A venting method for fermented pre-prepared dishes and a sealing cover thereof

Abstract

The invention relates to the technical field of sealing of fermented pre-prepared dishes, and comprises a sealing cover body, a sealing ring and an inner sleeve. The sealing cover body consists of a cover edge, a cover ring, a cover body, a base and an exhaust column. The cover ring is a circular ring structure, one end of the cover ring is provided with a cover edge, the other end of the cover ring is provided with a cover body, the cover body is provided with a base, the base is provided with an exhaust column, the cover ring on one side of the cover edge is provided with a sealing ring, an inner sleeve is provided in the exhaust column of the base, the top end of the inner sleeve is provided with an exhaust port, and the exhaust port is used to discharge the gas in the exhaust column to the outside; the invention has strong practicality, adopts one-piece molding and encapsulation technology, achieves one-piece molding of plane sealing and breathable layer, does not need to manually cover with silicone tube, and is easy to operate, prevents the foam of pre-prepared dishes from flowing into the middle of the bottle from both sides when the bottle is shaken or inverted, resulting in clogging of the air holes, and can stabilize the pressure in the bottle, further ensuring the taste of the fermented pre-prepared dishes.

Description

Technical Field

[0001] The invention relates to the technical field of sealing of fermented pre-prepared dishes, in particular to an exhaust method for fermented pre-prepared dishes and a sealing cover thereof. Background Art

[0002] As is known to all, fermented pre-prepared vegetables are also commonly called kimchi. The usual method is to make kimchi in jars, but it needs to be sealed during the production process. When sealing, water is put into the groove at the opening of the jar using the special structure of the jar to seal the jar with water. However, with the improvement of production technology, this special structure of the jar is gradually replaced by bottles, or sealed by double lids. This not only has a good sealing effect, but also makes transportation easier. The market's requirements for adding preservatives to pre-prepared vegetables are becoming more and more stringent, and even require that no preservatives be added to pre-prepared vegetables. Therefore, the sealing performance requirements for bottles in the production process of pre-prepared foods are further increased, and fermented pre-prepared foods will also produce fermentation bloating. If the food packaging bottle is simply sealed but cannot discharge the fermentation gas, there will be a safety problem of bottle explosion in severe cases; pre-prepared fermented foods have another feature, that is, some fermentation gas must be stored in the sealed bottle, which will make the pre-prepared food fresher and chewier. It is required that the sealed packaging bottle cannot allow any gas to enter, and the fermentation gas generated must be properly stored in the bottle and can only be released when it reaches a certain pressure, so as to ensure taste and safety.

[0003] The company's previously applied patent application publication number is: CN109178627A. It is found that there are still the following two problems in the existing use environment: First, the ventilation principle adopts the bicycle tire air-filled principle, that is, a silicone tube is used to cover a column on the inner cover to achieve the effect of only exhausting but not inhaling air. This product has been used in the market for 10 years, and there is a very serious problem, which is inconvenience. The silicone tube must be covered with the column of the plastic bottle cap every time, which increases a lot of manpower, and the tightness of the silicone tube covering the breathable column is difficult to control, and the stability is not high. If the silicone tube is loose, it is easy to leak, causing the bottle to be blocked, and when it is inverted, leakage will also occur. Moreover, the fermentation gas in the bottle cannot be retained, resulting in the food being unpalatable. If the silicone tube is tightened, the exhaust is not smooth. In addition, as soon as the bottle is inverted, the air vent is easily blocked, resulting in poor ventilation, so there is no exhaust effect. Therefore, how to make a sealing cover that meets the requirements of fermented pre-prepared food bottles is a huge problem. Therefore, the present invention proposes an exhaust method and a sealing cover for fermented pre-prepared food. Summary of the Invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a venting method for fermented pre-prepared dishes and a sealing cover thereof. The present invention achieves the purpose of sealing the bottle mouth of the fermented pre-prepared dishes by arranging a sealing ring and an inner sleeve on the sealing cover body.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A method for exhausting fermented pre-prepared dishes and a sealing cover thereof, comprising a sealing cover body, a sealing ring and an inner sleeve. The sealing cover body is composed of a cover edge, a cover ring, a cover body, a base and an exhaust column. The cover ring is a circular ring structure, one end of the cover ring is provided with a cover edge, the other end of the cover ring is provided with a cover body, the cover body is provided with a base, the base is provided with an exhaust column, a sealing ring is provided on one side of the cover edge of the cover ring, an inner sleeve is provided in the exhaust column of the base, and the top end of the inner sleeve is provided with an exhaust port, and the exhaust port is used to discharge the gas in the exhaust column to the outside.

[0007] The cover edge, cover ring, cover body, base and exhaust column are an integrated structure, and the cover edge, cover ring, cover body, base and exhaust column are made of food-grade plastic material.

[0008] The cover edge is a circular ring structure and is used to limit the sealing cover body.

[0009] The cover ring is a circular ring structure, which is connected to the inner ring wall of the cover edge. A fastening ring is provided on the cover ring, and there are at least two fastening rings. The fastening ring is used to support the cover ring. The fastening ring is embedded in the cover ring or the fastening ring protrudes toward the inner ring wall of the cover ring. An injection molding cylinder is provided on the cover ring. The injection molding cylinder is a cylindrical or prismatic structure, and the injection molding cylinder protrudes toward the inner ring wall of the cover ring.

[0010] The cover body is a flat structure or a curved structure, a base is provided in the middle of the cover body, an exhaust column is provided on the base, the exhaust column protrudes toward the edge of the cover, a slot is provided in the exhaust column, an exhaust hole is provided on the top of the exhaust column, an inner sleeve matching the slot is provided in the slot of the exhaust column, and the exhaust port of the inner sleeve is adapted to the exhaust hole of the exhaust column.

[0011] The base protrudes in the opposite direction of the exhaust column protrusion, and a groove is formed at the connection between the cover body, the base and the exhaust column. The groove is consistent with the direction of the base protrusion. At least one positioning hole is provided on the base, and the positioning hole is used to determine the position of the base and the bottle mouth.

[0012] The base is a stepped structure, and the height of the stepped structure of the base decreases from the inside to the outside.

[0013] The sealing ring and the inner sleeve are both made of rubber and plastic soft rubber materials.

[0014] The sealing ring is a circular structure with a sealing strip on the sealing ring. The sealing strip is arranged on the inner ring of the sealing ring and embedded in the injection molding cylinder of the cover ring. The sealing ring is used to seal the gap between the cover edge on the sealing cover body and the bottle body.

[0015] The inner sleeve consists of an inner sleeve head, an inner sleeve body and a limiting head. The inner sleeve body is provided with a limiting head, and the limiting head is provided with an inner sleeve head. The inner sleeve body of the inner sleeve is inserted into the slot of the exhaust column, and the inner sleeve head of the inner sleeve passes through the exhaust hole at the top of the exhaust column. The limiting heads are stuck on the exhaust columns on both sides of the exhaust hole, and the inner sleeve body fits against the inner wall of the exhaust column.

[0016] The venting method for fermented pre-prepared dishes and the sealing cover thereof described in the present invention include a sealing cover body, a sealing ring and an inner sleeve. The sealing ring and the inner sleeve are arranged on the sealing cover body to achieve the purpose of sealing the bottle mouth of the fermented pre-prepared dishes. The present invention has strong practicality and adopts an integrated molding encapsulation technology. The planar sealing layer and the breathable layer of the breathable inner cover of the plastic bottle are combined with the plastic inner cover through a soft rubber encapsulation technology to achieve the integrated molding of the planar sealing and the breathable layer. It has high stability and does not require manual silicone tube installation, which is more convenient. It prevents the foam of the pre-prepared dishes from flowing into the middle of the bottle from both sides when the bottle is shaken or inverted, resulting in clogging of the vent holes. It can also achieve the effect of stabilizing the pressure in the bottle, further ensuring the taste of the fermented pre-prepared dishes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view of the sealing cover body of the present invention;

[0018] Figure 2 This is a bottom view of the sealing cover body of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the inner sleeve of the present invention;

[0022] In the figure: 1. Cover edge; 2. Groove; 3. Injection cylinder; 4. Exhaust hole; 5. Exhaust column; 6. Cover body; 7. Positioning hole; 8. Base; 9. Inner sleeve; 10. Slot; 11. Sealing ring; 12. Sealing strip; 13. Cover ring; 14. Fastening ring; 15. Inner sleeve head; 16. Limiting head; 17. Inner sleeve body. DETAILED DESCRIPTION

[0023] The present invention can be explained in detail by the following examples, the purpose of which is to disclose the present invention and to protect all technical improvements within the scope of the present invention.

[0024] Combined with attachment Figures 1 to 5 The exhaust method for fermented pre-prepared dishes and its sealing cover include a sealing cover body, a sealing ring 11 and an inner sleeve 9. The sealing cover body is composed of a cover edge 1, a cover ring 13, a cover body 6, a base 8 and an exhaust column 5. The cover ring 13 is a circular structure. One end of the cover ring 13 is provided with a cover edge 1, and the other end of the cover ring 13 is provided with a cover body 6. The cover body 6 is provided with a base 8, and the base 8 is provided with an exhaust column 5. A sealing ring 11 is provided on the cover ring 13 on one side of the cover edge 1. The exhaust column 5 of the base 5 is provided with an inner sleeve 9, and the top of the inner sleeve 9 is provided with an exhaust port, which is used to discharge the gas in the exhaust column 5 to the outside.

[0025] The cover edge 1, cover ring 13, cover body 6, base 8 and exhaust column 5 are an integrated structure, and the cover edge 1, cover ring 13, cover body 6, base 8 and exhaust column 5 are made of food-grade plastic material.

[0026] The cover edge 1 is a circular ring structure, and the cover edge 1 is used to limit the sealing cover body.

[0027] The cover ring 13 is a circular ring structure, which is connected to the inner ring wall of the cover edge 1. A fastening ring 14 is provided on the cover ring 13. There are at least two fastening rings 14. The fastening ring 14 is used to support the cover ring 13. The fastening ring 14 is embedded in the cover ring 13 or the fastening ring 14 protrudes toward the inner ring wall of the cover ring 13. An injection cylinder 3 is provided on the cover ring 13. The injection cylinder 3 is a cylindrical or prismatic structure, and the injection cylinder 3 protrudes toward the inner ring wall of the cover ring 13.

[0028] The cover body 6 is a planar structure or a curved structure. A base 8 is provided in the middle of the cover body 6. An exhaust column 5 is provided on the base 8. The exhaust column 5 protrudes toward the cover edge 1. A slot 10 is provided in the exhaust column 5. An exhaust hole 4 is provided on the top of the exhaust column 5. An inner sleeve 9 matching the slot 10 is provided in the slot 10 of the exhaust column 5. The exhaust port of the inner sleeve 9 is adapted to the exhaust hole 4 of the exhaust column 5.

[0029] The base 8 protrudes in the direction opposite to the protrusion of the exhaust column 5, and a groove 2 is formed at the connection between the cover body 6, the base 8 and the exhaust column 5. The groove 2 is consistent with the direction of the protrusion of the base 8. At least one positioning hole 7 is provided on the base 8, and the positioning hole 7 is used to determine the position of the base 8 and the bottle mouth.

[0030] The base 8 is a stepped structure, and the height of the stepped structure of the base 8 decreases from the inside to the outside.

[0031] The sealing ring 11 and the inner sleeve 9 are both made of rubber and plastic soft rubber materials.

[0032] The sealing ring 11 is a circular structure, and a sealing strip 12 is provided on the sealing ring 11. The sealing strip 12 is arranged on the inner ring of the sealing ring 11 and embedded in the injection molding cylinder 3 of the cover ring 13. The sealing ring 11 is used to seal the gap between the cover edge 1 on the sealing cover body and the bottle body.

[0033] The inner sleeve 9 consists of an inner sleeve head 15, an inner sleeve body 17 and a limit head 16. The inner sleeve body 17 is provided with a limit head 16, and the limit head 16 is provided with an inner sleeve head 15. The inner sleeve body 17 of the inner sleeve 9 is inserted into the slot 10 of the exhaust column 5, and the inner sleeve head 15 of the inner sleeve 9 passes through the exhaust hole 4 at the top of the exhaust column 5. The limit head 16 is stuck on the exhaust column 5 on both sides of the exhaust hole 4, and the inner sleeve body 17 fits with the inner wall of the exhaust column 5.

[0034] In Example 1, a venting method for fermented pre-prepared dishes and a sealing cover thereof are described. When in use, a sealing ring 11 is provided on the cover ring 13, and the sealing strip 12 on the sealing ring 11 is embedded in the injection molding cylinder 3 on the cover ring 13. The outer side of such a cover ring 13 is a whole circular ring structure, which is more conducive to the sealing of the sealing cover to the bottle mouth. In addition to reinforcing the cover ring 13, the fastening ring 14 on the cover ring 13 can also be provided with a sealing ring 11 outside the fastening ring 14. In this way, a double sealing effect can be achieved, which plays a very important role in preventing gas leakage.

[0035] In Example 2, a venting method for fermented pre-prepared dishes and a sealing cover thereof are described, wherein the cover 6 is a curved surface structure or a flat surface structure. In actual applications, the flat surface structure of the cover 6 can basically meet the requirements of sealing the bottle body and the bottle mouth. However, the structures corresponding to different types of fermented pre-prepared dishes are also different. When sealing hard fermented pre-prepared dishes, such as radish and cucumber, a cover 6 that protrudes into the bottle is used, which can more effectively seal the bottle mouth of the bottle. At the same time, such a structure can make the gas have a double-helix airflow in the bottle, and this airflow makes the taste of hard fermented pre-prepared dishes more crisp. When sealing soft fermented pre-prepared dishes, such as kelp and cabbage, a cover 6 that protrudes outward from the bottle is used, which can make the fermented gas flow in a circular shape, which can more effectively lock the moisture in the fermented pre-prepared dishes, making the taste fuller and richer.

[0036] Example 3, the exhaust method for fermented pre-prepared dishes and the sealing cover thereof, the base 8 is divided into three structures, the first is a flat structure, that is, in the sealed state, the bottom of the base 8 is flush with the bottle mouth, the second is a stepped structure, and the stepped structure of the base is further divided into a stepped structure toward the inside of the bottle body and a stepped structure toward the outside of the bottle body. The main function of these three structures is to prevent liquid retention and leakage.

[0037] Example 4, the exhaust method for fermented pre-prepared dishes and its sealing cover, the inner sleeve 9 adopts a conical structure, the inner sleeve is completely matched with the groove in the exhaust column 5, so that the gas can only be discharged from the inner sleeve 9 to the outside, and the conical inner sleeve 9 can ensure that the other gases are discharged in an orderly manner according to the set air pressure, thereby ensuring sufficient fermentation gas in the bottle. When the pressure of the fermentation gas in the bottle is too high, it will be discharged from the exhaust port on the inner sleeve head 15 on the inner sleeve 9, preventing the bottle from exploding. At the same time, the size of the exhaust port can be set according to different types of fermented pre-prepared dishes, ensuring sufficient fermentation gas in the bottle while sealing.

[0038] In Example 5, the exhaust method and sealing cover for fermented pre-prepared dishes are described. The injection molding cylinder 3 facilitates the convenience of manufacturing the sealing cover body, which makes it easier to make the sealing cover body an integrated structure. The positioning hole 7 on the base 8 on the sealing cover body can effectively correct the position of the sealing cover body at the bottle mouth, which is more conducive to the sealing of the bottle mouth by the sealing cover body.

[0039] Example 6, a venting method for fermented pre-prepared dishes and a sealing cover thereof, the venting method includes: a venting method during the fermentation period and a venting method during the use period. The venting method during the fermentation period is as follows: S1, selecting a sealing cover with a different type of cover ring 13 according to the size of the bottle mouth and the material of the bottle body, and then filling the sealing cover body with the sealing ring 11, the sealing strip 12 and the inner sleeve 9, so that the filling effect is such that the gas in the bottle can only be discharged through the exhaust port on the inner sleeve 9 and the external air cannot enter through the exhaust port on the inner sleeve 9;

[0040] S2, select a sealing cap body with different structures according to the type of fermented pre-prepared food, which can achieve better sealing while also ensuring the taste of the fermented pre-prepared food and further protecting the bottle body;

[0041] S3, selecting a sealing cover body with a base having different structures according to the type of fermented pre-prepared dish;

[0042] S4, selecting a sealing cover body with a different structure according to the type of fermented pre-prepared dish;

[0043] S5. After the bottle is sealed according to the above steps, the prepared food will gradually generate fermentation gas during the fermentation process. This gas will be generated slowly, and when the gas reaches a certain pressure, it will be discharged through the exhaust port on the sealing cap. After the gas is discharged, the bottle will maintain a negative pressure state. At this time, whether the bottle is inverted or shaken, the liquid in the bottle will not leak out, which is also a guarantee of no leakage.

[0044] S6, exhausting the pre-prepared food during the fermentation period according to the above steps, which is mainly used to prevent the leakage of fermentation gas in the bottle, prevent air outside the bottle from entering the bottle, and prevent the bottle from bursting;

[0045] S7. After the above steps, the exhaust method during use is performed. During use, the bottle body is first turned upside down so that the bottle mouth faces downward, and the other gases in the bottle body flow to the bottom of the bottle body. In this way, the sealing cover body is slowly opened. After taking out the required pre-prepared dishes, the sealing cover body is covered on the bottle mouth from below when the bottle body is turned upside down, thereby preventing the leakage of fermentation gas. When the bottle body is straightened, the pre-prepared dishes in the bottle body fall to the bottom of the bottle again, and the fermentation gas returns to the upper part of the bottle body, thereby ensuring the sufficiency of fermentation gas in the bottle body to the greatest extent. At the same time, due to the effect of the base 8, the inner sleeve 9 is not easy to be blocked, further ensuring the sealing time and the taste of the pre-prepared dishes.

[0046] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred embodiments, there are many methods and approaches to implement the technical solution. The above is only a preferred embodiment of the present invention. However, those skilled in the art should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these are within the scope of protection of the present invention.

Claims

1. A method for venting a sealed lid for fermented pre-prepared dishes, characterized by: The exhaust method includes: a fermentation period exhaust method and a use period exhaust method. The fermentation period exhaust method is as follows: S1, selecting a sealing cap with a different type of cover ring according to the size of the bottle mouth and the material of the bottle body, and then filling the sealing cap body with the sealing ring, the sealing strip and the inner sleeve, so that the gas in the bottle can only be discharged through the exhaust port on the inner sleeve and the external air cannot enter through the exhaust port on the inner sleeve; S2, select a sealing cap body with different structures according to the type of fermented pre-prepared food, which can achieve better sealing while also ensuring the taste of the fermented pre-prepared food and further protecting the bottle body; S3, selecting a sealing cover body with a base having different structures according to the type of fermented pre-prepared dish; S4, selecting a sealing cover body with a different structure according to the type of fermented pre-prepared dish; S5. After the bottle is sealed according to the above steps, the prepared food will gradually generate fermentation gas during the fermentation process. This gas will be generated slowly, and when the gas reaches a certain pressure, it will be discharged through the exhaust port on the sealing cap. After the gas is discharged, the bottle will maintain a negative pressure state. At this time, whether the bottle is inverted or shaken, the liquid in the bottle will not leak out, which is also a guarantee of no leakage. S6, exhausting the pre-prepared food during the fermentation period according to the above steps, which is mainly used to prevent the leakage of fermentation gas in the bottle, prevent air outside the bottle from entering the bottle, and prevent the bottle from bursting; S7. After the above steps, the exhaust method during use is performed. During use, the bottle body is first turned upside down so that the bottle mouth faces downward, so that the gas in the bottle body flows to the bottom of the bottle body, and the sealing cover body is slowly opened. After taking out the required pre-prepared dishes, the sealing cover body is covered on the bottle mouth from below when the bottle body is turned upside down, thereby preventing the leakage of fermentation gas. When the bottle body is straightened, the pre-prepared dishes in the bottle body fall to the bottom of the bottle again, and the fermentation gas returns to the upper part of the bottle body, thereby ensuring the sufficiency of fermentation gas in the bottle body to the greatest extent. At the same time, due to the effect of the base, the inner sleeve is not easy to be blocked, further ensuring the sealing time and the taste of the pre-prepared dishes.

2. The sealing cover for fermented pre-prepared dishes according to the sealing cover venting method of claim 1 comprises a sealing cover body, a sealing ring and an inner sleeve, wherein the sealing cover body is composed of a cover edge, a cover ring, a cover body, a base and an exhaust column, and the cover ring is an annular structure, with a cover edge provided at one end of the cover ring and a cover body provided at the other end thereof, and is characterized in that: The cover body is provided with a base, an exhaust column is provided on the base, a sealing ring is provided on the cover ring on one side of the cover edge, an inner sleeve is provided in the exhaust column of the base, and an exhaust port is provided at the top of the inner sleeve. The exhaust port is used to discharge the gas in the exhaust column to the outside.

3. The sealing cover for fermented pre-prepared dishes according to claim 2, wherein: The cover edge, cover ring, cover body, base and exhaust column are an integrated structure, and the cover edge, cover ring, cover body, base and exhaust column are made of food-grade plastic material.

4. The sealing cover for fermented pre-prepared dishes according to claim 3 is characterized by: The cover edge is a circular ring structure and is used to limit the sealing cover body.

5. The sealing cover for fermented pre-prepared dishes according to claim 4 is characterized in that: The cover ring is a circular ring structure, which is connected to the inner ring wall of the cover edge. A fastening ring is provided on the cover ring, and there are at least two fastening rings. The fastening ring is used to support the cover ring. The fastening ring is embedded in the cover ring or the fastening ring protrudes toward the inner ring wall of the cover ring. An injection molding cylinder is provided on the cover ring. The injection molding cylinder is a cylindrical or prismatic structure, and the injection molding cylinder protrudes toward the inner ring wall of the cover ring.

6. The sealing cover for fermented pre-prepared dishes according to claim 5, characterized in that: The cover body is a flat structure or a curved structure, a base is provided in the middle of the cover body, an exhaust column is provided on the base, the exhaust column protrudes toward the edge of the cover, a slot is provided in the exhaust column, an exhaust hole is provided on the top of the exhaust column, an inner sleeve matching the slot is provided in the slot of the exhaust column, and the exhaust port of the inner sleeve is adapted to the exhaust hole of the exhaust column.

7. The sealing cover for fermented prepared dishes according to claim 6, characterized in that: The base protrudes in the opposite direction of the exhaust column protrusion, and a groove is formed at the connection between the cover body, the base and the exhaust column. The groove is consistent with the direction of the base protrusion. At least one positioning hole is provided on the base, and the positioning hole is used to determine the position of the base and the bottle mouth.

8. The sealing cover for fermented prepared dishes according to claim 7, characterized in that: The base is a stepped structure, and the height of the stepped structure of the base decreases from the inside to the outside. The sealing ring and the inner sleeve are both made of rubber and plastic soft rubber materials. The sealing ring is a circular ring structure, and a sealing strip is provided on the sealing ring. The sealing strip is arranged on the inner ring of the sealing ring, and the sealing strip is embedded in the injection molding cylinder of the cover ring. The sealing ring is used to seal the gap between the cover edge on the sealing cover body and the bottle body.

9. The sealing cover for fermented prepared dishes according to any one of claims 2 to 8, characterized in that: The inner sleeve is composed of an inner sleeve head, an inner sleeve body and a limit head. The inner sleeve body is provided with a limit head, and the limit head is provided with an inner sleeve head. The inner sleeve body of the inner sleeve is inserted into the slot of the exhaust column, and the inner sleeve head of the inner sleeve passes through the exhaust hole at the top of the exhaust column. The limit heads are stuck on the exhaust columns on both sides of the exhaust hole, and the inner sleeve body fits against the inner wall of the exhaust column.

10. Use of the sealing cover for fermented pre-prepared dishes according to claim 9 in sealing the exhaust port of a fermented pre-prepared dish tank.

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