A dental flosser

Abstract

This application provides a water flosser, belonging to the field of oral hygiene technology. The water flosser includes a body, a nozzle, a pump body, a connector, and a regulating valve. The nozzle is located at one end of the body along a first direction; the connector has a first air inlet, a liquid inlet, and an outlet that are interconnected; the regulating valve defines an airflow channel, which has a second air inlet and an air outlet, with the outlet connected to the first air inlet; one end of the pump body is connected to the outlet via a liquid inlet pipe, and the other end of the pump body is connected to the nozzle; in the first adjustment position, the second air inlet is sealed closed; in the second adjustment position, the second air inlet is connected to the air outlet; as the regulating valve is adjusted from the first adjustment position to the second adjustment position, the guiding area of ​​the second air inlet gradually increases. The water flosser provided by this application can dynamically adjust the diameter of the microbubbles in the water stream sprayed from the nozzle, which can remove stubborn residues, reduce the risk of gum bleeding, and is suitable for users with sensitive mouths.

Description

Technical Field

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

[0002] A water flosser is a device used for oral care. It uses pressure to spray a stream of water from the nozzle to clean the user's mouth. Water flossers are now widely used in people's daily lives.

[0003] Because the nozzle of existing water flossers only has a single jet of water, the impact force is relatively concentrated. Although the water pressure is relatively high and the cleaning effect is good, the strong impact force can cause discomfort in the oral cavity, and may even cause stinging and bleeding in areas such as the gums, resulting in significant oral damage and affecting the user experience. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a dental flosser.

[0005] This application provides the following technical solution: a dental flosser, having a first direction, comprising: ontology; A nozzle is disposed at one end of the body along the first direction; A connector is disposed within the body, the connector having a first air inlet end, a liquid inlet end, and an outlet end that are interconnected in pairs; A pump body is disposed within the main body, one end of the pump body is connected to the outlet end through an inlet pipe, and the other end of the pump body is connected to the nozzle; A regulating valve is movably disposed on one side of the main body. The regulating valve defines an airflow channel. The airflow channel has a second air inlet and an air outlet, and the air outlet is connected to the first air inlet. The regulating valve has a first regulating position and a second regulating position; When in the first adjustment position, the second air intake end is sealed closed; In the second adjustment position, the second air inlet is open and connected to the air outlet; As the regulating valve is adjusted from the first regulating position to the second regulating position, the guiding area of ​​the second air inlet gradually increases.

[0006] In some embodiments, the oral irrigator has a second direction perpendicular to the first direction, and the regulating valve includes a valve core and an adjusting knob, the adjusting knob being movably connected to the valve core along the second direction; The valve core defines the airflow channel, one end of the valve core is connected to the first air inlet, and the adjustment knob is movably connected to the end of the valve core opposite to the first air inlet. When in the first adjustment position, the adjustment knob is located in the second air inlet and seals the second air inlet. In the second adjustment position, the adjustment knob is spaced apart from the second air intake end.

[0007] In some embodiments, the valve core includes a connecting end and a connecting pipe connected together. The connecting end has a flow guide groove on the side away from the connecting pipe. The flow guide groove has a first groove bottom on one side along the second direction. The first groove bottom has a through hole. The flow guide groove communicates with the airflow channel through the through hole.

[0008] In some embodiments, the valve core includes a first sealing ring disposed in the flow guide groove, and one side of the first sealing ring along the second direction abuts against the bottom of the first groove; The inner diameter of the first sealing ring is greater than or equal to the diameter of the through hole.

[0009] In some embodiments, the adjustment knob is provided with a mounting groove, the mounting groove has a second groove bottom on one side along the second direction, the second groove bottom is provided with an adjustment post extending along the second direction, and the side wall of the adjustment post and the inner wall of the second groove bottom enclose to form an annular channel; The end of the connecting end facing away from the connecting pipe is received in the annular channel, and the adjusting column is at least partially inserted through the guide groove.

[0010] In some embodiments, the adjusting column includes a first column and a second column, the second column being disposed on the side of the first column away from the bottom of the second groove, and the cross-sectional area of ​​the second column gradually decreasing from the end closer to the first column to the end farther away from the first column. In the first adjustment position, the outer wall of the first column abuts against the inner wall of the first sealing ring to form a sealed connection structure; In the second adjustment position, the outer wall of the first column and the inner wall of the first sealing ring are spaced apart to form the second air inlet.

[0011] In some embodiments, the outer diameter of the end of the second column near the first column is greater than the inner diameter of the first sealing ring, and the outer diameter of the end of the second column away from the first column is smaller than the inner diameter of the through hole.

[0012] In some embodiments, a first connecting portion is provided on the outer periphery of the connecting end, and a second connecting portion is provided on the inner wall of the mounting groove, wherein the first connecting portion and the second connecting portion are movably connected along the second direction.

[0013] In some embodiments, the adjustment knob is provided with a plurality of spaced-apart guide holes on the side opposite to the valve core along the second direction, and the guide holes are connected to the guide groove through the annular channel.

[0014] In some embodiments, the oral irrigator further includes a filter element, which is sleeved on the first column and abuts against the inner wall of the mounting groove along one side perpendicular to the second direction; Along the second direction, one side of the filter element abuts against the bottom of the second groove, and the other side of the filter element abuts against the side of the connecting end opposite to the connecting pipe.

[0015] In some embodiments, a sealing tube is provided inside the first air intake end, the side wall of the sealing tube is connected to the inner wall of the first air intake end, and the inner wall of the sealing ring is connected to the outer wall of the connecting tube.

[0016] The embodiments of this application have the following advantages: When the water flosser provided in this application is running, the liquid flowing through the nozzle is pressurized by the pump body, forming a positive pressure liquid at the nozzle outlet. The liquid flowing through the inlet end, due to the negative pressure suction of the pump body, is a negative pressure liquid. According to Bernoulli's principle, the pressure is low where the flow velocity is high. When the low-pressure liquid passes through the regulating valve, a "Venturi effect" occurs, causing the external air pressure to be lower than the inlet pressure. This results in low-pressure gas flowing into the inlet end, mixing and forming a liquid containing bubbles.

[0017] By moving the regulating valve to one side of the main body and adjusting it from the first to the second adjustment position, the guiding area of ​​the second air inlet gradually increases, meaning the flow rate of the gas flowing through the second air inlet gradually increases. This, in turn, increases the flow rate of the gas entering the outlet, causing the diameter of the microbubbles generated after the gas mixes with the liquid at the outlet to gradually increase. This allows for dynamic adjustment of the microbubble diameter in the water stream sprayed from the nozzle. When the bubble diameter in the liquid is small, the liquid sprayed from the nozzle can form a strong pulse water flow, suitable for removing stubborn residues. When the bubble diameter in the liquid is large, the water stream sprayed from the nozzle is gentler, reducing the risk of gum bleeding and making it suitable for users with sensitive mouths.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This application provides a schematic diagram of the structure of a dental flosser from one perspective, illustrating some embodiments thereof. Figure 2 An exploded view of a regulating valve in a water flosser provided in some embodiments of this application is shown; Figure 3 This application provides a first-view structural schematic diagram of the interior of a water flosser according to some embodiments of the present application; Figure 4 This application provides a second-view structural schematic diagram of the interior of a water flosser according to some embodiments of the present application; Figure 5 It shows Figure 4 Sectional view of section AA; Figure 6 This application provides a schematic diagram of the structure of an adjustment knob in a water flosser from one perspective, based on some embodiments of the present application. Figure 7 It shows Figure 6 Sectional view of the middle BB section; Figure 8 This application provides a schematic diagram of the valve core in a dental flosser from one perspective, illustrating some embodiments thereof. Figure 9 It shows Figure 8 Cross-sectional view of the central CC section.

[0021] Explanation of key component symbols: 100-Body; 200-Nozzle; 300-Connector; 310-First air inlet; 320-Liquid inlet; 330-Outlet; 400-Regulating valve; 410-Airflow channel; 411-Second air inlet; 412-Air outlet; 420-Valve core; 430-Adjusting knob; 421-Connecting end; 422-Connecting pipe; 423-Guide groove; 424-First groove bottom; 425-Through hole; 500-First seal 431-Installation groove; 432-Second groove bottom; 433-Adjusting column; 434-Annular channel; 4331-First column; 4332-Second column; 427-First connecting part; 426-Connecting piece; 435-Second connecting part; 436-Guide hole; 600-Filter element; 700-Sealing tube; 110-Installation hole; 4221-Annular groove; 800-Sealing ring; 900-Pump body; 1000-Inlet pipe.

[0022] Z - First direction; X - Second direction. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figures 1 to 5 As shown, some embodiments of this application provide a water flosser with a first direction Z, which is mainly used for oral cleaning. By dynamically adjusting the air intake of the water flosser, the ratio of liquid and gas mixture is adjusted, thereby controlling the size of the bubbles generated after the gas and liquid are mixed, so as to improve the cleaning efficiency of the oral cavity and thus be suitable for different oral cleaning needs of users.

[0029] The oral irrigator includes a body 100, a nozzle 200, a connector 300, a pump body 900, and a regulating valve 400.

[0030] It should be noted that the interior of the main body 100 defines an installation space, and the connector 300 is located in the installation space and is fixedly connected to the main body 100 to ensure the stability of the connector 300 in the installation space.

[0031] The nozzle 200 is disposed at one end of the body 100 along the first direction Z. The connection method between the nozzle 200 and the body 100 includes any one of the following: threaded connection, snap-fit, adhesive connection, magnetic connection, interference fit, and bolt connection, which can be specifically set according to the actual situation. It is understood that by detachably connecting the nozzle 200 and the body 100, the nozzle 200 can be easily cleaned or replaced to meet the user's oral hygiene needs.

[0032] In this embodiment, the connector 300 is disposed within the body 100. The connector 300 has a first air inlet 310, a liquid inlet 320, and an outlet 330 that are interconnected in pairs. The outlet 330 is connected to the nozzle 200, allowing external gas to enter the outlet 330 through the first air inlet 310 and external liquid to enter the outlet 330 through the liquid inlet 320. This allows the gas flowing through the first air inlet 310 and the liquid flowing through the liquid inlet 320 to mix at the outlet 330, forming microbubbles in the liquid. It is understood that the mixed liquid enters the nozzle 200 through the outlet 330 and is ejected from the nozzle head.

[0033] It should be noted that in this embodiment, the pump body 900 is disposed inside the main body 100. One end of the pump body 900 is connected to the outlet end 330 through the liquid inlet pipe 1000, and the other end of the pump body 900 is connected to the nozzle 200. This allows the liquid flowing through the nozzle 200 to be pressurized by the pump body 900 and form a positive pressure liquid at the outlet of the nozzle 200. The liquid flowing through the inlet end 320 is a negative pressure liquid due to the negative pressure suction of the pump body 900. According to Bernoulli's principle, the pressure is low where the flow velocity is high. When low-pressure liquid passes through regulating valve 400, a "Venturi effect" is formed, causing the liquid flowing through regulating valve 400 to cause the external air pressure of regulating valve 400 to be lower than the pressure at the inlet end 320. As a result, low-pressure gas flows into the inlet end 320, and mixes at the inlet end 320 to form a liquid with bubbles. The high-pressure gas-liquid mixture formed during the operation of pump body 900 is sprayed out through nozzle 200.

[0034] Specifically, the pump body 900 has a positive pressure outlet end and a negative pressure inlet end. The positive pressure outlet end of the pump body 900 is connected to the nozzle 200, and the negative pressure inlet end of the pump body 900 is connected to the outlet end 330 of the connector 300 through the inlet pipe 1000. In other words, the regulating valve 400 is connected to the negative pressure inlet end of the pump body 900.

[0035] It should be noted that the Venturi effect is a fluid mechanics phenomenon, referring to the phenomenon that the velocity of a confined fluid increases and the pressure decreases when it flows through a narrow cross section.

[0036] Additionally, a regulating valve 400 is movably disposed on one side of the main body 100. The regulating valve 400 defines an airflow channel 410. The airflow channel 410 has a second inlet end 411 and an outlet end 412. The outlet end 412 is connected to the first inlet end 310. The second inlet end 411 is used to communicate with external gas, so that external gas can enter the airflow channel 410 through the second inlet end 411 and enter the outlet end 330 through the outlet end 412 and the first inlet end 310, and then be discharged from the outlet end 330 through the nozzle 200.

[0037] In this embodiment, the regulating valve 400 has a first regulating position and a second regulating position. The regulating valve 400 can switch between the first regulating position and the second regulating position to regulate the flow rate of gas entering the airflow channel 410 through the second air inlet 411, thereby controlling the flow rate of gas entering the outlet 330.

[0038] It should be noted that when the regulating valve 400 is in the first regulating position, the second air inlet 411 is sealed closed, meaning that external gas cannot enter the airflow channel 410 through the second air inlet 411. In other words, in this state, only liquid can enter the outlet 330 through the liquid inlet 320, meaning that there are no microbubbles in the liquid sprayed by the nozzle 200.

[0039] When the regulating valve 400 is in the second regulating position, the second air inlet 411 is opened, that is, the second air inlet 411 is connected to the air outlet 412, and external gas can enter the air outlet 412 through the second air inlet 411, so that the gas flowing through the airflow channel 410 can mix with the liquid flowing through the liquid inlet 320 at the outlet 330, thereby generating microbubbles in the liquid flowing through the nozzle 200.

[0040] It should be noted that during the process of adjusting the regulating valve 400 from the first adjusting position to the second adjusting position, the guiding area of ​​the second air inlet 411 gradually increases, that is, the flow rate of the gas flowing through the second air inlet 411 gradually increases, thereby increasing the flow rate of the gas entering the outlet 330, so that the diameter of the microbubbles generated after the gas mixes with the liquid at the outlet 330 gradually increases, thereby realizing the dynamic adjustment of the diameter of the microbubbles in the water flow sprayed from the nozzle 200.

[0041] Furthermore, when the diameter of the bubbles in the liquid is small, the liquid sprayed from the nozzle 200 can form a strong pulse of water, which is suitable for removing stubborn residues; when the diameter of the bubbles in the liquid is large, the water sprayed from the nozzle 200 is gentler, which can reduce the risk of gum bleeding for users and is suitable for users with sensitive mouths.

[0042] In this embodiment, by controlling the diameter of the bubbles in the liquid, the impact of the high-pressure water flow on the user's oral cavity is buffered by the gas, thereby effectively reducing the probability of gingival bleeding and making it suitable for people with sensitive mouths. Furthermore, it is worth noting that the cavitation effect generated when the microbubbles burst upon impact with the tooth surface by the water flow enhances the water's penetration, improving the efficiency of plaque and food debris removal. This allows the microbubbles to penetrate to areas below 3mm in the gingival sulcus, increasing plaque removal rate by 40%, thus further improving the quality of oral cleaning. By adjusting the flow rate of the gas passing through the outlet 330, the amount of pure water used can be effectively reduced, lowering the cost of oral cleaning.

[0043] It should be noted that cavitation refers to the tiny shock waves generated when bubbles burst in high-speed water flow. This instantaneous energy release can destroy the adhesive structure of bacterial biofilms, especially stubborn deposits near the gum line and in the gaps between teeth. The microjet when bubbles burst can penetrate into narrow areas (such as gaps between teeth and pits) that are difficult for ordinary water flow to reach.

[0044] Secondly, by adjusting the diameter of the microbubbles in the liquid, the contact area between the liquid and the tooth surface can be increased, thereby improving cleaning efficiency.

[0045] like Figures 3 to 5 As shown, in some embodiments of this application, the oral irrigator has a second direction X perpendicular to the first direction Z, and the regulating valve 400 includes a valve core 420 and an regulating knob 430.

[0046] The valve core 420 is connected to the body 100, and the connection method includes any one of threaded connection, snap-fit, adhesive connection, magnetic connection, interference fit or riveting, which can be specifically set according to the actual situation.

[0047] Furthermore, the adjusting knob 430 is movably connected to the valve core 420 along the second direction X, meaning the adjusting knob 430 can move relative to the valve core 420 along the second direction X. It is understood that the connection between the adjusting knob 430 and the valve core 420 can be either a threaded connection or a sliding connection.

[0048] By controlling the position of the adjusting knob 430 and the valve core 420 along the second direction X, the flow rate of the gas flowing through the second inlet end 411 is adjusted, thereby controlling the flow rate of the gas entering the outlet end 330.

[0049] In this embodiment, the valve core 420 defines the airflow channel 410. One end of the valve core 420 is connected to the first air inlet 310. Specifically, the end of the valve core 420 facing away from the adjustment knob 430 along the second direction X is inserted into the first air inlet 310, thereby connecting the airflow channel 410 with the first air inlet 310. The adjustment knob 430 is movably connected to the end of the valve core 420 facing away from the first air inlet 310, so that the adjustment knob 430 can move relative to the valve core 420 along the second direction X. Thus, the diameter of the second air inlet 411 is adjusted during the movement of the adjustment knob 430 relative to the valve core 420 along the second direction X, thereby adjusting the flow rate of the gas flowing through the airflow channel 410 through the second air inlet 411.

[0050] When the adjusting knob 430 is in the first adjusting position relative to the valve core 420, the adjusting knob 430 is partially disposed in the second air inlet 411, and the second air inlet 411 is sealed by the adjusting knob 430 disposed in the second air inlet 411, thereby sealing the airflow channel 410 to prevent external gas from entering the outlet 330 through the second air inlet 411.

[0051] When the adjusting knob 430 is in the second adjusting position relative to the valve core 420, the adjusting knob 430 is spaced apart from the second air inlet 411, so that external gas can enter the airflow channel 410 through the second air inlet 411 and mix with the liquid flowing into the outlet 330, thereby generating microbubbles in the liquid.

[0052] Understandably, as the adjustment knob 430 is gradually moved from the first adjustment position to the second adjustment position relative to the valve core 420, the guiding area of ​​the second air inlet 411 gradually increases, that is, the gas flow rate flowing into the airflow channel 410 through the second air inlet 411 gradually increases, thereby adjusting the ratio of gas and liquid entering the outlet 330, thereby controlling the diameter of the microbubbles mixed in the liquid.

[0053] like Figure 8 and Figure 9 As shown, in some embodiments of this application, the valve core 420 includes a connecting end 421 and a connecting pipe 422 connected together, and the connection method between the connecting pipe 422 and the connecting end 421 includes any one of threaded connection, snap-fit, adhesive bonding or integral molding.

[0054] In this embodiment, the connecting end 421 and the connecting pipe 422 are integrally formed to form the valve core 420, so as to improve the overall strength and stability of the valve core 420.

[0055] In this embodiment, the connecting end 421 has a guide groove 423 on the side opposite to the connecting pipe 422 along the second direction X. The opening of the guide groove 423 is set opposite to the connecting pipe 422 along the second direction X. The guide groove 423 has a first groove bottom 424 on the side along the second direction X. The first groove bottom 424 has a through hole 425. The guide groove 423 is connected to the airflow channel 410 through the through hole 425, that is, external gas can enter the outlet end 330 through the guide groove 423, the through hole 425 and the connecting pipe 422. It should be noted that the airflow channel 410 described in any of the above embodiments is formed by sequentially connecting the guide groove 423, the through hole 425 and the connecting pipe 422.

[0056] In this embodiment, the axis of the guide groove 423, the axis of the through hole 425, and the axis of the connecting pipe 422 coincide, and the inner diameter of the guide groove 423 is larger than the inner diameter of the through hole 425, the inner diameter of the through hole 425 is larger than the inner diameter of the connecting pipe 422, and the inner diameter of the connecting pipe 422 is larger than or equal to the inner diameter of the first air inlet end 310, so as to ensure the flow rate of the gas entering the first air inlet end 310.

[0057] In this embodiment, the connecting pipe 422 passes through the body 100 along the second direction X and is disposed inside the body 100. The side of the connecting end 421 facing the connecting pipe 422 abuts against the outer wall of the body 100 so as to limit the connecting end 421 by the outer wall of the body 100, so as to ensure the accuracy of the connection position between the valve core 420 and the body 100.

[0058] like Figure 5 and Figure 8 As shown, in some embodiments of this application, the connecting end 421 is provided with a plurality of spaced connectors 426 on the side facing the connecting pipe 422. The end of the connector 426 away from the connecting end 421 is inserted into the body 100 and engages with the inner wall of the body 100 to form a snap-fit ​​connection.

[0059] The number of connectors 426 can be any number of two or more values, and can be set according to the actual situation.

[0060] It should be noted that there is a gap between the connector 426 and the connecting pipe 422.

[0061] In some embodiments, there are two connectors 426, which are located on opposite sides of the connecting pipe 422 along the second direction X. The two connectors 426 are connected to the inner wall of the body 100, which not only ensures the stability of the connection between the valve core 420 and the body 100, but also reduces the production cost of the valve core 420 by controlling the number of connectors 426.

[0062] It is understandable that by abutting the side of the connecting end 421 facing the body 100 against the outer wall of the body 100, and connecting it to the inner wall of the body 100 through the connector 426, the valve core 420 is fixedly connected to the body 100, thereby improving the stability of the valve core 420 on the body 100.

[0063] like Figure 5 As shown, in some embodiments of this application, the valve core 420 includes a first sealing ring 500, which is disposed in the guide groove 423.

[0064] Along the direction perpendicular to the second direction X, the outer wall of the first sealing ring 500 abuts against the inner wall of the guide groove 423. Additionally, one side of the first sealing ring 500 along the second direction X abuts against the bottom 424 of the first groove. This combination of the inner wall of the guide groove 423 and the bottom 424 of the first groove provides a limiting effect on the first sealing ring 500, thereby improving its stability within the guide groove 423.

[0065] Wherein, the inner diameter of the first sealing ring 500 is greater than or equal to the diameter of the through hole 425, so as to avoid the first sealing ring 500 affecting the airflow through the airflow channel 410, thereby ensuring the stability of the airflow through the airflow channel 410.

[0066] In addition, the first sealing ring 500 is at least one of a rubber sealing ring and a silicone sealing ring.

[0067] It should be noted that when the adjusting knob 430 is in the first adjusting position relative to the valve core 420, a portion of the adjusting knob 430 abuts against the inner wall of the first sealing ring 500, thereby sealing the second air inlet 411 through the first sealing ring 500 and the adjusting knob 430. When the adjusting knob 430 is in the second adjusting position relative to the valve core 420, the adjusting knob 430 is spaced from the inner wall of the first sealing ring 500, thereby opening the second air inlet 411 so that external gas can enter the airflow channel 410 through the second air inlet 411.

[0068] By providing a resilient first sealing ring 500 in the guide groove 423, the sealing quality of the adjustment knob 430 relative to the valve core 420 to the second air inlet 411 in the first adjustment position is improved.

[0069] like Figures 5 to 7As shown, in some embodiments of this application, the adjustment knob 430 is provided with a mounting groove 431, the mounting groove 431 has a second groove bottom 432 on one side along the second direction X, the second groove bottom 432 is provided with an adjustment post 433 extending along the second direction X, the side wall of the adjustment post 433 and the inner wall of the second groove bottom 432 enclose to form an annular channel 434, the axis of the annular channel 434 coincides with the axis of the guide groove 423.

[0070] In this embodiment, the adjustment knob 430 is movably connected to the connection end 421 along the second direction X.

[0071] Wherein, the end of the connecting end 421 facing away from the connecting pipe 422 is received in the annular channel 434, and the adjusting column 433 is at least partially inserted through the guide groove 423, so as to define the second air inlet end 411 as described in any of the above embodiments by the outer wall of the adjusting column 433, the inner wall of the guide groove 423 and the inner wall of the first sealing ring 500.

[0072] It is understandable that when the adjusting knob 430 moves relative to the connecting end 421 in the second direction X, the adjusting column 433 moves relative to the first sealing ring 500 in the second direction X.

[0073] Specifically, when the adjusting knob 430 is in the first adjusting position relative to the valve core 420, the side wall of the adjusting column 433 abuts against the inner wall of the first sealing ring 500, thereby sealing the second air inlet 411 through the first sealing ring 500 and the adjusting column 433. When the adjusting knob 430 is in the second adjusting position relative to the valve core 420, the side wall of the adjusting column 433 is spaced apart from the inner wall of the first sealing ring 500, thereby opening the second air inlet 411 so that external gas can enter the airflow channel 410 through the second air inlet 411.

[0074] It is understandable that by controlling the position of the adjusting knob 430 relative to the valve core 420, the distance between the inner wall of the first sealing ring 500 and the outer wall of the adjusting column 433 is adjusted, thereby adjusting the air flow rate through the second air inlet 411, and thus adjusting the air flow rate into the outlet 330.

[0075] like Figures 5 to 7 As shown, in some embodiments of this application, the adjusting column 433 includes a first column 4331 and a second column 4332, which are coaxially connected. The connection method includes any one of threaded connection, snap-fit, bonding, or integral molding. In this embodiment, the first column 4331 and the second column 4332 are integrally molded to ensure the strength and stability of the adjusting column 433.

[0076] The second column 4332 is disposed on the side of the first column 4331 away from the bottom of the second groove 432. The cross-sectional area of ​​the second column 4332 gradually decreases from the end near the first column 4331 to the end away from the first column 4331, that is, the second column 4332 is a conical structure.

[0077] When the adjusting knob 430 is in the first adjusting position relative to the valve core 420, the outer wall of the first column 4331 abuts against the inner wall of the first sealing ring 500 to form a sealing connection structure, thereby sealing the second air inlet 411.

[0078] When the adjusting knob 430 is in the second adjusting position relative to the valve core 420, the outer wall of the first column 4331 is spaced from the inner wall of the first sealing ring 500, thereby opening the second air inlet 411 so that external gas can be guided into the airflow channel 410 through the gap between the first column 4331 and the first sealing ring 500.

[0079] Understandably, as the adjusting knob 430 moves from the first adjusting position to the second adjusting position relative to the valve core 420, the annular flow area between the side wall of the second column 4332 and the inner wall of the first sealing ring 500 gradually increases, so as to control the flow rate and flow volume of the gas flowing through the airflow channel 410, thereby controlling the flow rate of the gas entering the outlet end 330, and thus controlling the diameter of the microbubbles generated after mixing with the liquid at the outlet end 330.

[0080] like Figure 5 and Figure 7 As shown, in some embodiments of this application, the outer diameter of the end of the second column 4332 near the first column 4331 is larger than the inner diameter of the first sealing ring 500, and the outer diameter of the end of the second column 4332 away from the first column 4331 is smaller than the inner diameter of the through hole 425, so as to ensure that the second column 4332 can pass through the first sealing ring 500, so that during the movement of the adjusting knob 430 relative to the valve core 420 in the second direction X, the side wall of the second column 4332 can abut against the inner wall of the first sealing ring 500 to form a sealing structure, and the side wall of the second column 4332 can be spaced from the inner wall of the first sealing ring 500 and open the second air inlet end 411.

[0081] like Figure 5 and Figure 8 As shown, in some embodiments of this application, the outer periphery of the connecting end 421 is provided with a first connecting part 427, and the inner wall of the mounting groove 431 is provided with a second connecting part 435. The first connecting part 427 and the second connecting part 435 are movably connected along the second direction X.

[0082] For example, in this embodiment, the first connecting part 427 is an external thread and the second connecting part 435 is an internal thread. The internal thread is connected to the external thread, thereby threading the adjusting knob 430 and the connecting end 421. By rotating the adjusting knob 430, the relative position of the adjusting knob 430 and the valve core 420 along the second direction X is controlled, thereby adjusting the air flow rate through the airflow channel 410.

[0083] Optionally, in some embodiments, the first connecting part 427 is a pulley, and the second connecting part 435 is a slide rail. The pulley and the slide rail are slidably connected along the second direction X, so that the air flow rate through the airflow channel 410 can be adjusted by sliding the adjusting knob 430 relative to the valve core 420 along the second direction X.

[0084] like Figure 2 , Figure 7 and Figure 8 As shown, in some embodiments of this application, the adjusting knob 430 is provided with a plurality of spaced-apart guide holes 436 on the side opposite to the valve core 420 along the second direction X. The guide holes 436 penetrate the bottom of the second groove 432 along the second direction X. The guide holes 436 are connected to the guide groove 423 through the annular channel 434, so that external gas can enter the guide groove 423 through the guide holes 436.

[0085] The number of guide holes 436 can be any number of two or more values, and can be set according to the actual situation.

[0086] It should be noted that the guide holes 436 are spaced apart from the adjusting column 433. In some embodiments, multiple guide holes 436 are arranged in a ring at equal intervals along the axis of the adjusting column 433.

[0087] In this embodiment, there are two guide holes 436, which are located on opposite sides of the axis of the adjusting column 433 along the second direction X.

[0088] like Figure 5 As shown, in some embodiments of this application, the oral irrigator further includes a filter element 600, which is sleeved on the first column 4331. The inner wall of the filter element 600 abuts against the outer wall of the first column 4331, and the filter element 600 abuts against the inner wall of the mounting groove 431 along a side perpendicular to the second direction X.

[0089] Along the second direction X, one side of the filter element 600 abuts against the bottom of the second groove 432, and the other side of the filter element 600 abuts against the side of the connecting end 421 away from the connecting pipe 422, so as to provide a limiting effect on the filter element 600 through the bottom of the second groove 432 and the connecting end 421, so as to ensure the stability of the filter element 600 in the mounting groove 431, and at the same time, the filter element 600 provides a filtering effect on the gas flowing through the guide hole 436.

[0090] like Figure 5 As shown, in some embodiments of this application, a sealing tube 700 is provided inside the first air inlet end 310. The side wall of the sealing tube 700 is connected to the inner wall of the first air inlet end 310, and the inner wall of the sealing tube 700 is connected to the outer wall of the connecting tube 422, so as to improve the sealing quality between the connecting tube 422 and the first air inlet end 310.

[0091] like Figure 2 and Figure 5 As shown, in some embodiments of this application, the side wall of the body 100 is provided with a mounting hole 110, the connecting pipe 422 passes through the mounting hole 110, the outer wall of the connecting pipe 422 is provided with an annular groove 4221, the groove wall of the annular groove 4221 and the hole wall of the mounting hole 110 form an annular hole, and a sealing ring 800 is provided in the annular hole. The sealing ring 800 abuts against the groove wall of the annular groove 4221 and the hole wall of the mounting hole 110 to improve the sealing quality between the connecting pipe 422 and the body 100, thereby improving the sealing quality of the connection between the valve core 420 and the body 100.

[0092] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0093] 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 further defined and explained in subsequent figures.

[0094] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. An oral irrigator having a first direction, characterized by, include: ontology; A nozzle is disposed at one end of the body along the first direction; A connector is disposed within the body, the connector having a first air inlet end, a liquid inlet end, and an outlet end that are interconnected in pairs; A pump body is disposed within the main body, one end of the pump body is connected to the outlet end through an inlet pipe, and the other end of the pump body is connected to the nozzle; A regulating valve is movably disposed on one side of the main body. The regulating valve defines an airflow channel. The airflow channel has a second air inlet and an air outlet, and the air outlet is connected to the first air inlet. The regulating valve has a first regulating position and a second regulating position; When in the first adjustment position, the second air intake end is sealed closed; In the second adjustment position, the second air inlet is open and connected to the air outlet; As the regulating valve is adjusted from the first regulating position to the second regulating position, the guiding area of ​​the second air inlet gradually increases.

2. The waterpik of claim 1, wherein, The oral irrigator has a second direction perpendicular to the first direction, and the regulating valve includes a valve core and an regulating knob, wherein the regulating knob is movably connected to the valve core along the second direction; The valve core defines the airflow channel, one end of the valve core is connected to the first air inlet, and the adjustment knob is movably connected to the end of the valve core opposite to the first air inlet. When in the first adjustment position, the adjustment knob is located in the second air inlet and seals the second air inlet. In the second adjustment position, the adjustment knob is spaced apart from the second air intake end.

3. The oral irrigator of claim 2, wherein, The valve core includes a connecting end and a connecting pipe connected together. The connecting end has a flow guide groove on the side away from the connecting pipe. The flow guide groove has a first groove bottom on one side along the second direction. The first groove bottom has a through hole. The flow guide groove is connected to the airflow channel through the through hole.

4. The oral irrigator of claim 3, wherein, The valve core includes a first sealing ring, which is disposed in the flow guide groove, and one side of the first sealing ring along the second direction abuts against the bottom of the first groove; The inner diameter of the first sealing ring is greater than or equal to the diameter of the through hole.

5. The oral irrigator of claim 4, wherein, The adjustment knob is provided with a mounting groove, and the mounting groove has a second groove bottom on one side along the second direction. The second groove bottom is provided with an adjustment column extending along the second direction. The side wall of the adjustment column and the inner wall of the second groove bottom enclose and form an annular channel. The end of the connecting end facing away from the connecting pipe is received in the annular channel, and the adjusting column is at least partially inserted through the guide groove.

6. The oral irrigator according to claim 5, characterized in that, The adjusting column includes a first column and a second column. The second column is disposed on the side of the first column away from the bottom of the second groove. The cross-sectional area of ​​the second column gradually decreases from the end closer to the first column to the end farther away from the first column. In the first adjustment position, the outer wall of the first column abuts against the inner wall of the first sealing ring to form a sealed connection structure; In the second adjustment position, the outer wall of the first column and the inner wall of the first sealing ring are spaced apart to form the second air inlet.

7. The oral irrigator of claim 6, wherein, The outer diameter of the end of the second column closer to the first column is greater than the inner diameter of the first sealing ring, and the outer diameter of the end of the second column away from the first column is smaller than the inner diameter of the through hole.

8. The oral irrigator of any one of claims 5 to 7, wherein, The outer periphery of the connecting end is provided with a first connecting part, and the inner wall of the mounting groove is provided with a second connecting part. The first connecting part and the second connecting part are movably connected along the second direction.

9. The oral irrigator of any one of claims 5 to 7, wherein, The adjustment knob has multiple spaced-apart guide holes on the side opposite to the valve core along the second direction, and the guide holes are connected to the guide groove through the annular channel.

10. The oral irrigator according to claim 7, characterized in that, The oral irrigator also includes a filter element, which is sleeved on the first column and abuts against the inner wall of the mounting groove on one side perpendicular to the second direction. Along the second direction, one side of the filter element abuts against the bottom of the second groove, and the other side of the filter element abuts against the side of the connecting end opposite to the connecting pipe.

11. The oral irrigator of claim 10, wherein, The first air intake end is provided with a sealing tube inside, the side wall of the sealing tube is connected to the inner wall of the first air intake end, and the inner wall of the sealing ring is connected to the outer wall of the connecting tube.

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