CN219346998U

CN219346998U - Vacuum storage device and refrigerator

Info

Publication number: CN219346998U
Application number: CN202121307960.4U
Authority: CN
Inventors: 吕鹏; 张�浩; 刘宏晖; 徐同
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Special Refrigeration Electric Appliance Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Special Refrigeration Electric Appliance Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2023-07-14
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a vacuum storage device, comprising: the air extraction base is provided with a first air extraction opening; the storage box is configured to be detachably fixed with the air extraction base, and a storage space is defined in the storage box; wherein the storage box is provided with an extraction opening; and a vacuum pump configured to sequentially pump out part or all of the air in the storage space through the first pumping hole and the pumping hole. The vacuum storage device can conveniently take food materials from the storage box, and improves the use experience of users. The utility model also provides a refrigerator with the vacuum storage device.

Description

Vacuum storage device and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration and freezing, in particular to a vacuum storage device and a refrigerator.

Background

Along with the improvement of the living standard of people, the demands of consumers on the refrigerator are also higher, and in order to improve the fresh-keeping performance of the refrigerator, the refrigerator with the vacuumizing function appears in the prior art and is favored by the consumers. The principle of the refrigerator is that a certain compartment of the refrigerator is vacuumized by utilizing a vacuum pump, so that the problem that food materials are inconvenient to take and put exists, and the effective use volume of the refrigerator is reduced due to unreasonable component arrangement of a vacuum fresh-keeping part.

Disclosure of Invention

An object of the present utility model is to overcome at least one of the drawbacks of the prior art and to provide a vacuum storage device for convenient storage of food materials.

A further object of the present utility model is to provide a vacuum storage device which is easy to evacuate and has a good fresh-keeping effect.

In particular, the present utility model provides a vacuum storage device comprising:

the air extraction base is provided with a first air extraction opening;

the storage box is configured to be detachably fixed with the air extraction base, and a storage space is defined in the storage box; wherein the storage box is provided with an extraction opening; and

the vacuum pump is configured to pump out part or all of air in the storage space through the first pumping hole and the pumping hole in sequence.

Optionally, the storage box comprises an inner box body and an outer box body, wherein

The inner box body is internally provided with a storage space;

the outer box body is sleeved outside the inner box body and is provided with a gap with the inner box body, an extraction opening is formed in the outer box body, and the vacuum pump sequentially extracts part or all of gas in the storage space through the first extraction opening, the extraction opening and the gap.

Optionally, a first extraction opening is formed in the top wall of the extraction base;

the base of bleeding still includes: the base air extraction switch is arranged at the first air extraction opening and is configured to: the storage box is placed at the first extraction opening, and the base extraction switch moves downwards under the action of gravity of the storage box and forms an extraction channel with the first extraction opening; the storage box is removed from the air extraction base, and the base air extraction switch moves upwards to seal the first air extraction opening.

Optionally, the base bleed switch includes: the valve comprises a valve body, a first spring and a first sealing ring; wherein the method comprises the steps of

The valve body is provided with a horizontal part and a vertical part extending downwards from the horizontal part, the vertical part of the valve body penetrates through the first air extraction opening, the outer diameter of the vertical part is smaller than the inner diameter of the first air extraction opening, and an annular groove is formed at the lower part of the vertical part;

the first spring is sleeved outside the vertical part of the valve body and is clamped between the horizontal part of the valve body and the top wall of the air extraction base;

the first sealing ring is sleeved in the annular groove, and the outer diameter of the first sealing ring is larger than the inner diameter of the first extraction opening.

Optionally, an air extraction opening is formed in the bottom wall of the outer box body;

the bottom wall of the outer box body is also provided with at least one switch bulge in a downward extending mode around the air extraction opening, so that when the storage box is placed in the air extraction base, the switch bulge abuts against the horizontal portion of the valve body and pushes the base air extraction switch to move downwards.

the storage box further comprises: the box body air extraction switch is arranged at the air extraction opening, is an elastic piece and is configured to: the vacuum pump is started, and the box body air extraction switch moves downwards under suction force to form an air extraction channel with the air extraction opening; and after the air extraction is completed, the box body air extraction switch upwards recovers deformation and seals the air extraction opening.

Optionally, the box air extraction switch has a vertical portion, a plurality of first horizontal portions and a plurality of second horizontal portions, wherein

The vertical portion of box body air extraction switch runs through the internal diameter that the extraction opening set up and external diameter is less than the extraction opening, and its one end that is located the inside of outer box body sets up a plurality of first horizontal portions along its circumference interval, and the one end that is located the outside of outer box body sets up the second horizontal portion.

Optionally, the storage box further comprises: the cover body is configured to be detachably sealed and fixed with the outer box body so as to open and close the storage space; wherein the method comprises the steps of

The cover body is provided with a pressing and inflating structure and/or an air pressure indicating structure, the pressing and inflating structure is used for enabling external air to enter the storage space, and the air pressure indicating structure is used for showing the vacuum state in the storage space.

Optionally, an accommodating space is defined in the air extraction base, and the vacuum pump is arranged in the accommodating space.

The utility model also provides a refrigerator with the vacuum storage device.

Optionally, the refrigerator includes:

a box body, in which a storage compartment is defined;

the door body is pivotally arranged at the front side of the storage compartment and used for opening and closing the storage compartment, wherein the vacuum storage device is arranged at the inner side of the door body, and the air extraction base is fixed with a door liner of the door body.

According to the vacuum storage device, the air extraction base and the storage box are arranged, the first air extraction opening is formed in the air extraction base, and the air extraction opening is formed in the storage box, so that the air extraction component and the device to be extracted can be arranged in a separated mode, the same air extraction base can be applicable to various storage boxes, the application range is wider, the storage boxes and the air extraction base are detachably fixed, food can be conveniently taken into the storage boxes, and the use experience of users is improved.

Further, the storage box of the vacuum storage device comprises an inner box body and an outer box body, wherein the outer box body is sleeved outside the inner box body, a gap is formed between the outer box body and the inner box body, and an extraction opening is formed in the outer box body, so that a vacuum pump sequentially extracts part or all of gas in a storage space through the first extraction opening, the extraction opening and the gap, and the phenomenon that food materials in the storage space fall down to block the extraction opening is avoided.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic view of a refrigerator having a vacuum storage device according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a door liner and a vacuum storage device of the refrigerator shown in fig. 1.

Fig. 3 is an exploded schematic view of a vacuum storage device in accordance with one embodiment of the present utility model.

Fig. 4 is a schematic view of the vacuum storage device shown in fig. 3.

Fig. 5 is a schematic cross-sectional view of the vacuum storage device of fig. 3.

FIG. 6 is a schematic view of the suction base of the vacuum storage device of FIG. 3.

FIG. 7 is an exploded schematic view of the suction base of the vacuum storage device of FIG. 6.

Fig. 8 is an exploded schematic view of part of the components of the storage box of the vacuum storage device shown in fig. 3.

Fig. 9 is a schematic view of a portion of the components of the cover of the vacuum storage device of fig. 3.

Fig. 10 is a schematic cross-sectional view of a portion of the cover of the vacuum storage device of fig. 9.

Fig. 11 is an exploded view of a cover of the vacuum storage device of fig. 3.

Detailed Description

Fig. 1 is a schematic view of a refrigerator 100 having a vacuum storage device 200 according to one embodiment of the present utility model. Fig. 2 is a schematic view of a door liner 120 and a vacuum storage device 200 of the refrigerator 100 shown in fig. 1. Fig. 3 is an exploded schematic view of a vacuum storage device 200 in accordance with one embodiment of the present utility model. Fig. 4 is a schematic view of the vacuum storage device 200 shown in fig. 3. Fig. 5 is a schematic cross-sectional view of the vacuum storage device 200 shown in fig. 3.

Embodiments of the present utility model provide a refrigerator 100 that may generally include a cabinet 101, a door 102, and a vacuum storage apparatus 200. The cabinet 101 defines at least one storage compartment, typically a plurality of compartments, such as a refrigerator compartment, a freezer compartment, a temperature change compartment, etc., open at a front side. The number and the functions of the specific storage compartments can be configured according to the preset requirements, and the preservation temperature of the refrigerating compartment can be 2-9 ℃ or 4-7 ℃; the storage temperature of the freezing chamber can be-22 to-14 ℃. The temperature changing chamber can be adjusted according to the requirements to store proper foods or be used as a fresh-keeping storage chamber. In the refrigerator 100 shown in fig. 1, a pivoting door body 102 is provided at a front side of a refrigerating compartment, a first drawer 103 is a temperature changing compartment, and a second drawer 104 is a freezing compartment. The storage compartment may be provided with cooling by a compression refrigeration system. The vacuum storage device 200 is disposed inside the door 102, and the air extraction base 300 is fixed to the door liner 120 of the door 102. The vacuum storage device 200 can provide a sealed space for precious food materials (such as ginseng, sea cucumber, medlar, tonic materials, seasonings, etc.), and can reduce oxidative deterioration and prevent food material from being tainted by vacuumizing in the sealed space. Meanwhile, the vacuum storage device 200 is arranged on the inner side of the door body 102, so that a user can conveniently take the food at any time without going deep into the box body 101 to take and put the food. As shown in fig. 2, the hanging lugs 121 are provided on the inner side of the door liner 120, the hanging grooves 314 are formed on the air extraction base 300 of the vacuum storage device 200, and the vacuum storage device 200 is provided on the inner side of the door body 102 by matching the hanging grooves 314 with the hanging lugs 121.

As shown in fig. 3, the vacuum storage device 200 according to the embodiment of the present utility model generally includes: a suction base 300 and a storage box 400. The pumping base 300 is formed with a first pumping port 310. The storage box 400 is configured to be detachably fixed with the air extraction base 300, and a storage space 410 is defined in the storage box 400; wherein the storage case 400 is formed with an extraction opening 420. The vacuum pump 302 is configured to sequentially pump out a portion or all of the air in the storage space 410 through the first pumping port 310 and the pumping port 420. According to the vacuum storage device 200 provided by the embodiment of the utility model, the air extraction base 300 and the storage box 400 are arranged, the first air extraction opening 310 is formed on the air extraction base 300, and the air extraction opening 420 is formed on the storage box 400, so that the air extraction component and the device to be extracted can be arranged separately, the same air extraction base 300 can be suitable for various storage boxes 400, the application range is wider, and the storage boxes 400 and the air extraction base 300 are detachably fixed, so that food can be conveniently taken into the storage boxes 400, and the use experience of users is improved.

In some embodiments, the suction base 300 defines a receiving space therein, and the vacuum pump 302 is disposed within the receiving space. By disposing the vacuum pump 302 within the pumping base 300, pumping components are integrated, and assembly of the vacuum pump 302 is facilitated.

As shown in fig. 4 to 5, in some embodiments, the storage box 400 according to the embodiments of the present utility model includes an inner box 401 and an outer box 402, wherein the inner box 401 defines a storage space 410 therein; the outer box body 402 is sleeved outside the inner box body 401, a gap 403 is formed between the outer box body 402 and the inner box body 401, an air extraction opening 420 is formed in the outer box body 402, and the vacuum pump 302 sequentially extracts part or all of the air in the storage space 410 through the first air extraction opening 310, the air extraction opening 420 and the gap 403. The storage box 400 according to the embodiment of the utility model includes an inner box body 401 and an outer box body 402, and by sleeving the outer box body 402 outside the inner box body 401 and forming a gap 403 between the outer box body and the inner box body 401, an air extraction opening 420 is formed on the outer box body 402, so that the vacuum pump 302 sequentially extracts part or all of the air in the storage space 410 through the first air extraction opening 310, the air extraction opening 420 and the gap 403, and the phenomenon that food materials in the storage space 410 fall down to block the air extraction opening 420 is avoided. As shown in fig. 3, the storage box 400 includes a box portion 406 and a cover 500, the box portion 406 including an inner box 401 and an outer box 402.

Fig. 6 is a schematic view of the suction base 300 of the vacuum storage device 200 of fig. 3. Fig. 7 is an exploded schematic view of the suction base 300 of the vacuum storage device 200 of fig. 6. In some embodiments, the top wall of the pumping base 300 of the embodiment of the present utility model is provided with a first pumping hole 310. The suction base 300 further comprises: the base air extraction switch 303 is disposed at the first air extraction opening 310, and is configured to: the storage box 400 is placed at the first air extraction opening 310, and the base air extraction switch 303 moves downwards under the gravity action of the storage box 400 and forms an air extraction channel with the first air extraction opening 310; the storage box 400 is removed from the suction base 300, and the base suction switch 303 moves upward and closes the first suction opening 310. As shown in fig. 5 and 7, the air extraction base 300 includes a base 301, and a first air extraction opening 310 is formed on a top wall of the base 301. As shown in fig. 3, a plurality of placement grooves 311 are formed on the base 301, and a first air extraction opening 310 is formed in each placement groove 311, and a storage box 400 is correspondingly disposed. According to the air extraction base 300 of the embodiment of the utility model, when the storage box 400 is placed at the first air extraction opening 310, an air extraction channel is formed between the air extraction base and the first air extraction opening 310 based on the gravity action of the storage box 400, and after the storage box 400 is removed, the base air extraction switch 303 moves upwards to seal the first air extraction opening 310, so that the opening and sealing structure of the first air extraction opening 310 of the air extraction base 300 is ingenious, the opening and sealing of the first air extraction opening 310 are associated with the placement of the storage box 400, the problem that sundries such as particles enter the air extraction base 300 due to the exposure of the first air extraction opening 310 when the storage box 400 is not placed can be avoided, and the internal cleanliness of the air extraction base 300 can be maintained for a long time.

Referring to fig. 5 to 7, in some embodiments, the base suction switch 303 of the suction base 300 of the embodiment of the present utility model includes: a valve body 331, a first spring 332, and a first seal 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 provided through the first suction port 310, the outer diameter is smaller than the inner diameter of the first suction port 310, and an annular groove 3313 is formed at the lower portion; the first spring 332 is sleeved outside the vertical part 3312 of the valve body 331 and is clamped between the horizontal part 3311 of the valve body 331 and the top wall of the air extraction base 300; the first sealing ring 333 is sleeved in the annular groove 3313, and the outer diameter of the first sealing ring is larger than the inner diameter of the first air extraction opening 310. By providing the base suction switch 303 to include the valve body 331, the first spring 332, and the first seal ring 333, the structure of the base suction switch 303 is easy to configure and low in cost. When the storage box 400 is placed in the air extraction base 300, when the valve body 331 of the base air extraction switch 303 moves downwards under the action of gravity of the storage box 400, the first spring 332 is compressed, the first sealing ring 333 moves downwards, the first air extraction opening 310 is opened, and the outer diameter of the vertical part 3312 is smaller than the inner diameter of the first air extraction opening 310 so that an air extraction channel is formed between the vertical part 3312 and the first air extraction opening 310; when the storage box 400 is moved out of the air extraction base 300, the first spring 332 is deformed upward, the first sealing ring 333 moves upward, and the gap between the first air extraction opening 310 and the vertical portion 3312 is sealed, so as to close the first air extraction opening 310.

As shown in fig. 7, the top wall of the base 301 extends upwards beyond the first air extraction opening 310 to form an annular rib 312, a plurality of first clamping protrusions 313 are arranged between the annular rib 312 and the first air extraction opening 310 at intervals around the first air extraction opening 310, and clamping grooves (not numbered) are defined between adjacent clamping protrusions. The upper part of the vertical part 3312 of the valve body 331 is provided with a plurality of second catching projections 3314 at intervals along a circumference thereof, and the second catching projections 3314 are fitted in the catching grooves. By providing the annular rib 312 on the top wall of the base 301, the base suction switch 303 can be fitted in the space defined by the annular rib 312 and the base 301, and displacement of the base suction switch 303 can be avoided by the second click protrusion 3314 and the click groove. Meanwhile, referring to fig. 3 and 8, a protrusion area 424 protruding upwards may be further formed at the bottom wall of the outer case 402 corresponding to the structure of the annular rib 312, and the protrusion area 424 and the annular rib 312 may be partially matched to enable the storage case 400 to be more accurately and rapidly placed on the suction base 300. In addition, a sealing ring 315 is provided outside the annular ridge 312 to maintain a seal at the interface of the outer casing 402 and the pumping base 300.

With continued reference to FIG. 7, the suction base 300 of an embodiment of the present utility model further includes: the air extraction box 304 is arranged in the seat 301 and buckled below the first air extraction opening 310, an abutment 341 is formed on the air extraction box 304, and a second air extraction opening 340 is formed on the abutment 341; vacuum pump 302 is connected to docking head 341 via suction line 321. By providing the pumping box 304, the connection between the vacuum pump 302 and the first pumping port 310 can be made easier. When the pumping base 300 has a plurality of first pumping holes 310, a plurality of pumping boxes 304 are correspondingly arranged. For example, the pumping base 300 has three first pumping ports 310, corresponding to three pumping boxes 304, and only a four-way structure of the split part of the pumping lines 321 is shown in fig. 7, and the three pumping boxes 304 and the vacuum pump 302 are connected respectively. In addition, a sealing ring 345 may be provided between the top wall of the suction box 304 and the lower surface of the top wall of the base 301 to ensure sealing between the suction box 304 and the base 301.

In some embodiments, the bottom wall of the air extraction box 304 of the air extraction base 300 of the embodiment of the utility model is provided with an overpressure air release opening 342; a second spring 343 and a sealing gasket 344 are further arranged in the air extraction box 304, wherein the sealing gasket 344 is arranged at the overpressure air release opening 342, one end of the second spring 343 abuts against the inner side of the top wall of the seat body 301, and the other end abuts against the sealing gasket 344. The vacuum storage device 200 of the present embodiment may be configured to pump air at regular intervals, i.e., for a certain period of time. However, there are many factors affecting the pumping time of the vacuum storage device 200, such as the volume of food material in the storage space 410, the gas temperature, the pumping sequence, etc., and excessive pumping may occur. By providing the overpressure air release opening 342 on the bottom wall of the air extraction box 304, the structure and components of each part of the vacuum storage device 200 can be protected, the air pressure is controlled to be stable, and the problem of overlarge negative pressure during air extraction of the storage box 400 is avoided. Specifically, when the air pressure in the air extraction box 304 is less than the rated air pressure, the second spring 343 will move upward with the sealing pad 344 under the external air pressure, and the overpressure air release opening 342 is opened, so that the air extraction box 304 is communicated with the external air, the air pressure in the air extraction box 304 is no longer reduced and stabilized at the rated air pressure, and the problem of excessive negative air extraction pressure in the storage box 400 is avoided. Therefore, even if the vacuum storage device 200 adopts the timing air suction, the problems of excessive air suction and the like do not need to be worried about, and the overpressure air discharge structure is small in required space, low in cost and high in cost performance. In addition, in order to limit the second spring 343, a positioning post 316 is further formed on the inner side of the top wall of the base 301 at a position corresponding to the second spring 343.

The pumping base 300 of the embodiment of the present utility model may further include: the elastic shock-absorbing seat 322 is arranged in the seat 301 and is spaced from the air extraction box 304, the elastic shock-absorbing seat 322 is provided with a containing cavity 323, and the vacuum pump 302 is arranged at the containing cavity 323. Noise of the vacuum pump 302 can be reduced by providing the elastic shock mount 322.

As described above, the vacuum storage device 200 of the present embodiment may be configured to pump air periodically. Each air extraction base 300 is provided with one vacuum pump 302, but a plurality of storage boxes 400 can be correspondingly arranged, and the vacuum storage device 200 of the embodiment of the utility model can confirm the number of the storage boxes 400 on the air extraction base 300 first, and then determine the total air extraction duration based on the number of the storage boxes 400 and the air extraction time of each storage box 400.

In other embodiments, as shown in fig. 3, one or more magnetically sensitive switches (not shown) are provided on the top wall of the base 301; the bottom wall of the outer box body 402 is provided with a magnet 405 corresponding to the magnetically sensitive switch; the suction base 300 further comprises: the control module 305 is disposed in the base 301 and configured to control the vacuum pump 302 to switch on and off based on the pairing signal of the magnetically sensitive switch and the magnet 405. For example, the control module 305 may be configured to control the vacuum pump 302 to turn on for a period of time after detecting the pairing signal of the magnetically sensitive switch and the magnet 405.

In still other embodiments, as shown in FIG. 7, the suction base 300 further comprises: the sensing module 306 and the control module 305, the sensing module 306 is disposed at the front wall of the base 301, for receiving user operations. The control module 305 is disposed in the base 301 and configured to control the vacuum pump 302 to switch on and off based on the signal of the sensing module 306. The sensing module 306 may be, for example, a plate-like structure that is abutted against the front wall of the housing 301, and the center of the front wall of the housing 301 may be further provided with a sensing knob 360. For example, the control module 305 may be configured to turn the vacuum pump 302 on or off after sensing a touch action by the user.

Fig. 8 is an exploded schematic view of part of the components of the magazine 400 of the vacuum storage device 200 shown in fig. 3. In some embodiments, the bottom wall of the outer case 402 of the storage case 400 according to the embodiments of the present utility model is provided with an air extraction opening 420; the bottom wall of the outer case 402 further extends downward around the air extraction opening 420 to form at least one switch protrusion 421, so that when the storage case 400 is placed in the air extraction base 300, the switch protrusion 421 abuts against the horizontal portion 3311 of the valve body 331 and pushes the base air extraction switch 303 to move downward. By forming the opening and closing protrusion 421 on the bottom wall of the outer case 402 around the air extraction opening 420, the matching structure of the base air extraction switch 303 and the storage case 400 can be simplified, and the first air extraction opening 310 is opened after the storage case 400 is placed in the air extraction base 300.

As shown in fig. 8, in some embodiments, an air extraction opening 420 is formed on the bottom wall of the outer case 402 of the storage case 400 according to the embodiments of the present utility model. The storage case 400 further includes: the box body air extraction switch 404 is disposed at the air extraction opening 420, wherein the box body air extraction switch 404 is an elastic member and is configured to: the vacuum pump 302 is turned on, and the box body air suction switch 404 moves downwards under suction force to form an air suction channel with the air suction opening 420; when the air extraction is completed, the box air extraction switch 404 recovers the deformation upwards and closes the air extraction opening 420. Through setting up box body air extraction switch 404, can make after the air extraction is accomplished, the extraction opening 420 of storing box 400 can keep sealed, and the user can continue to place storing box 400 on air extraction base 300, also can put into other spaces of refrigerator 100 with storing box 400, or place storing box 400 in the refrigerator 100 outside, and storing box 400 still can keep vacuum state for vacuum storing device 200 has multiple application mode.

In some embodiments, the box body air extraction switch 404 of the storage box 400 according to the embodiment of the present utility model has a vertical portion 441, a plurality of first horizontal portions 442 and a second horizontal portion 443, wherein the vertical portion 441 of the box body air extraction switch 404 is disposed through the air extraction opening 420 and has an outer diameter smaller than an inner diameter of the air extraction opening 420, one end of the box body air extraction switch located inside the outer box body 402 is disposed with a plurality of first horizontal portions 442 along a circumferential direction thereof at intervals, and one end of the box body air extraction switch located outside the outer box body 402 is disposed with the second horizontal portion 443. When the storage box 400 is placed in the air extraction base 300, the vacuum pump 302 is turned on, the box body air extraction switch 404 integrally moves downwards, an air extraction channel is formed between the vertical part 441 of the box body air extraction switch 404 and the air extraction opening 420, and the air extraction opening 420 is opened; when the air extraction is completed, the negative pressure in the air extraction base 300 disappears, so that the negative pressure in the storage box 400 can make the second horizontal portion 443 tightly fit on the outer box 402, thereby playing a sealing role.

With continued reference to fig. 8, the outer and

inner shells

402, 401 are of removable construction. A protrusion 411 is formed at the upper outer side of the inner case 401 so that the inner case 401 does not shake at the outer case 402. At the same time, the bottom wall of the outer case 402 is upwardly protruded at a region adjacent to the pumping port 420 to form a protruded region 424. Correspondingly, the bottom wall of the inner case 401 forms a protruding region 412. By forming the raised area 424 on the outer shell 402, the shell air extraction switch 404 may be received within the raised area 424 without protruding from the outer shell 402, such that the bottom wall of the outer shell 402 remains substantially horizontal, facilitating placement of the storage box 400, and also enabling faster mating of the storage box 400 to the air extraction base 300. In addition, a groove 422 is formed in the outer case 402 for placing the magnet 405.

Fig. 9 is a schematic diagram of a portion of the components of the cover 500 of the vacuum storage device 200 of fig. 3. Fig. 10 is a schematic cross-sectional view of a portion of the cover 500 of the vacuum storage device 200 of fig. 9. Fig. 11 is an exploded schematic view of the cover 500 of the vacuum storage device 200 of fig. 3. In some embodiments, the storage case 400 of the present embodiment further includes: a cover 500 configured to be detachably sealed and fixed with the outer case 402, thereby opening and closing the storage space 410; wherein the cover 500 is provided with a pressing and inflating structure for allowing external air to enter the storage space 410 and/or an air pressure indicating structure for indicating a vacuum state in the storage space 410.

As shown in fig. 3, the cover 500 of the embodiment of the present utility model includes an upper cover 501 and a lower cover 502. The lower cover 502 is fixed to the upper cover 501. As shown in fig. 11, a plurality of clamping protrusions 527 and a plurality of fixing columns 528 are disposed on the lower cover 502, a plurality of hooks (not shown in the drawings) and a plurality of fixing holes are disposed on the upper cover 501 in a matched manner, the hooks are matched in the clamping protrusions, and the fixing columns are matched in the fixing holes, so that the lower cover 502 and the upper cover 501 are fixed. In addition, a ring groove 529 is formed at a circumference of the lower portion of the lower cover 502, and a sealing ring 507 is provided at the ring groove 529 to ensure sealing between the cover 500 and the outer case 402.

In some embodiments, the pressing inflation structure is mainly composed of the inflation valve 503 and the pressing unit. The lower cover 502 is provided with an air inlet 520 penetrating therethrough in the up-down direction. The air charging valve 503 is disposed at the air inlet 520 for opening and closing the air inlet 520. The pressing unit is disposed between the upper cover 501 and the air charge valve 503, and is configured to press the pressing unit to move the air charge valve 503 away from the air intake hole 520 to open the air intake hole 520 so that external air is introduced into the storage space 410.

As shown in fig. 10, the lower cover 502 is further provided with a first mounting opening 521. The air charging 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 air charging valve 503 with the lower cover 502, and the shielding portion 532 is configured to abut against the air intake hole 520 to close the air intake hole 520 and away from the air intake hole 520 to open the air intake hole 520. As shown in fig. 11, an air-filling protrusion 523 is formed on the lower cover 502, a first mounting opening 521 is formed in the center of the air-filling protrusion 523, and an air inlet 520 is formed at the edge; the mounting part 531 of the inflation valve 503 is inserted into the first mounting opening 521 and is clamped and fixed with the lower surface of the lower cover 502; the shielding portion 532 covers the upper surface of the intake hole 520.

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 within the lower cover 502, and has a pressing portion 5411 and a main pushing portion 5412, wherein the pressing portion 5411 is disposed near the upper cover 501, and the main pushing portion 5412 is disposed on a side of the pressing portion 5411 near the inflation valve 503. The second movable member 542 is disposed below the main pushing portion 5412 and at one side of the air charging valve 503, and 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 so as to push the second movable member 542 to move left and right to approach and push the air charging valve 503 away from the air intake hole 520. As shown in fig. 11, a support column 525 is provided on the lower cover 502, a rotating shaft 5413 is formed on a 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 a top end of the support column 525, and the rotating shaft 5413 is fitted in the arc-shaped groove. The main pushing portion 5412 has a rod shape.

As shown in fig. 10, the second movable member 542 has a first auxiliary pushing portion 5421 and a second auxiliary pushing portion 5422, wherein the first auxiliary pushing portion 5421 has a slope structure which is located below the main pushing portion 5412; the second auxiliary pushing portion 5422 is disposed below the first auxiliary pushing portion 5421, and an end of the second auxiliary pushing portion 5422, which is close to the air charging valve 503, has a sharp head 5423, and the second movable member 542 lifts the air charging valve 503 up to open the air intake hole 520 by using the sharp head 5423. By providing the first movable member 541 and the second movable member 542, the user's up-down pressing motion can be converted into the left-right motion of the second movable member 542, and after the sharp head 5423 of the second movable member 542 approaches the shielding portion 532 of the air charging valve 503, the corresponding area of the shielding portion 532 is lifted upward, thereby opening the air intake hole 520.

The pressing unit further includes a pressing spring 543 and a traction spring 544. The pressing spring 543 is sandwiched between the pressing portion 5411 and the lower cover 502. The traction spring 544 is disposed on one side of the second movable member 542 away from the inflation valve 503, and one end of the traction spring 544 is connected to the second movable member 542, and the other end is connected to the lower cover 502, for pulling the second movable member 542 away from the inflation valve 503 after inflation is completed. As shown in fig. 11, the lower cover 502 is provided with a positioning column 526, and the pressing spring 543 is sleeved outside the positioning column 526.

The pressing unit further includes a guide 545 provided in the lower cover 502 and having a guide groove 5451 in a left-right direction, and a second auxiliary pushing part 5422 is moved left-right in cooperation in the guide groove 5451, and one end of the traction spring 544 is connected to the second auxiliary pushing part 5422 and the other end is connected to the guide 545. As shown in fig. 11, a fixing rib 5452 is formed at an end of the guide member 545 remote from the air charge valve 503, a fixing rib 5424 is formed at an end of the second auxiliary pushing portion 5422 remote from the air charge valve 503, and one end of the traction spring 544 is connected to the fixing rib 5452 and the other end is connected to the fixing rib 5424.

In some embodiments, the air pressure indicating structure is comprised primarily of air pressure indicating post 505 and mount 551. The lower cover 502 is provided with a second mounting opening 522 penetrating therethrough in the up-down direction. The cover 500 of the embodiment of the present utility model further includes: the air pressure indicating column 505 is disposed at the second mounting opening 522, and the air pressure indicating column 505 is a hollow structure having an opening at a lower portion thereof and is a flexible deformation structure at least at a top region thereof, such that a vacuum state in the storage space 410 is shown based on a deformation degree of the flexible deformation structure at the top of the air pressure indicating column 505. Specifically, the upper cover 501 is provided with a third mounting opening 510 penetrating in the up-down direction thereof, 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 indicating column 505 is exposed outside the upper cover 501. The mounting member 551 has a bottom wall portion 5511 and a side wall portion 5512, the bottom wall portion 5511 is provided with a plurality of ventilation holes 5510 extending in the vertical direction, and the side wall portion 5512 is inserted and fixed into the air pressure indicating column 505 from an opening in the lower portion of the air pressure indicating column 505. In the case where no vacuum is applied, the flexible deformation structure of the air pressure indicating cylinder 505 is naturally stretched out, as shown in fig. 10, to protrude from the upper surface of the upper cover 501. The flexible deformation structure of the air pressure indicating column 505 gradually contracts and moves downward when the vacuum is applied, and the vacuum is applied when the upper surface of the air pressure indicating column 505 is flush with the upper surface of the upper cover 501. After the storage box 400 is placed for a period of time, if the vacuum degree in the storage space 410 is reduced to a certain degree, the flexible deformation structure of the air pressure indicating column 505 is stretched upwards again, and thus the vacuum state in the storage space 410 can be shown based on the deformation degree of the flexible deformation structure of the air pressure indicating column 505. As shown in fig. 11, a support bracket 524 for cooperating with the air pressure indicating cylinder 505 may be provided on the lower cover 502.

The cover 500 of the embodiment of the present utility model further includes: the pressing top plate 552 is disposed at the third mounting opening 510, one side of which is integrated with the air pressure indicating column 505, and the other side of which is located above the pressing unit for being pressed by a user. The pressing top plate 552 and the air pressure indicating cylinder 505 may be an integral elastic member. As shown in fig. 11, a seal 553 is provided between the pressing top plate 552 and the third mounting port 510.

The cover 500 of the present embodiment further includes at least one pair of movable lugs 506, wherein an upper portion of each movable lug 506 is rotatably connected to the upper cover 501 or the lower cover 502, and a fixing protrusion 561 is disposed on an inner side surface of the lower portion. The upper portion of outer box body 402 is provided with fixed protruding 423, and fixed protruding 423 and the fixed protruding 561 of movable button lug 506 of outer box body 402 one-to-one joint is in order to realize lid 500 and box body part's fixed. As shown in fig. 11, a rotating shaft 562 is formed at the top of the movable button lug 506, receiving grooves 511 are formed at both sides of the upper cover 501, rotating shaft holes 512 are formed at both sides of the receiving grooves 511, and the rotating shaft 562 is fitted in the rotating shaft holes 512.

In the description of the present embodiment, it is to be understood that, for the vacuum storage device 200, the terms "upper", "lower", "front", "rear", "left", "right", etc. refer to the orientation or positional relationship shown in fig. 3. While this is done solely for the purpose of describing the utility model and simplifying the description, it is not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims

1. A vacuum storage device, comprising:

the air extraction base is provided with a first air extraction opening;

and the vacuum pump is configured to sequentially pump out part or all of air in the storage space through the first pumping hole and the pumping hole.

2. The vacuum storage device as claimed in claim 1, wherein,

the storage box comprises an inner box body and an outer box body, wherein

The storage space is defined in the inner box body;

the outer box body is sleeved outside the inner box body and is provided with a gap with the inner box body, the outer box body is provided with the air extraction opening, and the vacuum pump sequentially extracts part or all of gas in the storage space through the first air extraction opening, the air extraction opening and the gap.

3. A vacuum storage device as claimed in claim 2, wherein,

the top wall of the air extraction base is provided with the first air extraction opening;

the air extraction base further comprises: the base air extraction switch is arranged at the first air extraction opening and is configured to: the storage box is placed at the first extraction opening, and the base extraction switch moves downwards under the gravity action of the storage box and forms an extraction channel with the first extraction opening; and removing the storage box from the air extraction base, and moving the base air extraction switch upwards to seal the first air extraction opening.

4. A vacuum storage device as claimed in claim 3, wherein,

the base bleeder switch includes: the valve comprises a valve body, a first spring and a first sealing ring; wherein the method comprises the steps of

The valve body is provided with a horizontal part and a vertical part extending downwards from the horizontal part, the vertical part of the valve body penetrates through the first extraction opening, the outer diameter of the vertical part is smaller than the inner diameter of the first extraction opening, and an annular groove is formed in the lower part of the vertical part;

5. The vacuum storage device as claimed in claim 4, wherein,

the bottom wall of the outer box body is provided with the air extraction opening;

the bottom wall of the outer box body surrounds the extraction opening and is also downwards extended to form at least one switch bulge, so that when the storage box is placed in the extraction base, the switch bulge props against the horizontal part of the valve body and pushes the base extraction switch to downwards move.

6. A vacuum storage device as claimed in claim 2, wherein,

the storage box further comprises: the box body air extraction switch is arranged at the air extraction opening, is an elastic piece and is configured to: the vacuum pump is started, and the box body air extraction switch moves downwards under suction force to form an air extraction channel with the air extraction opening; and after the air extraction is completed, the box body air extraction switch upwards recovers deformation to seal the air extraction opening.

7. A vacuum storage device as claimed in claim 2, wherein,

the storage box further comprises: the cover body is configured to be detachably sealed and fixed with the outer box body so as to open and close the storage space; wherein the method comprises the steps of

8. The vacuum storage device as claimed in claim 1, wherein,

an accommodating space is defined in the air extraction base, and the vacuum pump is arranged in the accommodating space.

9. A refrigerator characterized by having a vacuum storage device according to any one of claims 1-8.

10. The refrigerator of claim 9, comprising:

a box body, in which a storage compartment is defined;

the door body is arranged at the front side of the storage compartment in a pivotable manner and is used for opening and closing the storage compartment, the vacuum storage device is arranged at the inner side of the door body, and the air extraction base is fixed with a door liner of the door body.