JP5033877B2 - Versatile closing device for vacuum vessels - Google Patents

Description

  The present invention relates to a closing device (closure) for a vacuum vessel, and in particular, for a vacuum vessel in which a vacuum is formed inside the vessel because the air is discharged to close the vessel. The present invention relates to a closing device.

Generally, as food storage means for preventing food deterioration and storing food for a long time, a method using a cold storage technique and a method using a vacuum technique are known.
The present invention relates to the latter.

In general, food and cooked foods are packed with wrapping paper or vinyl paper and stored in a refrigerator such as a refrigerator.
However, the method using the cooling technique requires separate refrigeration equipment and electric power, which increases the cost.
In addition, since the cooling technology has a limit in preventing contact between food and air, the food cannot be effectively stored for a long time.
Specifically, food can be stored in the refrigeration equipment for a specified period of time, but in the long term food products and cooked food stored in the refrigeration equipment are oxidized and deteriorated due to the air contained in the wrapping paper. Therefore, it is impossible to store in the refrigeration equipment for a long time.

In addition, the structure of the conventional food container which puts a foodstuff in a storage container, closes it with a closing device, and makes the said container airtight is simplified.
Accordingly, the food in the container is not easily spoiled or deteriorated due to bacterial propagation, and can be stored in the conventional food container for a long time.

  As a method using a vacuum technique, a ring-shaped packing attached to the rim of the soft part of the container body that contacts the closing device so as to forcibly exhaust the air inside the container and form a vacuum state in the container. A vacuum vessel has been developed.

  However, since the degree of vacuum inside the conventional vacuum container is very low, the conventional vacuum container is a simple airtight container for preventing contact between the contents stored in the container and external air. It only functions as.

  Therefore, since it is limited and difficult to store the contents in the conventional vacuum container for a long time, it is true that the reliability and satisfaction of use of such a vacuum container are low.

In addition, once the closure device is closed so as to keep the container airtight, it is not easy for the user to open the closure device, and the user must apply great force to the closure device to open the container. Don't be.
Therefore, the use of such a container is extremely inconvenient.

A user may be inadvertently injured when applying great force to the closure device to open the container.
In this way, excessive force is applied to the closure device when opening the closure device, so even if the user opens the closure device in such a difficult way as to apply an impact force or rocking force to the container, The food in the container may be scattered or, worse, pop out of the container.
Therefore, the conventional vacuum container cannot provide functions and effects that can be satisfied by the user.

Further, compared to the structure of the ring-shaped packing that is attached to the portion where the container body and the closing device are engaged so as to maintain an airtight state, the portion to which the packing is attached includes the attachment groove and the latch claw. Are adjacent to each other and are connected to each other at the same time, so that the packing is inserted into the mounting groove through the latch claw and is locked to the latch claw so that the packing is not separated from the mounting groove. Yes.
Therefore, it is very difficult to form a mounting portion on which the packing is mounted.
Further, once the packing is mounted on the packing, the packing is not easily separated, so that it is difficult to remove foreign matter caught between the packing and the mounting portion.

Therefore, a container having a high degree of vacuum and convenient has been developed.
In particular, since food can be stored for a long time in a vacuum state, a vacuum container having a vacuum means that can easily form a vacuum state inside the container and store the food in a vacuum state has recently been developed. .

Such a vacuum vessel includes a vacuum vessel having a valve that is attached to a closure device and exhausts air.
The vacuum vessel has a complicated structure, and is formed in a closing device, and has a first recessed groove having a first vent formed by drilling a lower surface so as to communicate with the atmosphere, and the first vent A suction pad that has a protrusion portion that is positioned in the first recessed groove and is provided separately on the upper surface thereof, and a pull-in groove that engages with the separation protrusion portion so as to retract the separation protrusion portion. And a resilient member interposed between the vacuum release button and the suction pad.
Such a conventional vacuum vessel has a complicated structure in which a plurality of components are connected and connected to each other, thereby complicating the manufacturing process and the assembling process.
Therefore, assembly productivity is reduced.

  Further, since a large number of parts constitute the structure of the valve, the manufacturing cost of the vacuum container is high and the price competitiveness is low.

  Furthermore, since the conventional vacuum container does not include a device for identifying whether the inside is a vacuum, it is difficult for a user to identify the vacuum state of the container.

  Therefore, the present invention has been made in view of the above-mentioned problems, and the present invention provides a versatile closing device for a vacuum vessel having a simple structure valve disposed in the closing device.

  The present invention also provides a check valve formed as a single part and a packing that is vacuum-fitted in the soft part of the closing device so as to improve the price competitiveness by improving the assemblability and reducing the manufacturing unit price. And a versatile closure device for a vacuum vessel.

  Furthermore, according to the present invention, the packing is brought into close contact with the container body only by the user pressing the closing device, and at the same time, a vacuum state is formed by discharging the internal air by the check valve. A versatile closure device for a vacuum vessel is provided.

  According to the present invention, there is provided a multipurpose closing device for a vacuum container that opens and closes an inlet of the container body having a space for containing contents, and the closing device includes a closing body that opens and closes the inlet of the container body. A closing body having a valve mounting portion, an air hole, and a packing mounting groove formed inside a rim of the closing body, and a body surrounding the air hole so as to be connected to the valve mounting portion Including a connecting part formed in the part, surrounding the air hole so as to discharge air inside the container body through the air hole during vacuum operation, and preventing external air from flowing into the container A check valve, a packing portion that is inserted into the packing mounting groove and mounted, and a contact portion that extends from a lower portion of the mounting portion toward the inlet portion of the container body, In response to the downward movement of the closing body, the contact portion Wherein is included the packing is in close contact with the inlet portion of the container body so as to form a vacuum in the interior serial container.

  The check valve further includes a degree-of-vacuum display portion that protrudes and is recessed from the body portion so as to display a vacuum state when a vacuum operation is performed inside the vacuum vessel.

  The multipurpose closing device for the vacuum vessel includes a date display unit that is marked as a numerical code on the closing body while surrounding a peripheral portion of the check valve, and correspondence storage of the contents shown on the date display unit And a date indicator that protrudes from the body of the check valve to mark the date or is marked on its surface, wherein the check valve has its date indicator. It is preferable to rotate around the connecting portion so that the storage date can be pointed out.

  In addition, an elastic ridge is formed upward close to an end of the contact portion of the packing, a contact surface is formed on the inner side of the closing body corresponding to the elastic ridge, and the elastic ridge is formed with the contact surface. Further, when the closing device is in an airtight state, the elastic bulge allows the closing body to be lifted while returning to the previous state after being in close contact with the contact surface so as to compress the contact surface. It is also preferable.

  In addition, the contact surface may be a contact bulge that contacts a contact portion of the packing when the closing body moves downward so as to prevent external air from flowing into the hollow space between the packing and the closing body. It is also preferable to have

  The vacuum degree display unit includes one or both of a low vacuum degree display unit that displays a low vacuum state inside the container and a high vacuum degree display unit that displays a high vacuum state inside the container. Also good.

  The multipurpose closing device for the vacuum vessel may include a handle having a cylindrical shape and protruding from a body portion of the check valve.

  The closing body has a valve mounting recess formed at the center of the closing body so that the check valve can be safely seated and mounted, and the check valve is slightly spaced from the bottom of the valve mounting recess. And a central protrusion that protrudes from the bottom of the valve mounting recess so that the check valve can smoothly rotate and move in the vertical direction. Preferably, the mounting portion is formed at the center of the central protrusion, and the air hole is formed along a side surface of the central protrusion with a linear shape.

  The check valve is preferably formed as a single component so that the body part, the connecting part, the low vacuum degree display part, and the high vacuum degree display part are integrally formed.

  Silicon may be used as a material for the check valve and the packing.

  The hook-shaped pressure protrusion is preferably formed at the end of the packing mounting portion.

As described above, the multipurpose closing device for a vacuum vessel according to the present invention includes a check valve formed as a single part and a packing vacuum-fitted to the lower part of the soft part of the closing device. Easy to assemble.
Therefore, assemblability and productivity can be improved.
Thereby, the reduction effect of the manufacturing unit price which improves price competitiveness is acquired.

In addition, since the check valve is formed as a single part, there is no concern about trouble in use or damage.
Further, in the packing assembly structure, since the packing is mounted by using a vacuum force without a latch claw, the packing can be easily attached and detached. Therefore, assemblability can be improved and cleaning is easy.
Moreover, the flow state and discharge state of air can be easily confirmed.

Thus, according to the present invention, when the user presses the closing device, the packing is in close contact with the container body so that the internal air is discharged by the check valve to form a vacuum state.
Therefore, the user can easily and easily store the contents in a vacuum state or take out the contents, thereby enhancing the convenience of use.
As a result, the user can effectively obtain satisfaction and reliability of use.

Moreover, the closing device for a vacuum container according to the present invention includes a low vacuum degree display unit and a high vacuum degree display unit arranged in the check valve.
Therefore, since it is possible to display a low vacuum degree and a high vacuum degree according to the vacuum state inside the container, the contents can be stored in an appropriate vacuum state according to the type of the contents in the container, And the state of the contents can be easily confirmed.

  In addition, since the present invention includes a check valve that also has a function of displaying the date, there is an advantage that the storage date can be displayed so that the user can easily confirm the date.

  Further, by adopting the evacuation apparatus invented by the present inventor, a high vacuum degree can be easily formed inside the container, so that foods requiring a high degree of vacuum can be stored.

  In the present invention having the above-mentioned advantages, food such as side dishes is put in the container, and the air inside the container is exhausted so as to maintain a vacuum state, thereby keeping the contents for a long time without deterioration or spoilage. .

Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same components are denoted by the same reference numerals throughout the drawings.
The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
1 is a perspective view illustrating an embodiment of a multipurpose closing device for a vacuum vessel according to the present invention; FIG. 2 is an exploded perspective view illustrating an embodiment of a multipurpose closing device for a vacuum container according to the present invention; It is sectional drawing along the AA line of FIG. It is a diagram illustrating the operation of the multipurpose closure device for the present vacuum vessel in a vacuum-tight state, It is a diagram illustrating the operation of the multipurpose closure device for the present vacuum vessel in a vacuum-tight state, It is a diagram illustrating the operation of the multipurpose closing device for the present vacuum vessel in an open state, It is a diagram illustrating a mounting method of packing in the multipurpose closing device for the present vacuum vessel, It is a diagram illustrating a mounting method of packing in the multipurpose closing device for the present vacuum vessel, It is a perspective view illustrating a date indicator of a check valve in the multipurpose closing device for the present vacuum vessel in use, FIG. 10 is a top view illustrating a date display portion of the check valve shown in FIG. 9; It is sectional drawing which illustrates another embodiment of the non-return valve in the multipurpose closing device for vacuum vessels which concerns on this invention, FIG. 2 is a cross-sectional view illustrating a vacuum vessel employing a multipurpose closing device for a vacuum vessel according to the present invention that is used in a high vacuum state by a vacuum device; FIG. 6 is a perspective view illustrating another embodiment of a multipurpose closure device for a vacuum vessel according to the present invention; It is sectional drawing along the BB line of FIG. FIG. 6 is a perspective view illustrating another embodiment of a multipurpose closure device for a vacuum vessel according to the present invention; It is sectional drawing which illustrates another embodiment of this invention, FIG. 17 is a cross-sectional view of the multipurpose closing device for the vacuum vessel shown in FIG. 16 in a state where the closing device for the vacuum vessel is pressed.

  Hereinafter, exemplary embodiments according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating an embodiment of a vacuum container employing a multipurpose closing device for a vacuum container according to the present invention, wherein the vacuum container is in an assembled state, and FIG. 2 is an exploded perspective view of FIG. FIG.
FIG. 3 is a cross-sectional view taken along line AA in FIG.

In the present embodiment, the vacuum container having a rectangular box shape will be described. The shape of the vacuum container is a polygonal box shape such as a triangular box shape, a hexagonal box shape, and an octagonal box shape, or a cylindrical box shape. It may be.
The present invention has no shape limitation.

  As shown in the figure, the closure device for the vacuum vessel is assembled to the opening inlet portion 12 of the container body 10 having a space for storing contents, for example, food, so that the inlet portion 12 can be opened and closed. And a check valve 30 and a packing 40 mounted on the closure 20 to control air flow and discharge.

The said container main body 10 has a rectangular box shape, Preferably, it has a part which expands gradually toward the upper direction from the bottom part.
The container body 10 is made of a solid material that exhibits resistance under vacuum pressure, and the material of the container body 10 may preferably be a material made of plastic or glass having excellent pressure resistance.

The closing body 20 has a valve mounting recess 22 that is recessed in the center so as to receive the check valve 30, and a connecting hole 22-1 that enables assembly of the check valve 30 is the center of the valve mounting recess 22. Formed.
The valve mounting recess 22 is preferably configured to be recessed when forming a circular shape having a region where the check valve 30 can be received, and the connection hole 22-1 extends from the bottom surface of the valve mounting recess 22. It is formed at the center of the central protrusion 22-2 that protrudes to a predetermined height.
The connection hole 22-1 is a valve assembly part that allows the check valve 30 to be assembled, and can be easily changed to another shape such as a raised shape.
This is because it is sufficient that the connecting hole 22-1 has a shape that allows the check valve 30 to be assembled with the closing body 20 so as to perform its own function.

The central protrusion 22-2 has a function of allowing the check valve 30 to rise up to a predetermined height from the bottom surface of the valve mounting recess 22 and supporting the check valve 30.
Therefore, the check valve 30 can be easily elastically moved in the lower direction and the upper direction according to the operating pressure.
In particular, the central protrusion 22-2 has an air hole 24 formed on a side surface thereof.
Accordingly, when the closing device is in an airtight state, air inside the container 1 is discharged through the air hole 24 so as to form a vacuum state in the container 1, and when the closing device is in an open state, External air flows in through the air holes 24 so as to release the vacuum state of the container 1.
This operation will be described in more detail in the operation description of such a vacuum vessel closing device.

As shown in FIG. 2, the air hole 24 is formed along a side surface of the central protrusion 22-2 in a substantially linear shape, and has a structure similar to a human mouth.
Therefore, a unique sound is generated in the air hole 24 during the inflow and outflow of air.

The closing body 20 has a spherical shape formed from the valve mounting recess 22 to the outer peripheral surface thereof.
Specifically, the spherical portion 26 includes a central portion adjacent to the valve mounting recess 22 having a ridge-like projection shape as compared with the outer peripheral side surface thereof.
Thus, the closing body 20 is formed in a spherical shape so that the closing body 20 has excellent pressure resistance that can withstand the high vacuum inside the container.
The spherical portion 26 has a rim 28 formed on the outer peripheral surface while extending.

As shown in the cross-sectional view of FIG. 3, the rim 28 of the closing body 20 is bent downward in a wing shape so as to cover a predetermined portion of the inlet portion 12 of the container body 10.
In particular, since the packing 40 is attached to the inside of the rim 28 of the closing body 20, the packing 40 is provided on the inner surface of the inlet portion 12 of the container body 10 so that the container 40 is kept airtight when the container is airtight. It can be in close contact with.

Since the container 1 has a rectangular box shape, the packing 40 also has a shape corresponding to the inlet portion 12 of the container body 10 to which the packing 40 is in close contact, that is, a rectangular belt shape or a rectangular ring shape.
The packing 40 includes a mounting portion 42, which is curved so as to be in close contact with the vertical inner surface and the inner surface of the inlet portion 12 of the container body 10, and is substantially laterally outward from the mounting portion 42. And a contact portion 44 extending toward the surface.
The contact portion 44 has a thickness that gradually decreases toward an end thereof so as to have excellent elastic force and flexibility.
Therefore, the contact portion 44 can be in close contact with the inner surface of the container body 10.

Further, the elastic ridge 44-1 protrudes upward from the periphery of the end of the contact portion 44.
Accordingly, the elastic ridge 44-1 is compressed by the lowering of the closing body 20 when the closing device is airtight, but is also compressed when the closing device is pushed by the user.
When the user's operating force is removed, the elastic ridge 44-1 returns slightly while moving the lowered closing device upward, so that the air inside the container can be expanded.
Therefore, the elastic ridge 44-1 serves to form a vacuum inside the container. The elastic bumps 44-1 are formed in a conical shape or a horn shape on the contact portion 44 at a predetermined interval.
Preferably, at least one elastic ridge is formed on each surface of the packing 40 having a rectangular belt shape, and preferably, the elastic ridge can be formed in a belt shape during chamfering of the packing 40.
A flat contact surface 28-2 is provided on the elastic ridge 44-1 of the closing body 20 so that smooth operation of the elastic ridge 44-1 and easy contact with the contact surface 28-2 are possible. Formed on the corresponding inner surface.

A hook-shaped pressure projection 42-1 is formed at the end of the mounting portion 42 of the packing 40.
The hook-shaped pressurizing protrusion 42-1 increases the elastic force so as to ensure a high contact force while being inserted into the packing mounting groove 28-1, thereby increasing the degree of vacuum.
Thus, the packing mounting groove 28-1 is formed inside the rim 28 of the closing body 20 so that the packing 40 can be mounted.

As shown in FIG. 3, the packing mounting groove 28-1 has a shape that opens downward.
Therefore, when the mounting portion 42 of the packing 40 is pushed upward and inserted, it can be easily mounted in the packing mounting groove 28-1.
At this time, when the mounting portion 42 of the packing 40 is completely inserted into the packing mounting groove 28-1, the mounting portion 42 comes into close contact with the inner surface of the packing mounting groove 28-1 and the packing mounting groove 28-1. The air of -1 is completely exhausted to form a vacuum, thereby maintaining a strong coupling force due to the vacuum pressure.
According to such vacuum mounting, when the pressure for separating the packing 40 from the packing mounting groove 28-1 is equally applied to the packing 40, the packing 40 is not easily separated from the packing mounting groove 28-1.
When the user pulls out part of the packing 40 with his / her fingers so as to release the vacuum state and then gradually separates the packing 40 from the packing mounting groove 28-1, the packing 40 is removed from the packing mounting groove 28-1. Easy separation from -1.

Therefore, in the normal operation of opening and closing the closing device on the container body 10, pressure is equally applied to the entire area of the packing 40 so that the packing 40 does not separate.
When the user needs to separate the packing 40 from the packing mounting groove 28-1, for example, when the user cleans the packing 40-1, the user can use his / her finger to press a part of the packing 40 so as to apply pressure to that point. Therefore, the user can easily separate the packing 40 from the packing mounting groove 28-1 and clean it.
Since this is the same as the principle of the suction cup, it will be apparent to those skilled in the art from the principle of attaching and detaching the suction cup.

The check valve 30 has a shape substantially similar to an umbrella shape, and a connecting ridge 34 inserted and engaged with the connecting hole 22-1 of the closing body 20 protruding from the center of a spherical body portion 32 is formed by It is inserted into and engaged with the connecting hole 22-1 of the closing body 20.
The connection protuberance 34 functions as a connection part integrated with a valve connection part such as the connection hole 22-1 and can be changed to various shapes such as a hole or a groove according to the shape of the valve connection part.
An inclined latch claw 34-1 is formed at the bottom of the connecting ridge 34. The inclined latch claw 34-1 protrudes in the circumferential direction and is tapered so that the diameter of the latch claw 34-1 decreases in the longitudinal direction (insertion direction) toward the lower end thereof. The latch claw 34-1 can be easily inserted.

The check valve 30 is made of an elastic material, preferably made of silicon or rubber, and more preferably made of silicon that is not discolored or corroded by outside air.
Thus, since the check valve 30 is made of a material having excellent contact, the hemispherical body part 32 surrounds the air hole 24 so as to prevent air flow. The soft part is in close contact with the surface of the corresponding closing body 20.
Thus, since the body portion 32 of the check valve 30 surrounds the air hole 24, air is discharged through the air hole 24 while pushing the soft portion of the body portion 32 that is in close contact with the closing body 20. The

As an additional explanation, because of the structure of the check valve 30, when the air inside the container pushes the body part 32 so that the soft part on the side of the body part 32 that is in close contact with the closing body 20 is lifted The air is exhausted through a gap formed by the lifting and softening portion.
Note that the pressure applied to the body portion 32 by the external air is applied toward the side surface of the closing body 20 so that the body portion 32 is gradually pressed against the closing body 20, thereby causing the inflow of the outside air. To prevent.
Therefore, the check valve 30 allows air to flow in a single direction (a direction in which the internal air is discharged), and a flow of air in the direction opposite to that direction (inflow of external air). Can also be prevented.
Thus, to separate the closure device from the vacuum tight, airtight container, the user can set the check valve 30 to release the vacuum pressure by allowing external air to flow into the container. Force to lift slightly.
As a result, the closure device can be easily opened.

The check valve 30 includes a low vacuum degree display part 36 a and a high vacuum degree display part 36 b formed in the hemispherical body part 32.
The low vacuum degree display part 36a protrudes from the surface of the body part 32 while forming a hemispherical shape having a low height.
When a vacuum is formed inside the container body 10 by closing the closing device, the low vacuum hemispherical surface portion 36a-1 is sucked inward and deformed into a concave shape.
Therefore, the user can easily identify whether or not the inside of the container is in a low vacuum state by confirming this deformation.

Of course, when the vacuum state inside the container is released, the sucked low vacuum hemispherical part 36a-1 of the low vacuum degree display part 36a returns to the previous state with the original projection shape.
The high vacuum degree display part 36b has a columnar shape closed by its semispherical upper surface and has a hollow interior, and more preferably has a diameter smaller than the diameter of the low vacuum degree display part 36a. It has a column shape and protrudes.
When the high vacuum state is formed inside the airtight container, the state of the suctioned high-accuracy empty hemispherical portion 36b-1 is preserved.

Of course, when the vacuum state inside the container is released, the sucked high vacuum degree hemispherical part 36b-1 of the high vacuum degree display part 36b returns to the previous state with the original projection shape.
The high vacuum degree display part 36b having such a function includes a cylindrical side wall 36-2 formed with a large thickness and a certain degree of rigidity.
Therefore, the high vacuum degree display unit 36b can also be used as a handle used by the user to lift the check valve 30 so that the external air is forced to flow into the container.

On the other hand, in a container that requires a low vacuum and does not require a high vacuum state, the high vacuum degree indicator 36b can be used only as a handle by completely filling the inside.
A date indicator 38 indicating the storage date is formed on the body portion 32 of the check valve 30.
The date indicator 38 has a triangular shape and protrudes from the surface of the body part 32.
In addition, the date indicator 38 can be projected with an arrow shape or a dot shape, or can be displayed in that shape, so that the user can identify it.
Since the check valve 30 rotates around the connecting ridge 34, the date indicator 38 has a ring shape and is formed on the closing body 20 at the periphery of the check valve 30. Point out the corresponding date shown in 29.

In this manner, the user rotates the check valve 30 so that the date indicator 38 can point out the storage date indicated on the date display unit 29.
As a result, the user can easily identify the period during which the food is stored in the container 1.

  In addition, it is preferable that at least one side of the closing device includes a handle (not shown) in the container body 10 or a member, and the handle can be conveniently held by the user corresponding to both sides. .

[Embodiments of the Invention]
4 and 5 are diagrams illustrating the true operation of a closure device for such a vacuum vessel in an airtight state.
In particular, FIG. 4 is a cross-sectional view illustrating a state in which the vacuum container is closed by the closing device, and FIG. 5 is a vacuum airtight state by pressing the closing device in the state of FIG. It is sectional drawing which illustrates the state made into the state.

In a state in which the contents, for example, food (not shown) is contained in the main body 10, as shown in FIG. 4, the user closes the closing device on the inlet portion 12 of the container main body 10 and closes the closing body. When 20 is pushed downward, the contact portion 44 of the packing 40 comes into contact with the inlet portion 12 of the container body 10, and the outer end portion of the contact portion 44 is curved upward.
Accordingly, the closing device moves downward so that the air inside the container body 10 is discharged through the air hole 24.
At this point, while the air is exhausted through the air holes 24, a unique sound is generated as the air flows out.

When the user hears the sound, the user can identify whether or not a vacuum operation is being performed.
As described above, the air discharged through the air hole 24 flows out from the container 1 while lifting the check valve 30 in contact with the closing body 20.
When the pushing force of the user is removed, the closing device moved downward is lifted slightly by the elastic recovery force of the packing 40.
Therefore, the air inside can be expanded so as to form a vacuum state inside the container.
At this time, as shown in FIG. 5, the packing 40 has a shape corresponding to the inner surface of the inlet portion 12 of the container body 10, and the packing 40 is bent so that the inlet of the container body 10 is completely closed. Close contact with the inner surface.
The low vacuum hemispherical portion 36a-1 of the low vacuum degree display portion 36a of the check valve 30 is recessed inward so that the user can identify that the container 1 is in a low vacuum state.

FIG. 6 is a diagram illustrating the operation of the closing device for the vacuum vessel during opening.
With reference to this drawing, the opening operation | movement of the said closure apparatus of the said vacuum vessel is demonstrated in detail.

As shown in FIG. 5, in order to open the vacuum container in which food is vacuum packed and the food is cooked, as shown in FIG. When grasped and lifted, a gap is formed between the side surface of the check valve 30 and the surface of the closing body 20, and external air flows into the inside through the gap.
As a result, external air flows into the container body 10 through the air holes 24 of the closing body 20 so as to release the vacuum state of the container 1.
Therefore, as the closure device moves upward from the container body 10, the packing 40 mounted on the rim 28 of the closure body 20 separates from the inlet portion 12 of the container body 10.
At the same time, the low vacuum degree display portion 36a of the low vacuum hemispherical portion 36a-1 of the check valve 30 protrudes so as to return from the concave shape to the original protruding shape.
In this state, when the user lifts the closure device, the closure device is easily separated from the container body 10.

FIG. 7 and FIG. 8 are diagrams illustrating a method of mounting a packing on such a vacuum container closing device.
FIG. 7 is a diagram illustrating a state before the packing is mounted in the packing mounting groove, and FIG. 8 is a diagram illustrating a state in which the packing is mounted in the packing mounting groove.

As shown in FIG. 7, when the mounting portion 42 of the packing 40 is positioned toward the packing mounting groove 28-1 formed in the rim 28 of the closing body 20 and pushed in the X direction, the packing mounting groove Air in 28-1 is discharged, and the packing 40 made of silicon material is completely inserted into the packing mounting groove 28-1 by elastic force while closely contacting the packing mounting groove 28-1.
At this time, the hook-shaped pressing protrusion 42-1 is inserted into the packing mounting groove 28-1 while being elastically deformed, whereby the pressing protrusion 42-1 and the packing mounting groove 28-1 are inserted. To increase the contact between the inner wall of the closure 20 to form.
Accordingly, the vacuum mounting force increases.
As a result, as shown in FIG. 8, the mounting portion 42 of the packing 40 is in close contact with the inner wall of the closing body 20 forming the packing mounting groove 28-1, so that it is integrated with the inner wall in a vacuum. Even when the latching claw is not provided in the separating direction by contacting the mounting portion 42, the mounting portion 42 ensures a strong coupling force that is not easily separated from the inner wall.
Since this is also the same as the principle of the suction cup, a great amount of pressure can be easily applied to the entire area of the packing 40 having a rectangular belt shape so that the packing 40 is not separated.
As the user cleans it, the user separates a portion of the packing 40 from the closure 20 to allow air to enter, and then gradually separates the remaining portion of the packing 40 from that portion.
As a result, the packing 40 is easily separated.

The contact bump 28-3 is formed inside the elastic bump 44-1 along the inner end of the contact surface 28-2 so as to be in close contact with the contact portion 44 while performing vacuum mounting. External air cannot flow into the hollow space between the packing 40 and the closing body 20.
Therefore, when a high vacuum state is formed inside the container body 10, the hollow space and the inside of the container body 10 are prevented so that the packing 40 is prevented from being disassembled from the packing mounting groove 28-1. It is preferable to reduce the differential pressure between them.

When external air flows into the hollow space between the packing 40 and the closing body 20, the atmosphere enters the hollow space.
Therefore, since the difference between the pressure in the hollow space and the negative pressure inside the container increases, a large force in the lower direction is applied to the packing 40.
In this case, if the packing 40 is not securely mounted in the packing mounting groove 28-1, the packing 40 can be released from the packing mounting groove 28-1.

  FIG. 9 is a perspective view of the date indicator of the vacuum container closing device in use in which the corresponding part of the date indicator is selected, and FIG. 10 is a top view of the date indicator shown in FIG.

As shown, the check valve 30 is disposed in the valve mounting recess 22 formed on the closure 20 so that the check valve 30 can rotate about the connecting ridge 34 (not shown). Is done.
The date display unit 29 is formed on the surface of the closing body 20 adjacent to the check valve 30 while surrounding the check valve 30.
Therefore, the user rotates the check valve 30 so that the date indicator 38 can point out the corresponding date of the date display unit 29 formed on the closing body 20, thereby specifying the storage date.

For example, when two days have passed since the food began to be stored in the vacuum container, the date indicator 38 can indicate the number “2” of the date display unit 29 displayed on the closure 20. The user turns the check valve 30 so that the day is the second day.
On the next day, the date indicator 38 of the check valve 30 is rotated to indicate the number “3”, so that the user can identify that three days have passed since the food began to be stored.

  FIG. 11 is a cross-sectional view illustrating another embodiment of the check valve in the closing device for a vacuum vessel according to the present invention.

The check valve 30 'when the low vacuum is sufficient for the vacuum vessel and the high vacuum state is unnecessary so that the high vacuum degree display unit is used only as the handle 36b', The inside of the cylindrical part is configured to be completely formed of silicon resin.
At that time, the handle 36b 'is strengthened and can be used effectively.
In this case, it is sufficient to form the low vacuum degree display portion 36a ′.
Of course, the remaining structure of the check valve 30 'is equal to the above embodiment.

FIG. 12 is a cross-sectional view of a vacuum vessel in which a closing device according to the present invention is used and mounted, in which a high vacuum state is formed in the vacuum vessel by a vacuuming device.
A method for forming a high vacuum state in the container 1 according to the present invention by the vacuum apparatus 200 will be described below.

An extended ridge 213 a extending toward the lower portion of the first container body 210 of the vacuum device 200 is inserted into the valve mounting recess 22 of the closing body 20 so as to surround the check valve 30.
In a state where the extended ridge 213a is in close contact with the closing device, the pressing body 240 is pressed so as to move the second container 230 downward.
At that time, negative pressure is applied to the second chamber 231.
Therefore, negative pressure is also applied to the periphery of the check valve 30 so as to lift the check valve 30 upward.
As a result, the air inside the container 1 is discharged, thereby increasing the degree of vacuum inside the container 1.
By repeating this operation, the air inside the container 1 is discharged so as to form a high vacuum state inside the container 1.
At that time, the high vacuum degree hemispherical part 36b-1 of the high vacuum degree display part 36b of the check valve 30 is recessed so that the user can recognize the vacuum state in the container interior 1.

  FIG. 13 is a perspective view illustrating another embodiment of a closure device for a vacuum vessel according to the present invention, and FIG. 14 is a cross-sectional view taken along the line BB of FIG.

In the present embodiment, a vacuum container closure device having a circular plate shape changed from the rectangular shape of the vacuum container closure device described above will be described.
In the present specification, the configuration and connection structure of the check valve 30 ″ and the packing 40 ″ are the same as those in the above embodiment.
Therefore, detailed description thereof is omitted.
In the present embodiment, simply because the outer shape of the vacuum vessel 1 '' has a cylindrical shape, the packing 40 '' has a ring shape.

Further, the circular closure device for such a vacuum vessel does not have an airfoil at its rim 28 '' that is equivalent to the embodiment described above.
Thus, the closure device does not cover the side of the inlet portion 12 '' of the container body 10 '' because the rim 28 '' of the closure body 20 '' covers the inlet portion of the container body 10 ''. Designed to be correctly assembled to 12 ″.
Naturally, such a closure device for a vacuum vessel includes a wing-like portion curved downward at the rim 28 '' so as to cover a predetermined portion of the side surface of the inlet portion 12 '' of the vessel body 10 ''. Also good.

  The above-described closure device for a vacuum container according to the present invention can be mounted on a commonly used container body having various sizes and shapes so as to evacuate the inside thereof.

FIG. 15 is a diagram illustrating another embodiment of a versatile closure device for a vacuum vessel.
As shown in the figure, in the closing device manufactured in a small size, the packing 40 ′ ″ of the closing body 20 ′ ″ is mounted on the glass 7 (or mirror, tile, etc.) and vacuum-mounted according to the above principle. Therefore, it can be used as a suction cup.
In this way, the closing device is attached to the glass 7 so that it can be used for suspension of articles and glass attachment.

  16 is a cross-sectional view illustrating another embodiment of the present invention, and FIG. 17 is a cross-sectional view of the closing device for a vacuum vessel shown in FIG. 16 in a state where the closing device is pressed.

  In some cases, a central ridge 22-3 is formed on the closing body 20 as a valve connecting portion, and a central hole 34-2 is connected on the check valve 30 as a connecting portion so that the check valve 30 is installed. You may form.

Also, as shown in FIG. 17, a contact ridge 28-3 is formed on the contact surface 28-2 so as to be in close contact with the contact portion 44 of the packing 40 when pressure is applied, thereby the packing of external air. Inflow into the hollow space between 40 and the closing body 20 is prevented.
Therefore, when a high vacuum state is formed in the container body 10, the difference between the hollow space and the container body 10 so as to prevent the packing 40 from being released from the packing mounting groove 28-1. The pressure decreases.
1-3, the remaining structure of the closure device is the same as described above.

  Although the present invention has been described with reference to the most practical and exemplary embodiments at the present time, it should be understood that the invention is not limited to the disclosed embodiments and drawings, but rather Such modifications and variations are intended to be included within the spirit and scope of the appended claims.

  As is apparent from the foregoing, the plurality of closure devices for a vacuum vessel according to the present invention are easily assembled, thereby improving their assembly and productivity.

Furthermore, the closure device for a vacuum vessel according to the present invention has an advantage that it can be easily assembled and disassembled without causing any trouble or damage during use, thereby improving assemblability.
Further, the closing device can be easily cleaned, and inflow and exhaust of air can be confirmed by a simpler method.

  In addition, the closure device for a vacuum container according to the present invention allows the user to keep the contents in a vacuum state and to easily take out the contents, thereby enhancing the convenience. Yes.

  Furthermore, since the low vacuum level and the high vacuum level can be displayed on the closing device for a vacuum container according to the present invention according to the vacuum state inside the container, the closing device can display the kind of contents in the container. Accordingly, the contents can be kept in an appropriate vacuum state, and used for the user to easily confirm the state of the contents.

  In addition, the present invention is used to display the storage date so that the user can easily identify the storage date.

  The present invention can also be used to store foods that require a specific high vacuum level by simply creating a high vacuum inside the container.

Claims (11)

In a multipurpose closing device for a vacuum vessel that opens and closes an inlet of the vacuum vessel main body having a space for containing contents,
A closing body for opening and closing the inlet of the vacuum vessel body, the closing body having a valve mounting portion, an air hole, and a packing mounting groove formed inside the rim of the closing body;
Surrounds the air hole so as to discharge air inside the vacuum container body through the air hole during vacuum operation, prevents inflow of external air into the vacuum container, and is connected to the valve mounting part A check valve including a connecting part formed in the body part surrounding the air hole,
A packing including a mounting portion inserted and mounted in the packing mounting groove and a contact portion extending from a lower portion of the mounting portion toward an inlet portion of the vacuum vessel body, wherein the contact portion is the closure A multipurpose closure device for a vacuum vessel, comprising: a packing closely contacting an inlet portion of the vacuum vessel main body so as to form a vacuum inside the vacuum vessel according to a downward movement of a body. The check valve may further include a vacuum degree display part that protrudes and is recessed from the body part so as to display a vacuum state when a vacuum operation is performed inside the vacuum vessel. The multipurpose closing device for a vacuum vessel according to claim 1. A date display portion that is marked as a numerical code on the closure body while surrounding the periphery of the check valve;
Characterized by comprising a date indicator that protrudes from the body of the check valve or is marked on its surface to point out the corresponding storage date of the contents on the date display,
The multipurpose closing device for a vacuum vessel according to claim 2, wherein the check valve rotates around the connecting portion so that a date indicator can indicate the storage date. An elastic ridge is formed upwards close to the end of the contact portion of the packing,
A contact surface is formed on the inside of the closure corresponding to the elastic ridge,
And the elastic ridge can be in close contact with the contact surface,
Further, when the closing device is in an airtight state, the elastic ridge can lift the closing body while returning to the previous state after being in close contact with the contact surface so as to compress the contact surface. The multipurpose closing device for a vacuum vessel according to 1. The contact surface has a contact ridge that comes into contact with a contact portion of the packing when the closing body moves downward so as to prevent inflow of external air into the hollow space between the packing and the closing body. The multipurpose closing device for a vacuum vessel according to claim 4. The vacuum degree display part includes one or both of a low vacuum degree display part that displays a low vacuum state inside the container and a high vacuum degree display part that displays a high vacuum state inside the container. The multipurpose closing device for a vacuum vessel according to claim 2, wherein: The multipurpose closure device for a vacuum vessel according to claim 1, further comprising a handle having a cylindrical shape and protruding from a body portion of the check valve. The closing body may have a valve mounting recess formed in the center of the closing body so that the check valve can be safely seated and mounted, and the check valve is slightly spaced from the bottom of the valve mounting recess. As well as
The check valve comprises a central protrusion that protrudes from the bottom of the valve mounting recess so that the check valve can rotate smoothly and move in the vertical direction,
Furthermore, the valve mounting portion is formed at the center of the central protrusion,
The multipurpose closing device for a vacuum vessel according to claim 1, wherein the air hole is formed along a side surface of the central protrusion portion in a straight line shape. The check valve is formed as a single component so that the body part, the connection part, the low vacuum degree display part, and the high vacuum degree display part are integrally formed. Item 7. A multipurpose closure device for a vacuum vessel according to Item 6. The multipurpose closing device for a vacuum vessel according to claim 9, wherein silicon is used as a material of the check valve and the packing. The multipurpose closing device for a vacuum vessel according to claim 10, wherein a hook-shaped pressurizing protrusion is formed at an end of the mounting portion of the packing.

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