Box components, fresh-keeping boxes

Abstract

The present invention discloses a box body assembly and a fresh-keeping box. The box body assembly includes a box body; a box cover, the box cover is arranged on the box body, and the box cover and the box body together enclose a sealed space; a movable structure, a receiving cavity is formed in the box cover, and the movable structure is movably arranged in the receiving cavity. The box body assembly and fresh-keeping box of the present invention use the movable structure to form a first pressure cavity and a second pressure cavity with variable volume on the box cover, and use the first one-way mechanism and the second one-way mechanism so that the movable structure can discharge the gas in the sealed space into the outside atmosphere through the first pressure cavity and the second pressure cavity in sequence when performing reciprocating motion, so that the air density in the sealed space decreases as the mass of the gas decreases. At this time, the vacuum degree of the sealed space decreases accordingly, and the stability of the vacuum degree in the sealed space is ensured by the first one-way mechanism, thereby ensuring the reliability of the fresh-keeping box.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh-keeping equipment, and more particularly to a box assembly and a fresh-keeping box. Background Art

[0002] With the continuous progress of society and the continuous improvement of people's living standards, fresh-keeping containers, as a new and convenient fresh-keeping device, are increasingly being used by people and are becoming an increasingly common part of their daily lives. Existing vacuum fresh-keeping containers generally use a vacuum pump to extract the air inside the container to reduce the vacuum level, thereby achieving the purpose of freshness. However, to use the vacuum fresh-keeping container, an electric or manual vacuum pump is required, making it inconvenient to use the fresh-keeping device. Summary of the Invention

[0003] The invention discloses a box body assembly and a fresh-keeping box, which solves the problem of inconvenient use of fresh-keeping appliances in the prior art.

[0004] The present invention discloses a box assembly, comprising:

[0005] Box body;

[0006] A box cover, the box cover is arranged on the box body, and the box cover and the box body together enclose a sealed space;

[0007] A movable structure, wherein a receiving chamber is formed in the box cover, and the movable structure is movably disposed in the receiving chamber, and the movable structure divides the receiving chamber into a first pressure chamber and a second pressure chamber;

[0008] a first one-way mechanism, wherein the first one-way mechanism is disposed on the movable structure, wherein a flow direction of the first one-way mechanism is directed from the first pressure chamber to the second pressure chamber, and the second pressure chamber is connected to the first pressure chamber through the first one-way mechanism;

[0009] a second one-way mechanism, the second one-way mechanism being provided on the box cover, and the gas flow direction of the second one-way mechanism being directed from the sealed space to the first pressure chamber, the sealed space being in communication with the first pressure chamber through the second one-way mechanism;

[0010] The second pressure chamber is in communication with the outside atmosphere.

[0011] The box body assembly also includes a driving structure, which is movably arranged on the box cover. The moving structure is connected to the driving structure, and the driving structure can drive the moving structure to move to adjust the volume of the first pressure chamber and the volume of the second pressure chamber.

[0012] A first sliding groove is provided on the movable structure, and a slider is provided on the driving structure, and the slider slides in cooperation with the first sliding groove to enable the movable structure to move along the axial direction of the movable structure; or a slider is provided on the movable structure, and a first sliding groove is provided on the driving structure, and the slider slides in cooperation with the first sliding groove to enable the movable structure to move along the axial direction of the movable structure.

[0013] The first sliding groove has multiple crests and multiple troughs, and all the crests and all the troughs are arranged in sequence. When the slider passes through two adjacent crests or two adjacent troughs, the moving structure performs reciprocating motion in sequence.

[0014] The movable structure is provided with a sleeve, the first sliding groove is provided on a first side surface of the sleeve, and the first sliding grooves are connected end to end to form an annular groove, and the sliding block is movably provided in the annular groove.

[0015] The driving structure further comprises a handle, which is rotatably arranged on the box cover, and the slider is arranged on the handle.

[0016] The driving structure further includes an extension mechanism, which is provided on the handle and has a storage state in which the extension mechanism is stored on the handle and an extension state in which the extension mechanism is located outside the handle.

[0017] The movable structure is provided with a first guide matching portion, and the box cover is provided with a second guide matching portion. The first guide matching portion and the second guide matching portion are guided and matched to enable the movable structure to move along the axial direction of the movable structure.

[0018] The movable structure is provided with a sleeve, a guide groove is provided on the second side of the sleeve, and the box cover is provided with a guide block, which is guided and matched with the guide groove. The guide groove constitutes the first guide matching part, and the guide block constitutes the second guide matching part.

[0019] The box body assembly further includes a pressure relief structure, which is provided on the box cover and / or the box body, and can connect the sealed space with the outside atmosphere.

[0020] Another aspect of the present invention provides a fresh-keeping box, comprising the above-mentioned box body assembly.

[0021] The box body assembly and fresh-keeping box of the present invention utilize a movable structure to form a first pressure chamber and a second pressure chamber with variable volume on the box lid, and utilize a first one-way mechanism and a second one-way mechanism so that the movable structure can discharge the gas in the sealed space into the outside atmosphere through the first pressure chamber and the second pressure chamber in sequence when performing reciprocating motion, so that the air density in the sealed space decreases as the mass of the gas decreases. At this time, the vacuum degree of the sealed space decreases accordingly, and the first one-way mechanism is used to ensure the stability of the vacuum degree in the sealed space, thereby ensuring the reliability of the fresh-keeping box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic structural diagram of a box assembly according to an embodiment of the present invention;

[0023] Figure 2 is an exploded view of a box assembly according to an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of a box cover according to an embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of a box assembly according to an embodiment of the present invention;

[0026] Figure 5 is another cross-sectional view of the box assembly according to an embodiment of the present invention;

[0027] Figure 6 is a perspective view of a mobile structure according to an embodiment of the present invention;

[0028] Figure 7 is a schematic structural diagram of a driving structure according to an embodiment of the present invention;

[0029] Figure 8 This is a structural schematic diagram of an extension mechanism in an embodiment of the present invention in an extended state;

[0030] Legend: 1. Box body; 2. Box cover; 11. Sealed space; 3. Moving structure; 21. First pressure chamber; 22. Second pressure chamber; 4. First one-way mechanism; 5. Second one-way mechanism; 31. First slide groove; 61. Slider; 7. Sleeve; 62. Handle; 63. Extension mechanism; 32. Guide groove; 23. Guide block; 8. Pressure relief structure. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the embodiments, but is not limited to the contents of the description.

[0032] like Figures 1 to 8As shown, the present invention discloses a box body assembly, comprising: a box body 1; a box cover 2, wherein the box cover 2 is arranged on the box body 1, and the box cover 2 and the box body 1 together enclose a sealed space 11; a moving structure 3, wherein an accommodating chamber is formed in the box cover 2, the moving structure 3 is movably arranged in the accommodating chamber, and the moving structure 3 divides the accommodating chamber into a first pressure chamber 21 and a second pressure chamber 22; a first one-way mechanism 4, wherein the first one-way mechanism 4 is arranged on the moving structure 3, and the gas flow direction of the first one-way mechanism 4 is from the first pressure chamber 21 to the second pressure chamber 22, and the second pressure chamber 22 is connected to the first pressure chamber 21 through the first one-way mechanism 4; a second one-way mechanism 5, wherein the second one-way mechanism 5 is arranged on the box cover 2, and the gas flow direction of the second one-way mechanism 5 is from the sealed space 11 to the first pressure chamber 21, and the sealed space 11 is connected to the first pressure chamber 21 through the second one-way mechanism 5; the second pressure chamber 22 is connected to the outside atmosphere. A first pressure chamber 21 and a second pressure chamber 22 with variable volumes are formed on the box cover 2 by using the movable structure 3, and a first one-way mechanism 4 and a second one-way mechanism 5 are used so that the movable structure 3 can discharge the gas in the sealed space 11 into the outside atmosphere through the first pressure chamber 21 and the second pressure chamber 22 in sequence when performing reciprocating motion, so that the air density in the sealed space 11 decreases as the mass of the gas decreases. At this time, the vacuum degree of the sealed space 11 decreases accordingly, and the first one-way mechanism 4 is used to ensure the stability of the vacuum degree in the sealed space 11, thereby ensuring the reliability of the fresh-keeping box.

[0033] Taking the case where the volume of the first pressure chamber 21 is at its minimum and the volume of the second pressure chamber 22 is at its maximum as an example, when the box body assembly is undergoing a vacuuming process, the movable structure 3 moves in the first direction. At this time, the volume of the first pressure chamber 21 gradually increases, while the volume of the second pressure chamber 22 gradually decreases. Since the sealed space 11 is connected to the first pressure chamber 21 through the second one-way mechanism 5, the gas in the sealed space 11 can flow into the first pressure chamber 21 through the second one-way mechanism 5 until the volume of the first pressure chamber 21 reaches its maximum. At this time, the volume of the second pressure chamber 22 reaches its minimum. At the same time, the gas pressure and gas density in the first pressure chamber 21 and the sealed space 11 are the same. Then the movable structure 3 starts to move in the second direction (opposite to the first direction). The volume of the first pressure chamber 21 gradually decreases, while the volume of the second pressure chamber 22 gradually increases. Due to the action of the second one-way mechanism 5, the first pressure chamber 2 1 cannot enter the sealed space 11. At the same time, since the first pressure chamber 21 is connected to the second pressure chamber 22 through the first one-way mechanism 4, the gas in the first pressure chamber 21 can only be forced to enter the second pressure chamber 22 through the first one-way mechanism 4 as the moving structure 3 moves, until the volume of the first pressure chamber 21 reaches the minimum. At this time, the gas in the first pressure chamber 21 is basically discharged into the second pressure chamber 22, and then the moving structure 3 moves along the first direction again. At this time, the moving structure 3 completes a reciprocating motion, and the box body assembly completes a vacuuming process. Each time the gas in the sealed space 11 enters the first pressure chamber 21, part of the gas in the sealed space 11 will be cut off in the first pressure chamber 21. Therefore, when the box body assembly repeats the above process, that is, when the moving structure 3 performs multiple reciprocating motions, the amount of gas in the sealed space 11 gradually decreases, and finally the purpose of vacuuming the sealed space 11 is achieved.

[0034] The movable structure 3 is a silicone sealing pad.

[0035] The first one-way mechanism 4 and the second one-way mechanism 5 can both be one-way valves.

[0036] The box body assembly further includes a drive structure that is movably disposed on the box cover 2. The movable structure 3 is connected to the drive structure and is capable of driving the movable structure 3 to move to adjust the volume of the first pressure chamber 21 and the volume of the second pressure chamber 22. The drive structure is capable of driving the movable structure 3 to perform reciprocating motion, thereby achieving the purpose of vacuuming the box body assembly.

[0037] In one embodiment, the movable structure 3 is provided with a first chute 31, and the driving structure is provided with a slider 61. The slider 61 slidably cooperates with the first chute 31 to move the movable structure 3 along the axial direction of the movable structure 3. When the slider 61 moves, the slider 61 squeezes the side wall of the first chute 31, thereby applying a squeezing force to the first chute 31, and the movable structure 3 can move under the action of the squeezing force.

[0038] Specifically, the first chute 31 has multiple peaks and multiple troughs, all of which are arranged in sequence. When the slider 61 passes through two adjacent peaks or two adjacent troughs, the mobile structure 3 performs reciprocating motion in sequence. Preferably, the first chute 31 is in the shape of a sine wave, and the first chute 31 between adjacent peaks and troughs is arc-shaped. When the slider 61 is in the arc-shaped portion, it will generate an oblique extrusion force on the first chute 31. The component of the extrusion force in the axial direction of the mobile structure 3 can drive the mobile structure 3 to reciprocate. For example, when the slider 61 slides from the trough to the peak, the extrusion force can drive the mobile structure 3 to move in the first direction, and then when the slider 61 slides from the peak to the trough, the extrusion force can drive the mobile structure 3 to move in the second direction, thereby realizing the reciprocating motion of the mobile structure 3.

[0039] Optionally, the movable structure 3 is provided with a sleeve 7, and the first chute 31 is provided on a first side surface of the sleeve 7. The first chute 31 is connected end to end to form an annular groove, and the slider 61 is movably provided in the annular groove. In this case, the slider 61 can maintain its movement within the annular groove by performing a circular motion, thereby achieving continuous reciprocating motion of the movable structure 3.

[0040] like Figure 1 As shown, the inner surface of the sleeve 7 constitutes the first side surface of the sleeve 7, the first sliding groove 31 is arranged on the inner surface of the sleeve 7, the slider 61 is located inside the sleeve 7, and the slider 61 can make a circular motion along the axis of the sleeve 7, thereby realizing the reciprocating motion of the moving structure 3 along the axis of the sleeve 7.

[0041] There may be at least two sliders 61 , and all the sliders 61 may be movably disposed in the first sliding groove 31 , thereby ensuring reliable movement of the movable structure 3 .

[0042] The number of wave crests or wave troughs in the first sliding groove 31 is four. At this time, when the slider 61 rotates one circle, the moving structure 3 can perform four reciprocating motions, thereby realizing four vacuuming processes of the sealed space 11 .

[0043] The driving structure also includes a handle 62, which is rotatably mounted on the box cover 2. The slider 61 is mounted on the handle 62. The user can use the handle 62 to drive the slider 61 to perform circular motion, thereby driving the movable structure 3 to perform reciprocating motion. The user can also use the handle 62 to pick up the box assembly.

[0044] In order to facilitate the user's holding, the handle 62 is provided with an arc-shaped groove that matches the fingers, thereby improving the user's comfort when holding it.

[0045] To facilitate the rotation of the slider 61, the drive structure further includes an extension mechanism 63, which is disposed on the handle 62 and has a retracted state, where it is retracted onto the handle 62, and an extended state, where it is located outside the handle 62. When the extension mechanism 63 is in the extended state, the lever arm for rotating the handle 62 is increased, allowing the user to directly push the extension mechanism 63 to complete the rotation of the handle 62 and the slider 61. To prevent the extension mechanism 63 from increasing the size of the handle 62 or even the box assembly, the extension mechanism 63 is switched to the retracted state when the handle 62 is no longer needed, at which point the extension mechanism 63 is stored within the handle 62.

[0046] Specifically, the extension mechanism 63 includes an extension rod, and a receiving groove is provided on the handle 62. One end of the extension rod is hinged to one end of the receiving groove. When the extension mechanism 63 is in the storage state, the extension rod is located in the receiving groove. When the extension mechanism 63 is in the extension state, the extension rod flips out of the receiving groove and flips to a position in the same plane as the handle 62. At this time, all dimensions of the extension rod constitute the extension lever arm of the handle 62, thereby reducing the force required to rotate the handle 62 and improving the user experience.

[0047] In order to ensure that the mobile structure 3 can move along the set direction (the axial direction of the mobile structure 3), a first guide matching portion is provided on the mobile structure 3, and a second guide matching portion is provided on the box cover 2. The first guide matching portion and the second guide matching portion guide and match to enable the mobile structure 3 to move along the axial direction of the mobile structure 3.

[0048] Specifically, the movable structure 3 is provided with a sleeve 7, and a guide groove 32 is provided on the second side surface of the sleeve 7. The box cover 2 is provided with a guide block 23. The guide block 23 is guided and engaged with the guide groove 32. The guide groove 32 constitutes the first guide engagement portion, and the guide block 23 constitutes the second guide engagement portion. The sliding direction of the guide block 23 in the guide groove 32 is parallel to the axis of the movable structure 3.

[0049] As another embodiment, the difference from the previous embodiment is that a slider 61 is provided on the movable structure 3, and a first slide groove 31 is provided on the driving structure. The slider 61 slides with the first slide groove 31 to make the movable structure 3 move along the axial direction of the movable structure 3.

[0050] The box assembly further includes a pressure relief structure 8 , which is disposed on the box cover 2 and / or the box body 1 , and can connect the sealed space 11 to the outside atmosphere.

[0051] The pressure relief structure 8 includes a pressure relief valve. A pressure relief hole is provided on the box cover 2 or the box body 1 , and the pressure relief valve is provided at the pressure relief hole.

[0052] The pressure relief valve includes a rubber plug and a return spring. The rubber plug has a closed state for closing the pressure relief hole and a pressure relief state for opening the pressure relief hole. The return spring abuts against the rubber plug and can drive the rubber plug to switch to the closed state.

[0053] When pressure relief is needed in the sealed space 11, the rubber stopper can be squeezed to switch to the pressure relief state. This allows the sealed space 11 to communicate with the outside atmosphere through the pressure relief hole, allowing the gas from the outside atmosphere to enter the sealed space 11. Ultimately, the gas pressure in the sealed space 11 is equal to that of the outside atmosphere. When pressure relief is no longer needed, the rubber stopper is released, and the reset mechanism drives the rubber stopper to switch to the closed state. This disconnects the sealed space 11 from the outside atmosphere.

[0054] Another aspect of the present invention provides a fresh-keeping box, comprising the above-mentioned box body assembly.

[0055] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not possible to enumerate all embodiments here. Any obvious variations or modifications arising from the technical solution of the present invention remain within the scope of protection of the present invention.

Claims

1. A box assembly, characterized in that: include: Box body (1); A box cover (2), the box cover (2) being arranged on the box body (1), and the box cover (2) and the box body (1) together enclose a sealed space (11); A movable structure (3), wherein a receiving chamber is formed in the box cover (2), the movable structure (3) is movably arranged in the receiving chamber, and the movable structure (3) divides the receiving chamber into a first pressure chamber (21) and a second pressure chamber (22); a first one-way mechanism (4), the first one-way mechanism (4) being arranged on the movable structure (3), the gas flow direction of the first one-way mechanism (4) being directed from the first pressure chamber (21) to the second pressure chamber (22), the second pressure chamber (22) being connected to the first pressure chamber (21) via the first one-way mechanism (4); a second one-way mechanism (5), the second one-way mechanism (5) being arranged on the box cover (2), and the gas flow direction of the second one-way mechanism (5) being directed from the sealed space (11) to the first pressure chamber (21), and the sealed space (11) being communicated with the first pressure chamber (21) through the second one-way mechanism (5); The second pressure chamber (22) is in communication with the outside atmosphere; The box body assembly further comprises a driving structure, wherein the driving structure is movably arranged on the box cover (2), the moving structure (3) is connected to the driving structure, and the driving structure is capable of driving the moving structure (3) to move so as to adjust the volume of the first pressure chamber (21) and the volume of the second pressure chamber (22).

2. The box assembly according to claim 1, wherein: The movable structure (3) is provided with a first slide groove (31), the driving structure is provided with a slider (61), and the slider (61) and the first slide groove (31) are slidably matched to enable the movable structure (3) to move along the axial direction of the movable structure (3); or, the movable structure (3) is provided with a slider (61), the driving structure is provided with a first slide groove (31), and the slider (61) and the first slide groove (31) are slidably matched to enable the movable structure (3) to move along the axial direction of the movable structure (3).

3. The box assembly according to claim 2, characterized in that: The first sliding groove (31) has a plurality of crests and a plurality of troughs, all of the crests and all of the troughs are arranged at intervals, and when the slider (61) passes through two adjacent crests or two adjacent troughs, the moving structure (3) performs a reciprocating motion.

4. The box assembly according to claim 3, wherein: A sleeve (7) is provided on the movable structure (3), the first sliding groove (31) is provided on a first side surface of the sleeve (7), and the first sliding grooves (31) are connected end to end to form an annular groove, and the slider (61) is movably provided in the annular groove.

5. The box assembly according to claim 4, characterized in that: The driving structure further comprises a handle (62), the handle (62) being rotatably arranged on the box cover (2), and the slider (61) being arranged on the handle (62).

6. The box assembly according to claim 5, characterized in that: The driving structure further comprises an extension mechanism (63), wherein the extension mechanism (63) is arranged on the handle (62), and the extension mechanism (63) has a storage state in which the extension mechanism is stored on the handle (62) and a lengthened state in which the extension mechanism is located outside the handle (62).

7. The box assembly according to claim 1, wherein: The movable structure (3) is provided with a first guide fitting portion, and the box cover (2) is provided with a second guide fitting portion, wherein the first guide fitting portion and the second guide fitting portion cooperate with each other to enable the movable structure (3) to move along the axial direction of the movable structure (3).

8. The box assembly according to claim 7, characterized in that: The movable structure (3) is provided with a sleeve (7), a guide groove (32) is provided on the second side surface of the sleeve (7), and a guide block (23) is provided on the box cover (2). The guide block (23) is in guiding cooperation with the guide groove (32), the guide groove (32) constitutes the first guide cooperation portion, and the guide block (23) constitutes the second guide cooperation portion.

9. The box assembly according to claim 1, wherein: The box body assembly further comprises a pressure relief structure (8), which is arranged on the box cover (2) and / or the box body (1), and the pressure relief structure (8) can connect the sealed space (11) with the outside atmosphere.

10. A fresh-keeping box, characterized in that: The invention comprises the box assembly according to any one of claims 1 to 9.

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