JP6291312B2 - Vacuum freshness maintenance device for containers - Google Patents

Description

  The present invention relates to a vacuum freshness holding device for a container which has a function of automatically holding a good vacuum effect for a container for storing food and is easy to operate.

  Patent document 1-patent document 5 are mentioned as a food freshness holding container by a prior art. However, the food freshness holding containers according to the prior arts of Patent Documents 1 to 5 have many drawbacks such as that the sealed state cannot be effectively maintained, the exhaust mechanism cannot be automatically activated, and the operability is poor. . For example, a conventional food freshness holding container has a structure in which a case body is connected to a base body, and an exhaust pump is mounted inside the base body, so that the base body cannot be washed with water. In addition, since the case body is configured to cover the base body, the case body cannot be connected to the base body independently and the negative pressure state cannot be applied to all surfaces.

  In view of the drawbacks of the above-described conventional food freshness holding containers, the inventors of the present invention have previously developed a vacuum freshness holding cover having an automatic exhaust function, and obtained patents of Patent Documents 7 to 9.

  However, since the one-way valve is installed at the bottom of the main body of the vacuum freshness holding cover of Patent Documents 7 to 9, the one-way valve cannot be completely adhered. This is because the exhaust force remains even after the exhausting action of the colloid exhaust pump is completed, so that the adhesion of the thin film becomes incomplete, and after the inside of the upper cover body is evacuated by the exhaust, the pressure is reduced by the atmospheric pressure. This is because the directional valve cannot be compressed to maintain airtightness, and the circular valve membrane receives most of the pressure. For this reason, improvement has been demanded.

US20070034628 US20070056971 US59664255 CN2855365 JP2010-236514 TW554909 TWI322780 CN101414457 US8,113,246

  The objective of this invention is providing the vacuum freshness holding apparatus for containers which can maintain the freshness of the foodstuffs accommodated in the container by solving the fault and deficiency of a prior art.

  In order to solve the above-mentioned problems, a container vacuum freshness maintaining apparatus according to the present invention is an apparatus for evacuating a container for storing food, and includes a connection mechanism connectable to the container, an exhaust / intake mechanism, and an upper lid. including.

  The container used in the present invention has a bottomed cylindrical shape, has an opening at the upper end, and can contain noodles, pasta, biscuits, salmon, shiitake mushrooms, and the like.

The connection mechanism is provided with a thread on the upper edge of the tubular body. The thread is screwed into the upper exhaust / intake mechanism. A connecting cylinder is provided at the center of the connecting mechanism. An air hole is provided in the center of the concave hole formed in the connecting cylinder. The lower end of outer periphery and the upper inner bottom surface of the connection mechanism, the soft resin is provided by integral molding. The soft resin on the outer periphery of the lower end is designed in multiple layers, and the soft resin is integrally molded on the upper side, so that the container connected to the lower side and the exhaust / intake mechanism screwed on the upper side realize good airtightness Can do.

  The exhaust / intake mechanism is a circular tank body, and is installed between the connection mechanism and the upper lid. A battery box is provided on the lower surface, and a motor, an exhaust pump, and a pressure sensing soft resin are provided on the upper surface. A fine movement switch contacts the pressure sensitive soft resin. When the pressure in the container decreases, the pressure sensing soft resin rises, the power source of the fine movement switch is turned on, and the motor is activated to evacuate the container. When the air in the container is exhausted to become a vacuum state, the pressure increases, so the pressure sensing soft resin collapses instantaneously, the fine switch is turned off, and the motor exhaust operation stops.

  The pressure sensing soft resin and the valve membrane of the exhaust / intake mechanism are provided separately and the materials are also different. Due to the characteristic that the pressure-sensitive soft resin is instantly raised or depressed, it is possible to increase the agility of controlling the conduction or shut-off of the power supply of the motor of the exhaust pump.

  The upper lid is provided above the exhaust / intake mechanism. An intake hole and an exhaust hole are provided on the upper lid, and a push-type intake button is installed in the intake hole portion. The air valve is quickly and easily opened, the power is shut off, the intake is performed, The article can be removed or the article can be placed in a container.

  The present invention can automatically maintain a good vacuum effect in the connected container by the components in the exhaust / intake mechanism and the control operation member on the upper lid, and can be easily operated. A vacuum freshness holding device is provided, which can overcome the disadvantages of existing food freshness holding boxes or vacuum freshness holding containers.

It is a disassembled perspective view which shows the main member of one Embodiment of this invention. It is a disassembled perspective view which shows the detailed structure of the main member of one Embodiment of this invention. It is a disassembled perspective view which shows the detailed structure of the main member of one Embodiment of this invention. It is a partially cut perspective view which shows the connection stand of this invention. 1 is a partially cut perspective view showing a state in which a connection base, an exhaust / intake mechanism, and an upper lid of an embodiment of the present invention are combined. It is a disassembled perspective view which shows the member of the exhaust / intake mechanism of one Embodiment of this invention. It is a disassembled perspective view which shows the member of the exhaust / intake mechanism of one Embodiment of this invention. It is a perspective view which shows the pressure sensing soft resin of one Embodiment of this invention. It is sectional drawing which shows the pressure sensing soft resin of one Embodiment of this invention. It is sectional drawing which shows the state in which the pressure sensitive soft resin of one Embodiment of this invention was depressed. It is a partial cutaway perspective view which shows the main member of one Embodiment of this invention. It is a partial cutaway perspective view which shows the main member of one Embodiment of this invention. It is sectional drawing which shows the standby state of the vacuum freshness maintenance apparatus for containers of one Embodiment of this invention. It is sectional drawing which shows the state which operated the vacuum freshness holding apparatus for containers of one Embodiment of this invention.

  As shown in FIG. 1, the container vacuum freshness maintaining apparatus according to an embodiment of the present invention includes a connection mechanism 2, an exhaust / intake mechanism 3, and an upper lid 4 that make the container 1 in a vacuum state.

  As shown in FIGS. 1 to 3, the container 1 is a container having, for example, a bottomed cylinder shape having an opening at the upper end and in which noodles, pasta, biscuits, shiitake mushrooms and the like can be put.

  As shown in FIGS. 1 to 4, the connection mechanism 2 is provided with a thread 21 on the upper end of the tubular body. The screw thread 21 is screwed onto the screw thread 31 on the outer periphery of the upper exhaust / intake mechanism 3. In the center of the connection mechanism 2, a connection cylinder 22 extends downward. An ∞-shaped air hole 221 is provided at the center of the concave hole formed in the connecting cylinder 22. The ∞-shaped air holes 221 can ensure a sufficient air flow rate and prevent clogging of food fragments or debris.

  As shown in FIG. 4, a soft resin is integrally formed on the outer periphery, the upper part, and the bottom of the lower end of the connection mechanism 2, so that a multilayer soft resin ring 23, an inner circle contact soft resin surface 24, and an outer circle contact soft resin are formed. Each surface 25 is provided. The multi-layer soft resin ring 23, the inner circle contact soft resin surface 24, and the outer circle contact soft resin surface 25 can realize good airtightness between the connection mechanism 2 and the exhaust / intake mechanism 3 screwed upward. (See FIG. 5).

  As shown in FIGS. 6 and 7, the exhaust / intake mechanism 3 is a circular tank body installed between the connection mechanism 2 and the upper lid 4. On the outer periphery of the lower surface of the exhaust / intake mechanism 3, a thread 31 that is screwed onto the thread 21 of the connection mechanism 2 is provided. On the lower surface of the exhaust / intake mechanism 3, a symmetric battery box 32, an exhaust hole 33, an intake hole 34, an exhaust / intake member 35, and a fixed frame 36 in which a battery can be mounted are provided. The exhaust / intake mechanism 3 is sealed by an upper lid 4 above, and a sealed space 37 is formed in the tank body of the exhaust / intake mechanism 3.

  Conductive pieces 321 and 322 are fixed on one end of the battery box 32 described above, and the conductive pieces 321 and 322 are electrically connected to the electrode ends of the motor 361. On the other end of the battery box 32, conductive pieces 323 and 324 are fixed.

  As shown in FIG. 7, the above-described exhaust / intake member 35 includes a gasket 351, a bottom plate 352, an exhaust / intake plate 353, and a pressure plate 354. On the exhaust / intake plate 353, a conduction hole 3531, a conduction pipe 3532, an exhaust pipe 3533, and an intake pipe 3534 are provided. A valve membrane 355 is provided between the exhaust / intake plate 353 and the pressure plate 354. Connected soft resin covers 3535 and 3536 are fitted over the exhaust pipe 3533 and the intake pipe 3534, respectively. A one-way valve 3537 is fitted in the conical opening groove 35351 of the connection soft resin cover 3535 above the exhaust pipe 3533. Although the air in the container 1 can be discharged from the conical opening groove 35351 of the connecting soft resin cover 3535 at the end of the exhaust pipe 3533 by the one-way valve 3537, the air cannot enter.

  A motor 361 and a fine movement switch 362 are fixed on the fixed frame 36 described above. The conductive piece 323 at one end of the battery box 32 and one electrode end 3621 in the fine movement switch 362 are electrically connected in a fixed manner, and the tail end of the other conductive piece 324 is connected to the fine movement switch 362. By extending to the lower side of the contact electrode end 3622, the electrode contacts and conducts electricity, or separates and blocks conduction. A switch elastic piece 3623 extends on one side of the fine movement switch 362.

  A colloidal exhaust pump 356 is fitted on the conduction hole 3531 of the exhaust / intake member 35, and a pressure sensing soft resin 357 is fitted on the conduction pipe 3532 of the exhaust / intake member 35, and then fixed by the fixed frame 36. The exhaust / intake member 35 and the fixed frame 36 are screwed and fixed onto the exhaust / intake mechanism 3. Further, the exhaust hole 33 and the exhaust pipe 3533 of the exhaust / intake mechanism 3 communicate with each other, and the intake hole 34, the conduction pipe 3532 and the intake pipe 3534 communicate with each other. Colloid exhaust pump 356 is connected to the eccentric shaft of motor 361. When the motor 361 is started by the upper end of the pressure sensing soft resin 357 coming into contact with the switch elastic piece 3623 of the fine movement switch 362, the colloid exhaust pump 356 is operated and exhausts from below to above.

  As shown in FIGS. 2 to 5, the upper lid 4 seals the exhaust / intake mechanism 3. A concave groove 41 is provided at a portion of the upper lid 4 corresponding to the intake pipe 3534 of the exhaust / intake mechanism 3. A one-way valve 411 is installed in the concave groove 41, and a circular lid 412 is provided on the concave groove 41. An elliptical concave groove 42 is provided in a portion corresponding to the intake pipe 3534 of the exhaust / intake mechanism 3 on the upper lid 4. A cutout 421 and an engagement block 422 are provided at one end of the elliptical concave groove 42, and a swing button 43 having a convex shaft 431 as a fulcrum is provided in the elliptical concave groove 42.

  A pressure plate 432 having a spring 433 is connected to one end portion of the back surface of the swing button 43 described above, and a convex rod 434 is provided to the other end portion of the back surface of the swing button 43. A piston 435 is fitted on the convex rod 434. One end of the piston 435 enters the conical opening groove 35361 of the connecting soft resin cover 3536 above the intake pipe 3534. A slide block 437 having a spring 436 is provided on the front portion of the swing button 43. One end of the slide block 437 extends to the notch 421 and the engagement block 422 at one end of the elliptical groove 42.

  As shown in FIGS. 8 to 10, the pressure sensing soft resin 357 in the exhaust / intake mechanism 3 has the following effects. The pressure sensing soft resin 357 is installed separately from the valve membrane 355 and is made of a different material. As shown in FIGS. 8 to 10, the pressure-sensitive soft resin 357 has four inner edge angles 357A, 357B, 357C, and 357D having the smallest thickness, and when the pressure changes, the pressure-sensitive soft resin 357 instantly rises. Alternatively, when the pressure falls and the pressure reaches a predetermined value, the four inner edge angles 357A, 357B, 357C, and 357D are deformed first and the upper end is instantaneously lowered. Since the descending distance 357E is remarkable, it is possible to perform control more clearly and swiftly to turn on or off the power source of the motor 361 and stop the exhaust of the colloid exhaust pump 356.

  As shown in FIGS. 1 and 11 to 13, food is put in the container 1, and the connection mechanism 2, the exhaust / intake mechanism 3 and the upper lid 4 combined with the members are placed from the lower end of the connection mechanism 2 to the opening at the upper end of the container 1. When inserted and sealed, the swing button 43 is in a horizontal state, the pressure plate 432 is in a raised state, the upper end of the conductive piece 324 is brought into contact with the contact conductive end 3622 of the fine movement switch 362, and the first stage. The power supply is turned on. Further, since the pressure in the sealed space 37 of the exhaust / intake mechanism 3 is small, the pressure sensing soft resin 357 rises and raises the upper switch elastic piece 3623, the fine switch 362 is turned on, and the motor 361 is activated. Then, the exhaust pump 356 is operated. At the same time, the convex rod 434 below the other end of the swing button 43 and the fitted piston 435 are lowered, and the open end of the connection soft resin cover 3536 of the intake pipe 3534 is sealed. As a result, the air in the container 1 is sucked out of the container from the exhaust pipe 3533, and part of the air is sucked into the sealed space 37 of the exhaust / intake mechanism 3 from the intake hole 34 via the conduction hole 3531. . This part of the air also enters the pressure sensing soft resin 357 from the conducting tube 3532, and when the air in the container 1 is sucked out and becomes a vacuum state, the pressure in the sealed space 37 of the exhaust / intake mechanism 3 is reduced. Therefore, the pressure sensing soft resin 357 is depressed instantly, the upper switch elastic piece 3623 is lowered, the power source of the fine movement switch 362 is cut off, and the operation of the motor 361 and the exhaust pump 356 is stopped.

  As time passes, a small amount of gas in the container 1 gradually enters the sealed space 37 of the exhaust / intake mechanism 3, and when the pressure in the sealed space 37 of the exhaust / intake mechanism 3 decreases, the pressure sensing soft resin 357 rises instantly again, raises the upper switch elastic piece 3623, energizes the fine switch 362, activates the motor 361, operates the exhaust pump 356, and performs the above-described exhaust again. By repeating the above-described operation, the inside of the container 1 is kept in a vacuum state, and it is possible to prevent the food or articles in the container 1 from being damp or from being deteriorated in freshness.

  When taking out the food in the container 1, as shown in FIG. 14, one end of the swing button 43 is pressed to move one end of the slide block 437 downward along the notch 421. Engage with the mating block 422 portion. At this time, the pressure plate 432 on the back surface of the swing button 43 descends, presses the conductive piece 324 downward, and moves away from the contact conductive end 3622 of the fine movement switch 362, thereby shutting off the power supply and stopping the operation of the motor 361. At this time, the convex rod 434 below the other end of the swing button 43 and the piston 435 to be fitted are raised, and the open end of the connection soft resin cover 3536 of the intake pipe 3534 is opened, so that external air is taken in. The pressure is released by entering the container 1 from the pipe 3534. Thereby, the connection base 2 can be removed from the opening end of the container 1 together with the exhaust / intake mechanism 3 and the upper lid 4, and the food inside the container 1 can be taken out. When the battery is replaced, the connection base 2 may be rotated and separated from the exhaust / intake mechanism 3.

  To return to the vacuum state again, the slide block 437 on the swing button 43 is swung in the opposite direction, and one end of the slide block 437 is detached from the engagement block 422 and returned to the position of the notch 421. Positioning. At this time, the pressure plate 432 on the back surface of the swing button 43 is lifted by the action of the spring 433, the conductive piece 324 is lifted, and is brought into contact with the contact conductive end 3622 of the fine movement switch 362 to return to the operation state.

  The above description only describes specific embodiments of the present invention, and the scope of protection of the present invention is not limited thereto, and modifications that can be easily considered by those skilled in the art based on the technology disclosed by the present invention. Etc. are included in the protection scope of the present invention. The protection scope of the present invention conforms to the claims.

DESCRIPTION OF SYMBOLS 1 Container 2 Connection mechanism 21 Thread 22 Connection cylinder 221 ∞ shape air hole 23 Multilayer soft resin ring 24 Inner circle contact soft resin surface 25 Outer circle contact soft resin surface 3 Exhaust / intake mechanism 31 Thread 32 Battery box 321 Conductive piece 322 Conductive piece 323 Conductive piece 324 Conductive piece 33 Exhaust hole 34 Intake hole 35 Exhaust / intake member 351 Gasket 352 Bottom plate 353 Exhaust / intake plate 3531 Conductive hole 3532 Conductive pipe 3533 Exhaust pipe 3534 Intake pipe 3535 Connecting soft resin cover 35351 Conical opening Groove 3536 Connection soft resin cover 35361 Conical opening groove 3537 One-way valve 354 Pressure plate 355 Valve membrane 356 Collage exhaust pump 357 Pressure sensing soft resin 357A Inner edge angle 357B Inner edge angle 357C Inner edge angle 357D Inner edge angle 357E Lowering distance 36 Fixed 61 Motor 362 Fine movement switch 3621 Electrode end 3622 Contact electrode end 3623 Switch elastic piece 37 Sealed space 4 Upper lid 41 Concave groove 411 One-way valve 412 Circular lid 42 Elliptic concave groove 421 Notch 422 Engagement block 43 Swing button 431 Convex shaft 432 Pressure plate 433 Spring 434 Convex rod 435 Piston 436 Spring 437 Slide block

Claims (8)

A vacuum freshness maintaining device comprising a connection mechanism connectable to a container, an exhaust / intake mechanism and an upper lid,
The connection mechanism is provided with a screw thread on the upper edge of the tubular body, and the screw thread is screwed onto a screw thread on the outer periphery of the exhaust / intake mechanism. In the center of the concave hole formed in the connecting cylinder, an air hole is provided,
The exhaust / intake mechanism is a circular tank body installed between the connection mechanism and the upper lid, and is screwed onto a thread of the connection mechanism on the outer periphery of the lower surface of the exhaust / intake mechanism. On the lower surface of the exhaust / intake mechanism, there are provided a symmetrical battery box on which a battery can be mounted, an exhaust hole, an intake hole, an exhaust / intake member, and a fixed frame. The mechanism is sealed by the upper lid on the upper side, a sealed space is formed in the tank body of the exhaust / intake mechanism,
A conductive piece is fixed on one end of the battery box, the conductive piece is electrically connected to an electrode end of a motor, and a conductive piece is placed on the other end of the battery box. Is fixed,
The exhaust / intake member includes a gasket, a bottom plate, an exhaust / intake plate, and a pressure plate, and a conductive hole, a conductive pipe, an exhaust pipe, and an intake pipe are provided on the exhaust / intake plate, and the exhaust / intake plate Between the pressure plate and the pressure plate, a connecting soft resin cover is fitted above the exhaust pipe and the intake pipe, respectively, and the conical opening groove of the connecting soft resin cover above the exhaust pipe A one-way valve is fitted therein, and the one-way valve allows the air in the container to be discharged from the conical opening groove of the connecting soft resin cover at the exhaust pipe end, but allows the air to enter. Is not allowed to
The motor and fine movement switch are fixed on the fixed frame, and the fine movement switch has a plurality of electrode ends and a switch elastic piece, and one electrode end of the plurality of electrode ends is one end of the battery box. The other ends of the plurality of electrode ends are extended downward from the tail ends of the other conductive pieces of the battery box, and the switch elastic pieces Is extended to the side of the fine movement switch, the other electrode end of the fine movement switch and the other conductive piece of the battery box are brought into contact with each other to conduct, or separated to cut off conduction.
An exhaust pump is fitted on the conduction hole of the exhaust / intake member, a pressure sensing soft resin is fitted on the conduction pipe of the exhaust / intake member, and then fixed by the fixed frame, and the exhaust / intake member And the fixed frame are screwed and fixed onto the exhaust / intake mechanism, the exhaust hole and the exhaust pipe of the exhaust / intake mechanism communicate with each other, and the intake hole, the conduction pipe, and the intake pipe communicate with each other. The exhaust pump is connected to the eccentric shaft of the motor, and when the motor starts when the upper end of the pressure sensing soft resin contacts the switch elastic piece of the fine movement switch, the exhaust pump operates and Exhaust upward,
The upper lid seals the exhaust / intake mechanism, and a concave groove is provided in a portion of the upper lid corresponding to the intake pipe of the exhaust / intake mechanism, and a one-way valve is installed in the concave groove. A circular lid is provided on the concave groove, and an elliptical concave groove is provided at a portion corresponding to the intake pipe of the exhaust / intake mechanism on the upper lid, at one end of the elliptical concave groove. Is provided with a notch and an engagement block, and a swing button with a convex shaft as a fulcrum is provided in the elliptical groove,
A pressure plate having a spring is connected to one end portion of the back surface of the swing button, and a convex rod is provided at the other end portion of the back surface of the swing button, and a piston is disposed on the convex rod. Is inserted, and one end of the piston enters into the conical opening groove of the connecting soft resin cover above the intake pipe, and a slide block having a spring is provided on the front portion of the swing button. The container vacuum freshness maintaining device, wherein one end portion of the slide block is extended to a notch and an engagement block portion of one end portion of the elliptical groove. A soft resin is integrally molded on the outer periphery of the lower end and the upper surface of the bottom surface of the connection mechanism, so that a multilayer soft resin ring, an inner circle contact soft resin surface, and an outer circle contact soft resin surface are provided, respectively. 2. The airtightness is maintained between the connection mechanism and the exhaust / intake mechanism screwed upward by a resin ring, the inner circle contact soft resin surface and the outer circle contact soft resin surface. 2. A vacuum freshness holding device for a container according to 1.   The pressure sensing soft resin and the valve membrane in the exhaust / intake mechanism are installed separately and are made of different materials, and the pressure sensing soft resin has the smallest inner edge angle and the pressure is When the pressure changes, the pressure-sensitive soft resin rises or sinks instantaneously, and when the pressure reaches a predetermined value, the four inner edge angles are deformed first, the upper end is lowered instantaneously, and the lowering distance is remarkable. 2. The container vacuum freshness maintaining device according to claim 1, wherein the control for turning on or off the power of the motor and stopping the exhaust of the exhaust pump can be performed more clearly and swiftly.   When the swing button of the upper lid has a horizontal shape, the pressure plate exhibits a raised state, the upper end of the conductive piece is brought into contact with the contact conductive end of the fine movement switch, the first stage power supply conduction state, Since the pressure in the sealed space of the exhaust / intake mechanism is small, the pressure sensing soft resin rises and raises the switch elastic piece above, energizes the fine switch, and the motor is activated, At the same time as the exhaust pump is operated, the convex rod below the other end of the swing button and the fitted piston are lowered, and the open end of the connection soft resin cover of the intake pipe is sealed. Thus, the air in the container is sucked out of the container from the exhaust pipe, and part of the air is sucked into the sealed space of the exhaust / intake mechanism from the intake hole through the conduction hole. , A part of the air also enters the pressure sensing soft resin from the conducting tube, and when the air in the container is sucked out to become a vacuum state, the pressure in the sealed space of the exhaust / intake mechanism becomes high. Therefore, the pressure sensing soft resin is instantaneously depressed, the upper switch elastic piece is lowered, the power source of the fine switch is shut off, and the operation of the motor and the exhaust pump is stopped. Item 2. The apparatus for maintaining a vacuum freshness of a container according to Item 1.   When a small amount of gas in the container gradually enters the sealed space of the exhaust / intake mechanism and the pressure in the sealed space of the exhaust / intake mechanism decreases, the pressure sensing soft resin rises instantly again, By raising the switch elastic piece on the upper side, conducting the power source of the fine movement switch, starting the motor, operating the exhaust pump to exhaust again, and repeating the above operation, the inside of the container is The vacuum freshness holding device for a container according to claim 1, wherein a vacuum state is maintained, and the food or article in the container can be prevented from being damp or freshness deteriorated.   When one end portion of the swing button of the upper lid is pressed to move the one end portion of the slide block downward along the notch, and when engaged with the engagement block portion, the back surface of the swing button The pressure plate is lowered, presses the conductive piece downward, and moves away from the contact conductive end of the fine movement switch, thereby shutting off the power supply and stopping the operation of the motor. The projecting rod below the end of the pipe and the piston to be fitted are in a raised state, and the opening end of the connection soft resin cover of the intake pipe opens, so that external air enters the container from the intake pipe. The pressure is released, whereby the connection mechanism together with the exhaust / intake mechanism and the upper lid can be removed from the open end of the container, and the food inside the container can be taken out. Containers for vacuum freshness retaining device according to claim 1.   When the slide block on the swing button of the upper lid is swung in the opposite direction and one end of the slide block is detached from the engagement block and returned to the notch position, the swing block is positioned. The pressure plate on the back of the moving button is lifted by the action of the spring, the conductive piece is lifted, and is brought into operation by returning to the contact conductive end of the fine movement switch. The vacuum freshness holding apparatus for containers as described.   2. The battery according to claim 1, wherein the connection mechanism and the exhaust / intake mechanism are combined by a screw thread, and the battery can be replaced by rotating and separating the connection mechanism from the exhaust / intake mechanism. 2. A vacuum freshness holding device for a container according to 1.

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