Modified atmosphere packaging and fresh-keeping device for stewed meat
By using a modified atmosphere packaging device for braised pork belly, which combines a vacuum pump and an exhaust pump with a sealed structure, the problem of deterioration in color, taste, and flavor of braised pork belly under the traditional sales model has been solved, resulting in a significant improvement in preservation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
Under the traditional sales model, braised pork belly is easily exposed to air, which makes it a breeding ground for microorganisms, resulting in a deterioration in color, texture and flavor. In addition, refrigeration cannot isolate oxygen, leading to fat oxidation, which affects product quality and shelf life.
A modified atmosphere packaging device for braised pork belly is used. It uses a vacuum pump to create a vacuum, an exhaust pump to release the exhaust gas, and a preservative gas to fill the packaging. Combined with a sealing structure, this reduces the oxygen content inside the packaging bag and inhibits microbial growth and oxidation.
It significantly extends the shelf life of braised pork belly, maintains its color, texture and flavor, reduces quality decline caused by oxidation and microbial activity, and increases the product's sales radius and cycle.
Smart Images
Figure CN224090514U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of modified atmosphere packaging and fresh-keeping, and particularly relates to a modified atmosphere packaging and fresh-keeping device for braised pork belly. BACKGROUND
[0002] With the improvement of people's living standards and the spread of gourmet culture, the demand for characteristic gourmet food is increasingly booming. The unique flavor of braised pork belly attracts the attention of many consumers from other places, and the market demand for it continues to rise. Braised pork belly is mainly made of five-flavor pork, and is made through stewing process. It has a soft and glutinous taste and is fatty but not greasy. However, in the traditional sales mode, braised pork belly is directly exposed to the air. Because it is rich in protein and fat nutrients, it is easy to become a breeding ground for microorganisms. In a short period of time at room temperature, microorganisms multiply rapidly, causing the surface of braised pork belly to become sticky and discolored, and the flavor to be lost, seriously affecting the quality and safety of food. Even if cold storage is used, because oxygen cannot be isolated, the fat oxidation reaction continues, resulting in poor taste and a significantly shortened shelf life, which greatly limits the product's sales radius and sales cycle. Modified atmosphere packaging can change the gas environment in the package, thereby inhibiting the growth of microorganisms and delaying food spoilage.
[0003] The method of modified atmosphere packaging can effectively maintain the color, taste, flavor and nutritional value of braised pork belly, reduce the quality decline caused by oxidation and microbial action, and enable consumers to enjoy fresh and delicious braised pork belly for a long time. At the same time, by controlling the gas composition in the package, the growth of microorganisms and the oxidation reaction of food are inhibited, thereby significantly prolonging the shelf life of braised pork belly, which can be several times longer than ordinary packaging. However, the packaging effect is not good, which can cause changes in color and flavor of braised pork belly due to oxidation and microbial growth. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides a braised pork belly modified atmosphere packaging and fresh-keeping device, which aims to improve the problem of poor packaging effect in the prior art, which can cause changes in color and flavor of braised pork belly due to oxidation and microbial growth.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modified atmosphere packaging and preservation device for braised pork, comprising a workbench, a cover plate rotatably connected to the top right side of the workbench, a heat-sealing sheet one fixedly connected to the bottom left side of the cover plate, a heat-sealing sheet two fixedly connected to the top right side of the workbench, a packaging bag disposed at the top right middle of the workbench, a sealing sticker fixedly connected to the right side of the packaging bag, a gas storage tank fixedly connected to the front end of the bottom inner side of the workbench, a vacuum pipe connected to the rear side of the gas storage tank, a vacuum pump fixedly connected to the middle of the vacuum pipe, a gas mixing tank fixedly connected to the rear end of the bottom inner side of the workbench, an exhaust pipe connected to the front side of the gas mixing tank, an exhaust pump fixedly connected to the middle of the exhaust pipe, and a fixing mechanism disposed at the rear side of the workbench for replacing the preservation gas storage tank.
[0006] As a further description of the above technical solution:
[0007] The fixing mechanism includes two support platforms, the front sides of which are fixedly connected to the rear side of the workbench. A gas cylinder is slidably connected to the top of the support platform. A threaded sleeve is fixedly connected to the left side of the gas cylinder. A connecting pipe is threadedly connected to the inner wall of the threaded sleeve. The rear side of the connecting pipe passes through the workbench and communicates with the rear side of the gas mixing tank. A sealing sleeve is slidably connected to the outer wall of the connecting pipe. The inner wall of the sealing sleeve is threadedly connected to the outer wall of the threaded sleeve. A protective plate is rotatably connected to the top of the support platform. Multiple L-shaped buckles are fixedly connected to the rear right end of the workbench. The bottom of the protective plate engages with the top of the L-shaped buckles.
[0008] As a further description of the above technical solution:
[0009] A vacuum valve is fixedly connected to the top of the vacuum pump, and an exhaust valve is fixedly connected to the top of the exhaust pump.
[0010] As a further description of the above technical solution:
[0011] A handle is rotatably connected to the top left side of the cover plate, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.
[0012] As a further description of the above technical solution:
[0013] A warning sign is fixedly connected to the top of the cover plate, and a heat sink is fixedly connected to the right side of the workbench.
[0014] As a further description of the above technical solution:
[0015] An anti-slip sheet is fixedly connected to the top left side of the workbench near the edge, and an anti-slip mat is fixedly connected to the bottom of the workbench.
[0016] As a further description of the above technical solution:
[0017] Two fixing blocks are fixedly connected to the top left side of the cover plate, and a lighting tube is fixedly connected between the two adjacent fixing blocks.
[0018] As a further description of the above technical solution:
[0019] A controller is fixedly connected to the front side of the workbench, and the controller is electrically connected to the vacuum pump, the exhaust pump and the lighting tube respectively.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the vacuum pipe and the exhaust pipe are placed at the opening of the packaging bag and sealed with a sealing sticker. Then, the packaging bag is evacuated by a vacuum pump. After evacuation, the preservation gas is injected into the packaging bag by an exhaust pump. Finally, the cover is rotated to make the heat sealing sheet one and the heat sealing sheet two adhere together, thereby achieving a sealing treatment on the front side of the packaging bag. This can significantly reduce the oxygen content in the packaging bag, slow down the oxidation rate of the braised pork, and inhibit the growth of aerobic microorganisms.
[0022] 2. In this utility model, after the gas cylinder is placed on the top of the support platform, it is initially sealed by connecting the threaded sleeve to the connecting pipe. Then, the sealing sleeve on the outer wall of the connecting pipe is rotated to connect the sealing sleeve to the outer wall of the threaded sleeve, which strengthens the sealing effect and effectively reduces the possibility of gas leakage, ensuring the safety and stability of the gas in the gas cylinder during storage and use. Finally, the protective plate can be rotated so that the bottom of the protective plate engages with the L-shaped buckle, achieving a further protective effect on the gas cylinder. Attached Figure Description
[0023] Figure 1 This is a front view of the workbench of a modified atmosphere packaging and preservation device for braised pork belly proposed in this utility model.
[0024] Figure 2 This is a top view of the cover plate of a modified atmosphere packaging and preservation device for braised pork belly proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the mixing tank of a modified atmosphere packaging and preservation device for braised pork belly proposed in this utility model.
[0026] Figure 4 This is a diagram showing the gas storage tank of a modified atmosphere packaging and preservation device for braised pork belly proposed in this utility model.
[0027] Figure 5 This is a split view of the sealing sleeve of a modified atmosphere packaging and preservation device for braised pork belly proposed in this utility model.
[0028] Legend:
[0029] 1. Workbench; 2. Fixing mechanism; 201. Support platform; 202. Gas cylinder; 203. Threaded sleeve; 204. Connecting pipe; 205. Sealing sleeve; 206. Protective plate; 207. L-shaped buckle; 3. Cover plate; 4. Heat sealing sheet one; 5. Heat sealing sheet two; 6. Packaging bag; 7. Sealing sticker; 8. Gas storage tank; 9. Vacuum pipeline; 10. Vacuum pump; 11. Mixing tank; 12. Exhaust pipeline; 13. Exhaust pump; 14. Vacuum valve; 15. Exhaust valve; 16. Handle; 17. Anti-slip sleeve; 18. Warning sign; 19. Heat sink; 20. Anti-slip sheet; 21. Anti-slip mat; 22. Fixing block; 23. Lighting tube; 24. Controller. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a modified atmosphere packaging (MAP) preservation device for braised pork, comprising a workbench 1, a cover plate 3 rotatably connected to the top right side of the workbench 1, a heat sealing sheet 4 fixedly connected to the bottom left side of the cover plate 3, a heat sealing sheet 5 fixedly connected to the top right side of the workbench 1, a packaging bag 6 disposed at the middle of the top right side of the workbench 1, a sealing sticker 7 fixedly connected to the right side of the packaging bag 6, a gas storage tank 8 fixedly connected to the front end of the bottom inner side of the workbench 1, a vacuum pipe 9 connected to the rear side of the gas storage tank 8, a vacuum pump 10 fixedly connected to the middle of the vacuum pipe 9, a gas mixing tank 11 fixedly connected to the rear end of the bottom inner side of the workbench 1, an exhaust pipe 12 connected to the front side of the gas mixing tank 11, an exhaust pump 13 fixedly connected to the middle of the exhaust pipe 12, and a fixing mechanism 2 disposed at the rear side of the workbench 1 for replacing the preservation gas storage tank;
[0032] Specifically, a cover plate 3 is connected to the top right side of the workbench 1 via a rotating mechanism. A heat-sealing sheet 4 is fixedly connected to the bottom left side of the cover plate 3 for heat sealing. At the same time, another heat-sealing sheet 5 is also fixedly connected to the top right side of the workbench 1 to ensure the airtightness of the packaging. A sealing sticker 7 is fixedly connected to the right side of the packaging bag 6 to further improve the sealing effect of the packaging bag 6. In order to ensure the supply of preservation gas, a gas storage tank 8 is fixedly connected to the front end of the bottom inner side of the workbench 1. A vacuum pipe 9 is connected to the rear side of the gas storage tank 8. A vacuum pump 10 is fixedly connected to the middle of the vacuum pipe 9 to extract the air from the packaging bag 6 to achieve the purpose of preservation. An exhaust pump 13 is fixedly connected to the middle of the exhaust pipe 12 to exhaust the preservation gas in the mixed gas tank 11 to further improve the preservation effect.
[0033] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 5 The fixing mechanism 2 includes two support platforms 201. The front side of each support platform 201 is fixedly connected to the rear side of the workbench 1. A gas cylinder 202 is slidably connected to the top of the support platform 201. A threaded sleeve 203 is fixedly connected to the left side of the gas cylinder 202. A connecting pipe 204 is threadedly connected to the inner wall of the threaded sleeve 203. The rear side of the connecting pipe 204 passes through the workbench 1 and communicates with the rear side of the mixing tank 11. A sealing sleeve 205 is slidably connected to the outer wall of the connecting pipe 204. The inner wall of the sealing sleeve 205 is threadedly connected to the outer wall of the threaded sleeve 203. A protective plate 206 is rotatably connected to the top of the support platform 201. Multiple L-shaped buckles 207 are fixedly connected to the rear right end of the workbench 1. The bottom of the protective plate 206 is engaged with the top of the L-shaped buckles 207.
[0034] Specifically, the top of the support platform 201 is slidably connected to the gas cylinder 202, which is used to provide different preservation gases. The threads on the inner wall of the threaded sleeve 203 and the threads on the outer wall of the connecting pipe 204 ensure the tightness and reliability of the connection. The rear side of the connecting pipe 204 passes through the workbench 1 and connects to the rear side of the mixing tank 11, which improves work efficiency. In order to further ensure the sealing of the connection, the outer wall of the connecting pipe 204 is also connected by a sealing sleeve 205. The inner wall of the sealing sleeve 205 is connected to the outer wall of the threaded sleeve 203 by a threaded connection, which ensures the stability and sealing effect of the connection.
[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 A handle 16 is rotatably connected to the top left of the cover plate 3. An anti-slip sleeve 17 is fixedly connected to the outer wall of the handle 16. A controller 24 is fixedly connected to the front side of the workbench 1. The controller 24 is electrically connected to the vacuum pump 10, the exhaust pump 13 and the lighting tube 23 respectively. A warning sign 18 is fixedly connected to the top of the cover plate 3. A heat sink 19 is fixedly connected to the right side of the workbench 1.
[0036] Specifically, the handle 16 facilitates the use of the cover plate 3, and the anti-slip sleeve 17 fixedly connected to its outer wall ensures a stable grip in various working environments and reduces the risk of accidental slippage. The controller 24 is electrically connected to the vacuum pump 10, the exhaust pump 13 and the lighting tube 23 to form an efficient working system. The warning sign 18 reminds users to pay attention to potential safety risks, and the heat sink 19 ensures the heat dissipation effect of the equipment during long-term operation.
[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 An anti-slip sheet 20 is fixedly connected to the top left side of the workbench 1 near the edge, an anti-slip pad 21 is fixedly connected to the bottom of the workbench 1, a vacuum valve 14 is fixedly connected to the top of the vacuum pump 10, an exhaust valve 15 is fixedly connected to the top of the exhaust pump 13, and two fixing blocks 22 are fixedly connected to the top left side of the cover plate 3, and a lighting tube 23 is fixedly connected between the adjacent two fixing blocks 22.
[0038] Specifically, the anti-slip pad 20 ensures that items on the surface of the workbench 1 will not easily slip during use, thus ensuring operational safety. The anti-slip mat 21 prevents the workbench 1 from sliding during use. The top of the vacuum pump 10 is fixedly connected to the vacuum valve 14, which can effectively control the working state of the vacuum pump 10. Similarly, the top of the exhaust pump 13 is also fixedly connected to the exhaust valve 15, which is responsible for adjusting the exhaust efficiency of the exhaust pump 13 and ensuring the stability of the exhaust pump 13 during operation.
[0039] Working principle: After placing the packaging bag 6 on the top left side of the workbench 1, place the vacuum pipe 9 and the exhaust pipe 12 at the opening of the packaging bag 6 and seal it with the sealing sticker 7. Then, use the vacuum pump 10 to evacuate the packaging bag 6. After evacuation, use the exhaust pump 13 to push the preservative gas into the packaging bag 6. Finally, rotate the cover plate 3 to make the heat sealing sheet 1 4 and the heat sealing sheet 2 5 stick together, thus sealing the front of the packaging bag 6. This can significantly reduce the oxygen content inside the packaging bag 6, slow down the oxidation rate of the braised pork, inhibit the growth of aerobic microorganisms, and remove some moisture to reduce humidity, which is not conducive to microbial growth. The subsequent sealing can ensure that the vacuuming and inflation operations are effective inside the packaging bag 6, prevent gas leakage, and make the gas replacement process efficient and stable.
[0040] After placing the gas cylinder 202 on top of the support platform 201, it is threadedly connected to the connecting pipe 204 through the threaded sleeve 203 to achieve a preliminary seal. Then, the sealing sleeve 205 on the outer wall of the connecting pipe 204 is rotated to make the sealing sleeve 205 threadedly connected to the outer wall of the threaded sleeve 203, which strengthens the sealing effect and can effectively reduce the possibility of gas leakage, ensuring the safety and stability of the gas in the gas cylinder 202 during storage and use. Finally, the protective plate 206 can be rotated so that the bottom of the protective plate 206 engages with the L-shaped buckle 207 to achieve a further protective effect on the gas cylinder 202.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modified atmosphere packaging and preservation device for braised pork belly, comprising a workbench (1), characterized in that: A cover plate (3) is rotatably connected to the top right side of the workbench (1). A heat sealing sheet (4) is fixedly connected to the bottom left side of the cover plate (3). A heat sealing sheet (5) is fixedly connected to the top right side of the workbench (1). A packaging bag (6) is provided at the middle of the top right side of the workbench (1). A sealing sticker (7) is fixedly connected to the right side of the packaging bag (6). A gas storage tank (8) is fixedly connected to the front end of the bottom inner side of the workbench (1). A vacuum pipe (9) is connected to the rear side of the gas storage tank (8). A vacuum pump (10) is fixedly connected to the middle of the vacuum pipe (9). A gas mixing tank (11) is fixedly connected to the rear end of the bottom inner side of the workbench (1). An exhaust pipe (12) is connected to the front side of the gas mixing tank (11). An exhaust pump (13) is fixedly connected to the middle of the exhaust pipe (12). A fixing mechanism (2) is provided at the rear side of the workbench (1). The fixing mechanism (2) is used to replace the gas storage tank.
2. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: The fixing mechanism (2) includes two support platforms (201). The front side of each support platform (201) is fixedly connected to the rear side of the workbench (1). A gas cylinder (202) is slidably connected to the top of the support platform (201). A threaded sleeve (203) is fixedly connected to the left side of the gas cylinder (202). A connecting pipe (204) is threadedly connected to the inner wall of the threaded sleeve (203). The rear side of the connecting pipe (204) passes through the workbench (1) and communicates with the rear side of the mixing tank (11). A sealing sleeve (205) is slidably connected to the outer wall of the connecting pipe (204). The inner wall of the sealing sleeve (205) is threadedly connected to the outer wall of the threaded sleeve (203). A protective plate (206) is rotatably connected to the top of the support platform (201). Multiple L-shaped buckles (207) are fixedly connected to the rear right end of the workbench (1). The bottom of the protective plate (206) engages with the top of the L-shaped buckles (207).
3. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: A vacuum valve (14) is fixedly connected to the top of the vacuum pump (10), and an exhaust valve (15) is fixedly connected to the top of the exhaust pump (13).
4. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: A handle (16) is rotatably connected to the top left side of the cover plate (3), and an anti-slip sleeve (17) is fixedly connected to the outer wall of the handle (16).
5. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: A warning sign (18) is fixedly connected to the top of the cover plate (3), and a heat sink (19) is fixedly connected to the right side of the workbench (1).
6. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: An anti-slip sheet (20) is fixedly connected to the top left side of the workbench (1) near the edge, and an anti-slip pad (21) is fixedly connected to the bottom of the workbench (1).
7. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: Two fixing blocks (22) are fixedly connected to the top left side of the cover plate (3), and a lighting tube (23) is fixedly connected between the two adjacent fixing blocks (22).
8. The modified atmosphere packaging and preservation device for braised pork belly according to claim 1, characterized in that: A controller (24) is fixedly connected to the front side of the workbench (1), and the controller (24) is electrically connected to the vacuum pump (10), the exhaust pump (13) and the lighting tube (23).