Vacuum storage device and refrigerator

Abstract

The present invention provides a vacuum storage device comprising: a vacuum base having a first vacuum port formed thereon; a storage box configured to be detachably secured to the vacuum base, the storage box defining a storage space therein; wherein the storage box has a vacuum port formed therein; and a vacuum pump configured to sequentially extract some or all of the air from the storage space through the first and second vacuum ports. The vacuum storage device of the present invention facilitates access to food in the storage box, enhancing the user experience. The present invention also provides a refrigerator incorporating the vacuum storage device.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration and freezing, and in particular to a vacuum storage device and a refrigerator. Background Art

[0002] As people's living standards improve, consumers' demands for refrigerators are increasing. To improve the freshness of food, refrigerators with vacuum functions have emerged in the prior art and are gaining popularity among consumers. These refrigerators utilize a vacuum pump to evacuate a specific compartment in the refrigerator, which can make it inconvenient to remove and place food. Furthermore, the improper placement of the vacuum preservation components reduces the effective usable volume of the refrigerator. Summary of the Invention

[0003] An object of the present invention is to overcome at least one defect in the prior art and provide a vacuum storage device that is convenient for storing food.

[0004] A further object of the present invention is to provide a vacuum storage device that is easy to evacuate and has a good preservation effect.

[0005] In particular, the present invention provides a vacuum storage device comprising:

[0006] an air extraction base, on which a first air extraction port is formed;

[0007] A storage box is configured to be detachably fixed to the vacuum base, and a storage space is defined in the storage box; wherein an air extraction port is formed on the storage box; and

[0008] The vacuum pump is configured to extract part or all of the air in the storage space through the first air extraction port and the air extraction port in sequence.

[0009] Optionally, the storage box includes an inner box body and an outer box body, wherein

[0010] A storage space is defined within the inner box;

[0011] The outer box body is sleeved on the inner box body with a gap between the outer box body and the inner box body. An air extraction port is formed on the outer box body. The vacuum pump extracts part or all of the gas in the storage space through the first air extraction port, the air extraction port and the gap in sequence.

[0012] Optionally, a first air extraction port is provided on the top wall of the air extraction base;

[0013] The vacuum base also includes: a base vacuum switch, which is arranged at the first vacuum port, and is configured as follows: when the storage box is placed at the first vacuum port, the base vacuum switch moves downward under the gravity of the storage box and forms an vacuum channel with the first vacuum port; when the storage box is removed from the vacuum base, the base vacuum switch moves upward and closes the first vacuum port.

[0014] Optionally, the base exhaust switch includes: a valve body, a first spring and a first sealing ring; wherein

[0015] The valve body has a horizontal portion and a vertical portion extending downward from the horizontal portion. The vertical portion of the valve body is arranged to pass through the first air extraction port, has an outer diameter smaller than an inner diameter of the first air extraction port, and has an annular groove formed at the lower portion.

[0016] The first spring is sleeved outside the vertical portion of the valve body and sandwiched between the horizontal portion of the valve body and the top wall of the air extraction base;

[0017] The first sealing ring is sleeved in the annular groove and has an outer diameter greater than the inner diameter of the first air extraction port.

[0018] Optionally, an air extraction port is provided on the bottom wall of the outer box body;

[0019] The bottom wall of the outer box body extends downward around the air extraction port to form at least one switch protrusion, so that when the storage box is placed in the air extraction base, the switch protrusion contacts the horizontal part of the valve body and pushes the base air extraction switch to move downward.

[0020] Optionally, an air extraction port is provided on the bottom wall of the outer box body;

[0021] The storage box also includes: a box body vacuum switch, which is arranged at the vacuum port, wherein the box body vacuum switch is an elastic part and is configured as follows: when the vacuum pump is turned on, the box body vacuum switch moves downward under suction to form a vacuum channel between the box body and the vacuum port; when the vacuum is completed, the box body vacuum switch recovers its deformation upward and closes the vacuum port.

[0022] Optionally, the box body exhaust switch has a vertical portion, a plurality of first horizontal portions and a second horizontal portion, wherein

[0023] The vertical part of the box body exhaust switch passes through the exhaust port and has an outer diameter smaller than the inner diameter of the exhaust port. A plurality of first horizontal parts are arranged at intervals along its circumference at one end located inside the outer box body, and a second horizontal part is arranged at the end located outside the outer box body.

[0024] Optionally, the storage box further comprises: a cover body configured to be detachably sealed and fixed to the outer box body, thereby opening and closing the storage space;

[0025] The cover body is provided with a press-inflatable structure and / or an air pressure indicating structure. The press-inflatable structure is used to allow external air to enter the storage space, and the air pressure indicating structure is used to show the vacuum state in the storage space.

[0026] Optionally, an accommodating space is defined in the vacuum base, and the vacuum pump is disposed in the accommodating space.

[0027] The present invention also provides a refrigerator having the aforementioned vacuum storage device.

[0028] Optionally, the refrigerator comprises:

[0029] a box body defining a storage compartment therein;

[0030] The door body is pivotally arranged at the front side of the storage compartment and is used to open and close the storage compartment, wherein the vacuum storage device is arranged on the inner side of the door body, and the vacuum base is fixed to the door lining of the door body.

[0031] The vacuum storage device of the present invention is provided with a vacuum base and a storage box, a first vacuum port is formed on the vacuum base, and a vacuum port is formed on the storage box, so that the vacuum component and the device to be vacuumed can be provided separately. The same vacuum base can be applicable to a variety of storage boxes, with a wider range of applications. In addition, the storage box and the vacuum base are detachably fixed, so that food can be easily taken out of the storage box, thereby improving the user experience.

[0032] Furthermore, the storage box of the vacuum storage device of the present invention includes an inner box body and an outer box body. By sleeved the outer box body outside the inner box body with a gap between the outer box body and the inner box body, an air extraction port is formed on the outer box body, so that the vacuum pump extracts part or all of the gas in the storage space through the first air extraction port, the air extraction port, and the gap in sequence, thereby preventing food in the storage space from falling and clogging the air extraction port.

[0033] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0035] Figure 1 Schematic diagram of a refrigerator equipped with a vacuum storage device according to an embodiment of the present invention.

[0036] Figure 2 yes Figure 1 Schematic diagram of the door liner and vacuum storage device of the refrigerator shown.

[0037] Figure 3 2 is a schematic diagram of an exploded decomposition of a vacuum storage device according to an embodiment of the present invention.

[0038] Figure 4 yes Figure 3 Schematic diagram of the vacuum storage device shown.

[0039] Figure 5 yes Figure 3 A schematic cross-sectional view of a vacuum storage device is shown.

[0040] Figure 6 yes Figure 3 Schematic diagram of the vacuum base of the vacuum storage device shown.

[0041] Figure 7 yes Figure 6 Schematic diagram of the exploded view of the vacuum base of the vacuum storage device shown.

[0042] Figure 8 yes Figure 3 The diagram shows an exploded view of some components of a storage box of a vacuum storage device.

[0043] Figure 9 yes Figure 3 Schematic diagram of some components of the cover of the vacuum storage device shown.

[0044] Figure 10 yes Figure 9 The figure shows a cross-sectional view of some parts of the cover of the vacuum storage device.

[0045] Figure 11 yes Figure 3 Schematic diagram of the explosion and decomposition of the cover of the vacuum storage device shown. DETAILED DESCRIPTION

[0046] Figure 1 FIG. 1 is a schematic diagram of a refrigerator 100 having a vacuum storage device 200 according to an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of the door liner 120 and the vacuum storage device 200 of the refrigerator 100 is shown. Figure 3 2 is a schematic diagram of an exploded view of a vacuum storage device 200 according to an embodiment of the present invention. Figure 4 yes Figure 3 A schematic diagram of a vacuum storage device 200 is shown. Figure 5 yes Figure 3 FIG. 2 is a schematic cross-sectional view of a vacuum storage device 200 .

[0047] The embodiment of the present invention proposes a refrigerator 100, which generally may include a cabinet 101, a door 102 and a vacuum storage device 200. The cabinet 101 is defined with at least one storage compartment with an open front side, usually multiple, such as a refrigerator, a freezer, a variable temperature chamber, and the like. The number and function of specific storage compartments can be configured according to pre-determined requirements. The storage temperature of the refrigerator can be 2 to 9°C, or 4 to 7°C; the storage temperature of the freezer can be -22 to -14°C. The variable temperature chamber can be adjusted according to demand to store suitable food, or used as a fresh-keeping storage chamber. In Figure 1In the refrigerator 100 shown, a pivoting door 102 is provided on the front side of the refrigerating chamber, the first drawer 103 is a variable temperature chamber, and the second drawer 104 is a freezer chamber. The storage compartment can be provided with cooling capacity by a compression refrigeration system. The vacuum storage device 200 is provided on the inner side of the door body 102, and the vacuum base 300 is fixed to the door lining 120 of the door body 102. The vacuum storage device 200 can provide a sealed space for precious food ingredients (such as ginseng, sea cucumber, wolfberry, tonic medicinal materials, condiments, etc.), and perform vacuum treatment in the sealed space to reduce oxidation and deterioration and prevent food ingredients from odor contamination. At the same time, since the vacuum storage device 200 is provided on the inner side of the door body 102, it is convenient for users to take it at any time, and there is no need to go to the deep part of the box body 101 to take out and put food ingredients. As Figure 2 As shown, a hanging ear 121 is provided on the inner side of the door lining 120, and a hanging groove 314 is formed on the vacuum base 300 of the vacuum storage device 200. By fitting the hanging groove 314 on the hanging ear 121, the vacuum storage device 200 is provided on the inner side of the door body 102.

[0048] like Figure 3 As shown, the vacuum storage device 200 according to an embodiment of the present invention generally includes: a vacuum base 300 and a storage box 400. A first vacuum port 310 is formed on the vacuum base 300. The storage box 400 is configured to be removably secured to the vacuum base 300, defining a storage space 410 therein; a vacuum port 420 is formed on the storage box 400. A vacuum pump 302 is configured to sequentially extract some or all of the air from the storage space 410 through the first vacuum port 310 and the vacuum port 420. The vacuum storage device 200 of the embodiment of the present invention is provided with a vacuum base 300 and a storage box 400, and a first vacuum port 310 is formed on the vacuum base 300, and a vacuum port 420 is formed on the storage box 400, so that the vacuum component and the device to be vacuumed can be separately provided. The same vacuum base 300 can be applicable to a variety of storage boxes 400, with a wider range of applications, and the storage box 400 is detachably fixed to the vacuum base 300, so that food can be easily stored and taken out of the storage box 400, thereby improving the user experience.

[0049] In some embodiments, a receiving space is defined within the vacuum base 300, and the vacuum pump 302 is disposed within the receiving space. By disposing the vacuum pump 302 within the vacuum base 300, the vacuum components are integrated into one, and the assembly of the vacuum pump 302 is more convenient.

[0050] like Figures 4 and 5As shown, in some embodiments, the storage box 400 of the embodiment of the present invention includes an inner box body 401 and an outer box body 402, wherein a storage space 410 is defined within the inner box body 401; the outer box body 402 is mounted outside the inner box body 401 and has a gap 403 with the inner box body 401, and an exhaust port 420 is formed on the outer box body 402, and the vacuum pump 302 extracts part or all of the gas in the storage space 410 through the first exhaust port 310, the exhaust port 420, and the gap 403 in sequence. The storage box 400 of the embodiment of the present invention includes an inner box body 401 and an outer box body 402. By placing the outer box body 402 outside the inner box body 401 with a gap 403 between the outer box body 402 and the inner box body 401, an air extraction port 420 is formed on the outer box body 402, so that the vacuum pump 302 can extract part or all of the gas in the storage space 410 through the first air extraction port 310, the air extraction port 420, and the gap 403 in sequence, thereby preventing the food in the storage space 410 from falling and blocking the air extraction port 420. Figure 3 As shown, the storage box 400 includes a box body portion 406 and a cover body 500 , and the box body portion 406 includes an inner box body 401 and an outer box body 402 .

[0051] Figure 6 yes Figure 3 FIG. 1 is a schematic diagram of a vacuum base 300 of a vacuum storage device 200 . Figure 7 yes Figure 6 The exploded decomposition diagram of the vacuum base 300 of the vacuum storage device 200 shown. In some embodiments, a first vacuum port 310 is opened on the top wall of the vacuum base 300 of the embodiment of the present invention. The vacuum base 300 also includes: a base vacuum switch 303, which is arranged at the first vacuum port 310 and is configured as follows: when the storage box 400 is placed at the first vacuum port 310, the base vacuum switch 303 moves downward under the action of the gravity of the storage box 400 and forms a vacuum channel with the first vacuum port 310; when the storage box 400 is removed from the vacuum base 300, the base vacuum switch 303 moves upward and closes the first vacuum port 310. As shown Figure 5 and Figure 7 As shown, the air extraction base 300 includes a base body 301, and a first air extraction port 310 is provided on the top wall of the base body 301. Figure 3As shown, a plurality of placement grooves 311 are formed on the base 301, and a first air extraction port 310 is formed in each placement groove 311, corresponding to a storage box 400. The air extraction base 300 of the embodiment of the present invention is configured so that when the storage box 400 is placed at the first air extraction port 310, an air extraction channel is formed between the base air extraction switch 303 and the first air extraction port 310 based on the gravity of the storage box 400. After the storage box 400 is removed, the base air extraction switch 303 moves upward to close the first air extraction port 310, making the opening and closing structure of the first air extraction port 310 of the air extraction base 300 very clever, and the opening and closing of the first air extraction port 310 are both related to the placement of the storage box 400, which can avoid the problem of the first air extraction port 310 being exposed when the storage box 400 is not placed, causing particles and other debris to enter the air extraction base 300, and can maintain the internal cleanliness of the air extraction base 300 for a long time.

[0052] refer to Figures 5 to 7 In some embodiments, the base exhaust switch 303 of the exhaust base 300 of the embodiment of the present invention includes: a valve body 331, a first spring 332 and a first sealing ring 333; wherein the valve body 331 has a horizontal portion 3311 and a vertical portion 3312 extending downward from the horizontal portion 3311, the vertical portion 3312 of the valve body 331 is arranged to pass through the first exhaust port 310, the outer diameter is smaller than the inner diameter of the first exhaust port 310 and an annular groove 3313 is formed at the lower part; the first spring 332 is sleeved on the outside of the vertical portion 3312 of the valve body 331 and clamped between the horizontal portion 3311 of the valve body 331 and the top wall of the exhaust base 300; the first sealing ring 333 is sleeved in the annular groove 3313 and the outer diameter is larger than the inner diameter of the first exhaust port 310. By configuring the base exhaust switch 303 to include a valve body 331, a first spring 332, and a first sealing ring 333, the base exhaust switch 303 is easy to configure and has low cost. When the storage box 400 is placed in the exhaust base 300, the valve body 331 of the base exhaust switch 303 moves downward under the action of the gravity of the storage box 400, compressing the first spring 332 and moving the first sealing ring 333 downward, opening the first exhaust port 310. The outer diameter of the vertical portion 3312 is smaller than the inner diameter of the first exhaust port 310, thereby forming an exhaust channel between the vertical portion 3312 and the first exhaust port 310. When the storage box 400 is removed from the exhaust base 300, the first spring 332 recovers its deformation upward, and the first sealing ring 333 moves upward, blocking the gap between the first exhaust port 310 and the vertical portion 3312, thereby closing the first exhaust port 310.

[0053] like Figure 7As shown, the top wall of the seat body 301 further extends upward outside the first air outlet 310 to form an annular ridge 312, and a plurality of first latching protrusions 313 are arranged around the first air outlet 310 at intervals between the annular ridge 312 and the first air outlet 310, and a latching groove (not numbered in the figure) is defined between adjacent latching protrusions. The upper part of the vertical portion 3312 of the valve body 331 is provided with a plurality of second latching protrusions 3314 at intervals along its circumference, and the second latching protrusions 3314 fit into the latching groove. By providing the annular ridge 312 on the top wall of the seat body 301, the base air exhaust switch 303 can be fitted into the space defined by the annular ridge 312 and the seat body 301, and the second latching protrusion 3314 can be used in conjunction with the latching groove to prevent the base air exhaust switch 303 from shifting. At the same time, referring to Figure 3 and Figure 8 The bottom wall of the outer box body 402 may also be formed with an upwardly protruding protrusion 424 corresponding to the structure of the annular ridge 312. The protrusion 424 cooperates with the annular ridge 312 to allow the storage box 400 to be placed on the vacuum base 300 more accurately and quickly. In addition, a sealing ring 315 is provided outside the annular ridge 312 to ensure that the joint between the outer box body 402 and the vacuum base 300 remains sealed.

[0054] Continue to refer Figure 7 The vacuum base 300 of the embodiment of the present invention further includes: a vacuum box 304, which is arranged in the base body 301 and buckled under the first vacuum port 310. A docking joint 341 is formed on the vacuum box 304, and a second vacuum port 340 is opened on the docking joint 341; the vacuum pump 302 is connected to the docking joint 341 via a vacuum pipe 321. By providing the vacuum box 304, the connection between the vacuum pump 302 and the first vacuum port 310 can be made easier. When the vacuum base 300 has multiple first vacuum ports 310, there are corresponding multiple vacuum boxes 304. For example, the vacuum base 300 has three first vacuum ports 310, which correspond to three vacuum boxes 304. Figure 7 Only the split portion of the multiple exhaust pipes 321 is shown in the figure, which respectively connect the three exhaust boxes 304 and the vacuum pump 302. In addition, a sealing ring 345 can be provided between the top wall of the exhaust box 304 and the lower surface of the top wall of the base 301 to ensure the seal between the exhaust box 304 and the base 301.

[0055] In some embodiments, the bottom wall of the vacuum box 304 of the vacuum base 300 of the present invention is provided with an overpressure vent 342. A second spring 343 and a sealing gasket 344 are also provided within the vacuum box 304. The sealing gasket 344 is positioned at the overpressure vent 342, with one end of the second spring 343 resting against the inner side of the top wall of the base 301 and the other end resting against the sealing gasket 344. The vacuum storage device 200 of the present invention can be configured for timed vacuuming, i.e., vacuuming for a set period of time at regular intervals. However, the vacuuming time of the vacuum storage device 200 is affected by many factors, such as the volume of food contained within the storage space 410, gas temperature, and the order in which the vacuum is drawn. This can lead to over-vacuuming. By providing the overpressure vent 342 on the bottom wall of the vacuum box 304, the various components and structures of the vacuum storage device 200 are protected, the air pressure is stabilized, and the excessive negative pressure encountered during vacuuming of the storage box 400 is avoided. Specifically, when the air pressure inside the vacuum box 304 falls below the rated pressure, the second spring 343, under the influence of external atmospheric pressure, moves upward, along with the sealing gasket 344, opening the overpressure relief port 342. This allows the interior of the vacuum box 304 to communicate with the outside air, preventing the pressure inside the vacuum box 304 from decreasing and stabilizing at the rated pressure. This prevents the storage box 400 from experiencing excessive negative pressure during vacuuming. Thus, even if the vacuum storage device 200 utilizes timed vacuuming, there is no need to worry about problems such as over-vacuuming. Furthermore, this overpressure relief structure requires minimal space, is low-cost, and offers a high cost-effectiveness ratio. Furthermore, to limit the position of the second spring 343, a positioning post 316 extends downward from the inner side of the top wall of the base 301, corresponding to the position of the second spring 343.

[0056] The vacuum base 300 of the embodiment of the present invention may further include an elastic shock-absorbing seat 322 disposed within the base body 301 and spaced apart from the vacuum box 304. The elastic shock-absorbing seat 322 has a receiving cavity 323, and the vacuum pump 302 is disposed in the receiving cavity 323. The provision of the elastic shock-absorbing seat 322 can reduce the noise of the vacuum pump 302.

[0057] As previously mentioned, the vacuum storage device 200 of the embodiment of the present invention can be configured for timed vacuuming. Each vacuum base 300 is provided with a vacuum pump 302, but multiple storage boxes 400 can be provided correspondingly. The vacuum storage device 200 of the embodiment of the present invention can first determine the number of storage boxes 400 on the vacuum base 300, and then determine the total vacuuming time based on the number of storage boxes 400 and the vacuuming time of each storage box 400.

[0058] In other embodiments, Figure 3As shown, one or more magnetic switches (not shown) are provided on the top wall of the base 301; magnets 405 are provided on the bottom wall of the outer box 402 corresponding to the magnetic switches; the vacuum base 300 further includes a control module 305 disposed within the base 301 and configured to control the vacuum pump 302 based on paired signals from the magnetic switches and the magnets 405. For example, the control module 305 can be configured to control the vacuum pump 302 to be turned on for a period of time after detecting a paired signal from the magnetic switches and the magnets 405.

[0059] In some other embodiments, Figure 7 As shown, the vacuum base 300 further includes a sensing module 306 and a control module 305. The sensing module 306 is disposed on the front wall of the base 301 and is configured to receive user operations. The control module 305 is disposed within the base 301 and is configured to control the vacuum pump 302 based on signals from the sensing module 306. The sensing module 306 can be, for example, a plate-like structure that rests against the front wall of the base 301. A sensing button 360 can also be disposed in the center of the front wall of the base 301. For example, the control module 305 can be configured to turn the vacuum pump 302 on or off upon sensing a user touch.

[0060] Figure 8 yes Figure 3 An exploded view of some components of the storage box 400 of the vacuum storage device 200 is shown. In some embodiments, the outer body 402 of the storage box 400 of the present invention has an air extraction port 420 defined on its bottom wall. The bottom wall of the outer body 402 also extends downwardly around the air extraction port 420 to form at least one switch protrusion 421. When the storage box 400 is placed within the vacuum base 300, the switch protrusion 421 contacts the horizontal portion 3311 of the valve body 331 and pushes the base vacuum switch 303 downward. Forming the switch protrusion 421 around the air extraction port 420 on the bottom wall of the outer body 402 simplifies the mating structure of the base vacuum switch 303 and the storage box 400, ensuring that the first vacuum port 310 opens when the storage box 400 is placed within the vacuum base 300.

[0061] like Figure 8As shown, in some embodiments, an air extraction port 420 is provided on the bottom wall of the outer box body 402 of the storage box 400 according to the embodiment of the present invention. The storage box 400 further includes a box body air extraction switch 404, which is disposed at the air extraction port 420. The box body air extraction switch 404 is an elastic member and is configured such that: when the vacuum pump 302 is turned on, the box body air extraction switch 404 is moved downward by suction to form an air extraction channel between the box body air extraction switch 404 and the air extraction port 420; when air extraction is completed, the box body air extraction switch 404 recovers its deformation upward and closes the air extraction port 420. By setting the box body vacuum switch 404, the vacuum port 420 of the storage box 400 can remain sealed after the vacuum is completed. The user can continue to place the storage box 400 on the vacuum base 300, or place the storage box 400 in other spaces of the refrigerator 100, or place the storage box 400 outside the refrigerator 100. The storage box 400 can still maintain a vacuum state, so that the vacuum storage device 200 has multiple applications.

[0062] In some embodiments, the box body exhaust switch 404 of the storage box 400 of the present invention comprises a vertical portion 441, multiple first horizontal portions 442, and a second horizontal portion 443. The vertical portion 441 of the box body exhaust switch 404 extends through the exhaust port 420 and has an outer diameter smaller than the inner diameter of the exhaust port 420. The end located inside the outer box body 402 is provided with multiple first horizontal portions 442 spaced apart along its circumference, while the end located outside the outer box body 402 is provided with a second horizontal portion 443. When the storage box 400 is placed within the exhaust base 300, the vacuum pump 302 is turned on, causing the box body exhaust switch 404 to move downward as a whole, forming an exhaust channel between the vertical portion 441 of the box body exhaust switch 404 and the exhaust port 420, thereby opening the exhaust port 420. When exhaust is complete, the negative pressure within the exhaust base 300 disappears, causing the negative pressure within the storage box 400 to cause the second horizontal portion 443 to cling tightly to the outer box body 402, thereby providing a seal.

[0063] Continue to refer Figure 8 The outer box body 402 and the inner box body 401 are detachable. A protrusion 411 is formed on the outer side of the upper portion of the inner box body 401 to prevent the inner box body 401 from shaking within the outer box body 402. At the same time, the bottom wall of the outer box body 402 protrudes upward in the area adjacent to the air extraction port 420, forming a protruding area 424. Correspondingly, a protruding area 412 is formed on the bottom wall of the inner box body 401. By forming the protruding area 424 on the outer box body 402, the box body air extraction switch 404 can be accommodated within the protruding area 424 without protruding from the outer box body 402. This allows the bottom wall of the outer box body 402 to remain roughly horizontal, facilitating the placement of the storage box 400 and also allowing the storage box 400 to be more quickly mated with the air extraction base 300. Furthermore, a groove 422 is formed on the outer box body 402 for accommodating the magnet 405.

[0064] Figure 9yes Figure 3 FIG. 1 is a schematic diagram of some components of the cover 500 of the vacuum storage device 200 . Figure 10 yes Figure 9 FIG. 1 is a schematic cross-sectional view of some components of the cover 500 of the vacuum storage device 200 . Figure 11 yes Figure 3 The exploded view of the lid 500 of the vacuum storage device 200 is shown. In some embodiments, the storage box 400 of the present invention further includes: a lid 500 configured to be removably sealed and fixed to the outer box 402 to open and close the storage space 410; wherein the lid 500 is provided with a press-inflatable structure and / or an air pressure indicator structure. The press-inflatable structure is used to allow external air to enter the storage space 410, and the air pressure indicator structure is used to indicate the vacuum state of the storage space 410.

[0065] like Figure 3 As shown, the cover 500 of the embodiment of the present invention includes an upper cover 501 and a lower cover 502. The lower cover 502 is fixed to the upper cover 501. Figure 11 As shown, the lower cover 502 is provided with a plurality of engaging protrusions 527 and a plurality of fixing posts 528. The upper cover 501 is provided with a plurality of hooks (not shown) and a plurality of fixing holes. The hooks fit into the engaging protrusions, and the fixing posts fit into the fixing holes, thereby securing the lower cover 502 to the upper cover 501. Furthermore, an annular groove 529 is formed around the lower portion of the lower cover 502. A sealing ring 507 is provided in the annular groove 529 to ensure a seal between the cover 500 and the outer box body 402.

[0066] In some embodiments, the push-to-fill inflation structure primarily comprises an inflation valve 503 and a pressing unit. The lower cover 502 is provided with an air inlet 520 extending vertically therethrough. The inflation valve 503 is positioned at the air inlet 520 and is configured to open and close the air inlet 520. The pressing unit is positioned between the upper cover 501 and the inflation valve 503 and is configured to press the pressing unit to move the inflation valve 503 away from the air inlet 520, thereby opening the air inlet 520 and allowing external air to enter the storage space 410.

[0067] like Figure 10 As shown, the lower cover 502 is further provided with a first mounting opening 521. The inflation valve 503 has a mounting portion 531 and a shielding portion 532. The mounting portion 531 is inserted into the first mounting opening 521 to fix the inflation valve 503 to the lower cover 502. The shielding portion 532 is configured to abut against the air inlet 520 to close the air inlet 520 and to move away from the air inlet 520 to open the air inlet 520. Figure 11As shown, an inflation protrusion 523 is formed on the lower cover 502, a first mounting port 521 is opened in the center of the inflation protrusion 523, and an air inlet hole 520 is opened on the edge; the mounting portion 531 of the inflation valve 503 is inserted into the first mounting port 521 and is clamped and fixed to the lower surface of the lower cover 502; the shielding portion 532 covers the upper surface of the air inlet hole 520.

[0068] The pressing unit includes a first movable member 541 and a second movable member 542. The first movable member 541 is configured to be movable up and down in the lower cover 502, and has a pressing portion 5411 and a main pushing portion 5412, wherein the pressing portion 5411 is arranged close to the upper cover 501, and the main pushing portion 5412 is arranged on the side of the pressing portion 5411 close to the inflation valve 503. The second movable member 542 is arranged below the main pushing portion 5412 and is on one side of the inflation valve 503. The pressing unit is configured to move the main pushing portion 5412 up and down by pressing the pressing portion 5411 of the first movable member 541, thereby pushing the second movable member 542 to move left and right to approach and push the inflation valve 503 away from the air inlet 520. Figure 11 As shown, a support column 525 is provided on the lower cover 502. A rotating shaft 5413 is formed on the side of the pressing portion 5411 of the first movable member 541 away from the main pushing portion 5412. An arc-shaped groove is formed at the top of the support column 525, and the rotating shaft 5413 fits in the arc-shaped groove. The main pushing portion 5412 is rod-shaped.

[0069] like Figure 10 As shown, the second movable member 542 includes a first auxiliary pushing portion 5421 and a second auxiliary pushing portion 5422. The first auxiliary pushing portion 5421 has an inclined surface structure located below the main pushing portion 5412. The second auxiliary pushing portion 5422 is disposed below the first auxiliary pushing portion 5421, and the end of the second auxiliary pushing portion 5422 near the inflation valve 503 has a sharp head 5423. The second movable member 542 uses the sharp head 5423 to lift the inflation valve 503 upward, thereby opening the air inlet 520. By providing the first movable member 541 and the second movable member 542, a user's upward and downward pressing action can be converted into a left and right movement of the second movable member 542. When the sharp head 5423 of the second movable member 542 approaches the shielding portion 532 of the inflation valve 503, it lifts the corresponding area of the shielding portion 532 upward, thereby opening the air inlet 520.

[0070] The pressing unit further includes a pressing spring 543 and a pulling spring 544. The pressing spring 543 is interposed between the pressing portion 5411 and the lower cover 502. The pulling spring 544 is disposed on the side of the second movable member 542 away from the inflation valve 503. One end of the pulling spring 544 is connected to the second movable member 542, and the other end is connected to the lower cover 502. The pulling spring 544 is used to pull the second movable member 542 away from the inflation valve 503 after inflation is complete. Figure 11As shown, a positioning post 526 is provided on the lower cover 502 , and a pressing spring 543 is sleeved outside the positioning post 526 .

[0071] The pressing unit further includes a guide member 545, which is disposed in the lower cover 502 and has a guide groove 5451 along the left-right direction. The second auxiliary pusher 5422 moves left and right in the guide groove 5451. One end of the traction spring 544 is connected to the second auxiliary pusher 5422, and the other end is connected to the guide member 545. Figure 11 As shown, a fixed edge 5452 is formed at one end of the guide member 545 away from the inflation valve 503, a fixed edge 5424 is formed at one end of the second auxiliary pushing portion 5422 away from the inflation valve 503, one end of the traction spring 544 is connected to the fixed edge 5452, and the other end is connected to the fixed edge 5424.

[0072] In some embodiments, the air pressure indication structure is mainly composed of an air pressure indication column 505 and a mounting member 551. A second mounting opening 522 is provided on the lower cover 502, which runs through the lower cover in the vertical direction. The cover body 500 of the embodiment of the present invention also includes: an air pressure indication column 505, which is arranged at the second mounting opening 522. The air pressure indication column 505 is a hollow structure with an opening at the lower portion, and is a flexible deformation structure at least in the top area thereof, so that the vacuum state in the storage space 410 is indicated based on the degree of deformation of the flexible deformation structure at the top of the air pressure indication column 505. Specifically, a third mounting opening 510 is provided on the upper cover 501, which runs through the upper cover in the vertical direction, wherein the projection of the third mounting opening 510 on the horizontal plane covers the second mounting opening 522, so that the top area of the air pressure indication column 505 is exposed outside the upper cover 501. The mounting member 551 comprises a bottom wall portion 5511 and a side wall portion 5512. The bottom wall portion 5511 is provided with a plurality of air holes 5510 in the vertical direction. The side wall portion 5512 is inserted through the opening at the bottom of the air pressure indicator column 505 and fixed in the air pressure indicator column 505. When no vacuum is applied, the flexible deformation structure of the air pressure indicator column 505 is naturally stretched out. Figure 10 As shown, it protrudes from the upper surface of the upper cover 501. When vacuuming, the flexible deformation structure of the air pressure indicator column 505 gradually shrinks and moves downward. When the upper surface of the air pressure indicator column 505 is flush with the upper surface of the upper cover 501, it indicates that the vacuuming is completed. After the storage box 400 has been placed for a period of time, if the vacuum degree in the storage space 410 drops to a certain level, the flexible deformation structure of the air pressure indicator column 505 will stretch upward again. Therefore, the degree of deformation of the flexible deformation structure of the air pressure indicator column 505 can indicate the vacuum state in the storage space 410. Figure 11 As shown, a support frame 524 for cooperating with the air pressure indicator column 505 may be provided on the lower cover 502 .

[0073] The cover 500 of the embodiment of the present invention further includes: a pressing top plate 552, which is arranged at the third mounting port 510, with an integrated air pressure indicator column 505 on one side and the other side located above the pressing unit for the user to press. The pressing top plate 552 and the air pressure indicator column 505 can be an integral elastic member. Figure 11 As shown, a sealing ring 553 is provided between the pressing top plate 552 and the third installation opening 510 .

[0074] The cover 500 of the embodiment of the present invention further includes at least one pair of movable buckle ears 506. The upper portion of each movable buckle ear 506 is rotatably connected to the upper cover 501 or the lower cover 502, and the inner side surface of the lower portion is provided with a fixing protrusion 561. The upper portion of the outer box body 402 is provided with a fixing protrusion 423. The fixing protrusion 423 of the outer box body 402 is engaged with the fixing protrusion 561 of the movable buckle ear 506 in a one-to-one correspondence to achieve the fixing of the cover 500 and the box body. Figure 11 As shown, a rotating shaft 562 is formed on the top of the movable buckle ear 506, and a receiving groove 511 is formed on both sides of the upper cover 501. A rotating shaft hole 512 is formed on both sides of the receiving groove 511, and the rotating shaft 562 is fitted into the rotating shaft hole 512.

[0075] In the description of this embodiment, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the positions or relationships of the vacuum storage device 200, as shown in the attached figure. Figure 3 The orientation or position relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0076] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A vacuum storage device, characterized in that include: an air extraction base, on which a first air extraction port is formed; A storage box is configured to be detachably fixed to the air extraction base, and a storage space is defined in the storage box; wherein an air extraction port is formed on the storage box; and a vacuum pump configured to extract part or all of the air in the storage space through the first air extraction port and the second air extraction port in sequence; The first air extraction port is provided on the top wall of the air extraction base; The vacuum base further includes: a base vacuum switch, which is disposed at the first vacuum port and is configured such that: when the storage box is placed at the first vacuum port, the base vacuum switch moves downward under the action of gravity of the storage box and forms a vacuum channel with the first vacuum port; when the storage box is removed from the vacuum base, the base vacuum switch moves upward and closes the first vacuum port; The base exhaust switch includes: a valve body, a first spring and a first sealing ring; The valve body has a horizontal portion and a vertical portion extending downward from the horizontal portion, the vertical portion of the valve body is arranged to pass through the first air extraction port, has an outer diameter smaller than an inner diameter of the first air extraction port, and has an annular groove formed at the lower portion; The first spring is sleeved outside the vertical portion of the valve body and sandwiched between the horizontal portion of the valve body and the top wall of the air pumping base; The first sealing ring is sleeved in the annular groove and has an outer diameter larger than the inner diameter of the first air extraction port; The storage box comprises a cover body for opening and closing the storage space.

2. The vacuum storage device according to claim 1, wherein: The storage box includes an inner box body and an outer box body, wherein The storage space is defined within the inner box; The outer box body is sleeved on the inner box body and has a gap between it and the inner box body. The air extraction port is formed on the outer box body, and the vacuum pump extracts part or all of the gas in the storage space through the first air extraction port, the air extraction port, and the gap in sequence.

3. The vacuum storage device according to claim 2, characterized in that: The air extraction port is provided on the bottom wall of the outer box body; The bottom wall of the outer box body extends downward around the air extraction port to form at least one switch protrusion, so that when the storage box is placed in the air extraction base, the switch protrusion contacts the horizontal part of the valve body and pushes the base air extraction switch to move downward.

4. The vacuum storage device according to claim 2, characterized in that: The air extraction port is provided on the bottom wall of the outer box body; The storage box also includes: a box body vacuum switch, which is arranged at the vacuum port, wherein the box body vacuum switch is an elastic member and is configured as follows: when the vacuum pump is turned on, the box body vacuum switch moves downward under suction to form a vacuum channel between the box body and the vacuum port; when the vacuuming is completed, the box body vacuum switch recovers its deformation upward to close the vacuum port.

5. The vacuum storage device according to claim 2, wherein: The cover is configured to be detachably sealed and fixed to the outer box body, thereby opening and closing the storage space; wherein The cover body is provided with a press-inflatable structure and / or an air pressure indicating structure. The press-inflatable structure is used to allow external air to enter the storage space, and the air pressure indicating structure is used to show the vacuum state in the storage space.

6. The vacuum storage device according to claim 1, characterized in that: An accommodating space is defined in the vacuum base, and the vacuum pump is disposed in the accommodating space.

7. A refrigerator, characterized in that: A vacuum storage device according to any one of claims 1 to 6.

8. The refrigerator according to claim 7, characterized in that include: a box body defining a storage compartment therein; The door body is pivotally arranged on the front side of the storage compartment for opening and closing the storage compartment, wherein the vacuum storage device is arranged on the inner side of the door body, and the vacuum base is fixed to the door lining of the door body.

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