阅读说明：本技术 一种供水装置及口腔清洁设备 (Water supply installation and oral cavity cleaning device ) 是由 朱学仕 黄道臣 黄拔梓 于 2021-10-28 设计创作，主要内容包括：本申请公开了一种供水装置及口腔清洁设备,涉及口腔清洁技术领域。供水装置包括水箱,所述水箱内形成有容置腔,所述水箱包括螺旋伸缩机构,所述螺旋伸缩机构包括收缩状态和伸展状态；在所述收缩状态和所述伸展状态间切换时,所述螺旋伸缩机构用于调节所述容置腔的容积连续变化。本申请提供的供水装置及口腔清洁设备,可实现水箱内容置腔容积大小的多种切换,满足用户多样化需求。(The application discloses water supply installation and oral cavity cleaning device relates to oral cavity cleaning technical field. The water supply device comprises a water tank, wherein an accommodating cavity is formed in the water tank, the water tank comprises a spiral telescopic mechanism, and the spiral telescopic mechanism comprises a contraction state and an extension state; when the telescopic screw mechanism is switched between the contraction state and the extension state, the spiral telescopic mechanism is used for adjusting the volume of the accommodating cavity to be continuously changed. The application provides a water supply installation and oral cavity cleaning device can realize the multiple switching of holding chamber volume size in the water tank, satisfies user diversified demand.)

1. A water supply device is characterized by comprising a water tank, wherein an accommodating cavity is formed in the water tank, the water tank comprises a spiral telescopic mechanism, and the spiral telescopic mechanism comprises a contraction state and an extension state;

when the telescopic screw mechanism is switched between the contraction state and the extension state, the spiral telescopic mechanism is used for adjusting the volume of the accommodating cavity to be continuously changed.

2. The water supply of claim 1 wherein the spiral telescoping mechanism comprises a plurality of sequentially connected spiral telescoping units, the spiral telescoping units comprising a collapsed state and an expanded state.

3. The water supply device according to claim 2, wherein the spiral telescopic unit comprises a folding component, an adapter part and a handheld part which are connected in sequence;

when spiral telescoping unit is in when fold condition, folding assembly to holding chamber direction protrusion, switching portion presss from both sides and locates handheld portion and adjacent spiral telescoping unit between the handheld portion, adjacent spiral telescoping unit be with folding assembly is connected spiral telescoping unit.

4. The water supply apparatus according to claim 3, wherein when the helical telescopic unit is in the folded state, the hand-held portion is disposed to protrude in a direction away from an axis L of the water tank with respect to the adaptor portion.

5. The water supply device as claimed in claim 4, wherein a side of the hand-held part close to the adapter part forms a first force-bearing surface, and a side of the hand-held part far from the adapter part forms a second force-bearing surface.

6. The water supply device as claimed in claim 3, wherein an embedding groove is further formed on one side of the handheld portion close to the accommodating cavity, and the embedding grooves of the adjacent spiral telescopic units are communicated with each other.

7. The water supply device as claimed in claim 6, further comprising a water pipe, wherein the water pipe is embedded in the plurality of embedding grooves and spirally arranged in the water tank.

8. The water supply device according to any one of claims 3 to 7 wherein the folding assembly comprises a first fold and a second fold, the second fold being connected between the first fold and the adaptor;

when the spiral telescopic unit is in the unfolded state, the second folding part is obliquely arranged relative to the axis L of the water tank;

the adapter part inclines towards the first folding part and the second folding part gradually to the direction close to the axis L.

9. The water supply device according to claim 1, wherein when the screw expansion mechanism is in the extended state, a folding mark width n and a screw pitch m of the screw expansion mechanism satisfy,

10. an oral cleaning device comprising a water supply apparatus as claimed in any one of claims 1 to 9.

Technical Field

The application relates to the technical field of oral cavity cleaning, in particular to a water supply device and oral cavity cleaning equipment.

Background

The tooth flusher is used as an auxiliary tool for cleaning the oral cavity, and flushes the oral cavity by water flow with certain water pressure so as to flush sundries in crevices of the oral cavity and clean the oral cavity. However, the conventional electric tooth flushing device usually adopts a relatively fixed water tank, and the switching between different volumes cannot be realized during water injection.

Disclosure of Invention

The application provides a water supply installation and oral cavity cleaning device to realize the continuous variation of water tank volume.

The present application provides:

a water supply device comprises a water tank, wherein an accommodating cavity is formed in the water tank, the water tank comprises a spiral telescopic mechanism, and the spiral telescopic mechanism comprises a contraction state and an extension state;

when the telescopic screw mechanism is switched between the contraction state and the extension state, the spiral telescopic mechanism is used for adjusting the volume of the accommodating cavity to be continuously changed.

In some possible embodiments, the spiral telescopic mechanism comprises a plurality of spiral telescopic units connected in sequence, and the spiral telescopic units comprise a folded state and an unfolded state.

In some possible embodiments, the spiral telescopic unit comprises a folding component, an adapter part and a handheld part which are connected in sequence;

when spiral telescoping unit is in when fold condition, folding assembly to holding chamber direction protrusion, switching portion presss from both sides and locates handheld portion and adjacent spiral telescoping unit between the handheld portion, adjacent spiral telescoping unit be with folding assembly is connected spiral telescoping unit.

In some possible embodiments, when the helical telescopic unit is in the folded state, the hand-held portion is disposed to protrude in a direction away from the axis L of the water tank relative to the adaptor portion.

In some possible embodiments, a side of the hand-held portion close to the adapter portion forms a first force-bearing surface, and a side of the hand-held portion far from the adapter portion forms a second force-bearing surface.

In some possible embodiments, an embedding groove is further formed in one side of the handheld portion, which is close to the accommodating cavity, and the embedding grooves of the adjacent spiral telescopic units are communicated.

In some possible embodiments, the water supply device further includes a water pipe, the water pipe is embedded in the multiple embedded grooves, and the water pipe is spirally arranged in the water tank.

In some possible embodiments, the folding assembly comprises a first fold and a second fold, the second fold being connected between the first fold and the transition;

when the spiral telescopic unit is in the unfolded state, the second folding part is obliquely arranged relative to the axis L of the water tank;

the adapter part inclines towards the first folding part and the second folding part gradually to the direction close to the axis L.

In some possible embodiments, when the screw expansion mechanism is in the extended state, the folding mark width n and the screw pitch m of the screw expansion mechanism satisfy,

in addition, this application still provides an oral cleaning device, includes that this application provides water supply installation.

The beneficial effect of this application is: the application provides a water supply installation and oral cavity cleaning device, and oral cavity cleaning device includes this water supply installation. Wherein, water supply installation includes the water tank, is formed with the holding chamber in the water tank, and the water tank is including spiral telescopic machanism, and spiral telescopic machanism can realize the continuous variation of holding chamber volume when carrying out the switching between contraction state and extension state. It will be appreciated that the volume of the chamber is at its maximum when the screw mechanism is in the extended condition. When the spiral telescopic mechanism is in a contraction state, the volume of the accommodating cavity is minimum. In use, a user can adjust the state of the spiral telescopic mechanism according to needs and can also interrupt the state switching process of the spiral telescopic mechanism, so that the accommodating cavity can be kept in any volume between the maximum volume and the minimum volume. When the cleaning liquid is filled, the volume of the water tank can be adjusted randomly by a user according to needs, and diversified requirements of the user are met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Figure 1 shows a schematic perspective view of an oral cleaning device in some embodiments;

figure 2 shows a schematic diagram of an explosive structure of an oral cleaning device in some embodiments;

FIG. 3 is a schematic perspective view of a water supply apparatus in a retracted state according to some embodiments;

FIG. 4 is a schematic cross-sectional view of the water supply apparatus in a contracted state in some embodiments;

FIG. 5 is a schematic sectional view showing a contracted state of the water tank in some embodiments;

FIG. 6 is a schematic view showing the structure of the water supply apparatus in an extended state in some embodiments;

FIG. 7 is a schematic cross-sectional view of the extended tank of some embodiments;

FIG. 8 is a partially enlarged schematic view of portion A of FIG. 7;

FIG. 9 is a schematic diagram showing a partial cross-sectional structure of the helical telescoping unit in a folded state in some embodiments;

FIG. 10 illustrates a dimensioning schematic of a water tank in some embodiments;

FIG. 11 is a schematic cross-sectional view of the water supply apparatus in an extended state in some embodiments;

fig. 12 shows a schematic view of the structure of the water duct in a contracted state in some embodiments;

fig. 13 shows a schematic view of the structure of the water duct in a stretched state in some embodiments.

Description of the main element symbols:

100-a water supply device; 10-a water tank; 10 a-an accommodating cavity; 11-a connecting tube; 12-a spiral telescoping mechanism; 12 a-contracted state; 12 b-an extended state; 121-a spiral expansion unit; 121 a-folded state; 121 b-expanded state; 12101-first helical telescopic unit; 12102-second helical telescopic unit; 12103-third helical telescopic unit; 1211-hand-held portion; 1212-an adapter portion; 1213-folding assembly; 12131-first fold; 12132-second fold; 12111-first force-bearing surface; 12112-second force-bearing surface; 12113-mosaic slots; 13-a bottom shell; 20-water conveying pipe; 20 a-water inlet end; 20 b-water outlet end; 21-a first connection mouth; 200-a host; 201-a second connection mouth; 300-nozzle.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of 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 implicitly indicating 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.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Embodiments provide an oral cleaning device that provides a cleaning function to an oral cavity. In particular, the oral cleaning device can rinse the oral cavity of the user to remove food residues nearby the teeth, so that the oral problems of the user are reduced.

As shown in fig. 1 and 2, the oral cleaning device includes a water supply device 100, a main body 200, and a nozzle 300. The water supply device 100 may be used to store cleaning solutions such as clean water and physiological saline, and the water supply device 100 may be installed at one end of the main unit 200 and is communicated with the inside of the main unit 200. The nozzle 300 may be installed at the other end of the main body 200 and communicate with the inside of the main body 200. It is understood that a water pump (not shown) may be disposed in the main body 200, an input end of the water pump is communicated with the water supply device 100, and an output end of the water pump is communicated with the nozzle 300.

In the working process, one end of the nozzle 300, which is far away from the main machine 200, can extend into the oral cavity of a user, the water pump can pressurize and convey the cleaning liquid in the water supply device 100 to the nozzle 300, and the nozzle 300 sprays the cleaning liquid to the corresponding position of the oral cavity, so as to realize oral cavity cleaning.

As shown in fig. 3 and 6, the water supply device 100 includes a water tank 10, wherein the water tank 10 is hollow to form a receiving chamber 10a, and the receiving chamber 10a can be used for storing a cleaning solution.

In some embodiments, the tank 10 is substantially cylindrical. Tank 10 may include a screw mechanism 12, it being understood that screw mechanism 12 is capable of extending and retracting to achieve a telescoping effect. Accordingly, the helical telescoping mechanism 12 includes a retracted state 12a and an extended state 12 b. Wherein, when the spiral telescopic mechanism 12 is in the contraction state 12a, the volume of the accommodating cavity 10a is minimum. When the helical telescoping mechanism 12 is in the extended state 12b, the volume of the accommodation chamber 10a is at a maximum.

In use, the screw mechanism 12 is reciprocally switchable between a retracted state 12a and an extended state 12b to effect a change in volume of the receiving chamber 10 a. The volume of the accommodating chamber 10a can be continuously changed during the switching of the screw telescoping mechanism 12 from the contracted state 12a to the expanded state 12b or during the switching from the expanded state 12b to the contracted state 12 a.

Therefore, during the expansion or contraction of the screw mechanism 12, the expansion or contraction of the screw mechanism 12 can be stopped as needed, and the volume of the accommodating chamber 10a can be maintained at any desired volume between the minimum volume and the maximum volume.

Therefore, a user can make the spiral telescopic mechanism 12 perform corresponding telescopic actions as required, so that the water tank 10 can provide the accommodating cavity 10a with a required size for the user to store a proper amount of cleaning solution. It will be appreciated that when the oral cleaning apparatus is not in use, the user may place the screw jack 12 in the retracted state 12a to reduce the space occupied and facilitate storage and carrying.

In the prior art, a conical variable-volume water tank is generally adopted, and after the variable-volume water tank is contracted, the variable-volume water tank can be in a disc-shaped structure. When the variable volume tank is deployed, full opening can only be achieved. The existing variable-volume water tank only has two using states of maximum volume or minimum volume, and can not provide various volume changes, so that the diversified requirements of users can not be met.

And adopt spiral telescopic machanism 12 in this embodiment, can realize the continuous incessant change of holding chamber 10a volume for holding chamber 10 a's volume can stop at maximum volume, minimum volume and the arbitrary volume size between maximum volume to the minimum volume, satisfies user's diversified demand, has higher commonality.

As shown in fig. 1 and 3, in some embodiments, the water tank 10 further includes a connection pipe 11 and a bottom case 13. The connecting pipe 11 and the bottom case 13 are respectively connected to two ends of the spiral telescopic mechanism 12, and the connecting pipe 11, the spiral telescopic mechanism 12 and the bottom case 13 cooperate to enclose the accommodating cavity 10 a. In an embodiment, the connection tube 11, the spiral telescopic mechanism 12 and the bottom case 13 may be integrally formed by injection molding, stamping, or the like.

In the embodiment, the water tank 10 has an opening structure to facilitate the filling of the cleaning solution into the accommodating chamber 10 a. The opening structure may be disposed at an end of the connection pipe 11 away from the spiral expansion mechanism 12, and correspondingly, an end of the water tank 10 close to the bottom shell 13 is a closed structure.

The end of the connection pipe 11 away from the spiral telescopic mechanism 12 can be used for connecting the main unit 200, that is, the opening structure of the water tank 10 is connected to the main unit 200. In the embodiment, the connection pipe 11 is detachably connected to the main body 200, so that the water tank 10 is detached from the main body 200 to be filled with a cleaning solution. For example, the connection pipe 11 and the main body 200 may be connected by screwing, and accordingly, the inner wall of the connection pipe 11 may be provided with an internal thread (not shown), and the main body 200 may be provided with a matching external thread (not shown).

In other embodiments, the connection tube 11 and the host 200 may be detachably connected by a snap connection or the like. Of course, in other embodiments, it is not excluded that the connection pipe 11 is detachably connected to the main body 200, and accordingly, the water tank 10 may be opened with water inlets along the circumference thereof to facilitate the injection of the cleaning solution.

It can be understood that the connection pipe 11 is connected with the main unit 200 in a sealing manner to avoid leakage and other problems, and correspondingly, a sealing gasket (not shown) and other structures may be disposed at the connection position of the connection pipe 11 and the main unit 200 to seal the connection position.

As shown in fig. 3 and 6, the spiral expanding and contracting mechanism 12 may be formed by sequentially connecting a plurality of spiral expanding and contracting units 121. In one embodiment, the spiral structure rotating 360 ° around the axis L of the tank 10 may be a unit, i.e., a spiral expansion unit 121.

As shown in fig. 5 to 9, in an embodiment, the spiral telescopic unit 121 may include a folded state 121a and an unfolded state 121b, and by folding and unfolding of each spiral telescopic unit 121, the spiral telescopic mechanism 12 can be extended and contracted, thereby changing the volume of the accommodating chamber 10 a.

As shown in fig. 6, the spiral retracting unit 121 may include a hand-held portion 1211, an adapter portion 1212, and a folding assembly 1213, wherein the adapter portion 1212 is connected between the hand-held portion 1211 and the folding assembly 1213. It is understood that in one spiral telescopic unit 121, the side of the hand-held portion 1211 far from the adapting portion 1212 may be connected with the folding member 1213 in the adjacent spiral telescopic unit 121, and the side of the folding member 1213 far from the adapting portion 1212 may be connected with the hand-held portion 1211 in the other adjacent spiral telescopic unit 121.

As shown in fig. 11, illustratively, a first helical telescopic unit 12101, a second helical telescopic unit 12102 and a third helical telescopic unit 12103 are connected in sequence. In the second helical telescopic unit 12102, a side of the hand-held portion 1211 remote from the adaptor portion 1212 is connected to the folding member 1213 of the third helical telescopic unit 12103, and a side of the folding member 1213 remote from the adaptor portion 1212 is connected to the hand-held portion 1211 of the first helical telescopic unit 12101.

As shown in fig. 7 and 8, the folding assembly 1213 comprises a first fold 12131 and a second fold 12132, wherein the second fold 12132 is connected between the first fold 12131 and the transition 1212.

In some embodiments, when the helical telescoping unit 121 is in the deployed state 121b, the first fold 12131 is disposed parallel to the axis L and the second fold 12132 is disposed obliquely to the axis L. Specifically, the second folding portion 12132 gradually inclines in a direction close to the axis L from the end close to the adapter portion 1212 to the end close to the first folding portion 12131.

In other embodiments, the first fold 12131 may also be disposed obliquely to the axis L. Specifically, the first fold portion 12131 gradually inclines away from the axis L from the end near the second fold portion 12132 to the end away from the second fold portion 12132. Alternatively, the first folding portion 12131 gradually inclines from the end close to the second folding portion 12132 to the end away from the second folding portion 12132 in the direction close to the axis L, and the inclination of the first folding portion 12131 with respect to the axis L is smaller than the inclination of the second folding portion 12132 with respect to the axis L.

Referring to fig. 9 again, when the helical telescopic unit 121 is in the folded state 121a, the second folding portion 12132 is folded with the first folding portion 12131. The first fold portion 12131 gradually inclines away from the axis L from the end near the second fold portion 12132 to the end away from the second fold portion 12132. The second folding portion 12132 is parallel to the first folding portion 12131, and a side of the second folding portion 12132 away from the accommodating cavity 10a is attached to a side of the first folding portion 12131 away from the accommodating cavity 10 a.

During the folding process, the first folding portion 12131 can be tilted by the second folding portion 12132, wherein one end of the first folding portion 12131 close to the second folding portion 12132 moves to a direction close to the axis L, and at the same time, the second folding portion 12132 is folded with respect to the first folding portion 12131 until the second folding portion 12132 is attached to the side of the first folding portion 12131 away from the accommodating cavity 10 a.

During the folding of the second folding portion 12132 and the first folding portion 12131, the height of the water tank 10 gradually decreases, and accordingly, the volume of the accommodating chamber 10a gradually decreases to achieve the adjustment of the volume of the accommodating chamber 10 a. It can be understood that when the helical telescopic unit 121 is switched from the folded state 121a to the unfolded state 121b, the second folding portion 12132 is unfolded from the first folding portion 12131, the height of the water tank 10 gradually increases, and the volume of the accommodating chamber 10a gradually increases.

As shown in fig. 8 and 9, in some embodiments, the adaptor 1212 may be parallel to the axis L when the helical telescoping unit 121 is in the extended state 121b and the folded state 121 a. It can be understood that, during the state switching process of the helical telescopic unit 121, the adapting portion 1212 may be always parallel to the axis L, and the adapting portion 1212 may move along the axis L to push the second folding portion 12132 and the first folding portion 12131 to move until the second folding portion 12132 is folded to be attached to the first folding portion 12131.

As shown in fig. 9 and 10, in some embodiments, the outer diameter d of the hand-held portion 1211₁May be greater than the outer diameter d of the transition portion 1212₂So that a step structure may be formed at the connection between the handheld portion 1211 and the adaptor portion 1212.

In some embodiments, the outer diameter d of the hand-held portion 1211₁Greater than the maximum outer diameter d of the folding assembly 1213₃Outer diameter d of transition portion 1212₂May also be larger than the maximum outer diameter d of the folding assembly 1213₃So that the folding unit 1213 can be smoothly accommodated in a direction close to the axis L when the helical telescopic unit 121 is in the folded state 121 a. In addition, a step structure may be formed at the connection of the first folding portion 12131 and the grip portion 1211.

When the helical telescopic unit 121 is in the folded state 121a, the adaptor portion 1212 may be sandwiched between two adjacent handheld portions 1211, and the handheld portions 1211 protrudes in a direction away from the axis L relative to the adaptor portion 1212. For example, when the second helical telescopic unit 12102 is in the folded state 121a, the adaptor 1212 of the second helical telescopic unit 12102 may be interposed between the handle 1211 of the first helical telescopic unit 12101 and the handle 1211 of the second helical telescopic unit 12102.

Therefore, when the spiral telescopic units 121 are in the folded state 121a, a U-shaped groove structure may be formed between two adjacent spiral telescopic units 121, so that the user can conveniently identify the folded position of the spiral telescopic mechanism 12, and the user can conveniently perform the unfolding action. It can be understood that when the state of the helical telescopic unit 121 is switched, the outer diameter of the adaptor 1212 is not changed.

Correspondingly, in the same spiral telescopic unit 121, a first force-bearing surface 12111 is formed on a side of the handheld portion 1211 close to the adapting portion 1212, a second force-bearing surface 12112 is formed on a side of the handheld portion 1211 away from the adapting portion 1212, and the first force-bearing surface 12111 is parallel to the second force-bearing surface 12112.

When it is required to unfold or fold the helical telescopic unit 121, the user's fingers may act on the first and second force-bearing surfaces 12111 and 12112 to fold or unfold the first and second folds 12131 and 12132. Illustratively, when it is desired to unfold the second helical telescopic unit 12102, the user's fingers may act on the first force-bearing surface 12111 of the second helical telescopic unit 12102 and the second force-bearing surface 12112 of the first helical telescopic unit 12101 from the U-shaped groove structure position to unfold and separate the first fold 12131 and the second fold 12132 in the second helical telescopic unit 12102.

As shown in fig. 3 and 6, in some embodiments, the number of the helical telescopic units 121 may be set as desired. Illustratively, the helical telescoping mechanism 12 may include two, three, four, etc. helical telescoping units 121.

As shown in fig. 7, in some embodiments, when the screw jack 12 is in the extended state 12b, the folding mark width n and the screw pitch m of the screw jack 12 satisfy,illustratively, the ratio of the fold line width n to the pitch m of the jack screw 12 may be 1:3, 4:9, 1:2, 5:9, 2:3, etc. Therefore, the number of the spiral telescopic units 121 can be adapted to the height of the water tank 10, the number of the spiral telescopic units 121 is reasonable, and the volume of the accommodating cavity 10a can be changed continuously.

As shown in fig. 4, 11 to 13, in some embodiments, the water supply device 100 further includes a water pipe 20. The water delivery pipe 20 is spirally arranged in the water tank 10.

As shown in fig. 5 and 8, in some embodiments, the hand-held portion 1211 has an insertion groove 12113, and the insertion groove 12113 is located at a side of the hand-held portion 1211 close to the accommodating cavity 10 a. In the embodiment, the embedded slots 12113 of the adjacent spiral telescopic units 121 are communicated, that is, a spiral groove structure is formed on one side of the spiral telescopic mechanism 12 close to the accommodating cavity 10 a. Wherein, the insertion groove 12113 near one end of the bottom case 13 communicates with the inside of the bottom case 13.

Each part of the water pipe 20 may be continuously embedded in each of the embedding grooves 12113, and each part of the water pipe 20 may be fixed in the embedding groove 12113. Illustratively, the water pipe 20 and the embedding groove 12113 may be fixed by gluing, limiting and clamping, etc. to prevent the water pipe 20 from being separated from the embedding groove 12113 at the corresponding position.

As shown in fig. 12 and 13, it can be understood that the water duct 20 is spirally arranged in the water tank 10, and may take a spring-like structure. Therefore, the water pipe 20 can also be correspondingly contracted and expanded along with the contraction action and the expansion action of the spiral telescopic mechanism 12, and the problem of pulling the water pipe 20 is avoided. Accordingly, while the water pipe 20 can smoothly draw the cleaning liquid from the water tank 10, the protection effect on the water pipe 20 can be ensured, and the risk of breakage of the water pipe 20 or separation from the host 200 can be reduced.

As shown in fig. 3 and 4, in some embodiments, water duct 20 may include a water inlet end 20a and a water outlet end 20 b. The water inlet end 20a is disposed near one end of the bottom case 13, and the water inlet end 20a is communicated with the inside of the bottom case 13. Correspondingly, the water outlet end 20b may be disposed near one end of the connecting tube 11.

Referring to fig. 2, in one embodiment, the outlet end 20b can be connected to a first connector 21 for connecting to the host 200. Correspondingly, the main unit 200 is provided with a second connection nozzle 201 in a protruding manner at one end for connecting the water tank 10, and the second connection nozzle 201 is communicated with the input end of the water pump. When the water tank 10 is connected to the main body 200, the first connection nozzle 21 may be connected to the second connection nozzle 201 to communicate the water supply device 100 with the water pump in the main body 200.

In the prior art, a direct-insert water pipe or a soft water pipe with enough length is usually arranged, and when the direct-insert water pipe is arranged, when the volume of the variable-volume water tank is changed, the water pipe cannot be ensured to contact the bottom of the variable-volume water tank. When setting up the long enough hose, the hose can twine in the water tank and tie a knot to influence the water supply effect, bring inconvenience for user's use.

In the present application, the water pipe 20 is spirally embedded in the water tank 10 and fixed in the embedding groove 12113, so that on one hand, when the volume of the water tank 10 is adjusted, the water inlet end 20a of the water pipe 20 is always positioned at the bottom of the water tank 10, so as to smoothly supply the cleaning liquid in the water tank 10 to the nozzle 300. On the other hand, the water supply effect can be prevented from being influenced by winding and knotting of the water pipe 20 in the water tank 10, and the water pipe 20 can be protected correspondingly.

In summary, the oral cleaning device provided by the present application has the water supply device 100 with a continuously variable volume, and can ensure that the cleaning liquid is smoothly supplied to the nozzle 300, thereby avoiding the problem that the water pipe 20 is broken or separated from the main body 200.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.