Nozzle structure of oral irrigator and oral irrigator

Abstract

The utility model relates to a water pick nozzle structure and a water pick. The water pick nozzle structure is provided with a first flow channel, a second flow channel and a third flow channel, the first flow channel is communicated with the third flow channel through the second flow channel, and the third flow channel is provided with a water outlet; a water outlet of the second flow channel is located in the side wall of the third flow channel, and the axis of the water outlet of the second flow channel does not intersect with the axis of the third flow channel, so that water flow enters the third flow channel from the water outlet of the second flow channel to form spiral water flow. According to the scheme, spiral water flow can be generated for flushing, and comfort is improved.

Description

Technical Field

[0001] The present application relates to the technical field of oral care devices, and in particular to a water flosser nozzle structure and a water flosser. Background Art

[0002] The water flosser is an auxiliary tool for cleaning the oral cavity, which uses pulsed water flow to clean the teeth and the gaps between teeth. In the related art, the water flosser has sufficient cleaning power when using a standard nozzle to flush the gaps between teeth, but the strong impact force often causes bleeding gums for beginners and those with sensitive gums, and the comfort is poor. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related art, the present application provides a water flosser nozzle structure and a water flosser, which can generate a spiral water flow for flushing and improve comfort.

[0004] A first aspect of the present application provides a water flosser nozzle structure, which has a first flow channel, a second flow channel and a third flow channel, the first flow channel is connected to the third flow channel through the second flow channel, and the third flow channel has a water outlet; the water outlet of the second flow channel is located on the side wall of the third flow channel, and the axis of the water outlet of the second flow channel does not intersect with the axis of the third flow channel, so that water flows into the third flow channel from the water outlet of the second flow channel in a spiral water flow.

[0005] Furthermore, the first flow channel and the third flow channel are both arranged along the axial direction of the oral irrigator nozzle structure, and the second flow channel includes a radial flow channel arranged outside the third flow channel, one end of the radial flow channel is connected to the first flow channel, and the other end of the radial flow channel is connected to the third flow channel.

[0006] Furthermore, the radial flow channel extends obliquely upward, so that water flows obliquely upward from the water inlet of the radial flow channel to the water outlet of the radial flow channel and then enters the third flow channel.

[0007] Furthermore, the distance between the axis of the radial flow channel and the axis of the third flow channel is greater than or equal to 1 / 3 of the radius of the third flow channel.

[0008] Furthermore, the diameter of the radial flow channel is smaller than the diameter of the third flow channel.

[0009] Furthermore, the ratio of the diameter of the radial flow channel to the diameter of the third flow channel is 1 / 3-2 / 3.

[0010] Furthermore, the boundary of the radial flow channel is located outside the boundary of the third flow channel or is tangent to the boundary of the third flow channel.

[0011] Furthermore, there are a plurality of radial flow channels, and the plurality of radial flow channels are arranged at intervals around the circumference of the third flow channel;

[0012] The water outlets of each radial flow channel make the water flow spiral in the same direction.

[0013] Furthermore, the water outlets of the radial flow channels are on the same plane, and / or the water outlets of the radial flow channels have the same inclination angle.

[0014] Furthermore, the bottom end of the third flow channel is located below the water outlet of the second flow channel.

[0015] Furthermore, the distance between the bottom end of the third flow channel and the edge of the water outlet of the second flow channel is no more than 5 mm.

[0016] Furthermore, the bottom end of the third flow channel is in a concave curved shape.

[0017] Furthermore, the above-mentioned oral irrigator nozzle structure includes: a nozzle core and a nozzle pipe, the nozzle pipe has the first flow channel, the second flow channel and the third flow channel are arranged on the nozzle core, the nozzle sleeve is arranged on one end of the nozzle core, and the other end of the nozzle core is located outside the nozzle pipe.

[0018] Further, the nozzle core comprises a core and a nozzle column arranged at one end of the core, the core is located in the nozzle pipe, and one end of the nozzle column away from the core is located outside the nozzle pipe;

[0019] The third flow channel extends from the core portion along the axial direction of the nozzle column and penetrates the nozzle column, and the second flow channel is provided in the core portion.

[0020] Furthermore, the second flow channel includes a radial flow channel and a side flow channel, the side flow channel is arranged on the side wall of the core and extends along the axial direction of the core, one end of the radial flow channel is connected to the side flow channel, the other end of the radial flow channel is connected to the third flow channel, and the first flow channel is connected to the side flow channel.

[0021] A second aspect of the present application provides an oral irrigator, comprising: an oral irrigator nozzle structure as described in any one of the above items.

[0022] The technical solution provided by the present application may include the following beneficial effects: the first flow channel is connected with the third flow channel through the second flow channel, the water flow of the first flow channel enters the third flow channel after passing through the second flow channel and is sprayed out from the water outlet of the third flow channel to clean the user's mouth, the water outlet of the second flow channel is located on the side wall of the third flow channel, the water flow of the second flow channel enters the third flow channel from the side wall of the third flow channel, the axis of the water outlet of the second flow channel does not intersect with the axis of the third flow channel, so that the water flow enters the third flow channel from the water outlet of the second flow channel in the form of a spiral water flow, and the spiral water flow will be umbrella-shaped when sprayed out from the water outlet of the third flow channel, which has less impact on the user's mouth, can clean the residue and dental plaque on the periodontal surface, thereby reducing the risk of consumers' gingival bleeding due to high impact force when flushing their teeth, thereby improving comfort.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0025] Figure 1 is a cross-sectional schematic diagram of the structure of the nozzle of the water flosser shown in the embodiment of the present application;

[0026] Figure 2 is another cross-sectional schematic diagram of the structure of the oral irrigator nozzle shown in the embodiment of the present application;

[0027] Figure 3 is a schematic cross-sectional view of a nozzle structure of a water flosser shown in an embodiment of the present application from a top view;

[0028] Figure 4 is a schematic structural diagram of a water flosser nozzle structure shown in an embodiment of the present application;

[0029] Figure 5 It is a schematic diagram of the structure of the nozzle core shown in the embodiment of the present application.

[0030] Reference numerals:

[0031] 1-nozzle, 11-accommodating chamber, 12-first tube body, 122-first flow channel, 123-limiting groove, 13-second tube body;

[0032] 2-nozzle core, 21-core, 22-nozzle column, 23-second flow channel, 231-radial flow channel, 232-side flow channel, 24-third flow channel, 25-water channel, 26-fourth flow channel;

[0033] 3-Elastic part, 4-Silicone head. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0035] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] The water flosser is an auxiliary tool for cleaning the oral cavity, which uses pulsed water flow to clean the teeth and the gaps between teeth. In the related art, the water flosser has sufficient cleaning power when using a standard nozzle to flush the gaps between teeth, but the strong impact force often causes bleeding gums for beginners and those with sensitive gums, and the comfort is poor.

[0039] In response to the above-mentioned problems, the embodiments of the present application provide a water flosser nozzle structure and a water flosser, which can generate a spiral water flow for flushing and improve comfort.

[0040] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0041] like Figure 1 and Figure 3 As shown, an embodiment of the present application provides a water flosser nozzle structure, which has a first flow channel 122, a second flow channel 23 and a third flow channel 24. The first flow channel 122 is connected to the third flow channel 24 through the second flow channel 23, and the third flow channel 24 has a water outlet; the water outlet of the second flow channel 23 is located on the side wall of the third flow channel 24, and the axis of the water outlet of the second flow channel 23 does not intersect with the axis of the third flow channel 24, so that the water flows into the third flow channel 24 from the water outlet of the second flow channel 23 in a spiral water flow.

[0042] Based on the above scheme, the first flow channel 122 is connected with the third flow channel 24 through the second flow channel 23. The water flow of the first flow channel 122 enters the third flow channel 24 after passing through the second flow channel 23 and is ejected from the water outlet of the third flow channel 24 to clean the user's mouth. The water outlet of the second flow channel 23 is located on the side wall of the third flow channel 24. The water flow of the second flow channel 23 enters the third flow channel 24 from the side wall of the third flow channel 24. The axis of the water outlet of the second flow channel 23 does not intersect with the axis of the third flow channel 24, so that the water flow enters the third flow channel 24 from the water outlet of the second flow channel 23 in a spiral water flow. The spiral water flow has centripetal force and will be umbrella-shaped when ejected from the water outlet of the third flow channel 24. The impact force on the user's mouth is small, and the residue and dental plaque on the periodontal surface can be cleaned, thereby reducing the risk of bleeding gums due to large impact force when consumers flush their teeth, thereby improving comfort. Specifically, if Figure 1 As shown, water flows upward from the first flow channel 122, the water outlet of the third flow channel 24 is located at the upper end of the oral irrigator nozzle structure, and the water outlet of the second flow channel 23 is close to the lower end of the third flow channel 24. The water flow entering the third flow channel 24 from the second flow channel 23 flows in a spiral from bottom to top in the third flow channel 24.

[0043] In some embodiments, Figure 1 and Figure 3 As shown, the first flow channel 122 and the third flow channel 24 are both arranged along the axial direction of the oral irrigator nozzle structure, and the second flow channel 23 includes a radial flow channel 231 arranged outside the third flow channel 24, one end of the radial flow channel 231 is connected to the first flow channel 122, and the other end of the radial flow channel 231 is connected to the third flow channel 24. Specifically, the water outlet of the radial flow channel 231 is located on the side wall of the third flow channel 24, and the axis of the radial flow channel 231 does not intersect with the axis of the third flow channel 24. The water flows from the radial flow channel 231 toward the direction of the axis of the third flow channel 24, so that the water flows upward along the wall of the third flow channel 24 in a rotating manner to form a spiral water flow.

[0044] In some embodiments, the radial flow channel 231 extends obliquely upward, so that the water flow extends obliquely upward from the water inlet of the radial flow channel 231 to the water outlet of the radial flow channel 231 and then enters the third flow channel 24. Specifically, the radial flow channel 231 extends obliquely upward, so that the water inlet and the water outlet of the radial flow channel 231 are spaced apart in the axial direction, and the water inlet of the radial flow channel 231 is located below the water outlet, so that the kinetic energy loss can be reduced compared with the radial flow channel 231 arranged horizontally.

[0045] In some embodiments, the distance between the axis of the radial flow channel 231 and the axis of the third flow channel 24 is greater than or equal to 1 / 3 of the radius of the third flow channel 24, thereby improving the spiral effect on the spiral water flow.

[0046] In some embodiments, the diameter of the radial flow channel 231 is smaller than the diameter of the third flow channel 24 to facilitate the formation of a spiral water flow in the third flow channel 24. If the diameter of the radial flow channel 231 is larger than the diameter of the third flow channel 24, the flow rate of the water entering the third flow channel 24 from the radial flow channel 231 is large, and it is not easy to form a water flow.

[0047] In some embodiments, the ratio of the diameter of the radial flow channel 231 to the diameter of the third flow channel 24 is 1 / 3-2 / 3. If the ratio is too small, the third flow channel 24 is not easy to form a continuous stream of water, and if the ratio is too large, it is not easy to form a spiral water flow. Therefore, the ratio of the diameter of the radial flow channel 231 to the diameter of the third flow channel 24 is 1 / 3-2 / 3 to ensure a better spiral water flow effect. Optionally, the diameter of the radial flow channel 231 is 0.3-0.6 mm.

[0048] In some embodiments, the boundary of the radial flow channel 231 is located outside the boundary of the third flow channel 24 or is tangent to the boundary of the third flow channel 24, so that the spiral effect is stronger. Figure 3 As shown, the boundary of the radial flow channel 231 is outside the boundary of the third flow channel 24, so that the water flow has a certain rotation flow before entering the third flow channel 24 from the outlet of the radial flow channel 231, and the rotation is further strengthened after entering the third flow channel 24. When the boundary of the radial flow channel 231 is tangent to the boundary of the third flow channel 24, the water flow enters the third flow channel 24 from the outlet of the radial flow channel 231 and moves along the wall of the third flow channel 24. The water flow is subjected to a certain centripetal force, thereby generating a spiral water flow.

[0049] In some embodiments, there are multiple radial flow channels 231, and the multiple radial flow channels 231 are arranged at intervals around the circumference of the third flow channel 24; the water outlets of each radial flow channel 231 make the water flow spiral in the same direction. In this way, the spiral effect of the water flow in the third flow channel 24 can be enhanced by using multiple radial flow channels 231 that make the water flow spiral in the same direction in the third flow channel 24. Figure 3As shown, in this embodiment, there are three radial flow channels 231 arranged at equal intervals, so that the water flow in the third flow channel 24 spirals in the clockwise direction.

[0050] In some embodiments, the outlets of the radial channels 231 are on the same plane, and / or the outlets of the radial channels 231 have the same inclination angle. Figure 3 As shown, when the water outlets of the radial channels 231 are on the same plane, the water flows from the water outlets of the multiple radial channels 231 will converge and rotate after entering the third channel 24, thereby enhancing the spiral effect of the water flow. When the inclination angles of the water outlets of the radial channels 231 are consistent, the water flows from the water outlets of the radial channels 231 enter the third channel 24 at the same angle, that is, each water flow ejected from the water outlet of each radial channel 231 rotates in the same manner in the third channel 24, and the spiral effect of the water flow can be enhanced after multiple streams are superimposed.

[0051] In some embodiments, Figure 1 As shown, the bottom end of the third flow channel 24 is located below the water outlet of the second flow channel 23. In this way, the portion of the third flow channel 24 located below the water outlet of the second flow channel 23 can allow multiple colliding water flows to converge here, avoiding a greater impact on the spiral water flow and ensuring the spiral effect of the water flow.

[0052] Optionally, the distance between the bottom end of the third flow channel 24 and the edge of the water outlet of the second flow channel 23 is not greater than 5 mm to ensure the spiral effect of the water flow. If the part of the third flow channel 24 located below the water outlet of the second flow channel 23 is too long, the spiral effect will be weakened.

[0053] In some embodiments, the bottom end of the third flow channel 24 is in a concave curved surface shape. The concave curved surface shape of the bottom end has a guiding effect on the spiral water flow and can reduce the energy loss when the water flow rotates.

[0054] In some embodiments, Figures 1 to 5 As shown, the structure of the oral irrigator nozzle includes a nozzle core 2 and a nozzle tube 1. The nozzle tube 1 has a first flow channel 122. The second flow channel 23 and the third flow channel 24 are arranged on the nozzle core 2. The nozzle tube 1 is sleeved on one end of the nozzle core 2, and the other end of the nozzle core 2 is located outside the nozzle tube 1.

[0055] Specifically, the nozzle core 2 is located at one end outside the nozzle tube 1 and is used to extend into the user's oral cavity for washing. The nozzle core 2 is slidably connected to the nozzle tube 1, so that the nozzle core 2 can be telescopically moved relative to the nozzle tube 1 between a first extreme position and a second extreme position; specifically, Figure 1 The middle nozzle core 2 is in a state of extending to the first limit position relative to the nozzle 1. Figure 2The middle nozzle core 2 is in a state of being retracted to the second extreme position relative to the nozzle pipe 1; a limit groove 123 is provided in the nozzle pipe 1, and an elastic member 3 is provided between the limit groove 123 and the nozzle core 2. When the nozzle core 2 shrinks and moves relative to the nozzle pipe 1, the elastic member 3 is compressed, and the elastic member 3 has a force on the nozzle core 2 to make the nozzle core 2 extend to the first extreme position relative to the nozzle pipe 1.

[0056] One end of the nozzle core 2 located in the nozzle tube 1 is in contact with the elastic member 3. When the nozzle core 2 contracts relative to the nozzle tube 1, the elastic force of the elastic member 3 is overcome. The elastic member 3 compresses and absorbs the impact force of the nozzle on the user's tooth surface or gums, thereby playing a buffering role to avoid damaging the user's oral cavity; when the nozzle core 2 is not subjected to the pressure of the tooth surface or gums, the nozzle core 2 returns to its original position under the elastic force of the elastic member 3 and extends to the first limit position; the elastic member 3 has the function of improving the buffering effect of the impact force and has the function of returning the nozzle core 2. In some embodiments, the elastic member 3 is a compression spring.

[0057] In some embodiments, Figures 1 to 5 As shown, the nozzle core 2 includes a core 21 and a nozzle column 22 arranged at one end of the core 21, the core 21 is located in the nozzle 1, and the end of the nozzle column 22 away from the core 21 is located outside the nozzle 1; the third flow channel 24 extends from the core 21 along the axial direction of the nozzle column 22 and penetrates the nozzle column 22, and the second flow channel 23 is arranged in the core 21. Specifically, a receiving chamber 11 is provided in the nozzle 1, and an opening communicating with the receiving chamber 11 is provided at the end of the nozzle 1. The core 21 is located in the receiving chamber 11 and can slide relative to the receiving chamber 11, and the nozzle column 22 penetrates the opening and is slidably connected to the opening. The nozzle core 2 can be extended and retracted relative to the nozzle 1 by positioning the core 21 in the receiving chamber 11 and slidably connected to the receiving chamber 11. It is similar to a cylinder and a piston rod, with a simple structure and easy installation. The side wall of the receiving chamber 11 can guide the core 21, and the opening can also guide the nozzle column 22. Optionally, the receiving chamber 11, the core 21 and the nozzle column 22 are all cylindrical.

[0058] In some embodiments, Figures 1 to 4 As shown, the nozzle 1 includes a first tube body 12 and a second tube body 13 detachably connected to the first tube body 12, and a receiving cavity 11 is formed between the first tube body 12 and the second tube body 13. The detachable connection between the first tube body 12 and the second tube body 13 facilitates processing and assembly. Specifically, the first tube body 12 and the second tube body 13 are separately formed and then installed, which can reduce processing costs. The upper end of the second tube body 13 is provided with an opening for the nozzle column 22 to pass through, and the end of the first tube body 12 is provided with a limit groove 123. Figure 1 As shown, during assembly, the nozzle column 22 of the nozzle core 2 is first passed through the upper end opening of the second tube body 13 so that the core 21 is located in the second tube body 13, and then the elastic member 3 is placed in the limiting groove 123, and finally the second tube body 13 is matched with the first tube body 12.

[0059] Specifically, one end of the second tube body 13 is sleeved on one end of the first tube body 12 . Optionally, the lower end of the second tube body 13 and the upper end of the first tube body 12 can be detachably connected by threaded connection, clamping or gluing.

[0060] In some embodiments, Figures 1 to 5 As shown, the side wall of the nozzle column 22 is provided with a fourth flow channel 26 connected to the third flow channel 24. Specifically, the fourth flow channel 26 is arranged along the radial direction of the nozzle column 22. When the nozzle core 2 moves between the first extreme position and the third position, the fourth flow channel 26 is blocked by the wall of the nozzle tube 1 and is not connected to the first flow channel 122; when the nozzle core 2 moves between the third position and the second extreme position, the fourth flow channel 26 is staggered from the wall of the nozzle tube 1, and is connected to the first flow channel 122. Among them, the third position is located between the first extreme position and the second extreme position. When the nozzle core 2 is between the first extreme position and the third position, the first flow channel 122 is only connected to the second flow channel 23. The liquid enters the third flow channel 24 through the second flow channel 23 and then rinses the oral cavity. The rinsing force is relatively small, and it is not easy to cause gum bleeding when consumers rinse their teeth. When the nozzle core 2 is between the third position and the second extreme position, the first flow channel 122 is connected to the second flow channel 23 and the fourth flow channel 26 respectively, and the liquid enters the third flow channel 24 through the second flow channel 23 and the fourth flow channel 26 to rinse the oral cavity. Compared with the method of only entering the third flow channel 24 through the second flow channel 23, the resistance is reduced and the flow rate is increased, so that the water jet from the third flow channel 24 is columnar, the flushing force is greater, and the cleaning effect of the teeth is improved. Consumers can choose two different flushing forces for flushing according to the situation.

[0061] In some embodiments, Figures 1 to 5 As shown, the second flow channel 23 includes a radial flow channel 231 and a side flow channel 232. The side flow channel 232 is provided on the side wall of the core 21 and extends along the axial direction of the core 21. One end of the radial flow channel 231 is connected to the side flow channel 232, and the other end of the radial flow channel 231 is connected to the third flow channel 24. The first flow channel 122 is connected to the side flow channel 232. The side flow channel 232 extends upward from the lower end of the core 21 to the radial flow channel 231, and the liquid is introduced into the radial flow channel 231 via the side flow channel 232. Specifically, the side wall of the core 21 is also provided with a water groove 25, and the water groove 25 runs through the core 21 from top to bottom, as shown in FIG. Figure 2 As shown, the liquid in the first flow channel 122 flows upward through the water passage 25 to the top of the core 21 , and then can enter the fourth flow channel 26 .

[0062] In some embodiments, Figures 1 to 4As shown, a silicone head 4 is provided at one end of the nozzle core 2 outside the nozzle pipe 1. Specifically, the silicone head 4 is sleeved on the end of the nozzle column 22. The main function of the silicone head 4 is to find the gap between teeth to prevent water flow from impacting the gums. When the nozzle core 2 moves between the teeth, it plays a role in protecting the teeth and gums.

[0063] In some embodiments, Figures 1 to 5 As shown in the figure, the nozzle structure has two water jet states, one is an umbrella-shaped spiral water flow state, which automatically works in this state when the water flosser is started, thereby preventing the consumer from bleeding gums when water flossing; the other is a columnar water flow state, which is used when the consumer rinses the gaps between teeth, making it convenient to rinse the residue between teeth. One gear and two modes are automatically switched according to the needs of the consumer, which is convenient to operate. After leaving the gap between teeth, it automatically switches to an umbrella-shaped water flow to avoid bleeding gums.

[0064] Specifically, Figure 1 As shown, when the water flosser is started, due to the impact force of the water flow and / or the action of the elastic member 3, the nozzle core 2 moves to the uppermost end. At this time, the nozzle structure is always working in the first state. The water flow sprayed by the nozzle structure is in a spiral or atomized state. At this time, the impact force of the water flow is small, which can clean the residues and dental plaque on the periodontal surface. At this time, the water flow only enters the third flow channel 24 through the second flow channel 23. After the multiple tangential water flows of the multiple second flow channels 23 converge on the wall of the third flow channel 24, the liquid film is broken, and the water flow is in a spiral or atomized state. At this time, the water flow is umbrella-shaped with a small impact force of about 5g. At this time, the dental plaque on the tooth surface or between the teeth can be cleaned on a large scale.

[0065] like Figure 2 As shown, when the silicone head 4 on the nozzle core 2 is touched by the teeth, the nozzle core 2 moves downward, and the silicone head 4 assists the consumer to align the spray hole with the tooth gap to avoid damage to the teeth and gums caused by the impact force of the nozzle core 2 during movement. At this time, the nozzle structure works in the second state. At this time, the water flows into the third flow channel 24 through the second flow channel 23 and the fourth flow channel 26. The second flow channel 23 and the fourth flow channel 26 work in parallel, the resistance of the system is reduced, and the flow rate is increased, thereby increasing the impact force in the second state. At the same time, the radial water flow of the fourth flow channel 26 and the spiral water flow of the second flow channel 23 converge in the third flow channel 24, the spiral effect is weakened, the circumferential flow velocity of the water flow is reduced, and the axial velocity is increased, thereby increasing the impact force of the water flow, which can effectively remove the residue in the tooth gap. At this time, the impact force of the water flow is significantly increased, the water flow is close to a columnar shape, and the impact force is about 11g, which significantly improves the cleaning effect of the tooth gap.

[0066] An embodiment of the present application also provides a water flosser, comprising the water flosser nozzle structure described in the above embodiment.

[0067] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0068] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A nozzle structure of a water flosser, It is characterized in that The water flosser nozzle structure has a first flow channel, a second flow channel and a third flow channel, the first flow channel is connected to the third flow channel through the second flow channel, and the third flow channel has a water outlet; The water outlet of the second flow channel is located on the side wall of the third flow channel, and the axis of the water outlet of the second flow channel does not intersect with the axis of the third flow channel, so that the water flows into the third flow channel from the water outlet of the second flow channel in a spiral flow.

2. The water flosser nozzle structure according to claim 1, Features: The first flow channel and the third flow channel are both arranged along the axial direction of the oral irrigator nozzle structure, and the second flow channel includes a radial flow channel arranged outside the third flow channel, one end of the radial flow channel is connected to the first flow channel, and the other end of the radial flow channel is connected to the third flow channel.

3. The water flosser nozzle structure according to claim 2, Features: The radial flow channel extends obliquely upward, so that water flows obliquely upward from the water inlet of the radial flow channel to the water outlet of the radial flow channel and then enters the third flow channel.

4. The water flosser nozzle structure according to claim 2, Features: The distance between the axis of the radial flow channel and the axis of the third flow channel is greater than or equal to 1 / 3 of the radius of the third flow channel.

5. The water flosser nozzle structure according to claim 2, Features: The diameter of the radial flow channel is smaller than the diameter of the third flow channel.

6. The water flosser nozzle structure according to claim 5, Features: The ratio of the diameter of the radial flow channel to the diameter of the third flow channel is 1 / 3-2 / 3.

7. The water flosser nozzle structure according to claim 2, Features: The boundary of the radial flow channel is located outside the boundary of the third flow channel or is tangent to the boundary of the third flow channel.

8. The water flosser nozzle structure according to claim 2, Features: There are a plurality of radial flow channels, and the plurality of radial flow channels are arranged at intervals around the circumference of the third flow channel; The water outlets of each radial flow channel make the water flow spiral in the same direction.

9. The water flosser nozzle structure according to claim 8, Features: The water outlets of the radial flow channels are on the same plane, and / or the water outlets of the radial flow channels have the same inclination angle.

10. The water flosser nozzle structure according to claim 1, Features: The bottom end of the third flow channel is located below the water outlet of the second flow channel.

11. The water flosser nozzle structure according to claim 10, Features: The distance between the bottom end of the third flow channel and the edge of the water outlet of the second flow channel is no more than 5 mm.

12. The water flosser nozzle structure according to claim 10, Features: The bottom end of the third flow channel is in a concave curved shape.

13. The water flosser nozzle structure according to claim 1, It is characterized in that include: A nozzle core and a nozzle, wherein the nozzle has the first flow channel, the second flow channel and the third flow channel are arranged on the nozzle core, the nozzle sleeve is arranged on one end of the nozzle core, and the other end of the nozzle core is located outside the nozzle.

14. The water flosser nozzle structure according to claim 13, Features: The nozzle core comprises a core and a nozzle column arranged at one end of the core, the core is located in the nozzle pipe, and one end of the nozzle column away from the core is located outside the nozzle pipe; The third flow channel extends from the core portion along the axial direction of the nozzle column and penetrates the nozzle column, and the second flow channel is provided in the core portion.

15. The water flosser nozzle structure according to claim 14, Features: The second flow channel includes a radial flow channel and a side flow channel. The side flow channel is arranged on the side wall of the core and extends along the axial direction of the core. One end of the radial flow channel is connected to the side flow channel, and the other end of the radial flow channel is connected to the third flow channel. The first flow channel is connected to the side flow channel.

16. A dental flosser, It is characterized in that include: The oral irrigator nozzle structure as described in any one of claims 1 to 15.

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