Water pick

Abstract

The utility model discloses an oral irrigator, which comprises a body provided with a first magnetic part; the water tank is connected with the machine body, the water tank defines a water storage space or defines a water storage space together with the machine body, the water tank is provided with a second magnetic attraction part, and the first magnetic attraction part and the second magnetic attraction part are matched in a magnetic attraction mode; wherein the sum of the gravity of the water tank and the gravity of the liquid with the maximum capacity in the water storage space is smaller than the magnetic attraction force, and the water tank and the machine body are not separated under the action of the gravity through the magnetic attraction force. According to the oral irrigator, positioning connection between the irrigator body and the water tank is achieved through the magnetic attraction piece, manual positioning is not needed, and assembling is convenient.

Description

Technical Field

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

[0002] The portable water flosser in the related art usually has a water tank and a body, which are detachably connected. There are usually two different ways to connect the water tank and the body. The first way is that the volume of the water tank is fixed and the water tank and the body are connected by a buckle; the second way is that the water tank and the body are slidably connected to change the volume of the water storage chamber. However, in the above two ways, the user needs to manually align the water tank and the body during the connection process, which is inconvenient to assemble. Utility Model Content

[0003] The purpose of the present application is to provide a water flosser, which realizes the positioning connection between the body and the water tank through a magnetic suction piece, does not require manual positioning, and is easy to assemble.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a water flosser, including: a body, provided with a first magnetic component; a water tank, connected to the body, the water tank defines a water storage space or defines a water storage space together with the body, the water tank is provided with a second magnetic component, and the first magnetic component and the second magnetic component are magnetically matched; wherein the sum of the gravity of the water tank and the gravity of the liquid with the maximum capacity of the water storage space is less than the magnetic attraction force, and the magnetic attraction force is used to prevent the water tank and the body from being separated under the action of gravity.

[0005] In some embodiments of the present application, one side of the fuselage facing the water tank is constructed as a plane and is provided with the first magnetic component, one side of the water tank facing the fuselage is constructed as a plane and is provided with the second magnetic component, and one side of the fuselage facing the water tank is fitted with one side of the water tank facing the fuselage; or one side of the fuselage facing the water tank is constructed as a curved surface and is provided with the first magnetic component, one side of the water tank facing the fuselage is constructed as a curved surface and is provided with the second magnetic component, and one side of the fuselage facing the water tank is fitted with one side of the water tank facing the fuselage.

[0006] In some embodiments of the present application, there is a smooth transition between the outer surface of the water tank and the outer surface of the fuselage.

[0007] In some embodiments of the present application, one of the body and the water tank is provided with a protruding portion and the other is provided with a recessed portion, and the protruding portion is inserted into the recessed portion.

[0008] In some embodiments of the present application, the cross-sectional area of ​​the protrusion gradually decreases toward the direction approaching the recessed portion.

[0009] In some embodiments of the present application, there are multiple protrusions, including a first protrusion and a second protrusion; there are multiple recessed portions, including a first recessed portion and a second recessed portion; the first protrusion is inserted into the first recessed portion, and the second protrusion is inserted into the second recessed portion; wherein, the first protrusion cooperates with the first recessed portion earlier than the second protrusion cooperates with the second recessed portion.

[0010] In some embodiments of the present application, there are multiple raised portions and multiple recessed portions, and the multiple raised portions correspond to the multiple recessed portions one by one; when the water tank is connected to the side of the body, the multiple raised portions are arranged at intervals along the length direction of the water flosser, and the distance between the uppermost raised portion and the top of the water tank is smaller than the distance between the raised portion and the middle of the water tank, and the distance between the lowermost raised portion and the bottom of the water tank is smaller than the distance between the raised portion and the middle of the water tank.

[0011] In some embodiments of the present application, the fuselage is provided with the protrusion, the water tank is provided with the recessed portion, the first magnetic component is provided on the protrusion, and the second magnetic component is provided on the recessed portion; or the fuselage is provided with the recessed portion, the water tank is provided with the protrusion, the first magnetic component is provided on the recessed portion, and the second magnetic component is provided on the protrusion.

[0012] In some embodiments of the present application, the fuselage is connected to a first cover body, the first magnetic component is arranged between the first cover body and the fuselage, and the first cover body protrudes relative to the outer surface of the fuselage; and / or the water tank is connected to a second cover body, the second magnetic component is arranged between the second cover body and the water tank, and the second cover body protrudes relative to the outer surface of the water tank.

[0013] In some embodiments of the present application, when the body is connected to a first cover body, a first mounting groove is provided on the outer surface of the body, a portion of the first magnetic component is provided in the first mounting groove, and another portion of the first magnetic component is located outside the first mounting groove and is blocked by the first cover body; when the water tank is connected to a second cover body, a second mounting groove is provided on the outer surface of the water tank, a portion of the second magnetic component is provided in the second mounting groove, and another portion of the second magnetic component is located outside the second mounting groove and is blocked by the second cover body.

[0014] In some embodiments of the present application, the water tank is movable between a first position and a second position relative to the body; when the water tank is in the first position, the water storage space has a first volume, and there is a first distance between the first magnetic component and the second magnetic component; when the water tank is in the second position, the water storage space has a second volume, and there is a second distance between the first magnetic component and the second magnetic component; the first volume is greater than the second volume, and the first distance is smaller than the second distance.

[0015] In some embodiments of the present application, when the water tank is in the second position, there is a smooth transition between the outer surface of the water tank and the outer surface of the fuselage.

[0016] In some embodiments of the present application, the distance between the first magnetic attraction component and the second magnetic attraction component is no more than 3 mm.

[0017] In some embodiments of the present application, there is a preset relative position between the fuselage and the water tank, there are multiple first magnetic components, and the multiple first magnetic components are arranged at intervals, there are multiple second magnetic components, and the multiple second magnetic components are arranged at intervals and are magnetically attracted to the multiple first magnetic components one by one, and the force between the multiple first magnetic components and the multiple second magnetic components has a tendency to keep the fuselage and the water tank in the preset relative position.

[0018] In some embodiments of the present application, the body includes a motor, and the arrangement of the motor is at least one of the following: at least a portion of the first magnetic component is staggered with the motor in the length direction of the water flosser; at least a portion of the second magnetic component is staggered with the motor in the length direction of the water flosser; on a plane perpendicular to the axial direction of the water flosser, at least a portion of the orthographic projection of the first magnetic component is staggered with the orthographic projection of the motor; on a plane perpendicular to the axial direction of the water flosser, at least a portion of the orthographic projection of the second magnetic component is staggered with the orthographic projection of the motor.

[0019] In some embodiments of the present application, the body includes a motor, and when the water tank is connected to the end of the body, the first magnetic component is arranged at the end of the body facing the water tank, and in the length direction of the water flosser, the motor is spaced apart from the end of the body facing the water tank; or the body includes a motor, and when the water tank is connected to the side of the body, the first magnetic component is arranged on the side of the body facing the water tank, and in the radial direction of the water flosser, the motor is spaced apart from the side of the body facing the water tank.

[0020] In some embodiments of the present application, the structure of the water flosser is at least one of the following: the first magnetic component is arranged inside the body; the body includes a casing, and the first magnetic component is arranged inside the shell wall of the casing; the water tank is provided with a water tank shell, and the second magnetic component is arranged inside the shell wall of the water tank shell.

[0021] In some embodiments of the present application, when the water tank is connected to the side of the fuselage, at least one of an operation module and a display module is provided on a side of the fuselage facing away from the water tank.

[0022] In some embodiments of the present application, the water tank is provided with a connecting structure, and the connecting structure is connected to the fuselage; and / or the fuselage is provided with a connecting structure, and the connecting structure is connected to the water tank.

[0023] In some embodiments of the present application, a buffer pad is provided between the fuselage and the water tank to fill the gap between the fuselage and the water tank.

[0024] In some embodiments of the present application, when the water tank is connected to an end of the fuselage, a portion of the water tank is located on a side of the fuselage in a radial direction of the fuselage.

[0025] In some embodiments of the present application, when the water tank is connected to the side of the fuselage, the bottom end of the water tank is flush with the bottom end of the fuselage, and / or the top end of the water tank is flush with the top end of the fuselage.

[0026] In some embodiments of the present application, the fuselage and the water tank are detachably connected, the fuselage is provided with a first interface, the water tank is provided with a second interface, the first interface is connected to a pump body in the fuselage, and the second interface is provided with a valve; when the water tank is connected to the fuselage, the valve is opened, and the first interface is connected to the second interface; when the water tank is separated from the fuselage, the valve is closed, and the connection between the first interface and the second interface is disconnected.

[0027] In some embodiments of the present application, a supporting member is provided at the first interface, and when the water tank is connected to the body, the supporting member stops at the valve to open the valve.

[0028] In some embodiments of the present application, when the water tank is connected to the side of the fuselage, the first interface is arranged at the bottom end of the fuselage, and the second interface is arranged at the bottom end of the water tank.

[0029] In some embodiments of the present application, the water flosser further includes: a sealing member, wherein a first sealing protrusion is provided on the outer circumferential surface of the sealing member, and a second sealing protrusion is provided on the end of the sealing member; wherein the first sealing protrusion contacts the inner circumferential surface of the first interface, and the second sealing protrusion abuts against a side of the water tank facing the body; or the first sealing protrusion contacts the inner circumferential surface of the second interface, and the second sealing protrusion abuts against a side of the body facing the water tank.

[0030] In some embodiments of the present application, the gravity of the fuselage is G1, the sum of the gravity of the water tank and the gravity of the liquid with the maximum capacity of the water storage space is G2, and the ratio of G1 to G2 is not less than 0.5 and not greater than 2.

[0031] In some embodiments of the present application, the water tank is connected to an end of the fuselage or to a side of the fuselage.

[0032] The water flosser of the embodiment of the present application, by providing the first magnetic component and the second magnetic component, during the process of assembling the water flosser, the magnetic force can guide the water tank and the body, and the water tank and the body can be automatically positioned and connected without the need for manual alignment by the user, thereby making installation more convenient. In addition, the magnetic force between the first magnetic component and the second magnetic component can prevent the water tank and the body from separating, thereby playing a role in connecting and fixing them. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is one of the structural schematic diagrams of the oral irrigator according to an embodiment of the present application;

[0035] Figure 2 A cross-sectional view of the oral irrigator according to an embodiment of the present application;

[0036] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0037] Figure 4 A schematic diagram of the structure of a water tank of a water flosser according to an embodiment of the present application;

[0038] Figure 5 A cross-sectional view of a water tank of a water flosser according to an embodiment of the present application;

[0039] Figure 6A schematic diagram of the cooperation between the water tank and the second magnetic attraction member of the oral irrigator according to an embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of the body of the oral irrigator according to an embodiment of the present application;

[0041] Figure 8 for Figure 2 A partial enlarged schematic diagram of the middle B area;

[0042] Fig. 9 This is the second structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0043] Fig.10 This is the third structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0044] Fig.11 This is the fourth structural schematic diagram of the oral irrigator according to the embodiment of the present application.

[0045] Description of Figure Numbers:

[0046] Water flosser 1;

[0047] Body 100; first magnetic member 101; recessed portion 102; first interface 105; abutting member 106; motor 107; pump body 110; control circuit board 120;

[0048] Water tank 200; second magnetic member 201; protrusion 202; second cover 203; second mounting groove 204; second interface 205; valve 207; water storage space 208; sealing member 210; first sealing protrusion 211; second sealing protrusion 212;

[0049] Nozzle 300 ; operating module 500 .

[0050] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0052] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0053] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0055] The oral irrigator 1 according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0056] like Figure 1-Figure 3 As shown, the oral irrigator 1 of the embodiment of the present application includes a body 100 and a water tank 200 .

[0057] The body 100 is provided with a first magnetic component 101, and the water tank 200 is connected to the body 100, for example, the water tank 200 is connected to the end of the body 100 or to the side of the body 100, the water tank 200 defines a water storage space 208, or the water tank 200 and the body 100 jointly define a water storage space 208, and the water storage space 208 is used to store liquid for cleaning the oral cavity, such as clean water or mouthwash, etc. The water tank 200 is provided with a second magnetic component 201, and the first magnetic component 101 and the second magnetic component 201 are magnetically matched.

[0058] For example, the first magnetic component 101 can be a permanent magnet, such as a magnet. In this case, the second magnetic component 201 can also be a permanent magnet, such as a magnet, and the first magnetic component 101 and the second magnetic component 201 have opposite polarities. Of course, the second magnetic component 201 can also be a metal that can be magnetically attracted (such as iron) or other materials that can be magnetically attracted; the second magnetic component 201 can be a permanent magnet, such as a magnet. In this case, the first magnetic component 101 can also be a permanent magnet, such as a magnet, and the first magnetic component 101 and the second magnetic component 201 have opposite polarities. Of course, the first magnetic component 101 can also be a metal that can be magnetically attracted (such as iron) or other materials that can be magnetically attracted.

[0059] By setting the first magnetic component 101 and the second magnetic component 201, during the assembly of the water flosser 1, the magnetic force can guide the water tank 200 and the body 100, and the water tank 200 and the body 100 can be automatically positioned and connected without the need for manual alignment by the user, making the installation more convenient. In addition, the magnetic force between the first magnetic component 101 and the second magnetic component 201 can prevent the water tank 200 and the body 100 from separating, thereby playing a role in connecting and fixing.

[0060] The sum of the gravity of the water tank 200 and the gravity of the liquid in the maximum capacity of the water storage space 208 is always smaller than the magnetic attraction, so that the water tank 200 remains connected to the body 100, that is, the water tank 200 and the body 100 will not separate under the action of gravity. The gravity of the water tank 200 refers to the gravity of the water tank 200 itself when there is no liquid in the water storage space 208, and the gravity of the liquid in the maximum capacity of the water storage space 208 refers to the total gravity of the liquid in the water storage space 208 when the water storage space 208 is full of liquid.

[0061] After the first magnetic member 101 and the second magnetic member 201 are aligned, it can ensure that the water tank 200 can be stably connected to the body 100 regardless of whether the water storage space 208 is full of water, thereby avoiding separation of the water tank 200 and the body 100, and ensuring reliable use.

[0062] Specifically, the gravity of the body 100 is G1, the sum of the gravity of the water tank 200 and the gravity of the liquid with the maximum capacity of the water storage space 208 is G2, and the ratio of G1 to G2 is not less than 0.5 and not greater than 2. The ratio of G1 to G2 can be 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9 or 2.

[0063] The gravity of the water tank 200 and the gravity of the body 100 usually do not change or change very little. Therefore, when the ratio of G1 to G2 is less than 0.5, the amount of liquid that can be stored in the water storage space 208 is small. After each time the water storage space 208 is filled with water, the use time of the water flosser 1 is short and it needs to be repeatedly filled with water, which affects the user experience; when the ratio of G1 to G2 is greater than 2, G2 is larger, and the amount of liquid that can be stored in the water storage space 208 is larger. Therefore, a larger magnetic attraction force needs to be generated between the first magnetic component 101 and the second magnetic component 201 to ensure a stable connection between the water tank 200 and the body 100, which will cause the first magnetic component 101 and the second magnetic component 201 to increase in volume, reduce the distance or replace the material, affecting the layout of the water flosser 1 and increasing the cost.

[0064] When the ratio of G1 to G2 is not less than 0.5 and not greater than 2, the amount of liquid that can be stored in the water storage space 208 is relatively sufficient to better meet the user's oral cleaning needs each time, and the amount of liquid that can be stored in the water storage space 208 will not be too much, avoiding excessive gravity of the liquid in the water storage space 208. Therefore, the volume of the first magnetic component 101 and the second magnetic component 201 can be smaller, the distance can be adjusted in a large range, and the manufacturing material selection range is large, which is convenient for the layout of the water flosser 1 and can reduce costs.

[0065] When the water tank 200 is connected to the side of the body 100, the water tank 200 is connected to the body 100 at least by magnetic attraction, that is, the water tank 200 and the body 100 can be connected only by magnetic attraction, or the water tank 200 and the body 100 are not only connected by magnetic attraction, but there are other forces between the water tank 200 and the body 100 to maintain the relative position. Due to the existence of magnetic attraction, even if there are other forces, other forces can be reduced to a certain extent. The implementation methods of other forces are more flexible, and the structural methods of the water flosser 1 are more diverse, which is conducive to improving the applicability of the water flosser 1 and reducing costs.

[0066] In some embodiments of the present application, Figure 2 , Figure 4 and Figure 7 As shown, the side of the fuselage 100 facing the water tank 200 is constructed as a plane and is provided with a first magnetic component 101, the side of the water tank 200 facing the fuselage 100 is constructed as a plane and is provided with a second magnetic component 201, and the side of the fuselage 100 facing the water tank 200 is in contact with the side of the water tank 200 facing the fuselage 100.

[0067] In other embodiments of the present application, one side of the fuselage 100 facing the water tank 200 is constructed as a curved surface and is provided with a first magnetic component 101, one side of the water tank 200 facing the fuselage 100 is constructed as a curved surface and is provided with a second magnetic component 201, and one side of the fuselage 100 facing the water tank 200 is in contact with one side of the water tank 200 facing the fuselage 100.

[0068] In this way, on the one hand, the distance between the first magnetic component 101 and the second magnetic component 201 is closer, which is conducive to increasing the magnetic attraction between the first magnetic component 101 and the second magnetic component 201, and improving the connection strength between the water tank 200 and the body 100, and the relative position between the water tank 200 and the body 100 is more reliable and not easy to separate; on the other hand, the shape of the side of the body 100 facing the water tank 200 and the side of the water tank 200 facing the body 100 are adapted, and the body 100 and the water tank 200 are more fitted to each other, which is conducive to reducing the gap between the body 100 and the water tank 200, reducing the volume of the water flosser 1, and reducing the probability of liquid leakage.

[0069] like Fig. 9and Fig.11 As shown, one of the body 100 and the water tank 200 may be provided with a protrusion 202, and the other may be provided with a recessed portion 102, and the protrusion 202 and the recessed portion 102 are plugged into each other, so that the construction methods of the body 100 and the water tank 200 are more diverse, thereby increasing the construction flexibility of the oral irrigator 1.

[0070] Since the fuselage 100 and the water tank 200 cooperate with each other through the protrusion 202 and the recessed portion 102, it is easy to achieve positioning between the fuselage 100 and the water tank 200, shortening the installation time between the fuselage 100 and the water tank 200, improving production efficiency, and facilitating assembly and providing a better user experience during use.

[0071] Specifically, when the side of the body 100 is connected to the water tank 200, the raised portion 202 and the recessed portion 102 can play a supporting role to prevent the body 100 and the water tank 200 from being misplaced in the length direction of the oral irrigator 1; when the end of the body 100 is connected to the water tank 200, the raised portion 202 and the recessed portion 102 can play a limiting role to prevent the body 100 and the water tank 200 from being misplaced in the radial direction of the oral irrigator 1.

[0072] like Figure 1 As shown, the outer surface of the water tank 200 and the outer surface of the body 100 are smoothly transitioned. In this way, no step structure is formed between the water tank 200 and the body 100, which optimizes the grip of the water flosser 1, makes the water flosser 1 fit the palm more closely, and avoids the palm being suspended in the air. On the other hand, the connection between the water tank 200 and the body 100 is easy to clean, and is not easy to hide dirt and dust, which is conducive to cleaning the water flosser 1.

[0073] like Figure 3 and Figure 5 As shown, the cross-sectional area of ​​the protrusion 202 gradually decreases toward the direction approaching the recessed portion 102, wherein the protrusion 202 can be constructed in a truncated cone shape or a square cone shape, so that the cross-sectional area of ​​the top of the protrusion 202 is the smallest, and an installation guide is formed between the protrusion 202 and the recessed portion 102, so that the protrusion 202 is easier to insert into the recessed portion 102, thereby improving the installation efficiency between the water tank 200 and the fuselage 100.

[0074] like Figure 2 and Figure 5 As shown, there are multiple protrusions 202, including a first protrusion and a second protrusion, and there are multiple recesses 102, including a first recess and a second recess. The first protrusion is inserted into the first recess, and the second protrusion is inserted into the second recess. The first protrusion cooperates with the first recess earlier than the second protrusion cooperates with the second recess.

[0075] In this way, a magnetic attraction can be formed between the first protrusion 101 and the second magnetic part 201 in the first recessed part first, thereby providing a driving force for the subsequent cooperation between other protrusions 202 and recessed parts 102. The subsequent cooperation between other protrusions 202 and recessed parts 102 is faster, thereby improving the installation efficiency between the water tank 200 and the fuselage 100.

[0076] like Figure 2 and Figure 5 As shown, there are multiple protrusions 202 and multiple recesses 102, and the multiple protrusions 202 are matched with the multiple recesses 102 in a one-to-one manner. When the water tank 200 is connected to the side of the body 100, the multiple protrusions 202 are arranged at intervals along the length direction of the oral irrigator 1, and the distance between the uppermost protrusion 202 and the top of the water tank 200 is smaller than the distance between the protrusion 202 and the middle of the water tank 200, and the distance between the lowermost protrusion 202 and the bottom of the water tank 200 is smaller than the distance between the protrusion 202 and the middle of the water tank 200.

[0077] In this way, the raised portion 202 at the uppermost part is closer to the top of the water tank 200, and the raised portion 202 at the lowermost part is closer to the bottom of the water tank 200. The connecting force between the water tank 200 and the fuselage 100 can act on the upper and lower ends of the water tank 200, thereby preventing the water tank 200 from rotating relative to the fuselage 100, and making the relative position between the water tank 200 and the fuselage 100 more stable.

[0078] Specifically, the body 100 is provided with a protrusion 202, the water tank 200 is provided with a recessed portion 102, the first magnetic component 101 is provided on the protrusion 202, and the second magnetic component 201 is provided on the recessed portion 102; or the body 100 is provided with a recessed portion 102, the water tank 200 is provided with a protrusion 202, the first magnetic component 101 is provided on the recessed portion 102, and the second magnetic component 201 is provided on the protrusion 202.

[0079] By aligning the raised portion 202 and the recessed portion 102, precise positioning between the first magnetic component 101 and the second magnetic component 201 can be achieved, thereby improving the positioning accuracy between the first magnetic component 101 and the second magnetic component 201, thereby ensuring that the magnetic attraction force between the first magnetic component 101 and the second magnetic component 201 is relatively large, and the connection between the fuselage 100 and the water tank 200 is stable and reliable.

[0080] The above-mentioned body 100 is connected to a first cover body (not shown in the figure), and the first magnetic component 101 is arranged between the first cover body and the body 100. The first cover body protrudes relative to the outer surface of the body 100. At this time, a recessed portion 102 cooperating with the first cover body is provided on the water tank 200.

[0081] Since the first cover body and the body 100 can be separately provided, the first magnetic component 101 can be first fixed to the first cover body or to the body 100, and then the first cover body and the body 100 can be connected. The fixing method of the first magnetic component 101 is simpler, and the first cover body forms a protrusion 202, and there is no need to set an additional protrusion structure on the body 100. The first cover body integrates two functions, reduces the number of parts, and improves production efficiency.

[0082] Furthermore, a first mounting groove (not shown in the figure) is provided on the outer surface of the fuselage 100, a part of the first magnetic member 101 is provided in the first mounting groove, and another part of the first magnetic member 101 is located outside the first mounting groove and is blocked by the first cover. By providing the first mounting groove, on the one hand, the fuselage 100 and the first magnetic member 101 can be pre-positioned, and then the first cover is connected to the fuselage 100 to realize the assembly of the fuselage 100, and the relative position between the fuselage 100 and the first magnetic member 101 is more stable. On the other hand, the size of the first magnetic member 101 protruding from the fuselage 100 can be reduced, thereby reducing the size of the first cover protruding from the fuselage 100 and reducing the cost.

[0083] like Figure 5 and Figure 6 As shown, the water tank 200 is connected to a second cover 203, and the second magnetic component 201 is disposed between the second cover 203 and the water tank 200. The second cover 203 protrudes relative to the outer surface of the water tank 200. At this time, a recessed portion 102 cooperating with the second cover 203 is disposed on the body 100.

[0084] Since the second cover body 203 and the body 100 can be set separately, the second magnetic component 201 can be first fixed to the second cover body 203 or to the body 100, and then the second cover body 203 and the body 100 are connected. The fixing method of the second magnetic component 201 is simpler, and the second cover body 203 forms a protrusion 202, and there is no need to set an additional protrusion structure on the body 100. The second cover body 203 integrates two functions, reduces the number of parts, and improves production efficiency.

[0085] Furthermore, a second mounting groove 204 is provided on the outer surface of the water tank 200, a part of the second magnetic member 201 is provided in the second mounting groove 204, and another part of the second magnetic member 201 is located outside the second mounting groove 204 and is blocked by the second cover 203. By providing the second mounting groove 204, on the one hand, the water tank 200 and the second magnetic member 201 can be pre-positioned, and then the second cover 203 is connected to the water tank 200 to realize the assembly of the water tank 200, and the relative position between the water tank 200 and the second magnetic member 201 is more stable, and the installation efficiency is higher. On the other hand, the size of the second magnetic member 201 protruding from the water tank 200 can be reduced, thereby reducing the size of the second cover 203 protruding from the fuselage 100, thereby reducing the cost.

[0086] The water tank 200 is movable between a first position and a second position relative to the body 100. When the water tank 200 is in the first position, the water storage space 208 has a first volume, and there is a first distance between the first magnetic component 101 and the second magnetic component 201. When the water tank 200 is in the second position, the water storage space 208 has a second volume, and there is a second distance between the first magnetic component 101 and the second magnetic component 201. The first volume is greater than the second volume, and the first distance is less than the second distance.

[0087] When the oral irrigator 1 is in use, the water tank 200 can be in a first position to increase the volume of the water storage space 208 to store more liquid, and the oral irrigator 1 can be used for a longer time after each replenishment of liquid; when the oral irrigator 1 is stored, the water tank 200 can be in a second position to reduce the volume of the water storage space 208, and the oral irrigator 1 is smaller in size for easy storage and carrying.

[0088] Since the distance between the first magnetic component 101 and the second magnetic component 201 is smaller when the water tank 200 is in the first position, the magnetic attraction between the first magnetic component 101 and the second magnetic component 201 is greater, the connection between the water tank 200 and the body 100 is more stable, and the water storage space 208 can store more liquid.

[0089] Furthermore, when the water tank 200 is in the second position, the outer surface of the water tank 200 smoothly transitions to the outer surface of the body 100. In this way, when the water tank 200 is in the second position, no step structure is formed between the water tank 200 and the body 100, which optimizes the grip of the water flosser 1, makes the water flosser 1 fit the palm more closely, and avoids the palm being suspended in the air; on the other hand, the connection between the water tank 200 and the body 100 is easy to clean, and is not easy to hide dirt and dust, which is conducive to cleaning the water flosser 1.

[0090] like Figure 3 As shown, the distance between the first magnetic component 101 and the second magnetic component 201 is not greater than 3 mm, wherein the distance between the first magnetic component 101 and the second magnetic component 201 can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm.

[0091] In this way, the distance between the first magnetic component 101 and the second magnetic component 201 is small, and the magnetic attraction force between the first magnetic component 101 and the second magnetic component 201 is large, ensuring that the magnetic attraction force between the first magnetic component 101 and the second magnetic component 201 is sufficient, effectively avoiding relative movement between the water tank 200 and the body 100, and reliably maintaining the relative position between the water tank 200 and the body 100.

[0092] like Figure 2 and Figure 5As shown, there is a preset relative position between the above-mentioned body 100 and the water tank 200, there are multiple first magnetic components 101, and the multiple first magnetic components 101 are arranged at intervals, there are multiple second magnetic components 201, and the multiple second magnetic components 201 are arranged at intervals and are magnetically attracted to the multiple first magnetic components 101 in a one-to-one correspondence, and the force between the multiple first magnetic components 101 and the multiple second magnetic components 201 has a tendency to keep the body 100 and the water tank 200 in the preset relative position.

[0093] In this way, the multiple magnetic forces between the multiple first magnetic components 101 and the multiple second magnetic components 201 as a whole form a guiding force between the fuselage 100 and the water tank 200, which can guide the user to assemble so that the fuselage 100 and the water tank 200 remain in a preset relative position after installation, avoiding reverse installation, wrong installation, etc., without manual alignment, and assembly is more convenient.

[0094] like Figure 2 As shown, the fuselage 100 includes a motor 107, and the arrangement of the motor 107 is at least one of the following:

[0095] First, at least part of the first magnetic member 101 and the motor 107 are arranged in a staggered manner in the length direction of the oral flushing device 1;

[0096] The second type is that at least a portion of the second magnetic member 201 and the motor 107 are arranged in a staggered manner in the length direction of the oral flushing device 1;

[0097] The third type is that on a plane perpendicular to the axial direction of the oral irrigator 1, at least a portion of the orthographic projection of the first magnetic attraction member 101 is staggered with the orthographic projection of the motor 107;

[0098] Fourthly, on a plane perpendicular to the axial direction of the oral irrigator 1 , at least a portion of the orthographic projection of the second magnetic attraction member 201 is offset from the orthographic projection of the motor 107 .

[0099] In this way, the first magnetic component 101 and the second magnetic component 201 can be staggered with the motor 107, reducing the interference of the first magnetic component 101 and the second magnetic component 201 on the internal magnet of the motor 107, avoiding the occurrence of power decline of the motor 107, ensuring the normal use of the motor 107, and extending the service life of the motor 107.

[0100] like Figure 2As shown, the above-mentioned body 100 includes a motor 107. When the water tank 200 is connected to the end of the body 100, the first magnetic component 101 is arranged at the end of the body 100 facing the water tank 200, and in the length direction of the oral irrigator 1, the motor 107 and the end of the body 100 facing the water tank 200 are spaced apart; when the water tank 200 is connected to the side of the body 100, the first magnetic component 101 is arranged on the side of the body 100 facing the water tank 200, and in the radial direction of the oral irrigator 1, the motor 107 and the side of the body 100 facing the water tank 200 are spaced apart.

[0101] In this way, the distance between the motor 107 and the first magnetic component 101 and the second magnetic component 201 can be increased, so that the distance between the motor 107 and the first magnetic component 101 and the second magnetic component 201 is farther, reducing the interference of the first magnetic component 101 and the second magnetic component 201 on the internal magnet of the motor 107, avoiding the occurrence of power decline of the motor 107, ensuring the normal use of the motor 107, and extending the service life of the motor 107.

[0102] like Figure 2 As shown in the figure, the structure of the above-mentioned water flosser 1 is at least one of the following:

[0103] The first type, the first magnetic attraction member 101 is disposed inside the body 100;

[0104] The second type, the body 100 includes a casing, and the first magnetic attraction member 101 is disposed in a casing wall of the casing;

[0105] The third type is that the water tank 200 is provided with a water tank shell, and the second magnetic attraction component 201 is arranged in the shell wall of the water tank shell, wherein the water tank shell includes the above-mentioned second cover body 203.

[0106] In this way, the first magnetic component 101 will not be exposed to the external space of the fuselage 100, reducing the probability of the first magnetic component 101 contacting the external air, preventing the first magnetic component 101 from being corroded when the external humidity of the fuselage 100 is high, thereby avoiding the first magnetic component 101 from rusting and bumping, reducing the probability of damage to the first magnetic component 101, and extending the service life of the first magnetic component 101. In addition, the second magnetic component 201 will not be exposed to the external space and internal space of the water tank 200, preventing the first magnetic component 101 from being corroded when the external humidity and internal humidity of the water tank 200 are high, thereby avoiding the second magnetic component 201 from rusting and bumping, reducing the probability of damage to the second magnetic component 201, and extending the service life of the second magnetic component 201.

[0107] like Figure 1 and Figure 2As shown, when the water tank 200 is connected to the side of the body 100, at least one of an operation module 400 and a display module is provided on the side of the body 100 facing away from the water tank 200. The operation module 400 may be a touch screen, a button, a sliding key, a rocker, etc., and the display module may be a display panel, a touch screen, etc.

[0108] In this way, when the user operates the operating module 400 or the display screen, pressure is applied to the body 100 from the side of the body 100 facing away from the water tank 200, so the body 100 moves toward the direction close to the water tank 200, and the body 100 and the water tank 200 will not be separated by force, thereby avoiding misalignment between the body 100 and the water tank 200 due to force.

[0109] The water tank 200 is provided with a connection structure (not shown in the figure), and the connection structure is connected to the fuselage 100, or the fuselage 100 is provided with a connection structure, and the connection structure is connected to the water tank 200, or both the water tank 200 and the fuselage 100 are provided with a connection structure to achieve mutual connection. The connection structure can be a buckle, Velcro, restraint belt or other structural connection.

[0110] In this way, in addition to the magnetic attraction force, the water tank 200 and the body 100 are also connected by other connecting forces. The connecting force between the water tank 200 and the body 100 is stronger, the connection between the water tank 200 and the body 100 is more stable, the water tank 200 and the body 100 are not easy to be relative to each other, and the magnetic attraction force can provide a guide for the connection of the connecting structure, which facilitates the connection of the connecting structure and improves the assembly efficiency and ease of use of the water flosser 1.

[0111] A buffer pad is provided between the body 100 and the water tank 200 to fill the gap between the body 100 and the water tank 200. The buffer pad may be made of materials such as sponge, rubber, and silicone. By providing the buffer pad, on the one hand, the friction between the body 100 and the water tank 200 can be increased to ensure the relative position stability between the body 100 and the water tank 200. On the other hand, the gap between the body 100 and the water tank 200 can be filled to avoid relative shaking between the body 100 and the water tank 200. The collision noise between the water tank 200 and the body 100 can also be absorbed to optimize the user experience of the oral irrigator 1.

[0112] In the case where the water tank 200 is connected to the end of the body 100, a part of the water tank 200 is located on the side of the body 100 in the radial direction of the body 100. The body 100 usually needs to be arranged with structures such as batteries, control circuit board 120, pump body 110, etc., and a part of the water tank 200 is arranged on the side of the body 100, and the center of gravity of the water tank 200 as a whole is closer to the nozzle 300. The energy required to pump the liquid in the water tank 200 to the nozzle 300 and spray it out is small, which can save energy and improve the endurance of the water flosser 1. In addition, the length of the water flosser 1 can be reduced accordingly, and the center of gravity of the water flosser 1 as a whole is lowered, which improves the stability of the water flosser 1 when it is placed, and reduces the probability of the water flosser 1 tipping over.

[0113] like Figure 1 and Figure 2 As shown, when the water tank 200 is connected to the side of the body 100, the bottom of the water tank 200 is flush with the bottom of the body 100, and the top of the water tank 200 is flush with the top of the body 100. In this way, the center of gravity of the water tank 200 as a whole is closer to the nozzle 300, and the energy required to pump the liquid in the water tank 200 to the nozzle 300 and spray it out is relatively small, which can save energy and improve the endurance of the water flosser 1. In addition, the length of the water flosser 1 can be further reduced, and the center of gravity of the water flosser 1 as a whole is further lowered, which improves the stability of the water flosser 1 when it is placed, and further reduces the probability of the water flosser 1 tipping over.

[0114] like Figure 2 , Figure 4-Figure 7 As shown, the fuselage 100 and the water tank 200 are detachably connected, the fuselage 100 is provided with a first interface 105, the water tank 200 is provided with a second interface 205, the first interface 105 is connected to the pump body 110 in the fuselage 100, and the second interface 205 is provided with a valve 207; when the water tank 200 is connected to the fuselage 100, the valve 207 is opened, and the first interface 105 and the second interface 205 are connected; when the water tank 200 is separated from the fuselage 100, the valve 207 is closed, and the connection between the first interface 105 and the second interface 205 is disconnected.

[0115] The water tank 200 can be replenished with liquid when the body 100 is connected to the water tank 200, and can also be replenished with liquid when the body 100 is separated from the water tank 200. The water tank 200 has more diverse and flexible ways of replenishing liquid, and the body 100 and the water tank 200 are placed separately for easy carrying.

[0116] When the body 100 and the water tank 200 are connected, since the valve 207 is open, the liquid in the water tank 200 flows to the nozzle 300 through the second interface 205 and the first interface 105; when the body 100 and the water tank 200 are separated, since the valve 207 is closed, the liquid in the water tank 200 will not leak through the second interface 205, which is conducive to carrying the water tank 200 separately and replenishing the liquid in the water tank 200.

[0117] like Figure 7 and Figure 8 As shown, a resisting member 106 is provided at the first interface 105. When the water tank 200 is connected to the body 100, the resisting member 106 stops at the valve 207 to open the valve 207. For example, when the water tank 200 is connected to the side of the body 100, the magnetic attraction force generated between the first magnetic member 101 and the second magnetic member 201 drives the resisting member 106 to open the valve 207; when the water tank 200 is connected to the bottom of the body 100, the magnetic attraction force generated between the first magnetic member 101 and the second magnetic member 201 and the gravity of the body 100 can drive the resisting member 106 to open the valve 207. After the water tank 200 and the body 100 are separated, the valve 207 can be reset to the state of closing the second interface 205.

[0118] In this way, the switching state of the valve 207 is directly linked to the separation and connection between the water tank 200 and the body 100, which is beneficial to ensure that the valve 207 has a sealing effect on the second interface 205 when the water tank 200 and the body 100 are separated, and ensure that the second interface 205 is open when the water tank 200 and the body 100 are connected, so that the second interface 205 is connected with the first interface 105, thereby facilitating the normal operation of the water flosser 1 and the independent operation of the water tank 200 to replenish liquid.

[0119] like Figure 2 , Figure 5 and Figure 6 As shown, when the water tank 200 is connected to the side of the body 100, the first interface 105 is provided at the bottom end of the body 100, and the second interface 205 is provided at the bottom end of the water tank 200. In this way, the distance between the second interface 205 and the bottom wall of the water storage space 208 is closer, the water pipe between the second interface 205 and the bottom wall of the water storage space 208 can be shortened, and less liquid remains in the water storage space 208. In addition, the distance between the first interface 105 and the second interface 205 is closer, and the communication between the first interface 105 and the second interface 205 can be achieved without setting an additional communication structure, and the structure of the water flosser 1 is simpler.

[0120] like Figure 2 , Figure 8As shown, the water flosser 1 further includes a sealing member 210, the outer circumference of the sealing member 210 is provided with a first sealing protrusion 211, and the end of the sealing member 210 is provided with a second sealing protrusion 212. The first sealing protrusion 211 contacts the inner circumference of the first interface 105, and the second sealing protrusion 212 abuts against the side of the water tank 200 facing the body 100, or the first sealing protrusion 211 contacts the inner circumference of the second interface 205, and the second sealing protrusion 212 abuts against the side of the body 100 facing the water tank 200.

[0121] That is to say, the first sealing protrusion 211 contacts the inner circumferential surface of the first interface 105, or the first sealing protrusion 211 contacts the inner circumferential surface of the second interface 205, to achieve axial sealing of the first interface 105 and the second interface 205, and avoid axial leakage of liquid along the second interface 205; the second sealing protrusion 212 contacts the side of the water tank 200 facing the fuselage 100, or the first sealing protrusion 211 contacts the side of the fuselage 100 facing the water tank 200, to achieve radial sealing of the first interface 105 and the second interface 205, and avoid radial leakage of liquid along the second interface 205.

[0122] In this way, the sealing member 210 can achieve a double sealing effect, and the first interface 105 and the second interface 205 can be sealed from different directions, so that the sealing effect is better and the risk of liquid leakage is greatly reduced.

[0123] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0124] The above are only preferred embodiments of the present application and are 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 flosser, characterized in that: include: The body is provided with a first magnetic attraction member; A water tank connected to the fuselage, the water tank defines a water storage space or defines a water storage space together with the fuselage, the water tank is provided with a second magnetic member, and the first magnetic member and the second magnetic member are magnetically matched; The sum of the gravity of the water tank and the gravity of the liquid with the maximum capacity of the water storage space is smaller than the magnetic attraction, and the magnetic attraction is used to separate the water tank from the fuselage without being affected by gravity.

2. The oral rinser according to claim 1, characterized in that: The side of the fuselage facing the water tank is flat and provided with the first magnetic member, the side of the water tank facing the fuselage is flat and provided with the second magnetic member, and the side of the fuselage facing the water tank is in contact with the side of the water tank facing the fuselage; or The side of the fuselage facing the water tank is configured as a curved surface and is provided with the first magnetic component, the side of the water tank facing the fuselage is configured as a curved surface and is provided with the second magnetic component, and the side of the fuselage facing the water tank is in contact with the side of the water tank facing the fuselage.

3. The oral rinser according to claim 1, characterized in that: There is a smooth transition between the outer surface of the water tank and the outer surface of the fuselage.

4. The oral rinser according to claim 1, characterized in that: One of the body and the water tank is provided with a protruding portion and the other is provided with a recessed portion, and the protruding portion is inserted into the recessed portion.

5. The oral rinser according to claim 4, characterized in that: The cross-sectional area of ​​the protrusion gradually decreases toward the direction approaching the recessed portion.

6. The oral rinser according to claim 4, characterized in that: There are a plurality of protrusions, including a first protrusion and a second protrusion; there are a plurality of recesses, including a first recess and a second recess; the first protrusion is inserted into the first recess, and the second protrusion is inserted into the second recess; The first protrusion cooperates with the first recessed portion earlier than the second protrusion cooperates with the second recessed portion.

7. The oral rinser according to claim 4, characterized in that: There are multiple protrusions and multiple recesses, and the multiple protrusions are matched with the multiple recesses in a one-to-one correspondence; When the water tank is connected to the side of the body, the plurality of raised portions are arranged at intervals along the length direction of the water flosser, the distance between the uppermost raised portion and the top of the water tank is smaller than the distance between the raised portion and the middle of the water tank, and the distance between the lowermost raised portion and the bottom of the water tank is smaller than the distance between the raised portion and the middle of the water tank.

8. The oral rinser according to claim 4, characterized in that: The body is provided with the raised portion, the water tank is provided with the recessed portion, the first magnetic element is provided on the raised portion, and the second magnetic element is provided on the recessed portion; or The body is provided with the recessed portion, the water tank is provided with the raised portion, the first magnetic attraction component is provided at the recessed portion, and the second magnetic attraction component is provided at the raised portion.

9. The oral rinser according to claim 1, characterized in that: The body is connected to a first cover, the first magnetic attraction member is disposed between the first cover and the body, and the first cover protrudes relative to an outer surface of the body; and / or The water tank is connected to a second cover body, the second magnetic attraction member is arranged between the second cover body and the water tank, and the second cover body protrudes relative to the outer surface of the water tank.

10. The oral rinser according to claim 9, characterized in that: When the fuselage is connected to the first cover, a first mounting groove is provided on the outer surface of the fuselage, a part of the first magnetic attraction member is provided in the first mounting groove, and another part of the first magnetic attraction member is located outside the first mounting groove and is blocked by the first cover; When the water tank is connected to a second cover body, a second mounting groove is provided on the outer surface of the water tank, a part of the second magnetic component is provided in the second mounting groove, and another part of the second magnetic component is located outside the second mounting groove and is blocked by the second cover body.

11. The oral rinser according to claim 1, characterized in that: The water tank is movable relative to the body between a first position and a second position; When the water tank is in the first position, the water storage space has a first volume, and there is a first distance between the first magnetic component and the second magnetic component. When the water tank is in the second position, the water storage space has a second volume, and there is a second distance between the first magnetic component and the second magnetic component. The first volume is greater than the second volume, and the first distance is less than the second distance.

12. The oral rinser according to claim 11, characterized in that: When the water tank is in the second position, the outer surface of the water tank and the outer surface of the fuselage have a smooth transition.

13. The oral rinser according to claim 1, characterized in that: The distance between the first magnetic attraction component and the second magnetic attraction component is no more than 3 mm.

14. The oral rinser according to claim 1, characterized in that: There is a preset relative position between the fuselage and the water tank, there are multiple first magnetic components, and the multiple first magnetic components are arranged at intervals, there are multiple second magnetic components, and the multiple second magnetic components are arranged at intervals and are magnetically attracted to the multiple first magnetic components one by one, and the force between the multiple first magnetic components and the multiple second magnetic components has a tendency to keep the fuselage and the water tank at the preset relative position.

15. The oral rinser according to claim 1, characterized in that: The fuselage includes a motor, and the motor is arranged in at least one of the following ways: At least a portion of the first magnetic attraction member is staggered with the motor in the length direction of the dental flosser; At least a portion of the second magnetic attraction member is staggered with the motor in the length direction of the oral flusher; On a plane perpendicular to the axial direction of the oral irrigator, at least a portion of the orthographic projection of the first magnetic attraction member is staggered with the orthographic projection of the motor; On a plane perpendicular to the axial direction of the oral irrigator, at least a portion of the orthographic projection of the second magnetic attraction member is offset from the orthographic projection of the motor.

16. The oral rinser according to claim 1, characterized in that: The body includes a motor, and when the water tank is connected to an end of the body, the first magnetic attraction member is disposed at one end of the body facing the water tank, and in the length direction of the water flosser, the motor is spaced apart from the end of the body facing the water tank; or The body includes a motor. When the water tank is connected to the side of the body, the first magnetic component is arranged on the side of the body facing the water tank. In the radial direction of the water flosser, the motor is spaced apart from the side of the body facing the water tank.

17. The oral rinser according to claim 1, characterized in that: The structure of the water flosser is at least one of the following: The first magnetic attraction member is disposed inside the body; The body includes a casing, and the first magnetic attraction member is arranged in a casing wall of the casing; The water tank is provided with a water tank shell, and the second magnetic attraction component is arranged in the shell wall of the water tank shell.

18. The oral rinser according to claim 1, characterized in that: In the case where the water tank is connected to the side of the fuselage, at least one of an operation module and a display module is provided on a side of the fuselage facing away from the water tank.

19. The oral rinser according to claim 1, characterized in that: The water tank is provided with a connecting structure, and the connecting structure is connected to the fuselage; and / or The fuselage is provided with a connecting structure, and the connecting structure is connected to the water tank.

20. The oral rinser according to claim 1, characterized in that: A buffer pad is provided between the fuselage and the water tank, for filling the gap between the fuselage and the water tank.

21. The oral rinser according to claim 1, characterized in that: When the water tank is connected to an end of the fuselage, a portion of the water tank is located on a side of the fuselage in a radial direction of the fuselage.

22. The oral rinser according to claim 1, characterized in that: When the water tank is connected to the side of the fuselage, the bottom end of the water tank is flush with the bottom end of the fuselage, and / or the top end of the water tank is flush with the top end of the fuselage.

23. The oral irrigator according to claim 1, characterized in that: The fuselage and the water tank are detachably connected, the fuselage is provided with a first interface, the water tank is provided with a second interface, the first interface is communicated with a pump body in the fuselage, and the second interface is provided with a valve; When the water tank is connected to the body, the valve is opened, and the first interface is connected to the second interface; When the water tank is separated from the body, the valve is closed to disconnect the first interface from the second interface.

24. The oral rinser according to claim 23, characterized in that: A resisting member is provided at the first interface, and when the water tank is connected to the body, the resisting member abuts against the valve to open the valve.

25. The oral rinser according to claim 23, characterized in that: When the water tank is connected to the side of the fuselage, the first interface is arranged at the bottom end of the fuselage, and the second interface is arranged at the bottom end of the water tank.

26. The oral rinser according to claim 23, characterized in that: Also includes: A sealing member, wherein a first sealing protrusion is disposed on an outer peripheral surface of the sealing member, and a second sealing protrusion is disposed on an end portion of the sealing member; Wherein, the first sealing protrusion contacts the inner peripheral surface of the first interface, and the second sealing protrusion abuts against a side of the water tank facing the fuselage; or The first sealing protrusion contacts the inner circumferential surface of the second interface, and the second sealing protrusion abuts against a side of the body facing the water tank.

27. The oral rinser according to any one of claims 1 to 25, characterized in that: The gravity of the fuselage is G1, the sum of the gravity of the water tank and the gravity of the liquid with the maximum capacity of the water storage space is G2, and the ratio of G1 to G2 is not less than 0.5 and not more than 2.

28. The oral rinser according to any one of claims 1 to 25, characterized in that: The water tank is connected to the end of the fuselage or to the side of the fuselage.

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