An exhaust valve

Abstract

The utility model relates to a container accessory, concretely is a kind of exhaust valve, including valve body, first installation cavity and second installation cavity are respectively set in valve body both ends, first installation cavity and second installation cavity are respectively towards valve body outside opening, and first installation cavity and second installation cavity are communicated by through-hole between, slidingly connected with connecting shaft in the through-hole, connecting shaft both ends are respectively extended in first installation cavity and second installation cavity, the opening end of second installation cavity is connected with bottom plate, valve port is set in bottom plate, the lower part of connecting shaft is connected spring, the lower part of spring is connected with valve core, the bottom of valve core can be blocked valve port.The utility model discloses the exhaust valve can be embedded in container or container lid, when using, staff only need to pull connecting shaft to realize the gas discharge in container, it is simple and quick to operate, under the premise of keeping container substantially sealed, adjust internal air pressure, so that the gas fermented in interior can be orderly discharged.

Description

Technical Field

[0001] This utility model relates to a container accessory, specifically an exhaust valve. Background Technology

[0002] Many foods and beverages, such as pickles, medicinal wines, and rice wines, rely on fermentation processes for processing. During this process, containers such as fermentation bottles, wine jars, and pickling jars are widely used. During fermentation, the metabolic activities of microorganisms produce a large amount of gas, causing the internal pressure of the container to gradually increase. If the gas cannot be released in time, it may not only affect the fermentation process but also pose a risk of container deformation or even bursting.

[0003] In traditional operations, it is often necessary to manually open the container lid frequently to release gas. However, this method is time-consuming and labor-intensive, and it is also easy to introduce unwanted bacteria or oxygen, leading to contamination, spoilage, or oxidation of the fermented product, thus affecting the final taste and quality. To solve this problem, fermentation containers need to be designed with a dedicated venting structure. While maintaining the container's basic seal, the internal air pressure is regulated to allow the generated gas to escape in an orderly manner, while preventing external air and microorganisms from entering. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an exhaust valve.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An exhaust valve includes a valve body with a first mounting cavity and a second mounting cavity at both ends. The first and second mounting cavities open towards the outside of the valve body and are connected by a through hole. A connecting shaft is slidably connected within the through hole, with both ends of the connecting shaft extending into the first and second mounting cavities, respectively. A base plate is connected to the open end of the second mounting cavity, and a valve port is provided on the base plate. A spring is connected to the lower part of the connecting shaft, and a valve core is connected to the lower part of the spring. The bottom of the valve core can seal the valve port.

[0006] In practical use, the exhaust valve is embedded in the container or container lid, with the end of the exhaust valve with the valve port inside the container and the end with the first mounting cavity outside the container. When exhaust is needed, simply pull the connecting shaft. The connecting shaft, through a spring, drives the valve core away from the valve port, so that the fermentation gas in the container flows from the valve port through the second mounting cavity, the through hole, and the first mounting cavity in sequence, and then is discharged to the outside of the container. Since the pressure of the fermentation gas inside the container is greater than the atmospheric pressure, the valve core opens, and the fermentation gas is discharged outward.

[0007] To facilitate the operation of the connecting shaft by the staff, a top cap is connected to the top of the connecting shaft, and the top cap extends out of the first mounting cavity.

[0008] The top cap has a connecting hole at its lower part and is connected to the connecting shaft through the connecting hole. The inner wall of the connecting hole has a first annular groove, and the outside of the connecting shaft has a first annular protrusion. The first annular protrusion engages with the first annular groove for easy installation.

[0009] The lower part of the top cap has multiple buffer notches, which allows the lower part of the top cap to deform and compress when it is installed into the first mounting cavity. The top cap is slidably installed relative to the first mounting cavity, and the two are tightly installed. It takes a little force to pull the top cap, thus avoiding it from being easily opened or accidentally touched.

[0010] The top cap extends out of the first mounting cavity and has an annular inner groove, which makes it easy for workers to hold it with their fingers.

[0011] The base plate has a ring structure, and the outside of the base plate is fitted into the inside of the second mounting cavity. The inside of the second mounting cavity is provided with a second annular groove, and the outer wall of the base plate is provided with a second annular protrusion, which engages with the second annular groove.

[0012] The mating surface between the valve port and the valve core is a conical surface, which ensures good sealing performance.

[0013] The valve port is provided with a stepped surface, and the upper part of the valve core conical surface is provided with a boss. The boss is located on the stepped surface to further ensure the tightness of the seal.

[0014] The valve body is provided with an external thread for connecting to a container or container lid, and a nut can be connected through the external thread. The nut is located inside the container or container lid and is used to axially limit one end of the exhaust valve. A limit plate is provided on the outside of the valve body. The limit plate fits against the outer surface of the container or container lid and is used to axially limit the other end of the exhaust valve.

[0015] The lower part of the connecting shaft is provided with multiple limiting posts, which can restrict one end of the spring on the connecting shaft.

[0016] The beneficial effects achieved by this utility model are: The exhaust valve of this utility model can be embedded in the container or container lid. When in use, the operator only needs to pull the connecting shaft to exhaust the gas inside the container. The operation is simple and quick. Under the premise of maintaining the basic seal of the container, the internal gas pressure can be adjusted so that the gas fermenting inside can be discharged in an orderly manner. When staff feel or hear a weak exhaust, they can loosen the connecting shaft. Under the action of gravity and the reaction of the spring, the valve core returns to its original position and seals the valve port, continuing to ensure sealing and thus preventing external gas from entering the container. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram (sectional view) of the structure of this utility model installed on the container lid. Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Valve body; 2. Top cap; 3. Limiting plate; 4. Nut; 5. External thread; 6. Annular groove; 7. Buffer notch; 8. Connecting hole; 9. Connecting shaft; 10. Through hole; 11. Container lid; 12. Limiting post; 13. Spring; 14. Boss; 15. Valve core; 16. Valve port; 17. Base plate; 18. Second annular protrusion; 19. First annular groove; 20. First annular protrusion. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: like Figure 1 , Figure 2 , Figure 3 As shown, an exhaust valve includes a valve body 1, which is a hollow cylindrical structure. A first mounting cavity and a second mounting cavity are respectively opened at both ends of the valve body 1, and the first and second mounting cavities are connected by a through hole 10. A connecting shaft 9 is slidably connected within the through hole 10, with both ends of the connecting shaft 9 extending into the first and second mounting cavities respectively. A base plate 17 is connected to the open end of the second mounting cavity, and a valve port 16 is opened on the base plate 17. A spring 13 is connected to the lower part of the connecting shaft 9, and a valve core 15 is connected to the lower part of the spring 13. The bottom of the valve core 15 can seal the valve port 16.

[0021] To facilitate the operation of the connecting shaft 9, a top cap 2 is attached to the top of the connecting shaft 9, extending into a first mounting cavity. A connecting hole 8 is provided at the bottom of the top cap 2, through which the connecting shaft 9 is connected. A first annular groove 19 is formed on the inner wall of the connecting hole 8, and a first annular protrusion 20 is provided on the outside of the connecting shaft 9. The first annular protrusion 20 engages with the first annular groove 19 for easy installation. Typically, the exhaust valve is made of plastic, enabling this engagement.

[0022] The top cap 2 is slidably installed relative to the first mounting cavity, and the two are tightly fitted together. It requires a little force to pull the top cap 2, thus preventing it from being easily opened or accidentally touched. The lower part of the top cap 2 has multiple buffer notches 7, which allow the lower part of the top cap 2 to undergo slight deformation when it is installed into the first mounting cavity, making it easier for the top cap 2 to be installed into the first mounting cavity.

[0023] The top cap 2 has an annular inner groove 6 at one end extending out of the first mounting cavity, which makes it easy for workers to pinch it with their fingers.

[0024] The second mounting cavity has a second annular groove inside, and the outer wall of the base plate 17 has a second annular protrusion 18, which engages with the second annular groove. The base plate 17 has an annular structure, and the outer side of the base plate 17 is fitted onto the inner wall of the second mounting cavity. A valve port 16 is opened at the bottom of the base plate 17.

[0025] The mating surface between the valve port 16 and the valve core 15 is a conical surface, which ensures good sealing performance.

[0026] A stepped surface is provided at the valve port 16, and a boss 14 is provided on the upper part of the conical surface of the valve core 15. The boss 14 is located on the stepped surface to further ensure the tightness of the seal.

[0027] The valve body 1 is provided with an external thread 5 on its exterior. The external thread 5 is used to connect with the threaded hole in the middle of the container lid 11. The valve body 1 can be connected to a nut 4 through the external thread 5. The nut 4 is located inside the container lid 11 and is used to axially limit one end of the exhaust valve. A limit plate 3 is provided on the exterior of the valve body 1. The limit plate 3 fits against the outer surface of the container lid 11 and is used to axially limit the other end of the exhaust valve.

[0028] Two limiting posts 12 are fixedly provided at the lower part of the connecting shaft 9. The limiting posts 12 can restrict one end of the spring 13 on the connecting shaft 9. During installation, the spring 13 is screwed onto the connecting shaft 9.

[0029] In practical use, the exhaust valve is embedded in the middle of the container lid 11. The end of the exhaust valve with the valve port 16 is inside the container lid 11, and the end with the top cap 2 is outside the container lid 11. When exhaust is needed, simply pull the top cap 2. The top cap 2 drives the connecting shaft 9. The connecting shaft 9 drives the valve core 15 away from the valve port 16 through the spring 13, so that the fermentation gas in the container flows from the valve port 16 through the second mounting cavity, the through hole 10, and the first mounting cavity in sequence, and then is discharged to the outside of the container. When the staff feels or hears that the exhaust is weak, they can loosen the top cap 2. Under the action of gravity and the reaction of the spring 13, the valve core 15 will automatically seal the valve port 16 to continue to ensure the sealing. Alternatively, the top cap 2 can be pressed slightly manually to further ensure that the valve core 15 returns to its original position.

Claims

1. An exhaust valve, characterized in that, The valve body (1) includes a valve body (1), with a first mounting cavity and a second mounting cavity at both ends. The first mounting cavity and the second mounting cavity open towards the outside of the valve body (1) and are connected by a through hole (10). A connecting shaft (9) is slidably connected in the through hole (10). The two ends of the connecting shaft (9) extend into the first mounting cavity and the second mounting cavity, respectively. A base plate (17) is connected to the opening end of the second mounting cavity. A valve port (16) is opened on the base plate (17). A spring (13) is connected to the lower part of the connecting shaft (9). A valve core (15) is connected to the lower part of the spring (13). The bottom of the valve core (15) can block the valve port (16).

2. The exhaust valve according to claim 1, characterized in that, The top of the connecting shaft (9) is connected to a top cap (2), which extends out of the first mounting cavity.

3. The exhaust valve according to claim 2, characterized in that, The top cap (2) has a connecting hole (8) at the bottom and is connected to the connecting shaft (9) through the connecting hole (8). The inner wall of the connecting hole (8) has a first annular groove (19). The outside of the connecting shaft (9) is provided with a first annular protrusion (20), and the first annular protrusion (20) is engaged with the first annular groove (19).

4. The exhaust valve according to claim 2, characterized in that, The lower part of the top cap (2) is provided with multiple buffer notches (7), and the top cap (2) can slide relative to the first mounting cavity.

5. The exhaust valve according to claim 2, characterized in that, The top cap (2) has an annular inner groove (6) extending out of the first mounting cavity.

6. The exhaust valve according to claim 1, characterized in that, The base plate (17) is an annular structure. The base plate (17) is sleeved inside the second mounting cavity. The second mounting cavity is provided with a second annular groove. The outer wall of the base plate (17) is provided with a second annular protrusion (18). The second annular protrusion (18) is engaged with the second annular groove.

7. The exhaust valve according to claim 1, characterized in that, The mating surface between the valve port (16) and the valve core (15) is a conical surface.

8. The exhaust valve according to claim 1, characterized in that, A stepped surface is provided at the valve port (16), and a boss (14) is provided on the upper part of the conical surface of the valve core (15), with the boss (14) located on the stepped surface.

9. The exhaust valve according to claim 1, characterized in that, The valve body (1) is provided with an external thread (5) and can be connected to a nut (4) through the external thread (5). A limit plate (3) is provided on the outside of the valve body (1).

10. The exhaust valve according to claim 1, characterized in that, The lower part of the connecting shaft (9) is provided with a plurality of limiting posts (12), which can limit one end of the spring (13) on the connecting shaft (9).

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