Water pick

Abstract

The utility model discloses an oral irrigator which comprises a shell and a water tank, the water tank is connected with the shell, the water tank and the shell jointly define a liquid storage space, an air hole is formed in one of the shell and the water tank, and the liquid storage space is communicated with the outside of the oral irrigator through the air hole. The inner circumferential area of the side, close to the center of one of the shell and the water tank, of the air hole is larger than the inner circumferential area of the side, away from the center of one of the shell and the water tank, of the air hole. According to the oral irrigator disclosed by the utility model, liquid in the liquid storage space smoothly flows out, so that the use convenience is improved, the liquid is prevented from flowing out from the air hole, and the frequency of adding the liquid is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oral irrigators, and in particular to an oral irrigator. Background Technology

[0002] A water flosser is a device used for oral care. It uses pressure to spray a stream of water from the nozzle to clean the user's mouth. Water flossers are widely used in people's daily lives.

[0003] In related technologies, during the use of a water flosser, the internal pressure of the water flosser gradually increases, making it difficult for the liquid inside the water flosser to be sprayed out normally, which increases the difficulty of using the water flosser and makes it inconvenient to use. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a dental flosser that allows liquid in the reservoir to flow out smoothly, improving ease of use and preventing liquid from flowing out of the vent, thus reducing the frequency of liquid refilling.

[0005] A water flosser according to an embodiment of the present invention includes: a housing; a water tank connected to the housing, the water tank and the housing jointly defining a liquid storage space, a vent hole formed on one of the housing and the water tank, the liquid storage space communicating with the outside of the water flosser through the vent hole, and the inner circumferential area of ​​the vent hole on the side closer to the center of the one of the housing and the water tank being larger than the inner circumferential area of ​​the vent hole on the side farther from the center of the one of the housing and the water tank.

[0006] According to this utility model, the water flosser has a vent that connects the liquid storage space to the outside of the water flosser. This effectively ensures that the liquid in the storage space flows smoothly from the nozzle to the outside of the water flosser for an extended period, improving the ease of use and enhancing the user experience. Furthermore, the vent structure not only improves the smoothness of air entering the liquid storage space, ensuring normal operation of the water flosser, but also prevents liquid from flowing out through the vent, thus improving the stability of the water flosser and reducing the frequency of liquid refills.

[0007] According to some embodiments of this utility model, the vent is formed on the side wall of the housing, and the inner circumferential area of ​​the vent near the center of the housing is S1, wherein S1 satisfies: 0.5mm. 2 ≤S1≤0.9mm 2 ; and / or, the inner circumferential area of ​​the vent hole on the side furthest from the center of the housing is S2, wherein S2 satisfies: 3mm2 ≤S2≤6mm 2 .

[0008] According to some embodiments of this utility model, the inner circumferential area of ​​the vent hole gradually increases from the inside to the outside along the thickness direction of the shell.

[0009] According to some embodiments of the present invention, the inner wall surface of the vent hole is formed as a curved surface.

[0010] According to some embodiments of the present invention, the housing includes: a first housing, on which a mating groove is formed, one end of the water tank facing the housing is fitted into the mating groove, and the vent hole is formed on the side wall of the mating groove; and a second housing, which is disposed on the outer periphery of the first housing.

[0011] According to some embodiments of the present invention, the water tank is connected to one end of the shell in the height direction, and there is a gap between the side of the water tank facing the shell and one end face of the shell, and the vent hole communicates with the liquid storage space through the gap.

[0012] According to some embodiments of the present invention, the gap and the vent hole are opposite to each other along the thickness direction of the shell.

[0013] According to some embodiments of the present invention, the gaps and the vent holes are arranged alternately along the thickness direction of the shell.

[0014] According to some embodiments of the present invention, the height of the gap is L, wherein L satisfies: 0.12mm≤L≤0.16mm; and / or, the height of the gap is L, and the height of the vent hole near the center of the shell along the height direction of the shell is H, wherein L and H satisfy: 0.13≤L / H≤0.17.

[0015] According to some embodiments of the present invention, a sealing element is provided between the water tank and the shell.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a water flosser according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of a water flosser according to an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Enlarged view of part A shown in the center circle;

[0021] Figure 4 This is a schematic diagram of the first housing of a water flosser according to an embodiment of the present invention.

[0022] Figure label:

[0023] 100. Water flosser;

[0024] 1. Shell; 11. First shell; 111. Vent hole; 112. Mating groove; 12. Second shell;

[0025] 2. Water tank; 21. Liquid storage space; 22. Gap; 23. Groove; 24. Fitting part;

[0026] 3. Seals; 4. Nozzles. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-4 Describes a water flosser 100 according to an embodiment of the present invention.

[0028] like Figures 1-3 As shown, the oral irrigator 100 according to an embodiment of the present invention includes a housing 1 and a water tank 2.

[0029] Specifically, the water tank 2 is connected to the shell 1, and the water tank 2 and the shell 1 together define the liquid storage space 21. A vent 111 is formed on one of the shell 1 and the water tank 2. The liquid storage space 21 is connected to the outside of the oral irrigator 100 through the vent 111. The inner circumferential area of ​​the vent 111 on the side closer to the center of one of the shell 1 and the water tank 2 is greater than the inner circumferential area of ​​the vent 111 on the side farther away from the center of one of the shell 1 and the water tank 2.

[0030] For example, in Figure 1-3 In the example, the upper part of the water tank 2 is connected to the lower part of the shell 1. The liquid storage space 21 is located inside the water tank 2 and the shell 1. The vent 111 is formed on the shell 1 or the water tank 2, and can be specifically set according to the actual use to meet the actual needs. When the vent 111 is formed on the shell 1, the inner circumferential area of ​​the vent 111 on the side closer to the center of the shell 1 is larger than the inner circumferential area of ​​the vent 111 on the side farther from the center of the shell 1. When the vent 111 is formed on the water tank 2, the inner circumferential area of ​​the vent 111 on the side closer to the center of the water tank 2 is larger than the inner circumferential area of ​​the vent 111 on the side farther from the center of the water tank 2.

[0031] During the use of the water flosser 100, the liquid in the reservoir 21 gradually flows out of the water flosser 100, increasing the pressure inside the reservoir 21. The vent 111 connects the reservoir 21 to the outside of the water flosser 100, ensuring that the pressure inside the reservoir 21 matches the pressure outside the water flosser 100. This allows the liquid in the reservoir 21 to flow smoothly from the nozzle 4 of the water flosser 100 to the outside of the water flosser 100 for an extended period, extending the lifespan of the water flosser 100, improving its ease of use, and enhancing the user experience. Furthermore, in Figure 2 and Figure 3 In the example, the inner circumferential area on the right side of the vent 111 is larger than that on the left side. When air from outside the water flosser 100 enters the liquid storage space 21, it flows from the right side of the vent 111 along the sidewall to the left side before entering the liquid storage space 21. This facilitates the smooth entry of air into the liquid storage space 21, maintaining air pressure balance and ensuring the water flosser 100 can be used normally for extended periods. Furthermore, the smaller inner circumferential area on the side of the vent 111 closest to the liquid storage space 21, due to surface tension, hinders liquid from entering the vent 111, thus preventing liquid from flowing out of the liquid storage space 21 and improving the stability of the water flosser 100. Additionally, a larger amount of liquid can be stored in the liquid storage space 21, reducing the frequency of adding liquid to the water flosser 100 and improving the user experience.

[0032] According to the oral irrigator 100 of this utility model, the vent 111 connects the liquid storage space 21 with the outside of the oral irrigator 100, effectively ensuring that the liquid in the liquid storage space 21 flows normally from the nozzle 4 of the oral irrigator 100 to the outside of the oral irrigator 100 for a long time, improving the ease of use of the oral irrigator 100 and enhancing the user experience. Furthermore, the vent 111 structure not only improves the smoothness of air entering the liquid storage space 21, allowing the oral irrigator 100 to function normally, but also prevents the liquid in the liquid storage space 21 from flowing out of the vent 111 to the outside of the oral irrigator 100, improving the stability of the oral irrigator 100 and reducing the frequency of adding liquid.

[0033] According to some embodiments of this utility model, a vent 111 is formed on the side wall of the housing 1, and the inner circumferential area of ​​the vent 111 near the center of the housing 1 is S1, wherein S1 satisfies: 0.5 mm 2 ≤S1≤0.9mm 2 ; and / or, the inner circumferential area of ​​the side of the vent 111 away from the center of the shell 1 is S2, where S2 satisfies: 3mm 2 ≤S2≤6mm 2 .

[0034] According to some other embodiments of the present invention, refer to Figures 2-4 A vent 111 is formed on the side wall of the housing 1. The inner circumferential area of ​​the vent 111 on the side closest to the center of the housing 1 is S1, where S1 satisfies: 0.5 mm. 2 ≤S1≤0.9mm 2 .

[0035] For example, in Figures 2-4 In the example, a vent 111 is formed at the lower end of the housing 1. The inner circumferential area on the right side of the vent 111 is S1. When the inner circumferential area S1 of the vent 111 near the center of the housing 1 is less than 0.5 mm... 2 When S1 is small, the circumferential edge of the vent 111 near the center of the housing 1 obstructs air entry, reducing the smoothness of air passage and thus reducing the smoothness of liquid flow from the nozzle 4 within the storage space 21, thereby reducing the performance of the oral irrigator 100. When the inner circumferential area S1 of the vent 111 near the center of the housing 1 is greater than 0.9 mm... 2 When S1 is large, the area where the vent 111 connects to the liquid storage space 21 is large. When there is a lot of liquid in the liquid storage space 21, the liquid in the liquid storage space 21 is easy to flow out through the vent 111, which makes it inconvenient to store a lot of liquid in the liquid storage space 21, increases the frequency of adding liquid to the liquid storage space 21, and reduces the ease of use.

[0036] Therefore, by setting the vent hole 111 such that the inner circumferential area S1 on the side near the center of the housing 1 satisfies: 0.5mm. 2 ≤S1≤0.9mm 2 The vent 111 is reasonably positioned, reducing the obstruction of air entry by the circumferential edge of the vent 111 near the center of the housing 1, thus improving the smoothness of air passage. This, in turn, improves the smoothness of liquid flow from the nozzle 4 into the liquid storage space 21, enhancing the performance of the oral irrigator 100. Furthermore, the reduced area at the connection between the vent 111 and the liquid storage space 21 prevents liquid from flowing out through the vent 111 when there is a large amount of liquid in the liquid storage space 21. This facilitates the storage of a larger amount of liquid in the liquid storage space 21, reduces the frequency of adding liquid to the liquid storage space 21, and improves ease of use.

[0037] According to some other embodiments of the present invention, referring to Figures 2-4 Vent hole 111 is formed on the side wall of shell 1. The inner circumferential area of ​​the side of vent hole 111 away from the center of shell 1 is S2, where S2 satisfies: 3mm 2 ≤S2≤6mm 2 For example, in Figures 2-4In the example, a vent 111 is formed at the lower end of the housing 1. The inner circumferential area on the left side of the vent 111 is S2. When the inner circumferential area S2 of the side of the vent 111 away from the center of the housing 1 is less than 3 mm... 2 When S2 is small, the circumferential edge of the vent 111 on the side away from the center of the housing 1 obstructs air entry when air enters the liquid storage space 21, reducing the smoothness of air passage and thus reducing the smoothness of liquid flow from the nozzle 4 in the liquid storage space 21, thereby reducing the performance of the oral irrigator 100. When the inner circumferential area S2 of the vent 111 on the side away from the center of the housing 1 is greater than 6 mm... 2 When S2 is larger, it increases the area occupied by the left side of the vent 111 on the shell 1, reducing the structural strength of the shell 1.

[0038] Therefore, by setting the vent hole 111 to be formed on the side wall of the housing 1, the inner circumferential area S2 of the vent hole 111 on the side away from the center of the housing 1 satisfies: 3mm. 2 ≤S2≤6mm 2 At the same time, the vent 111 is reasonably positioned, reducing the obstruction of air entry by the circumferential edge of the vent 111 on the side away from the center of the housing 1, improving the smoothness of air passage, thereby improving the smoothness of liquid flow from the nozzle 4 in the liquid storage space 21, and improving the performance of the oral irrigator 100. In addition, the area occupied by the left side of the vent 111 on the housing 1 is reduced, improving the structural strength of the housing 1.

[0039] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 Along the thickness direction of the shell 1, from the inside out, the inner circumferential area of ​​the vent 111 gradually increases. For example, in Figure 2 and Figure 3 In the example, the cross-sectional area of ​​the vent 111 gradually increases from right to left. This arrangement improves the stress on the housing 1, thereby increasing the structural strength of the housing 1 and extending its service life.

[0040] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The inner wall surface of the vent 111 is formed as a curved surface. For example, in Figure 3 and Figure 4 In the example, the vent 111 is roughly frustum-shaped. This design increases the smoothness of air passage, reduces air resistance and turbulence, and further facilitates the smooth flow of fluid from the nozzle 4. Furthermore, it reduces the machining difficulty of the vent 111, thereby improving its production efficiency.

[0041] According to some embodiments of this utility model, refer to Figures 2-4The housing 1 includes a first housing 11 and a second housing 12. A mating groove 112 is formed on the first housing 11. The end of the water tank 2 facing the housing 1 is fitted into the mating groove 112. A vent 111 is formed on the side wall of the mating groove 112. The second housing 12 is located on the outer periphery of the first housing 11.

[0042] For example, in Figures 2-4 In the example, the mating groove 112 is formed at the lower end of the first housing 11, the upper end of the water tank 2 fits into the mating groove 112, the vent 111 penetrates the side wall of the mating groove 112, and the second housing 12 is fitted onto the outer periphery of the first housing 11. This arrangement allows the second housing 12 to cover the vent 111, thereby improving the aesthetics of the water flosser 100 and enhancing the user's visual experience. Furthermore, the irregular shape of the first housing 11 supports internal components of the water flosser 100 (such as the battery), thus improving the stability of the water flosser 100 during use. In addition, the mating groove 112 facilitates the assembly of the housing 1 and the water tank 2, thereby improving the assembly efficiency of the water flosser 100. Additionally, the location of the vent 111 at the upper part of the liquid storage space 21 further effectively prevents liquid from flowing out of the vent 111, improving the stability of the water flosser 100 during use. The water tank 2 includes a mating part 24, which is formed at the upper end of the water tank 2 and fits into the mating groove 112, so that the water tank 2 can fit into the shell 1.

[0043] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The height direction of water tank 2 and shell 1 (e.g.) Figure 2 The two sides of the tank 2 (shown as opposite directions) are connected to each other. There is a gap 22 between the side of the tank 2 facing the shell 1 and the end face of the shell 1. The vent 111 is connected to the liquid storage space 21 through the gap 22.

[0044] For example, in Figure 2 and Figure 3In the example, the water tank 2 is connected to the lower end of the housing 1. A gap 22 exists between the upper side of the water tank 2 and the lower end face of the housing 1, that is, a gap 22 exists between the top side of the water tank 2 and the top wall of the mating groove 112. The gap 22 is located between the vent 111 and the liquid storage space 21. This arrangement effectively ensures communication between the vent 111 and the liquid storage space 21, allowing air to pass through and making the external pressure of the water flosser 100 consistent with the pressure inside the liquid storage space 21. This, in turn, allows the liquid in the liquid storage space 21 to flow out smoothly, improving ease of use and enabling the water flosser 100 to operate normally for extended periods. Furthermore, the gap 22 further reduces the vertical distance between the vent 111 and the liquid storage space 21, effectively preventing the liquid in the liquid storage space 21 from flowing out along the gap 22 and the vent 111 under the action of liquid surface tension, thus improving the operational stability of the water flosser 100.

[0045] According to some embodiments of this utility model, the gap 22 and the vent 111 are opposite to each other along the thickness direction of the housing 1 (not shown in the figure). For example, the gap 22 and the vent 111 are opposite to each other in the left-right direction, that is, the gap 22 does not block the vent 111 in the left-right direction, which improves the smoothness of air passage and the smoothness of liquid flowing out of the nozzle 4 in the liquid storage space 21, thereby improving the user experience.

[0046] According to some embodiments of this utility model, refer to Figure 3 The gap 22 and the vent 111 are staggered along the thickness direction of the shell 1. For example, in 2 and Figure 3 In the example, the gap 22 and the vent 111 are staggered in the left-right direction, that is, along the thickness direction of the shell 1, the gap 22 blocks the part of the vent 111 near the center of the shell 1. This arrangement ensures that air can pass smoothly through the vent 111 and the gap 22, while further preventing the liquid in the liquid storage space 21 from flowing out along the gap 22 and the vent 111, thus allowing the oral irrigator 100 to be used normally for a long time.

[0047] According to some embodiments of this utility model, refer to Figure 3 The height of gap 22 is L, where L satisfies: 0.12mm≤L≤0.16mm; and / or, the height of gap 22 is L, and the height of the vent hole 111 near the center of shell 1 along the height direction of shell 1 is H, where L and H satisfy: 0.13≤L / H≤0.17.

[0048] According to some other embodiments of the present invention, refer to Figure 3 The height of gap 22 is L, where L satisfies: 0.12mm ≤ L ≤ 0.16mm. For example, in Figure 3In the example, when the height L of gap 22 is less than 0.12 mm, the height of gap 22 is small, reducing the smoothness of airflow through gap 22, thereby reducing the smoothness of liquid flow from nozzle 4 in the liquid storage space 21 and reducing the performance of the water flosser 100. When the height L of gap 22 is greater than 0.16 mm, the height of gap 22 is large, and liquid in the liquid storage space 21 is more likely to flow out from gap 22 along vent hole 111, thereby reducing the stability of the water flosser 100. Therefore, by setting the height L of gap 22 to satisfy: 0.12 mm ≤ L ≤ 0.16 mm, the gap 22 is reasonably set, increasing the smoothness of airflow through gap 22, thereby improving the smoothness of liquid flow from nozzle 4 in the liquid storage space 21 and improving the performance of the water flosser 100. In addition, it also reduces the probability of liquid in the liquid storage space 21 flowing out from gap 22 along vent hole 111, thereby improving the stability of the water flosser 100.

[0049] According to some other embodiments of the present invention, referring to Figure 3 The height of gap 22 is L, and the height of the vent 111 near the center of shell 1 along the height direction of shell 1 is H. L and H satisfy: 0.13 ≤ L / H ≤ 0.17. For example, in... Figure 2 and Figure 3 In the example, the height of the right side of the vent 111 is H. When L / H is less than 0.13, the height of the gap 22 is small, reducing the smoothness of air passing through the gap 22, thereby reducing the smoothness of liquid flowing out of the nozzle 4 from the liquid storage space 21, and reducing the performance of the water flosser 100. When L / H is greater than 0.17, the height of the gap 22 is large, and the liquid in the liquid storage space 21 is more likely to flow out of the gap 22 along the vent 111, thereby reducing the stability of the water flosser 100. Therefore, by setting L and H to satisfy: 0.13≤L / H≤0.17, the gap 22 is reasonably set, increasing the smoothness of air passing through the gap 22, thereby improving the smoothness of liquid flowing out of the nozzle 4 from the liquid storage space 21, and improving the performance of the water flosser 100. In addition, it also reduces the probability of liquid in the liquid storage space 21 flowing out of the gap 22 along the vent 111, thereby improving the stability of the water flosser 100.

[0050] According to some embodiments of this utility model, refer to Figure 2 Hehe Figure 3 A sealing element 3 is provided between the water tank 2 and the shell 1. For example, in Figure 2 and Figure 3In the example, the seal 3 is located between the side wall of the mating groove 112 and the outer periphery of the upper end of the water tank 2. This arrangement improves the stability and sealing of the mating between the water tank 2 and the housing 1, preventing liquid in the storage space 21 from flowing out along the mating area between the water tank 2 and the housing 1, thereby improving the operational stability of the water flosser 100. A groove 23 is formed on the outer periphery of the upper end of the water tank 2, and the seal 3 is fitted within the groove 23, thus improving the stability of the mating between the seal 3 and the water tank 2 and preventing the seal 3 from detaching from the water tank 2. Furthermore, the groove 23 limits the position of the seal 3, preventing it from sliding downwards during the assembly of the housing 1 and the water tank 2, further improving the operational stability of the seal 3.

[0051] Other configurations and operations of the oral irrigator 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An oral irrigator characterized by, include: case; A water tank is connected to the housing, and the water tank and the housing together define a liquid storage space. A vent is formed on one of the housing and the water tank. The liquid storage space communicates with the outside of the oral irrigator through the vent. The inner circumferential area of ​​the vent near the center of the one of the housing and the water tank is larger than the inner circumferential area of ​​the vent away from the center of the one of the housing and the water tank.

2. The waterpik of claim 1, wherein, The air vent is formed on the side wall of the shell, and the inner peripheral area of the air vent on the side close to the center of the shell is S1, wherein the S1 satisfies: 0.5mm 2 ≤ S1 ≤ 0.9mm 2 ; and / or, An inner peripheral area of the air vent on a side away from the center of the housing is S2, wherein the S2 satisfies: 3mm 2 ≤ S2 ≤ 6mm 2 .

3. The oral irrigator according to claim 1, characterized in that, Along the thickness direction of the shell, from the inside out, the inner circumferential area of ​​the vent gradually increases.

4. The waterpik of claim 1, wherein, The inner wall surface of the vent is formed as a curved surface.

5. The waterpik of claim 1, wherein, The housing includes: A first housing has a mating groove formed thereon, one end of the water tank facing the housing is fitted into the mating groove, and the vent is formed on the side wall of the mating groove. The second housing is disposed on the outer periphery of the first housing.

6. The waterpik of claim 1, wherein, The water tank is connected to one end of the shell in the height direction. There is a gap between the side of the water tank facing the shell and one end face of the shell. The vent hole communicates with the liquid storage space through the gap.

7. The oral irrigator of claim 6, wherein, The gap and the vent are opposite to each other along the thickness direction of the shell.

8. The oral irrigator of claim 6, wherein, The gaps and the vent holes are arranged alternately along the thickness direction of the shell.

9. The oral irrigator of claim 6, wherein, The height of the gap is L, wherein L satisfies: 0.12mm ≤ L ≤ 0.16mm; and / or, The height of the gap is L, and the height of the vent hole near the center of the shell along the height direction of the shell is H. L and H satisfy: 0.13≤L / H≤0.

17.

10. The oral irrigator of any one of claims 1-9, wherein, A sealing element is provided between the water tank and the shell.

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