Nozzle of oral irrigator and oral irrigator
By designing nozzles with multiple shrinking and enlarged openings, multiple cavitation runners are cavitationally connected, resulting in rich cavitation bubbles, solving the problem of insufficient cleaning power of existing tooth punching nozzles and easily damaging teeth or gums, achieving efficient and gentle oral cleaning effects.
Patent Information
- Application Number
- CN202421235438.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When the nozzles of existing tooth punchers increase the liquid cleaning force, they can easily damage teeth or gums, and the cleaning effect is difficult to meet the requirements.
A nozzle is designed with a tubular structure, with an inlet end, an outlet end and a connected hollow channel. The hollow channel includes multiple shrinking openings and enlarged openings. The inner diameter of the enlarged opening is greater than the inner diameter of the two adjacent shrinking openings, realizing the cavitation flow path cascade, and generating abundant cavitation bubbles.
Through the cavitation channel cascade, the liquid is cavitated by multiple cavitational channels, resulting in a large number of cavitation bubbles, enhancing the softness of the liquid flow, improving the oral cleaning effect, and avoiding damage to teeth or gums.
Smart Images
Figure CN222623126U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of cleaning equipment, and in particular to a nozzle of a water flosser and a water flosser. Background Art
[0002] In order to achieve a better cleaning effect of the sprayed liquid, the water flosser is generally equipped with a nozzle.
[0003] In order to further improve the cleaning power of the sprayed liquid, the water pressure of the liquid can be increased in various ways so that the impact force of the sprayed liquid is stronger.
[0004] However, when the impact force of the liquid is too strong, it may cause damage to the cleaning target (such as gums), and when the impact force is weak, the cleaning effect may be difficult to achieve the desired effect. Utility Model Content
[0005] In view of this, the present disclosure provides a nozzle of a water flosser and a water flosser. With the help of the nozzle, the water flosser has a better cleaning effect and is not easy to damage teeth or gums.
[0006] Specifically, the following technical solutions are included:
[0007] On the one hand, an embodiment of the present disclosure provides a nozzle of a water flosser, wherein the nozzle is a tubular structure, and the nozzle has an inlet end and an outlet end and a hollow channel connecting the inlet end and the outlet end;
[0008] The hollow channel has a plurality of narrowing ports between the inlet end and the outlet end and an enlarging port between any two adjacent narrowing ports, and the inner diameter of the enlarging port is greater than the inner diameters of the two adjacent narrowing ports.
[0009] Optionally, the inner diameter of the hollow channel presents a gradual transition between the consecutively appearing narrowing opening, the expanding opening, and the other narrowing opening.
[0010] Optionally, the inlet end has a first portion, and the inner diameter of the first portion gradually decreases in the direction approaching the outlet end until it connects with one of the narrowing ports.
[0011] Optionally, the inner diameter of the enlarged opening is equal to the maximum inner diameter of the first portion of the inlet end.
[0012] Optionally, the maximum inner diameter of the first part is greater than or equal to 2 mm.
[0013] Optionally, the inlet end further has a second part connected to the first part, the inner diameter of the second part is equal to or gradually transitions to the first part, and the inner diameter of the second part is less than or equal to the maximum inner diameter of the first part.
[0014] Optionally, the inner diameter of the outlet end gradually increases from the closest narrowing port in a direction away from the narrowing port.
[0015] Optionally, the maximum inner diameter of the outlet port is between 1-1.6 mm.
[0016] Optionally, the maximum inner diameter of the outlet end is smaller than the maximum inner diameter of the first portion of the inlet end.
[0017] Optionally, the nozzle meets at least one of the following requirements:
[0018] The inner diameter of the narrowing opening is between 0.4 and 0.8 mm;
[0019] The inner diameter of the enlarged opening is greater than or equal to 2 mm.
[0020] Optionally, the inner diameters of the multiple narrowing openings are all equal.
[0021] Optionally, the number of the narrowing openings is more than 2, the number of the expanding openings is more than 1, and the inner diameters of the multiple expanding openings are equal.
[0022] On the other hand, an embodiment of the present disclosure provides a water flosser having a nozzle as described above.
[0023] The disclosed embodiments provide a nozzle of a water flosser and a water flosser, wherein the nozzle has a plurality of narrowing ports between the inlet end and the outlet end, and an enlarging port between any two adjacent narrowing ports, and thus a multi-section cavitation channel cascade exists in the nozzle, and the liquid can be cavitated multiple times through the multi-section cavitation channel cascade, thereby generating abundant cavitation bubbles. At the same time, each time the narrowing port is passed, the bubbles and the liquid can be fully and evenly mixed in the adjacent enlarging port and its vicinity, ensuring that the water flow is not dispersed, thereby improving the effect of the next cavitation. Finally, the liquid sprayed from the nozzle contains a large number of cavitation bubbles, and the bubbles continuously gush out from the liquid flow, the softness of the liquid flow is significantly enhanced, and the cleaning effect on the oral cavity is also greatly improved, so that the object to be cleaned can be efficiently cleaned without damaging the object to be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0025] Figure 1 A cross-sectional view of a nozzle of a water flosser provided in an embodiment of the present disclosure;
[0026] Figure 2A schematic diagram of the structure of a water flosser provided in an embodiment of the present disclosure.
[0027] The reference numerals in the figures represent respectively:
[0028] 1- Nozzle;
[0029] 01- fluid conducting section;
[0030] 02-liquid spraying section;
[0031] 11-inlet end; 111-first part; 112-second part;
[0032] 12-export port;
[0033] 13-Hollow channel;
[0034] 14-Narrow the mouth;
[0035] 15-Enlarge the mouth;
[0036] 2- Water storage tank;
[0037] 3- Driving structure.
[0038] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0040] The directional nouns involved in the embodiments of the present disclosure, such as "up", "down", "side", etc., are generally based on the orientation shown in the figure or the nozzle of the water flosser or the relative orientation relationship between the structures when the water flosser is usually arranged, and these directional nouns are used only to more clearly describe the relationship between structures, and are not intended to describe absolute orientation. When the water flosser or its nozzle is placed in different postures, the orientation may change, for example, "up" and "down" may be interchangeable. In general, in the embodiments of the present disclosure, "up" and "down" can be based on the ground, with the side farther away from the ground being the upper side and the side closer to the ground being the lower side.
[0041] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.
[0042] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0043] In a first aspect, the present disclosure provides a nozzle of a water flosser. Figure 1 , Figure 1 A cross-sectional view of the nozzle 1 of the oral irrigator is shown.
[0044] Combination Figure 1 The nozzle 1 is a tubular structure, and has an inlet end 11 and an outlet end 12 and a hollow channel 13 connecting the inlet end 11 and the outlet end 12;
[0045] The hollow channel 13 has a plurality of narrowing ports 14 between the inlet end 11 and the outlet end 12 and an enlarged port 15 between any two adjacent narrowing ports 14 . The inner diameter of the enlarged port 15 is greater than the inner diameters of the two adjacent narrowing ports 14 .
[0046] It should be noted that “plurality” in the present disclosure refers to two or more than two. Figure 1 In the example, only two narrowing openings and one enlarging opening are used for illustration, but it should be understood that Figure 1 A nozzle having any number of narrowing openings is obtained.
[0047] In this embodiment, the nozzle is a tubular structure having a hollow channel connecting the inlet end and the outlet end, through which the liquid can be ejected. In the hollow channel, cavitation occurs each time the liquid passes through the narrowing port, and the tiny bubbles contained in the liquid expand rapidly, forming cavitation bubbles containing water vapor inside the liquid. Subsequently, the liquid containing cavitation bubbles approaches the enlarged port, and is fully mixed at the enlarged port and its vicinity, and then gradually flows to the next narrowing port, and the next level of cavitation occurs, realizing the cascade amplification of the cavitation effect until it reaches the outlet end. In this way, the liquid ejected from the outlet end contains a large number of cavitation bubbles (both in number and density), and a large number of cavitation bubbles will emerge from the liquid and break on or near the surface of the object to be cleaned (such as the tooth surface, the tooth gap or other oral cleaning dead corners), forming a local impact force, effectively enhancing the cleaning effect.
[0048] By setting up multiple narrowing ports, the cavitation effect can be amplified in series, so that the bubble content in the liquid is effectively increased, thereby enhancing the cleaning effect. At the same time, the inner diameter of the enlarged port is larger than the inner diameters of the two adjacent narrowing ports, which can effectively ensure that the bubbles generated after each cavitation effect occurs are fully mixed with the liquid, and ensure that the overall pressure of the flow channel is balanced, without a sharp increase in local pressure, thereby improving the overall structural stability of the nozzle.
[0049] That is, the disclosed embodiment provides a nozzle of a water flosser, the nozzle having a plurality of narrowing ports between the inlet end and the outlet end, and an enlarging port between any two adjacent narrowing ports, so that there are multiple cavitation flow channel cascades in the nozzle, and the liquid can be cavitated multiple times through the multiple cavitation flow channels, thereby generating abundant cavitation bubbles. At the same time, each time the narrowing port is passed, the bubbles and the liquid can be fully and evenly mixed in the adjacent enlarging port and its vicinity, ensuring that the water flow is not dispersed, thereby improving the effect of the next cavitation. Finally, the liquid sprayed from the nozzle contains a large number of cavitation bubbles, and the bubbles continuously gush out from the liquid flow, the softness of the liquid flow is significantly enhanced, and the cleaning effect on the oral cavity is greatly improved, so that the object to be cleaned can be efficiently cleaned without damaging the object to be cleaned.
[0050] In some embodiments, continue to refer to Figure 1 The inner diameter of the hollow channel 13 is gradually transitioned between a shrinking opening 14, an expanding opening 15, and another shrinking opening 14 that appear continuously.
[0051] Based on the above settings, it can be ensured that the cavitation flow channel does not undergo a sudden change in size, and the liquid flow or bubbles in the flow channel will not suddenly change state due to a sudden change in pressure, so that the bubbles and liquid flow generated by the cavitation effect can be mixed more smoothly, which is also conducive to improving the effect of the next level of cavitation.
[0052] In some embodiments, reference Figure 1 The inlet end 11 has a first portion 111 , and the inner diameter of the first portion 111 gradually decreases in the direction close to the outlet end 12 until it connects with a narrowing port 14 .
[0053] Through the above arrangement, the flow channel of the first part at the inlet end of the nozzle can be gradually narrowed, and the flow rate of the liquid can be gradually accelerated rather than suddenly accelerated, thereby avoiding sudden changes in pressure in the flow channel, which is beneficial to improving the structural stability of the nozzle and increasing the service life of the nozzle.
[0054] Optional, reference Figure 1 , the inner diameter of the expanded port 15 is equal to the maximum inner diameter of the first part 111 of the inlet end 11. In this way, it can be ensured that the bubbles and liquid flow generated after the cavitation effect have sufficient space to mix with each other, and the space volume for achieving mixing is similar to the internal space volume corresponding to the first part of the inlet end, which fully meets the mixing space requirements of the bubbles and the liquid flow, and ensures that the pressure in different sections of the flow channel does not change too much, ensuring a long service life of the nozzle.
[0055] Optionally, the maximum inner diameter of the first part 111 is greater than or equal to 2 mm. In combination with the above content, it can be understood that the maximum inner diameter of the first part 111 here is actually the inner diameter of the end of the first part farthest from the narrowing port. Based on the above size setting, it can be ensured that when the liquid flow enters the first part, since the inner diameter of the hollow channel is larger here, the volume of liquid entering the first part is larger, which is conducive to achieving a higher flow rate at the subsequent narrowing port, and generating more abundant cavitations after passing through the narrowing port.
[0056] Optional, reference Figure 1 The inlet end 11 also has a second part 112 connected to the first part 111 , the inner diameter of the second part 112 is equal to or gradually transitions, and the inner diameter of the second part 112 is less than or equal to the maximum inner diameter of the first part 111 .
[0057] The second part 112 is actually located on the side of the first part 111 away from the narrowing port, and is used to guide the liquid into the first part 111. The inner diameter of the second part 112 can be equal or set to a gradual transition according to needs. The inner diameter of the second part 112 is less than or equal to the maximum inner diameter of the first part 111, ensuring that the liquid flow gradually flows into the first part 111 at a relatively stable speed, and after reaching the first part, the flow rate increases rapidly and uniformly, focusing the acceleration process of the liquid flow on the first part, which is conducive to more smoothly achieving the cavitation effect at the subsequent narrowing port.
[0058] In some embodiments, reference Figure 1 The inner diameter of the outlet end 12 gradually increases from the nearest narrowing opening 14 in the direction away from the narrowing opening 14 .
[0059] By setting the inner diameter of the outlet end to gradually increase, it can be ensured that the liquid flow containing cavitation bubbles can be ejected more easily, and the cavitation bubbles can be ejected more easily from the liquid flow during the ejection process.
[0060] Optionally, the maximum inner diameter of the outlet end 12 is between 1 and 1.6 mm. Combined with the previous description, the maximum inner diameter here actually refers to the inner diameter of the outlet end away from the narrowing mouth. Since the liquid flow is already rich in a large number of bubbles, this size can ensure that the bubbles in the liquid flow are more likely to overflow from the liquid flow, thereby achieving effective cleaning of the gums to be cleaned.
[0061] Optional, reference Figure 1 , the maximum inner diameter of the outlet end 12 is smaller than the maximum inner diameter of the first part 111 of the inlet end 11. In this way, the hollow channel of the tubular structure presents a state in which the inner diameter at the inlet is larger than the inner diameter at the outlet as a whole, and then after the liquid flows through the hollow channel, the flow rate and pressure of the liquid flow will be relatively increased, so that the object to be cleaned can be impacted at a certain flow rate and pressure, thereby improving the cleaning effect.
[0062] Optionally, the nozzle 1 meets at least one of the following conditions:
[0063] The inner diameter of the narrowing opening 14 is between 0.4 and 0.8 mm;
[0064] The inner diameter of the enlarged opening 15 is greater than or equal to 2 mm.
[0065] In this embodiment, setting the inner diameter of the narrowing port within the above range can ensure that the flow velocity of the liquid flow at the narrowing port can reach a higher flow velocity value, and the cavitation effect is more significant after passing through the narrowing port, and more abundant cavitation bubbles are generated. Setting the inner diameter of the expanding port within the above range can ensure that the generated cavitation bubbles and the liquid flow have sufficient space to merge with each other before entering the next cavitation flow channel, so that the next cavitation effect is more sufficient, thereby improving the step-by-step expansion or enhancement effect of the multi-stage cavitation flow channel.
[0066] In addition, the size parameters given above can ensure that the overall pressure of the flow channel in the nozzle is relatively balanced, the pressure at the expanded port is balanced with the pressure at the inlet end and the pressure at the end nozzle at the outlet end, and the cavitation bubble content is relatively high. However, it is easy to understand that the above size parameters can also be adjusted according to needs, and the embodiments of the present disclosure do not impose too many restrictions.
[0067] In some embodiments, reference Figure 1 The inner diameters of the plurality of narrowing ports 14 are all equal. This ensures that the pressure in the cascaded multi-section cavitation flow passage (each narrowing port and a section of flow passage thereafter can be regarded as a cavitation flow passage) is relatively balanced.
[0068] In some embodiments, the number of the narrowing ports 14 is more than 2, the number of the expanding ports 15 is more than 1, and the inner diameters of the multiple expanding ports 15 are equal. This ensures that the pressure of the mixing channel (a channel where bubbles and liquid flow mix) corresponding to the cascaded multiple sections of cavitation channels is relatively balanced.
[0069] Optionally, the nozzle is made of a transparent material. Optionally, the transparent material may include acrylonitrile butadiene styrene (ABS). By making the nozzle of a transparent material, the multi-stage cavitation phenomenon inside the nozzle can be observed with the naked eye, so that the user can intuitively feel the generation of bubbles, thereby improving the aesthetics of the nozzle.
[0070] It should be noted that the expression "equal" is used in the embodiments of the present disclosure, and here "equal" not only includes the situation of being completely equal, but also includes the situation of being approximately equal.
[0071] It should be noted that, in some embodiments, reference Figure 2The nozzle of the water flosser may have a liquid guiding section 01 and a liquid spraying section 02. The nozzle described in the above embodiment may actually be equivalent to Figure 2 The liquid spraying section 02 of the nozzle 1 shown, the inlet end in the above embodiment is equivalent to the inlet end of the liquid spraying section 02. With the help of the liquid guiding section 01, the cleaning scene of the nozzle can be expanded, for example, it can be used to clean the deep part of the oral cavity.
[0072] In another embodiment, the water flosser may also directly have Figure 1 The nozzle shown, i.e. Figure 1 The inlet end shown is directly connected to the device body of the oral irrigator.
[0073] In a second aspect, an embodiment of the present disclosure provides a water flosser having a nozzle as any of the water flossers described above.
[0074] In some embodiments, reference Figure 2 The water flosser includes a water tank 2 and a driving structure 3, and the driving structure 3 drives the water in the water tank 2 to flow toward the nozzle 1. With the help of the water tank 2 and the driving structure 3, the cleaning device can work relatively independently. For example, when there is sufficient water in the water tank, the cleaning device can be used in a mobile manner. At the same time, the driving structure can increase the flow rate of the water flow and improve the cleaning effect of the water flow.
[0075] It should be noted that the term "water flow" is used in the embodiments of the present disclosure, but in fact, depending on the specific application scenario, the liquid sprayed by the water flosser may actually contain cleaning agents or medicines, etc. Therefore, the "water flow" in the embodiments of the present disclosure not only includes simple water, but may also include various cleaning ingredients or medicinal ingredients, etc.
[0076] The water flosser with the nozzle of the disclosed embodiment can clean the subgingival area of the oral cavity with the help of cavitation bubbles. Specifically, the cavitation bubbles contain oxygen, which can penetrate into the periodontal pocket along with these cavitation bubbles, eliminate the anaerobic bacteria in the periodontal pocket (such anaerobic bacteria may cause gingivitis or periodontitis), thereby alleviating the symptoms of gingivitis or periodontitis. At the same time, because the sprayed water flow can be relatively gentle, the user's punching comfort is better, and the water flow will not damage the gums, which can prevent oral diseases from the root and maintain oral health.
[0077] In summary, the disclosed embodiments provide a nozzle of a water flosser and a water flosser, wherein the nozzle has a plurality of narrowing ports between the inlet end and the outlet end, and an enlarging port between any two adjacent narrowing ports, and thus there are multiple cavitation flow channel cascades in the nozzle, and the liquid can be cavitated multiple times through the multiple cavitation flow channels, thereby generating abundant cavitation bubbles. At the same time, each time the bubbles and the liquid pass through a narrowing port, they can be fully and evenly mixed in the adjacent enlarging port and its vicinity, ensuring that the water flow is not dispersed, thereby improving the effect of the next cavitation. Finally, the liquid sprayed from the nozzle contains a large number of cavitation bubbles, and the bubbles continuously emerge from the liquid flow, so that the object to be cleaned is efficiently cleaned without damaging the object to be cleaned.
[0078] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.
[0079] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.
[0080] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A nozzle for a water flosser, characterized in that: The nozzle (1) is a tubular structure, and comprises an inlet end (11), an outlet end (12), and a hollow channel (13) connecting the inlet end (11) and the outlet end (12); The hollow channel (13) has a plurality of narrowing openings (14) located between the inlet end (11) and the outlet end (12) and an enlarged opening (15) located between any two adjacent narrowing openings (14), wherein the inner diameter of the enlarged opening (15) is greater than the inner diameters of the two adjacent narrowing openings (14).
2. The nozzle of the oral irrigator according to claim 1, characterized in that: The inner diameter of the hollow channel (13) is gradually transitioned between the successively appearing narrowing opening (14), the expanding opening (15), and the other narrowing opening (14).
3. The nozzle of the oral irrigator according to any one of claims 1 to 2, characterized in that: The inlet end (11) has a first portion (111), the inner diameter of which gradually decreases in a direction approaching the outlet end (12) until it connects with one of the narrowing ports (14).
4. The nozzle of the oral irrigator according to claim 3, characterized in that: The inner diameter of the enlarged opening (15) is equal to the maximum inner diameter of the first portion (111) of the inlet end (11).
5. The nozzle of the oral irrigator according to claim 3, characterized in that: The maximum inner diameter of the first part (111) is greater than or equal to 2 mm.
6. The nozzle of the oral irrigator according to claim 5, characterized in that: The inlet end (11) further comprises a second part (112) connected to the first part (111), the inner diameter of the second part (112) being equal to or gradually transitioning, and the inner diameter of the second part (112) being less than or equal to the maximum inner diameter of the first part (111).
7. The nozzle of the oral irrigator according to claim 3, characterized in that: The inner diameter of the outlet end (12) gradually increases from the closest narrowing opening (14) in a direction away from the narrowing opening (14).
8. The nozzle of the oral irrigator according to claim 7, characterized in that: The maximum inner diameter of the outlet end (12) is between 1 and 1.6 mm.
9. The nozzle of the oral irrigator according to claim 7, characterized in that: The maximum inner diameter of the outlet end (12) is smaller than the maximum inner diameter of the first portion (111) of the inlet end (11).
10. The nozzle of the oral irrigator according to claim 1, characterized in that: The nozzle (1) meets at least one of the following requirements: The inner diameter of the narrowing opening (14) is between 0.4 and 0.8 mm; The inner diameter of the enlarged opening (15) is greater than or equal to 2 mm.
11. The nozzle of the oral irrigator according to any one of claims 1-2 and 4-10, characterized in that: The inner diameters of the multiple narrowing openings (14) are all equal.
12. The nozzle of the oral irrigator according to any one of claims 1-2 and 4-10, characterized in that: The number of the narrowing openings (14) is more than 2, the number of the expanding openings (15) is more than 1, and the inner diameters of the plurality of expanding openings (15) are all equal.
13. A dental flosser, characterized in that: The invention comprises a nozzle of the water flosser as described in any one of claims 1 to 12.