the mounting ring portion 310 and in contact with the main housing 100, thereby forming a multiple seal for the gap between the first sealing member 300 and the main housing 100. The sealing ring portion 320 is located on the inner wall surface of the mounting ring portion 310, so that at least two sealing lips 321 can form a multiple seal for the gap between the first sealing member 300 and the rotary adjustment component 220. In this way, a single first sealing member 300 can achieve a multi-layer seal for the gap channel, improving the sealing effect.

[0035] Furthermore, it is worth mentioning that, compared to the O-ring solution, in this embodiment, the first sealing member 300 contacts and seals with the rotary adjustment member 220 through at least two sealing lips 321. The contact area between the sealing lips 321 and the rotary adjustment member 220 is small, and no large abutting force is required, thereby reducing the friction between the first sealing member 300 and the rotary adjustment member 220, reducing the rotational resistance of the rotary adjustment member 220 relative to the main housing 100, making it easier for the user to operate the rotary adjustment member 220 to rotate, and improving the user experience.

[0036] In practical applications, there can be two of each of the annular protrusions 311 and the sealing lip 321, or any one of two, three, or four. When there are two of each of the annular protrusions 311 and the sealing lip 321, and they are used in conjunction with the aforementioned annular blocking member 110, a good waterproof effect is achieved.

[0037] like Figure 3 and Figure 6 As shown, in one feasible embodiment, the bottom surface of the mounting ring portion 310 is provided with a second annular groove 312. Correspondingly, the main housing 100 has an upwardly extending annular support member 112, and the mounting ring portion 310 is disposed on the main housing 100 by inserting the annular support member 112 into the second groove 312. In this way, the connection method between the first sealing member 300 and the main housing 100 can be simplified, and the annular support member 112 can also serve as a support structure for the first sealing member 300, maintaining the shape of the first sealing member 300 during the sealing process, and the annular support member 112 can also serve as a limiting structure for the first sealing member 300, limiting the radial degree of freedom of the first sealing member 300, preventing the annular support member 112 from shifting radially, thereby ensuring the sealing effect between the annular protrusion 311 and the main housing 100, and the sealing effect between the sealing lip 321 and the rotation adjustment member 220.

[0038] Furthermore, in order to restrict the degree of freedom of the first seal 300 in the axial direction, such as Figure 3 As shown, in one feasible embodiment, the base station unit 1000 further includes an annular pressure plate 500, which is disposed on the main housing 100 and located between the mounting ring 310 and the rotation adjustment component 220, thereby restricting the degree of freedom of the first seal 300 in the axial direction through the cooperation of the pressure plate 500 and the main housing 100.

[0039] In practical applications, the outer diameter of the pressure plate 500 is approximately the same as the inner diameter of the annular stop 110. The pressure plate 500 is installed within the area formed by the annular stop 110, thereby restricting the radial degree of freedom of the pressure plate 500 by the annular stop 110. The pressure plate 500 can be placed solely on the main housing 100, or it can be connected to the main housing 100 by interference fit, bonding, or threaded connection.

[0040] like Figure 3 and Figure 7As shown, in one feasible implementation, the knob structure 200 can also integrate a display function to display the setting and mode adjusted by the rotary adjustment component 220 in real time. Specifically, the knob structure 200 can also include a display component 230, which can be located within the built-in chamber 221. In this way, the user can clearly see the selected setting or mode, thus controlling the working status of the water flosser more conveniently and accurately, enhancing the interaction between the user and the product, and improving user satisfaction. Furthermore, since the display component 230 can be located within the built-in chamber 221, the sealing effect of the first seal 300 and the annular barrier 110 can effectively reduce the possibility of external moisture and / or liquids damaging the display component 230.

[0041] In practical applications, the display component 230 can be a liquid crystal display device consisting of a light-shielding film, a light-shielding cover, and a display PCB board, ensuring clear image display and stable operation of the device. The display component 230 can be electrically connected to the control board. When the control board receives an electrical signal from the rotation adjustment component 220, the control board transmits display information to the display component 230 based on the electrical signal, which is then displayed by the display component 230.

[0042] The display component 230 can rotate together with the rotation adjustment component 220. In practical applications, the display component 230 can be connected to the rotation adjustment component 220 and / or the second part 212 of the rotation sensing component 210, so as to rotate with the rotation adjustment component 220.

[0043] The aforementioned display component 230 can also be stationary relative to the rotation adjustment component 220. In practical applications, the display component 230 can be connected to the first part 211 of the rotation sensing component 210, or the display component 230 can be connected to a structure of the main housing 100 extending into the built-in cavity 221.

[0044] Considering that when the display component 230 rotates together with the rotation adjustment component 220, the wiring harness connecting the display component 230 and the control board will also rotate, which is prone to fatigue damage during long-term rotation, and the rotation of the display component 230 will cause its display orientation to change, affecting the user's viewing experience, this application preferably adopts a configuration where the display component 230 is stationary relative to the rotation adjustment component 220, and this will be described accordingly thereafter.

[0045] like Figure 3 and Figure 7As shown, in one feasible embodiment, the rotation adjustment component 220 may include a bottom shell 223 and a outer shell 224, wherein the bottom shell 223 and the outer shell 224 are connected and surround to form a first chamber 2211, the first chamber 2211 being at least a part of the built-in chamber 221. The display component 230 is installed in the first chamber 2211, and a second seal 400 is provided at the connection between the bottom shell 223 and the outer shell 224 to prevent external moisture and / or liquid from entering the built-in chamber 221 through the connection between the bottom shell 223 and the outer shell 224, thus ensuring a sealing effect.

[0046] In practical applications, the bottom shell 223 can be at least partially inserted into the outer shell 224, or the outer shell 224 can be at least partially inserted into the bottom shell 223, or the bottom shell 223 and the outer shell 224 can abut against each other.

[0047] Taking the bottom shell 223 being at least partially inserted into the outer shell 224 as an example, the outer wall surface of the bottom shell 223 may be provided with a sealing ring groove. The second sealing member 400 may be pre-installed in the sealing ring groove and then inserted into the outer shell 224 along with the bottom shell 223, thereby abutting between the outer wall surface of the bottom shell 223 and the inner wall surface of the outer shell 224. Correspondingly, the sealing lip 321 of the first sealing member 300 contacts the bottom shell 223, and the first groove 222 is formed on the bottom surface of the bottom shell 223.

[0048] Meanwhile, in order to facilitate the connection between the outer shell 224 and the bottom shell 223, the inner wall surface of the outer shell 224 may be provided with a slot, and the outer wall surface of the bottom shell 223 may be provided with a locking block that cooperates with the slot. In this way, when the bottom shell 223 is inserted into the outer shell 224, the locking block can be engaged in the slot, thereby connecting the bottom shell 223 and the outer shell 224.

[0049] In one feasible implementation, the bottom shell 223 may be annular, and the inner wall of the bottom shell 223 surrounds to form a second chamber 2212. The rotation sensing component 210 is at least partially located in the second chamber 2212, and the first chamber 2211 and the second chamber 2212 are connected to form an internal chamber 221.

[0050] In practical applications, the first part 211 and the second part 212 of the rotation sensing component 210 can both be annular. The second part 212 is at least partially fitted onto the outer wall of the first part 211. The first part 211 has a clearance space around it so that the wiring harness on the display component 230 located in the first chamber 2211 can pass through the clearance space and connect to the control board. A snap-fit ​​structure with a slot and a snap-fit ​​block can be provided between the outer wall of the second part 212 and the inner wall of the bottom shell 223, so that they can be connected to each other through the snap-fit ​​structure.

[0051] The aforementioned housing 224 should be made of a light-transmitting material, such as a transparent or semi-transparent material, so that the light emitted by the display component 230 can pass through the housing 224, or in other words, the user can view the display content of the display component 230 through the housing 224.

[0052] Regarding the specific structure of the main housing 100, in one feasible embodiment, the main housing 100 can be integrally injection molded.

[0053] like Figure 8 As shown, in another optional embodiment, the main housing 100 can be designed as a split unit. Specifically, the main housing 100 may include a box body 120 and a cover 130, which are formed separately and then connected to each other, with the cover 130 covering the opening of the box body 120. Correspondingly, the aforementioned gap channel is formed by the cover 130 and the rotation adjustment component 220, an annular blocking member 110 is provided on the cover 130, a first part 211 is connected to the cover 130, and a first sealing member 300 and a pressure plate 500 are respectively installed on the cover 130.

[0054] In practical applications, the annular stopper 110 can be integrally formed with the cover 130, thereby reducing manufacturing costs. Alternatively, the annular stopper 110 can be designed separately from the cover 130 and then connected to it. A support shaft 140 can be screwed onto the cover 130. The support shaft 140 extends into the cavity formed by the first part 211 and connects to the first part 211; that is, the first part 211 is connected to the main housing 100 via the support shaft 140. The first part 211 can be snap-fitted, interference-fitted, or glued to the support shaft 140.

[0055] Furthermore, a third sealing element 600 is provided at the connection between the housing 120 and the cover 130. The third sealing element 600 is used to seal the connection gap between the housing 120 and the cover 130 to prevent external moisture and / or liquid from entering the cavity formed by the main housing 100 through the connection between the housing 120 and the cover 130, thereby causing damage to electronic components.

[0056] like Figure 1 As shown, in one feasible embodiment, the oral care device may further include an oral cleaner 2000, wherein a base station unit 1000 is connected to the oral cleaner 2000 via a delivery pipe, and the base station unit 1000 is able to deliver liquid to the oral cleaner 2000 via the delivery pipe, so that the liquid is sprayed out through the cleaning head of the oral cleaner 2000. The oral cleaner 2000 is one of a water flosser / oral irrigator with a handle.

[0057] When the oral irrigator 2000 is a handle for a combined brushing and rinsing device, the cleaning head can be a brush head with bristles, a nozzle, or a brush head with both bristles and a nozzle. The main body of the oral irrigator 2000 may include a second power assembly, which includes a drive shaft receiving the cleaning head and a motor body for rotating the drive shaft and / or applying vibrational motion to the drive shaft. The drive shaft may be hollow to provide a fluid passage for fluid to enter the cleaning head and perform the rinsing operation.

[0058] In practical applications, the base station unit 1000 may also have a mounting position. The oral cleaner 2000 can be detachably connected to the base station unit 1000 by means of magnetic adsorption, hanging or fastening at the mounting position, so that when the oral cleaner 2000 is not in use, it can be stored and organized together with the base station unit 1000.

[0059] Based on the same inventive concept, this application also provides an oral care device, which includes at least a base station unit 1000. The base station unit 1000 includes a main housing 100, a knob structure 200, and a first sealing member 300. The knob structure 200 is configured to open and close the base station unit 1000 and / or adjust the fluid output pressure of the base station unit 1000. The knob structure 200 includes a rotation sensing component 210 and a rotation adjustment component 220. The rotation adjustment component 220 has a built-in chamber 221 for at least partially accommodating the rotation sensing component 210. The rotation sensing component 210 has a first part 211 and a second part 212 that are rotatable relative to each other. The first part 211 is connected to the main housing 100, and the second part 212 is connected to the rotation adjustment component 220. The first sealing element 300 is located between the rotary adjustment component 220 and the main housing 100. The first sealing element 300 has a mounting ring portion 310 and a sealing ring portion 320 connected to the mounting ring portion 310. The mounting ring portion 310 is located on the main housing 100, and the sealing ring portion 320 is in contact with the rotary adjustment component 220. Alternatively, the mounting ring portion 310 is located on the rotary adjustment component 220, and the sealing ring portion 320 is in contact with the main housing 100.

[0060] The specific structures of the main housing 100, the knob structure 200, and the first sealing element 300 can be referred to the detailed descriptions in the above embodiments, and will not be repeated here.

[0061] Based on the same inventive concept, this application also provides a sealing member having a mounting ring portion 310 and a sealing ring portion 320. The bottom surface of the mounting ring portion 310 is provided with a second annular groove 312. The outer wall surface of the mounting ring portion 310 is provided with at least two annular protrusions 311, which protrude outwards. The sealing ring portion 320 is located on the inner wall surface of the mounting ring portion 310 and has at least two sealing lips 321, which extend inwards. Alternatively, the inner wall surface of the mounting ring portion 310 is provided with at least two annular protrusions 311, which protrude inwards. The sealing ring portion 320 is located on the outer wall surface of the mounting ring portion 310 and has at least two sealing lips 321, which extend outwards.

[0062] The specific structure of the mounting ring 310 and the sealing ring 320 can be found in the detailed description in the above embodiments, and will not be repeated here.

[0063] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0064] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate 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 this disclosure. 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.

[0067] Finally, it should be noted that the above 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An oral care device characterized by, The oral care device includes at least a base station unit (1000), which includes a main housing (100), a knob structure (200), and a first sealing element (300). The knob structure (200) is configured to open and close the base station unit (1000) and / or adjust the fluid output pressure of the base station unit (1000). The knob structure (200) includes a rotation sensing component (210) and a rotation adjustment component (220). The rotation adjustment component (220) has an internal chamber (221) for at least partially accommodating the rotation sensing component (210). The rotation sensing component (210) has a first portion (211) and a second portion (212) that are rotatable relative to each other. The first portion (211) is connected to the main housing (100), and the second portion (212) is connected to the rotation adjustment component (220). A gap channel is formed between the rotation adjustment component (220) and the main housing (100) to communicate between the internal chamber (221) and the external environment. The first sealing element (300) is disposed in the gap channel to prevent the built-in chamber (221) from communicating with the external environment. The main housing (100) has an annular blocking element (110), and the annular blocking element (110) is disposed around the rotation sensing component (210) and extends upward into the gap channel.

2. The oral treatment device of claim 1, wherein, The bottom surface of the rotary adjustment component (220) is provided with a first groove (222) in the shape of an annular shape, and the annular blocking component (110) extends into the first groove (222).

3. The oral care device of claim 1 or 2, wherein, Along the gap channel direction, the first seal (300) is located between the annular barrier (110) and the built-in chamber (221).

4. The oral care device of claim 3, wherein, The first seal (300) has a mounting ring portion (310) and a sealing ring portion (320), wherein, The sealing ring portion (320) has at least two sealing lips (321), at least two of the sealing lips (321) contact the rotary adjustment component (220) or the main housing (100), and the contact positions of at least two of the sealing lips (321) with the rotary adjustment component (220) or the main housing (100) are spaced apart along the axis of the first seal (300).

5. The oral care device of claim 4, wherein, When the at least two sealing lips (321) are in contact with the rotary adjustment member (220), wherein the sealing ring portion (320) is located on the inner wall surface of the mounting ring portion (310); The mounting ring (310) is provided on the main housing (100). The outer wall surface of the mounting ring (310) is provided with at least two annular protrusions (311). The at least two annular protrusions (311) are spaced apart along the axis of the first seal (300) and contact the main housing (100).

6. The oral care device of claim 5, wherein, The bottom surface of the mounting ring (310) is provided with a second annular groove (312). The main housing (100) has an upwardly extending annular support (112), and the mounting ring (310) is provided on the main housing (100) by means of being inserted into the annular support (112) through the second groove (312).

7. The oral care device according to claim 6, characterized in that, The base station unit (1000) also includes an annular pressure plate (500), which is disposed on the main housing (100) and located between the mounting ring (310) and the rotation adjustment component (220).

8. The oral care device of claim 1, wherein, The knob structure (200) also includes a display component (230); The display component (230) is located within the built-in chamber (221) and is connected to the first part (211).

9. The oral care device of claim 8, wherein, The rotary adjustment component (220) includes a bottom shell (223) and an outer shell (224), wherein, The bottom shell (223) is connected to the outer shell (224), and the bottom shell (223) and the outer shell (224) surround to form a first chamber (2211). The display component (230) is installed in the first chamber (2211), and a second sealing element (400) is provided at the connection between the bottom shell (223) and the outer shell (224).

10. The oral care device of claim 9, wherein, The bottom shell (223) is annular, and the inner wall of the bottom shell (223) surrounds to form a second chamber (2212). The rotation sensing component (210) is at least partially located in the second chamber (2212). The first chamber (2211) and the second chamber (2212) are connected to form the built-in chamber (221).

11. The oral care device of claim 9, wherein, The housing (224) is made of a light-transmitting material so that the display content of the display component (230) can be viewed through the housing (224).

12. The oral care device of claim 1, wherein, The main housing (100) includes a box (120) and a cover (130), wherein, The box body (120) and the cover body (130) are connected, and the cover body (130) covers the opening of the box body (120). A third sealing element (600) is provided at the connection between the box body (120) and the cover body (130). The gap channel is formed by the cover (130) and the rotation adjustment component (220). The annular blocking component (110) is provided on the cover (130). The cover (130) is connected to a support shaft (140). The first part (211) is connected to the main housing (100) through the support shaft (140).

13. The oral care device of claim 1, wherein, The oral care equipment also includes an oral cleaner (2000), wherein, The base station unit (1000) is connected to the oral cleaner (2000) through a delivery pipeline. The base station unit (1000) can deliver liquid to the oral cleaner (2000) through the delivery pipeline so that the liquid is sprayed out through the cleaning head of the oral cleaner (2000).

14. An oral care device characterized by, The oral care device includes at least a base station unit (1000), which includes a main housing (100), a knob structure (200), and a first sealing element (300). The knob structure (200) is configured to open and close the base station unit (1000) and / or adjust the fluid output pressure of the base station unit (1000). The knob structure (200) includes a rotation sensing component (210) and a rotation adjustment component (220). The rotation adjustment component (220) has an internal chamber (221) for at least partially accommodating the rotation sensing component (210). The rotation sensing component (210) has a first portion (211) and a second portion (212) that are rotatable relative to each other. The first portion (211) is connected to the main housing (100), and the second portion (212) is connected to the rotation adjustment component (220). The first seal (300) is located between the rotary adjustment component (220) and the main housing (100). The first seal (300) has a mounting ring portion (310) and a sealing ring portion (320) connected to the mounting ring portion (310). The mounting ring portion (310) is located on the main housing (100), and the sealing ring portion (320) is in contact with the rotary adjustment component (220). Alternatively, the mounting ring portion (310) is located on the rotary adjustment component (220), and the sealing ring portion (320) is in contact with the main housing (100).

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