JP3194661U - Liquid leak prevention cap for double containers - Google Patents

Abstract

Provided is a double container liquid leakage prevention cap that has a simple structure, can be used without being limited to a specific double container, and can prevent liquid leakage after extrusion. A capped cylindrical sealing plug 11 is provided that is fitted into a mouth P3 of a double container P and sealed. At the top of the sealing plug 11, a dispensing cylinder portion 12 for dispensing liquid is provided. The inner lid body 10 is provided with a fitting wall portion 11 </ b> A and a dispensing cylinder portion 12. An upper lid 20 that is detachably attached to the upper surface of the inner lid 10 is provided. The upper lid 20 is provided with a sealing portion 21 that seals the opening of the dispensing cylinder portion 12. An opening / closing valve body 30 is provided inside the sealing plug 11 so as to seal the open bottom of the sealing plug 11 so as to be freely opened and closed. An elastic member 31 is disposed on the upper surface of the on-off valve body 30. The on-off valve body 30 is provided to be movable up and down. An inside of the sealing plug 11 at the lower end of the dispensing cylinder 12 is provided with a bottomed cylindrical air reservoir 17. [Selection] Figure 1

Description

  The present invention is attached to the mouth of a double container that prevents oxidation of, for example, soy sauce and sauce, and prevents liquid leakage and splashing from the spout when the lid is applied after extruding the liquid from the container. The present invention relates to a liquid leakage prevention cap for a double container.

  Conventionally, a delami container is known as a two-layer container for storing eye drops and the like in a sterile state. This delamination container has a two-layer structure consisting of an outer layer and an inner bag, and air enters between the outer layer and the inner bag through a vent hole provided in the outer layer, and when the air pushes the inner bag, the content liquid is dropped. It has a structure.

  Patent Document 1 discloses a squeeze-type discharge container using the two-layer structure of the delamination container. This discharge container is intended to provide a squeeze type discharge container at a low cost by providing a one-way valve for introducing outside air between the outer layer and the inner layer.

  However, in the discharge container described in Patent Document 1, when the check valve is activated after the contents of the inner container are poured out, the contents remaining in the outlet are not returned to the inner container, and liquid leaks from the outlet. There was a risk of doing so.

  Therefore, Patent Document 2 discloses a discharge container that prevents liquid leakage of such a two-layered container. This discharge container is a double container having a structure for preventing the stored liquid from being oxidized. A communication hole communicating from the discharge port to the inner container is formed in the inner cap member of the discharge cap, and the valve body portion is formed in this communication hole. By arranging this, liquid leakage from the discharge port is prevented.

JP 2004-231280 A JP 2012-192975 A

  However, in the discharge container described in Patent Document 2, a communication hole that communicates from the discharge port to the inner container is formed in the inner cap member of the discharge cap, and a valve body portion that opens and closes the communication hole is disposed in the communication hole. Since the structure to be installed is adopted, the structure of the cap is extremely complicated.

  In addition, the configuration of the double container that can be used in this discharge container is limited to the double container in which the positions of the communication hole formed in the discharge cap and the communication hole formed in the double container match, so any position It was impossible to use a double container provided with a valve.

  Therefore, the present invention was created to solve the above-mentioned problems, has a simple configuration, can be used without being limited to a specific double container, and can prevent liquid leakage after extrusion. The purpose is to provide a liquid leakage prevention cap.

  In order to solve the above-mentioned problem, the first means of the present invention is that air enters between the outer container P1 and the inner container P2 from an intake hole with a check valve provided in the flexible outer container P1. The cap is attached to the mouth portion P3 of the double container P configured to prevent oxidation of the liquid contained in the inner container P2 by pressing the flexible inner container P2 with the air. The leakage prevention cap is provided with a top cylindrical sealing plug 11 that fits into the mouth P3 of the double container P and seals the mouth P3, and the liquid is poured into the top of the sealing cap 11 An inner lid body 10 provided with a cylindrical portion 12 and an upper lid body 20 provided with a sealing portion 21 that detachably attaches to the upper surface of the inner lid body 10 and seals the opening of the dispensing cylindrical portion 12. And an opening / closing valve body 30 is provided inside the sealing plug 11 so as to open and close the open bottom of the sealing plug 11. In both cases, an elastic member 31 that urges the on-off valve body 30 toward the bottom of the sealing plug 11 is arranged on the upper surface of the on-off valve body 30 so that the on-off valve body 30 can be moved up and down. The on-off valve body 30 is pressed by the pressure to push out the liquid from the heavy container P, and the bottom of the sealing plug 11 opens, so that the liquid passes through the sealing plug 11 and is poured out from the dispensing cylinder 12, and after the liquid is poured out The on-off valve body 30 is pressed by the elastic force of the elastic member 31 and moves downward from the inside of the sealing plug 11 to draw back the liquid in the dispensing cylinder portion 12 with the on-off valve body 30 that seals the bottom. In addition, the inside of the sealing plug 11 at the lower end of the pouring cylinder portion 12 is provided with a bottomed cylindrical air reservoir 17 having a gap through which liquid passes.

  In the second means, the air reservoir 17 includes a bottomed cylindrical portion 17A continuous to the extraction cylindrical portion 12, and four vertical slits 17B formed on a side surface of the cylindrical portion 17A. It is.

3rd means WHEREIN: The said sealing stopper 11 is spaced from the fitting wall part 11A fitted into the opening part P3 of the said double container P from the top part of a top cylinder shape, and this fitting wall part 11A inside. And a passage wall portion 11B provided around the opening is formed,
The dispensing tube portion 12 is formed at the top of the sealing plug 11 located inside the passage wall portion 11B, and the opening / closing valve body 30 is disposed inside the passage wall portion 11B so as to be movable up and down.
A sealing ring 13 is projected along the inner peripheral surface of the bottom of the passage wall 11B. When the peripheral edge of the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall 11B is sealed and sealed. When the on-off valve body 30 is separated from the ring 13, the liquid passes from the periphery of the on-off valve body 30 to the extraction tube portion 12.

  In the sealing plug 11 of the fourth means, a plurality of passage grooves 14 are vertically formed on the inner peripheral surface of the passage wall portion 11B so that liquid passes through the sealing plug 11 through the passage groove 14. It is configured.

  5th means WHEREIN: The said on-off valve body 30 is centered on the support shaft 33 suspended by the support arm part 15 protrudingly provided by the top lower surface of the said sealing stopper 11 so that an up-and-down sliding is possible. A disc-shaped check valve 32 extending to the periphery, and disposed between the check valve 32 and the bottom lower surface of the sealing plug 11 urges the check valve 32 toward the bottom of the sealing plug 11. It is comprised with the elastic member 31 to do.

  The elastic member 31 of the sixth means has a plate shape extending spirally upward from the central upper portion of the check valve 32, and a plurality of elastic members 31 are provided around the support shaft 33. It is arranged.

  As in claim 1 of the present invention, the opening and closing valve body 30 is pressed by the pressure that pushes out the liquid from the double container P when the liquid is dispensed, and the bottom of the sealing plug 11 opens, so that the liquid passes through the sealing plug 11. The on-off valve body 30 that is poured out from the dispensing cylinder portion 12 and after the liquid is poured is pressed by the elastic force of the elastic member 31 to move downward from the inside of the sealing plug 11 to seal the bottom. In this way, it is possible to reliably prevent the liquid leakage after the extrusion. In addition, the configuration is simple, and it is possible to use without being limited to a specific double container.

  Moreover, even when a highly viscous liquid such as soy sauce is stored by providing a bottomed cylindrical air pool 17 having a gap through which the liquid passes in the inside of the sealing plug 11 at the lower end of the dispensing cylinder portion 12. The liquid can be pulled back without leaving the liquid inside the dispensing cylinder 12.

  According to the air reservoir 17 having the bottomed cylindrical portion 17A continuous to the extraction cylindrical portion 12 and the four vertical slits 17B formed on the side surface of the cylindrical portion 17A as in claim 2. Since the air withdrawn into the portion 17A is surrounded by the liquid adhering to the vertical slit 17B due to surface tension, there is no possibility that the liquid remains in the dispensing cylinder portion 12. As a result, the contents of the double container can be selected from highly viscous liquids such as mirin, noodle soup and oil in addition to soy sauce. Moreover, when the contents are discharged by the four vertical slits 17B, they can be discharged from the dispensing cylinder portion 12 in a certain direction.

  As in claim 3, when the peripheral edge of the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall portion 11 </ b> B is sealed, and when the on-off valve body 30 is separated from the sealing ring 13, By configuring so that the liquid passes through the outlet tube portion 12, leakage after extrusion can be prevented even if the configuration is simple.

  According to the fourth aspect of the present invention, the sealing plug 11 has a plurality of passage grooves 14 which are vertically recessed on the inner peripheral surface of the passage wall portion 11 </ b> B, and the liquid passes through the sealing plug 11 through the passage grooves 14. With this configuration, the flow rate of the liquid passing through the sealing plug 11 is regulated by the passage groove portion 14. As a result, the liquid is not suddenly discharged and stable dispensing can be performed.

  As in claim 5, the on-off valve body 30 includes a support shaft 33 that is slidably supported by a support arm portion 15 projecting on the bottom surface of the top of the sealing plug 11, and a support shaft 33 that surrounds the support shaft 33 as a center. A disc-shaped check valve 32 that is extended, and an elastic member that is disposed between the check valve 32 and the top bottom surface of the sealing plug 11 and biases the check valve 32 toward the bottom of the sealing plug 11. 31, the on-off valve body 30 has a simple configuration, and the on-off valve body 30 moves by the amount of pushing the double container P, so that the liquid flow rate can be finely adjusted. .

  As in claim 6, the elastic member 31 has a plate shape extending spirally upward from the center upper portion of the check valve 32, and a plurality of elastic members 31 are arranged around the support shaft 33. As a result, each elastic member 31 can press the check valve 32 uniformly.

  As described above, according to the present invention, there are various industrially useful effects such as a simple configuration, which can be used without being limited to a specific double container, and can prevent liquid leakage after extrusion. Is.

It is sectional drawing of the state which showed one Example of this invention and closed the cap body. It is a perspective view which shows one Example of the on-off valve body of this invention. It is sectional drawing of the state which showed one Example of this invention and opened the cap body. It is sectional drawing which shows the state which extrudes a liquid from this invention. (A), (b) is an enlarged sectional view of a main part showing the movement of the on-off valve body of the present invention. It is a perspective view which shows the inside of the inner cover body which removed the on-off valve body from this invention. It is a perspective view of the state where one example of the present invention was shown and the cap body was opened. It is a partially cutaway perspective view showing an air pocket of the present invention. It is the perspective view seen from the bottom which shows the air pocket of this invention.

  Embodiments of the present invention will be described below. The liquid leakage prevention cap of the present invention is attached to the mouth portion P3 of the double container P configured to be stored while preventing the oxidation of a liquid having a low viscosity such as soy sauce, olive oil, and cosmetics.

  This double container P is a squeeze-type double container using a two-layer structure of a delamination container composed of a flexible outer container P1 and a flexible inner container P2. That is, air enters between the outer container P1 and the inner container P2 from the intake hole with a check valve provided in the flexible outer container P1, and this air presses the flexible inner container P2. It is configured to prevent oxidation of the liquid stored in the inner container P2.

  The liquid leakage prevention cap of the present invention includes an inner lid body 10, an upper lid body 20, and an on-off valve body 30 (see FIG. 1). The inner lid body 10 is a member that fits into the mouth portion P3 of the double container P and seals the mouth portion P3, and has a sealing plug 11 that has a top tube shape, and a note provided on the top portion of the sealing plug 11. And a protruding tube portion 12. And it is comprised so that a liquid may be poured out from the sealing stopper 11 through the extraction cylinder part 12 (refer FIG. 3).

  The illustrated sealing plug 11 forms a cylindrical fitting wall portion 11A and a passage wall portion 11B from the top portion of the top tube shape (see FIG. 3). The fitting wall portion 11A is fitted into the mouth portion P3 of the double container P to seal the mouth portion P3. In the illustrated example, the inner lid body 10 is shown in which the fitting wall portion 11A and the fitting portion 16 that is externally fitted to the screw portion of the mouth portion P3 are integrally formed. It is also possible to form the inner lid body 10 separately from the portion 16.

  The passage wall portion 11B is a portion that is provided around the inside of the fitting wall portion 11A with a space therebetween, and is formed with a dispensing cylinder portion 12 at the top of the sealing plug 11 that is located inside the passage wall portion 11B. (See FIG. 6). Therefore, the liquid in the double container P passes through the sealing plug 11 from the inside of the passage wall portion 11B and is poured out from the dispensing cylinder portion 12 (see FIG. 5 (A)).

  In the illustrated example, an opening / closing valve body 30 is arranged inside the passage wall portion 11B so as to be movable up and down (see FIGS. 3 and 4). On the other hand, a sealing ring 13 is provided so as to protrude along the inner peripheral surface of the bottom of the passage wall 11B. When the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall portion 11B is sealed (see FIG. 3).

  Furthermore, when the on-off valve body 30 is separated from the sealing ring 13, the liquid passes from the periphery of the on-off valve body 30 to the dispensing cylinder portion 12 (see FIG. 4). In the illustrated sealing plug 11, a plurality of passage grooves 14 are vertically recessed on the inner peripheral surface of the passage wall portion 11B (see FIG. 6). The liquid passes through the sealing plug 11 through the passage groove 14.

  And the inside of the sealing stopper 11 of the lower end of the extraction | pouring cylinder part 12 is provided with the bottomed cylindrical air reservoir 17 provided with the clearance gap which lets a liquid pass (refer FIG. 9). The air reservoir 17 prevents the liquid from returning to the dispensing cylinder portion 12 by holding the air in the air reservoir 17 after the liquid is drawn back from the dispensing cylinder portion 12.

  That is, when the liquid has a viscosity such as soy sauce, there is a phenomenon that the liquid drawn back from the extraction cylinder 12 returns to the extraction cylinder 12 again. In this phenomenon, when the liquid is pulled back from the dispensing cylinder part 12, the inside of the dispensing cylinder part 12 is emptied and the air is filled, and this air stays under the dispensing cylinder part 12 to prevent the liquid from flowing backward. To do. However, when the liquid has viscosity, this air does not stay below the dispensing cylinder 12 but diffuses to other positions of the sealing plug 11, and the liquid again flows into the dispensing cylinder 12. I understood.

  Therefore, an air reservoir 17 is provided in the sealing plug 11 at the lower end of the dispensing cylinder portion 12 to prevent the movement of air and prevent the back flow of the liquid. The illustrated air reservoir 17 is provided with a bottomed cylindrical portion 17A continuous to the extraction cylindrical portion 12, and four vertical slits 17B formed substantially radially on the side surface of the cylindrical portion 17A ( (See FIG. 8). By providing four vertical slits 17B in a substantially radial manner, a rectifying effect when discharging the contents was obtained. That is, when the contents are discharged, it can be discharged from the dispensing tube portion 12 in a certain direction.

  The upper lid body 20 is a member that is detachably attached to the upper surface of the inner lid body 10, and includes a sealing portion 21 that seals the opening portion of the dispensing cylinder portion 12 (see FIG. 7). The illustrated sealing part 21 is inserted into the extraction cylinder part 12. Therefore, when the liquid remains in the inside of the extraction | pouring cylinder part 12, when inserting this sealing part 21, it will scatter to circumference | surroundings. Therefore, in this invention, it is comprised so that the liquid in the extraction pipe | tube part 12 may be drawn back in the inner cover body 10 using the on-off valve body 30 mentioned later.

  The illustrated upper lid 20 is provided integrally with the inner lid 10 via a hinge 22. The upper lid 20 is not limited to the illustrated example, and can be formed separately from the upper lid 20. Moreover, the structure of the sealing part 21 is not restricted to the example of illustration, For example, it is also possible to form so that it may fit in the opening | mouth part of the extraction | pouring cylinder part 12. FIG.

  The on-off valve body 30 is a member that seals the opened bottom of the sealing plug 11 so as to be openable and closable and prevents the liquid in the double container P from being oxidized, and is disposed inside the sealing plug 11. The illustrated on-off valve body 30 includes an elastic member 31, a check valve 32, and a support shaft 33 (see FIG. 2). The support shaft 33 is a part that is suspended so as to be slidable up and down on the support arm part 15 protruding from the top lower surface of the sealing plug 11 (see FIG. 3). The illustrated support arm portion 15 is a substantially top cylindrical member having a vertical slit formed on the side surface (see FIG. 6). Further, a check valve 32 is extended around the support shaft 33. In the illustrated example, three elastic members 31 are provided, but the number of elastic members 31 can be arbitrarily changed.

  A bottomed cylindrical holding cylinder 34 is formed around the support shaft 33 (see FIG. 3). The holding cylinder 34 is configured to slide up and down at a certain position by preventing the tilt when the support shaft 33 moves up and down by sliding in a state of surrounding the outer periphery of the support arm 15. It is.

  The check valve 32 is a member having a disk shape and a peripheral edge abutting on the sealing ring 13 of the passage wall portion 11B so as to be freely opened and closed. An elastic member 31 is disposed between the check valve 32 and the bottom lower surface of the sealing plug 11 (see FIG. 2).

  The elastic member 31 is constituted by an elastic material that urges the check valve 32 toward the bottom of the sealing plug 11. The illustrated elastic member 31 has a plurality of plate shapes that spirally extend upward from the upper surface of the holding cylinder 34 (see FIG. 2). Further, the elastic member 31 is disposed around the support shaft 33 and is provided so that each elastic member 31 presses the check valve 32 uniformly.

  When the liquid is poured out from the liquid leakage prevention cap of the present invention, the on-off valve body 30 is pushed upward by the pressure for pushing out the liquid from the double container P, and the check valve 32 is separated from the sealing ring 13 (see FIG. 4). ). When it does so, the bottom part of the distribution | circulation wall part 11B of the sealing plug 11 will open, and a liquid will pass through the sealing plug 11 and will be poured out from the extraction | pouring cylinder part 12 (refer Fig.5 (A)).

  On the other hand, after the liquid has been dispensed, the opening / closing valve body 30 is pressed downward by the elastic force of the elastic member 31, and the check valve 32 moves downward from the inside of the sealing plug 11 to abut against the sealing ring 13. Then, the bottom of the circulation wall 11B is sealed to prevent the liquid in the double container P from being oxidized (see FIG. 3). At this time, the liquid in the extraction cylinder part 12 is pulled back into the sealing plug 11 by the movement of the check valve 32 (see FIG. 5B). At this time, if the liquid is viscous, the air in the dispensing cylinder 12 does not stay below the dispensing cylinder 12 but diffuses to other positions in the sealing plug 11 and again in the dispensing cylinder 12. Since the liquid may flow in, the movement of the air is prevented by the air reservoir 17 provided inside the sealing plug 11 of the dispensing cylinder portion 12 to prevent the back flow of the liquid.

  In addition, the structure of this invention is not limited to the example of illustration, Each structure, such as the inner cover body 10, the upper cover body 20, and the on-off valve body 30, should be changed arbitrarily in the range which does not change the main point of this invention. Can do. Further, the container to which the present invention liquid leakage prevention cap is attached is not limited to the double container, and can be attached to other containers.

P Double container P1 Outer container P2 Inner container P3 Mouth part 10 Inner lid body 11 Seal plug 11A Fitting wall part 11B Passing wall part 12 Outlet tube part 13 Sealing ring 14 Passing groove part 15 Supporting arm part 16 Fitting part 17 Air Pool 17A Cylindrical portion 17B Vertical slit 20 Upper lid body 21 Sealing portion 22 Hinge 30 On-off valve body 31 Elastic member 32 Check valve 33 Support shaft 34 Holding cylinder

Claims (6)

Air enters between the outer container and the inner container through an intake hole with a check valve provided in the flexible outer container, and the air is accommodated in the inner container by pressing the flexible inner container. A cap attached to the mouth of a double container configured to prevent liquid oxidation, wherein the liquid leakage prevention cap is inserted into the mouth of the double container and seals the mouth. An inner lid provided with a cylindrical sealing plug and having a dispensing cylinder portion for pouring liquid onto the top of the sealing plug; and a removably attached to the upper surface of the inner lid body; And an upper lid body having a sealing portion for sealing the opening of
An open / close valve body for opening and closing the open bottom portion of the seal plug is provided inside the seal plug, and an elastic member for biasing the open / close valve body toward the bottom portion of the seal plug is disposed on the upper surface of the open / close valve body. The valve body can be moved up and down
When the liquid is poured out, the opening and closing valve body is pressed by the pressure that pushes the liquid out of the double container, and the bottom of the sealing plug opens, so that the liquid passes through the sealing plug and is poured out from the dispensing cylinder.
After the liquid is poured out, the on-off valve body is pressed by the elastic force of the elastic member, and moves downward from the inside of the sealing plug, and the on-off valve body that seals the bottom part is configured to draw back the liquid in the dispensing cylinder part,
A liquid leakage prevention cap for a double container, characterized in that a bottomed cylindrical air reservoir having a gap through which a liquid passes is provided in the sealing stopper at the lower end of the dispensing cylinder.   2. The liquid leakage prevention for a double container according to claim 1, wherein the air pool includes a bottomed cylindrical portion continuous with the extraction cylindrical portion and four vertical slits formed on a side surface of the cylindrical portion. cap.   The sealing plug includes a fitting wall portion that fits into the mouth portion of the double container from a top portion of a tubular shape, and a passage wall portion that is provided around the inside of the fitting wall portion with a space therebetween. The pouring tube portion is formed at the top of the sealing plug located inside the passage wall portion, and the on-off valve body is disposed inside the passage wall portion so as to be movable up and down. When a sealing ring is projected along the inner peripheral surface of the opened bottom, and the peripheral edge of the on-off valve body abuts on the sealing ring, the bottom of the passage wall is sealed, and the on-off valve body is separated from the sealing ring. The liquid leakage prevention cap for double containers according to claim 1, wherein the liquid is configured to pass from the periphery of the on-off valve body to the extraction tube portion.   4. The sealing plug according to claim 3, wherein a plurality of passage grooves are vertically recessed in the inner peripheral surface of the passage wall, and the liquid passes through the sealing stopper through the passage groove. Liquid leak prevention cap for heavy containers.   The on-off valve body includes a support shaft that is suspended up and down slidably on a support arm projecting from the bottom surface of the top of the sealing plug, and a disc-shaped check that extends around the support shaft. 4. The valve according to claim 1, further comprising: a valve; and an elastic member disposed between the check valve and a bottom lower surface of the sealing plug and biasing the check valve toward the bottom of the sealing plug. Liquid leak prevention cap for heavy containers.   6. The elastic member according to claim 5, wherein the elastic member has a plate shape extending spirally upward from a central upper portion of the check valve, and a plurality of the elastic members are arranged around the support shaft. Liquid leak prevention cap for heavy containers.

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