KR20160058479A - Airtight container - Google Patents

Abstract

A vacuum sealed container is disclosed. A vacuum hermetic container of the present invention comprises: a container having an opening; A lid coupled to the opening of the container and defining a receiving space with the container; And a vacuum unit installed in the lid for forcibly discharging the gas in the accommodation space. According to the present invention, it is possible to provide a vacuum hermetically sealed container which can quickly increase the degree of internal vacuum, automatically prevent excessive formation of a vacuum in the interior, and improve the sealability between the lid and the container.

Description

{AIRTIGHT CONTAINER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum hermetic container, and more particularly, to a vacuum hermetic container provided with a vacuum hermetic container.

Putrefaction is a state in which food is altered and becomes inedible, and there are physicochemical and biological changes in alteration, often indicating the latter.

Foods containing protein as a main component (eggs, meat, fish and shellfish, etc.) are decomposed into amines and ammonia by the action of microorganisms, and odors are produced. Preservation methods to prevent corruption include refrigeration, refrigeration, drying, irritation, addition of chemicals and vacuum storage.

Regarding the vacuum storage, Korean Patent Registration No. 720765 discloses a vacuum container for food storage, and Korean Patent No. 720765 discloses a vacuum container for storing food. In the vacuum container, , A casing integrally provided with an engaging flange continuously projecting along an upper portion of the food holding portion, a food detachably assembled to be stored inside the food holding portion and seated on the upper surface, And a cover for sealing the food storage portion opened by engaging with the engagement flange of the casing. The both sides of the cover are engaged with the casing to seal or open the inside of the cover, A locker which is rotatably operated by a hinge is mounted, and on the upper surface of the cover, High, and the check valve is maintained in a vacuum state is provided, it is characterized in that a cyclic period of chekeugi surrounding the check valve is fixed is inserted into the upper surface of the cover.

Patent Document 720765 discloses a cover having a casing, a seating table, and a locker, which can be easily assembled and coupled, and can be easily used for domestic use. Especially, a simple structure is employed. However, There is an advantage in that the vacuum operation can be performed easily by the check valve which can be opened and closed.

However, the conventional vacuum container including the No. 720765 has a disadvantage in that the container and the vacuum device are separated from each other, the vacuum device is connected each time the food is stored, and the vacuum device is separated after the vacuum is formed. Since the vacuum container is a product for retaining the freshness of the food for a long time by extracting the inside air, it is important to form a vacuum quickly, and even if a vacuum is formed in the vacuum container by the above-described process, The period of storage in the state is inevitably shortened.

In addition, the conventional vacuum container including the No. 720765 has a problem that the container is deformed or broken when an excessive degree of vacuum is formed due to inactivity of the user in the space inside the container. Even if deformation occurs locally in the container or the lid, the vacuum container may have a very low sealing performance when a minute gap is formed between the inside and the outside of the container, which means that the life of the vacuum container is over.

In addition, in the conventional vacuum container including the No. 720765, the shape of the rubber seal between the lid and the container is deformed after a lapse of a certain period of use, and external air permeates through the gap between the rubber seal and the container There was a problem.

(0001) Korean Patent Publication No. 720765 (Registered on May 15, 2007)

SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum hermetic container which is capable of rapidly increasing an internal vacuum degree, automatically preventing an excessive degree of vacuum from being formed therein, and improving the sealability between the lid and the container.

According to the present invention, said object is achieved by a container comprising a container having an opening formed therein; A lid coupled to an opening of the container and defining a containment space with the container; And a vacuum unit installed on the lid for forcibly discharging the gas in the accommodation space.

Wherein the lid is formed with a hole communicating with the accommodation space, the vacuum unit comprising: a passage member having an inlet communicating with the hole and forming a passage between the inlet and the outlet; A reciprocating member movably formed along the passage between the inlet and the outlet; An opening / closing member that opens or closes the hole by a pressure difference between the accommodation space and the passage; And opening and closing means for opening or closing the space between the reciprocating member and the passage member in accordance with the moving direction of the reciprocating member.

The opening and closing means includes a sealing member interposed between the reciprocating member and the passage member and closely contacting the inner circumferential surface of the passage member; And a stopper formed on the reciprocating member and formed on the inlet side of the sealing member and a stopper formed on the outlet side of the stopper, the stopper being formed to communicate with the inlet side and the outlet side, The sealing member may be in close contact with the finishing portion or the engaging portion when the reciprocating member reciprocates.

The opening and closing member may be elastically deformed so as to be spaced apart from or close to the hole by a pressure difference between the accommodation space and the passage.

The hole may be formed in two or more along the circumferential direction, and the opening and closing member may be formed so as to be in close contact with the lid and the inlet along the circumference, to have a hole at the center, and to have a groove in contact with the hole along the circumferential direction.

The lid or the container may be provided with a safety valve for automatically introducing outside air if a degree of vacuum of less than a predetermined level is formed in the accommodation space to prevent deformation of the lid or the container.

A communication hole is formed in the lid or the container, the safety valve includes: a moving member movably inserted into the communication hole; And an elastic means for pressing the moving member outwardly of the accommodating space, wherein when the external force transmitted to the moving member is greater than the force due to the pressure of the accommodating space and the force of the elastic means, have.

The rim of the communication hole may be coupled with an elastic member that is elastically deformed to be compressed by the force of the elastic means and forms the close contact surface with the moving member.

The inner circumferential surface of the elastic member extends in the direction of the accommodation space, and the moving member includes an inclined portion which is in close contact with the inner circumferential surface of the elastic member when the communication hole is closed; And an extension portion extending from the inclined portion to the outside of the accommodation space and being pressed by the elastic means.

Wherein the lid is provided with an installation space therein and the passage member is provided inside the lid so that the outlet communicates with the installation space, and at the end of the reciprocating member, So that the handle portion is exposed to the outside.

The lid may be provided with a vent hole for communicating the installation space with the outside, and a filter for filtering the gas may be formed in the vent hole.

The lid may be formed with an engagement groove through which sealing means is inserted and coupled, and the sealing means may be formed with an insertion groove into which the opening rim of the container is inserted.

A stepped portion may be formed along the outer side of the coupling groove, and the sealing means may be formed to be spaced apart from the stepped portion.

According to the present invention, since the vacuum unit is installed on the lid, it is possible to provide a vacuum hermetic container which can rapidly increase the degree of internal vacuum.

Further, since a safety valve for automatically introducing outside air is provided when a vacuum level of a certain level or less is formed in the accommodation space, it is possible to provide a vacuum sealed container in which excessive formation of vacuum is automatically prevented.

In addition, it is possible to provide a vacuum hermetically sealed container in which sealing property between the lid and the container is improved by forming the insertion groove into which the opening of the container is inserted into the sealing means.

1 is a perspective view of a vacuum sealed container according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the vacuum hermetic container of FIG. 1. FIG.
3 is a sectional view showing an operating state of a vacuum unit of the vacuum sealed container of FIG.
Fig. 4 is a sectional view showing an operation state of the safety valve of the vacuum hermetic container of Fig. 1; Fig.
Fig. 5 is a sectional view showing a sealing means of the vacuum hermetic container of Fig. 1; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The vacuum sealed container of the present invention can quickly increase the degree of internal vacuum, automatically prevent the formation of excessive vacuum in the inside, and improve the sealability between the lid and the container.

FIG. 1 is a perspective view of a vacuum hermetic container according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the vacuum hermetic container of FIG. 1, FIG. 3 is a sectional view showing an operation state of a vacuum unit of the vacuum hermetic container of FIG. Fig. 4 is a cross-sectional view showing an operating state of the safety valve of the vacuum hermetically sealed container of Fig. 1, and Fig. 5 is a sectional view showing the sealing means of the vacuum hermetically sealed container of Fig.

1 and 2, a vacuum sealed container 1 according to an embodiment of the present invention forms a vacuum in a state in which food is stored in the container 10, (20), a vacuum unit (30), and a safety valve (40). In order to facilitate understanding, the upper and lower portions will be described below in the state shown in the drawings.

As shown in Fig. 2, the container 10 forms a space for accommodating food therein, and an opening portion through which food is drawn in or drawn out is formed on the upper side. The container 10 is made of transparent or opaque glass, ceramics, or synthetic resin. The lid 20 is coupled to the edge of the opening.

As shown in Figs. 1 to 3, the lid 20 is configured to be coupled to the opening of the container 10, and forms a receiving space 10a having a constant volume together with the container 10 at the time of engagement. The food contained in the accommodating space 10a is prevented from leaking upward by the lid 20 while being accommodated in the container 10. [

As shown in FIG. 5, at the edge of the lid 20, an engaging groove 21c is formed in which a sealing means S is inserted and engaged. The sealing means S is made of elastically deformable material such as rubber or silicone to prevent the gap between the lid 20 and the opening of the container 10 and is coupled along the edge of the lid 20 .

The sealing means S is formed with an insertion groove H into which the rim of the opening of the container 10 is inserted. When the lid 20 is coupled to the opening of the container 10, the three sides of the container 10, that is, the inner side surface, the outer side surface and the upper side surface of the container 10, By being in close contact with the means S, the receiving space 10a is effectively sealed.

A vacuum sealed container has a repetitive degree of vacuum formed therein, and a large pressure is formed in the sealing means during the formation of a vacuum, compared with a general closed container in which no vacuum is formed in the receiving space. Conventionally, There is a problem that the sealing property of the accommodation space is reduced while the elasticity of the means is reduced.

5, the vacuum sealed container 1 of the present invention has the step 21d formed along the outer side in the coupling groove 21c and the sealing means S is separated from the step 21d So that the sealing property of the accommodation space 10a is improved. That is, even if the self-elasticity of the sealing means S decreases after the lapse of a certain period of use 10, the sealing means S on the stepped portion 21d side during the vacuum formation of the accommodation space 10a is separated from the stepped portion 21d And is brought into close contact with the outer surface of the container 10, thereby improving the sealing performance of the accommodation space 10a.

2 and 3, the lid 20 comprises an upper lid 22 and a lower lid 21. As shown in Fig. Between the upper lid 22 and the lower lid 21, an installation space 20a is formed in which a vacuum unit 30 is installed. The vacuum unit (30) is fixed by the upper lid (22) and the lower lid (21).

The lower lid 21 closes the opening of the container 10 and the upper lid 22 is coupled to the opposite side of the accommodation space 10a with respect to the lower lid 21 so as to form an installation space 20a therebetween do. The upper lid (22) and the lower lid (21) are engaged with each other at the edge portions. The lower lid 21 is formed with a hole 21a communicating with the accommodation space 10a.

2 and 3, the upper lid 22 and the lower lid 21 are provided with a holding force 20a in the installation space 20a so that relative movement of the upper lid 22 and the lower lid 21 is prevented, The protrusions P2 are formed. When the upper lid 22 and the lower lid 21 are engaged with each other, the projecting portion P2 is inserted into the other end of the protruding portion P2, so that even when an external force is applied to the upper lid 22 in the horizontal direction, The relative movement of the upper lid 22 and the lower lid 21 is prevented. The not-shown code C means a cap which covers the projecting portion P2 of the upper lid 22 from the outside.

Although not shown, the coupling force between the edge portions of the upper lid 22 and the lower lid 21 may be formed by bolt coupling or by insertion of protrusions, holes or grooves, and various known coupling methods may be used .

2 and 3, the vacuum unit 30 includes a passage member 31, a reciprocating member 32, an opening / closing member 33, And an opening / closing means (34).

The passage member 31 is formed in the shape of a hollow tube having an inlet 31a and an outlet 31b to form a passage 31c through which the reciprocating member 32 reciprocates, 34 form a passage 31c through which the gas in the accommodation space 10a is forcibly discharged to the outside. The inlet 31a of the passage member 31 communicates with the hole 21a of the lower lid 21 and the outlet 31b communicates with the installation space 20a inside the lid 20. [

2 and 3, the passage member 31 is bent in the direction of about 90 degrees toward the longitudinal direction of the installation space 20a from above the inlet 31a so that the area of the installation space 20a is minimized , The outer surface of the passage member 31 is supported by the lower lid 21 and the upper lid 22 along the longitudinal direction. The lower lid 21 and the upper lid 22 are formed at positions corresponding to each other with a support portion P1 for supporting the passage member 31. [

The opening and closing member 33 is formed between the inlet 31a of the passage member 31 and the hole 21a of the lower lid 21 as shown in Figs. The opening and closing member 33 is configured to open or close the hole 21a and is made of a material such as rubber that is elastically deformable so as to be separated from the hole 21a by a pressure difference between the accommodation space 10a and the passage 31c, So as to be elastically deformed.

An edge of the opening and closing member 33 is bent downward and an annular groove 21h into which the edge of the opening and closing member 33 is inserted is formed on the upper surface of the lower lid 21 outside the hole 21a.

The side of the inlet 31a of the passage member 31 is bolted to the lower lid 21. The edge of the opening and closing member 33 is compressed by the passage member 31 and the lower lid 21 in the course of the bolt connection and is brought into close contact with the edge of the opening and closing member 33, The lid 21 is sealed.

The opening and closing member 33 is formed with a hole 33a at the center and two or more holes 21a are formed along the circumferential direction. The opening and closing member 33 is in close contact with the upper surface of the lower lid 21 due to its own elasticity and the hole 33a of the opening and closing member 33 and the lower lid 21 do not communicate with each other by the close contact surfaces of the opening and closing member 33 and the lower lid 21. [

As shown in Fig. 3, the reciprocating member 32 is formed to be movable along the passage 31c between the inlet 31a and the outlet 31b. The reciprocating member 32 is configured to include a handle portion 32A and a moving portion 32B.

3, the handle portion 32A is exposed to the outside of the lid 20 so as to be operated by the user as a structure for moving the moving portion 32B, and the moving portion 32B is held by the handle portion 32A And is reciprocally moved in the passage 31c inside the passage member 31 together with the handle 32A.

The upper lid 22 is formed with a seat portion B on which the handle portion 32A is seated. It is preferable that the outline lines of the handle portion 32A and the upper lid 22 are formed to be in mutual alignment with each other in a state where the handle portion 32A is placed on the seat portion B. [

As shown in FIG. 2, the upper lid 22 is formed with an insertion hole 22b into which the moving part 32B is inserted into the installation space 20a. The insertion hole 22b is formed at a position corresponding to the outlet 31b of the passage member 31. [

2 and 3, the upper lid 22 is coupled with a rail member R for restricting the moving direction of the moving part 32B. The rail member R is composed of an upper rail member R and a lower rail member R and is coupled to the upper and lower portions with respect to the insertion hole 22b.

The upper rail member R and the lower rail member R are coupled to the upper lid 22 as shown in Figures 2 and 3, A space corresponding to the end surface of the moving part 32B is formed therebetween.

The upper rail member R and the lower rail member R form a constant contact surface with the upper and lower portions of the moving portion 32B when the moving portion 32B reciprocates, Is prevented from being moved and rotated.

2 and 3, the opening and closing means 34 is configured to open or close the end portion of the moving portion 32B and the passage member 31 in accordance with the moving direction of the reciprocating member 32, Is formed at the end of the portion 32B on the side of the inlet 31a. The opening and closing means 34 is composed of a sealing member SE, a finishing portion 34A and an engaging portion 34B.

3, the sealing member SE is interposed between the end of the moving part 32B on the side of the inlet 31a and the passage member 31, and is brought into close contact with the inner peripheral surface of the passage member 31. As shown in Fig. Preferably, the sealing member SE is provided with an O-ring.

As shown in Figs. 2 and 3, the finishing portion 34A and the engaging portion 34B are formed at the end of the moving portion 32B.

The finishing portion 34A is formed on the inlet 31a side with respect to the sealing member SE and the engaging portion 34B is formed on the outlet 31b side with respect to the sealing member SE. The sealing member SE moves together with the sealing member SE in close contact with the closing portion 34A or the engaging portion 34B in accordance with the moving direction of the reciprocating member 32. [

3 (b), when the reciprocating member 32 moves toward the outlet 31b, the sealing member SE is brought into close contact with the closing portion 34A in a state of being in close contact with the inner circumferential surface of the passage member 31 The sealing member SE and the closing portion 34A form an isolated space from the inlet 31a side and the outlet 31b side of the passage member 31. [

More specifically, the finishing portion 34A is formed in the shape of a circular plate extending in the radial direction at the end of the moving portion 32B.

The spaces on the side of the inlet 31a and the side of the outlet 31b of the passage 31c communicate with each other only through the annular gap between the closing portion 34A and the inner peripheral surface of the passage member 31, The annular gap between the finishing portion 34A and the inner peripheral surface of the passage member 31 when the member 32 is moved toward the outlet 31b is closed by the sealing member SE.

3 (a), when the reciprocating member 32 moves toward the inlet 31a, the sealing member SE is brought into close contact with the engaging portion 34B in a state of being in tight contact with the inner peripheral surface of the passage member 31 The engaging portion 34B is formed to communicate the space on the side of the inlet 31a and the space on the side of the outlet 31b so that the inlet 31a side and the outlet 31b side of the passage member 31 communicate with each other.

More specifically, the engaging portion 34B is formed to extend in the radial direction at the end portion of the moving portion 32B, but the inlet 31a side of the passage 31c and the outlet 31b Side space communicates with each other through the annular gap between the engaging portion 34B and the inner circumferential surface of the passage member 31 and the communication hole 34Ba formed in the engaging portion 34B so that the reciprocating member 32 is in communication with the inlet The space on the side of the inlet 31a of the passage 31c and the space on the side of the outlet 31b communicate with each other through the communication hole 34Ba with reference to the engaging portion 34B.

The degree of vacuum is increased by the reciprocating movement of the reciprocating member 32 described above in the accommodation space 10a formed by the coupling of the container 10 and the lid 20. [

3, the opening and closing member 33 is formed with a groove 33b in contact with the hole 21a of the lower lid 21 along the circumferential direction. The opening and closing member 33 is elastically deformed more easily in the groove 33b region when the groove 33b in contact with the hole 21a is formed along the circumferential direction in the opening and closing member 33, The gas in the accommodation space 10a is smoothly discharged to the passage 31c of the passage member 31 when the reciprocating member 32 is moved toward the outlet 31b and as shown in Figure 3 (a) , The opening and closing member 33 is quickly resiliently restored and the hole 21a is closed when the reciprocating member 32 is moved to the inlet 31a side.

3 (a), as the opening / closing member 33 is more easily elastically deformed at the portion where the groove 33b is formed after the vacuum formation of the accommodation space 10a is completed, the opening / closing member 33 Is brought into close contact with the hole 21a, so that gas movement between the accommodation space 10a and the passage 31c is reliably prevented.

3, when the reciprocating member 32 reciprocates, the gas in the passage 31c moves toward the inlet 31a of the reciprocating member 32 through the outlet 31b to the installation space 20a, The gas which has moved into the installation space 20a through the passage 31c in the accommodation space 10a passes through the insertion hole 22b and the insertion hole 22b, The movable member 41, and the like. Of course, the upper lid 22 may be provided with a separate vent hole (not shown) through which the gas is discharged.

In the conventional vacuum sealed container, when the vacuum is formed, the smell of the food stored in the receiving space is directly discharged, and when the vacuum is formed by storing the food having strong smell, the smell spreads.

Although not shown, a separate vent hole (not shown) for communicating the installation space 20a with the outside is formed in the upper lid 22, and a filter (not shown) for filtering the gas may be formed in the vent hole .

The gas introduced into the installation space 20a through the outlet 31b of the passage member 31 at the time of vacuum formation by the vacuum unit 30 is discharged to the outside after passing through the filter, Storage of the food with strong odor and vacuum formation can be done without discomfort.

2 and 4, the lid 20 or the container 10 is provided with a safety valve 40 for automatically introducing outside air when a degree of vacuum of a certain level or less is formed in the accommodation space 10a .

Although the safety valve 40 is illustrated as being installed in the lid 20 in one embodiment of the present invention, the safety valve 40 may be formed in the container 10 as described above. The following description will be made based on the state shown in the drawing.

As shown in Figs. 2 and 4, the safety valve 40 comprises a shifting member 41 and an elastic means E2. A communication hole 21b is formed in the lower lid 21 and a through hole 22a corresponding to the communication hole 21b is formed in the upper lid 22.

The shifting member 41 is configured to be movably inserted into the communication hole 21b and includes a tight fitting portion 41A, an inclined portion 41B, an extending portion 41C, and a button portion.

As shown in Fig. 4, an elastic member E1 forming a contact surface with the moving member 41 is coupled to the rim of the communication hole 21b. The inner circumferential surface of the elastic member El expands in the direction of the accommodation space 10a.

The close contact portion 41A is formed in a disc shape so that its upper face is brought into close contact with the bottom face of the elastic member E1 when the communication hole 21b is closed.

The inclined portion 41B is formed on the upper portion of the tight fitting portion 41A and is formed to extend downward so as to be in close contact with the inner circumferential surface of the elastic member E1 when the communication hole 21b is closed.

The extended portion 41C is formed to extend upward from the inclined portion 41B. The upper end of the inner circumferential surface of the elastic member E1 is spaced apart from the outer circumferential surface of the extending portion 41C by a predetermined distance so that the gas passes through.

As shown in Fig. 4, a finishing button 41D is coupled to the upper end of the extending portion 41C. The closing button 41D is configured to be pressed by the user when releasing the vacuum of the vacuum sealed container 1, and is exposed to the outside through the through hole 22a. On the lower side of the through hole 22a, there is formed a groove portion 22A in which the closing button 41D moves in the vertical direction.

As shown in Fig. 4, the elastic means E2 presses the moving member 41 outwardly of the receiving space 10a, and is preferably provided with a compression spring. The elastic means E2 is in close contact with the groove 22A while the lower end of the elastic means E2 is inserted into the groove 22A and the upper end of the elastic means E2 supports the closing button 41D.

As shown in Fig. 4 (a), the elastic means E2 is somewhat compressed in a state in which the closing button 41D is coupled to the upper end of the extended portion 41C. The adhered portion 41A and the inclined portion 41B are brought into close contact with the bottom surface and the inner circumferential surface of the elastic member E1 by the residual stress of the elastic means E2 and the movement of the gas through the communication hole 21b is prevented.

4 (b), the user presses the closing button 41D when the vacuum-formed container 10 is opened to introduce the atmospheric pressure gas into the accommodation space 10a, and then opens the container 10 .

The conventional vacuum container has a problem that the container is deformed or broken when an excessive degree of vacuum is formed due to inactivity of the user in the space inside the container.

The vacuum sealed container 1 of the present invention has a vacuum degree higher than a certain level in the accommodating space 10a so that the atmospheric pressure transmitted from the outside to the moving member 41 is lower than the vacuum pressure of the accommodating space 10a and the vacuum pressure of the elastic means E2 The moving member 41 is moved downward and the communication hole 21b is opened so that the gas in the installation space 20a is communicated with the accommodating space 21b through the communication hole 21b as shown in Figure 4 (b) (10a).

Since the safety valve 40 is installed in the lid 20 or the container 10, the vacuum sealed container 1 according to the present invention can prevent deformation and breakage of the container 10 even if an excessive degree of vacuum is formed due to inactivity of the user. There is an advantage to be avoided.

According to the present invention, since the vacuum unit 30 is installed in the lid 20, it is possible to provide a vacuum sealed container 1 that can quickly increase the degree of internal vacuum.

In addition, since the safety valve 40 for automatically introducing outside air is provided in the accommodation space 10a when a degree of vacuum of less than a predetermined level is formed, the vacuum sealed container 1, in which excessive vacuum formation is automatically prevented, . ≪ / RTI >

A vacuum hermetically sealed container (1) is provided in which sealing between the lid (20) and the container (10) is improved by forming an insertion groove (H) for inserting a rim of the opening of the container ). ≪ / RTI >

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

1: vacuum sealed container 10: container
20: lid 30: vacuum unit
40: safety valve 10a: accommodation space
20a: installation space 31: passage member
P1: Support 31a: Entrance
P2: protrusion 31b: outlet
S: sealing means 31c: passage
H: insertion groove 32: reciprocating member
21: Lower lid 32A: Handle portion
21a: hole 32B: moving part
21b: communication hole 33: opening / closing member
E1: elastic member 33a: hole
21c: engaging groove 33b: groove
21d: stepped portion 34: opening / closing means
22: upper lid SE: sealing member
B: seat part 34A:
22a: through hole 34B:
22A: groove portion 34Ba: communication hole
22b: insertion hole
R: Rail member
R1: upper rail member
R2: Lower rail member
41: moving member
41A:
41B:
41C: extension part
41D: Finish button
E2: Elastic means

Claims (13)

A container having an opening formed therein;
A lid coupled to an opening of the container and defining a containment space with the container; And
And a vacuum unit installed on the lid for forcibly discharging the gas in the accommodation space. The method according to claim 1,
A hole communicating with the accommodation space is formed in the lid,
The vacuum unit includes:
A passage member communicating an inlet with the hole and forming a passage between the inlet and the outlet;
A reciprocating member movably formed along the passage between the inlet and the outlet;
An opening / closing member that opens or closes the hole by a pressure difference between the accommodation space and the passage; And
And opening / closing means for opening / closing the space between the reciprocating member and the passage member in accordance with the moving direction of the reciprocating member. 3. The method of claim 2,
The opening /
A sealing member interposed between the reciprocating member and the passage member, the sealing member being in close contact with the inner circumferential surface of the passage member; And
And a stopper formed on the reciprocating member and formed on the inlet side with respect to the sealing member and a stopper formed on the outlet side,
Wherein the engaging portion is formed so that the inlet side and the outlet side communicate with each other,
Wherein the sealing member is in close contact with the finishing portion or the engaging portion when the reciprocating member reciprocates. 3. The method of claim 2,
Wherein the opening / closing member is resiliently deformed so as to be separated from or close to the hole by a pressure difference between the accommodation space and the passage. 5. The method of claim 4,
The holes are formed in two or more along the circumferential direction,
Wherein the opening and closing member is in close contact with the lid and the inlet along the circumference, has a hole formed at the center, and has a groove in contact with the hole along the circumferential direction. The method according to claim 1,
Wherein the lid or the container is provided with a safety valve for automatically introducing outside air if a vacuum degree of a predetermined level or less is formed in the accommodation space so as to prevent deformation of the lid or the container. The method according to claim 6,
A communicating hole is formed in the lid or the container,
The safety valve includes:
A moving member movably inserted into the communication hole; And
And elastic means for pressing said moving member outwardly of said containing space,
Wherein the communication hole is opened when the external force transmitted to the moving member is greater than the proof force due to the pressure of the accommodation space and the force of the elastic means. 8. The method of claim 7,
Wherein an elastic member that is elastically deformed to be compressed by the force of the elastic means and forms a close contact surface with the moving member is coupled to the rim of the communication hole. 9. The method of claim 8,
The inner circumferential surface of the elastic member expands toward the accommodation space direction,
The moving member includes:
An inclined portion in close contact with an inner circumferential surface of the elastic member when the communication hole is closed; And
And an extension portion extending from the inclined portion to the outside of the accommodation space and being pressed by the elastic means. The method according to claim 1,
The lid has an installation space formed therein,
Wherein the passage member is installed inside the lid, the outlet communicates with the installation space,
Wherein a handle portion is formed at an end of the reciprocating member so as to be exposed to the outside of the lid so as to manually move the reciprocating member. 11. The method of claim 10,
Wherein the lid has a vent hole communicating the installation space and the outside,
And a filter for filtering the gas is formed in the vent hole. The method according to claim 1,
A sealing groove is formed at an edge of the lid,
Wherein the sealing means is formed with an insertion groove into which an opening rim of the container is inserted. 13. The method of claim 12,
A stepped portion is formed along the outer side of the engaging groove,
Wherein the sealing means is formed to be spaced apart from the stepped portion.

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