container two-way valve assembly

Abstract

This invention relates to a two-way valve assembly for a container. The assembly includes a two-way valve seat with a disc-shaped valve face on its outer surface. An internal conduction chamber is provided, and the lower end of the conduction chamber connects to an airflow path via a valve port. A cylindrical valve member with an axial structure is provided parallel to the working axis for movement. The cylindrical valve member has a butterfly valve disc with a deformable radial surface that axially covers the disc-shaped valve face, and an axial valve at its lower end that axially covers the valve port. A single downward press of the cylindrical valve member simultaneously opens the two-way airflow path, releasing pressure from either positive or negative pressure inside the container. This invention provides a valve assembly that integrates both positive and negative pressure bidirectional sealing and allows the user to release positive or negative pressure accumulated inside a container due to heat with a single press operation.

Description

Technical Field

[0001] This invention relates to a two-way valve assembly for a container. Background Technology

[0002] Common containers for food and beverage use include water bottles or lunch boxes. In order to keep the food warm, insulated water bottles or insulated lunch boxes have been developed. The temperature they keep can be hot or cold, or the temperature that changes due to time.

[0003] During the process, due to the thermal equilibrium effect of the internal space of the container caused by the structural heat transfer effect, the temperature is exchanged to the outside, and its heat preservation will decrease. During the decrease, the density of the internal gaseous space changes accordingly. This change includes the positive pressure of thermal expansion of the potential heat of the hot food in the early stage, and the negative pressure generated by the condensation of water molecules after cooling, which reduces the space ratio. This kind of pressure change is common in insulated lunch boxes. After hot food is placed in the insulated container and sealed, the hot air inside will expand. After cooling, the internal gaseous space will contract. Especially if the bento is eaten the next day, it needs to be refrigerated that night and will be ice cold the next day. This creates a large pressure difference due to thermal expansion and contraction. When opening the lid for consumption, it is difficult to open due to the large atmospheric pressure difference.

[0004] To address the aforementioned issues of positive and negative pressure inside the container, a common solution is to install a set of pressure valves within the container, such as... Figure 1 As shown, the container 10 combined with the lid 20 forms a sealed space inside, providing hot water for placement and expansion pressure. An airflow channel 13 is provided at one point on the lid 20. The airflow channel 13 can be sealed outwards by an elastic diaphragm 12 to achieve a sealed volume and prevent air leakage, thus maintaining heat preservation performance. The outer end is connected to an elastic button 11 with elastic reset. When the lid 20 is opened due to heat, the user presses the elastic button 11 to disengage the diaphragm 12 from the airflow channel 13. Atmospheric molecules can then move outwards from the airflow channel 13 to balance the atmospheric pressure. After balance, the lid 20 can be easily opened.

[0005] If container 10 is used as a lunch box, since the food stored is hot and in order to maintain the heat preservation effect, the membrane 12 is only a one-way outward seal. During the cooling process of the food, especially after refrigeration, a high negative pressure will be formed inside. This negative pressure will push the outside air through the airflow channel 13 and past the membrane 12 into the container 10. Therefore, bacteria from the outside air will also be drawn into the container 10, causing food contamination.

[0006] Please refer to the following: Figure 2As shown, another type of negative pressure storage container is designed to reduce the oxygen and water vapor content in the volume space. The lid 20 of this container is equipped with a vacuum valve 14 to remove the internal air. A pressure pump is provided to remove the air inside the container 10 from the vacuum valve 14. When the lid 20 is opened, it is difficult to open due to atmospheric pressure. Therefore, a pressure relief element 15 is provided at a corresponding location. By operating the pressure relief element 15, the internal atmospheric pressure is balanced with the external pressure, allowing the lid 20 to be opened. However, this type of valve assembly is only used for a single function of inward sealing.

[0007] In the past, there were containers that were convenient for home use. The valve assemblies mentioned above were all single-direction blocking functions, either inward or outward. The operating elements for releasing the blocking channel were also single-function. Summary of the Invention

[0008] The purpose of this invention is to provide a two-way valve assembly for containers, which provides a two-way sealing function for positive and negative pressure, suitable for use with containers that hold hot food and are subject to positive and negative pressure due to temperature changes. The user can release the positive or negative pressure accumulated in the internal space of the container with a single press operation.

[0009] This invention is implemented as follows: a container bidirectional valve assembly includes: a bidirectional valve seat that can be attached to a part of the container's exterior, with a conduction chamber inside; a disc-shaped valve face facing outwards perpendicular to a working axis; at least one airflow guide hole communicating with the conduction chamber within the circumferential surface of the disc-shaped valve face; a through hole in the center along the working axis; a push-cutting ring with an arc-shaped cut between the through hole and the disc-shaped valve face; a sliding port overlapping the working axis at the lower end; and a valve port on the outer side of the bottom end of the sliding port; and a cylindrical valve component, overlapping the working axis and assembled within the aforementioned bidirectional valve seat. The main body is equipped with a valve column that can move axially along the working axis and be elastically reset. A button is attached to the upper end of the valve column. There is a variable space between the outer diameter and the inner diameter of the through hole. A butterfly valve plate with elastic deformation is provided on the shoulder. The lower surface of the butterfly valve plate can cover the disc valve surface of the above-mentioned bidirectional valve seat. The butterfly valve plate and the valve column are connected by a hub. An axial valve is provided at the lower end of the valve column that can cover the valve port of the above-mentioned bidirectional valve seat. After the system is assembled, the elastic force of the butterfly valve plate makes the butterfly valve plate, the disc valve surface, the axial valve and the valve port of each component face each other in a surface-to-surface contact.

[0010] The disc valve surface has an annular valve groove recessed into its circumference. The annular valve groove has at least one airflow guide hole that connects to the conduction chamber. The lower surface of the disc valve plate has a round convex valve ring that can cover the annular valve groove on the disc valve surface.

[0011] The valve stem is pushed upwards and reset by the tension of an elastic element, with the limit being that the valve stem is pressed against the valve port in the axial direction.

[0012] The valve port and the valve face of the axial valve are constructed with conical surfaces facing each other, with the cone apex pointing upwards.

[0013] The radial angle of the sliding port is equal to that of the valve port, which is smaller than the diameter range of the valve port, and is provided with a plurality of guide grooves.

[0014] A container two-way valve assembly includes: a container; a cover body that can be airtightly sealed to the container; a structural space is recessed on the outer end surface of the cover body to provide for the two-way valve assembly; the two-way valve assembly further includes: a two-way valve seat that can be combined with the recessed structural space, with a conduction chamber inside; a disc-shaped valve face facing outward perpendicular to a working axis; at least one airflow guide hole communicating with the conduction chamber within the circumferential surface of the disc-shaped valve face; a through hole in the center along the working axis direction; a push-cutting ring with an arc-shaped cut surface between the through hole and the disc-shaped valve face; a sliding port overlapping the working axis at the lower end; and a valve port on the outer side of the bottom end of the sliding port. A columnar valve component, with its overlapping working axis, is assembled within the aforementioned bidirectional valve seat. The main body is equipped with a valve column that can move axially along the working axis and be elastically reset. A button is attached to the upper end of the valve column. There is a variable space between the outer diameter of the valve column and the inner diameter of the through hole. A butterfly valve plate with elastic deformation is provided on the shoulder. The lower surface of the butterfly valve plate can cover the disc valve surface provided by the aforementioned bidirectional valve seat. The butterfly valve plate and the valve column are connected by a hub. An axial valve is provided at the lower end of the valve column that can cover the valve port provided by the aforementioned bidirectional valve seat. After the system is assembled, the elastic force of the butterfly valve plate makes the butterfly valve plate, the disc valve surface, the axial valve, and the valve port components face each other in a surface-to-surface contact.

[0015] The disc valve surface has an annular valve groove recessed into its circumference. The annular valve groove has at least one airflow guide hole that connects to the conduction chamber. The lower surface of the disc valve plate has a round convex valve ring that can cover the annular valve groove on the disc valve surface.

[0016] The valve stem is pushed upward and reset by the tension of an elastic component, with the limit being that the axial direction of the valve stem presses against the valve port.

[0017] The valve port and the valve face of the axial valve are constructed with conical surfaces facing each other, with the cone apex pointing upwards.

[0018] The radial angle of the sliding port is equal to that of the valve port, which is smaller than the diameter range of the valve port, and is provided with a plurality of guide grooves.

[0019] This invention relates to a container bidirectional valve assembly, which integrates positive and negative pressure bidirectional sealing functions and allows users to release pressure within the container by a single press operation, controlling whether the pressure is positive or negative. The assembly includes a bidirectional valve seat with a disc-shaped valve face on the outer surface and a conduction chamber inside. The lower end is connected to an airflow path via a valve port. An axial cylindrical valve member is provided parallel to the working axis and is movably assembled with the cylindrical valve member. The cylindrical valve member has a butterfly valve plate that can deform under external force to axially cover the disc-shaped valve face, and an axial valve at the lower end that can axially cover the valve port. A single downward press of the cylindrical valve member simultaneously activates the butterfly valve plate and the axial valve to open the bidirectional airflow path and release pressure.

[0020] The bidirectional valve seat and cylindrical valve of this invention have a bidirectional sealing function that can block inward or outward depending on the positive and negative pressure state inside the temperature container. The assembly can be used in temperature containers with cold and hot changes, or in vacuum preservation bottles and jars.

[0021] The valve stem of this invention can be reset by the elastic action of an elastic element, ensuring that the butterfly valve plate and the axial valve can provide fixed-point support for the disc valve surface and valve port in the working space before operation.

[0022] The cylindrical valve of this invention is integrally molded from an elastic material, and has the ability to stretch and recover elastically.

[0023] The valve stem of the cylindrical valve of the present invention is axially supported by the sliding port and overlaps the working axis, allowing for axial movement. The sliding port provides a guide groove on the surface where the valve stem slides, providing airflow conduction. Attached Figure Description

[0024] Figure 1 A side view of a conventional container equipped with a pressure relief valve assembly.

[0025] Figure 2 One of the side views of a conventional container equipped with a pressure relief valve assembly.

[0026] Figure 3 This is a side view of the assembly structure of the present invention.

[0027] Figure 4 A side view showing the assembly of the present invention in preparation for completion.

[0028] Figure 5 This is a schematic diagram of the deformation of the butterfly valve plate provided in this invention.

[0029] Figure 6 This is a top view schematic diagram of the butterfly valve plate covering the annular valve groove of the present invention.

[0030] Figure 7 This is a schematic diagram of the butterfly valve disc of the present invention deforming inward toward the center under the pressure of the valve column.

[0031] Figure 8 This is a top view of the sliding port support valve column of the present invention.

[0032] Symbol explanation:

[0033] Container---10 Flexible push button---11 Diaphragm---12

[0034] Airflow channel---13 Vacuum valve---14 Pressure relief element---15

[0035] Cover---20 Structural Space---21 Two-Way Valve Seat---30

[0036] Disc valve face---31 Annular valve groove---310 Perforation---32

[0037] Airflow guide hole---33 Push-cut ring---34 Conductor chamber---35

[0038] Sliding port---36 Sliding tooth---360 Guide groove---361

[0039] Valve port---37 Positioning structure---38 Adjustment space---39

[0040] Button---40 Pressing surface---41 Column valve---50

[0041] Valve stem---51, butterfly valve disc---52, round convex valve ring---520

[0042] Spokes---521 Convergence---522 Axial Valve---53

[0043] Valve face---530 Hub---54 Elastic element---60

[0044] Airflow path---A Working axis---S Detailed Implementation

[0045] This invention relates to a container bidirectional valve assembly, which is a single unit with bidirectional sealing function. The user can release positive or negative pressure accumulated inside the container with a single press. The assembly includes a bidirectional valve seat with a disc-shaped valve face on its outer surface and a flow chamber inside. The lower end of the flow chamber is connected to an airflow path via a valve port. A cylindrical valve member with an axial structure is provided parallel to the working axis. The cylindrical valve member has a butterfly valve plate whose radial surface can deform under external force to axially cover the disc-shaped valve face, and an axial valve at its lower end to axially cover the valve port. During decompression, the user simply presses the cylindrical valve member downwards with the structural button, simultaneously actuating the butterfly valve plate and the axial valve to disengage from the disc-shaped valve face and the valve port, thus opening a bidirectional airflow path and releasing positive or negative pressure inside the container.

[0046] The cylindrical valve is pushed upward to reset by the tension of the elastic element of the positioning structure at the lower end combined with the bidirectional valve seat. The limit is that the axial valve of the valve column is pressed against the valve port. The valve column, butterfly valve plate and axial valve of the cylindrical valve are integrally formed of elastic material, which has elastic reset and extension capabilities. The maximum tension height of the elastic element is such that it does not affect the covering state of the butterfly valve plate on the disc valve surface.

[0047] The valve port and the valve face of the axial valve are respectively a conical structure with the cone apex facing upwards. The axial valve is connected by the lower end of a valve column. The valve column is axially supported by a sliding port. The radial direction of the sliding port is equal and smaller than the diameter range of the valve port. It is provided with a plurality of guide grooves. The guide grooves are spaced by sliding teeth. The inner surface of the sliding teeth allows the valve column surface to move and pivot.

[0048] This invention relates to a two-way valve assembly for containers, which integrates both positive and negative pressure bidirectional sealing and allows users to release the positive or negative pressure accumulated inside the container with a single press operation. It is suitable for any insulated container with temperature control features or pressure vacuum preservation containers. For details regarding the valve assembly structure and operation function, please refer to the following illustrations:

[0049] Please refer to the following first. Figure 3 The pressure relief assembly of the present invention has a bidirectional pressure barrier, which can release positive or negative pressure simultaneously in a single decompression operation. For example, it is implemented in the cover 20, and the cover 20 and the container 10 can be sealed together. The container 10 is a heat-insulating or ice-insulating container, or a temperature-maintaining container that changes from hot to cold or is frozen by external force.

[0050] The working direction of the assembly of the present invention can be coaxial with the working axis S of the container 10. The working axis S can also be offset from the center of the container 10. The columnar valve 50 and the bidirectional valve seat 30 are coaxial with the working axis S. The bidirectional valve seat 30 can be co-constructed with the structural space 21 provided in the cover 20, or can be integrally formed with the structural space 21.

[0051] The bidirectional valve seat 30 of the present invention has a through hole 32 axially opened along the working axis S. On the outer surface, a disc-shaped valve surface 31 is provided perpendicular to the working axis S. The disc-shaped valve surface 31 is circumferentially recessed with an annular valve groove 310. An airflow guide hole 33 is opened at the bottom of the annular valve groove 310 to conduct a centrally located guide chamber 35. The bottom is coaxial with the through hole 32 and the working axis S has a sliding port 36. A valve port 37 is formed outside the sliding port 36. The surface of the valve port 37 is perpendicular to the working axis S or is a conical inclined surface. The apex of the cone is located at the upper end of the working axis S. The diameter of the through hole 32 can be larger than that of the sliding port 36.

[0052] Between the annular valve groove 310 and the perforation 32, a push-cutting ring opening 34 is provided at the bottom of the annular valve groove 310, which protrudes from the periphery of the perforation 32. The upper surface of the push-cutting ring opening 34 is a curved cross section. The annular valve groove 310 is connected to the conduction chamber 35 through the airflow guide hole 33, and the conduction chamber 35 is connected to the valve port 37.

[0053] The valve stem 51 of the single-axis structure has a butterfly valve plate 52 with elastic deformation capability at the shoulder position. The butterfly valve plate 52 can cover the disc valve surface 31 downward. Corresponding to the cross-sectional curve of the annular valve groove 310, there is a circular convex valve ring 520 that protrudes downward. A button 40 is connected to the upper end of the valve stem 51. The diameter of the button 40 can be smaller than the structural space 21, so that it can be moved into the horizontal height range of the structural space 21.

[0054] The lower end of the valve stem 51 is an axial valve 53, which can be externally added or integrally formed with the valve stem 51. With its elastic deformation, it can be squeezed downward through the sliding port 36, resulting in the initial coaxial movement combination of the cylindrical valve member 50 and the bidirectional valve seat 30.

[0055] Please refer to the following: Figure 4 (Cooperate Figure 6 As shown in the figure, after assembly, the butterfly valve plate 52 of the cylindrical valve 50, under static conditions without external force, is a flat cover of the disc valve surface 31. The convex valve ring 520 corresponds to the shape of the annular valve groove 310 and is in an overlapping posture. The convex valve ring 520 also covers the upper port of the airflow guide hole 33, so that the guide chamber 35 can be sealed.

[0056] Another configuration involves an axial valve 53 located at the lower end of the valve stem 51. Through structural elasticity, the valve surface 530 with a tapered bevel is used to cover the valve port 37 of the bidirectional valve seat 30. The axial valve 53 blocks upwards, while the butterfly valve plate 52 blocks downwards into the annular valve groove 310. These two forces are achieved because the cylindrical valve member 50 is integrally molded from elastic material. After assembly, the butterfly valve plate 52 presses downwards, and the axial valve 53 blocks upwards, providing elastic preparatory forces for these forces. This allows the butterfly valve plate 52 to block the disc-shaped valve surface 31, and the axial valve 53 to block the valve port 37. The cylindrical valve member 50 is pushed upwards and reset by the tension of the elastic element 60, which is attached to the positioning structure 38 of the bidirectional valve seat 30 at its lower end. The limit is that the axial valve 53 of the valve stem 51 presses against the valve port 37, and the maximum tension height of the elastic element 60 does not affect the covering state of the butterfly valve plate 52 on the disc-shaped valve surface 31.

[0057] When used in the leak-proof operation of container 10, the hot air inside container 10 is pressurized. The process and result are achieved by the valve face 530 of the axial valve 53 being an oblique cone surface that is pressed axially upward against the valve port 37, thus obtaining a sealing force proportional to the pressurization process inside the container.

[0058] In another scenario, after the hot food inside container 10 cools down, or after cooking, it remains at a high temperature and will eventually become ice-cold after being placed in the refrigerator for a long time. In this case, the inside of container 10 will contract, creating negative pressure. This negative pressure is then blocked by the force of the butterfly valve plate 52 covering the disc valve surface 31 downwards, preventing atmospheric pressure from entering the inside of container 10. At the same time, it also blocks bacteria-laden air from entering the inside of container 10, thus protecting the food safety.

[0059] Regarding the negative pressure blocking operation, the disc valve face 31 and the disc valve plate 52 are sealed by the lower cover of the disc valve face 31 during the blocking process. (Please refer to the instructions.) Figure 6 As shown, the external pressure entering the container 10 can be blocked. In a preferred embodiment, the butterfly valve plate 52 corresponds to the annular valve groove 310 cross section of the disc valve surface 31, and is provided with an annular convex valve ring 520. The cross section of the convex valve ring 520 is convex, corresponding to the annular valve groove 310 recessed in the disc valve surface 31. The butterfly valve plate 52 is enlarged from the outer periphery of the convex valve ring 520 by a radiating edge 521 to increase the turning tightness. The bottom of the annular valve groove 310 is provided with an airflow guide hole 33 with a width smaller than the groove width of the annular valve groove 310. Between the inner edge of the annular valve groove 310 and the through hole 32, there is a push-cutting ring opening 34 protruding from the bottom height position of the annular valve groove 310. The push-cutting ring opening 34 is an arc curve, and the surface of the push-cutting ring opening 34 connects to the inner edge of the through hole 32 in the direction of the center of the valve column 51.

[0060] The present invention utilizes a bidirectional working bidirectional valve seat 30 and provides a bidirectional sealing structure. After the cylindrical valve component 50 is coaxially assembled, it can seal the positive or negative pressure inside the container 10 respectively.

[0061] Before consumption, the user simply presses the pressing surface 41 of button 40 downwards. The valve surface 530 of the axial valve 53 is disengaged from the valve port 37, and the butterfly valve plate 52 is torn and deformed to detach from the cover of the annular valve groove 310. This allows atmospheric pressure to be balanced inside the container 10 through the conduction chamber 35 and the airflow guide hole 33, facilitating the opening of the cover 20.

[0062] Please refer back again. Figure 5 Cooperate Figure 7 As shown, the single-time synchronous bidirectional opening of the airflow path A utilizes a variable space 39 between the outer circle of the valve column 51 and the inner circle of the perforation 32. During the pressing process of the downward pressing surface 41, the valve column 51, in conjunction with the elastic deformation of the butterfly valve plate 52, allows the butterfly valve plate 52 to disengage from the annular valve groove 310. This deformation is caused by the hub 54 of the valve column 51 pulling the spokes 522 downward through the variable space 39. Simultaneously, the lower surface of the spokes 522 and the curved surface of the convex valve ring 520 are successively subjected to... The space of the perforation 32 and the circular cutting action of the push-cutting ring 34 cause the overall radial surface of the butterfly valve plate 52 to be tapered and deformed downwards. At the same time, the outer radial convex valve ring 520 is pulled upwards through the push-cutting ring 34, causing the relative mating surfaces of the convex valve ring 520 and the annular valve groove 310 to open. Then, the airflow guide hole 33 forms a passage connecting the guide chamber 35. Through a single pressing operation, that is, if the valve port 37 is opened, the airflow path A that connects the guide chamber 35 and is guided outwards through the airflow guide hole 33 is opened.

[0063] When the pressing surface 41 of the button 40 is pressed down, the valve column 51 moves downward along the working axis S, and the valve surface 530 of the axial valve 53 disengages from the valve port 37. A gap is formed between the sliding port 36 and the radial surface of the valve column 51, allowing the pressure air inside the conduction chamber 35 to be guided by the valve port 37. The pressure air inside the container can then be guided inward or outward through the valve port 37.

[0064] When button 40 is pressed down, the hub 54 of the valve stem 51 connecting to the butterfly valve plate 52 sinks. The hub 54 is connected to the convex valve ring 520 via the concentric spokes 522, which have a larger elastic deformation. Therefore, the planar concentric spokes 522 deform into a cone shape, generating a tensile force in the direction of the valve stem 51 on the convex valve ring 520 and the spokes 521 (e.g., ...). Figure 7 As shown, during the process, the curved surface of the convex valve ring 520 slides over the curved upper surface of the push-cut ring opening 34. Since the upper surface of the push-cut ring opening 34 is higher than the bottom of the annular valve groove 310, the convex valve ring 520 slides upward, opening the airflow guide hole 33 on its belly, allowing the airflow guide hole 33 to conduct pressure. Although the strength of the convex valve ring 520 is greater than that of the radial 522, when the system is working, as long as there is a slight gap between the convex valve ring 520 and the airflow guide hole 33 of the annular valve groove 310, atmospheric pressure will follow the flow and achieve basic pressure relief.

[0065] Please refer to the following: Figure 8 As shown, the valve stem 51 is axially displaced along the working axis S in principle. In order to increase the stability of the valve stem 51 overlapping the working axis S, a protruding sliding tooth 360 is provided in the sliding port 36 in the direction of the working axis S. The sliding tooth 360 is spaced apart by a guide groove 361. The sliding tooth 360 and the surface of the valve stem 51 are in a sliding relationship. The guide groove 361 provides a path for air circulation. The diameter of the guide groove 361 is smaller than the circumferential diameter of the upper end of the valve port 37, so as not to affect the airtightness of the valve port 37.

[0066] This invention is a dual-function valve assembly for positive and negative pressure sealing. With a single, one-way press, it can simultaneously open the working valve inside the container, which is either positive or negative pressure due to the pressure state of the object being insulated, and balance it with atmospheric pressure. This allows the cover to be easily opened regardless of whether the container is in a positive or negative pressure state. The assembly can be used in insulated containers with positive or negative temperatures, or containers with hot or cold changes. It is an innovative valve assembly with dual-function sealing in one unit.

Claims

1. A container bidirectional valve assembly, characterized in that... It contains: A container; A cap body, capable of airtight sealing with the container, has a recessed structural space on its outer end surface to provide a two-way valve assembly, wherein the two-way valve assembly further includes: A bidirectional valve seat that can be combined with the above-mentioned recessed structural space has a conduction chamber inside. The body of the valve is a disc-shaped valve face that is perpendicular to a working axis. At least one airflow guide hole is provided in the circumferential area of ​​the disc-shaped valve face to connect with the conduction chamber, and a through hole is opened in the center along the working axis direction. A push-cutting ring with an arc-shaped surface is provided between the through hole and the disc-shaped valve face. A sliding port is opened at the lower end that overlaps with the working axis. A valve port is provided on the outside of the bottom end of the sliding port. A columnar valve component, with its working axis overlapping, is assembled within the aforementioned bidirectional valve seat. The main body is provided with a valve column that can move axially along the working axis and be elastically reset. A button is attached to the upper end of the valve column. There is a variable space between the outer diameter circle and the inner circle of the through hole. A butterfly valve plate with elastic deformation is provided on the shoulder. The lower surface of the butterfly valve plate can cover the disc-shaped valve surface provided by the aforementioned bidirectional valve seat. The butterfly valve plate and the valve column are connected by a hub. An axial valve is provided at the lower end of the valve column that can cover the valve port provided by the aforementioned bidirectional valve seat. The valve port and the valve surface of the axial valve have a conical structure with the cone apex facing upward. After the system is assembled, the elastic force of the butterfly valve plate makes the butterfly valve plate, the disc valve surface, and the axial valve and valve port components face each other in a surface-to-surface contact. The disc valve surface has an annular valve groove recessed into its circumference. Between the inner edge of the annular valve groove and the through hole, there is a push-cutting ring protruding from the bottom height of the annular valve groove. The push-cutting ring is an arc-shaped curve. The surface of the push-cutting ring connects to the inner edge of the through hole towards the center of the valve column. The annular valve groove has at least one airflow guide hole parallel to the working axis that connects to the conduction chamber. The lower surface of the disc valve plate has a round convex valve ring that can cover the annular valve groove provided on the disc valve surface.

2. The container bidirectional valve assembly according to claim 1, characterized in that the valve stem is pushed upward and reset by the tension of an elastic component, with the limit being that the axial valve stem is pressed against the valve port.

3. The container bidirectional valve assembly according to claim 1, characterized in that the radial angle of the sliding port is equal and smaller than the diameter range of the valve port, and is provided with a plurality of guide grooves.

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