Automatic pressure relief sealing valve, automatic pressure relief sealing cover and container thereof

Abstract

The invention relates to the technical field of automatic pressure relief sealing, discloses an automatic pressure relief sealing valve, an automatic pressure relief sealing cover and a container thereof, and aims to solve the problem that balance of pressure difference inside and outside the container and isolation of the inside and outside environment of the container cannot be considered at the same time. The automatic pressure relief sealing valve comprises a valve body, a first reed and a second reed, the valve body is provided with a sealing end, and a pressure relief flow channel and a pressurization flow channel are arranged in the valve body. A first through hole is formed in the pressure relief flow channel, and one end of the first reed is connected with the valve body. And in the flowing direction of the pressure relief flow channel, the other end of the first reed blocks the side, away from the sealing end, of the first through hole in a natural state. A second through hole is formed in the pressurizing flow channel, and one end of the second reed is connected with the valve body. And in the flowing direction of the pressurizing flow channel, the other end of the second reed blocks the side, close to the sealing end, of the second through hole in a natural state. Through the first reed and the second reed, the pressure relief flow channel and the pressurization flow channel can be automatically switched between the conduction state and the blocking state, and secondary action of external force is not needed.

Description

Technical Field

[0001] The present application relates to the technical field of automatic pressure relief sealing, and in particular to an automatic pressure relief sealing valve, an automatic pressure relief sealing cover and a container thereof. Background Art

[0002] When storing liquids or other substances in a container, it is often necessary to seal the container's opening to reduce the impact of the external environment on the substance, thereby extending the shelf life of the substance. However, fluctuations in external temperature and pressure, or partial evaporation of the substance inside the container, can create a significant pressure difference between the inside and outside of the container.

[0003] If a through hole is opened in the packaging structure of the container, although the pressure difference between the inside and outside of the container can be balanced through the through hole structure, the setting of the through hole structure will cause the preset substance in the container to be exposed to the external environment for a long time, thereby reducing the shelf life of the preset substance in the container. Summary of the Invention

[0004] The purpose of the present application is to provide an automatic pressure relief sealing valve, an automatic pressure relief sealing cover and a container thereof, aiming to solve the problem that the pressure difference balance between the inside and outside of the container and the isolation between the inside of the container and the external environment cannot be taken into account at the same time.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, some embodiments of the present application provide an automatic pressure relief sealing valve, comprising a valve body, a first reed and a second reed, the valve body having a sealing end, and a pressure relief channel and a pressure boosting channel being provided in the valve body. A first through hole is provided in the pressure relief channel, and one end of the first reed is connected to the valve body. Along the flow direction of the pressure relief channel, the other end of the first reed is located on a side of the first through hole away from the sealing end and blocks the first through hole in a natural state. A second through hole is provided in the pressure boosting channel, and one end of the second reed is connected to the valve body. Along the flow direction of the pressure boosting channel, the other end of the second reed is located on a side of the second through hole close to the sealing end and blocks the second through hole in a natural state.

[0007] Beneficial Effects: For example, in the case of a pressure relief channel and a pressure boost channel connecting the inside and outside of a container, the sealing end is the side of the valve body encapsulated within the container, i.e., the inside. In its natural state, the first reed, through its own elastic force, contacts or adheres to the side of the first through-hole away from the sealing end (i.e., the outside), and the second reed, through its own elastic force, contacts or adheres to the side of the second through-hole closer to the sealing end (i.e., the inside), thereby blocking the first and second through-holes. This means that the pressure relief channel and the pressure boost channel are blocked, thus isolating the inside and outside of the automatic pressure relief sealing valve.

[0008] Since the first and second reeds are elastic sheet structures, that is, in a natural state without any external force other than gravity (or the external force is smaller than the elastic restoring force), the first and second reeds can spontaneously block the first and second through holes.

[0009] When the air pressure inside the valve body is high, the first reed, which is blocking the outside of the first through hole, is pushed open by the internal air pressure, allowing the pressure relief passage to flow, thereby balancing the air pressure inside and outside the valve body. This continues until the pressure difference between the inside and outside of the pressure relief passage approaches or becomes equal, i.e., the pressure differential force on the inside of the first reed is less than its elastic restoring force, causing the first reed to spontaneously block the pressure relief passage again.

[0010] When the air pressure inside the valve body is low, the second reed, which is blocking the inside of the second through hole, is pushed open by the external air pressure, allowing the boost flow channel to flow, thereby balancing the air pressure inside and outside the valve body. This continues until the pressure difference between the inside and outside of the boost flow channel approaches or becomes equal, that is, the pressure differential force outside the second reed is less than its elastic restoring force, causing the second reed to spontaneously block the boost flow channel again.

[0011] Thus, within the valve body of the automatic pressure relief sealing valve, the first reed and the first through-hole cooperate, as well as the second reed and the second through-hole, to keep the pressure relief channel and the pressure boost channel blocked in their natural state, thereby isolating the inside and outside of the valve body. Thus, a container equipped with the automatic pressure relief sealing valve has a well-isolated state between its inside and outside, thereby effectively isolating and preserving the contents within the container. Furthermore, when a certain pressure differential exists between the inside and outside of the container, the pressure relief channel and the pressure boost channel are automatically balanced without the need for a secondary external force. When the pressure differential between the inside and outside is close to or equal, the pressure relief channel and the pressure boost channel remain blocked, maintaining isolation between the inside and outside of the container.

[0012] Furthermore, the bidirectional automatic balancing of internal and external pressures can solve the problem of deformation or automatic damage of the container caused by the positive and negative pressure differences between the inside and outside of the container. The device has good practicality and is quick and easy to use.

[0013] In some embodiments, the valve body includes a first valve housing and a first partition. The first partition is disposed in the first valve housing and a separated pressure regulating chamber and a vent chamber are formed therebetween. The pressure regulating chamber is disposed closer to the sealing end than the vent chamber.

[0014] The separator is provided with a first through hole and a second through hole, wherein the first through hole communicates with the pressure regulating chamber and the ventilation chamber, and the first reed is located in the ventilation chamber. The second through hole communicates with the pressure regulating chamber and the ventilation chamber, and the second reed is located in the pressure regulating chamber.

[0015] The first valve housing is provided with at least one pressure regulating hole, which is located at the sealing end and communicates with the pressure regulating cavity. The valve body is also provided with a first ventilation flow channel, one end of which is communicated with the ventilation cavity, and the other end of which is located at a position of the valve body away from the sealing end.

[0016] Among them, the pressure relief flow channel includes a pressure regulating hole, a pressure regulating cavity, a first through hole, a ventilation cavity and a first ventilation flow channel, and the pressure boost flow channel includes a first ventilation flow channel, a ventilation cavity, a second through hole, a pressure regulating cavity and a pressure regulating hole.

[0017] In some embodiments, the valve body further includes a second partition, which is located in the pressure regulating chamber and divides the pressure regulating chamber into a pressure relief chamber and a pressure boosting chamber.

[0018] The first through hole is connected to the pressure relief chamber and the vent chamber, and the second through hole is connected to the pressure boost chamber and the vent chamber.

[0019] The pressure regulating hole includes a pressure relief hole and a pressure boosting hole. The pressure relief hole is connected to the pressure relief chamber, and the pressure boosting hole is connected to the pressure boosting chamber.

[0020] In some embodiments, the first reed is located in the ventilation cavity, one end of the first reed is connected to the first partition, and the other end of the first reed blocks the first through hole in a natural state.

[0021] The second reed is located in the pressurizing chamber, one end of the second reed is connected to the first partition, and the other end of the second reed blocks the second through hole in a natural state.

[0022] In some embodiments, the automatic pressure relief sealing valve further includes a pressure relief pipe and a pressure increasing pipe.

[0023] The pressure relief pipe is connected to the first valve housing and communicates with the pressure relief hole.

[0024] The boost pipe is connected to the first valve housing and communicates with the boost hole, and the length of the boost pipe is greater than the length of the pressure relief pipe.

[0025] In some embodiments, the first reed and the second reed are metal reeds.

[0026] In some embodiments, the thickness of the first reed is 0.03-0.3 mm, and the thickness of the second reed is 0.03-0.3 mm.

[0027] In some embodiments, the automatic pressure relief sealing valve further includes a sealing coating, and the sealing coating is provided on at least one side of the first reed facing the first through hole.

[0028] In some embodiments, the automatic pressure relief sealing valve further includes a sealing coating, and the sealing coating is provided on at least one side of the second reed facing the second through hole.

[0029] In the second aspect, the embodiment of the present application also provides an automatic pressure relief sealing cover, comprising the automatic pressure relief sealing valve in the first aspect and a cover body, the automatic pressure relief sealing valve being arranged on the cover body, the cover body being provided with a second ventilation flow channel, and the second ventilation flow channel being connected to the pressure relief flow channel and the pressurization flow channel.

[0030] Beneficial effects: Since the automatic pressure relief sealing cover includes the automatic pressure relief sealing valve in the first aspect, the automatic pressure relief sealing cover has all the beneficial effects of the above-mentioned automatic pressure relief sealing valve, which will not be repeated here.

[0031] In some embodiments, the cover is made of wood, and the particle size of the gaps in the cover is 0.1-0.5 microns.

[0032] In a third aspect, an embodiment of the present application further provides a container, comprising the automatic pressure relief sealing cover in the second aspect and a can body, wherein the opening of the can body is sealed by the automatic pressure relief sealing cover.

[0033] Beneficial effects: That is, since the container includes the automatic pressure relief sealing cover in the second aspect, the container has all the beneficial effects of the above-mentioned automatic pressure relief sealing cover, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 A cross-sectional view of a first automatic pressure relief sealing valve provided in an embodiment of the present application;

[0036] Figure 2 A cross-sectional view of a second automatic pressure relief sealing valve provided in an embodiment of the present application;

[0037] Figure 3 A cross-sectional view of a third automatic pressure relief sealing valve provided in an embodiment of the present application;

[0038] Figure 4 A partially enlarged schematic diagram of a first through hole provided in an embodiment of the present application;

[0039] Figure 5 A partially enlarged schematic diagram of a second through hole provided in an embodiment of the present application;

[0040] Figure 6 A cross-sectional view of an automatic pressure relief sealing cover provided in an embodiment of the present application;

[0041] Figure 7A cross-sectional view of a container provided in an embodiment of the present application.

[0042] Reference numerals:

[0043] 100. Automatic pressure relief sealing valve;

[0044] 10. Valve body; 111. Sealing end; 112. First valve housing; 113. First partition; 114. Second valve housing; 115. Second partition; 116. Pressure relief pipe; 117. Pressurization pipe;

[0045] 121, pressure relief channel; 122, pressure boost channel; 123, first ventilation channel;

[0046] 131, first through hole; 132, second through hole; 14, pressure regulating chamber; 141, pressure relief chamber; 142, pressurization chamber; 15, ventilation chamber; 16, pressure regulating hole; 161, pressure relief hole; 162, pressurization hole;

[0047] 20. First reed;

[0048] 30, second reed;

[0049] 40. Sealing coating;

[0050] 200, automatic pressure relief sealing cover; 201, cover body; 202, second ventilation channel;

[0051] 300. Container; 301. Tank. DETAILED DESCRIPTION

[0052] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0053] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0054] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0055] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0056] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0057] The embodiment of the present application provides an automatic pressure relief sealing valve, an automatic pressure relief sealing cover and a container thereof. Figures 1 to 7 The automatic pressure relief sealing valve, the automatic pressure relief sealing cover and the container thereof according to the embodiments of the present application are described in detail.

[0058] First, see Figure 1 , Figure 1The present invention provides a cross-sectional view of an automatic pressure relief sealing valve 100 provided in an embodiment of the present application. The automatic pressure relief sealing valve 100 includes a valve body 10, a first reed 20, and a second reed 30. The valve body 10 has a sealing end 111, and a pressure relief flow channel 121 and a pressurization flow channel 122 are provided in the valve body 10. A first through hole 131 is provided in the pressure relief flow channel 121, and one end of the first reed 20 is connected to the valve body 10. Along the flow direction of the pressure relief flow channel 121, the other end of the first reed 20 is located on the side of the first through hole 131 away from the sealing end 111 and blocks the first through hole 131 in a natural state. A second through hole 132 is provided in the pressurization flow channel 122, and one end of the second reed 30 is connected to the valve body 10. Along the flow direction of the pressurization flow channel 122, the other end of the second reed 30 is located on the side of the second through hole 132 close to the sealing end 111 and blocks the second through hole 132 in a natural state.

[0059] That is, along the flow direction of the pressure relief channel 121, at least one end of the first reed 20 is located downstream of the first through-hole 131, and in its natural state, this end of the first reed 20 is affixed and blocked against the outside of the first through-hole 131 by the elastic restoring force. Along the flow direction of the pressure boost channel 122, at least one end of the second reed 30 is located downstream of the second through-hole 132, and in its natural state, this end of the second reed 30 is affixed and blocked against the inside of the second through-hole by the elastic restoring force.

[0060] The natural state means that, except for the reaction force exerted by gravity and the edge of the first through hole 131 on the first reed 20, the first reed 20 is not subjected to any other external forces (such as the pressure differential force across the two sides), or the effects of such other external forces are smaller than the elastic restoring force of the first reed 20. Correspondingly, the natural state of the second reed 30 means that, except for the reaction force exerted by gravity and the edge of the second through hole 132 on the second reed 30, the second reed 30 is not subjected to any other external forces (such as the pressure differential force across the two sides), or the effects of such other external forces are smaller than the elastic restoring force of the first reed 20.

[0061] Taking the example of pressure relief channel 121 and pressure boost channel 122 connecting the inside and outside of a container, the sealing end 111 is the side of the valve body 10 enclosed within the container, i.e., the inside. In its natural state, the first reed 20, through its own elastic force, contacts or adheres to the side of the first through hole 131 away from the sealing end 111 (i.e., the outside), and the second reed 30, through its own elastic force, contacts or adheres to the side of the second through hole 132 closer to the sealing end 111 (i.e., the inside), thereby blocking the first through hole 131 and the second through hole 132. This means that the pressure relief channel 121 and the pressure boost channel 122 are blocked, ensuring that the inside and outside of the automatic pressure relief sealing valve 100 are sealed and isolated.

[0062] Since the first reed 20 and the second reed 30 are elastic sheet structures, that is, in a natural state without any external force other than gravity (or the external force is smaller than the elastic restoring force), the first reed 20 and the second reed 30 can spontaneously block the first through hole 131 and the second through hole 132.

[0063] When the air pressure inside the valve body 10 is high, the first reed 20 blocking the outside of the first through hole 131 is pushed open by the internal air pressure, allowing the pressure relief passage 121 to flow, thereby balancing the air pressure inside and outside the valve body 10. This continues until the pressure difference inside and outside the pressure relief passage 121 approaches or becomes equal, that is, the pressure difference force inside the first reed 20 is less than its elastic restoring force, causing the first reed 20 to spontaneously block the pressure relief passage 121 again.

[0064] When the air pressure inside the valve body 10 is low, the second reed 30 blocking the inside of the second through hole 132 is pushed open by the external air pressure, allowing the pressurized flow channel 122 to flow, thereby balancing the air pressure inside and outside the valve body 10. This continues until the pressure difference inside and outside the pressurized flow channel 122 approaches or becomes equal, that is, the pressure difference outside the second reed 30 is less than its elastic restoring force, causing the second reed 30 to spontaneously block the pressurized flow channel 122 again.

[0065] Thus, within the valve body 10 of the automatic pressure relief sealing valve 100, the coordinated arrangement of the first reed 20 and the first through-hole 131, as well as the coordinated arrangement of the second reed 30 and the second through-hole 132, allows the pressure relief channel 121 and the pressurization channel 122 to remain blocked in a natural state, thereby isolating the inside and outside of the valve body 10. Thus, a container equipped with the automatic pressure relief sealing valve 100 has a well-isolated interior and exterior, thereby effectively isolating and preserving the contents within the container. Furthermore, when a certain pressure differential exists between the inside and outside of the container, the arrangement of the pressure relief channel 121 and the pressurization channel 122 automatically balances the pressure inside and outside the container without the need for a secondary external force. When the pressure differential between the inside and outside approaches or is equal, the pressure relief channel 121 and the pressurization channel 122 remain blocked, maintaining the isolation between the inside and outside of the container.

[0066] Furthermore, the bidirectional automatic balancing of internal and external pressures can solve the problem of deformation or automatic damage of the container caused by the positive and negative pressure differences between the inside and outside of the container. The device has good practicality and is quick and easy to use.

[0067] The first reed 20 and the second reed 30 may be metal reeds, such as stainless steel reeds or copper reeds, which have good elasticity, are stable, and are not prone to rust.

[0068] Alternatively, the first reed 20 and the second reed 30 may also be made of a polymer material with good elasticity.

[0069] The elastic modulus (i.e., the material's ability to resist elastic deformation) of the first and second reeds 20 and 30 can be adjusted by adjusting the thickness or material of the first and second reeds 20 and 30. A smaller elastic modulus results in a more sensitive first and second reeds 20 and 30. This means that a smaller pressure differential between the inside and outside of the valve body 10 is required to push the corresponding first and second reeds 20 and 30 apart, thereby balancing the internal and external pressures. A larger elastic modulus results in a greater pressure differential that the first and second reeds 20 and 30 can withstand in their natural state. This means that a greater pressure differential is required between the inside and outside of the valve body 10 to push the first and second reeds 20 and 30 apart, thereby balancing the internal and external pressures.

[0070] For example, the first reed 20 and the second reed 30 are ultra-thin metal reeds, for example, the thickness of the first reed 20 is 0.03-0.3 mm, and the thickness of the second reed 30 is 0.03-0.3 mm.

[0071] If the thickness of the first reed 20 and the second reed 30 is less than 0.03 mm, the elastic modulus of the first reed 20 and the second reed 30 will be small, that is, the first reed 20 and the second reed 30 will not be able to block the first through hole 131 and the second through hole 132 in the natural state. If the thickness of the first reed 20 and the second reed 30 is greater than 0.3 mm, the elastic modulus of the first reed 20 and the second reed 30 will be large, resulting in a large pressure difference inside the pressure relief channel 121 or outside the pressure boost channel 122, which is not conducive to the pressure balance between the inside and outside of the valve body 10. Based on this, by setting the thickness of the first reed 20 and the second reed 30 to 0.03-0.3 mm, for example, the thickness of the first reed 20 and the second reed 30 can be 0.03 mm, 0.06 mm, 0.09 mm, 0.12 mm, 0.15 mm, 0.18 mm, 0.21 mm, 0.24 mm, 0.27 mm, 0.3 mm, etc., so that the elastic modulus of the first reed 20 and the second reed 30 is within a suitable range. The thickness of the first reed 20 and the second reed 30 can be the same or different, and can be flexibly set according to needs, and is not limited to this.

[0072] In this way, the first reed 20 and the second reed 30 stably block the first through hole 131 and the second through hole 132 in their natural state, isolating the inside and outside of the valve body 10. Furthermore, the first reed 20 (or the second reed 30) can react sensitively to a small pressure differential, being pushed open by the pressure differential force and opening the pressure relief channel 121 (or the pressure boost channel 122), thereby balancing the air pressure inside and outside the valve body 10.

[0073] In some embodiments, as Figure 1 As shown, the valve body 10 includes a first valve housing 112 and a first partition 113. The first partition 113 is arranged in the first valve housing 112 and a pressure regulating chamber 14 and a vent chamber 15 are formed therebetween. The pressure regulating chamber 14 is arranged closer to the sealing end 111 than the vent chamber 15. That is, the pressure regulating chamber 14 is arranged closer to the inner side of the valve body 10, and the vent chamber 15 is arranged closer to the outer side of the valve body 10. The first partition 113 is provided with a first through hole 131 and a second through hole 132. The first through hole 131 connects the pressure regulating chamber 14 and the vent chamber 15, and the first reed 20 is located in the vent chamber 15. The second through hole 132 connects the pressure regulating chamber 14 and the vent chamber 15, and the second reed 30 is located in the pressure regulating chamber 14.

[0074] Continue to refer to Figure 1 The first valve housing 112 is provided with at least one pressure regulating hole 16, which is located at the sealing end 111 and communicates with the pressure regulating chamber 14. The valve body 10 is also provided with a first ventilation flow channel 123, one end of which communicates with the ventilation chamber 15, and the other end of which is located at a position of the valve body 10 away from the sealing end 111.

[0075] The pressure relief passage 121 includes a pressure regulating hole 16, a pressure regulating chamber 14, a first through hole 131, a vent chamber 15, and a first vent passage 123. High-pressure gas inside the valve body 10 can sequentially flow through the pressure regulating hole 16, the pressure regulating chamber 14, the first through hole 131, the vent chamber 15, and the first vent passage 123 to the outside, thereby balancing the air pressure inside and outside the valve body 10.

[0076] Correspondingly, the pressurizing flow channel 122 includes a first ventilation flow channel 123, a vent cavity 15, a second through hole 132, a pressure regulating cavity 14, and a pressure regulating hole 16. This allows high-pressure gas outside the valve body 10 to enter the interior through the first ventilation flow channel 123, the vent cavity 15, the second through hole 132, the pressure regulating cavity 14, and the pressure regulating hole 16 in sequence, thereby balancing the air pressure inside and outside the valve body 10.

[0077] It should be noted that the number of the pressure regulating hole 16 can be one, that is, the pressure regulating hole 16 can release the air pressure inside the valve body 10 through the first through hole 131, and the pressure regulating hole 16 can increase the air pressure inside the valve body 10 through the second through hole 132.

[0078] Alternatively, there may be multiple pressure regulating holes 16 , and the pressure relief channel 121 may discharge the inner air through at least some of the pressure regulating holes 16 , and the pressure boost channel 122 may also replenish air into the inner side through at least some of the pressure regulating holes 16 .

[0079] in, Figure 1The pressure regulating hole 16 in the dotted box of the pressure relief channel 121 and the pressure boosting channel 122 is used to illustrate the flow relationship between the pressure regulating hole 16 and the pressure relief channel 121 and the pressure boosting channel 122, and is not used to limit a certain pressure regulating hole 16 to be only used for the pressure relief channel 121 or the pressure boosting channel 122.

[0080] Correspondingly, the number of first ventilation flow passages 123 can be one, that is, the pressurization flow passage 122 and the pressure relief flow passage 121 enter and exit air through the same first ventilation flow passage 123. Alternatively, the number of first ventilation flow passages 123 can also be multiple, the pressure relief flow passage 121 can discharge the inner air through at least a portion of the first ventilation flow passages 123, and the pressurization flow passage 122 can also replenish air inwardly through at least a portion of the first ventilation flow passages 123.

[0081] in, Figure 1 The first ventilation flow channel 123 in the dotted box between the pressure relief flow channel 121 and the pressure boost flow channel 122 is used to illustrate the flow path relationship between the first ventilation flow channel 123 and the pressure boost flow channel 122 and the pressure relief flow channel 121, and is not used to limit a certain first ventilation flow channel 123 to be used only for the pressure relief flow channel 121 or the pressure boost flow channel 122.

[0082] Based on this, the dashed box representing the pressure relief channel 121 in the diagram of the embodiment of the present application is used to illustrate a possible air flow path during the internal pressure relief process. The dashed box representing the pressure boost channel in the diagram of the embodiment of the present application is used to illustrate a possible air flow path during the internal pressure boost process.

[0083] In some embodiments, as Figure 1 As shown, the valve body 10 includes a first valve housing 112 and a second valve housing 114, which are detachably connected to form a chamber in which the first partition 113 is installed. The detachable connection between the first valve housing 112 and the second valve housing 114 facilitates the assembly and disassembly of the first partition 113 for maintenance.

[0084] Alternatively, the first valve housing 112 may be provided as an integrated structure, that is, after the first partition 113 is installed in the split first valve housing 112, the split first valve housing 112 may be connected into an integrated closed structure by welding or hot melting, etc., which has better stability.

[0085] For example, the first valve housing 112 and the second valve housing 114 can be made of a metal sheet with a thickness of 0.1-1.5 mm. Since metal sheet has good ductility, it is convenient to use a stamping process to form the first valve housing 112 including multiple through-holes and cavities, and the second valve housing 114 of a predetermined shape. For example, the first valve housing 112 and the second valve housing 114 can be made of stainless steel.

[0086] The diameters of the first through hole 131 and the second through hole 132 are 1.0-4.0 mm. This size can be flexibly adjusted according to the actual size of the automatic pressure relief sealing valve 100 and the container volume. If the actual size of the automatic pressure relief sealing valve 100 is large and the container volume is large, the diameters of the first through hole 131 and the second through hole 132 can be set to 4.0 mm. This allows the pressure relief flow channel 121 and the pressure boost flow channel 122 in the conductive state to quickly balance the internal and external air pressures, thereby preventing the pressure relief flow channel 121 and the pressure boost flow channel 122 from being in the conductive state for a long time.

[0087] exist Figure 1 In the automatic pressure relief sealing valve 100 shown, the first through hole 131 and the second through hole 132 are connected to the pressure regulating hole 16 through the pressure regulating chamber 14, and the first through hole 131 and the second through hole 132 are connected to the first ventilation flow channel 123 through the ventilation chamber 15. The structure is simple and can achieve two-way pressure relief sealing through the configuration of the first reed 20 and the second reed 30.

[0088] In some embodiments, as Figure 2 As shown, the valve body 10 further includes a second partition 115, which is located within the pressure-regulating chamber 14 and divides the pressure-regulating chamber 14 into a pressure-relief chamber 141 and a pressure-increasing chamber 142. The first through-hole 131 connects the pressure-relief chamber 141 with the vent chamber 15, while the second through-hole 132 connects the pressure-increasing chamber 142 with the vent chamber 15. The pressure-regulating holes 16 include a pressure-relief hole 161 and a pressure-increasing hole 162. The pressure-relief hole 161 connects to the pressure-relief chamber 141, while the pressure-increasing hole 162 connects to the pressure-increasing chamber 142.

[0089] Thus, along the air flow direction, the pressure relief channel 121 includes the pressure relief hole 161, the pressure relief chamber 141, the first through hole 131, the ventilation chamber 15, and the first ventilation channel 123, which are connected in sequence. Along the air flow direction, the pressure boost channel 122 includes the first ventilation channel 123, the ventilation chamber 15, the second through hole 132, the pressure boost chamber 142, and the pressure boost hole 162, which are connected in sequence.

[0090] In this way, by providing separate and independent pressure relief chambers 141 and pressurization chambers 142, the automatic pressure relief valve 100 is independent of each other in the chambers near the inner fluid, thereby preventing the fluid that partially enters the pressure relief chamber 141 during the pressure relief process from affecting the performance of the second reed 30 during the pressurization process, thereby maintaining a high pressure regulation accuracy as a whole.

[0091] In some embodiments, as Figure 2As shown, the first reed 20 is located in the vent cavity 15, with one end of the first reed 20 connected to the first partition 113, and the other end of the first reed 20 in a natural state blocking the first through hole 131. The second reed 30 is located in the pressurizing cavity 142, with one end of the second reed 30 connected to the first partition 113, and the other end of the second reed 30 in a natural state blocking the second through hole 132.

[0092] For example, if the first separator 113 is a horizontally arranged I-shaped structure, the first separator 113 comprises two spaced-apart, parallel flanges and a web fixedly connected between the two flanges. This allows the first separator 113 to be directly assembled within the valve body 10, separating the vent chamber 15 and the pressure-regulating chamber 14 on the upper and lower sides of the web, facilitating the production and processing of the automatic pressure relief sealing valve 100.

[0093] Exemplarily, a second partition 115 is installed in the pressure regulating chamber 14 below the web to separate the pressure regulating chamber 14 into a pressure relief chamber 141 and a pressure boost chamber 142 .

[0094] The second separator 115 is connected to at least one side of the web near the sealing end 111 (i.e., the inner side). Accordingly, the web's outer side, corresponding to the pressure relief chamber 141, is connected to the first reed 20, which naturally blocks the outer side of the first through hole 131. And the web's inner side, corresponding to the pressurization chamber 142, is connected to the second reed 30, which naturally blocks the inner side of the second through hole 132. Simply installing the assembled first separator 113 within the first valve housing 112 allows the valve body 10 to automatically balance the internal and external pressure differential while maintaining a good sealing effect.

[0095] Based on this, since the first reed 20, the second reed 30, the second separator 115 and other components are connected and assembled with the first separator 113, it is only necessary to open the corresponding flow channels and through-hole structures on the first separator 113 and the first valve housing 112 in advance, and the first separator 113 can be encapsulated in the first valve housing 112 to complete the assembly of the automatic pressure relief sealing valve 100, which is conducive to simplifying the assembly process and improving assembly efficiency.

[0096] Alternatively, at least one end of the first reed 20 and the second reed 30 may be connected to the first valve housing 112 or the second partition 115 , which is not limited thereto.

[0097] In other embodiments, the valve body 10 may further include a third partition member disposed within the vent cavity 15 to separate the vent cavity 15 into a pressure relief vent cavity and a pressure boost vent cavity. The pressure relief vent cavity communicates with the first through hole 131, the first reed 20 is disposed within the pressure relief vent cavity, and the pressure relief vent cavity is provided with a first ventilation flow channel 123. Correspondingly, the pressure boost vent cavity communicates with the second through hole 132 and is provided with the first ventilation flow channel 123.

[0098] During the pressure relief process, air flows from the inside of the automatic pressure relief sealing valve 100 through the pressure relief hole 161, the pressure relief chamber 141, the first through hole 131, the pressure relief vent chamber, and the first ventilation flow channel 123, thereby reducing the internal ambient pressure. During the pressure increase process, air flows from the outside of the automatic pressure relief sealing valve 100 through the first ventilation flow channel 123, the pressure increase vent chamber, the second through hole 132, the pressure increase chamber 142, and the pressure increase hole 162, thereby increasing the internal ambient pressure. This balances the positive and negative pressures inside the automatic pressure relief sealing valve 100.

[0099] In some embodiments, as Figure 3 As shown, the automatic pressure relief sealing valve 100 also includes a pressure relief pipe 116 and a pressure boosting pipe 117. The pressure relief pipe 116 is connected to the first valve housing 112 and communicates with the pressure relief hole 161. The pressure boosting pipe 117 is connected to the first valve housing 112 and communicates with the pressure boosting hole 162. The length of the pressure boosting pipe 117 is greater than the length of the pressure relief pipe 116.

[0100] Thus, by providing the pressure-increasing pipe 117 and the pressure-relief pipe 116, the automatic pressure-relief sealing valve 100 can be flexibly installed at a corresponding position in the container. The pressure-increasing pipe 117 and the pressure-relief pipe 116 communicate with the internal space of the container, thereby facilitating timely and smooth adjustment of the pressure balance between the inside and outside of the container. Specifically, because the length of the pressure-increasing pipe 117 is greater than the length of the pressure-relief pipe 116, the end of the pressure-relief pipe 116 within the container is positioned higher than the end of the pressure-increasing pipe 117 (i.e., above the liquid level). This prevents the liquid within the container from flowing into the automatic pressure-relief sealing valve 100 through the pressure-relief pipe 116 or leaking during the pressure-relief process.

[0101] For example, because the end of the boost tube 117 is relatively low within the container, it is typically configured 10-50 mm above the liquid level within the container. This provides ample expansion capacity within the container to balance the internal and external pressure differentials. For example, even in a high-temperature environment within the container, the automatic pressure regulation requirements can be met within the range of 30-120°C.

[0102] In other embodiments, a third partition may be provided within the ventilation cavity 15 to separate the ventilation cavity 15 into a first ventilation cavity and a second ventilation cavity. The first ventilation cavity is provided with an independent first ventilation flow channel 123 that communicates with the first through hole 131. The first reed 20 is installed within the first ventilation cavity to block the first through hole 131. The second ventilation cavity is provided with an independent first ventilation flow channel 123 that communicates with the second through hole 132. The second reed 30 is installed within the pressurization cavity 142 to block the second through hole 132.

[0103] In this way, the pressure relief flow channel 121 and the pressure boosting flow channel 122 in the automatic pressure relief sealing valve 100 are independent of each other, the structure is more stable, and mutual interference during the pressure relief and pressure boosting processes can be avoided.

[0104] In some embodiments, as Figure 3 As shown, gap flow channels are formed between the left and right sides of the first partition 113 and the left and right inner walls of the first valve housing 112. These gap flow channels form part of the first ventilation flow channel 123. Accordingly, the two flange plates of the first partition 113 are provided with flange through-holes corresponding to the ventilation cavity 15, and the first valve housing 112 is provided with valve housing through-holes corresponding to the two flange through-holes, thereby forming the first ventilation flow channel 123 including the valve housing through-holes, the gap flow channels, and the flange through-holes.

[0105] Alternatively, a through hole structure communicating with the ventilation cavity 15 may be directly opened on the second valve housing 114 , and the through hole structure may also serve as the first ventilation flow channel 123 .

[0106] It should be noted that the first spring 20 is bent so that its end covers the first through hole 131 in a natural state and contacts and fits with the outer edge of the first through hole 131, thereby achieving a better isolation effect on the inner and outer sides of the pressure relief channel 121 in a natural state.

[0107] Correspondingly, the second spring 30 is bent so that its end covers the second through hole 132 in a natural state and contacts and fits with the inner edge of the second through hole 132, thereby achieving a better isolation effect on the inner and outer sides of the boost channel 122 in a natural state.

[0108] In some embodiments, as Figure 4 and Figure 5 As shown, the automatic pressure relief sealing valve 100 further includes a sealing coating 40. The first reed 20 is provided with a sealing coating 40 on at least one side facing the first through hole 131, and the second reed 30 is provided with a sealing coating 40 on at least one side facing the second through hole 132.

[0109] The sealing coating 40 can be provided on at least one of the first reed 20 and the second reed 30 as needed. For example, the sealing coating 40 can be made of a flexible material such as a rubber coating or a soft plastic coating to increase the contact area between the first reed 20 (or the second reed 30) and the edge of the first through hole 131 (or the second through hole 132), thereby improving the sealing effect of the pressure relief channel 121 (or the pressure boost channel 122).

[0110] Second, as Figure 6 As shown, the embodiment of the present application further provides an automatic pressure relief sealing cover 200, comprising the automatic pressure relief sealing valve 100 and a cover body 201 in the first aspect, wherein the automatic pressure relief sealing valve 100 is disposed on the cover body 201, and the cover body 201 is provided with a second ventilation flow channel 202, the second ventilation flow channel 202 (refer to Figure 3 ) is connected to the pressure relief channel 121 and the pressure boost channel 122.

[0111] For example, the automatic pressure relief sealing valve 100 can be installed on the inner side of the cover 201 (the side used to seal the container), or the automatic pressure relief sealing valve 100 can also be installed inside the cover 201. It is only necessary to open a corresponding second ventilation channel 202 on the cover 201 so that the pressure relief channel 121 or the pressure increase channel 122 can communicate with the inside and outside of the cover 201 when in the conductive state.

[0112] Since the automatic pressure relief sealing cover 200 includes the automatic pressure relief sealing valve 100 in the first aspect, the automatic pressure relief sealing cover 200 has all the beneficial effects of the automatic pressure relief sealing valve 100, which will not be described in detail here.

[0113] The lid 201 can be made of wood, and the slits in the lid 201 have a particle size of 0.1-0.5 microns. This allows a small amount of air from outside to enter the container through the tiny slits in the lid 201. This maintains a micro-oxygen environment inside the container even when the pressure difference between the inside and outside is insufficient, which helps to improve the preservation of wine and beer.

[0114] The wooden lid with a gap particle size of 0.1-0.5 microns has good viscosity and can maintain a stable state within the range of 10-100°C. Because the lid 201 has a gap particle size of 0.1-0.5 microns, the automatic pressure relief sealing valve disposed inside the lid 201 does not need to be equipped with a second ventilation channel 202. That is, the pressure relief channel 121 and the pressurization channel 122 can exchange air with the external environment through the 0.1-0.5 micron gap of the lid, thereby maintaining a stable air pressure inside the container.

[0115] The number of second ventilation flow channels 202 provided in the cover body 201 can be one or more. If the number of second ventilation flow channels 202 is one, one or more first ventilation flow channels 123 of the automatic pressure relief sealing valve 100 are electrically connected to the same second ventilation flow channel 202. If the number of second ventilation flow channels 202 is multiple, multiple first ventilation flow channels 123 can be provided in a one-to-one correspondence with multiple second ventilation flow channels 202, that is, one first ventilation flow channel 123 is electrically connected to one second ventilation flow channel 202.

[0116] Thus, the automatic pressure relief sealing cap 200 provided in the embodiment of the present application can be adapted to a variety of containers of different specifications and types, so that the container equipped with the automatic pressure relief sealing cap 200 can automatically balance the pressure inside and outside the container in both directions according to a preset pressure differential. The torque force of the gap between the cap body 201 and the container opening is generally 2.5-15N.

[0117] Thirdly, as Figure 7 As shown, the embodiment of the present application further provides a container 300, which includes a tank body 301 and the automatic pressure relief sealing cover 200 in the second aspect, and the opening of the tank body 301 is Figure 6 The self-depressurizing sealing cover 200 is shown encapsulated.

[0118] In this way, by installing the cover 201 with the automatic pressure relief sealing valve 100 at the opening of the tank body 301, the pressure can be automatically relieved or increased when there is a pressure difference between the inside and outside of the tank body 301, and the inside of the tank body 301 is naturally closed.

[0119] That is, since the container 300 includes the automatic pressure relief sealing cover 200 in the second aspect, the container 300 has all the beneficial effects of the automatic pressure relief sealing cover 200 described above, which will not be described in detail here.

[0120] For example, when Figure 3 The automatic pressure relief sealing valve 100 shown is used for Figure 7 When inside the tank body 301 shown.

[0121] If the ambient temperature outside the tank body 301 drops by 10-50°C, resulting in a lower external ambient pressure, the liquid and gas inside the tank body 301 will also cool down. However, because the liquid inside the tank body 301 cools down faster and its volume compression is smaller, the pressure inside the tank body 301 is higher than the external pressure. Some of the air inside the tank body 301 pushes open the first reed 20 through the first through hole 131 in the pressure relief channel 121, allowing the pressure relief channel 121 and the second ventilation channel 202 to be connected to the outside and release pressure until the pressure difference between the inside and outside of the tank body 301 is within a preset range.

[0122] During this process, under the force of the air inside the tank body 301, one end of the first reed 20 bounces back and forth along the axial direction of the first through hole 131 to keep the pressure relief channel 121 in a conductive state until the force of the internal air acting on the first reed 20 is less than the elastic restoring force of the first reed 20 (ignoring the influence of gravity), at which time the pressure relief channel 121 returns to a closed state.

[0123] Correspondingly, if the ambient temperature outside the tank body 301 rises by 30-80°C, resulting in a higher external ambient pressure, the liquid and gas inside the tank body 301 will also heat up. However, since the liquid inside the tank body 301 heats up faster and expands less in volume, the pressure inside the tank body 301 is lower than the external pressure. A portion of the external ambient air sequentially passes through the second ventilation channel 202 and pushes open the second reed 30 at the first through hole 131 of the boosting channel 122, thereby connecting the boosting channel 122 and the second ventilation channel 202 to the inside and outside and increasing the pressure until the pressure difference between the inside and outside of the tank body 301 is within a preset range.

[0124] During this process, under the force of the external ambient air, one end of the second reed 30 bounces back and forth along the axial direction of the second through hole 132 to keep the pressurized flow channel 122 in a conductive state until the force of the external ambient air acting on the second reed 30 is less than the elastic restoring force of the second reed 30 (ignoring the influence of gravity), at which time the pressurized flow channel 122 returns to a closed state.

[0125] In this way, the tank body 301 can automatically balance the internal and external pressures in both directions through the automatic pressure relief sealing structure, without the need for a secondary external force. As long as the tank body 301 itself generates a positive or negative pressure differential due to external factors, the automatic pressure relief sealing valve 100 and the automatic pressure relief sealing cover 200 of the present embodiment can be used to automatically release and fill the pressure, achieving a balancing effect, which is convenient, fast, and highly practical.

[0126] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0127] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An automatic pressure relief sealing valve, characterized in that: The valve body (10) comprises a valve body (10), a first reed (20) and a second reed (30); the valve body (10) has a sealing end (111), and a pressure relief flow channel (121) and a pressure boosting flow channel (122) are provided in the valve body (10); A first through hole (131) is provided in the pressure relief channel (121), and one end of the first reed (20) is connected to the valve body (10); along the flow direction of the pressure relief channel (121), the other end of the first reed (20) is located on a side of the first through hole (131) away from the sealing end (111) and blocks the first through hole (131) in a natural state; A second through hole (132) is provided in the pressurizing flow channel (122), and one end of the second reed (30) is connected to the valve body (10); along the flow direction of the pressurizing flow channel (122), the other end of the second reed (30) is located on a side of the second through hole (132) close to the sealing end (111) and blocks the second through hole (132) in a natural state.

2. The automatic pressure relief sealing valve according to claim 1, characterized in that: The valve body (10) comprises a first valve housing (112) and a first partition (113), wherein the first partition (113) is arranged in the first valve housing (112) and a pressure regulating chamber (14) and a venting chamber (15) are formed therebetween, wherein the pressure regulating chamber (14) is arranged closer to the sealing end (111) than the venting chamber (15); The separator is provided with a first through hole (131) and a second through hole (132), wherein the first through hole (131) is in communication with the pressure regulating chamber (14) and the vent chamber (15), and the first reed (20) is located in the vent chamber (15); the second through hole (132) is in communication with the pressure regulating chamber (14) and the vent chamber (15), and the second reed (30) is located in the pressure regulating chamber (14); The first valve housing (112) is provided with at least one pressure regulating hole (16), the pressure regulating hole (16) being located at the sealing end (111) and communicating with the pressure regulating chamber (14); the valve body (10) is further provided with a first ventilation flow channel (123), one end of the first ventilation flow channel (123) being communicated with the ventilation chamber (15), and the other end of the first ventilation flow channel (123) being arranged at a position of the valve body (10) away from the sealing end (111); The pressure relief flow channel (121) comprises the pressure regulating hole (16), the pressure regulating chamber (14), the first through hole (131), the ventilation chamber (15) and the first ventilation flow channel (123); and the pressure boost flow channel (122) comprises the first ventilation flow channel (123), the ventilation chamber (15), the second through hole (132), the pressure regulating chamber (14) and the pressure regulating hole (16).

3. The automatic pressure relief sealing valve according to claim 2, characterized in that: The valve body (10) further comprises a second partition (115), the second partition (115) being located in the pressure regulating chamber (14), and the second partition (115) dividing the pressure regulating chamber (14) into a pressure relief chamber (141) and a pressure boost chamber (142); The first through hole (131) is in communication with the pressure relief chamber (141) and the vent chamber (15), and the second through hole (132) is in communication with the pressurization chamber (142) and the vent chamber (15); The pressure regulating hole (16) comprises a pressure relief hole (161) and a pressure boosting hole (162); the pressure relief hole (161) is connected to the pressure relief chamber (141); and the pressure boosting hole (162) is connected to the pressure boosting chamber (142).

4. The automatic pressure relief sealing valve according to claim 3, characterized in that: The first reed (20) is located in the ventilation cavity (15), one end of the first reed (20) is connected to the first partition (113), and the other end of the first reed (20) blocks the first through hole (131) in a natural state; The second reed (30) is located in the boost chamber (142), one end of the second reed (30) is connected to the first partition (113), and the other end of the second reed (30) blocks the second through hole (132) in a natural state.

5. The automatic pressure relief sealing valve according to claim 3, characterized in that: The automatic pressure relief sealing valve also includes: a pressure relief pipe (116), the pressure relief pipe (116) being connected to the first valve housing (112) and communicating with the pressure relief hole (161); and A boost pipe (117), the boost pipe (117) is connected to the first valve housing (112) and communicates with the boost hole (162), and the length of the boost pipe (117) is greater than the length of the pressure relief pipe (116).

6. The automatic pressure relief sealing valve according to any one of claims 1 to 5, characterized in that: The first reed (20) and the second reed (30) are metal reeds; and / or, The thickness of the first reed (20) is 0.03-0.3 mm, and the thickness of the second reed (30) is 0.03-0.3 mm.

7. The automatic pressure relief sealing valve according to any one of claims 1 to 5, characterized in that: The automatic pressure relief sealing valve further includes a sealing coating (40); The sealing coating (40) is provided on at least one side of the first reed (20) facing the first through hole (131); and / or, The sealing coating (40) is provided on at least one side of the second reed (30) facing the second through hole (132).

8. An automatic pressure relief sealing cover, characterized in that: include: The automatic pressure relief sealing valve according to any one of claims 1 to 7; as well as, The cover body (201) is provided with the automatic pressure relief sealing valve. The cover body (201) is provided with a second ventilation flow channel (202). The second ventilation flow channel (202) is connected to the pressure relief flow channel (121) and the pressurization flow channel (122).

9. The automatic pressure relief sealing cover according to claim 8, characterized in that: The cover (201) is made of wood material, and the particle size of the gaps in the cover (201) is 0.1-0.5 micrometers.

10. An automatic pressure relief sealed container, characterized in that: include: The automatic pressure relief sealing cover according to claim 8 or 9; as well as, A tank body (301), wherein the opening of the tank body (301) is sealed by the automatic pressure relief sealing cover.

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