Waterpik

Abstract

The application provides a water pick, which comprises a shell, a concentrated liquid bin, a needle, a water tank, a liquid pump, a concentrated liquid pipe, a water suction pipe and a nozzle. The concentrated liquid bin is detachably connected to the shell and is used for containing concentrated liquid. The concentrated liquid bin comprises a bin body and a sealing element. The bottom of the bin body is provided with an opening, and the sealing element seals the opening. The needle is connected to the shell and is provided with a liquid discharge channel and an air inlet channel. The needle is used for penetrating into the sealing element so that the liquid discharge channel and the air inlet channel are in communication with the inside of the concentrated liquid bin, and the air inlet channel is in communication with the outside. The concentrated liquid pipe is used for connecting the liquid discharge channel and the liquid inlet of the liquid pump. The water suction pipe is used for connecting the water tank and the liquid inlet of the liquid pump. The liquid inlet of the nozzle is in communication with the liquid outlet of the liquid pump. The application can realize smooth liquid discharge of the concentrated liquid bin and is beneficial to improving the reliability of the water pick.

Description

Technical Field

[0001] This application relates to the field of oral irrigator technology, and more specifically, to an oral irrigator. Background Technology

[0002] A water flosser is an auxiliary tool for cleaning the oral cavity. It usually uses a liquid pump to draw and pressurize water into a high-pressure stream to clean and care for the oral cavity by impacting the teeth and gaps between the teeth.

[0003] Meanwhile, more and more consumers are now mixing tap water or purified water with mouthwash concentrate in their water flossers. To meet user needs, water flossers need to have a water tank to store tap water or purified water and a concentrate reservoir to store mouthwash concentrate. A pump draws the tap water or purified water from the water tank and the mouthwash concentrate from the concentrate reservoir, mixes the two liquids, and then sprays them out from the nozzle of the water flosser.

[0004] However, due to the influence of air pressure, there may be difficulties in discharging the concentrate from the tank.

[0005] Therefore, how to ensure the smooth discharge of the concentrate from the tank is a technical problem that urgently needs to be solved. Utility Model Content

[0006] This application provides a water flosser that enables smooth dispensing of concentrated liquid from the tank, thereby improving the reliability of the water flosser.

[0007] This application is achieved through the following technical solution: This application provides a dental flosser, comprising a housing, a concentrate chamber, a needle, a water tank, a pump, a concentrate tube, a suction tube, and a nozzle. An installation cavity is formed inside the housing. The concentrate chamber is detachably connected to the housing and is used to contain concentrate. The concentrate chamber includes a chamber body and a sealing element. The bottom of the chamber body has an opening, which is closed by the sealing element. The needle is connected to the housing and has a drain channel and an air inlet channel. The needle is used to penetrate the sealing element to connect the drain channel and the air inlet channel to the interior of the concentrate chamber. The air inlet channel is connected to the outside for venting air into the concentrate chamber. The water tank is disposed within the installation cavity and is used to store water. The pump is disposed within the installation cavity. The concentrate tube connects the drain channel and the pump inlet. The suction tube connects the water tank and the pump inlet. The nozzle is detachably connected to the housing, and the nozzle inlet connects to the pump outlet.

[0008] The technical solution of this application embodiment balances the air pressure inside the concentrate chamber by setting a drain channel and an air inlet channel on the needle, thus achieving smooth liquid discharge from the concentrate chamber. Furthermore, the water tank and the liquid pump inlet are connected by a water suction pipe, the concentrate pipe is connected by a drain channel and the liquid pump inlet, and the nozzle inlet is connected by a liquid pump outlet. This allows tap water or purified water in the water tank to mix with the concentrate in the concentrate chamber and then be sprayed out by the nozzle, which helps to improve the reliability of the oral irrigator.

[0009] In some embodiments, a mounting groove is formed on the housing, at least a portion of the concentrate chamber is located within the mounting groove, and a pin protrudes from the bottom of the mounting groove.

[0010] The technical solution of this application embodiment improves the reliability and convenience of installing the concentrate tank by setting an installation tank to accommodate the concentrate tank, and reduces the risk of damage to the concentrate tank.

[0011] In some embodiments, the mounting groove includes a first groove and a second groove, the second groove being recessed downward from the bottom of the first groove. At least a portion of the compartment body is located within the first groove. A sealing member protrudes from the bottom of the compartment body, a portion of the sealing member is located within the second groove, and a pin protrudes from the bottom of the second groove.

[0012] The technical solution of this application embodiment provides an installation space for the sealing component by setting a second groove, and sets the pin at the bottom of the second groove, which facilitates the pin to penetrate the sealing component, thereby realizing the smooth discharge of the concentrated liquid from the tank and improving the reliability of the water flosser.

[0013] In some embodiments, the drain channel is connected to the cavity of the second tank, the bottom of the second tank is provided with a drain port that is connected to the cavity, the drain port and the needle are spaced apart at the bottom of the second tank, and the concentrate pipe is used to connect the drain port and the inlet of the liquid pump.

[0014] The technical solution of this application embodiment discharges the concentrate in the drain channel by setting a drain port. At the same time, the drain port and the needle are spaced apart at the bottom of the second tank to reduce the risk of the air intake channel being blocked due to partial overlap between the concentrate pipe and the needle air intake channel. This enables the concentrate to be discharged smoothly from the tank and improves the reliability of the oral irrigator.

[0015] In some embodiments, the drain channel is a groove formed on the outer peripheral surface of the pin, and the air intake channel is a channel formed inside the pin.

[0016] In the technical solution of this application embodiment, the volume of the insert is usually small. By setting a groove on the outer peripheral surface of the insert to form a drain channel and setting a hole in the inside of the insert to form an air intake channel, it is beneficial to improve the structural strength of the insert and reduce the risk of air leakage in the air intake channel.

[0017] In some embodiments, the outer peripheral wall of the housing is provided with an air inlet, and the housing has a connecting channel that connects the air inlet and the air intake passage.

[0018] The technical solution of this application embodiment connects the air inlet and the air inlet channel by setting a connecting channel, thereby balancing the air pressure inside the concentrate tank and realizing the smooth discharge of the concentrate tank, which helps to improve the reliability of the oral irrigator.

[0019] In some embodiments, the air inlet extends obliquely upward from the outer peripheral wall of the housing.

[0020] The technical solution of this application embodiment reduces the risk of liquid on the outer peripheral wall of the shell entering the air passage through the air inlet by setting the air inlet to extend obliquely upward from the outer peripheral wall of the shell, and reduces the risk of the air passage being blocked, thereby enabling the smooth discharge of concentrated liquid from the tank and improving the reliability of the oral irrigator.

[0021] In some embodiments, the oral irrigator further includes a first one-way valve disposed within a communication channel.

[0022] The technical solution of this application embodiment, by setting a first one-way valve in the connecting channel, allows gas to flow only from the connecting channel to the air inlet channel, reducing the risk of the concentrate in the concentrate tank flowing from the air inlet channel to the connecting channel, reducing the risk of the air inlet channel being blocked, and reducing the risk of leakage at the air inlet, thereby achieving smooth liquid discharge from the concentrate tank and improving the reliability of the oral irrigator.

[0023] In some embodiments, the water flosser also includes a plug configured to block the air inlet.

[0024] The technical solution of this application embodiment, by setting a sealing component to block the air inlet, can achieve the situation where no liquid is discharged from the concentrate tank, so that the nozzle of the water flosser only sprays tap water or purified water from the water tank, increasing the usage modes of the water flosser and improving its applicability and practicality.

[0025] In some embodiments, the oral irrigator further includes a first valve disposed within a communication channel for controlling the flow of fluid within the communication channel; and / or, the oral irrigator further includes a second valve disposed within a concentrate tube for controlling the flow of fluid within the concentrate tube.

[0026] The technical solution of this application embodiment controls the flow of fluid in the communication channel by setting a first valve and / or controlling the flow of fluid in the concentrate pipe by setting a second valve, thereby enabling the concentrate chamber to not dispense liquid, so that the nozzle of the water flosser only sprays tap water or purified water from the water tank, increasing the usage modes of the water flosser and improving its applicability and practicality.

[0027] In some embodiments, the sealing element is a soft rubber stopper. The soft rubber stopper is provided with a second one-way valve, and a pin is used to open the second one-way valve to communicate the drain channel and the air inlet channel with the interior of the concentrate chamber; when the pin is separated from the soft rubber stopper, the second one-way valve resets.

[0028] The technical solution of this application embodiment, by setting a second one-way valve, ensures that after the needle pierces the sealing member, the drain channel and air inlet channel are connected to the interior of the concentrate chamber. Furthermore, after the needle separates from the sealing member, the second one-way valve resets to seal the opening of the concentrate chamber. When the concentrate chamber detaches from the housing, the risk of leakage from the concentrate chamber is reduced, thus improving the reliability of concentrate storage and transportation.

[0029] In some embodiments, the second check valve includes at least two valve discs, with a gap formed between adjacent valve discs.

[0030] The technical solution of this application embodiment forms a gap between two adjacent valve discs, which facilitates the insertion of the needle and improves the sealing reliability of the second one-way valve.

[0031] In some embodiments, the oral irrigator further includes an unlock button, a locking element, and a resilient element. The unlock button is movably connected to the housing. The locking element is linked to the unlock button and has a first position preventing the concentrate tank and nozzle from disengaging from the housing and a second position allowing the concentrate tank and nozzle to disengage from the housing. The resilient element connects the housing and the locking element. Pressing the unlock button moves the locking element from the first position to the second position. Releasing the unlock button causes the resilient element to return the locking element from the second position to the first position.

[0032] The technical solution of this application embodiment, by setting the unlock button to be linked with the locking component, enables the concentrated liquid tank and the nozzle to share the unlock button, thereby reducing the number of unlock buttons, improving the compactness of the water flosser structure, and reducing space occupation.

[0033] In some embodiments, the outer peripheral surface of the compartment is provided with a protrusion or a locking groove, and the locking element includes a locking tongue that cooperates with the protrusion or locking groove.

[0034] The technical solution of this application improves the reliability and convenience of releasing and locking the concentrate chamber by setting a locking tongue that cooperates with the protrusion or locking groove of the chamber body.

[0035] In some embodiments, the outer peripheral surface of the nozzle is provided with a convex ring extending circumferentially along the nozzle. The locking member includes a retaining ring fitted onto the nozzle, the inner diameter of the retaining ring being larger than the outer diameter of the convex ring. In a first position, the retaining ring abuts against the convex ring. In a second position, the convex ring is located within the retaining ring, allowing the convex ring to pass through the retaining ring.

[0036] The technical solution of this application embodiment improves the reliability and convenience of releasing and locking the nozzle by setting a convex ring and a retaining ring to cooperate.

[0037] In some embodiments, the unlock button has a first inclined surface, the locking member has a second inclined surface, and the first inclined surface and the second inclined surface slide in engagement.

[0038] The technical solution of this application embodiment improves the reliability and convenience of the linkage between the unlocking button and the locking component by setting a first inclined surface and a second inclined surface to cooperate.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] 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.

[0041] Figure 1 Schematic diagram of a dental flosser provided in some embodiments of this application; Figure 2 Exploded views of the shell and concentrate tank provided for some embodiments of this application; Figure 3 This is a schematic diagram of the internal structure of a water flosser provided in some embodiments of this application; Figure 4 A schematic diagram of the internal structure of a water flosser provided in some embodiments of this application from another perspective; Figure 5 Schematic diagrams of the internal structure of the housing provided in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of the concentrate tank provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the second groove provided in some embodiments of this application; Figure 8 This is a structural schematic diagram of the second groove from another perspective, provided for some embodiments of this application. Figure 9 This is a schematic diagram illustrating the interaction between the insert and the concentrate tank in some embodiments of this application; Figure 10 This is a schematic diagram of the structure of the concentrate tank from another perspective, provided for some embodiments of this application; Figure 11This is a schematic diagram illustrating the interaction between the unlocking button and the locking component in some embodiments of this application; Figure 12 Schematic diagrams of the concentrated liquid tank provided in other embodiments of this application; Figure 13 A schematic diagram illustrating the engagement of a locking element with a concentrate tank according to some embodiments of this application; Figure 14 A schematic diagram illustrating the engagement of a locking element with a concentrate tank, provided for other embodiments of this application; Figure 15 for Figure 11 Enlarged view of point A in the middle.

[0042] Icons: 1-Water flosser; 10-House; 11-Mounting cavity; 12-Mounting groove; 121-First groove; 122-Second groove; 123-Drain port; 13-Connecting channel; 131-First check valve; 14-Air inlet; 20-Concentrate tank; 21-Tank body; 211-Opening; 212-Protrusion; 213-Locking groove; 22-Sealing component; 221-Second check valve; 221a-Valve disc; 2 21b - Gap; 30 - Pin; 31 - Drainage channel; 32 - Air intake channel; 40 - Water tank; 50 - Liquid pump; 60 - Concentrate pipe; 70 - Suction pipe; 80 - Nozzle; 81 - Protruding ring; 90 - Unlock button; 90a - First inclined surface; 91 - Locking element; 911 - Locking tongue; 912 - Snap ring; 913 - Second inclined surface; 92 - Elastic element; X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0045] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication 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.

[0047] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0049] Please refer to Figures 1 to 7 , Figure 1 This is a schematic diagram of a water flosser provided in some embodiments of this application. Figure 2 This is an exploded view of the shell and concentrate tank provided in some embodiments of this application. Figure 3 This is a schematic diagram of the internal structure of a water flosser provided in some embodiments of this application. Figure 4 This is a schematic diagram of the internal structure of a water flosser provided in some embodiments of this application from another perspective. Figure 5 This is a schematic diagram of the internal structure of the housing provided in some embodiments of this application. Figure 6 This is a schematic diagram of the structure of the concentrate tank provided in some embodiments of this application. Figure 7This is a schematic diagram of the structure of the second groove provided in some embodiments of this application. This application provides a dental flosser 1, which includes a housing 10, a concentrate chamber 20, a needle 30, a water tank 40, a pump 50, a concentrate pipe 60, a suction pipe 70, and a nozzle 80. An installation cavity 11 is formed inside the housing 10. The concentrate chamber 20 is detachably connected to the housing 10 and is used to contain concentrate. The concentrate chamber 20 includes a chamber body 21 and a sealing member 22. The bottom of the chamber body 21 has an opening 211, which is closed by the sealing member 22. The needle 30 is connected to the housing 10 and has a drain channel 31 and an air inlet channel 32. The needle 30 is used to insert into the sealing member 22 to communicate with the interior of the concentrate chamber 20. The air inlet channel 32 communicates with the outside and is used to ventilate the interior of the concentrate chamber 20. The water tank 40 is disposed within the installation cavity 11 and is used to store water. The liquid pump 50 is housed within the mounting cavity 11. The concentrate pipe 60 connects the drain channel 31 and the inlet of the liquid pump 50. The suction pipe 70 connects the water tank 40 and the inlet of the liquid pump 50. The nozzle 80 is detachably connected to the housing 10, and the inlet of the nozzle 80 connects to the outlet of the liquid pump 50.

[0050] In some embodiments, the first direction X can be represented by the direction indicated by the letter X in the figure, the second direction Y can be represented by the direction indicated by the letter Y in the figure, and the third direction Z can be represented by the direction indicated by the letter Z in the figure. The first direction X can be parallel to the length direction of the housing 10, the second direction Y can be parallel to the width direction of the housing 10, and the third direction Z can be parallel to the height direction of the housing 10. The first direction X, the second direction Y, and the third direction Z can be perpendicular to each other.

[0051] In some embodiments, a mounting cavity 11 is formed inside the housing 10. The mounting cavity 11 can be integrally formed with the housing 10, or it can be formed by machining after the housing 10 is manufactured.

[0052] In some embodiments, the housing 10 may be made of metal, plastic, or the like. Alternatively, a portion of the housing 10 may be made of metal, and another portion may be made of plastic.

[0053] In some embodiments, the concentrate tank 20 is detachably connected to the housing 10. The concentrate tank 20 can move along a third direction Z. When it is necessary to connect the concentrate tank 20 to the housing 10, the concentrate tank 20 is moved closer to the housing 10 along the third direction Z; when it is necessary to detach the concentrate tank 20 from the housing 10, the concentrate tank 20 is moved away from the housing 10 along the third direction Z.

[0054] By detachably connecting the concentrate tank 20 to the housing 10, the concentrate in the concentrate tank 20 can be replaced to continue supplying concentrate to the water flosser 1 after it is depleted. Compared to fixing the concentrate tank 20 to the housing 10, this solution avoids the risk of concentrate leakage caused by injecting concentrate into the concentrate tank 20. Furthermore, different concentrate tanks 20 can store different types of concentrate. By replacing different concentrate tanks 20, users can change the flavor, efficacy, etc., of the concentrate, improving the practicality of the water flosser 1 and providing a better user experience.

[0055] In some embodiments, the concentrate chamber 20 may extend into the interior of the housing 10 and be connected to the housing 10.

[0056] In some embodiments, the concentrate tank 20 may be connected to the outer surface of the housing 10.

[0057] In some embodiments, the connection between the concentrate tank 20 and the housing 10 can be a snap-fit ​​connection, a bolt connection, a magnetic connection, etc.

[0058] In some embodiments, the concentrate tank 20 may be made of metal, plastic, or other materials.

[0059] In some embodiments, a portion of the concentrate tank 20 may be made of metal, and another portion may be made of plastic.

[0060] In some embodiments, the concentrate tank 20 includes a tank body 21 and a sealing element 22. The tank body 21 may be made of metal or plastic, and the sealing element 22 may be made of rubber or plastic.

[0061] The interior of the container 21 can form a receiving cavity, and the container 21 has an opening 211 communicating with the receiving cavity. The opening 211 and the receiving cavity can be integrally formed with the container 21, or the receiving cavity and the opening 211 can be formed by machining after the container 21 is manufactured. The concentrated liquid (i.e., mouthwash) can be stored in the receiving cavity. After the concentrated liquid is stored in the receiving cavity, the opening 211 is sealed by the sealing member 22 to realize the storage of the concentrated liquid container 20, which facilitates the storage and transportation of the concentrated liquid container 20 and reduces the risk of concentrated liquid leakage.

[0062] The sealing element 22 can close the opening 211 by covering the opening 211 and connecting it to the container body 21 by adhesive. Alternatively, a part of the sealing element 22 can extend into the opening 211 to make an interference fit with the inner wall of the opening 211.

[0063] In some embodiments, the pin 30 may be made of rigid plastic or metal.

[0064] In some embodiments, the pin 30 is connected to the housing 10 by means of adhesive bonding, welding, bolting, etc. Alternatively, the pin 30 can be integrally formed with the housing 10.

[0065] In some embodiments, the insert pin 30 is provided with a drain channel 31 and an air inlet channel 32. The drain channel 31 and the air inlet channel 32 can be integrally formed with the insert pin 30, or they can be formed by machining after the insert pin 30 is formed.

[0066] In some embodiments, the drain channel 31 and the air inlet channel 32 are arranged at intervals.

[0067] In some embodiments, when the concentrate chamber 20 is connected to the housing 10, the needle 30 can pierce the sealing member 22, allowing at least a portion of the needle 30 to extend into the receiving cavity of the chamber 21, thereby communicating the drain channel 31 and the air inlet channel 32 with the receiving cavity. When it is necessary to extract the concentrate from the chamber 21, the concentrate flows out of the chamber 21 through the drain channel 31, and the air inlet channel 32 delivers gas into the receiving cavity of the chamber 21 to balance the air pressure within the receiving cavity of the chamber 21.

[0068] By integrating both the drain channel 31 and the air inlet channel 32 into the pin 30, the structure becomes more compact, avoiding the need to set separate installation spaces for the drain channel 31 and the air inlet channel 32. On the other hand, it avoids setting separate openings 211 for draining and air inlet on the concentrate tank 20, thus reducing the number of openings 211 in the concentrate tank 20. This improves the sealing performance of the concentrate tank 20, facilitates the storage and transportation of the concentrate tank 20, and reduces the risk of leakage from the concentrate tank 20.

[0069] In some embodiments, the air intake passage 32 is connected to the outside, that is, the gas delivered can be air.

[0070] In some embodiments, the air intake channel 32 may also be connected to an additional airbag provided with the oral irrigator 1, and the gas in the airbag may be oxygen or other harmless gases that are insoluble in water.

[0071] In some embodiments, the water tank 40 is disposed within the mounting cavity 11. The water tank 40 may be an additional component. The water tank 40 is disposed within the mounting cavity 11 by means of welding, gluing, bolting, or other methods.

[0072] In some embodiments, the water tank 40 may be part of the housing 10, which is enclosed by several closed inner walls.

[0073] In some embodiments, the water tank 40 may store tap water or purified water.

[0074] In some embodiments, the liquid pump 50 is disposed in the mounting cavity 11, and the liquid pump 50 can be disposed in the mounting cavity 11 by means of welding, gluing, bolting or other methods.

[0075] In some embodiments, the liquid pump 50 may have an inlet and an outlet.

[0076] In some embodiments, the concentrate tube 60 may be made of plastic, rubber, or the like.

[0077] In some embodiments, the suction tube 70 may be made of plastic, rubber, or the like.

[0078] In some embodiments, the materials of the concentrate tube 60 and the suction tube 70 may be the same or different.

[0079] In some embodiments, the concentrate may corrode materials such as plastics, and the inner wall of the concentrate tube 60 may be provided with a coating or other material resistant to concentrate corrosion.

[0080] In some embodiments, the nozzle 80 may be disposed at a distance from the concentrate tank 20 along a first direction X in the housing 10.

[0081] In some embodiments, the nozzle 80 may be movably disposed in the housing 10 along the third direction Z. When it is necessary to install the nozzle 80, the nozzle 80 is moved closer to the housing 10 along the third direction Z, with one end of the nozzle 80 extending into the housing 10. When it is necessary to remove the nozzle 80, the nozzle 80 is moved away from the housing 10 along the third direction Z.

[0082] In some embodiments, the nozzle 80 is connected to the housing 10 by means of bolt fastening, snap-fit ​​connection, or magnetism.

[0083] The technical solution of this application embodiment balances the air pressure inside the concentrate chamber 20 by setting a drain channel 31 and an air inlet channel 32 on the needle 30, so as to achieve smooth liquid discharge from the concentrate chamber 20. Furthermore, the water tank 40 and the liquid pump 50 are connected by a water suction pipe 70, the concentrate pipe 60 is connected by a drain channel 31 and the liquid pump 50, and the liquid inlet of the nozzle 80 is connected by a liquid pump 50. This allows the tap water or purified water in the water tank 40 to mix with the concentrate in the concentrate chamber 20 and then be sprayed out by the nozzle 80, which helps to improve the reliability of the oral irrigator 1.

[0084] Please refer to Figures 1 to 7 In some embodiments, a mounting groove 12 is formed on the housing 10, at least a portion of the concentrate tank 20 is located in the mounting groove 12, and the pin 30 protrudes from the bottom of the mounting groove 12.

[0085] In some embodiments, a mounting groove 12 is formed on the housing 10. The mounting groove 12 can be integrally formed with the housing 10, or it can be formed by machining after the housing 10 is formed.

[0086] In some embodiments, the mounting groove 12 and the mounting cavity 11 are independent of each other and can be separated by the inner wall of the housing 10 to reduce the risk of interference between other components in the mounting cavity 11 and the concentrate tank 20.

[0087] In some embodiments, the mounting slot 12 may be provided with a slot on the third direction Z, through which the concentrate tank 20 enters and exits the mounting slot 12.

[0088] In some embodiments, the pin 30 protrudes from the bottom of the mounting groove 12, that is, when the concentrate tank 20 is disposed in the mounting groove 12, the sealing member 22 is located at the end of the concentrate tank 20 away from the groove opening.

[0089] In some embodiments, the concentrate tank 20 may be partially located within the mounting groove 12 and partially extend outside the mounting groove 12 to facilitate the disassembly of the concentrate tank 20.

[0090] In some embodiments, the concentrate tank 20 may be entirely located within the mounting slot 12.

[0091] The technical solution of this application embodiment, by setting the installation groove 12 to accommodate the concentrate tank 20, helps to improve the reliability and convenience of the installation of the concentrate tank 20 and reduces the risk of the concentrate tank 20 being damaged.

[0092] Please refer to Figures 1 to 7 In some embodiments, the mounting groove 12 includes a first groove 121 and a second groove 122, the second groove 122 being recessed downward from the bottom of the first groove 121. At least a portion of the compartment 21 is located within the first groove 121. A sealing member 22 protrudes from the bottom of the compartment 21, a portion of the sealing member 22 is located within the second groove 122, and a pin 30 protrudes from the bottom of the second groove 122.

[0093] In some embodiments, the first groove 121 and the second groove 122 can be processed separately. For example, the first groove 121 can be processed first, and then the second groove 122 can be processed at the bottom of the first groove 121.

[0094] In some embodiments, the first groove 121 and the second groove 122 can be integrally formed.

[0095] In some embodiments, when the concentrate tank 20 is disposed in the mounting groove 12, the end face of the tank body 21 facing away from the groove opening abuts against the bottom of the first groove portion 121 to limit the concentrate tank 20 in the third direction Z. At this time, the sealing member 22 enters the second groove portion 122.

[0096] In some embodiments, a portion of the sealing member 22 may be located within the second groove 122, and another portion may be located within the chamber 21, i.e., within the first groove 121.

[0097] In some embodiments, the inner diameter of the first groove 121 can match the outer diameter of the chamber 21, so that the chamber 21 is positioned behind the first groove 121, thereby reducing the risk of the chamber 21 shaking.

[0098] It should be noted that, in order to facilitate the movable arrangement of the compartment 21 in the first groove 121, there may be a gap between the outer surface of the compartment 21 and the inner wall surface of the first groove 121.

[0099] The technical solution of this application embodiment provides an installation space for the sealing member 22 by setting a second groove 122, and at the same time, the pin 30 is set at the bottom of the second groove 122, which facilitates the insertion of the pin 30 into the sealing member 22, thereby realizing the smooth discharge of the concentrated liquid tank 20 and improving the reliability of the oral irrigator 1.

[0100] Please refer to Figures 1 to 7 and refer to Figure 8 , Figure 8 This is a structural schematic diagram of the second tank section from another perspective, provided in some embodiments of this application. In some embodiments, the drain channel 31 communicates with the cavity of the second tank section 122, and the bottom of the second tank section 122 is provided with a drain port 123 communicating with the cavity. The drain port 123 and the insertion needle 30 are spaced apart from each other at the bottom of the second tank section 122, and the concentrate pipe 60 is used to connect the drain port 123 and the inlet of the liquid pump 50.

[0101] In some embodiments, the drain channel 31 is connected to the cavity of the second tank 122. The drain channel 31 may have two openings. When the needle 30 is inserted into the concentrate tank 20, one opening is connected to the receiving cavity of the concentrate tank 20, and the other opening is connected to the second tank 122.

[0102] In some embodiments, the drain outlet 123 is disposed on the second groove portion 122. It can be formed integrally with the second groove portion 122, or the drain outlet 123 can be formed by machining after the second groove portion 122 is formed.

[0103] In some embodiments, on the third direction Z, the drain port 123 can penetrate the bottom of the second tank 122, and the concentrate pipe 60 is connected to the end of the drain port 123 away from the concentrate tank 20, thereby realizing the connection between the drain port 123 and the inlet of the liquid pump 50.

[0104] When the needle 30 is inserted into the concentrate chamber 20, the concentrate flows from the opening 211 of the chamber body 21 through the drain channel 31 of the needle 30 to the second tank 122, and then through the drain port 123 and the concentrate pipe 60 to the liquid pump 50.

[0105] It is understandable that the size of the pin 30 is usually small. If the concentrate tube 60 is directly connected to the pin 30, there is a risk that the concentrate tube 60 will block the air intake passage 32. In some embodiments, the drain port 123 is spaced apart from the pin 30, that is, the connection between the concentrate tube 60 and the drain port 123 is spaced apart from the pin 30, thereby reducing the risk of the concentrate tube 60 blocking the air intake passage 32.

[0106] With the first direction X as the projection direction, the orthographic projection of the concentrate tube 60 does not overlap with the orthographic projection of the pin 30.

[0107] The technical solution of this application embodiment discharges the concentrate in the drain channel 31 by setting a drain port 123. At the same time, the drain port 123 and the needle 30 are spaced apart at the bottom of the second tank 122, which reduces the risk of the air inlet channel 32 being blocked due to partial overlap between the concentrate pipe 60 and the air inlet channel 32 of the needle 30. This enables the concentrate tank 20 to discharge smoothly and improves the reliability of the oral irrigator 1.

[0108] Please refer to Figure 7 and Figure 8 In some embodiments, the drain channel 31 is a groove formed on the outer peripheral surface of the pin 30, and the air intake channel 32 is a channel formed inside the pin 30.

[0109] It is understandable that the size of the insert pin 30 is usually small. If both the drain channel 31 and the air inlet channel 32 are formed inside the insert pin 30, the insert pin 30 may be damaged due to insufficient structural strength during air intake and liquid discharge. Therefore, in some embodiments, a groove is formed on the outer peripheral surface of the insert pin 30 to define the drain channel 31, thereby reducing the risk of the concentrated liquid damaging the insert pin 30 due to the impact force within the drain channel 31 during liquid discharge.

[0110] In some embodiments, on the third direction Z, the size of the drainage channel 31 is the same as the size of the pin 30, that is, the pin 30 is disposed at the bottom of the second groove 122, and the drainage channel 31 extends from the end of the pin 30 away from the bottom of the second groove 122 to the bottom of the second groove 122.

[0111] In the technical solution of this application embodiment, the volume of the insert 30 is usually small. By setting a groove on the outer peripheral surface of the insert 30 to form a drain channel 31, and setting a hole in the inside of the insert 30 to form an air intake channel 32, it is beneficial to improve the structural strength of the insert 30 and at the same time reduce the risk of air leakage in the air intake channel 32.

[0112] Please refer to Figures 1 to 8 and refer to Figure 9 , Figure 9 This is a schematic diagram illustrating the interaction between the insert and the concentrate tank in some embodiments of this application. Figure 9 One dashed line indicates the direction of gas flow, and the other dashed line indicates the direction of concentrated liquid flow. In some embodiments, the outer peripheral wall of the housing 10 is provided with an air inlet 14, and the housing 10 has a connecting channel 13 that connects the air inlet 14 and the air inlet channel 32.

[0113] In some embodiments, the air inlet 14 can be integrally formed with the housing 10, or it can be formed by machining after the housing 10 is formed.

[0114] In some embodiments, the connecting channel 13 may be formed by the inner wall of the housing 10 or by the internal cavity of the pipe, with one end of the pipe connected to the air inlet 14 and the other end of the pipe connected to the air inlet channel 32.

[0115] In some embodiments, the air intake channel 32 can pass through both ends of the pin 30 in the third direction Z, and the bottom of the second groove 122 is provided with a through hole, which passes through both ends of the bottom of the second groove 122 in the third direction Z. The through hole connects the air intake channel 32 and the connecting channel 13, thereby realizing the connection between the air intake port 14 and the air intake channel 32.

[0116] When the needle 30 is inserted into the concentrate chamber 20, outside air flows from the air inlet 14 through the connecting channel 13 to the air inlet channel 32, and then through the opening 211 into the receiving cavity of the chamber body 21.

[0117] Compared to setting the air inlet 14 on the top or bottom wall of the housing 10, this embodiment sets the air inlet 14 on the outer peripheral wall of the housing 10, reducing the risk of impurities above or below the water flosser 1 clogging the air inlet 14 when the water flosser 1 is placed.

[0118] The technical solution of this application embodiment connects the air inlet 14 and the air inlet channel 32 through the connecting channel 13, balances the air pressure inside the concentrate tank 20, and realizes the smooth discharge of concentrate tank 20, which helps to improve the reliability of the oral irrigator 1.

[0119] Please refer to Figure 9 In some embodiments, the air inlet 14 extends obliquely upward from the outer peripheral wall of the housing 10.

[0120] In some embodiments, the air inlet 14 is disposed on the outer peripheral wall of the housing 10 and is inclined upward along the third direction Z to the first direction X or the second direction Y.

[0121] The technical solution of this application embodiment reduces the risk of liquid on the outer peripheral wall of the housing 10 entering the air communication channel 13 through the air inlet 14 by setting the air inlet 14 to extend obliquely upward from the outer peripheral wall of the housing 10, and reduces the risk of the air inlet channel 32 being blocked, thereby realizing the smooth discharge of the concentrated liquid tank 20 and improving the reliability of the oral irrigator 1.

[0122] Please refer to Figure 8 and Figure 9 In some embodiments, the oral irrigator 1 further includes a first one-way valve 131 disposed within the communication channel 13.

[0123] In some embodiments, the first one-way valve 131 may be disposed on the side of the communication channel 13 near the intake channel 32.

[0124] In some embodiments, the first one-way valve 131 can allow gas to flow from the inlet 14 through the connecting channel 13 to the inlet channel 32, and prevent gas or concentrate from the concentrate tank 20 from flowing from the inlet channel 32 through the connecting channel 13 to the inlet 14.

[0125] The technical solution of this application embodiment, by setting a first one-way valve 131 in the connecting channel 13, allows gas to flow only from the connecting channel 13 to the air inlet channel 32, reducing the risk of the concentrated liquid in the concentrated liquid tank 20 flowing from the air inlet channel 32 to the connecting channel 13, reducing the risk of the air inlet channel 32 being blocked, and reducing the risk of leakage from the air inlet 14, thereby achieving smooth liquid discharge from the concentrated liquid tank 20 and improving the reliability of the oral irrigator 1.

[0126] Please refer to Figures 7 to 9 In some embodiments, the oral irrigator 1 also includes a plug (not shown) configured to block the air inlet 14.

[0127] In some embodiments, the sealing element can be movably disposed on the housing 10. For example, the sealing element can be a sealing cap, connected to the housing 10 via a pivot, or slidably disposed on the housing 10 via a slide rail.

[0128] When the nozzles 80 of the oral irrigator 1 are required to spray only tap water or purified water from the water tank 40, the air inlet 14 is blocked by the sealing component, preventing air from entering the concentrate tank 20 and thus preventing liquid from exiting the concentrate tank 20. Therefore, the nozzles 80 of the oral irrigator 1 will only spray tap water or purified water from the water tank 40. When the oral irrigator 1 needs to spray a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate tank 20, the sealing component opens the air inlet 14, allowing air to enter the concentrate tank 20 and enabling liquid to exit the concentrate tank 20. Therefore, the oral irrigator 1 will spray a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate tank 20.

[0129] The technical solution of this application embodiment, by setting a sealing component to block the air inlet 14, can achieve the situation where the concentrate tank 20 does not dispense liquid, so that the nozzle 80 of the water flosser 1 only sprays tap water or purified water from the water tank 40, increasing the usage modes of the water flosser 1 and improving the applicability and practicality of the water flosser 1.

[0130] Please refer to Figures 1 to 9 In some embodiments, the oral irrigator 1 further includes a first valve (not shown in the figure), which is disposed in the communication channel 13 and is used to control the flow of fluid in the communication channel 13; and / or, the oral irrigator 1 further includes a second valve (not shown in the figure), which is disposed in the concentrate pipe 60 and is used to control the flow of fluid in the concentrate pipe 60.

[0131] In some embodiments, a first valve is disposed within the connecting channel 13. When the nozzle 80 of the oral irrigator 1 is required to spray only tap water or purified water from the water tank 40, the first valve blocks the gas in the connecting channel 13, preventing air from entering the concentrate tank 20 through the air inlet 14, thus preventing liquid from exiting the concentrate tank 20. Consequently, the nozzle 80 of the oral irrigator 1 sprays only tap water or purified water from the water tank 40. When the oral irrigator 1 is required to spray a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate tank 20, the first valve allows the gas in the connecting channel 13 to flow through, allowing air to enter the concentrate tank 20 through the air inlet 14, thus preventing liquid from exiting the concentrate tank 20. Consequently, the oral irrigator 1 sprays a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate tank 20.

[0132] In some embodiments, a second valve is disposed within the concentrate pipe 60. When the nozzle 80 of the oral irrigator 1 is required to spray only tap water or purified water from the water tank 40, the second valve blocks the concentrate in the concentrate pipe 60, preventing liquid from exiting the concentrate chamber 20, thus allowing the nozzle 80 of the oral irrigator 1 to spray only tap water or purified water from the water tank 40. When the oral irrigator 1 is required to spray a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate chamber 20, the second valve allows the concentrate in the concentrate pipe 60 to flow, enabling liquid to exit the concentrate chamber 20, thus allowing the oral irrigator 1 to spray a mixture of tap water or purified water from the water tank 40 and the concentrate in the concentrate chamber 20.

[0133] In some embodiments, the oral irrigator 1 may be equipped with a first valve.

[0134] In some embodiments, the oral irrigator 1 may be equipped with a second valve.

[0135] In some embodiments, the oral irrigator 1 may be provided with both a first valve and a second valve.

[0136] The technical solution of this application embodiment controls the flow of fluid in the communication channel 13 by setting a first valve and / or controls the flow of fluid in the concentrate pipe 60 by setting a second valve, thereby enabling the concentrate tank 20 to not dispense liquid, so that the nozzle 80 of the oral irrigator 1 only sprays tap water or purified water from the water tank 40, increasing the usage modes of the oral irrigator 1 and improving its applicability and practicality.

[0137] Please refer to Figures 1 to 9 and refer to Figure 10 , Figure 10 This is a structural schematic diagram of the concentrate tank provided in some embodiments of this application from another perspective. In some embodiments, the sealing member 22 is a soft rubber stopper. The soft rubber stopper is provided with a second one-way valve 221, and the insert pin 30 is used to open the second one-way valve 221 so that the drain channel 31 and the air inlet channel 32 are connected to the interior of the concentrate tank 20; when the insert pin 30 is separated from the soft rubber stopper, the second one-way valve 221 is reset.

[0138] In some embodiments, the sealing member 22 may be a soft rubber stopper extending in the third direction Z, with one end of the soft rubber stopper connected to the chamber body 21 and the other end having a second one-way valve 221. The second one-way valve 221 may be the end face of the soft rubber stopper and is integrally formed with the soft rubber stopper.

[0139] In some embodiments, after the concentrate chamber 20 is installed on the housing 10, the needle 30 pierces the sealing member 22, causing the sealing member 22 to create a crack for the needle 30 to extend into the receiving cavity of the chamber body 21, thereby enabling the drain channel 31 and the air inlet channel 32 to communicate with the receiving cavity of the chamber body 21. When the concentrate in the receiving cavity is consumed, or when the user needs to change to a different flavor of concentrate, the concentrate chamber 20 is removed from the housing 10, the needle 30 disengages from the soft rubber stopper, the second valve resets, and the soft rubber stopper seals the opening 211 of the chamber body 21, reducing the risk of concentrate leakage from the receiving cavity.

[0140] The technical solution of this application embodiment, by setting a second one-way valve 221, allows the drain channel 31 and air inlet channel 32 to communicate with the interior of the concentrate tank 20 after the needle 30 pierces the sealing member 22. Furthermore, after the needle 30 separates from the sealing member 22, the second one-way valve 221 resets to seal the opening 211 of the concentrate tank 20. When the concentrate tank 20 detaches from the housing 10, the risk of leakage from the concentrate tank 20 is reduced, which helps improve the reliability of the concentrate tank 20's storage and transportation.

[0141] Please refer to Figure 10 In some embodiments, the second one-way valve 221 includes at least two valve discs 221a, with a gap 221b formed between two adjacent valve discs 221a.

[0142] In some embodiments, the number of valve discs 221a can be two, three, four, etc.

[0143] In some embodiments, one end of the slit 221b may extend to the edge of the soft rubber stopper.

[0144] In some embodiments, both ends of the slit 221b may extend to the edge of the soft rubber stopper.

[0145] In some embodiments, neither end of the slit 221b may extend to the edge of the soft rubber stopper, i.e., adjacent valves are connected to each other.

[0146] In some embodiments, the second one-way valve 221 can be the end face of a soft rubber stopper, and the gap 221b can be a thinned pre-compression gap compared to the valve disc 221a. When the concentrate chamber 20 is installed on the housing 10, the pin 30 pierces the sealing member 22, causing the pin 30 to pierce the gap 221b, thereby enabling the drain channel 31 and the air inlet channel 32 to communicate with the receiving cavity of the chamber 21. When the concentrate in the receiving cavity is consumed, or when the user needs to change to a different flavor of concentrate, the concentrate chamber 20 is removed from the housing 10, the pin 30 is released from the soft rubber stopper, the gap 221b is restored, and the soft rubber stopper seals the opening 211 of the chamber 21, reducing the risk of concentrate leakage from the receiving cavity.

[0147] In some embodiments, the end of the sealing member 22 facing away from the chamber body 21 may be provided with a groove, and the second one-way valve 221 may be the bottom of the groove, thereby reducing the risk of the second one-way valve 221 being damaged and causing leakage of concentrate during the storage or transportation of concentrate chamber 20.

[0148] The technical solution of this application embodiment forms a gap 221b between two adjacent valve discs 221a, which facilitates the insertion of the insertion pin 30 and improves the sealing reliability of the second one-way valve 221.

[0149] Please refer to Figure 11 , Figure 11 This is a schematic diagram illustrating the interaction between an unlocking button and a locking member according to some embodiments of this application. In some embodiments, the oral irrigator 1 further includes an unlocking button 90, a locking member 91, and an elastic member 92. The unlocking button 90 is movably connected to the housing 10. The locking member 91 is linked to the unlocking button 90, and has a first position preventing the concentrate tank 20 and the nozzle 80 from disengaging from the housing 10, and a second position allowing the concentrate tank 20 and the nozzle 80 to disengage from the housing 10. The elastic member 92 connects the housing 10 and the locking member 91. Pressing the unlocking button 90 causes the locking member 91 to move from the first position to the second position. Releasing the unlocking button 90 causes the elastic member 92 to drive the locking member 91 back to the first position from the second position.

[0150] In some embodiments, the unlock button 90 is movably connected to the housing 10, and the unlock button 90 is movable relative to the housing 10 along the second direction Y.

[0151] In some embodiments, the locking member 91 is movably connected to the housing 10, and the locking member 91 is movable relative to the housing 10 along a first direction X.

[0152] In some embodiments, the locking member 91 is linked to the unlocking button 90. When the unlocking button 90 is pressed, the unlocking button 90 can move along the second direction Y to drive the locking member 91 to move along the first direction X, so that the locking member 91 moves from the first position to the second position. At this time, the elastic member 92 is compressed or stretched. When the unlocking button 90 is released, the elastic member 92 resets, driving the locking member 91 to reset along the first direction X and move from the second position to the first position. At the same time, it drives the unlocking button 90 to move along the second direction Y and resets the unlocking button 90.

[0153] In some embodiments, the elastic element 92 may be a spring, torsion spring, etc.

[0154] In some embodiments, the elastic element 92 can connect the housing 10 and the locking element 91 by snap-fitting, welding, or other methods.

[0155] The technical solution of this application embodiment, by setting the unlock button 90 to be linked with the locking member 91, enables the concentrated liquid tank 20 and the nozzle 80 to share the unlock button 90, thereby reducing the number of unlock buttons 90, improving the compactness of the water flosser 1 structure, and reducing space occupation.

[0156] Please refer to Figure 6 and Figure 11 and refer to Figures 12 to 14 , Figure 12 This is a schematic diagram of the structure of the concentrate tank provided in other embodiments of this application. Figure 13 This is a schematic diagram illustrating the cooperation between the locking element and the concentrate tank provided in some embodiments of this application. Figure 14 This is a schematic diagram illustrating the engagement of a locking element with a concentrate tank according to other embodiments of this application. In some embodiments, the outer peripheral surface of the tank body 21 is provided with a protrusion 212 or a locking groove 213, and the locking element 91 includes a locking tongue 911 that engages with the protrusion 212 or the locking groove 213.

[0157] In some embodiments, the outer peripheral surface of the hopper 21 may be provided with a protrusion 212. The protrusion 212 may be integrally formed with the hopper 21, or it may be formed by machining after the hopper 21 is machined, or the hopper 21 and the protrusion 212 may be connected by welding or gluing after machining.

[0158] In some embodiments, when the locking member 91 is in the first position, one end of the locking member 91 in the first direction X, that is, the locking tongue 911, abuts against the upper surface of the protrusion 212 in the third direction Z to prevent the concentrate tank 20 from detaching from the housing 10.

[0159] In some embodiments, the outer peripheral surface of the chamber 21 may be provided with a locking groove 213. The locking groove 213 may be integrally formed with the chamber 21, or it may be formed by machining after the chamber 21 is manufactured.

[0160] In some embodiments, when the locking member 91 is in the first position, one end of the locking member 91 in the first direction X, namely the locking tongue 911, extends into the locking groove 213 and abuts against the lower surface of the locking groove 213 in the third direction Z, so as to prevent the concentrate tank 20 from detaching from the housing 10.

[0161] In some embodiments, the latch 911 can be one end of the locking member 91 in the first direction X. The cross section of the latch 911 can be the same as the cross section of other parts of the locking member 91. Alternatively, the end of the locking member 91 in the first direction X can be milled into a bevel to form the latch 911, so as to facilitate abutment with the groove or protrusion 212.

[0162] It should be noted that, in the third direction Z, no elastic component is provided below the concentrate tank 20. That is, when the locking member 91 moves from the first position to the second position, the concentrate tank 20 will still not pop out of the housing 10 when only the nozzle 80 needs to be replaced. When the concentrate tank 20 is installed in the housing 10, a portion of the concentrate tank 20 can extend out of the housing 10 in the third direction Z to facilitate the removal and installation of the concentrate tank 20. Similarly, when the nozzle 80 is installed in the housing 10, a portion of the nozzle 80 can extend out of the housing 10 in the third direction Z to facilitate the removal and installation of the concentrate tank 20 and the dispensing of the nozzle 80.

[0163] The technical solution of this application embodiment improves the reliability and convenience of releasing and locking the concentrated liquid tank 20 by setting the locking tongue 911 to cooperate with the protrusion 212 or groove of the tank body 21.

[0164] Please refer to Figure 11 and Figure 14 In some embodiments, the outer peripheral surface of the nozzle 80 is provided with a protruding ring 81, which extends circumferentially along the nozzle 80. The locking member 91 includes a retaining ring 912, which is sleeved on the nozzle 80. The inner diameter of the retaining ring 912 is larger than the outer diameter of the protruding ring 81. In a first position, the retaining ring 912 abuts against the protruding ring 81. In a second position, the protruding ring 81 is located inside the retaining ring 912, allowing the protruding ring 81 to pass through the retaining ring 912.

[0165] In some embodiments, a protruding ring 81 is provided on the outer peripheral surface of the nozzle 80, and the protruding ring 81 can be integrally formed with the nozzle 80. Alternatively, after the nozzle 80 is formed, the protruding ring 81 can be machined on the outer peripheral surface of the nozzle 80 by means of machining.

[0166] In some embodiments, the locking member 91 has a retaining ring 912 at one end facing away from the concentrate tank 20 in the first direction X. The retaining ring 912 can be integrally formed with the locking member 91, or it can be formed by machining after the locking member 91 is manufactured.

[0167] In some embodiments, when the nozzle 80 is connected to the housing 10, the locking member 91 is in a first position, where the lower surface of the retaining ring 912 abuts against the upper surface of the protruding ring 81 in the third direction Z, preventing the nozzle 80 from disengaging from the housing 10. When the locking member 91 is in a second position, the retaining ring 912 moves along the first direction X, such that the protruding ring 81 is located within the retaining ring 912, allowing the protruding ring 81 to pass through the retaining ring 912 when the nozzle 80 is disassembled.

[0168] It should be noted that, on the third direction Z, no elastic component is provided below the nozzle 80. That is, when the locking component 91 moves from the first position to the second position, the nozzle 80 will still not pop out of the housing 10 when only the concentrate tank 20 needs to be replaced.

[0169] The technical solution of this application embodiment improves the reliability and convenience of releasing and locking the nozzle 80 by setting the convex ring 81 to cooperate with the retaining ring 912.

[0170] Please refer to Figure 11 and Figure 15 , Figure 15 for Figure 11 Enlarged view at point A. In some embodiments, the unlock button 90 has a first inclined surface 90a, and the locking member 91 has a second inclined surface 913, with the first inclined surface 90a and the second inclined surface 913 in sliding engagement.

[0171] In some embodiments, the unlock button 90 has a first inclined surface 90a, which may intersect with a first direction X and a second direction Y.

[0172] In some embodiments, the locking member 91 has a second inclined surface 913, which may intersect with the first direction X and the second direction Y.

[0173] In some embodiments, the first inclined surface 90a cooperates with the second inclined surface 913. When the unlock button 90 is pressed, the unlock button 90 can move along the second direction Y to drive the locking member 91 to move along the first direction X, causing the first inclined surface 90a to move along the first direction X. The first inclined surface 90a pushes the second inclined surface 913 to move along the second direction Y, causing the locking member 91 to move from the first position to the second position. At this time, the elastic member 92 is compressed or stretched. When the unlock button 90 is released, the elastic member 92 resets, driving the locking member 91 to reset along the first direction X and move from the second position to the first position, causing the second inclined surface 913 to move along the first direction X. The second inclined surface 913 pushes the first inclined surface 90a to move along the second direction Y, driving the unlock button 90 to reset.

[0174] The technical solution of this application embodiment improves the reliability and convenience of the linkage between the unlock button 90 and the locking member 91 by setting the first inclined surface 90a and the second inclined surface 913 in cooperation.

[0175] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dental flosser, characterized in that, include: The housing has an internal mounting cavity; A concentrate tank is detachably connected to the housing. The concentrate tank is used to contain concentrate. The concentrate tank includes a tank body and a sealing element. The bottom of the tank body is provided with an opening. The sealing element closes the opening. A pin is connected to the housing. The pin has a drain channel and an air inlet channel. The pin is used to insert into the sealing member so that the drain channel and the air inlet channel are connected to the interior of the concentrate chamber. The air inlet channel is connected to the outside and is used to ventilate the interior of the concentrate chamber. A water tank is disposed within the mounting cavity, and the water tank is used for storing water; A liquid pump is disposed within the mounting cavity; A concentrate pipe is used to connect the drain channel and the inlet of the liquid pump; A suction pipe is used to connect the water tank and the inlet of the liquid pump; A nozzle is detachably connected to the housing, and the inlet of the nozzle is connected to the outlet of the liquid pump.

2. The oral irrigator according to claim 1, characterized in that, An installation groove is formed on the housing, at least a portion of the concentrate chamber is located in the installation groove, and the pin protrudes from the bottom of the installation groove.

3. The oral irrigator according to claim 2, characterized in that, The mounting groove includes a first groove and a second groove, wherein the second groove is recessed downward from the bottom of the first groove. At least a portion of the hopper is located within the first trough. The sealing element protrudes from the bottom of the chamber body, a portion of the sealing element is located within the second groove, and the insertion pin protrudes from the bottom of the second groove.

4. The oral irrigator according to claim 3, characterized in that, The drain channel is connected to the cavity of the second tank. The bottom of the second tank is provided with a drain port that is connected to the cavity. The drain port and the needle are spaced apart at the bottom of the second tank. The concentrate pipe is used to connect the drain port and the inlet of the liquid pump.

5. The oral irrigator according to claim 3, characterized in that, The drainage channel is a groove formed on the outer peripheral surface of the pin, and the air intake channel is a channel formed inside the pin.

6. The oral irrigator according to claim 1, characterized in that, The outer peripheral wall of the housing is provided with an air inlet, and the housing has a connecting channel that connects the air inlet and the air intake channel.

7. The oral irrigator according to claim 6, characterized in that, The air inlet extends obliquely upward from the outer peripheral wall of the housing.

8. The oral irrigator according to claim 6, characterized in that, The oral irrigator also includes a first one-way valve, which is disposed within the communicating channel.

9. The oral irrigator according to claim 6, characterized in that, The water flosser also includes a sealing element configured to block the air inlet.

10. The oral irrigator according to claim 6, characterized in that, The oral irrigator further includes a first valve disposed within the communicating channel for controlling the flow of fluid within the communicating channel; and / or, The oral irrigator also includes a second valve, which is disposed inside the concentrate pipe and is used to control the flow of fluid in the concentrate pipe.

11. The oral irrigator according to claim 1, characterized in that, The sealing component is a soft rubber stopper; The soft rubber stopper is equipped with a second one-way valve, and the pin is used to open the second one-way valve so that the drain channel and the air inlet channel are connected to the interior of the concentrate chamber; when the pin is separated from the soft rubber stopper, the second one-way valve is reset.

12. The oral irrigator according to claim 11, characterized in that, The second one-way valve includes at least two valve discs, with a gap formed between two adjacent valve discs.

13. The oral irrigator according to claim 1, characterized in that, The oral irrigator also includes: The unlock button is movably connected to the housing. A locking element, linked to the unlocking button, has a first position preventing the concentrate tank and the nozzle from disengaging from the housing and a second position allowing the concentrate tank and the nozzle to disengage from the housing; An elastic element connects the housing and the locking element; Pressing the unlock button causes the locking member to move from the first position to the second position. When the unlock button is released, the elastic element drives the locking element to reset from the second position to the first position.

14. The oral irrigator according to claim 13, characterized in that, The outer peripheral surface of the compartment is provided with a protrusion or a locking groove, and the locking element includes a locking tongue that cooperates with the protrusion or the locking groove.

15. The oral irrigator according to claim 13, characterized in that, The nozzle has a convex ring on its outer peripheral surface, the convex ring extends along the circumference of the nozzle, and the locking member includes a retaining ring, the retaining ring is sleeved on the nozzle, and the inner diameter of the retaining ring is larger than the outer diameter of the convex ring; In the first position, the retaining ring abuts against the convex ring; In the second position, the protruding ring is located inside the retaining ring so that the protruding ring can pass through the retaining ring.

16. The oral irrigator according to claim 13, characterized in that, The unlock button has a first inclined surface, and the locking member has a second inclined surface, with the first inclined surface and the second inclined surface slidingly engaged.

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