WO2012053734A1

WO2012053734A1 - Food container sealing cover having inner pressure releasing function

Info

Publication number: WO2012053734A1
Application number: PCT/KR2011/005761
Authority: WO
Inventors: 임상만
Original assignee: Im Sang Man
Priority date: 2010-10-20
Filing date: 2011-08-08
Publication date: 2012-04-26
Also published as: KR200452037Y1

Abstract

The present invention relates to a food container sealing cover having an inner pressure releasing function. An object of the present invention is to easily remove a cover even when the inner pressure of a container is lower than atmospheric pressure, by installing a valve device on the cover. Another object of the present invention is to automatically release high pressure within the container by installing the valve device on the cover. To this end, a valve device (300) of a sealing cover according to the present invention comprises an elevating guide part (310), an upper valve body (320), an O-ring (330), a lower valve body (340), and a poppet valve unit (400). The elevating guide part (310) includes a cylindrical wall and a plurality of exhaust recesses (311). The cylindrical wall is disposed in the central portion of a cover main body (31), and has upper and lower openings. The exhaust recesses (311) are in an inner wall of the elevating guide part (310), and vertically extend from the uppermost end of the inner wall of the elevating guide part (310) to the middle thereof. The upper valve body (320) includes an upper hollow shaft part (321) and a flange type handle part (322). The upper hollow shaft part (321) has a stepped bottom edge and a lower end that is vertically movable within the elevating guide part (310). The flange type handle part (322) is disposed on the upper portion of the upper hollow shaft part (321) exposed to the upper side of the cover main body (31), and has a valve hole (324) passing through the central portion thereof. The O-ring (330) is disposed at the stepped bottom edge of the upper valve body (320), and tightly contacts the inner wall of the elevating guide part (310). In addition, the O-ring (330) is positioned at the upper or middle portion of the inner wall of the elevating guide part (310) according to an upward or downward movement of the upper valve body (320), so as to selectively open or close the exhaust recesses (311). The lower valve body (340) includes a lower shaft part (341) and a stopper part (342). The lower shaft part (341) is disposed at the lower side of the cover main body (31), and is coupled to a bottom edge of the upper hollow shaft part (321) of the upper valve body (320) to vertically move together with the upper hollow shaft part (321). A certain gap is maintained between the lower shaft part (341) and the inner wall of the elevating guide part (310). The stopper part (342) has a flange shape at the lower end of the lower shaft part (341), so that the stopper part (342) can be caught by a lower surface of the cover main body (31). The poppet valve unit (400) is disposed within the valve hole (324) of the upper valve body (320) to open the valve hole (324) according to inner pressure of a food container (10).

Description

Sealing lid for food storage container with internal pressure release function

The present invention relates to an airtight lid for a food storage container, and more specifically, to a food container containing a food container, which can be tightly sealed, and releasing the internal pressure (vacuum pressure) when it is opened. It relates to a closed lid for a food storage container having a function.

In general, when the food is stored, its own smell and moisture is leaked out, and in order to prevent this, food is stored in a sealed container and stored in a refrigerator. Such a conventional hermetic storage container is provided with a container body with an open top, a lid for opening and closing the container body, and a locking knob for locking the lid to an opening of the container body. The container body is usually made of a square or circle, the storage space is formed therein. In addition, a locking protrusion is provided at an open end of the container body, and the locking protrusions are formed to protrude along the outer surface of the side wall of the container body. The lid is formed in a plate shape so as to cover the opening of the container body with a margin, the packing groove is formed concave so that the silicon packing is installed at the edge thereof. Accordingly, when the lid is covered in the state in which the silicone packing is inserted into the package groove, the open end of the silicon packing and the container body is in close contact. In addition, the locking handle is integrally formed on the four sides of the lid so as to be able to pivot outward, and each of the locking handles is formed with a locking hole to correspond to the locking protrusion.

Accordingly, the food is put into the storage space of the container body, and the locking knobs are pressed downward while the lid is closed; The locking protrusion provided on the container body is elastically coupled to the locking hole so that the lid is securely locked. At this time, the silicon packing disposed in the packing groove is pressed while contacting the open end of the container body to prevent the contents leak.

In such a conventional hermetically sealed container, the lid is not easily opened even when the locking knob is lifted upward to release the locking state due to the pressure difference between the internal pressure of the container body and the atmospheric pressure. That is, when the airtight storage container is stored in a cool place such as a refrigerator for a long time, the internal pressure is kept lower than atmospheric pressure; If the container is taken out in this state, there is a disadvantage in that the lid is difficult to open due to an air pressure difference from the atmospheric pressure, and this phenomenon is more severe when the size of the airtight container is larger.

In addition, in the conventional hermetically sealed container there is no separate configuration capable of releasing the internal pressure without opening the lid, it can not be used directly for cooking, such as microwave oven in the lid closed state.

The present invention is to solve this problem; An object of the present invention is to provide a "sealing lid for food storage containers with an internal pressure release function" that can easily open the sealing lid even when the internal pressure of the food storage container is lower than the atmospheric pressure by installing a valve device on the sealed lid. will be.

In addition, another object of the present invention is to provide a "sealing lid for a food storage container with an internal pressure release function" that can easily open the sealing lid through the valve device, as well as excellent sealing force.

In addition, another object of the present invention to provide a "sealing lid for food storage containers with an internal pressure release function" that can automatically exhaust the internal pressure through the valve device when the internal pressure of the container is significantly higher than the atmospheric pressure. will be.

The present invention for achieving this object is;

A lid body provided in a plate shape to cover an open upper portion of the food storage container and provided with a packing mounting portion along an edge thereof; A packing provided in the shape of a strip to be coupled along the packing mounting part of the lid main body and having a lip-type close contact part in close contact with the inner surface of the food storage container while being elastically deformed in the process of covering the lid main body; In the closed lid for a food storage container having an internal pressure release function disposed in the central portion of the lid body and having a valve device for selectively communicating the inside of the food storage container with the atmosphere;

The valve device; It is made to have a cylindrical wall surface with the upper and lower portions open to the central portion of the lid body, the inner wall is provided to protrude in the form of a belt, the exhaust groove is formed in the vertical direction from the uppermost inner wall to the lowest part of the hook frame Elevating-guide section; A lower end portion is disposed to be capable of raising and lowering the lifting and lowering guide portion, and an outer ring is formed at an outer circumference to form a stepped upper ring portion formed of a hollow portion, and a flange on an upper portion of the upper shaft portion exposed to the lid body. It is provided in the form and the upper valve body having a handle portion perforated the valve hole in the center; Is disposed in the O-ring groove of the upper valve body is in close contact with the inner wall of the elevating-guide portion, as the upper valve body is raised or lowered is located on the upper or lower side of the engaging frame to selectively open and close the exhaust groove A ring; It is coupled to the lower outer edge of the upper shaft portion of the upper valve body in the lower portion of the lid body and lowered integrally and the lower shaft portion to maintain a gap between the inner wall and the elevating-guide portion, and can be caught on the lower surface of the lid body A lower valve body having a stopper part provided in a flange shape at a lower end of the lower shaft part to be provided; A poppet valve unit mounted to a valve hole of the upper valve body to open the valve hole according to an internal pressure of the food storage container; It is characterized by including.

In addition, the present invention; The food is stored when the lower valve body is lifted together with the upper valve body on the upper surface of the stopper part so that the stopper part is caught on the lower surface of the lid body, and the o-ring is positioned on the upper side of the catch frame to open the exhaust groove. The communication groove for communicating the inner space of the container and the exhaust groove is characterized in that it is formed concave to have a step.

In addition, the present invention; The poppet valve unit is seated in the valve seat portion provided in the valve hole of the upper valve body and the valve head portion for selectively opening and closing the valve hole, and provided in the center of the valve head portion through the valve hole to the upper valve A valve body formed of a valve shaft disposed in the upper shaft portion of the sieve to move up and down; A pressure plate provided at a lower end of the valve shaft positioned inside the upper shaft part of the upper valve body through the valve hole to receive the internal pressure of the food storage container; An elastic member having an upper end in contact with an upper end of an upper shaft part of the upper valve body and a lower end joined to an upper end of the pressure plate to elastically support the valve body in a direction in which the valve head of the valve body closes the valve hole; It is characterized by including.

In addition, the present invention; A small diameter portion through which the valve hole of the upper valve body penetrates while the valve shaft of the valve body forms a gap therebetween; It is provided to be extended to the upper portion of the small diameter portion, while forming the valve seat portion characterized in that made of a large diameter portion of the tapered form that the inner diameter gradually increases toward the upper side.

In addition, the present invention; A soft packing is provided on the bottom of the valve head of the valve body so as to be in close contact with the valve seat.

In addition, the present invention; The lifting-guide part is provided at the central portion of the lid body, and the valve mounting portion is formed to be concave so that the handle portion of the upper valve body does not protrude upward from the horizontal height of the lid body.

In addition, the present invention for achieving the above object;

A lid body provided in a plate shape to cover an open upper portion of the food storage container and provided with a packing mounting portion along an edge thereof; A packing provided in the shape of a strip along the packing mounting portion of the lid body and having a lip-shaped close contact portion adhered to the inner surface of the food storage container while being elastically deformed in the process of covering the lid body; In the closed lid for a food storage container having an internal pressure release function disposed in the central portion of the lid body and having a valve device for selectively communicating the inside of the food storage container with the atmosphere;

The valve device; An elevating-guide portion having a cylindrical wall surface having an upper and a lower portion opened at a central portion of the lid body, and having exhaust grooves extending in a vertical direction from an uppermost portion to a central portion; A lower end portion is disposed to be capable of raising and lowering the lifting and lowering guide portion, and a lower outer circumference is provided to be stepped and provided in a flange shape on an upper shaft portion formed of a hollow portion and an upper shaft portion exposed to an upper portion of the lid body. And the upper valve body having a handle portion perforated the valve hole in the center; Disposed on an outer circumferential step of the upper valve body to be in close contact with the inner wall of the elevating-guide part, and the upper valve element is located on the inner wall of the elevating-guide part as the upper or lower part of the elevating-guide part to selectively select the exhaust groove; O-ring opening and closing with; It is coupled to the lower outer edge of the upper shaft portion of the upper valve body in the lower portion of the lid body and lowered integrally and the lower shaft portion to maintain a gap between the inner wall and the elevating-guide portion, and can be caught on the lower surface of the lid body A lower valve body having a stopper part provided in a flange shape at a lower end of the lower shaft part to be provided; A poppet valve unit mounted to a valve hole of the upper valve body to open the valve hole according to an internal pressure of the food storage container; It is characterized by including.

In addition, the present invention; When the lower valve body is raised and lowered along with the upper valve body on the lower side of the lid body lowering-guide portion is characterized in that the stopper portion is formed so as to be held while maintaining a constant gap on the lower surface of the lid body. .

In addition, the present invention; The poppet valve unit is seated on the valve hole of the upper valve body to selectively open and close the valve hole, and is provided in the center of the valve head portion and the upper shaft of the upper valve body through the valve hole A valve body formed of a valve shaft disposed to be able to move up and down inside the unit; A pressure plate provided at a lower end of the valve shaft positioned inside the upper shaft part of the upper valve body through the valve hole to receive the internal pressure of the food storage container; An elastic member having an upper end in contact with an upper end of an upper shaft part of the upper valve body and a lower end joined to an upper end of the pressure plate to elastically support the valve body in a direction in which the valve head of the valve body closes the valve hole; It is characterized by including.

In addition, the present invention; The valve hole of the upper valve body is recessed in the center of the handle portion of the upper valve body, the shaft through-hole is drilled in the bottom center so that the valve shaft of the valve body penetrates forming a gap therebetween, A valve seat portion in which exhaust holes are drilled around the ball; A large diameter portion having a tapered shape provided to extend upward from an edge of the valve seat portion and having an inner diameter gradually increasing toward an upper side thereof; Characterized in that made.

In addition, the present invention; The flexible packing is arranged so that the valve head of the valve body can be in close contact with the bottom edge of the valve seat.

According to the "sealing lid for food storage containers with an internal pressure release function" according to the present invention made of a configuration as described above; Holding the handle of the valve device and pulling it upward, the inside of the food storage container communicates with the atmosphere through the exhaust groove and the communication groove. Accordingly, in the case of opening the sealed lid, the air of the atmosphere naturally flows into the food storage container due to the pressure difference, so that the closed lid can be easily opened. In addition, by pressing the handle portion of the valve device in the closed state closed, the O-ring disposed on the upper valve body blocks the communication between the exhaust groove and the inside of the storage container, there is an advantage that the sealing force is maintained as it is.

In addition, in the valve device applied to the "closed lid for food storage containers with internal pressure release function" according to the present invention as described above, if the internal pressure of the storage container is significantly higher than the atmospheric pressure, the poppet valve unit is opened to operate, It has the effect of automatically exhausting the pressure. Therefore, the food is put in a storage container and can be directly cooked through a microwave oven even when the closed lid to which the present invention is applied has its advantages of superior convenience.

1 is a cross-sectional view showing a food storage container is applied a closed lid according to the first embodiment of the present invention.

Figure 2 is an exploded perspective view showing an extract of the valve device applied to the closed lid according to the first embodiment of the present invention.

3 is a cross-sectional view taken along line III-III of FIG. 2 and is an exploded cross-sectional view of the valve device according to the first embodiment of the present invention.

Figure 4 is a cross-sectional view showing the assembly structure of the valve unit in the valve device according to the first embodiment of the present invention.

5 and 6 sequentially show the assembling process of the valve device in the closed lid according to the first embodiment of the present invention.

Figure 7 shows the operating state of the valve device during the process of closing the closed lid according to the first embodiment of the present invention in a food storage container.

Figure 8 shows the sealing operation through the valve device after closing the sealing lid according to the first embodiment of the present invention in a food storage container.

Figure 9 shows the exhaust operation process through the poppet valve unit of the valve device in the closed lid according to the first embodiment of the present invention.

10 is a cross-sectional view showing a food storage container is applied a closed lid according to a second embodiment of the present invention.

11 is an exploded perspective view showing an extract of the valve device applied to the closed lid according to the second embodiment of the present invention.

FIG. 12 is a cross-sectional view taken along the line II-XIII of FIG. 11 and is an exploded cross-sectional view of the valve device according to the second embodiment of the present invention.

13 is a cross-sectional view showing the assembly structure of the valve unit in the valve device according to the second embodiment of the present invention.

14 and 15 sequentially show the assembling process of the valve device in the closed lid according to the second embodiment of the present invention.

Figure 16 shows the operating state of the valve device during the process of closing the closed lid according to the second embodiment of the present invention in a food storage container.

Figure 17 shows the sealing operation through the valve device after closing the sealing lid according to the second embodiment of the present invention in a food storage container.

Figure 18 shows the exhaust operation process through the poppet valve unit of the valve device in the closed lid according to the second embodiment of the present invention.

10..

Storage container

20,30..Sealed lid

21,31..

Cap body

23,33..Packing

24,34 Valve mounting part 100,300 Valve installation

110,310..Descent-guide part 112,311..Exhaust groove

120,320 Upper valve body 121,321 Upper shaft

124,324 Valve valve 130,330 O-ring

140,340. Lower valve body 141,341 Lower shaft

142,342.stopper 200,400..poppet valve unit

210,410 Valve body 220,420 Pressure plate

230,430..Elastic member

{Description of the Mild Cap according to the first embodiment of the present invention}

Best Mode for Carrying Out the Invention The best mode for carrying out the first embodiment of the present invention will now be described in detail with reference to Figs. 1 to 4 show the structure of the sealing lid according to the first embodiment of the present invention and the valve device applied thereto, Figures 5 and 6 show the assembly process of the valve device according to the first embodiment of the present invention 7 to 9 show the operating state of the valve device according to the first embodiment of the present invention.

Referring to FIG. 1; Food storage container 10 to which the present invention is applied is made of a circular ball (BOWL) form so that the storage space is formed therein, the opening of the food storage container 10 in the plate-type closed lid 20 for opening and closing it. ) Is placed. That is, the food storage container 10 has a bottom surface and a circular side wall, and consists of a ball (BOWL) having an open top (TOP OPEN type). And the sealing lid 20 is coupled along the open sidewall top of the storage container (10).

Sealing lid 20 according to the first embodiment of the present invention to open and close the opening of the storage container 10; The lid body 21 is provided in the form of a circular plate and is provided with a lid body 21 provided with a packing mounting part 22 along an edge thereof, and is formed in a strip shape so as to be coupled along the packing mounting part 22 of the lid body 21. While the cover is elastically deformed in the process of covering the lip-shaped contact portion (23a) in close contact with the inner surface of the side wall of the storage container 10 is provided along the edge of the packing 23, the lid body 21 is disposed in the central container (10) A valve device (100) is provided for selectively communicating or blocking the interior with the atmosphere.

The valve device 100 according to the first embodiment of the present invention can artificially release the internal pressure (vacuum pressure) of the storage container 10 when the sealing lid 20 is to be opened, and the storage container 10 If the internal pressure is significantly higher than atmospheric pressure, it is to be automatically exhausted. In order to install the valve device 100, the valve mounting part 24 is concave so that the handle part 123 of the valve device 100 to be described later does not deviate from the horizontal height of the lid body 21. Formed.

The valve device 100 according to the first embodiment of the present invention for the function as described above has a lifting-guide part 110 formed to have a cylindrical wall surface with the upper and lower portions opened at the central portion of the lid body 21, The upper valve body 120 capable of moving up and down in the upper portion of the lid body 21 through the down-guide part 110, and the upper valve body so as to move up and down while being in close contact with the inner wall of the lifting-down guide part 110 ( O-ring 130 disposed on the outer circumference of the 120, the lower valve body 140 is coupled to the lower end of the upper valve body 120 from the lower portion of the lid body 21 and the upper valve body 120 Poppet valve unit 200 which is mounted to the valve hole 124 and opens the valve hole 124 according to the internal pressure of the food storage container 10 is roughly classified. The detailed structure of each component is shown in FIG. 2. The detailed description with reference to FIG. 4 is as follows.

First, the elevating-guide part 110 is integrally formed to have a cylindrical wall surface of which the upper and lower parts are opened at the center of the valve mounting part 24 of the lid body 21 which is concavely provided, and the hook frame 111 is formed on the inner wall thereof. It is provided to protrude in the form. In addition, the elevating-guide part 110 is formed so that the exhaust groove 112 extends in the vertical direction from the uppermost inner wall to the lowermost part of the engaging frame 111. The exhaust groove 112 is for selectively communicating the inside of the storage container 10 with the atmosphere, and is opened and closed according to the position of the o-ring 130.

In addition, the upper valve body 120 is formed of a hard synthetic resin as a raw material, the lower end of the elevating-guide part 110 is disposed to be accommodated and lowered, and an outer ring has an O-ring groove 122 formed step by step. The upper shaft portion 121 is formed of a hollow portion, and the upper portion of the upper shaft portion 121 exposed to the upper portion of the lid body 21 is provided in the form of outward flanges, the handle portion 123 perforated the valve hole 124 in the center Is defined as The valve hole 124 of the handle portion 123 of the upper valve body 120 is a place where the poppet valve unit 200 is installed, which is formed by the valve shaft 212 of the poppet valve unit 1200 described later. It consists of a small diameter portion 124a penetrating with ease, and a large diameter portion 124c provided with an enlarged inner diameter while forming a valve seat portion 124b on the upper portion of the small diameter portion 124a. The large diameter portion 124c has a tapered shape in which the inner diameter gradually increases toward the upper side, which is to facilitate the exhaust from the moment the valve body 210 of the poppet valve unit 200 is slightly lifted upward. In addition, the lower end of the upper shaft portion 121 of the upper valve body 120 is composed of a stepped portion 125 having a diameter reduced for coupling with the lower valve body 140.

O-ring 130 is made of a soft rubber, disposed in the O-ring groove 122 of the upper valve body 120 is in close contact with the inner wall of the elevating-guide part 110, the upper valve body As the 120 is elevated or lowered, the elastically deformed function is provided to selectively open and close the exhaust groove 112 on the upper or lower side of the engaging frame 111. That is, when the upper valve body 120 is raised so that the O-ring 130 is positioned above the latch frame 111, the exhaust groove 112 communicates with the inside of the storage container 10, whereas the upper valve body 120 is When the 120 is lowered and the O-ring 130 is positioned below the hook frame 111, the communication between the exhaust groove 112 and the inside of the storage container 10 is blocked.

In addition, the lower valve body 140 is also formed of a hard synthetic resin as a raw material, the lower portion of the upper shaft portion 121 of the upper valve body 120 of the lower portion of the lid body 21, that is, the step portion 125 The lower shaft portion 141 and the lower shaft portion 141 are coupled to the lower and lower portion of the lid body 21 to maintain a predetermined gap between the inner wall of the elevating and lowering-guide portion 110. It is defined as a stopper portion 142 provided in the form of outward flange at the bottom. The lower shaft portion 141 of the lower valve body 140 may be integrally coupled to the stepped portion 125 of the upper valve body 120 by applying an interference fit method or an adhesive, and then fixing it. In addition, a communication groove 143 is formed in the upper surface of the stopper part 142 of the lower valve body 140 to have a step so that the internal space of the storage container 10 and the exhaust groove 112 can communicate with each other. Accordingly, the lower valve body 140 is elevated together with the upper valve body 120 so that the stopper part 142 is caught by the lower surface of the lid body 21 and the O-ring 130 is positioned above the latch frame 111. When the exhaust groove 112 is opened, the internal space of the storage container 10 and the atmosphere are communicated through the exhaust groove 112 and the communication groove 143.

On the other hand, the poppet valve unit 200 is for automatically opening the valve hole 124 when the internal pressure of the storage container 10 is significantly higher than the atmospheric pressure in the communication state of the exhaust groove 112 is blocked; The valve body 210 which is disposed to move up and down through the valve hole 124 of the upper valve body 120 and is provided at the lower end of the valve body 210 to receive the internal pressure of the storage container 10. The pressure plate 220 and the elastic member 230 for elastically supporting the valve body 210 in the direction of closing the valve hole 124 is provided. The valve body 210 is seated on the valve seat portion 124b provided in the valve hole 124 of the upper valve body 120, and the valve head portion 211 for selectively opening and closing the valve hole 124, and the valve head It is defined as a valve shaft 212 provided in the center of the portion 211 and penetrates the valve hole 124 and is disposed in the upper shaft portion 121 of the upper valve body 120 to move up and down. The bottom of the valve head portion 211 of the valve body 210 is provided with a soft (silicon material) packing 213 to be in close contact with the valve seat portion 124b. And the lower end of the valve shaft 212, the pinhole 212a is perforated in a rectangular shape, this is to install so that the pressure plate 220 is not separated through the square fixing pin 240. In addition, the pressure plate 220 through the fixing hole 240 at the lower end of the valve shaft 212 is located inside the upper shaft portion 121 of the upper valve body 120 through the valve hole 124 with ease. Is installed. The lower surface of the pressure plate 220 is formed with a pin seating groove (see Fig. 2, not given) in the horizontal direction so that the fixing pin 240 penetrating the lower end of the valve shaft 212 is not seated. The elastic member 230 is configured as a coil spring in the embodiment of the present invention, the upper end thereof is in contact with the upper end of the upper shaft portion 121 of the upper valve body 120 and the lower end thereof is disposed to be bonded to the upper end of the pressure plate 220. do. Accordingly, as shown in FIG. 4, the valve head 211 of the valve body 210 elastically supports the valve body 210 in the direction in which the valve hole 124 is closed (see arrow direction in FIG. 4). .

An assembly process of the valve device according to the first embodiment of the present invention configured as described above will be described with reference to FIGS. 4 to 6.

First, as shown in FIG. 4, the poppet valve unit 200 is assembled to the upper valve body 120, and the O-ring 130 is inserted into the O-ring groove 122. In this state, as shown in FIG. 5, the upper shaft portion 121 of the upper valve body 120 is fitted to the elevating-guide portion 110 at the upper portion of the valve body 21 and the valve mounting portion 24.

And, as shown in Figure 6, the lower body (121) of the upper shaft portion 121 of the upper valve body 120 is assembled to the elevating-guide portion 110 in the lower portion of the valve body 21, the valve mounting portion 24; 125 is assembled by fitting the lower shaft portion 141 of the lower valve body 140 (see arrow direction in FIG. 6). Accordingly, the o-ring 130 disposed on the upper valve body 120 is assembled to be able to selectively open or close the exhaust groove 112 by lifting up and down based on the catching frame 111.

Next, the operation of the valve device of the closed lid according to the first embodiment of the present invention configured as described above and the effects thereof will be described with reference to FIGS. 7 to 9.

First, as shown in Figure 7, put the food (F) to be stored in the storage space of the storage container 10 and covers the sealing lid 20 in its opening. Therefore, the edge of the sealing lid 20 covers the outer edge of the opening of the storage container 10, the packing 23 of the bottom of the sealing lid 20 is in close contact with the inner surface of the side wall of the storage container (10). That is, the close contact portion 23a of the packing 23 is in close contact with the inner surface of the side surface of the storage container 10 while being elastically deformed. Part of the air in the storage container 10 in the process of covering the sealing lid 20 is the communication groove 143 → the gap between the elevating-guide portion 110 and the lower valve body 140, the lower shaft portion 141 → By escaping to the outside through the exhaust groove 112, it is possible to easily cover the sealing lid 20 (dotted arrow direction of Figure 7).

As shown in FIG. 8, when the upper lid 100 of the valve device 100 is completely covered with the sealing lid 20 completely lowered (arrow A direction), the lifting and lowering-guide part 110 is removed. The lower valve body 140 descends together with the upper valve body 120.

At this time, the O-ring 130 is positioned below the latch frame 111 while being elastically deformed, the exhaust groove 112 is blocked communication with the internal space of the storage container (10). Therefore, the inside of the storage container 10 is maintained in a state completely blocked from the atmosphere. At this time, the downward movement of the valve device 100 is because the O-ring 130 is elastically deformed, so that the locking frame 111 is forcibly crossed, the user can easily recognize the lowering degree.

Therefore, the artificial pressure to open the airtight lid 20 without opening the exhaust grooves 112 through the valve device 100 generates a vacuum pressure inside the storage container 10, and thus close packing of the packing 23. The part 23a is maintained in a state of being in close contact with the inner surface of the storage container 10.

On the other hand, if you want to open the closed lid 20, hold the handle portion 123 of the upper valve body 120 and lift it upwards (see Fig. 1). The upper movement of the upper valve body 120 is made until the stopper portion 142 of the lower valve body 140 touches the bottom surface of the lid body 21. As such, when the valve device 100 is lifted upward and the o-ring 130 is positioned above the latch frame 111, the exhaust groove 112 and the communication groove 143 of the elevating-guide part 110 are positioned. Through the storage container 10 and the atmosphere is communicated through. Therefore, air in the atmosphere is introduced into the storage container 10 through the exhaust groove 112 and the communication groove 143 of the sealed lid 20 in the process of opening the sealed lid 20, thereby closing the sealed lid ( 20) can be easily opened.

On the other hand, using the closed lid 20 according to the first embodiment of the present invention it is possible to directly cook through a microwave oven in the state in which the food (F) is contained in the storage container (10). That is, when the closed food storage container 10 directly into the microwave oven through the airtight lid 20 according to the first embodiment of the present invention and operate it, the food (F) is cooked inside the food storage container 10. Water vapor is generated and the internal pressure is higher than atmospheric pressure. As shown in FIG. 9, the internal pressure of the storage container 10 lifts the pressure plate 220 upward while winning the elastic support force of the elastic member 230 (coil spring) of the poppet valve unit 200. At the same time, the valve body 210 disposed in the valve hole 124 is lifted upward (see arrow B direction in FIG. 9). Accordingly, the valve hole 124 is opened while the valve head portion 212 of the valve body 210 is separated from the valve seat portion 124b of the valve hole 124, thereby causing the internal pressure of the storage container 10 to be external. Is discharged. When the internal pressure of the storage container 10 drops to the atmospheric pressure level, the valve body 210 is lowered by the elastic support force of the elastic member 230 (coil spring) to close the valve hole 124 again.

As a result, the food container (F) can be cooked directly without a safety accident without opening the closed lid 20 in the storage container 10, thereby improving its convenience of use.

{Description of the sealing lid according to the second embodiment of the present invention}

Hereinafter, with reference to Figures 10 to 18 attached to the embodiment for the second embodiment of the present invention will be described in detail. 10 to 13 show the structure of the sealing lid according to the second embodiment of the present invention and the valve device applied thereto, Figures 14 and 15 shows the assembly process of the valve device according to the second embodiment of the present invention. 16 to 18 show the operating state of the valve device according to the second embodiment of the present invention.

Referring to FIG. 10; Food storage container 10 to which the present invention is applied is made in the form of a circular ball (BOWL) so that the storage space is formed therein, the opening of the food storage container 10 in the plate-type closed lid 30 for opening and closing it ) Is placed. That is, the food storage container 10 has a bottom surface and a circular side wall, and consists of a ball (BOWL) having an open top (TOP OPEN type). And the sealing lid 30 is coupled along the open sidewall top of the storage container (10).

The sealing lid 30 according to the second embodiment of the present invention is to open and close the opening of the storage container 10; The lid body 31 is provided in the form of a round plate and is provided with a lid body 31 provided with a packing mounting portion 32 along an edge thereof, and is formed in a belt shape so as to be coupled along the packing mounting portion 32 of the lid body 31. While the cover is elastically deformed in the process of covering the lip-shaped contact portion 33a in close contact with the inner surface of the side wall of the storage container 10 is provided along the edge of the packing 33 and the lid body 31 is disposed in the storage container (10) A valve device 300 is provided for selectively communicating or blocking the interior with the atmosphere.

The valve device 300 according to the second embodiment of the present invention can artificially release the internal pressure (vacuum pressure) of the storage container 10 when the sealing lid 30 is to be opened, and the storage container 10 If the internal pressure is significantly higher than atmospheric pressure, it is to be automatically exhausted. In order to install the valve device 300, the valve mounting part 34 is concave so that the handle 323 of the valve device 300, which will be described later, does not deviate from the horizontal height of the lid body 31. Formed.

The valve device 300 according to the second embodiment of the present invention for the above function has a lifting-guide part 310 formed to have a cylindrical wall surface with the upper and lower portions opened at the center of the lid body 31, The upper valve body 320 is capable of moving up and down from the upper portion of the lid body 31 through the lower-guide part 310, and the upper valve body so as to be moved up and down while being in close contact with the inner wall of the raising and lowering part 110. O-ring 330 disposed on the outer circumference of the 320, the lower valve body 340 is fitted to the lower end of the upper valve body 320 in the lower portion of the lid body 31 and the upper valve body 320 Poppet valve unit 400 mounted to the valve hole 324 and opening the valve hole 324 in accordance with the internal pressure of the food storage container 10 is roughly divided, the detailed structure of each component is shown in FIG. The detailed description with reference to FIG. 13 is as follows.

First, the elevating-guide part 310 is integrally formed to have a cylindrical wall surface in which the upper and lower portions are opened at the center of the valve mounting portion 34 of the lid body 31 which is concavely provided. In addition, the exhaust grooves 311 are formed on the inner wall of the elevating-guide part 110 to extend from the uppermost end to the central part. The exhaust grooves 311 are for selectively communicating the inside of the storage container 10 with the atmosphere. In the second embodiment of the present invention, six exhaust grooves 311 are provided at intervals of 60 degrees and are opened and closed according to the O-ring 330 position. do.

And the upper valve body 320 is to be molded from a hard synthetic resin raw material; The lower and lower ends of the elevating-guide part 310 are disposed to be capable of elevating, and the inside thereof is disposed on the upper shaft portion 321 formed of a hollow portion and an upper portion of the upper shaft portion 321 exposed to the upper portion of the lid body 31. It is defined as a handle portion 322 is provided in the form of a flange and the valve hole 324 is perforated in the center. The valve hole 324 of the handle portion 322 of the upper valve body 320 is the place where the poppet valve unit 400 is installed, which is recessed in the center of the handle portion 322 of the upper valve body 320. At the bottom center, a circular valve seat portion 324a in which a axial-through hole 324c is formed, through which a poppet valve unit 400 and a valve shaft 412 which will be described later form a gap therebetween, and the valve seat portion is perforated. It consists of a large diameter part 324b which extends an inner diameter upward from the bottom edge of 324a. In addition, an exhaust hole 324d is drilled in the bottom of the valve seat portion 324a around the shaft-through hole 324c, and the large diameter portion 324b has a tapered shape in which the inner diameter gradually increases toward the upper side. This is to facilitate the exhaust through the exhaust hole 324d from the moment when the valve body 410 of the unit 400 is slightly lifted upward. In addition, the lower end of the upper shaft portion 321 of the upper valve body 320 is composed of a stepped portion 323 is reduced in diameter for the coupling of the O-ring 330 and the lower valve body 340.

O-ring (330: O-ring) is made of a soft rubber, is arranged to surround the upper shaft portion 321 of the upper valve body 320 is in close contact with the inner wall of the elevating-guide part 310 As the upper valve body 320 is lifted or lowered, it is elastically deformed and positioned to the upper or center portion of the inner wall of the elevating-guide part 310 to selectively open and close the exhaust groove 311. That is, when the upper valve body 320 is raised so that the O-ring 330 is positioned above the inner wall of the elevating-guide part 310, the exhaust groove 311 communicates with the inside of the storage container 10. When the upper valve body 320 is lowered and the O-ring 330 is positioned at the inner wall center of the elevating-guide part 310, communication between the exhaust groove 311 and the inside of the storage container 10 is blocked. do.

In addition, the lower valve body 340 is also formed of a hard synthetic resin as a raw material, the lower outer portion of the upper shaft portion 321 of the upper valve body 320, that is, the step portion 323 in the lower portion of the lid body 31 The lower shaft portion 341 is coupled to the lower and lower portion of the lower body of the lid main body 341 to maintain a predetermined gap between the inner wall of the elevating and lowering-guide portion 310, the lower shaft portion 341 It is defined as a stopper portion 342 provided in the form of outward flange at the bottom. The lower shaft portion 341 of the lower valve body 340 may be integrally coupled to the stepped portion 323 of the upper valve body 320 by applying an interference fit method or an adhesive and then inserting and fixing it. In addition, the lower valve body 340 is raised and lowered together with the upper valve body 320 so that the stopper part 342 is caught on the lower surface of the lid body 31, and the O-ring 330 is lowered from the lowering-guide part 310. When the exhaust grooves 311 are located on the inner wall and the exhaust grooves 311 are opened, the spaced protrusions 312 for raising and lowering the guide body of the lid body 34 communicate the inner space of the food storage container 10 and the exhaust grooves 311. It is formed at intervals of 90 degrees below the 310. Accordingly, even if the stopper part 342 is maximally lifted and the stopper part 342 is caught on the bottom of the lid main body 31, the gap between the bottom of the lid main body 31 and the stopper part 342 is separated by the spacer protrusions 312. By the formation of a gap, the internal space of the food storage container 10 and the exhaust groove 311 is in communication.

On the other hand, the poppet valve unit 400 is for automatically opening the valve hole 324 when the internal pressure of the storage container 10 is significantly higher than the atmospheric pressure in the state in which communication of the exhaust groove 311 is blocked; The valve body 410 is disposed to move up and down through the valve hole 324 of the upper valve body 320, and is provided at the lower end of the valve body 410 to receive the internal pressure of the storage container 10 The pressure plate 420 and an elastic member 430 for elastically supporting the valve body 410 in the direction of closing the valve hole 324 are provided. The valve body 410 is seated in the valve seat portion 324a constituting the valve hole 324 of the upper valve body 320 and the valve head portion 411 for selectively opening and closing the exhaust hole 324d, and the valve head It is defined as a valve shaft 412 which is provided at the center of the portion 411 and is arranged to be able to move up and down within the upper shaft portion 321 of the upper valve body 320 through the shaft-through hole 324c. In addition, the bottom edge of the valve seat portion 324a on which the valve head portion 411 of the valve body 410 is seated is provided with a soft (silicon material) packing 413 so that the valve head portion 411 may be in close contact. have. And the pressure plate 420 is installed in an interference fit method on the lower end of the valve shaft 412 which is located inside the upper shaft portion 321 of the upper valve body 320 through the shaft-through hole 324c, The hole 421 may be drilled to facilitate the exhaust operation. According to the second embodiment of the present invention, the elastic member 430 is formed of a coil spring type formed through a synthetic resin, the upper end of which is in contact with the upper end of the upper shaft part 321 of the upper valve body 320, and the lower end thereof is pressurized. The plate 420 is disposed to be bonded to the top surface. Accordingly, as shown in FIG. 13, the elastic member 430 is the valve body 410 in the direction in which the valve head 411 of the valve body 410 closes the exhaust hole 324d (see arrow direction in FIG. 13). ) Is elastically supported.

The assembling process of the valve device according to the second embodiment of the present invention configured as described above will be described with reference to FIGS. 13 to 15.

First, as shown in FIG. 13, the poppet valve unit 400 is assembled to the upper valve body 320, and the O-ring 330 is fitted to the stepped portion 323 of the upper shaft part 320. In this state, as shown in FIG. 14, the upper shaft portion 321 of the upper valve body 320 is fitted to the elevating-guide portion 310 at the upper portion of the valve body 31 and the valve mounting portion 34.

As shown in FIG. 15, the upper shaft part 321 lower end of the upper valve body 320 assembled to the elevating-guide part 310 from the lower part of the lid main body 31, the valve mounting part 34; 323, the lower shaft portion 341 of the lower valve body 340 is assembled (see arrow direction in Fig. 15). Accordingly, the o-ring 330 disposed on the upper valve body 320 is located at an upper side or a central portion of the inner wall of the elevating-guide part 311 so that the exhaust groove 311 can be selectively opened or closed. It is assembled.

Next, the operation of the valve device of the closed lid according to the second embodiment of the present invention configured as described above and the effects thereof will be described with reference to FIGS. 16 to 18.

First, as shown in Figure 16, put the food (F) to be stored in the storage space of the storage container 10 and covers the sealing lid 30 in its opening. Therefore, the edge of the sealing lid 30 covers the outer periphery of the opening of the storage container 10, the packing 33 of the lower surface of the sealing lid 30 is in close contact with the inner surface of the side wall of the storage container (10). That is, the close contact portion 33a of the packing 33 is in close contact with the inner surface of the side surface of the storage container 10 while being elastically deformed. Part of the air in the storage container 10 in the process of covering the closed lid 30 is a gap between the stopper portion 342 and the lower surface of the lid body 31 → the elevating-guide portion 310 and the lower valve body 340 A gap between the lower shaft portion 341 and the outer lid portion 341 can be easily covered (by the dashed arrow direction in FIG. 16) by escaping to the outside through the exhaust groove 311.

And as shown in FIG. 17, when fully covering the airtight lid 30 and pushing down the upper valve body 320 of the valve apparatus 300 to the down side (arrow A direction), in the raising-lowering guide part 310, The lower valve body 340 descends together with the upper valve body 320. At this time, the O-ring 330 is located close to the center of the inner wall of the elevating-guide part 310, the exhaust groove 311 is blocked communication with the inside of the storage container 10, thereby storing The interior of the vessel 10 is kept completely isolated from the atmosphere.

Therefore, as the artificial opening of the airtight lid 30 without opening the exhaust grooves 311 through the valve device 300, a vacuum pressure is generated inside the storage container 10, which causes the packing 33 to be in close contact with each other. The part 33a is maintained in a state of being in close contact with the inner surface of the storage container 10.

On the other hand, if you want to open the closed lid 30, hold the handle portion 322 of the upper valve body 320 and lift it up (see Fig. 10). The upper movement of the upper valve body 320 is made until the stopper portion 342 of the lower valve body 340 contacts the spaced protrusion 312 on the bottom surface of the lid body 31. As such, when the valve device 300 is lifted upward and the o-ring 330 is positioned above the inner wall of the elevating-guide part 310, the exhaust groove 311 of the elevating-guide part 310 is opened. Through the storage container 10 and the atmosphere is communicated through. Therefore, air in the atmosphere is introduced into the storage container 10 through the exhaust grooves 311 of the airtight lid 30 in the process of opening the airtight lid 30, thereby easily opening the airtight lid 30. can do.

On the other hand, using the closed lid 30 according to the second embodiment of the present invention, it is possible to directly cook through a microwave oven in the state in which the food (F) is contained in the storage container 10. That is, when the closed food storage container 10 is directly put into a microwave oven through the airtight lid 30 according to the second embodiment of the present invention and operated, the food F is cooked inside the food storage container 10. Water vapor is generated and the internal pressure is higher than atmospheric pressure.

As shown in FIG. 18, the internal pressure of the storage container 10 lifts the pressure plate 220 upward and overcomes the elastic support force of the elastic member 430 of the poppet valve unit 400. The valve body 410 disposed at 324 is lifted upward (see arrow B direction in FIG. 18). Accordingly, the exhaust hole 311 is opened while the valve head portion 411 of the valve body 410 falls from the valve seat portion 324a of the valve hole 324, thereby causing the internal pressure of the storage container 10 to be external. To be discharged. When the internal pressure of the storage container 10 drops to the atmospheric pressure level, the valve body 410 is lowered by the elastic support force of the elastic member 430 to close the exhaust hole 324d again.

The present invention can be widely used in the field of the food storage container for keeping food in a closed or "food sealed container for food containers" that can cook the stored food directly through the microwave.

Claims

A lid body provided in a plate shape to cover an open upper portion of the food storage container and provided with a packing mounting portion along an edge thereof; A packing provided in the shape of a strip to be coupled along the packing mounting part of the lid main body and having a lip-type close contact part in close contact with the inner surface of the food storage container while being elastically deformed in the process of covering the lid main body; In the closed lid for a food storage container having an internal pressure release function disposed in the central portion of the lid body and having a valve device for selectively communicating the inside of the food storage container with the atmosphere;

The valve device is;

It is made to have a cylindrical wall surface with the upper and lower portions open to the central portion of the lid body, the inner wall is provided to protrude in the form of a band, the exhaust groove is formed in the vertical direction from the uppermost inner wall to the bottom of the hook frame Elevating-guide section;

A lower portion of the elevating guide portion is disposed to be capable of raising and lowering the outer periphery is formed in the outer ring is formed in the upper shaft portion and the upper shaft portion made of a hollow portion, and the upper shaft portion exposed to the upper portion of the lid body the flange It is provided in the form and the upper valve body having a handle portion perforated the valve hole in the center;

Is disposed in the O-ring groove of the upper valve body is in close contact with the inner wall of the elevating-guide portion, as the upper valve body is raised or lowered is located on the upper or lower side of the engaging frame to selectively open and close the exhaust groove A ring;

It is coupled to the lower outer edge of the upper shaft portion of the upper valve body in the lower portion of the lid body and lowered integrally and the lower shaft portion to maintain a gap between the inner wall and the elevating-guide portion, and can be caught on the lower surface of the lid body A lower valve body having a stopper part provided in a flange shape at a lower end of the lower shaft part to be provided;

A poppet valve unit mounted to a valve hole of the upper valve body to open the valve hole according to an internal pressure of the food storage container; Sealing lid for food storage containers with an internal pressure release function, characterized in that it comprises a.
The method of claim 1,

An upper surface of the stopper portion;

When the lower valve body is lifted together with the upper valve body so that the stopper part is caught on the lower surface of the lid body, and the o-ring is located on the upper side of the catch frame, and the exhaust groove is opened, the inner space of the food storage container and A sealing lid for a food storage container having an internal pressure release function, characterized in that the communication groove for communicating the exhaust groove is formed concave to have a step.
The method of claim 1,

The poppet valve unit;

A valve head portion seated in a valve seat portion provided in the valve hole of the upper valve body to selectively open and close the valve hole; and an upper shaft portion of the upper valve body provided through the valve hole in the center of the valve head portion. A valve body comprising a valve shaft disposed to be able to move up and down inside;

A pressure plate provided at a lower end of the valve shaft positioned inside the upper shaft part of the upper valve body through the valve hole to receive the internal pressure of the food storage container;

An elastic member having an upper end in contact with an upper end of an upper shaft part of the upper valve body and a lower end joined to an upper end of the pressure plate to elastically support the valve body in a direction in which the valve head of the valve body closes the valve hole; Sealing lid for food storage containers with an internal pressure release function, characterized in that it comprises a.
The method of claim 3, wherein

The valve hole of the upper valve body;

A small diameter portion penetrating while the valve shaft of the valve body forms a gap therebetween;

It is provided to be extended to the upper portion of the small diameter portion, while forming the valve seat portion sealing lid for a food storage container having an internal pressure release function, characterized in that made of a large diameter portion of the tapered shape that the inner diameter gradually increases toward the upper side.
The method of claim 3, wherein

A lower surface of the valve head portion of the valve body;

Sealing lid for a food storage container having an internal pressure release function, characterized in that the soft packing is provided to be in close contact with the valve seat.
The method of claim 1,

A central portion of the lid body;

The lifting and lowering-guide part is provided, and the valve mounting part is concave so that the handle portion of the upper valve body does not protrude upward beyond the horizontal height of the lid body, characterized in that the lid for food storage container with an internal pressure release function. .
A lid body provided in a plate shape to cover an open upper portion of the food storage container and provided with a packing mounting portion along an edge thereof; A packing provided in the shape of a strip along the packing mounting portion of the lid body and having a lip-shaped close contact portion adhered to the inner surface of the food storage container while being elastically deformed in the process of covering the lid body; In the closed lid for a food storage container having an internal pressure release function disposed in the central portion of the lid body and having a valve device for selectively communicating the inside of the food storage container with the atmosphere;

The valve device is;

An elevating-guide portion having a cylindrical wall surface having an upper and a lower portion opened at a central portion of the lid body, and having exhaust grooves extending in a vertical direction from an uppermost portion to a central portion;

A lower end portion is disposed to be capable of raising and lowering the lifting and lowering guide portion, and a lower outer circumference is provided to be stepped and provided in a flange shape on an upper shaft portion formed of a hollow portion and an upper shaft portion exposed to an upper portion of the lid body. And the upper valve body having a handle portion perforated the valve hole in the center;

Disposed on an outer circumferential step of the upper valve body to be in close contact with the inner wall of the elevating-guide part, and the upper valve element is located on the inner wall of the elevating-guide part as the upper or lower part of the elevating-guide part to selectively select the exhaust groove; O-ring opening and closing with;

It is coupled to the lower outer edge of the upper shaft portion of the upper valve body in the lower portion of the lid body and lowered integrally and the lower shaft portion to maintain a gap between the inner wall and the elevating-guide portion, and can be caught on the lower surface of the lid body A lower valve body having a stopper part provided in a flange shape at a lower end of the lower shaft part to be provided;

A poppet valve unit mounted to a valve hole of the upper valve body to open the valve hole according to an internal pressure of the food storage container; Sealing lid for food storage containers with an internal pressure release function, characterized in that it comprises a.
The method of claim 7, wherein

A lower side of the lower-guide part of the lid body;

When the lower valve body is elevated together with the upper valve body sealing lid for food storage container with an internal pressure release function, characterized in that the spacer is formed so that the stopper portion is caught while maintaining a constant gap on the lower surface of the lid body. .
The method of claim 7, wherein

The poppet valve unit;

A valve head part seated on an upper valve hole of the upper valve body to selectively open and close the valve hole, and provided at a center of the valve head part to move up and down within the upper shaft part of the upper valve body through the valve hole; A valve body consisting of a valve shaft disposed to be possible;

A pressure plate provided at a lower end of the valve shaft positioned inside the upper shaft part of the upper valve body through the valve hole to receive the internal pressure of the food storage container;

An elastic member having an upper end in contact with an upper end of an upper shaft part of the upper valve body and a lower end joined to an upper end of the pressure plate to elastically support the valve body in a direction in which the valve head of the valve body closes the valve hole; Sealing lid for food storage containers with an internal pressure release function, characterized in that it comprises a.
The method of claim 9,

The valve hole of the upper valve body;

The valve is provided in the center of the handle portion of the upper valve body, a shaft through-hole is perforated so that the valve shaft of the valve body penetrates through the bottom center, the exhaust hole perforated around the shaft-through hole A seat portion;

A large diameter portion having a tapered shape provided to extend upward from an edge of the valve seat portion and having an inner diameter gradually increasing toward an upper side thereof; Sealing lid for food storage container with an internal pressure release function, characterized in that made.
The method of claim 10,

At the bottom edge of the valve seat portion;

Sealing lid for a food storage container with an internal pressure release function, characterized in that the soft packing is arranged to be in close contact with the valve head of the valve body.
The method of claim 7, wherein

A central portion of the lid body;

The lifting and lowering-guide part is provided, and the valve mounting part is concave so that the handle portion of the upper valve body does not protrude upward beyond the horizontal height of the lid body, characterized in that the lid for food storage container with an internal pressure release function. .