JP6268377B1 - Lid and liquid container - Google Patents

Abstract

When a drink container such as a plastic bottle is directly put on a drink, the bacteria in the mouth enter the container and accelerates the decay of the drink inside. In addition to drinks, open the bottle to prevent germs from entering the container. An apparatus that is attached to a neck of a bottle or the like and supplies liquid only in the discharge direction, and includes a lower lid body 201 having an air check valve and an upper lid body 202 having a liquid check valve; The cap 203 is screwed to it. The liquid check valve restricts the flow of the liquid in the container 100 only in the discharge direction, and the air check valve is opened for the discharged volume, and the clean air filtered by the air filter 31 built in is removed. To compensate. Since the liquid check valve immediately closes when the discharge operation is stopped, the liquid in the container 100 blocks intrusion of contaminants from the outside due to backflow or the like. [Selection] Figure 1

Description

  TECHNICAL FIELD The present invention relates to a lid having a structure that is considered to be attached to a spout of a drinking container such as a bottle and to send out an internal liquid only in a discharge direction, and a liquid storage container using the lid.

  Patent Document 1 discloses a liquid container drinking apparatus that can prevent backflow of liquid in use without losing parts during cleaning. Specifically, the lid portion 20 is made of a hard synthetic resin material, and the drinking portion 30 is an integrally molded product made of a soft synthetic resin material. The drinking device 10 is attached to the drinking mouth Ba of the plastic bottle B for use by inserting the straw S into the drinking portion 30 and attaching the drinking portion 30 to the lid portion 20. In the state where the opening / closing lid 22 of the lid body portion 20 is opened, the liquid in the plastic bottle B can be drunk when the mouth is brought into contact with the flexible suction tube 30a and the liquid is sucked. The liquid once passing through the backflow prevention valve 30g and entering the suction tube 30a does not flow back into the plastic bottle B by the backflow prevention valve 30g. Further, after use, even if the sucking part 30 is removed from the lid part 20 and cleaning is performed, the sucking part 30 is composed of a single member, so that there is no possibility of losing parts. A drinking device is shown.

  Patent Document 2 describes a liquid container in which a suction mouth straw (a hard straw formed of a synthetic resin such as polypropylene) can be stored in the storage part by one-touch operation of the opening / closing lid, and the suction mouth straw can pop out of the storage part by one-touch operation. In addition, a lid of a liquid container such as a plastic bottle is shown that is a lid having a structure in which liquid water sucked up by a mouthpiece straw does not flow backward.

JP2015-160669A JP 2008-189385 A

  When drinking with a mouth directly on a liquid container such as a bottle, if you drink in several times, a part of the liquid touched in the mouth returns into the bottle, and the liquid left in the bottle decays over time due to bacteria in the mouth. Moreover, even if it does not directly open the mouth, the liquid in the container opened by opening the bottle seal touches various germs floating in the air and starts to rot.

  The lid and liquid container of the present invention for solving the above problems are a liquid container having a container main body in which a liquid is stored and a lid screwed into a neck portion of the container main body. The lid body has a lower lid portion screwed into the neck portion of the container body, an upper lid portion inserted and connected to the lower lid portion, and a cap screwed into the upper lid portion, and the lower lid portion is an air check valve. The upper lid portion 202 includes a liquid check valve. The bottles described below are container bodies such as plastic bottles and bottles.

  The remaining part of the opened bottle can be stored safely in the same state as before opening if it is plugged with a cap, and then it can be safely consumed even if divided into several times.

  In order to extend the storage period after opening the bottle, remove unnecessary bacteria from the outside air by installing a high-performance filter, oxygen scavenger, etc. in the air inflow space according to the properties of the liquid in the container. Various treatments such as reducing the oxygen concentration are possible.

  Most commercially available PET bottle cap screws have commonality regardless of the capacity of the main body, and the product of the present invention is highly versatile by using the same standard.

    If the spout is a screw for general bottles, bottles and other containers, this device is required industrially by correcting the part where this device is screwed into the target container. Can be attached to the container.

4 is an exploded vertical cross-sectional view of each part constituting the lid 200 and the bottle 100. FIG. FIG. 3 is a longitudinal sectional view of a lid 200 and a bottle 100 in a storage state with a cap 203 closed. 6 is a drawing of a mechanism in which opening / closing of an air inlet is linked to opening / closing operation of a cap 203. FIG. 2 is a longitudinal sectional view of a lid 200 and a bottle 100 showing a flow of liquid and air during supply of liquid. It is the whole external view and overhead view of the lid body 200 and the bottle 100. The second embodiment is shown. The insertion part of the lid lower part 201 is changed to the outside of the lid upper part 220. A third embodiment is shown. FIG. 5 is a longitudinal sectional view of the liquid check valve modified from a funnel shape to a planar shape.

  Hereinafter, an embodiment of the lid 200 in which the lid 200 of the present invention is attached to the bottle 100 and the liquid is supplied only in the discharge direction will be described in detail with reference to FIGS.

  FIG. 1 is an exploded vertical sectional view of each part constituting the lid 200. The lid body 200 is composed of a lid lower part 201, a lid upper part 202 and a cap 203 molded from a synthetic resin material, and functions by combining the parts. Therefore, the lid body 200 will be described from the exploded vertical sectional view of FIG.

  The lid lower part 201 has a lower casing 210, and a lower part of the lower casing 210 is provided with a female screw to be screwed to the neck of the bottle 100, and is screwed with the bottle 100 by the female screw.

  The upper part of the lower housing 210 is inserted into and connected to the upper housing 220 and includes a convex groove 16 for turning the upper housing 220 in the radial direction, a protrusion 15 for turning angle control, and a first air inlet 14.

  The lid lower part 201 constitutes an air check valve. Here, a plurality of small holes 12 are provided in the cylindrical lower inner sleeve portion 10, and a cylindrical rubber sleeve 11 attached to the lower inner sleeve portion 10 so as to cover the small holes 12 is provided.

  The lid upper part 202 has an upper casing 220, the upper casing is provided with a male screw that is screwed into the cap, and is inserted into the lower casing 210, and the concave groove 26 for turning the upper casing 220 in the radial direction; A notch 25 and a second air inlet 24 for turning angle control are provided.

  The lid upper part 202 constitutes a liquid check valve. Here, a funnel-shaped portion 22 serving as a valve seat of the liquid check valve, a cylindrical upper sleeve portion 20 extending from the tip of the funnel-shaped portion 22, a valve body 21 of a liquid check valve having elasticity such as silicon rubber, A coil spring 23, a valve rod 27, a cylinder 28 for slidably holding the valve rod, and a stay 29 for fixing the cylinder 28 to the upper housing are provided.

  The cap 203 has the same shape as a commercially available plastic bottle cap. The drinking mouth portion used in the following description refers to the upper end portion of the upper housing 220 that has been screwed into the cap 203.

  The lower housing 210 is aligned with the central axis of the upper housing 220 and the turning fitting convex groove 16 is fitted into the turning fitting concave groove 26 and joined. The lid lower portion 201 and the lid upper portion 202 are fixed in the axial direction by the fitting and joining, and can be turned in the circumferential direction, and the air check valve, the air filter 31, and the liquid check valve function. A body 200 is formed.

  FIG. 2 is a longitudinal sectional view of the lid body 200 in which the lid lower portion 201 and the lid upper portion 202 are inserted and joined and the cap 203 is tightened.

  When the lid lower portion 201 and the lid upper portion 202 are inserted and joined, the upper inner sleeve portion 20 passes through the core portion of the lower inner sleeve portion 10 of the air check valve and opens into the container 100.

  An air inflow space in which the air filter 31 is mounted is formed between the lid lower part 201 and the lid upper part 202. The air inflow space leads to a gap between the lower inner sleeve portion 10 and the upper inner sleeve portion 20.

  By installing the sealing material 13 in the gap at the end of the sleeve portion, an air inflow space 30 is formed in which outside air flows from the air inlet 24 into the air check valve 11. The sealing material 13 maintains hermeticity with respect to the turning operation of the lid upper part 201 and the lid lower part 202.

  Hereinafter, the operation of the device in the lid 200 will be described in the order of the mechanism in which the opening / closing of the air inlet is linked to the opening / closing operation of the cap 203, the operation of the air check valve, and the operation of the liquid check valve. To do.

  In FIG. 3, a description will be given of a turning angle control mechanism that performs communication between the first air inlet 14 and the second air inlet 24 in conjunction with an operation for opening and closing the cap 203.

FIG. 3A is a side external view of the lid 200 in a state where the cap 203 is tightened.
The outer case is shown with a part cut away so that the positional relationship of the upper case 220 and the lower case 210 can be understood. Communication between the first air inlet 14 and the second air inlet 24 is blocked. The end of the air inlet alignment notch 25 is in a position in contact with the air inlet alignment protrusion 15.

  3B is a cross-sectional view taken along the line BB ′ of FIG. 3A, and an end of the air inlet alignment notch 25 of the upper housing 220 is an air inlet alignment protrusion of the lower housing 210. FIG. 15 is in a position in contact with 15.

  FIG. 3 (c) is a cross-sectional view taken along the line CC ′ of FIG. 3 (a). The positions of the first air inlet 14 and the second air inlet 24 are not aligned, and communication between the air inlets is cut off. doing.

  In order to supply the liquid, in the left turn for opening the cap 203, the screw of the cap 203 and the upper housing 220 turns together without loosening at the beginning of the turn. When turning A degrees, the other end of the air inlet alignment notch 25 comes into contact with the air inlet alignment protrusion 15 and the upper housing 220 stops turning. The upper housing 220 in FIG. 3 (b) turns to a position where it is rotated counterclockwise by A degrees.

  The position of the first air inlet 14 and the second air inlet 24 is aligned at the position where the upper housing 220 is swung by A degrees, and the air inlet communicates to allow the outside air to flow in. Only the cap 203 is turned off. The upper housing 220 in FIG. 3 (c) turns to a position where it is rotated counterclockwise by A degrees.

  In the clockwise turning operation of tightening the cap 203, only the cap 203 turns at the beginning of turning. When the screw portion is tightened at the end of the operation, the upper housing 220 starts to turn together. When the end of the air inlet alignment notch 25 opposite to the left-turning abuts against the air inlet alignment protrusion 15, the upper housing 220 stops turning. The upper housing 220 rotates right by A degrees and returns to the original position in FIG.

  At the stop position of the upper housing 220, the positions of the first air inlet 14 and the second air inlet 24 are unmatched, the communication is cut off, and the inflow of air is closed. Only the cap 203 is turned by retightening. The upper housing 220 rotates right by A degrees and returns to the original position in FIG.

  The operation of the air check valve and the liquid check valve will be described with reference to FIG.

  In the state of FIG. 2 in which the cap 203 is closed, the air check valve remains closed because there is no communication of the air inlet and the air pressure does not change. The outside air can be introduced by the operation of removing the cap, but since there is no change in the air pressure, it is closed by the rubber sleeve 11 covering the plurality of small holes 12 of the lower inner sleeve portion 10.

  When the liquid in the bottle 100 flows out by the sucking operation and the air pressure in the bottle 100 is lower than the air pressure in the air inflow space 30, the rubber sleeve 11 is pushed by the differential pressure of the air and elastically deforms, and a plurality of small holes 12 is released and flows into the air inflow space 30 through the first air inlet 14 and the second air inlet 24 through which external air communicates.

  The external air that has flowed in passes through the air filter 31 mounted in the air flow space 30, and the dust in the external air is removed and clean, and the bottle passes through the plurality of small holes 12 of the lower inner sleeve portion 10. 100 flows into the body. The air check valve is a valve that regulates air only in the direction of flowing into the bottle 100.

  In the state of FIG. 2 in which the cap 203 is closed, the liquid check valve forcibly closes the valve body 21 by pressing the valve rod 22 more strongly by the cap 203, and also leaks against external force due to transportation or the like. There is no.

  When the cap 203 is removed, the valve rod 27 is no longer pressed by the cap 203, but the coil spring 23 presses the valve element 21 against the funnel 22 and continues to close. When the air pressure on the drinking mouth side is higher than the air pressure inside the bottle 100, the valve body 21 is strongly pressed by the funnel-shaped portion 22 and continues to close.

  On the other hand, when the air pressure on the drinking mouth side becomes lower than the air pressure inside the bottle 100 and the difference in air pressure becomes larger than the force of the coil spring 23 pressing the valve element 21 against the funnel-shaped portion 22, the coil spring is compressed. As a result, the valve body 21 moves away from the funnel 22 and allows the liquid 101 in the bottle 100 to flow out.

  When the liquid 101 is caused to flow out by sucking or pressing the bottle 100 and the outflow operation is stopped, the check valve is immediately closed and no back flow occurs.

  Air replenishment of the liquid spill from the air check valve is simultaneously performed during the drinking operation, and during the pressing operation, the pressing is stopped and the pressing is released, so that the outer shell of the bottle is depressed by the pressing. When the original shape is restored, the inside of the bottle becomes negative pressure, and external air is replenished.

  The air check valve is refilled with air when the air pressure inside the bottle is lower than the air pressure outside the bottle, but the difference in air pressure at the end of the air refill operation is the rubber that is the valve membrane of the check valve. In order that the sleeve 11 covers the small hole 12 of the lower sleeve portion 10 that is the valve seat and remains open, the air check valve is in a state where the air pressure in the bottle is slightly lower than equal to the air pressure of the outside air. Close.

  In FIG. 4, the operation when supplying the liquid will be described. At the beginning of the supply operation, the cap 203 is opened and removed. In conjunction with this operation, external air can be introduced through the air inlet and the forced check of the liquid check valve is released. The bottle 100 is tilted until the opening in the container 100 of the upper inner sleeve portion 20 is below the water surface, and the supply operation is performed.

When sucking to explain the function of each part when the mouth of the top lid 202 is swallowed, the air pressure on the mouth side of the liquid check valve is lower than the air pressure inside the bottle 100, The valve body 21 opens and the liquid flows out. The flow path of the flowing liquid is indicated by a thick line W.

  At the same time as the liquid flows out, the air pressure inside the bottle 100 becomes lower than the outside air pressure, so the air check valve opens the rubber sleeve 11 and allows the outside air to flow into the container 100. The external air flow path is indicated by a thick line A. During drinking, liquid and air flow simultaneously in separate channels.

  The inflow of air continues in a state where the air pressure in the bottle is low by the differential pressure necessary to open the check valve for air in response to the inflow of external air. When the intake is stopped, the liquid check valve is immediately closed, and when the air check valve equalizes the external air and the air pressure inside the bottle due to the inflow of external air, the inflow of external air stops.

  When drinking out of a cup etc. without putting a mouth directly on the drinking part of the lid upper part 202. When the bottle 100 is depressed by manually pressing the body of the bottle 100, the air pressure inside the bottle 100 becomes higher than the air pressure outside the bottle 100, the valve body 21 of the liquid check valve is opened, and the liquid flows out. The air check valve does not open because the air pressure inside the bottle is higher than the air pressure outside.

  When the bottle 100 is pressed by hand to stop increasing the air pressure inside and stop, the air pressure difference between the bottle 100 and the outside of the bottle 100 disappears, so the valve body 21 is closed.

  When the grip of the bottle 100 is released, the bottle 100 is recovered from being recessed. The air pressure in the bottle 100 is lower than the external air pressure. When the rubber sleeve 11 of the air check valve is opened and external air flows into the bottle 100 and the air pressure is equalized, the air check valve is closed and the inflow of external air is stopped. The liquid check valve continues to close.

  When the cap 203 is tightened at the end of drinking, the valve body 21 of the liquid check valve is closed by pressing the valve rod 22 with the cap 203, and the air inlet is also shut off and closed. The lid 200 is in a closed state and can be safely transported and stored without leakage of liquid or air.

  FIG. 5 shows an external view in which the lid 200 is attached to the bottle 100 and the cap 203 is tightened. FIG. 5A is an overall side view of the lid and the bottle 100. From the appearance of the lid 200, the end of the air inlet alignment notch 25 is in a position in contact with the air inlet alignment protrusion 15, and the second air inlet 24 is located inside the first air. It can be seen that there is no communication with the inlet 14. The air inlet is in a closed state.

  FIG. 5B is an overhead view of FIG. 5A, and shows the valve rod 27 of the check valve 11 for liquid, the cylinder 28 for sliding the valve rod, and the cylinder holding stay 29 just below the cap 203 in the lid upper portion 202. It is indicated by a chain line, and they are all arranged concentrically with the lid body 200.

FIG. 6 shows a second embodiment. In the first embodiment, the lower housing 210 is inserted into the upper housing 220, whereas in the second embodiment, the upper housing 220 is inserted into the lower housing 210. The air inlet interlock control method and the air check valve are the same as those in the first embodiment.

  In the second embodiment, since the lid lower portion 201 is inserted into the lid upper portion 202, the gap is upward, and it is easy to receive dust and the like. By increasing the volume of 30, there is an advantage that the capacity of the filter 31 attached to the air flow space 30 can be increased.

  FIG. 7 shows a third embodiment. In the third embodiment, the upper housing 220 and the lower housing are inserted into the lower housing 210 in the same manner as in the second embodiment.

  The liquid check valve is modified from a funnel-shaped seat and a truncated cone-shaped valve body to a donut plate-shaped valve seat and a flat disk-shaped valve body. The air inlet interlock control method and the air check valve are the same as those in the first embodiment.

DESCRIPTION OF SYMBOLS 10 Lower inner sleeve part 11 Rubber sleeve 12 Air check valve small hole 13 Seal member 14 1st air inlet 15 Air inlet matching protrusion 16 Lid fitting turning groove for lower lid part 20 Upper inner sleeve part 21 Reverse for liquid Check valve 22 Check valve seat for liquid 23 Coil spring 24 Second air inlet 25 Notch portion for aligning air inlet 26 Fitting groove for turning upper lid 27 Check valve rod 28 Valve rod sliding cylinder 29 Cylinder holding stay 30 Air Inflow Space 31 Air Filter 50 Cap Opening Display Remaining Ring 100 Container Body 101 such as Bottle Liquid 200 in Bottle 200 Lid 201 Lid Lower 202 Lid Upper 203 Cap 210 Lower Enclosure 220 Upper Enclosure A Air Flow Display W Liquid Displays the flow path of

Claims (6)

A liquid storage container comprising a container main body in which a liquid is stored and a lid body screwed into a neck portion of the container main body, wherein the lid body is a lid screwed into the neck portion of the container main body. A lower part, a lid upper part inserted and connected to the lower part of the lid, and a cap screwed to the upper part of the lid ;
The lower lid portion has a lower housing that is screwed to the neck portion, and a cylindrical lower inner sleeve portion that extends downward on the radially inner side of the lower housing, and the upper lid portion is inserted into the lower housing. An upper housing to be connected, and a cylindrical upper inner sleeve portion extending downward from the upper housing radially inward of the lower inner sleeve portion;
An annular air inflow space is defined between the lower inner sleeve portion at the lower portion of the lid and the upper inner sleeve portion at the upper portion of the lid, and air from the air inflow space to the container body is formed in the lower inner sleeve portion. Air check valve that allows the inflow of
The liquid container is characterized in that a liquid check valve for allowing the liquid to flow out from the inside of the container body to the outside is provided inside the upper inner sleeve part of the upper part of the lid . Of the lid lower portion, wherein the first air inlet provided in the lower portion skeleton, and before Symbol upper precursor of the lid upper part is provided a second air inlet, and the upper skeleton and the lower skeleton An air inflow space is defined between them, and when the cap is opened, the first air inflow port and the second air inflow port communicate with each other so that external air can flow into the air inflow space. The lid according to claim 1 and a liquid container using the lid. A turning angle control mechanism is provided in relation to the lower lid portion and the upper lid portion, and the turning angle control mechanism includes a notch portion provided in the upper housing and a protrusion provided in the lower housing. The protrusion is received in the notch, and when the cap is opened, the upper casing rotates together with the cap and the end of the notch contacts the protrusion, thereby the first When the air inlet and the second air inlet communicate with each other and the cap is closed, the cap is rotated in the closing direction. At the end of the closing operation, the upper part of the lid is rotated together with the cap. 3. The lid according to claim 2, wherein the other end of the notch is in contact with the protrusion, thereby releasing the communication state between the first air inlet and the second air inlet. And liquid storage using this Vessel. Of the lid lower part, said the lower inner sleeve part is provided with a plurality of small holes, the air check valve comprises a cylindrical rubber attached to the lower inner sleeve part so as to cover the plurality of small holes When the air pressure in the container body is reduced, the rubber sleeve is elastically deformed to release the plurality of small holes, and air from the outside flows into the first air inlet and the second air flow. The lid body according to claim 2 or 3, and a liquid storage container using the lid body, which flows into the container body through an inlet, the air inflow space, and the plurality of small holes. The upper side of the upper inner sleeve portion at the top of the lid is a funnel-shaped portion that extends in a funnel shape and is inscribed in the upper casing, and seals the air inflow space between the upper inner sleeve portion and the lower inner sleeve portion. The liquid check valve includes a valve body that is seated on the funnel-like part, a slidably mounted on the upper part of the lid, and the valve body is fixed to a tip part of the valve body. A valve spring and a coil spring for elastically deflecting the valve body toward the funnel-shaped portion. In normal times, the valve body is seated on the funnel-shaped portion by the action of the coil spring. 5. The liquid container according to claim 4, wherein when the liquid is sucked for drinking, the valve body separates from the funnel-like portion against the elastic eccentric force of the coil spring. In the closed state of the liquid check valve, the valve rod of the liquid check valve protrudes upward from the top of the lid, rotates the cap in the closing direction, and is screwed into the neck of the container body. 6. The liquid container according to claim 5, wherein an inner side of the cap acts on the valve stem and the valve body is pressed against the funnel-shaped portion of the upper inner sleeve portion.