A waterpik and its nozzle

Abstract

This utility model provides a water flosser and its nozzle. The nozzle includes: a spray bar with a water flow channel, a water inlet port, and a water outlet port; and a brush assembly comprising multiple first brushes and multiple second brushes. The first brushes are evenly arranged around the water outlet port, and the second brushes are also evenly arranged around the water outlet port. The second brushes are located between the first brushes and the water outlet port, and the height of the tip of the first brush relative to the surface of the spray bar is greater than the height of the tip of the second brush relative to the surface of the spray bar. Compared with the prior art, the arrangement of the brushes in the nozzle of this utility model is more conducive to cleaning all corners of the teeth and the gaps in the braces. Utilizing the shorter length of the second brushes compared to the first brushes, it ensures that the first brushes also clean the teeth and gaps while the second brushes clean the braces. Simultaneously, the taller first brushes can reach deep into the inside of the metal braces for cleaning, resulting in better cleaning effect and a better user experience.

Description

Technical Field

[0001] This utility model relates to the field of oral irrigator technology, specifically to an oral irrigator and its nozzle. Background Technology

[0002] Modern people are paying increasing attention to oral hygiene, recognizing the close relationship between oral health and overall health. Oral hygiene problems not only affect oral health but can also trigger a range of systemic diseases, such as periodontitis, heart disease, and diabetes. Therefore, modern people are placing greater emphasis on oral hygiene and taking more measures to maintain oral health, including the use of water flossers. Water flossers use high-pressure water to rinse the mouth, cleaning teeth, between teeth, and gums, effectively removing plaque, bacteria, and food debris, and preventing oral problems such as bad breath, cavities, and periodontitis. Simultaneously, they can stimulate blood circulation in the gums, promoting oral health.

[0003] For people undergoing orthodontic treatment (i.e., those wearing braces or braces), cleaning the braces and the spaces between teeth is challenging. While traditional water flossers with bristles can clean the tooth surface by impacting food debris with water flow, the bristles struggle to reach the spaces between teeth and the inside of the metal braces. To address this, long and short bristles were designed to clean different areas. However, currently, long bristles are typically only positioned on the left and right sides of the water outlet, while short bristles are only positioned on the top and bottom sides of the outlet. This limited placement prevents effective cleaning of the teeth and the surrounding area of ​​the braces simultaneously, requiring users to constantly adjust the angle, resulting in a poor user experience. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a dental flosser and its nozzle.

[0005] One embodiment of this utility model provides a nozzle for a dental flosser, comprising:

[0006] A spray bar, wherein a water flow channel, a water inlet port and a water outlet port are provided at the spray bar, and the water inlet port and the water outlet port are respectively connected to the two ends of the water flow channel;

[0007] A brush assembly is disposed on the spray bar. The brush assembly includes a plurality of first brushes and a plurality of second brushes. The plurality of first brushes are evenly arranged around the water outlet port, and the plurality of second brushes are evenly arranged around the water outlet port. The second brushes are located between the first brushes and the water outlet port. The height of the tip of the first brush relative to the surface of the spray bar is greater than the height of the tip of the second brush relative to the surface of the spray bar.

[0008] In some alternative embodiments, the cross-sectional area of ​​the first brush in the direction perpendicular to the tip to the root of the first brush is greater than the cross-sectional area of ​​the second brush in the direction perpendicular to the tip to the root of the second brush.

[0009] In some alternative embodiments, the second brush is evenly arranged around the water outlet on a circle of diameter a, and the first brush is evenly arranged around the water outlet on a circle of diameter b, wherein a is not less than 2.5 mm and not more than 4.0 mm, and b is greater than 4.0 mm and not more than 8.0 mm.

[0010] In some optional embodiments, the water outlet includes a pressurization channel and a jetting channel, which are connected in sequence. The pressurization channel is in communication with the water flow channel. The diameter of the pressurization channel gradually decreases in the direction away from the water flow channel, and the minimum diameter of the pressurization channel is smaller than the diameter of the jetting channel.

[0011] In some alternative embodiments, the bristle assembly is disposed on the side of the spray bar or at the end of the spray bar.

[0012] In some optional embodiments, when the bristle assembly is disposed on the side of the spray bar, the side of the spray bar is also provided with a rear cover and an opening, the opening being in communication with the water flow channel, the water outlet and the opening being located on both sides of the water flow channel respectively, and the positions of the water outlet and the opening being corresponding, the bristle assembly and the rear cover being disposed on both sides of the spray bar respectively, and the rear cover closing the opening.

[0013] In some alternative embodiments, when the bristle assembly is disposed at the end of the spray bar, the spray bar is divided into a straight section and a curved section connected to each other, the water flow channel is located within the straight section and the curved section, the water inlet is located on the straight section, the curved section bends toward the side of the straight section, and the water outlet and the bristle assembly are disposed at the end of the curved section away from the straight section.

[0014] In some alternative embodiments, a bristle head is provided at the end of the curved section away from the straight section, and the water outlet and the bristle assembly are disposed on the bristle head.

[0015] In some alternative implementations, the tip of the first brush is tapered.

[0016] One embodiment of this utility model provides a dental flosser, including: a nozzle of a dental flosser as described above.

[0017] Compared to existing technologies, the brush arrangement of the nozzle of this utility model's water flosser is more conducive to cleaning every corner of the teeth and every gap in the braces. Utilizing the shorter second brush compared to the first, it ensures that while the second brush cleans the braces, the first brush also cleans the teeth and interdental spaces. Simultaneously, the taller first brush can reach deep into the inside of the metal braces for cleaning. Furthermore, both the first and second brushes are arranged around the water outlet. When the second brush cleans the braces' brackets, the first brush can simultaneously clean the interdental spaces and gingival sulcus, improving the cleaning effect. Moreover, since the second brush is typically designed to reach into the gaps between teeth or braces, the larger cross-sectional area of ​​the first brush means it has more bristles, making it easier for the bristles to enter the gaps and increasing the amount of bristles reaching into the gaps, thus achieving a better cleaning effect. The overall structure is simple, easy to manufacture, and provides a better user experience.

[0018] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a first cross-sectional view of the nozzle of a water flosser according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of a partial structure of one side of the nozzle of a water flosser according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the nozzle of a water flosser according to an embodiment of the present invention;

[0022] Figure 4 This is a second cross-sectional view of the nozzle of a water flosser according to an embodiment of the present invention;

[0023] Figure 5 for Figure 4 The enlarged view at point A is shown below;

[0024] Figure 6 This is an exploded cross-sectional view of the nozzle of a water flosser according to an embodiment of the present invention.

[0025] Figure 7 This is a partial cross-sectional view of the nozzle structure of a water flosser according to another embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of a partial structure of the first brush according to another embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Spray bar; 11. Water flow channel; 12. Water inlet port; 13. Water outlet port; 131. Pressurization channel; 132. Spray channel; 14. Rear cover; 15. Opening; 16. Straight section; 17. Curved section; 171. Bristle head; 20. Brush assembly; 21. First brush; 22. Second brush. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," 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 utility model. 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.

[0033] Please see Figure 1 and Figure 2 One embodiment of this utility model provides a nozzle for a dental flosser, comprising:

[0034] The spray bar 10 is provided with a water flow channel 11, a water inlet port 12 and a water outlet port 13, and the water inlet port 12 and the water outlet port 13 are respectively connected to the two ends of the water flow channel 11.

[0035] The brush assembly 20 is mounted on the spray bar 10. The brush assembly 20 includes multiple first brushes 21 and multiple second brushes 22. The multiple first brushes 21 are evenly arranged around the water outlet port 13, and the multiple second brushes 22 are evenly arranged around the water outlet port 13. The second brushes 22 are located between the first brushes 21 and the water outlet port 13. The arrangement of the first brushes 21 and the second brushes 22 is more conducive to cleaning all corners of the teeth and all gaps of the orthodontic appliance, reducing the need for the user to adjust the angle of the spray bar 10 and enabling the brush assembly 20 to achieve thorough and effective cleaning.

[0036] The height of the tip of the first brush 21 relative to the surface of the spray bar 10 is greater than the height of the tip of the second brush 22 relative to the surface of the spray bar 10. While the second brush 22 is brushing the braces, the first brush 21 is also brushing the teeth and gaps between the teeth. At the same time, the higher first brush 21 can reach deep into the inside of the metal braces for cleaning.

[0037] Since both the first brush 21 and the second brush 22 are arranged around the water outlet 13, and the first brush 21 is longer than the second brush 22, when the second brush 22 cleans the brackets of the orthodontic appliance, the first brush 21 can clean the gaps between teeth and the gingival sulcus at the same time, which improves the cleaning effect and cleaning efficiency. When the second brush 22 cleans the occlusal surface, each of the first brushes 21 can reach into the gap between the brackets on both sides of the teeth and the tooth surfaces on both sides of the teeth, and can also reach into the gaps between adjacent teeth. Therefore, the cleaning effect is better and the cleaning efficiency is higher.

[0038] In some optional embodiments, the cross-sectional area of ​​the first brush 21 in the direction perpendicular to the tip to the root of the first brush 21 is greater than the cross-sectional area of ​​the second brush 22 in the direction perpendicular to the tip to the root of the second brush 22. It should be noted that the first brush 21 is a single clump of first bristles formed by multiple first bristles, and the second brush 22 is a single clump of second bristles formed by multiple second bristles. Therefore, the number of first bristles in a clump of first brush 21 is greater than the number of second bristles in a clump of second brush 22. The greater number of first bristles is conducive to increasing the amount of bristles that enter the gaps, making it easier for the first brush 21 to clean the gaps in various places, thereby achieving a better cleaning effect.

[0039] In some alternative embodiments, the second brush 22 is evenly arranged around the water outlet 13 on a circle of diameter a, and the first brush 21 is evenly arranged around the water outlet 13 on a circle of diameter b. The values ​​of a and b can be adjusted according to the actual users. In this embodiment, based on the typical size of teeth and the size of the orthodontic appliance, a is not less than 2.5 mm and not more than 4.0 mm. For example, a can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, etc., and b is greater than 4.0 mm and not more than 8.0 mm. For example, b can be 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, etc., and is not limited to this example.

[0040] Please see Figure 3 The difference between the height of the tip of the first brush 21 relative to the surface of the spray bar 10 and the height of the tip of the second brush 22 relative to the surface of the spray bar 10 is valued as c. The value of c can be set according to the height of the teeth and the distance from the orthodontic attachments (braces, brackets, etc.) to the gaps between the teeth and the gums, so that the second brush bristles can clean the brackets of the orthodontic appliance while the first brush bristles can clean the gaps between the teeth and the gingival sulcus. In this embodiment, based on currently suitable and practical average data, the value of c is between 2.5 and 3.5 mm. For example, c can be 2.5 mm, 3 mm, 3.5 mm, etc., and is not limited to this example.

[0041] Please see Figure 4 and Figure 5In some optional embodiments, the water outlet 13 includes a pressurization channel 131 and a jet channel 132, which are connected sequentially. The pressurization channel 131 is connected to the water flow channel 11. The diameter of the pressurization channel 131 gradually decreases in the direction away from the water flow channel 11, and the minimum diameter of the pressurization channel 131 is smaller than the diameter of the jet channel 132. The gradually decreasing design of the pressurization channel 131 increases the water pressure, thereby increasing the water pressure entering the jet channel 132 and thus enhancing the flushing force. It should be noted that the pressurization channel 131 can be a completely gradually decreasing design, or it can be only partially gradually decreasing; this is not a limitation.

[0042] The arrangement of the bristle assembly 20 can be designed according to actual needs. For example, in some optional embodiments, the bristle assembly 20 is arranged on the side of the spray bar 10 or at the end of the spray bar 10.

[0043] Please see Figure 6 When the bristle assembly 20 is located on the side of the spray bar 10, in order to facilitate the shaping of the water outlet port 13, in some other optional embodiments, the side of the spray bar 10 is also provided with a rear cover 14 and an opening 15. The opening 15 communicates with the water flow channel 11, and the water outlet port 13 and the opening 15 are located on both sides of the water flow channel 11, and their positions correspond to each other. This facilitates the processing equipment to extend into the water flow channel 11 from the opening 15 and then process the water outlet port 13. This ensures that the shape of the water outlet 13 meets the requirements, especially when a pressurization channel 131 and a jet channel 132 are designed. Since the pressurization channel 131 gradually narrows towards the jet channel 132, it is more difficult for the processing equipment to extend from the jet channel 132 to process the pressurization channel 131. However, the pressurization channel 131 gradually widens towards the opening 15, making it easier for the processing equipment to extend from the opening 15 to process the pressurization channel 131, thus improving production efficiency.

[0044] Of course, in other ways, the spray bar 10 can be molded as a single piece without designing a back cover 14, and this example is not the only one.

[0045] The bristle assembly 20 and the rear cover 14 are respectively disposed on both sides of the spray bar 10. The rear cover 14 can close the opening 15, thereby sealing the opening 15 and preventing water in the water channel 11 from flowing out of the opening 15. The rear cover 14 can be fixed to the part around the opening 15 by ultrasonic welding, or it can be fixed by other methods, such as threaded engagement between the rear cover 14 and the opening 15, or by adding a waterproof rubber ring or waterproof glue between the rear cover 14 and the opening 15, etc., to improve the sealing performance, etc., and this example is not limited to this.

[0046] Please see Figure 7 When the bristle assembly 20 is located at the end of the spray bar 10, in order to facilitate the spray bar 10 to be aligned with the cleaning area, in some optional embodiments, the spray bar 10 is divided into a straight section 16 and a curved section 17 connected to each other. The water flow channel 11 is located in the straight section 16 and the curved section 17. The water inlet is located on the straight section 16. The curved section 17 is curved toward the side of the straight section 16. The water outlet 13 and the bristle assembly 20 are located at the end of the curved section 17 away from the straight section 16. The bristle assembly 20 is embedded in the end of the curved section 17 away from the straight section 16.

[0047] To facilitate the installation of the bristle assembly 20, in some optional embodiments, a bristle head 171 is provided at the end of the curved section 17 away from the straight section 16, and the water outlet 13 and the bristle assembly 20 are disposed on the bristle head 171. Of course, in other embodiments, the spray bar 10 can be integrally formed without the bristle head 171, and this is not a limitation.

[0048] Similarly, the design of the tufting head 171 also facilitates the processing equipment to process the water outlet port 13 from both sides of the tufting head 171, so that the shape of the water outlet port 13 meets the requirements. Especially when there is a pressurization channel 131 and a jet channel 132, the gradually narrowing design of the pressurization channel 131 makes it difficult for the processing equipment to extend from the jet channel 132 to process the pressurization channel 131. Since the pressurization channel 131 and the jet channel 132 are respectively connected to both sides of the tufting head 171, the processing equipment can process the pressurization channel 131 and the jet channel 132 on both sides of the tufting head 171, thereby reducing the processing difficulty and improving production efficiency.

[0049] The tufted head 171 can be fixed to the end of the curved section 17 by ultrasonic welding, or it can be fixed by other means, such as threaded engagement between the tufted head 171 and the end of the curved section 17, or by adding a waterproof rubber ring or waterproof glue between the tufted head 171 and the end of the curved section 17, thereby improving the sealing performance, and this example is not limited to this.

[0050] Please see Figure 8 In some alternative embodiments, the tip of the first brush 21 is tapered, making it easier to reach into crevices for cleaning. The bristles at the tip of the first brush 21 may be extremely fine, making it easier to reach into crevices.

[0051] The nozzle of the oral irrigator described above can be applied to an oral irrigator, which includes: the nozzle of the oral irrigator described above.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jet for an oral irrigator, characterized in that, include: A spray bar, wherein a water flow channel, a water inlet port and a water outlet port are provided at the spray bar, and the water inlet port and the water outlet port are respectively connected to the two ends of the water flow channel; A brush assembly is disposed on the spray bar. The brush assembly includes a plurality of first brushes and a plurality of second brushes. The plurality of first brushes are evenly arranged around the water outlet port, and the plurality of second brushes are evenly arranged around the water outlet port. The second brushes are located between the first brushes and the water outlet port. The height of the tip of the first brush relative to the surface of the spray bar is greater than the height of the tip of the second brush relative to the surface of the spray bar.

2. A showerhead for an oral irrigator according to claim 1, wherein: The cross-sectional area of ​​the first brush in the direction perpendicular to the tip to the root of the first brush is greater than the cross-sectional area of ​​the second brush in the direction perpendicular to the tip to the root of the second brush.

3. A showerhead for an oral irrigator according to claim 1, wherein: The second brush is evenly arranged around the water outlet on a circle with diameter a, and the first brush is evenly arranged around the water outlet on a circle with diameter b, wherein a is not less than 2.5 mm and not more than 4.0 mm, and b is greater than 4.0 mm and not more than 8.0 mm.

4. A showerhead for an oral irrigator according to claim 1, wherein: The water outlet includes a pressurization channel and a jetting channel, which are connected in sequence. The pressurization channel is connected to the water flow channel. The diameter of the pressurization channel gradually decreases in the direction away from the water flow channel, and the minimum diameter of the pressurization channel is smaller than the diameter of the jetting channel.

5. A showerhead for an oral irrigator according to any one of claims 1 to 4, characterized in that: The bristle assembly is disposed on the side of the spray bar or at the end of the spray bar.

6. A showerhead for an oral irrigator according to claim 5, wherein: When the bristle assembly is disposed on the side of the spray bar, the side of the spray bar is also provided with a rear cover and an opening. The opening is connected to the water flow channel. The water outlet and the opening are respectively located on both sides of the water flow channel, and the positions of the water outlet and the opening are corresponding. The bristle assembly and the rear cover are respectively disposed on both sides of the spray bar, and the rear cover closes the opening.

7. A showerhead for an oral irrigator according to claim 5, wherein: When the bristle assembly is disposed at the end of the spray bar, the spray bar is divided into a straight section and a curved section connected to each other, the water flow channel is located within the straight section and the curved section, the water inlet is located on the straight section, the curved section bends toward the side of the straight section, and the water outlet and the bristle assembly are disposed at the end of the curved section away from the straight section.

8. A showerhead for an oral irrigator according to claim 7, wherein: A bristle head is provided at the end of the curved section away from the straight section, and the water outlet and the bristle assembly are located on the bristle head.

9. The nozzle of a dental flosser according to any one of claims 1 to 4, characterized in that: The tip of the first brush is conical.

10. An oral irrigator characterized by, include: A nozzle for a dental flosser as described in any one of claims 1 to 9.

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