Oral irrigator nozzle and oral irrigator

Abstract

This application provides a water flosser nozzle and a water flosser. The water flosser nozzle includes: a first pipe, a second pipe, and an adjusting cavity; the second pipe has a through hole, and the second channel and the adjusting cavity are connected through the through hole; the adjusting cavity has a second outlet and at least two first outlets, the diameters of the at least two first outlets are not the same, and the second outlet is offset relative to the second pipe; the adjusting cavity is movable relative to the second pipe in a first position and a second position; when the adjusting cavity is in the first position, one of the first outlets is opposite to the second pipe, and the diameter of the first outlet is less than or equal to the outlet diameter of the first channel, and the water flosser nozzle emits multiple streams of water; when the adjusting cavity is in the second position, another first outlet is opposite to the second pipe, and the diameter of the first outlet is greater than the outlet diameter of the first channel, and the water flosser nozzle emits a single stream of water.

Description

Technical Field

[0001] This application relates to the field of oral hygiene technology, and more specifically, to a water flosser nozzle and a water flosser. Background Technology

[0002] Most commercially available oral irrigators use pulsed water flow. To achieve higher cleaning efficiency and a gentler rinsing experience, cavitation structures are increasingly being incorporated into their designs. The energy generated by the bursting of cavitation bubbles can effectively remove plaque.

[0003] Existing oral irrigator nozzles are mostly based on the Venturi tube design. The shortcomings of this design are: (1) limited air content; (2) low cavitation degree. If a through hole is opened in the constriction section of the Venturi tube for negative pressure air intake, the water flow parameters of the oral irrigator do not always meet the condition of static pressure < external atmospheric pressure, so a stable negative pressure condition cannot be created. The water in the pipeline will spray out from the through hole, causing inconvenience. If an air pump is set up for air mixing, the structure will become very complicated, which is not conducive to manufacturing. In addition, most commercially available oral irrigators are single-flow water irrigators, which reduces the choice for users.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a water flosser nozzle and a new technical solution for water flossers.

[0006] In a first aspect, this application provides a water flosser nozzle. Along the extending direction of the water flosser nozzle, the water flosser nozzle includes a first conduit, a second conduit, and an adjustment chamber;

[0007] The first pipe has a first channel, and the second pipe has a second channel, and the first channel and the second channel are connected; the second pipe has a through hole, and the second channel and the regulating cavity are connected through the through hole;

[0008] The regulating cavity is provided with at least two first outlets and a second outlet, the diameters of the at least two first outlets are not the same, and the second outlet is offset relative to the second pipe;

[0009] The regulating cavity is capable of moving relative to the second pipe at a first position and a second position;

[0010] When the regulating cavity is in the first position, one of the at least two first outlets is disposed opposite to the second pipe, and the diameter of the first outlet is less than or equal to the outlet diameter of the first channel, and the water jet from the water flosser nozzle is ejected in multiple streams.

[0011] When the regulating cavity is in the second position, at least two of the first outlets are arranged opposite to the second pipe, and the diameter of the first outlet is larger than the outlet diameter of the first channel, and the water jet from the water flosser nozzle is a single stream of water.

[0012] Optionally, the adjusting cavity is rotatably disposed relative to the second pipe, or the adjusting cavity is movable relative to the second pipe, wherein the direction of movement is perpendicular to the extension direction of the water flosser nozzle.

[0013] Optionally, when the adjusting cavity is rotatably configured relative to the second pipe, the adjusting cavity is offset relative to the second pipe.

[0014] Optionally, the adjusting cavity includes a side wall and a top wall, the side wall and the top wall are connected, and the adjusting cavity is rotatably disposed outside the second pipe through the side wall;

[0015] The top wall portion has a second outlet;

[0016] At least two of the first outlets are provided on the top wall.

[0017] Optionally, the top wall portion is provided with a plurality of first outlets, and the plurality of first outlets are arranged in an array on the top wall portion.

[0018] Optionally, the center lines of the plurality of first outlets form a circle, and the center of the circle is offset relative to the center of the outlet of the second channel.

[0019] Optionally, the regulating cavity is provided with a shielding part to cover at least one of the two first outlets, wherein the first outlet covered by the shielding part is offset relative to the outlet of the second pipe.

[0020] Optionally, the adjustment cavity has at least two second outlets, and the at least two second outlets are symmetrically arranged.

[0021] Optionally, the second outlet is arc-shaped.

[0022] Optionally, the second channel has an inlet, the diameter of which is larger than the diameter of the outlet of the first channel.

[0023] Optionally, the second channel has an outlet, and the diameter of the outlet of the second channel is larger than the diameter of the outlet of the first channel.

[0024] Optionally, the second channel has an outlet, and the diameter of the outlet of the second channel is larger than the diameter of the outlet of the first channel.

[0025] Optionally, the inlet diameter of the second channel is less than or equal to the outlet diameter of the second channel.

[0026] Optionally, the inlet diameter of the second channel is larger than the outlet diameter of the second channel.

[0027] Secondly, embodiments of this application also provide a dental flosser. The dental flosser includes the dental flosser nozzle as described in the first aspect.

[0028] According to an embodiment of this application, a water flosser nozzle is provided. The water flosser nozzle includes an adjustment chamber, which includes a second outlet and a first outlet with an adjustable diameter. The adjustment chamber can also switch between a first position and a second position relative to a second pipe. Each time the position of the adjustment chamber is adjusted, the water flosser nozzle can eject water streams of different shapes, giving users a better and more comprehensive cleaning experience.

[0029] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0031] Figure 1 The diagram shown is a structural diagram of the water flosser nozzle provided in an embodiment of this application.

[0032] Figure 2 As shown Figure 1 Cross-section of the provided water flosser nozzle Figure 1 .

[0033] Figure 3 As shown Figure 1 Cross-section of the provided water flosser nozzle Figure 2 .

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. First pipe; 11. First channel; 110. Outlet of the first channel;

[0036] 2. Second pipe; 21. Second channel; 210. Through hole; 211. Inlet of the second channel; 212. Outlet of the second channel;

[0037] 3. Adjustment chamber; 31. First outlet; 32. Second outlet; 33. Side wall; 34. Top wall; 35. Shielding part. Detailed Implementation

[0038] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0039] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0040] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0041] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0043] The first aspect of this application provides a water flosser nozzle. (Refer to...) Figures 1-3 Along the extension direction of the water flosser nozzle, the water flosser nozzle includes a first pipe 1, a second pipe 2, and an adjustment chamber 3.

[0044] The first pipe 1 has a first channel 11, and the second pipe 2 has a second channel 21. The first channel 11 and the second channel 21 are connected. The second pipe 2 has a through hole 210, and the second channel 21 and the regulating cavity 3 are connected through the through hole 210.

[0045] The regulating cavity 3 has at least two first outlets 31 and a second outlet 32. The diameters D4 of the at least two first outlets 31 are not the same, and the second outlet 32 ​​is offset relative to the second pipe 2.

[0046] The regulating cavity 3 can move relative to the second pipe 2 in a first position and a second position.

[0047] When the regulating cavity 3 is in the first position, one of the at least two first outlets is arranged opposite to the second pipe 2, and the diameter D4 of the first outlet 31 is less than or equal to the diameter D1 of the outlet 110 of the first channel 11, and the water jet from the water flosser nozzle is multi-stream water.

[0048] When the regulating cavity 3 is in the second position, the other first outlet of at least two first outlets is arranged opposite to the second pipe 2, and the diameter D4 of the first outlet 31 is greater than the diameter D1 of the outlet 110 of the first channel 11, and the water jet from the water flosser nozzle is a single stream of water.

[0049] In this embodiment of the application, the water flosser nozzle includes a first pipe 1 and a second pipe 2. The first pipe 1 and the second pipe 2 can be an integral structure or the first pipe 1 and the second pipe 2 can be a separate structure.

[0050] When the first pipe 1 and the second pipe 2 are an integral structure, the diameter D1 of the outlet 110 of the first channel 11 in the first pipe 1 and the diameter D2 of the inlet 211 of the second channel 21 in the second pipe 2 can be the same, that is, the diameter D1 of the outlet 110 of the first channel 11 and the diameter D2 of the inlet 211 of the second channel 21 are equal.

[0051] When the first pipe 1 and the second pipe 2 are separate structures, the second pipe 2 can be fitted outside the first pipe 1. When the second pipe 2 is fitted outside the first pipe 1, the diameter D1 of the outlet 110 of the first channel 11 in the first pipe 1 and the diameter D2 of the inlet 211 of the second channel 21 in the second pipe 2 can be different. For example, the diameter D1 of the outlet 110 of the first channel 11 is smaller than the diameter D2 of the inlet 211 of the second channel 21, so that the incoming flow in the first channel 11 can be sprayed into the second channel 21.

[0052] For example, the first pipe 1 is the water outlet pipe, and the second pipe 2 is the cavitation pipe (the cavitation phenomenon formed by the water flosser nozzle is all within the second pipe 2). The extension direction of the water flosser nozzle is the direction of water flow. The end of the first pipe 1 away from the second pipe 2 can be connected to a water tank. For example, the first channel 11 has an inlet and an outlet; the inlet can be connected to the water tank, and the outlet is connected to the inlet of the second pipe 2.

[0053] In this embodiment, the water flosser nozzle further includes an adjusting cavity 3. A through hole 210 is formed on the second pipe 2, and the second channel 21 communicates with the adjusting cavity 3 through the through hole 210. For example, the adjusting cavity 3 has a chamber, and the second channel 21 communicates with the chamber of the adjusting cavity 3 through the through hole 210. In one example, the adjusting cavity 3 can be connected to the second pipe 2. When the adjusting cavity 3 is connected to the second pipe 2, the adjusting cavity 3 can move relative to the second pipe 2 at a first position and a second position. Or in another example, the adjusting cavity 3 can be connected to the first pipe 1. When the adjusting cavity 3 is connected to the first pipe 1, the adjusting cavity 3 can also move relative to the second pipe 2 at a first position and a second position.

[0054] The second pipe 2 has a through hole 210. The through hole 210 can penetrate the second pipe 2 radially, or it may not need to penetrate the radial direction of the second pipe 2. The number of through holes 210 in the second pipe 2 can be one, two or more, and those skilled in the art can adjust the number of through holes 210 according to actual needs.

[0055] In this embodiment of the application, an adjustment cavity 3 is provided outside the first pipe 1 or outside the second pipe 2. The adjustment cavity 3 has at least two first outlets 31. The diameter D4 of the at least two first outlets 31 is not the same. For example, the at least two first outlets 31 include two first outlets 31, and the diameter D4 of one first outlet 31 can be larger than the diameter D4 of the other first outlet 31.

[0056] During the switching between the first and second positions of the regulating cavity 3, different first outlets 31 are positioned opposite to the second pipe 2. For example, when the regulating cavity 3 is in the first position, one of the at least two first outlets 31 is positioned opposite to the second pipe 2, and the diameter D4 of this first outlet 31 can be larger than the diameter D4 of the other first outlet 31 positioned opposite to the second pipe 2 when the regulating cavity 3 is in the second position; or when the regulating cavity 3 is in the first position, one of the at least two first outlets 31 is positioned opposite to the second pipe 2, and the diameter D4 of this first outlet 31 can be smaller than the diameter D4 of the other first outlet 31 positioned opposite to the second pipe 2 when the regulating cavity 3 is in the second position.

[0057] The regulating chamber 3 has at least two first outlets 31. Regardless of whether the regulating chamber 3 is in the first position or the second position, one of the at least two first outlets 31 needs to be set relative to the second pipe 2. Specifically, one of the at least two first outlets 31 needs to be set relative to the outlet of the second pipe 2.

[0058] In one example, the regulating cavity 3 has multiple first outlets 31. When the regulating cavity 3 moves to the first position, one of the multiple first outlets 31 is positioned opposite to the second pipe 2. When the regulating cavity 3 moves to the second position, another of the multiple first outlets 31 (the other first outlet 31 and one of the first outlets 31 are not the same outlet) is positioned.

[0059] The regulating chamber 3 is also provided with a second outlet 32. For example, one second outlet 32 ​​or multiple second outlets 32 can be provided on the regulating chamber 3. Whether one or multiple second outlets 32 are provided on the regulating chamber 3, the second outlet 32 ​​and the second pipe 2 are offset, that is, the outlets of the second outlet 32 ​​and the second pipe 2 are not directly opposite each other. In other words, the outlets of the second outlet 32 ​​and the second pipe 2 are not connected.

[0060] Specifically, regardless of whether the adjusting cavity 3 is located outside the first pipe 1 or outside the second pipe 2, the adjusting cavity 3 can move relative to the second pipe 2 at the first position and the second position.

[0061] For example, refer to Figure 2 When the regulating chamber 3 is in the first position, the diameter D4 of the first outlet 31 opposite to the second pipe 2 is less than or equal to the diameter D1 of the outlet 110 of the first channel 11, and the water flosser nozzle sprays multiple streams of water. Specifically, when the regulating chamber 3 is in the first position, the diameter D4 of the first outlet 31 opposite to the second pipe 2 is less than or equal to the diameter D1 of the outlet 110 of the first channel 11. The smaller diameter of the first outlet 31 of the regulating chamber 3 leads to increased flow resistance, and liquid will accumulate in the second channel 21. When liquid accumulates in the second channel 21, some of the liquid in the second channel 21 will be discharged into the regulating chamber 3 through the through hole 210. The liquid in the regulating chamber 3 will then be discharged from the second outlet 32. At this time, both the first outlet 31 and the second outlet 32 ​​can drain water, and the water flosser nozzle will spray multiple streams of water, increasing the cleaning area and making it gentler.

[0062] Alternatively, the cavitation mechanism at this time can be: circulating shear combined with the disturbance of the water flow by the regulating cavity 3. For example, circulating shear can be formed in the regulating cavity 3, or in the second channel 21, or both the regulating cavity 3 and the second channel 21 can be formed.

[0063] For example, the position of the second outlet 32 ​​on the regulating cavity 3 can be defined so that the liquid in the second channel 21 is sprayed into the regulating cavity 3 through the through hole 210 and then ejected from the second outlet 32. During this process, a circulating shear can be formed in the regulating cavity 3. The vortex formed by the circulating flow is the negative pressure zone, which can form cavitation, thus making it more beneficial for oral cleaning.

[0064] For example, the shape of the second channel 21 can be defined so that when the liquid ejected from the first channel 11 passes through the second channel 21 and exits from the first outlet 31 of the regulating cavity 3, a circulating shear can be formed in the second channel 21. The vortex formed by the circulating flow is the negative pressure zone, which can form cavitation, thus making it more beneficial for oral cleaning.

[0065] It should be noted that the embodiments of this application emphasize the provision of a second outlet 32 ​​and multiple first outlets 31 with different diameters on the adjusting cavity 3, and emphasize that the setting position of the adjusting cavity 3 is adjustable. When the adjusting cavity 3 is in the first and second positions, the water flosser nozzle can emit water streams of different shapes (e.g., multiple water streams or a single water stream). As for whether a circulating flow switching is needed to further improve the cleaning effect, those skilled in the art can adaptively adjust the setting position of the second outlet 32 ​​or adjust the shape of the second channel 21 to achieve a better water flow effect from the water flosser nozzle.

[0066] For example, refer to Figure 3 When the regulating chamber 3 is in the second position, the diameter D4 of the first outlet 31 opposite to the second pipe 2 is larger than the diameter D1 of the outlet 110 of the first channel 11, and a single stream of water is ejected from the nozzle of the water flosser. Specifically, when the regulating chamber 3 is in the second position, the diameter D4 of the first outlet 31 opposite to the second pipe 2 is larger than the diameter D1 of the outlet 110 of the first channel 11. In this way, the first outlet 31 does not obstruct or disturb the water flow, and only the first outlet 31 discharges water. The water flow is single-column, concentrated, and powerful.

[0067] In addition, the cavitation mechanism at this time is negative pressure gas mixing. For example, when the pulsed water flow is ejected from the first channel 11 and the incoming flow passes through the second channel 21 at high speed, the static pressure formed in the second channel 21 is less than the atmospheric pressure, which will cause external air to be sucked in (for example, external air can be drawn into the regulating cavity 3 through the second outlet 32), and then enter the second channel 21 through the through hole 210. The gas is carried out by the high-speed water flow.

[0068] Regardless of the shape of the second channel 21, the first outlet 31 does not obstruct the water flow. When the pulsed water flows through the second channel 21 at high speed, the second channel 21 is under negative pressure, meaning the pressure inside the second channel 21 is lower than the external atmospheric pressure. Through the through hole 210, outside air can be introduced into the second channel 21, increasing the gas volume fraction of the liquid inside the second channel 21. This results in a higher degree of cavitation, which is more conducive to the formation of cavitation phenomena in the second pipe 2. The abundant bubbles formed after the cavitation water flow can better remove plaque from teeth and clean the oral cavity.

[0069] Therefore, in this embodiment of the application, a water flosser nozzle is provided. The water flosser nozzle includes an adjustment chamber 3, which includes a second outlet 32 ​​and a plurality of first outlets 31 with different diameters. The adjustment chamber 3 can also switch between a first position and a second position relative to the second pipe 2. Each time the position of the adjustment chamber 3 is adjusted, the water flosser nozzle can emit water streams of different shapes, giving users a better cleaning experience.

[0070] In one embodiment, the adjusting cavity 3 is rotatably disposed relative to the second pipe 2, or the adjusting cavity 3 is movable relative to the second pipe 2, wherein the direction of movement is perpendicular to the extension direction of the water flosser nozzle.

[0071] In this embodiment, the movement mode of the adjustment cavity 3 relative to the second pipe 2 is limited. The adjustment cavity 3 can be rotated relative to the second pipe 2 or can be moved relative to the second pipe 2, so that the adjustment cavity 3 can switch between a first position and a second position.

[0072] For example, the adjusting cavity 3 can be rotated along the circumferential direction of the second pipe 2, and its position can be adjusted by rotation. Alternatively, the adjusting cavity 3 can be moved along the radial direction of the second pipe 2, and its position can be adjusted by movement.

[0073] For example, a raised portion can be provided around the second pipe 2 in the circumferential direction, and a recessed groove can be provided inside the adjusting cavity 3. The structure of the recessed groove is adapted to the structure of the raised portion. The adjusting cavity 3 can rotate around the second pipe 2 in the circumferential direction by the cooperation of the recessed groove and the raised portion, so as to adjust the setting position of the adjusting cavity 3. It should be noted that the embodiments of this application include, but are not limited to, the method of using the raised portion and the recessed groove to make the adjusting cavity 3 rotate relative to the second pipe 2.

[0074] For example, a slider can be provided on the second pipe 2, and a slide rail can be provided inside the adjusting cavity 3, so that the adjusting cavity 3 can be moved by sliding to adjust the setting position of the adjusting cavity 3. It should be noted that the embodiments of this application include, but are not limited to, the movement of the adjusting cavity 3 relative to the second pipe 2 by means of the cooperation of the slide rail and the slider.

[0075] In one embodiment, when the adjusting cavity 3 is rotatably disposed relative to the second pipe 2, the adjusting cavity 3 is biased relative to the second pipe 2.

[0076] In this embodiment, the position of the adjusting cavity 3 relative to the second pipe 2 is defined. When the adjusting cavity 3 rotates relative to the second pipe 2, the adjusting cavity 3 is offset relative to the second pipe 2, that is, the center of the adjusting cavity 3 and the center of the second pipe 2 are eccentrically set. In this way, during the rotation of the adjusting cavity 3 relative to the second pipe 2, the first outlet 31 of different diameters can be opposite to the second pipe 2.

[0077] In one embodiment, refer to Figures 1-3The regulating cavity 3 includes a side wall portion 33 and a top wall portion 34, which are connected. The regulating cavity 3 is rotatably disposed outside the second pipe 2 via the side wall portion 33. The top wall portion 34 has a second outlet 32.

[0078] In this embodiment, the adjusting cavity 3 includes a side wall portion 33 and a top wall portion 34, which are connected together. For example, the side wall portion 33 and the top wall portion 34 can be integrally formed to form an adjusting cavity 3 with one open end. The adjusting cavity 3 is sleeved on the outside of the second pipe 2 through this one end, and the adjusting cavity 3 is rotatably disposed on the outside of the second pipe 2 through the side wall portion 33. That is, the adjusting cavity 3 is disposed on the outside of the second pipe 2 through the side wall portion 33, and the side wall portion 33 is rotatably connected to the second pipe 2, so that the adjusting cavity 3 can rotate along the circumferential direction of the second pipe 2.

[0079] As the adjusting cavity 3 rotates along the circumferential direction of the second pipe 2, its position in the second pipe 2 is adjusted.

[0080] For example, refer to Figure 2 During the process of the adjusting cavity 3 rotating clockwise or counterclockwise along the circumferential direction of the second pipe 2, the adjusting cavity 3 rotates to the first position. At this time, the diameter D4 of the first outlet 31, which is set on the top wall 34 and is opposite to the outlet of the second pipe 2, is less than or equal to the diameter D1 of the outlet 110 of the first channel 11. Both the first outlet 31 and the second outlet 32, which are opposite to the outlet of the second pipe 2, can eject water flow, and the water flosser nozzle ejects multiple water flow.

[0081] For example, refer to Figure 3 During the process of the adjusting cavity 3 rotating clockwise or counterclockwise along the circumferential direction of the second pipe 2, the adjusting cavity 3 rotates to the second position. At this time, the diameter D4 of the first outlet 31, which is opened on the top wall 34 and is set opposite to the outlet of the second pipe 2, is greater than the diameter D1 of the outlet 110 of the first channel 11. At this time, only the first outlet 31, which is opposite to the outlet of the second pipe 2, can eject water flow, and the water jet nozzle ejects a single stream of water.

[0082] In this embodiment, the top wall 34 of the regulating cavity 3 is provided with a plurality of first outlets 31. During the process of the regulating cavity 3 rotating along the circumferential direction of the second pipe 2, the diameter D4 of the first outlet 31 which is opposite to the outlet of the second pipe 2 is variable.

[0083] For example, as the regulating cavity 3 rotates clockwise along the circumferential direction of the second pipe 2, the diameter D4 of the first outlet 31, which is opposite to the outlet of the second pipe 2, can gradually increase. For example, multiple first outlets can be opened on the top wall 34 of the regulating cavity 3, and the diameters of the multiple first outlets can change in a regular manner. This makes it easier for users to select first outlets 31 with different diameters to be opposite to the outlet of the second pipe 2.

[0084] Alternatively, for example, as the regulating chamber 3 rotates counterclockwise along the circumferential direction of the second pipe 2, the diameter D4 of the first outlet 31, which is opposite to the outlet of the second pipe 2, gradually increases. For example, multiple first outlets are opened on the top wall 34 of the regulating chamber 3, and the diameters of the multiple first outlets change in a regular manner. This makes it easier for users to select first outlets 31 with different diameters to be opposite the outlet of the second pipe 2.

[0085] Multiple first outlets 31 are provided on the variable part 34. Regardless of whether the adjusting cavity 3 is rotated to the first position or the second position, one of the multiple first outlets 31 always needs to be set opposite to the outlet of the second pipe 2.

[0086] In one example, the second outlet 32 ​​can be located on the side wall 33 of the regulating cavity 3, or on the top wall 34 of the regulating cavity 3, or on both the side wall 33 and the top wall 34 of the regulating cavity 3. When the second outlet 32 ​​is located on the top wall 34 of the regulating cavity 3, after liquid accumulates in the second channel 21, the liquid exits into the regulating cavity 3 through the through hole 210 and is then ejected through the second outlet 32, creating a circulating shear flow within the regulating cavity 3.

[0087] Therefore, in this embodiment, the adjustment cavity 3 is rotatably disposed outside the second pipe 2 via the side wall portion 33, so that the setting position of the adjustment cavity 3 can be switched between the first position and the second position.

[0088] Optionally, a third connecting part is provided outside the second pipe 2, and a fourth connecting part is provided on the side wall part 33. The side wall part 33 is rotatably provided outside the second pipe 2 through the third connecting part and the fourth connecting part.

[0089] In one embodiment, refer to Figure 2 and Figure 3 The top wall portion 34 is provided with a plurality of first outlets 31, which are arranged in an array on the top wall portion 34.

[0090] In this embodiment, multiple first outlets 31 are provided on the top wall portion 34. The multiple first outlets 31 can be arranged in a square array or in a circular array on the top wall portion 34. When the multiple first outlets 31 are arranged in an array on the top wall portion 34, the diameter D4 of the multiple first outlets 31 is arranged according to a preset pattern, which makes it easier for users to select first outlets 31 with different diameters to be opposite to the outlet of the second pipe 2.

[0091] In one embodiment, the center line connecting the plurality of first outlets 31 forms a circle, the center of which is eccentrically positioned relative to the center of the outlet of the second channel 21.

[0092] In this embodiment, the top wall 34 of the regulating cavity 3 has multiple first outlets 31, which are composed of multiple through holes 210 of different diameters. The multiple through holes 210 of different diameters can be arranged in a circular array so that the center line connecting the multiple first outlets 31 forms a circle. When the center line connecting the multiple first outlets 31 forms a circle, the center of the circle is off-center from the center of the outlet of the second channel 21. In this way, during the process of the regulating cavity 3 rotating one revolution relative to the second channel 21 along the circumferential direction of the second channel 21, each first outlet 31 can be opposite to the outlet of the second channel 21.

[0093] In one embodiment, refer to Figure 3 and Figure 2 The regulating cavity 3 is provided with a shielding part 35, which covers at least one of the two first outlets 31, wherein the first outlet 31 covered by the shielding part 35 is offset relative to the outlet of the second pipe 2.

[0094] In this embodiment, a shielding part 35 is provided inside the regulating cavity 3 to shield the first outlet 31 that is not opposite to the outlet of the second channel 21. In this way, no matter whether the regulating cavity 3 is in the first position or the second position, the liquid in the first channel 11 cannot be sprayed out from the first outlet 31 that is not opposite to the outlet of the second channel 21. This improves the overall sealing of the regulating cavity 3 and avoids water leakage from the water flosser nozzle.

[0095] For example, the shielding part 35 is an elastic member that connects the second pipe 2 and the top wall part 34 of the regulating cavity 3. The elastic member covers the first outlet 31 that is not opposite to the outlet of the second pipe 2. In the event of liquid accumulation in the second channel 21, the obstructed liquid cannot flow between the outlet of the second channel 21 and the first outlet 31 that is opposite to the outlet of the second channel 21, or even flow out from other outlets that are not directly opposite the second channel 21. The liquid will accumulate in the second channel 21, be discharged into the regulating cavity 3 through the through hole 210, and then be discharged from the second outlet 32.

[0096] In one embodiment, the adjustment cavity 3 has at least two second outlets 32, and the at least two second outlets 32 are symmetrically arranged.

[0097] In this embodiment, the regulating cavity 3 has at least two second outlets 32, which are symmetrically arranged. This allows the liquid to be sprayed more evenly when it is ejected from the second outlets 32, thus improving the user experience.

[0098] In one embodiment, the second outlet 32 ​​is arc-shaped.

[0099] In this embodiment, the shape of the second outlet 32 ​​is defined as an arc-shaped structure, which helps to control the direction of liquid ejection and is more conducive to comprehensive cleaning of the oral cavity.

[0100] For example, four second outlets 32 are provided on the top wall 34 of the regulating cavity 3. The arc-shaped curvatures of two oppositely arranged second outlets 32 are opposite, meaning that the four second outlets 32 can enclose and form a circular structure. After the liquid in the regulating cavity 3 is ejected through the four second outlets 32, it combines with the water flow ejected from the first outlet 31 to perform all-round cleaning of the oral cavity. When the four second outlets 32 enclose and form a circular structure, multiple first outlets 31 are disposed within this circular structure.

[0101] In one embodiment, refer to Figure 2 and Figure 3 The second channel 21 has an inlet, and the diameter D2 of the inlet 211 of the second channel 21 is larger than the diameter D1 of the outlet 110 of the first channel 11.

[0102] In this embodiment, the diameter D1 of the outlet 110 of the first channel 11 and the diameter D2 of the inlet 211 of the second channel 21 are limited to avoid increased water flow loss in the nozzle pipe of the water flosser.

[0103] For example, as explained above, when the first channel 11 in the first pipe 1 is connected to the second channel 21 in the second pipe 2, and the first pipe 1 serves as the incoming flow path, the diameter D1 of the outlet 110 of the first channel 11 can be less than or equal to the diameter D2 of the inlet 211 of the second channel 21. If the diameter D1 of the outlet 110 of the first channel 11 is greater than the diameter of the inlet in the second channel 21, the incoming flow in the first channel 11 cannot fully enter the second channel 21, resulting in wasted water flow and increasing the likelihood of leaks in the water flosser nozzle. Therefore, under normal circumstances, the diameter D1 of the outlet 110 of the first channel 11 should be less than or equal to the diameter D2 of the inlet 211 of the second channel 21.

[0104] In this embodiment, the diameter D1 of the outlet 110 of the first channel 11 is specifically limited to be smaller than the diameter D2 of the inlet 211 of the second channel 21. When the diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, liquid will accumulate in the second channel 21 regardless of the position of the regulating cavity 3. The liquid will flow into the regulating cavity 3 through the through hole 210, increasing the flow loss in the pipeline and making the discharged liquid very unstable. Therefore, in this embodiment, the diameter D1 of the outlet 110 of the first channel 11 is specifically limited to be smaller than the diameter D2 of the inlet 211 of the second channel 21 to ensure stable water flow in the water flosser nozzle.

[0105] In one embodiment, refer to Figure 2 and Figure 3 The second channel 21 has an outlet, and the diameter D3 of the outlet 212 of the second channel 21 is larger than the diameter D1 of the outlet 110 of the first channel 11.

[0106] In this embodiment, the second channel 21 has an outlet, and the diameter D3 of the outlet 212 of the second channel 21 is larger than the diameter D1 of the outlet 110 of the first channel 11. When the diameter D3 of the outlet 212 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, liquid will accumulate in the second channel 21 regardless of the position of the regulating cavity 3. The liquid will flow into the regulating cavity 3 through the through hole 210, increasing the flow loss in the pipeline and making the discharged liquid very unstable. Therefore, in this embodiment, it is specifically limited that the diameter D1 of the outlet 110 of the first channel 11 is smaller than the diameter D2 of the inlet 211 of the second channel 21 to ensure stable water flow in the water flosser nozzle.

[0107] In one embodiment, refer to Figure 2 and Figure 3 The second channel 21 has an outlet, and the diameter D3 of the outlet 212 of the second channel 21 is larger than the diameter D1 of the outlet 110 of the first channel 11.

[0108] In this embodiment, the second channel 21 has an outlet, and the diameter D3 of the outlet 212 of the second channel 21 is larger than the diameter D1 of the outlet 110 of the first channel 11. When the diameter D3 of the outlet 212 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, liquid will accumulate in the second channel 21 regardless of the position of the regulating cavity 3. The liquid will flow into the regulating cavity 3 through the through hole 210, increasing the flow loss in the pipeline and making the discharged liquid very unstable. Therefore, in this embodiment, it is specifically limited that the diameter D1 of the outlet 110 of the first channel 11 is smaller than the diameter D2 of the inlet 211 of the second channel 21 to ensure stable water flow in the water flosser nozzle.

[0109] Therefore, in this embodiment, when the diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, and / or when the diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, the water flow in the nozzle of the water flosser will be unstable.

[0110] Optionally, in this embodiment, when the regulating cavity 3 is in the second position, the diameter D4 of the first outlet 31 is greater than the diameter D1 of the outlet 110 of the first channel 11, and the second channel 21 has an outlet, and the diameter D3 of the outlet 212 of the second channel 21 is greater than the diameter D1 of the outlet 110 of the first channel 11, when the regulating cavity 3 is in the second position, the diameter D4 of the first outlet 31 is greater than the diameter D3 of the outlet 212 of the second channel 21, and a single stream of water is ejected from the nozzle of the water flosser.

[0111] In one embodiment, the diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter D3 of the outlet 212 of the second channel 21.

[0112] In this embodiment, the second channel 21 has an outlet 212 and an inlet 211. The diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter D3 of the outlet 212 of the second channel 21. Combined with the condition that the diameter D4 of the first outlet 31 is less than or equal to the diameter D1 of the outlet 110 of the first channel 11 when the regulating cavity 3 is in the first position, the water flosser nozzle can eject multiple streams of water. However, since the shape of the second channel 21 does not meet the conditions for forming a circulating shear, a circulating shear cannot be formed in the second channel 21 at this time.

[0113] Optionally, when the diameter D2 of the inlet 211 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, and / or when the diameter D3 of the outlet 212 of the second channel 21 is less than or equal to the diameter of the outlet in the first channel 11, the diameter D2 of the inlet 211 of the second channel 21 can be greater than, equal to or less than the diameter D2 of the inlet 211 of the second channel 21.

[0114] In one embodiment, refer to Figure 3 and Figure 2 The diameter D2 of the inlet 211 of the second channel 21 is larger than the diameter D3 of the outlet 212 of the second channel 21.

[0115] In this embodiment, the diameter D2 of the inlet 211 of the second channel 21 is larger than the diameter D3 of the outlet 212 of the second channel 21, that is, the diameter of the second channel 21 is gradually decreasing in the extension direction of the water flosser nozzle.

[0116] Thus, the diameter D2 of the inlet 211 of the second channel 21 is greater than the diameter D3 of the outlet 212 of the second channel 21. Combined with the condition that the diameter D4 of the first outlet 31 is less than or equal to the diameter D1 of the outlet 110 of the first channel 11 when the regulating cavity 3 is in the first position, the water flosser nozzle can eject multiple streams of water and form a circulating shear within the second channel 21.

[0117] Secondly, embodiments of this application also provide a dental flosser. The dental flosser includes the dental flosser nozzle as described in the first aspect.

[0118] The second aspect of this application also provides a water flosser, in which a nozzle is applied. After adjusting the setting position of the cavity 3, the water flosser can emit water streams of different shapes, giving users a better and more comprehensive cleaning experience.

[0119] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0120] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. An oral irrigator nozzle, characterized by, Along the extension direction of the water flosser nozzle, the water flosser nozzle includes a first pipe (1), a second pipe (2), and an adjustment chamber (3). The first pipe (1) has a first channel (11), and the second pipe (2) has a second channel (21). The first channel (11) and the second channel (21) are connected. A through hole (210) is provided on the second pipe (2). The second channel (21) and the regulating cavity (3) are connected through the through hole (210). The inlet diameter of the second channel (21) is larger than the outlet diameter of the first channel (11), and the outlet diameter of the second channel (21) is larger than the outlet diameter of the first channel (11). The regulating cavity (3) is provided with at least two first outlets (31) and a second outlet (32), the diameters of the at least two first outlets (31) are not the same, and the second outlet (32) is offset relative to the second pipe (2); The regulating cavity (3) is capable of moving relative to the second pipe (2) in a first position and a second position; When the regulating cavity (3) is in the first position, one of the at least two first outlets is arranged opposite to the second pipe (2), and the diameter of the first outlet (31) is less than or equal to the outlet diameter of the first channel (11), and the water jet from the water jet nozzle is ejected in multiple streams. When the regulating cavity (3) is in the second position, at least one of the two first outlets is arranged opposite to the second pipe (2), and the diameter of the first outlet (31) is greater than the outlet diameter of the first channel (11), and the water jet from the water jet nozzle is a single stream of water.

2. The oral irrigator nozzle of claim 1, wherein, The adjusting cavity (3) is rotatably disposed relative to the second pipe (2), or the adjusting cavity (3) is movable relative to the second pipe (2), wherein the direction of movement is perpendicular to the extension direction of the water flosser nozzle.

3. The water flosser nozzle according to claim 2, characterized in that, When the adjustment cavity (3) is rotatably disposed relative to the second pipe (2), the adjustment cavity is offset relative to the second pipe (2).

4. The water flosser nozzle according to claim 1, characterized in that, The regulating cavity (3) includes a side wall portion (33) and a top wall portion (34), the side wall portion (33) and the top wall portion (34) are connected, and the regulating cavity (3) is rotatably disposed outside the second pipe (2) through the side wall portion (33); The top wall portion (34) has a second outlet (32); At least two of the first outlets (31) are provided on the top wall portion (34).

5. The water flosser nozzle according to claim 4, characterized in that, The top wall portion (34) has multiple first outlets (31), which are arranged in an array on the top wall portion (34).

6. The water flosser nozzle according to claim 5, characterized in that, The center lines of multiple first outlets (31) form a circle, and the center of the circle is set off-center from the center of the outlet of the second channel (21).

7. The water flosser nozzle according to claim 1, characterized in that, The regulating cavity (3) is provided with a shielding part (35) to cover at least one of the two first outlets (31), wherein the first outlet (31) covered by the shielding part (35) is offset relative to the outlet of the second pipe (2).

8. The water flosser nozzle according to claim 1, characterized in that, The regulating cavity (3) has at least two second outlets (32), and the at least two second outlets (32) are symmetrically arranged.

9. The water flosser nozzle according to claim 1, characterized in that, The second outlet (32) is arc-shaped.

10. The water flosser nozzle according to any one of claims 1-9, characterized in that, The diameter of the inlet of the second channel (21) is less than or equal to the diameter of the outlet of the second channel (21).

11. The water flosser nozzle according to any one of claims 1-9, characterized in that, The inlet diameter of the second channel (21) is larger than the outlet diameter of the second channel (21).

12. A dental flosser, characterized in that, The oral irrigator includes an oral irrigator nozzle as described in any one of claims 1-11.

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