JPH1053250A - Liquid spouting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make piling-up of liq. container each other possible without removing a device and to make tight covering of a spouting cylinder of a container with a lid possible by fitting liq-tightly the slidably displacable spouting cylinder to a spouting hole of the liq. container and arranging a vent path on the inside of the spouting cylinder. SOLUTION: A spouting cylinder 1 wherein projections 1a and 1b for stopping falling-out are provided on outer peripheries of the top and bottom end parts is fitted slidably displacably in the inner and outer direction of a container 3 in a spout hole 3a of the container 3. The outer periphery of the projection 1b for stopping falling-out of the bottom end side of the spouting cylinder 1 is a tapered face with a diameter being gradually smaller toward the bottom end so as to fit easier into the spout hole 3a. In addition, a vent path 2 which enters into the inside of the liq. container 3 with an L-shape and is opened above the liq. face level of the liq. container 3 under a posture for pouring of liq. and consists of a rigid cylindrical member, is arranged. It is possible thereby to prevent flow of the liq. from pulsing and to prevent the liq. from dropping and scattering and to push the spouting cylinder 1 to put on tightly a lid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid discharging apparatus suitable for being applied to a liquid container, in particular, a spout of a medium-sized or large-sized liquid container having a general can shape. Injecting the liquid into another container, etc., in particular, to prevent the liquid from spilling or scattering around the liquid container itself and the receiving container, etc. due to the rapid flow of the liquid at the beginning of the injection, and This prevents the liquid being injected from flowing down to an unintended position due to the pulsating flow.

[0002]

2. Description of the Related Art As a conventional liquid dispensing apparatus of this kind applicable to medium-sized and large-sized can-shaped liquid containers having a capacity of, for example, about 4 to 20 liters, Japanese Utility Model Laid-Open Publication No.
No. 8, JP-A-62-203831, JP-A-1-177157, JP-A-4-48162, JP-A-1-294451, and the like. All of these devices are externally mounted to the spout of the container when pouring the liquid from the liquid container, and include a spout cylinder that protrudes largely outside the spout of the container, and an inside of the liquid container. And a vent tube for introducing air into the air.

[0003] Therefore, according to these devices, the flow of the liquid flowing out of the liquid container is guided by the pouring cylinder projecting from the pouring port of the liquid container by an appropriate length, so that even at the beginning of the liquid pouring, It can prevent accidental spills, scattering, etc., and also allows the air outside the container to flow into the liquid container being injected under the action of the ventilation pipe, thereby pulsating the discharged liquid. Can be prevented from occurring.

[0004]

However, all of these conventional devices have a structure that is externally mounted at the spout of the liquid container and protrudes outwardly from the spout, so that the device is used as a liquid container. In the state where it is attached to the container, before, after and during use of the liquid in the container,
It is not possible to stack liquid containers in multiple stages for the purpose of their storage, transportation, etc., therefore, for the stacking, the liquid container must be It was necessary to attach and detach the device. On the other hand, none of these conventional devices has a structure for tightly covering the opening at the tip of the dispensing cylinder or the like, so that the liquid container is used before and during use of the liquid in the container. In storing the liquid, regardless of whether the containers are stacked or not, it is essential to remove the device from the liquid container and attach the lid sufficiently tightly to the spout of the liquid container itself.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem of the prior art, and an object of the present invention is to simply and quickly mount a liquid container having a can shape anytime and anywhere. Therefore, not only is there no need for special equipment for mounting the liquid container, but also the filling of the liquid in the liquid container with the device mounted is not hindered, and container,
In turn, based on the required forward and backward movements with respect to the spout, the mutual stacking of the liquid containers is fully tolerated without the necessity of attaching and detaching the device, and the tight cover to the container spout is attached and detached. To provide a liquid dispensing device that makes it possible without the need for

[0006]

A liquid dispensing apparatus according to the present invention is fitted in a liquid-tight manner into a spout of a liquid container and can be slidably displaced inward and outward of the liquid container, often 50 to 100 mm.
A stopper ridge is provided around the outer periphery of both ends of the pouring cylinder having a length of about 3 mm to abut around the spout, and the liquid container in the pouring posture is inserted into the liquid container inside the pouring cylinder. of,
An air passage opening above the liquid level is provided.

In this device, the liquid in the liquid container can be discharged under the guidance of the discharge tube by pulling out the discharge tube from the container outlet. It is possible to sufficiently prevent spilling, scattering, and the like caused by the rapid flow of the liquid in the inside. Also, here, the ventilation path opens above the liquid level of the liquid container in the pouring position, and tends to have a negative pressure. The air outside the container enters the space above the liquid level, in other words, the atmospheric pressure. Flows smoothly, so that there is no pulsating flow in the liquid flowing out of the dispensing cylinder.

In addition, after the liquid has been injected, the discharge tube of the device can be pushed into the container outlet to be stored inside the liquid container. Since there is almost no protruding part to the container, there is no danger of the device interfering with the conventional stacking of the liquid containers, and the container is completely sealed with the conventional cover to the container spout. can do.

Preferably, in this device, the outer diameter of the retaining ridge on the lower end side provided on the pouring cylinder is gradually reduced toward the lower end of the pouring cylinder. While smooth and easy to fit into the exit,
Eliminates the possibility of plastic deformation, etc., of the injection cylinder.

[0010] Preferably, the air passage is bent substantially in an L-shape, and is constituted by a rigid tubular member having a short rising portion and a long bent portion, thereby causing bending of the air passage and the like. In addition, the air passage is always opened above the liquid level in the container, that is, in the closed space in the container.

[0011] More preferably, the rising short portion of the rigid tubular member is integrated with the inner peripheral surface of the pouring tube generally by bonding, welding or the like. According to this, the fitting of the device to the liquid container can be completed only by fitting the spouting tube into the container spout, and the rotation of the rigid cylindrical member around the axis of the rising short portion. By restricting the dynamic displacement, the opening end of the bent and long portion in the container can be secured above the liquid level of the liquid container in the liquid pouring position.

More preferably, the angle of intersection between the rising short part and the bent long part of the rigid cylindrical member is an obtuse angle slightly larger than 90 degrees, and the liquid is discharged under a state where the pouring cylinder is pushed into the liquid container. Even if the liquid in the container enters the bent long part immersed in the container, if the bent long part is raised above the liquid level in the container by pulling out the injection tube, the bent liquid will be bent. Produces a smooth and rapid discharge from the tip opening of the elongate part, ensuring that there is always sufficient air flow to the ventilation channel.

Here, even more preferably, the open end of the bent and elongated portion of the rigid cylindrical member is located in the liquid container in the vicinity of the container wall farthest from the outlet of the liquid container. Even when the liquid level is at the highest level, the inflow of external air into the container in the liquid pouring position is guaranteed, and even if the bent long part may rotate in the horizontal plane, An appropriate rotation displacement is prevented by the contact between the container side wall and the container side wall, so that the air outside the container flows into the container at all times.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 (a) and 1 (b) are a cross-sectional side view and a plan view, respectively, showing a main part of an embodiment of the present invention. Here, relatively narrow retaining ridges 1a and 1b are provided around the upper and lower end portions of a cylindrical pouring cylinder 1 having a length of about 5 to 10 cm, respectively. The outer circumference of the ridge 1b is a tapered surface whose diameter gradually decreases toward the lower end. Then, inside such a pouring cylinder 1, there is provided an air passage 2 which enters the liquid container and opens above the liquid level of the liquid container in the pouring posture. The ventilation path 2 can be made of a flexible tube or the like provided with a float at the open end in the container. However, the ventilation path 2 may be clogged due to bending or the like. In order to remove this, as shown in the figure, it is preferable that the ventilation path 2 is formed by a rigid tubular member which is bent substantially in an L shape and has a short rising portion 2a and a long bending portion 2b.

Here, the ventilation path 2 is disposed inside the pouring cylinder 1 by placing the rising short portion 2a on the inner peripheral surface of the pouring cylinder 1.
Adhesion, welding, preferably performed by fixing or fixing by riveting or other mechanical connection, in this case, the upper end of the rising short portion 2a,
It is preferable to position the spout cylinder 1 so as not to protrude upward from the upper edge thereof in order to cover the spout of the liquid container, which will be described later. On the other hand, it is preferable that the lower end of the rising short portion 2a protrudes slightly below the lower end of the pouring tube 1. According to this, the fitting length of the pouring tube 1 into the container outlet is bent. Since the entire length portion 2b can be preliminarily entered into the liquid container, the fitting operation can be simplified.

By the way, rubber, plastic, metal, glass, and the like can be appropriately selected as a constituent material of the pouring cylinder 1 and the ventilation path 2. However, dissolution by liquid in the container, generation of rust, breakage, etc. In addition to the fear and the like, in consideration of the liquid-tight sliding contact of the dispensing cylinder 1 with the container outlet, plastic having excellent elasticity, for example, polyamide, polybutylene terephthalate, polycarbonate, polyethylene, polyethylene terephthalate, polypropylene, It is preferable to use polyvinyl chloride or the like as a constituent material. Here, the construction of the pouring cylinder 1 made of a plastic material is, for example, by injection molding or other molding, or the cutting of an existing pipe, and the construction of the ventilation path 2 is also, for example, the heating and bending of an existing pipe. And the like.

In this case, it is preferable that the outer diameter of the pouring cylinder 1 is larger than the pouring port by about 0.2 to 0.5 mm in order to ensure sufficient liquid tightness with respect to the container pouring port. In addition, the angle of intersection θ of the bent long portion 2b with the rising short portion 2a should be an obtuse angle that is somewhat larger than 90 degrees, under the pushing posture of the dispensing cylinder 1 into the liquid container. The liquid that has entered the
It is preferable to allow the gas to flow smoothly and quickly into the container with the drawer, and to always sufficiently open the ventilation path 2. The open end of the long portion 2b is the container farthest from the spout of the liquid container. Positioning the wall near the wall prevents accidental excessive rotation of the elongate portion 2b, and thus the pouring cylinder 1 to which the air passage 2 is fixed or fixed, and sets the open end of the pouring cylinder 1 at the liquid level in the container. It is preferable to always position it upward.

The mounting of the liquid dispensing device constructed as described above to the can-shaped liquid container is performed by bending the long elongated portion 2b of the ventilation path 2 as shown by the imaginary line in FIG. To
In a state in which the liquid container 3 has been preliminarily inserted into the liquid container 3 from the pouring port 3a, the taper surface of the retaining ridge 1b on the lower end side of the pouring cylinder 1 is formed on the opening peripheral wall 3b defining the pouring port 3a. Upright position to abut evenly over the
Into the spout 3a under the elastic deformation of the retaining ridge 1b and the vicinity thereof in the diameter-reducing direction, and thus into the liquid container 3, so that any special equipment is not required and anytime and anywhere. It can be easily performed, and the ridge 1b and its vicinity return to the original shape in the container 3.

Incidentally, such a mounting of the liquid discharging device is as follows.
Even when the injection is performed in a step before the liquid is filled into the liquid container 3, the injection tube 1 has an inner diameter that is not so different from that of the injection port 3a. It does not hinder subsequent filling of the container 3 with the liquid. Also, here, the injection tube 1 of the liquid injection device mounted on the liquid container 3 is completely pushed into the container 3, and the retaining projection 1a on the upper end side thereof is formed into an opening peripheral wall 3b defining an injection hole 3a. In the case of contact with the container, the protruding portion of the device from the container opening peripheral wall 3b is only the retaining ridge 1a on the upper end side of the pouring cylinder, which can have a width of, for example, about 2 mm. Outlet for container 3
As shown in the schematic sectional view of FIG. 2 (a), a sufficient sealing state can be brought about for 3a by a conventional general container lid 4 elastically engaging with the opening peripheral wall 3b.

By the way, when the pouring cylinder 1 whose length can be selected within a range of about 5 to 10 cm is completely pushed into the liquid container 3 as shown in FIG. Liquid container 3
In the unused state of the liquid 5 filled up to about 80 to 90% of its internal volume, the lower end portion of the pouring cylinder 1 and the bent long portion 2b of the ventilation path 2 are both in the liquid 5 , And the liquid 5 in the container usually enters the bent long portion 2b.

Here, to pour out the liquid 5 in the container 3, the container lid 4 is removed, and the pouring cylinder 1 is slid in contact with the opening peripheral wall 3b of its peripheral surface as shown in FIG. ), As shown in FIG. 4 (b), the upper end is pulled out to a position where the lower end retaining projection 1b abuts on the opening peripheral wall 3b. As a result, the dispensing cylinder 1 and the air passage 2 are provided with a liquid 5
And the discharge pipe 1 projects outward from the container discharge port 3a by a length sufficient to guide the smooth flow of the liquid 5, and the ventilation path 2 waits for air to flow therethrough. I do. Here, the rising short portion 2a of the ventilation path 2
When the intersection angle θ with the bent long part 2b is an obtuse angle, the ventilation path 2, especially the bent long part 2b
When the liquid 5 is pulled up on the liquid surface, all of the liquid 5 that has entered the liquid flows down smoothly and quickly into the container, so that the flow of air to the ventilation path 2 is made smoother and more reliable. be able to.

Thereafter, in a state where the dispensing cylinder 1 is pulled out, the liquid container 3 is tilted as shown in FIG. External air is caused to flow into the closed space 6 defined by the tilting of the container 3 and having a negative pressure tendency through the ventilation path 2. Accordingly, here, even in the initial stage of the liquid injection from the liquid container 3, the liquid 5 can be sufficiently prevented from spilling out and scattering, etc. by the flow-down guide action of the injection cylinder 1 having a required projection length. Further, the pulsating flow of the liquid 5 flowing down from the pouring cylinder 1 is sufficiently prevented by the external air flowing into the closed space 6 through the ventilation path 2.

FIG. 3 is an end view showing the state of liquid injection from the various liquid containers 3 having a can shape. However, as described above, it is possible to provide a desired steady-state flow without spilling or pulsating flow. In this case, when the open end of the bent long portion 2b of the ventilation path 2 is located in the vicinity of the container wall including the container corner farthest from the container outlet 3a as shown in the figure, the rigidity is low. Since the relative rotation of the ventilation path 2 made of the member with respect to the container 3 can be sufficiently prevented by the contact between the ventilation path 2 and the container wall, the open end of the long portion 2 b is placed in the closed space 6. It can always be positioned reliably to ensure a direct inflow of external air into its closed space 6.

After a series of liquid injection operations is completed in this way, the liquid container 3 is returned to the upright posture, and
By pushing it into the container 3 until the retaining ridge 1a on the upper end thereof comes into contact with the opening peripheral wall 3b of the spout 3a.
As described above, the dispensing cylinder 1 is almost completely housed in the container, and as a result, as shown in FIG. The outlet cylinder 1 can be hermetically sealed. Further, based on such storage of the dispensing cylinder 1 in the container, the stacking of the liquid containers 3 in a plurality of stages can be permitted without removing the dispensing cylinder or the like from the container 3. .

[0025]

As is apparent from the above description, according to the present invention, when the liquid discharging device is attached to the liquid container, the discharging tube is pulled out from the outlet of the container. The liquid injection can be sufficiently guided to prevent the liquid from spilling out and scattering, and the outside air can be passed through the ventilation path into the closed space defined in the container by such liquid injection. , The pulsating flow of the liquid can be sufficiently prevented. Moreover, here, after the pouring of the liquid is completed, by merely pushing the pouring cylinder into the container under sliding contact with the pouring port, in addition to the stacking of the liquid containers, a lid to the container pouring port is allowed. Therefore, it is not necessary to attach / detach the liquid injection device to / from the container.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing a state of attachment to a liquid container.

FIG. 3 is an end view showing a state of liquid injection from various containers.

[Explanation of Signs] 1 Discharge cylinder 2 Ventilation path 3 Liquid container 4 Container lid 5 Liquid 6 Closed space 1a, 1b Retaining ridge 2a Rise short part 2b Bend long part 3a Spout 3b Opening peripheral wall

Claims (6)

[Claims] 1. A liquid-tight fitting into a spout of a liquid container, and abutment around the spout of the liquid container on the outer periphery of both ends of a spout cylinder slidably displaceable inward and outward of the liquid container. A liquid dispensing device provided with a retaining ridge and a vent inside the dispensing cylinder, which penetrates into the liquid container and opens above the liquid level of the liquid container in the pouring position. . 2. The liquid dispensing device according to claim 1, wherein the outer diameter of the retaining ridge on the lower end side provided on the dispensing cylinder is gradually reduced toward the lower end of the dispensing cylinder. 3. The liquid dispensing device according to claim 1, wherein the air passage is bent substantially in an L-shape, and is formed of a rigid tubular member having a short rising portion and a long bending portion. . 4. The liquid dispensing device according to claim 3, wherein a short rising portion of the rigid cylindrical member is integrated with an inner peripheral surface of the dispensing cylinder. 5. The liquid dispensing device according to claim 3, wherein an intersection angle between the rising short portion and the bent long portion is an obtuse angle. 6. The liquid container according to claim 3, wherein the open end of the bent and elongated portion of the rigid tubular member is located in the liquid container in the vicinity of the container wall farthest from the spout. A liquid dispensing device as described.