CN220663514U - Buffer box and packing box - Google Patents

Abstract

The embodiment of the utility model provides a buffer box and a packing box, and relates to the technical field of packaging. The buffer box comprises a box body and a buffer block; wherein, the box body is an integrated paper structure, an inner buffer part is formed on the box body, and the buffer block is accommodated in the inner cavity of the box body; the inner buffer part comprises a first buffer part and a second buffer part, the first buffer part and the second buffer part are formed on the side wall of the box body, the first buffer part is used for propping against the side wall of the buffer block and the side face of the product, and the second buffer part is used for propping against the top wall of the buffer block and the end face of the product. When the buffer box is used, different surfaces of a product can be respectively propped against through the inner buffer part and the buffer block, and the inner buffer part and the buffer block can mutually prop against to ensure the position stability, so that the buffer protection of the product is realized. The packing box comprises an outer box body and a buffer box, and has all functions of the buffer box.

Description

Buffer box and packing box

Technical Field

The utility model relates to the technical field of packaging, in particular to a buffer box and a packaging box.

Background

When packaging the product, the product is usually required to be additionally filled with foaming materials so as to be propped against the product, and the collision of the product in the transportation and transfer processes is avoided.

However, the foaming material is not stable enough in position, and the foaming material is easy to shift in position in the box body, so that the cushioning protection effect on the product is lost, and the product is easy to be bumped.

Disclosure of Invention

The utility model provides a buffer box and a packing box, which can form a reinforced buffer structure through the matching of an inner buffer part and a buffer block, so that a product is buffered and protected, and the product is prevented from being bumped.

Embodiments of the utility model may be implemented as follows:

embodiments of the present utility model provide a buffer cassette comprising:

a box body and a buffer block;

wherein, the box body is an integrated paper structure, an inner buffer part is formed on the box body, and the buffer block is accommodated in the inner cavity of the box body;

the inner buffer part comprises a first buffer part and a second buffer part, the first buffer part and the second buffer part are formed on the side wall of the box body, the first buffer part is used for propping against the side wall of the buffer block and the side face of the product, and the second buffer part is used for propping against the top wall of the buffer block and the end face of the product.

Optionally, the box body includes bottom plate, front bezel, back plate, roof and curb plate, and front bezel, back plate and curb plate all are connected in the bottom plate, and the roof is connected in the front bezel one side of keeping away from the bottom plate, and first buffer connection is in the curb plate, and second buffer connection is in the back plate, and the buffer contacts with bottom plate and front bezel simultaneously.

Optionally, the first buffer portion includes first extension board and second extension board, and first extension board is connected between curb plate and second extension board, and first extension board and second extension board are used for buckling and form first buffer portion, and the tip and the bottom plate contact of second extension board, and the face of second extension board is used for supporting the side of product and the lateral wall of buffer block.

Optionally, the second buffer portion includes first board and the second board of extending, and first board of extending is connected between back board and the second board of extending, and first board and the second board of extending are used for buckling and form the second buffer portion, and the tip of the second board of extending is used for supporting the roof of holding the buffer block, and the face of the second board of extending is used for supporting the terminal surface of holding the product and the roof of buffer block.

Optionally, the inner buffer portion further includes a third buffer portion, the third buffer portion includes a first folded plate and a second folded plate that connect gradually, the first folded plate is connected in the roof, the first folded plate and the second folded plate are used for buckling to form the third buffer portion, the first folded plate supports and holds in the lateral wall of second buffer portion, the tip of second folded plate supports and holds in the front bezel, the face of second folded plate is used for supporting the top surface of product.

Optionally, the inner buffer portion further includes a fourth buffer portion, a clamping space is formed between the fourth buffer portion and the first buffer portion, and the buffer block is accommodated in the clamping space.

Optionally, the buffer block is provided with a second bayonet, and the second buffer part is provided with a protruding part, and the protruding part is in clamping fit with the second bayonet.

Optionally, the buffer block includes first bent plate, second bent plate, third bent plate and fourth bent plate of end to end in proper order, and first bent plate and third bent plate set up relatively, and second bent plate and fourth bent plate set up relatively, and first bent plate, second bent plate, third bent plate and fourth bent plate are used for buckling and form the buffer block, and the second bayonet socket is seted up at the second bent plate, and first bent plate supports and holds in the lateral wall of first buffer portion, and the second bent plate is used for supporting the lateral wall of second buffer portion and the bottom surface of product.

Optionally, the box body is provided with a limiting hole, and the limiting hole is used for allowing the product to pass through and extend into the inner cavity of the box body;

the box body comprises a supporting plate, the supporting plate is movably connected to the hole wall of the limiting hole, and the supporting plate is used for propping against the product under the condition that the product stretches into the inner cavity of the box body.

The embodiment of the utility model also provides a packaging box, which comprises an outer box body and the buffer box, wherein the buffer box is used for accommodating the end part of the product, and the outer box body is used for accommodating the buffer box and the product.

The buffer box and the packing box of the embodiment of the utility model have the beneficial effects that:

the buffer box comprises a box body and a buffer block; wherein, the box body is an integrated paper structure, an inner buffer part is formed on the box body, and the buffer block is accommodated in the inner cavity of the box body; the inner buffer part comprises a first buffer part and a second buffer part, the first buffer part and the second buffer part are formed on the side wall of the box body, the first buffer part is used for propping against the side wall of the buffer block and the side face of the product, and the second buffer part is used for propping against the top wall of the buffer block and the end face of the product. When the buffer box is used, different surfaces of a product can be respectively propped against through the inner buffer part and the buffer block, and the inner buffer part and the buffer block can mutually prop against to ensure the position stability, so that the buffer protection of the product is realized.

The packing box comprises an outer box body and a buffer box, and has all functions of the buffer box.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a buffer cartridge according to a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a buffer cartridge according to a second view angle of the present utility model;

FIG. 3 is a schematic view of a third view of a buffer cassette according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating the operation of a buffer cartridge provided in an embodiment of the present utility model;

FIG. 5 is a schematic view of a first view of a case according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a second view of the case according to the embodiment of the present utility model;

FIG. 7 is a schematic view of a third view of a case according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a fourth view of a case according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a buffer block according to an embodiment of the present utility model;

fig. 10 is a schematic working view of a packing box according to an embodiment of the present utility model.

Icon: 100-buffer box; 110-a box; 111-a bottom plate; 112-front plate; 113-a rear plate; 114-top plate; 115-side plates; 118-a second gusset; 119-a first pinch plate; 120-a first buffer; 121-a first support plate; 122-a second support plate; 123-a third support plate; 124-fourth support plate; 125-a fifth support plate; 126-sixth support plate; 129-a first bayonet; 130-a second buffer; 131-a first extension plate; 132-a second extension plate; 133-a third extension plate; 134-fourth extension plate; 135-a fifth extension plate; 136-sixth extension plate; 139-a boss; 140-buffer blocks; 141-a first flexural plate; 142-a second flexural plate; 143-a third flexural plate; 144-fourth curved plate; 149-a second bayonet; 150-a third buffer; 151-a first flap; 152-a second flap; 153-a third flap; 154-fourth flap; 155-a fifth flap; 159-a third bayonet; 160-fourth buffer portion; 161-a first baffle; 162-a second baffle; 170-limiting holes; 180-supporting plates; 200-product; 300-an outer box body; 1000-packaging box.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper," "lower," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship conventionally put in use of the inventive product 200 are merely for convenience of describing the present utility model and simplifying the description, it should not be construed as limiting the present utility model, since it is indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Unless specifically stated or limited otherwise, terms such as "disposed," "connected," and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

As the background art is said, when packaging products, it is usually necessary to fill the products with additional foaming materials to achieve the purpose of supporting the products and avoiding the collision of the products during transportation and transfer. However, the foaming material is not stable enough in position, and the foaming material is easy to shift in position in the box body, so that the cushioning protection effect on the product is lost, and the product is easy to be bumped.

Referring to fig. 1 to 10, the buffer box 100 and the packing box 1000 according to the embodiment of the present utility model can solve the above-mentioned problems, and will be described in detail.

Referring to fig. 1 to 5, the buffer cartridge 100 includes a cartridge body 110 and a buffer block 140;

wherein, the box body 110 is an integral paper structure, an inner buffer portion is formed on the box body 110, the buffer block 140 is accommodated in the inner cavity of the box body 110 and abuts against the inner buffer portion, the inner buffer portion is used for abutting against the end face and the side face of the product 200, and the buffer block 140 is used for abutting against the bottom face of the product 200.

When the buffer box 100 is used, different surfaces of the product 200 can be respectively abutted by the inner buffer part and the buffer block 140, and the inner buffer part and the buffer block 140 can be abutted to each other to ensure the position stability, so that the buffer protection of the product 200 is realized.

It should be noted that, the inner cavity of the box 110 is used for accommodating the end of the product 200, a through hole for the product 200 to pass through may be formed on a certain side wall of the box 110, and a certain side of the box 110 may be in a completely open structure, so that the end of the product 200 is conveniently placed into the inner cavity of the box 110.

In this embodiment, the case 110 includes a bottom plate 111, a front plate 112, a rear plate 113, a top plate 114 and a side plate 115, wherein the front plate 112, the rear plate 113 and the side plate 115 are all connected to the bottom plate 111, and the top plate 114 is connected to a side of the front plate 112 away from the bottom plate 111. After the box 110 is folded, the front plate 112 and the rear plate 113 are disposed opposite to each other, the bottom plate 111 and the top plate 114 are disposed opposite to each other, the number of the side plates 115 is two, and the two side plates 115 are respectively connected to two ends of the bottom plate 111.

And, the box 110 is provided with a limiting hole 170, and the limiting hole 170 is used for allowing the product 200 to pass through and extend into the inner cavity of the box 110. Specifically, the limiting hole 170 is formed in the front plate 112, so that the product 200 can move from the front plate 112 to the rear plate 113 to pass through the limiting hole 170 and extend into the inner cavity of the box body 110.

In this embodiment, the limiting hole 170 is in a strip shape, and is adapted to the shape of the product 200. Of course, in other embodiments of the present utility model, the shape of the spacing holes 170 may be adaptively adjusted as the profile of the fitting product 200 changes.

In addition, the box 110 further includes a supporting plate 180, where the supporting plate 180 is movably connected to a wall of the limiting hole 170, and the supporting plate 180 is used to prop against the product 200 when the product 200 stretches into the inner cavity of the box 110.

In this embodiment, the number of the supporting plates 180 is multiple, and the plurality of supporting plates 180 can be respectively connected to the upper hole wall, the lower hole wall, the left hole wall and the right hole wall of the limiting hole 170, and are respectively used for supporting different surfaces of the product 200, and the setting positions of the supporting plates 180 connecting the upper hole wall and the lower hole wall are corresponding. The plurality of pallets 180 may be provided at intervals in the extending direction of the stopper hole 170.

Under the condition that the end part of the product 200 extends into the inner cavity of the box body 110, the supporting plate 180 can respectively support the top surface, the bottom surface and the side surfaces of the product 200, on one hand, the orifice position of the limit hole 170 can be structurally reinforced, and the orifice of the limit hole 170 is prevented from being excessively stressed by the product 200; on the other hand, the inner buffer portion and the buffer block 140 can be matched to respectively support different surfaces and different positions of the product 200, which is helpful for improving the buffer protection effect of the product 200.

Referring to fig. 1 to 5, the inner buffer portion includes a first buffer portion 120 and a second buffer portion 130, the first buffer portion 120 and the second buffer portion 130 are formed on a side wall of the case 110, the first buffer portion 120 is used for abutting against a side wall of the buffer block 140 and a side surface of the product 200, and the second buffer portion 130 is used for abutting against a top wall of the buffer block 140 and an end surface of the product 200.

Specifically, the first buffer portion 120 is connected to the side plate 115, the second buffer portion 130 is connected to the rear plate 113, and the buffer block 140 is simultaneously in contact with the bottom plate 111 and the front plate 112.

In the above technical solution, by providing the first buffer portion 120 and the second buffer portion 130, the product 200 and the buffer block 140 can be respectively supported from different positions, which is helpful for improving the position stability of the buffer block 140 and ensuring the buffer protection effect on the product 200.

Referring to fig. 5 to 8, the first buffer portion 120 includes a first support plate 121 and a second support plate 122, the first support plate 121 is connected between the side plate 115 and the second support plate 122, the first support plate 121 and the second support plate 122 are used for bending to form the first buffer portion 120, an end of the second support plate 122 is in contact with the bottom plate 111, and a plate surface of the second support plate 122 is used for supporting a side surface of the product 200 and a side wall of the buffer block 140.

The first buffer portion 120 further includes a third support plate 123, a fourth support plate 124, a fifth support plate 125, and a sixth support plate 126 that are sequentially connected, where the third support plate 123 is connected to the second support plate 122, and the extending directions of the first support plate 121 to the second support plate 122 are perpendicular to the extending directions of the third support plate 123 to the sixth support plate 126.

In the above technical solution, the first buffer portion 120 may be formed by folding a plurality of support plates, and the first buffer portion 120 is of a hollow structure, and may achieve the holding and buffering of the product 200 by compressing the volume of the hollow cavity while having a certain structural strength.

In this embodiment, the number of the first buffer parts 120 is two, and the two first buffer parts 120 are respectively disposed at two ends of the bottom plate 111 connected to the side plates 115. Of course, in other embodiments of the present utility model, the first buffer portion 120 may be disposed at only one end of the bottom plate 111.

It is noted that the second support plate 122 is provided with a first bayonet 129, the bottom plate 111 is connected with a first buckle 119, and the first buckle 119 is in clamping fit with the first bayonet 129, so that the position stability of the first buffer portion 120 can be improved by improving the connection strength between the first buffer portion 120 and the bottom plate 111 and between the first buffer portion and the side plate 115.

Referring to fig. 5 to 8, the second buffer portion 130 includes a first extension plate 131 and a second extension plate 132, the first extension plate 131 is connected between the rear plate 113 and the second extension plate 132, the first extension plate 131 and the second extension plate 132 are used for bending to form the second buffer portion 130, an end of the second extension plate 132 is used for abutting against a top wall of the buffer block 140, and a plate surface of the second extension plate 132 is used for abutting against an end surface of the product 200 and a top wall of the buffer block 140.

The second buffer portion 130 further includes a third extension plate 133, a fourth extension plate 134, a fifth extension plate 135, and a sixth extension plate 136, which are sequentially connected, wherein the third extension plate 133 is connected to the second extension plate 132, and the extension directions of the first extension plate 131 to the second extension plate 132 are perpendicular to the extension directions of the third extension plate 133 to the sixth extension plate 136.

In the above technical solution, the second buffer portion 130 may be formed by folding a plurality of extension boards, and the second buffer portion 130 has a hollow structure, and may realize the holding and buffering of the product 200 by compressing the volume of the hollow cavity while having a certain structural strength.

In this embodiment, the number of the second buffer portions 130 is two, and the two second buffer portions 130 are disposed at two ends of the rear plate 113 near the side plate 115. Of course, in other embodiments of the present utility model, the second buffer portion 130 may be disposed at only one end of the rear plate 113.

In addition, the third extension plates 133 on the two second buffer portions 130 are respectively connected to the sides of the two second extension plates 132 away from each other, so as to avoid interference of the two second buffer portions 130 in the unfolded state.

It is noted that the second buffer portion 130 is formed with a protruding portion 139, and the buffer block 140 is provided with a second bayonet 149, and the protruding portion 139 is in snap fit with the second bayonet 149. Specifically, the protrusion 139 is formed at a side of the second extension plate 132 remote from the first extension plate 131, so that the second bayonet 149 is conveniently inserted after the folding molding, thereby improving the relative positional stability of the second buffer 130 and the buffer block 140.

Referring to fig. 5 to 8, the inner buffer portion further includes a third buffer portion 150, the third buffer portion 150 includes a first folded plate 151 and a second folded plate 152 connected in sequence, the first folded plate 151 is connected to the top plate 114, the first folded plate 151 and the second folded plate 152 are used for bending to form the third buffer portion 150, the first folded plate 151 abuts against a side wall of the second buffer portion 130, an end portion of the second folded plate 152 abuts against the front plate 112, and a plate surface of the second folded plate 152 is used for abutting against a top surface of the product 200.

The third buffer 150 further includes a third flap 153, a fourth flap 154, and a fifth flap 155, wherein the third flap 153 is connected to the second flap 152, and the extending directions of the third flap 153 to the fifth flap 155 are identical to the extending directions of the first flap 151 to the second flap 152.

In the above technical solution, the third buffer portion 150 may be formed by folding a plurality of folded plates, and the third buffer portion 150 has a hollow structure, and may realize the holding and buffering of the product 200 by compressing the volume of the hollow cavity while having a certain structural strength.

It is noted that a third bayonet 159 is formed between the top plate 114 and the first folding plate 151, the rear plate 113 is connected with a second buckle plate 118, and the second buckle plate 118 is in snap fit with the third bayonet 159, so as to help to improve the stability of the relative position of the third buffer portion 150.

Referring to fig. 3, the inner buffer part further includes a fourth buffer part 160, a clamping space is formed between the fourth buffer part 160 and the first buffer part 120, and the buffer block 140 is accommodated in the clamping space.

In the above technical solution, the stable clamping of the buffer block 140 can be realized through the cooperation of the fourth buffer portion 160 and the first buffer portion 120, which is conducive to improving the position stability of the buffer block 140 and the buffer protection effect on the product 200, so as to avoid the buffer block 140 from easily deforming or changing the position when receiving the extrusion acting force of the product 200.

Referring to fig. 5 to 8, in detail, the fourth buffer 160 includes a first baffle 161 and a second baffle 162 connected to each other, the first baffle 161 is connected to the bottom plate 111, the second baffle 162 is connected to the rear plate 113, the first baffle 161 and the second baffle 162 are used for bending to form the fourth buffer 160, and end portions of the first baffle 161 and the second baffle 162 are abutted against the lower buffer block 140.

Referring to fig. 3 and 9, the buffer block 140 includes a first bent plate 141, a second bent plate 142, a third bent plate 143 and a fourth bent plate 144 that are sequentially connected end to end, the first bent plate 141 and the third bent plate 143 are oppositely disposed, the second bent plate 142 and the fourth bent plate 144 are oppositely disposed, the first bent plate 141, the second bent plate 142, the third bent plate 143 and the fourth bent plate 144 are used for bending to form the buffer block 140, the second bayonet 149 is formed in the second bent plate 142, the first bent plate 141 is propped against the sidewall of the first buffer portion 120, and the second bent plate 142 is used for propping against the sidewall of the second buffer portion 130 and the bottom surface of the product 200.

Specifically, the second bayonet 149 is opened on the second bending plate 142.

In the above technical solution, the buffer block 140 may be formed by folding a plurality of bending plates, and the buffer portion has a hollow structure, and may realize the holding buffer of the product 200 by compressing the volume of the hollow cavity while having a certain structural strength.

Compared with the foaming material in the prior art, the buffer block 140 can be made of paper material, has good recoverability and degradability, and meets the environmental protection requirement; the method also has the advantages of simple production process, short production period and low cost; compared with the whole foaming material, the foam material has the advantages of smaller volume and convenience in transportation and storage.

Referring to fig. 4 and 10, an embodiment of the present utility model further provides a packaging box 1000, where the packaging box 1000 includes an outer box 300 and a buffer box 100, the buffer box 100 is used for accommodating an end portion of the product 200, the outer box 300 is used for accommodating the buffer box 100 and the product 200, the stability of the relative position of the product 200 in the outer box 300 can be ensured by the buffer box 100 during transportation and transfer, and the outer box 300 can play a role of shielding and protecting the buffer box 100 and a middle portion of the product 200 not accommodated by the buffer box 100.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A buffer cassette, comprising:

a case (110) and a buffer block (140);

the box body (110) is of an integrated paper structure, an inner buffer part is formed on the box body (110), and the buffer block (140) is accommodated in an inner cavity of the box body (110);

the inner buffer part comprises a first buffer part (120) and a second buffer part (130), the first buffer part (120) and the second buffer part (130) are both formed on the side wall of the box body (110), the first buffer part (120) is used for propping against the side wall of the buffer block (140) and the side surface of the product (200), and the second buffer part (130) is used for propping against the top wall of the buffer block (140) and the end surface of the product (200).

2. The cushion box according to claim 1, wherein the box body (110) includes a bottom plate (111), a front plate (112), a rear plate (113), a top plate (114) and a side plate (115), the front plate (112), the rear plate (113) and the side plate (115) are all connected to the bottom plate (111), the top plate (114) is connected to a side of the front plate (112) away from the bottom plate (111), the first cushion portion (120) is connected to the side plate (115), the second cushion portion (130) is connected to the rear plate (113), and the cushion block (140) is simultaneously in contact with the bottom plate (111) and the front plate (112).

3. The buffer box according to claim 2, wherein the first buffer portion (120) comprises a first support plate (121) and a second support plate (122), the first support plate (121) is connected between the side plate (115) and the second support plate (122), the first support plate (121) and the second support plate (122) are used for bending to form the first buffer portion (120), the end portion of the second support plate (122) is in contact with the bottom plate (111), and the plate surface of the second support plate (122) is used for supporting the side surface of the product (200) and the side wall of the buffer block (140).

4. The cushion box according to claim 2, wherein the second cushion portion (130) includes a first extension plate (131) and a second extension plate (132), the first extension plate (131) is connected between the rear plate (113) and the second extension plate (132), the first extension plate (131) and the second extension plate (132) are used for bending to form the second cushion portion (130), an end portion of the second extension plate (132) is used for abutting against a top wall of the cushion block (140), and a plate surface of the second extension plate (132) is used for abutting against an end face of the product (200) and a top wall of the cushion block (140).

5. The case of claim 2, wherein the inner cushioning portion further comprises a third cushioning portion (150), the third cushioning portion (150) comprising a first flap (151) and a second flap (152) connected in sequence, the first flap (151) being connected to the top panel (114), the first flap (151) and the second flap (152) being configured to bend to form the third cushioning portion (150), the first flap (151) being held against a side wall of the second cushioning portion (130), an end of the second flap (152) being held against the front panel (112), a panel surface of the second flap (152) being configured to be held against a top surface of the product (200).

6. The buffer cartridge according to claim 2, wherein the inner buffer portion further comprises a fourth buffer portion (160), a clamping space is formed between the fourth buffer portion (160) and the first buffer portion (120), and the buffer block (140) is accommodated in the clamping space.

7. The buffer box according to any one of claims 2-6, wherein the buffer block (140) is provided with a second bayonet (149), a protruding portion (139) is formed on the second buffer portion (130), and the protruding portion (139) is in clamping fit with the second bayonet (149).

8. The buffer box according to claim 7, wherein the buffer block (140) comprises a first bending plate (141), a second bending plate (142), a third bending plate (143) and a fourth bending plate (144) which are connected end to end in sequence, the first bending plate (141) and the third bending plate (143) are oppositely arranged, the second bending plate (142) and the fourth bending plate (144) are oppositely arranged, the first bending plate (141), the second bending plate (142), the third bending plate (143) and the fourth bending plate (144) are used for bending to form the buffer block (140), the second bayonet (149) is formed in the second bending plate (142), the first bending plate (141) is propped against the side wall of the first buffer part (120), and the second bending plate (142) is used for propping against the side wall of the second buffer part (130) and the bottom surface of the product (200).

9. The buffer box according to any of claims 1-6, wherein the box body (110) is provided with a limiting hole (170), and the limiting hole (170) is used for the product (200) to pass through and extend into an inner cavity of the box body (110);

the box body (110) comprises a supporting plate (180), the supporting plate (180) is movably connected to the hole wall of the limiting hole (170), and the supporting plate (180) is used for propping against the product (200) under the condition that the product (200) stretches into the inner cavity of the box body (110).

10. A packaging box, characterized by comprising an outer box for housing the ends of the product (200) and a buffer box according to any one of claims 1-9, the outer box being adapted to house the buffer box and the product (200).