CN217853424U - Tooth flushing device - Google Patents

Abstract

The application provides a tooth flushing device, which comprises a tooth flushing device main body, a first water tank, a second water tank and a limiting component; the tooth flushing device main body is provided with a first box body, and the first box body is provided with a first limiting part; the second water tank is sleeved on the periphery of the first tank body and forms an accommodating cavity with the first tank body in a surrounding manner; the second water tank is configured to be axially movable relative to the first tank body to switch between a storage state and an expansion state so as to adjust the volume of the accommodating cavity; the limiting assembly is arranged on the tooth flushing device main body and/or the first box body; the second water tank is limited on the limiting component in the storage state and is limited on the first limiting part in the expansion state. The application provides a towards tooth ware can the holding more water yield, need not frequent water injection, and convenient to use removes to the first joint spare of spacing subassembly when the second water tank, and the second water tank is in stable state of accomodating, and the holding chamber has less volume this moment to make whole towards tooth ware's volume diminish, portable and accomodate.

Description

Tooth flushing device

Technical Field

The application belongs to the technical field of articles for daily use, and particularly relates to a tooth flushing device.

Background

The tooth flushing device is an auxiliary tool for cleaning the oral cavity, and the teeth and the slits between the teeth are cleaned by utilizing a pulse water flow impact mode; towards tooth ware in the use, need use a large amount of water, consequently need with outside water source intercommunication or increase the water tank volume on towards tooth ware body, lead to towards the volume increase of tooth ware, portable not.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a tooth flushing device, so as to solve the technical problem that the tooth flushing device in the prior art is inconvenient to carry.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing a dental irrigator comprising:

a tooth irrigator body;

the first water tank comprises a first tank body arranged on the tooth flushing device main body and a first limiting part arranged on the first tank body;

the second water tank is sleeved on the periphery of the first tank body and surrounds the first tank body to form an accommodating cavity; the second water tank is configured to be capable of moving axially relative to the first tank body so as to switch between a storage state and a spreading state and adjust the volume of the accommodating cavity;

the limiting assembly is arranged on the tooth flushing device main body and/or the first box body; the second water tank is limited on the limiting component in a storage state and is limited on the first limiting part in an expansion state.

Optionally, the second water tank is provided with a second limit part configured to form an axial limit with the first limit part when the second water tank is in the expanded state; the inner wall of the second limiting part is provided with a first clamping groove, the limiting assembly comprises a first clamping piece which is elastically arranged on the tooth flushing device main body and/or the first box body, and the first clamping piece is configured to be elastically clamped in the first clamping groove when the second water tank is in a storage state.

Optionally, the first clamping piece comprises a key elastically arranged on the tooth rinsing device main body and/or the first box body and a clamping part arranged on the key.

Optionally, the second limiting portion further includes a first boss and a second boss axially spaced from each other on the second water tank, the first boss and the second boss are spaced from each other to form the first slot, and the second water tank abuts against the first limiting portion through the second boss in the unfolded state; the clamping portion is configured to be elastically clamped in the first clamping groove when the second water tank is in a storage state, and is limited between the first boss and the second boss.

Optionally, joint portion is equipped with and is used for the guide joint portion joint extremely guide face in the first draw-in groove, the guide face is from being close to the one end of button is kept away from to the axial the one end reduction setting of button.

Optionally, be provided with the installation component in the tooth ware main part of dashing, the installation component including the shaping in the first installation department and the second installation department of tooth ware main part of dashing, first installation department with second installation department interval is formed with movable groove, first joint spare movably set up in movable groove is interior, first joint spare along radial wherein one side butt in first installation department, the opposite side with the butt has first elastic component between the second installation department.

Optionally, the second water tank includes a second tank body and a second limiting portion disposed on the second tank body, the second tank body is sleeved on the periphery of the first tank body and surrounds the first tank body to form the accommodating cavity, and a gap is formed between the inner periphery of the second tank body and the outer periphery of the first tank body.

Optionally, the first box body is sleeved on the outer periphery of the tooth flushing device main body, and a first sealing ring is sleeved between the outer periphery of the tooth flushing device main body and the inner periphery of the first box body;

and/or a second sealing ring is sleeved between the outer periphery of the first box body and the inner periphery of the second water tank.

Optionally, a second elastic element is abutted between the tooth flushing device body and the second water tank, and the second elastic element is used for bouncing the second water tank to an unfolded state when resetting.

Optionally, the first box body is sleeved on the periphery of the tooth flushing device main body;

either one of the outer peripheral side of the tooth flushing device main body and the inner peripheral side of the first box body is provided with a buckling block, the other one is provided with a buckling groove, and the buckling block is detachably buckled in the buckling groove.

The application provides a towards tooth ware's beneficial effect lies in:

according to the tooth flushing device provided by the embodiment of the application, the second water tank can axially move relative to the first box body on the tooth flushing device main body so as to adjust the volume of the accommodating cavity, is limited on the first limiting part when moving to the unfolding state, and is positioned on the limiting component when moving to the accommodating state; like this, when the second water tank removes to spacing when in first spacing portion, the second water tank is in stable expansion state, at this moment, the holding chamber has great volume, can the holding more water yield, the user need not frequent water injection in the use, high durability and convenient use, remove to spacing first joint spare of subassembly when the second water tank, the second water tank is in stable state of accomodating, the holding chamber has less volume this moment, thereby make whole towards the volume of tooth ware diminish, portable and accomodating.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a perspective view of a dental irrigator provided by an embodiment of the present application;

FIG. 2 is a cross-sectional view of a dental irrigator provided by an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partial cross-sectional view of a dental irrigator provided by an embodiment of the present application;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is a cross-sectional view of a second water chamber of the water toothpick provided in accordance with the embodiment of the present application;

FIG. 7 is a perspective view of a first water tank of the water toothpick according to the embodiment of the present application;

fig. 8 is a perspective view of a main body of the dental irrigator provided by the embodiment of the application.

Wherein, in the figures, the respective reference numerals:

1-a tooth flusher main body; 11-a mounting assembly; 111-a movable slot; 112-a first mounting portion; 113-a second mounting portion; 114-a first elastic member; 12-a fastening block;

2-a first water tank; 21-a first box; 22-a first stop; 23-a snap groove;

3-a second water tank; 31-an accommodating cavity; 32-a second limiting part; 321-a first card slot; 322-a first boss; 323-a second boss; 33-a second box; 331-a buffer; 34-a gap;

4-a limiting component; 41-a first snap-in member; 411-key press; 412-a snap-in section; 413-a guide surface;

5-a first sealing ring;

6-a second sealing ring;

7-a second elastic member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Based on this, the embodiment of the utility model provides a towards tooth ware uses this towards tooth ware can make the water tank volume adjustable, in the daily life use, portable, convenient to use.

Example one

As shown in fig. 1 to 5, a tooth rinsing device provided by the embodiment of the present application includes a tooth rinsing device body 1, a first water tank 2, a second water tank 3 and a limiting assembly 4; the tooth flushing device main body 1 is provided with a first box body 21, and the first box body 21 is provided with a first limiting part 22; the second water tank 3 is sleeved on the periphery of the first tank body 21 and encloses with the first tank body 21 to form an accommodating cavity 31; the second tank 3 is configured to be axially movable relative to the first tank 21 to switch between a stowed state and a deployed state, thereby adjusting the volume of the housing chamber 31; the limiting component 4 is arranged on the tooth flushing device main body 1 and/or the first box body 21; the second water tank 3 is limited on the limiting component 4 in the storage state and limited on the first limiting part 22 in the expansion state.

Specifically, in the present embodiment, the limit component 4 is disposed on the tooth irrigator body 1; of course, in other embodiments, the limiting component 4 may also be disposed on the first box 21, and may also be disposed on both the tooth flusher body 1 and the first box 21.

It should be noted that the second water tank 3 is limited on the limiting component 4 in the storage state and limited on the first limiting portion 22 in the expansion state. Based on this, it can be understood that, when the second water tank 3 is in the storage state, the limiting component 4 limits the second water tank 3, so as to prevent the second water tank 3 from moving axially and expanding relative to the first box 21, and simultaneously prevent the second water tank 3 from separating from the tooth flusher main body 1; when the second water tank 3 is in the unfolded state, the first limiting portion 22 limits the second water tank 3, so that the second water tank 3 is prevented from moving axially relative to the first tank body 21 and separating from the first tank body 21, and the accommodating cavity 31 has a complete accommodating function.

Wherein the "axial direction" described above and below refers to the axial direction of the cylinder defined by the outer peripheral wall of the first water tank 2 and the cylinder defined by the inner peripheral wall of the second water tank 3, and the "radial direction" described above and below refers to the radial direction of the circle defined by the outer peripheral wall of the first water tank 2 and the circle defined by the inner peripheral wall of the second water tank 3.

Specifically, when the tooth flusher is used and the second water tank 3 is in a storage state, the second water tank 3 is connected with the tooth flusher main body 1 through the limiting component 4, and the second water tank 3 can be sleeved on the periphery of the first water tank 2; when the second water tank 3 is in an unfolded state and the limiting component 4 is only arranged on the tooth flusher main body 1, the limiting component 4 can be separated from the second water tank 3, so that the second water tank 3 can be driven to move in the axis direction of the first water tank 2, the second water tank 3 is limited through the first limiting part 22, the volume of the accommodating cavity 31 is equal to the sum of the volume of the first box body 21 and the volume of the second water tank 3, water is taken from the accommodating cavity 31 through the tooth flusher main body 1 for tooth flushing, and after tooth flushing is finished, the second water tank 3 and the limiting component 4 are reassembled by moving the second water tank 3, so that the second water tank 3 is reconnected with the tooth flusher main body 1; when the limit component 4 is only arranged on the first water tank 2, the second water tank 3 can be fixed on the periphery of the first water tank 2 through the limit component 4, so that the second water tank 3 is connected with the first water tank 2, and the limit component 4 can be separated from the second water tank 3, so that the second water tank 3 can move on the first water tank 2; when the position limiting component 4 is simultaneously arranged on the tooth flusher main body 1 and the first water tank 2, the second water tank 3 can be simultaneously connected with the first water tank 2 and the tooth flusher main body 1 through the position limiting component 4, and the position limiting component 4 can be separated from the second water tank 3, so that the second water tank 3 can be separated from the tooth flusher main body 1, and can move on the first water tank 2.

It should be noted that, in the present embodiment, the tooth flusher body 1 can inject water into the accommodating cavity 31; of course, in other embodiments, the first water tank 2 or the second water tank 3 is provided with a water filling port, so that water can be filled into the accommodating cavity 31.

Compared with the prior art, the tooth flusher provided by the application has the advantages that the second water tank 3 can axially move relative to the first box body 21 on the tooth flusher main body 1 to adjust the volume of the accommodating cavity 31, and the second water tank 3 is limited on the first limiting part 22 when moving to the unfolding state and is limited on the limiting component 4 when moving to the accommodating state; like this, when second water tank 3 moves to spacing when in first spacing portion 22, second water tank 3 is in stable expansion state, at this moment, holding chamber 31 has great volume, can hold more water yield, the user is in the use, need not frequent water injection, high durability and convenient use, move to the first joint spare 41 of spacing subassembly 4 when second water tank 3, second water tank 3 is in stable state of accomodating, holding chamber 31 has less volume this moment, thereby make whole towards the volume of tooth ware diminish, portable and accomodate.

In another embodiment of the present application, referring to fig. 3 and 5, the second water tank 3 is provided with a second limiting portion 32, and the second limiting portion 32 is configured to form an axial limit with the first limiting portion 22 when the second water tank 3 is in the unfolded state; the inner wall of the second limiting portion 32 is formed with a first engaging groove 321, the limiting component 4 includes a first engaging member 41 elastically disposed on the tooth-rinsing device body 1 and/or the first box 21, and the first engaging member 41 is configured to elastically engage with the first engaging groove 321 when the second water tank 3 is in the storage state.

Specifically, when the tooth flusher is used, when the second water tank 3 is in a storage state, the second water tank 3 is connected with the tooth flusher main body 1 through the first clamping piece 41, wherein the first clamping piece 41 is assembled with the first clamping groove 321; when the second water tank 3 is in an unfolded state and when the first clamping piece 41 is only arranged on the tooth flushing device main body 1, the second water tank 3 is connected with the tooth flushing device main body 1 through the first clamping piece 41, wherein the first clamping piece 41 is elastically clamped in the first clamping groove 321, the first clamping piece 41 can be separated from the second water tank 3, and after tooth flushing is finished, the second water tank 3 is moved to reconnect the first clamping piece 41 with the first clamping groove 321; when the first clamping member 41 is only arranged on the first box 21, the second water tank 3 can be fixed on the periphery of the first box 21 through the first clamping member 41, and the first clamping member 41 can be separated from the second water tank 3, so that the second water tank 3 can move on the first box 21; when first joint spare 41 sets up simultaneously on towards tooth ware main part 1 and first box 21, second water tank 3 can be connected with towards tooth ware main part 1 and first box 21 simultaneously through first joint spare 41, and second water tank 3 can separate with first joint spare 41 to make second water tank 3 can separate with towards tooth ware main part 1, and can remove on first box 21.

With such arrangement, when the second water tank 3 is in the storage state, the first clamping piece 41 is clamped with the first clamping groove 321, so that the connection stability of the second water tank 3 in the storage state can be improved, and the second water tank 3 is prevented from moving on the first box body 21; in addition, first joint spare 41 can realize dismantling the connection through the joint with first draw-in groove 321, dismantles simple to operate, convenient to use.

In another embodiment of the present application, referring to fig. 3, the first engaging member 41 includes a button 411 elastically disposed on the tooth rinsing device body 1 and/or the first box 21, and an engaging portion 412 disposed on the button 411.

Specifically, when the button 411 is only disposed on the dental irrigator body 1, the driving button 411 moves in the elastic deformation direction to separate the clamping portion 412 from the first clamping groove 321, so that the second water tank 3 is separated from the dental irrigator body 1; when the button 411 is disposed only on the first case 21, the catching portion 412 can be separated from the first catching groove 321, so that the second water tank 3 fixed on the first case 21 can move on the first case 21; when the button 411 is simultaneously provided on the first bidet body 1 and the first tank 21, the second water tank 3 is separated from the bidet body 1 and can move on the first tank 21 when the button 411 is driven to move.

With such arrangement, through the cooperation between the clamping portion 412 and the first clamping groove 321, the second water tank 3 can be clamped with the first clamping member 41, so that the second water tank 3 can be switched between the storage state and the expansion state; in addition, through the button 411, the user only needs to drive the button 411, and the second water tank 3 can be driven to move, which is convenient to use.

In another embodiment of the present application, please refer to fig. 3 and 5, the second position-limiting portion 32 further includes a first boss 322 and a second boss 323 axially spaced on the second water tank 3, the first boss 322 and the second boss 323 form a first engaging groove 321 at a spacing, and the second water tank 3 abuts against the first position-limiting portion 22 through the second boss 323 in the expanded state; the clamping portion 412 is configured to be elastically clamped in the first clamping groove 321 when the second water tank 3 is in the receiving state, and is limited between the first boss 322 and the second boss 323.

With such arrangement, the clamping portion 412 can be limited through the first boss 322 and the second boss 323, so that the clamping portion 412 is prevented from being separated from the first clamping groove 321; in addition, the second tank 3 can be prevented from coming off the first casing 21 in the expanded state by the engagement between the second boss 323 and the first stopper 22.

In another embodiment of the present application, referring to fig. 3 and 6, the locking portion 412 is provided with a guide surface 413 for guiding the locking portion 412 to be locked in the first locking slot 321, and the guide surface 413 is tapered from an end close to the key 411 to an end axially far from the key 411.

Specifically, when the second water tank 3 is switched from the unfolded state to the stored state, the second water tank 3 is driven to move toward the tooth flusher main body 1, wherein the first boss 322 close to the tooth flusher main body 1 is in contact with the guide surface 413, and the clamping portion 412 is guided by the guide surface 413, so that the first clamping member 41 moves along the elastic deformation direction until the clamping portion 412 is clamped into the first clamping groove 321.

So set up, when switching over second water tank 3 to the state of accomodating from the expansion state, through guide face 413, the user only needs drive second water tank 3 and removes towards tooth flushing device main part 1, can be with in the direct joint of joint portion 412 is to first draw-in groove 321, convenient to use.

In another embodiment of the present application, please refer to fig. 3, a mounting component 11 is disposed on the tooth irrigator body 1, the mounting component 11 includes a first mounting portion 112 and a second mounting portion 113 formed on the tooth irrigator body 1, a movable groove 111 is formed between the first mounting portion 112 and the second mounting portion 113 at an interval, the first clamping member 41 is movably disposed in the movable groove 111, one radial side of the first clamping member 41 abuts against the first mounting portion 112, and a first elastic member 114 abuts against between the other radial side and the second mounting portion 113.

Specifically, when the storage state and the expansion state of the second water tank 3 are switched, the first clamping member 41 is driven to move in the movable groove 111, the first elastic member 114 is compressed, the first clamping member 41 is separated from the first clamping groove 321 at this time, and the second water tank 3 is driven to move on the first tank 21, and after the switching is completed, the first elastic member 114 drives the first clamping member 41 to reset.

Specifically, when the first clamping member 41 includes the key 411 and the clamping portion 412, the first mounting portion 112 is opened with a mounting hole, and one side of the key 411 close to the first mounting portion 112 is exposed outside the tooth washing device main body 1 through the mounting hole.

So set up, when switching over the state of accomodating with the expansion state to second water tank 3, can guarantee through activity groove 111 that button 411 has sufficient space to remove when driving button 411 and remove, can support button 411 through first elastic component 114, prevent that button 411 from getting into activity groove 111 completely to can drive button 411 automatic re-setting, convenient to use.

Optionally, the first elastic element 114 is a spring or a leaf spring.

In another embodiment of the present application, referring to fig. 2, the second water tank 3 includes a second tank body 33 and a second limiting portion 32 disposed on the second tank body 33, the second tank body 33 is sleeved on the outer periphery of the first tank body 21 and surrounds the first tank body 21 to form an accommodating chamber 31, and a gap 34 is formed between the inner periphery of the second tank body 33 and the outer periphery of the first tank body 21.

With the arrangement, the gap 34 can prevent the second box 33 from directly contacting the first box 21 in the process of moving the second box 33, and further prevent the second box 33 from being blocked by the first box 21 in the moving process to prevent the second box 33 from being incapable of moving.

In another embodiment of the present application, please refer to fig. 4, the first box 21 is sleeved on the outer periphery of the tooth irrigator body 1, and a first sealing ring 5 is sleeved between the outer periphery of the tooth irrigator body 1 and the inner periphery of the first box 21;

and/or a second sealing ring 6 is sleeved between the outer peripheral side of the first box body 21 and the inner peripheral side of the second water tank 3.

Specifically, the first limiting portion 22 includes two bosses arranged along the axial direction of the first case 21 at intervals, the two bosses form mounting grooves at intervals, the second seal ring 6 is sleeved in the mounting grooves, and the second seal ring 6 abuts against the inner peripheral side of the second case 33 in the expanded state.

With this arrangement, when the tooth flusher is used, the first seal ring 5 can prevent the water in the accommodating chamber 31 from leaking between the tooth flusher main body 1 and the first tank 21, and the second seal ring 6 can prevent the water in the accommodating chamber 31 from leaking between the first tank 21 and the second water tank 3.

Alternatively, a buffer portion 331 is formed on the inner peripheral side of the second casing 33, the buffer portion 331 is located on a side of the second boss 323 facing away from the first snap member 41, and the buffer portion 331 is configured to be attached to the second seal ring 6 in the expanded state.

With this arrangement, when the second tank 3 is switched from the storage state to the expansion state, the buffer portion 331 in the second tank 33 can abut against the second gasket 6, which contributes to further improving the sealing property between the first tank 21 and the second tank 33.

In another embodiment of the present application, please refer to fig. 4, a second elastic element 7 is abutted between the tooth flusher body 1 and the second water tank 3, and the second elastic element 7 is used for bouncing the second water tank 3 to the unfolded state when the tooth flusher is reset.

Specifically, when the second water tank 3 is in the storage state, the second elastic member 7 is in the compression state, and when the second water tank 3 needs to be switched to the expansion state, the button 411 is first driven to move the clamping portion 412, so that the clamping portion 412 can be separated from the first clamping groove 321, the second elastic member 7 starts to reset and extend, and the second elastic member 7 drives the second water tank 3 to move on the first tank 21.

So set up, when needs switch second water tank 3 to the expansion state, can drive second water tank 3 auto-eject through second elastic component 7, the user only need drive button 411 remove can, convenient to use.

Optionally, the second elastic element 7 is sleeved on the tooth irrigator body 1.

So set up, guarantee that second elastic component 7 can only follow the axial displacement of towards tooth ware main part 1, prevent that the crooked dislocation of second elastic component 7 from leading to the unable auto-eject of second water tank 3.

Optionally, the second elastic element 7 is a spring or a leaf spring.

In another embodiment of the present application, referring to fig. 7 to 8, the first box 21 is sleeved on the outer circumference of the tooth irrigator body 1;

either the outer peripheral side of the tooth flusher body 1 or the inner peripheral side of the first box 21 is provided with a fastening block 12, the other is provided with a fastening groove 23, and the fastening block 12 is detachably fastened in the fastening groove 23.

Specifically, in the present embodiment, the fastening block 12 is disposed on the tooth flusher main body 1 and the fastening groove 23 is disposed on the first tank 21, when the first water tank 2 needs to be detached from the tooth flusher main body 1, the fastening block 12 can be separated from the fastening groove 23 by rotating the first water tank 2, and the first water tank 2 can be detached from the tooth flusher main body 1.

So set up, can realize dismantling the connection through the lock joint structure, and then can dismantle first water tank 2 and second water tank 3 from towards tooth ware main part 1, when the spare part of towards tooth ware damages, the maintenance of being convenient for is changed.

Optionally, the snap groove 23 is an L-shaped groove.

So set up, when dismantling first water tank 2 and second water tank 3, at first rotatory first water tank 2, so that lock joint piece 12 removes to vertical groove in the horizontal groove limit in L type groove, then drive first water tank 2 along the axial displacement of towards tooth ware main part 1, so that lock joint piece 12 deviates from in the vertical groove limit in L type groove, can dismantle first water tank 2 and second water tank 3 from towards tooth ware main part 1, otherwise can install first water tank 2 and second water tank 3 to towards tooth ware main part 1 on, dismantle simple to operate.

Example two

This embodiment is substantially the same as the first embodiment except that: the second water tank 3 is elastically provided with a second clamping member (not shown in the figure), the limiting component 4 is formed with a second clamping groove (not shown in the figure), and the second clamping member is configured to be elastically clamped in the second clamping groove when the second water tank 3 is in the storage state, and elastically abuts against the first limiting portion 22 when the second water tank 3 is in the expansion state.

Specifically, when switching the storage state and the expansion state of the second water tank 3, the second clamping member is driven to move along the elastic deformation direction at first, so that the second clamping member is separated from the second clamping groove, and the second water tank 3 can be driven to move on the first tank 21.

So set up, through the cooperation between second joint spare and the second draw-in groove to make second water tank 3 and tooth ware main part 1 can realize releasable connection, make second water tank 3 can switch convenient to use between accomodate state and expansion state.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A dental irrigator, comprising:

a tooth irrigator body;

the first water tank comprises a first tank body arranged on the tooth flushing device main body and a first limiting part arranged on the first tank body;

the second water tank is sleeved on the periphery of the first tank body and surrounds the first tank body to form an accommodating cavity; the second water tank is configured to be capable of moving axially relative to the first tank body so as to switch between a storage state and a spreading state and adjust the volume of the accommodating cavity;

the limiting assembly is arranged on the tooth flushing device main body and/or the first box body; the second water tank is limited on the limiting component in the storage state and is limited on the first limiting part in the expansion state.

2. The dental irrigator of claim 1 wherein the second tank is provided with a second stop portion configured to form an axial stop with the first stop portion when the second tank is in the deployed condition; the inner wall of the second limiting part is provided with a first clamping groove, the limiting assembly comprises a first clamping piece which is elastically arranged on the tooth flushing device main body and/or the first box body, and the first clamping piece is configured to be elastically clamped in the first clamping groove when the second water tank is in a storage state.

3. The tooth-rinsing device as claimed in claim 2, wherein said first engaging member comprises a button elastically disposed on said tooth-rinsing device body and/or said first housing and an engaging portion disposed on said button.

4. The dental irrigator of claim 3 wherein said second retainer further comprises first and second bosses axially spaced on said second tank, said first and second bosses being spaced to define said first catch, said second tank in said expanded condition abutting said first retainer by said second bosses; the clamping portion is configured to be elastically clamped in the first clamping groove when the second water tank is in a storage state, and is limited between the first boss and the second boss.

5. The tooth irrigator according to claim 4, wherein said clip portion has a guide surface for guiding said clip portion to be clipped into said first clip groove, said guide surface being tapered from an end adjacent to said button to an end axially remote from said button.

6. The tooth flusher according to claim 2, wherein a mounting component is arranged on said tooth flusher body, said mounting component comprises a first mounting portion and a second mounting portion which are formed on said tooth flusher body, a movable groove is formed between said first mounting portion and said second mounting portion, said first joint member is movably arranged in said movable groove, said first joint member abuts against said first mounting portion along one of radial sides, and said second mounting portion abuts against a first elastic member therebetween.

7. The tooth flushing device of claim 2, wherein the second water tank comprises a second tank body and the second limiting portion disposed on the second tank body, the second tank body is sleeved on the outer periphery of the first tank body and forms the accommodating cavity with the first tank body, and a gap is formed between the inner periphery of the second tank body and the outer periphery of the first tank body.

8. The apparatus according to any one of claims 1 to 7, wherein the first housing is fitted around an outer circumference of the apparatus body, and a first packing is fitted between an outer circumference side of the apparatus body and an inner circumference side of the first housing;

and/or a second sealing ring is sleeved between the outer periphery of the first box body and the inner periphery of the second water tank.

9. The dental irrigator according to any one of claims 1 to 7 wherein a second spring is abutted between said irrigator body and said second water reservoir for biasing said second water reservoir to an expanded condition upon return.

10. The dental irrigator according to any one of claims 1 to 7 wherein said first housing is fitted around the periphery of said dental irrigator body;

either one of the outer peripheral side of the tooth flushing device main body and the inner peripheral side of the first box body is provided with a buckling block, the other one is provided with a buckling groove, and the buckling block is detachably buckled in the buckling groove.

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