CN219346975U - Lid, storing box, vacuum storing device and refrigerator - Google Patents

Abstract

The utility model provides a box cover, which is used for sealing a storage space of a storage box and comprises the following components: an upper cover; the lower cover is fixed with the upper cover, an inflatable bulge is formed on the lower cover, the inflatable bulge is of a hollow structure with an opening at the lower part, and an air inlet hole is formed on the side wall surface of the inflatable bulge; and a pressing movable piece configured to be movable up and down in the lower cover, having a main body portion and a shielding portion, wherein the shielding portion extends from the main body portion toward one side of the air intake hole and shields the air intake hole, so that the shielding portion is driven to move downward by pressing the main body portion to open the air intake hole to allow outside air to enter the storage space. The box cover has a simple pressure relief structure and is easy to operate. The utility model also provides a storage box with the box cover, a vacuum storage device and a refrigerator.

Description

Lid, storing box, vacuum storing device and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration and freezing devices, in particular to a box cover, a storage box, 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 refrigerator is realized by utilizing a vacuum pump to vacuumize a certain compartment of the refrigerator, and the problem that food materials are inconvenient to take and place exists. The pressure release structure of the existing vacuum preservation box is complex, the operation is difficult, and the user experience is poor.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provides a box cover with convenient pressure relief.

A further object of the present utility model is to provide a vacuum storage device that facilitates storage of food materials.

In particular, the present utility model provides a box cover for sealing a storage space of a storage box, comprising:

an upper cover;

the lower cover is fixed with the upper cover, an inflatable bulge is formed on the lower cover, the inflatable bulge is of a hollow structure with an opening at the lower part, and an air inlet hole is formed on the side wall surface of the inflatable bulge; and

the pressing movable piece is configured to move up and down in the lower cover and is provided with a main body part and a shielding part, wherein the shielding part extends from the main body part towards one side of the air inlet hole and shields the air inlet hole, so that the shielding part is driven to move downwards by pressing the main body part to open the air inlet hole so as to enable external air to enter the storage space.

Optionally, a sealing sleeve is arranged on the periphery of a section of the shielding part, which shields the air inlet hole.

Optionally, the box cover further includes: the pressing spring is clamped between the main body part and the lower cover.

Optionally, a positioning column is formed on the lower cover, and the pressing spring is sleeved outside the positioning column.

Optionally, the inflatable protrusions and the main body part are arranged on the lower cover at intervals along the length direction of the box cover, and the air inlet holes are formed along the width direction of the box cover; wherein the method comprises the steps of

Two support columns are arranged on the lower cover at intervals along the width direction of the box cover, and arc-shaped grooves are formed at the top ends of each support column;

one end of the main body part far away from the shielding part is respectively provided with a rotating shaft at two sides along the width direction of the box cover, and the rotating shafts are matched in the arc-shaped grooves.

Optionally, a first mounting opening penetrating through the lower cover in the up-down direction is formed in the lower cover, a second mounting opening penetrating through the upper cover in the up-down direction is formed in the upper cover, and projection of the second mounting opening on a horizontal plane covers the first mounting opening;

the box cover also comprises: the pressing top plate is arranged at the second mounting opening, one side of the pressing top plate is integrated with the air pressure indicating column, and the other side of the pressing top plate is positioned above the main body part for pressing; the air pressure indicating column is of a hollow structure with an opening at the lower part and is of a flexible deformation structure at least in the top area, and the air pressure indicating column is arranged corresponding to the first mounting opening so that the vacuum state in the storage space is shown based on the deformation degree of the top of the air pressure indicating column.

Optionally, the main body part is provided with a plug hole along the up-down direction;

the position of the pressing top plate corresponding to the plug hole is provided with a clamping hook which is matched in the plug hole.

The utility model also provides a storage box, which comprises:

the box body is internally provided with a storage space; and

the box cover is configured to be detachably sealed and fixed with the box body, so that the storage space is opened and closed.

The utility model also provides a vacuum storage device, which comprises:

the vacuum pump is arranged in the air suction base, and a first air suction opening is formed in the air suction base; and

the storage box is provided with the air extraction opening, and the air extraction opening of the storage box is communicated with the first air extraction opening so that the vacuum pump can extract part or all of air in the storage space through the first air extraction opening and the air extraction opening in sequence.

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

According to the box cover, the inflatable bulge with the air inlet hole is formed on the side wall surface of the lower cover, the pressing movable piece capable of moving up and down is arranged in the lower cover, the pressing movable piece is configured to be provided with the main body part and the shielding part, the shielding part is utilized to shield the air inlet hole, so that the main body part is pressed to drive the shielding part to move downwards to open the air inlet hole to enable external air to enter the storage space, the pressure release structure of the box cover is simple and easy to operate, the box cover is used for sealing the storage space of the storage box, particularly the vacuum preservation storage box, a user can simply, conveniently and quickly realize pressure release of the storage box, the storage box is opened to take and put food materials, and the use experience of the user is improved.

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 storage case having a case cover according to one embodiment of the present utility model.

Fig. 2 is a schematic view of part of the lid shown in fig. 1.

Fig. 3 is an exploded view of part of the lid shown in fig. 2.

Fig. 4 is a schematic cross-sectional view of the lower cover of the box cover shown in fig. 2.

Fig. 5 is a partial cross-sectional schematic view of the lid of fig. 1.

Fig. 6 is a schematic cross-sectional view of the case of the storage case of fig. 1.

Fig. 7 is an exploded schematic view of a vacuum storage device having the storage box shown in fig. 1.

FIG. 8 is a schematic cross-sectional view of the suction base of the vacuum storage device of FIG. 7.

Fig. 9 is a schematic view of a door liner of a refrigerator having the vacuum storage device of fig. 7.

Detailed Description

Fig. 1 is a schematic view of a storage case 400 having a case cover 500 according to an embodiment of the present utility model. Fig. 2 is a schematic view of part of the cap 500 shown in fig. 1. Fig. 3 is an exploded view of part of the components of the cap 500 shown in fig. 2. Fig. 4 is a schematic cross-sectional view of the lower cover 502 of the box cover 500 shown in fig. 2. Fig. 5 is a partial cross-sectional schematic view of the cap 500 shown in fig. 1.

The box cover 500 according to the embodiment of the present utility model is used for sealing the storage space 410 of the storage box 400, and includes: an upper cover 501, a lower cover 502, and a pressing movable member 541. The lower cover 502 is fixed to the upper cover 501. The lower cap 502 is formed with an air-filled protrusion 523. The air-filling protrusion 523 has a hollow structure with an opening at the lower portion, and an air-filling hole 520 is formed at the side wall surface thereof. The pressing movable member 541 is configured to be movable up and down within the lower cover 502. The pressing movable member 541 has a main body portion 5411 and a shielding portion 5412, wherein the shielding portion 5412 extends from the main body portion 5411 toward the air intake hole 520 side and shields the air intake hole 520, so that the outside air is taken into the storage space 410 by pressing the main body portion 5411 to drive the shielding portion 5412 to move downward to open the air intake hole 520. According to the box cover 500 of the embodiment of the utility model, the air charging protrusion 523 with the air inlet holes 520 formed on the side wall surface is formed on the lower cover 502, the pressing movable piece 541 capable of moving up and down is arranged in the lower cover 502, the pressing movable piece 541 is configured to be provided with the main body portion 5411 and the shielding portion 5412, the air inlet holes 520 are shielded by the shielding portion 5412, so that the shielding portion 5412 is driven to move downwards by pressing the main body portion 5411 to open the air inlet holes 520 to enable external air to enter the storage space 410, the pressure releasing structure of the box cover 500 is simple and easy to operate, the box cover 500 is used for sealing the storage space 410 of the storage box 400, particularly the vacuum preservation storage box 400, a user can simply, conveniently and quickly realize pressure releasing of the storage box 400, and further the storage box 400 is opened to take and put food materials, and the use experience of the user is improved.

As shown in fig. 3, 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) and a plurality of fixing holes (not shown) are disposed on the upper cover 501 in a matched manner, the hooks are matched in the clamping protrusions, the fixing columns are matched in the fixing holes, and 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 of the case 406 of the storage case 400.

In some embodiments, a sealing sleeve 542 is disposed around a section of the shielding portion 5412 of the pressing movable member 541 of the cap 500 that shields the air inlet hole 520. As shown in fig. 3, the shielding portion 5412 is substantially rod-shaped, and by providing the sealing sleeve 542 around the shielding portion 5412, the shielding portion 5412 can tightly seal the air inlet 520 when pressure release is not needed, thereby reducing air leakage at the air inlet 520, and being beneficial to prolonging the vacuum holding time of the storage space 410.

In some embodiments, the box cover 500 of the present embodiment further includes a pressing spring 543 interposed between the main body portion 5411 and the lower cover 502. As shown in fig. 3, a positioning column 526 is disposed on the lower cover 502, a pressing spring 543 is sleeved outside the positioning column 526, and the positioning column 526 is disposed to limit the position of the pressing spring 543 in the lower cover 502, so as to avoid the problem that the pressing moving member 541 moves up and down due to the position dislocation after multiple pressing.

In some embodiments, the air filling protrusions 523 and the main body portion 5411 of the cap 500 according to the embodiment of the present utility model are disposed on the lower cap 502 at intervals along the length direction of the cap 500, and the air inlet holes 520 are opened along the width direction of the cap 500. Two support columns 525 are arranged on the lower cover 502 at intervals along the width direction of the box cover 500, and arc-shaped grooves 5250 are formed at the top end of each support column 525; the end of the main body portion 5411 remote from the shielding portion 5412 is formed with rotation shafts 5413 at both sides in the width direction of the box cover 500, respectively, and the rotation shafts 5413 are fitted in the arc-shaped grooves 5250. As shown in fig. 2 and 3, the air-charging protrusion 523 and the main body 5411 are provided on the lower cover 502 at intervals in the front-rear direction, and the air-intake hole 520 is opened in the right side wall surface of the air-charging protrusion 523 in the left-right direction. By providing two support columns 525 having arc grooves 5250, the rotating shaft 5413 of the main body 5411 of the pressing movable element 541 is matched in the arc grooves 5250, so that the pressing movable element 541 can be limited in an up-and-down movement in the lower cover 502, and the pressing movable element 541 can be restored after the inflation and the pressure relief are completed.

In some embodiments, the lower cover 502 is provided with a first mounting opening 522 extending therethrough in the up-down direction. The upper cover 501 is provided with a second mounting opening 510 penetrating in the up-down direction, wherein the projection of the second mounting opening 510 on the horizontal plane covers the first mounting opening 522. The box cover 500 of the embodiment of the present utility model further includes: the pressing top plate 552 is disposed at the second 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 main body 5411 for pressing. The air pressure indicating cylinder 505 is a hollow structure having an opening at a lower portion thereof and is a flexible deformation structure at least in a top region thereof, and the air pressure indicating cylinder 505 is disposed corresponding to the first mounting opening 522 such that a vacuum state in the storage space 410 is shown based on a degree of deformation of the flexible deformation structure of the top of the air pressure indicating cylinder 505. In the absence of the evacuation, the flexible deformation structure of the air pressure indicating cylinder 505 is naturally stretched out, as shown in fig. 5, protruding 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.

In some embodiments, the main body 5411 is provided with an insertion hole 5414 along the up-down direction; a hook 5520 is formed on the pressing top plate 552 at a position corresponding to the insertion hole 5414, and the hook 5520 is matched in the insertion hole 5414. By fitting the hooks 5520 of the pressing top plate 552 into the insertion holes 5414 of the main body portion 5411 of the pressing movable member 541, it is ensured that the pressing movable member 541 accurately performs the pressing operation applied to the pressing top plate 552 by the user.

The pressing top plate 552 and the air pressure indicating cylinder 505 may be an integral elastic member. As shown in fig. 5, the box cover 500 according to the embodiment of the present utility model may further include: the attachment 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. The lower cover 502 may be provided with a support bracket 524 for mating with the air pressure indicating cylinder 505. The mounting piece 551 is arranged to tightly fix the air pressure indicating column 505 and the supporting frame 524, so that the air pressure indicating column 505 is conveniently fixed and the air leakage at the first mounting opening 522 is reduced.

The embodiment of the present utility model further provides a storage box 400, including: a box 406 and a box cover 500. The box 406 defines a storage space 410 therein. The aforementioned box cover 500 is configured to be detachably sealed and fixed with the box body 406, thereby opening and closing the storage space 410. Fig. 7 is an exploded schematic view of the vacuum storage device 200 with the storage box 400 shown in fig. 1. Fig. 8 is a schematic cross-sectional view of the suction base 300 of the vacuum storage device 200 of fig. 7. The embodiment of the present utility model further provides a vacuum storage device 200, which generally includes: a suction base 300 and a storage box 400. A vacuum pump (not shown) is provided in the suction base 300, and a first suction port 310 is formed therein. The storage case 400 is formed with an extraction opening 420. The air extraction opening 420 of the storage box 400 is communicated with the first air extraction opening 310, so that the vacuum pump sequentially extracts part or all of the air in the storage space 410 through the first air extraction opening 310 and the air extraction opening 420. The storage box 400 can be configured to be detachably fixed with the air extraction base 300, so that food can be conveniently fetched into the storage box 400, and the use experience of a user is improved.

Fig. 6 is a schematic cross-sectional view of the case 406 of the storage case 400 shown in fig. 1. As shown in fig. 6, the case 406 includes an inner case 401 and an outer case 402, wherein the inner case 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 extraction opening 420 is formed in the outer box body 402, and a vacuum pump sequentially extracts part or all of gas in the storage space 410 through the first extraction opening 310, the extraction opening 420 and the gap 403. The storage box 400 according to the embodiment of the present utility model includes an inner box 401 and an outer box 402, so as to avoid the food material in the storage space 410 from falling and blocking the air extraction opening 420. As shown in fig. 5, the box cover 500 according to the embodiment of the present utility model 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, and a lower inner side surface is provided with a fixing protrusion 561. 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 ear 506 of outer box body 402 one-to-one joint is in order to realize lid 500 and box body 406 fixed.

Referring to fig. 6, the bottom wall of the outer case 402 of the storage case 400 is provided with an air extraction opening 420. The storage box 400 may further include a box air extraction switch 404 disposed at the air extraction opening 420, where the box air extraction switch 404 is an elastic member and configured to: the vacuum pump is started, and the box body air extraction switch 404 moves downwards under the suction force to form an air extraction channel with the air extraction 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 completion of bleeding, 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 with storing box 400, or place storing box 400 in the refrigerator outside, and storing box 400 still can keep vacuum state for vacuum storing device 200 has multiple application mode.

The structure of the suction base 300 will now be briefly described with reference to fig. 7 and 8. 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. The base 301 is formed with a plurality of placement grooves 311, and each placement groove 311 is formed with a first air extraction opening 310 therein, and a storage box 400 is correspondingly disposed. The suction base 300 further comprises: the base air extraction switch 303 is disposed at the first air extraction opening 310. The base bleed switch 303 includes: valve body 331, spring 332 and seal ring 333; wherein the valve body 331 has a horizontal portion (not numbered in the figure) and a vertical portion (not numbered in the figure) extending downward from the horizontal portion, the vertical portion of the valve body 331 is disposed through the first pumping port 310, the outer diameter is smaller than the inner diameter of the first pumping port 310, and an annular groove (not numbered in the figure) is formed at the lower portion; the spring 332 is sleeved outside the vertical part of the valve body 331 and is clamped between the horizontal part of the valve body 331 and the top wall of the air extraction base 300; the sealing ring 333 is sleeved in the annular groove, and the outer diameter of the sealing ring is larger than the inner diameter of the first air extraction opening 310. When the storage box 400 is placed in the air extraction base 300, the valve body 331 of the base air extraction switch 303 moves downwards under the action of gravity of the storage box 400, the spring 332 is compressed, the sealing ring 333 moves downwards, the first air extraction opening 310 is opened, and the outer diameter of the vertical part 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 and the first air extraction opening 310; when the storage box 400 is moved out of the air extraction base 300, the spring 332 is deformed upwards in a recovery manner, the sealing ring 333 is moved upwards, and the gap between the first air extraction opening 310 and the vertical part is blocked, so that the first air extraction opening 310 is closed. The air extraction base 300 is characterized in that the base air extraction switch 303 comprises a valve body 331, a spring 332 and a sealing ring 333, so that the structure of the base air extraction switch 303 is easy to configure and the cost is low; meanwhile, the opening and closing structure of the first air extraction opening 310 of the air extraction base 300 is very ingenious, the opening and closing of the first air extraction opening 310 are both related to the placement of the storage box 400, the problem that sundries such as particles enter the air extraction base 300 due to the fact that the first air extraction opening 310 is exposed 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.

With continued reference to fig. 8, the air extraction base 300 may further include an air extraction box 304 disposed in the base 301 and fastened below the first air extraction opening 310, where an abutment 341 is formed on the air extraction box 304, and a second air extraction opening is formed on the abutment 341; the vacuum pump is connected to the docking head 341 via a suction line. By providing the pumping box 304, the connection between the vacuum pump and the first pumping port 310 can be realized more easily. 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.

The vacuum storage device 200 of the present embodiment may be configured to pump air at regular intervals. Each of the air extraction bases 300 is provided with a vacuum pump, but a plurality of storage boxes 400 can be correspondingly arranged, so that the number of the storage boxes 400 on the air extraction base 300 can be confirmed first, and then the total air extraction time is determined 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. 6 and 7, 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 vacuum storage device 200 further comprises: a control module (not shown) is disposed in the base 301 and configured to control the vacuum pump switch based on the pairing signal of the magnetically sensitive switch and the magnet 405. For example, the control module may be configured to control the vacuum pump to turn on for a period of time after detecting the pairing signal of the magnetically sensitive switch and the magnet 405. The outer case 402 is also formed with a recess 422 for receiving the magnet 405.

Fig. 9 is a schematic view of a door liner 120 of a refrigerator having the vacuum storage device 200 shown in fig. 7. Embodiments of the present utility model provide a refrigerator that may generally include a cabinet, a door, and a vacuum storage apparatus 200. The box body is internally limited with at least one storage compartment with an open front side, and a plurality of storage compartments are usually arranged, such as a refrigerating compartment, a freezing compartment, a temperature changing compartment and the like. 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. The front side of the refrigerating chamber is provided with a pivoting door body. The storage compartment may be provided with cooling by a compression refrigeration system. The vacuum storage device 200 is arranged at the inner side of the door body, and the air extraction base 300 is fixed with the door liner 120 of the door body. 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, so that a user can conveniently take the food at any time without going to the deep position of the box body to take and put the food. As shown in fig. 8, 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 by fitting the hanging grooves 314 on the hanging lugs 121.

In the description of the present embodiment, it is to be understood that, for the storage box 400, the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate an azimuth or positional relationship with reference to the azimuth or positional relationship shown in fig. 2. 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 (10)

1. A lid for sealing a storage space of a storage box, comprising:

an upper cover;

the lower cover is fixed with the upper cover, an inflatable bulge is formed on the lower cover, the inflatable bulge is of a hollow structure with an opening at the lower part, and an air inlet hole is formed on the side wall surface of the inflatable bulge; and

the pressing movable piece is configured to move up and down in the lower cover and is provided with a main body part and a shielding part, wherein the shielding part extends from the main body part towards one side of the air inlet hole and shields the air inlet hole, so that the shielding part is driven to move downwards by pressing the main body part to open the air inlet hole so as to enable external air to enter the storage space.

2. The lid of claim 1, wherein,

a sealing sleeve is arranged on one circumference of the section of the shielding part, which shields the air inlet hole.

3. The lid as claimed in claim 1, further comprising:

and a pressing spring which is clamped between the main body part and the lower cover.

4. The lid of claim 3, wherein,

and a positioning column is formed on the lower cover, and the pressing spring is sleeved outside the positioning column.

5. The lid of claim 1, wherein,

the inflatable protrusions and the main body part are arranged on the lower cover at intervals along the length direction of the box cover, and the air inlet holes are formed along the width direction of the box cover; wherein the method comprises the steps of

Two support columns are arranged on the lower cover at intervals along the width direction of the box cover, and arc-shaped grooves are formed at the top ends of each support column;

the main part keep away from the one end of shielding portion is formed with the pivot respectively in the both sides of the width direction of lid, the pivot cooperation is in the arc wall.

6. The lid of claim 1, wherein,

the lower cover is provided with a first mounting opening penetrating through the lower cover in the up-down direction, the upper cover is provided with a second mounting opening penetrating through the upper cover in the up-down direction, and the projection of the second mounting opening on a horizontal plane covers the first mounting opening;

the box cover further comprises: the pressing top plate is arranged at the second mounting opening, one side of the pressing top plate is integrated with an air pressure indicating column, and the other side of the pressing top plate is positioned above the main body part for pressing; the air pressure indicating column is of a hollow structure with an opening at the lower part and is of a flexible deformation structure at least in the top area, and the air pressure indicating column is arranged corresponding to the first mounting opening so that the vacuum state in the storage space is shown based on the deformation degree of the top of the air pressure indicating column.

7. The lid of claim 6, wherein,

the main body part is provided with a plug hole along the up-down direction;

and a clamping hook is formed on the pressing top plate at a position corresponding to the plug hole, and the clamping hook is matched in the plug hole.

8. A storage case, comprising:

the box body is internally provided with a storage space; and

the lid of any one of claims 1-7, configured to be removably secured in a sealed relationship with the case body to open and close the storage space.

9. A vacuum storage device, comprising:

the vacuum pump is arranged in the air extraction base, and a first air extraction opening is formed in the air extraction base; and

the storage box of claim 8, wherein an extraction opening is formed in the storage box, and the extraction opening is communicated with the first extraction opening to enable the vacuum pump to extract part or all of air in the storage space through the first extraction opening and the extraction opening in sequence.

10. A refrigerator characterized by having the vacuum storage device according to claim 9.

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