JPH0430125Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a quantitative discharge container that intermittently dispenses a predetermined amount of the liquid contained therein.

"Prior Art" FIG. 8 shows a conventional liquid quantitative discharge container. This liquid quantitative discharge container applies the principle of a siphon.

This liquid metering discharge container consists of a container body 1 that accommodates the liquid content, and a metering discharge stopper 2 provided at the mouth portion 1a of the container body 1. This quantitative discharge plug 2 has a measuring chamber 4 formed by a case body 3 consisting of a bottom part 3a, a body part 3b and a top plate part 3c. Cylindrical rib 5 extending near the top plate portion 3c
A siphon space 6 is formed. A discharge pipe 7, which has one end communicating with the outside air and the other end extending into the siphon space 6, is provided through the top plate portion 3c of the case body 3.

An air pipe 8 extending into the container body 1 is provided at the bottom 3a of the case body 3, and one end of this air pipe 8 is open and communicates with the siphon space 6. Moreover, on the bottom 3a of the case body 3,
A liquid inlet 9 is provided so as to open outward from the cylindrical rib 5 . Further, the case body 3 is provided with a vent 10 that communicates the measuring chamber 4 with outside air. The vent 10 is formed to start from the top plate portion 3c, extend along the body portion 3b, and open near the bottom portion 3a.

A predetermined amount of the liquid content is intermittently poured out from this quantitative discharge container.

When this quantitative discharge container is turned upside down as shown in FIG.
The metering process is started by flowing out into the measuring chamber 4 through the metering chamber 4. In this measuring step, outside air corresponding to the amount of liquid flowing out from the container body 1 is replenished into the container via the exhaust pipe 7 and the air pipe 8.

Then, as shown in FIG. 9, when the level of the content liquid that has flowed into the metering chamber 4 exceeds the upper end of the discharge pipe 7 and blocks the pipe 7, the outside air that has been flowing through the pipe 7 is replenished. Since it is cut off, the flow of the contents from the container body 1 into the measuring chamber 4 is stopped. Then, a discharge process is started in which the liquid content in the metering chamber 4 is discharged to the outside from the discharge pipe 7 according to the siphon principle, and the liquid level drops to the lower end of the rib 5 and the vent hole 1
The content liquid continues to be discharged until the air flowing in from 0 enters the siphon space 6.

When this discharge process is completed, outside air is again supplied into the container via the discharge pipe 7, so the liquid content in the container body 1 flows into the measuring chamber 4 of the discharge plug 2 via the liquid inlet 9. Then the weighing process begins again. Thereafter, similar operations are repeated, and the liquid contained in the container is intermittently poured out in predetermined amounts.

``Problems to be solved by the invention'' By the way, in such a quantitative discharge device, if the container body 1 is made of a soft material such as polyethylene (PE) or polypropylene (PP),
There was a problem that the quantitative nature was greatly impaired. This tendency is especially seen in containers with a large capacity or thin walls even though they are made of the same material.

That is, in the conventional quantitative discharge container, when the discharge pipe 7 is blocked by the content liquid that has flowed into the metering chamber 4 and the supply of replenishment air via the discharge pipe 7 - air pipe 8 is cut off, the container body 1 The flow of the contents into the metering chamber 4 must be stopped. However, in the case of the above-mentioned conventional quantitative discharge container, if the container body 1 is soft, the container body 1 itself may be deformed (collapsed) even if no supplementary air is supplied.
As a result, the content liquid will flow in a larger amount than planned due to the weight of the liquid, and this phenomenon will cause further variations because the weight of the liquid changes depending on the amount of liquid content remaining in the container body 1. There were times when it got bigger. As a result, the flow of the liquid from the container body 1 may be stopped or continued, causing the amount of liquid measured each time to fluctuate, resulting in inaccurate measurement of the liquid.

By the way, if the main body 1 is made of PE and the content is filled in a quantitative discharge container with a content of 2,
Approximately 200 c.c. of liquid content can flow into the metering chamber 4 even without the supply of make-up air.

In addition to the above-mentioned problems, in the conventional liquid metering discharge container described above, when attempting to set a large amount of liquid to be measured, the metering chamber 4 must be enlarged, which inconveniences the metering discharge plug 2 becoming larger. Ta.

The present invention was developed in view of the above circumstances, and even if the container body is easily deformed, it is possible to intermittently pour out a predetermined amount of the liquid content, and the amount dispensed may vary due to the deformation of the container. It is an object of the present invention to provide a liquid quantitative discharge container that can suppress the amount of liquid discharged and increase the discharge amount even if it is small.

``Means for Solving the Problems'' Therefore, in the liquid metering discharge container of the present invention, the metering chamber is connected to the metering chamber formed by the case body consisting of the bottom, body and top plate. , a siphon space formed in the measuring chamber partitioned by a rib extending from the bottom of the case body to the vicinity of the top plate, and a siphon space provided through the top plate of the case body, one end of which communicates with the outside air and the other end of which is connected to the outside air. A discharge pipe that extends beyond the tip of the rib into the siphon space, and air that opens at a position outside the siphon space at the bottom of the case body and the inside of the container body to communicate the measuring chamber with the inside of the container body. a pipe, a ventilation pipe that passes through the top plate and communicates outside air with the measuring chamber, and whose opening position inside the case body is located near the bottom of the case body;
A liquid inlet is provided at the bottom of the case body at a position away from the opening of the air pipe, away from a position facing the opening of the ventilation pipe, and away from a position facing the opening of the discharge pipe. When the discharge container is inverted, the internal solution discharge capacity flows from the inside of the siphon space to the outside of the case body through the discharge pipe, and the internal solution discharge capacity flows into the measuring chamber of the case body through the liquid inlet from within the container body. The above problem was solved by setting the flow rate to be larger than the flow rate of the solution.

``Example'' Hereinafter, the liquid metering discharge plug of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the liquid quantitative discharge container of the present invention.

This quantitative discharge container consists of a container body 20 that accommodates the liquid content, and a quantitative discharge plug 21 provided at the mouth 20a of this container body 20.

The quantitative discharge plug 21 has a bottom portion 22a, a body portion 22
A measuring chamber 23 is formed by the case body 22 consisting of a top plate portion 22c and a top plate portion 22c. A siphon space 25 is formed. Rib 24
is cylindrical, and the rib 24 forms the siphon space 25 into a cylindrical shape.

A discharge pipe 26 is provided through the top plate portion 22c of the case body 22. This discharge pipe 26 is
One end thereof communicates with the outside air, and the other end extends beyond the tip of the rib 24 into the siphon space 25. This discharge pipe 26 may be fixed, but it may also be provided so as to be slidable up and down.

An air pipe 27a passing through the bottom 22a is connected to the edge of the bottom 22a of the case body 22.
It is erected so as to extend inward. An air hole 27 is formed by this air pipe 27a. This air hole 27 is connected to the inside of the container body 20 and the measuring chamber 2.
3, and the opening 27b on the measuring chamber 23 side is located at a location away from the siphon space 25. Also, this air hole 2
The other opening 7 is formed at a lower position than an inlet 29, which will be described later. In this example, metered discharge valve 2
In No. 1, an air pipe 27a is provided near the periphery of the bottom portion 22a, and an opening 27b thereof is located near a vent 28, which will be described later. This allows air flowing in from the vent 28 to be easily supplied into the container body 20.

The case body 22 is provided with a ventilation pipe 28a that passes through the top plate portion 22a and communicates the measuring chamber 23 with the outside air. is case body 2
It is opened at a position near the bottom part 22a of 2. In the case body 22 of this example, a vent hole 28 is formed along the body portion 22b of the case body 22, one end of which is near the bottom portion 22a, and the other end of which is formed in the top plate portion 22b.
It opens at c.

Further, a liquid inlet 29 is provided at the bottom 22 a of the case body 22 to allow the liquid contained in the container body 20 to flow into the measuring chamber 23 . This liquid inlet 29
is removed from the opening of the air pipe 27a at the bottom 22a of the case body 22, removed from the position facing the opening of the ventilation pipe 28a, and removed from the exhaust pipe 2.
It is formed at a position away from the position facing the opening 26a of No. 6. In this example, a liquid inlet 29 is provided at a position opposite to the air hole 27. Moreover, this liquid inlet 29 is bored so as to communicate with the outside of the siphon space 25 of the metering chamber 23.

In the quantitative discharge container of the present invention, the capacity for discharging the liquid from the discharge pipe 26 is set to be larger than the amount of liquid flowing through the liquid inlet 29. Here, the discharge capacity of the discharge pipe 26 is the amount of liquid content discharged per unit time from the discharge pipe 26 according to the siphon principle during the discharge process. Further, the amount of inflow from the liquid inlet 29 is the amount of liquid content flowing into the metering chamber 23 from the container body 20 via the liquid inlet 29 per unit time when the quantitative discharge container is inverted. These discharge capacity and inflow amount are
It is determined by the diameter and length of the discharge pipe 26 and the liquid inlet 29.

"Operation" Next, the operation of this liquid quantitative discharge container will be explained.

When this container is turned upside down, the measuring process begins. First, as shown in FIG. On the 20th,
Outside air is replenished through the vent hole 28-air hole 27.

Next, as shown in FIG. 3, when the liquid level of the liquid that has flowed into the measuring chamber 23 rises and seals the opening 26a of the discharge pipe 26, the siphon works and the discharge process begins, and the contents are discharged from the discharge pipe 26. The liquid will be drained. The siphon works here because the measuring chamber 23 communicates with the outside air through the vent 28 during the discharge process, so while atmospheric pressure is acting on the measuring chamber 23, the content liquid is discharged. When the pipe 26 is closed and the liquid inside the discharge pipe 26 is about to fall, the siphon space 25 becomes under negative pressure, so the liquid inside the metering chamber 23, where atmospheric pressure acts, sequentially flows toward the siphon space 25. This means that the liquid content is continuously discharged from the discharge pipe 26.

In the liquid quantitative discharge container of the present invention, even while the content liquid is being discharged from the discharge pipe 26, as shown in FIG.
Outside air is supplied into the container body 20 via 7.
As a result, in the metering chamber 23 of the discharge plug 21,
The liquid content in the container body 20 continues to flow.

Even if the content liquid flows into the measuring chamber 23 in this way,
Since the discharge amount from the discharge pipe 26 is larger, the amount of liquid inside the metering chamber 23 decreases for a while. and,
When the liquid level of the content drops below the tip of the rib 24, the siphon finishes working and the discharge process ends.

Then, the state returns to the state shown in FIG. 2 again, and the above-mentioned measuring process begins. If the design is designed so that the weighing process and the discharging process are repeated alternately in this way, and the amount discharged in this discharging process can be determined, it is possible to simply invert the container and count the number of times it is discharged. , desired measurement becomes possible.

In the liquid quantitative discharge container of the present invention, the air hole 27 is provided to open at a position outside the siphon space 25, so even if the discharge pipe 26 is blocked, outside air is constantly supplied to the container body 20. As a result, the liquid content in the container body 1 is continuously transferred to the measuring chamber 23.
flows into. Since the discharge capacity of the discharge pipe 26 is greater than the amount of inflow from the liquid inlet 29, switching between the discharge process and the metering process is performed based on this difference.

In this way, in the quantitative discharge container of the present invention, by freely supplying outside air to the container body 20,
Since the content liquid is made to constantly flow into the measuring chamber 23, the measurement of the content liquid does not become unstable due to the deformation of the container due to the weight of the liquid when it is inverted, unlike in conventional quantitative discharge containers. , it becomes a quantitative discharge container that allows intermittent and stable metering by simply inverting the container.

In addition, regarding the liquid quantitative discharge container of the present invention,
Each measurement is the sum of the amount of liquid stored in the measuring chamber 23 during the measuring process and the amount of liquid flowing in during the discharging process, so a large amount of liquid content can be measured with a small quantitative discharge tap. Become.

"Other Embodiments" Figures 5 to 7 show other embodiments of the liquid quantitative discharge container of the present invention, and the same components as in the first embodiment are designated by the same reference numerals. Simplify the explanation.

FIG. 5 shows a second embodiment of the liquid quantitative discharge container of the present invention. The difference between the discharge container of the second embodiment and the first embodiment is that a liquid inlet 29 for causing the liquid content of the container body 20 to flow into the measuring chamber 23 is provided at a position communicating with the siphon space 25. At the point.

In the case of this quantitative discharge container, the discharge pipe 26
is provided so as to communicate with one side of the siphon space 25 at a biased position. On the other hand, the liquid inlet 29
is provided so as to communicate with the siphon space 25 on the opposite side of the discharge pipe 26 so that the liquid content does not flow directly into the discharge pipe 26 when the container is inverted.

Even with the quantitative discharge container of this example, the same effects as those of the first embodiment described above can be obtained.

FIG. 6 shows a third embodiment of the liquid quantitative discharge container of the present invention.

The container of this embodiment differs from that of the first embodiment in the shape of the ribs 24. The rib 24 in this embodiment has a substantially U-shaped cross section, and both end portions thereof are connected to the body portion 22b of the case body 22.

The liquid quantitative discharge container of this example also provides the same effects as those of the first example.

FIG. 7 shows a fourth embodiment of the liquid quantitative discharge container of the present invention.
It is in the shape of

The air pipe 27a of this quantitative discharge container is formed thicker than that of the first embodiment. The end portion is closed by an umbrella-shaped closing portion 27c, and a small hole 27 is provided in the center of the closing portion 27c.
d is drilled. This small hole 27d is formed by forming the umbrella-shaped closing portion 27c thin.
Its peripheral wall surface is formed narrowly.

The quantitative discharge container of this example not only provides the same effects as those of the first embodiment, but also has the advantage that outside air can be supplied smoothly through the air holes 27.

That is, in this quantitative discharge container, the air pipe 27
Since the peripheral wall surface of the small hole 27d of a is formed to be narrow, even if the liquid inside flows into the small hole 27d and blocks it, the adhesion force of the liquid that blocks the small hole 27d is small. Easily removed by inflowing outside air. In addition, since the closing portion 27c of the air pipe 27a is formed in an umbrella shape, a part of the liquid content that has blocked the small hole 27d may be removed from the air pipe 27a.
Even if it flows into the wall, it flows down along the wall surface of this closing portion 27c. As a result, this small hole 27
d can be opened easily, and outside air can flow in smoothly.

Note that the liquid metering discharge container of the present invention is not limited to the above embodiments; for example, the liquid metering discharge container 2
1, the opening on the inside of the case body 22 is located at the bottom 2 to the extent that the liquid does not adhere to the vent hole 28 and block the vent hole 28, or the liquid does not flow out from the vent hole 28.
The other end may be opened in the body 22b of the case body 22. Furthermore, it goes without saying that the vent hole 28 may be formed simply by drilling a hole in the body portion 22b of the case body 22.

"Effects of the Invention" As explained above, in the liquid metering discharge container of the present invention, the air hole that communicates the measuring chamber and the container body is provided to open at a position outside the siphon space, and the discharge pipe is The liquid discharge capacity of the container is set to be larger than the amount of liquid inflow from the liquid inlet, so when the container body is turned upside down and the measuring process is started, the container body is continuously discharged from the air hole of the air pipe. As a result, air is constantly supplied to the measuring chamber from the vent, and as a result, a constant amount of the liquid content is continuously supplied from the liquid inlet to the measuring chamber, regardless of the deformation of the container body. . Therefore, the amount of liquid content poured into the measuring chamber can be stabilized without being affected by the deformation state of the container body.

While a certain amount of liquid is being stably supplied to the measuring chamber, when the liquid increases and the discharge pipe is closed, the siphon space becomes negative pressure and the surrounding measuring chamber becomes atmospheric pressure. A siphon action can be caused, and a draining process can be initiated to drain the liquid content in the siphon space and the drain pipe from the drain pipe.

In addition, since the amount of liquid content discharged from the discharge pipe is larger than the amount flowing into the metering chamber from the liquid inlet, the liquid level in the siphon space gradually falls, and the liquid content in the discharge pipe is discharged. Then, the siphon space is opened, so the siphon action is stopped, the metering process is started, and the discharge of the liquid content is stopped.

If you continue to invert the container body, the weighing process and the discharging process will be repeated intermittently, so you can easily grasp the discharge amount by counting the number of times the discharging process is performed, and the desired measurement becomes possible.

In addition, even while the content liquid is being discharged from the discharge pipe in the above-mentioned discharge process, the content liquid flows into the measuring chamber from the liquid inlet. The content liquid that comes out can be added and discharged. As a result, more liquid can be discharged, so the discharge volume can be increased even with a small metering discharge valve.
The discharge plug can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a first embodiment of the liquid quantitative discharge container of the present invention, FIGS. 2 to 4 are cross-sectional views for explaining the operation of the same embodiment, and FIGS. 5 to 7 are FIG. 8 is a cross-sectional view showing another embodiment of the liquid metering discharge container of the present invention, FIG. 8 is a cross-sectional view showing a conventional liquid metering discharge container, and FIG. 9 is a cross-sectional view for explaining the operation of the conventional example. be. 20...Container body, 21...Quantitative discharge plug, 22
... Case body, 22a ... Bottom part, 22b ... Body part, 22c ... Top plate part, 23 ... Measuring chamber, 24 ...
...Rib, 25...Siphon space, 26...Discharge pipe, 26a...Opening, 27...Air hole, 27a
...Air pipe, 27b...Opening, 28...Vent hole, 28a...Vent pipe, 29...Liquid inlet.

Claims (1)

[Scope of Claim for Utility Model Registration] A liquid metering discharge container consisting of a container body containing an internal solution and a metering discharge stopper provided at the mouth of the container body, wherein the metering discharge stopper is located at the bottom, body and A measuring chamber formed by the case body consisting of a top plate part, a siphon space partitioned by a rib extending from the bottom of the case body to the vicinity of the top plate part and formed in the measuring chamber, and a top plate part of the case body. a discharge pipe that is provided through the case and has one end communicating with the outside air and the other end extending into the siphon space beyond the tip of the rib, and a position outside the siphon space at the bottom of the case body and an inside side of the container body. an air pipe that opens at the top and communicates between the measuring chamber and the container body; and an air pipe that passes through the top plate and communicates the outside air with the measuring chamber, and the opening position on the inside of the case body is located near the bottom of the case body. and a liquid formed at the bottom of the case body at a position away from the opening of the air pipe, away from a position facing the opening of the ventilation pipe, and away from a position facing the opening of the discharge pipe. When the discharge container is inverted, the internal solution discharge ability flows from the inside of the siphon space to the outside of the case body through the discharge pipe, and the internal solution is discharged from the container body through the liquid inlet to the case body. A liquid quantitative discharge container characterized in that the volume is set to be larger than the amount of internal solution flowing into the chamber.