Constant-pressure vacuum preservation box

Abstract

The utility model relates to a constant-pressure vacuum preservation box which comprises a box body, a box cover arranged on the box body, an exhaust structure arranged on the box cover and a sealing structure arranged on the box body. The exhaust structure comprises a circular cavity fixedly formed in the box cover, a disc rotationally arranged in the circular cavity and eccentrically arranged with the circular cavity, a rotating shaft rotationally arranged on the circular cavity in a penetrating mode, a push plate with one end fixedly arranged on the rotating shaft, a through groove formed in the disc and an air inlet pipe arranged on the side wall of the circular cavity. The air outlet pipes are symmetrically arranged on the side wall of the circular cavity, the sealing assembly is rotatably arranged on the box cover, and the motor is fixedly arranged on the outer surface of the box cover and used for driving the rotating shaft to rotate; the rotating shaft and the circular cavity are concentric; and the other end of the push plate is movably arranged in the through groove. When the constant-pressure vacuum preservation box is used, gas in the preservation box can be exhausted without an additional vacuum pump, so that the preservation box is in a vacuum environment, and the preservation box is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of food preservation technology, specifically to a constant pressure vacuum preservation box. Background Technology

[0002] Vacuum preservation is a relatively effective food preservation method. Its core principle is to remove the air from the packaging to create a low-oxygen or anaerobic environment. Most aerobic microorganisms find it difficult to survive and reproduce in such an environment. At the same time, the low-oxygen environment can also slow down the oxidation rate of some components in the food, thereby extending the shelf life of the food and maintaining its quality and nutritional components. Existing vacuum preservation boxes require the use of manual or electric air pumps to remove the air from the box, which is inconvenient. Now, a constant pressure vacuum preservation box is used, which does not require an additional air pump to create a vacuum environment inside the box, making it convenient to use. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section, some embodiments of this application provide a constant-pressure vacuum food storage box, including a box body, a lid on the box body, an exhaust structure on the lid, and a sealing structure on the box body. The exhaust structure includes a circular cavity fixed on the lid, a disc rotatably disposed within the circular cavity and eccentrically positioned with respect to the circular cavity, a rotating shaft rotatably disposed through the circular cavity, a push plate with one end fixed to the rotating shaft, a through groove on the disc, an air inlet pipe on the side wall of the circular cavity, air outlet pipes symmetrically disposed on the side wall of the circular cavity, a sealing assembly rotatably disposed on the lid, and a motor fixed on the outer surface of the lid for driving the rotating shaft to rotate. The rotating shaft is concentric with the circular cavity. The other end of the push plate is movably disposed within the through groove.

[0005] Specifically, the sealing assembly includes a support rod rotatably mounted on the lid, a cover plate fixedly mounted on the support rod, a first vent on the cover plate, a one-way vent valve fixedly mounted in the vent hole, a second vent on the cover plate, a cylinder fixedly mounted on the lid, a ball bearing movably mounted in the cylinder, and springs fixed at both ends on the cylinder and the ball bearing, respectively.

[0006] Specifically, one end of the push plate is provided with an arc-shaped rubber block.

[0007] Specifically, an arc-shaped surface is provided between the bottom of the box and the side wall.

[0008] Specifically, the box body and the box cover are threaded together.

[0009] Specifically, the sealing assembly includes a ring disposed inside the lid and a sealing rubber ring disposed between the ring and the side wall of the lid.

[0010] Specifically, the sealing assembly also includes a plurality of annular protrusions fixed on the box cover and a groove on the sealing ring that cooperates with the plurality of annular protrusions.

[0011] The beneficial effects of this utility model are:

[0012] (1) When using this food storage container, close the lid, start the motor, the motor drives the rotating shaft to rotate, the push plate rotates accordingly, and at the same time drives the disc to rotate around the rotating shaft. Since the disc and the circular cavity are eccentrically set, the push plate moves back and forth in the through groove on the disc during the rotation. The air in the food storage container enters the circular cavity through the air inlet pipe. Since the length of the push plate is the same as the radius of the circular cavity, the push plate pushes the gas into the air outlet pipe during the rotation, and then discharges it outside the food storage container. After the gas in the food storage container is discharged, the sealing component closes the air outlet pipe to prevent outside air from entering. Using this food storage container, the air in the food storage container can be discharged directly without the need for a separate air pump, which is convenient to use.

[0013] (2) When it is necessary to release gas, rotate the cover plate so that the first vent hole is aligned with the vent pipe and the second vent hole is aligned with the cylinder. The ball bearing limits the cover plate. The air in the food storage box is released through the one-way vent valve. After the venting stops, the gas will not enter the food storage box again. Since the food storage box is not easy to open after vacuuming, when it is necessary to open the food storage box, rotate the cover plate again so that the second vent hole is aligned with the vent pipe. The motor reverses and fills the food storage box with outside air in the same way as the venting, so that the food storage box can be opened. This solves the problem that the vacuum food storage box is not easy to open after vacuuming. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0015] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0016] In the attached diagram:

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2This is a top view of the present invention;

[0019] Figure 3 for Figure 2 AA-line sectional view;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0021] Figure 5 for Figure 2 BB line section view;

[0022] Figure 6 for Figure 5 Enlarged view of point B in the image;

[0023] Figure 7 for Figure 5 CC-line sectional view. Detailed Implementation

[0024] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0025] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0026] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0027] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1-7As shown, the constant pressure vacuum food storage box of this utility model includes a box body 1, a box lid 2 disposed on the box body 1, an exhaust structure 3 disposed on the box lid 2, and a sealing structure 4 disposed on the box body 1. The exhaust structure 3 includes a circular cavity 31 fixedly disposed on the box lid 2, a disc 32 rotatably disposed in the circular cavity 31 and eccentrically disposed with respect to the circular cavity 31, a rotating shaft 33 rotatably disposed through the circular cavity 31, a push plate 34 fixed at one end on the rotating shaft 33, a through groove 35 disposed on the disc 32, an air inlet pipe 36 disposed on the side wall of the circular cavity 31, an air outlet pipe 37 symmetrically disposed on the side wall of the circular cavity 31, a sealing component 38 rotatably disposed on the box lid 2, and a motor 39 fixedly disposed on the outer surface of the box lid 2 for driving the rotating shaft 33 to rotate; the rotating shaft 33 is concentric with the circular cavity 31; the other end of the push plate 34 is movably disposed in the through groove 35.

[0030] When using this food storage container, close the lid 2 and start the motor 39. The motor 39 drives the rotating shaft 33 to rotate, and the push plate 34 rotates accordingly. At the same time, it drives the disc 32 to rotate around the rotating shaft 33. Since the disc 32 and the circular cavity 31 are eccentrically set, the push plate 34 moves back and forth in the through groove 35 on the disc 32 during rotation. The air in the food storage container enters the circular cavity 31 through the air inlet pipe 36. Since the length of the push plate 34 is the same as the radius of the circular cavity 31, the push plate 34 pushes the gas into the air outlet pipe 37 during rotation, and then discharges it outside the food storage container. After the gas in the food storage container is discharged, the sealing component 38 closes the air outlet pipe 37 to prevent outside air from entering, so that the pressure inside the food storage container is constant and always maintains a vacuum state. Using this food storage container, the air inside the food storage container can be discharged directly without the need for a separate air pump, which is convenient to use.

[0031] Specifically, the sealing assembly 38 includes a support rod 381 rotatably mounted on the lid 2, a cover plate 382 fixedly mounted on the support rod 381, a first vent 383 mounted on the cover plate 382, ​​a one-way vent valve 384 fixedly mounted in the vent, a second vent 385 mounted on the cover plate 382, ​​a cylinder 386 fixedly mounted on the lid 2, a ball bearing 387 movably mounted in the cylinder 386, and a spring 388 fixed at both ends to the cylinder 386 and the ball bearing 387 respectively.

[0032] When gas needs to be released, rotate the cover plate 382, ​​aligning the first vent 383 with the vent pipe 37 and the second vent 385 with the cylinder 386. The ball bearing 387 enters the second vent 385, limiting the cover plate 382. The air inside the food storage container is released through the one-way vent valve 384. After the venting stops, the gas will no longer enter the food storage container. Since the food storage container is not easy to open after vacuuming, when it is necessary to open the food storage container, rotate the cover plate 382 again to align the second vent 385 with the vent pipe 37. The motor 39 reverses, filling the food storage container with outside air in the same way as the venting, thus allowing the food storage container to be opened. This solves the current problem that food storage containers are inconvenient to open after vacuuming and are easily damaged.

[0033] Specifically, one end of the push plate 34 is provided with an arc-shaped rubber block 341.

[0034] An arc-shaped rubber block 341 is provided on the side of the push plate 34 near the inner wall of the circular cavity 31, so that the push plate 34 can fit tightly against the inner wall of the circular cavity 31, preventing air from escaping from the gap between the push plate 34 and the inner wall of the circular cavity 31 when the push plate 34 pushes the air, thereby improving exhaust efficiency.

[0035] Specifically, an arc-shaped surface 11 is provided between the bottom of the box body 1 and the side wall.

[0036] The curved surface 11 makes cleaning the food storage container easier and reduces the chance of bacterial growth.

[0037] Specifically, the box body 1 and the box cover 2 are threaded together.

[0038] Specifically, the sealing assembly includes a ring 41 disposed inside the lid 2 and a sealing rubber ring 42 disposed between the ring 41 and the side wall of the lid 2.

[0039] Specifically, the sealing assembly also includes a plurality of annular protrusions 43 fixedly disposed on the cover 2, and a groove 44 disposed on the sealing ring 42 and cooperating with the plurality of annular protrusions 43.

[0040] The box body 1 and the lid 2 are threaded together to seal the food storage box, and the annular protrusion 43 and the sealing ring 42 fit tightly together, making it even more difficult for outside air to enter the food storage box and maintaining the vacuum state inside the food storage box.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A constant pressure vacuum type preservation box, comprising a box body (1), a box cover (2) arranged on the box body (1), an exhaust structure (3) arranged on the box cover (2), and a sealing structure (4) arranged on the box body (1), characterized in that: The exhaust structure (3) comprises a circular cavity (31) fixed on the box cover (2), a disc (32) rotatably arranged in the circular cavity (31) and arranged eccentrically with the circular cavity (31), a rotating shaft (33) penetrating the disc (32) rotatably arranged in the circular cavity (31), a push plate (34) fixed at one end of the rotating shaft (33), a through slot (35) arranged on the disc (32), an air inlet pipe (36) arranged on the side wall of the circular cavity (31), an air outlet pipe (37) symmetrically arranged on the side wall of the circular cavity (31), a sealing assembly (38) rotatably arranged on the box cover (2), and a motor (39) fixed on the outer surface of the box cover (2) for driving the rotating shaft (33) to rotate; the rotating shaft (33) and the circular cavity (31) have the same center; the other end of the push plate (34) is movably arranged in the through slot (35).

2. The constant pressure vacuum type preservation box according to claim 1, characterized in that: The sealing assembly (38) comprises a support rod (381) rotatably arranged on the box cover (2), a cover plate (382) fixed on the support rod (381), a first air hole (383) arranged on the cover plate (382), a one-way air valve (384) fixed in the air hole, a second air hole (385) arranged on the cover plate (382), a cylinder (386) fixed on the box cover (2), a ball (387) movably arranged in the cylinder (386), and a spring (388) fixed at both ends of the cylinder (386) and the ball (387).

3. The constant pressure vacuum type preservation box according to claim 2, characterized in that: One end of the push plate (34) is provided with an arc-shaped rubber block (341).

4. The constant pressure vacuum type preservation box according to claim 3, characterized in that: An arc surface (11) is arranged between the bottom of the box body (1) and the side wall.

5. The constant pressure vacuum type preservation box according to claim 4, characterized in that: The box body (1) and the box cover (2) are screw-threadedly matched.

6. The constant pressure vacuum type preservation box according to claim 5, characterized in that: The sealing structure comprises a circular ring (41) arranged in the box cover (2) and a sealing rubber ring (42) arranged between the circular ring (41) and the side wall of the box cover (2).

7. A constant pressure vacuum type preservation box according to claim 6, wherein: The sealing structure further comprises a plurality of annular protrusions (43) fixed on the box cover (2) and a groove (44) arranged on the sealing rubber ring (42) and matched with the plurality of annular protrusions (43).

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