Water channel structure of water flosser and water flosser

Abstract

The present application discloses a water circuit structure of a water flosser and a water flosser. The water circuit structure includes a nozzle, a water tank, a functional liquid tank, a water liquid flow path, a functional liquid flow path and a first pump body. The water storage chamber of the water tank is connected to the nozzle through the water liquid flow path. The functional liquid chamber of the functional liquid tank is connected to the water liquid flow path through the functional liquid flow path. The first pump body is installed on the water liquid flow path and is used to transport the water liquid in the water storage chamber to the water liquid flow path. The first pump body is also used to transport the functional liquid in the functional liquid chamber to the water liquid flow path through the functional liquid flow path, so that the functional liquid is mixed with the water liquid to form a mixed liquid, and the mixed liquid is ejected through the nozzle of the nozzle. The present application can realize the delivery of the functional liquid in the functional liquid tank and the water liquid in the water tank by setting a first pump body, so that the water liquid and the functional liquid can be ejected from the nozzle under the drive of the first pump body, reducing the number of parts, improving production efficiency, and facilitating operation.

Description

Technical Field

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

[0002] An oral irrigator is an oral care tool that uses the principle of a water pump to generate high pressure and pulsed water flow to flush the teeth and gums in the mouth. It can effectively clean the gaps between teeth and gingival sulci, remove tiny food residues, stains, and tartar adhering to the teeth and gums, and achieve the function of oral health care.

[0003] However, in the related art, when it is necessary to remove bacteria or bad breath in the oral cavity, a cleaning liquid such as mouthwash needs to be poured into the water tank of the irrigator, and the clean water in the water tank is mixed with the cleaning liquid to form a mixed liquid. The pump body of the irrigator then transports the mixed liquid to the nozzle for spraying, thereby rinsing and cleaning the oral cavity. The operation is cumbersome and the user experience is poor. Utility Model Content

[0004] The present application provides a water channel structure of a water irrigator and a water irrigator, which can solve the problem of inconvenient operation of conveying a mixed liquid by the water irrigator.

[0005] In a first aspect, the present application provides a water channel structure of a water flosser, comprising:

[0006] A nozzle having a spout;

[0007] A water tank having a water storage chamber for storing water;

[0008] A functional liquid tank having a functional liquid cavity for storing the functional liquid;

[0009] A water flow path, through which the water storage chamber is connected to the nozzle;

[0010] A functional liquid flow path, wherein the functional liquid cavity is connected to the water liquid flow path through the functional liquid flow path;

[0011] The first pump body is installed in the water flow path. The first pump body is used to transport the water in the water storage chamber to the water flow path. The first pump body is also used to transport the functional liquid in the functional liquid chamber to the water flow path through the functional liquid flow path, so that the functional liquid and the water are mixed to form a mixed liquid, and the mixed liquid is sprayed out through the nozzle.

[0012] In some exemplary embodiments, the aqueous fluid path comprises:

[0013] a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body;

[0014] a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle;

[0015] Wherein, the functional liquid flow path is communicated with the first pipeline, and / or the functional liquid flow path is communicated with the second pipeline.

[0016] In some exemplary embodiments, the water liquid flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle;

[0017] Wherein, the oral irrigator further comprises a first multi-channel tube, the first multi-channel tube comprising a first interface connected to the first pipeline, a second interface connected to the functional liquid flow path, and a third interface connected to and fixed to the pump body liquid inlet; and / or,

[0018] The functional liquid flow path is connected to the second pipeline, and the oral irrigator also includes a second multi-channel tube, which includes a fourth interface connected to the second pipeline, a fifth interface connected to the functional liquid flow path, and a sixth interface connected to and fixed to the liquid outlet of the pump body.

[0019] In some exemplary embodiments, the water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the water flosser further includes:

[0020] A first one-way valve is arranged at the liquid inlet of the pump body and is located downstream of the connection position between the functional liquid flow path and the first pipeline. The first one-way valve allows the first pipeline to be unidirectionally connected from the water storage chamber to the liquid inlet of the pump body.

[0021] In some exemplary embodiments, the water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the water flosser further includes:

[0022] a second one-way valve, the second one-way valve being disposed on the first pipeline, the second one-way valve allowing the first pipeline to be unidirectionally connected from the water storage chamber to the liquid inlet of the pump body;

[0023] A third one-way valve is provided on the functional liquid flow path, and the third one-way valve enables the functional liquid flow path to be unidirectionally conducted from the functional liquid cavity to the liquid inlet of the pump body.

[0024] In some exemplary embodiments, the water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, the functional liquid flow path is connected with the second pipeline, and the water flosser further includes:

[0025] A fourth one-way valve is arranged at the liquid outlet of the pump body and is located upstream of the connection position between the functional liquid flow path and the second pipeline. The fourth one-way valve allows the second pipeline to be unidirectionally connected from the liquid outlet of the pump body to the nozzle.

[0026] In some exemplary embodiments, the water liquid flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the functional liquid flow path connects the second pipeline;

[0027] Wherein, the diameter of the second pipeline at the position connected with the functional liquid flow path is smaller than the diameter of the liquid outlet of the pump body.

[0028] In some exemplary embodiments, the water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, the functional liquid flow path is connected with the second pipeline, and the second pipeline includes:

[0029] a nozzle pipe, connected to the nozzle;

[0030] A pump body pipeline, connecting the nozzle pipeline with the liquid outlet of the pump body;

[0031] Wherein, the functional liquid flow path is communicated with the pump body pipeline, and the communication position between the functional liquid flow path and the pump body pipeline is located upstream of the nozzle pipeline.

[0032] In some exemplary embodiments, the oral irrigator further comprises:

[0033] an isolating member, disposed in the functional liquid chamber, the isolating member divides the functional liquid chamber into a first cavity and a second cavity isolated from each other, the first cavity is used to store the functional liquid, and the functional liquid flow path is connected to the first cavity;

[0034] a branch flow channel, the branch flow channel connecting the water flow channel with the second cavity;

[0035] In which, at least part of the isolation element is movable relative to the functional liquid tank. When the first pump body is in operation, part of the water or mixed liquid flowing out from the liquid outlet of the pump body flows into the second cavity through the branch flow channel, so that at least part of the isolation element moves toward the first cavity to squeeze the functional liquid in the first cavity into the functional liquid flow path.

[0036] In some exemplary embodiments, the aqueous fluid path comprises:

[0037] a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body;

[0038] a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle;

[0039] Wherein, the functional liquid flow path is connected to the first pipeline, and the branch flow channel connects the second pipeline with the second cavity.

[0040] In some exemplary embodiments, a first throttle valve is disposed on the second pipeline, and the first throttle valve is located downstream of a communication position between the branch flow channel and the second pipeline.

[0041] In some exemplary embodiments, the aqueous fluid path comprises:

[0042] a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body;

[0043] a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle;

[0044] The functional liquid flow path is connected to the second pipeline, the branch channel connects the second pipeline to the second cavity, and the connection position of the branch channel and the second pipeline is located upstream of the connection position of the functional liquid flow path and the second pipeline.

[0045] In some exemplary embodiments, a second throttle valve is provided on the second pipeline, and the front end of the second throttle valve is located downstream of the connection position between the branch flow channel and the second pipeline, and the rear end of the second throttle valve is located upstream of the connection position between the functional fluid flow path and the second pipeline.

[0046] In some exemplary embodiments, the isolation member is a damping piston, a peripheral side of the damping piston is in contact with a cavity wall of the functional fluid cavity, and the damping piston is capable of sliding relative to the functional fluid tank.

[0047] In some exemplary embodiments, the isolating member is an elastic water-isolating membrane, and a peripheral side of the elastic water-isolating membrane is fixedly connected to a cavity wall of the functional liquid cavity.

[0048] In some exemplary embodiments, the volume of the functional liquid tank is smaller than the volume of the water tank, and the capacity of the functional liquid chamber is smaller than the capacity of the water storage chamber.

[0049] In some exemplary embodiments, a third throttle valve is disposed on the functional fluid flow path.

[0050] In some exemplary embodiments, the functional liquid tank is provided with an air vent, and the air vent connects the functional liquid cavity with the atmosphere.

[0051] In some exemplary embodiments, a first waterproof breathable membrane is provided at the air hole.

[0052] In a second aspect, the present application provides a water flosser, comprising a shell and the water channel structure as described above, wherein the water channel structure is located inside the shell.

[0053] In some exemplary embodiments, the oral irrigator further includes an inlet flow channel, which is located in the shell, and an air vent is provided on the outer surface of the shell. The inlet flow channel is connected to the air vent to connect the functional liquid chamber with the atmosphere.

[0054] In some exemplary embodiments, a second waterproof breathable membrane is provided at the vent.

[0055] The beneficial effects of the present application are as follows: by setting a first pump body, the functional liquid in the functional liquid tank and the water in the water tank can be transported, so that the water and the functional liquid can be ejected from the nozzle under the drive of the first pump body, reducing the number of parts and improving production efficiency. There is no need to mix the water and the functional liquid in advance, and there is no need to manually add the functional liquid to the water, which is easy to operate. The functional liquid flow path for transporting the functional liquid is connected to the water liquid flow path for transporting the water liquid, so that the functional liquid and the water are mixed into a mixed liquid in the water liquid flow path under the drive of the first pump body, and then ejected from the nozzle of the nozzle. Under the drive of the first pump body, the water and the functional liquid can be evenly mixed, and after being ejected from the nozzle, they act on the corresponding part of the cavity, which can better improve the oral environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0057] Figure 1 This is a schematic diagram of the three-dimensional structure of a water flosser according to an embodiment of the present application;

[0058] Figure 2 A schematic diagram of the three-dimensional structure of the water channel structure of the oral irrigator according to an embodiment of the present application;

[0059] Figure 3a This is a schematic diagram of a three-dimensional structure in which a functional liquid flow path is connected to a first pipeline according to an embodiment of the present application;

[0060] Figure 3b A schematic diagram of the flow direction of the functional fluid flow path connected to the first pipeline in one embodiment of the present application;

[0061] Figure 4 A schematic diagram of the flow of fluid in a water channel structure provided with a first one-way valve according to an embodiment of the present application;

[0062] Figure 5 A schematic diagram of the flow of fluid in a water channel structure according to an embodiment of the present application provided with a second one-way valve and a third one-way valve;

[0063] Figure 6a This is a schematic diagram of a three-dimensional structure in which a functional liquid flow path is connected to a second pipeline according to an embodiment of the present application;

[0064] Figure 6b A schematic diagram of the flow direction of the fluid in which the functional fluid flow path is connected to the second pipeline in one embodiment of the present application;

[0065] Figure 7 This is a schematic diagram of a three-dimensional structure in which a second pipeline according to an embodiment of the present application includes a nozzle pipeline and a pump pipeline;

[0066] Figure 8a It is a schematic diagram of a three-dimensional structure in which a branch channel is connected to a second pipeline and a functional liquid flow path is connected to a first pipeline according to an embodiment of the present application;

[0067] Figure 8b A schematic diagram of the flow direction of the fluid in which the branch flow channel is connected to the second pipeline and the functional liquid flow path is connected to the first pipeline in one embodiment of the present application;

[0068] Figure 9a This is a schematic diagram of a three-dimensional structure in which both the branch channel and the functional liquid channel are connected to the second pipeline in one embodiment of the present application;

[0069] Figure 9b A schematic diagram of the flow direction of the fluid in which both the branch flow channel and the functional fluid flow channel are connected to the second pipeline in one embodiment of the present application;

[0070] Fig.10 This is a schematic diagram of the flow of fluid in a functional liquid tank of a water channel structure according to an embodiment of the present application having air holes.

[0071] Reference numerals:

[0072] 10. Water channel structure of the water flosser; 20. Water flosser; 21. Shell;

[0073] 100, nozzle; 110, nozzle;

[0074] 200, water tank;

[0075] 300, functional liquid tank; 310, functional liquid cavity; 311, first cavity; 312, second cavity; 320, isolation element; 330, air vent; 340, air inlet passage;

[0076] 400, water flow path; 410, first pipeline; 420, second pipeline; 421, nozzle pipeline; 422, pump pipeline; 4221, first docking pipeline section; 4222, second docking pipeline section;

[0077] 500, first pump body; 510, pump body liquid inlet; 520, pump body liquid outlet;

[0078] 610, first multi-channel tube; 611, first interface; 612, second interface; 613, third interface;

[0079] 620, second multi-channel tube; 621, fourth interface; 622, fifth interface; 623, sixth interface;

[0080] 630, third multi-channel tube; 631, main interface; 632, first sub-interface; 633, second sub-interface;

[0081] 700, functional fluid flow path;

[0082] 800, branch flow channel;

[0083] 910, first one-way valve; 911, second one-way valve; 912, third one-way valve; 913, fourth one-way valve; 917, first waterproof breathable membrane. DETAILED DESCRIPTION

[0084] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0085] The inventor found that pouring a cleaning liquid such as mouthwash into the water tank of the water flosser 10, mixing the clean water in the water tank with the cleaning liquid to form a mixed liquid, and then the pump body of the water flosser 10 transports the mixed liquid to the nozzle for spraying, and then the oral cavity is rinsed and cleaned, which is cumbersome to operate. Based on this, the embodiment of the present application provides a water channel structure of the water flosser 10 and the water flosser 10.

[0086] like Figure 1FIG. 1 is a schematic diagram of the three-dimensional structure of a water flosser 10 according to an embodiment of the present application. Figure 2 , which is a schematic diagram of a water channel structure 20 of an oral irrigator according to an embodiment of the present application, a portion of the water channel structure 20 of the oral irrigator is used to be installed in a housing 21 of the oral irrigator 10 .

[0087] The water path structure 20 of the oral irrigator includes a nozzle 100, a water tank 200, a functional liquid tank 300, a water liquid flow path 400 and a first pump body 500. Among them, the water tank 200, the functional liquid tank 300, the water liquid flow path 400 and the first pump body 500 and other structural parts are located in the shell 21 of the oral irrigator 10, and the nozzle 100 extends out of the shell 21 and is used to face the corresponding part of the user's mouth.

[0088] The nozzle 100 has a liquid outlet channel inside, one end of which forms a nozzle 110, and the other end of the liquid outlet channel is connected to the water flow path 400, and the water flow path 400 is also connected to the water tank 200. Specifically, the water flow path 400 is connected to a water storage chamber inside the water tank 200 for storing water, so that the water storage chamber is connected to the nozzle 110 through the water flow path 400.

[0089] The first pump body 500 is installed on the water flow path 400. The first pump body 500 is used to transport the water in the water storage chamber to the water flow path 400, and then to the liquid outlet flow path of the nozzle 100. The water in the liquid outlet flow path is sprayed out from the nozzle 110 and sprayed on the corresponding part of the user's mouth. Under the drive of the first pump body 500, the water sprayed from the nozzle 110 has a speed to impact the corresponding part of the user's mouth.

[0090] like Figure 2 As shown, the water path structure 20 of the water flosser also includes a functional liquid tank 300 and a functional liquid flow path 700. The functional liquid tank 300 has a functional liquid cavity for storing functional liquids. For example, the functional liquid includes at least one of the functional liquids that can improve the oral environment, such as a detergent, a freshener, a probiotic, a surfactant, and an antibacterial agent, wherein the detergent is used to clean the user's mouth, the freshener is used to freshen the user's breath, the probiotic is used to improve the growth state of the user's oral microorganisms, and the antibacterial agent is used to inhibit the growth of microorganisms that are not conducive to the freshness of the user's breath. Of course, the above is only an exemplary introduction to the types of functional liquids. The embodiments of the present application do not limit the types of functional liquids. Any functional liquid that can improve the user's oral environment and make the user's breath fresh is applicable to the present application.

[0091] The functional liquid chamber of the functional liquid tank 300 is connected with the water liquid flow path 400 through the functional liquid flow path 700, and the functional liquid can flow to the water liquid flow path 400 through the functional liquid flow path 700, and the functional liquid is mixed with the water liquid in the water liquid flow path 400. Among them, the first pump body 500 is also used to drive the functional liquid in the functional liquid chamber to enter the water liquid flow path 400 through the functional liquid flow path 700, so that the functional liquid is mixed with the water liquid to form a mixed liquid, and the mixed liquid is driven to be ejected from the nozzle 110. Under the drive of the first pump body 500, the water liquid and the functional liquid in the water liquid flow path 400 are subjected to a greater pressure, which accelerates the mixing of the water liquid and the functional liquid, so that the functional liquid and the water liquid can be mixed more evenly, so that the mixed liquid can be ejected more evenly from the nozzle 110, so as to achieve the effect of better improving the oral environment.

[0092] In the embodiment of the present application, there is no need to mix the water liquid and the functional liquid in advance, nor is there any need to manually add the functional liquid to the water liquid. By setting a first pump body 500, the functional liquid in the functional liquid tank 300 and the water liquid in the water tank 200 can be delivered and both can be sprayed out from the nozzle 110, which is convenient for operation. The functional liquid and the water liquid are respectively in their own independent cavities before entering the water liquid flow path 400, and do not contact each other, so as to prevent the functional liquid from being in contact with the water liquid for a long time, causing the components in the functional liquid to change and become ineffective.

[0093] The water flow path 400 includes at least one section of a pipeline. For example, the water flow path 400 only includes one section of a pipeline, and the pipeline is connected between the outlet of the water tank 200 and the liquid inlet of the first pump body 500, and the liquid outlet of the first pump body 500 is directly connected to the nozzle 100; or, the pipeline is connected between the nozzle 100 and the liquid outlet of the first pump body 500, and the liquid inlet of the first pump body 500 is directly connected to the outlet of the water tank 200.

[0094] Optionally, the water flow path 400 includes at least two sections of pipelines, the first pump body 500 is connected between two sections of the pipelines, and one section of the pipeline is connected to the outlet of the water tank 200, and the other section of the pipeline is connected to the nozzle 100, so that the water storage chamber of the water tank 200 is connected to the nozzle 110. Figure 2 and Figure 3a As shown, the water flow path 400 includes a first pipeline 410 and a second pipeline 420 . The first pipeline 410 connects the water storage chamber with the pump body liquid inlet 510 of the first pump body 500 , and the second pipeline 420 connects the pump body liquid outlet 520 of the first pump body 500 with the nozzle 110 .

[0095] The functional fluid flow path 700 is connected to at least one of the first pipeline 410 and the second pipeline 420 .

[0096] Combination Figure 3a and Figure 3b, the direction indicated by the arrow is the direction of the fluid in each flow path, the functional liquid flow path 700 is connected to the first pipeline 410, the functional liquid and the water liquid can be mixed in the first pipeline 410 to form a mixed liquid, and the mixed liquid passes through the first pump body 500, the second pipeline 420 and the nozzle 100 in sequence and then sprayed out from the nozzle 110, which can extend the process of mixing the functional liquid and the water liquid, so that the functional liquid and the water liquid are mixed more evenly. Among them, the functional liquid flow path 700 can be connected to the middle area of ​​the first pipeline 410 or the end of the first pipeline 410. Preferably, the functional liquid flow path 700 is connected to the end of the first pipeline 410, that is, the functional liquid flow path 700 is connected to the end of the first pipeline 410 corresponding to the water tank 200, or the functional liquid flow path 700 is connected to the end of the first pipeline 410 corresponding to the pump body liquid inlet 510, so as to save the number of pipelines of the water liquid flow path 400 and help improve assembly efficiency.

[0097] like Figure 3a As shown, the functional liquid flow circuit 700 is connected to the end of the first pipeline 410, and the oral irrigator 10 includes a first multi-channel tube 610. The functional liquid flow circuit 700 is connected to the first pipeline 410 at the first multi-channel tube 610. The first multi-channel tube 610 has a first interface 611 and a second interface 612. Optionally, the first interface 611 is connected to the first pipeline 410, and the second interface 612 is connected to the functional liquid flow circuit 700.

[0098] Furthermore, the first multichannel tube 610 also has a third interface 613, the third interface 613 is connected to the pump body liquid inlet 510 and fixed to the pump body liquid inlet 510, or the third interface 613 is connected to the outlet of the water tank 200 and fixed to the water tank 200, or a first butt joint (not shown in the figure) is connected between the third interface 613 and the pump body liquid inlet 510, and the third interface 613 is connected to the pump body liquid inlet 510 through the first butt joint. It should be noted that the docking position of the third interface 613 is selected based on shortening the length of the functional liquid flow path 700, for example, Figure 2 and 3a As shown, when the distance from the functional liquid tank 300 to the pump body liquid inlet 510 of the first pump body 500 is smaller than the distance from the functional liquid tank 300 to the outlet of the water tank 200 , the third interface 613 is selected to communicate with the pump body liquid inlet 510 .

[0099] like Figure 4As shown, the functional liquid flow path 700 is connected with the first pipeline 410, and the dental irrigator 10 further includes a first one-way valve 910, which is arranged at the pump body liquid inlet 510 and is located downstream of the connection position between the functional liquid flow path 700 and the first pipeline 410. For example, the first one-way valve 910 is arranged at the first butt joint pipe. The first one-way valve 910 allows the first pipeline 410 to be unidirectionally connected from the water storage chamber to the pump body liquid inlet 510. The first one-way valve 910 is opened when the first pump body 500 draws liquid and is closed when the first pump body 500 delivers liquid, so as to prevent the mixed liquid from flowing back into the functional liquid tank 300 or the water tank 200 to cause pollution when delivering liquid. In this way, the functional liquid and the water liquid can enter the first pump body 500 after preliminary mixing, and the synchronous control of the inlet functional liquid and the inlet water liquid can be achieved by setting a first one-way valve 910.

[0100] like Figure 5 As shown, the functional liquid flow path 700 is connected to the first pipeline 410, and the dental irrigator 10 further includes a second one-way valve 911 and a third one-way valve 912. The second one-way valve 911 allows the first pipeline 410 to be unidirectionally connected from the water storage chamber to the pump body liquid inlet 510. Specifically, the second one-way valve 911 is located upstream of the connection position between the functional liquid flow path 700 and the first pipeline 410, that is, the second one-way valve 911 is arranged on the first pipeline 410. The third one-way valve 912 is arranged on the functional liquid flow path 700, and the third one-way valve 912 allows the functional liquid flow path 700 to be unidirectionally connected from the functional liquid chamber to the pump body liquid inlet 510.

[0101] It should be noted that the second one-way valve 911 and the third one-way valve 912 are both opened when the first pump body 500 is pumping liquid and closed when the first pump body 500 is delivering liquid, so as to prevent the mixed liquid from flowing back into the functional liquid tank 300 or the water tank 200 and causing pollution when delivering liquid. When the first pump body 500 is pumping liquid, the opening and closing states of the second one-way valve 911 and the third one-way valve 912 can be selected based on the user's use needs. For example, when the user only needs the water liquid to act on the corresponding part of the oral cavity, the second one-way valve 911 is opened and the third one-way valve 912 is closed; or, when the user needs the water liquid and the functional liquid to act on the corresponding part of the oral cavity at the same time, the second one-way valve 911 and the third one-way valve 912 are both opened.

[0102] Combination Figure 6a and Figure 6b, the functional liquid flow path 700 is connected to the second pipeline 420, the functional liquid and the water are mixed in the second pipeline 420 to form a mixed liquid, and the mixed liquid is directly ejected from the nozzle 110 after passing through the second pipeline 420 and the nozzle 100, without passing through the first pump body 500. When there are substances corrosive to the first pump body 500 in the mixed liquid, damage to the first pump body 500 can be prevented. At this time, one of the interfaces of the first multi-channel tube 610 is connected to the first pipeline, and the other interface is connected to the pump body liquid outlet 520, and the first multi-channel tube 610 and the functional liquid flow path 700 are spaced apart.

[0103] The functional liquid flow path 700 may be connected to the middle area of ​​the second pipeline 420 or the end of the second pipeline 420. Preferably, the functional liquid flow path 700 is connected to the end of the second pipeline 420, that is, the functional liquid flow path 700 is connected to the end of the second pipeline 420 corresponding to the first pump body 500, or the functional liquid flow path 700 is connected to the end of the second pipeline 420 corresponding to the nozzle 100, so as to save the number of pipelines of the liquid flow path 400 and help improve assembly efficiency.

[0104] Combination Figure 6a and Figure 6b , the functional liquid flow path 700 is connected to the second pipeline 420, the oral irrigator 10 also includes a second multi-channel tube 620, the second multi-channel tube 620 includes a fourth interface 621, a fifth interface 622 and a sixth interface 623, the fourth interface 621 is connected to the second pipeline 420, the fifth interface 622 is connected to the functional liquid flow path 700, the sixth interface 623 is connected to the pump body outlet 520 and fixed to the pump body outlet 520, or the sixth interface 623 is connected to the liquid outlet channel of the nozzle 100 and fixed to the nozzle 100.

[0105] like Figure 7 As shown, the functional liquid flow path 700 is connected with the second pipeline 420, and the dental irrigator 10 further includes a fourth one-way valve 913, which is disposed at the pump body liquid outlet 520 and is located upstream of the connection position between the functional liquid flow path 700 and the second pipeline 420. The fourth one-way valve 913 allows the second pipeline 420 to be unidirectionally connected from the pump body liquid outlet 520 to the nozzle 110. The fourth one-way valve 913 is closed when the first pump body 500 draws liquid and is opened when the first pump body 500 delivers liquid, so that the water and functional liquid are unidirectionally delivered to the nozzle 100 to prevent the mixed liquid from flowing back into the first pump body 500.

[0106] When the functional liquid passes through the interface between the functional liquid flow path 700 and the second pipeline 420 , negative pressure is generated at the interface, thereby using the principle of the Venturi tube to suck the functional liquid in the functional liquid cavity toward the second pipeline 420 .

[0107] It is understandable that when the fluid flows through the small-diameter pipeline, the flow rate is relatively high. In the flow direction of the fluid, the fluid flowing through the small-diameter pipeline can suck the fluid upstream of the small-diameter pipeline, accelerate the fluid to flow quickly to the small-diameter pipeline, and push the fluid to the downstream of the small-diameter pipeline. Optionally, when the functional liquid flow path 700 is connected to the second pipeline 420, the diameter of the second pipeline 420 at the position connected to the functional liquid flow path 700 is smaller than the diameter of the pump body outlet 520. In this way, the water at the pump body outlet 520 and the functional liquid in the functional liquid flow path 700 can be sucked more quickly, accelerating the mixing of the water and the functional liquid. In addition, the pressure on the fluid at the small-diameter pipeline is also large, and the water and the functional liquid can also be mixed more evenly at the small-diameter pipeline.

[0108] like Figure 7 As shown, the second pipeline 420 includes a nozzle pipeline 421 and a pump pipeline 422, one end of the nozzle pipeline 421 is installed on the nozzle 100, the channel inside the nozzle pipeline 421 is connected to the liquid outlet channel of the nozzle 100, so that the nozzle pipeline 421 is connected to the nozzle 110, the channel inside the nozzle pipeline 421 is connected to the channel inside the pump pipeline 422, and the pump pipeline 422 connects the nozzle pipeline 421 with the pump body liquid outlet 520. During assembly, the pump body pipeline 422 can be installed in the internal space of the installation shell of the first pump body 500 to fix the position of the pump body pipeline 422 relative to the pump body liquid outlet 520.

[0109] Optionally, the functional liquid flow path 700 is directly connected to the pump body pipeline 422, and the connection position of the functional liquid flow path 700 and the pump body pipeline 422 is located upstream of the nozzle pipeline 421. The portion where the pump body pipeline 422 and the functional liquid flow path 700 are connected forms a first connecting pipeline segment 4221, and the portion where the pump body pipeline 422 and the pump body liquid outlet 520 are connected forms a second connecting pipeline segment 4222. The diameter of the second connecting pipeline segment 4222 is larger than the diameter of the first connecting pipeline segment 4221. Figure 7 As shown, the first docking pipeline section 4221 can be formed by the middle part of the pump body pipeline 422, and the first docking pipeline section 4221 has a docking opening 422a docking with the functional liquid flow path 700, or the first docking pipeline section 4221 can also be formed by the part of the pump body pipeline 422 docking with the nozzle pipeline 421. The fourth one-way valve 913 is provided in the second docking pipeline section 4222.

[0110] Optionally, the functional liquid flow path 700 is connected to the pump body pipeline 422 through the second multi-channel tube 620. Specifically, the functional liquid flow path 700, the pump body pipeline 422 and the nozzle pipeline 421 are each connected to one of the interfaces of the second multi-channel tube 620. At this time, the diameter of the intersection of multiple interfaces of the second multi-channel tube 620 can be set to be smaller than the diameter of the open end of each interface to facilitate the suction of functional liquid and water, wherein the fourth one-way valve 913 is installed on the pump body pipeline 422, and the pump body pipeline 422 and the functional liquid flow path 700 are spaced apart.

[0111] like Figure 8a As shown, the oral irrigator 10 also includes an isolation member 320 and a branch channel 800. The isolation member 320 is arranged in the functional liquid chamber. The isolation member 320 separates the functional liquid chamber into a first cavity 311 and a second cavity 312 that are isolated from each other. The first cavity 311 is used to store functional liquid. The functional liquid flow path 700 is connected to the first cavity 311. The branch channel 800 connects the water flow path 400 with the second cavity 312. wherein at least a portion of the isolation member 320 is movable relative to the functional liquid tank 300. When the first pump body 500 is in operation, a portion of the water or mixed liquid flowing out of the pump body liquid outlet 520 flows into the second cavity 312 through the branch channel 800 and squeezes the isolation member 320, so that at least a portion of the isolation member 320 moves toward the first cavity 311, so as to squeeze the functional liquid in the first cavity 311 into the functional liquid flow path 700. In this way, through a first pump body 500, it is possible to realize the function of pumping the functional liquid and the water liquid to the nozzle 110, and to realize the function of squeezing the functional liquid out of the functional liquid cavity. The structure is simple and no other structural parts are required to drive the functional liquid and the water liquid to flow.

[0112] Combination Figure 8a and Figure 8b The functional liquid flow path 700 is connected to the first pipeline 410, and the branch channel 800 connects the second pipeline 420 with the second cavity 312. In this way, when the first pump body 500 is running, a part of the fluid flowing into the second pipeline 420 from the pump body outlet 520 enters the nozzle 100 and is ejected from the nozzle 110, and the other part of the fluid flows into the second cavity 312 through the branch channel 800 and squeezes the isolation member 320, so that at least a part of the isolation member 320 moves toward the first cavity 311.

[0113] Optionally, the branch channel 800 connects the second pipeline 420 with the second cavity 312, and a first throttle valve is provided on the second pipeline 420, and the first throttle valve is located downstream of the connection position between the branch channel 800 and the second pipeline 420, so as to control the flow rate of the mixed liquid in the second pipeline 420 when the pump body is running. Further, when the second pipeline 420 includes a nozzle pipeline 421 and a pump body pipeline 422, the branch channel 800 can be arranged to be connected to the nozzle pipeline 421, or the branch channel 800 can be arranged to be connected to the pump body pipeline 422.

[0114] Combination Figure 9a and Figure 9b , the functional liquid flow path 700 is connected to the second pipeline 420, and the branch flow channel 800 connects the second pipeline 420 with the second cavity 312. Further, the connection position of the branch flow channel 800 and the second pipeline 420 is located upstream of the connection position of the functional liquid flow path 700 and the second pipeline 420, so that the water enters the second cavity 312. At this time, both the branch flow channel 800 and the functional liquid flow path 700 can be arranged to be connected to the pump body pipeline 422; or, the functional liquid flow path 700 can be arranged to be connected to the second multi-channel tube 620, and the branch flow channel 800 can be arranged to be connected to the pump body pipeline 422.

[0115] Optionally, a second throttle valve is provided on the second pipeline 420, and the front end of the second throttle valve is located downstream of the connection position between the branch flow channel 800 and the second pipeline 420, and the rear end of the second throttle valve is located upstream of the connection position between the functional liquid flow path 700 and the second pipeline 420, so as to regulate the flow rate of the water liquid entering the nozzle 100 and the flow rate of the water liquid entering the second cavity 312 through the second throttle valve.

[0116] In some other embodiments, the functional liquid flow path 700 may be connected to the first pipeline 410, and the branch flow channel 800 may connect the first pipeline 410 to the second cavity 312. For example, the branch flow channel 800 is connected upstream of the interface between the functional liquid flow path 700 and the first pipeline 410. In this case, the branch flow channel 800 transports the water into the second cavity 312 to extrude the isolation element 320; or, the branch flow channel 800 is connected downstream of the interface between the functional liquid flow path 700 and the first pipeline 410. In this case, the branch flow channel 800 transports the mixed liquid into the second cavity 312 to extrude the isolation element 320.

[0117] The isolation member 320 is a damping piston, the circumference of which contacts the wall of the functional fluid chamber, and the damping piston can slide relative to the functional fluid tank 300, so that the damping piston can move under the push of the fluid in the second chamber 312, thereby changing the relative capacity of the first chamber 311 and the second chamber 312. The damping piston can move from the first chamber 311 toward the second chamber 312, and can also move from the second chamber 312 toward the first chamber 311.

[0118] The isolating member 320 is an elastic water-isolating membrane, the peripheral side of which is fixedly connected to the cavity wall of the functional liquid cavity, and the middle part of the elastic water-isolating membrane can be deformed under the pressure of the fluid to change the relative capacity of the first cavity 311 and the second cavity 312 .

[0119] The volume of the functional liquid tank 300 is smaller than that of the water tank 200, and the capacity of the functional liquid chamber is smaller than that of the water storage chamber, so that the water tank 200 can store more water to mix with the functional liquid to meet more usage needs. For example, the water can be used to dilute the functional liquid, or, in a mode where only water is needed, there is enough water to use.

[0120] A third throttle valve (not shown) is provided on the functional liquid flow path 700, and the flow rate of the functional liquid is adjusted by the third throttle valve so that the functional liquid and the water liquid are mixed in a suitable ratio.

[0121] The water channel structure also includes a third multi-channel tube 630, and the third multi-channel tube 630 has an infusion channel inside, and the infusion channel connects the first cavity 311 and the functional liquid flow path 700. Optionally, the third multi-channel tube 630 also has a reflux channel spaced apart from the infusion channel, and the reflux channel connects the branch flow channel 800 and the second cavity 312. Specifically, the third multi-channel tube 630 has a main interface 631, a first sub-interface 632 and a second sub-interface 633, the infusion channel is formed inside the first sub-interface 632 and the main interface 631, the reflux channel is formed inside the second sub-interface 633 and the main interface 631, and the main interface 631 is installed with the functional liquid tank 300, so that it is easy to simplify the pipeline structure in which the functional liquid tank 300 is connected to the functional liquid flow path 700 and the branch flow channel 800 respectively.

[0122] In some other embodiments, the functional liquid tank 300 may be provided with an air hole 330, which connects the functional liquid cavity with the atmosphere. Specifically, the air hole 330 is connected with the second cavity 312. In this case, the second cavity 312 is not connected with the water flow path 400. When the functional liquid in the first cavity 311 is drawn away, air is promptly added to the second cavity 312 through the air hole 330, so that the capacity of the first cavity 311 is reduced and the capacity of the second cavity 312 is increased. Optionally, a first waterproof and breathable membrane 917 is provided at the air hole 330, and the first waterproof and breathable membrane 917 can prevent impurities from entering the second cavity 312.

[0123] In some other embodiments, such as Figure 3b and Figure 6b As shown, the water channel structure 10 may also include an air inlet channel 340 connected to the functional liquid chamber 310 inside the functional liquid tank 300, and the gas outside the functional liquid tank 300 can enter the functional liquid tank 300 through the air inlet channel 340, so that the functional liquid can flow out of the functional liquid tank 300 smoothly.

[0124] The embodiment of the present application also provides a water flosser 10, which includes a shell and the water path structure as described above, wherein part of the water path structure is located inside the shell, for example, the water tank 200, the functional liquid tank 300, the water liquid flow path 400, the functional liquid flow path 700 and the first pump body 500 are located inside the shell.

[0125] When the functional liquid tank 300 has a vent hole 330, the dental flosser 10 further includes an inlet flow channel, which is located in the shell, and a vent is provided on the outer surface of the shell, and the inlet flow channel is connected with the vent to connect the functional liquid cavity with the atmosphere. The inlet flow channel can be directly connected with the vent hole 330 of the functional liquid cavity, or the inlet flow channel can be spaced apart from the vent hole 330, and external air can be added to the internal space of the shell through the vent and the inlet flow channel to timely adjust the pressure of the internal space of the shell, or timely adjust the pressure in the second cavity 312.

[0126] Optionally, a second waterproof and breathable membrane is provided at the vent to prevent external impurities from entering the internal space of the shell.

[0127] When the functional liquid chamber of the functional liquid tank 300 is connected to the water liquid flow path 400 through the branch flow channel 800, the vent may not be provided on the outer side of the shell, so that the interior of the shell is a closed environment.

[0128] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A water channel structure of a water flosser, characterized in that: include: A nozzle having a spout; A water tank having a water storage chamber for storing water; A functional liquid tank having a functional liquid cavity for storing functional liquid; A water flow path, through which the water storage chamber is connected to the nozzle; A functional liquid flow path, wherein the functional liquid cavity is connected to the water liquid flow path through the functional liquid flow path; The first pump body is installed in the water flow path. The first pump body is used to transport the water in the water storage chamber to the water flow path. The first pump body is also used to transport the functional liquid in the functional liquid chamber to the water flow path through the functional liquid flow path, so that the functional liquid and the water are mixed to form a mixed liquid, and the mixed liquid is sprayed out through the nozzle.

2. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water flow path comprises: a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body; a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle; Wherein, the functional liquid flow path is communicated with the first pipeline, and / or the functional liquid flow path is communicated with the second pipeline.

3. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water liquid flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle; Wherein, the oral irrigator further comprises a first multi-channel tube, the first multi-channel tube comprising a first interface connected to the first pipeline, a second interface connected to the functional liquid flow path, and a third interface connected to and fixed to the pump body liquid inlet; and / or, The functional liquid flow path is connected to the second pipeline, and the oral irrigator also includes a second multi-channel tube, which includes a fourth interface connected to the second pipeline, a fifth interface connected to the functional liquid flow path, and a sixth interface connected to and fixed to the liquid outlet of the pump body.

4. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the water flosser also includes: A first one-way valve is arranged at the liquid inlet of the pump body and is located downstream of the connection position between the functional liquid flow path and the first pipeline. The first one-way valve allows the first pipeline to be unidirectionally connected from the water storage chamber to the liquid inlet of the pump body.

5. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the functional liquid flow path connects with the first pipeline, and the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the water flosser also includes: a second one-way valve, the second one-way valve being disposed on the first pipeline, the second one-way valve allowing the first pipeline to be unidirectionally connected from the water storage chamber to the liquid inlet of the pump body; A third one-way valve is provided on the functional liquid flow path, and the third one-way valve enables the functional liquid flow path to be unidirectionally conducted from the functional liquid cavity to the liquid inlet of the pump body.

6. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, the functional liquid flow path is connected with the second pipeline, and the water flosser also includes: A fourth one-way valve is arranged at the liquid outlet of the pump body and is located upstream of the connection position between the functional liquid flow path and the second pipeline. The fourth one-way valve allows the second pipeline to be unidirectionally connected from the liquid outlet of the pump body to the nozzle.

7. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water liquid flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, and the functional liquid flow path connects with the second pipeline; Wherein, the diameter of the second pipeline at the position connected with the functional liquid flow path is smaller than the diameter of the liquid outlet of the pump body.

8. The water channel structure of the oral irrigator according to claim 1, characterized in that: The water flow path includes a first pipeline and a second pipeline, the first pipeline connects the water storage chamber with the pump body liquid inlet of the first pump body, the second pipeline connects the pump body liquid outlet of the first pump body with the nozzle, the functional liquid flow path is connected with the second pipeline, and the second pipeline includes: a nozzle pipe, connected to the nozzle; A pump body pipeline, connecting the nozzle pipeline with the pump body liquid outlet of the first pump body; Wherein, the functional liquid flow path is communicated with the pump body pipeline, and the communication position between the functional liquid flow path and the pump body pipeline is located upstream of the nozzle pipeline.

9. The water channel structure of the oral irrigator according to claim 1, characterized in that: The dental flosser also includes: an isolating member, disposed in the functional liquid chamber, the isolating member divides the functional liquid chamber into a first cavity and a second cavity isolated from each other, the first cavity is used to store the functional liquid, and the functional liquid flow path is connected to the first cavity; a branch flow channel, the branch flow channel connecting the water flow channel with the second cavity; In which, at least part of the isolation element is movable relative to the functional liquid tank. When the first pump body is in operation, part of the water liquid or mixed liquid flowing out from the pump body outlet of the first pump body flows into the second cavity through the branch flow channel, so that at least part of the isolation element moves toward the first cavity to squeeze the functional liquid in the first cavity into the functional liquid flow path.

10. The water channel structure of the oral irrigator according to claim 9, characterized in that: The water flow path comprises: a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body; a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle; Wherein, the functional liquid flow path is connected to the first pipeline, and the branch flow channel connects the second pipeline with the second cavity.

11. The water channel structure of the oral irrigator according to claim 10, characterized in that: The second pipeline is provided with a first throttle valve, and the first throttle valve is located downstream of the communication position between the branch flow channel and the second pipeline.

12. The water channel structure of the oral irrigator according to claim 9, characterized in that: The water flow path comprises: a first pipeline, the first pipeline connecting the water storage chamber with a pump body liquid inlet of the first pump body; a second pipeline, the second pipeline connecting the pump body liquid outlet of the first pump body with the nozzle; The functional liquid flow path is connected to the second pipeline, the branch channel connects the second pipeline to the second cavity, and the connection position of the branch channel and the second pipeline is located upstream of the connection position of the functional liquid flow path and the second pipeline.

13. The water channel structure of the oral irrigator according to claim 12, characterized in that: A second throttle valve is arranged on the second pipeline, the front end of the second throttle valve is located downstream of the connection position between the branch flow channel and the second pipeline, and the rear end of the second throttle valve is located upstream of the connection position between the functional fluid flow path and the second pipeline.

14. The water channel structure of the oral irrigator according to claim 9, characterized in that: The isolating member is a damping piston, the peripheral side of the damping piston is in contact with the cavity wall of the functional fluid cavity, and the damping piston can slide relative to the functional fluid tank; or, The isolating member is an elastic water-isolating membrane, and the peripheral side of the elastic water-isolating membrane is fixedly connected to the cavity wall of the functional liquid cavity.

15. The water channel structure of the oral irrigator according to claim 1, characterized in that: The volume of the functional liquid tank is smaller than that of the water tank, and the capacity of the functional liquid cavity is smaller than that of the water storage cavity.

16. The water channel structure of the oral irrigator according to claim 1, characterized in that: A third throttle valve is arranged on the functional liquid flow path.

17. The water channel structure of the oral irrigator according to claim 1, characterized in that: The functional liquid box is provided with an air vent, and the air vent connects the functional liquid cavity with the atmosphere.

18. The water channel structure of the oral irrigator according to claim 17, characterized in that: The air holes are provided with a first waterproof and breathable membrane.

19. A dental flosser, characterized in that: The invention comprises a shell and a water channel structure according to any one of claims 1 to 18, wherein the water channel structure is located in the shell.

20. The oral rinser according to claim 19, characterized in that: The dental flosser also includes: The inlet flow channel is located in the shell, and a vent is provided on the outer surface of the shell. The inlet flow channel is connected with the vent to connect the functional liquid chamber with the atmosphere.

21. The oral rinser according to claim 20, characterized in that: A second waterproof and breathable membrane is arranged at the vent.

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