Device for sealing and refrigerator

Abstract

The application relates to the technical field of intelligent household appliances, for example to a device for sealing. The device comprises a box body, a box cover, a piston part, a rotating part, a first one-way valve and a second one-way valve. The box cover and the box body define a sealed storage space, and the box cover comprises a recessed part; the piston part is movably arranged in the recessed part and defines an exhaust cavity with the recessed part of the box cover; the rotating part is connected with the piston part through a corrugated slide rail structure and can drive the piston part to reciprocate in the recessed part through rotation; the first one-way valve is connected between the exhaust cavity and a space outside the box cover; and the second one-way valve is connected between the storage space and the exhaust cavity. In the application, the device for sealing can ensure good sealing when storing food, and can meet the requirement of a user for fine food storage. The application further discloses a refrigerator.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a sealing device and a refrigerator. Background Technology

[0002] Currently, with the improvement of people's living standards, the requirements for refined food storage are increasing, and the demand for subdivided spaces inside refrigerators is becoming more and more significant, especially for storing foods and items with odors. However, the existing storage boxes and fruit and vegetable drawers in refrigerators often lead to odor mixing problems due to poor sealing.

[0003] In implementing the embodiments of this disclosure, it has been found that at least the following problem exists in the related art: ensuring good airtightness when storing food in a refrigerator. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0005] This disclosure provides a sealing device and a refrigerator, which ensure good sealing performance when storing food using the sealing device, thus meeting the user's requirements for refined food storage.

[0006] In some embodiments, the sealing device includes: a housing, and further includes: a lid, a piston, a rotating part, a first one-way valve, and a second one-way valve. The lid and the housing define a sealed storage space, and the lid includes a recess; the piston is movably disposed within the recess and defines an exhaust chamber with the recess of the lid; the rotating part is connected to the piston via a corrugated slide rail structure, which allows the piston to reciprocate within the recess by rotation; the first one-way valve connects the exhaust chamber to the space outside the lid, allowing gas in the exhaust chamber to enter the space outside the lid when there is a pressure difference between the exhaust chamber and the space outside the lid; the second one-way valve connects the storage space and the exhaust chamber, allowing gas in the storage space to enter the exhaust chamber when there is a pressure difference between the storage space and the exhaust chamber.

[0007] In some embodiments, the refrigerator includes the sealing device described above.

[0008] The sealing device and refrigerator provided in this disclosure can achieve the following technical effects:

[0009] When the sealing device provided in this embodiment is used for sealing operations, the rotating part drives the piston part to move axially within the recessed part by rotating the rotating part. Since the gas in the exhaust chamber defined by the piston part and the recessed part of the cover cannot be discharged, the gas pressure in the exhaust chamber increases, leading to an increase in the pressure difference between the inside and outside of the first one-way valve. Furthermore, due to the pressure difference between the exhaust chamber and the space outside the cover, the first one-way valve connects the exhaust chamber to the space outside the cover, and the first one-way valve begins to discharge gas, allowing the gas in the exhaust chamber to enter the space outside the cover. At this time, the piston part moves axially. When the piston part stops moving, i.e., when the piston part reaches its limit position, the gas pressure in the exhaust chamber is less than atmospheric pressure, the first one-way valve stops discharging gas, and the piston part continues to move until it returns to its original position. The original position; and at this time, the air pressure in the exhaust chamber gradually decreases, causing the pressure difference between the inside and outside of the second one-way valve to increase. Since the air pressure in the sealed storage space defined by the lid and body is greater than the air pressure in the exhaust chamber, i.e., there is a pressure difference between the exhaust chamber and the storage space, the second one-way valve starts to exhaust, allowing the gas in the storage space to enter the exhaust chamber, thereby reducing the air pressure in the storage space. Under the action of external atmospheric pressure, the lid and body are pressed together to form a seal; therefore, good sealing performance is ensured when storing food in a sealed device, meeting the user's requirements for refined food storage, especially for the storage needs of odorous foods and other items in sealed devices, solving the problem that existing storage boxes, fruit and vegetable boxes and other structures often cause cross-contamination of odors due to poor sealing.

[0010] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0011] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0012] Figure 1 This is a schematic diagram of a sealing device provided in an embodiment of this disclosure;

[0013] Figure 2 This is a schematic diagram of a structure in which a rotating part and a piston part are connected, according to an embodiment of this disclosure;

[0014] Figure 3 This is a schematic diagram of another structure provided in this disclosure for connecting the rotating part and the piston part;

[0015] Figure 4 This is a schematic diagram of another sealing device provided in an embodiment of this disclosure;

[0016] Figure 5 This is a schematic diagram of another sealing device provided in an embodiment of this disclosure;

[0017] Figure 6 This is a schematic diagram of another sealing device provided in an embodiment of this disclosure;

[0018] Figure 7 This is a schematic diagram of another sealing device provided in an embodiment of this disclosure;

[0019] Figure 8 This is a schematic diagram of the pressure relief channel provided in an embodiment of this disclosure;

[0020] Figure 9 This is a schematic diagram of the structure of the pressure relief valve provided in the embodiments of this disclosure;

[0021] Figure 10 This is a schematic diagram of the limiting structure provided in the embodiments of this disclosure;

[0022] Figure 11 This is a partial structural schematic diagram of another sealing device provided in an embodiment of this disclosure;

[0023] Figure 12 This is a schematic diagram of the structure of the speed limiting component provided in the embodiments of this disclosure;

[0024] Figure 13 This is a schematic diagram of the speed-limiting wheel provided in an embodiment of this disclosure;

[0025] Figure 14 This is a schematic diagram of the toothed wheel provided in an embodiment of this disclosure;

[0026] Figure 15 This is a schematic diagram of the ratchet mechanism provided in an embodiment of this disclosure;

[0027] Figure 16 This is a schematic diagram of the refrigerator structure provided in an embodiment of this disclosure.

[0028] Figure label:

[0029] 001. Box body; 002. Storage space; 100. Box lid; 101. Recess; 102. Exhaust chamber; 103. First sealing structure; 105. Electronic tag; 106. Radio frequency isolation plate; 107. Opening; 108. First strip groove; 200. Piston part; 201. Second sealing structure; 202. Mounting groove; 203. Protruding block; 300. Rotating part; 301. First bearing; 302. Protruding handle; 400. Corrugated slide rail structure; 401. Corrugated groove; 402. Slider; 500. First one-way valve; 501. Exhaust valve spring; 502. Exhaust valve core; 503. Exhaust valve plug; 600. Second one-way valve; 601. Intake valve spring; 602. Intake valve core; 603. Intake valve plug; 700. Pressure relief channel; 701. Part 1; 702; Part 2; 800; Pressure relief valve; 801; Threaded part; 802; Restricting part; 900; Pressure relief wheel; 1000; Limiting structure; 1001; Protrusion; 1002; Recess; 1100; Timing component; 1101; Timing wheel; 1102; Knob; 1103; Dial; 1200; Energy storage component; 1201; Energy storage wheel; 1202; Energy storage Ring; 1203, Energy storage spring; 1204, Brake wheel; 1300, Speed ​​limiting component; 1301, Speed ​​limiting wheel; 1302, Toothed wheel; 1303, Speed ​​limiting spring; 1304, Speed ​​limiting bar; 1305, U-shaped groove; 1306, Protrusion; 1307, Slot; 1308, Ratchet mechanism; 1400, Rotary gear; 1500, Refrigerated space; 1600, Air duct back panel. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0035] Combination Figure 1-4 As shown, this disclosure provides a sealing device, including: a box body 001, and further including: a box cover 100, a piston part 200, a rotating part 300, a first one-way valve 500 and a second one-way valve 600. The lid 100 and the body 001 define a sealed storage space 002, and the lid 100 includes a recess 101; the piston 200 is movably disposed in the recess 101 and defines an exhaust chamber 102 with the recess 101 of the lid 100; the rotating part 300 is connected to the piston 200 by a corrugated slide rail structure 400, which can drive the piston 200 to reciprocate within the recess 101 by rotation; the first one-way valve 500 connects the exhaust chamber 102 with the space outside the lid 100, and can allow gas in the exhaust chamber 102 to enter the space outside the lid 100 when there is a pressure difference between the space outside the exhaust chamber 102 and the space outside the lid 100; the second one-way valve 600 connects the storage space 002 and the exhaust chamber 102, and can allow gas in the storage space 002 to enter the exhaust chamber 102 when there is a pressure difference between the inside of the storage space 002 and the inside of the exhaust chamber 102.

[0036] When using the sealing device provided in this embodiment, during the sealing operation, rotating the rotating part 300 drives the piston part 200 to move axially within the recess 101. Since the gas in the exhaust chamber 102 defined by the piston part 200 and the recess 101 of the cover 100 cannot be discharged, the gas pressure in the exhaust chamber 102 increases, leading to an increase in the pressure difference between the inside and outside of the first one-way valve 500. Furthermore, due to the pressure difference between the exhaust chamber 102 and the space outside the cover 100, the first one-way valve 500 connects the exhaust chamber 102 with the space outside the cover 100, and the first one-way valve 500 begins to discharge gas, allowing the gas in the exhaust chamber 102 to enter the space outside the cover 100. At this time, the piston part 200 moves axially. When the piston part 200 stops moving, i.e., when the piston part 200 reaches its limit position, the gas pressure in the exhaust chamber 102 is less than atmospheric pressure, and the first one-way valve 500 stops discharging gas. Meanwhile, the piston... Part 200 continues to move until it returns to its original position. Meanwhile, the air pressure in the exhaust chamber 102 gradually decreases, causing an increase in the pressure difference between the inside and outside of the second one-way valve 600. Since the air pressure in the sealed storage space 002 defined by the lid 100 and the body 001 is greater than the air pressure in the exhaust chamber 102 (i.e., there is a pressure difference between the exhaust chamber 102 and the storage space 002), the second one-way valve 600 begins to exhaust air, allowing gas from the storage space 002 to enter the exhaust chamber 102, thus reducing the air pressure in the storage space 002. Under the action of external atmospheric pressure, the lid 100 and the body 001 are pressed together, forming a seal. Therefore, good sealing performance is ensured when storing food in a sealed device, meeting users' requirements for refined food storage, especially for storing odorous foods and other items in sealed devices. This solves the problem of odor transfer often caused by poor sealing in existing storage boxes, fruit and vegetable boxes, and other structures.

[0037] Optionally, the first one-way valve 500 includes: an exhaust valve spring 501, an exhaust valve core 502, and an exhaust valve plug 503, with the exhaust valve spring 501 disposed between the exhaust valve core 502 and the exhaust valve plug 503. Thus, when the air pressure in the exhaust chamber 102 defined by the piston portion 200 and the recess 101 of the cover 100 increases, the pressure difference between the inner and outer sides of the exhaust valve core 502 increases. When the air pressure in the exhaust chamber 102 exceeds the elastic force of the exhaust valve spring 501, the exhaust valve core 502 moves axially, opening the exhaust passage and allowing the gas in the exhaust chamber 102 to be discharged. The piston portion 200 moves axially. When the piston portion 200 stops moving, the air pressure in the exhaust chamber 102 is less than atmospheric pressure. Under the action of the external gas and the exhaust valve spring 501, the exhaust valve core 502 returns to its original position, and the exhaust passage is closed.

[0038] Optionally, the second one-way valve 600 includes: an intake valve spring 601, an intake valve core 602, and an intake valve plug 603, with the intake valve spring 601 disposed between the intake valve core 602 and the intake valve plug 603. Thus, when the air pressure in the exhaust chamber 102 defined by the piston portion 200 and the recess 101 of the cover 100 decreases, the pressure difference between the inner and outer sides of the intake valve core 602 continuously increases. When the air pressure in the sealed storage space 002 defined by the cover 100 and the housing 001 exceeds the elastic force of the intake valve spring 601, the intake valve core 602 moves axially, the intake passage is opened, and the gas in the storage space 002 enters the exhaust chamber 102.

[0039] Optionally, the lid 100 further includes a first sealing structure 103. The lid 100 defines a sealed storage space 002 with the box body 001 through the first sealing structure 103. Thus, when there is a pressure difference between the exhaust chamber 102 and the storage space 002, the second one-way valve 600 starts to exhaust gas, allowing gas in the storage space 002 to enter the exhaust chamber 102. Therefore, during gas flow, the first sealing structure 103 can prevent gas from flowing out from the gap between the lid 100 and the storage space 002, giving the storage space 002 good airtightness. This ensures that under the action of external atmospheric pressure, the lid 100 can stably press against the box body 001 to form a seal, improving the stability and efficiency of the sealing process.

[0040] Optionally, the first sealing structure 103 can be a sealing ring. This method of using a sealing ring results in a simple structure and convenient use and maintenance.

[0041] Optionally, the piston portion 200 includes a second sealing structure 201. The piston portion 200 defines an exhaust chamber 102 through the second sealing structure 201 and the recess 101. Thus, when the rotating part 300 drives the piston part 200 to move axially within the recess 101, the second sealing structure 201 prevents gas from flowing out from the gap between the piston part 200 and the exhaust chamber 102 defined by the recess 101, giving the exhaust chamber 102 good airtightness. This prevents the gas in the exhaust chamber 102 defined by the piston part 200 and the recess 101 of the cover 100 from escaping, causing the gas pressure in the exhaust chamber 102 to rise. A stable pressure difference exists between the exhaust chamber 102 and the space outside the cover 100, which in turn causes the first one-way valve 500 to start venting. The gas in the exhaust chamber 102 enters the space outside the cover 100, and the gas pressure in the exhaust chamber 102 gradually decreases. This allows the gas in the storage space 002 to enter the exhaust chamber 102, thereby reducing the gas pressure in the storage space 002. As a result, under the action of external atmospheric pressure, the cover 100 can press against the box body 001 to form a seal, further improving the stability and efficiency of the sealing process.

[0042] Optionally, the second sealing structure 201 can be a sealing ring. This method of using a sealing ring results in a simple structure and convenient use and maintenance.

[0043] Optionally, the piston portion 200 has a mounting groove 202 recessed towards the upper side of the piston portion 200 at its bottom. This provides mounting space for the first one-way valve 500 and the second one-way valve 600, facilitating their installation. It also increases the space of the exhaust chamber 102 defined by the recess 101 of the piston portion 200 and the cover 100, thereby increasing the capacity of the exhaust chamber 102. This allows the exhaust chamber 102 to hold more gas, enabling the gas in the storage space 002 to enter the exhaust chamber 102 stably and quickly, and then exit to the outside of the cover 100 through the exhaust chamber 102. This makes the exhaust process more stable and efficient, thereby improving the stability and efficiency of the sealing process.

[0044] Optionally, the rotating part 300 is rotatably connected to the cover 100 via a first bearing 301. In this way, the first bearing 301 can better support the rotating part 300 to rotate on the cover 100, reduce the coefficient of friction of the rotating part 300 during rotation, make the rotation of the rotating part 300 smoother and more stable, and improve the stability of the rotating part 300 during rotation.

[0045] Optionally, the inner ring of the first bearing 301 is fitted onto the outer ring of the rotating part 300, and the outer ring of the first bearing 301 is fixed inside the recess 101 of the cover 100 and located at the upper end of the inner wall of the recess 101. This facilitates installation, makes the overall structure more stable, and better supports the rotation of the rotating part 300 on the cover 100, ensuring that the rotating part 300 rotates stably on the cover 100, further improving the stability of the rotating part 300 during rotation.

[0046] Optionally, one end of the rotating part 300 has a diameter smaller than that of the recessed part 101 and extends into the recessed part 101. This facilitates the installation of one end of the rotating part 300 within the recessed part 101, allowing one end of the rotating part 300 to rotate within the recessed part 101. This enables the rotating part 300 to better drive the piston part 200 to perform axial reciprocating motion within the recessed part 101, improving the stability and efficiency of the axial reciprocating motion of the piston part 200 driven by the rotating part 300 within the recessed part 101.

[0047] Optionally, the corrugated slide rail structure 400 includes a corrugated groove 401 and a slider 402. The corrugated groove 401 is disposed on the circumferential sidewall of the rotating part 300 and is connected end to end; the slider 402 is disposed on the piston part 200 and is confined within the corrugated groove 401 for sliding. Thus, when the rotating part 300 rotates, the corrugated groove 401 rotates with the rotating part 300, causing the slider 402 to move axially along the piston part 200 under the influence of the corrugated groove 401. Since the slider 402 is disposed on the piston part 200 and confined within the corrugated groove 401 for sliding, and the corrugated groove 401 is structurally connected end to end, when the slider 402 moves from a high position to a low position within the corrugated groove 401, under the sealing action of the second sealing structure 201, the exhaust chamber 10 defined by the piston part 200 and the recess 101 of the cover 100... The gas inside chamber 2 cannot be discharged, causing the gas pressure inside exhaust chamber 102 to rise. This leads to an increase in the pressure difference between the inside and outside of the first one-way valve 500. Furthermore, due to the pressure difference between exhaust chamber 102 and the space outside the cover 100, the first one-way valve 500 connects the exhaust chamber 102 with the space outside the cover 100, and the first one-way valve 500 begins to discharge gas. This allows the gas inside exhaust chamber 102 to enter the space outside the cover 100. When the gas pressure inside exhaust chamber 102 is lower than atmospheric pressure, the first one-way valve 500 stops discharging gas. When the slider 402 moves within the corrugated groove 401... During the movement from the low position to the high position, under the pulling force of the bellows groove 401, the piston 200 moves axially along with the slider 402. As the air pressure in the exhaust chamber 102 gradually decreases, the pressure difference between the inner and outer sides of the second one-way valve 600 increases. At this time, the air pressure in the sealed storage space 002 defined by the cover 100 and the body 001 is greater than the air pressure in the exhaust chamber 102, meaning there is a pressure difference between the exhaust chamber 102 and the storage space 002. The second one-way valve 600 then begins to exhaust air, allowing the gas in the storage space 002 to enter the exhaust chamber 102. Due to the sealing effect of the first sealing structure 103, the air pressure in the storage space 002 is reduced. Under the action of the external atmospheric pressure, the lid 100 and the box body 001 are pressed together to form a seal. Therefore, good sealing performance is ensured when storing food in the sealing device. Furthermore, the corrugated slide rail structure 400, which is composed of the corrugated groove 401 and the slider 402, is easy for the user to operate. The user can rotate the rotating part 300 in any direction to make the piston part 200 perform cyclic reciprocating axial movement, thereby completing the sealing process. The sealing process is more stable and efficient.

[0048] Optionally, the piston portion 200 and the recessed portion 101 are connected by a convex block 203, and the convex block 203 is slidably disposed on the inner wall of the recessed portion 101. In this way, during the rotation of the rotating portion 300, the piston portion 200 will not rotate with the rotating portion 300, thereby preventing the slider 402 from rotating with the rotating portion 300. Therefore, the slider 402 will only move from a high position to a low position or from a low position to a high position within the corrugated groove 401 on the rotating portion 300, thereby causing the piston portion 200 to perform axial reciprocating motion within the recessed portion 101, improving the stability of the piston portion 200's axial reciprocating motion within the recessed portion 101.

[0049] Optionally, the inner wall of the recess 101 is provided with a first strip groove 108 arranged along its axial direction, and the first strip groove 108 is correspondingly arranged with the convex block 203. The convex block 203 can reciprocate along the axial direction of the recess 101 within the first strip groove 108. In this way, by correspondingly arranging the first strip groove 108 and the convex block 203, misalignment can be prevented when the first strip groove 108 and the convex block 203 are connected, making the connection between the convex block 203 and the first strip groove 108 tighter. During the rotation of the rotating part 300, it can be ensured that the convex block 203 will not rotate with the rotating part 300, thereby preventing the piston part 200 from rotating with the rotating part 300. As a result, the piston part 200 will only move axially within the recess 101, thereby improving the stability of the sealing process.

[0050] Optionally, a raised handle 302 is provided on the upper side of the rotating part 300. This makes it easier for the user to rotate the rotating part 300 by means of the raised handle 302, making it more convenient for the user to use. In addition, the raised handle 302 is easy for the user to operate and is not easy to slip out of the user's hand, thereby improving the stability of the rotating part 300 when it drives the piston part 200 to move axially.

[0051] Combination Figure 5-6 As shown, in some optional embodiments, the lid 100 includes an electronic tag 105 and an RF isolation plate 106. The electronic tag 105 includes an identification pattern and is disposed on the lid 100. The RF isolation plate 106 is rotatably disposed on the lid 100 and has an opening 107. When the RF isolation plate 106 is rotated to a first position, the opening 107 exposes the identification pattern and RF signal. In this way, by rotating the RF isolation plate 106, the user can see icons of various ingredients at the opening 107. The user selects the corresponding ingredient icon according to the ingredients they put in. Since the RF isolation plate 106 only allows RF signals to pass through the opening 107, it can shield the RF signals of other electronic tags 105, thereby identifying the type of ingredients that the user has put into the sealed device. The user can then classify, store, and manage the ingredients in different areas.

[0052] Optionally, the electronic tag 105 can be written to and read from using an RFID (Radio Frequency Identification) reader, with the identification pattern being an icon of the food item. Thus, RFID technology, a type of automatic identification technology, uses wireless radio frequency for non-contact, two-way data communication, reading and writing to the recording medium (electronic tag 105 or RFID card) to achieve target identification and data exchange. An RFID system is a non-contact automatic identification system that automatically identifies target objects and acquires relevant data through radio frequency signals. It consists of the electronic tag 105, a reader, and a computer network. The RFID system uses the electronic tag 105 to identify objects. The electronic tag 105 exchanges data with the reader via radio waves. The reader can transmit read / write commands from the host to the electronic tag 105 and then transmit the data returned by the electronic tag 105 back to the host. The host's data exchange and management system is responsible for storing, managing, and controlling the data information of the electronic tag 105.

[0053] Combination Figure 7-15 As shown in the figure, the sealing device provided in this embodiment further includes a pressure relief channel 700 and a pressure relief valve 800. The pressure relief channel 700 is disposed on the cover 100 and connects the inner and outer sides of the cover 100; the pressure relief valve 800 is movably disposed within the pressure relief channel 700. Thus, by utilizing the cooperative structure of the pressure relief valve 800 and the pressure relief channel 700, the pressure relief valve 800 can be used to open or close the pressure relief channel 700, thereby placing the sealing device in a de-sealed or sealed state, making it easier to control the sealing state.

[0054] Optionally, the pressure relief valve 800 is installed in the pressure relief channel 700 via the pressure relief wheel 900. The pressure relief valve 800 is threadedly connected to the pressure relief wheel 900. When the pressure relief valve 800 is connected to the pressure relief wheel 900, the pressure relief channel 700 is closed. When the pressure relief valve 800 is disconnected from the pressure relief wheel 900, the pressure relief channel 700 is opened. In this way, the user can tighten the pressure relief valve 800 into the pressure relief channel 700, and the sealing device is in a sealed state. When the seal is released, the pressure relief wheel 900 rotates, causing the pressure relief valve 800, which is threadedly connected to the pressure relief wheel 900, to move upward in the pressure relief channel 700, thereby disengaging the pressure relief valve 800 from the pressure relief wheel 900 and opening the pressure relief channel 700. At this time, the air inside the sealing device is connected to the outside air, and its internal air pressure is the same as the external atmospheric pressure, thus releasing the sealing state of the sealing device without requiring the user to release the seal manually. This makes it easier for the user to take out the food inside the sealing device or store the food inside the sealing device, and makes it more convenient to control the sealing state.

[0055] Optionally, the pressure relief channel 700 includes a first part 701 and a second part 702. The first part 701 is disposed below the second part 702 and the first part 701 and the second part 702 are coaxially arranged. The diameter of the second part 702 is larger than the diameter of the first part 701. The pressure relief valve 800 is partially movably inserted into the first part 701, and the pressure relief wheel 900 is installed in the second part 702. In this way, the pressure relief channel 700 is divided into the first part 701 and the second part 702, which facilitates the installation of the pressure relief valve 800 and the pressure relief wheel 900.

[0056] Optionally, a second bearing is provided on the bottom side wall of the second part 702, and the pressure relief wheel 900 is mounted on the second bearing. This prevents the pressure relief wheel 900 from shifting when rotating within the second part 702, thereby improving the stability of the pressure relief wheel 900 when rotating within the second part 702.

[0057] Optionally, the pressure relief valve 800 is provided with a threaded portion 801, which is connected to the pressure relief wheel 900. The pressure relief valve 800 is also connected to the pressure relief channel 700 via a limiting structure 1000, which restricts the rotation of the pressure relief valve 800. Thus, by limiting the rotation of the pressure relief valve 800 through the limiting structure 1000, the pressure relief valve 800 will not rotate with the pressure relief wheel 900. Furthermore, by connecting the pressure relief wheel 900 to the threaded portion 801 on the pressure relief valve 800, the pressure relief wheel 900 rotates on the threaded portion 801, causing the pressure relief valve 800 to move upwards or downwards as a whole, thereby improving the stability of the pressure relief valve 800 during movement.

[0058] Optionally, the limiting structure 1000 includes a protrusion 1001 and a recess 1002. The protrusion 1001 is disposed within the pressure relief channel 700; the recess 1002 is disposed on the pressure relief valve 800. Thus, by cooperating with the protrusion 1001 within the pressure relief channel 700 and the recess 1002 on the pressure relief valve 800, the protrusion 1001 within the pressure relief channel 700 is fixed within the recess 1002 on the pressure relief valve 800, preventing the pressure relief valve 800 from rotating with the pressure relief wheel 900, thereby achieving the purpose of fixing the pressure relief valve 800.

[0059] Optionally, a limiting part 802 is provided on the lower side of the threaded portion 801, and the recess 1002 is a second strip-shaped groove provided on the limiting part 802. In this way, the limiting part 802 is located on the lower side of the threaded portion 801, which not only ensures that the limiting part 802 does not affect the rotation of the pressure relief wheel 900 on the threaded portion 801, but also facilitates the insertion of the pressure relief valve 800 into the pressure relief channel 700 through the limiting part 802. The limiting structure 1000 formed by the recess 1002 and the protrusion 1001 in the pressure relief channel 700 fixes the pressure relief valve 800 in the pressure relief channel 700, thereby achieving the purpose of fixing the pressure relief valve 800 and preventing the pressure relief valve 800 from rotating with the pressure relief wheel 900, thus improving the stability when the pressure relief wheel 900 drives the pressure relief valve 800 to move in the pressure relief channel 700.

[0060] Optionally, the protrusion 1001 is a strip-shaped protrusion provided on the inner wall of the pressure relief channel 700. In this way, the limiting part 802 of the pressure relief valve 800 can pass through the pressure relief wheel 900 and enter the pressure relief channel 700, and cooperate with the second strip-shaped groove on the limiting part 802 to form a limiting structure 1000 that prevents the pressure relief valve 800 from rotating with the pressure relief wheel 900, thereby improving the stability of the pressure relief valve 800 in the pressure relief channel 700.

[0061] Optionally, the second strip groove is arranged axially along the pressure relief valve 800, and the strip protrusion is arranged axially along the pressure relief channel 700, with the strip protrusion corresponding to the second strip groove. This prevents misalignment when the protrusion 1001 in the pressure relief channel 700 connects to the recess 1002 on the pressure relief valve 800, which would result in an unstable connection and fail to secure the pressure relief valve 800. By corresponding the second strip groove on the pressure relief valve 800 to the strip protrusion in the pressure relief channel 700, the strip protrusion can enter the second strip groove when the pressure relief valve 800 enters the pressure relief channel 700, preventing the pressure relief valve 800 from rotating with the pressure relief wheel 900, thereby achieving the purpose of securing the pressure relief valve 800.

[0062] Optionally, the sealing device further includes a timing component 1100 and an energy storage component 1200. The timing component 1100 is connected to the pressure relief wheel 900 and is capable of indicating the duration of the seal; the energy storage component 1200 is connected to the timing component 1100 and stores energy when the timing component 1100 rotates in a first rotational direction, and can drive the timing component 1100 to rotate in a second rotational direction by releasing energy. In this way, by rotating the timing component 1100 to set the sealing time, and simultaneously driving the pressure relief wheel 900 to rotate, the pressure relief wheel 900 drives the pressure relief valve 800 into the pressure relief channel 700, so that the pressure relief valve 800 and the pressure relief wheel 900 are connected, thereby putting the sealing device in a sealed state. By setting the sealing time through the timing component 1100, the user can know the duration of the sealing device and the storage time of the food inside the sealing device according to the sealing duration indicated by the timing component 1100. At the same time as the sealing device is in a sealed state, the timing component 1100 drives the energy storage component 1200 to perform an energy storage process, so that the energy stored in the energy storage component 1200 is related to the sealing time set by the timing component 1100. The user only needs to set the sealing time according to the usage requirements. The timing process does not require electricity, making it convenient for the user to know the sealing duration without using electricity.

[0063] Optionally, the pressure relief wheel 900 includes a rim and a hub. The rim has teeth for connection to the timing component 1100, and the hub has internal threads for threaded connection to the pressure relief valve 800. Thus, the connection between the timing component 1100 and the pressure relief wheel 900 allows the wheel to rotate, disengaging the pressure relief valve 800 from the threaded connection. This makes the process of the timing component 1100 driving the pressure relief wheel 900 to rotate and the process of the pressure relief wheel 900 moving the pressure relief valve 800 more stable.

[0064] Optionally, a notch is provided on the circumference of the second part 702, and the notch is oriented towards the timing component 1100. This facilitates the connection between the pressure relief wheel 900 inside the second part 702 and the timing component 1100, making the rotation between the pressure relief wheel 900 and the timing component 1100 more stable.

[0065] Optionally, the timing component 1100 includes: a timing wheel 1101, a knob 1102, and a dial 1103. The timing wheel 1101 is connected to the energy storage component 1200; the knob 1102 is disposed on the timing wheel 1101; and the dial 1103 is disposed on the cover 100 and is located around the timing wheel 1101. In this way, the user can control the duration of the sealing state of the sealing device through the timing component 1100, and control the storage time of the food inside the sealing device according to the sealing duration indicated by the timing component 1100. In use, the timing wheel 1101 is rotated by turning the knob 1102 on the timing wheel 1101, and the sealing time is indicated by the set dial 1103. Through the linkage between the timing wheel 1101 and the energy storage component 1200, the rotation of the timing wheel 1101 drives the energy storage component 1200 to store energy. After the set time of the timing wheel 1101 ends, that is, after the energy storage component 1200 has completed energy storage, the energy storage component 1200 provides a power source for the timing wheel 1101 to drive the timing wheel 1101 to rotate. The energy stored by the energy storage component 1200 is related to the timing duration. It is only necessary to set the sealing time according to the user's needs. The entire timing process does not require electricity, making it more efficient and energy-saving.

[0066] Optionally, the pressure relief valve 800 includes a hollow cavity and a rubber plug. The hollow cavity is connected to the pressure relief channel 700, and the rubber plug is movably inserted into the hollow cavity. Thus, when the user removes the stored item from the sealing device during the timing period, simply pulling the rubber plug allows external gas to enter the sealing device through the hollow cavity. At this point, the internal and external air pressures are equal, allowing the lid 100 to be opened and the item removed. The pressure relief wheel 900 remains engaged with the timing component 1100, and the timing continues. For subsequent use, simply press the rubber plug into the hollow cavity.

[0067] Optionally, the timing wheel 1101 is connected to the pressure relief wheel 900. Thus, by rotating the timing wheel 1101 to adjust the duration of the sealing state, before selecting the timing time, the pressure relief valve 800 is placed in the pressure relief channel 700 and connected to the pressure relief wheel 900. At this time, rotating the timing wheel 1101 drives the pressure relief wheel 900 to rotate. During the rotation of the pressure relief wheel 900, it drives the pressure relief valve 800, which is threadedly connected to it, to move downwards, so that the pressure relief valve 800 and the pressure relief wheel 900 are in a connected state, allowing the pressure relief valve 800 to rotate into the pressure relief channel 700. After selecting the timing time, the timing wheel 1101 continues to drive the pressure relief wheel 900 to rotate. At this time, the rotation direction of the timing wheel 1101 and the pressure relief wheel 900 is opposite to the rotation direction before selecting the timing time. The reverse rotation of the pressure relief wheel 900 causes the pressure relief valve 800, which is threadedly connected to it, to move upwards within the pressure relief channel 700, thereby releasing the pressure. The pressure relief valve 800 is disconnected from the threaded connection with the pressure relief wheel 900, thereby opening the pressure relief channel 700. At this time, the air inside the sealing device is connected to the outside air, and its internal air pressure is the same as the external atmospheric pressure. The sealing device is released from its sealing state. The timing wheel 1101's timing duration is related to the number of rotations of the pressure relief wheel 900. For example, when the timing wheel 1101 is set to a timing duration of 5 hours at the start of the timing, the pressure relief wheel 900 will rotate 10 times. During the 10 rotations of the pressure relief wheel 900, the pressure relief wheel 900 drives the pressure relief valve 800 connected to it to enter the pressure relief channel 700. After the timing is completed, during the process of releasing the seal, the pressure relief wheel 900 will rotate 10 times in the opposite direction, causing the pressure relief valve 800 to disengage from the pressure relief channel 700, thus releasing the sealing state of the sealing device.

[0068] Furthermore, it is worth noting that before inserting the pressure relief valve 800 into the pressure relief channel 700, the timing wheel 1101 can be rotated a set distance, and then the pressure relief valve 800 can be passed through the pressure relief wheel 900 and inserted into the pressure relief channel 700. Then, the timing wheel 1101 can be rotated to start setting the sealing time, and the timing wheel 1101 drives the pressure relief wheel 900 to rotate, so that the pressure relief wheel 900 and the pressure relief valve 800 are in a connected state, thereby closing the pressure relief channel 700. Thus, during the unsealing process, the timing wheel 1101 drives the pressure relief wheel 900 to rotate, causing the pressure relief valve 800, which is threadedly connected to it, to move upward within the pressure relief channel 700. Since the timing wheel 1101 is rotated a set distance before sealing, the rotation of the timing wheel 1101 during the unsealing process can disengage the pressure relief valve 800 from the pressure relief wheel 900, thereby opening the pressure relief channel 700. Furthermore, the set distance of rotation of the timing wheel 1101 is sufficient to ensure that the rotation of the pressure relief wheel 900 can drive the pressure relief valve 800 to disengage from its threaded connection during the unsealing process, thereby opening the pressure relief channel 700.

[0069] Optionally, the energy storage assembly 1200 includes: an energy storage wheel 1201, an energy storage ring 1202, and an energy storage spring 1203. The energy storage wheel 1201 is connected to the timing knob 1102; the energy storage ring 1202 is sleeved on the outer ring of the energy storage wheel 1201 and fixed to the cover 100; one end of the energy storage spring 1203 is connected to the energy storage wheel 1201, and the other end is connected to the energy storage ring 1202. In this way, by rotating the timing wheel 1101 to select the timing time, the timing wheel 1101 drives the energy storage wheel 1201 to rotate. The energy storage wheel 1201 and the energy storage ring 1202 are connected by the energy storage spring 1203. During the rotation of the energy storage wheel 1201, since the energy storage ring 1202 is fixed on the cover 100 and cannot rotate, the energy storage wheel 1201 and the energy storage ring 1202 rotate relative to each other, causing the energy storage spring 1203 to deform, thereby storing energy in the energy storage spring 1203. The energy stored in the energy storage spring 1203 is related to the rotation of the timing wheel 1101. For example, when the timing wheel 1101 rotates one revolution, the energy stored in the energy storage spring 1203 can be used to drive the timing wheel 1101 to rotate one revolution, improving the stability of the linkage between the timing wheel 1101 and the energy storage wheel 1201, and ensuring the stable operation of the timing process.

[0070] Optionally, both the energy storage wheel 1201 and the pressure relief wheel 900 are connected to the timing wheel 1101. Thus, during the rotation of the timing wheel 1101, it drives the energy storage wheel 1201 to rotate while simultaneously rotating the pressure relief wheel 900. This allows the energy storage wheel 1201 to store energy, and simultaneously, the timing wheel 1101 drives the pressure relief wheel 900 to rotate, connecting it to the pressure relief valve 800. At this time, the pressure relief valve 800 rotates into the pressure relief channel 700, which is closed. After stopping the rotation of the timing wheel 1101 (i.e., after the sealing time is set), the energy storage wheel 1201, acting as the driving wheel, drives the timing wheel 1101 to rotate. The timing wheel 1101 then drives the connected pressure relief wheel 900 to rotate, disengaging the pressure relief valve 800 from the threaded connection with the pressure relief wheel 900. This opens the pressure relief channel 700, releasing the sealing device. The entire timing process requires no electricity, making it more energy-efficient and effective.

[0071] Optionally, the energy storage assembly 1200 includes a brake wheel 1204. One end of the brake wheel 1204 is connected to the cover 100, and the other end is connected to the energy storage ring 1202, which can fix the energy storage ring 1202. In this way, the energy storage assembly 1200 is connected to the cover 100 through the brake wheel 1204, and the brake wheel 1204 is connected to the energy storage ring 1202 of the energy storage assembly 1200. The brake wheel 1204 restricts the rotation of the energy storage ring 1202. When the energy storage wheel 1201 rotates, the energy storage ring 1202 cannot rotate, so that the energy storage wheel 1201 and the energy storage ring 1202 rotate relative to each other, thereby deforming the energy storage spring 1203 and storing energy in the energy storage spring 1203. This improves the stability of the energy storage spring 1203 during the energy storage process, and the energy storage ring 1202 is fixed to the cover 100 through the brake wheel 1204, which facilitates disassembly and maintenance.

[0072] Optionally, the sealing device further includes a speed limiting component 1300. The speed limiting component 1300 is connected to the timing component 1100 or the energy storage component 1200 via a rotating gear 1400, and can limit the rotational speed of the timing component 1100 or the energy storage component 1200. This prevents the timing component 1100 or the energy storage component 1200 from rotating too fast, improves the stability of the rotation of the timing component 1100 or the energy storage component 1200, and makes the rotation of the timing component 1100 or the energy storage component 1200 smoother.

[0073] Optionally, the speed limiting component 1300 is connected to the timing component 1100 via a rotating gear 1400. Thus, when the timing component 1100 drives the energy storage component 1200 to rotate, and the energy storage component 1200 is fully charged, during the energy release process, the energy storage wheel 1201 rotates as the driving wheel. Due to the large initial energy of the energy storage spring 1203, the energy storage wheel 1201 rotates too fast, causing the timing component 1100 to rotate rapidly. At this time, the speed limiting component 1300 can adjust the rotational speed of the timing component 1100 by controlling the rotational speed of the rotating gear 1400, thereby reducing the speed of the timing component 1100 and improving the stability of its rotation.

[0074] Optionally, the speed limiting component 1300 is connected to the energy storage component 1200 via a rotating gear 1400. Thus, during the rotation of the energy storage component 1200, it first performs an energy storage process and then a energy release process. When the energy storage component 1200 is releasing energy, the energy storage wheel 1201 rotates as the driving wheel. Due to the large initial energy of the energy storage spring 1203, the energy storage wheel 1201 rotates too fast. At this time, the speed limiting component 1300 can adjust the rotational speed of the energy storage component 1200 by controlling the rotational speed of the rotating gear 1400, thereby reducing the speed of the energy storage component 1200. The speed limiting component 1300 allows the energy storage component 1200 to rotate smoothly, improving the stability of the rotation process.

[0075] Optionally, the speed limiting assembly 1300 includes: a speed limiting wheel 1301, a toothed wheel 1302, a speed limiting spring 1303, and a speed limiting rod 1304. The speed limiting wheel 1301 is coaxially arranged with the rotating gear 1400, and a U-shaped groove 1305 is provided around the periphery of the speed limiting wheel 1301; the toothed wheel 1302 is sleeved on the outer ring of the speed limiting wheel 1301 and fixed to the cover 100; the speed limiting spring 1303 is disposed in the U-shaped groove 1305; and the speed limiting rod 1304 is connected to the speed limiting spring 1303. Thus, when the rotating gear 1400 rotates at a relatively high speed, the speed limiting wheel 1301 also rotates rapidly. Under the action of centrifugal force, the speed limiting rod 1304 connected to the speed limiting spring 1303 will overcome the elastic force of the speed limiting spring 1303, causing one end of the speed limiting rod 1304 to move towards the toothed wheel 1302 and connect with the toothed wheel 1302, causing the speed limiting wheel 1301 to stop rotating and its speed to zero, thereby stopping the rotating gear 1400 from rotating. At this time, under the action of the restoring force of the speed limiting spring 1303, the speed limiting rod 1304 rebounds and separates from the toothed wheel 1302, allowing the rotation to continue. Due to the sudden increase in speed, the speed limiting rod 1304 will again overcome the elastic force of the speed limiting spring 1303 and connect with the toothed wheel 1302, allowing the speed limiting wheel 1301 to rotate intermittently and evenly, thereby achieving the purpose of limiting the rotational speed of the rotating gear 1400.

[0076] Optionally, one or more U-shaped grooves 1305 are provided. In this way, one or more corresponding speed limiting springs 1303 and speed limiting rods 1304 are also provided, so that the speed limiting rods 1304 provided in the U-shaped grooves 1305 can be connected to the toothed wheel 1302 from one or more directions, better fixing the speed limiting wheel 1301, stopping the speed limiting wheel 1301 from rotating, improving the stability of the speed limiting process, and improving the speed limiting efficiency of the speed limiting component 1300.

[0077] Optionally, the inner wall of the toothed wheel 1302 is provided with multiple protrusions 1306, and a groove 1307 is formed between the multiple protrusions 1306 to fix the speed limiting rod 1304. In this way, the speed limiting rod 1304 is fixed by the groove 1307. When the speed limiting wheel 1301 rotates rapidly, under the action of centrifugal force, the speed limiting rod 1304 will overcome the elastic force of the speed limiting spring 1303, move towards the inner wall of the toothed wheel 1302, and engage with the groove 1307 on the inner wall of the toothed wheel 1302, causing the speed limiting wheel 1301 to stop rotating. At this time, under the action of the restoring force of the speed limiting spring 1303, the speed limiting rod 1304 rebounds and disengages from the inner wall of the toothed wheel 1302. The speed limiter 1304 disengages from the slot 1307, allowing rotation to continue. Due to the sudden increase in speed, the speed limiter 1304 will again overcome the elastic force of the speed limiter spring 1303 and enter the slot 1307 on the inner wall of the toothed wheel 1302. Therefore, by setting multiple slots 1307, the speed limiter 1304 can be continuously inserted into and disengaged from the slot 1307. Through this process, the speed limiter wheel 1301 can rotate intermittently and evenly, thereby achieving the purpose of speed limiting.

[0078] Optionally, the speed limiting component 1300 further includes a ratchet mechanism 1308. The ratchet mechanism 1308 is disposed between the speed limiting wheel 1301 and the rotating gear 1400, and is coaxially arranged with the speed limiting wheel 1301. In this way, the speed limiting component 1300 has unidirectional speed limiting capability, which can both limit the rotational speed of the timing wheel 1101 or the energy storage wheel 1201, and ensure that the speed limiting component 1300 does not affect the rotation of the timing wheel 1101 or the energy storage wheel 1201 during the speed limiting process, thereby improving the stability of the rotation process of the timing wheel 1101 or the energy storage wheel 1201.

[0079] Combination Figure 16 As shown, this embodiment also provides a refrigerator, including any of the above-mentioned sealing devices.

[0080] Using the refrigerator and sealing device provided in this embodiment of the present disclosure, when the sealing device is used for sealing operation, the rotating part 300 drives the piston part 200 to move axially within the recess 101. Since the gas in the exhaust chamber 102 defined by the piston part 200 and the recess 101 of the cover 100 cannot be discharged, the gas pressure in the exhaust chamber 102 increases, leading to an increase in the pressure difference between the inside and outside of the first one-way valve 500. Furthermore, due to the pressure difference between the exhaust chamber 102 and the space outside the cover 100, the first one-way valve 500 connects the exhaust chamber 102 with the space outside the cover 100, and the first one-way valve 500 begins to discharge gas, allowing the gas in the exhaust chamber 102 to enter the space outside the cover 100. At this time, the piston part 200 moves axially. When the piston part 200 stops moving, i.e., when the piston part 200 reaches its limit position, the gas pressure in the exhaust chamber 102 is less than atmospheric pressure, and the first one-way valve 500 stops. The exhaust is stopped, while the piston 200 continues to move until it returns to its original position. At this time, the air pressure in the exhaust chamber 102 gradually decreases, causing the pressure difference between the inside and outside of the second one-way valve 600 to increase. Since the air pressure in the sealed storage space 002 defined by the lid 100 and the box body 001 is greater than the air pressure in the exhaust chamber 102, i.e., there is a pressure difference between the exhaust chamber 102 and the storage space 002, the second one-way valve 600 starts to exhaust, allowing the gas in the storage space 002 to enter the exhaust chamber 102, thereby reducing the air pressure in the storage space 002. Under the action of external atmospheric pressure, the lid 100 and the box body 001 are pressed together to form a seal. Therefore, when storing food in a sealed device, good sealing performance is ensured, meeting the user's requirements for refined food storage, especially for the storage needs of odorous foods and other items in sealed devices, solving the problem that existing storage boxes, fruit and vegetable boxes and other structures often cause cross-contamination of odors due to poor sealing.

[0081] Optionally, the refrigerator includes a refrigerator compartment 1500 and an air duct back panel 1600. The air duct back panel 1600 is located within the refrigerator compartment 1500 and integrates an RFID reader capable of reading information about the food placed inside. Thus, based on RFID technology, food can be identified, stored, and managed, and each time the user operates the aforementioned sealing device, the information is updated in the electronic tag 105.

[0082] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A sealing device, comprising a housing (001), characterized in that, Also includes: The lid (100) defines a sealed storage space (002) with the box body (001), and the lid (100) includes a recess (101). The piston part (200) is movably disposed in the recess (101) and defines an exhaust chamber (102) with the recess (101) of the cover (100). The rotating part (300) is connected to the piston part (200) via a corrugated slide rail structure (400), and can drive the piston part (200) to reciprocate within the recess (101) by rotation; The first one-way valve (500) connects the exhaust chamber (102) with the space outside the cover (100), and can allow the gas in the exhaust chamber (102) to enter the space outside the cover (100) when there is a pressure difference between the exhaust chamber (102) and the space outside the cover (100); The second one-way valve (600) connects the storage space (002) and the exhaust chamber (102), and can allow the gas in the storage space (002) to enter the exhaust chamber (102) when there is a pressure difference between the storage space (002) and the exhaust chamber (102); A pressure relief channel (700) is provided on the cover (100) and connects the inside and outside sides of the cover (100); A pressure relief valve (800) is movably disposed within the pressure relief channel (700). The pressure relief valve (800) is installed within the pressure relief channel (700) via a pressure relief wheel (900). The pressure relief valve (800) is threadedly connected to the pressure relief wheel (900). When the pressure relief valve (800) is connected to the pressure relief wheel (900), the pressure relief channel (700) is closed. When the pressure relief valve (800) is disengaged from the pressure relief wheel (900), the pressure relief channel (700) is opened. 0) includes a hollow cavity and a rubber plug, the hollow cavity being connected to a pressure relief channel (700), the rubber plug being movably inserted into the hollow cavity; a timing component (1100) and an energy storage component (1200), the timing component (1100) being connected to a pressure relief wheel (900) and being able to indicate the duration of sealing; the energy storage component (1200) being connected to the timing component (1100) and storing energy when the timing component (1100) rotates in a first rotational direction, and being able to drive the timing component (1100) to rotate in a second rotational direction by releasing energy; The pressure relief wheel (900) includes a rim and a hub; the rim is provided with teeth that can connect to the timing assembly (1100), and the hub is provided with internal threads that can connect to the pressure relief valve (800); the timing assembly (1100) includes a timing wheel (1101), a knob (1102), and a dial (1103); the timing wheel (1101) is connected to the energy storage assembly (1200); the knob (1102) is located on the timing wheel (1101); the dial (1103) is located on the cover (100) and is positioned on the timing wheel (1101). The circumference of the timing wheel (1101); the timing wheel (1101) is rotatably connected to the pressure relief wheel (900); the energy storage assembly (1200) includes: an energy storage wheel (1201), an energy storage ring (1202) and an energy storage spring (1203), the energy storage ring (1202) is sleeved on the outer ring of the energy storage wheel (1201) and fixed on the box cover (100); one end of the energy storage spring (1203) is connected to the energy storage wheel (1201) and the other end is connected to the energy storage ring (1202); the energy storage wheel (1201) and the pressure relief wheel (900) are both rotatably connected to the timing wheel (1101).

2. The apparatus according to claim 1, characterized in that, The lid (100) also includes: A first sealing structure (103) is provided, wherein the lid (100) defines a sealed storage space (002) with the box body (001) via the first sealing structure (103).

3. The apparatus according to claim 1, characterized in that, The piston portion (200) includes: The second sealing structure (201) defines the exhaust chamber (102) by the piston portion (200) and the recess (101).

4. The apparatus according to claim 1, characterized in that, The rotating part (300) is rotatably connected to the cover (100) via a first bearing (301).

5. The apparatus according to claim 1, characterized in that, One end of the rotating part (300) has a smaller diameter than the diameter of the recessed part (101) and extends into the recessed part (101).

6. The apparatus according to any one of claims 1 to 5, characterized in that, The corrugated slide rail structure (400) includes: A corrugated groove (401) is provided on the periphery of the rotating part (300) and is connected end to end; A slider (402) is disposed on the piston portion (200) and is limited to sliding within the corrugated groove (401).

7. The apparatus according to any one of claims 1 to 5, characterized in that, The rotating part (300) has a raised handle (302) on its upper side.

8. The apparatus according to any one of claims 1 to 5, characterized in that, The lid (100) includes: An electronic tag (105) including an identification pattern is disposed on the box cover (100); An RF isolation plate (106) is rotatably mounted on the cover (100). An opening (107) is provided on the RF isolation plate (106). When the RF isolation plate (106) is rotated to the first position, the opening (107) exposes the marking pattern and the RF signal.

9. The apparatus according to any one of claims 1 to 5, characterized in that, Also includes: Speed ​​limiting component (1300) is connected to timing component (1100) or energy storage component (1200) via rotating gear (1400) and can limit the rotation speed of timing component (1100) or energy storage component (1200).

10. A refrigerator, characterized in that, Includes the sealing device as described in any one of claims 1 to 9.

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