Water pick

Abstract

The utility model discloses a water pick. The water pick comprises a body; a nozzle; the top end of the fuselage is connected; 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, and a water inlet is formed in the top end of the oral irrigator and communicated with the water storage space; the end cover can be overturned between an open state and a closed state relative to the water inlet, the water inlet is sealed when the end cover is in the closed state, and the water inlet is opened when the end cover is in the open state; wherein the water inlet is provided with a first side, a second side and a third side in the circumferential direction of the water inlet, the first side is close to the nozzle, the second side and the third side are adjacent to the first side, and in the process that the end cover is switched from the closed state to the open state, the end cover turns over towards one of the first side, the second side and the third side. According to the oral irrigator, when the end cover is in the open state, the end cover and the nozzle are not located on the two opposite sides of the water inlet, and a user can irrigate water into the water inlet conveniently after the end cover is opened.

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] In the related art, a water flosser usually includes a water tank and a body, which are arranged up and down, and the water inlet of the water tank is set on the side of the water tank, or a water injection channel is provided on the body, which is connected to the water tank, and the water inlet of the water injection channel is provided with a cover. When pouring water into the water inlet of the water injection channel, the cover usually needs to be pried open, and a person needs to apply external force to the cover to prevent the cover from shifting and blocking the water inlet. At this time, the water injection equipment needs to avoid the nozzle of the water flosser and the person's hand, and water injection is more inconvenient. Utility Model Content

[0003] The purpose of the present application is to provide a water flosser, in which the end cover and the nozzle are not located on opposite sides of a water inlet when the end cover is in an open state, so that it is convenient for a user to pour water into the water inlet after the end cover is opened.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a water flosser, comprising: a body; a nozzle connected to the top of the body; a water tank connected to the body, the water tank defining a water storage space or jointly defining a water storage space with the body, a water inlet is provided at the top of the water flosser, and the water inlet is connected to the water storage space; an end cover is flippable between an open state and a closed state relative to the water inlet, covering the water inlet when the end cover is in the closed state, and opening the water inlet when the end cover is in the open state; wherein the water inlet has a first side, a second side and a third side in its circumferential direction, the first side is a side close to the nozzle, the second side and the third side are both arranged adjacent to the first side, and in the process of switching the end cover from the closed state to the open state, the end cover flips toward one of the first side, the second side and the third side.

[0005] In some embodiments of the present application, when the end cover is switched from the closed state to the open state, the end cover is flipped toward the nozzle, and abuts against the nozzle when the end cover is in the open state.

[0006] In some embodiments of the present application, the nozzle is provided with a positioning structure, and when the end cover is in an open state, the end cover is connected to the positioning structure so as to fix the end cover and the nozzle.

[0007] In some embodiments of the present application, the end cover is provided with an inserting portion, and the inserting portion is inserted into the water inlet and is tightly fitted and sealed with the inner circumferential surface of the side wall of the water inlet.

[0008] In some embodiments of the present application, a first sealing rib is provided on the outer circumferential surface of the plug-in portion, the first sealing rib extends along the circumference of the plug-in portion, and the first sealing rib is in close contact and sealing with the inner circumferential surface of the side wall of the water inlet.

[0009] In some embodiments of the present application, a portion of the outer circumference of the plug-in portion is spaced apart from the inner circumference of the side wall of the water inlet to jointly define a first ventilation passage, and the first ventilation passage is respectively connected to the atmosphere and the water storage space.

[0010] In some embodiments of the present application, a first limiting rib is provided on the outer peripheral surface of the plug-in portion, and a first limiting portion is provided on the side wall of the water inlet. When the end cover is in the closed state, the first limiting rib is located on the side of the first limiting portion facing the water storage space, and the first limiting portion limits the moving stroke of the first limiting rib in the length direction of the water flosser.

[0011] In some embodiments of the present application, a through hole is provided at the top of the oral irrigator, and in the radial direction of the oral irrigator, the through hole is located between the water inlet and the nozzle; the end cover is provided with a pull-up pin, and the pull-up pin is inserted into the through hole, and the pull-up pin is provided with a second limiting rib, and the side wall of the through hole is provided with a second limiting portion, and the second limiting portion limits the moving stroke of the second limiting rib in the length direction of the oral irrigator.

[0012] In some embodiments of the present application, a second sealing rib is provided on the outer circumferential surface of the lifting pin, and the second sealing rib extends along the circumference of the lifting pin and is sealed with the inner circumferential surface of the side wall of the via hole.

[0013] In some embodiments of the present application, at least a portion of the outer circumference of the lifting pin is spaced apart from the inner circumference of the side wall of the through hole to jointly define a second ventilation passage, and the second ventilation passage is respectively connected to the atmosphere and the water storage space.

[0014] In some embodiments of the present application, the water flosser is provided with a hand-picking groove, and the construction mode of the hand-picking groove is at least one of the following: in the radial direction of the water flosser, the hand-picking groove is provided on the side of the end cover facing away from the nozzle; when the water tank is connected to the bottom end of the body, the end cover and the outer peripheral surface of the body jointly define the hand-picking groove; when the water tank is connected to the side of the body, the end cover and the outer peripheral surface of the water tank jointly define the hand-picking groove.

[0015] In some embodiments of the present application, a first guide curved surface is provided on the side of the end cover facing the nozzle, the first guide curved surface protrudes toward the nozzle and is located above the water inlet; a second guide curved surface is provided on the top of the water flosser, the first guide curved surface and the second guide curved surface are adapted to each other; when the end cover is flipped between the open state and the closed state, the first guide curved surface and the second guide curved surface slide relative to each other.

[0016] In some embodiments of the present application, when the end cover is in the closed state, there is a gap between the first guide curved surface and the second guide curved surface.

[0017] In some embodiments of the present application, the distance between the end cover and the nozzle when the end cover is in the closed state is not less than 7 mm.

[0018] In some embodiments of the present application, the end cover includes: an elastic member, provided with a plug-in portion and a pull-up pin, the plug-in portion being inserted into the water inlet; a support member, connected to a side of the elastic member facing away from the water inlet, for supporting the shape of the elastic member; wherein the support member and the elastic member are integrally formed.

[0019] In some embodiments of the present application, the supporting member is a transparent plastic member, and the elastic member is a transparent soft plastic member.

[0020] In some embodiments of the present application, the elastic member is further provided with an end face sealing portion, and the end face sealing portion is clamped between the end face of the side wall of the water inlet and the support member.

[0021] In some embodiments of the present application, the water tank is connected to the bottom end of the fuselage, the water inlet is provided at the top of the fuselage, and the water inlet is connected to the water storage space through a water inlet channel; or the water tank is connected to the side of the fuselage, the water inlet is provided at the top of the water tank, and the water inlet is connected to the water storage space.

[0022] In some embodiments of the present application, when the water tank is connected to the side of the body, in the length direction of the water flosser, the top surface of the end cover is flush with the top surface of the body, or the top surface of the water tank exceeds the top surface of the body.

[0023] In some embodiments of the present application, when the water tank is connected to the side of the body, in the radial direction of the water flosser, the side of the water tank facing away from the body has a first distance from the nozzle, and the side of the body facing away from the water tank has a second distance from the nozzle, and the first distance is greater than the second distance.

[0024] In some embodiments of the present application, the fuselage and the water tank are detachably connected, one of the fuselage and the water tank is provided with a protrusion and the other is provided with a recess, and the protrusion is inserted into the recess.

[0025] In some embodiments of the present application, the protruding portion is provided with a first magnetic component, and the recessed portion is provided with a second magnetic component, and the first magnetic component and the second magnetic component are magnetically matched.

[0026] In the water flosser of the embodiment of the present application, when the end cover is switched from a closed state to an open state, the end cover does not flip in the direction away from the nozzle, thereby preventing the end cover and the nozzle from being located on opposite sides of the water inlet. In this way, the influence of human hands and the nozzle as a whole on the water injection device is small, the relative position between the water injection device and the water flosser is more flexible, and it is more convenient to inject water into the water flosser, which is convenient for the user to fill with water after the end cover is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 This is one of the structural schematic diagrams of the oral irrigator according to an embodiment of the present application;

[0029] Figure 2 A cross-sectional view of the oral irrigator according to an embodiment of the present application;

[0030] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0031] Figure 4 This is the second structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0032] Figure 5 This is the third structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0033] Figure 6 A cross-sectional view of a water tank and an end cover of a water flosser according to an embodiment of the present application;

[0034] Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle B area;

[0035] Figure 8 This is a schematic structural diagram of the end cover of the oral irrigator according to an embodiment of the present application;

[0036] Fig. 9 This is the fourth structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0037] Fig.10 This is the fifth structural schematic diagram of the oral irrigator according to the embodiment of the present application;

[0038] Fig.11 This is the sixth structural schematic diagram of the oral irrigator according to the embodiment of the present application.

[0039] Description of Figure Numbers:

[0040] Water flosser 1;

[0041] Body 100; first magnetic attraction member 101; recessed portion 102;

[0042] Water tank 200; second magnetic member 201; raised portion 202; water inlet 203; through hole 204; first limit portion 205; second limit portion 206; second guide curved surface 207; water storage space 208;

[0043] Nozzle 300;

[0044] End cover 400 ; elastic member 401 ; support member 402 ; plug-in portion 410 ; first sealing rib 411 ; first limiting rib 413 ; lifting pin 420 ; second sealing rib 421 ; second limiting rib 423 ; finger-picking groove 430 ; first guide curved surface 440 ; end face sealing portion 450 .

[0045] 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

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] The oral irrigator 1 according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0051] like Figure 1-Figure 2 , Figure 4 , Figure 5 As shown, the oral irrigator 1 of the embodiment of the present application includes a nozzle 300 , a body 100 , a water tank 200 and an end cover 400 .

[0052] The nozzle 300 is connected to the top of the body 100, the water tank 200 is connected to the body 100, the water tank 200 defines a water storage space 208, or the water tank 200 and the body 100 together define a water storage space 208. The water storage space 208 may store liquid for cleaning the oral cavity, such as clean water or mouthwash.

[0053] The top of the water flosser 1 is provided with a water inlet 203, which is in communication with the water storage space 208. For example, the water tank 200 is connected to the side of the body 100, or the water tank 200 is connected to the bottom of the body 100. When the water tank 200 is connected to the bottom of the body 100, the top of the body 100 is provided with a water inlet 203, which is in communication with the water storage space 208 through a water inlet channel (not shown in the figure); when the water tank 200 is connected to the bottom of the body 100, the top of the water tank 200 is provided with a water inlet 203, which is in communication with the water storage space 208.

[0054] That is to say, no matter whether the water inlet 203 is arranged on the body 100 or the water tank 200, the water inlet 203 is located at the top of the entire irrigator 1 (except the part other than the nozzle 300). In this case, when water is injected into the irrigator 1, the irrigator 1 still maintains a vertical state (that is, the length direction of the irrigator 1 extends in the up and down direction). The state of the irrigator 1 when water is injected is consistent with the state of the irrigator 1 when in use. There is no need to flip or rotate the irrigator 1, so that the user does not need to excessively turn his wrist, and the use of the irrigator 1 is more convenient.

[0055] In addition, the end cover 400 can be flipped between an open state and a closed state relative to the water inlet 203. When the end cover 400 is in the closed state, the water inlet 203 is sealed, and when the end cover 400 is in the open state, the water inlet 203 is open. The water inlet 203 has a first side, a second side and a third side in its circumferential direction, the first side is a side close to the nozzle 300, and the second side and the third side are both arranged adjacent to the first side. When the end cover 400 is switched from the closed state to the open state, the end cover 400 flips toward one of the first side, the second side and the third side.

[0056] For example, the nozzle 300 and the water inlet 203 are arranged along a preset direction, and the preset direction is perpendicular to the length direction of the water flosser 1. When the end cover 400 is in a closed state, there is a first distance from the nozzle 300 in the preset direction, and when the end cover 400 is in an open state, there is a second distance from the nozzle 300 in the preset direction, and the first distance is not greater than the second distance.

[0057] In this way, when the end cover 400 is in the closed state, the water inlet 203 is sealed, which can prevent the liquid in the water tank 200 from leaking from the water inlet 203 on the one hand, and prevent external dirt and impurities from entering the water tank 200 on the other hand, thereby ensuring the cleanliness of the liquid in the water tank 200, and the oral irrigator 1 is safer for cleaning the oral cavity.

[0058] For example, the end cover 400 can be flipped along a preset direction. When the end cover 400 is switched from a closed state to an open state, the end cover 400 is flipped in the direction of the nozzle 300, and the distance between the end cover 400 and the nozzle 300 in the preset direction is reduced; or the flipping direction of the end cover 400 can be perpendicular to the preset direction and the length direction of the oral irrigator 1. When the end cover 400 is switched from a closed state to an open state, the distance between the end cover 400 and the nozzle 300 in the preset direction remains unchanged; or, the flipping direction of the end cover 400 can be an angle greater than 0° and less than 90° with the preset direction, at which time the distance between the end cover 400 and the nozzle 300 in the preset direction also gradually decreases.

[0059] That is to say, the end cover 400 does not flip in the direction away from the nozzle 300, avoiding the end cover 400 and the nozzle 300 being located on opposite sides of the water inlet 203. In this way, the human hand and the nozzle 300 as a whole have little impact on the water injection device, the relative position between the water injection device and the water flosser 1 is more flexible, and it is more convenient to inject water into the water flosser 1, which is convenient for the user to fill water after the end cover 400 is opened.

[0060] Specifically, when the end cover 400 is switched from the closed state to the open state, the end cover 400 is flipped toward the direction of the nozzle 300. In this way, the free end of the end cover 400 and the nozzle 300 are roughly in the same position, so the water injection device avoids the nozzle 300 while also avoiding the end cover 400 to a certain extent, and the human hand and the nozzle 300 are less obstructive to the water injection device, the relative position between the water flosser 1 and the water injection device is more flexible, and it is more convenient to inject water into the water flosser 1, which is convenient for the user to pour water after the end cover 400 is opened.

[0061] The nozzle 300 is provided with a positioning structure, which is connected to the positioning structure when the end cover 400 is in an open state, so that the end cover 400 and the nozzle 300 are fixed. For example, the outer peripheral surface of the nozzle 300 can be provided with a positioning protrusion, and the end cover 400 is positioned between the protrusion and the body 100, or the end cover 400 is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove.

[0062] By setting a positioning structure, when the end cover 400 is in an open state, the end cover 400 can be positioned with the nozzle 300, and the user does not need to continuously press the end cover 400 to maintain the position of the end cover 400. When replenishing liquid in the water tank 200, the operation is more convenient and the efficiency of replenishing liquid is higher.

[0063] like Figure 7 and Figure 8 As shown, the end cover 400 is provided with a plug-in portion 410, which is inserted into the water inlet 203 and is sealed with the inner circumferential surface of the side wall of the water inlet 203, wherein the plug-in portion 410 is gradually pulled out from the water inlet 203 during the process of the end cover 400 being flipped from a closed state to an open state.

[0064] In this way, the plug-in part 410 can seal the water inlet 203, which can prevent the liquid in the water tank 200 from leaking from the water inlet 203 on the one hand, and prevent external dirt and impurities from entering the water tank 200 on the other hand, thereby ensuring the cleanliness of the liquid in the water tank 200, and the oral irrigator 1 is safer for cleaning the oral cavity.

[0065] like Figure 7 and Figure 8As shown, the outer circumferential surface of the plug-in portion 410 is provided with a first sealing rib 411, and the first sealing rib 411 extends along the circumference of the plug-in portion 410, and the first sealing rib 411 is sealed against the inner surface of the side wall of the water inlet 203, wherein the first sealing rib 411 may be one or more, and when there are multiple first sealing ribs 411, the multiple first sealing ribs 411 are arranged at intervals along the axial direction of the water inlet 203.

[0066] In this way, the first sealing rib 411 can fill the gap between the outer peripheral surface of the plug-in part 410 and the inner surface of the side wall of the water inlet 203, thereby achieving a better sealing effect and effectively preventing liquid from leaking from the water inlet 203 and dirt and impurities from entering the water tank 200 from the water inlet 203.

[0067] A portion of the outer circumferential surface of the plug-in portion 410 is spaced apart from the inner surface of the side wall of the water inlet 203 to jointly define a first ventilation passage, which is communicated with the atmosphere and the water storage space 208 respectively.

[0068] When the liquid in the water storage space 208 gradually decreases, the water storage space 208 will gradually become a negative pressure state. At this time, the liquid in the water storage space 208 needs to overcome the negative pressure to flow toward the nozzle 300 and has difficulty in flowing. By setting a first ventilation airway to connect the atmosphere with the water storage space 208, the atmosphere can be replenished into the water storage space 208 to balance the internal and external air pressures of the water tank 200, avoid difficulties in drawing water, and ensure the outflow efficiency of the liquid in the water storage space 208.

[0069] like Figure 7 and Figure 8 As shown, the outer peripheral surface of the above-mentioned plug-in portion 410 is provided with a first limiting rib 413, and the side wall of the water inlet 203 is provided with a first limiting portion 205. When the end cover 400 is in a closed state, the first limiting rib 413 is located on the side of the first limiting portion 205 facing the water storage space 208, and the first limiting portion 205 limits the moving stroke of the first limiting rib 413 in the length direction of the water flosser 1.

[0070] Through the cooperation of the first limiting portion 205 and the first limiting rib 413, the axial position of the plug-in portion 410 at the water inlet 203 can be limited. The plug-in portion 410 needs to overcome the force between the first limiting rib 413 and the first limiting portion 205 to be able to separate from the water inlet 203. In the absence of human factors, the relative position between the plug-in portion 410 and the water inlet 203 is reliable, which can prevent the plug-in portion 410 from accidentally separating from the water inlet 203.

[0071] like Figure 5-Figure 7As shown, the top of the oral irrigator 1 is provided with a through hole 204. For example, when the water tank 200 is connected to the bottom of the body 100, the top of the body 100 is provided with a through hole 204; when the water tank 200 is connected to the side of the body 100, the top of the body 100 or the top of the water tank 200 is provided with a through hole 204. In the radial direction of the oral irrigator 1, the through hole 204 is located between the water inlet 203 and the nozzle 300, the end cover 400 is provided with a pull-up nail 420, the pull-up nail 420 is inserted into the through hole 204, the pull-up nail 420 is provided with a second limiting rib 423, and the side wall of the through hole 204 is provided with a second limiting portion 206, and the second limiting portion 206 limits the movement stroke of the second limiting rib 423 in the length direction of the oral irrigator 1.

[0072] When the end cover 400 switches from an open state to a closed state, the plug-in portion 410 is pulled out from the water inlet 203 and flipped in the direction of the nozzle 300. During this process, the lifting nail 420 gradually moves upward. When the end cover 400 stops at the nozzle 300, the second limiting rib 423 and the second limiting portion 206 can stop each other to prevent the lifting nail 420 from being separated from the through hole 204. In this way, when the end cover 400 switches from a closed state to an open state, the relative position between the lifting nail 420 and the water tank 200 and the body 100 is determined, the plug-in portion 410 is more accurately inserted into the water inlet 203, and the end cover 400 is more convenient to switch between the open state and the closed state.

[0073] Since the through hole 204 is located between the water inlet 203 and the nozzle 300, the size of the lifting nail 420 is smaller than the size of the plug-in portion 410, so it can be prevented that the lifting nail 420 is separated from the through hole 204 when the end cover 400 is in the open state. In particular, when the end cover 400 is in the closed state, the size of the lifting nail 420 can be larger than the size of the plug-in portion 410 in the length direction of the oral irrigator 1, which can further prevent the lifting nail 420 from being separated from the through hole 204 when the end cover 400 is in the open state.

[0074] like Figure 7 and Figure 8 As shown, the outer circumferential surface of the above-mentioned lifting pin 420 is provided with a second sealing rib 421, and the second sealing rib 421 extends along the circumference of the lifting pin 420 and is sealed with the inner circumferential surface of the side wall of the through hole 204, wherein the second sealing rib 421 can be one or more, and when there are multiple second sealing ribs 421, the multiple second sealing ribs 421 are arranged at intervals along the axial direction of the through hole 204.

[0075] In this way, the second sealing rib 421 can fill the gap between the outer peripheral surface of the pull-up pin 420 and the inner surface of the side wall of the through hole 204, and the sealing effect is better, which effectively prevents liquid from leaking from the through hole 204 and dirty impurities from entering the water tank 200 from the through hole 204.

[0076] At least a portion of the outer circumferential surface of the lifting pin 420 is spaced apart from the inner surface of the side wall of the through hole 204 to jointly define a second ventilation passage, which is communicated with the atmosphere and the water storage space 208 respectively.

[0077] When the liquid in the water storage space 208 gradually decreases, the water storage space 208 will gradually become a negative pressure state. At this time, the liquid in the water storage space 208 needs to overcome the negative pressure to flow toward the nozzle 300 and has difficulty in flowing. By setting a second ventilation airway to connect the atmosphere with the water storage space 208, the atmosphere can be replenished into the water storage space 208 to balance the internal and external air pressures of the water tank 200, avoid difficulties in drawing water, and ensure the outflow efficiency of the liquid in the water storage space 208.

[0078] like Figure 1-Figure 2 , Figure 6 and Figure 7 As shown, the above-mentioned oral irrigator 1 is provided with a hand-picking groove 430, and the construction method of the hand-picking groove 430 is at least one of the following:

[0079] First, in the radial direction of the oral irrigator 1, a hand-gripping groove 430 is provided on the side of the end cover 400 facing away from the nozzle 300. In this case, the hand-gripping groove 430 can be defined only by the end cover 400.

[0080] Second, when the water tank 200 is connected to the bottom end of the body 100, the end cover 400 and the outer peripheral surface of the body 100 jointly define a hand-gripping groove 430;

[0081] The third type is that when the water tank 200 is connected to the side of the body 100 , the end cover 400 and the outer peripheral surface of the water tank 200 jointly define a hand-gripping groove 430 .

[0082] By providing the finger picking groove 430, the user can insert his finger into the finger picking groove 430 to exert force on the end cover 400 to flip the end cover 400, which is convenient for opening the end cover 400, thereby improving the convenience of using the oral irrigator 1 and providing a better user experience.

[0083] like Figure 5 , Figure 7 and Figure 8As shown, the end cap 400 is provided with a first guide curved surface 440 on the side facing the nozzle 300, and the first guide curved surface 440 protrudes toward the direction of the nozzle 300 and is located above the water inlet 203. The top of the water flosser 1 is provided with a second guide curved surface 207. For example, when the water tank 200 is connected to the bottom end of the body 100, the body 100 is provided with a second guide curved surface 207; when the water tank 200 is connected to the side of the body 100, the body 100 or the water tank 200 is provided with a second guide curved surface 207, and the first guide curved surface 440 and the second guide curved surface 207 are adapted. When the end cap 400 is flipped between the open state and the closed state, the first guide curved surface 440 and the second guide curved surface 207 slide relative to each other.

[0084] In this way, when the end cover 400 switches between the open state and the closed state, the first guide curved surface 440 and the second guide curved surface 207 can cooperate in guidance, and the end cover 400 will not interfere with the fuselage 100 and the water tank 200 during the flipping process, and the flipping of the end cover 400 is smoother.

[0085] Furthermore, when the end cover 400 is in the closed state, there is a gap between the first guide curved surface 440 and the second guide curved surface 207. In this way, a movable space is reserved between the first guide curved surface 440 and the second guide curved surface 207. When the end cover 400 is switched from the closed state to the open state, the first guide curved surface 440 can be displaced in the above space, and the movable range of the end cover 400 is also increased, thereby reducing the influence of the water tank 200 or the fuselage 100 on the movement of the end cover 400, and the flipping of the end cover 400 is smoother.

[0086] like Figure 4 As shown, the distance L between the end cap 400 and the nozzle 300 when the end cap 400 is in a closed state is not less than 7 mm. For example, the distance between the end cap 400 and the nozzle 300 can be 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, or 15 mm.

[0087] When the end cap 400 is flipped into place, the user's fingers may press the end cap 400 to keep the end cap 400 in the current position. Since the distance between the end cap 400 and the nozzle 300 is not less than 7 mm, the distance between the water inlet 203 and the nozzle 300 will not be less than 7 mm. There is enough space between the water inlet 203 and the nozzle 300 for the fingers to place, so as to avoid the fingers blocking the water inlet 203, reduce the influence of the fingers on the water inlet 203, and improve the efficiency of replenishing liquid in the water tank 200.

[0088] like Figure 7 and Figure 8 As shown, the end cap 400 includes an elastic member 401 and a support member 402. The elastic member 401 is provided with an inserting portion 410 and a lifting nail 420. The inserting portion 410 is inserted into the water inlet 203. The support member 402 is connected to the side of the elastic member 401 facing away from the water inlet 203, and is used to support the elastic shape; wherein the support member 402 and the elastic member 401 are integrally formed.

[0089] That is to say, the elastic member 401 can be elastically deformed, so the plug-in portion 410 and the lifting nail 420 can be elastically deformed, which makes it easy to insert the plug-in portion 410 into the water inlet 203, and to insert the lifting nail 420 into the through hole 204. In addition, the plug-in portion 410 and the water inlet 203 can be interference fit, the plug-in portion 410 elastically deforms to adapt to the shape of the water inlet 203, and the plug-in portion 410 has a better sealing effect on the water inlet 203. Moreover, the lifting nail 420 and the through hole 204 can be interference fit, the lifting nail 420 elastically deforms to adapt to the shape of the through hole 204, and the lifting nail 420 has a better sealing effect on the through hole 204.

[0090] The hardness of the support member 402 is greater than that of the elastic member 401 . The support member 402 can be used to abut against the side wall of the water inlet 203 to prevent the end cover 400 from being excessively inserted into the water inlet 203 , which is also beneficial to ensuring the overall shape of the end cover 400 .

[0091] Furthermore, the support member 402 is a transparent plastic member, such as polypropylene (PP), polyvinyl chloride (PVC), polyethylene glycolterephthalate (PET) and polycarbonate (PC), and the elastic member 401 is a transparent soft plastic member, such as transparent silicone.

[0092] In this way, on the one hand, the support member 402 can have sufficient hardness to maintain the shape of the end cover 400, and is conducive to abutting against the side wall of the water inlet 203, thereby ensuring the relative position between the end cover 400 and the water inlet 203. The elastic member 401 has sufficient elasticity, and the elastic member 401 can undergo elastic deformation to achieve the closure of the water inlet 203 by the elastic member 401. On the other hand, since the support member 402 and the elastic member 401 are both transparent, the end cover 400 is also transparent, and the user can observe the liquid level in the water tank 200 through the end cover 400, which is convenient for the user to replenish the liquid in the water tank 200 in time, thereby ensuring the endurance of the water flosser 1 and reducing liquid waste.

[0093] like Figure 7As shown, the elastic member 401 is further provided with an end face sealing portion 450 , which is clamped between the end face of the water inlet 203 and the support member 402 , that is, the end face sealing portion 450 is tightly attached to the end face of the side wall of the water inlet 203 under the pressure of the support member 402 .

[0094] In this way, the elastic member 401 is also sealed with the end face of the water inlet 203, the contact area between the elastic member 401 and the side wall of the water inlet 203 is larger, and the elastic member 401 contacts different areas of the side wall of the water inlet 203 (i.e., the inner circumferential surface of the side wall of the water inlet 203 and the end face of the side wall), forming multiple seals with better sealing effect, which greatly reduces the probability of liquid in the water tank 200 leaking from the water inlet 203.

[0095] like Figure 1 and Figure 2 As shown, when the water tank 200 is connected to the side of the body 100, the top surface of the end cover 400 is flush with the top surface of the body 100 in the length direction of the water flosser 1. In this way, a smooth transition can be achieved between the top surface of the end cover 400 and the top surface of the body 100, making the surface of the water flosser 1 smoother, and no step structure will be formed between the top surface of the end cover 400 and the top surface of the body 100. On the one hand, the grip feel of the water flosser 1 is optimized, making the water flosser 1 fit more closely to the palm and avoiding the palm from being suspended in the air. On the other hand, the connection between the top surface of the end cover 400 and the top surface of the body 100 is easy to clean, and is not easy to hide dirt and accumulate dust, which is conducive to the cleaning of the water flosser 1.

[0096] In other embodiments of the present application, when the water tank 200 is connected to the side of the body 100, the top surface of the water tank 200 exceeds the top surface of the body 100 in the length direction of the oral irrigator 1. In this way, the liquid sprayed from the nozzle 300 will not flow into the water tank 200 when flowing along the body 100, thereby preventing the liquid in the water tank 200 from being contaminated by the liquid that has been rinsed through the oral cavity, which is conducive to ensuring the cleanliness of the liquid in the water tank 200 and improving the safety of the oral irrigator 1.

[0097] like Figure 4 As shown, when the water tank 200 is connected to the side of the body 100, in the radial direction of the water flosser 1, the side of the water tank 200 facing away from the body 100 has a first distance from the nozzle 300, and the side of the body 100 facing away from the water tank 200 has a second distance from the nozzle 300, and the first distance is greater than the second distance.

[0098] In this way, during the use of the oral irrigator 1, since the distance between the nozzle 300 and the side of the body 100 is smaller, in order to facilitate the nozzle 300 to extend into the oral cavity, the user usually tilts the oral irrigator 1 toward the body 100, causing the water tank 200 to be located above the body 100 in the vertical direction. Under the action of gravity, the liquid sprayed from the nozzle 300 is not easy to flow into the water tank 200, thereby preventing the liquid in the water tank 200 from being contaminated by the liquid that has been used to rinse the oral cavity. This is beneficial to ensuring the cleanliness of the liquid in the water tank 200 and improving the safety of the oral irrigator 1. In addition, the liquid in the water tank 200 is more easily pumped to the nozzle 300 under the action of gravity, thereby reducing energy consumption and extending the service life of the oral irrigator 1.

[0099] like Figure 6 , Figure 9-11 As shown, the fuselage 100 and the water tank 200 are detachably connected, one of the fuselage 100 and the water tank 200 is provided with a protrusion 202 and the other is provided with a recess 102 , and the protrusion 202 is inserted into the recess 102 .

[0100] In this way, when the side of the body 100 is connected to the water tank 200, when the end cover 400 is flipped toward the direction of the nozzle 300, the end cover 400 is subjected to a downward component force, and when the component force is transmitted to the water tank 200 or the body 100, the water tank 200 and the body 100 may be misaligned in the length direction of the water flosser 1.

[0101] By providing the raised portion 202 and the recessed portion 102, the side walls of the raised portion 202 and the recessed portion 102 abut against each other, which can play a positioning and supporting role in the length direction of the oral irrigator 1, thereby avoiding the water tank 200 and the body 100 from being misaligned in the length direction of the oral irrigator 1, and ensuring the relative position stability of the water tank 200 and the body 100 in the length direction of the oral irrigator 1.

[0102] Furthermore, if Figure 3 As shown, the protrusion 202 is provided with a first magnetic member 101, the recessed portion 102 is provided with a second magnetic member 201, and the first magnetic member 101 and the second magnetic member 201 are magnetically matched. Through the cooperation of the first magnetic member 101 and the second magnetic member 201, the fuselage 100 and the water tank 200 can be connected to avoid accidental separation of the fuselage 100 and the water tank 200, and during the assembly process of the fuselage 100 and the water tank 200, the magnetic attraction between the first magnetic member 101 and the second magnetic member 201 can play a guiding role, and the alignment between the fuselage 100 and the water tank 200 is more convenient and accurate, thereby improving the assembly efficiency.

[0103] 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.

[0104] 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: body; a nozzle connected to the top end of the fuselage; 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, a water inlet is provided at the top of the water flosser, and the water inlet is communicated with the water storage space; An end cover is flippable between an open state and a closed state relative to the water inlet, and covers the water inlet when the end cover is in the closed state, and opens the water inlet when the end cover is in the open state; Wherein, the water inlet has a first side, a second side and a third side in its circumferential direction, the first side is a side close to the nozzle, the second side and the third side are both arranged adjacent to the first side, and in the process of switching the end cover from the closed state to the open state, the end cover flips toward one of the first side, the second side and the third side.

2. The oral rinser according to claim 1, characterized in that: When the end cover is switched from the closed state to the open state, the end cover flips toward the nozzle, and abuts against the nozzle when the end cover is in the open state.

3. The oral rinser according to claim 1, characterized in that: The nozzle is provided with a positioning structure, which is connected to the positioning structure when the end cover is in an open state, so that the end cover and the nozzle are fixed.

4. The oral rinser according to claim 1, characterized in that: The end cover is provided with an inserting portion, which is inserted into the water inlet and is tightly fitted and sealed with the inner circumferential surface of the side wall of the water inlet.

5. The oral rinser according to claim 4, characterized in that: A first sealing rib is provided on the outer circumferential surface of the plug-in portion. The first sealing rib extends along the circumferential direction of the plug-in portion. The first sealing rib is in close contact and sealed with the inner circumferential surface of the side wall of the water inlet.

6. The oral rinser according to claim 4, characterized in that: A portion of the outer circumferential surface of the plug-in portion is spaced apart from the inner circumferential surface of the side wall of the water inlet to jointly define a first ventilation passage, which is communicated with the atmosphere and the water storage space respectively.

7. The oral rinser according to claim 4, characterized in that: A first limiting rib is provided on the outer circumferential surface of the plug-in portion, and a first limiting portion is provided on the side wall of the water inlet. When the end cover is in the closed state, the first limiting rib is located on the side of the first limiting portion facing the water storage space, and the first limiting portion limits the moving stroke of the first limiting rib in the length direction of the water flosser.

8. The oral irrigator according to claim 1, characterized in that: A through hole is provided at the top of the water flosser, and in the radial direction of the water flosser, the through hole is located between the water inlet and the nozzle; The end cover is provided with a lifting pin, the lifting pin is inserted into the through hole, the lifting pin is provided with a second limiting rib, the side wall of the through hole is provided with a second limiting portion, and the second limiting portion limits the movement stroke of the second limiting rib in the length direction of the oral flushing device.

9. The oral rinser according to claim 8, characterized in that: A second sealing rib is provided on the outer circumferential surface of the lifting pin. The second sealing rib extends along the circumferential direction of the lifting pin and is sealed and fitted with the inner circumferential surface of the side wall of the through hole.

10. The oral rinser according to claim 8, characterized in that: At least a portion of the outer circumference of the lifting pin is spaced apart from the inner circumference of the side wall of the through hole to jointly define a second ventilation passage, which is communicated with the atmosphere and the water storage space respectively.

11. The oral rinser according to claim 1, characterized in that: The water flosser is provided with a hand-gripping groove, and the hand-gripping groove is constructed in at least one of the following ways: In the radial direction of the water flosser, the hand-gripping groove is provided on the side of the end cover facing away from the nozzle; When the water tank is connected to the bottom end of the fuselage, the end cover and the outer peripheral surface of the fuselage jointly define the hand-gripping groove; When the water tank is connected to the side of the fuselage, the end cover and the outer peripheral surface of the water tank jointly define the hand-gripping groove.

12. The oral rinser according to claim 1, characterized in that: A first guide curved surface is provided on one side of the end cover facing the nozzle, and the first guide curved surface protrudes toward the nozzle and is located above the water inlet; A second guide curved surface is provided at the top of the oral flushing device, and the first guide curved surface and the second guide curved surface are adapted to each other, and when the end cover is flipped between the open state and the closed state, the first guide curved surface and the second guide curved surface slide relative to each other.

13. The oral rinser according to claim 12, characterized in that: When the end cover is in the closed state, there is a gap between the first guide curved surface and the second guide curved surface.

14. The oral rinser according to claim 1, characterized in that: When the end cap is in the closed state, the distance between the end cap and the nozzle is not less than 7 mm.

15. The oral rinser according to claim 1, characterized in that: The end cap comprises: An elastic member, provided with an inserting portion and a lifting nail, wherein the inserting portion is inserted into the water inlet; A support member connected to a side of the elastic member facing away from the water inlet and used to support the shape of the elastic member; Wherein, the support member and the elastic member are integrally formed.

16. The oral rinser according to claim 15, characterized in that: The supporting member is a transparent plastic member, and the elastic member is a transparent soft plastic member.

17. The oral rinser according to claim 15, characterized in that: The elastic member is further provided with an end face sealing portion, and the end face sealing portion is clamped between the end face of the side wall of the water inlet and the support member.

18. The oral rinser according to claim 1, characterized in that: The water tank is connected to the bottom end of the fuselage, the top end of the fuselage is provided with the water inlet, and the water inlet is connected to the water storage space through a water inlet channel; or The water tank is connected to the side of the fuselage, and a water inlet is arranged at the top of the water tank, and the water inlet is communicated with the water storage space.

19. The oral rinser according to claim 18, characterized in that: When the water tank is connected to the side of the body, in the length direction of the water flosser, the top surface of the end cover is flush with the top surface of the body, or the top surface of the water tank exceeds the top surface of the body.

20. The oral rinser according to claim 18, characterized in that: When the water tank is connected to the side of the body, in the radial direction of the water flosser, the side of the water tank facing away from the body has a first distance from the nozzle, and the side of the body facing away from the water tank has a second distance from the nozzle, and the first distance is greater than the second distance.

21. The oral rinser according to claim 1, characterized in that: The fuselage and the water tank are detachably connected, one of the fuselage 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.

22. The oral rinser according to claim 21, characterized in that: The protruding portion is provided with a first magnetic attraction component, and the recessed portion is provided with a second magnetic attraction component, and the first magnetic attraction component and the second magnetic attraction component are magnetically matched.

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