Duckbill valve and oral irrigator

Abstract

The application provides a duckbill valve and a water pick applying the same. The water outlet direction of the duckbill valve is a first direction. The duckbill valve comprises a contraction part. In the first direction, the contraction part gradually contracts and sequentially has a widest end and a narrowest end. The contraction part comprises two outer inclined surfaces connecting the widest end and the narrowest end. In the first direction, the distance between the two outer inclined surfaces gradually decreases. The two outer inclined surfaces are both provided with reinforcing ribs. The reinforcing ribs extend on the outer inclined surfaces from the widest end to the narrowest end. In the application, the reinforcing ribs are arranged on the outer inclined surfaces, the impact resistance of the inclined surfaces is greatly improved, the closing performance of the water outlet in a natural state is effectively improved, the duckbill valve is more durable, and compared with the scheme of improving the thickness of the inclined surfaces as a whole, the cost of the material can be further reduced.

Description

Technical Field

[0001] This application relates to the technical field of oral irrigators, and more particularly to a duckbill valve and an oral irrigator. Background Technology

[0002] The duckbill valve is made of a flexible material and is shaped like a duck's bill, hence the name. When there is no internal pressure, the outlet of the duckbill valve automatically closes due to its elasticity; as the internal pressure gradually increases, the outlet gradually widens, allowing liquid to be discharged at a high flow rate.

[0003] The duckbill valve used in water flossers is relatively small and has the following drawbacks in the existing technology: its gradually contracting slope is easily broken under high pressure, and the closure of the outlet also needs to be improved.

[0004] Therefore, it is necessary to provide a duckbill valve with better impact resistance and closure performance, as well as a dental flosser that uses the duckbill valve. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a duckbill valve with better impact resistance and closure performance, and a dental flosser using the duckbill valve.

[0006] According to the embodiments of this utility model, the first embodiment is provided as follows: a duckbill valve, wherein the water outlet direction of the duckbill valve is a first direction, the duckbill valve includes a contraction part, and along the first direction, the contraction part gradually contracts and sequentially has a widest end and a narrowest end, the contraction part includes two outer inclined surfaces connecting the widest end and the narrowest end, and along the first direction, the distance between the two outer inclined surfaces gradually decreases, and reinforcing ribs are provided on both outer inclined surfaces, and the reinforcing ribs extend from the widest end to the narrowest end on the outer inclined surfaces.

[0007] In a preferred embodiment, the reinforcing rib is centrally located on the outer inclined surface.

[0008] In a preferred embodiment, the duckbill valve further includes a water outlet connected to the constriction portion. The water outlet is located on the side of the narrowest end away from the widest end, and the width of the water outlet remains unchanged along the first direction. The water outlet includes a water outlet surface located at the end of the water outlet away from the constriction portion, and the water outlet surface has a water outlet.

[0009] In a preferred embodiment, the water outlet includes two oppositely arranged side connecting surfaces, the side connecting surfaces being parallel to a first direction, and each side connecting surface being connected to an outer inclined surface, and each side connecting surface also being connected to a reinforcing rib.

[0010] In a preferred embodiment, the contraction portion further includes two inner inclined surfaces connecting the widest end and the narrowest end, the distance between the two inner inclined surfaces gradually decreasing along a first direction, and the contraction portion further includes an inner tangent surface connecting the two inner inclined surfaces, with the outlet located on the inner tangent surface.

[0011] In a preferred embodiment, the inner inclined surface is parallel to the corresponding outer inclined surface, and the included angle between the two outer inclined surfaces is 60°.

[0012] In a preferred embodiment, the width of the inner tangent surface is denoted as d, and the width of the water outlet surface is denoted as D, satisfying the relationship: 1 / 4D≤d1≤3 / 4D.

[0013] In a preferred embodiment, the duckbill valve further includes a first cylindrical portion connected to the side of the widest end of the constricted portion opposite to the narrowest end.

[0014] In a preferred embodiment, the duckbill valve further includes a second cylindrical portion connected to the side of the first cylindrical portion away from the contraction portion. The second cylindrical portion has the same inner diameter as the first cylindrical portion, and the outer diameter of the second cylindrical portion is larger than that of the first cylindrical portion.

[0015] This utility model also provides a dental flosser, which includes the duckbill valve described in any of the above embodiments.

[0016] This utility model has the following beneficial effects:

[0017] In the solution of this application, by setting reinforcing ribs on the outer slope, the impact resistance of the slope is greatly improved, and the closing performance of the outlet in the natural state can be effectively improved, making the duckbill valve more durable. Compared with the solution of increasing the overall thickness at the slope, this solution can further reduce the material cost. Attached Figure Description

[0018] Figure 1 This is a perspective view of a duckbill valve according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the duckbill valve according to an embodiment of the present invention;

[0020] Figure 3 for Figure 2 The enlarged view above.

[0021] Reference numerals: 10, contraction section; 1a, widest end; 1b, narrowest end; 11, outer bevel; 12, reinforcing rib; 13, inner bevel; 14, inner tangent; 20, water outlet; 21, water outlet surface; 22, water outlet; 23, side connecting surface; 30, first cylindrical section; 40, second cylindrical section; F1, first direction; Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] Please refer to Figures 1-3 An embodiment of this utility model provides a duckbill valve. The water outlet direction of the duckbill valve is a first direction F1. The duckbill valve includes a contraction part 10. Along the first direction F1, the contraction part 10 gradually contracts and has a widest end 1a and a narrowest end 1b in sequence. The contraction part 10 includes two outer inclined surfaces 11 connecting the widest end 1a and the narrowest end 1b. Along the first direction F1, the distance between the two outer inclined surfaces 11 gradually decreases. Each of the two outer inclined surfaces 11 is provided with a reinforcing rib 12, and the reinforcing rib 12 extends from the widest end 1a to the narrowest end 1b on the outer inclined surface 11.

[0028] In this embodiment, by providing reinforcing ribs 12 on the outer inclined surface 11, the impact resistance of the inclined surface is greatly improved, and the closing performance of the outlet 22 in its natural state can be effectively improved, making the duckbill valve more durable. Compared with the solution of increasing the overall thickness at the inclined surface, this solution can further reduce the material cost.

[0029] In a preferred embodiment, only one reinforcing rib 12 is provided on each outer inclined surface 11, and the reinforcing rib 12 is centrally located on the outer inclined surface 11. This design is relatively simple and elegant, and saves on material costs.

[0030] In a preferred embodiment, the duckbill valve further includes a water outlet 20, which is connected to the contraction section 10. The water outlet 20 is located on the side of the narrowest end 1b of the contraction section 10 away from the widest end 1a, and the width of the water outlet 20 remains unchanged along the first direction F1. The water outlet 20 includes a water outlet surface 21, which is located on the end of the water outlet 20 away from the contraction section 10, and the water outlet surface 21 has a water outlet 22.

[0031] In this embodiment, the closing effect of the water outlet 22 in its natural state can be further improved after the water outlet 20 is provided.

[0032] Furthermore, the water outlet 20 includes two side connecting surfaces 23, which are arranged opposite to each other. The side connecting surfaces 23 are parallel to the first direction F1, and each side connecting surface 23 is connected to an outer inclined surface 11 and a reinforcing rib 12.

[0033] In this embodiment, the reinforcing rib 12 is connected to both the outer inclined surface 11 and the side connecting surface 23, which can effectively improve the stability of the connection between the contraction part 10 and the water outlet 20, and further improve the closure of the water outlet 22 in its natural state.

[0034] In one feasible embodiment, the contraction portion 10 further includes two inner inclined surfaces 13, which connect the widest end 1a and the narrowest end 1b, and the distance between the two inner inclined surfaces 13 gradually decreases along the first direction F1.

[0035] It should be noted that in the actual production of existing duckbill valves, the outlet 22 is usually formed by cutting at the intersection of the two inner inclined surfaces 13 with a tool. However, if the cutting position of the tool is slightly off, it will affect the closing effect of the outlet 22 in its natural state, regardless of which inner inclined surface 13 it cuts on, thus affecting the quality of the product and causing product scrapping and material waste.

[0036] In a preferred embodiment, to reduce the precision requirements of the cutting position of the tool, the shrinkage portion 10 further includes an inner tangent surface 14 for cutting. The inner tangent surface 14 connects two inner inclined surfaces 13, and the outlet 22 is located on the inner tangent surface 14. In this embodiment, because the inner tangent surface 14 is provided, as long as the tool cuts within the range of the inner tangent surface 14, it will not affect the closing effect of the outlet 22 in its natural state, thereby reducing the precision requirements of the tool cutting and effectively reducing the scrap rate of the product.

[0037] In a preferred embodiment, the inner inclined surface 13 is parallel to the corresponding outer inclined surface 11, the thickness of the contraction portion 10 is relatively uniform, the included angle between the two outer inclined surfaces 11 is 60°, and the water discharge effect is better.

[0038] In a preferred embodiment, reference may be made to Figure 3 The width of the inner tangent surface 14 is denoted as d1, and the width of the water outlet surface 21 is denoted as D1, satisfying the relationship: 1 / 4D1≤d1≤3 / 4D1. Within this range, the water outlet 22 will not be too deep, thus affecting the water output effect, and the precision requirements for tool cutting can be reduced as much as possible, thereby reducing the scrap rate of the product.

[0039] In a preferred embodiment, the duckbill valve further includes a first cylindrical portion 30, which is connected to the side of the widest end 1a of the contraction portion 10 away from the narrowest end 1b.

[0040] Furthermore, the duckbill valve also includes a second cylindrical portion 40, which is connected to the side of the first cylindrical portion 30 away from the contraction portion 10. The inner diameter of the second cylindrical portion 40 is equal to that of the first cylindrical portion 30, and the outer diameter of the second cylindrical portion 40 is larger than that of the first cylindrical portion 30, which facilitates the connection and installation of the duckbill valve.

[0041] One embodiment of this utility model also provides a dental flosser, which includes the duckbill valve in any of the above embodiments.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A duckbill valve, characterized in that, The water outlet direction of the duckbill valve is a first direction. The duckbill valve includes a contraction part. Along the first direction, the contraction part gradually contracts and has a widest end and a narrowest end in sequence. The contraction part includes two outer inclined surfaces connecting the widest end and the narrowest end. Along the first direction, the distance between the two outer inclined surfaces gradually decreases. Reinforcing ribs are provided on both outer inclined surfaces, and the reinforcing ribs extend from the widest end to the narrowest end on the outer inclined surfaces.

2. The duckbill valve according to claim 1, characterized in that, The reinforcing rib is centrally located on the outer inclined surface.

3. The duckbill valve according to claim 1, characterized in that, The duckbill valve also includes a water outlet connected to the contraction section. The water outlet is located on the side of the narrowest end away from the widest end, and the width of the water outlet remains unchanged along the first direction. The water outlet includes a water outlet surface located at the end of the water outlet away from the contraction section, and the water outlet surface has a water outlet.

4. The duckbill valve according to claim 3, characterized in that, The water outlet includes two oppositely arranged side connecting surfaces, which are parallel to the first direction. Each side connecting surface is connected to an outer inclined surface and is also connected to a reinforcing rib.

5. The duckbill valve according to claim 3, characterized in that, The contraction section further includes two inner inclined surfaces connecting the widest end and the narrowest end. Along the first direction, the distance between the two inner inclined surfaces gradually decreases. The contraction section also includes an inner tangent surface connecting the two inner inclined surfaces, and the outlet is opened on the inner tangent surface.

6. The duckbill valve according to claim 5, characterized in that, The inner inclined plane is parallel to the corresponding outer inclined plane, and the included angle between the two outer inclined planes is 60°.

7. The duckbill valve according to claim 5, characterized in that, The width of the inner tangent surface is denoted as d, and the width of the water outlet surface is denoted as D, satisfying the relationship: 1 / 4D≤d1≤3 / 4D.

8. The duckbill valve according to claim 1, characterized in that, The duckbill valve further includes a first cylindrical portion, which is connected to the side of the widest end of the contraction portion that is opposite to the narrowest end.

9. The duckbill valve according to claim 8, characterized in that, The duckbill valve further includes a second cylindrical portion, which is connected to the side of the first cylindrical portion away from the contraction portion. The inner diameter of the second cylindrical portion is equal to that of the first cylindrical portion, and the outer diameter of the second cylindrical portion is larger than that of the first cylindrical portion.

10. A dental flosser, characterized in that, The oral irrigator includes a duckbill valve as described in any one of claims 1 to 9.

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