Self-exhausting packaging bottle cap

Abstract

A self-exhausting packaging bottle cap comprises a main cap body. A through hole is formed in the top of the main cover body; an air inlet plug is arranged in the main cover body opposite to the through hole; a venting plug is arranged on the upper side of the main cover body opposite to the through hole; the exhaust plug is in threaded connection with the air inlet plug; a connecting shaft penetrates through the middle parts of the exhaust plug and the air inlet plug; a plurality of air inlets are formed in the bottom of the air inlet plug; a sealing cover is slidably arranged on the outer side of the connecting shaft in the venting plug and covers the upper side of a communicating port of the venting plug and the air inlet plug; a gland is slidably arranged on the connecting shaft; a spring is arranged between the gland and the sealing cover; multiple sliding grooves are formed in the upper portion of the connecting shaft. A sliding block is slidably arranged in the gland relative to the sliding chute; an adjusting knob is rotationally arranged at the top of the venting plug; the adjusting knob extends into the venting plug and is in threaded connection with the gland; two exhaust holes are formed in the upper portion of the exhaust plug.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the exhaust bottle cap field especially, it relates to a kind of self exhaust packaging bottle cap. BACKGROUND

[0002] Self exhaust bottle cap is a kind of cover designed for container (such as bottle), its main function is to allow container inside to automatically discharge gas when pressure increases, while keeping the outside air or impurities from entering container, this kind of bottle cap is particularly suitable for food needing fermentation or long-time storage, such as pickles, fermented bean curd, spicy sauce etc., because these foods can produce gas during storage, if gas is not discharged in time, there will be problems such as container burst, high-pressure environment inhibits fermentation speed, etc., and the exhaust pressure of the self exhaust bottle cap used at present cannot be adjusted, it is difficult to control the exhaust pressure inside container, when facing different product categories in container such as wine, yogurt, pickles etc., different exhaust pressure is needed, which cannot be adjusted and adapted, the applicable range is lower. SUMMARY

[0003] The utility model aims at providing a kind of self exhaust packaging bottle cap, to solve the exhaust pressure of the self exhaust bottle cap used at present cannot be adjusted, it is difficult to control the exhaust pressure inside container, when facing different product categories in container such as wine, yogurt, pickles etc., different exhaust pressure is needed, which cannot be adjusted and adapted, the applicable range is lower technical problem.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model of a kind of self exhaust packaging bottle cap is as follows:

[0005] A kind of self exhaust packaging bottle cap, including main cover body;Main cover body top is provided with through-hole;Main cover body is set with air inlet plug in the position opposite through-hole;Main cover body upper side is set with exhaust plug in the position opposite through-hole;Exhaust plug and air inlet plug are connected by screw thread;Exhaust plug and air inlet plug middle part are set with connecting shaft through;Air inlet plug bottom is provided with multiple air inlets;Exhaust plug is slidably arranged with sealing cover on the upper side of exhaust plug and air inlet plug communication port outside connecting shaft;Connecting shaft upper portion is slidably arranged with gland;Spring is arranged between gland and sealing cover;Connecting shaft upper portion is provided with multiple sliding grooves;Gland is slidably arranged with sliding block in sliding groove;Exhaust plug top is rotatably arranged with adjusting knob;Adjusting knob is extended into exhaust plug and is connected with gland by screw thread;Exhaust plug upper portion is provided with two exhaust holes.

[0006] Further, the air inlet plug is provided with a microporous membrane outside the connecting shaft.

[0007] Further, the exhaust plug is provided with an annular sealing groove at the position opposite the sealing cover;The sealing cover is provided with a sealing rubber ring opposite the sealing groove.

[0008] Further, the exhaust hole upper side is provided with a sealing ball; the rotating connection between the sealing cover and the sealing ball is provided with a support rod.

[0009] The self-exhausting packaging bottle cover has the following advantages: the sealing cover is arranged on the upper side of the air inlet plug in the air outlet plug, the spring is arranged between the sealing cover and the gland, the adjusting knob is threadedly connected with the gland, the adjusting knob is rotated, the gland is driven to slide on the connecting shaft through the threaded connection, the compression degree of the spring between the gland and the sealing cover is adjusted, the pressure of the gas in the container on the sliding of the sealing cover on the connecting shaft through the air inlet plug is changed, the function of adjusting the exhaust pressure in the container is realized, the exhaust pressure range of the air outlet plug is adjusted according to the required exhaust pressure of different products in the container, the oxygen concentration, temperature and humidity in the container can be more accurately controlled, the best environment for the growth and reproduction of microorganisms is provided, the fermentation efficiency is improved, the fermentation period is shortened, the product quality is improved, the application range of the self-exhausting packaging bottle cover is also increased; the microporous membrane is arranged in the air inlet plug, the microporous structure with small pore size is used, the gas in the container is prevented from entering the air outlet plug through the air inlet plug, the liquid in the container is prevented from leaking through the self-exhausting packaging bottle cover, dust and moisture in the external air are prevented from entering the container through the self-exhausting packaging bottle cover, and the product in the container is prevented from being polluted; the sealing rubber ring arranged on the sealing groove and the sealing cover provides good sealing effect for the sealing cover, in the case that exhaust is not needed, the air dust and other pollutants outside the container are prevented from entering the container and causing pollution, the stable oxygen concentration, temperature and humidity in the container can be effectively maintained, and the suitable fermentation conditions are maintained. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a whole structure schematic view of the utility model;

[0011] Figure 2 It is the utility model Figure 1 It is an A area enlarged schematic view;

[0012] Figure 3 It is a cross section structure schematic view of the utility model;

[0013] Figure 4 It is the utility model Figure 3 It is a B area enlarged schematic view;

[0014] Figure 5 It is the utility model Figure 4 It is a C area enlarged schematic view;

[0015] The markings in the diagram are as follows: 1. Main cover; 2. Through hole; 3. Air inlet plug; 4. Air outlet plug; 5. Connecting shaft; 6. Air inlet; 7. Sealing cover; 8. Pressure cover; 9. Spring; 10. Slide groove; 11. Slider; 12. Adjustment knob; 13. Air outlet; 14. Microporous membrane; 15. Sealing groove; 16. Sealing ring; 17. Sealing ball; 18. Support rod. Detailed Implementation

[0016] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a self-venting packaging bottle cap.

[0017] like Figures 1-5 As shown, this utility model discloses a self-venting bottle cap, comprising a main cap body 1; a through hole 2 is provided at the top of the main cap body 1; an air inlet plug 3 is provided inside the main cap body 1 at a position opposite to the through hole 2; an exhaust plug 4 is provided on the upper side of the main cap body 1 at a position opposite to the through hole 2; the exhaust plug 4 and the air inlet plug 3 are connected by threads; a connecting shaft 5 is provided through the middle of the exhaust plug 4 and the air inlet plug 3; multiple air inlets 6 are provided at the bottom of the air inlet plug 3; a sealing cap 7 is slidably provided inside the exhaust plug 4 outside the connecting shaft 5 and is fastened to the upper side of the communication port between the exhaust plug 4 and the air inlet plug 3; a pressure cap 8 is slidably provided on the upper part of the connecting shaft 5; a spring 9 is provided between the pressure cap 8 and the sealing cap 7; multiple sliding grooves 10 are provided on the upper part of the connecting shaft 5; a slider 11 is slidably provided on the pressure cap 8 relative to the sliding grooves 10; an adjustment knob 12 is rotatably provided on the top of the exhaust plug 4; the adjustment knob 12 extends into the exhaust plug 4 and is connected to the pressure cap 8 by threads; two exhaust holes 13 are provided on the upper part of the exhaust plug 4.

[0018] Combination Figures 1-5As shown, during use, food that may produce gas during fermentation or long-term storage is placed in the container. The main cap 1 of this self-venting packaging cap is then sealed to the container opening, creating a seal for the internal environment. When gas is generated inside the container, creating a high-pressure environment, the gas passes through the air inlet 6 of the air inlet plug 3 to the connection channel between the air inlet plug 3 and the exhaust plug 4. When the gas pressure reaches a certain level, the gas pushes the sealing cap 7 to slide on the connecting shaft 5, compressing the spring 9. The gas then enters the exhaust plug 4 through the gap under the sealing cap 7 and is discharged through the exhaust hole 13. This achieves the function of automatically venting gas when the internal pressure increases, balancing the pressure inside the container. The required pressure varies depending on the product placed in the container. When the pressure for automatic venting varies, rotating the adjustment knob 12 causes the pressure cap 8 to slide on the connecting shaft 5 via a threaded connection. This adjusts the compression of the spring 9 between the pressure cap 8 and the sealing cap 7, changing the pressure at which the gas inside the container pushes the sealing cap 7 to slide on the connecting shaft 5 through the air inlet plug 3. This allows for adjustment of the venting pressure inside the container, making it easier to adjust the venting plug 4 to a suitable venting pressure range according to the different types of products inside the container. It also allows for more precise control of the oxygen concentration, temperature, and humidity inside the container, providing an optimal environment for the growth and reproduction of microorganisms. This helps improve fermentation efficiency, shorten the fermentation cycle, and enhance product quality, while also increasing the applicability of this venting packaging cap.

[0019] A microporous membrane 14 is provided inside the air inlet plug 3 and outside the connecting shaft 5. The microporous membrane 14 is provided inside the air inlet plug 3. Utilizing the microporous structure of the microporous membrane 14 with its small pore size, the gas entering the exhaust plug 4 position after passing through the air inlet 6 of the air inlet plug 3 is the gas inside the container. This prevents the liquid inside the container from leaking through the self-exhausting packaging bottle cap. At the same time, it can also effectively prevent dust and moisture in the outside air from entering the container through the self-exhausting packaging bottle cap, preventing the product inside the container from being contaminated.

[0020] The vent plug 4 has an annular sealing groove 15 positioned relative to the sealing cap 7; the sealing cap 7 has a sealing ring 16 positioned relative to the sealing groove 15. The sealing groove 15 and the sealing ring 16 positioned relative to the sealing groove 15 provide a good sealing effect for the sealing cap 7. This effectively prevents pollutants such as dust from the outside air from entering the container and causing contamination when venting is not required. It can also effectively maintain stable oxygen concentration, temperature, humidity, and other suitable fermentation conditions inside the container.

[0021] A sealing ball 17 is provided on the upper side of the vent 13; a support rod 18 is rotatably connected between the sealing cover 7 and the sealing ball 17. By providing the sealing ball 17 on the vent 13, a sealing effect is achieved on the internal space of the vent plug 4 when the pressure inside the container is suitable and venting is not required, preventing external air, dust and other pollutants from entering the vent plug 4 and posing a risk of entering the container during venting. Together with the sealing cover 7, a multi-layer sealing protection is formed for the container, resulting in a better sealing effect. When the gas pressure inside the container is high, the sealing cover 7 is pushed to slide up on the connecting shaft 5 to release the gas. The raised sealing cover 7 pushes the sealing ball 17 upward to restore the normal venting effect of the vent 13, releasing the high-pressure gas inside the container. Then, the sealing cover 7 is pushed down by the spring 9, which drives the support rod 18 to pull the sealing ball 17 back to the vent 13 to re-form a seal.

[0022] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A self-venting bottle cap, characterized in that, Includes a main cover (1); a through hole (2) is provided at the top of the main cover (1); an air inlet plug (3) is provided in the main cover (1) at a position opposite to the through hole (2); an exhaust plug (4) is provided on the upper side of the main cover (1) at a position opposite to the through hole (2); the exhaust plug (4) and the air inlet plug (3) are connected by threads; a connecting shaft (5) is provided through the middle of the exhaust plug (4) and the air inlet plug (3); multiple air inlets (6) are provided at the bottom of the air inlet plug (3); a sealing cap (7) is slidably provided inside the exhaust plug (4) on the outside of the connecting shaft (5) and fastened to the exhaust plug. (4) The upper side of the air inlet plug (3) is connected to the air inlet plug (3); a pressure cover (8) is slidably provided on the upper part of the connecting shaft (5); a spring (9) is provided between the pressure cover (8) and the sealing cover (7); multiple sliding grooves (10) are provided on the upper part of the connecting shaft (5); a slider (11) is slidably provided on the pressure cover (8) relative to the sliding groove (10); an adjustment knob (12) is rotatably provided on the top of the exhaust plug (4); the adjustment knob (12) extends into the exhaust plug (4) and is threadedly connected to the pressure cover (8); two exhaust holes (13) are provided on the upper part of the exhaust plug (4).

2. The self-venting bottle cap according to claim 1, characterized in that, The air intake plug (3) is provided with a microporous membrane (14) inside the connecting shaft (5) on the outside.

3. The self-venting bottle cap according to claim 1, characterized in that, The vent plug (4) is provided with an annular sealing groove (15) relative to the sealing cover (7); the sealing cover (7) is provided with a sealing ring (16) relative to the sealing groove (15).

4. The self-venting bottle cap according to claim 1, characterized in that, A sealing ball (17) is provided on the upper side of the vent (13); a support rod (18) is rotatably connected between the sealing cover (7) and the sealing ball (17).

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