Buffer assembly and packaging box

By providing a buffer assembly composed of a partition and an elastic support in the packaging box, the problem of high material costs and poor buffering effect in the prior art is solved, and the effect of improving buffering effect and assembly convenience while reducing costs is achieved.

CN223200690UActive Publication Date: 2025-08-08LUXSHARE ELECTRONICS TECH (KUNSHAN) LTD
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Patent Information

Application Number
CN202422079010.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-08-08
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The rigid cushioning material of existing packaging boxes lining increases material cost and has poor cushioning effect, making it difficult to improve cushioning effect in a simple way.

Method used

A buffer assembly consisting of a first partition, an elastic support member and a second partition is provided in the packaging box. The elastic support member includes a first connection part, an elastic telescopic part and a second connection part. The elastic telescopic part extends and retracts in the first direction to provide elastic support force, thereby reducing material costs while improving the buffering effect.

Benefits of technology

On the basis of ensuring the buffering effect, the material cost is reduced, and it is easy to assemble and fold and mold, which improves the buffering effect and material utilization of the buffering assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging and transportation, in particular to a buffering assembly and a packaging box, the buffering assembly is arranged in a box body, and the buffering assembly comprises a first partition plate, an elastic supporting piece and a second partition plate which are sequentially arranged in the first direction; one end, away from the elastic supporting piece, of the first partition abuts against an object; one end, away from the elastic supporting piece, of the second partition plate abuts against the inner wall of the box body; the elastic supporting piece comprises a first connecting part, an elastic telescopic part and a second connecting part which are sequentially arranged in the first direction, the first connecting part is detachably connected with the first partition plate, the second connecting part is detachably connected with the second partition plate, the elastic telescopic part can stretch out and draw back in the first direction, and elastic supporting force is achieved in the first direction; the buffering assembly can guarantee the buffering effect, and meanwhile the material cost is reduced.
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Description

Technical Field

[0001] The present application relates to the technical field of packaging and transportation, and in particular to a buffer assembly and a packaging box. Background Art

[0002] With the rapid development of the economy, shipping demands across various industries are expanding, and the demand for carton packaging is increasing dramatically. To protect products from damage and deformation caused by external forces during transportation, linings are generally installed inside the packaging box to protect the objects. Currently, most traditional linings are rigid cushioning. To achieve a good cushioning effect, the thickness or number of layers of corrugated paper are generally increased, which increases material costs. Utility Model Content

[0003] The purpose of the present application is to provide a buffer assembly and a packaging box, wherein the buffer assembly can ensure a buffering effect while reducing material costs.

[0004] To this end, on the first aspect, an embodiment of the present application provides a buffer assembly, which is arranged in a box body, and the buffer assembly includes a first partition, an elastic support member, and a second partition arranged in sequence along a first direction; one end of the first partition away from the elastic support member abuts against the object; one end of the second partition away from the elastic support member abuts against the inner wall of the box body; the elastic support member includes a first connecting part, an elastic telescopic part, and a second connecting part arranged in sequence along the first direction, the first connecting part is detachably connected to the first partition, the second connecting part is detachably connected to the second partition, and the elastic telescopic part can be telescoped along the first direction to exert an elastic supporting force along the first direction.

[0005] In a possible implementation, the elastically retractable portion includes a first side connected to the first connection portion and a second side connected to the first side, an end of the second side away from the first side is connected to the second connection portion, and the first side and the second side are arranged at an angle.

[0006] In a possible implementation, the elastic support member has at least two elastically retractable portions, and the at least two elastically retractable portions are spaced apart along the second direction;

[0007] The second direction is perpendicular to the first direction.

[0008] In a possible implementation, the elastic support member has two elastic telescopic parts, which are arranged opposite to each other along the second direction, and one end of the two elastic telescopic parts is respectively connected to the two ends of the first connecting part, and the other end is respectively connected to the two ends of the second connecting part.

[0009] In one possible implementation, a first plug-in portion is provided on the first partition; the first connection portion includes a first support plate and a second plug-in portion provided on the first support plate, the first support plate abuts the first partition, and the second plug-in portion is plugged into and fitted with the first plug-in portion.

[0010] In a possible implementation, the first partition has a first hollow cavity, and the first plug-in portion is provided on a side of the first partition facing the elastic support member.

[0011] In one possible implementation, a third plug-in portion is provided on the second partition; the second connection portion includes a second support plate and a fourth plug-in portion provided on the second support plate, the second support plate abuts the second partition, and the fourth plug-in portion is plugged into and matched with the third plug-in portion.

[0012] In a possible implementation, the second partition has a second hollow cavity, and the third plug-in portion is provided on a side of the second partition facing the elastic support member.

[0013] In a possible implementation, the second partition has a supporting portion disposed in the second hollow cavity, and the supporting portion supports the second hollow cavity along the first direction.

[0014] In a possible implementation, a plurality of elastic support members are spaced apart between the first partition plate and the second partition plate.

[0015] In a second aspect, an embodiment of the present application provides a packaging box, comprising: a box body; and the above-mentioned buffer assembly, wherein the buffer assembly is arranged in the box body.

[0016] In a possible implementation, two buffer assemblies are provided, and the two buffer assemblies respectively abut against two opposite inner walls of the box; or four buffer assemblies are provided, and the four buffer assemblies respectively abut against the inner walls of the box.

[0017] According to the buffer assembly and packaging box provided in the embodiments of the present application, after the buffer assembly is placed in the box, the first partition abuts against the object, the second partition abuts against the inner wall of the box, and the elastic support member stretches and contracts along the first direction and provides elastic support force, thereby increasing the buffering effect on the object in the first direction. Compared with simply increasing the material thickness or the number of layers, the material cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 A schematic diagram of an exploded structure of a buffer assembly provided in an embodiment of the present application is shown;

[0022] Figure 2 Show Figure 1 A schematic diagram of the three-dimensional structure of the buffer assembly shown;

[0023] Figure 3 Show Figure 2 A schematic structural diagram of the buffer assembly from another angle;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of an elastic support member provided in an embodiment of the present application is shown;

[0025] Figure 5 Show Figure 4 A schematic diagram of the three-dimensional structure of the elastic support member shown at another angle;

[0026] Figure 6 A schematic diagram of the exploded structure of a packaging box provided in an embodiment of the present application is shown;

[0027] Figure 7 A schematic structural diagram of an object and a buffer assembly provided in an embodiment of the present application is shown.

[0028] Description of reference numerals:

[0029] X, first direction; Y, second direction; a, object;

[0030] 1. First partition; 11. First plug-in portion; 12. First hollow cavity;

[0031] 2. Elastic support member; 21. First connecting portion; 211. First supporting plate; 212. Second plug-in portion; 22. Second connecting portion; 221. Second supporting plate; 222. Fourth plug-in portion; 23. Elastic expansion portion; 231. First side; 232. Second side;

[0032] 3. Second partition; 31. Third plug-in portion; 32. Second hollow cavity; 33. Support portion;

[0033] 4. Box body; 5. Bottom plate; 6. Cover plate. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the embodiments of the present application. In addition, the embodiments of the present application may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0037] In order to solve the problems in the prior art, the present application provides a buffer assembly and a packaging box, which can ensure the buffering effect while reducing material costs.

[0038] like Figure 1-5 As shown, an embodiment of the present application provides a buffer assembly, which is arranged in a box body 4. The buffer assembly includes a first partition 1, an elastic support member 2, and a second partition 3 arranged in sequence along a first direction X. Specifically, the first partition 1, the second partition 3, and the elastic support member 2 can be made of corrugated paper.

[0039] One end of the first partition 1 away from the elastic support member 2 abuts against the object a.

[0040] One end of the second partition plate 3 away from the elastic support member 2 abuts against the inner wall of the box body 4 .

[0041] The elastic support member 2 includes a first connecting part 21, a second connecting part 22 and an elastic telescopic part 23 arranged between the first connecting part 21 and the second connecting part 22. The first connecting part 21 is detachably connected to the first partition 1, and the second connecting part 22 is detachably connected to the second partition 3. The elastic telescopic part 23 can be extended and retracted along the first direction X and is used to provide elastic supporting force along the first direction X.

[0042] In this application, after the buffer assembly is placed in the box body 4, the first partition 1 abuts against the object a, the second partition 3 abuts against the inner wall of the box body 4, and the elastic support member 2 stretches and contracts along the first direction X and provides elastic supporting force, thereby increasing the buffering effect on the object a in the first direction X. Compared with simply increasing the material thickness or the number of layers, the material cost can be reduced.

[0043] In the related art, existing boxes 4 typically protect the object a within the box 4 by providing an internal lining. Existing linings use corrugated paper. While corrugated paper does have some cushioning properties, it is rigid and therefore less effective. To achieve a good cushioning effect, it is often necessary to increase the thickness of the corrugated paper or increase the number of layers. For example, using AB or BC fluted material to increase the cushioning material not only increases the cost of the raw materials, but also makes it difficult for workers to fold and shape the lining during assembly due to the increased thickness.

[0044] In the embodiment of the present application, an elastic support member 2 is provided between the first partition 1 and the second partition 3, and the elastic support member 2 itself is stretched and contracted along the first direction X to increase the elastic supporting force along the first direction X, thereby improving the cushioning effect. Because the cushioning effect can be guaranteed, the first partition 1, the second partition 3 and the elastic support member 2 can all be made of B-flute corrugated paper, thereby reducing the cost of raw materials. Moreover, compared with AB flute and BC flute materials, the thickness is reduced, which is convenient for employees to fold and form during assembly.

[0045] In some embodiments, the elastic telescopic portion 23 includes a first edge 231 connected to the first connecting portion 21 and a second edge 232 connected to the first edge 231. The end of the second edge 232 away from the first edge 231 is connected to the second connecting portion 22, and the first edge 231 and the second edge 232 are arranged at an angle.

[0046] In the present application, the first side 231 and the second side 232 are arranged at an angle. When the elastically expandable portion 23 is compressed along the first direction X, the angle between the first side 231 and the second side 232 decreases. When the elastically expandable portion 23 is extended along the first direction X, the angle between the first side 231 and the second side 232 increases. This effectively increases the cushioning capacity and thus improves the cushioning effect. Compared with the prior art that relies on increasing the lining thickness and the number of layers, it can effectively reduce the cost of raw materials.

[0047] In some embodiments, the elastic support member 2 has at least two elastically retractable portions 23 , and the at least two elastically retractable portions 23 are spaced apart along the second direction Y; wherein the second direction Y is perpendicular to the first direction X.

[0048] In the present application, the number of elastic telescopic parts 23 can be set to multiple, one end of the multiple elastic telescopic parts 23 is connected to the first connecting part 21, and the other end is connected to the second connecting part 22. The multiple elastic telescopic parts 23 are arranged at intervals along the second direction Y, which can further increase the elastic support effect on the object a, and the elastic telescopic parts 23 arranged at intervals will not affect each other during expansion and contraction, and can also ensure the uniformity of the elastic support force provided by the elastic support member 2 in the first direction X.

[0049] In a specific embodiment, the elastic support member 2 has two elastic telescopic parts 23, which are arranged opposite to each other along the second direction Y. One end of the two elastic telescopic parts 23 is respectively connected to the two ends of the first connection part 21, and the other end is respectively connected to the two ends of the second connection part 22.

[0050] In this application, one end of the two elastic telescopic parts 23 is connected to the two ends of the first connecting part 21, and the other end of the two elastic telescopic parts 23 is connected to the two ends of the second connecting part 22. By setting two elastic telescopic parts 23, the elastic support member 2 is facilitated to be folded and formed.

[0051] Specifically, the two elastic telescopic parts 23 can be arranged relative to each other, that is, the angles of the two elastic telescopic parts 23 are arranged relative to each other or back to back, which can ensure the uniformity of the supporting force provided by the elastic support member 2; the angles of the two elastic telescopic parts 23 can also be in the same direction.

[0052] In some embodiments, a first plug-in portion 11 is provided on the first partition 1; the first connecting portion 21 includes a first support plate 211 and a second plug-in portion 212 provided on the first support plate 211, the first support plate 211 abuts against the first partition 1, and the second plug-in portion 212 is plugged into and fitted with the first plug-in portion 11.

[0053] In the present application, the first plug-in portion 11 is a slot, and the second plug-in portion 212 is a buckle. By snapping the buckle into the slot, the first plug-in portion 11 and the second plug-in portion 212 are plugged together, which facilitates the assembly and disassembly of the first partition 1 and the elastic support member 2. Specifically, the first partition 1 and the elastic support member 2 are plugged together through at least two first plug-in portions 11 and second plug-in portions 212. On the basis of the connection between the first partition 1 and the elastic support member 2, it can also play a positioning effect, ensuring the reliability of the connection between the first partition 1 and the elastic support member 2. By the first support plate 211 abutting against the first partition 1, the contact area between the first connecting portion 21 and the first partition 1 is increased, and the force between the two can be evenly distributed, further improving the buffering effect.

[0054] In some embodiments, the first partition 1 has a first hollow cavity 12 , and the first plug-in portion 11 is disposed on a side of the first partition 1 facing the elastic support member 2 .

[0055] In the present application, the first partition 1 is folded to form a first hollow cavity 12 internally. The first hollow cavity 12 can further improve the buffering effect of the buffer assembly. Moreover, by providing the first hollow cavity 12, the second plug-in portion 212 can extend into the first hollow cavity 12 when plugged into the first plug-in portion 11, thereby completing the effective clamping connection between the first partition 1 and the elastic support member 2. Specifically, the first plug-in portion 11 is a slot, and the second plug-in portion 212 is a buckle. The length of the buckle away from one end of the first support plate 211 is greater than the length of the slot. When the buckle passes through the slot and enters the first hollow cavity 12, it is clamped and limited, and cooperates with the first support plate 211 to limit the first partition 1 from both ends, ensuring that the first partition 1 can effectively fit the first support plate 211.

[0056] In some embodiments, a third plug-in portion 31 is provided on the second partition 3; the second connection portion 22 includes a second support plate 221 and a fourth plug-in portion 222 provided on the second support plate 221, the second support plate 221 abuts the second partition 3, and the fourth plug-in portion 222 is plugged into and matched with the third plug-in portion 31.

[0057] In the present application, the third plug-in portion 31 is a slot, and the fourth plug-in portion 222 is a buckle. By snapping the buckle into the slot, the third plug-in portion 31 and the fourth plug-in portion 222 are plugged together, which facilitates the assembly and disassembly of the second partition 3 and the elastic support member 2. Specifically, the second partition 3 and the elastic support member 2 are plugged together through at least two third plug-in portions 31 and the fourth plug-in portion 222. On the basis of the connection between the second partition 3 and the elastic support member 2, it can also play a positioning effect, ensuring the reliability of the connection between the second partition 3 and the elastic support member 2. By the second support plate 221 abutting against the second partition 3, the contact area between the second connecting portion 22 and the second partition 3 is increased, and the force between the two can be evenly distributed, further improving the buffering effect.

[0058] Furthermore, the second partition plate 3 has a second hollow cavity 32 , and the third plug-in portion 31 is provided on a side of the second partition plate 3 facing the elastic support member 2 .

[0059] In the present application, the second partition 3 is folded to form a second hollow cavity 32 internally. The second hollow cavity 32 can further improve the buffering effect of the buffer assembly. Moreover, by providing the second hollow cavity 32, the third plug-in portion 31 can extend into the second hollow cavity 32 when plugged into the fourth plug-in portion 222, thereby completing the effective clamping connection between the second partition 3 and the elastic support member 2. Specifically, the third plug-in portion 31 is a slot, and the fourth plug-in portion 222 is a buckle. The length of the buckle away from one end of the second support plate 221 is greater than the length of the slot. When the buckle passes through the slot and enters the second hollow cavity 32, it is clamped and limited, and cooperates with the second support plate 221 to limit the second partition 3 from both ends, ensuring that the second partition 3 can be effectively fitted with the second support plate 221.

[0060] Furthermore, the second partition plate 3 has a supporting portion 33 disposed in the second hollow cavity 32 , and the supporting portion 33 is used to support the second hollow cavity 32 along the first direction X.

[0061] In the present application, by providing a support portion 33 in the second hollow cavity 32 of the second partition plate 3 , the second hollow cavity 32 can be supported, thereby further improving the stability of the structure of the second partition plate 3 .

[0062] The first partition 1, the second partition 3, and the elastic support member 2 are all formed by folding corrugated paper. Pressed lines are stamped on the punched raw material, and the raw material is folded along the pressed lines to obtain the desired shapes of the first partition 1, the second partition 3, and the elastic support member 2. The first partition 1 and the second partition 3 can have the same structure or different structures.

[0063] In some embodiments, a plurality of elastic support members 2 are disposed between the first partition plate 1 and the second partition plate 3 , and the plurality of elastic support members 2 are spaced and evenly disposed between the first partition plate 1 and the second partition plate 3 .

[0064] In the present application, by arranging a plurality of elastic support members 2 between the first partition 1 and the second partition 3, the force between the first partition 1 and the second partition 3 can be balanced to ensure the uniformity of the force acting on the object a, thereby improving the buffering effect.

[0065] Specifically, the buffer assembly in the present application is provided with two elastic support members 2 between the first partition 1 and the second partition 3. Alternatively, a larger first partition 1 and second partition 3 may be selected according to the size of the object a, and the number of elastic support members 2 may be increased.

[0066] After the buffer assembly is placed in the box 4, the first partition 1 abuts against the object a, the second partition 3 abuts against the inner wall of the box 4, and the elastic support member 2 expands and contracts along the first direction X and provides elastic supporting force, thereby increasing the buffering effect on the object a in the first direction X. Compared with simply increasing the material thickness or the number of layers, the material cost can be reduced.

[0067] like Figure 6-7 As shown, an embodiment of the present application provides a packaging box, including: a box body 4; and the above-mentioned buffer assembly, which is arranged in the box body 4.

[0068] In this application, object a is placed in box 4, and a buffer component is set between object a and box 4 to provide buffering protection for object a. By adopting the buffer component in this application, the cost of raw materials can be reduced while ensuring the buffering effect.

[0069] In one embodiment, two buffer assemblies are provided, and the two buffer assemblies respectively abut against two opposite inner walls of the box body 4 .

[0070] In the present application, when object a needs to be buffered and limited from two directions, buffer components can be set only on two opposite sides of object a to protect object a.

[0071] In another embodiment, four buffer assemblies are provided, and the four buffer assemblies abut against the inner walls of the box body 4 respectively.

[0072] In the present application, when object a needs to be buffered and limited from all sides, buffer components can be set on all sides of object a to protect object a in the right direction.

[0073] Optionally, for a special-shaped box 4, such as a pentagonal or hexagonal box 4, the number of buffer components can be selected according to actual conditions to ensure a buffering protection effect on the object a.

[0074] In one embodiment, the packaging box further includes a bottom plate 5 and a cover plate 6, which are respectively arranged at the bottom and top of the object.

[0075] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0076] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0077] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A buffer assembly, arranged in a box (4), characterized in that: The buffer assembly comprises a first partition (1), an elastic support member (2), and a second partition (3) arranged in sequence along a first direction; One end of the first partition (1) away from the elastic support member (2) abuts against an object; One end of the second partition (3) away from the elastic support member (2) abuts against the inner wall of the box body (4); The elastic support member (2) comprises a first connecting portion (21), an elastic telescopic portion (23), and a second connecting portion (22) sequentially arranged along a first direction; the first connecting portion (21) is detachably connected to the first partition (1); and the second connecting portion (22) is detachably connected to the second partition (3).

2. The buffer assembly according to claim 1, characterized in that The elastically retractable portion (23) comprises a first side (231) connected to the first connecting portion (21) and a second side (232) connected to the first side (231); an end of the second side (232) away from the first side (231) is connected to the second connecting portion (22); and the first side (231) and the second side (232) are arranged at an angle.

3. The buffer assembly according to claim 1 or 2, characterized in that: The elastic support member (2) has at least two elastic telescopic parts (23), and the at least two elastic telescopic parts (23) are arranged at intervals along the second direction; The second direction is perpendicular to the first direction.

4. The buffer assembly according to claim 3, characterized in that The elastic support member (2) has two elastic telescopic parts (23), and the two elastic telescopic parts (23) are arranged opposite to each other along the second direction. One end of the two elastic telescopic parts (23) is respectively connected to the two ends of the first connecting part (21), and the other end is respectively connected to the two ends of the second connecting part (22).

5. The buffer assembly according to claim 1, characterized in that The first partition (1) is provided with a first plug-in portion (11); The first connecting portion (21) comprises a first supporting plate (211) and a second plug-in portion (212) provided on the first supporting plate (211); the first supporting plate (211) abuts against the first partition (1); and the second plug-in portion (212) is plug-fitted with the first plug-in portion (11).

6. The buffer assembly according to claim 5, characterized in that The first partition (1) has a first hollow cavity (12), and the first plug-in portion (11) is arranged on a side of the first partition (1) facing the elastic support member (2).

7. The buffer assembly according to claim 1, characterized in that The second partition plate (3) is provided with a third plug-in portion (31); The second connecting portion (22) comprises a second supporting plate (221) and a fourth plug-in portion (222) provided on the second supporting plate (221); the second supporting plate (221) abuts against the second partition plate (3); and the fourth plug-in portion (222) is plug-fitted with the third plug-in portion (31).

8. The buffer assembly according to claim 7, characterized in that The second partition plate (3) has a second hollow cavity (32), and the third plug-in portion (31) is arranged on a side of the second partition plate (3) facing the elastic support member (2).

9. The buffer assembly according to claim 8, characterized in that The second partition plate (3) has a supporting portion (33) disposed in the second hollow cavity (32), and the supporting portion (33) supports the second hollow cavity (32) along the first direction.

10. The buffer assembly according to claim 1, wherein: A plurality of elastic support members (2) are arranged at intervals between the first partition plate (1) and the second partition plate (3).

11. A packaging box, characterized in that: include: Box (4); as well as The buffer assembly according to any one of claims 1 to 10, wherein the buffer assembly is arranged in the box (4).

12. The packaging box according to claim 11, characterized in that: There are two buffer assemblies, and the two buffer assemblies are respectively in contact with two opposite inner walls of the box (4); or Four buffer assemblies are provided, and the four buffer assemblies are respectively in contact with the inner walls of the box body (4).