A fresh-keeping cup for vacuum fresh-keeping

Abstract

This utility model discloses a food preservation cup for vacuum preservation, including a cup body and a lid. The cup body has a receiving cavity for holding individual food preservation cups. The lid integrates a vacuum generating component, including a small vacuum pump and a one-way valve, which can evacuate the receiving cavity to effectively inhibit food oxidation and spoilage. The receiving cavity also has an ice preservation component composed of multiple ice preservation compartments with built-in refrigerant, which surround to form a preservation zone and directly contact the food preservation cup to provide a continuous low temperature. The cup body has a double-layer vacuum insulation structure. The lid also has a temperature monitoring device and a display screen to display the internal temperature in real time, and the vacuuming process can be automatically controlled by a control module. It integrates vacuum preservation, active cooling and long-term insulation, has a compact structure, is easy to carry, and can effectively extend the shelf life of food.

Description

Technical Field

[0001] This utility model relates to the field of thermos cup technology, and more specifically, it relates to a food preservation cup for vacuum preservation. Background Technology

[0002] The primary function of existing insulated cups is heat preservation, that is, maintaining the temperature of the liquid inside the cup. However, for foods that need to be preserved, such as salads and cooked food, traditional insulated cups cannot provide a vacuum environment, and the food is prone to oxidation and spoilage. For example, in the preservation of infant formula, the temperature requirements are high. It is not only required to maintain a constant temperature, but also to keep the temperature within a certain low temperature range. Existing insulated cups cannot achieve the above functions, resulting in low adaptability in some application environments. Therefore, based on the above application scenarios, a thermos cup with both vacuum preservation and heat preservation functions is designed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a preservation cup for vacuum preservation, so as to solve the problems existing in the above-mentioned background technology.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a preservation cup for vacuum preservation, comprising a cup body and a cup lid adapted to the cup body; a receiving cavity is provided in the cup body; the receiving cavity can accommodate at least one preservation cup; a cup mouth is provided on the top of the cup body; the cup mouth is connected to the receiving cavity; the cup lid is detachably connected to the cup body and is located at the cup mouth; a vacuum generating component for making the receiving cavity a vacuum state is provided inside the cup lid.

[0005] Optionally, the vacuum generating assembly includes: a small vacuum pump and a one-way valve for evacuating a vacuum; the small vacuum pump is detachably disposed within the inner cavity of the cup lid; an air extraction port is provided on the side of the cup lid near the receiving cavity; the air extraction port can communicate with the receiving cavity; the one-way valve is disposed at the air extraction port; the air extraction end of the small vacuum pump is connected to the one-way valve; an air outlet is provided on the side of the cup lid away from the receiving cavity; the air outlet end of the small vacuum pump is connected to the air outlet.

[0006] Optionally, the receiving cavity is further provided with a temperature-controlled chilling component; the chilling component includes several chilling compartments; refrigerant is added to the chilling compartments; the several chilling compartments are arranged at intervals in the receiving cavity; the several chilling compartments are spliced ​​together to form a preservation zone for temperature-controlled preservation; the preservation cup can be placed in the preservation zone; when the preservation cup is placed in the preservation zone, the preservation cup abuts against the chilling compartments.

[0007] Optionally, the cup body is composed of an outer shell and an inner shell; the outer shell and the inner shell are fixedly connected; the cavity between the outer shell and the inner shell is in a vacuum state; the receiving cavity is disposed inside the inner shell.

[0008] Optionally, the cup lid is also provided with a temperature monitoring device for detecting the real-time temperature inside the receiving cavity; a display screen is also provided on the outer side of the cup lid for displaying the real-time temperature data detected by the temperature monitoring device.

[0009] Optionally, a control module is also provided inside the cavity of the cup lid; the control module is electrically connected to the vacuum generating component.

[0010] Optionally, a sealing rubber ring is provided at the connection between the cup lid and the cup body.

[0011] Optionally, the outer side of the cup body is also provided with a handle for easy lifting; the handle is rotatably connected to the cup body.

[0012] In summary, this utility model has the following beneficial effects: 1. Through the set vacuum generating component, the container cavity inside the cup is actively evacuated to a vacuum state, effectively isolating oxygen and inhibiting the growth of aerobic microorganisms, thereby preventing food oxidation and spoilage and achieving freshness locking; at the same time, the cup body adopts a vacuum insulation structure composed of an outer shell and an inner shell, which can effectively block the heat exchange between the inside and outside, and can maintain the initial temperature for a long time for foods that need to be kept cold or warm.

[0013] 2. By setting up a chilling component inside the container cavity of the cup, users can add refrigerant to the chilling compartment; this component can release cold energy for a longer period of time in a vacuum environment, and through direct contact with the preservation cup, it can efficiently cool down the food inside and maintain a low temperature, achieving a stable low temperature and oxygen-deficient environment similar to a small portable refrigerator, which can more effectively inhibit bacterial growth and extend the freshness and edibility of food.

[0014] 3. The cup's internal cavity contains several independent food storage cups, separating food from the main cup. Users can directly remove the food-containing cups for consumption without emptying them, making it convenient and quick. Simultaneously, the food storage cups are easy to clean individually, preventing food residue from remaining in the complex structure, thus ensuring greater hygiene. Furthermore, users can carry multiple pre-filled food storage cups to replace those containing different foods, enriching the usage scenarios and further increasing adaptability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the internal assembly structure of the cup body of this utility model; Figure 3 This is a cross-sectional schematic diagram of the main structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the cup lid of this utility model.

[0016] In the diagram: 1. Cup body; 11. Outer shell; 12. Inner shell; 2. Cup lid; 21. Display screen; 3. Receiving cavity; 4. Food preservation cup; 5. Cup mouth; 6. Vacuum generating component; 61. Small vacuum pump; 62. One-way valve; 63. Air extraction port; 64. Air outlet; 7. Freshness preservation component; 71. Freshness preservation compartment; 72. Freshness preservation area; 8. Control module; 9. Sealing rubber ring; 10. Handle. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This utility model provides a preservation cup for vacuum preservation, such as... Figure 1 As shown, the device includes a cup body 1 and a cup lid 2 adapted to the cup body 1; the cup body 1 has a receiving cavity 3; the receiving cavity 3 can accommodate at least one food preservation cup 4; the top of the cup body 1 has a cup opening 5; the cup opening 5 is connected to the receiving cavity 3; the cup lid 2 is detachably connected to the cup body 1 and is located at the cup opening 5; the cup lid 2 has a vacuum generating component 6 for creating a vacuum state in the receiving cavity 3.

[0022] Specifically, as shown in the figure, the cup body 1 is a cylindrical double-layer stainless steel structure. The space formed inside is a receiving cavity 3, which is used to hold several cylindrical preservation cups 4 made of food-grade PP plastic; the opening at the top of the cup body 1 is the cup mouth 5; the cup lid 2 is screwed into the outer wall of the cup mouth 5 of the cup body 1 through the threads on the inner wall, so as to achieve a detachable connection; the vacuum generating component 6 is a miniature electric vacuum pump, which is fixed in the inner cavity of the cup lid 2; when the cup lid 2 is screwed on the cup body 1, the vacuum pump is started, and the air in the receiving cavity 3 can be extracted through its suction end, thereby realizing the vacuum preservation function.

[0023] Furthermore, the vacuum generating assembly 6 includes: a small vacuum pump 61 for evacuating a vacuum and a one-way valve 62; the small vacuum pump 61 is detachably disposed within the inner cavity of the cup lid 2; an air extraction port 63 is provided on the side of the cup lid 2 near the receiving cavity 3; the air extraction port 63 can communicate with the receiving cavity 3; the one-way valve 62 is disposed at the air extraction port 63; the air extraction end of the small vacuum pump 61 is connected to the one-way valve 62; an air outlet 64 is provided on the side of the cup lid 2 away from the receiving cavity 3; the air outlet end of the small vacuum pump 61 is connected to the air outlet 64.

[0024] Specifically, an air extraction port 63 is provided at the center of the inner side of the cup lid 2; a one-way valve 62 is installed at the air extraction port 63, which only allows gas to be extracted from the receiving cavity 3 to the outside, preventing reverse flow and preventing external air from flowing back into the receiving cavity 3 after the vacuum pump stops working, thus ensuring the maintenance of the vacuum state; a small vacuum pump 61, which can be fixed by a snap-fit, is installed in the inner cavity of the cup lid 2, and its extraction end can be tightly connected to the outlet end of the one-way valve 62 through a silicone tube; an air outlet 64 is provided at the top of the cup lid 2, and the air outlet end of the small vacuum pump 61 is directly opposite the air outlet 64; during operation, the vacuum pump extracts the air in the receiving cavity 3 from the air extraction port 63, overcomes the resistance of the one-way valve 62, and then discharges the air from the air outlet 64.

[0025] To elaborate further, vacuum preservation is not absolute vacuum. The standard atmospheric pressure is about 101 kPa. Household refrigeration and preservation usually reduce the pressure to 10–50 kPa. At this time, more than 80% of the air in the containment cavity 3 inside the cup body 1 has been expelled, which can meet daily needs. Moreover, the strength of ordinary materials can meet the negative pressure generated, and the vacuum preservation effect can be achieved without the use of special materials.

[0026] Furthermore, the receiving cavity 3 is also provided with a temperature-controlled chilling component 7; the chilling component 7 includes a plurality of chilling compartments 71; refrigerant is added to the chilling compartments 71; the plurality of chilling compartments 71 are arranged at intervals in the receiving cavity 3; the plurality of chilling compartments 71 are spliced ​​together to form a preservation zone 72 for temperature-controlled preservation; the preservation cup 4 can be placed in the preservation zone 72; when the preservation cup 4 is placed in the preservation zone 72, the preservation cup 4 abuts against the chilling compartments 71.

[0027] Specifically, as shown in the figure, four annular ice-preserving compartments 71 are evenly fixed along the inner wall of the cup body 1 from the outside to the inside, forming the ice-preserving component 7. The ice-preserving compartments 71 can be spliced ​​together to define the central cylindrical space as the preservation area 72. The outer diameter of the preservation cup 4 matches the diameter of the preservation area 72. When the preservation cup 4 is placed in, its outer wall is in close contact with the inner wall of the ice-preserving compartments 71. Before use, the user can fill the ice-preserving compartments 71 with water to freeze, or directly put in the pre-made gel refrigerant. Through direct physical contact, the cold energy of the refrigerant is continuously transferred to the preservation cup 4, providing a low-temperature environment for the food inside.

[0028] Furthermore, the cup body 1 is composed of an outer shell 11 and an inner shell 12; the outer shell 11 and the inner shell 12 are fixedly connected; the cavity between the outer shell 11 and the inner shell 12 is in a vacuum state; the receiving cavity 3 is disposed inside the inner shell 12.

[0029] Specifically, the cup body 1 is formed by a stainless steel outer shell 11 and a stainless steel inner shell 12, which are fixedly connected by a cup mouth 5 and a cup bottom edge rolling process; between the outer shell 11 and the inner shell 12, a vacuum interlayer is formed by vacuuming and sealing; this vacuum interlayer can effectively block the transfer of heat.

[0030] Furthermore, the cup lid 2 is also provided with a temperature monitoring device for detecting the real-time temperature inside the receiving cavity 3; a display screen 21 is also provided on the outer side of the cup lid 2 for displaying the real-time temperature data detected by the temperature monitoring device.

[0031] Specifically, a digital temperature monitoring device, preferably a DS18B20 temperature sensor, is embedded inside the lid 2. Its temperature probe is exposed inside the lid 2. When the lid 2 is closed, the probe is located in the top space of the cavity 3 and is used to detect the real-time temperature inside the cavity 3. An LCD display screen 21 is installed on the outer wall of the top surface of the lid 2. The display screen 21 is connected to the temperature sensor through wires and can display the temperature value detected by the sensor in real time, so that users can intuitively understand the temperature status inside the container.

[0032] Furthermore, a control module 8 is also provided inside the inner cavity of the cup lid 2; the control module 8 is electrically connected to the vacuum generating component 6.

[0033] Specifically, a PCB board is fixedly installed in the inner cavity of the cup lid 2, on which an STM8 series microcontroller is integrated as a control module 8. The control module 8 is electrically connected to the small vacuum pump 61 in the vacuum generating assembly 6 via wires. A touch switch is provided on the outside of the cup lid 2. After the user presses the start button, the signal is transmitted to the control module 8, and the control module 8 then drives the vacuum pump to run for a preset time and then automatically stops, thereby realizing the automated control of the process of evacuating the containment cavity 3.

[0034] Furthermore, a sealing rubber ring 9 is provided at the connection between the cup lid 2 and the cup body 1.

[0035] Specifically, to achieve a reliable seal, an annular groove is formed on the end face of the cup mouth 5 of the cup body 1; a sealing rubber ring 9 made of food-grade silicone is embedded in the groove; when the cup lid 2 is screwed onto the cup body 1, the inner top surface of the cup lid 2 will press the sealing rubber ring 9, causing it to deform, thereby tightly filling all gaps between the cup lid 2 and the cup mouth 5, ensuring the airtightness of the receiving cavity 3.

[0036] Furthermore, a handle 10 for easy lifting is provided on the outer side of the cup body 1; the handle 10 is rotatably connected to the cup body 1.

[0037] Specifically, a U-shaped handle 10 is installed on the outer side of the cup body 1 via a pair of symmetrical pivot seats; the handle 10 can rotate around the pivot between the vertical use position and the horizontal storage position, which does not take up space and makes it convenient for users to lift and carry the entire thermos cup.

[0038] In practice, for example, when going out, carry fruit salad and baby formula to keep them fresh and chilled. First, the user separates the cup body 1, the lid 2, and the individual preservation cups 4. Several ice cube trays 71 are removed from the receiving cavity 3 of the cup body 1, filled with water up to the marked line, and then placed in the freezer until the water inside is completely frozen. After that, the frozen ice cube trays 71 are placed back into the receiving cavity 3, and the ice cube trays 71 are joined together. At this time, several ice cube trays 71 form a surrounding, low-temperature preservation zone 72 on the inner wall and bottom of the receiving cavity 3. The prepared fruit salad and baby milk products are placed into different preservation cups 4, and then two preservation cups 4 are placed in the preservation zone 72 formed by the ice cube trays 71. At this time, the outer walls of the two preservation cups 4 are in close contact with the surrounding ice cube trays 71. Then, the user aligns the cup lid 2 with the cup opening 5 at the top of the cup body 1 and tightens it via the threads. During this process, the inner side of the cup lid 2 presses against the sealing rubber ring 9, causing it to deform elastically and completely seal the cup opening 5, ensuring the airtightness of the receiving cavity 3. The user presses the start button on the outside of the cup lid 2, and the button signal is sent to the control module 8 inside the cup lid 2. The control module 8 then starts the small vacuum pump 61, which begins to work, generating negative pressure from its suction end. This negative pressure is transmitted to the suction port 63 through the pipe. The one-way valve 62 is opened to overcome its spring resistance. The air in the receiving cavity 3 is sequentially passed through the air extraction port 63, the one-way valve 62, and the vacuum pump, and finally discharged from the air outlet 64 at the top of the lid 2. In this embodiment, the preferred working time is 30 seconds. Once the time is up, the small vacuum pump 61 automatically stops working. At this time, the one-way valve 62 immediately closes under the action of the internal spring, effectively preventing external air from flowing back into the receiving cavity 3, which has formed a negative pressure. Thus, the receiving cavity 3 has reached the predetermined vacuum state. Throughout the entire heat preservation and freshness-locking process, the temperature monitoring device embedded inside the cup lid 2 continuously monitors the real-time temperature inside the containment cavity 3. The detected data is transmitted to the display screen 21 on the outside of the cup lid 2 via wires; the user can clearly see the real-time temperature of the containment cavity 3 displayed on the display screen 21. When a user needs to take out food, the inside of the container 3 is a vacuum while the outside is atmospheric pressure. The lid 2 is subjected to atmospheric pressure and requires a little force to rotate to break the seal. After the lid 2 is opened, air enters the container 3 and the pressure is restored to balance. The user can directly take out the food preservation cup 4 by hand and enjoy fresh food. The independent design of several food preservation cups 4 makes it extremely convenient to take out and clean them.

[0039] This utility model discloses a vacuum-sealed food preservation cup. Through a vacuum generating component 6, the cup body 1 actively creates a vacuum in its containing cavity 3, effectively isolating oxygen and inhibiting the growth of aerobic microorganisms, thereby preventing food oxidation and spoilage, and achieving food preservation. Simultaneously, the cup body 1 employs a vacuum insulation structure composed of an outer shell 11 and an inner shell 12, effectively blocking heat exchange between the inside and outside, maintaining the initial temperature for a long time for both cold and warm foods. A chilling component 7 is installed in the containing cavity 3 of the cup body 1, allowing users to add refrigerant to the chilling compartment 71. This component releases cold energy more persistently in a vacuum environment and, through direct contact with the preservation cup 4, efficiently cools and maintains the internal food at a low temperature, achieving a stable low-temperature, oxygen-deficient environment similar to a small portable refrigerator. This more effectively inhibits bacterial growth and extends the freshness and edibility of food. The containing cavity 3 of the cup body 1 contains several independent preservation cups 4, separating the food from the main cup body 1. Users can directly remove the food-containing food cup 4 for consumption without pouring it out, which is convenient and quick. At the same time, the food-containing food cup 4 is easy to clean separately, avoiding food residue residue in the complex structure, making it more hygienic. In addition, users can carry multiple food-containing food-containing food cups 4 to replace them as needed, enriching the usage scenarios and further increasing the adaptability to different scenarios.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A preservation cup for vacuum sealing, characterized in that, Includes a cup body and a cup lid adapted to the cup body; The cup body is provided with a receiving cavity; the receiving cavity can accommodate at least one food preservation cup. The cup body has a cup opening at the top; the cup opening is connected to the receiving cavity; the cup lid is detachably connected to the cup body and is located at the cup opening; the cup lid is provided with a vacuum generating component for making the receiving cavity a vacuum state.

2. A preservation cup for vacuum preservation according to claim 1, characterized in that, The vacuum generating assembly includes: a small vacuum pump and a one-way valve for evacuating the vacuum. The miniature vacuum pump is detachably installed inside the inner cavity of the cup lid; an air extraction port is provided on the side of the cup lid near the receiving cavity; the air extraction port can communicate with the receiving cavity; a one-way valve is provided at the air extraction port; the air extraction end of the miniature vacuum pump is connected to the one-way valve. An air outlet is provided on the side of the cup lid away from the receiving cavity; the air outlet of the small vacuum pump is connected to the air outlet.

3. A preservation cup for vacuum preservation according to claim 1, characterized in that, The cavity is also equipped with a temperature-controlled chilling component; the chilling component includes several chilling compartments; and refrigerant is added to the chilling compartments. Several of the aforementioned ice-preserving compartments are arranged at intervals within the receiving cavity; the aforementioned ice-preserving compartments are joined together to form a preservation zone for maintaining a constant temperature and freshness; the preservation cup can be placed within the preservation zone; when the preservation cup is placed within the preservation zone, the preservation cup abuts against the ice-preserving compartments.

4. A preservation cup for vacuum preservation according to claim 1, characterized in that, The cup body is composed of an outer shell and an inner shell; the outer shell and the inner shell are fixedly connected; the cavity between the outer shell and the inner shell is in a vacuum state; the receiving cavity is located inside the inner shell.

5. A preservation cup for vacuum preservation according to claim 1, characterized in that, The cup lid is also equipped with a temperature monitoring device for detecting the real-time temperature inside the cavity. A display screen is also provided on the outer side of the cup lid to display the real-time temperature data detected by the temperature monitoring device.

6. A preservation cup for vacuum preservation according to any one of claims 1-5, characterized in that, A control module is also provided inside the inner cavity of the cup lid; the control module is electrically connected to the vacuum generating component.

7. A preservation cup for vacuum preservation according to claim 1, characterized in that, A sealing rubber ring is provided at the connection between the cup lid and the cup body.

8. A preservation cup for vacuum preservation according to claim 1, characterized in that, The outer side of the cup body is also provided with a handle for easy lifting; the handle is rotatably connected to the cup body.

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