Rubber plug and bottle
By designing a plug that includes a high barrier antioxidant film and breathable pores, the oxygen elimination problem in liquid food or drug bottles is solved, the storage life of reducing nutrients is extended and the quality of food or drug is guaranteed.
Patent Information
- Application Number
- CN202421767070.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The prior art cannot effectively eliminate the existing oxygen in liquid food or pharmaceutical bottles, resulting in loss of reducing nutrients during long-term storage.
A rubber plug is designed, including a bottle cap, a silicone column, annular plug pillar and an antioxidant. A high-barrier antioxidant film is provided on the outside of the antioxidant, a breathable hole is provided on the silicone column, and a through hole is provided to make the inside of the silicone column communicate with the outside. The high-barrier antioxidant film breaks at a preset temperature, and the antioxidant is exposed and in contact with the gas to eliminate oxygen in the bottle.
By eliminating oxygen in the bottle, the storage life of reducing nutrients in liquid food or medicine is improved, and the antioxidants do not come into contact with liquid food or medicine is ensured, ensuring the quality of food or medicine.
Smart Images
Figure CN222960343U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging, and particularly relates to a rubber stopper and a bottle. Background Art
[0002] At present, rubber stoppers for food or medicine include various types such as silica gel stoppers, rubber stoppers, and butyl rubber stoppers. All kinds of rubber stoppers have good sealing effects, but they still cannot avoid the influence of air in the bottle or external air on the easily oxidized components in the product. The commonly used methods for antioxidation in the bottle mainly include two types: chemical method and physical method. The chemical method usually adds antioxidants to food or medicine, and this method will bring more or less influence to the taste and effect of the product, especially for liquid food and medicine. The physical method usually adopts methods such as oxygen isolation and nitrogen filling. These methods have good effects on solid food or medicine, but for liquid food or medicine, it is difficult to eliminate the influence of the existing oxygen in the packaging by the oxygen isolation method, and the nitrogen filling method is easy to cause the packaging to rupture.
[0003] After the existing butyl rubber stopper is sealed, it can effectively isolate the air exchange inside and outside the bottle, but it cannot eliminate the existing oxygen in the bottle, and this part of oxygen may still have an adverse impact on the trace reducing nutritional components in food or medicine. Especially for liquid food or medicine, terminal sterilization is usually adopted, and the high-temperature and high-pressure environment will accelerate the chemical reaction between the oxygen in the bottle and the reducing nutritional components in food or medicine, reducing the nutritional value of food or medicine. Summary of the Utility Model
[0004] Based on this, the purpose of the utility model is to provide a rubber stopper and a bottle, aiming to solve the problem that the reducing nutritional components in liquid food or medicine in the prior art will be lost during long-term storage.
[0005] The rubber stopper proposed by the utility model includes a bottle cap, a hollow silica gel column arranged inside the bottle cap, an annular plug column arranged outside the silica gel column, and an antioxidant arranged inside the silica gel column. A high-barrier antioxidant film is arranged outside the antioxidant. The silica gel column is provided with air holes, and the annular plug column is provided with through holes adapted to the air holes so that the inside and outside of the silica gel column are communicated. The high-barrier antioxidant film ruptures at a preset temperature.
[0006] The above rubber stopper is provided with a bottle cap and an annular plug column on the inner side of the bottle cap. When the rubber stopper is fixed on the bottle body, the annular plug cooperates with the bottle mouth of the bottle body to achieve the sealing inside the bottle body. By arranging a silica gel column in the annular plug column and an antioxidant with an antioxidant film in the silica gel column, when the bottle is filled with liquid and the rubber stopper is installed, and high-temperature sterilization is carried out, since the high-barrier antioxidant film will rupture at a preset temperature, the antioxidant will be exposed in the silica gel column. The gas in the bottle body will contact the antioxidant in the silica gel column through the through holes and ventilation holes, thereby eliminating the existing oxygen in the bottle to improve the storage life of the reducing nutrient components in liquid foods or medicines. In addition, both the through holes and the ventilation holes are relatively small, and due to the elastic effect of silica gel, the ventilation holes are in a squeezed state under normal conditions, and it is very difficult for gases, liquids, and solids to pass through. When heating and disinfecting the liquid food or medicine in the bottle, due to the temperature effect, the gas in the bottle begins to expand, and then can be squeezed into the silica gel column through the ventilation holes. And due to the absorption of oxygen by the antioxidant, the gas in the silica gel column is continuously reduced, thus forming a pressure difference with the outside world, and then accelerating the gas flow rate to quickly absorb the oxygen in the bottle. When the oxygen is completely absorbed, the pressure difference on both sides is the same and the disinfection is completed, and the temperature begins to drop. Then the ventilation holes return to the initial state, making it very difficult for gases, liquids, and solids to pass through, so as to ensure that the antioxidant will not contact the liquid food or medicine and ensure the quality of the liquid food or medicine. Therefore, the present utility model solves the problem that the reducing nutrient components in liquid foods or medicines in the prior art will be lost during long-term storage in the prior art.
[0007] In addition, the rubber stopper proposed according to the present utility model may further have the following additional technical features:
[0008] Preferably, the top of the bottle cap includes an elastic arc portion and a ring portion provided outside the arc portion. A sealing column is provided inside the annular plug column. The silica gel column is located between the annular plug column and the sealing column. The top of the sealing column is connected to the arc portion, and the bottom is located above the ventilation hole. The top of the annular plug column is connected to the ring portion.
[0009] Preferably, a plurality of the ventilation holes and the through holes are equidistantly distributed circumferentially along the axis of the silica gel column, and the diameter of the through holes is larger than that of the ventilation holes.
[0010] Preferably, the cross-sectional area of the ventilation hole gradually decreases from the side close to the annular plug column to the other side.
[0011] Preferably, at least a part of the bottom of the sealing column is placed inside the silica gel column, and the sealing column is in interference fit with the inner side of the silica gel column.
[0012] Preferably, the height difference between the arc portion and the ring portion is greater than the distance between the sealing column and the ventilation hole.
[0013] Preferably, the elastic force of the arc portion is less than the static friction force between the sealing column and the inner side of the silica gel column.
[0014] Preferably, the annular plug column includes a vertical portion connected to the circular ring portion and a transition portion provided below the vertical portion, and a transition inclined surface is provided on the outer side of the transition portion so that the cross-sectional area of the transition portion gradually increases from one side close to the vertical portion to the other side.
[0015] Preferably, the through hole and the air vent hole are arranged in a staggered manner.
[0016] In addition, the present utility model further provides a bottle, which includes the above-mentioned rubber stopper and a bottle body, and the rubber stopper is sleeved at the bottle mouth of the bottle body to seal the inside of the bottle body. Description of the Drawings
[0017] Figure 1 It is a schematic structural diagram of the rubber stopper proposed in an embodiment of the present utility model;
[0018] Figure 2 It is Figure 1 A schematic structural diagram from another perspective;
[0019] Figure 3 It is a schematic cross-sectional view of the rubber stopper proposed in an embodiment of the present utility model;
[0020] Figure 4 It is a schematic structural diagram of the annular plug column proposed in an embodiment of the present utility model;
[0021] Figure 5 It is a schematic structural diagram of the silica gel column proposed in an embodiment of the present utility model;
[0022] Main element symbol description:
[0023] Bottle cap 10 Silica gel column 20 Annular plug column 30 Antioxidant 40 High-barrier antioxidant film 50 Vent hole 21 Through hole 31 Arc part 11 Ring part 12 Sealing column 60 Vertical part 32 Transition part 33
[0024] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific Embodiments
[0025] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.
[0026] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.
[0027] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.
[0028] Please refer to Figures 1 to 5 , which shows a rubber stopper in an embodiment of the present utility model, including a bottle cap 10, a hollow silica gel column 20 arranged in the bottle cap 10, an annular plug column 30 arranged outside the silica gel column 20, and an antioxidant 40 arranged in the silica gel column 20, wherein:
[0029] A high-barrier antioxidant film 50 is arranged outside the antioxidant 40, ventilation holes 21 are arranged on the silica gel column 20, and through holes 31 are arranged on the annular plug column 30 to communicate the inside and the outside of the silica gel column 20, and the high-barrier antioxidant film 50 ruptures at a preset temperature.
[0030] It can be understood that by providing a bottle cap 10 and an annular plug 30 on the inner side of the bottle cap 10, when the rubber plug is fixed on the bottle body, the annular plug cooperates with the bottle mouth of the bottle body to achieve sealing inside the bottle body, and by providing a silicone column 20 in the annular plug 30, and providing an antioxidant 40 with an antioxidant film in the silicone column 20, when the bottle is filled with liquid and the rubber plug is installed, high-temperature sterilization is performed, because the high-barrier antioxidant film 50 will rupture at a preset temperature, and then the antioxidant 40 will be exposed in the silicone column 20, and the gas in the bottle will contact the antioxidant 40 in the silicone column 20 through the through hole 31 and the air vent 21, thereby eliminating the existing oxygen in the bottle, so as to increase the storage life of reducing nutrients in liquid food or medicine. In addition, the through hole 31 and the vent hole 21 are relatively small, and due to the elastic effect of the silica gel, the vent hole 21 is in an extruded state under normal conditions, and it is difficult for gas, liquid and solid to pass through. When the liquid food or medicine in the bottle is heated and disinfected, due to the temperature effect, the gas in the bottle begins to expand, and then can be squeezed into the silica gel column 20 through the vent hole 21, and due to the absorption of oxygen by the antioxidant 40, the gas in the silica gel column 20 is continuously reduced, thereby forming a pressure difference with the outside world, thereby accelerating the circulation speed of the gas, and quickly absorbing the oxygen in the bottle. When the oxygen is completely absorbed, the pressure difference on both sides is consistent and the disinfection is completed, the temperature begins to drop, and then the vent hole 21 returns to the initial state, making it difficult for gas, liquid and solid to pass through, thereby ensuring that the antioxidant 40 will not contact the liquid food or medicine, and ensuring the quality of the liquid food or medicine. Therefore, the utility model solves the problem of loss of reducing nutrients in liquid food or medicine in the prior art in the prior art during long-term storage.
[0031] It should be noted that, by way of example and not limitation, in some optional embodiments, the antioxidant film can be a high barrier antioxidant film 50 made by melt mixing and extrusion molding of a composite material of polylactic acid (PLA) and polybutylene succinate (PBAT), which is modified by copolymerization of caprolactam and the like and annealing after adding a crystallization promoter such as talcum powder, and the heat deformation temperature is increased to 100-110°C, and 2wt% MMT and 4wt% tea polyphenols are added as active antioxidant substances. The composite film is stable and odorless, and can prevent the release of the antioxidant 40 during the open-air transportation stage, thereby effectively protecting the antioxidant 40. When the liquid is sterilized at high temperature (such as 105°C), the antioxidant film is thermally deformed and ruptured, releasing the antioxidant 40, and achieving internal anti-oxidation. In addition, the volume of the liquid food can be calculated according to the volume of the bottle, and then the type and quality of the antioxidant 40 can be adjusted in a targeted manner to ensure that the oxygen content in the bottle drops below 0.1%.
[0032] Specifically, the top of the bottle cap 10 includes an elastic arc portion 11 and a ring portion 12 disposed outside the arc portion 11. A sealing column 60 is provided inside the annular plug column 30. The silica gel column 20 is located between the annular plug column 30 and the sealing column 60. The top of the sealing column 60 is connected to the arc portion 11, and the bottom is located above the ventilation hole 21. The top of the annular plug column 30 is connected to the ring portion 12. In a specific implementation, by providing the arc portion 11 and the sealing column 60, an additional process is added after the liquid food or medicine is heated at a high temperature to squeeze the arc portion 11 on the bottle cap 10, so that the sealing column 60 moves downward, and then the sealing column 60 blocks the ventilation hole 21 on the side of the silica gel column 20, thereby realizing the sealing between the silica gel column 20 and the inside of the bottle, ensuring that the liquid food or medicine in the bottle will definitely not come into contact with the antioxidant 40, and thus ensuring the safety and quality of the liquid food or medicine.
[0033] By way of example and not limitation, in some alternative embodiments, the through hole 31 and the ventilation hole 21 are arranged in a staggered manner. By arranging the through hole 31 and the ventilation hole 21 in a staggered manner, it is difficult for gas and liquid to pass through the through hole 31 and the ventilation hole 21 and then into the silica gel column 20 under normal conditions. Only when the liquid food or medicine is heated, under the action of gas expansion, the gas can easily squeeze into the silica gel column 20. Also, due to the absorption of oxygen by the antioxidant 40, a pressure difference is formed between the inside of the silica gel column 20 and the inside of the bottle, so that the gas flows quickly, and the oxygen in the bottle is quickly adsorbed.
[0034] In addition, a plurality of ventilation holes 21 and through holes 31 are equidistantly distributed circumferentially along the axis of the silica gel column 20, and the diameter of the through hole 31 is larger than that of the ventilation hole 21. Since the ventilation holes 21 and the through holes 31 are relatively small, by providing a plurality of through holes 31 and ventilation holes 21, when the liquid food or medicine is disinfected at a high temperature, the gas in the bottle can quickly enter the silica gel column 20 under the action of high temperature, so that the antioxidant 40 absorbs the oxygen in the bottle. In addition, since the sealing between the inside of the silica gel column 20 and the outside mainly depends on the diameter of the ventilation hole 21 and the contact seal between the silica gel column 20 and the annular plug column 30, by setting the diameter of the through hole 31 larger, the gas can pass through more easily, and the impact on the sealing inside the silica gel column 20 is relatively small.
[0035] Specifically, the cross-sectional area of the ventilation hole 21 gradually decreases from the side close to the annular plug column 30 to the other side. By setting the ventilation hole 21 in a conical shape, the gas can enter the silica gel column 20 more easily and is more difficult to come out of the silica gel column 20, further preventing the antioxidant 40 from coming into contact with the liquid food or medicine.
[0036] Additionally, at least a part of the bottom of the sealing column 60 is placed inside the silica gel column 20, and the sealing column 60 is in interference fit with the inner side of the silica gel column 20. By placing a part of the sealing column 60 inside the silica gel column 20, when the extrusion arc portion 11 is pressed, through the guiding action of the inner side of the silica gel column 20, the sealing column 60 moves downward smoothly to block the air vent 21. In addition, through the interference fit between the silica gel column 20 and the sealing column 60, and the elastic effect of the silica gel column 20, the sealing effect between the two is achieved.
[0037] Specifically, the height difference between the arc portion 11 and the ring portion 12 is greater than the distance between the sealing column 60 and the air vent 21. By controlling the height difference between the arc portion 11 and the ring portion 12, it is ensured that when the arc portion 11 is pressed, the sealing column 60 can completely block the air vent 21, thereby ensuring the sealing effect between the silica gel column 20 and the sealing column 60.
[0038] Additionally, the elastic force of the arc portion 11 is less than the static friction force between the sealing column 60 and the inner side of the silica gel column 20. By setting the materials, the elastic force of the arc portion 11 and the static friction force between the sealing column 60 and the silica gel column 20 can be adjusted. Further, it is ensured that after the sealing column 60 moves downward to block the air vent 21, it will not reset due to the elastic force of the arc portion 11, resulting in the air vent 21 not being blocked by the sealing column 60, thereby ensuring the sealing effect between the sealing column 60 and the silica gel column 20. In addition, the arc portion 11 has a certain elasticity, and the elastic restoring force also helps the user to open the bottle cap 10.
[0039] Specifically, the annular plug column 30 includes a vertical portion 32 connected to the ring portion 12 and a transition portion 33 provided below the vertical portion 32. The outer side of the transition portion 33 is provided with a transition inclined surface so that the cross-sectional area of the transition portion 33 gradually increases from the side close to the vertical portion 32 to the other side. Through the guiding action of the inclined surface of the transition portion 33, it is easier to install the rubber plug on the bottle body, but more difficult to remove it from the bottle body, thereby ensuring the sealing effect inside the bottle body.
[0040] Additionally, the inner side of the bottle cap 10 is provided with an internal thread to facilitate the fixing of the bottle cap 10 on the bottle body. Through the cooperation of the internal thread of the bottle cap 10 and the external thread on the bottle body, the bottle cap 10 is firmly fixed on the bottle body. In addition, corresponding to the plug-in rubber plug, through the threaded connection method, the installation and disassembly of the bottle cap 10 are more convenient.
[0041] In summary, for the rubber stopper in the above embodiments of the present utility model, by providing a bottle cap 10 and arranging an annular plug column 30 inside the bottle cap 10, when the rubber stopper is fixed on the bottle body, the annular plug column cooperates with the bottle mouth of the bottle body to achieve the sealing inside the bottle body. By arranging a silica gel column 20 inside the annular plug column 30 and arranging an antioxidant 40 with an antioxidant film inside the silica gel column 20, when the bottle is filled with liquid and the rubber stopper is installed and then subjected to high-temperature sterilization, since the high-barrier antioxidant film 50 will rupture at a preset temperature, the antioxidant 40 will be exposed inside the silica gel column 20. The gas inside the bottle body will contact the antioxidant 40 inside the silica gel column 20 through the through holes 31 and the air holes 21, thereby eliminating the existing oxygen inside the bottle to improve the storage life of the reducing nutritional components in the liquid food or medicine. In addition, both the through holes 31 and the air holes 21 are relatively small, and due to the elastic effect of the silica gel, the air holes 21 are in a squeezed state under normal conditions, and it is very difficult for gas, liquid, and solid to pass through. When heating and disinfecting the liquid food or medicine inside the bottle, due to the temperature effect, the gas inside the bottle begins to expand, and then it can squeeze into the silica gel column 20 through the air holes 21. And due to the absorption of oxygen by the antioxidant 40, the gas inside the silica gel column 20 continuously decreases, thus forming a pressure difference with the outside world, and then accelerating the gas flow rate to quickly absorb the oxygen inside the bottle. When the oxygen is completely absorbed, the pressure difference on both sides is the same and the disinfection is completed, and the temperature begins to drop, and then the air holes 21 return to the initial state, making it very difficult for gas, liquid, and solid to pass through, so as to ensure that the antioxidant 40 will not contact the liquid food or medicine and ensure the quality of the liquid food or medicine. Therefore, the present utility model solves the problem that the reducing nutritional components in the liquid food in the prior art will be lost during long-term storage in the prior art.
[0042] In addition, the present utility model also provides a bottle, which includes the above-mentioned rubber stopper and the bottle body, and the rubber stopper is sleeved at the bottle mouth of the bottle body to seal the inside of the bottle body.
[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0044] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.
Claims
1. A rubber plug, characterized in that: It includes a bottle cap, a hollow silicone column arranged in the bottle cap, an annular plug column arranged on the outside of the silicone column, and an antioxidant arranged in the silicone column, a high-barrier antioxidant film is arranged on the outside of the antioxidant, an air vent is arranged on the silicone column, and the annular plug column is provided with a through hole adapted to the air vent so that the inside of the silicone column is connected with the outside, and the high-barrier antioxidant film breaks at a preset temperature.
2. The rubber plug according to claim 1, characterized in that: The top of the bottle cap includes an elastic arc portion and a ring portion arranged outside the arc portion, a sealing column is provided on the inner side of the annular plug, the silicone column is located between the annular plug and the sealing column, the top of the sealing column is connected to the arc portion, the bottom is located above the air vent, and the top of the annular plug is connected to the ring portion.
3. The rubber plug according to claim 2, characterized in that: The plurality of ventilation holes and the through holes are equidistantly distributed along the circumferential direction of the silicone column axis, and the diameter of the through holes is larger than that of the ventilation holes.
4. The rubber plug according to claim 1, characterized in that: The cross-sectional area of the vent hole gradually decreases from one side close to the annular plug to the other side.
5. The rubber plug according to claim 2, characterized in that: The bottom of the sealing column is at least partially placed in the silicone column, and the sealing column is interference fit with the inner side of the silicone column.
6. The rubber plug according to claim 3, characterized in that: A height difference between the arc portion and the annular portion is greater than a height difference between the sealing column and the air vent.
7. The rubber plug according to claim 5, characterized in that: The elastic force of the arc portion is smaller than the static friction force between the sealing column and the inner side of the silicone column.
8. The rubber plug according to claim 2, characterized in that: The annular plug includes a vertical portion connected to the annular portion and a transition portion arranged below the vertical portion. A transition slope is provided on the outer side of the transition portion so that the cross-sectional area of the transition portion gradually increases from one side close to the vertical portion to the other side.
9. The rubber plug according to claim 3, characterized in that: An internal thread is arranged on the inner side of the bottle cap so that the bottle cap can be easily fixed on the bottle body.
10. A bottle, characterized in that: The invention comprises the rubber plug and the bottle body as claimed in any one of claims 1 to 9, wherein the rubber plug is sleeved on the bottle mouth of the bottle body to seal the inside of the bottle body.