JPS6237515Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a straw having a water stop function.

BACKGROUND ART Conventionally, water bottles have been provided in which a straw is inserted into the upper surface of the water bottle, and the solution inside the bottle can be sucked and drunk through the straw. (Mr. Kimiaki
57-48425). In this case, one end of the straw is inserted into the water bottle body and opens near the bottom of the water bottle body, and the other end that protrudes outside the water bottle body serves as a drinking spout. The mouth of the straw is removably inserted into the air hole to close the air hole.

However, in the above case, in order to prevent water leakage, the drinking straw must be inserted into the vent hole, which is not only troublesome, but also prevents the water bottle from tipping over if you forget to insert it. , the disadvantage is that liquid flows out of the straw and vent.

This invention was made in view of the above drawbacks,
The purpose of the present invention is to provide a straw with a water stop function in which the straw itself has a water stop function.

The present invention will be described below with reference to the accompanying drawings which are embodiments thereof.

1 to 3 show a first embodiment of a straw 1 with a water stop function according to the present invention.
It is made up of. A disc-shaped valve body 5 is fixed to the lower end opening of the upper straw 2, and a plurality of communication ports 2a communicating inside and outside are provided around the lower end opening. On the other hand, the upper end opening of the lower straw 3 is formed in a slightly tapered shape, and this opening is used as a valve port 3a that is opened and closed by the valve body 5.

Both ends of the expandable body 4 are integrally molded or welded to the opposing ends of the straws 2 and 3, thereby airtightly connecting the straws 2 and 3. The expandable body 4 has a bellows 4a having a contractile force in the center thereof, and the bellows 4a surrounds the valve body 5, the communication port 2a, and the valve port 3a.

Here, how to use the straw 1 will be explained.
First, in the free state (see Figure 2), both the upper and lower straws 2 and 3 are drawn together by the contractile force of the bellows 4a, and the valve body 5 is pressed against the valve port 3a, so that the upper and lower straws 2 and 3 are in communication with each other. do not have. Therefore, even if the user sucks through the drinking spout 2b, which is the upper end opening of the upper straw 2, the liquid does not flow through the straw 1. Next, when the upper straw 2 is pulled against the lower straw 3, the bellows 4a expands and the valve body 5 separates from the valve port 3a (FIG. 3). Therefore, when the user suctions through the drinking spout 2b of the upper straw 2 in this state, liquid flows through the lower straw 3, the valve opening 3a, the bellows 4a, and the communication port 2a, and the liquid can be sucked. Then, when the tensile force on the upper straw 2 is released, both the upper and lower straws 2 and 3 are pulled together by the contraction force of the bellows 4a, the valve body 5 closes the valve port 3a, and returns to the original state.

In addition, the bellows 4a may have a contractile elastic force sufficient to draw the straws 2 and 3 together in a free state and press the valve body 5 against the valve port 3a as shown in FIG. However, the valve body 5 may be brought into pressure contact with the valve port 3a by drawing both the upper and lower straws 2 and 3 together by the reversing force when the straws are reversed in the opposite direction. In the former case, it is necessary to draw the upper straw 2 in a taut state, but in the latter case, when the upper straw 2 is pulled, the bellows flips upward and maintains that state. Therefore, there is no need to keep pulling the upper straw 2 when sucking. Further, in the above embodiment, the upper straw 2 was provided with the valve body 5 and the communication port 2a, and the lower straw 3 was provided with the valve port 3a. 3 may be provided with a communication port with the valve body 5.

4 and 5 show a row in which the straw 1 is applied to a water bottle 10, and the water bottle 10 has a water bottle main body 11,
The opening 11a is provided with a lid 12 that clamps and seals a gasket 14 in the opening 11a, and an outer lid 13. The lid 12 has an upwardly bulging portion 12a formed in approximately half thereof, and a flat portion 12b formed in the remaining half of the lid 12. Flat part 12b
A through hole 15 is provided on the upper surface, and this through hole 1
5, a straw 1 is inserted and held in a watertight manner through a gasket 15a. In addition, the bulging portion 12
A gasket 16 having a through hole 16a is provided at the top of a.
is installed. The outer lid body 13 is the lid body 12
It is formed in a shape that almost matches the outer surface of the bulging part 12a, and is attached to the outer guide part 12c of the lid body 12 so as to be rotatable in the horizontal direction. A window hole 13a is formed in a part of the outer lid body 13,
The window hole 13a is formed in such a size that the flat portion 12b is exposed to the outside when the outer lid body 13 is rotated toward the bulged portion 12a.

When carrying the water bottle 10, as shown in FIG. 4, rotate the outer lid body 13 toward the flat part 12b,
What is necessary is to cover the straw 1 with the outer lid body 13 and seal the ventilation hole 16a. To suck the content liquid, as shown in FIG. 5, rotate the outer lid 13 to expose the flat part 12b, and
The second ventilation hole 16a is opened. Then, while pulling the upper straw 2, the valve port 3a inside the expandable body 4 is opened.
Open the mouth and suck. The internal solution flows in from the lower end opening 3b of the lower straw 3, and is sucked from the drinking spout 2b of the upper straw 2 via the valve port 3a, bellows 4a, and communication port 2a. After sucking, when the upper straw 2 is released, the elastic body 4 is contracted by the contraction force, compressing the valve body 5 into the valve opening 3a. Therefore, when the upper straw 2 is removed, the valve port 3a is automatically closed. Then, by rotating the outer lid body 13, the flat part 12b is closed, and the ventilation hole 16a is closed to return to the state shown in FIG. 4.

If you release your hand from the upper straw 2 as shown above,
Since the valve opening 3a is automatically closed, there is no risk of the contents leaking even if the water bottle 10 is accidentally tipped over, and since there is no need to insert the drinking spout 2b of the straw 2 into the air hole, it is convenient to use.
After drinking, there is no need to insert the drinking spout 2b of the straw 1 into the vent hole and return it to the container, so the drinking spout 2b
It is hygienic because there is no contact between the bottle and the liquid inside, and when the drinking opening 2b of the straw 1 is inserted into the air hole, water stains and dust adhering to the vicinity of the air hole do not fall into the inside of the water bottle, making it even more hygienic.

6 and 7 show a second embodiment of the straw according to the present invention. In this embodiment, a separate plate-shaped valve body 5 is engaged with the valley portion 4b of the bellows 4a of the expandable body 4 to hold it horizontally. The valve body 5 has a plurality of through holes 5a around the center thereof to allow the contents to flow through the valve body 5.

In the free state, the communication port 2a of the upper straw 2 and the valve port 3a of the lower straw 3, which are located in opposite directions, are drawn together by the contractile force of the expandable body 4, and are in pressure contact with the valve body 5, so that the upper straw 2 and the lower straw 3 are not in communication. When sucking, similarly to the first embodiment, by pulling up the upper straw 2, the communication port 2a of the upper straw 2 and the valve port 3a of the lower straw 3 are separated from the valve body 5, and the communication port 2a is separated from the valve body 5. and the valve port 3a are opened. Therefore, the internal solution flows in from the valve port 3a of the lower straw 3, passes through the through hole 5a, and is sucked through the communication port 2a of the upper straw 2.

8 to 10 show a third embodiment. In this embodiment, the upper and lower straws 2 and 3 and the expandable member 4 are formed separately and are fixed by heat welding or adhesive, for example. Moreover, since the valve body 5 is spherical and the valve port 3a is formed in a tapered shape, the spherical valve body 5 is stably placed on the valve port 3a. In the free state, the valve body 5 is held under pressure by the upper straw 2 and the lower straw 3, and the valve port 3a is closed. For drinking, use the upper straw 2
By pulling up, the valve body 5 is freed, the valve port 3a is opened, and suction is performed. Valve body 5 when sucking
The communication port 2a is connected to the upper straw 2 so that the fluid is attracted to the upper straw 2 and does not obstruct the flow of fluid.
It is provided around the lower end of the.

According to this embodiment, since the spherical valve body 5 fits into the tapered valve port 3a, the water stop function is good, and the fitted state does not change even if the upper and lower straws 2 and 3 are tilted. This has the effect of maintaining good sealing performance.

FIGS. 11 and 12 show a fourth embodiment. In this embodiment, the valve body 5 has a tapered surface 5b, and the valve body 5 is integrally molded with the upper straw 2. Further, the valve port 3a has a tapered surface at a position where it fits with the valve body 5 in order to improve sealing performance. In this embodiment, since there is no need to provide a separate valve body, the number of parts is reduced, the structure is simplified, and manufacturing is facilitated.

In each of the above embodiments, it is of course possible to interpose a spring in the elastic body in order to apply a forced contraction force.

As is clear from the above explanation, in this invention, the valve body and the valve port are brought into pressure contact by the contractile force of the expandable body, so it is easy to do so by simply removing your hand from the upper straw or pushing the upper straw slightly. This has the effect of preventing water leakage.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the entire first embodiment according to the present invention, Fig. 2 is a partially enlarged view of Fig. 1, Fig. 3 is a longitudinal sectional view of the main part of the first embodiment, and Fig. 4 Figure 5 is the first
Vertical sectional view when the embodiment is applied to a water bottle, No. 6
7 is a vertical sectional view showing the main parts of the second embodiment,
8 and 9 are vertical sectional views showing the main parts of the third embodiment, FIG. 10 is a partially enlarged view of FIG. 8, and FIG.
FIG. 12 is a longitudinal sectional view showing the main parts of the fourth embodiment. 1... Straw, 2... Upper straw, 2a...
...Communication port, 3...Lower straw, 3a...Valve port,
4...Stretchable body, 4a...Bows, 4b...Tanibe, 5
... Valve body, 5a ... Penetration port, 5b ... Tapered surface.

Claims (1)

[Scope of utility model registration request] An upper straw, a lower straw, a telescopic body whose ends are airtightly connected to opposite ends of both straws, and a bellows having a contractile force in the center, and a valve located inside the bellows of the telescopic body. a valve port formed at one of the ends of the straws that opens into the inside of the expandable body and closed by the valve body by the contractile force of the expandable body; A straw with a water stop function, consisting of a communication port formed on the other side.