Waterpik

By introducing sterilization and drying devices into the water flosser, the problem of bacteria growth in the water tank is solved, achieving rapid drying and sterilization, thus improving the user experience.

CN114587666BActive Publication Date: 2026-05-12SHENZHEN RISUN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN RISUN TECHNOLOGY CO LTD
Filing Date
2022-03-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional water flossers leave residual cleaning solution in the tank after use, which can easily breed bacteria, leading to mold and odor, and affecting the user experience.

Method used

Design a water flosser with a sterilization device and a drying device. The water tank is dried and sterilized by a sterilization and light-emitting component and a drying power component, thereby reducing bacterial growth.

Benefits of technology

It effectively reduces bacterial growth in the water tank, improves the user experience, and prevents mold and odor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN114587666B_ABST
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Abstract

The application discloses a water pick, comprising: a head assembly and a water tank assembly; the head assembly comprises a casing, a sterilization device and a air-drying device; the lower end of the casing is connected with the water tank assembly, the upper end of the casing is provided with a liquid injection opening, and a liquid injection channel is formed in the casing and communicates with the water tank assembly; the air-drying device comprises an air-drying power component and an air-drying blade; the air-drying power component is installed in the casing, and the front end of an air-drying driving part of the air-drying power component penetrates through the lower end of the casing to drive the air-drying blade installed at the front end of the air-drying driving part; the water tank assembly comprises a water tank casing, the lower side of the water tank casing is provided with a water tank door, and the water tank door is detachably connected with a water tank plug; the water tank door, the water tank assembly, the liquid injection channel and the liquid injection opening. The water pick is provided with the sterilization device and the air-drying device, sterilizes the water tank while accelerating the drying of the water tank, reduces the breeding of bacteria in the water tank and improves the use experience.
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Description

Technical Field

[0001] This application relates to the field of oral care appliances, and more particularly to an air-drying oral irrigator. Background Technology

[0002] After traditional water flossers are used, residual cleaning solution remains in the water tank. If left unattended, the tank is in a humid environment where bacteria can easily grow. In this case, the water flosser will become moldy and smelly, seriously affecting the user experience. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this application provides a water flosser, which is equipped with a sterilization device and a drying device, which sterilizes the water tank while accelerating its drying, reducing the growth of bacteria in the water tank and improving the user experience.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows:

[0005] A dental flosser is proposed, comprising: a head assembly and a water tank assembly; the head assembly includes a housing, a sterilization device, and a drying device; the lower end of the housing is connected to the water tank assembly, and the upper end of the housing has a liquid injection opening, forming a liquid injection channel inside the housing that communicates with the water tank assembly; the drying device includes a drying power component and drying blades, the drying power component is installed inside the housing, and the front end of the drying drive part of the drying power component extends out of the lower end of the housing to drive the drying blades installed at the front end of the drying drive part; the water tank assembly includes a water tank shell. A water tank door is provided on the lower side of the water tank shell, and a water tank plug is detachably connected to the water tank door; the air drying device is used to drive airflow, which flows through the water tank door, water tank assembly, liquid injection channel and liquid injection opening; the sterilization device includes a sterilization luminescent component located at the lower end of the casing; a sterilization first accommodating part is provided at the lower end of the casing, the sterilization luminescent component is disposed in the sterilization first accommodating part, and a sterilization light-transmitting component is provided at the opening of the sterilization first accommodating part, which allows the light emitted by the sterilization luminescent component to pass through and seals the opening of the sterilization accommodating part.

[0006] Preferably, a first recess is formed at the lower end of the housing, and an injection outlet communicating with the injection channel is provided in the first recess. A second recess is also provided adjacent to the first recess, the depth of the second recess is less than that of the first recess and the two are communicating. The drying blade is disposed in the second recess.

[0007] Preferably, the inner side of the housing is provided with a drying power bracket, and the drying power bracket is equipped with a drying motor as the drying power component; the bottom of the housing is provided with a drying shaft hole that connects to the second recess, the output shaft of the drying motor passes through the drying shaft hole, and the output shaft of the drying motor rotates and seals with the drying shaft hole.

[0008] Preferably, the air-drying power bracket is cylindrical; the air-drying motor is sealed inside the air-drying power bracket with waterproof adhesive, or the air-drying power bracket is provided with a shielding component to seal the air-drying motor inside the air-drying power bracket.

[0009] Preferably, the upper end of the housing forms an opening on the head shell, and the opening on the head shell is equipped with an upper cover. The upper cover on the head shell has the liquid injection opening, which extends inward toward the inside of the housing to form a liquid injection pipe. The bottom of the housing has a liquid injection pipe connection, which communicates with the liquid injection outlet. The liquid injection pipe is sealed and inserted into the liquid injection pipe connection, forming part of the liquid injection channel.

[0010] Preferably, a second sterilization accommodating portion is provided on the outer periphery of the first sterilization accommodating portion, and the sterilization light-transmitting component is snapped into the second sterilization accommodating portion.

[0011] Preferably, the bottom of the second sterilization accommodating part is provided with a third sterilization accommodating part, and a sterilization sealing component is disposed in the third sterilization accommodating part. The sterilization sealing component is partially exposed in the third sterilization accommodating part and elastically abuts against the sterilization light-transmitting component.

[0012] Preferably, the lower end of the housing is provided with a sterilization protrusion, the first sterilization accommodating part is opened in the sterilization protrusion, and a sterilization support is sleeved on the outer periphery of the sterilization protrusion. The sterilization support is used to abut against the sterilization light-transmitting component to prevent the sterilization light-transmitting component from falling off.

[0013] Preferably, the sterilization support has a light-transmitting part of the sterilization support body, and one end of the sterilization support facing the water tank assembly has a sterilization light-guiding chamfer on the outer periphery of the light-transmitting part of the sterilization support body; the water tank assembly includes a water tank shell, the water tank shell is sleeved on the machine housing, and the machine housing can be inserted and housed in the water tank shell.

[0014] Preferably, the water tank shell is transparent, and an operation button is provided on the front side of the shell. The portion of the light-transmitting part of the sterilization frame facing the front side of the shell is provided with a second light-guiding chamfer, so that the area of ​​the sterilization and light-emitting component illuminating the front side of the water tank shell is smaller than the other sides of the water tank shell.

[0015] The technical solution provided in this application may include the following beneficial effects: A dental flosser is proposed, comprising: a head assembly and a water tank assembly; the head assembly includes a housing, a sterilization device, and a drying device; the lower end of the housing is connected to the water tank assembly, and the upper end of the housing is provided with a liquid injection opening, forming a liquid injection channel communicating with the water tank assembly within the housing; the drying device includes a drying power component and drying blades, the drying power component is installed inside the housing, and the front end of the drying drive section of the drying power component extends out of the lower end of the housing to drive the drying blades installed at the front end of the drying drive section; water... The water tank assembly includes a water tank shell with a water tank door on its lower side, and a water tank plug detachably connected to the water tank door. A drying device drives airflow through the water tank door, the water tank assembly, the liquid injection channel, and the liquid injection opening. A sterilization device includes a sterilization and light-emitting component located at the lower end of the housing. A first sterilization compartment is located at the lower end of the housing, within which the sterilization and light-emitting component is positioned. A sterilization and light-transmitting component is located at the opening of the first sterilization compartment, allowing light emitted by the sterilization and light-emitting component to pass through while sealing the opening of the sterilization compartment. This water flosser, through its sterilization and drying devices, accelerates the drying of the water tank while simultaneously sterilizing it, reducing bacterial growth in the water tank and improving the user experience.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure shown in Embodiment 1 of this application.

[0019] Figure 2 This is a top view of the overall structure shown in Embodiment 1 of this application.

[0020] Figure 3 This is shown in Embodiment 1 of this application. Figure 2 A cross-sectional view of section BB.

[0021] Figure 4 This is a schematic diagram of the bottom of the housing shown in Embodiment 1 of this application.

[0022] Figure 5 This is shown in Embodiment 1 of this application. Figure 4 A cross-sectional view of the CC section.

[0023] Figure 6 This is a bottom schematic diagram of the head assembly shown in Embodiment 1 of this application.

[0024] Figure 7 This is a schematic diagram of the overall structure of the upper cover of the machine head housing shown in Embodiment 1 of this application.

[0025] Figure 8 This is a schematic diagram of the overall structure of the water tank assembly shown in Embodiment 1 of this application.

[0026] Figure 9 This is shown in Embodiment 1 of this application. Figure 3 A detailed magnified diagram of point D in the middle.

[0027] Figure 10 This is a schematic diagram of the bottom of the housing shown in Embodiment 1 of this application.

[0028] Figure 11 This is shown in Embodiment 1 of this application. Figure 10 A cross-sectional view of the EE section.

[0029] Figure 12 This is shown in Embodiment 1 of this application. Figure 11 A detailed magnified diagram of point F in the middle.

[0030] Explanation of reference numerals in the attached figures

[0031] Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0033] 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 connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being 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 includes the first feature being 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.

[0035] The present application will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0036] Example 1

[0037] refer to Figures 1 to 12 As shown, a dental flosser is proposed, comprising: a head assembly 3 and a water tank assembly 4; the head assembly 3 includes a housing 310, a sterilization device 5, and a drying device; the lower end of the housing 310 is connected to the water tank assembly 4, and the upper end of the housing 310 is provided with a liquid injection opening 311, forming a liquid injection channel communicating with the water tank assembly 4 within the housing 310; the drying device includes a drying power component 318 and drying blades 319, the drying power component 318 is installed inside the housing 310, and the front end of the drying drive part of the drying power component 318 extends out of the lower end of the housing 310 to drive the drying blades 319 installed at the front end of the drying drive part; the water tank assembly 4 includes a water tank shell. 410, a water tank door 411 is provided on the lower side of the water tank housing 410, and a water tank plug 412 is detachably connected to the water tank door 411; the air drying device is used to drive airflow to flow through the water tank door 411, the water tank assembly 4, the liquid injection channel and the liquid injection opening 311; the sterilization device 5 includes a sterilization light-emitting component disposed at the lower end of the housing 310; a sterilization first accommodating part 501 is provided at the lower end of the housing 310, the sterilization light-emitting component is disposed in the sterilization first accommodating part 501, and a sterilization light-transmitting component 504 is provided at the opening of the sterilization first accommodating part 501, the sterilization light-transmitting component 504 allows the light emitted by the sterilization light-emitting component to pass through and seals the opening of the sterilization accommodating part.

[0038] Specifically, a first recess 312 is formed at the lower end of the housing 310. The first recess 312 is provided with a liquid injection outlet 314 that connects to the liquid injection channel. A second recess 313 is also provided adjacent to the first recess 312. The depth of the second recess 313 is less than that of the first recess 312 and the two are connected. The drying blade 319 is disposed in the second recess 313. Therefore, the drying blade 319 will not encroach on the internal space of the water tank housing 410 and will not affect the original capacity of the water tank housing 410 to hold cleaning liquid.

[0039] More specifically, the inner side of the housing 310 is provided with a drying power bracket 315, which is equipped with a drying motor as the drying power component 318; the bottom of the housing 310 is provided with a drying shaft hole 316 that connects to the second recess 313, and the output shaft of the drying motor passes through the drying shaft hole 316. The output shaft of the drying motor and the drying shaft hole 316 are rotatably sealed to prevent the cleaning liquid in the water tank from entering the drying power bracket 315 through the drying shaft hole 316 during use, causing a short circuit in the drying power component 318.

[0040] To further enhance the waterproof function, on the one hand, the air-drying power component 318 can be set as a waterproof motor; on the other hand, the air-drying power bracket 315 is cylindrical. The air-drying motor is sealed inside the air-drying power bracket 315 with waterproof adhesive, or the air-drying power bracket 315 is provided with a shielding component to seal the air-drying motor inside the air-drying power bracket 315. Under this sealed structure, even if the cleaning fluid enters the interior of the air-drying power bracket 315, it will not enter the housing 310, thereby protecting other electrical components inside the head assembly 3.

[0041] To ensure the drying effect, the outer diameter of the drying blade 319 extends beyond the second recess 313. When the drying blade 319 is viewed from above along its axial direction, the projection of the drying blade 319 during rotation falls into the first recess 312. This structure allows the airflow generated by the agitation of the drying blade 319 to better enter the first recess 312, or the airflow agitated by the drying blade 319 can enter the second recess 313 from the first recess 312.

[0042] While ensuring the drying effect, the addition of cleaning fluid may impact the drying blade 319, thereby causing damage to the drying blade 319. Therefore, when the drying blade 319 is viewed from above along its axial direction, the projection of the drying blade 319 during rotation is outside the range of the injection outlet 314.

[0043] To facilitate the installation of the water tank structure, a water tank bottom pad 413 is provided at the bottom of the water tank shell 410, the water tank door 411 is provided on the side wall at the lower end of the water tank shell 410, and the water tank plug 412 is rotatably connected to the water tank bottom pad 413.

[0044] Furthermore, the oral irrigator proposed in this application also has a storage function, wherein the water tank housing 410 is sleeved on the machine housing 310, and the machine housing 310 can be inserted and stored in the water tank housing 410.

[0045] The specific structural configuration of the housing 310 is as follows: the upper end of the housing 310 forms an upper opening for the head housing, and an upper cover 320 for the head housing is installed at the upper opening. The upper cover 320 for the head housing has the liquid injection opening 311, which extends inward to form a liquid injection pipe 321. The bottom of the housing 310 has a liquid injection pipe connection part 317, which communicates with the liquid injection outlet 314. The liquid injection pipe 321 is sealed and inserted into the liquid injection pipe connection part 317, forming part of the liquid injection channel. The liquid injection opening 311 is equipped with a liquid injection sealing cap 322, and the upper cover 320 for the head housing is fitted with a head housing decorative cap 323. The liquid injection sealing cap 322 is detachably connected to the head housing decorative cap.

[0046] The sterilization device 5 employs the following structure to ensure its airtightness, preventing the cleaning solution in the water tank from entering the sterilization device 5. A second sterilization container 502 is provided around the outer periphery of the first sterilization container 501, and the sterilization light-transmitting component 504 is snapped into the second sterilization container 502. A third sterilization container 503 is provided at the bottom of the second sterilization container 502, and a sterilization sealing component 505 is disposed within the third sterilization container 503. Part of the sterilization sealing component 505 is exposed outside the third sterilization container 503 and elastically abuts against the sterilization light-transmitting component 504. A sterilization protrusion 506 is provided at the lower end of the housing 310, and the first sterilization container 501 is formed within the sterilization protrusion 506. A sterilization bracket 507 is fitted around the outer periphery of the sterilization protrusion 506, and this sterilization bracket 507 abuts against the sterilization light-transmitting component 504 to prevent the sterilization light-transmitting component 504 from falling off. The upper end of the sterilization bracket 507 forms a sterilization bracket fitting groove 508, through which the sterilization bracket 507 is fitted onto the sterilization protrusion 506. The sterilization bracket 507 is provided with a sterilization bracket light-transmitting part 509, and the water tank assembly 4 includes a water tank shell 410. The cross-sectional shape of the sterilization bracket light-transmitting part 509 is adapted to the cross-sectional shape of the water tank shell 410.

[0047] Furthermore, to control the range of ultraviolet irradiation generated by the sterilization device 5, the sterilization bracket 507 is provided with a light-transmitting part 509. One end of the sterilization bracket 507 facing the water tank assembly 4 has a sterilization light-guiding chamfer 510 on the outer periphery of the light-transmitting part 509. For example, the irradiation angle of the sterilization light is 120 degrees, and the water tank assembly 4 includes a water tank shell 410, which is fitted onto the housing 310. The housing 310 can be inserted into and housed within the water tank shell 410. The water tank shell 410 is transparent. Since water flossers are often placed on washbasins or similar locations, their surroundings are often damp, leading to bacterial growth and mold. Therefore, making the water tank shell 410 transparent allows the water flosser to function as an ultraviolet sterilizing lamp to irradiate and sterilize the surrounding environment.

[0048] However, the irradiation range of the front side of the water flosser during the sterilization process should be controlled to a small range. The front side of the housing 310 is provided with an operation button, and the portion of the light-transmitting part 509 of the sterilization frame facing the front side of the housing 310 is provided with a second light guide chamfer 511, so that the range of the sterilization light-emitting component irradiating the front side of the water tank housing 410 is smaller than the irradiation range of the other sides of the water tank housing 410.

[0049] Specifically, in this application, the sterilization and light-emitting component includes a sterilization circuit board 512 and ultraviolet LED beads 513 disposed on the sterilization circuit board 512.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "one example," "some embodiments," "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 application. 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.

[0051] The above description, in conjunction with specific embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. Those skilled in the art to which this application pertains can make several simple deductions or substitutions without departing from the concept of this application.

Claims

1. A dental flosser, characterized in that, include: Head assembly and water tank assembly; The head assembly includes the housing, sterilization device, and drying device; The lower end of the housing is connected to the water tank assembly, and the upper end of the housing is provided with a liquid injection opening. A liquid injection channel is formed inside the housing, connecting the water tank assembly. The drying device includes a drying power component and drying blades. The drying power component is installed inside the housing, and the front end of the drying drive part of the drying power component extends out of the lower end of the housing to drive the drying blades installed at the front end of the drying drive part. The water tank assembly includes a water tank shell, and a water tank door is opened on the lower side of the water tank shell. A water tank plug is detachably connected to the water tank door. The drying device is used to drive airflow, which flows through the water tank door, the water tank assembly, the liquid injection channel, and the liquid injection opening. The sterilization device includes a sterilization and light-emitting component disposed at the lower end of the housing; a first sterilization accommodating part is provided at the lower end of the housing, the sterilization and light-emitting component is disposed in the first sterilization accommodating part, and a sterilization and light-transmitting component is provided at the opening of the first sterilization accommodating part, the sterilization and light-transmitting component allows the light emitted by the sterilization and light-emitting component to pass through and seals the opening of the sterilization accommodating part. The lower end of the housing has a first recess, and the first recess has an injection outlet that communicates with the injection channel. Adjacent to the first recess, there is also a second recess. The depth of the second recess is less than that of the first recess and the two are connected. The drying blade is disposed in the second recess. The outer diameter of the drying blade extends beyond the second recess. When the drying blade is viewed from above along its axial direction, the projection of the drying blade during rotation falls into the first recess and is outside the range of the injection outlet.

2. The oral irrigator according to claim 1, characterized in that, The inner side of the housing is provided with a drying power bracket, and the drying power bracket is equipped with a drying motor as the drying power component; the bottom of the housing is provided with a drying shaft hole that connects to the second recess, and the output shaft of the drying motor passes through the drying shaft hole, and the output shaft of the drying motor rotates and seals with the drying shaft hole.

3. The oral irrigator according to claim 2, characterized in that, The air-drying power support is cylindrical; the air-drying motor is sealed inside the air-drying power support with waterproof adhesive, or the air-drying power support is provided with a shielding component to seal the air-drying motor inside the air-drying power support.

4. The oral irrigator according to claim 1, characterized in that, The upper end of the housing forms an opening on the head shell, and the opening on the head shell is equipped with an upper cover. The upper cover on the head shell has the liquid injection opening, which extends into the housing to form a liquid injection pipe. The bottom of the housing has a liquid injection pipe connection, which is connected to the liquid injection outlet. The liquid injection pipe is sealed and inserted into the liquid injection pipe connection, forming part of the liquid injection channel.

5. The oral irrigator according to claim 1, characterized in that, The outer periphery of the first sterilization accommodating part is provided with a second sterilization accommodating part, and the sterilization light-transmitting component is snapped into the second sterilization accommodating part.

6. The oral irrigator according to claim 5, characterized in that, The bottom of the second sterilization accommodating part is provided with a third sterilization accommodating part, and a sterilization sealing component is disposed inside the third sterilization accommodating part. The sterilization sealing component is partially exposed outside the third sterilization accommodating part and elastically abuts against the sterilization light-transmitting component.

7. The oral irrigator according to claim 1, characterized in that, The lower end of the housing is provided with a sterilization protrusion, the first sterilization accommodating part is opened in the sterilization protrusion, and a sterilization support is sleeved on the outer periphery of the sterilization protrusion. The sterilization support is used to abut against the sterilization light-transmitting component to prevent the sterilization light-transmitting component from falling off.

8. The oral irrigator according to claim 7, characterized in that, The sterilization bracket is provided with a light-transmitting part of the sterilization bracket body, and one end of the sterilization bracket facing the water tank assembly is provided with a sterilization light guide chamfer on the outer periphery of the light-transmitting part of the sterilization bracket body. The water tank assembly includes a water tank shell, which is sleeved on the machine housing, and the machine housing can be inserted into and housed within the water tank shell.

9. The oral irrigator according to claim 8, characterized in that, The water tank shell is transparent, and the light-transmitting part of the sterilization frame facing the front of the shell is provided with a second light-guiding chamfer, so that the area of ​​the sterilization and light-emitting component illuminating the front of the water tank shell is smaller than the other sides of the water tank shell.