Fresh-keeping storage box

Abstract

The utility model relates to the technical field of preservation boxes, in particular to a preservation storage box which comprises a box body and a box cover, the box cover is provided with a fixing protrusion extending towards the side of the box body, and fixing holes are formed in the inner wall of the box body. The lower end of the box cover is provided with a pressing type vacuumizing assembly and a pressure relief assembly, the pressure relief assembly comprises a knob and a movable part, one end of the movable part is connected with the fixed protrusion, and the other end of the movable part is provided with a movable protrusion abutting against the circumferential side wall of the knob; the box cover is provided with a groove for the rotary knob to rotate, the side wall of the groove is provided with an air leakage hole, the movable protrusion sequentially comprises an air leakage section and a sealing section from the inside of the box cover to the outside of the box cover, the movable protrusion slides in the air leakage hole, and the sealing section and the air leakage hole are arranged in a dynamic sealing mode; the movable part is matched with a first spring, a first abutting part and a second abutting part are arranged on the circumferential side wall of the rotary knob, and the first abutting part is closer to the circle center of the rotary knob than the second abutting part. The fresh-keeping box has the advantage of being better in fresh-keeping effect.

Description

TECHNICAL FIELD

[0001] The utility model preservative box technical field relates to especially a kind of preservative storage box. BACKGROUND

[0002] With the development of society and the progress of science and technology, people's preservation requirements for food are higher and higher, in order to make the food in the container can be preserved for a long time, usually the air in the container is extracted, so that the container is in a vacuum state, thereby realizing the preservation of food in the container. At present, the air in the container is usually extracted by a press-type vacuum assembly.

[0003] For example, the Chinese patent with application number 202420146411.0 discloses a new type of vacuum sealed jar, which includes a jar body and a jar cover. The jar body has a container cavity with an opening facing upward. The jar cover is detachably mounted on the top of the jar body and seals the opening of the container cavity. The jar cover is characterized in that it is provided with a vacuum device and a gas release assembly. The vacuum device is a gas bag type vacuum device, which expels the air in the container cavity by compressing the gas bag to achieve a vacuum state. The gas release assembly releases the pressure in the container cavity.

[0004] In the above-mentioned scheme, there is no fixing structure between the jar body and the jar cover. Most of the time, the jar cover is pressed tightly against the jar body by the negative pressure in the jar body. After long-term storage, if the jar cover loosens, air will immediately flow into the jar body, affecting the preservation effect. UTILITY MODEL CONTENTS

[0005] To solve the problems in the prior art, a preservative storage box with better preservation effect is provided.

[0006] The utility model discloses the following technical scheme for implementation: a preservative storage box, including box body and with box body sealable cooperation box lid, the fixed protrusion of box lid lower extreme is extended to the fixed protrusion of box body side and is equipped with the fixed hole of being inserted to the fixed protrusion on the inner wall of box body;The box lid is equipped with press-type vacuum assembly and pressure relief assembly, the pressure relief assembly includes knob, the movable piece located in the box lid and is arranged between the knob and the fixed protrusion, one end of the movable piece is connected with the fixed protrusion, and the other end is equipped with the movable protrusion of the circumferential side wall of knob abutment;The box lid is equipped with the recess for the rotation of knob, and the side wall of recess is equipped with air vent, the movable protrusion is sequentially included air release section and sealing section from inside to outside of box lid, and the movable protrusion slides in air vent and sealing section and air vent dynamic sealing are set;The movable piece is matched with first spring and under the action of first spring, the movable piece has the tendency of being close to knob, the circumferential side wall of knob is equipped with first abutment and second abutment, and the first abutment is closer to the center of knob than the second abutment;

[0007] When the movable convex is in contact with the first abutting part, the movable piece moves towards the knob side, so that the sealing section extends out of the air hole, and the air release section is in the air hole, at this time, the fixed convex is out of the fixed hole, the box cover is unlocked and the air is released; when the movable convex is in contact with the second abutting part, the movable piece moves away from the knob side, so that the sealing section is in the air hole, at this time, the fixed convex is in the fixed hole, the box cover is locked and sealed.

[0008] In actual use, the user first places the food to be preserved in the box body, rotates the knob in the positive direction, so that the movable convex is in contact with the first abutting part, and the movable piece moves towards the knob side, so that the fixed convex is retracted. The user covers the box cover on the box body, and rotates the knob in the reverse direction again, so that the movable convex is in contact with the second abutting part, and the movable piece moves away from the knob side, so that the fixed convex extends and extends into the fixed hole, to realize the locking between the box cover and the box body, at this time, the sealing section is in the air hole, and the box body and the box cover are sealed. At this time, the user can press the vacuum assembly, so that the gas in the box body is sucked out and a vacuum environment is formed. When the user needs to take out the food, the user rotates the knob in the positive direction, so that the movable convex is in contact with the first abutting part, and the movable piece moves towards the knob side, so that the fixed convex is retracted to exit the fixed hole, so that the box body and the box cover are unlocked, and at the same time, the sealing section extends out of the box cover, and the air release section is in the box cover. At this time, the air is released, so that the external air enters the box body, so that the negative pressure in the box body disappears, so that the box cover can be opened.

[0009] Among them, the pressing type vacuum assembly is any vacuum assembly used by the existing sealing storage box or sealing storage tank.

[0010] Among them, since the movable piece is matched with the first spring and has a tendency to move towards the knob under the action of the first spring, the movable convex always abuts on the circumferential side wall of the knob, and since the distances between the first abutting part and the second abutting part and the center of the knob are different, when the movable convex is in contact with different abutting parts, the movable piece moves, so that the positions of the sealing section and the air release section change and the position of the fixed convex changes.

[0011] Among them, the air release mode of the air release section can be that the diameter is small and difficult to seal with the air hole, so that air release occurs, or the air release section is provided with a notch or a slot, so that it is difficult to seal with the air hole and air release occurs, etc.

[0012] Among them, the above-mentioned sealing arrangement can be realized by any existing sealing assembly, such as the existing sealing ring.

[0013] The box body and the box cover can be locked or unlocked by rotating the knob, and the box body and the box cover can be deflated, and the two modes can be realized at one time, the efficiency is higher, the function of sealing and locking is needed, and the function of deflating is needed when the cover is opened. The locking of the box body and the box cover can make the cooperation between the two more closely, the sealing is better, and the preservation effect is better.

[0014] Preferably, the box cover is provided with a containing cavity extending from the fixed protrusion side to the groove side, and the movable part is slidably arranged in the containing cavity.

[0015] By arranging the containing cavity, the movement track of the movable part is limited, so that the movable part is more stable, and the sealing performance of the dynamic seal when the movable protrusion slides in the deflation hole is ensured.

[0016] Preferably, the movable part is provided with a placing groove for placing the first spring, the placing groove is provided with a first guide extending in the movement direction of the movable part, the box cover is provided with a support portion extending into the containing groove, one end of the first spring is sleeved on the first guide, and the other end is abutted on the support portion.

[0017] The extension direction of the first spring is guided by arranging the placing groove and the first guide, so that the extension direction of the movable part will not deviate, and the sealing performance of the dynamic seal is ensured.

[0018] Preferably, the first abutting portion and the second abutting portion are arranged on the same arc surface, the first abutting portion and the second abutting portion are respectively located at the circumferential two ends of the arc surface, and the distance between the arc surface and the center of the knob gradually increases from the arc surface at the first abutting portion to the arc surface at the second abutting portion.

[0019] When the knob rotates, the movable protrusion and the circumferential side wall of the knob slide relative to each other; therefore, the first abutting portion and the second abutting portion are arranged on the same arc surface, and the distance between the arc surface and the center of the knob is uniformly gradually increased or uniformly gradually decreased, so that the knob rotates more smoothly, and the movable protrusion will not suddenly pop out or suddenly retract.

[0020] Preferably, the number of movable parts is two and they are symmetrically arranged on the two sides of the knob, and the knob is provided with the arc surface corresponding to the movable protrusion.

[0021] The two movable parts can fix the opposite sides of the box body, so that the box cover and the box body are fixed more stably, and the arc surface of the knob is also provided with two and is centrally symmetric, so that the synchronous movement of the two movable parts can be realized.

[0022] Preferably, the vacuumizing assembly is located in the groove, the vacuumizing assembly is provided with a button, the knob is sleeved on the circumferential outer side of the button and is rotationally connected with the button.

[0023] The vacuumizing assembly is arranged in the groove and connected with the button in rotation, so that the structure of the box cover is more compact.

[0024] Preferably, an air suction cavity extending upward is arranged in the groove, the vacuumizing assembly comprises a second spring arranged in the air suction cavity and below the button, the button is in sliding cooperation and dynamic sealing with the air suction cavity, and a one-way valve is arranged at the bottom of the air suction cavity.

[0025] When the button is pressed by the user, the air in the air suction cavity flows out from the contact between the button and the air suction cavity, and when the button is pressed to the bottom, the button is released by the user, and at this time, the button is reset upward under the action of the second spring, so that the gas in the box body is sucked out; the above steps are repeated to realize the vacuum environment in the box body until the second spring is difficult to reset the button, that is, the elastic force of the second spring is difficult to overcome the pressure of the atmospheric pressure on the button. The one-way valve is a prior art, and the air can only flow out of the box body through the one-way valve.

[0026] Preferably, the lower end of the button is provided with a second guide extending downward, the bottom of the air suction cavity is provided with a third guide extending upward, and the two ends of the second spring are sleeved on the second guide and the third guide respectively; the air suction cavity is provided with a fourth guide extending upward, and the button has a sliding groove in sliding cooperation with the fourth guide.

[0027] The movement of the second spring is guided by the second guide and the third guide, and the movement of the button is guided by the fourth guide, so that the trajectory of the button when being pressed is up and down, so that the button will not be offset, so as to ensure the sealing performance of the dynamic sealing.

[0028] Preferably, the box cover and the box body and the button and the air suction cavity are all sealed by a sealing gasket, the sealing gasket comprises a vertical part and a horizontal part arranged integrally, the inner wall of the vertical part is in contact with the outer wall of the box cover or the outer wall of the button in the circumferential direction; the horizontal part is located at the lower end of the vertical part and extends to the outer side in the circumferential direction, a flange is arranged at the circumferential edge of the horizontal part, the flange is in contact with the inner wall of the box body or the air suction cavity, the flange extends upward and obliquely, and the thickness of the flange is less than that of the horizontal part.

[0029] The vertical part of the sealing gasket is in sealing fit with the outer wall of the box cover or the outer wall of the button, and the flange extends upward and outward, so that when air flows from inside to outside of the box body or from inside to outside of the air suction cavity, the flange can deform inward, and air can flow out easily.

[0030] Preferably, the knob is provided with a gripping protrusion extending upward, the button comprises a button body and a button cover, the button cover is sleeved on the button body and is rotationally connected with the button body, the button cover is provided with a circle of digital table, a circle of wave point groove and wave point protrusion corresponding to the wave point groove are arranged between the inner wall of the button cover and the outer wall of the button body, and the notch of the wave point groove corresponds to the number on the digital table.

[0031] The button cover can be rotated to correspond to different numbers, each number corresponds to the date of preservation, and the user can be reminded of the date of preservation.

[0032] Compared with the prior art, the utility model has the advantages of better sealing and preservation effect. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic view of the utility model;

[0034] Figure 2 It is a structural schematic view of the box cover;

[0035] Figure 3 It is a structural schematic view of the box body;

[0036] Figure 4 It is a sectional view in the unlocked state;

[0037] Figure 5 It is a sectional view of the circle; Figure 4

[0038] It is a sectional view of another circle; Figure 6 Figure 4 It is a sectional view in the locked state;

[0039] Figure 7 It is a sectional view of the circle;

[0040] Figure 8 Figure 7 It is a sectional view of another circle;

[0041] Figure 9 It is a structural schematic view of the movable part and the knob;

[0042] Figure 10 ​​for Figure 9 A bottom view;

[0043] Figure 11 This is a schematic diagram of the structure inside the groove;

[0044] Figure 12 This is a schematic diagram of the button's structure;

[0045] Figure 13 This is a schematic diagram of the sealing gasket structure;

[0046] Figure 14 This is a schematic diagram of the sealing gasket at the button.

[0047] Reference numerals: 1. Lid; 11. Groove; 111. Snap-on; 12. Insertion flange; 13. Receiving cavity shell; 14. Support part; 2. Box body; 21. Fixing hole; 22. Insertion groove; 3. Knob; 31. Grip protrusion; 32. Curved surface; 321. First abutting part; 322. Second abutting part; 4. Button; 41. Air extraction chamber; 411. Button cover; 412. Button body; 42. Second spring; 4 3. One-way valve; 44. Second guide; 45. Third guide; 46. Fourth guide; 5. Movable part; 51. First guide; 52. Fixed protrusion; 53. Movable protrusion; 531. Sealing section; 532. Venting section; 54. Venting hole sealing ring; 55. First spring; 6. Sealing gasket; 61. Vertical part; 62. Horizontal part; 63. Flanged edge; 71. Dotted protrusion; 72. Dotted groove; 8. Slide groove. Detailed Implementation

[0048] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0049] like Figures 1 to 4 As shown, this embodiment discloses a food storage box, including a lid 1 and a body 2. The lid 1 has a downwardly extending insertion flange 12 on its circumferential edge, and a sealing gasket 6 is fitted on the outer circumferential wall of the insertion flange 12. The body 2 has an upwardly opening insertion groove 22 that engages with the insertion flange 12. When the lid 1 and body 2 are closed, the insertion flange 12 is inserted into the insertion groove 22, and the sealing gasket 6 contacts the inner circumferential wall of the body 2 to achieve a seal.

[0050] like Figures 2 to 4 as well as Figures 9 to 11As shown, the center of the box cover 1 is provided with an upwardly open recess, and the two sides of the box cover 1 and the recess are provided with a containing cavity shell 13, which is upwardly open and surrounded by the box cover 1 to form a containing cavity, and the containing cavity is provided with a movable piece 5, one end of the movable piece 5 is provided with a fixed protrusion 52, and the other end is provided with a movable protrusion 53. A fixed hole 21 is arranged on the inner wall of the box body 2 and is matched with the fixed protrusion 52. The movable piece 5 is provided with an upwardly open placing groove, the placing groove is provided with a first spring 55, and a first guide 51 extending along the length direction of the movable piece 5 is arranged on the groove wall of the placing groove. The box cover 1 is provided with a support portion 14 extending into the placing groove, one end of the first spring 55 is sleeved on the first guide 51, and the other end is abutted on the support portion 14. The whole movable piece 5 has a tendency to move to the side of the recess 11 under the action of the first spring 55. The two containing cavity shells 13 are symmetrically arranged.

[0051] As shown in the figure, Figures 4 to 11 The wall of the recess is provided with a through air vent, and the movable protrusion 53 is arranged in the air vent. The movable protrusion 53 includes an air vent section 532 and a sealing section 531 from inside to outside of the box cover 1. The inner wall of the air vent is fixedly provided with an air vent sealing ring 54, the sealing section 531 is a complete cylindrical shape and is in dynamic sealing with the air vent sealing ring 54, and the air vent section 532 is provided with an upwardly open notch. The air vent sealing ring 54 is any existing sealing ring.

[0052] A plurality of buckles 111 are arranged on the inner wall of the recess 11, and the rotation knob 3 is provided with a ring-shaped clamping groove (not marked in the figure) matched with the buckles 111, so that the rotation knob 3 is rotationally connected with the recess 11. An arc surface 32 is arranged on the circumferential side wall of the rotation knob 3, and the circumferential two ends of the arc surface 32 are respectively a first abutting portion 321 and a second abutting portion 322. The first abutting portion 321 is closer to the center of the arc surface 32 of the rotation knob 3 than the second abutting portion 322. The distance between each place of the arc surface 32 and the center of the rotation knob 3 gradually increases from the arc surface at the first abutting portion 321 to the arc surface at the second abutting portion 322. The movable protrusion 53 can always abut against the arc surface 32 under the elastic action of the first spring 55. When the movable protrusion 53 abuts against the first abutting portion 321, the movable protrusion 53 protrudes out of the air vent, so that the sealing section 531 is located on the outside and the air vent section 532 is located in the air vent. At this time, it is in the air vent state, and at the same time, since the movable piece 5 moves to the side close to the recess 11, the fixed protrusion 52 is withdrawn from the fixed hole 21, so that the box cover 1 and the box body 2 are in the unlocked state. When the movable protrusion 53 abuts against the second abutting portion 322, the movable protrusion 53 moves inwardly, so that the sealing section 531 is located in the air vent. At this time, it is in the sealing state, and at the same time, since the movable piece 5 moves to the side away from the recess 11, the fixed protrusion 52 is inserted into the fixed hole 21, so that the box cover 1 and the box body 2 are in the locked state.

[0053] A grip protrusion 31 extending upward is arranged on the knob 3, and "on" and "off" indication characters are arranged on the box body 2. The rotation position of the grip protrusion 31 can correspond to "on" and "off", so that the user can determine the locked or unlocked state.

[0054] As shown in Figure 5 , Figure 8 and Figure 10 , a vacuumizing assembly is arranged in the groove 11, and the groove 11 is provided with a ring-shaped air exhaust cavity 41 extending upward, and the air exhaust cavity 41 is concentrically arranged with the groove 11. The vacuumizing assembly comprises a button 4 and a second spring 42 arranged in the air exhaust cavity 41 below the button 4, the button 4 is in sliding fit with the air exhaust cavity 41 and is dynamically sealed by the sealing gasket 6. The lower end of the button 4 is provided with a second guide 44 extending downward, the bottom of the air exhaust cavity 41 is provided with a third guide 45 extending upward, and the two ends of the second spring 42 are respectively sleeved on the second guide 44 and the third guide 45; two fourth guides 46 extending upward are arranged in the air exhaust cavity 41, and the button 4 has a sliding slot 8 in sliding fit with the fourth guide 46. The groove 11 is provided with a one-way valve 43 at the bottom of the air exhaust cavity 41, and the one-way valve 43 is arranged on the third guide 45. The one-way valve 43 has a tapered section and a vertical section, so that air can only flow out of the box body 2 to the outside of the box body 2 through the one-way valve 43. The one-way valve 43 is a prior art, and the principle will not be described here.

[0055] As shown in Figure 9 , Figure 12 , the button 4 comprises a button body 412 and a button cover 411, the button cover 411 is sleeved on the button body 412 and is rotationally connected with the button body 412. A ring-shaped digital table is arranged on the button cover 411, an inner wall of the button cover 411 is provided with a ring-shaped wave point groove 72, and an outer wall of the button body 412 is provided with a wave point protrusion 71, which can be clamped into a certain slot of the wave point groove 72. One slot of the wave point groove 72 corresponds to one number on the digital table.

[0056] As shown in Figure 2 , Figure 4 , Figure 5 and Figure 13 and Figure 14 , the box cover 1 and the box body 2 and the button 4 and the air exhaust cavity 41 are all sealed by the sealing gasket 6, and the sealing gasket 6 comprises an integral vertical part 61 and a horizontal part 62, and the inner wall of the vertical part 61 is in contact with the circumferential outer wall of the box cover 1 or the circumferential outer wall of the button 4. The horizontal part 62 is located at the lower end of the vertical part 61 and extends to the circumferential outer side, and a ring-shaped upwardly and obliquely extending flange 63 is arranged at the circumferential edge of the horizontal part 62, the flange 63 is in contact with the inner wall of the box body 2 or the inner wall of the air exhaust cavity 41, and the thickness of the flange 63 is less than the thickness of the horizontal part 62.

[0057] In use, the user first places the food to be preserved in the box body 2, holds the knob 3 and rotates it in the positive direction, so that the knob 3 corresponds to the "on" position. At this time, the movable lug 53 is in contact with the first abutting portion 321, the movable piece 5 moves towards the knob 3, so that the fixed lug 52 is retracted.

[0058] The user covers the box cover 1 on the box body 2, and rotates the knob 3 in the reverse direction, so that the knob 3 corresponds to the "off" position. At this time, the movable lug 53 is in contact with the second abutting portion 322, the movable piece 5 moves away from the knob 3, so that the fixed lug 52 is extended and inserted into the fixed hole 21, to realize the locking between the box cover 1 and the box body 2. At this time, the sealing section 531 is located in the air release hole, the box body 2 and the box cover 1 are sealingly arranged, and the user can press the vacuum assembly until the button 4 is pressed and the second spring 42 is difficult to reset the button 4, so that the gas in the box body 2 is sucked out and a vacuum environment is formed.

[0059] When the user needs to take out the food, the user holds the knob 3 and rotates it in the positive direction, so that the knob 3 corresponds to the "on" position. At this time, the movable lug 53 is in contact with the first abutting portion 321, the movable piece 5 moves towards the knob 3, so that the fixed lug 52 is retracted to exit the fixed hole 21, so that the box body 2 and the box cover 1 are unlocked, and the sealing section 531 is extended outside the box cover, and the air release section 532 is located in the box cover. At this time, the air release starts, the external air enters the box body 2, the negative pressure in the box body 2 disappears, and the box cover 1 can be opened.

Claims

1. A fresh-keeping storage box comprising a box body and a box cover sealable with the box body, characterized in that: The lower end of the box cover is provided with a fixing protrusion extending to the side of the box body, and the inner wall of the box body is provided with a fixing hole for inserting and matching the fixing protrusion; the box cover is provided with a pressing type vacuum extraction assembly and a pressure relief assembly, the pressure relief assembly comprises a rotating knob, a movable piece located in the box cover and arranged between the rotating knob and the fixing protrusion, one end of the movable piece is connected with the fixing protrusion, and the other end is provided with a movable protrusion abutting against the circumferential side wall of the rotating knob; the box cover is provided with a groove for rotating the rotating knob, and the side wall of the groove is provided with a gas vent hole, the movable protrusion comprises a gas venting section and a sealing section from inside the box cover to outside the box cover in sequence, and the movable protrusion slides in the gas vent hole and the sealing section is dynamically sealed with the gas vent hole; The movable piece is matched with a first spring and has a tendency to move close to the rotating knob under the action of the first spring, the circumferential side wall of the rotating knob is provided with a first abutting portion and a second abutting portion, and the first abutting portion is closer to the center of the rotating knob than the second abutting portion; When the movable protrusion is in contact with the first abutting portion, the movable piece moves to the side close to the rotating knob, so that the sealing section extends out of the gas vent hole, and the gas venting section is located in the gas vent hole, at this time, the fixing protrusion is separated from the fixing hole, the box cover is unlocked and the gas is vented; when the movable protrusion is in contact with the second abutting portion, the movable piece moves away from the rotating knob, and the sealing section is located in the gas vent hole, at this time, the fixing protrusion is located in the fixing hole, the box cover is locked and sealed.

2. The fresh-keeping storage box according to claim 1, characterized in that: The box cover is provided with a containing cavity extending from the side of the fixing protrusion to the side of the groove, and the movable piece is matched in the containing cavity.

3. The fresh-keeping storage box according to claim 1, characterized in that: The movable piece is provided with a placing groove for placing the first spring, the placing groove is provided with a first guide member extending in the moving direction of the movable piece, the box cover is provided with a supporting portion extending into the containing groove, one end of the first spring is sleeved on the first guide member, and the other end abuts against the supporting portion.

4. The fresh-keeping storage box according to claim 1, characterized in that: The first abutting portion and the second abutting portion are arranged on the same arc surface, and the first abutting portion and the second abutting portion are respectively located at the two ends of the circumferential direction of the arc surface; the distance between the arc surface and the center of the rotating knob gradually increases from the arc surface at the first abutting portion to the arc surface at the second abutting portion.

5. The fresh-keeping storage box according to claim 4, characterized in that: The number of movable pieces is two and they are symmetrically arranged on both sides of the rotating knob, and the rotating knob is provided with the arc surface corresponding to the movable protrusion.

6. The fresh-keeping storage box according to any one of claims 1 to 5, characterized in that: The vacuum extraction assembly is located in the groove, the vacuum extraction assembly is provided with a button, and the rotating knob is sleeved on the circumferential outer side of the button and is rotationally connected with the button.

7. The fresh-keeping storage box according to claim 6, characterized in that: The groove is provided with a ring of upward extending air extraction cavities, the vacuum extraction assembly comprises a second spring arranged in the air extraction cavity and located below the button, the button is slidingly matched with the air extraction cavity and is dynamically sealed, and the groove is provided with a one-way valve at the bottom of the air extraction cavity.

8. The fresh-keeping storage box according to claim 7, characterized in that: The lower end of the button is provided with a second guide member extending downward, the bottom of the air extraction cavity is provided with a third guide member extending upward, and the two ends of the second spring are respectively sleeved on the second guide member and the third guide member; the air extraction cavity is provided with a fourth guide member extending upward, and the button has a sliding groove slidingly matched with the fourth guide member.

9. The fresh-keeping storage box according to claim 6, characterized in that: The box cover and the box body and the button and the air exhaust cavity are sealed by the sealing gasket, the sealing gasket comprises a vertical part and a horizontal part, the inner wall of the vertical part is in contact with the outer wall of the box cover or the button, the horizontal part is located at the lower end of the vertical part and extends to the outer wall, a turn-up edge is arranged at the circumferential edge of the horizontal part, the turn-up edge is in contact with the inner wall of the box body or the air exhaust cavity, the turn-up edge extends upward, and the thickness of the turn-up edge is smaller than that of the horizontal part.

10. The fresh-keeping storage box according to claim 6, characterized in that: A knob is arranged on the rotary knob and extends upward; the button comprises a button body and a button cover, the button cover is sleeved on the button body and is rotationally connected with the button body, a number table is arranged on the button cover, a wave point groove and a wave point groove corresponding wave point protrusion are arranged between the inner wall of the button cover and the outer wall of the button body, and the slot of the wave point groove corresponds to the numbers on the number table.

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