Water pick

Abstract

The utility model relates to the technical field of oral cavity cleaning tools, and discloses an oral irrigator which comprises a water tank, a one-way valve, a first sealing ring and a main machine, a valve body of the one-way valve is arranged in the water tank, a water inlet end of the valve body is communicated with the water tank, a water outlet end of the valve body is located in a water outlet hole of the water tank, and a valve element of the one-way valve can move relative to the valve body to open or close the water outlet end. The valve element is sleeved with the first sealing ring, the main machine is detachably connected to the water tank, a first abutting part and a second abutting part are arranged at a water inlet of the main machine, and when the main machine is connected with the water tank, the first abutting part is used for pushing the valve element to move relative to the valve body and opening the water outlet end so that the water outlet end can be communicated with the water inlet. The second abutting part is used for extruding the first sealing ring together with the inner side wall of the water outlet hole. By the adoption of the oral irrigator, when the main machine is connected with the water tank, the second abutting part extrudes the inner circumferential face of the first sealing ring and enables the outer circumferential face of the first sealing ring to abut against the inner side wall of the water outlet hole, the water outlet hole and the water inlet hole are sealed, and the sealing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning tools, in particular to a dental irrigator. Background Art

[0002] With the improvement of people's health awareness, more and more people choose dental irrigators to clean their oral cavities. A dental irrigator pressurizes the cleaning liquid in a water tank through a main body, so that the cleaning liquid is ejected from a nozzle at a high speed and directly acts on the user's teeth and tooth gaps, and uses the impact force of the high-speed cleaning liquid to achieve the purpose of cleaning the oral cavity.

[0003] In related technologies, in order to reduce the difficulty of replenishing the cleaning liquid in the water tank or cleaning, the water tank and the main body are assembled in a detachable manner, so that the water tank and the main body can be separated. However, when the water tank and the main body are assembled, the sealing problem of the connection part for circulating the cleaning liquid needs to be solved urgently. Summary of the Utility Model

[0004] An embodiment of the utility model discloses a dental irrigator. When the main body is connected to the water tank, a second abutting part squeezes the inner peripheral surface of a first sealing ring and makes the outer peripheral surface of the first sealing ring abut against the inner side wall of a water outlet hole, and / or makes one side of the end surface of the first sealing ring away from the water outlet end abut against the main body. The sealing between the water outlet hole and the water inlet hole has a better sealing effect.

[0005] An embodiment of the utility model discloses a dental irrigator, which includes a water tank, a one-way valve, a first sealing ring and a main body. The water tank has a water outlet hole. The one-way valve includes a valve body and a valve core. The valve body is arranged in the water tank. The valve body has a water inlet end and a water outlet end. The water inlet end is communicated with the inside of the water tank. The water outlet end is located at the water outlet hole. The valve core is movably arranged in the valve body. The valve core can move relative to the valve body to open or close the water outlet end. The first sealing ring is sleeved on the valve core. One side of the first sealing ring abuts against the end surface of the water outlet end. The main body is detachably connected to the water tank. The main body has a water inlet hole. A first abutting part and a second abutting part are arranged at the water inlet hole. The first abutting part is used for pushing the valve core to move relative to the valve body and opening the water outlet end when the main body is connected to the water tank, so that the water outlet end is communicated with the water inlet hole. The second abutting part is used for squeezing the inner peripheral surface of the first sealing ring and making the outer peripheral surface of the first sealing ring abut against the inner side wall of the water outlet hole, and / or making one side of the end surface of the first sealing ring away from the water outlet end abut against the main body.

[0006] In this embodiment, the main machine is detachably connected to the water tank. When the main machine is connected to the water tank, the first abutting portion at the water outlet hole of the main machine pushes the valve core to move relative to the valve body and opens the water outlet end, so that the water outlet end communicates with the water inlet hole, and the cleaning liquid in the water tank can flow out from the water outlet end and flow to the water inlet hole through the water outlet hole, so that the main machine can receive the cleaning liquid in the water tank.

[0007] At the same time, the second abutting portion at the water outlet hole of the main machine squeezes the inner peripheral surface of the first sealing ring and makes the outer peripheral surface of the first sealing ring abut against the inner side wall of the water outlet hole, and / or makes one side of the end surface of the first sealing ring facing away from the water outlet end abut against the main machine, so as to seal the water outlet hole and the water inlet hole by using the first sealing ring, and the sealing effect is better.

[0008] That is to say, when the main machine of this embodiment is connected to the water tank, the first abutting portion and the second abutting portion can simultaneously realize the waterway connection and sealing between the water outlet hole and the water inlet hole, and the assembly operation of the main machine and the water tank is simple and reliable.

[0009] As an optional implementation manner, in the embodiment of the present utility model, a first elastic protrusion is provided on one side of the end surface of the first sealing ring facing away from the water outlet end, the first elastic protrusion extends along the circumference of the first sealing ring, and the first elastic protrusion is used to abut against the main machine when the main machine is connected to the water tank.

[0010] In this way, by the first elastic protrusion abutting against the main machine, the first elastic protrusion is elastically deformed under the extrusion of the main machine and the end surface of the water outlet end, so as to realize the sealing between the main machine and the end surface of the water outlet end, and the first elastic protrusion can increase the contact area between the main machine and the first sealing ring, thereby improving the sealing effect.

[0011] As an optional implementation manner, in the embodiment of the present utility model, the second abutting portion is arranged around the circumference of the water inlet hole, the inner peripheral surface of the first sealing ring is provided with a second elastic protrusion, the second elastic protrusion extends along the circumference of the first sealing ring, and the second elastic protrusion is used to abut against the outer peripheral surface of the second abutting portion when the main machine is connected to the water tank.

[0012] In this way, on the one hand, by arranging the second abutting portion around the circumference of the water inlet hole, when the second abutting portion abuts against the inner peripheral surface of the first sealing ring to achieve sealing, the entire water inlet hole can be sealed, and the sealing effect is better. On the other hand, by the second elastic protrusion abutting against the outer peripheral surface of the second abutting portion, the second elastic protrusion is elastically deformed under the extrusion of the outer peripheral surface of the second abutting portion and the inner side wall of the water outlet hole, and the second elastic protrusion can increase the contact area between the outer peripheral surface of the second abutting portion and the first sealing ring, thereby improving the sealing effect.

[0013] As an optional implementation, in an embodiment of the utility model, a third elastic protrusion is provided on the outer circumferential surface of the first sealing ring, and the third elastic protrusion is extended along a circumference of the first sealing ring, and the third elastic protrusion abuts against the inner wall of the water outlet.

[0014] In this way, the third elastic protrusion abuts against the inner wall of the water outlet hole, and the third elastic protrusion is squeezed by the inner wall of the water outlet hole and the outer peripheral surface of the second abutting portion to undergo elastic deformation. The third elastic protrusion can increase the contact area between the inner wall of the water outlet hole and the first sealing ring, thereby improving the sealing effect.

[0015] As an optional embodiment, in an embodiment of the utility model, the outer peripheral surface of the second abutment portion is configured as a first conical surface, and the width of the end of the second abutment portion facing away from the first sealing ring is greater than the width of the end of the second abutment portion facing the first sealing ring, and the inner peripheral surface of the first sealing ring is configured as a second conical surface matching the first conical surface.

[0016] In this way, the first tapered surface cooperates with the second tapered surface to form a matching inclined guide surface, thereby providing a guide for the second abutting portion to squeeze the first sealing ring, thereby reducing the difficulty of assembly.

[0017] As an optional implementation, in an embodiment of the utility model, the first sealing ring and the valve core are integrally formed.

[0018] In this way, by forming the first sealing ring and the valve core in one piece, the number of parts of the oral irrigator can be reduced, simplifying the assembly process. In addition, the first sealing ring and the valve core do not need to be assembled, which can avoid the occurrence of a gap or a virtual position between the first sealing ring and the valve core during assembly, resulting in poor sealing between the first seal and the valve core, thereby improving the waterproof performance.

[0019] As an optional implementation, in an embodiment of the utility model, the water tank is provided with a first positioning portion, the first positioning portion is located at the water outlet, the main unit is provided with a second positioning portion corresponding to the first positioning portion, the second positioning portion is located at the water inlet, and the second positioning portion is used to cooperate with the first positioning portion to position the water tank and the main unit.

[0020] In this way, by connecting and positioning the water tank and the main unit through the first positioning portion and the second positioning portion, the assembly accuracy of the water tank and the main unit can be improved, especially the precise docking of the water outlet hole of the water tank with the water inlet hole of the main unit, which can improve the accuracy of the sealing assembly and thus improve the sealing effect.

[0021] As an optional implementation, in an embodiment of the utility model, one of the first positioning portion and the second positioning portion is a protrusion, and the other is a recessed portion, the first positioning portion is arranged around the water outlet, and the second positioning portion is arranged around the water inlet.

[0022] In this way, when the first positioning part and the second positioning part are connected in cooperation, the first positioning part surrounds the water outlet hole and the second positioning part surrounds the water inlet hole, which can improve the precise docking of the water outlet hole and the water inlet hole, so that the center of the water outlet hole is collinear with the center of the water inlet hole. In addition, a plurality of first positioning parts and second positioning parts with different structures are provided, which can be selected according to actual conditions, and this embodiment does not specifically limit this.

[0023] As an optional embodiment, in an embodiment of the utility model, the outer peripheral surface of the protrusion is configured as a third conical surface, and the width of the end of the protrusion facing away from the recessed portion is greater than the width of the end of the protrusion facing the recessed portion, and the inner side surface of the recessed portion is configured as a fourth conical surface matching the third conical surface.

[0024] In this way, the third tapered surface cooperates with the fourth tapered surface to form a matching inclined guide surface, thereby providing a guide for the matching connection between the first positioning portion and the second positioning portion, thereby reducing the difficulty of assembly.

[0025] As an optional implementation, in an embodiment of the utility model, the detachable connection method between the water tank and the host includes one or more of a magnetic connection, a snap connection, and a button connection.

[0026] In this way, the water tank and the main unit can be detachably connected through one or more different connection methods. The difficulty of disassembling and assembling the water tank and the main unit is relatively low, and the detachable connection method can be selected according to actual conditions. This embodiment does not make specific limitations on this.

[0027] As an optional implementation, in an embodiment of the utility model, the water tank is provided with a third positioning portion, and the host is provided with a fourth positioning portion corresponding to the third positioning portion, and the fourth positioning portion is used to cooperate with the third positioning portion to position the water tank and the host.

[0028] In this way, the water tank and the main unit are connected and positioned by the third positioning portion and the fourth positioning portion, so that the assembly accuracy of the water tank and the main unit can be improved.

[0029] As an optional implementation, in the embodiment of the utility model, one of the third positioning portion and the fourth positioning portion is a protrusion, and the other is a depression.

[0030] In this way, by providing the third positioning parts and the fourth positioning parts with various different structures, selection can be made according to the actual situation, and this embodiment does not make specific limitations thereto.

[0031] As an alternative implementation manner, in the embodiment of the present utility model, there are a plurality of the third positioning parts, and the plurality of the third positioning parts are arranged at intervals along the height direction of the water tank; there are a plurality of the fourth positioning parts, and the plurality of the fourth positioning parts are arranged at intervals along the height direction of the main machine. The plurality of the fourth positioning parts are respectively used for being connected with the plurality of the third positioning parts in a one-to-one correspondence to position the water tank and the main machine.

[0032] In this way, through the one-to-one connection and cooperation between the plurality of the third positioning parts and the plurality of the fourth positioning parts, there are a plurality of different positions for positioning between the main machine and the water tank, and the plurality of different positions are located in the height direction x of the water tank and the main machine, which can improve the assembly and positioning accuracy between the main machine and the water tank.

[0033] As an alternative implementation manner, in the embodiment of the present utility model, the oral irrigator further includes a first component and a second component. The water tank is provided with the first component at a position corresponding to the third positioning part, and the main machine is provided with the second component at a position corresponding to the fourth positioning part. The second component is used for magnetically connecting with the first component.

[0034] In this way, through the magnetic connection between the first component and the second component, the detachable connection between the main machine and the water tank can be realized. Moreover, by using the connection and cooperation between the third positioning part and the fourth positioning part, the first component and the second component can be accurately docked, and the strength of the magnetic connection can be improved.

[0035] As an alternative implementation manner, in the embodiment of the present utility model, the first component and the second component are magnetic elements with opposite magnetic polarities, or one of the first component and the second component is a metal part, and the other is a magnetic element.

[0036] In this way, by providing various different first components and second components, selection can be made according to the actual situation, and this embodiment does not make specific limitations thereto.

[0037] As an alternative implementation manner, in the embodiment of the present utility model, the valve core is movably arranged in the valve body along the opening direction of the water inlet end. The one-way valve further includes an elastic member, and two ends of the elastic member are respectively connected to the valve core and the valve body. The elastic member is used for providing an elastic acting force to reset the valve core relative to the valve body.

[0038] In this way, the valve core is movably arranged in the valve body along the opening direction of the water inlet end. Driven by the first abutting part, the valve core can move relative to the valve body along the opening direction of the water inlet end to open the water outlet end. At the same time, the elastic part is squeezed, so that the elastic part has an elastic acting force.

[0039] When the main body is separated from the water tank, the first abutting part is separated from the valve core. Driven by the elastic acting force provided by the elastic part, the valve core can move relative to the valve body along the opening direction of the water inlet end to close the water outlet end, realizing the reset of the valve core relative to the valve body.

[0040] As an optional implementation manner, in the embodiment of the present utility model, the valve core includes a main body part and a deformation part. The main body part is arranged on the end face of the water outlet end. The deformation part is arranged on the main body part, and the deformation part extends from the main body part into the valve body. The deformation part can deform relative to the main body part to be movably arranged relative to the valve body along the opening direction of the water inlet end. One end of the deformation part away from the main body part is connected to one end of the elastic part.

[0041] In this way, when the main body is connected to the water tank, the first abutting part abuts against the deformation part. The deformation part deforms relative to the main body part under the push of the first abutting part. At this time, the deformation part can move relative to the valve body along the opening direction of the water inlet end to open the water outlet end.

[0042] As an optional implementation manner, in the embodiment of the present utility model, a second sealing ring is sleeved on the water outlet end, and the outer peripheral surface of the second sealing ring is pressed against the inner side wall of the water outlet hole.

[0043] In this way, by pressing the second sealing ring between the water outlet end and the inner side wall of the water outlet hole, the second sealing ring can seal between the water outlet end and the inner side wall of the water outlet hole, realizing the sealing design of the one-way valve and the water outlet hole of the water tank.

[0044] As an optional implementation manner, in the embodiment of the present utility model, the main body includes a housing, a water pump and a nozzle. The housing is detachably connected to the water tank. The housing has the water inlet hole. The water pump is arranged in the housing. The water pump is communicated with the water inlet hole. The nozzle is arranged on the housing and is communicated with the water pump.

[0045] In this way, when the housing is connected to the water tank, the cleaning liquid in the water tank can enter the water pump through the water outlet hole, so as to pressurize the cleaning liquid by the water pump to spray the cleaning liquid at a high speed from the nozzle for the user to perform oral cleaning.

[0046] Compared with the prior art, the embodiments of the present utility model have at least the following beneficial effects:

[0047] In the embodiment of the utility model, the main unit is detachably connected to the water tank. When the main unit is connected to the water tank, the first abutting portion at the water outlet of the main unit pushes the valve core to move relative to the valve body and open the water outlet end, so that the water outlet end is connected to the water inlet hole, and the cleaning liquid in the water tank can flow out from the water outlet end and flow to the water inlet hole through the water outlet hole, so that the main unit can receive the cleaning liquid in the water tank. At the same time, the second abutting portion at the water outlet of the main unit squeezes the inner circumference of the first sealing ring and makes the outer circumference of the first sealing ring abut against the inner wall of the water outlet hole, and / or makes the side of the end face of the first sealing ring away from the water outlet end abut against the main unit, so that the first sealing ring is used to seal the water outlet and the water inlet, and the sealing effect is better.

[0048] That is to say, when the main unit of this embodiment is connected to the water tank, the first abutting portion and the second abutting portion can simultaneously achieve water communication and sealing between the water outlet and the water inlet, and the assembly operation of the main unit and the water tank is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this technical field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 It is a structural schematic diagram of a water flosser disclosed in an embodiment of the utility model;

[0051] Figure 2 It is a schematic diagram of the exploded structure of a water flosser disclosed in an embodiment of the utility model;

[0052] Figure 3 It is a schematic diagram of the exploded structure of a water flosser disclosed in an embodiment of the utility model from another perspective;

[0053] Figure 4 It is a schematic diagram of the exploded structure of the one-way valve disclosed in the embodiment of the utility model;

[0054] Figure 5 It is a schematic diagram of the cross-sectional structure of the host disclosed in the embodiment of the utility model;

[0055] Figure 6 It is a schematic diagram of the cross-sectional structure of a water tank disclosed in an embodiment of the utility model.

[0056] Description of main reference numerals

[0057] 100, Oral irrigator; 10, Water tank; 10a, Water outlet hole; 10b, First positioning portion; 10c, Third positioning portion; 20, Check valve; 21, Valve body; 21a, Inlet end; 21b, Outlet end; 22, Valve core; 22a, Main body portion; 22b, Deformation portion; 23, Elastic member; 30, First sealing ring; 30a, Second conical surface; 31, First elastic protrusion; 32, Second elastic protrusion; 33, Third elastic protrusion; 40, Main unit; 40a, Water inlet hole; 40b, Second positioning portion; 40c, Fourth positioning portion; 41, Housing; 42, Water pump; 43, Nozzle; 51, First abutting portion; 52, Second abutting portion; 52a, First conical surface; 61, First component; 62, Second component; 70, Second sealing ring; x, Height direction; y, Opening direction. Detailed implementation manners

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] The present invention discloses an oral irrigator. When the main unit is connected to the water tank through the second abutting portion, the inner peripheral surface of the first sealing ring is squeezed and the outer peripheral surface of the first sealing ring abuts against the inner side wall of the water outlet hole, and / or, one side of the end surface of the first sealing ring facing away from the water outlet end abuts against the main unit, so that the sealing between the water outlet hole and the water inlet hole has a better sealing effect.

[0060] Please refer to Figures 1 to 4 , which is a schematic structural diagram of an oral irrigator 100 provided by an embodiment of the present invention. The oral irrigator 100 includes a water tank 10, a check valve 20, a first sealing ring 30, and a main unit 40.

[0061] The water tank 10 has a water outlet hole 10a. The check valve 20 includes a valve body 21 and a valve core 22, and the valve body 21 is arranged in the water tank 10.

[0062] The valve body 21 has an inlet end 21a and an outlet end 21b. The inlet end 21a is communicated with the inside of the water tank 10, and the outlet end 21b is located at the water outlet hole 10a. The valve core 22 is movably arranged in the valve body 21. The valve core 22 can move relative to the valve body 21 to open or close the outlet end 21b. The first sealing ring 30 is sleeved on the valve core 22, and one side of the first sealing ring 30 abuts against the end surface of the outlet end 21b.

[0063] The main machine 40 is detachably connected to the water tank 10. The main machine 40 has a water inlet hole 40a, and a first abutting portion 51 and a second abutting portion 52 are provided at the water inlet hole 40a. The first abutting portion 51 is used to push the valve core 22 to move relative to the valve body 21 and open the water outlet end 21b when the main machine 40 is connected to the water tank 10, so that the water outlet end 21b is communicated with the water inlet hole 40a. The second abutting portion 52 is used to squeeze the inner peripheral surface of the first sealing ring 30 and make the outer peripheral surface of the first sealing ring 30 abut against the inner side wall of the water outlet hole 10a when the main machine 40 is connected to the water tank 10.

[0064] In this embodiment, the valve body 21 of the one-way valve 20 is arranged in the water tank 10. The water inlet end 21a of the valve body 21 is communicated with the inside of the water tank 10. The water outlet end 21b of the valve body 21 is located at the water outlet hole 10a of the water tank 10, and the valve core 22 of the one-way valve 20 can move relative to the valve body 21 to open or close the water outlet end 21b.

[0065] In this way, when the valve core 22 moves relative to the valve body 21 to open the water outlet end 21b, the water outlet end 21b can be communicated with the water outlet hole 10a, so that the cleaning liquid in the water tank 10 can flow into the valve body 21 through the water inlet end 21a of the valve body 21, flow out from the water outlet end 21b of the valve body 21, and flow out of the water tank 10 through the water outlet hole 10a. Based on this, a first abutting portion 51 is provided at the water inlet hole 40a of the main machine 40, and the main machine 40 is detachably connected to the water tank 10. The first abutting portion 51 can push the valve core 22 to move relative to the valve body 21 and open the water outlet end 21b when the main machine 40 is connected to the water tank 10, so that the water outlet end 21b is communicated with the water inlet hole 40a, and thus the main machine 40 can receive the cleaning liquid in the water tank 10.

[0066] At the same time, a first sealing ring 30 is sleeved on the valve core 22. One side of the first sealing ring 30 abuts against the end face of the water outlet end 21b, and a second abutting portion 52 is provided at the water inlet hole 40a of the main machine 40. The second abutting portion 52 can squeeze the inner peripheral surface of the first sealing ring 30 and make the outer peripheral surface of the first sealing ring 30 abut against the inner side wall of the water outlet hole 10a when the main machine 40 is connected to the water tank 10, so as to seal the water outlet hole 10a and the water inlet hole 40a by using the first sealing ring 30, and the sealing effect is better.

[0067] That is to say, when the main machine 40 of this embodiment is connected to the water tank 10, the first abutting portion 51 pushes the valve core 22 to realize the communication between the water outlet end 21b and the water inlet end 21a. At the same time, the second abutting portion 52 squeezes the first sealing ring 30 to realize the sealing between the water outlet hole 10a and the water inlet hole 40a. The waterway connection and sealing come into effect at the same time, and the assembly operation of the main machine 40 and the water tank 10 is simple and reliable.

[0068] Optionally, the detachable connection method between the water tank 10 and the main machine 40 includes one or more of magnetic connection, snap connection, and button connection.

[0069] In this way, the water tank 10 and the main unit 40 can be detachably connected through one or more different connection methods. The disassembly and assembly between the water tank 10 and the main unit 40 are relatively easy, and the detachable connection method can be selected according to the actual situation. This embodiment does not make specific limitations on this.

[0070] In some embodiments, such as Figure 5 As shown, the main unit 40 includes a housing 41, a water pump 42, and a nozzle 43. The housing 41 is detachably connected to the water tank 10. The housing 41 has a water inlet hole 40a. The water pump 42 is disposed inside the housing 41. The water pump 42 is communicated with the water inlet hole 40a. The nozzle 43 is disposed on the housing 41, and the nozzle 43 is communicated with the water pump 42.

[0071] In this way, when the housing 41 is connected to the water tank 10, the cleaning liquid in the water tank 10 can enter the water pump 42 through the water outlet hole 10a, so that the water pump 42 pressurizes the cleaning liquid to spray the cleaning liquid at a high speed from the nozzle 43 for the user to perform oral cleaning.

[0072] Exemplarily, as Figure 6 As shown, on one side of the end face of the first sealing ring 30 facing away from the water outlet end 21b, there is a first elastic protrusion 31. The first elastic protrusion 31 extends along the circumference of the first sealing ring 30. The first elastic protrusion 31 is used to abut against the main unit 40 when the main unit 40 is connected to the water tank 10.

[0073] In this way, by the first elastic protrusion 31 abutting against the main unit 40, the first elastic protrusion 31 is elastically deformed under the extrusion of the main unit 40 and the end face of the water outlet end 21b, so that the sealing between the main unit 40 and the end face of the water outlet end 21b can be realized, and the first elastic protrusion 31 can increase the contact area between the main unit 40 and the first sealing ring 30, thereby improving the sealing effect.

[0074] Optionally, as Figure 5 and Figure 6 As shown, the second abutting portion 52 is disposed around the circumference of the water inlet hole 40a. The inner circumferential surface of the first sealing ring 30 is provided with a second elastic protrusion 32. The second elastic protrusion 32 extends along the circumference of the first sealing ring 30. The second elastic protrusion 32 is used to abut against the outer circumferential surface of the second abutting portion 52 when the main unit 40 is connected to the water tank 10.

[0075] In this way, on the one hand, by the second abutting portion 52 being disposed around the circumference of the water inlet hole 40a, when the second abutting portion 52 abuts against the inner circumferential surface of the first sealing ring 30 to achieve sealing, the entire water inlet hole 40a can be sealed, and the sealing effect is better.

[0076] On the other hand, the second elastic protrusion 32 abuts against the outer peripheral surface of the second abutting portion 52, and the second elastic protrusion 32 is squeezed by the outer peripheral surface of the second abutting portion 52 and the inner wall of the water outlet 10a to undergo elastic deformation. The second elastic protrusion 32 can increase the contact area between the outer peripheral surface of the second abutting portion 52 and the first sealing ring 30, thereby improving the sealing effect.

[0077] For example, Figure 6 As shown, a third elastic protrusion 33 is provided on the outer circumferential surface of the first sealing ring 30 . The third elastic protrusion 33 is extended along a circumference of the first sealing ring 30 , and the third elastic protrusion 33 abuts against the inner wall of the water outlet hole 10 a .

[0078] In this way, the third elastic protrusion 33 abuts against the inner wall of the water outlet hole 10a, and the third elastic protrusion 33 is squeezed by the inner wall of the water outlet hole 10a and the outer peripheral surface of the second abutting portion 52 to undergo elastic deformation. The third elastic protrusion 33 can increase the contact area between the inner wall of the water outlet hole 10a and the first sealing ring 30, thereby improving the sealing effect.

[0079] In some embodiments, Figure 5 and Figure 6 As shown, the outer peripheral surface of the second abutment portion 52 is configured as a first conical surface 52a, and the width of the end of the second abutment portion 52 away from the first sealing ring 30 is greater than the width of the end of the second abutment portion 52 toward the first sealing ring 30, and the inner peripheral surface of the first sealing ring 30 is configured as a second conical surface 30a matching the first conical surface 52a.

[0080] Among them, the width of the end of the second abutment portion 52 away from the first sealing ring 30 is greater than the width of the end of the second abutment portion 52 toward the first sealing ring 30, which means that the appearance of the second abutment portion 52 is a pillar-shaped or trumpet-shaped with one end larger than the other end, and the first conical surface 52a gradually extends along the direction of the second abutment portion 52 toward the first sealing ring 30 and shrinks close to the central axis of the second abutment portion 52.

[0081] In this way, the first tapered surface 52a and the second tapered surface 30a cooperate to form a matching inclined guide surface, thereby providing a guide for the second abutting portion 52 to squeeze the first sealing ring 30, thereby reducing the difficulty of assembly.

[0082] Optionally, the first sealing ring 30 and the valve core 22 are integrally formed. In this way, by integrally forming the first sealing ring 30 and the valve core 22, the number of parts of the oral irrigator 100 can be reduced, and the assembly process can be simplified. In addition, the first sealing ring 30 and the valve core 22 do not need to be assembled, which can avoid the occurrence of a gap or a virtual position between the first sealing ring 30 and the valve core 22 during assembly, resulting in poor sealing between the first sealer and the valve core 22, thereby improving the waterproof performance.

[0083] In some embodiments, in combination with Figure 2 and Figure 3 , the water tank 10 is provided with a first positioning portion 10b, the first positioning portion 10b is located at the water outlet hole 10a, and the main machine 40 is correspondingly provided with a second positioning portion 40b for the first positioning portion 10b, and the second positioning portion 40b is located at the water inlet hole 40a. The second positioning portion 40b is used to cooperate with the first positioning portion 10b to connect and position the water tank 10 and the main machine 40.

[0084] In this way, by positioning the water tank 10 and the main machine 40 through the cooperation and connection of the first positioning portion 10b and the second positioning portion, the assembly accuracy of the assembly of the water tank 10 and the main machine 40 can be improved. Especially for the precise docking of the water outlet hole 10a of the water tank 10 and the water inlet hole 40a of the main machine 40, the accuracy of the sealed assembly can be improved, thereby improving the sealing effect.

[0085] Exemplarily, one of the first positioning portion 10b and the second positioning portion 40b is a convex portion, and the other is a concave portion. The first positioning portion 10b is arranged around the circumference of the water outlet hole 10a, and the second positioning portion 40b is arranged around the circumference of the water inlet hole 40a.

[0086] In this way, when the first positioning portion 10b is connected in cooperation with the second positioning portion 40b, by using the first positioning portion 10b around the circumference of the water outlet hole 10a and the second positioning portion 40b around the circumference of the water inlet hole 40a, the precise docking of the water outlet hole 10a and the water inlet hole 40a can be improved, so that the centers of the water outlet hole 10a and the water inlet hole 40a are collinear. Moreover, various different structures of the first positioning portion 10b and the second positioning portion 40b are provided and can be selected according to the actual situation. This embodiment does not make specific limitations in this regard.

[0087] Optionally, the outer peripheral surface of the convex portion is configured as a third conical surface, and the width of the end of the convex portion facing away from the concave portion is greater than the width of the end of the convex portion facing the concave portion. The inner side surface of the concave portion is configured as a fourth conical surface matching the third conical surface.

[0088] Among them, the width of the end of the convex portion facing away from the concave portion being greater than the width of the end of the convex portion facing the concave portion means that the outer shape of the convex portion is in the shape of a truncated column or a horn with one end large and one end small. The third conical surface gradually extends and contracts towards the central axis of the convex portion along the direction of the convex portion facing the concave portion.

[0089] In this way, through the cooperation of the third conical surface and the fourth conical surface, a matching inclined guiding surface can be formed, thereby providing guidance for the cooperation and connection of the first positioning portion 10b and the second positioning portion 40b and reducing the assembly difficulty.

[0090] In some embodiments, the water tank 10 is provided with a third positioning portion 10c, and the main unit 40 is correspondingly provided with a fourth positioning portion 40c for the third positioning portion 10c. The fourth positioning portion 40c is used to cooperate with the third positioning portion 10c for connection to position the water tank 10 and the main unit 40.

[0091] In this way, by connecting and positioning the water tank 10 and the main unit 40 through the cooperation of the third positioning portion 10c and the fourth positioning portion, the assembly accuracy of the water tank 10 and the main unit 40 can be improved.

[0092] Optionally, one of the third positioning portion 10c and the fourth positioning portion 40c is a protruding portion, and the other is a recessed portion.

[0093] In this way, by providing the third positioning portion 10c and the fourth positioning portion 40c with various different structures, they can be selected according to the actual situation, and no specific limitation is made in this embodiment.

[0094] Exemplarily, there are multiple third positioning portions 10c, and the multiple third positioning portions 10c are spaced along the height direction x of the water tank 10. There are multiple fourth positioning portions 40c, and the multiple fourth positioning portions 40c are spaced along the height direction x of the main unit 40. The multiple fourth positioning portions 40c are respectively used to cooperate with the multiple third positioning portions 10c for connection to position the water tank 10 and the main unit 40.

[0095] In this way, through the one-to-one cooperation and connection between the multiple third positioning portions 10c and the multiple fourth positioning portions 40c, there are multiple different positions for positioning between the main unit 40 and the water tank 10, and the multiple different positions are located in the height direction x of the water tank 10 and the main unit 40, which can improve the positioning accuracy of the assembly between the main unit 40 and the water tank 10.

[0096] In some embodiments, the oral irrigator 100 further includes a first component 61 and a second component 62. The water tank 10 is provided with the first component 61 at the position corresponding to the third positioning portion 10c, and the main unit 40 is provided with the second component 62 at the position corresponding to the fourth positioning portion 40c. The second component 62 is used to magnetically connect with the first component 61.

[0097] In this way, through the magnetic connection between the first component 61 and the second component 62, the detachable connection between the main unit 40 and the water tank 10 can be realized. Moreover, by using the cooperation and connection between the third positioning portion 10c and the fourth positioning portion 40c, the first component 61 and the second component 62 can be accurately docked, improving the strength of the magnetic connection.

[0098] Optionally, the first component 61 and the second component 62 are magnetic elements with opposite magnetic polarities, or one of the first component 61 and the second component 62 is a metal part, and the other is a magnetic element.

[0099] In this way, by providing a variety of different first components 61 and second components 62, selection can be made according to the actual situation, and this embodiment does not make specific limitations in this regard.

[0100] In some embodiments, such as Figure 4 and Figure 6 As shown, the valve core 22 is movably arranged in the valve body 21 along the opening direction y of the water inlet end 21a. The one-way valve 20 further includes an elastic member 23. Two ends of the elastic member 23 are respectively connected to the valve core 22 and the valve body 21. The elastic member 23 is used to provide an elastic acting force to reset the valve core 22 relative to the valve body 21.

[0101] In this way, by arranging the valve core 22 movably in the valve body 21 along the opening direction y of the water inlet end 21a, the valve core 22 can be movably relative to the valve body 21 along the opening direction y of the water inlet end 21a to open the water outlet end 21b under the push of the first abutting portion 51. At the same time, the elastic member 23 is squeezed, so that the elastic member 23 has an elastic acting force. When the main machine 40 is separated from the water tank 10, the first abutting portion 51 is separated from the valve core 22. The valve core 22 can move relative to the valve body 21 along the opening direction y of the water inlet end 21a under the push of the elastic acting force provided by the elastic member 23 to close the water outlet end 21b, realizing the reset of the valve core 22 relative to the valve body 21.

[0102] Exemplarily, as Figure 4 shown, the valve core 22 includes a main body portion 22a and a deformation portion 22b. The main body portion 22a is arranged on the end face of the water outlet end 21b. The deformation portion 22b is arranged on the main body portion 22a, and the deformation portion 22b extends from the main body portion 22a into the valve body 21. The deformation portion 22b can deform relative to the main body portion 22a to be movably arranged relative to the valve body 21 along the opening direction y of the water inlet end 21a. One end of the deformation portion 22b away from the main body portion 22a is connected to one end of the elastic member 23.

[0103] In this way, when the main machine 40 is connected to the water tank 10, the first abutting portion 51 abuts against the deformation portion 22b. The deformation portion 22b deforms relative to the main body portion 22a under the push of the first abutting portion 51. At this time, the deformation portion 22b can move relative to the valve body 21 along the opening direction y of the water inlet end 21a to open the water outlet end 21b.

[0104] In some embodiments, such as Figure 6 shown, a second sealing ring 70 is sleeved on the water outlet end 21b, and the outer peripheral surface of the second sealing ring 70 is pressed against the inner side wall of the water outlet hole 10a.

[0105] In this way, by pressing the second sealing ring 70 between the water outlet end 21b and the inner side wall of the water outlet hole 10a, the second sealing ring 70 can seal between the water outlet end 21b and the inner side wall of the water outlet hole 10a, realizing the sealing design of the one-way valve 20 and the water outlet hole 10a of the water tank 10.

[0106] An embodiment of the utility model provides a water flosser 100, in which a valve body 21 of a one-way valve 20 is disposed in a water tank 10, a water inlet end 21a of the valve body 21 is connected to the water tank 10, a water outlet end 21b of the valve body 21 is located at a water outlet hole 10a of the water tank 10, and a valve core 22 of the one-way valve 20 can move relative to the valve body 21, thereby opening or closing the water outlet end 21b.

[0107] In this way, when the valve core 22 moves relative to the valve body 21 to open the water outlet end 21b, the water outlet end 21b can be connected to the water outlet hole 10a, so that the cleaning liquid in the water tank 10 can flow into the valve body 21 through the water inlet end 21a of the valve body 21, flow out from the water outlet end 21b of the valve body 21, and flow out of the water tank 10 from the water outlet hole 10a.

[0108] Based on this, a first abutment portion 51 is provided at the water inlet hole 40a of the main unit 40, and the main unit 40 and the water tank 10 are detachably connected. When the main unit 40 and the water tank 10 are connected, the first abutment portion 51 can push the valve core 22 to move relative to the valve body 21 and open the water outlet end 21b, so that the water outlet end 21b is connected to the water inlet hole 40a, so that the main unit 40 can receive the cleaning liquid in the water tank 10.

[0109] At the same time, the valve core 22 is sleeved with a first sealing ring 30, one side of the first sealing ring 30 abuts against the end face of the water outlet end 21b, and a second abutting portion 52 is provided at the water inlet hole 40a of the main unit 40. The second abutting portion 52 can squeeze the inner circumferential surface of the first sealing ring 30 and make the outer circumferential surface of the first sealing ring 30 abut against the inner wall of the water outlet hole 10a when the main unit 40 is connected to the water tank 10, and / or make the side of the first sealing ring 30 facing away from the end face of the water outlet end 21b abut against the main unit 40, so that the first sealing ring 30 is used to seal the water outlet hole 10a and the water inlet hole 40a, and the sealing effect is better.

[0110] That is to say, when the host 40 of this embodiment is connected to the water tank 10, the first abutting portion 51 pushes the valve core 22 to realize the connection between the water outlet end 21b and the water inlet end 21a. At the same time, the second abutting portion 52 squeezes the first sealing ring 30 to realize the sealing of the water outlet hole 10a and the water inlet hole 40a. The water path connection and sealing are effective at the same time, and the assembly operation of the host 40 and the water tank 10 is simple and reliable.

[0111] The above is a detailed introduction to a water flosser disclosed in an embodiment of the utility model. This article uses individual examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the water flosser of the utility model and its core idea; at the same time, for a person skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A water flosser, characterized in that: include: A water tank, wherein the water tank has a water outlet; A one-way valve, the one-way valve comprising a valve body and a valve core, the valve body being arranged in the water tank, the valve body having a water inlet end and a water outlet end, the water inlet end being communicated with the water tank, the water outlet end being located at the water outlet hole, the valve core being movably arranged in the valve body, the valve core being movable relative to the valve body to open or close the water outlet end; a first sealing ring, wherein the first sealing ring is sleeved on the valve core, and one side of the first sealing ring abuts against an end surface of the water outlet end; and A main unit, wherein the main unit is detachably connected to the water tank, the main unit has a water inlet, and a first abutment portion and a second abutment portion are provided at the water inlet. The first abutment portion is used to push the valve core to move relative to the valve body and open the water outlet when the main unit is connected to the water tank, so that the water outlet is connected to the water inlet. The second abutment portion is used to squeeze the inner circumference of the first sealing ring and make the outer circumference of the first sealing ring abut against the inner side wall of the water outlet when the main unit is connected to the water tank, and / or make the side of the end face of the first sealing ring facing away from the water outlet abut against the main unit.

2. The oral rinser according to claim 1, characterized in that: A first elastic protrusion is provided on one side of the end surface of the first sealing ring away from the water outlet end. The first elastic protrusion is extended along a circumference of the first sealing ring. The first elastic protrusion is used to abut against the main unit when the main unit is connected to the water tank.

3. The oral rinser according to claim 1, characterized in that: The second abutment portion is arranged around the water inlet hole, and the inner circumference of the first sealing ring is provided with a second elastic protrusion, and the second elastic protrusion is extended along the circumference of the first sealing ring. The second elastic protrusion is used to abut against the outer circumference of the second abutment portion when the main unit is connected to the water tank.

4. The oral rinser according to claim 1, characterized in that: A third elastic protrusion is provided on the outer peripheral surface of the first sealing ring. The third elastic protrusion is extended along a circumference of the first sealing ring and abuts against the inner side wall of the water outlet hole.

5. The oral rinser according to claim 1, characterized in that: The outer circumferential surface of the second abutment portion is configured as a first conical surface, and the width of the second abutment portion at one end away from the first sealing ring is greater than the width of the second abutment portion at one end facing the first sealing ring, and the inner circumferential surface of the first sealing ring is configured as a second conical surface matching the first conical surface.

6. The oral rinser according to any one of claims 1 to 5, characterized in that: The first sealing ring and the valve core are formed as one body.

7. The oral rinser according to any one of claims 1 to 5, characterized in that: The water tank is provided with a first positioning portion, the first positioning portion is located at the water outlet, the host is provided with a second positioning portion corresponding to the first positioning portion, the second positioning portion is located at the water inlet, and the second positioning portion is used to cooperate with the first positioning portion to position the water tank and the host.

8. The oral rinser according to claim 7, characterized in that: One of the first positioning portion and the second positioning portion is a protruding portion, and the other is a recessed portion. The first positioning portion is arranged around a circle of the water outlet hole, and the second positioning portion is arranged around a circle of the water inlet hole.

9. The oral rinser according to claim 8, characterized in that: The outer peripheral surface of the protrusion is configured as a third conical surface, and the width of the end of the protrusion away from the recessed portion is greater than the width of the end of the protrusion facing the recessed portion, and the inner side surface of the recessed portion is configured as a fourth conical surface matching the third conical surface.

10. The oral rinser according to any one of claims 1 to 5, characterized in that: The detachable connection method between the water tank and the host includes one or more of a magnetic connection, a snap connection, and a button connection.

11. The oral rinser according to any one of claims 1 to 5, characterized in that: The water tank is provided with a third positioning portion, and the host is provided with a fourth positioning portion corresponding to the third positioning portion, and the fourth positioning portion is used to cooperate with the third positioning portion to position the water tank and the host.

12. The oral rinser according to claim 11, characterized in that: One of the third positioning portion and the fourth positioning portion is a protruding portion, and the other is a recessed portion.

13. The oral rinser according to claim 11, characterized in that: There are multiple third positioning parts, and the multiple third positioning parts are arranged at intervals along the height direction of the water tank. There are multiple fourth positioning parts, and the multiple fourth positioning parts are arranged at intervals along the height direction of the main unit. The multiple fourth positioning parts are respectively used to cooperate with the multiple third positioning parts one by one to position the water tank and the main unit.

14. The oral rinser according to claim 11, characterized in that: The water flosser also includes a first component and a second component. The first component is provided at a position of the water tank corresponding to the third positioning portion, and the second component is provided at a position of the host corresponding to the fourth positioning portion. The second component is used for magnetically connecting with the first component.

15. The oral rinser according to claim 14, characterized in that: The first component and the second component are magnetic elements with opposite magnetism, or one of the first component and the second component is a metal element, and the other is a magnetic element.

16. The oral rinser according to any one of claims 1 to 4, characterized in that: The valve core is movably arranged on the valve body along the opening direction of the water inlet end. The one-way valve also includes an elastic member, both ends of which are respectively connected to the valve core and the valve body. The elastic member is used to provide an elastic force to reset the valve core relative to the valve body.

17. The oral rinser according to claim 16, characterized in that: The valve core includes a main body and a deformation part, the main body is arranged on the end surface of the water outlet end, the deformation part is arranged on the main body, and the deformation part extends from the main body into the valve body, the deformation part can be deformed relative to the main body so as to be movably arranged relative to the valve body along the opening direction of the water inlet end, and one end of the deformation part away from the main body is connected to one end of the elastic member.

18. The oral rinser according to any one of claims 1 to 4, characterized in that: The water outlet sleeve is provided with a second sealing ring, and the outer peripheral surface of the second sealing ring is pressed tightly against the inner side wall of the water outlet hole.

19. The oral rinser according to any one of claims 1 to 4, characterized in that: The main unit includes a shell, a water pump and a nozzle. The shell is detachably connected to the water tank. The shell has the water inlet hole. The water pump is arranged in the shell and connected to the water inlet hole. The nozzle is arranged in the shell and connected to the water pump.

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