Packaging structure

Abstract

A packaging structure (100), comprising an outer bag (10), a sealing member (30), an inner bag (20), and a material passing member (40). The outer bag (10) has an inlet / outlet (11). The sealing member (30) is connected to the outer bag (10) and is configured to close or open the inlet / outlet (11). The inner bag (20) is received in the outer bag (10) and the inner bag (20) is used for receiving a material. The packaging structure (100) further comprises the material passing member (40). The material passing member (40) is connected to the inner bag (20) and can be received in the outer bag body (10) or extend out of the outer bag (10) from the inlet / outlet. The material passing member (40) is configured to form, when extending out of the outer bag body (10) through the inlet / outlet (11), a material passing port (24) communicated with the interior of the inner bag (20). According to the packaging structure, feeding and discharging at a same position can be achieved by means of the material passing port (24) of the material passing member (40), and when feeding and discharging is not required, the outer bag (10) is closed by means of the sealing member (30), thereby ensuring the sealing performance in the inner bag (20); the feeding and discharging are simple and are convenient to operate, and no powder spraying accident would occur.

Description

Packaging structure

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 2023224765495, filed on September 12, 2023, entitled “Packaging Structure”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of battery processing technology, and in particular to a packaging structure. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] During the battery production process, packaging bags are needed to transport battery powder. However, existing packaging bags generally have materials fed from the top and discharged from the bottom, which can easily cause powder spraying and leakage accidents due to falling materials from the bottom.

[0006] Summary of the Invention

[0007] In view of the above problems, the present application provides a packaging structure.

[0008] In the first aspect, the present application provides a packaging structure, including an outer bag body, a sealing piece, an inner bag body and a material passing piece. The outer bag body has an entrance and exit. The sealing piece is connected to the outer bag body and is constructed to be able to close or open the entrance and exit. The inner bag body is accommodated in the outer bag body and the inner bag body is used to accommodate materials. The packaging structure also includes a material passing piece, which is connected to the inner bag body and can be accommodated in the outer bag body or extend out of the outer bag body from the entrance and exit. The material passing piece is configured to be able to generate a material passing port connected to the inner bag body when it extends out of the outer bag body through the entrance and exit.

[0009] In the technical solution of the embodiment of the present application, loading and unloading of materials can be achieved at a unified position through the feeding port of the feeding piece, and the outer bag body can be closed by the sealing piece when loading and unloading of materials is not required, thereby ensuring the sealing of the inner bag body. Loading and unloading of materials are simple and easy to operate, and there will be no powder spraying or powder leakage accidents.

[0010] In some embodiments, the feed member is configured so that a local surface thereof is punctured to form a feed opening.

[0011] In the technical solution of the embodiment of the present application, a puncture method is used to form a feeding port, which is easy to operate and does not require additional openings to be set on the inner bag body, thereby ensuring the sealing effect of the inner bag body.

[0012] In some embodiments, the material transfer piece is configured to be deformed by a force so as to be accommodated in the outer bag or extend out of the outer bag from the outlet.

[0013] In the technical solution of the embodiment of the present application, a variability setting is set for the material passing piece, so that the material passing piece does not affect the inner bag body when switching states, and when the material passing piece is accommodated in the outer bag body after producing a material passing opening, since the material passing piece is flattened to a certain extent, the material passing opening is equivalent to being closed to a certain extent, thereby further improving the sealing effect of the inner bag body.

[0014] In some embodiments, the sealing member includes a first body and a second body, the first body is arranged on the outer bag body and surrounds the outer periphery of the entrance and exit, and the second body can be overlapped or separated from the first body to close or open the entrance and exit.

[0015] In the technical solution of the embodiment of the present application, different cooperation states with the first body are achieved by switching the different positions of the second body, so that when the inner bag body needs to be loaded or unloaded, the entrance and exit are opened, and when the inner bag body does not need to be loaded or unloaded, the entrance and exit are closed to keep the inner bag body sealed.

[0016] In some embodiments, the second body includes a connecting end and a moving end, the connecting end is connected to the first body, and the moving end can rotate around the connecting end to connect with or separate from the first body.

[0017] In the technical solution of the embodiment of the present application, by connecting the connecting end to the first body, a connection at a certain angle between the first body and the second body can be achieved, and the size of the angle can be changed as the moving end rotates.

[0018] In some embodiments, the inner bag body has a first top surface, a first bottom surface and a first side surface located therebetween, the feed piece is connected to the first top surface, and the outer bag body is fixedly connected to at least a portion of the first side surface.

[0019] In the technical solution of the embodiment of the present application, the inner bag body and the outer bag body are fixed together to improve the structural strength and avoid deformation of the inner bag body or the outer bag body.

[0020] In some embodiments, the outer bag body includes a second top surface, a second bottom surface and a second side surface located therebetween, the entrance and exit are provided on the second top surface, the second top surface is opposite to the first top surface, and the second bottom surface is opposite to the first bottom surface.

[0021] In the technical solution of the embodiment of the present application, the shape of the outer bag body is maintained by adhering the second side surface of the inner bag body to the first side surface. For example, when the outer bag body is a woven bag structure, without support, the outer bag body cannot form a fixed shape, and a large space is easily created between the two. Furthermore, the ratio of the area of ​​the region where the first side surface and the second side surface are restricted to adhere to each other to the total area of ​​the first side surface is greater than or equal to 50%, ensuring that the first side surface can be adhered to the second side surface over a larger area, thereby ensuring the connection strength between the inner bag body and the outer bag body.

[0022] In some embodiments, the packaging structure further includes a support member connected between the inner bag body and the outer bag body; the support member is respectively connected to the first top surface and the second top surface, and / or the support member is respectively connected to the first bottom surface and the second bottom surface.

[0023] In the technical solution of the embodiment of the present application, the support member is used to support and fix the first top surface and the second top surface, and / or support and fix the first bottom surface and the second bottom surface, so as to enhance the strength and flatness of the inner bag body and the outer bag body, alleviate the deformation of the inner bag body during the loading and unloading process, and thus improve the structural strength of the packaging structure.

[0024] In some embodiments, the packaging structure further includes a hanging piece, which is connected to the outer bag body and extends toward a side of the outer bag body where the entrance and exit are provided.

[0025] In the technical solution of the embodiment of the present application, the external lifting equipment lifts the entire packaging structure through the lifting part, thereby transporting the materials in the packaging structure to the designated location.

[0026] In some embodiments, the hanging piece includes multiple ears, the outer bag body includes a second top surface, a second bottom surface and a second side surface located therebetween, the entrance and exit are arranged on the second top surface, and the multiple ears are connected to the second side surface at intervals and all extend toward one side of the second top surface.

[0027] In the technical solution of the embodiment of the present application, the lifting lug is arranged on the second side surface, which is equivalent to applying force to the outer edge of the packaging structure during lifting, thereby ensuring the tensile strength and sealing and moisture-proof properties of the packaging structure.

[0028] The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 embodiments of the present application. Obviously, the following descriptions are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on the drawings without inventive effort.

[0030] FIG1 is a schematic structural diagram of a packaging structure provided by the present application according to one or more embodiments;

[0031] FIG2 is a schematic structural diagram of the inner bag body of the packaging structure provided in FIG1 ;

[0032] FIG3 is a schematic structural diagram of the outer bag body of the packaging structure provided in FIG1 .

[0033] 100. Packaging structure; 10. Outer bag body; 11. Inlet and outlet; 12. Second top surface; 13. Second bottom surface; 14. Second side surface; 20. Inner bag body; 21. First top surface; 22. First bottom surface; 23. First side surface; 24. Feed port; 30. Sealing member; 31. First main body; 32. Second main body; 321. Connecting end; 322. Moving end; 40. Feeding member; 50. Support member; 60. Lifting member; 61. Lifting ear. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0037] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical 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., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do 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 the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0042] Solar cells, as green energy sources, are currently seeing increasing market adoption. They are not only used in photovoltaic power generation systems like solar power plants, but are also increasingly being incorporated into electrical devices like electric vehicles. As the application of solar cells continues to expand, market demand is also growing.

[0043] During the production and preparation of solar cells, a variety of powders are required, and packaging bags are generally used to transport the powders. However, existing packaging bags generally have upper feeding and lower discharge, and when discharging, the powders pour down, which is prone to powder spraying and leakage accidents.

[0044] Based on this, in order to solve the problem of powder unloading in existing packaging bags, the present application provides a packaging structure, forming a double-layer bag structure, and a feeding piece is set on one side. The feeding piece forms a feeding port that can be used for feeding and discharging, realizing feeding and discharging on the same side, and is easy to operate.

[0045] According to some embodiments of the present application, referring to Figures 1 to 3, the present application provides a packaging structure 100, including an outer bag body 10, a sealing piece 30, an inner bag body 20 and a feeding piece 40. The outer bag body 10 has an entrance and exit 11, the sealing piece 30 is connected to the outer bag body 10 and is constructed to be able to close or open the entrance and exit 11, the inner bag body 20 is accommodated in the outer bag body 10 and the inner bag body 20 is used to accommodate materials, wherein the feeding piece 40 is connected to the inner bag body 20 and can be accommodated in the outer bag body 10 or extend out of the outer bag body 10 from the entrance and exit 11, and the feeding piece 40 is configured to be able to generate a feeding port 24 connected to the inner bag body 20 when it extends out of the outer bag body 10 through the entrance and exit 11.

[0046] The inner bag body 20 is accommodated in the outer bag body 10 to form a double-layer bag structure, and the material is stored in the inner bag body 20, so that the sealing effect is better, and the air is effectively isolated to prevent moisture from penetrating from the outside into the material and damaging the material.

[0047] It can be understood that the volume of the inner bag body 20 is smaller than the volume of the outer bag body 10. The inner bag body 20 can have a fixed shape or not. When the inner bag body 20 has a fixed shape, the outer bag body 10 can be stretched by the inner bag body 20 to form a certain shape, or the outer bag body 10 itself has a fixed shape to accommodate the inner bag body 20.

[0048] The feeding piece 40 refers to a structure through which external materials can enter the inner bag body 20. The feeding piece 40 also refers to a structure used to extract materials in the inner bag body 20 and make them leave the inner bag body 20. When the feeding piece 40 extends out of the outer bag body 10 from the entrance and exit 11, the feeding piece 40 can produce a feeding port 24 that is connected to the inner bag body 20. At this time, the external loading equipment can partially extend into the feeding piece 40 through the feeding port 24 to load the materials. After the loading is completed, the external loading equipment is withdrawn, and the feeding piece 40 is retracted from the entrance and exit 11 into the outer bag body 10, and the entrance and exit 11 is closed by the sealing piece 30 to complete the loading.

[0049] When the feeding piece 40 extends out of the outer bag body 10 from the entrance and exit 11, the outer bag body 10 can generate a feeding port 24 connected to the inner bag body 20. At this time, the external extraction equipment can partially extend into the feeding piece 40 through the feeding port 24 to discharge the material. After the discharge is completed, the external discharge equipment is withdrawn, the feeding piece 40 is retracted from the entrance and exit 11 into the outer bag body 10, and the entrance and exit 11 is closed by the sealing piece 30 to complete the discharge.

[0050] It is understood that the feed member 40 has two forms: the first is a loading or unloading form extending from the outer bag body 10 through the outlet 11, and the second is a contained state within the outer bag body 10. This determines that the feed member 40 can move relative to the outer bag body 10 or deform under force to switch between the two forms. The shape and material of the feed member 40 are not limited, and the form of the feed opening 24 can be formed by the feed member 40 itself and opened when extending from the outlet 11, or formed after extending from the outlet 11.

[0051] The sealing member 30 is a structure capable of closing or opening the entrance 11 of the outer bag body 10. When the sealing member 30 closes the entrance 11, it is positioned above or below the entrance 11, completely obstructing the entrance 11. The material transfer member 40 is housed within the outer bag body 10. The sealing member 30 can be bonded, snapped, or otherwise connected to the outer bag body 10. When loading or unloading materials, an external force is applied to separate the sealing member 30 from the outer bag body 10. The sealing member 30 moves relative to the entrance 11, exposing the entrance 11 and allowing the material transfer member 40 housed within the outer bag body 10 to pass through the entrance 11 and out of the outer bag body 10.

[0052] In this way, the packaging structure 100 provided in the present application can realize loading and unloading at a unified position through the feeding port 24 of the feeding piece 40, and the outer bag body 10 is closed by the sealing piece 30 when loading and unloading is not required, thereby ensuring the sealing inside the inner bag body 20. Loading and unloading are simple and easy to operate, and there will be no powder spraying or powder leakage accidents.

[0053] In some embodiments, optionally, the feed member 40 is configured to have a partial surface thereof punctured to form the feed opening 24 .

[0054] When the feeding piece 40 extends out of the outer bag body 10 through the entrance and exit 11, a sharp tool such as a knife or an object with a sharp head can be used to pierce the local surface of the outer bag body 10 to form a feeding port 24, so that an external loading device or an external unloading device can extend into the feeding piece 40 through this feeding port 24 to load material into the inner bag body 20 or extract the material in the inner bag body 20.

[0055] Specifically, since the local surface of the feeding piece 40 can be punctured, the material of the feeding piece 40 is not easy to be too hard, and can be formed of aluminum foil, polyethylene, etc., so that it can be punctured by a sharp tool such as a knife to produce a feeding port 24. The entrance and exit 11 of the feeding port 24 is not easy to be too large to avoid affecting the sealing of the inner bag body 20.

[0056] The material passing port 24 is formed by puncturing, which is easy to operate and does not require additional openings to be provided on the inner bag body 20 , thereby ensuring the sealing effect of the inner bag body 20 .

[0057] In some embodiments, optionally, the material transfer member 40 is configured to be deformed by a force so as to be accommodated in the outer bag 10 or extend out of the outer bag 10 from the entrance 11 .

[0058] When the feeding piece 40 is accommodated in the outer bag body 10, the sealing piece 30 is operated to open the entrance and exit 11. The feeding piece 40 is stretched out of the outer bag body 10 from the entrance and exit 11 through manual or robotic operation to form a certain shape, such as a cylinder, a square or other irregular shape. At this time, a feeding passage is formed inside the feeding piece 40 that is connected to the inner bag body 20. The surface of the feeding piece 40 is punctured by a sharp object to produce a feeding port 24. The external loading equipment or the external unloading equipment extends into the interior of the feeding piece 40 through the feeding port 24. At this time, the material enters the inner bag body 20 from the feeding channel, or is drawn out from the inner bag body 20 through the feeding channel.

[0059] Then, the feeding piece 40 is flattened and retracted through the inlet and outlet 11 to be completely accommodated in the outer bag body 10 by manual or robotic operation, and the sealing piece 30 is operated to close the inlet and outlet 11 to complete the loading or unloading process.

[0060] It can be understood that if the local surface of the feeding piece 40 has been punctured to form the feeding port 24 when feeding, the feeding piece 40 with the feeding port 24 can be flattened and accommodated in the outer bag body 10. When the material needs to be unloaded, the feeding piece 40 can be directly stretched out of the outer bag body 10 from the entrance 11.

[0061] The feeding piece 40 is configured to be deformable so that the feeding piece 40 does not affect the inner bag body 20 when switching states, and when the feeding piece 40 produces the feeding opening 24 and is accommodated in the outer bag body 10, the feeding piece 40 is flattened to a certain extent, and the feeding opening 24 is equivalent to being closed to a certain extent, thereby further improving the sealing effect of the inner bag body 20.

[0062] In some embodiments, optionally, the sealing member 30 includes a first body 31 and a second body 32, the first body 31 is arranged on the outer bag body 10 and surrounds the outer periphery of the entrance and exit 11, and the second body 32 can be overlapped or separated with the first body 31 to close or open the entrance and exit 11.

[0063] The first body 31 and the second body 32 together form the whole of the sealing member 30. The first body 31 is arranged around the outer periphery of the entrance and exit 11, which means that an opening larger than or equal to the entrance and exit 11 is formed in the middle of the first body 31. It is connected to the outer bag body 10 and the opening is aligned with the entrance and exit 11. At this time, as long as the opening in the middle of the first body 31 is opened, it means that the entrance and exit 11 is opened, and as long as the opening in the middle of the first body 31 is closed, it means that the entrance and exit 11 is closed.

[0064] The first body 31 and the second body 32 can be stacked and connected by means of snapping, bonding, or the like to close the opening of the first body 31, that is, to close the inlet 11. In this case, the second body 32 covers the inlet 11 to completely enclose the outer bag 10. At least a portion of the second body 32 can be displaced relative to the first body 31 to expose the inlet 11, and the material transfer portion can extend from the inlet 11 to the outer bag 10.

[0065] In a specific embodiment, the first body 31 and the second body 32 form a Velcro structure. When the first body 31 and the second body 32 are stacked, the two are adhered to each other. If the two need to be separated, external force is applied manually or by a robot to tear open the adhered parts of the two.

[0066] In other embodiments, a first engaging portion, such as a snap fastener, may be provided on the first body 31, and a second engaging portion, such as a snap slot, may be provided on the second body 32. When the second body 32 approaches the first body 31, the first engaging portion and the second engaging portion engage with each other, thereby achieving a stacked connection between the first and second bodies 31, 32. When the second body 32 needs to be separated from the first body 31, an external force is applied to release the engagement between the first and second engaging portions, thereby controlling the second body 32 to move away from the first body 31, thereby opening the entrance 11.

[0067] It can be understood that by switching the different positions of the second main body 32, different cooperation states with the first main body 31 are achieved, so that when the inner bag body 20 needs to be loaded or unloaded, the entrance and exit 11 is opened, and when the inner bag body 20 does not need to be loaded or unloaded, the entrance and exit 11 is closed to keep the inner bag body 20 sealed.

[0068] In some embodiments, optionally, the second body 32 includes a connecting end 321 and a moving end 322 , the connecting end 321 is connected to the first body 31 , and the moving end 322 can rotate around the connecting end 321 to connect with or separate from the first body 31 .

[0069] By connecting the connecting end 321 to the first body 31 , a connection with a certain angle between the first body 31 and the second body 32 can be achieved, and the size of the angle can be changed as the moving end 322 rotates.

[0070] Specifically, when the moving end 322 is connected to the first body 31, the second body 32 is stacked parallel to the first body 31 as a whole, and the angle formed between the second body and the first body is 0 degrees. Then, the moving end 322 is controlled to move away from the first body, and the angle formed between the second body and the first body gradually increases. Optionally, the moving end 322 can be controlled to rotate more than 90 degrees, so that the angle formed between the second body and the first body is greater than 90 degrees, so as to ensure that the entrance and exit 11 is completely exposed.

[0071] Similarly, the angle between the first bodies can also be gradually reduced from greater than 90 degrees to 0 degrees, which will not be repeated here.

[0072] In some embodiments, optionally, the inner bag body 20 has a first top surface 21, a first bottom surface 22 and a first side surface 23 located therebetween, the feed piece 40 is connected to the first top surface 21, and the outer bag body 10 is fixedly connected to at least a portion of the first side surface 23.

[0073] The first top surface 21, the first bottom surface 22 and the first side surface 23 can all be flat surfaces, curved surfaces or surfaces of other shapes. The first side surface 23 can include one or more. When the first side surface 23 includes one, the overall shape of the inner bag body 20 is a hollow barrel shape. When the first side surface 23 includes multiple, the overall shape of the inner bag body 20 is a hollow polygonal column shape.

[0074] The at least partial fixed connection between the outer bag body 10 and the first side surface 23 can be achieved by adhering the inner surface of the outer bag body 10 to the first side surface 23, or by directly setting a matching fixed connection structure on the outer bag body 10 and the first side surface 23 of the inner bag body 20, or by setting a third matching structure to connect the two, thereby fixing the inner bag body 20 and the outer bag body 10 together to prevent deformation of the inner bag body 20 or the outer bag body 10.

[0075] It is worth noting that the inner bag body 20 forms a first top surface 21, a first bottom surface 22 and a first side surface 23, so the surface inner bag body 20 itself has a certain shape after molding. The inner bag body 20 can be made of aluminum foil, polyethylene, etc. to ensure that it can remain stable after molding.

[0076] The material transfer member 40 is connected to the first top surface 21 and can move relative to the entrance 11 of the outer bag body 10 so as to be accommodated above the first top surface 21 or form an intersecting loading and unloading mode with the first top surface 21 .

[0077] In some embodiments, optionally, the outer bag body 10 includes a second top surface 12, a second bottom surface 13 and a second side surface 14 located therebetween, the entrance 11 is provided on the second top surface 12, the second top surface 12 is opposite to the first top surface 21, the second bottom surface 13 is opposite to the first bottom surface 22, the first side surface 23 is adhered to the second side surface 14, and the ratio of the area of ​​the region where the first side surface 23 is adhered to the second side surface 14 to the total area of ​​the first side surface 23 is greater than or equal to 50%.

[0078] The shape of the outer bag body 10 is maintained by adhering the second side surface 14 of the inner bag body 20 to the first side surface 23. For example, when the outer bag body 10 is a woven bag structure, if there is no support, the outer bag body 10 cannot form a fixed shape, and a large space is easily generated between the two.

[0079] The ratio of the area of ​​the region where the first side surface 23 and the second side surface 14 are restricted to adhere to each other to the total area of ​​the first side surface 23 is greater than or equal to 50%, thereby ensuring that the first side surface 23 can adhere to the second side surface 14 with a larger area, thereby ensuring the connection strength between the inner bag body 20 and the outer bag body 10.

[0080] When loading, the external loading equipment extends into the feeding piece 40 from the side of the second top surface 12, and fills the material into the inner bag body 20. The inner bag body 20 falls onto the first bottom surface 22 and as the filling process progresses, the height of the material on the first bottom surface 22 gradually increases, and the material presses the first side surface 23 outward. At this time, the first side surface 23 and the second side surface 14 that are adhered to each other work together to provide packaging bearing effect for the material, and can also alleviate the phenomenon that the first side surface 23 is easily damaged due to excessive force, thereby improving the structural strength of the packaging structure 100.

[0081] In some embodiments, optionally, the packaging structure 100 further includes a support member 50, which is connected between the inner bag body 20 and the outer bag body 10; the support member 50 is respectively connected to the first top surface 21 and the second top surface 12, and / or the support member 50 is respectively connected to the first bottom surface 22 and the second bottom surface 13.

[0082] The support member 50 is used to support and fix the first top surface 21 and the second top surface 12, and / or support and fix the first bottom surface 22 and the second bottom surface 13, so as to enhance the strength and flatness of the inner bag body 20 and the outer bag body 10, alleviate the deformation of the inner bag body 20 during the loading and unloading process, thereby improving the structural strength of the packaging structure 100.

[0083] Specifically, the support member 50 can be a supporting steel ring, which is sleeved on the outer periphery of the first top surface 21 of the inner bag body 20 and connected to the edge of the outer edge of the first top surface 21, while being connected to the second top surface 12 of the outer bag body 10, so as to avoid wrinkles and material clamping in the inner bag body 20 during the material suction process, thereby effectively reducing the amount of material residue.

[0084] Furthermore, the support member 50 may be connected to the first top surface 21 and the second top surface 12 by adhesion or other methods.

[0085] It can be understood that since the material passing piece 40 can be accommodated in the outer bag body 10, a certain gap is reserved between the first top surface 21 and the second top surface 12 during the design, and the support piece 50 can be arranged in the gap and connected to the first top surface 21 and the second top surface 12, and the material passing piece 40 can also be accommodated in the gap between the first top surface 21 and the second top surface 12.

[0086] In some embodiments, optionally, the packaging structure 100 further includes a hanging piece 60 , which is connected to the outer bag body 10 and extends toward a side of the outer bag body 10 where the entrance 11 is provided.

[0087] The lifting part 60 is a structural component used to lift the entire packaging structure 100. One side of the lifting part is connected to the outer bag body 10, and the other end can form a lifting part. The external lifting equipment lifts the entire packaging structure 100 through the lifting part, thereby transporting the materials in the packaging structure 100 to the designated location.

[0088] The lifting part 60 extends to the side of the outer bag body 10 where the entrance and exit 11 is provided. At this time, after the external lifting equipment lifts the packaging structure 100 and reaches the designated position, it is lowered to ensure that the entrance and exit 11 is facing upward, which is convenient for direct loading or unloading.

[0089] Furthermore, the lifting part 60 is connected to the second top surface 12. After the external lifting equipment lifts the packaging structure 100 and reaches the designated position, it is lowered. At this time, the second bottom surface 13 directly contacts the ground or the operating table and other structures, and the second top surface 12 faces upward, that is, toward the user.

[0090] In some embodiments, optionally, the hanging piece 60 includes a plurality of ears 61, the outer bag body 10 includes a second top surface 12, a second bottom surface 13 and a second side surface 14 located therebetween, the entrance and exit 11 is provided on the second top surface 12, and the plurality of ears 61 are connected to the second side surface 14 at intervals and all extend toward one side of the second top surface 12.

[0091] Each lifting ear 61 is divided into two parts. The first part is connected to the second side surface 14 and extends toward one side of the second top surface 12 until it extends to the connecting edge position between the second top surface 12 and the second side surface 14. The second part continues to extend from the connecting edge position until it partially protrudes from the second top surface 12 to form a lifting portion. In this way, setting the lifting ear 61 on the second side surface 14 is equivalent to applying force to the outer edge of the packaging structure 100 during lifting, thereby ensuring the tensile strength and sealing and moisture-proof properties of the packaging structure 100.

[0092] In a specific embodiment, when the second side surfaces 14 include four, any two opposite second side surfaces 14 can be selected at will, and two lifting ears 61 are arranged on each second side surface 14 at intervals, and the lifting ears 61 on the opposite second side surfaces 14 are arranged opposite to each other, so that the packaging structure 100 is subjected to balanced force when being hoisted.

[0093] In one embodiment, the rigidity of the inner bag 20 is greater than the rigidity of the outer bag 10 .

[0094] Stiffness is the amount of external force required to produce a unit of deformation in an object. Stiffness is related to the object's material properties, geometry, boundary support, and the type of external force applied. The greater the material's elastic modulus and shear modulus, the greater its stiffness.

[0095] The rigidity of the inner bag body 20 is set to be relatively large to ensure the supporting strength of the inner bag body 20. As a component that directly carries the material, if the rigidity of the inner bag body 20 is weak, it is easy to be deformed or damaged during loading and unloading, thereby reducing the supporting strength of the packaging structure 100.

[0096] According to some embodiments of the present application, referring to Figures 1 to 3, the present application provides a packaging structure 100, including an inner bag body 20, an outer bag body 10 arranged outside the inner bag body 20, a material passing piece 40 connected to the inner bag body 20, a sealing piece 30 connected to the outer bag body 10, and a hanging piece 60 arranged on the outer bag body 10, the hanging piece 60 includes four ears 61, the inner bag body 20 includes a first top surface 21, a first bottom surface 22 and four first side surfaces 23, the outer bag body 10 includes a second top surface 12, a second bottom surface 13 and four second side surfaces 14, the first side surfaces 23 and the second side surfaces 14 are adhered to each other, and the material passing piece 40 is connected to the first top surface 21. When loading or unloading is required, the sealing member 30 opens the inlet 11, and the feeding member 40 extends out of the outer bag body 10 through the inlet 11 on the second top surface 12. A sharp object punctures the feeding member 40 to form an inlet, and an external loading or unloading device is inserted into the feeding port 24 to load or unload the materials. After loading or unloading is completed, the feeding member 40 is inserted back into the outer bag body 10 through the inlet 11, and the sealing member 30 closes the inlet 11 to maintain the sealing of the packaging structure 100.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A packaging structure, wherein: The packaging structure comprises: An outer bag body having an entrance and an exit; a sealing member connected to the outer bag body and configured to close or open the entrance; and An inner bag body, contained in the outer bag body, and used for containing materials; Wherein, the packaging structure further comprises a material transfer piece, the material transfer piece is connected to the inner bag body and can be accommodated in the outer bag body or extend out of the outer bag body from the inlet and outlet; The material transfer member is configured to generate a material transfer port communicating with the inner bag body when extending out of the outer bag body through the inlet and outlet.

2. The packaging structure according to claim 1, wherein: The material passing member is configured so that a local surface thereof is punctured to form the material passing opening.

3. The packaging structure according to claim 1 or 2, wherein: The material transfer member is configured to be deformed by force so as to be accommodated in the outer bag or extend out of the outer bag from the inlet and outlet.

4. The packaging structure according to any one of claims 1 to 3, wherein: The sealing member includes a first body and a second body; The first main body is disposed on the outer bag body and surrounds the outer periphery of the entrance; The second body can be connected to or separated from the first body to close or open the entrance.

5. The packaging structure according to claim 4, wherein: The second body comprises a connecting end and a moving end, and the connecting end is connected to the first body; The moving end can rotate around the connecting end to be connected to or separated from the first body.

6. The packaging structure according to any one of claims 1 to 5, wherein: The inner bag body has a first top surface, a first bottom surface and a first side surface located therebetween, and the material transfer member is connected to the first top surface; The outer bag body is fixedly connected to at least a portion of the first side surface.

7. The packaging structure according to claim 6, wherein: The outer bag body comprises a second top surface, a second bottom surface and a second side surface located therebetween, the inlet and outlet are arranged on the second top surface, the second top surface is opposite to the first top surface, and the second bottom surface is opposite to the first bottom surface; The first side surface is adhered to the second side surface, and a ratio of an area where the first side surface and the second side surface are adhered to each other to a total area of ​​the first side surface is greater than or equal to 50%.

8. The packaging structure according to claim 7, wherein: The packaging structure further includes a support member, wherein the support member is connected between the inner bag body and the outer bag body; The support member is connected to the first top surface and the second top surface respectively, and / or the support member is connected to the first bottom surface and the second bottom surface respectively.

9. The packaging structure according to any one of claims 1 to 8, wherein: The packaging structure further includes a hanging piece, which is connected to the outer bag body and extends toward a side of the outer bag body where the entrance and exit are provided.

10. The packaging structure according to claim 9, wherein: The hanging piece includes a plurality of hanging ears, the outer bag body includes a second top surface, a second bottom surface and a second side surface located therebetween, and the entrance and exit are arranged on the second top surface; The plurality of hanging ears are connected to the second side surface at intervals and extend toward one side of the second top surface.

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