KR930007771Y1 - Container with a vacuum pump - Google Patents

Abstract

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Description

Vacuum Switching Device of Container

1 to 5 are embodiments of the present invention, the first view is a perspective view.

2 is an exploded perspective view of a vacuum pressure valve.

3 is a partial cutaway perspective view of a vacuum pump.

4 is a cross-sectional view of the operating state.

5 is a sectional view of a vacuum pressure gauge.

6a, b, c are cross-sectional views showing different embodiments of the present vacuum pressure valve.

7 is another embodiment of the present invention vacuum pump.

* Explanation of symbols for main parts of the drawings

1: food container 11: container body

12: lid 2: vacuum device

20: vacuum pressure valve 30: vacuum pump

40: vacuum pressure gauge 200: valve support

201: bolt portion 202: hole

203: slope 204: circular return groove

207: end 205, 303, 324, 402, 414: threaded portion

206, 212, 403, 416: Rubber packing 210: Tightening nut

211: adhesion preventing protrusion 220: on-off valve

221: curved surface 222: fixing hole

230: vertical operation bar 231: fixed part

232: stop plate 240, 240a: cap

250: connection hose 300: cylinder

301, 302: turn ring 304: connection portion

310, 420: piston 311: handle

312: fixing protrusion 313: piston packing

320: adsorption portion 322, 412: partition wall

325: adsorption plate 330: air discharge member

330a, 330b: Check valve 331a, 331b: Air passage hole

332a, 332b, 333a, 333b, 411: turnaround

334a, 334b: incision 350: connection hose

351: contact plate 400: outer cylinder

401: air entry hole 410: inner cylinder

242, 413: operating hole 415: locking jaw

421: piston bar 422, 423: piston plate

422a, 423a: annular groove 430: elastic member

This paper relates to a vacuum switching device of a container which is equipped with a vacuum pressure valve in a general food container, and then converts the inside of the container into a vacuum state using a vacuum pump to facilitate long-term storage without food corrosion.

Conventional general food containers are merely containers for food, and when they are stored for a long time, they are corroded and can not be eaten. Most housewives are preparing short-term foods. It was very cumbersome for double- income couples.

In this paper, by installing a vacuum device in such a container, the inside of the container is converted to a vacuum state, which prevents corrosion by inhibiting food fermentation, and thus it is possible to store food for a long time. It is to be noted that the vacuum device in this paper has a configuration and purpose completely different from those used in general food companies.

In other words, the vacuum device of a food company is to protect the contents of cans, canned foods, etc. This is a device that can be opened only when food is sealed by sealing cans and canned foods. By allowing consumers to use freely and selling with containers, even if the purchase price is higher than the container, the product is not intended to reduce the consumer's economic burden.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 through 5 are examples of the present design, reference numeral 1 denotes a general food container, and the food container 1 may be a container having any shape as long as it is a container composed of the container body 11 and the lid 12. However, the container body 11 and the lid 12 should be able to maintain the airtight in the assembled state.

Reference numeral 2 denotes a vacuum device of the present disclosure, and the vacuum device 2 includes a vacuum pressure valve 20, a vacuum pump 30, and a vacuum pressure gauge 40.

The vacuum pressure valve 20 and the vacuum pressure gauge 40 are fixedly installed on the lid 12 to exhaust the air in the container body 11 and to express the internal pressure, and the vacuum pump 30 is stored separately. Only when used, it is installed in the vacuum pressure valve 20 to suck out the air in the container body (11).

Therefore, each component of the vacuum apparatus 2 will be described in detail.

The vacuum pressure valve 20 is composed of a valve support 200, a tightening nut 210, the opening and closing valve 220, the vertical operation bar 230, the cam 240.

The valve support part 200 uses a stainless steel or rubber material that does not corrode, and protrudes the bolt part 201 at the center of the bottom surface, and passes through the hole 202 at the center of the bottom surface thereof, and then opens the hole 202. A conical inclined surface 203 is formed to be inclined downwardly, and a plurality of circular return grooves 204 are formed at a predetermined interval at the boundary where the hole 202 and the inclined surface 203 meet, and a threaded portion 205 is formed on the outer circumferential surface. .

The tightening nut 210 uses stainless steel or rubber which does not corrode, and protrudes a plurality of adhesion preventing protrusions 211 at a predetermined interval on a bottom surface thereof.

Thereafter, the valve support part 200 is inserted into the upper surface of the lid 12 so that the bottom surface of the valve support part 200 comes into close contact with the upper surface of the lid 12, and at the same time, the bolt part 201 protrudes downward. The bolt nut 210 is screwed to the bolt portion 201 to integrate the valve support 200 and the tightening nut 21 into the lid 12.

In this case, in order to maintain airtightness, rubber 206 and 212 may be installed between the valve support part 200 and the lid 12, the fastening nut 210, and the lid 12, respectively.

The on-off valve 220 uses a flexible rubber material, in addition to any material may be used as long as it is a flexible material.

The on-off valve 220 is formed in a conical shape, the upper surface is formed to be inclined downward toward the center of the conical curved surface 221 is formed gradually thinner toward the outer periphery, the bottom of the fixing hole of the vertical operation bar 230 After the 222 is formed, the on / off valve 220 is installed in close contact with the inclined surface 203 of the valve support part 200.

The fixing hole 222 is formed as a screw hole or a "T" type hole to facilitate disassembly and assembly with the vertical operation bar 230 to be described later.

The up and down operation bar 230 is manufactured in the same shape as the push rod of the syringe, the cross section is formed in the "+" shape to facilitate the access of air, the fixing part 231 at the upper end, the stop plate ( 232), respectively.

The fixing part 231 is formed as a screw part or "T" in the fixing hole 222 of the on-off valve 220 to facilitate disassembly and assembly.

Thereafter, the fixing part 231 of the vertical operation bar 230 is assembled into the fixing hole 222 of the on-off valve 220 to integrate the stop plate 232, and the contact preventing protrusion 211 of the tightening nut 210 is integrated. It is inserted into the hole 202 of the valve support part 200 to prevent excessive upward movement by being caught in the upper and lower operation part 230 when the up and down operation bar 230 is installed in the hole 202 and is automatically moved up and down. The shape of "+" makes it easy to enter and exit the air.

The cap 240 is a safety device, by forming a screw portion 241 on the outer circumferential surface to be screwed to the screw portion 205 of the valve support portion 200 when the food is stored, the careless opening and closing of the valve 220 To prevent the opening and to convert the interior of the container body 11 into a vacuum state, the cap 240 is separated from the valve support part 200.

The vacuum pump 30 is composed of a cylinder 300, the piston 310, the suction unit 320, the air discharge valve member 330.

The cylinder 300 has protrusions 301 and 302 formed on the upper and lower inner circumferential surfaces thereof, respectively, and a thread 303 is formed on the lower circumferential surface thereof.

The piston 310 has a handle portion 311 at the top, and a fixing protrusion 312 at the bottom, respectively, the fixing protrusion 312 is formed by a screw portion or "T" type projection to facilitate disassembly and assembly. .

Thereafter, the piston packing 313 is inserted into the fixing protrusion 312 to facilitate disassembly and assembly.

The piston 310 is inserted into the cylinder 300 to be reciprocated up and down, but the piston packing 313 is fitted so as not to fall out by the upper and lower circumference 301, 302.

The adsorption part 320 may be made of a rubber material of a circular tube, but may have any shape other than a quadrangle or other shape. Perforations 323, respectively, to form a screw portion 324 on the upper inner surface, and forms a flexible suction plate 325 at the lower end.

Thereafter, the threaded portion 324 of the suction part 320 is screwed into the threaded portion 303 of the cylinder 300 to be integrated.

The air discharge valve member 320 is a check valve 330a, 330b of rubber material, respectively, to be fixedly installed in the installation holes 322, 323 of the adsorption part 320 to intake and discharge air. Each of the check valves 330a and 330b forms air passage holes 331a and 331b having one end closed in the center thereof, and each of the annular 332a, 332b, 333a and 333b ends and outer portions of the outer circumferential surface thereof. ), And the projections 332a and 332b on the end side are formed on the open side of the air passage holes 331a and 331b, respectively, based on the projections 333a and 333b on the intermediate side. The cutouts 334a and 334b are formed outside.

The check valves 330a and 330b are inserted into the mounting holes 322 and 323 of the suction unit 320, respectively, so as to prevent the check valves 330a, 332b, 333a and 333b from being fixed. do.

Accordingly, the air flowing out through the vacuum pressure valve 20 is sucked into the cylinder 300 by opening the shank valve 330a by the suction force during the ascending operation of the piston 310, and at the same time, the other check valve 330b is closed. Air to be sucked into the cylinder 300 is not exhausted to the outside, and the one-side check valve 330a is closed by the air pressure when the piston 310 is lowered so as not to be discharged back to the vacuum pressure valve 20 side and at the same time. The check valve 330b is opened to exhaust the air sucked into the cylinder 300 to the outside.

The vacuum pressure gauge 40 is composed of an outer cylinder 400, an inner cylinder 410, a piston 420, and an elastic member 430.

The outer cylinder 400 is made of a transparent plastic material, the air entry hole 401 is formed in the middle of the upper surface, the lower end is opened to form a screw portion 402 on the inner peripheral surface.

The inner cylinder 410 is made of a transparent plastic material through which the upper and lower ends are opened, respectively, and the protrusion 411 and the partition wall 412 are formed at the upper and middle portions of the inner circumferential surface, respectively, and in the center of the partition wall 412. When the operation hole 413 is formed, the lower end of the outer peripheral surface, the end screw portion 414 and the locking ring jaw 415 are formed, respectively, and the upper and lower operation of the piston 420 to be described later by marking the scale in the height direction on the outer peripheral surface thereof. Allow to measure vacuum pressure.

Thereafter, the outer cylinder 400 is fitted on the outside of the lid 12, the inner cylinder 410 is fitted into each other by screwing the threaded portion 402 and 414 into each other on the inner side, and the lid 12 is integrated. Rubber seals (403) and (416) are installed respectively for airtightness.

The piston 420 is integrally formed with the piston plate 422, 423 at the upper and lower ends of the piston bar 421, but the piston plate 423 at the lower end side is screwed with the piston bar 421 to disassemble it. To facilitate the assembly, a plurality of annular grooves (422a, 423a) are formed on the outer circumferential surface of each piston plate (422, 423), respectively, to minimize the inner cylinder 410 and the sliding friction to prevent air leakage. .

The piston 420 is installed to the upper and lower reciprocating transfer to the inner cylinder 410, the piston bar 421 is installed in the operation hole 413 formed in the partition wall 412 of the inner cylinder 410 and the upper piston plate 422 is installed on the upper side relative to the partition wall 412, the lower piston plate 423 is installed to be located on the lower side of the partition wall 412, respectively, between the partition wall 412 and the lower piston plate 423 The rubber packing 417 is fixed to the partition 412 so as to be positioned at.

The elastic member 430 is shown in the present spring, but any other material may be used as long as it is elastic material such as rubber.

The elastic member 430 is elastically installed between the partition wall 412 of the inner cylinder 410 and the upper piston plate 422 of the piston 420 to always push up the piston 420 to the upper side, and the vacuum pressure Despite the elasticity of the elastic member 430 during the operation of the piston 420 by forcibly lowered to measure the vacuum pressure.

And Figure 6 shows another embodiment of the vacuum pressure valve 20 of the present invention, (a) is the same as the configuration of the embodiment of the present invention except that the end portion 207 in the middle of the hole 202 of the valve support 200 ) To expand the hole size so that the stop plate 232 of the upper and lower operation bars 230 can be inserted, and at the same time, the adhesion preventing protrusion 211 protruding from the tightening nut 210 is provided with a valve support part ( Protruding to the end 206 of the 200, so that the stop plate 232 of the up and down operating bar 230, the length of the up and down operating bar 230 is also reduced to reduce the vacuum pressure valve ( Make sure you fully play the role of 20).

In addition, (b) is composed of the vacuum pressure valve 20 of the valve support portion 200, the on-off valve 220, the upper and lower operation bar 230, the valve support portion 200 of the tightening nut 210 It is formed in a cross-sectional shape "C" shaped so that it can be fixed to the lid 12 without need, and protrudes the contact preventing projections 211 on the bottom of the valve support 200.

Finally, (c) is the same as the configuration of the embodiment of the present invention, but the stop plate 232 of the upper and lower operation bar 230 is installed to be located at the top, and the operating hole ( 242 is formed so that the up and down operation bar 230 is installed to operate up and down, but the stop plate 232 is installed to be located outside the cap 240, the operation hole 242 of the cap 240 Proximally forming the contact preventing projections 211 at the periphery of the bottom on the basis of the on-off valve 220 so as to facilitate the exhaust of the air.

At this time, for the safety of the upper and lower operation bar 230, a separate cap 240a is inserted into the cap 240,

And Figure 7 shows another embodiment of the present invention vacuum pump 30, the configuration is the same as the configuration of the above embodiment, but the cylinder 300 and the adsorption portion 320 is separated from this connection hose 340 Connected.

That is, after forming the lower part of the cylinder 300 in a closed form, the check valves 330a and 330b of the air discharge member 330 installed in the adsorption unit 320 in the above-described embodiment are respectively searched at the center and the side wall thereof. At the same time, the connection part 304 is extended to the bottom surface and fixed to the connection hose 340, and the adsorption part 320 simply forms the adsorption plate 325, and simultaneously attaches the other end of the connection hose 340 to the adsorption part 320. ) To induce air flow.

At this time, when the adsorption unit 320 and the connection hose 340 is connected in this paper, the connection hose 340 is inserted into the center of the adsorption unit 320, and then a separate close contact tube 341 is securely connected to the connection hose 340. It is not limited to this, but any fastening means can be used as long as it can maintain a firm fixation and tightness.

The operational effects of the proposed paper thus constructed are as follows.

When the food in the food container 1 is to be stored for a long time, the adsorption part 320 of the vacuum pump 30 is fixed to the cap 12 and the vacuum pressure valve 20 in the adsorption part 320 is fixed. To be installed.

That is, when the flexible suction plate 325 is pressed onto the upper surface of the lid 12 so that the vacuum pressure valve 20 is inserted into the suction part 320, the suction pressure is firmly fixed as shown in FIG. 4 and then the vacuum pump 30 Raising the piston 310 of the same as the virtual line of FIG. 4 will generate a vacuum pressure inside the cylinder 300.

That is, when the piston 310 is raised by holding the handle portion 311 and the cylinder 300 of the piston 310 with both hands, the volume in the cylinder 300 gradually increases since the piston 310 rises like a virtual line in FIG. 4. The vacuum pressure is generated as it is lost.

However, the check valves 330a and 330b of the air discharge member 330 are installed in the cylinder 300, respectively, so that the cutout 334a of the check valve 330a installed on the partition wall 321 is opened when the vacuum pressure is generated. The cutout 334b of the shank valve 330b provided at the side wall is closed.

Accordingly, the open check valve 330a causes the vacuum pressure to be generated at the bottom of the partition 321 of the suction unit 320 at the same time, and the on / off valve 220 of the vacuum pressure valve 20 is generated by the vacuum pressure. Is raised upward by the suction force of the vacuum pressure.

That is, since the upper surface of the on-off valve 220 is formed as the curved surface 221, the suction force acts on the curved surface, so the on-off valve 220 is naturally raised.

As the opening and closing valve 220 rises between the inclined surface 203 of the valve support part 200 and the conical open / close valve 220, the suction part 320 and the cylinder 300 inside the container body 11 are Each of them communicates with each other to suck air in the container body 11 by suction force of vacuum pressure.

At this time, when the on-off valve 220 is raised, the up and down operation bar 230 fixedly installed thereon is also raised at the same time, and the on-off valve 220 is removed from the valve support part 200 due to excessive rise of the on-off valve 220 to be raised. The stop plate 232 of the up and down operation bar 230 is caught by the adhesion preventing protrusion 211 of the valve support 200 to prevent it.

Therefore, the opening and closing valve 220 is further controlled by the interaction bar 230, and even if the stop plate 232 of the up and down operation bar 230 is projected at a predetermined interval even if the stopper projection 211 is caught. Air in the container body 11 is drawn out between the plurality of adhesion preventing projections 211.

That is, the air in the container body 11 passes through the hole of the tightening nut 210 and the hole 202 of the valve support 200 by the suction force, wherein the vertical operation bar 230 has a "+" type cross section. It is made to be exhausted easily by each said hole.

Therefore, the air in the container body 11 is exhausted into the adsorption part 320 between the inclined surface 203 of the valve support part 200 and the conical open / close valve 220, and the air exhausted into the adsorption part 320 continues. The suction is sucked into the cylinder 300 through the cutout 334a of the check valve 330a.

Therefore, when the piston 310 of the vacuum pump 30 continuously rises and the piston packing 313 is caught by the upper side circumference 301 of the cylinder 300, no further rise is prevented and suction force is not generated.

That is, since the air in the cylinder 300 is compressed due to the lowering of the piston 310, the cutout 334b of the check valve 330b is opened by the air pressure, and the air in the cylinder 330 is exhausted to the outside and the other shank is opened. The cutout 334a of the valve 330a is blocked to prevent backflow into the container body 11.

Therefore, when the piston 310 descends to discharge the air in the cylinder 300 and at the same time the piston packing 313 is caught by the lower side ring 302, the piston valve 330 is prevented from falling further to protect the check valves 330a and 330b. do.

On the other hand, when the piston 310 descends, the vacuum pressure valve 20 is clogged by the check valve 330a, and the air sucked from the container main body 11 remains in the space below the suction part 320, but the atmospheric pressure remains. (11) Since some vacuum pressure is formed due to forced exhaust of air, the on / off valve 220 is sucked by the vacuum pressure of the container body 11 to lower the on / off valve 220.

Then, as described above, the air in the container body 11 is gradually exhausted to the outside by the continuous up and down operation of the piston 310 to be converted into a vacuum state, and the inside of the container body 11 is gradually vacuumed. By switching, the on-off valve 220 when the piston 310 descends is opened and closed more quickly to prevent leakage of air.

Therefore, when the interior of the container body 11 is converted to a vacuum state, the food contained therein does not come into contact with air, thereby preventing its own fermentation, thereby keeping the original state for a long time.

Since the vacuum pump 30 is to be separated from the food container 1 after the inside of the food container 1 is converted into a vacuum state, the adsorption plate 325 of the adsorption part 320 is separated from the lid 12 at this time. When the periphery of 325 is pulled upward, the lower part in the adsorption part 320 switches from the vacuum state to the atmospheric pressure state, so that the vacuum pump 30 can be easily separated by the separation of the adsorption part 320.

On the contrary, when the inside of the food container 1 is to be switched to the atmospheric pressure state, the cap 240 is disassembled from the valve support part 200, and then lifted upward by holding one outer circumference of the open / close valve 220. Between the conical inclined surface 203 and the conical open / close valve 220, and when the circular return groove 204 of the valve support portion 200 is exposed, the circular return groove 204 and the hole 202 are exposed. Through the food container (1) through the food container (1) is instantaneously switched to the atmospheric pressure state that the lid 12 can be easily separated from the container body (11).

Meanwhile, when the inside of the container body 11 is converted into a vacuum state, the internal vacuum pressure of the container body 11 should be measured to prevent damage and deformation of the container body 11 in advance. (40) shall be measurable with the eyes of the consumer.

Therefore, when switching to the vacuum state, the vacuum pressure is also transmitted to the vacuum pressure gauge 40. A suction force acts by the generation of the vacuum pressure in the container body 11 to pull the piston plate 423 on the lower side of the piston 420. .

At this time, the elastic member 430 is installed between the upper piston plate 422 and the partition wall 412 of the inner cylinder 410, but the suction force is stronger than the elasticity, so the piston 420 is forcibly lowered.

When the piston 420 is lowered, the volume gradually widens between the upper piston plate 422 and the upper portion of the outer cylinder 400. At this time, if the air is not naturally supplied to the upper portion of the outer cylinder 400, a vacuum pressure is generated. Since the piston 420 can not be lowered at this time through the air access hole 401 perforated in the upper end of the outer cylinder 100 is to naturally suck and fill the external air during the lowering of the piston 420.

Therefore, as the piston 420 is lowered, the upper piston plate 422 is positioned on the scale developed on the inner cylinder 410 so that the current air pressure can be measured, and the vacuum pressure inside the container body 11 gradually increases. The higher the piston 420 is further lowered so that it is possible to maintain a constant vacuum pressure in the container body (11).

On the contrary, when atmospheric pressure acts on the container body 11, the piston 420 is restored to its original state by the elasticity of the elastic member 430 installed between the piston 420 and the outer cylinder 400.

As described above, when the container body 11 is converted to vacuum pressure, the vacuum pump 30 is detached from the lid 12 in the above-described manner to be stored for a long time, and then, to prevent inadvertent release of the vacuum pressure valve 20. The safety device cap 240 is screwed to the valve support 200.

In another embodiment of the present disclosure, the vacuum pressure valve 20 may be configured as the sixth, b, and c degrees, for example, in the case of (a), a plurality of anti-contact protrusions at the end 206 of the valve support part 200. The stop plate 232 of the up and down operating bar 230 is formed by forming a predetermined interval (211), the operation process is the same as the above-described embodiment, so a detailed description thereof will be omitted.

In addition, in the case of (b), the production efficiency can be improved by simplifying the parts, and this structure is for short-term storage, and this also allows the air to be sucked out during the up and down operation of the shut-off valve 220, so a detailed description thereof is omitted. do.

In addition, in the case of (c), the position of the up and down operation bar 230 is changed, and since the other operation process is the same as the above-described embodiment, detailed description thereof will be omitted, but the stop plate of the up and down operation bar 230 will be omitted. There is only a difference in the configuration so that the 232 is exposed to the outside to open and close the operation hole 242 formed in the cap 240, other operations are the same as the above-described embodiment, and thus a detailed description thereof will be omitted. In order to protect the up and down operation bar 230, another cap 240a is covered on the cap 240 to prevent inadvertent release of the vacuum state.

As another embodiment of the vacuum pump 30 of the present disclosure, as shown in FIG. 7, the cylinder 300 and the suction unit 320 are connected to each other by a connection hose 340 to provide a user's convenience. Since the check valves 330a and 330b of the 330 are directly installed in the cylinder 300, the configuration and operation are the same except for the other points, so the detailed description thereof will be omitted.

In addition, the inclined surface 203 of the valve support part 200 and the open / close valve 220 of the conical shape are intended to prevent air leakage. By forming it, the contact area can be widened and at the same time, it can be kept more airtight under the action of atmospheric pressure or vacuum pressure.

In addition, when the original return groove 204 of the valve support part 200 is to release the vacuum pressure state of the food container 1, the vacuum pressure is applied to the food container 1 so that the suction force pulls the on / off valve 220. Since the on-off valve 220 can not be easily separated at this time, by lifting the periphery of the on-off valve 220 to facilitate the separation of the valve support 200 and the on-off valve 220, that is, the valve support ( The contact surface of the valve 200 and the on-off valve 220 is easily separated from each other, but since the vacuum pressure is formed in the hole 20 of the valve support 200, it is difficult to open the hole 202 at this time. When the on-off valve 220 is separated by using the contact surface between the valve support part 200 and the on-off valve 220, a plurality of circular return grooves 204 are first opened before the opening 202 is opened. Atmospheric pressure is supplied into the hole 202 and the food container 1 through 2) to easily separate the on-off valve 220 located in the area.

The curved surface 221 formed on the upper surface of the on-off valve 220 is easily opened by strongly applying a suction force to the on-off valve 220 by a vacuum pressure action under the suction part 320 during the upward operation of the piston 310. It is to make it possible.

Each of the annular grooves 422a and 423a of the upper and lower piston plates 422 and 423 installed on the piston 420 of the vacuum pressure gauge 40 has air in the atmosphere by the vacuum suction input in the food container 1. In order to prevent the suction between the inner cylinder 410 and the piston 420 and at the same time to minimize the friction area between the inner cylinder 410 and the piston 420 to extend the life by preventing wear.

In this way, this paper can store food for a long time by installing a vacuum device in a general food container, which can be convenient for consumers, especially for working couples, and the price is not expensive enough to burden the consumer. And useful.

Claims (23)

The vacuum pressure valve 20 is mounted on the lid 12 of the food container 1 including the container body 11 and the lid 12, and then a separate vacuum pump 30 is pressed onto the lid 12, but the vacuum pump The vacuum pressure valve 20 is inserted into the 30 and the air pressure in the food container 1 is forced out by the opening and closing operation of the vacuum pressure valve 20 by the operation of the vacuum pump 30 to exhaust the food to the outside. A vacuum switching device for a container, wherein the inside of the container 1 is converted into a vacuum state. According to claim 1, wherein the vacuum pressure valve 20 is fixed to the valve support portion 200 is installed on the lid 12, the opening and closing valve 220 in the upper portion of the hole 202 formed in the valve support portion 200 Installing and opening and closing, the vacuum switching device of the container, characterized in that the one end of the up and down operation bar 230 is fixed to the on-off valve 220 to control the excessive upward movement. The apparatus of claim 2, wherein the upper surface of the valve support part 200 is formed to be inclined downward to form a conical inclined surface 203, and then close to the conical open / close valve 220 to prevent leakage. . 4. The vacuum switching device of a container according to claim 3, wherein a circular return groove (204) is formed at a boundary between the hole (202) of the valve support (200) and the inclined surface (203). The container of claim 1 or 2, wherein a curved surface (221) is formed on an upper surface of the open / close valve (220). According to claim 2, The valve support 200 is a vacuum switching device of the container, characterized in that fixed to the cap (12) with a tightening nut (210). The method of claim 2 or 6, wherein the contact preventing protrusion 211 is formed on the bottom surface of the valve support portion 200 so that the stop plate 232 of the up and down operation bar 230 is caught while at the same time the air smoothly Vacuum conversion device of the container, characterized in that the exhaust. The container according to claim 2 or 6, wherein a contact preventing protrusion 211 is formed on the bottom of the tightening nut 210 so that the stop plate 232 of the vertical operation bar 230 is caught. Vacuum switching device. The vacuum switching device of the container according to claim 2, wherein the valve support part (200) is fitted with a safety cap (240) to prevent the release of the vacuum pressure valve (20). The vacuum switching device of claim 2 or 9, wherein the stop plate 232 of the vertical operation bar 230 connected to the on-off valve 220 is protruded to the upper portion of the cap 240. . According to claim 1, wherein the vacuum pump 30 is fixed to the suction unit 320 is installed on the lower end of the cylinder 300, the piston 310 is installed, the vacuum pressure valve 20 in the suction unit 320 Press-fit the cap 12 to be inserted and installed, the air discharge valve member 330 is installed in the adsorption part 320 to open and close the vacuum pressure valve 20 during the up and down reciprocating operation of the piston 310 food container (1) A vacuum switching device for a container, wherein the air in the cylinder is sucked into the cylinder 300 and exhausted to the outside. The method of claim 11, wherein the adsorption unit 320 forms a partition 321 in the middle of the inside, the air discharge valve member 330 is installed on the partition 321 and the upper side wall, the flexible suction plate 325 at the bottom Forming the vacuum switching device of the container, characterized in that the lid 12 is pressed and fixed. 13. The vacuum switching device of a container according to claim 11 or 12, wherein the air discharge valve member (330) uses a check valve (330a) (330b). 14. The check valves 330a and 330b of the air discharge valve member 330 form air passage holes 331a and 331b, one end of which is closed at the center thereof. To form the projections 332a, 332b, 333a, 333b at the end of the outer circumferential surface and about the middle portion, respectively, so as not to be inserted into the partition wall 321 and the side wall of the adsorption part 320, and the projections 333a on the intermediate portion side thereof. 333b, the incisions 334a and 334b are formed on the outside so that when the piston 310 is raised, the incision 334a of the check valve 330a is opened to allow air to be sucked into the cylinder 300. When the piston 310 is lowered, the vacuum switching device of the container, characterized in that the incision 334b of the check valve 330b is opened to exhaust the air in the cylinder 300 to the outside. The vacuum pressure valve 20 is mounted on the lid 12 of the food container 1 including the container body 11 and the lid 12, and then a separate vacuum pump 30 is pressed onto the lid 12, but the vacuum pump The vacuum pressure valve 20 is inserted into the 30 and the vacuum pressure valve 20 is actuated to open and close the air in the food container 1 by the opening and closing operation of the vacuum pressure valve 20 to exhaust the food to the outside. A vacuum switching device for a container, characterized in that the inside of the container (1) is switched to a vacuum state, and a vacuum pressure gauge (40) is attached to the lid (12) to measure the vacuum pressure state in the food container (1). The method of claim 15, wherein the pressure valve 20 is fixed to the cap support portion 200 to the cap 12 with a tightening nut 210, the conical inclined surface 203 to be inclined downward on the upper surface of the valve support portion 200. At the same time, the circular return groove 204 is formed at the boundary where the hole 202 and the inclined surface 203 meet, and the conical open / close valve 220 is installed on the inclined surface 203 of the valve support part 200 for the release. To prevent and increase the suction area by forming a curved surface 221 on the upper surface of the on-off valve 220, and fixed the up and down operation bar 230 to the on-off valve 220 to the hole of the valve support portion 200 ( The stop plate 232 of the upper and lower operation bars 230 is formed by opening and closing the exhaust of air by operating the upper and lower sides in 202, and protruding a plurality of adhesion preventing protrusions 211 on the bottom surface of the tightening nut 210. A vacuum switching device for a container, characterized in that to catch and at the same time allow the air to be smoothly vented. The vacuum pump 30 of claim 15, wherein the suction port 320 is fixed to the lower end of the cylinder 300 in which the piston 310 is installed, and then the vacuum pressure valve 20 is inserted into the suction part 320. Insertion is made, and the partition wall 321 is formed in the middle of the inside of the adsorption part 320, and the check valves 330a and 330b of the air discharge member 330 are fixed to the partition wall 321 and the upper sidewall, respectively. When the piston 310 is raised, the check valve 330a is opened to allow air to be sucked into the cylinder 300. When the piston 310 is lowered, the check valve 330b is opened to exhaust the air in the cylinder 300 to the outside. And a flexible suction plate 325 formed at the lower end of the suction part 320 so as to be pressed and fixed to the lid 12. 16. The method of claim 15, wherein the vacuum pressure gauge 40 is fixed to the outer cylinder 400 and the inner cylinder 410 of the transparent plastic material to the cap 12, the air inlet hole 401 on the upper surface of the outer cylinder 400 And a partition wall 412 having an operation hole 413 formed in the inner middle of the inner cylinder 410 to allow the piston bar 421 of the piston 420 to be operated up and down, and the piston 420. The elastic member 430 is elastically installed between the partition walls 412 to lower the piston 420 during the vacuum operation in the food container 1 to measure the position of the scale formed in the inner cylinder 410 and the position of the piston 420. Measuring the vacuum pressure, the vacuum switching device of the container, characterized in that to raise the piston (420) by the restoring force of the elastic member (430) during the atmospheric pressure restore in the food container (1). The method of claim 15, wherein the piston 420 is fixed to the piston plate 422, 423 to the upper and lower ends of the piston bar 421, respectively, the elastic member between the upper piston plate 422 and the partition wall 412 Vacuum conversion device of the container, characterized in that the elastic installation (430). 20. The method according to claim 18 or 19, wherein a plurality of annular grooves (422a, 423a) are formed on the outer circumferential surfaces of the upper and lower piston plates (422, 423) of the piston (420) to slide with the inner cylinder (410). A vacuum switching device for a container, which minimizes friction and prevents leakage of air. 20. The vacuum switching device of claim 19, wherein the lower piston plate (423) of the piston (420) is formed to be disassembled and assembled. 20. The rubber packing 417 is provided in the partition wall 412 of the inner cylinder 410 to be in close contact with the lower piston plate 423 of the piston 420 to prevent leakage. Vacuum conversion device of the container. 17. The vacuum switching device of claim 16, wherein the elastic member (430) uses a coil spring.