CN216270529U

CN216270529U - Packaging structure

Info

Publication number: CN216270529U
Application number: CN202122731719.0U
Authority: CN
Inventors: 付天琳; 刘华; 安楠楠; 谢丽婷; 陈飞帆
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-12
Anticipated expiration: 2031-11-09

Abstract

The utility model provides a packaging structure, which relates to the field of logistics, and comprises: the keel frame is internally provided with an accommodating cavity; a cushioning bladder for filling with a cushioning fluid, the cushioning bladder being located at a position where the shape of the keel frame is abruptly changed. The packaged goods can be protected in case the packaging structure is subjected to vibrations and impacts.

Description

Packaging structure

Technical Field

The utility model relates to the field of logistics, in particular to a packaging structure.

Background

In order to reduce the possibility that the goods are damaged by collision during transportation or handling, the goods need to be packaged by a packaging structure. The associated packaging structure is wrapped around the surface of the goods to protect the goods, and the goods inside the associated packaging structure are susceptible to damage in the event of impact and vibration.

SUMMERY OF THE UTILITY MODEL

The utility model provides a packaging structure, which is used for solving the technical problem of protecting packaged goods under the condition that the packaging structure is subjected to vibration and impact.

An embodiment of the present invention provides a packaging structure, including: the keel frame is internally provided with an accommodating cavity; a cushioning bladder for filling with a cushioning fluid, the cushioning bladder being located at a position where the shape of the keel frame is abruptly changed. In some embodiments, the cushioning bladder is located at an edge and/or corner of the keel frame.

In some embodiments, the keel frame is enclosed to form a cubic structure, and the corner of the cubic structure is provided with the buffer bag.

In some embodiments, the cushion bladder is integrally formed with the keel frame.

In some embodiments, the keel frame comprises: putting the frame on; the lower frame is arranged at intervals with the upper frame; the buffer bag is arranged in the upper frame and/or the lower frame, or one end of the buffer bag extends into the upper frame and the other end of the buffer bag extends into the lower frame to connect the upper frame and the lower frame.

In some embodiments, the cushion bladder comprises: the sub-buffer bags are provided with a plurality of sub-buffer bags which are arranged at intervals; and the first flow guide channel is used for communicating the sub buffer bags.

In some embodiments, the directions of extension of at least some of the sub-cushion bladders are substantially parallel.

In some embodiments, the first flow guide channel is provided with a plurality of flow guide channels, and at least part of the second flow guide channels are arranged at intervals and extend in a substantially parallel direction.

In some embodiments, the packaging structure further comprises a second diversion channel for communicating the cushion bladder at different locations of the keel frame.

In some embodiments, the packaging structure further comprises: and the inflation valve is communicated with the buffer bag and is used for filling buffer gas into the buffer bag.

In some embodiments, the inflation valve is a one-way inflation valve.

In some embodiments, the keel frame has a thickness between 0.8 mm and 1.2 mm.

In some embodiments, the exterior surface of the keel frame is provided with stiffening ribs.

Embodiments of the present invention provide a packaging structure including a keel frame having a receiving cavity therein and a cushioning bladder for filling with a cushioning fluid and located at a position where a shape of the keel frame is abruptly changed. The position that produces the sudden change in the shape of fossil fragments frame sets up the buffering bag, so that packaging structure receives under the condition of impact load, through the deformation of the buffering fluid of filling in the buffering bag, the easy impact that receives that produces stress concentration region of buffering fossil fragments frame, promptly, through setting up the buffering bag to the easy regional of producing stress concentration of fossil fragments frame, the region that probably produces the stress maximum value under packaging structure receives the condition of impact load carries out key protection, thereby under packaging structure receives the condition of impact and vibration, reduce the possibility that the goods in the packaging structure damaged, and simultaneously, packaging structure's manufacturing cost has been reduced, the volume that packaging structure occupy has been reduced, be convenient for the transportation of the goods in the packaging structure.

Drawings

Fig. 1 is a schematic structural diagram of a packaging structure according to an embodiment of the present invention;

figure 2 is a schematic view of a first type of keel frame in a packaging configuration provided by an embodiment of the utility model;

figure 3 is a schematic view of a second type of keel frame in a packaging configuration provided by embodiments of the utility model;

FIG. 4 is a schematic diagram of a first type of cushion bladder in a packaging configuration provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating a second type of cushion bladder according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of another packaging structure provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic view of the assembly of the keel frame, the sub-cushion bladder and the second diversion channel in the packaging structure provided by the embodiment of the utility model;

figure 8 is a schematic view of the assembly of the keel frame, the cushioning bladder and the first fluid-directing channel in a packaging structure provided by an embodiment of the utility model;

FIG. 9 is a schematic view of the assembly of the cushion bladder and the inflation valve in the packaging structure provided by the embodiment of the present invention.

Description of the reference numerals

1. A packaging structure; 10. a keel frame; 10A, a first type of keel frame; 11A, a box body; 12A, reinforcing the framework; 10B, a second type of keel frame; 11B, a top surface shell; 12B, a bottom shell; 13B, connecting columns; 11. an accommodating chamber; 12. an edge; 13. edges and corners; 14. an upper frame, 15 and a lower frame; 16. reinforcing ribs; 20. a buffer bag; 20A, a first type of cushioning bladder; 21A, a first buffer cavity; 22A and a second buffer cavity; 23A, a communication hole; 20B, a second type of cushioning bladder; 21B, a gas accommodating cavity; 21. a sub-cushion capsule; 22. a first flow guide passage; 30. a second flow guide channel; 40. an inflation valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the utility model will not be described further.

In the following description, the term "first/second/so" is used merely to distinguish different objects and does not mean that there is a common or relationship between the objects. It should be understood that the description of the "upper", "lower", "outer" and "inner" directions as related to the orientation in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the corresponding schematic drawings, and may or may not be the left and right directions in the normal use state.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "coupled", where not otherwise specified, includes both direct and indirect connections.

In the specific embodiment, the packaging structure may be used for packaging any goods, for example, the packaging structure may be used for packaging an air conditioner outdoor unit, for example, the packaging structure may also be used for packaging a washing machine, and for convenience of description, the structure of the packaging structure is exemplified below by taking the packaging structure as an example for packaging a washing machine. The packaging structure is used for packaging goods and has no influence on the packaging structure except for the size of the packaging structure.

In some embodiments, as shown in fig. 1, the packaging structure 1 comprises: a keel frame 10 and a cushion bladder 20.

The keel frame 10 is internally provided with a containing cavity 11 for containing goods, and the shape and the size of the containing cavity 11 are matched with the contained goods, so that the keel frame 10 can be wrapped outside the goods, and the packaged goods are protected by the keel frame 10. The keel frame 10 is wrapped around the cargo, and the keel frame 10 may be a structure that can surround the outer surface of the cargo in at least one of the length dimension direction, the width dimension direction, and the height dimension direction of the cargo. It should be noted that the keel frame 10 may be any structure capable of enclosing cargo, and the structure of the keel frame 10 will be described below with reference to fig. 2 and 3.

As shown in fig. 2, the first type of keel frame 10A includes a box body 11A and a reinforcing frame 12A, the box body 11A can wrap the goods in the length dimension direction, the width dimension direction and the height dimension direction of the goods, the reinforcing frame 12A is provided on the outer surface of the box body 11A, and the reinforcing frame 12A extends along the length dimension of the box body 11A for reinforcing the structural strength of the box body 11A along the length dimension direction.

As shown in fig. 3, the second type of keel frame 10B comprises: top surface casing 11B, bottom surface casing 12B and spliced pole 13B, the top surface of top surface casing 11B parcel goods, the bottom surface of bottom surface casing 12B parcel goods, spliced pole 13B connects top surface casing 11B and bottom surface casing 12B.

The cushioning bladder 20 is filled with a cushioning fluid, which may be a liquid or a gas, and the cushioning bladder 20 is made of a flexible material, so that when the cushioning bladder 20 is subjected to an impact load, the cushioning bladder 20 deforms under the impact load, and forces the cushioning fluid in the cushioning bladder 20 to flow or deform, and the cushioning is realized through the flow or deformation of the cushioning fluid, so as to protect the cargo in the keel frame 10. The structure of the cushion bladder 20 may be different according to the type of the cushion fluid filled in the cushion bladder 20, and the specific structure of the cushion bladder 20 is described in the following embodiments, and therefore will not be described herein.

The cushion bag 20 is located at a position where the shape of the keel frame 10 changes abruptly, and in a case where the package structure 1 is subjected to an impact load, stress applied to the keel frame 10 by the impact load is concentrated at the position where the shape of the keel frame 10 changes abruptly, that is, the stress applied at the position where the shape of the keel frame 10 changes abruptly is increased sharply compared to a non-shape-changed region of the keel frame 10, and the concentrated stress applied at the position where the shape of the keel frame 10 changes abruptly is transmitted to the goods in the package structure 1, which may cause damage to the goods, wherein the impact load applied to the package structure 1 may be caused by dropping of the package structure 1 or may be caused by vibration applied to the package structure 1 during transportation. The position that produces the sudden change in the shape of fossil fragments frame 10 sets up buffering bag 20, can prolong the effect time of effort to the stress concentration position of fossil fragments frame 10 through the flow and the deformation of the buffer fluid that fill in buffering bag 20, will turn into the elastic force or the damping force in the longer time to the instantaneous impact force of the goods in fossil fragments frame 10 and fossil fragments frame 10 to reduce the impulse that the impact was applyed to the goods in packaging structure 1, and then reduced the possibility that the goods damaged. Where the shape of the keel frame 10 is at a location of abrupt change, it is understood that the intersection between different surfaces of the keel frame 10 forms an edge or a sharp point of a non-circular arc transition, illustratively, two non-parallel surfaces of the keel frame 10 intersect to form an edge of a non-circular arc transition, and illustratively, three non-parallel surfaces of the keel frame 10 intersect to form a sharp point of a non-circular arc transition. Compared with the structure that the cushioning bags are uniformly distributed on the surface of the keel frame 10, the cushioning bags 20 are arranged at the positions where the shape of the keel frame 10 changes suddenly, so that the positions of the keel frame 10 where stress concentration is easy to occur are mainly protected, the manufacturing cost of the packaging structure 1 is reduced, the volume of the packaging structure 1 is also reduced, and transportation of goods in the packaging structure 1 is facilitated.

Meanwhile, the keel frame 10 is made of a rigid material which is not easy to flexibly deform, goods in the packaging structure 1 can be protected through the rigidity of the keel frame 10, the shape of the keel frame 10 is determined, the position of the keel frame 10 with the shape changing suddenly can be determined according to the shape of the keel frame 10, and a buffer bag is arranged at the position of the keel frame with the shape changing suddenly.

In some embodiments, the cushion bladder 20 may be connected to the keel frame 10 in any manner, illustratively, the keel frame 10 has a cavity therein and the cushion bladder 20 is received in the cavity; illustratively, the cushion bladder 20 is closed by welding or the like to a local area of the support runner to form a chamber for receiving a cushioning fluid; illustratively, the cushion bladder 20 is integrally formed with the keel frame 10. The structure of the buffer bladder 20 may be any structure capable of being filled with a buffer fluid and achieving buffering through deformation or flow of the buffer fluid, and the structure of the buffer bladder 20 will be described below with reference to fig. 4 and 5, respectively. It should be noted that the structure of the cushion bag 20 may be other than the structure shown in fig. 4 and 5.

As shown in fig. 4, the first type of cushion bladder 20A includes a first cushion chamber 21A and a second cushion chamber 22A, and the first cushion chamber 21A and the second cushion chamber 22A are communicated with each other through a communication hole 23A, and the first cushion chamber 21A and the second cushion chamber 22A are filled with a viscous liquid, which may be, for example, silicone oil, and the total volume of the viscous liquid is smaller than the sum of the volume of the first cushion chamber 21A and the volume of the second cushion chamber 22A, and optionally, the total volume of the viscous liquid is the same as the volume of the first cushion chamber 21A, and the volume of the first cushion chamber 21A is larger than the volume of the second cushion chamber 22A. Receive impact load at packaging structure, and this impact load directly or indirectly acts on under the condition of first cushion chamber 21A, first cushion chamber 21A is forced to produce deformation to make the stickness liquid in the first cushion chamber 21A flow into second cushion chamber 22A by intercommunicating pore 23A, the viscous damping force through stickness liquid and the frictional force between the pore wall of stickness liquid and intercommunicating pore 23A realize the buffering and the absorption to the impact. As shown in fig. 5, the second type of cushion capsule 20B has a gas accommodating chamber 21B therein, and the gas accommodating chamber 21B is filled with a gas, which may be, for example, air, nitrogen or argon. In the case where the packaging structure is subjected to an impact load which acts directly or indirectly on the second type of cushion bladder 20B, the gas-accommodating chamber 21B is forced to deform and the gas in the gas-accommodating chamber 21B is forced to be compressed to deform, and the impact is cushioned by the compression deformation of the gas in the gas-accommodating chamber 21B.

In some embodiments, as shown in fig. 6, the cushion bladder 20 is located at an edge 12 and/or a corner 13 of the keel frame 10, specifically, two non-parallel cross sections of the keel frame 10 form the edge 12, three non-parallel cross sections of the keel frame 10 form the corner 13, both the edge 12 and the corner are the position where the shape of the keel frame 10 changes suddenly, and the cushion bladder 20 is located at the edge 12 and/or the corner 13 of the keel frame 10, so that the impact can be cushioned at the position where the keel frame 10 is prone to stress concentration. Depending on the specific construction of the keel frame 10, the number of edges 12 and corners 13 of the keel frame 10 may vary, and illustratively, the keel frame 10 is enclosed to form a cylinder having two edges and no corners; illustratively, the keel frame 10 encloses a cube having 4 edges and 8 corners.

In some embodiments, as shown in fig. 6, the keel frame 10 is enclosed to form a cubic structure, and the keel frame 10 enclosed to form the cubic structure is used for packaging an electrical appliance with a substantially cubic shape, such as a washing machine or an air conditioner outdoor unit. Each corner 13 of the keel frame 10 enclosing the cubic structure is provided with a buffer bag 20, and the impact of the corner 13 of the keel frame 10 is buffered by the buffer bags 20, so that the electrical equipment enclosed by the keel frame 10 is protected.

In some embodiments, the cushion bladder 20 is integrally formed with the keel frame 10, and it is understood that, in the process of manufacturing the keel frame 10, a cavity for accommodating a cushion fluid is reserved at a position where the shape of the keel frame 10 changes abruptly, and the cavity is filled with the cushion fluid after the manufacturing is completed, so that the cushion bladder 20 is formed at the corresponding position, the manufacturing process of the packaging structure 1 is simplified, the structural integrity of the packaging structure 1 is improved, and the structural strength of the packaging structure 1 is improved.

In some embodiments, as shown in fig. 1, the keel frame 10 comprises: upper frame 14 and lower frame 15 the upper frame 14 and lower frame 15 are spaced apart and are used for wrapping the two opposite sides of the goods respectively. Alternatively, the cushion bladder 20 is provided in the upper frame 14 and/or the lower frame 14, that is, no connecting structure is provided between the upper frame 14 and the lower frame 15, and the packaged goods are clamped between the upper frame 14 and the lower frame 15, and at the same time, the cushion bladder 20 is located in a position where the shape of the upper frame 14 and/or the lower frame 15 changes abruptly, for example, the cushion bladder 20 is located in a corner of the upper frame 14 and the lower frame 15, so as to protect the position of the upper frame 14 and the lower frame 15 where stress concentration is likely to occur. Optionally, as shown in fig. 1, one end of the buffer bag 20 extends into the upper frame 14 and the other end of the buffer bag 20 extends into the lower frame 15 to connect the upper frame 14 and the lower frame 15, that is, the buffer bag 20 extends into the position where the shape of the upper frame 14 and the shape of the lower frame 15 are changed, and the upper frame 14 and the lower frame 15 are connected through the buffer bag 20, so that the packaged goods are wrapped in the packaging structure 1 more reliably, and meanwhile, the buffer bag 20 can also protect the position of the upper frame 14 and the lower frame 15 where stress concentration is easily generated, thereby further improving the buffering capacity of the packaging structure 1.

In some embodiments, as shown in fig. 7, the cushion bladder 20 includes: a sub-cushion bladder 21 and a first diversion passage 22. The sub-buffer bags 21 are provided with a plurality of sub-buffer bags 21 which are arranged at intervals, and the plurality of sub-buffer bags 21 which are arranged at intervals are communicated through the first flow guide channel. Specifically, the sub-cushion capsules 21 are spaced and distributed on different surfaces of the keel frame 10, where the shape of the keel frame 10 changes abruptly, for example, the corners 13 of the keel frame 10 are formed by intersecting three non-parallel surfaces of the keel frame 10, and the sub-cushion capsules 21 of the cushion capsules 20 are spaced and distributed on the three non-parallel surfaces, so that the sub-cushion capsules 21 can cushion impacts acting on the corners 13 in different directions. Meanwhile, the first diversion channels 22 are communicated, so that under the condition that a part of the sub-buffering bags 21 are impacted, the impacted buffering bags 31 are forced to deform, the buffering fluid in the sub-buffering bags 21 which are forced to deform flows into the rest of the sub-buffering bags 21 through the first diversion channels 22, and the kinetic energy of the motion of the sub-buffering bags 21 generated under the excitation of the impact is converted into the internal energy of the buffering fluid through the friction between the buffering fluid and the inner wall surfaces of the first diversion channels 22, so that the impact is absorbed. The pipe diameter of the first diversion channel 22 is smaller than a preset size, for example, the pipe diameter of the first diversion channel 22 is smaller than 10 mm, so that the buffer fluid in the sub-buffer bag 21 which is impacted flows in the first diversion channel 22 at a speed lower than a preset threshold, and the buffer fluid in the sub-buffer bag 21 flows out of the buffer bag at a speed lower than the preset threshold, so that the sub-buffer bag 21 buffers the impact in a longer time at one end, and the buffer capacity of the sub-buffer bag 21 is improved.

It should be noted that, after the cushion bladder 20 is filled with the cushion fluid, the cushion bladder 20 has a certain rigidity, and the more the cushion fluid is filled in the cushion bladder 20, the more the rigidity of the cushion bladder 20 in a state of not receiving an impact is, the stronger the cushion capacity of the cushion bladder 20 is. If the integral-structure cushion bladder 20 is arranged at the corner 13 of the keel frame 10, the cushion bladder 20 needs to be bent to span the corner 13 and cover three non-parallel surfaces intersected to form the corner 13, and the integral-structure cushion bladder 20 needs to limit the rigidity of the cushion bladder 20 so as to reduce the possibility that the cushion bladder 20 is difficult to bend and span the corner 13 due to the excessive rigidity of the integral-structure cushion bladder 20, so that the filling amount of the cushion fluid in the integral-structure cushion bladder 20 is limited, and the cushion capacity of the integral-structure cushion bladder 20 is limited; the cushion bags 20 are arranged into the sub cushion bags 21 arranged at intervals, the sub cushion bags 21 are respectively arranged on three different surfaces intersected to form the edge 13, the first diversion channel 22 spans the edge 13 and is communicated with the sub cushion bags 21 arranged at intervals, and therefore the rigidity of each sub cushion bag 21 is not limited, namely, the sub cushion bags 21 can cushion the impact of the edge 13 in different directions under the condition that the buffering capacity of each sub cushion bag 21 is not limited.

In some embodiments, as shown in fig. 7, the extending directions of at least some of the sub-cushioning cells 21 are substantially parallel, it is understood that the maximum value of the included angle between the length directions of a plurality of sub-cushioning cells 21 of at least some of the cushioning cells 20 does not exceed a preset angle threshold, and the extending directions of the sub-cushioning cells 21 located in the same plane of the keel frame 10 are substantially parallel. The extending directions of at least part of the sub-cushion capsules 21 are set to be basically parallel, so that the processing of the cushion capsule 20 is simpler, and the manufacturing cost of the cushion capsule 20 is reduced. Optionally, the extension direction of the sub-cushion bladder 21 is consistent with the direction in which the maximum stress value is most likely to be formed when the keel frame 10 is subjected to an impact, or the direction in which the keel frame 10 is most likely to be subjected to an impact is consistent, so as to further improve the impact-absorbing capability of the sub-cushion bladder 21. It should be noted that the sectional shape of the sub-cushion bladder 21 may be any figure in a cross section perpendicular to the extending direction of the sub-cushion bladder 21, and for example, the sectional shape of the sub-cushion bladder 21 may be any one of a semicircular shape, a triangular shape, a rectangular shape, a trapezoidal shape, and an oval shape.

In some embodiments, as shown in fig. 7, the first flow guide channel 22 has a plurality of first flow guide channels 22, the plurality of first flow guide channels 22 are arranged at intervals, and each sub-cushion bladder 21 is communicated through the plurality of first flow guide channels 22, so as to increase the contact area between the cushion fluid and the wall surface of the first flow guide channel 22, increase the speed of converting the kinetic energy of the impact into the internal energy, and thus increase the impact absorption capacity of each sub-cushion bladder 21. Meanwhile, at least some of the first guide passages 22 extend substantially in parallel to reduce the manufacturing cost of the first guide passages 22, it is understood that the maximum value of the included angle between the extending directions of the respective first guide passages 22 does not exceed a preset angle threshold, and the extending directions of the first guide passages 22 for communicating with the sub-cushion pockets 21 located in the keel frame 10 are, for example, substantially in parallel.

In some embodiments, as shown in fig. 8, the packaging structure further includes a second flow guide passage 30, the second flow guide passage 30 is used for communicating the cushion bladder 20 at different positions of the keel frame 10, it can be understood that the keel frame 10 has a plurality of positions with different shapes and abrupt changes, and the buffer bladders 20 are disposed at the positions with the shapes and the abrupt changes, the first fluid guide 30 communicates with the buffer bladders 20 at the plurality of positions, so that the buffer fluid in the buffer bladder 20 can flow between different buffer bladders 20 along the second guide passage 30, the kinetic energy of the vibration of the keel frame 10 under the excitation of the impact load is converted into the internal energy of the buffer fluid by the friction force between the buffer fluid and the inner wall of the second diversion channel 30 in the flowing process, so that the buffer capacity of the buffer bag 20 is further improved, and the possibility of damage of the goods in the packaging structure under the action of the impact or the vibration is further reduced. Meanwhile, after the external force applied to the cushion bladder 20 by the vibration or the impact is cancelled, according to the principle of the communicating vessel, the cushion fluid flowing out of the impacted cushion bladder 20 can automatically flow back into the cushion bladder under the action of the pressure difference, so that the cushion bladder 20 can still have the cushion capacity when being subjected to the next impact load. It should be noted that the pipe diameter of the second flow guide channel 30 is smaller than a preset size, for example, the pipe diameter of the second flow guide channel 30 is smaller than 10 mm, so that the buffer fluid in the buffer bag 20 subjected to the impact flows in the second flow guide channel 30 at a speed lower than a preset threshold, so that the buffer fluid in the buffer bag 20 flows out of the buffer bag at a speed lower than the preset threshold, and the buffer bag 20 buffers the impact load for a longer time at one end, thereby improving the buffering capacity of the buffer bag 20.

In order to more clearly illustrate the flowing of the buffer fluid in the buffer bag 20 when the buffer bag 20 is impacted or vibrated, the flowing of the buffer fluid in the buffer bag 20 will be exemplarily illustrated by taking the shape of the surrounding of the keel frame 10 as a cylinder and the edges of the two buffer bags 20 respectively arranged on the top and bottom surfaces of the cylinder as an example, with reference to fig. 8. As shown in fig. 8, in the case where the cushion bladder 20 located at the top of the keel frame 10 is subjected to an impact load, a part of the cushion fluid in the cushion bladder 20 located at the top flows into the cushion bladder 20 located at the bottom along the first flow passage 30 (the flow direction of the cushion fluid is shown by solid arrows in fig. 4), thereby cushioning the impact received at the top of the keel frame 10; after the top of the keel frame 10 is removed from the impact, the buffer fluid flows back from the bottom buffer bladder 20 to the top buffer bladder 20 due to the pressure difference between the top buffer bladder 20 and the bottom buffer bladder 20 (the flow direction of the buffer fluid is shown by the dashed arrow in fig. 4), until the pressure between the bottom buffer bladder 20 and the top buffer bladder 20 reaches the equilibrium.

In some embodiments, as shown in fig. 9, the packaging structure 1 further comprises an inflation valve 40, and the inflation valve 40 is in communication with the cushion bladder 20 for inflating the cushion bladder with a cushion gas. Filling gas in the buffering bag 20, can utilizing the characteristic that gas can be compressed, realize the buffering to the impact through comparatively simple buffering bag 20's structure, reduced buffering bag 20's manufacturing cost, simultaneously, compare in filling the stickness liquid in buffering bag 20, fill gas in buffering bag 20, can also reduce the filler in buffering bag 20 and attach to the possibility on goods surface under the ruptured condition of buffering bag 20. Optionally, the inflation valve 40 is a one-way inflation valve, that is, the inflation valve 40 allows the buffer gas to enter the buffer bag 20 and blocks the buffer gas in the buffer bag 20 from exiting the buffer bag 20, and when the buffer bag 20 is inflated by the inflation valve 40 and the pressure of the buffer gas in the buffer bag 20 reaches the target pressure, the inflation valve 40 can seal the buffer bag 20, so as to facilitate the inflation operation of the buffer bag 20.

In some embodiments, as shown in fig. 1, the thickness of the keel frame 1 is between 0.8 mm and 1.2 mm, that is, the keel frame 10 is a thin-wall structure, and the wall thickness of the thin-wall structure is between 0.8 mm and 1.2 mm, so that the keel frame 10 can be elastically deformed when being impacted, and thus the impact is buffered by the elastic deformation of the keel frame 10 and the deformation of the buffer bag 20, and the possibility that goods in the keel frame 10 are damaged by the impact is further reduced. Alternatively, the keel frame 10 is made of plastic, and illustratively, the keel frame 10 may be made of polypropylene, polyethylene, or polyethylene terephthalate. Optionally, as shown in fig. 1, the outer surface of the keel frame 10 is provided with a reinforcing rib 16 to increase the local rigidity of the keel frame 10, so that the keel frame 10 can be elastically deformed, and at the same time, the possibility that the keel frame 10 is plastically deformed or broken under the impact is reduced, thereby protecting the goods in the keel frame 10 more reliably.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A packaging structure, characterized in that it comprises:

the keel frame (10) is internally provided with a containing cavity (11);

a cushioning bladder (20) for filling with a cushioning fluid, the cushioning bladder (20) being located at a position where the shape of the keel frame (10) is abrupt.

2. The packaging structure according to claim 1, characterized in that the cushioning bladder (20) is located at an edge (12) and/or a corner (13) of the keel frame (10).

3. The packaging structure according to claim 2, characterized in that the keel frame (10) is enclosed to form a cubic structure, the corners (13) of which are provided with said cushioning pockets (20).

4. The packaging structure according to claim 1, characterized in that the cushion bladder (20) is integrally formed with the keel frame (10).

5. The packaging structure of claim 1, wherein the keel frame (10) comprises:

an upper frame (14);

a lower frame (15) spaced from the upper frame (14);

wherein the buffer bag (20) is arranged in the upper frame (14) and/or the lower frame (15),

or,

one end of the buffer bag (20) extends into the upper frame (14) and the other end of the buffer bag extends into the lower frame (15) so as to connect the upper frame (14) and the lower frame (15).

6. The packaging structure according to claim 1, characterized in that said cushioning bladder (20) comprises:

a plurality of sub-cushion capsules (21), wherein the sub-cushion capsules (21) are arranged at intervals;

and the first flow guide channel (22) is used for communicating the sub buffer bags (21).

7. The packaging structure according to claim 6, wherein the directions of extension of at least some of the sub-cushion capsules (21) are substantially parallel.

8. The packaging structure according to claim 6 or 7, wherein the first flow guide channel (22) has a plurality of flow guide channels, and at least some of the first flow guide channels (22) are arranged at intervals and extend in substantially parallel directions.

9. The packaging structure according to claim 1 or 2, characterized in that it further comprises a second flow-guide channel (30) for communicating the cushioning cells (20) in different positions of the keel frame (10).

10. The packaging structure of claim 1, further comprising:

and the inflation valve (40) is communicated with the buffer bag (20) and is used for inflating buffer gas into the buffer bag (20).

11. The packaging structure according to claim 10, characterized in that said inflation valve (40) is a one-way inflation valve.

12. The packaging structure according to claim 1, characterized in that the thickness of the keel frame (10) is between 0.8 and 1.2 mm.

13. The packaging structure according to claim 12, characterized in that the outer surface of the keel frame (10) is provided with stiffening ribs (16).