Water pick

Abstract

The embodiment of the utility model discloses a water pick. The oral irrigator comprises a machine shell, a water pump, a nozzle and a first sealing piece. A mounting hole is formed in the top of the shell. The water pump is arranged in the machine shell and provided with a water outlet structure. One end of the nozzle penetrates through the mounting hole, is detachably inserted into the water outlet structure and is communicated with the water outlet structure. At least part of the first sealing piece is clamped between the water outlet structure and the machine shell so as to seal a gap between the machine shell and the water outlet structure. According to the technical scheme, liquid can be effectively prevented from leaking into the inner space of the machine shell, use safety of products is guaranteed, and reliability is improved.

Description

Technical Field

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

[0002] The water flosser is an auxiliary tool for teeth cleaning, which includes a water pump and a nozzle, and the water pump sprays water to the teeth through the nozzle in the form of a pulsed water column to clean the user's oral cavity.

[0003] In the related art, the nozzle is detachable relative to other parts of the water flosser, so there is inevitably a gap between the nozzle and other parts of the water flosser, which is prone to water leakage, thereby causing machine failure and affecting user experience. Utility Model Content

[0004] An embodiment of the present application provides a water flosser, which is intended to prevent water leakage from the device.

[0005] The tooth flosser provided in the embodiment of the present application comprises:

[0006] A housing having a mounting hole on the top;

[0007] A water pump is disposed in the casing and has a water outlet structure;

[0008] a nozzle, one end of which passes through the mounting hole and is detachably inserted into the water outlet structure and is in communication with the water outlet structure; and

[0009] The first sealing member is at least partially sandwiched between the water outlet structure and the casing to seal the gap between the casing and the water outlet structure.

[0010] Furthermore, the first sealing member is disposed around the outer peripheral side of the water outlet structure, and the first sealing member protrudes toward the top of the casing relative to the water outlet structure and abuts against the casing.

[0011] Furthermore, the water outlet structure is provided with an abutment portion arranged toward the top of the casing, the abutment portion has an abutment surface facing the top of the casing, and at least a portion of the first seal is arranged on the abutment surface to be clamped between the abutment surface and the casing.

[0012] Furthermore, a first rib is provided at one end of the first sealing member facing the top of the housing, and the first rib extends along the circumference of the first sealing member and abuts against the housing.

[0013] Furthermore, the water outlet structure comprises:

[0014] A water outlet section is an integral structure with the pump casing of the water pump; and

[0015] A nozzle fixing member is provided separately from the water outlet section and connected to each other, and the abutment portion is provided at one end of the nozzle fixing member away from the water outlet section;

[0016] Wherein, the first sealing component and the nozzle fixing component are an integrated structure.

[0017] Furthermore, a partition is provided in the housing, the partition divides the internal space of the housing into a first chamber and a second chamber, and is provided with a connecting hole connecting the first chamber and the second chamber, and the mounting hole is connected to the first chamber;

[0018] The water outlet structure includes a water outlet section and a nozzle fixing member, wherein the water outlet section is at least partially located in the second chamber, the nozzle fixing member is at least partially located in the first chamber and is used for the nozzle to be plugged in, and one end of the nozzle fixing member is provided with an abutting portion abutting against the housing, and one end of the nozzle fixing member away from the abutting portion is passed through the communication hole to be connected with the water outlet section;

[0019] The oral irrigator further comprises a second sealing member, which is sandwiched between the nozzle fixing member and the hole wall of the communicating hole and extends along the circumference of the nozzle fixing member.

[0020] Furthermore, at least one second rib is provided on a side of the second sealing member facing the hole wall of the communicating hole, and the second rib extends along the circumference of the second sealing member and abuts against the hole wall of the communicating hole.

[0021] Furthermore, the communicating hole comprises a first hole segment and a second hole segment which are connected along the axial direction thereof, and the first hole segment and the second hole segment have different hole diameters, so as to construct a first sealing table surface at the junction of the first hole segment and the second hole segment;

[0022] The second sealing member is sandwiched between a hole wall of any one of the first hole segment and the second hole segment and the nozzle fixing member, and abuts against the first sealing table surface.

[0023] Furthermore, the first hole segment is closer to the mounting hole than the second hole segment, and the hole diameter of the first hole segment is smaller than that of the second hole segment;

[0024] The second sealing member is sandwiched between the hole wall of the second hole segment and the nozzle fixing member.

[0025] Furthermore, the second sealing component and the nozzle fixing component are an integral structure.

[0026] Furthermore, the first sealing member, the second sealing member and the nozzle fixing member are an integrated structure.

[0027] Furthermore, the dental flosser also includes:

[0028] A sealing connector extending along the axial direction of the nozzle fixing member and connecting the first sealing member and the second sealing member, wherein at least one mounting groove is provided on the outer peripheral side of the nozzle fixing member, and the sealing connector is provided in the mounting groove;

[0029] Wherein, the first sealing member, the second sealing member, the sealing connector and the nozzle fixing member are an integrated structure.

[0030] Furthermore, at least a portion of the water outlet section is located in the communicating hole, one end of the nozzle fixing member away from the abutting portion is sleeved on the water outlet section, and the second sealing member is sleeved on the nozzle fixing member.

[0031] Furthermore, the water outlet section comprises:

[0032] a water outlet joint, located in the communicating hole, connected to the nozzle fixing member, and spaced apart from the hole wall of the communicating hole, wherein at least the second sealing member is located on the outer peripheral side of the water outlet joint; and

[0033] The mounting ring is arranged on the outer peripheral side of the water outlet joint and is located at an end of the water outlet joint away from the mounting hole to support the second sealing member.

[0034] Further, at least a portion of the mounting ring is located in the communicating hole, and a third rib is provided on a side of the mounting ring facing the mounting hole, the third rib extends along the circumference of the mounting ring and abuts against the second sealing member; and / or,

[0035] The mounting ring is further provided with an overlapping flange, which is arranged around the outer peripheral side of the mounting ring and abuts against a surface of the partition away from the first chamber.

[0036] Furthermore, the water outlet structure comprises a water outlet section and a nozzle fixing member connected to each other, and an end of the nozzle fixing member away from the water outlet section is provided with an abutting portion abutting against the housing;

[0037] The nozzle fixing member further comprises a main body and a sleeve portion provided at one end of the main body, the main body is located in the housing, the abutment portion is connected to one end of the main body away from the sleeve portion, and the sleeve portion is sleeved on the water outlet section;

[0038] A second sealing surface is constructed at the junction of the sleeve portion and the main body, and the nozzle fixing member also includes a third sealing member, which extends along the circumference of the water outlet section and blocks the gap between the second sealing surface and the water outlet section.

[0039] Furthermore, the water outlet structure comprises a water outlet section and a nozzle fixing member connected to each other, and an end of the nozzle fixing member away from the water outlet section is provided with an abutting portion abutting against the housing;

[0040] The nozzle fixing member further includes an extension portion, and the extension portion is extended from the abutment portion into the mounting hole;

[0041] One end of the extending portion away from the abutting portion is exposed from the mounting hole, and / or one end of the extending portion away from the abutting portion is flush with the outer surface of the housing.

[0042] Furthermore, the nozzle is provided with a limiting portion, the limiting portion abuts against the extending portion and the housing, and the limiting portion covers a gap between the extending portion and the housing.

[0043] Furthermore, the casing on the outer peripheral side of the mounting hole is raised to construct a mounting boss, and one end of the extension portion away from the abutment portion is flush with the surface of the mounting boss.

[0044] Furthermore, the nozzle is provided with a slot, and a circumferential side of the water outlet structure is provided with an avoidance hole, and the avoidance hole is configured to face the slot directly;

[0045] The dental flosser further comprises a locking assembly and a fourth sealing member, wherein the locking assembly comprises:

[0046] A movable body is disposed in the housing and is movable along the radial direction of the nozzle fixing member, and the movable body is disposed on the outer periphery of the avoidance hole;

[0047] A clamping member connected to the movable body and extending through the avoidance hole into the clamping slot to limit the nozzle, or disengaging from the clamping slot to allow the nozzle to be loosened; and

[0048] A reset member connected to the movable body and used to make the movable body have a tendency to move close to the avoidance hole;

[0049] Among them, the fourth sealing member is connected to the nozzle fixing member or the movable body and extends along the circumference of the avoidance hole. The reset member has a reset state. In the reset state, the clamping member extends into the clamping groove. The fourth sealing member is clamped between the movable body and the water outlet structure to seal the gap between the movable body and the water outlet structure.

[0050] Furthermore, the fourth sealing component and the first sealing component are an integral structure.

[0051] Furthermore, the fourth sealing component and the nozzle fixing component are an integral structure.

[0052] Furthermore, the housing is provided with a through hole, the through hole is connected to the accommodating cavity, and the locking assembly further comprises an operating button, the operating button is connected to the movable body and movably penetrates the through hole;

[0053] The part of the operation button located in the housing is surrounded by a sealing baffle, and the oral irrigator further comprises a fifth sealing member, which is connected to the sealing baffle or the housing and extends along the circumference of the through hole;

[0054] In the reset state, the operation button partially extends out of the through hole, and the fifth sealing member is sandwiched between the sealing baffle and the housing to seal the gap between the sealing baffle and the housing.

[0055] In an embodiment of the present application, the water pump is provided with a water outlet structure, and the nozzle is detachably inserted in the water outlet structure, and one end of the water outlet structure abuts against the top of the casing. By providing a first seal between the water outlet structure and the casing, the technical solution of the embodiment of the present application can block the liquid in the gap between the water outlet structure and the casing from flowing into the internal space of the casing. During the disassembly or use of the nozzle, the liquid leaking from the mounting hole to the inside of the casing must pass through the gap between the above-mentioned water outlet structure and the casing. The present application can effectively seal the gap between the water outlet structure and the casing by providing a first seal, thereby effectively preventing liquid from leaking into the internal space of the casing, ensuring the safety of product use, and improving reliability.

[0056] In addition, since the water outlet structure of the present application is in abutment with the casing, the first seal sandwiched between the water outlet structure and the casing is in an axially compressed state, which can further make the sealing connection between the first seal and the casing and the water outlet structure tighter, further improving the sealing effect and product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] 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 those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 This is a schematic diagram of the overall structure of a water flosser in one embodiment of the present application;

[0059] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the middle water flosser;

[0060] Figure 3 This is a schematic cross-sectional structure diagram of a water flosser in one embodiment of the present application;

[0061] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0062] Figure 5 Another cross-sectional structural schematic diagram of a water flosser in one embodiment of the present application;

[0063] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0064] Figure 7 This is a schematic cross-sectional structure diagram of a nozzle fixing member in one embodiment of the present application;

[0065] Figure 8 This is a schematic diagram of the structure of the water outlet section in one embodiment of the present application;

[0066] Fig. 9 This is a schematic diagram of the overall structure of a nozzle fixing member in one embodiment of the present application;

[0067] Fig.10 for Fig. 9 Schematic diagram of the exploded view of the nozzle fixing parts.

[0068] Reference numerals:

[0069] 1-water flosser; 1a-main unit; 1b-water tank; 10-housing; 10a-accommodating chamber; 10b-first chamber; 10c-second chamber; 11-top shell; 111-mounting hole; 112-mounting boss; 12-partition plate; 121-connecting hole; 1211-first hole section; 1212-second hole section; 1213-first sealing table; 13-through hole; 20-water pump; 201-water outlet structure; 21-pump body; 22-water outlet section; 221-water outlet joint; 222-mounting ring; 2221-third rib; 2222-lap flange; 23-nozzle fixing member; 231-butt portion ;2311-abutting surface;232-extension part;233-main body;2331-avoidance hole;2332-installation groove;234-sleeve part;235-second sealing table;30-sealing connector;31-first sealing member;311-first convex rib;32-second sealing member;321-second convex rib;33-third sealing member;34-fourth sealing member;35-fifth sealing member;40-nozzle;41-limiting part;42-card slot;50-locking assembly;51-movable main body;52-card connector;53-reset member;54-operating button;541-sealing baffle;60-circuit board. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0071] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides a water flosser 1, which includes a main body and a nozzle 40. The nozzle 40 is connected to the main body and has an exposed liquid spraying port to spray cleaning liquid toward the user's teeth.

[0072] The main body includes a host 1a and a water tank 1b. Taking the water flosser 1 placed horizontally as an example, the host 1a and the water tank 1b can be placed up and down or arranged side by side. The nozzle 40 is connected to the host 1a, and the host 1a and the water tank 1b have a connected liquid path so that the liquid in the water tank 1b can flow into the host 1a. The host 1a is suitable for pressurizing the liquid flowing out of the water tank 1b, and pumping the pressurized liquid to the nozzle 40. The nozzle 40 is used to receive the liquid pressurized by the host 1a, and spray the pressurized liquid to the user's teeth to achieve the effect of cleaning the teeth. Of course, in some other structural forms, the water flosser 1 may not be provided with a water tank 1b, and the host 1a is directly connected to an external liquid source, which is not limited here.

[0073] In the related art, the nozzle of some water flossers is detachably connected to the main unit for easy storage or maintenance and replacement. There is inevitably a gap between the detachable nozzle and the main unit, such as the gap at the mounting hole on the main unit for mounting the nozzle. Liquid can easily flow into the main unit from the gap between the nozzle and the main unit, which can easily cause machine failure and affect the user experience.

[0074] In view of this, the oral irrigator 1 proposed in the embodiment of the present application further includes a first sealing member 31 for preventing water leakage from the body. The following explanation is given by taking the oral irrigator 1 as an example in which it is placed horizontally and has a height direction along the vertical direction.

[0075] Please refer to Figure 2 and Figure 3 In some embodiments, the main unit 1a includes a housing 10 and a water pump 20, the water pump 20 is disposed in the housing 10, and the water tank 1b and the nozzle 40 are both connected to the housing 10, wherein the water tank 1b and the water pump 20 are fluidly connected, and the water pump 20 and the nozzle 40 are fluidly connected, so that the liquid flowing into the main unit 1a from the water tank 1b is pumped to the nozzle 40 through the water pump 20, and then sprayed out by the nozzle 40.

[0076] The housing 10 is an appearance component of the oral irrigator 1 and is suitable for being held by the user, so that the user can hold the oral irrigator 1. Optionally, the housing 10 may be a cylindrical structure, and the main structure of the housing 10 may be a plastic material, for example, including but not limited to hard plastic, such as polyethylene, polyester and other thermoplastic plastics suitable for toothbrush manufacturing, or the main structure of the housing 10 may be a metal material, such as aluminum alloy. The embodiment of the present application does not specifically limit the material used for the main structure of the housing 10.

[0077] Please refer to Figure 3 and Figure 4 The housing 10 has a receiving chamber 10a disposed therein. At the top of the housing 10 in the height direction, the housing 10 has a top housing 11, which can be an integral component with other structures of the housing 10. The top housing 11 has a mounting hole 111, the water pump 20 is disposed in the receiving chamber 10a, and one end of the nozzle 40 extends into the receiving chamber 10a through the mounting hole 111 to be connected with the water pump 20.

[0078] The water pump 20 includes a pump body 21 and a water outlet structure 201 connected to each other. The pump body 21 is arranged in the accommodating chamber 10a. The water outlet structure 201 is arranged at the top of the pump body 21 in the height direction and is arranged close to the mounting hole 111 to facilitate connection with the nozzle 40. Optionally, the water outlet structure 201 and the pump body 21 can be an integrated structure to improve the structural integrity and sealing, or the water outlet structure 201 and the pump body 21 can also be a separate structure to facilitate production and assembly. One end of the nozzle 40 is detachably inserted in the water outlet structure 201, and the internal flow channel of the nozzle 40 is connected to the internal space of the water outlet structure 201, so that the liquid can flow through the water outlet structure 201 to the internal flow channel of the nozzle 40.

[0079] An abutment portion 231 is provided at one end of the water outlet structure 201 close to the top shell 11, and the abutment portion 231 is arranged to abut against the top shell 11. It can be understood that there is a gap between the nozzle 40 and the mounting hole 111, and there is inevitably a gap between the abutment portion 231 of the water outlet structure 201 and the top shell 11. It can be understood that the liquid flowing downward along the hole wall of the mounting hole 111 needs to pass through the gap between the abutment portion 231 and the top shell 11. At least part of the first sealing member 31 of the embodiment of the present application is sandwiched between the abutment portion 231 and the top shell 11, thereby, the first sealing member 31 can block the flow passage of the liquid in the gap between the abutment portion 231 and the top shell 11 to the accommodating chamber 10a, thereby sealing the gap between the abutment portion 231 and the top shell 11, and avoiding water leakage from the mounting hole 111 to the accommodating chamber 10a. Among them, the first sealing member 31 can be selected from rubber parts, plastic parts, etc. The first sealing member 31 is substantially annular and is disposed around the abutting portion 231 so as to be able to perform a relatively comprehensive sealing on the circumference of the abutting portion 231 .

[0080] That is to say, the embodiment of the present application sets a first sealing member 31 between the abutting portion 231 and the top shell 11 to block the liquid in the gap between the abutting portion 231 and the top shell 11 from flowing into the internal space of the casing 10. Since the nozzle 40 is detachably inserted into the water outlet structure 201 of the water pump 20 through the mounting hole 111, during the disassembly or use of the nozzle 40, the liquid leaked from the mounting hole 111 to the inside of the casing 10 must pass through the gap between the abutting portion 231 and the top shell 11. The present application can effectively seal the gap between the abutting portion 231 and the top shell 11 by setting the first sealing member 31, thereby effectively preventing liquid from leaking into the internal space of the casing 10, thereby ensuring product safety and improving reliability.

[0081] In addition, since the water outlet structure 201 of the present application is in abutment with the top shell 11, the first sealing member 31 sandwiched between the abutment portion 231 and the top shell 11 is in an axially compressed state, which can further enable the first sealing member 31 to be sealed and connected to the top shell 11 and the abutment portion 231, thereby further improving the sealing effect and product reliability.

[0082] In one embodiment, the first sealing member 31 is disposed around the outer periphery of the abutting portion 231, protrudes toward the top shell 11 relative to the abutting portion 231, and abuts against the top shell 11. In this way, the first sealing member 31 blocks the outer periphery of the gap between the abutting portion 231 and the top shell 11, thereby blocking the further flow of liquid into the accommodating cavity 10a and preventing water leakage of the body.

[0083] Please refer to Figure 4 In another embodiment, the abutment portion 231 has an abutment surface 2311 facing the top shell 11. It can be understood that the abutment portion 231 is a structural portion of the water outlet structure 201 close to one end of the top shell 11, the nozzle 40 is inserted into the water outlet structure 201, and the abutment portion 231 is arranged in an annular shape on the outside of the nozzle 40. Similarly, the abutment surface 2311 is also arranged in an annular shape and extends along the circumference of the abutment portion 231 and faces the top shell 11. In this embodiment, at least a portion of the first sealing member 31 is arranged on the abutment surface 2311 to be sandwiched between the abutment surface 2311 and the top shell 11. It can be understood that the portion of the first sealing member 31 arranged on the abutment surface 2311 is arranged in an annular shape so as to be able to more comprehensively seal the gap between the abutment surface 2311 and the top shell 11. In the embodiment of the present application, the contact area between the first seal 31 and the abutment surface 2311 and the top shell 11 is larger, and because the first seal 31 is clamped between the abutment surface 2311 and the top shell 11, the first seal 31 is directly subjected to the axial pressure of the abutment portion 231, so that the connection between the first seal 31 and the abutment portion 231 and the top shell 11 is tighter and the sealing effect is better.

[0084] Optionally, the first seal 31 can be integrally disposed between the abutting surface 2311 and the top shell 11, or the first seal 31 can be partially disposed on the periphery of the abutting portion 231, with the other portion bent and located between the abutting surface 2311 and the top shell 11. This enables the first seal 31 to be more tightly connected to the abutting portion 231, thereby increasing the contact area between the two.

[0085] Furthermore, the surface of the abutment portion 231 facing the top shell 11 is uneven, forming a stepped abutment surface 2311. Specifically, the inner ring portion of the abutment portion 231 close to the nozzle 40 is higher than the outer ring portion away from the nozzle 40, and there is a height difference between the two. The inner ring portion directly abuts the top shell 11 to provide structural support for the water outlet structure 201, and the outer ring portion is spaced from the top shell 11. At least part of the first sealing member 31 is located between the outer ring portion of the abutment surface 2311 and the top shell 11, and it not only abuts the outer ring portion, but also abuts the surface of the connection between the outer ring portion and the inner ring portion, thereby increasing the contact area between the first sealing member 31 and the abutment portion 231, improving the tightness of the connection, and further improving the sealing effect.

[0086] Please refer to Figure 4 The first seal 31 has a first rib 311 at one end thereof facing the top shell 11. The first rib 311 extends along the circumference of the first seal 31 and abuts against the top shell 11. This can increase the pressure on the first seal 31 at the first rib 311, which is conducive to making the position of the first seal 31 more stable. On the other hand, it can further make the connection between the first seal 31 and the top shell 11 tighter, thereby improving the sealing effect. Optionally, the number of the first rib 311 can be one or more, and the multiple first ribs 311 are arranged from the inside to the outside relative to the center of the first seal 31, which is not limited in the embodiment of the present application.

[0087] In the related art, one end of the water outlet structure 201 close to the top shell 11 stops at the abutment 231, a part of the outer wall surface of the end of the nozzle 40 cooperates with the hole wall of the mounting hole 111, and the other part cooperates with the inner wall of the water outlet structure 201, so that the liquid outside the mounting hole 111 can flow along the gap between the hole wall of the mounting hole 111 and the nozzle 40 to the abutment 231 and the top shell 11, and the liquid in the water outlet structure 201 can flow along the gap between the nozzle 40 and the water outlet structure 201 to the abutment 231 and the top shell 11. Moreover, in this structural form, in the case of errors, the nozzle 40 is installed unstably and is easy to shift.

[0088] like Figure 4As shown, in some structural forms of the present application, the water outlet structure 201 is further provided with an extension portion 232, one end of the extension portion 232 is connected to the abutment portion 231, and the other end is extended into the mounting hole 111. Among them, the end of the extension portion 232 away from the abutment portion 231 is exposed from the outside of the mounting hole 111, or the end of the extension portion 232 away from the abutment portion 231 is flush with the outer surface of the top shell 11. In short, the end of the extension portion 232 away from the abutment portion 231 is not lower than the surface of the top shell 11 outside the mounting hole 111. In the present application, when the nozzle 40 is installed on the main unit 1a, the outer wall surface of the nozzle 40 directly cooperates with the extension portion 232, which can not only reduce the structural complexity when the nozzle 40 is connected to the main unit 1a and improve the stability of the nozzle 40, but also improve the sealing effect and further avoid liquid leakage.

[0089] Furthermore, the housing 10 on the outer peripheral side of the mounting hole 111 is raised to form a mounting boss 112, and the end of the extension portion 232 away from the abutment portion 231 is flush with the surface of the mounting boss 112. In this way, the length of the extension portion 232 can be effectively extended, the contact area between the nozzle 40 and the water outlet structure 201 can be increased, the stability of the nozzle 40 can be improved, and the liquid at the mounting hole 111 can flow away from the mounting hole 111 under the effect of the height difference, avoiding the accumulation of liquid at the mounting hole 111, and further reducing the risk of leakage. Optionally, the mounting boss 112 is smoothly transitioned to the outer surface of other parts of the top shell 11, which is more beautiful and better coordinated.

[0090] Please continue to refer to Figure 4 The nozzle 40 is provided with a limiting portion 41. When the nozzle 40 is inserted into the water outlet structure 201, the limiting portion 41 abuts against the extension portion 232 and the top shell 11 to improve the stability of the nozzle 40. In the embodiment of the present application, the limiting portion 41 is set in a disc shape, and the limiting portion 41 covers the gap between the extension portion 232 and the top shell 11 to reduce the liquid flowing into the gap. In addition, the upper end of the limiting portion 41 is also set in an arc shape to guide the water sliding down the nozzle 40 to flow to the casing 10 around the mounting hole 111 under the guidance of the limiting portion 41, further reducing the risk of water leakage.

[0091] like Figure 3 and Figure 4 As shown, in some embodiments, a partition 12 is further provided in the housing 10, and the partition 12 separates the accommodating chamber 10a into a first chamber 10b and a second chamber 10c, and is provided with a connecting hole 121 connecting the first chamber 10b and the second chamber 10c, and the mounting hole 111 is connected to the first chamber 10b.

[0092] Combination Figure 2 and Figure 5The pump body 21 is arranged in the second chamber 10c, the water outlet structure 201 passes through the connecting hole 121 and is located in the first chamber 10b, and the oral irrigator 1 also includes a locking assembly 50 arranged in the first chamber 10b, and the locking assembly 50 is used to cooperate with the part of the water outlet structure 201 located in the first chamber 10b to achieve a detachable connection with the nozzle 40.

[0093] Please refer to Figures 5 to 7 The water outlet structure 201 includes a water outlet section 22 and a nozzle fixing member 23. The water outlet section 22 and the pump shell of the pump body 21 are an integral structure. The nozzle fixing member 23 is separately arranged from the water outlet section 22 for easy assembly. One end of the nozzle fixing member 23 is penetrated through the connecting hole 121 and connected to the water outlet section 22, and the other end is provided with the above-mentioned abutment portion 231 and the extension portion 232. In addition, the nozzle fixing member 23 also includes a main body 233 located in the first chamber 10b and a sleeve portion 234 for connecting with the water outlet section 22, and the sleeve portion 234 is arranged at one end of the main body 233 away from the abutment portion 231. Thus, the extension portion 232, the main body 233 and the sleeve portion 234 define a disassembly and assembly channel, which is connected to the water outlet section 22, and one end of the nozzle 40 is penetrated in the disassembly and assembly channel. A circumferential side of the main body 233 is provided with an avoidance hole 2331 , and the nozzle 40 is provided with a clamping slot 42 . The avoidance hole 2331 is communicated with the disassembly passage and is directly opposite to the clamping slot 42 .

[0094] Please combine Figure 2 and Figure 6 The locking assembly 50 includes a movable body 51, a clamping member 52 and a reset member 53. The movable body 51 is arranged on the outer periphery of the avoidance hole 2331 and can approach or move away from the avoidance hole 2331 along the radial direction of the nozzle fixing member 23. The clamping member 52 is connected to the movable body 51 and can be movably inserted into the avoidance hole 2331. The movable body 51 is also connected to the reset member 53. The reset member 53 can be a spring, and its two ends are respectively connected to the movable body 51 and the housing 10, so as to make the movable body 51 have a tendency to move close to the avoidance hole 2331. It can be understood that the reset member 53 has a reset state and a deformation state. In the reset state, the clamping member 52 passes through the avoidance hole 2331 and extends into the slot 42 to limit the connection with the nozzle 40. In the deformation state, the clamping member 52 moves with the movable body 51 and is separated from the slot 42 so that the nozzle 40 can be loosened. Therefore, the nozzle 40 can be detachably connected to the nozzle fixing member 23 by controlling the locking assembly 50 .

[0095] Optionally, the water flosser 1 can drive the movable body 51 to move by setting a driving structure in the housing 10, or the locking assembly 50 can also include an operating button 54, the housing 10 is provided with a through hole 13 connected to the first chamber 10b, and the operating button 54 is connected to the movable body 51 and is movably arranged in the through hole 13. When in use, the movable body 51 can be driven to move by operating the operating button 54, and the structure is simple and convenient. Exemplarily, the operating button 54 is arranged at one end of the movable body 51 away from the reset member 53. In the reset state, the operating button 54 extends out of the through hole 13, and by pressing the operating button 54, the movable assembly can be driven to move, so that the reset member 53 enters a deformed state.

[0096] Please refer again Figure 3 and Figure 4 In some embodiments, one end of the nozzle fixing member 23 away from the abutment portion 231, namely the sleeve portion 234, is penetrated at the communication port and connected to the water outlet section 22. The oral irrigator 1 also includes a second sealing member 32, which is sandwiched between the nozzle fixing member 23 and the hole wall of the communication hole 121 and extends along the circumference of the nozzle fixing member 23. The oral irrigator 1 is also provided with control components such as a circuit board 60. The circuit board 60 and the pump body 21 are both located in the second chamber 10c. By providing the second sealing member 32 between the nozzle fixing member 23 and the hole wall of the communication hole 121, the gap there can be sealed, and liquid can be further prevented from entering the second chamber 10c, thereby ensuring the normal use of components such as the circuit board 60 and the pump body 21. Optionally, the second sealing member 32 can be made of rubber or plastic.

[0097] In one embodiment, at least one second rib 321 is provided on one side of the second sealing member 32 facing the hole wall of the connecting hole 121, and the second rib 321 extends along the circumference of the second sealing member 32 and abuts against the hole wall of the connecting hole 121. This not only improves the stability of the second sealing member 32, but also makes the second sealing member 32 and the hole wall of the connecting hole 121 fit more closely, thereby improving the sealing effect. Optionally, the number of the second rib 321 can be one or more, and the plurality of second ribs 321 are arranged at intervals along the height direction, which is not limited in the embodiment of the present application.

[0098] Along the height direction, the aperture of the communication hole 121 may be constant, or, please refer to Figure 4In other embodiments, the communicating hole 121 includes a first hole section 1211 and a second hole section 1212 which are connected along the axial direction thereof, and the first hole section 1211 and the second hole section 1212 have different apertures, so as to construct a first sealing surface 1213 at the junction of the first hole section 1211 and the second hole section 1212. The second sealing member 32 is sandwiched between the hole wall of any one of the first hole section 1211 and the second hole section 1212 and the nozzle fixing member 23, and abuts against the first sealing surface 1213. By providing the first hole section 1211 and the second hole section 1212 to form the first sealing surface 1213, the contact area between the second sealing member 32 and the hole wall of the communicating hole 121 is increased, thereby improving the sealing effect.

[0099] Furthermore, the first hole section 1211 is closer to the mounting hole 111 than the second hole section 1212, and the aperture of the first hole section 1211 is smaller than that of the second hole section 1212, and the second sealing member 32 is sandwiched between the hole wall of the second hole section 1212 and the nozzle fixing member 23. The nozzle fixing member 23 is penetrated through the first hole section 1211 and connected to the water outlet section 22. Since the aperture of the first hole section 1211 is smaller, the outer wall surface of the nozzle fixing member 23 abuts against the hole wall of the first hole section 1211, thereby better constraining the nozzle fixing member 23 and improving the stability of the nozzle fixing member 23. The gap between the nozzle fixing member 23 and the water outlet section 22 is located in the second hole section 1212, and the second sealing member 32 is arranged in the second hole section 1212, so that the gap between the nozzle fixing member 23 and the water outlet section 22 can be sealed in a targeted manner, thereby improving the sealing effect.

[0100] In some structural forms, the sleeve portion 234 of the nozzle fixing member 23 is sleeved on the water outlet section 22, which not only facilitates the insertion of the nozzle fixing member 23, but also improves the sealing effect and prevents liquid leakage.

[0101] Furthermore, in conjunction with reference Figure 5 and Figure 6 The inner diameter of the sleeve portion 234 is larger than the inner diameter of the main body 233, so as to construct a second sealing surface 235 at the junction of the sleeve portion 234 and the main body 233. The nozzle fixing member 23 also includes a third sealing member 33, which extends along the circumference of the water outlet section 22 and blocks the gap between the second sealing surface 235 and the water outlet section 22. By arranging the third sealing member 33 between the second sealing surface 235 and the end of the water outlet section 22, the gap between the second sealing surface 235 and the water outlet section 22 can be sealed, so as to prevent the water flowing out of the water outlet section 22 from leaking out through the gap between the second sealing surface 235 and the water outlet section 22, thereby further improving the structural reliability. Optionally, the third sealing member 33 can be a rubber member or a plastic member, and is arranged in an annular shape.

[0102] Specifically, the water outlet section 22 includes a water outlet joint 221 and a mounting ring 222. The water outlet joint 221 is located in the connecting hole 121. The sleeve portion 234 is sleeved on the water outlet joint 221. The mounting ring 222 is arranged on the outer peripheral side of the water outlet joint 221 and is located at one end of the water outlet joint 221 away from the mounting hole 111. The second sealing member 32 is arranged on the mounting ring 222. The mounting ring 222 can be used to support the second sealing member 32. In this way, on the one hand, the contact area between the water outlet section 22 and the second sealing member 32 can be increased to improve the sealing effect. On the other hand, the second sealing member 32 can be made more stable. The clamping effect of the mounting ring 222 and the first sealing table 1213 can prevent the second sealing member 32 from shifting, thereby improving the structural reliability.

[0103] Alternatively, if Figure 8 As shown, at least part of the mounting ring 222 is located in the connecting hole 121 to make the structure more compact, and a third rib 2221 is provided on the side of the mounting ring 222 facing the mounting hole 111. The third rib 2221 extends along the circumference of the mounting ring 222 and abuts against the second sealing member 32, thereby increasing the contact area with the second sealing member 32 and further improving the sealing effect and the stability of the second sealing member 32. Furthermore, the mounting ring 222 is also provided with a lap flange 2222, which is arranged around the outer circumference of the mounting ring 222, and abuts against the surface of the partition 12 away from the first chamber 10b, so as to cooperate with the partition 12 to limit the position, avoid the displacement of the water outlet section 22, and make the pump body 21, the nozzle 40 connector and other components more stable, thereby making the structural integrity of the water flosser 1 better, reducing noise, and improving the product texture.

[0104] Please refer to Figure 6 In some other embodiments, the oral irrigator 1 further includes a fourth sealing member 34 and a fifth sealing member 35. The fourth sealing member 34 is connected to the nozzle fixing member 23 or the movable body 51, and extends along the circumference of the avoidance hole 2331. In the reset state, the fourth sealing member 34 is sandwiched between the movable body 51 and the water outlet structure 201 to seal the gap between the movable body 51 and the water outlet structure 201, and prevent the liquid from flowing out of the gap between the movable body 51 and the water outlet structure 201. Optionally, the part of the movable body 51 opposite to the avoidance hole 2331 is arranged in an arc-shaped plate shape to fit the outer contour of the nozzle fixing member 23, so that the matching connection between the movable body 51 and the nozzle fixing member 23 and the fourth sealing member 34 is tighter, thereby improving the sealing effect.

[0105] For some embodiments with an operation button 54, a sealing baffle 541 is provided around the portion of the operation button 54 located in the first chamber 10b, and the fifth sealing member 35 is connected to the sealing baffle 541 or the housing 10 and extends along the circumference of the through hole 13. In the reset state, the operation button 54 partially extends out of the through hole 13, and the fifth sealing member 35 is sandwiched between the sealing baffle 541 and the housing 10 to seal the gap between the sealing baffle 541 and the housing 10, thereby preventing liquid from flowing out of the gap between the sealing baffle 541 and the housing 10, and further improving the overall sealing effect and reliability of the oral irrigator 1.

[0106] It can be understood that the fourth sealing member 34 and the fifth sealing member 35 may be rubber members or plastic members, which is not limited in the embodiment of the present application.

[0107] In some embodiments, the first seal 31, the second seal 32 and the fourth seal 34 may be independently provided. Fig. 9 and Fig.10 As shown, in other embodiments, the first seal 31, the second seal 32 and the fourth seal 34 are an integral structure with the nozzle fixing member 23. For example, the first seal 31, the second seal 32 and the fourth seal 34 and the nozzle fixing member 23 can be formed by secondary injection molding, which has good structural integrity and is convenient for processing and assembly.

[0108] Specifically, at least one mounting groove 2332 is provided on the outer peripheral side of the nozzle fixing member 23, each mounting groove 2332 is extended along the axial direction (height direction) of the nozzle fixing member 23, and the two ends of the mounting groove 2332 are respectively located near the abutment portion 231 and the sleeve portion 234. The oral irrigator 1 also includes a sealing connector 30, which extends along the axial direction of the nozzle fixing member 23, is located in the mounting groove 2332, and connects the first sealing member 31, the second sealing member 32, and the fourth sealing member 34. Thus, the first sealing member 31, the second sealing member 32, the fourth sealing member 34 and the sealing connector 30 are formed as a whole, and are an integral structure with the nozzle fixing member 23, so that the first sealing member 31, the second sealing member 32, the fourth sealing member 34 and the sealing connector 30 are tightly and reliably connected to the nozzle fixing member 23, thereby improving the stability of the first sealing member 31, the second sealing member 32, the fourth sealing member 34 and the sealing connector 30, and reducing the number of parts, which is convenient for disassembly and assembly.

[0109] Of course, it can be understood that any at least two of the first seal, the second seal 32, the fourth seal 34 and the sealing connector 30 can be an integrated structure, and any at least one of the first seal, the second seal 32, the fourth seal 34 and the sealing connector 30 can be integrally formed with the nozzle fixing member 23, which will not be repeated here.

[0110] 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.

[0111] 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: A housing having a mounting hole on the top; A water pump is disposed in the casing and has a water outlet structure; A nozzle, one end of which passes through the mounting hole and is detachably inserted into the water outlet structure and is in communication with the water outlet structure; as well as The first sealing member is at least partially sandwiched between the water outlet structure and the top of the housing to seal the gap between the housing and the water outlet structure.

2. The oral rinser according to claim 1, characterized in that: The first sealing member is disposed around the outer peripheral side of the water outlet structure. The first sealing member protrudes toward the top of the housing relative to the water outlet structure and abuts against the housing.

3. The oral rinser according to claim 1, characterized in that: The water outlet structure is provided with an abutment portion arranged toward the top of the casing, the abutment portion has an abutment surface toward the top of the casing, and at least a portion of the first seal is arranged on the abutment surface to be sandwiched between the abutment surface and the casing.

4. The oral rinser according to claim 1, characterized in that: A first convex rib is provided at one end of the first sealing member facing the top of the housing. The first convex rib extends along the circumference of the first sealing member and abuts against the housing.

5. The oral rinser according to claim 1, characterized in that: The water outlet structure comprises: A water outlet section is an integral structure with the pump casing of the water pump; and The nozzle fixing part is separately provided with the water outlet section and connected with each other; Wherein, the first sealing component and the nozzle fixing component are an integrated structure.

6. The oral rinser according to claim 1, characterized in that: A partition is provided in the housing, the partition divides the internal space of the housing into a first chamber and a second chamber, and is provided with a connecting hole connecting the first chamber and the second chamber, and the mounting hole is connected to the first chamber; The water outlet structure includes a water outlet section and a nozzle fixing member, wherein the water outlet section is at least partially located in the second chamber, the nozzle fixing member is at least partially located in the first chamber and is used for the nozzle to be plugged in, and one end of the nozzle fixing member is provided with an abutting portion abutting against the housing, and one end of the nozzle fixing member away from the abutting portion is passed through the communication hole to be connected with the water outlet section; The oral irrigator further comprises a second sealing member, which is sandwiched between the nozzle fixing member and the hole wall of the communicating hole and extends along the circumference of the nozzle fixing member.

7. The oral rinser according to claim 6, characterized in that: At least one second rib is provided on one side of the second sealing member facing the hole wall of the communicating hole. The second rib extends along the circumference of the second sealing member and abuts against the hole wall of the communicating hole.

8. The oral rinser according to claim 6, characterized in that: The communicating hole comprises a first hole section and a second hole section which are connected along the axial direction thereof, wherein the first hole section and the second hole section have different hole diameters, so as to construct a first sealing table surface at the junction of the first hole section and the second hole section; The second sealing member is sandwiched between a hole wall of any one of the first hole segment and the second hole segment and the nozzle fixing member, and abuts against the first sealing table surface.

9. The oral rinser according to claim 8, characterized in that: The first hole segment is closer to the mounting hole than the second hole segment, and the hole diameter of the first hole segment is smaller than that of the second hole segment; The second sealing member is sandwiched between the hole wall of the second hole segment and the nozzle fixing member.

10. The oral rinser according to claim 6, characterized in that: The second sealing member and the nozzle fixing member are an integral structure; and / or, The first sealing member, the second sealing member and the nozzle fixing member are an integrated structure.

11. The oral rinser according to claim 6, characterized in that: Also includes: A sealing connector extending along the axial direction of the nozzle fixing member and connecting the first sealing member and the second sealing member, wherein at least one mounting groove is provided on the outer peripheral side of the nozzle fixing member, and the sealing connector is provided in the mounting groove; Wherein, the first sealing member, the second sealing member, the sealing connector and the nozzle fixing member are an integrated structure.

12. The oral rinser according to claim 6, characterized in that: At least a part of the water outlet section is located in the communicating hole, one end of the nozzle fixing member away from the abutting portion is sleeved on the water outlet section, and the second sealing member is sleeved on the nozzle fixing member.

13. The oral rinser according to claim 6, characterized in that: The water outlet section comprises: a water outlet joint, located in the communicating hole, connected to the nozzle fixing member, and spaced apart from the hole wall of the communicating hole, wherein at least the second sealing member is located on the outer peripheral side of the water outlet joint; and The mounting ring is arranged on the outer peripheral side of the water outlet joint and is located at an end of the water outlet joint away from the mounting hole to support the second sealing member.

14. The oral rinser according to claim 13, characterized in that: At least a portion of the mounting ring is located in the communicating hole, and a third rib is provided on a side of the mounting ring facing the mounting hole, the third rib extends along the circumference of the mounting ring and abuts against the second sealing member; and / or, The mounting ring is further provided with an overlapping flange, which is arranged around the outer peripheral side of the mounting ring and abuts against a surface of the partition away from the first chamber.

15. The oral rinser according to claim 1, characterized in that: The water outlet structure comprises a water outlet section and a nozzle fixing member connected to each other, and an end of the nozzle fixing member away from the water outlet section is provided with an abutting portion abutting against the housing; The nozzle fixing member further comprises a main body and a sleeve portion provided at one end of the main body, the main body is located in the housing, the abutment portion is connected to one end of the main body away from the sleeve portion, and the sleeve portion is sleeved on the water outlet section; A second sealing surface is constructed at the junction of the sleeve portion and the main body, and the nozzle fixing member also includes a third sealing member, which extends along the circumference of the water outlet section and blocks the gap between the second sealing surface and the water outlet section.

16. The oral rinser according to claim 1, characterized in that: The water outlet structure comprises a water outlet section and a nozzle fixing member connected to each other, an end of the nozzle fixing member away from the water outlet section is provided with an abutting portion abutting against the housing, and the nozzle fixing member further comprises an extending portion, and the extending portion is extended from the abutting portion into the mounting hole; One end of the extending portion away from the abutting portion is exposed from the mounting hole, and / or one end of the extending portion away from the abutting portion is flush with the outer surface of the housing.

17. The oral rinser according to claim 16, characterized in that: The nozzle is provided with a limiting portion, the limiting portion abuts against the extending portion and the housing, and the limiting portion covers a gap between the extending portion and the housing; and / or, The housing on the outer peripheral side of the mounting hole is raised to form a mounting boss, and one end of the extension portion away from the abutment portion is flush with the surface of the mounting boss.

18. The oral irrigator according to any one of claims 1 to 17, characterized in that: The nozzle is provided with a slot, and a circumferential side of the water outlet structure is provided with an avoidance hole, and the avoidance hole is configured to face the slot; The dental flosser further comprises a locking assembly and a fourth sealing member, wherein the locking assembly comprises: A movable body is disposed in the housing and can move along the radial direction of the water outlet structure, and the movable body is disposed on the outer periphery of the avoidance hole; A clamping member connected to the movable body and extending through the avoidance hole into the clamping slot to limit the nozzle, or disengaging from the clamping slot to allow the nozzle to be loosened; and A reset member connected to the movable body and used to make the movable body have a tendency to move close to the avoidance hole; Among them, the fourth sealing member is connected to the nozzle fixing member or the movable body and extends along the circumference of the avoidance hole. The reset member has a reset state. In the reset state, the clamping member extends into the clamping groove. The fourth sealing member is clamped between the movable body and the water outlet structure to seal the gap between the movable body and the water outlet structure.

19. The oral rinser according to claim 18, characterized in that: The fourth sealing member and the first sealing member are an integral structure; and / or, The fourth sealing component and the nozzle fixing component are an integral structure.

20. The oral rinser according to claim 18, characterized in that: The housing is provided with a through hole, and the locking assembly further comprises an operation button, which is connected to the movable body and movably penetrates the through hole; The part of the operation button located in the housing is surrounded by a sealing baffle, and the oral irrigator further comprises a fifth sealing member, which is connected to the sealing baffle or the housing and extends along the circumference of the through hole; In the reset state, the operation button partially extends out of the through hole, and the fifth sealing member is sandwiched between the sealing baffle and the housing to seal the gap between the sealing baffle and the housing.

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