TW201406613A - Tap of liquid storage container - Google Patents

Abstract

The present invention discloses a tap of a liquid storage container, which can truly prevent the liquid at a front end of the tap from flowing out. Even if liquid stays at the front end of the tap, it can be forced to flow back inside without dripping down outside from the front end of the tap. The tap comprises a water inpouring part, a water draining part, and a water back-flow part. The water back-flow part is disposed between the water draining part and the water inpouring part, and the depth of the water back-flow part is larger than the width of the water draining part; the area of the water back-flow part is larger than that of the water draining part; and the angle of the water back-flow part is slightly more oblique than the horizontal. As such, before filling of the liquid storage container is completed, it is hard for liquid to remain in the water draining part and water remaining in the draining part is caused to flow back to the water back-flow part due to surface tension, thereby truly preventing the dripping phenomenon caused by the liquid to flow outside from the water draining part.

Description

Spout of liquid container

The present invention relates to a liquid container having a spout configured to prevent dripping of the spout.

Generally speaking, a liquid container having a spout such as a coffee cup, a teapot or a baby bottle, and the content liquid in the liquid container may flow down from the front end of the spout along the container body at the time of injection or after the injection, thereby causing the outside of the container body and The problem of dirty on the stage. In order to prevent water droplets in the content, a manufacturer has a special design in the structure of the nozzle. For example, the technique disclosed in Japanese Patent Publication No. 49-73685 (Patent Document 1) is to provide a tray portion at a position below the front end of the nozzle. For the purpose of storing a liquid, or a technique disclosed in Japanese Patent Publication No. 62-130027 and Japanese Patent No. 10-262798 (Patent Document 2), a first-class inlet or a through hole is provided at a position below the front end of the nozzle. The inner solution flowing to the outside of the front end of the spout can be returned to the container body through the inflow port or the through hole.

In addition to the above, there are various improvements, such as Japanese Patent No. 10-8025 (Patent Document 4), No. 2007-215995 (Patent Document 5), and No. 2009-234662 (Patent Document 6) The technique is as follows: a fitting is installed at the front end of the spout to prevent the liquid from flowing outward; a small-diameter fitting having a diameter smaller than the diameter of the spout is installed, and the content liquid is absorbed from the gap with the fitting through the fitting to prevent dripping.

However, in the example disclosed in Patent Document 1, the dropped internal solution can be temporarily concentrated on the tray portion, but the content liquid attached to the tray portion must be wiped off during use, and when a large amount of the content liquid is dropped, the tray portion may not be able to be removed. Fully accommodated. Further, in the example of Patent Document 2 or Patent Document 3, in addition to the drip of the outer end portion of the inflow port or the through hole, the inside of the inflow port or the inside of the through hole is not easily cleaned, and there is a sanitary concern. In the examples of Patent Documents 4 to 6, the accessories must be installed before use, and must be removed after use. If not installed correctly, there may be leaks. Liquid sputum.

The above patent documents cannot fundamentally solve the problem of dripping water from the nozzle, that is, when the content liquid adheres to the front end portion of the nozzle, the attached content liquid may flow from the nozzle to the outside and drip, in view of the technical effects of the patent documents. Obviously, I hope to improve further.

Therefore, the problem to be solved by the present invention is to provide a nozzle structure for a liquid container, which can not only reliably block the outflow of liquid at the tip end portion of the nozzle, but also can reflow the inside of the nozzle at the front end of the nozzle, so that the content is not allowed. The liquid flows out from the front end of the nozzle.

An object of the present invention is to provide a nozzle for a liquid container, the nozzle being applied to a liquid container, comprising a water injection portion, a water drain portion and a water return portion, the water injection portion being disposed on the liquid container; The drain portion is disposed on the liquid container adjacent to the water injection portion, and when the liquid container is inclined, the solution in the liquid container flows through the water injection portion and the drain portion in sequence; the water return portion is disposed at Between the drain portion and the water injection portion, the depth of the water return portion is greater than the width of the drain portion, and the area of the water return portion is larger than the area of the drain portion, and the angle of the water return portion is inclined from the horizontal line. . Thus, before the end of the injection, the liquid flowing out of the liquid container is hard to remain in the drain portion due to the surface tension of the liquid in the water return portion, and even if the liquid remains in the drain portion, the residual liquid will follow the surface tension. Flow back to the water return portion, whereby the dripping phenomenon caused by the liquid flowing from the drain portion to the outside can be surely prevented.

For the sake of review, the reviewer can have a further understanding and understanding of the technical methods, structural features and purposes of the present invention. The embodiments are described in conjunction with the drawings, which are described in detail as follows:

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〔this invention〕

1‧‧‧Liquid container

2‧‧‧ openings

3‧‧‧ container body

4‧‧‧Removable plug

5‧‧‧ spout

6‧‧‧ grip part

7‧‧‧Water Injection Department

8‧‧‧Water return

9‧‧‧Drainage Department

10‧‧‧ upper end

11‧‧‧Bottom

12‧‧‧Simplified body

13‧‧‧ Cover

14‧‧‧First operating member

15‧‧‧Second operating member

16‧‧‧Liquid flow path exit

17‧‧‧Sloping surface

A‧‧‧depth

B‧‧‧Width

C‧‧‧contact line

X1, X2‧‧‧ horizontal lines

Y‧‧‧ vertical line

Α1, α2, α3, α4‧‧‧ tilt angle

G1, G2‧‧‧ Gravity

1 is a front view of a liquid container of the present invention; FIG. 2 is a plan view showing a liquid container of the present invention; FIG. 3 is a partially enlarged cross-sectional view of the liquid container of the present invention; and FIG. 4 is a liquid of the present invention; A schematic view of the erect state of the container; Fig. 5 is a schematic view showing the inclined state of the liquid container of the present invention; Fig. 6 is a plan view showing the state of the residual solution of the liquid container of the present invention; and Fig. 7 is a liquid of the liquid container of the present invention. Front view of the residual state.

Embodiment 1 will be described below with reference to Figs. Figure 1 shows a liquid container 1 for a coffee maker. The liquid container 1 is provided with a container body 3, a detachable plug body 4, a spout 5, and a grip portion 6. The upper portion of the container body 3 has an opening portion 2; the detachable plug body 4 is mounted on the opening portion 2; the spout 5 is disposed on one side of the opening portion 2; and the grip portion 6 is disposed opposite the nozzle portion 5 The other side.

The spout 5 of the liquid container 1 according to the present invention is provided with a water injection portion 7, a water return portion 8, and a drain portion 9, wherein the water injection portion 7 is inclined from the front end of one side to the lower side of the other side; The portion 8 is connected to the side of the water injection portion 7 and has a dish shape; the drain portion 9 is coupled to one side of the water return portion 8. In the plan view, the spout 5 is tapered from one side to the other side. The water injection portion 7, the water return portion 8, and the drain portion 9 constituting the spout 5 are inclined at different inclination angles, and the other end of the water return portion 8 connected to the water injection portion 7 is inclined downward, and the lower end portion 11 of the drain portion 9 is higher than the upper end portion. The portion 10 is inclined outward toward the outside. The detachable plug body 4 is provided with a plug body 12, a cover body 13, a first operating member 14 and a second operating member 15, wherein the plug body 12 is formed with a bottomed cylindrical shape; the cover body 13 covers the plug body 12 The upper portion; the first operating member 14 is constituted by a slightly semicircular button provided at the center of the lid body 13; and the second operating member 15 is constituted by a tongue wrench provided on the other side. When the user presses the first operation member 14 or the second operation member 15 downward, the detachable plug body 4 is in an open state. When the user keeps the opening state, the liquid container 1 is inclined to the side where the spout 5 is provided, and the content liquid stored in the container main body 3 can flow into the liquid flow path formed inside the detachable plug body 4 (not shown) Then, it flows out from the spout 5 connected to the liquid flow path outlet 16 and is then injected into the teacup.

3 and 4, the inclination angle of water spout portion 5 7 α 2 greater than water at reflux for 8 horizontal lines X1 inclined angle α 1, so that upon injection the liquid content is not scattered, if the liquid contents If the flow is scattered, the content liquid may fall from the draining section 9. Since the inclination angle α 2 of the water injection unit 7 is steeper than the inclination angle α 1 of the water return portion 8 , when the content liquid flows into the water injection unit 7 from the liquid flow path outlet 16 at the lowermost portion of the discharge port 5 , the water injection unit 7 flows into the water injection unit 7 . The flow rate of the content liquid is slowed down, thereby stabilizing the flow of the content liquid.

When the injection is completed, the content liquid remains on the inclined surface 17 of the drain portion 9, and if the last drop of the content liquid adhering to the drain portion 9 flows to the outside of the drain portion 9, it may cause The dripping water does not drip if it flows to the inside of the container body 3. The present invention is provided with a water return portion 8 connected to the upper end portion 10 of the drain portion 9, and the content liquid remaining in the drain portion 9 is attracted by the surface tension of the content liquid of the water return portion 8.

When the liquid container 1 is in an upright state, the inclination angle α 1 between the water return portion 8 and the horizontal line X1 is inclined at an angle of 10 to 30 degrees. When the inclination angle α 1 is at the end of the injection, that is, when the liquid container 1 is changed from the inclined state to the erect state, the content liquid on the water return portion 8 is maintained at a predetermined angle which enables the remaining portion of the water return portion 8 The content liquid surely flows to the water injection portion 7. Therefore, after the user injects the content liquid into the teacup, the liquid container 1 changes from the inclined state to the upright state, and the content liquid remaining on the water return portion 8 attracts the inner solution adhering to the drain portion 9 due to the surface tension, preventing the draining. The content liquid on the side of the portion 9 flows to the outside. As the liquid container 1 is turned into an upright state, the content liquid adhering to the drain portion 9 is absorbed by the content liquid on the water return portion 8, and flows toward the water injection portion 7 side, thereby returning to the container body 3. The length of the drain portion 9 from one side of the connection with the water return portion 8 to the other side connected to the water injection portion 7 (i.e., the depth A shown in the drawing) is greater than from the upper end portion 10 of the drain portion 9 The width B of the lower end portion 11. Therefore, since the area of the water return portion 8 is larger than the area of the drain portion 9, the content liquid remaining in the water return portion 8 will be more than the drain portion 9, so that the content liquid can be easily returned by the surface tension. Water return portion 8. The inclination angle α 1 of the water return portion 8 is between 10 degrees and 30 degrees, and the inclination angle α2 of the water injection portion 7 is larger than the set inclination angle α 1 between 25 degrees and 45 degrees.

If the width B of the drain portion 9 from the upper end portion 10 to the lower end portion 11 is long, the amount of liquid remaining in the drain portion 9 becomes large, and it is not easy to return to the water return portion 8, so the width B needs to be designed to be short. . However, if the width B is too short, the content liquid is also easily hovered under the drain portion 9 and causes dripping, so the width B is at least greater than 1 mm.

As shown in FIG. 5, immediately after the user injects the content liquid, the liquid container 1 is in an inclined state, and the water return portion 8 is slightly horizontal on the horizontal line X2. At this time, the vertical line Y perpendicularly intersecting the horizontal line X2 of the drain portion 9 has an inclination angle α 3 , and when the inclination angle α 3 is too small, the amount of liquid and liquid remaining in the drain portion 9 will be small, and at the end of the injection The residual content liquid will easily drip off the outside. On the other hand, when the inclination angle α 3 is large, the internal solution remaining at the end of the injection does not easily fall to the outside, and the amount of the liquid liquid remaining in the drain portion 9 increases. However, if the amount of liquid remaining in the drain portion 9 is too large, water may still drip. Therefore, when designing the inclination angle α 3 of the drain portion 9, it is necessary to first calculate the angle at which the water reflux portion 8 can easily return the content liquid.

In the present embodiment, the content liquid in the container body 3 is water, and the force remaining in the water remaining in the drain portion 9 and the water remaining in the water return portion 8 is not affected by the surface tension, and the following will be An angle at which the water remaining in the drain portion 9 can be pulled back is obtained.

Assuming that the surface tension at 20 degrees of water is 73 × 10 ^-3 [N/m], the water remaining in the drain portion 9 at the end of the injection is spherical, and the radius is L, and the water remaining in the drain portion 9 remains in the water. The water in the reflux portion 8 is in contact with the length of the contact line C in the range of 2L [mm], and the force of the water remaining in the drain portion 9 in accordance with the water remaining in the water return portion 8 is F, which is calculated by the following formula: F = 73 x 10 ^-3 x 2L x 10 ^-3 [N]

Assuming the gravity G1 acting on the water droplets, the gravity G2 acting on the plane and the parallel direction of the drain portion 9 due to the weight of the water droplets of the drain portion 9 is calculated by the following formula.

G2=G1 x cosα[gf]

According to the above formula, if F>G2, the water droplets of the drain portion 9 are drawn by the water of the water return portion 8 so as not to drip. Assuming that the capacity of one drop of water is 4πL ³ /3 [mm], when the width B is 2 mm, the radius L of the water drop is 2 mm, and the contact range of the water of the drain portion 9 and the water of the water return portion 8 is 4 mm.厘, the water droplets of the drain portion 9 are drawn by the water of the water return portion 8 without dropping, that is, when F = G2 is calculated, α 3 is approximately 27 degrees.

Accordingly, the inclination angle [alpha] 9 draining portion 3 is 27 degrees, the inclination angle [alpha] 9 draining portion 3 plus the angle portion of water was refluxed for 8 inclination angle α 90 ° 117 ° 4 approximations, can be maintained through the draining surface tension In the portion 9, if the angle is larger than these angles, dripping can be surely prevented. However, when the value of the inclination angle α 4 is excessively large, the water droplet remaining at the front end of the drain portion 9 becomes large, and it may not easily return to the water return portion, so the inclination angle α 4 is preferably an approximate value of 117 degrees. In the above calculation, it is assumed that the width B of the drain portion 9 is 2 mm, the width B becomes large, and the water droplets become large, so it is preferable to reduce the width B as much as possible. The water droplets of the drain portion 9 are also pulled by the surface tension of the inclined surface 17 on the surface of the drain portion 9, so the inclination angle α 3 of the drain portion 9 needs to be slightly smaller than 27 degrees.

When the inclination angle portion of water was refluxed for 8 α 1 is from 10 to 30 degrees, the inclination angle [alpha] can be changed draining portion width B 3 9 plus water reflux inclined angle α 4 and 8 of the draining portion 9: the inventors have through experiments In the angle of not dripping, when the inclination angle α 3 of the drain portion 9 plus the inclination angle α 4 of the angle 90 degrees of the water return portion 8 is close to 110 degrees, it is the easiest to drip water, and when the angle of the drain portion 9 is added with water reflux When the angle of the portion 8 is less than 90 degrees and greater than 130 degrees, it is most likely to drip. When the width B of the drain portion 9 is approximately equal to 2 mm, it is most stable and not easy to drip, and when it is less than 1 mm or more than 4 mm, it is most likely to drip. The experimental results may vary depending on various conditions such as the material, the state of the surface of the material, the viscosity of the liquid, or the shape of the spout 5.

As described above, in the present embodiment, in the liquid container 1 in which the liquid is injected by tilting the container, a water return portion 8 is provided between the drain portion 9 and the water injection portion 7, and the depth A of the water return portion 8 is larger than that of the drain portion 9. Width B, the area of the water return portion 8 is larger than the area of the drain portion 9, and the inclination angle α 1 of the water return portion 8 is slightly inclined from the horizontal, and it is difficult for the liquid before the end of the injection to remain in the drain portion 9, even if the liquid remains in the drain portion 9. The residual liquid also flows back to the water return portion 8, and the dripping phenomenon caused by the liquid flowing from the drain portion 9 to the outside can be surely prevented.

The angle of the drain portion 9 and the water return portion 8 is between 90 degrees and 130 degrees, and the width B of the drain portion 9 is formed in the range of 1 to 4 mm, which can surely prevent the liquid from flowing outward, and the drain portion 9 does not The liquid is liable to remain, and even if it remains, the amount of liquid is relatively small, and it is possible to surely prevent the liquid from dripping from the water return portion 8.

The above description is only a preferred embodiment of the present invention, but the technical features of the present invention are not limited thereto, and those skilled in the relevant art can easily think about it after considering the technical content of the present invention. Modifications should not depart from the scope of protection of the present invention.

1‧‧‧Liquid container

2‧‧‧ openings

4‧‧‧Removable plug

5‧‧‧ spout

6‧‧‧ grip part

7‧‧‧Water Injection Department

8‧‧‧Water return

9‧‧‧Drainage Department

10‧‧‧ upper end

11‧‧‧Bottom

12‧‧‧Simplified body

14‧‧‧First operating member

15‧‧‧Second operating member

16‧‧‧Liquid flow path exit

Claims (2)

A liquid container nozzle is applied to a liquid container, comprising: a water injection portion disposed on the liquid container; and a drain portion disposed on the liquid container adjacent to the water injection portion at the liquid container When tilted, the solution in the liquid container flows out through the water injection portion and the drain portion in sequence; and a water return portion is disposed between the drain portion and the water injection portion, and the depth of the water return portion is greater than the The width of the drain portion, and the area of the water return portion is larger than the area of the drain portion, and the set angle of the water return portion is inclined from the horizontal line. The spout according to claim 1, wherein the angle between the drain portion and the water return portion is between 90 degrees and 130 degrees, and the width of the drain portion is between 1 mm and 4 mm. .